Merge remote-tracking branch 'upstream/master' into no-ivar-in-modules

* upstream/master: (507 commits)
  Add dropdowns documentation
  Convert migration to populate latest merge request ID into a background migration
  Set 0.69.0 instead of latest for codeclimate image
  De-duplicate background migration matchers defined in spec/support/migrations_helpers.rb
  Update database_debugging.md
  Update database_debugging.md
  Move installation of apps higher
  Change to Google Kubernetes Cluster and add internal links
  Add Ingress description from official docs
  Add info on creating your own k8s cluster from the cluster page
  Add info about the installed apps in the Cluster docs
  Resolve "lock/confidential issuable sidebar custom svg icons iteration"
  Update HA README.md to clarify GitLab support does not troubleshoot DRBD.
  Update license_finder to 3.1.1
  Make sure NotesActions#noteable returns a Noteable in the update action
  Cache the number of user SSH keys
  Adjust openid_connect_spec to use `raise_error`
  Resolve "Clicking on GPG verification badge jumps to top of the page"
  Add changelog for container repository path update
  Update container repository path reference
  ...

1064 files changed, 28956 insertions, 8722 deletions

diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index fed5971233d..ba19d69745c 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -416,12 +416,8 @@ ee_compat_check:
     - /^[\d-]+-stable(-ee)?/
     - branches@gitlab-org/gitlab-ee
     - branches@gitlab/gitlab-ee
-  allow_failure: yes
+  allow_failure: no
   retry: 0
-  cache:
-    key: "ee_compat_check_repo"
-    paths:
-      - ee_compat_check/ee-repo/
   artifacts:
     name: "${CI_JOB_NAME}_${CI_COMIT_REF_NAME}_${CI_COMMIT_SHA}"
     when: on_failure
@@ -453,6 +449,7 @@ db:migrate:reset-mysql:
   stage: test
   variables:
     SETUP_DB: "false"
+    CREATE_DB_USER: "true"
   script:
     - git fetch https://gitlab.com/gitlab-org/gitlab-ce.git v9.3.0
     - git checkout -f FETCH_HEAD
@@ -497,6 +494,7 @@ db:rollback-mysql:
   variables:
     SIZE: "1"
     SETUP_DB: "false"
+    CREATE_DB_USER: "true"
   script:
     - git clone https://gitlab.com/gitlab-org/gitlab-test.git
        /home/git/repositories/gitlab-org/gitlab-test.git
@@ -532,7 +530,6 @@ gitlab:assets:compile:
     NODE_ENV: "production"
     RAILS_ENV: "production"
     SETUP_DB: "false"
-    USE_DB: "false"
     SKIP_STORAGE_VALIDATION: "true"
     WEBPACK_REPORT: "true"
     NO_COMPRESSION: "true"
@@ -581,12 +578,22 @@ codequality:
   script:
     - cp .rubocop.yml .rubocop.yml.bak
     - grep -v "rubocop-gitlab-security" .rubocop.yml.bak > .rubocop.yml
-    - docker run --env CODECLIMATE_CODE="$PWD" --volume "$PWD":/code --volume /var/run/docker.sock:/var/run/docker.sock --volume /tmp/cc:/tmp/cc codeclimate/codeclimate analyze -f json > raw_codeclimate.json
+    - docker run --env CODECLIMATE_CODE="$PWD" --volume "$PWD":/code --volume /var/run/docker.sock:/var/run/docker.sock --volume /tmp/cc:/tmp/cc codeclimate/codeclimate:0.69.0 analyze -f json > raw_codeclimate.json
     - cat raw_codeclimate.json | docker run -i stedolan/jq -c 'map({check_name,fingerprint,location})' > codeclimate.json
     - mv .rubocop.yml.bak .rubocop.yml
   artifacts:
     paths: [codeclimate.json]
 
+qa:internal:
+  stage: test
+  variables:
+    SETUP_DB: "false"
+  services: []
+  script:
+    - cd qa/
+    - bundle install
+    - bundle exec rspec
+
 coverage:
   <<: *dedicated-runner
   <<: *except-docs
diff --git a/.scss-lint.yml b/.scss-lint.yml
index 16a168b7c60..dcd4cac780a 100644
--- a/.scss-lint.yml
+++ b/.scss-lint.yml
@@ -14,7 +14,7 @@ linters:
 
   # Whether or not to prefer `border: 0` over `border: none`.
   BorderZero:
-    enabled: false
+    enabled: true
 
   # Reports when you define a rule set using a selector with chained classes
   # (a.k.a. adjoining classes).
@@ -241,7 +241,7 @@ linters:
 
   # Numeric values should not contain unnecessary fractional portions.
   UnnecessaryMantissa:
-    enabled: false
+    enabled: true
 
   # Do not use parent selector references (&) when they would otherwise
   # be unnecessary.
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2f13eca2caf..f85b78cb277 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,38 @@
 documentation](doc/development/changelog.md) for instructions on adding your own
 entry.
 
+## 10.1.4 (2017-11-14)
+
+### Fixed (4 changes)
+
+- Don't try to create fork network memberships for forks with a missing source. !15366
+- Formats bytes to human reabale number in registry table.
+- Prevent error when authorizing an admin-created OAauth application without a set owner.
+- Prevents position update for image diff notes.
+
+
+## 10.1.3 (2017-11-10)
+
+- [SECURITY] Prevent OAuth phishing attack by presenting detailed wording about app to user during authorization.
+- [FIXED] Fix cancel button not working while uploading on the new issue page. !15137
+- [FIXED] Fix webhooks recent deliveries. !15146 (Alexander Randa (@randaalex))
+- [FIXED] Fix issues with forked projects of which the source was deleted. !15150
+- [FIXED] Fix GPG signature popup info in Safari and Firefox. !15228
+- [FIXED] Make sure group and project creation is blocked for new users that are external by default.
+- [FIXED] Fix arguments Import/Export error importing project merge requests.
+- [FIXED] Fix diff parser so it tolerates to diff special markers in the content.
+- [FIXED] Fix a migration that adds merge_requests_ff_only_enabled column to MR table.
+- [FIXED] Render 404 when polling commit notes without having permissions.
+- [FIXED] Show error message when fast-forward merge is not possible.
+- [FIXED] Avoid regenerating the ref path for the environment.
+- [PERFORMANCE] Remove Filesystem check metrics that use too much CPU to handle requests.
+
+## 10.1.2 (2017-11-08)
+
+- [SECURITY] Add X-Content-Type-Options header in API responses to make it more difficult to find other vulnerabilities.
+- [SECURITY] Properly translate IP addresses written in decimal, octal, or other formats in SSRF protections in project imports.
+- [FIXED] Fix TRIGGER checks for MySQL.
+
 ## 10.1.1 (2017-10-31)
 
 - [FIXED] Auto Devops kubernetes default namespace is now correctly built out of gitlab project group-name. !14642 (Mircea Danila Dumitrescu)
diff --git a/GITALY_SERVER_VERSION b/GITALY_SERVER_VERSION
index c5d4cee36a1..7f422a161ae 100644
--- a/GITALY_SERVER_VERSION
+++ b/GITALY_SERVER_VERSION
@@ -1 +1 @@
-0.51.0
+0.53.0
diff --git a/GITLAB_WORKHORSE_VERSION b/GITLAB_WORKHORSE_VERSION
index 15a27998172..bea438e9ade 100644
--- a/GITLAB_WORKHORSE_VERSION
+++ b/GITLAB_WORKHORSE_VERSION
@@ -1 +1 @@
-3.3.0
+3.3.1
diff --git a/Gemfile b/Gemfile
index 63d3d214a5a..e357d76328a 100644
--- a/Gemfile
+++ b/Gemfile
@@ -343,7 +343,7 @@ group :development, :test do
 
   gem 'benchmark-ips', '~> 2.3.0', require: false
 
-  gem 'license_finder', '~> 2.1.0', require: false
+  gem 'license_finder', '~> 3.1', require: false
   gem 'knapsack', '~> 1.11.0'
 
   gem 'activerecord_sane_schema_dumper', '0.2'
@@ -398,7 +398,7 @@ group :ed25519 do
 end
 
 # Gitaly GRPC client
-gem 'gitaly-proto', '~> 0.51.0', require: 'gitaly'
+gem 'gitaly-proto', '~> 0.52.0', require: 'gitaly'
 
 gem 'toml-rb', '~> 0.3.15', require: false
 
diff --git a/Gemfile.lock b/Gemfile.lock
index ae145ca5f69..dc56e6e8f82 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -83,6 +83,7 @@ GEM
     bindata (2.4.1)
     binding_of_caller (0.7.2)
       debug_inspector (>= 0.0.1)
+    blankslate (2.1.2.4)
     bootstrap-sass (3.3.6)
       autoprefixer-rails (>= 5.2.1)
       sass (>= 3.3.4)
@@ -274,7 +275,7 @@ GEM
       po_to_json (>= 1.0.0)
       rails (>= 3.2.0)
     gherkin-ruby (0.3.2)
-    gitaly-proto (0.51.0)
+    gitaly-proto (0.52.0)
       google-protobuf (~> 3.1)
       grpc (~> 1.0)
     github-linguist (4.7.6)
@@ -451,11 +452,13 @@ GEM
       actionmailer (>= 3.2)
       letter_opener (~> 1.0)
       railties (>= 3.2)
-    license_finder (2.1.0)
+    license_finder (3.1.1)
       bundler
       httparty
       rubyzip
       thor
+      toml (= 0.1.2)
+      with_env (> 1.0)
       xml-simple
     licensee (8.7.0)
       rugged (~> 0.24)
@@ -571,6 +574,8 @@ GEM
       activerecord (>= 4.0, < 5.2)
     parser (2.4.0.0)
       ast (~> 2.2)
+    parslet (1.5.0)
+      blankslate (~> 2.0)
     path_expander (1.0.1)
     peek (1.0.1)
       concurrent-ruby (>= 0.9.0)
@@ -898,6 +903,8 @@ GEM
     tilt (2.0.6)
     timecop (0.8.1)
     timfel-krb5-auth (0.8.3)
+    toml (0.1.2)
+      parslet (~> 1.5.0)
     toml-rb (0.3.15)
       citrus (~> 3.0, > 3.0)
     truncato (0.7.10)
@@ -952,6 +959,7 @@ GEM
       builder
       expression_parser
       rinku
+    with_env (1.1.0)
     xml-simple (1.1.5)
     xpath (2.1.0)
       nokogiri (~> 1.3)
@@ -1026,7 +1034,7 @@ DEPENDENCIES
   gettext (~> 3.2.2)
   gettext_i18n_rails (~> 1.8.0)
   gettext_i18n_rails_js (~> 1.2.0)
-  gitaly-proto (~> 0.51.0)
+  gitaly-proto (~> 0.52.0)
   github-linguist (~> 4.7.0)
   gitlab-flowdock-git-hook (~> 1.0.1)
   gitlab-markup (~> 1.6.2)
@@ -1058,7 +1066,7 @@ DEPENDENCIES
   knapsack (~> 1.11.0)
   kubeclient (~> 2.2.0)
   letter_opener_web (~> 1.3.0)
-  license_finder (~> 2.1.0)
+  license_finder (~> 3.1)
   licensee (~> 8.7.0)
   lograge (~> 0.5)
   loofah (~> 2.0.3)
@@ -1185,4 +1193,4 @@ DEPENDENCIES
   wikicloth (= 0.8.1)
 
 BUNDLED WITH
-   1.15.4
+   1.16.0
diff --git a/PROCESS.md b/PROCESS.md
index 06963243b25..7c8db689256 100644
--- a/PROCESS.md
+++ b/PROCESS.md
@@ -141,21 +141,29 @@ the stable branch are:
 * Fixes for security issues
 * New or updated translations (as long as they do not touch application code)
 
-During the feature freeze all merge requests that are meant to go into the upcoming
-release should have the correct milestone assigned _and_ have the label
-~"Pick into Stable" set, so that release managers can find and pick them.
-Merge requests without a milestone and this label will
-not be merged into any stable branches.
-
-Fixes marked like this will be shipped in the next RC for that release. Once
-the final RC has been prepared ready for release on the 22nd, further fixes
-marked ~"Pick into Stable" will go into a patch for that release.
-
-If a merge request is to be picked into more than one release it will also need
-the ~"Pick into Backports" label set to remind the release manager to change
-the milestone after cherry-picking. As before, it should still have the
-~"Pick into Stable" label and the milestone of the highest release it will be
-picked into.
+During the feature freeze all merge requests that are meant to go into the
+upcoming release should have the correct milestone assigned _and_ the
+`Pick into X.Y` label where `X.Y` is equal to the milestone, so that release
+managers can find and pick them.
+Merge requests without this label will not be picked into the stable release.
+
+For example, if the upcoming release is `10.2.0` you will need to set the
+`Pick into 10.2` label.
+
+Fixes marked like this will be shipped in the next RC (before the 22nd), or the
+next patch release.
+
+If a merge request is to be picked into more than one release it will need one
+`Pick into X.Y` label per release where the merge request should be back-ported
+to.
+
+For example, if the current patch release is `10.1.1` and a regression fix needs
+to be backported down to the `9.5` release, you will need to assign it the
+`10.1` milestone and the following labels:
+
+- `Pick into 10.1`
+- `Pick into 10.0`
+- `Pick into 9.5`
 
 ### Asking for an exception
 
diff --git a/app/assets/images/emoji.png b/app/assets/images/emoji.png
index 5dcd9c09b70..723c2c3f4c8 100644
--- a/app/assets/images/emoji.png
+++ b/app/assets/images/emoji.png
diff --git a/app/assets/images/emoji/gay_pride_flag.png b/app/assets/images/emoji/gay_pride_flag.png
new file mode 100644
index 00000000000..1bec5f2ffd7
--- /dev/null
+++ b/app/assets/images/emoji/gay_pride_flag.png
diff --git a/app/assets/images/emoji/mrs_claus.png b/app/assets/images/emoji/mrs_claus.png
index 078f0657f95..9cf2458df1a 100644
--- a/app/assets/images/emoji/mrs_claus.png
+++ b/app/assets/images/emoji/mrs_claus.png
diff --git a/app/assets/images/emoji/speech_left.png b/app/assets/images/emoji/speech_left.png
new file mode 100644
index 00000000000..00c05959bcd
--- /dev/null
+++ b/app/assets/images/emoji/speech_left.png
diff --git a/app/assets/images/emoji@2x.png b/app/assets/images/emoji@2x.png
index b0fa9e1139e..987279c13cc 100644
--- a/app/assets/images/emoji@2x.png
+++ b/app/assets/images/emoji@2x.png
diff --git a/app/assets/javascripts/abuse_reports.js b/app/assets/javascripts/abuse_reports.js
index 3de192d56eb..d2d3a257c0d 100644
--- a/app/assets/javascripts/abuse_reports.js
+++ b/app/assets/javascripts/abuse_reports.js
@@ -1,3 +1,5 @@
+import { truncate } from './lib/utils/text_utility';
+
 const MAX_MESSAGE_LENGTH = 500;
 const MESSAGE_CELL_SELECTOR = '.abuse-reports .message';
 
@@ -15,7 +17,7 @@ export default class AbuseReports {
     if (reportMessage.length > MAX_MESSAGE_LENGTH) {
       $messageCellElement.data('original-message', reportMessage);
       $messageCellElement.data('message-truncated', 'true');
-      $messageCellElement.text(window.gl.text.truncate(reportMessage, MAX_MESSAGE_LENGTH));
+      $messageCellElement.text(truncate(reportMessage, MAX_MESSAGE_LENGTH));
     }
   }
 
diff --git a/app/assets/javascripts/copy_as_gfm.js b/app/assets/javascripts/behaviors/copy_as_gfm.js
index 93b0cbf4209..e7dc4ef8304 100644
--- a/app/assets/javascripts/copy_as_gfm.js
+++ b/app/assets/javascripts/behaviors/copy_as_gfm.js
@@ -1,7 +1,8 @@
 /* eslint-disable class-methods-use-this, object-shorthand, no-unused-vars, no-use-before-define, no-new, max-len, no-restricted-syntax, guard-for-in, no-continue */
+
 import _ from 'underscore';
-import { insertText, getSelectedFragment, nodeMatchesSelector } from './lib/utils/common_utils';
-import { placeholderImage } from './lazy_loader';
+import { insertText, getSelectedFragment, nodeMatchesSelector } from '../lib/utils/common_utils';
+import { placeholderImage } from '../lazy_loader';
 
 const gfmRules = {
   // The filters referenced in lib/banzai/pipeline/gfm_pipeline.rb convert
@@ -284,7 +285,7 @@ const gfmRules = {
   },
 };
 
-class CopyAsGFM {
+export class CopyAsGFM {
   constructor() {
     $(document).on('copy', '.md, .wiki', (e) => { CopyAsGFM.copyAsGFM(e, CopyAsGFM.transformGFMSelection); });
     $(document).on('copy', 'pre.code.highlight, .diff-content .line_content', (e) => { CopyAsGFM.copyAsGFM(e, CopyAsGFM.transformCodeSelection); });
@@ -469,7 +470,12 @@ class CopyAsGFM {
   }
 }
 
-window.gl = window.gl || {};
-window.gl.CopyAsGFM = CopyAsGFM;
+// Export CopyAsGFM as a global for rspec to access
+// see /spec/features/copy_as_gfm_spec.rb
+if (process.env.NODE_ENV !== 'production') {
+  window.CopyAsGFM = CopyAsGFM;
+}
 
-new CopyAsGFM();
+export default function initCopyAsGFM() {
+  return new CopyAsGFM();
+}
diff --git a/app/assets/javascripts/behaviors/index.js b/app/assets/javascripts/behaviors/index.js
index 44b2c974b9e..671532394a9 100644
--- a/app/assets/javascripts/behaviors/index.js
+++ b/app/assets/javascripts/behaviors/index.js
@@ -1,5 +1,6 @@
 import './autosize';
 import './bind_in_out';
+import initCopyAsGFM from './copy_as_gfm';
 import './details_behavior';
 import installGlEmojiElement from './gl_emoji';
 import './quick_submit';
@@ -7,3 +8,4 @@ import './requires_input';
 import './toggler_behavior';
 
 installGlEmojiElement();
+initCopyAsGFM();
diff --git a/app/assets/javascripts/boards/components/modal/footer.js b/app/assets/javascripts/boards/components/modal/footer.js
index de9e44cef35..182957113a2 100644
--- a/app/assets/javascripts/boards/components/modal/footer.js
+++ b/app/assets/javascripts/boards/components/modal/footer.js
@@ -3,6 +3,7 @@
 import Vue from 'vue';
 import Flash from '../../../flash';
 import './lists_dropdown';
+import { pluralize } from '../../../lib/utils/text_utility';
 
 const ModalStore = gl.issueBoards.ModalStore;
 
@@ -21,7 +22,7 @@ gl.issueBoards.ModalFooter = Vue.extend({
     submitText() {
       const count = ModalStore.selectedCount();
 
-      return `Add ${count > 0 ? count : ''} ${gl.text.pluralize('issue', count)}`;
+      return `Add ${count > 0 ? count : ''} ${pluralize('issue', count)}`;
     },
   },
   methods: {
diff --git a/app/assets/javascripts/boards/filtered_search_boards.js b/app/assets/javascripts/boards/filtered_search_boards.js
index 3f083655f95..184665f395c 100644
--- a/app/assets/javascripts/boards/filtered_search_boards.js
+++ b/app/assets/javascripts/boards/filtered_search_boards.js
@@ -11,7 +11,8 @@ export default class FilteredSearchBoards extends gl.FilteredSearchManager {
     // Issue boards is slightly different, we handle all the requests async
     // instead or reloading the page, we just re-fire the list ajax requests
     this.isHandledAsync = true;
-    this.cantEdit = cantEdit;
+    this.cantEdit = cantEdit.filter(i => typeof i === 'string');
+    this.cantEditWithValue = cantEdit.filter(i => typeof i === 'object');
   }
 
   updateObject(path) {
@@ -42,7 +43,9 @@ export default class FilteredSearchBoards extends gl.FilteredSearchManager {
     this.filteredSearchInput.dispatchEvent(new Event('input'));
   }
 
-  canEdit(tokenName) {
-    return this.cantEdit.indexOf(tokenName) === -1;
+  canEdit(tokenName, tokenValue) {
+    if (this.cantEdit.includes(tokenName)) return false;
+    return this.cantEditWithValue.findIndex(token => token.name === tokenName &&
+      token.value === tokenValue) === -1;
   }
 }
diff --git a/app/assets/javascripts/boards/stores/boards_store.js b/app/assets/javascripts/boards/stores/boards_store.js
index ea82958e80d..798d7e0d147 100644
--- a/app/assets/javascripts/boards/stores/boards_store.js
+++ b/app/assets/javascripts/boards/stores/boards_store.js
@@ -14,16 +14,18 @@ gl.issueBoards.BoardsStore = {
   },
   state: {},
   detail: {
-    issue: {}
+    issue: {},
   },
   moving: {
     issue: {},
-    list: {}
+    list: {},
   },
   create () {
     this.state.lists = [];
     this.filter.path = getUrlParamsArray().join('&');
-    this.detail = { issue: {} };
+    this.detail = {
+      issue: {},
+    };
   },
   addList (listObj, defaultAvatar) {
     const list = new List(listObj, defaultAvatar);
diff --git a/app/assets/javascripts/clusters.js b/app/assets/javascripts/clusters.js
deleted file mode 100644
index c9fef94efea..00000000000
--- a/app/assets/javascripts/clusters.js
+++ /dev/null
@@ -1,123 +0,0 @@
-/* globals Flash */
-import Visibility from 'visibilityjs';
-import axios from 'axios';
-import setAxiosCsrfToken from './lib/utils/axios_utils';
-import Poll from './lib/utils/poll';
-import { s__ } from './locale';
-import initSettingsPanels from './settings_panels';
-import Flash from './flash';
-
-/**
- * Cluster page has 2 separate parts:
- *   Toggle button
- *
- * - Polling status while creating or scheduled
- * -- Update status area with the response result
- */
-
-class ClusterService {
-  constructor(options = {}) {
-    this.options = options;
-    setAxiosCsrfToken();
-  }
-  fetchData() {
-    return axios.get(this.options.endpoint);
-  }
-}
-
-export default class Clusters {
-  constructor() {
-    initSettingsPanels();
-
-    const dataset = document.querySelector('.js-edit-cluster-form').dataset;
-
-    this.state = {
-      statusPath: dataset.statusPath,
-      clusterStatus: dataset.clusterStatus,
-      clusterStatusReason: dataset.clusterStatusReason,
-      toggleStatus: dataset.toggleStatus,
-    };
-
-    this.service = new ClusterService({ endpoint: this.state.statusPath });
-    this.toggleButton = document.querySelector('.js-toggle-cluster');
-    this.toggleInput = document.querySelector('.js-toggle-input');
-    this.errorContainer = document.querySelector('.js-cluster-error');
-    this.successContainer = document.querySelector('.js-cluster-success');
-    this.creatingContainer = document.querySelector('.js-cluster-creating');
-    this.errorReasonContainer = this.errorContainer.querySelector('.js-error-reason');
-
-    this.toggleButton.addEventListener('click', this.toggle.bind(this));
-
-    if (this.state.clusterStatus !== 'created') {
-      this.updateContainer(this.state.clusterStatus, this.state.clusterStatusReason);
-    }
-
-    if (this.state.statusPath) {
-      this.initPolling();
-    }
-  }
-
-  toggle() {
-    this.toggleButton.classList.toggle('checked');
-    this.toggleInput.setAttribute('value', this.toggleButton.classList.contains('checked').toString());
-  }
-
-  initPolling() {
-    this.poll = new Poll({
-      resource: this.service,
-      method: 'fetchData',
-      successCallback: data => this.handleSuccess(data),
-      errorCallback: () => Clusters.handleError(),
-    });
-
-    if (!Visibility.hidden()) {
-      this.poll.makeRequest();
-    } else {
-      this.service.fetchData()
-        .then(data => this.handleSuccess(data))
-        .catch(() => Clusters.handleError());
-    }
-
-    Visibility.change(() => {
-      if (!Visibility.hidden()) {
-        this.poll.restart();
-      } else {
-        this.poll.stop();
-      }
-    });
-  }
-
-  static handleError() {
-    Flash(s__('ClusterIntegration|Something went wrong on our end.'));
-  }
-
-  handleSuccess(data) {
-    const { status, status_reason } = data.data;
-    this.updateContainer(status, status_reason);
-  }
-
-  hideAll() {
-    this.errorContainer.classList.add('hidden');
-    this.successContainer.classList.add('hidden');
-    this.creatingContainer.classList.add('hidden');
-  }
-
-  updateContainer(status, error) {
-    this.hideAll();
-    switch (status) {
-      case 'created':
-        this.successContainer.classList.remove('hidden');
-        break;
-      case 'errored':
-        this.errorContainer.classList.remove('hidden');
-        this.errorReasonContainer.textContent = error;
-        break;
-      case 'scheduled':
-      case 'creating':
-        this.creatingContainer.classList.remove('hidden');
-        break;
-      default:
-        this.hideAll();
-    }
-  }
-}
diff --git a/app/assets/javascripts/clusters/clusters_bundle.js b/app/assets/javascripts/clusters/clusters_bundle.js
new file mode 100644
index 00000000000..dc443475952
--- /dev/null
+++ b/app/assets/javascripts/clusters/clusters_bundle.js
@@ -0,0 +1,221 @@
+import Visibility from 'visibilityjs';
+import Vue from 'vue';
+import { s__, sprintf } from '../locale';
+import Flash from '../flash';
+import Poll from '../lib/utils/poll';
+import initSettingsPanels from '../settings_panels';
+import eventHub from './event_hub';
+import {
+  APPLICATION_INSTALLED,
+  REQUEST_LOADING,
+  REQUEST_SUCCESS,
+  REQUEST_FAILURE,
+} from './constants';
+import ClustersService from './services/clusters_service';
+import ClustersStore from './stores/clusters_store';
+import applications from './components/applications.vue';
+
+/**
+ * Cluster page has 2 separate parts:
+ * Toggle button and applications section
+ *
+ * - Polling status while creating or scheduled
+ * - Update status area with the response result
+ */
+
+export default class Clusters {
+  constructor() {
+    const {
+      statusPath,
+      installHelmPath,
+      installIngressPath,
+      installRunnerPath,
+      clusterStatus,
+      clusterStatusReason,
+      helpPath,
+    } = document.querySelector('.js-edit-cluster-form').dataset;
+
+    this.store = new ClustersStore();
+    this.store.setHelpPath(helpPath);
+    this.store.updateStatus(clusterStatus);
+    this.store.updateStatusReason(clusterStatusReason);
+    this.service = new ClustersService({
+      endpoint: statusPath,
+      installHelmEndpoint: installHelmPath,
+      installIngressEndpoint: installIngressPath,
+      installRunnerEndpoint: installRunnerPath,
+    });
+
+    this.toggle = this.toggle.bind(this);
+    this.installApplication = this.installApplication.bind(this);
+
+    this.toggleButton = document.querySelector('.js-toggle-cluster');
+    this.toggleInput = document.querySelector('.js-toggle-input');
+    this.errorContainer = document.querySelector('.js-cluster-error');
+    this.successContainer = document.querySelector('.js-cluster-success');
+    this.creatingContainer = document.querySelector('.js-cluster-creating');
+    this.errorReasonContainer = this.errorContainer.querySelector('.js-error-reason');
+    this.successApplicationContainer = document.querySelector('.js-cluster-application-notice');
+
+    initSettingsPanels();
+    this.initApplications();
+
+    if (this.store.state.status !== 'created') {
+      this.updateContainer(null, this.store.state.status, this.store.state.statusReason);
+    }
+
+    this.addListeners();
+    if (statusPath) {
+      this.initPolling();
+    }
+  }
+
+  initApplications() {
+    const store = this.store;
+    const el = document.querySelector('#js-cluster-applications');
+
+    this.applications = new Vue({
+      el,
+      components: {
+        applications,
+      },
+      data() {
+        return {
+          state: store.state,
+        };
+      },
+      render(createElement) {
+        return createElement('applications', {
+          props: {
+            applications: this.state.applications,
+            helpPath: this.state.helpPath,
+          },
+        });
+      },
+    });
+  }
+
+  addListeners() {
+    this.toggleButton.addEventListener('click', this.toggle);
+    eventHub.$on('installApplication', this.installApplication);
+  }
+
+  removeListeners() {
+    this.toggleButton.removeEventListener('click', this.toggle);
+    eventHub.$off('installApplication', this.installApplication);
+  }
+
+  initPolling() {
+    this.poll = new Poll({
+      resource: this.service,
+      method: 'fetchData',
+      successCallback: data => this.handleSuccess(data),
+      errorCallback: () => Clusters.handleError(),
+    });
+
+    if (!Visibility.hidden()) {
+      this.poll.makeRequest();
+    } else {
+      this.service.fetchData()
+        .then(data => this.handleSuccess(data))
+        .catch(() => Clusters.handleError());
+    }
+
+    Visibility.change(() => {
+      if (!Visibility.hidden() && !this.destroyed) {
+        this.poll.restart();
+      } else {
+        this.poll.stop();
+      }
+    });
+  }
+
+  static handleError() {
+    Flash(s__('ClusterIntegration|Something went wrong on our end.'));
+  }
+
+  handleSuccess(data) {
+    const prevStatus = this.store.state.status;
+    const prevApplicationMap = Object.assign({}, this.store.state.applications);
+
+    this.store.updateStateFromServer(data.data);
+
+    this.checkForNewInstalls(prevApplicationMap, this.store.state.applications);
+    this.updateContainer(prevStatus, this.store.state.status, this.store.state.statusReason);
+  }
+
+  toggle() {
+    this.toggleButton.classList.toggle('checked');
+    this.toggleInput.setAttribute('value', this.toggleButton.classList.contains('checked').toString());
+  }
+
+  hideAll() {
+    this.errorContainer.classList.add('hidden');
+    this.successContainer.classList.add('hidden');
+    this.creatingContainer.classList.add('hidden');
+  }
+
+  checkForNewInstalls(prevApplicationMap, newApplicationMap) {
+    const appTitles = Object.keys(newApplicationMap)
+      .filter(appId => newApplicationMap[appId].status === APPLICATION_INSTALLED &&
+        prevApplicationMap[appId].status !== APPLICATION_INSTALLED &&
+        prevApplicationMap[appId].status !== null)
+      .map(appId => newApplicationMap[appId].title);
+
+    if (appTitles.length > 0) {
+      const text = sprintf(s__('ClusterIntegration|%{appList} was successfully installed on your cluster'), {
+        appList: appTitles.join(', '),
+      });
+      Flash(text, 'notice', this.successApplicationContainer);
+    }
+  }
+
+  updateContainer(prevStatus, status, error) {
+    this.hideAll();
+
+    // We poll all the time but only want the `created` banner to show when newly created
+    if (this.store.state.status !== 'created' || prevStatus !== this.store.state.status) {
+      switch (status) {
+        case 'created':
+          this.successContainer.classList.remove('hidden');
+          break;
+        case 'errored':
+          this.errorContainer.classList.remove('hidden');
+          this.errorReasonContainer.textContent = error;
+          break;
+        case 'scheduled':
+        case 'creating':
+          this.creatingContainer.classList.remove('hidden');
+          break;
+        default:
+          this.hideAll();
+      }
+    }
+  }
+
+  installApplication(appId) {
+    this.store.updateAppProperty(appId, 'requestStatus', REQUEST_LOADING);
+    this.store.updateAppProperty(appId, 'requestReason', null);
+
+    this.service.installApplication(appId)
+      .then(() => {
+        this.store.updateAppProperty(appId, 'requestStatus', REQUEST_SUCCESS);
+      })
+      .catch(() => {
+        this.store.updateAppProperty(appId, 'requestStatus', REQUEST_FAILURE);
+        this.store.updateAppProperty(appId, 'requestReason', s__('ClusterIntegration|Request to begin installing failed'));
+      });
+  }
+
+  destroy() {
+    this.destroyed = true;
+
+    this.removeListeners();
+
+    if (this.poll) {
+      this.poll.stop();
+    }
+
+    this.applications.$destroy();
+  }
+}
diff --git a/app/assets/javascripts/clusters/components/application_row.vue b/app/assets/javascripts/clusters/components/application_row.vue
new file mode 100644
index 00000000000..872abf03ef1
--- /dev/null
+++ b/app/assets/javascripts/clusters/components/application_row.vue
@@ -0,0 +1,185 @@
+<script>
+import { s__, sprintf } from '../../locale';
+import eventHub from '../event_hub';
+import loadingButton from '../../vue_shared/components/loading_button.vue';
+import {
+  APPLICATION_NOT_INSTALLABLE,
+  APPLICATION_SCHEDULED,
+  APPLICATION_INSTALLABLE,
+  APPLICATION_INSTALLING,
+  APPLICATION_INSTALLED,
+  APPLICATION_ERROR,
+  REQUEST_LOADING,
+  REQUEST_SUCCESS,
+  REQUEST_FAILURE,
+} from '../constants';
+
+export default {
+  props: {
+    id: {
+      type: String,
+      required: true,
+    },
+    title: {
+      type: String,
+      required: true,
+    },
+    titleLink: {
+      type: String,
+      required: false,
+    },
+    description: {
+      type: String,
+      required: true,
+    },
+    status: {
+      type: String,
+      required: false,
+    },
+    statusReason: {
+      type: String,
+      required: false,
+    },
+    requestStatus: {
+      type: String,
+      required: false,
+    },
+    requestReason: {
+      type: String,
+      required: false,
+    },
+  },
+  components: {
+    loadingButton,
+  },
+  computed: {
+    rowJsClass() {
+      return `js-cluster-application-row-${this.id}`;
+    },
+    installButtonLoading() {
+      return !this.status ||
+        this.status === APPLICATION_SCHEDULED ||
+        this.status === APPLICATION_INSTALLING ||
+        this.requestStatus === REQUEST_LOADING;
+    },
+    installButtonDisabled() {
+      // Avoid the potential for the real-time data to say APPLICATION_INSTALLABLE but
+      // we already made a request to install and are just waiting for the real-time
+      // to sync up.
+      return (this.status !== APPLICATION_INSTALLABLE && this.status !== APPLICATION_ERROR) ||
+        this.requestStatus === REQUEST_LOADING ||
+        this.requestStatus === REQUEST_SUCCESS;
+    },
+    installButtonLabel() {
+      let label;
+      if (
+        this.status === APPLICATION_NOT_INSTALLABLE ||
+        this.status === APPLICATION_INSTALLABLE ||
+        this.status === APPLICATION_ERROR
+      ) {
+        label = s__('ClusterIntegration|Install');
+      } else if (this.status === APPLICATION_SCHEDULED || this.status === APPLICATION_INSTALLING) {
+        label = s__('ClusterIntegration|Installing');
+      } else if (this.status === APPLICATION_INSTALLED) {
+        label = s__('ClusterIntegration|Installed');
+      }
+
+      return label;
+    },
+    hasError() {
+      return this.status === APPLICATION_ERROR || this.requestStatus === REQUEST_FAILURE;
+    },
+    generalErrorDescription() {
+      return sprintf(
+        s__('ClusterIntegration|Something went wrong while installing %{title}'), {
+          title: this.title,
+        },
+      );
+    },
+  },
+  methods: {
+    installClicked() {
+      eventHub.$emit('installApplication', this.id);
+    },
+  },
+};
+</script>
+
+<template>
+  <div
+    class="gl-responsive-table-row gl-responsive-table-row-col-span"
+    :class="rowJsClass"
+  >
+    <div
+      class="gl-responsive-table-row-layout"
+      role="row"
+    >
+      <a
+        v-if="titleLink"
+        :href="titleLink"
+        target="blank"
+        rel="noopener noreferrer"
+        role="gridcell"
+        class="table-section section-15 section-align-top js-cluster-application-title"
+      >
+        {{ title }}
+      </a>
+      <span
+        v-else
+        class="table-section section-15 section-align-top js-cluster-application-title"
+      >
+        {{ title }}
+      </span>
+      <div
+        class="table-section section-wrap"
+        role="gridcell"
+      >
+        <div v-html="description"></div>
+      </div>
+      <div
+        class="table-section table-button-footer section-15 section-align-top"
+        role="gridcell"
+      >
+        <div class="btn-group table-action-buttons">
+          <loading-button
+            class="js-cluster-application-install-button"
+            :loading="installButtonLoading"
+            :disabled="installButtonDisabled"
+            :label="installButtonLabel"
+            @click="installClicked"
+          />
+        </div>
+      </div>
+    </div>
+    <div
+      v-if="hasError"
+      class="gl-responsive-table-row-layout"
+      role="row"
+    >
+      <div
+        class="alert alert-danger alert-block append-bottom-0 table-section section-100"
+        role="gridcell"
+      >
+        <div>
+          <p class="js-cluster-application-general-error-message">
+            {{ generalErrorDescription }}
+          </p>
+          <ul v-if="statusReason || requestReason">
+            <li
+              v-if="statusReason"
+              class="js-cluster-application-status-error-message"
+            >
+              {{ statusReason }}
+            </li>
+            <li
+              v-if="requestReason"
+              class="js-cluster-application-request-error-message"
+            >
+              {{ requestReason }}
+            </li>
+          </ul>
+        </div>
+      </div>
+    </div>
+  </div>
+</template>
diff --git a/app/assets/javascripts/clusters/components/applications.vue b/app/assets/javascripts/clusters/components/applications.vue
new file mode 100644
index 00000000000..e5ae439d26e
--- /dev/null
+++ b/app/assets/javascripts/clusters/components/applications.vue
@@ -0,0 +1,114 @@
+<script>
+import _ from 'underscore';
+import { s__, sprintf } from '../../locale';
+import applicationRow from './application_row.vue';
+
+export default {
+  props: {
+    applications: {
+      type: Object,
+      required: false,
+      default: () => ({}),
+    },
+    helpPath: {
+      type: String,
+      required: false,
+    },
+  },
+  components: {
+    applicationRow,
+  },
+  computed: {
+    generalApplicationDescription() {
+      return sprintf(
+        _.escape(s__('ClusterIntegration|Install applications on your cluster. Read more about %{helpLink}')), {
+          helpLink: `<a href="${this.helpPath}">
+            ${_.escape(s__('ClusterIntegration|installing applications'))}
+          </a>`,
+        },
+        false,
+      );
+    },
+    helmTillerDescription() {
+      return _.escape(s__(
+        `ClusterIntegration|Helm streamlines installing and managing Kubernets applications.
+        Tiller runs inside of your Kubernetes Cluster, and manages
+        releases of your charts.`,
+      ));
+    },
+    ingressDescription() {
+      const descriptionParagraph = _.escape(s__(
+        `ClusterIntegration|Ingress gives you a way to route requests to services based on the
+        request host or path, centralizing a number of services into a single entrypoint.`,
+      ));
+
+      const extraCostParagraph = sprintf(
+        _.escape(s__('ClusterIntegration|%{boldNotice} This will add some extra resources like a load balancer, which incur additional costs. See %{pricingLink}')), {
+          boldNotice: `<strong>${_.escape(s__('ClusterIntegration|Note:'))}</strong>`,
+          pricingLink: `<a href="https://cloud.google.com/compute/pricing#lb" target="_blank" rel="noopener noreferrer">
+            ${_.escape(s__('ClusterIntegration|GKE pricing'))}
+          </a>`,
+        },
+        false,
+      );
+
+      return `
+        <p>
+          ${descriptionParagraph}
+        </p>
+        <p class="append-bottom-0">
+          ${extraCostParagraph}
+        </p>
+      `;
+    },
+    gitlabRunnerDescription() {
+      return _.escape(s__(
+        `ClusterIntegration|GitLab Runner is the open source project that is used to run your jobs
+        and send the results back to GitLab.`,
+      ));
+    },
+  },
+};
+</script>
+
+<template>
+  <section class="settings no-animate expanded">
+    <div class="settings-header">
+      <h4>
+        {{ s__('ClusterIntegration|Applications') }}
+      </h4>
+      <p
+        class="append-bottom-0"
+        v-html="generalApplicationDescription"
+      >
+      </p>
+    </div>
+
+    <div class="settings-content">
+      <div class="append-bottom-20">
+        <application-row
+          id="helm"
+          :title="applications.helm.title"
+          title-link="https://docs.helm.sh/"
+          :description="helmTillerDescription"
+          :status="applications.helm.status"
+          :status-reason="applications.helm.statusReason"
+          :request-status="applications.helm.requestStatus"
+          :request-reason="applications.helm.requestReason"
+        />
+        <application-row
+         id="ingress"
+         :title="applications.ingress.title"
+         title-link="https://kubernetes.io/docs/concepts/services-networking/ingress/"
+         :description="ingressDescription"
+         :status="applications.ingress.status"
+         :status-reason="applications.ingress.statusReason"
+         :request-status="applications.ingress.requestStatus"
+         :request-reason="applications.ingress.requestReason"
+       />
+        <!-- NOTE: Don't forget to update `clusters.scss` min-height for this block and uncomment `application_spec` tests -->
+        <!-- Add GitLab Runner row, all other plumbing is complete -->
+      </div>
+    </div>
+  </section>
+</template>
diff --git a/app/assets/javascripts/clusters/constants.js b/app/assets/javascripts/clusters/constants.js
new file mode 100644
index 00000000000..93223aefff8
--- /dev/null
+++ b/app/assets/javascripts/clusters/constants.js
@@ -0,0 +1,12 @@
+// These need to match what is returned from the server
+export const APPLICATION_NOT_INSTALLABLE = 'not_installable';
+export const APPLICATION_INSTALLABLE = 'installable';
+export const APPLICATION_SCHEDULED = 'scheduled';
+export const APPLICATION_INSTALLING = 'installing';
+export const APPLICATION_INSTALLED = 'installed';
+export const APPLICATION_ERROR = 'errored';
+
+// These are only used client-side
+export const REQUEST_LOADING = 'request-loading';
+export const REQUEST_SUCCESS = 'request-success';
+export const REQUEST_FAILURE = 'request-failure';
diff --git a/app/assets/javascripts/clusters/event_hub.js b/app/assets/javascripts/clusters/event_hub.js
new file mode 100644
index 00000000000..0948c2e5352
--- /dev/null
+++ b/app/assets/javascripts/clusters/event_hub.js
@@ -0,0 +1,3 @@
+import Vue from 'vue';
+
+export default new Vue();
diff --git a/app/assets/javascripts/clusters/services/clusters_service.js b/app/assets/javascripts/clusters/services/clusters_service.js
new file mode 100644
index 00000000000..0ac8e68187d
--- /dev/null
+++ b/app/assets/javascripts/clusters/services/clusters_service.js
@@ -0,0 +1,24 @@
+import axios from 'axios';
+import setAxiosCsrfToken from '../../lib/utils/axios_utils';
+
+export default class ClusterService {
+  constructor(options = {}) {
+    setAxiosCsrfToken();
+
+    this.options = options;
+    this.appInstallEndpointMap = {
+      helm: this.options.installHelmEndpoint,
+      ingress: this.options.installIngressEndpoint,
+      runner: this.options.installRunnerEndpoint,
+    };
+  }
+
+  fetchData() {
+    return axios.get(this.options.endpoint);
+  }
+
+  installApplication(appId) {
+    const endpoint = this.appInstallEndpointMap[appId];
+    return axios.post(endpoint);
+  }
+}
diff --git a/app/assets/javascripts/clusters/stores/clusters_store.js b/app/assets/javascripts/clusters/stores/clusters_store.js
new file mode 100644
index 00000000000..e731cdc3042
--- /dev/null
+++ b/app/assets/javascripts/clusters/stores/clusters_store.js
@@ -0,0 +1,68 @@
+import { s__ } from '../../locale';
+
+export default class ClusterStore {
+  constructor() {
+    this.state = {
+      helpPath: null,
+      status: null,
+      statusReason: null,
+      applications: {
+        helm: {
+          title: s__('ClusterIntegration|Helm Tiller'),
+          status: null,
+          statusReason: null,
+          requestStatus: null,
+          requestReason: null,
+        },
+        ingress: {
+          title: s__('ClusterIntegration|Ingress'),
+          status: null,
+          statusReason: null,
+          requestStatus: null,
+          requestReason: null,
+        },
+        runner: {
+          title: s__('ClusterIntegration|GitLab Runner'),
+          status: null,
+          statusReason: null,
+          requestStatus: null,
+          requestReason: null,
+        },
+      },
+    };
+  }
+
+  setHelpPath(helpPath) {
+    this.state.helpPath = helpPath;
+  }
+
+  updateStatus(status) {
+    this.state.status = status;
+  }
+
+  updateStatusReason(reason) {
+    this.state.statusReason = reason;
+  }
+
+  updateAppProperty(appId, prop, value) {
+    this.state.applications[appId][prop] = value;
+  }
+
+  updateStateFromServer(serverState = {}) {
+    this.state.status = serverState.status;
+    this.state.statusReason = serverState.status_reason;
+    serverState.applications.forEach((serverAppEntry) => {
+      const {
+        name: appId,
+        status,
+        status_reason: statusReason,
+      } = serverAppEntry;
+
+      this.state.applications[appId] = {
+        ...(this.state.applications[appId] || {}),
+        status,
+        statusReason,
+      };
+    });
+  }
+}
diff --git a/app/assets/javascripts/commits.js b/app/assets/javascripts/commits.js
index ae6b8902032..9b952ea7b60 100644
--- a/app/assets/javascripts/commits.js
+++ b/app/assets/javascripts/commits.js
@@ -3,6 +3,8 @@
   prefer-template, object-shorthand, prefer-arrow-callback */
 /* global Pager */
 
+import { pluralize } from './lib/utils/text_utility';
+
 export default (function () {
   const CommitsList = {};
 
@@ -86,7 +88,7 @@ export default (function () {
 
       // Update commits count in the previous commits header.
       commitsCount += Number($(processedData).nextUntil('li.js-commit-header').first().find('li.commit').length);
-      $commitsHeadersLast.find('span.commits-count').text(`${commitsCount} ${gl.text.pluralize('commit', commitsCount)}`);
+      $commitsHeadersLast.find('span.commits-count').text(`${commitsCount} ${pluralize('commit', commitsCount)}`);
     }
 
     gl.utils.localTimeAgo($processedData.find('.js-timeago'));
diff --git a/app/assets/javascripts/create_label.js b/app/assets/javascripts/create_label.js
index 3bed0678350..9a4c9bfcc80 100644
--- a/app/assets/javascripts/create_label.js
+++ b/app/assets/javascripts/create_label.js
@@ -1,5 +1,6 @@
 /* eslint-disable func-names, prefer-arrow-callback */
 import Api from './api';
+import { humanize } from './lib/utils/text_utility';
 
 export default class CreateLabelDropdown {
   constructor($el, namespacePath, projectPath) {
@@ -107,7 +108,7 @@ export default class CreateLabelDropdown {
           errors = label.message;
         } else {
           errors = Object.keys(label.message).map(key =>
-            `${gl.text.humanize(key)} ${label.message[key].join(', ')}`,
+            `${humanize(key)} ${label.message[key].join(', ')}`,
           ).join('<br/>');
         }
 
diff --git a/app/assets/javascripts/cycle_analytics/cycle_analytics_store.js b/app/assets/javascripts/cycle_analytics/cycle_analytics_store.js
index 8bf9ae17de0..a8cd8c20f8f 100644
--- a/app/assets/javascripts/cycle_analytics/cycle_analytics_store.js
+++ b/app/assets/javascripts/cycle_analytics/cycle_analytics_store.js
@@ -1,7 +1,7 @@
 /* eslint-disable no-param-reassign */
 
 import { __ } from '../locale';
-import '../lib/utils/text_utility';
+import { dasherize } from '../lib/utils/text_utility';
 import DEFAULT_EVENT_OBJECTS from './default_event_objects';
 
 const EMPTY_STAGE_TEXTS = {
@@ -36,7 +36,7 @@ export default {
     });
 
     newData.stages.forEach((item) => {
-      const stageSlug = gl.text.dasherize(item.name.toLowerCase());
+      const stageSlug = dasherize(item.name.toLowerCase());
       item.active = false;
       item.isUserAllowed = data.permissions[stageSlug];
       item.emptyStageText = EMPTY_STAGE_TEXTS[stageSlug];
diff --git a/app/assets/javascripts/dispatcher.js b/app/assets/javascripts/dispatcher.js
index 760fb0cdf67..d716218d9a4 100644
--- a/app/assets/javascripts/dispatcher.js
+++ b/app/assets/javascripts/dispatcher.js
@@ -1,4 +1,5 @@
 /* eslint-disable func-names, space-before-function-paren, no-var, prefer-arrow-callback, wrap-iife, no-shadow, consistent-return, one-var, one-var-declaration-per-line, camelcase, default-case, no-new, quotes, no-duplicate-case, no-case-declarations, no-fallthrough, max-len */
+import { s__ } from './locale';
 /* global ProjectSelect */
 import IssuableIndex from './issuable_index';
 /* global Milestone */
@@ -19,19 +20,20 @@ import groupsSelect from './groups_select';
 import NamespaceSelect from './namespace_select';
 /* global NewCommitForm */
 /* global NewBranchForm */
-/* global Project */
-/* global ProjectAvatar */
+import Project from './project';
+import projectAvatar from './project_avatar';
 /* global MergeRequest */
 /* global Compare */
 /* global CompareAutocomplete */
 /* global ProjectFindFile */
 /* global ProjectNew */
 /* global ProjectShow */
-/* global ProjectImport */
+import projectImport from './project_import';
 import Labels from './labels';
 import LabelManager from './label_manager';
 /* global Sidebar */
 
+import Flash from './flash';
 import CommitsList from './commits';
 import Issue from './issue';
 import BindInOut from './behaviors/bind_in_out';
@@ -376,7 +378,7 @@ import Diff from './diff';
           initSettingsPanels();
           break;
         case 'projects:imports:show':
-          new ProjectImport();
+          projectImport();
           break;
         case 'projects:pipelines:new':
           new NewBranchForm($('.js-new-pipeline-form'));
@@ -543,9 +545,12 @@ import Diff from './diff';
           new DueDateSelectors();
           break;
         case 'projects:clusters:show':
-          import(/* webpackChunkName: "clusters" */ './clusters')
+          import(/* webpackChunkName: "clusters" */ './clusters/clusters_bundle')
             .then(cluster => new cluster.default()) // eslint-disable-line new-cap
-            .catch(() => {});
+            .catch((err) => {
+              Flash(s__('ClusterIntegration|Problem setting up the cluster JavaScript'));
+              throw err;
+            });
           break;
       }
       switch (path[0]) {
@@ -599,7 +604,7 @@ import Diff from './diff';
           break;
         case 'projects':
           new Project();
-          new ProjectAvatar();
+          projectAvatar();
           switch (path[1]) {
             case 'compare':
               new CompareAutocomplete();
diff --git a/app/assets/javascripts/emoji/support/is_emoji_unicode_supported.js b/app/assets/javascripts/emoji/support/is_emoji_unicode_supported.js
index 3fd23efa9f8..e9defb62cf8 100644
--- a/app/assets/javascripts/emoji/support/is_emoji_unicode_supported.js
+++ b/app/assets/javascripts/emoji/support/is_emoji_unicode_supported.js
@@ -7,6 +7,17 @@ function isFlagEmoji(emojiUnicode) {
   return emojiUnicode.length === 4 && cp >= flagACodePoint && cp <= flagZCodePoint;
 }
 
+// Tested on mac OS 10.12.6 and Windows 10 FCU, it renders as two separate characters
+const baseFlagCodePoint = 127987; // parseInt('1F3F3', 16)
+const rainbowCodePoint = 127752; // parseInt('1F308', 16)
+function isRainbowFlagEmoji(emojiUnicode) {
+  const characters = Array.from(emojiUnicode);
+  // Length 4 because flags are made of 2 characters which are surrogate pairs
+  return emojiUnicode.length === 4 &&
+    characters[0].codePointAt(0) === baseFlagCodePoint &&
+    characters[1].codePointAt(0) === rainbowCodePoint;
+}
+
 // Chrome <57 renders keycaps oddly
 // See https://bugs.chromium.org/p/chromium/issues/detail?id=632294
 // Same issue on Windows also fixed in Chrome 57, http://i.imgur.com/rQF7woO.png
@@ -57,9 +68,11 @@ function isPersonZwjEmoji(emojiUnicode) {
 // in `isEmojiUnicodeSupported` logic
 function checkFlagEmojiSupport(unicodeSupportMap, emojiUnicode) {
   const isFlagResult = isFlagEmoji(emojiUnicode);
+  const isRainbowFlagResult = isRainbowFlagEmoji(emojiUnicode);
   return (
     (unicodeSupportMap.flag && isFlagResult) ||
-    !isFlagResult
+    (unicodeSupportMap.rainbowFlag && isRainbowFlagResult) ||
+    (!isFlagResult && !isRainbowFlagResult)
   );
 }
 
@@ -113,6 +126,7 @@ function isEmojiUnicodeSupported(unicodeSupportMap = {}, emojiUnicode, unicodeVe
 export {
   isEmojiUnicodeSupported as default,
   isFlagEmoji,
+  isRainbowFlagEmoji,
   isKeycapEmoji,
   isSkinToneComboEmoji,
   isHorceRacingSkinToneComboEmoji,
diff --git a/app/assets/javascripts/emoji/support/unicode_support_map.js b/app/assets/javascripts/emoji/support/unicode_support_map.js
index 755381c2f95..c18d07dad43 100644
--- a/app/assets/javascripts/emoji/support/unicode_support_map.js
+++ b/app/assets/javascripts/emoji/support/unicode_support_map.js
@@ -1,5 +1,7 @@
 import AccessorUtilities from '../../lib/utils/accessor';
 
+const GL_EMOJI_VERSION = '0.2.0';
+
 const unicodeSupportTestMap = {
   // man, student (emojione does not have any of these yet), http://emojipedia.org/emoji-zwj-sequences/
   // occupationZwj: '\u{1F468}\u{200D}\u{1F393}',
@@ -13,6 +15,7 @@ const unicodeSupportTestMap = {
   horseRacing: '\u{1F3C7}\u{1F3FF}',
   // US flag, http://emojipedia.org/flags/
   flag: '\u{1F1FA}\u{1F1F8}',
+  rainbowFlag: '\u{1F3F3}\u{1F308}',
   // http://emojipedia.org/modifiers/
   skinToneModifier: [
     // spy_tone5
@@ -141,23 +144,31 @@ function generateUnicodeSupportMap(testMap) {
 }
 
 export default function getUnicodeSupportMap() {
-  let unicodeSupportMap;
-  let userAgentFromCache;
-
   const isLocalStorageAvailable = AccessorUtilities.isLocalStorageAccessSafe();
 
-  if (isLocalStorageAvailable) userAgentFromCache = window.localStorage.getItem('gl-emoji-user-agent');
+  let glEmojiVersionFromCache;
+  let userAgentFromCache;
+  if (isLocalStorageAvailable) {
+    glEmojiVersionFromCache = window.localStorage.getItem('gl-emoji-version');
+    userAgentFromCache = window.localStorage.getItem('gl-emoji-user-agent');
+  }
 
+  let unicodeSupportMap;
   try {
     unicodeSupportMap = JSON.parse(window.localStorage.getItem('gl-emoji-unicode-support-map'));
   } catch (err) {
     // swallow
   }
 
-  if (!unicodeSupportMap || userAgentFromCache !== navigator.userAgent) {
+  if (
+    !unicodeSupportMap ||
+    glEmojiVersionFromCache !== GL_EMOJI_VERSION ||
+    userAgentFromCache !== navigator.userAgent
+  ) {
     unicodeSupportMap = generateUnicodeSupportMap(unicodeSupportTestMap);
 
     if (isLocalStorageAvailable) {
+      window.localStorage.setItem('gl-emoji-version', GL_EMOJI_VERSION);
       window.localStorage.setItem('gl-emoji-user-agent', navigator.userAgent);
       window.localStorage.setItem('gl-emoji-unicode-support-map', JSON.stringify(unicodeSupportMap));
     }
diff --git a/app/assets/javascripts/environments/components/environment_item.vue b/app/assets/javascripts/environments/components/environment_item.vue
index fc0308b81ba..9d25f806c0d 100644
--- a/app/assets/javascripts/environments/components/environment_item.vue
+++ b/app/assets/javascripts/environments/components/environment_item.vue
@@ -2,7 +2,7 @@
 import Timeago from 'timeago.js';
 import _ from 'underscore';
 import userAvatarLink from '../../vue_shared/components/user_avatar/user_avatar_link.vue';
-import '../../lib/utils/text_utility';
+import { humanize } from '../../lib/utils/text_utility';
 import ActionsComponent from './environment_actions.vue';
 import ExternalUrlComponent from './environment_external_url.vue';
 import StopComponent from './environment_stop.vue';
@@ -139,7 +139,7 @@ export default {
       if (this.hasManualActions) {
         return this.model.last_deployment.manual_actions.map((action) => {
           const parsedAction = {
-            name: gl.text.humanize(action.name),
+            name: humanize(action.name),
             play_path: action.play_path,
             playable: action.playable,
           };
diff --git a/app/assets/javascripts/filtered_search/dropdown_utils.js b/app/assets/javascripts/filtered_search/dropdown_utils.js
index 8d711e3213c..cf8a9b0402b 100644
--- a/app/assets/javascripts/filtered_search/dropdown_utils.js
+++ b/app/assets/javascripts/filtered_search/dropdown_utils.js
@@ -147,6 +147,16 @@ class DropdownUtils {
     return dataValue !== null;
   }
 
+  static getVisualTokenValues(visualToken) {
+    const tokenName = visualToken && visualToken.querySelector('.name').textContent.trim();
+    let tokenValue = visualToken && visualToken.querySelector('.value') && visualToken.querySelector('.value').textContent.trim();
+    if (tokenName === 'label' && tokenValue) {
+      // remove leading symbol and wrapping quotes
+      tokenValue = tokenValue.replace(/^~("|')?(.*)/, '$2').replace(/("|')$/, '');
+    }
+    return { tokenName, tokenValue };
+  }
+
   // Determines the full search query (visual tokens + input)
   static getSearchQuery(untilInput = false) {
     const container = FilteredSearchContainer.container;
diff --git a/app/assets/javascripts/filtered_search/filtered_search_manager.js b/app/assets/javascripts/filtered_search/filtered_search_manager.js
index 7b233842d5a..69c57f923b6 100644
--- a/app/assets/javascripts/filtered_search/filtered_search_manager.js
+++ b/app/assets/javascripts/filtered_search/filtered_search_manager.js
@@ -185,8 +185,8 @@ class FilteredSearchManager {
     if (e.keyCode === 8 || e.keyCode === 46) {
       const { lastVisualToken } = gl.FilteredSearchVisualTokens.getLastVisualTokenBeforeInput();
 
-      const sanitizedTokenName = lastVisualToken && lastVisualToken.querySelector('.name').textContent.trim();
-      const canEdit = sanitizedTokenName && this.canEdit && this.canEdit(sanitizedTokenName);
+      const { tokenName, tokenValue } = gl.DropdownUtils.getVisualTokenValues(lastVisualToken);
+      const canEdit = tokenName && this.canEdit && this.canEdit(tokenName, tokenValue);
       if (this.filteredSearchInput.value === '' && lastVisualToken && canEdit) {
         this.filteredSearchInput.value = gl.FilteredSearchVisualTokens.getLastTokenPartial();
         gl.FilteredSearchVisualTokens.removeLastTokenPartial();
@@ -336,8 +336,8 @@ class FilteredSearchManager {
       let canClearToken = t.classList.contains('js-visual-token');
 
       if (canClearToken) {
-        const tokenKey = t.querySelector('.name').textContent.trim();
-        canClearToken = this.canEdit && this.canEdit(tokenKey);
+        const { tokenName, tokenValue } = gl.DropdownUtils.getVisualTokenValues(t);
+        canClearToken = this.canEdit && this.canEdit(tokenName, tokenValue);
       }
 
       if (canClearToken) {
@@ -469,7 +469,7 @@ class FilteredSearchManager {
           }
 
           hasFilteredSearch = true;
-          const canEdit = this.canEdit && this.canEdit(sanitizedKey);
+          const canEdit = this.canEdit && this.canEdit(sanitizedKey, sanitizedValue);
           gl.FilteredSearchVisualTokens.addFilterVisualToken(
             sanitizedKey,
             `${symbol}${quotationsToUse}${sanitizedValue}${quotationsToUse}`,
diff --git a/app/assets/javascripts/filtered_search/filtered_search_visual_tokens.js b/app/assets/javascripts/filtered_search/filtered_search_visual_tokens.js
index d2f92929b8a..6139e81fe6d 100644
--- a/app/assets/javascripts/filtered_search/filtered_search_visual_tokens.js
+++ b/app/assets/javascripts/filtered_search/filtered_search_visual_tokens.js
@@ -38,21 +38,14 @@ class FilteredSearchVisualTokens {
   }
 
   static createVisualTokenElementHTML(canEdit = true) {
-    let removeTokenMarkup = '';
-    if (canEdit) {
-      removeTokenMarkup = `
-        <div class="remove-token" role="button">
-          <i class="fa fa-close"></i>
-        </div>
-      `;
-    }
-
     return `
-      <div class="selectable" role="button">
+      <div class="${canEdit ? 'selectable' : 'hidden'}" role="button">
         <div class="name"></div>
         <div class="value-container">
           <div class="value"></div>
-          ${removeTokenMarkup}
+          <div class="remove-token" role="button">
+            <i class="fa fa-close"></i>
+          </div>
         </div>
       </div>
     `;
diff --git a/app/assets/javascripts/gfm_auto_complete.js b/app/assets/javascripts/gfm_auto_complete.js
index 5c624b79d45..a642464c920 100644
--- a/app/assets/javascripts/gfm_auto_complete.js
+++ b/app/assets/javascripts/gfm_auto_complete.js
@@ -338,7 +338,8 @@ class GfmAutoComplete {
         let resultantValue = value;
         if (value && !this.setting.skipSpecialCharacterTest) {
           const withoutAt = value.substring(1);
-          if (withoutAt && /[^\w\d]/.test(withoutAt)) {
+          const regex = value.charAt() === '~' ? /\W|^\d+$/ : /\W/;
+          if (withoutAt && regex.test(withoutAt)) {
             resultantValue = `${value.charAt()}"${withoutAt}"`;
           }
         }
diff --git a/app/assets/javascripts/gl_dropdown.js b/app/assets/javascripts/gl_dropdown.js
index c4202f92443..4e7a6e54f90 100644
--- a/app/assets/javascripts/gl_dropdown.js
+++ b/app/assets/javascripts/gl_dropdown.js
@@ -331,7 +331,7 @@ GitLabDropdown = (function() {
             if (_this.dropdown.find('.dropdown-toggle-page').length) {
               selector = ".dropdown-page-one " + selector;
             }
-            return $(selector);
+            return $(selector, this.instance.dropdown);
           };
         })(this),
         data: (function(_this) {
diff --git a/app/assets/javascripts/gl_form.js b/app/assets/javascripts/gl_form.js
index 48cd43d3348..d0f9e6af0f8 100644
--- a/app/assets/javascripts/gl_form.js
+++ b/app/assets/javascripts/gl_form.js
@@ -2,6 +2,7 @@
 
 import GfmAutoComplete from './gfm_auto_complete';
 import dropzoneInput from './dropzone_input';
+import textUtils from './lib/utils/text_markdown';
 
 export default class GLForm {
   constructor(form, enableGFM = false) {
@@ -46,7 +47,7 @@ export default class GLForm {
     }
     // form and textarea event listeners
     this.addEventListeners();
-    gl.text.init(this.form);
+    textUtils.init(this.form);
     // hide discard button
     this.form.find('.js-note-discard').hide();
     this.form.show();
@@ -85,7 +86,7 @@ export default class GLForm {
   clearEventListeners() {
     this.textarea.off('focus');
     this.textarea.off('blur');
-    gl.text.removeListeners(this.form);
+    textUtils.removeListeners(this.form);
   }
 
   addEventListeners() {
diff --git a/app/assets/javascripts/issue.js b/app/assets/javascripts/issue.js
index acd5730cf3c..7de07e9403d 100644
--- a/app/assets/javascripts/issue.js
+++ b/app/assets/javascripts/issue.js
@@ -1,6 +1,6 @@
 /* eslint-disable func-names, space-before-function-paren, no-var, prefer-rest-params, wrap-iife, one-var, no-underscore-dangle, one-var-declaration-per-line, object-shorthand, no-unused-vars, no-new, comma-dangle, consistent-return, quotes, dot-notation, quote-props, prefer-arrow-callback, max-len */
 import 'vendor/jquery.waitforimages';
-import '~/lib/utils/text_utility';
+import { addDelimiter } from './lib/utils/text_utility';
 import Flash from './flash';
 import TaskList from './task_list';
 import CreateMergeRequestDropdown from './create_merge_request_dropdown';
@@ -73,7 +73,7 @@ export default class Issue {
 
           let numProjectIssues = Number(projectIssuesCounter.first().text().trim().replace(/[^\d]/, ''));
           numProjectIssues = isClosed ? numProjectIssues - 1 : numProjectIssues + 1;
-          projectIssuesCounter.text(gl.text.addDelimiter(numProjectIssues));
+          projectIssuesCounter.text(addDelimiter(numProjectIssues));
 
           if (this.createMergeRequestDropdown) {
             if (isClosed) {
diff --git a/app/assets/javascripts/issue_show/components/app.vue b/app/assets/javascripts/issue_show/components/app.vue
index d1aa83ea57f..e8ac8d3b5bb 100644
--- a/app/assets/javascripts/issue_show/components/app.vue
+++ b/app/assets/javascripts/issue_show/components/app.vue
@@ -29,6 +29,11 @@ export default {
       required: false,
       default: false,
     },
+    showDeleteButton: {
+      type: Boolean,
+      required: false,
+      default: true,
+    },
     issuableRef: {
       type: String,
       required: true,
@@ -92,6 +97,11 @@ export default {
       type: String,
       required: true,
     },
+    issuableType: {
+      type: String,
+      required: false,
+      default: 'issue',
+    },
   },
   data() {
     const store = new Store({
@@ -157,21 +167,21 @@ export default {
         })
         .catch(() => {
           eventHub.$emit('close.form');
-          window.Flash('Error updating issue');
+          window.Flash(`Error updating ${this.issuableType}`);
         });
     },
     deleteIssuable() {
       this.service.deleteIssuable()
         .then(res => res.json())
         .then((data) => {
-          // Stop the poll so we don't get 404's with the issue not existing
+          // Stop the poll so we don't get 404's with the issuable not existing
           this.poll.stop();
 
           gl.utils.visitUrl(data.web_url);
         })
         .catch(() => {
           eventHub.$emit('close.form');
-          window.Flash('Error deleting issue');
+          window.Flash(`Error deleting ${this.issuableType}`);
         });
     },
   },
@@ -223,6 +233,7 @@ export default {
       :markdown-preview-path="markdownPreviewPath"
       :project-path="projectPath"
       :project-namespace="projectNamespace"
+      :show-delete-button="showDeleteButton"
     />
     <div v-else>
       <title-component
diff --git a/app/assets/javascripts/issue_show/components/edit_actions.vue b/app/assets/javascripts/issue_show/components/edit_actions.vue
index 8c81575fe6f..a539506bce2 100644
--- a/app/assets/javascripts/issue_show/components/edit_actions.vue
+++ b/app/assets/javascripts/issue_show/components/edit_actions.vue
@@ -13,6 +13,11 @@
         type: Object,
         required: true,
       },
+      showDeleteButton: {
+        type: Boolean,
+        required: false,
+        default: true,
+      },
     },
     data() {
       return {
@@ -23,6 +28,9 @@
       isSubmitEnabled() {
         return this.formState.title.trim() !== '';
       },
+      shouldShowDeleteButton() {
+        return this.canDestroy && this.showDeleteButton;
+      },
     },
     methods: {
       closeForm() {
@@ -62,7 +70,7 @@
       Cancel
     </button>
     <button
-      v-if="canDestroy"
+      v-if="shouldShowDeleteButton"
       class="btn btn-danger pull-right append-right-default"
       :class="{ disabled: deleteLoading }"
       type="button"
diff --git a/app/assets/javascripts/issue_show/components/form.vue b/app/assets/javascripts/issue_show/components/form.vue
index 28bf6c67ea5..8bb5c86d567 100644
--- a/app/assets/javascripts/issue_show/components/form.vue
+++ b/app/assets/javascripts/issue_show/components/form.vue
@@ -36,6 +36,11 @@
         type: String,
         required: true,
       },
+      showDeleteButton: {
+        type: Boolean,
+        required: false,
+        default: true,
+      },
     },
     components: {
       lockedWarning,
@@ -81,6 +86,7 @@
       :markdown-docs-path="markdownDocsPath" />
     <edit-actions
       :form-state="formState"
-      :can-destroy="canDestroy" />
+      :can-destroy="canDestroy"
+      :show-delete-button="showDeleteButton" />
   </form>
 </template>
diff --git a/app/assets/javascripts/job.js b/app/assets/javascripts/job.js
index c6b5844dff6..cf8fda9a4fa 100644
--- a/app/assets/javascripts/job.js
+++ b/app/assets/javascripts/job.js
@@ -14,8 +14,8 @@ export default class Job {
     this.state = this.options.logState;
     this.buildStage = this.options.buildStage;
     this.$document = $(document);
+    this.$window = $(window);
     this.logBytes = 0;
-    this.hasBeenScrolled = false;
     this.updateDropdown = this.updateDropdown.bind(this);
 
     this.$buildTrace = $('#build-trace');
@@ -54,23 +54,18 @@ export default class Job {
 
     this.scrollThrottled = _.throttle(this.toggleScroll.bind(this), 100);
 
-    $(window)
+    this.$window
       .off('scroll')
       .on('scroll', () => {
-        const contentHeight = this.$buildTraceOutput.height();
-        if (contentHeight > this.windowSize) {
-          // means the user did not scroll, the content was updated.
-          this.windowSize = contentHeight;
-        } else {
-          // User scrolled
-          this.hasBeenScrolled = true;
+        if (!this.isScrolledToBottom()) {
           this.toggleScrollAnimation(false);
+        } else if (this.isScrolledToBottom() && !this.isLogComplete) {
+          this.toggleScrollAnimation(true);
         }
-
         this.scrollThrottled();
       });
 
-    $(window)
+    this.$window
       .off('resize.build')
       .on('resize.build', _.throttle(this.sidebarOnResize.bind(this), 100));
 
@@ -99,14 +94,14 @@ export default class Job {
 
   // eslint-disable-next-line class-methods-use-this
   canScroll() {
-    return $(document).height() > $(window).height();
+    return this.$document.height() > this.$window.height();
   }
 
   toggleScroll() {
-    const currentPosition = $(document).scrollTop();
-    const scrollHeight = $(document).height();
+    const currentPosition = this.$document.scrollTop();
+    const scrollHeight = this.$document.height();
 
-    const windowHeight = $(window).height();
+    const windowHeight = this.$window.height();
     if (this.canScroll()) {
       if (currentPosition > 0 &&
         (scrollHeight - currentPosition !== windowHeight)) {
@@ -119,7 +114,7 @@ export default class Job {
 
         this.toggleDisableButton(this.$scrollTopBtn, true);
         this.toggleDisableButton(this.$scrollBottomBtn, false);
-      } else if (scrollHeight - currentPosition === windowHeight) {
+      } else if (this.isScrolledToBottom()) {
         // User is at the bottom of the build log.
 
         this.toggleDisableButton(this.$scrollTopBtn, false);
@@ -131,9 +126,17 @@ export default class Job {
     }
   }
 
+  isScrolledToBottom() {
+    const currentPosition = this.$document.scrollTop();
+    const scrollHeight = this.$document.height();
+
+    const windowHeight = this.$window.height();
+    return scrollHeight - currentPosition === windowHeight;
+  }
+
   // eslint-disable-next-line class-methods-use-this
   scrollDown() {
-    $(document).scrollTop($(document).height());
+    this.$document.scrollTop(this.$document.height());
   }
 
   scrollToBottom() {
@@ -143,7 +146,7 @@ export default class Job {
   }
 
   scrollToTop() {
-    $(document).scrollTop(0);
+    this.$document.scrollTop(0);
     this.hasBeenScrolled = true;
     this.toggleScroll();
   }
@@ -174,7 +177,7 @@ export default class Job {
           this.state = log.state;
         }
 
-        this.windowSize = this.$buildTraceOutput.height();
+        this.isScrollInBottom = this.isScrolledToBottom();
 
         if (log.append) {
           this.$buildTraceOutput.append(log.html);
@@ -194,14 +197,9 @@ export default class Job {
         } else {
           this.$truncatedInfo.addClass('hidden');
         }
+        this.isLogComplete = log.complete;
 
         if (!log.complete) {
-          if (!this.hasBeenScrolled) {
-            this.toggleScrollAnimation(true);
-          } else {
-            this.toggleScrollAnimation(false);
-          }
-
           this.timeout = setTimeout(() => {
             this.getBuildTrace();
           }, 4000);
@@ -218,7 +216,7 @@ export default class Job {
         this.$buildRefreshAnimation.remove();
       })
       .then(() => {
-        if (!this.hasBeenScrolled) {
+        if (this.isScrollInBottom) {
           this.scrollDown();
         }
       })
diff --git a/app/assets/javascripts/labels_select.js b/app/assets/javascripts/labels_select.js
index 9b35efcb499..f7a1c9f1e40 100644
--- a/app/assets/javascripts/labels_select.js
+++ b/app/assets/javascripts/labels_select.js
@@ -7,7 +7,7 @@ import DropdownUtils from './filtered_search/dropdown_utils';
 import CreateLabelDropdown from './create_label';
 
 export default class LabelsSelect {
-  constructor(els) {
+  constructor(els, options = {}) {
     var _this, $els;
     _this = this;
 
@@ -57,6 +57,7 @@ export default class LabelsSelect {
         labelHTMLTemplate = _.template('<% _.each(labels, function(label){ %> <a href="<%- ["",issueURLSplit[1], issueURLSplit[2],""].join("/") %>issues?label_name[]=<%- encodeURIComponent(label.title) %>"> <span class="label has-tooltip color-label" title="<%- label.description %>" style="background-color: <%- label.color %>; color: <%- label.text_color %>;"> <%- label.title %> </span> </a> <% }); %>');
         labelNoneHTMLTemplate = '<span class="no-value">None</span>';
       }
+      const handleClick = options.handleClick;
 
       $sidebarLabelTooltip.tooltip();
 
@@ -390,6 +391,10 @@ export default class LabelsSelect {
               .then(fadeOutLoader)
               .catch(fadeOutLoader);
           }
+          else if (handleClick) {
+            e.preventDefault();
+            handleClick(label);
+          }
           else {
             if ($dropdown.hasClass('js-multiselect')) {
 
diff --git a/app/assets/javascripts/lib/utils/common_utils.js b/app/assets/javascripts/lib/utils/common_utils.js
index 07899777a1e..195e2ca6a78 100644
--- a/app/assets/javascripts/lib/utils/common_utils.js
+++ b/app/assets/javascripts/lib/utils/common_utils.js
@@ -172,7 +172,6 @@ export const getSelectedFragment = () => {
   return documentFragment;
 };
 
-// TODO: Update this name, there is a gl.text.insertText function.
 export const insertText = (target, text) => {
   // Firefox doesn't support `document.execCommand('insertText', false, text)` on textareas
   const selectionStart = target.selectionStart;
@@ -311,6 +310,42 @@ export const setParamInURL = (param, value) => {
 };
 
 /**
+ * Given a string of query parameters creates an object.
+ *
+ * @example
+ * `scope=all&page=2` -> { scope: 'all', page: '2'}
+ * `scope=all` -> { scope: 'all' }
+ * ``-> {}
+ * @param {String} query
+ * @returns {Object}
+ */
+export const parseQueryStringIntoObject = (query = '') => {
+  if (query === '') return {};
+
+  return query
+    .split('&')
+    .reduce((acc, element) => {
+      const val = element.split('=');
+      Object.assign(acc, {
+        [val[0]]: decodeURIComponent(val[1]),
+      });
+      return acc;
+    }, {});
+};
+
+export const buildUrlWithCurrentLocation = param => (param ? `${window.location.pathname}${param}` : window.location.pathname);
+
+/**
+ * Based on the current location and the string parameters provided
+ * creates a new entry in the history without reloading the page.
+ *
+ * @param {String} param
+ */
+export const historyPushState = (newUrl) => {
+  window.history.pushState({}, document.title, newUrl);
+};
+
+/**
  * Converts permission provided as strings to booleans.
  *
  * @param  {String} string
diff --git a/app/assets/javascripts/lib/utils/datetime_utility.js b/app/assets/javascripts/lib/utils/datetime_utility.js
index 29fc91733b3..5679b8c9a09 100644
--- a/app/assets/javascripts/lib/utils/datetime_utility.js
+++ b/app/assets/javascripts/lib/utils/datetime_utility.js
@@ -2,6 +2,7 @@
 
 import timeago from 'timeago.js';
 import dateFormat from 'vendor/date.format';
+import { pluralize } from './text_utility';
 
 import {
   lang,
@@ -143,9 +144,9 @@ export function timeIntervalInWords(intervalInSeconds) {
   let text = '';
 
   if (minutes >= 1) {
-    text = `${minutes} ${gl.text.pluralize('minute', minutes)} ${seconds} ${gl.text.pluralize('second', seconds)}`;
+    text = `${minutes} ${pluralize('minute', minutes)} ${seconds} ${pluralize('second', seconds)}`;
   } else {
-    text = `${seconds} ${gl.text.pluralize('second', seconds)}`;
+    text = `${seconds} ${pluralize('second', seconds)}`;
   }
   return text;
 }
diff --git a/app/assets/javascripts/lib/utils/number_utils.js b/app/assets/javascripts/lib/utils/number_utils.js
index 917a45eb06b..a02c79b787e 100644
--- a/app/assets/javascripts/lib/utils/number_utils.js
+++ b/app/assets/javascripts/lib/utils/number_utils.js
@@ -52,3 +52,31 @@ export function bytesToKiB(number) {
 export function bytesToMiB(number) {
   return number / (BYTES_IN_KIB * BYTES_IN_KIB);
 }
+
+/**
+ * Utility function that calculates GiB of the given bytes.
+ * @param {Number} number
+ * @returns {Number}
+ */
+export function bytesToGiB(number) {
+  return number / (BYTES_IN_KIB * BYTES_IN_KIB * BYTES_IN_KIB);
+}
+
+/**
+ * Port of rails number_to_human_size
+ * Formats the bytes in number into a more understandable
+ * representation (e.g., giving it 1500 yields 1.5 KB).
+ *
+ * @param {Number} size
+ * @returns {String}
+ */
+export function numberToHumanSize(size) {
+  if (size < BYTES_IN_KIB) {
+    return `${size} bytes`;
+  } else if (size < BYTES_IN_KIB * BYTES_IN_KIB) {
+    return `${bytesToKiB(size).toFixed(2)} KiB`;
+  } else if (size < BYTES_IN_KIB * BYTES_IN_KIB * BYTES_IN_KIB) {
+    return `${bytesToMiB(size).toFixed(2)} MiB`;
+  }
+  return `${bytesToGiB(size).toFixed(2)} GiB`;
+}
diff --git a/app/assets/javascripts/lib/utils/poll.js b/app/assets/javascripts/lib/utils/poll.js
index 1485e900945..65a8cf2c891 100644
--- a/app/assets/javascripts/lib/utils/poll.js
+++ b/app/assets/javascripts/lib/utils/poll.js
@@ -60,7 +60,6 @@ export default class Poll {
   checkConditions(response) {
     const headers = normalizeHeaders(response.headers);
     const pollInterval = parseInt(headers[this.intervalHeader], 10);
-
     if (pollInterval > 0 && response.status === httpStatusCodes.OK && this.canPoll) {
       this.timeoutID = setTimeout(() => {
         this.makeRequest();
@@ -102,7 +101,12 @@ export default class Poll {
   /**
    * Restarts polling after it has been stoped
    */
-  restart() {
+  restart(options) {
+    // update data
+    if (options && options.data) {
+      this.options.data = options.data;
+    }
+
     this.canPoll = true;
     this.makeRequest();
   }
diff --git a/app/assets/javascripts/lib/utils/text_markdown.js b/app/assets/javascripts/lib/utils/text_markdown.js
new file mode 100644
index 00000000000..2dc9cf0cc29
--- /dev/null
+++ b/app/assets/javascripts/lib/utils/text_markdown.js
@@ -0,0 +1,153 @@
+/* eslint-disable import/prefer-default-export, func-names, space-before-function-paren, wrap-iife, no-var, no-param-reassign, no-cond-assign, quotes, one-var, one-var-declaration-per-line, operator-assignment, no-else-return, prefer-template, prefer-arrow-callback, no-empty, max-len, consistent-return, no-unused-vars, no-return-assign, max-len, vars-on-top */
+
+const textUtils = {};
+
+textUtils.selectedText = function(text, textarea) {
+  return text.substring(textarea.selectionStart, textarea.selectionEnd);
+};
+
+textUtils.lineBefore = function(text, textarea) {
+  var split;
+  split = text.substring(0, textarea.selectionStart).trim().split('\n');
+  return split[split.length - 1];
+};
+
+textUtils.lineAfter = function(text, textarea) {
+  return text.substring(textarea.selectionEnd).trim().split('\n')[0];
+};
+
+textUtils.blockTagText = function(text, textArea, blockTag, selected) {
+  var lineAfter, lineBefore;
+  lineBefore = this.lineBefore(text, textArea);
+  lineAfter = this.lineAfter(text, textArea);
+  if (lineBefore === blockTag && lineAfter === blockTag) {
+    // To remove the block tag we have to select the line before & after
+    if (blockTag != null) {
+      textArea.selectionStart = textArea.selectionStart - (blockTag.length + 1);
+      textArea.selectionEnd = textArea.selectionEnd + (blockTag.length + 1);
+    }
+    return selected;
+  } else {
+    return blockTag + "\n" + selected + "\n" + blockTag;
+  }
+};
+
+textUtils.insertText = function(textArea, text, tag, blockTag, selected, wrap) {
+  var insertText, inserted, selectedSplit, startChar, removedLastNewLine, removedFirstNewLine, currentLineEmpty, lastNewLine;
+  removedLastNewLine = false;
+  removedFirstNewLine = false;
+  currentLineEmpty = false;
+
+  // Remove the first newline
+  if (selected.indexOf('\n') === 0) {
+    removedFirstNewLine = true;
+    selected = selected.replace(/\n+/, '');
+  }
+
+  // Remove the last newline
+  if (textArea.selectionEnd - textArea.selectionStart > selected.replace(/\n$/, '').length) {
+    removedLastNewLine = true;
+    selected = selected.replace(/\n$/, '');
+  }
+
+  selectedSplit = selected.split('\n');
+
+  if (!wrap) {
+    lastNewLine = textArea.value.substr(0, textArea.selectionStart).lastIndexOf('\n');
+
+    // Check whether the current line is empty or consists only of spaces(=handle as empty)
+    if (/^\s*$/.test(textArea.value.substring(lastNewLine, textArea.selectionStart))) {
+      currentLineEmpty = true;
+    }
+  }
+
+  startChar = !wrap && !currentLineEmpty && textArea.selectionStart > 0 ? '\n' : '';
+
+  if (selectedSplit.length > 1 && (!wrap || (blockTag != null && blockTag !== ''))) {
+    if (blockTag != null && blockTag !== '') {
+      insertText = this.blockTagText(text, textArea, blockTag, selected);
+    } else {
+      insertText = selectedSplit.map(function(val) {
+        if (val.indexOf(tag) === 0) {
+          return "" + (val.replace(tag, ''));
+        } else {
+          return "" + tag + val;
+        }
+      }).join('\n');
+    }
+  } else {
+    insertText = "" + startChar + tag + selected + (wrap ? tag : ' ');
+  }
+
+  if (removedFirstNewLine) {
+    insertText = '\n' + insertText;
+  }
+
+  if (removedLastNewLine) {
+    insertText += '\n';
+  }
+
+  if (document.queryCommandSupported('insertText')) {
+    inserted = document.execCommand('insertText', false, insertText);
+  }
+  if (!inserted) {
+    try {
+      document.execCommand("ms-beginUndoUnit");
+    } catch (error) {}
+    textArea.value = this.replaceRange(text, textArea.selectionStart, textArea.selectionEnd, insertText);
+    try {
+      document.execCommand("ms-endUndoUnit");
+    } catch (error) {}
+  }
+  return this.moveCursor(textArea, tag, wrap, removedLastNewLine);
+};
+
+textUtils.moveCursor = function(textArea, tag, wrapped, removedLastNewLine) {
+  var pos;
+  if (!textArea.setSelectionRange) {
+    return;
+  }
+  if (textArea.selectionStart === textArea.selectionEnd) {
+    if (wrapped) {
+      pos = textArea.selectionStart - tag.length;
+    } else {
+      pos = textArea.selectionStart;
+    }
+
+    if (removedLastNewLine) {
+      pos -= 1;
+    }
+
+    return textArea.setSelectionRange(pos, pos);
+  }
+};
+
+textUtils.updateText = function(textArea, tag, blockTag, wrap) {
+  var $textArea, selected, text;
+  $textArea = $(textArea);
+  textArea = $textArea.get(0);
+  text = $textArea.val();
+  selected = this.selectedText(text, textArea);
+  $textArea.focus();
+  return this.insertText(textArea, text, tag, blockTag, selected, wrap);
+};
+
+textUtils.init = function(form) {
+  var self;
+  self = this;
+  return $('.js-md', form).off('click').on('click', function() {
+    var $this;
+    $this = $(this);
+    return self.updateText($this.closest('.md-area').find('textarea'), $this.data('md-tag'), $this.data('md-block'), !$this.data('md-prepend'));
+  });
+};
+
+textUtils.removeListeners = function(form) {
+  return $('.js-md', form).off('click');
+};
+
+textUtils.replaceRange = function(s, start, end, substitute) {
+  return s.substring(0, start) + substitute + s.substring(end);
+};
+
+export default textUtils;
diff --git a/app/assets/javascripts/lib/utils/text_utility.js b/app/assets/javascripts/lib/utils/text_utility.js
index f776829f69c..a1475b92c7e 100644
--- a/app/assets/javascripts/lib/utils/text_utility.js
+++ b/app/assets/javascripts/lib/utils/text_utility.js
@@ -1,18 +1,13 @@
-/* eslint-disable import/prefer-default-export, func-names, space-before-function-paren, wrap-iife, no-var, no-param-reassign, no-cond-assign, quotes, one-var, one-var-declaration-per-line, operator-assignment, no-else-return, prefer-template, prefer-arrow-callback, no-empty, max-len, consistent-return, no-unused-vars, no-return-assign, max-len, vars-on-top */
-
-import 'vendor/latinise';
-
-var base;
-var w = window;
-if (w.gl == null) {
-  w.gl = {};
-}
-if ((base = w.gl).text == null) {
-  base.text = {};
-}
-gl.text.addDelimiter = function(text) {
-  return text ? text.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",") : text;
-};
+/**
+ * Adds a , to a string composed by numbers, at every 3 chars.
+ *
+ * 2333 -> 2,333
+ * 232324 -> 232,324
+ *
+ * @param {String} text
+ * @returns {String}
+ */
+export const addDelimiter = text => (text ? text.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ',') : text);
 
 /**
  * Returns '99+' for numbers bigger than 99.
@@ -20,178 +15,43 @@ gl.text.addDelimiter = function(text) {
  * @param {Number} count
  * @return {Number|String}
  */
-export function highCountTrim(count) {
-  return count > 99 ? '99+' : count;
-}
-
-gl.text.randomString = function() {
-  return Math.random().toString(36).substring(7);
-};
-gl.text.replaceRange = function(s, start, end, substitute) {
-  return s.substring(0, start) + substitute + s.substring(end);
-};
-gl.text.getTextWidth = function(text, font) {
-  /**
-  * Uses canvas.measureText to compute and return the width of the given text of given font in pixels.
-  *
-  * @param {String} text The text to be rendered.
-  * @param {String} font The css font descriptor that text is to be rendered with (e.g. "bold 14px verdana").
-  *
-  * @see http://stackoverflow.com/questions/118241/calculate-text-width-with-javascript/21015393#21015393
-  */
-  // re-use canvas object for better performance
-  var canvas = gl.text.getTextWidth.canvas || (gl.text.getTextWidth.canvas = document.createElement('canvas'));
-  var context = canvas.getContext('2d');
-  context.font = font;
-  return context.measureText(text).width;
-};
-gl.text.selectedText = function(text, textarea) {
-  return text.substring(textarea.selectionStart, textarea.selectionEnd);
-};
-gl.text.lineBefore = function(text, textarea) {
-  var split;
-  split = text.substring(0, textarea.selectionStart).trim().split('\n');
-  return split[split.length - 1];
-};
-gl.text.lineAfter = function(text, textarea) {
-  return text.substring(textarea.selectionEnd).trim().split('\n')[0];
-};
-gl.text.blockTagText = function(text, textArea, blockTag, selected) {
-  var lineAfter, lineBefore;
-  lineBefore = this.lineBefore(text, textArea);
-  lineAfter = this.lineAfter(text, textArea);
-  if (lineBefore === blockTag && lineAfter === blockTag) {
-    // To remove the block tag we have to select the line before & after
-    if (blockTag != null) {
-      textArea.selectionStart = textArea.selectionStart - (blockTag.length + 1);
-      textArea.selectionEnd = textArea.selectionEnd + (blockTag.length + 1);
-    }
-    return selected;
-  } else {
-    return blockTag + "\n" + selected + "\n" + blockTag;
-  }
-};
-gl.text.insertText = function(textArea, text, tag, blockTag, selected, wrap) {
-  var insertText, inserted, selectedSplit, startChar, removedLastNewLine, removedFirstNewLine, currentLineEmpty, lastNewLine;
-  removedLastNewLine = false;
-  removedFirstNewLine = false;
-  currentLineEmpty = false;
-
-  // Remove the first newline
-  if (selected.indexOf('\n') === 0) {
-    removedFirstNewLine = true;
-    selected = selected.replace(/\n+/, '');
-  }
-
-  // Remove the last newline
-  if (textArea.selectionEnd - textArea.selectionStart > selected.replace(/\n$/, '').length) {
-    removedLastNewLine = true;
-    selected = selected.replace(/\n$/, '');
-  }
-
-  selectedSplit = selected.split('\n');
-
-  if (!wrap) {
-    lastNewLine = textArea.value.substr(0, textArea.selectionStart).lastIndexOf('\n');
-
-    // Check whether the current line is empty or consists only of spaces(=handle as empty)
-    if (/^\s*$/.test(textArea.value.substring(lastNewLine, textArea.selectionStart))) {
-      currentLineEmpty = true;
-    }
-  }
-
-  startChar = !wrap && !currentLineEmpty && textArea.selectionStart > 0 ? '\n' : '';
+export const highCountTrim = count => (count > 99 ? '99+' : count);
 
-  if (selectedSplit.length > 1 && (!wrap || (blockTag != null && blockTag !== ''))) {
-    if (blockTag != null && blockTag !== '') {
-      insertText = this.blockTagText(text, textArea, blockTag, selected);
-    } else {
-      insertText = selectedSplit.map(function(val) {
-        if (val.indexOf(tag) === 0) {
-          return "" + (val.replace(tag, ''));
-        } else {
-          return "" + tag + val;
-        }
-      }).join('\n');
-    }
-  } else {
-    insertText = "" + startChar + tag + selected + (wrap ? tag : ' ');
-  }
+/**
+ * Converts first char to uppercase and replaces undercores with spaces
+ * @param {String} string
+ * @requires {String}
+ */
+export const humanize = string => string.charAt(0).toUpperCase() + string.replace(/_/g, ' ').slice(1);
 
-  if (removedFirstNewLine) {
-    insertText = '\n' + insertText;
-  }
+/**
+ * Adds an 's' to the end of the string when count is bigger than 0
+ * @param {String} str
+ * @param {Number} count
+ * @returns {String}
+ */
+export const pluralize = (str, count) => str + (count > 1 || count === 0 ? 's' : '');
 
-  if (removedLastNewLine) {
-    insertText += '\n';
-  }
+/**
+ * Replaces underscores with dashes
+ * @param {*} str
+ * @returns {String}
+ */
+export const dasherize = str => str.replace(/[_\s]+/g, '-');
 
-  if (document.queryCommandSupported('insertText')) {
-    inserted = document.execCommand('insertText', false, insertText);
-  }
-  if (!inserted) {
-    try {
-      document.execCommand("ms-beginUndoUnit");
-    } catch (error) {}
-    textArea.value = this.replaceRange(text, textArea.selectionStart, textArea.selectionEnd, insertText);
-    try {
-      document.execCommand("ms-endUndoUnit");
-    } catch (error) {}
-  }
-  return this.moveCursor(textArea, tag, wrap, removedLastNewLine);
-};
-gl.text.moveCursor = function(textArea, tag, wrapped, removedLastNewLine) {
-  var pos;
-  if (!textArea.setSelectionRange) {
-    return;
-  }
-  if (textArea.selectionStart === textArea.selectionEnd) {
-    if (wrapped) {
-      pos = textArea.selectionStart - tag.length;
-    } else {
-      pos = textArea.selectionStart;
-    }
+/**
+ * Removes accents and converts to lower case
+ * @param {String} str
+ * @returns {String}
+ */
+export const slugify = str => str.trim().toLowerCase();
 
-    if (removedLastNewLine) {
-      pos -= 1;
-    }
+/**
+ * Truncates given text
+ *
+ * @param {String} string
+ * @param {Number} maxLength
+ * @returns {String}
+ */
+export const truncate = (string, maxLength) => `${string.substr(0, (maxLength - 3))}...`;
 
-    return textArea.setSelectionRange(pos, pos);
-  }
-};
-gl.text.updateText = function(textArea, tag, blockTag, wrap) {
-  var $textArea, selected, text;
-  $textArea = $(textArea);
-  textArea = $textArea.get(0);
-  text = $textArea.val();
-  selected = this.selectedText(text, textArea);
-  $textArea.focus();
-  return this.insertText(textArea, text, tag, blockTag, selected, wrap);
-};
-gl.text.init = function(form) {
-  var self;
-  self = this;
-  return $('.js-md', form).off('click').on('click', function() {
-    var $this;
-    $this = $(this);
-    return self.updateText($this.closest('.md-area').find('textarea'), $this.data('md-tag'), $this.data('md-block'), !$this.data('md-prepend'));
-  });
-};
-gl.text.removeListeners = function(form) {
-  return $('.js-md', form).off('click');
-};
-gl.text.humanize = function(string) {
-  return string.charAt(0).toUpperCase() + string.replace(/_/g, ' ').slice(1);
-};
-gl.text.pluralize = function(str, count) {
-  return str + (count > 1 || count === 0 ? 's' : '');
-};
-gl.text.truncate = function(string, maxLength) {
-  return string.substr(0, (maxLength - 3)) + '...';
-};
-gl.text.dasherize = function(str) {
-  return str.replace(/[_\s]+/g, '-');
-};
-gl.text.slugify = function(str) {
-  return str.trim().toLowerCase().latinise();
-};
diff --git a/app/assets/javascripts/lib/utils/url_utility.js b/app/assets/javascripts/lib/utils/url_utility.js
index 1aa63216baf..17236c91490 100644
--- a/app/assets/javascripts/lib/utils/url_utility.js
+++ b/app/assets/javascripts/lib/utils/url_utility.js
@@ -100,6 +100,10 @@ export function visitUrl(url, external = false) {
   }
 }
 
+export function redirectTo(url) {
+  return window.location.assign(url);
+}
+
 window.gl = window.gl || {};
 window.gl.utils = {
   ...(window.gl.utils || {}),
diff --git a/app/assets/javascripts/main.js b/app/assets/javascripts/main.js
index 9117f033c9f..0035dd23011 100644
--- a/app/assets/javascripts/main.js
+++ b/app/assets/javascripts/main.js
@@ -30,7 +30,6 @@ import './commit/image_file';
 import { handleLocationHash } from './lib/utils/common_utils';
 import './lib/utils/datetime_utility';
 import './lib/utils/pretty_time';
-import './lib/utils/text_utility';
 import './lib/utils/url_utility';
 
 // behaviors
@@ -46,7 +45,6 @@ import './commits';
 import './compare';
 import './compare_autocomplete';
 import './confirm_danger_modal';
-import './copy_as_gfm';
 import './copy_to_clipboard';
 import Flash, { removeFlashClickListener } from './flash';
 import './gl_dropdown';
@@ -71,8 +69,6 @@ import './notifications_dropdown';
 import './notifications_form';
 import './pager';
 import './preview_markdown';
-import './project';
-import './project_avatar';
 import './project_find_file';
 import './project_import';
 import './project_label_subscription';
diff --git a/app/assets/javascripts/members.js b/app/assets/javascripts/members.js
index 6264750a4fb..52315e969d1 100644
--- a/app/assets/javascripts/members.js
+++ b/app/assets/javascripts/members.js
@@ -5,7 +5,6 @@ export default class Members {
   }
 
   addListeners() {
-    $('.project_member, .group_member').off('ajax:success').on('ajax:success', this.removeRow);
     $('.js-member-update-control').off('change').on('change', this.formSubmit.bind(this));
     $('.js-edit-member-form').off('ajax:success').on('ajax:success', this.formSuccess.bind(this));
     gl.utils.disableButtonIfEmptyField('#user_ids', 'input[name=commit]', 'change');
@@ -33,17 +32,6 @@ export default class Members {
       });
     });
   }
-  // eslint-disable-next-line class-methods-use-this
-  removeRow(e) {
-    const $target = $(e.target);
-
-    if ($target.hasClass('btn-remove')) {
-      $target.closest('.member')
-        .fadeOut(function fadeOutMemberRow() {
-          $(this).remove();
-        });
-    }
-  }
 
   formSubmit(e, $el = null) {
     const $this = e ? $(e.currentTarget) : $el;
diff --git a/app/assets/javascripts/merge_request.js b/app/assets/javascripts/merge_request.js
index af0658eb668..d30ff12bb59 100644
--- a/app/assets/javascripts/merge_request.js
+++ b/app/assets/javascripts/merge_request.js
@@ -5,6 +5,7 @@ import 'vendor/jquery.waitforimages';
 import TaskList from './task_list';
 import './merge_request_tabs';
 import IssuablesHelper from './helpers/issuables_helper';
+import { addDelimiter } from './lib/utils/text_utility';
 
 (function() {
   this.MergeRequest = (function() {
@@ -124,7 +125,7 @@ import IssuablesHelper from './helpers/issuables_helper';
       const $el = $('.nav-links .js-merge-counter');
       const count = Math.max((parseInt($el.text().replace(/[^\d]/, ''), 10) - by), 0);
 
-      $el.text(gl.text.addDelimiter(count));
+      $el.text(addDelimiter(count));
     };
 
     MergeRequest.prototype.hideCloseButton = function() {
diff --git a/app/assets/javascripts/milestone_select.js b/app/assets/javascripts/milestone_select.js
index e7d5325a509..74e5a4f1cea 100644
--- a/app/assets/javascripts/milestone_select.js
+++ b/app/assets/javascripts/milestone_select.js
@@ -5,7 +5,7 @@ import _ from 'underscore';
 
 (function() {
   this.MilestoneSelect = (function() {
-    function MilestoneSelect(currentProject, els) {
+    function MilestoneSelect(currentProject, els, options = {}) {
       var _this, $els;
       if (currentProject != null) {
         _this = this;
@@ -136,19 +136,26 @@ import _ from 'underscore';
           },
           opened: function(e) {
             const $el = $(e.currentTarget);
-            if ($dropdown.hasClass('js-issue-board-sidebar')) {
+            if ($dropdown.hasClass('js-issue-board-sidebar') || options.handleClick) {
               selectedMilestone = $dropdown[0].dataset.selected || selectedMilestoneDefault;
             }
             $('a.is-active', $el).removeClass('is-active');
             $(`[data-milestone-id="${selectedMilestone}"] > a`, $el).addClass('is-active');
           },
           vue: $dropdown.hasClass('js-issue-board-sidebar'),
-          clicked: function(options) {
-            const { $el, e } = options;
-            let selected = options.selectedObj;
+          clicked: function(clickEvent) {
+            const { $el, e } = clickEvent;
+            let selected = clickEvent.selectedObj;
 
             var data, isIssueIndex, isMRIndex, isSelecting, page, boardsStore;
             if (!selected) return;
+
+            if (options.handleClick) {
+              e.preventDefault();
+              options.handleClick(selected);
+              return;
+            }
+
             page = $('body').attr('data-page');
             isIssueIndex = page === 'projects:issues:index';
             isMRIndex = (page === page && page === 'projects:merge_requests:index');
diff --git a/app/assets/javascripts/monitoring/components/graph.vue b/app/assets/javascripts/monitoring/components/graph.vue
index 5aa3865f96a..f8782fde927 100644
--- a/app/assets/javascripts/monitoring/components/graph.vue
+++ b/app/assets/javascripts/monitoring/components/graph.vue
@@ -138,7 +138,7 @@
 
       renderAxesPaths() {
         this.timeSeries = createTimeSeries(
-          this.graphData.queries[0],
+          this.graphData.queries,
           this.graphWidth,
           this.graphHeight,
           this.graphHeightOffset,
@@ -153,8 +153,9 @@
         const axisYScale = d3.scale.linear()
           .range([this.graphHeight - this.graphHeightOffset, 0]);
 
-        axisXScale.domain(d3.extent(this.timeSeries[0].values, d => d.time));
-        axisYScale.domain([0, d3.max(this.timeSeries[0].values.map(d => d.value))]);
+        const allValues = this.timeSeries.reduce((all, { values }) => all.concat(values), []);
+        axisXScale.domain(d3.extent(allValues, d => d.time));
+        axisYScale.domain([0, d3.max(allValues.map(d => d.value))]);
 
         const xAxis = d3.svg.axis()
           .scale(axisXScale)
@@ -246,6 +247,7 @@
               :key="index"
               :generated-line-path="path.linePath"
               :generated-area-path="path.areaPath"
+              :line-style="path.lineStyle"
               :line-color="path.lineColor"
               :area-color="path.areaColor"
             />
diff --git a/app/assets/javascripts/monitoring/components/graph/legend.vue b/app/assets/javascripts/monitoring/components/graph/legend.vue
index 85b6d7f4cbe..440b1b12631 100644
--- a/app/assets/javascripts/monitoring/components/graph/legend.vue
+++ b/app/assets/javascripts/monitoring/components/graph/legend.vue
@@ -79,7 +79,8 @@
       },
 
       formatMetricUsage(series) {
-        const value = series.values[this.currentDataIndex].value;
+        const value = series.values[this.currentDataIndex] &&
+          series.values[this.currentDataIndex].value;
         if (isNaN(value)) {
           return '-';
         }
@@ -92,6 +93,12 @@
         }
         return `${this.legendTitle} series ${index + 1} ${this.formatMetricUsage(series)}`;
       },
+
+      strokeDashArray(type) {
+        if (type === 'dashed') return '6, 3';
+        if (type === 'dotted') return '3, 3';
+        return null;
+      },
     },
     mounted() {
       this.$nextTick(() => {
@@ -162,13 +169,15 @@
       v-for="(series, index) in timeSeries"
       :key="index"
       :transform="translateLegendGroup(index)">
-      <rect
-        :fill="series.areaColor"
-        :width="measurements.legends.width"
-        :height="measurements.legends.height"
-        x="20"
-        :y="graphHeight - measurements.legendOffset">
-      </rect>
+      <line
+        :stroke="series.lineColor"
+        :stroke-width="measurements.legends.height"
+        :stroke-dasharray="strokeDashArray(series.lineStyle)"
+        :x1="measurements.legends.offsetX"
+        :x2="measurements.legends.offsetX + measurements.legends.width"
+        :y1="graphHeight - measurements.legends.offsetY"
+        :y2="graphHeight - measurements.legends.offsetY">
+      </line>
       <text
         v-if="timeSeries.length > 1"
         class="legend-metric-title"
diff --git a/app/assets/javascripts/monitoring/components/graph/path.vue b/app/assets/javascripts/monitoring/components/graph/path.vue
index 043f1bf66bb..5e6d409033a 100644
--- a/app/assets/javascripts/monitoring/components/graph/path.vue
+++ b/app/assets/javascripts/monitoring/components/graph/path.vue
@@ -9,6 +9,10 @@
         type: String,
         required: true,
       },
+      lineStyle: {
+        type: String,
+        required: false,
+      },
       lineColor: {
         type: String,
         required: true,
@@ -18,6 +22,13 @@
         required: true,
       },
     },
+    computed: {
+      strokeDashArray() {
+        if (this.lineStyle === 'dashed') return '3, 1';
+        if (this.lineStyle === 'dotted') return '1, 1';
+        return null;
+      },
+    },
   };
 </script>
 <template>
@@ -34,6 +45,7 @@
       :stroke="lineColor"
       fill="none"
       stroke-width="1"
+      :stroke-dasharray="strokeDashArray"
       transform="translate(-5, 20)">
     </path>
   </g>
diff --git a/app/assets/javascripts/monitoring/utils/measurements.js b/app/assets/javascripts/monitoring/utils/measurements.js
index ee3c45efacc..ee866850e13 100644
--- a/app/assets/javascripts/monitoring/utils/measurements.js
+++ b/app/assets/javascripts/monitoring/utils/measurements.js
@@ -7,15 +7,16 @@ export default {
       left: 40,
     },
     legends: {
-      width: 10,
+      width: 15,
       height: 3,
+      offsetX: 20,
+      offsetY: 32,
     },
     backgroundLegend: {
       width: 30,
       height: 50,
     },
     axisLabelLineOffset: -20,
-    legendOffset: 33,
   },
   large: { // This covers both md and lg screen sizes
     margin: {
@@ -27,13 +28,14 @@ export default {
     legends: {
       width: 15,
       height: 3,
+      offsetX: 20,
+      offsetY: 34,
     },
     backgroundLegend: {
       width: 30,
       height: 150,
     },
     axisLabelLineOffset: 20,
-    legendOffset: 36,
   },
   xTicks: 8,
   yTicks: 3,
diff --git a/app/assets/javascripts/monitoring/utils/multiple_time_series.js b/app/assets/javascripts/monitoring/utils/multiple_time_series.js
index 65eec0d8d02..d21a265bd43 100644
--- a/app/assets/javascripts/monitoring/utils/multiple_time_series.js
+++ b/app/assets/javascripts/monitoring/utils/multiple_time_series.js
@@ -11,7 +11,9 @@ const defaultColorPalette = {
 
 const defaultColorOrder = ['blue', 'orange', 'red', 'green', 'purple'];
 
-export default function createTimeSeries(queryData, graphWidth, graphHeight, graphHeightOffset) {
+const defaultStyleOrder = ['solid', 'dashed', 'dotted'];
+
+function queryTimeSeries(query, graphWidth, graphHeight, graphHeightOffset, xDom, yDom, lineStyle) {
   let usedColors = [];
 
   function pickColor(name) {
@@ -31,17 +33,7 @@ export default function createTimeSeries(queryData, graphWidth, graphHeight, gra
     return defaultColorPalette[pick];
   }
 
-  const maxValues = queryData.result.map((timeSeries, index) => {
-    const maxValue = d3.max(timeSeries.values.map(d => d.value));
-    return {
-      maxValue,
-      index,
-    };
-  });
-
-  const maxValueFromSeries = _.max(maxValues, val => val.maxValue);
-
-  return queryData.result.map((timeSeries, timeSeriesNumber) => {
+  return query.result.map((timeSeries, timeSeriesNumber) => {
     let metricTag = '';
     let lineColor = '';
     let areaColor = '';
@@ -52,9 +44,9 @@ export default function createTimeSeries(queryData, graphWidth, graphHeight, gra
     const timeSeriesScaleY = d3.scale.linear()
       .range([graphHeight - graphHeightOffset, 0]);
 
-    timeSeriesScaleX.domain(d3.extent(timeSeries.values, d => d.time));
+    timeSeriesScaleX.domain(xDom);
     timeSeriesScaleX.ticks(d3.time.minute, 60);
-    timeSeriesScaleY.domain([0, maxValueFromSeries.maxValue]);
+    timeSeriesScaleY.domain(yDom);
 
     const defined = d => !isNaN(d.value) && d.value != null;
 
@@ -72,10 +64,10 @@ export default function createTimeSeries(queryData, graphWidth, graphHeight, gra
       .y1(d => timeSeriesScaleY(d.value));
 
     const timeSeriesMetricLabel = timeSeries.metric[Object.keys(timeSeries.metric)[0]];
-    const seriesCustomizationData = queryData.series != null &&
-                                    _.findWhere(queryData.series[0].when,
-                                    { value: timeSeriesMetricLabel });
-    if (seriesCustomizationData != null) {
+    const seriesCustomizationData = query.series != null &&
+      _.findWhere(query.series[0].when, { value: timeSeriesMetricLabel });
+
+    if (seriesCustomizationData) {
       metricTag = seriesCustomizationData.value || timeSeriesMetricLabel;
       [lineColor, areaColor] = pickColor(seriesCustomizationData.color);
     } else {
@@ -83,14 +75,35 @@ export default function createTimeSeries(queryData, graphWidth, graphHeight, gra
       [lineColor, areaColor] = pickColor();
     }
 
+    if (query.track) {
+      metricTag += ` - ${query.track}`;
+    }
+
     return {
       linePath: lineFunction(timeSeries.values),
       areaPath: areaFunction(timeSeries.values),
       timeSeriesScaleX,
       values: timeSeries.values,
+      lineStyle,
       lineColor,
       areaColor,
       metricTag,
     };
   });
 }
+
+export default function createTimeSeries(queries, graphWidth, graphHeight, graphHeightOffset) {
+  const allValues = queries.reduce((allQueryResults, query) => allQueryResults.concat(
+    query.result.reduce((allResults, result) => allResults.concat(result.values), []),
+  ), []);
+
+  const xDom = d3.extent(allValues, d => d.time);
+  const yDom = [0, d3.max(allValues.map(d => d.value))];
+
+  return queries.reduce((series, query, index) => {
+    const lineStyle = defaultStyleOrder[index % defaultStyleOrder.length];
+    return series.concat(
+      queryTimeSeries(query, graphWidth, graphHeight, graphHeightOffset, xDom, yDom, lineStyle),
+    );
+  }, []);
+}
diff --git a/app/assets/javascripts/notes/components/issue_comment_form.vue b/app/assets/javascripts/notes/components/issue_comment_form.vue
index db8f85759b2..30e02554b65 100644
--- a/app/assets/javascripts/notes/components/issue_comment_form.vue
+++ b/app/assets/javascripts/notes/components/issue_comment_form.vue
@@ -357,7 +357,8 @@
                   @click="handleSave(true)"
                   v-if="canUpdateIssue"
                   :class="actionButtonClassNames"
-                  class="btn btn-comment btn-comment-and-close">
+                  :disabled="isSubmitting"
+                  class="btn btn-comment btn-comment-and-close js-action-button">
                   {{issueActionButtonTitle}}
                 </button>
                 <button
diff --git a/app/assets/javascripts/notes/components/issue_discussion_locked_widget.vue b/app/assets/javascripts/notes/components/issue_discussion_locked_widget.vue
index e73ec2aaf71..64466b04b40 100644
--- a/app/assets/javascripts/notes/components/issue_discussion_locked_widget.vue
+++ b/app/assets/javascripts/notes/components/issue_discussion_locked_widget.vue
@@ -1,18 +1,21 @@
 <script>
+  import Icon from '../../vue_shared/components/icon.vue';
+
   export default {
-    computed: {
-      lockIcon() {
-        return gl.utils.spriteIcon('lock');
-      },
+    component: {
+      Icon,
     },
   };
-
 </script>
 
 <template>
   <div class="disabled-comment text-center">
-    <span class="issuable-note-warning">
-      <span class="icon" v-html="lockIcon"></span>
+    <span class="issuable-note-warning inline">
+      <icon
+        name="lock"
+        :size="16"
+        class="icon">
+      </icon>
       <span>This issue is locked. Only <b>project members</b> can comment.</span>
      </span>
   </div>
diff --git a/app/assets/javascripts/pipelines/components/graph/action_component.vue b/app/assets/javascripts/pipelines/components/graph/action_component.vue
index 547140b1a43..19d8e1f49cf 100644
--- a/app/assets/javascripts/pipelines/components/graph/action_component.vue
+++ b/app/assets/javascripts/pipelines/components/graph/action_component.vue
@@ -1,7 +1,7 @@
 <script>
   import tooltip from '../../../vue_shared/directives/tooltip';
   import icon from '../../../vue_shared/components/icon.vue';
-
+  import { dasherize } from '../../../lib/utils/text_utility';
   /**
    * Renders either a cancel, retry or play icon pointing to the given path.
    * TODO: Remove UJS from here and use an async request instead.
@@ -39,7 +39,7 @@
 
     computed: {
       cssClass() {
-        const actionIconDash = gl.text.dasherize(this.actionIcon);
+        const actionIconDash = dasherize(this.actionIcon);
         return `${actionIconDash} js-icon-${actionIconDash}`;
       },
     },
diff --git a/app/assets/javascripts/pipelines/components/navigation_tabs.vue b/app/assets/javascripts/pipelines/components/navigation_tabs.vue
index 73f7e3a0cad..07befd23500 100644
--- a/app/assets/javascripts/pipelines/components/navigation_tabs.vue
+++ b/app/assets/javascripts/pipelines/components/navigation_tabs.vue
@@ -2,16 +2,8 @@
   export default {
     name: 'PipelineNavigationTabs',
     props: {
-      scope: {
-        type: String,
-        required: true,
-      },
-      count: {
-        type: Object,
-        required: true,
-      },
-      paths: {
-        type: Object,
+      tabs: {
+        type: Array,
         required: true,
       },
     },
@@ -23,68 +15,37 @@
         // 0 is valid in a badge, but evaluates to false, we need to check for undefined
         return count !== undefined;
       },
+
+      onTabClick(tab) {
+        this.$emit('onChangeTab', tab.scope);
+      },
     },
 };
 </script>
 <template>
   <ul class="nav-links scrolling-tabs">
     <li
-      class="js-pipelines-tab-all"
-      :class="{ active: scope === 'all'}">
-      <a :href="paths.allPath">
-        All
-        <span
-          v-if="shouldRenderBadge(count.all)"
-          class="badge js-totalbuilds-count">
-          {{count.all}}
-        </span>
-      </a>
-    </li>
-    <li
-      class="js-pipelines-tab-pending"
-      :class="{ active: scope === 'pending'}">
-      <a :href="paths.pendingPath">
-        Pending
-        <span
-          v-if="shouldRenderBadge(count.pending)"
-          class="badge">
-          {{count.pending}}
-        </span>
-      </a>
-    </li>
-    <li
-      class="js-pipelines-tab-running"
-      :class="{ active: scope === 'running'}">
-      <a :href="paths.runningPath">
-        Running
-        <span
-          v-if="shouldRenderBadge(count.running)"
-          class="badge">
-          {{count.running}}
-        </span>
-      </a>
-    </li>
-    <li
-      class="js-pipelines-tab-finished"
-      :class="{ active: scope === 'finished'}">
-      <a :href="paths.finishedPath">
-        Finished
+      v-for="(tab, i) in tabs"
+      :key="i"
+      :class="{
+        active: tab.isActive,
+      }"
+      >
+      <a
+        role="button"
+        @click="onTabClick(tab)"
+        :class="`js-pipelines-tab-${tab.scope}`"
+        >
+        {{ tab.name }}
+
         <span
-          v-if="shouldRenderBadge(count.finished)"
-          class="badge">
-          {{count.finished}}
+          v-if="shouldRenderBadge(tab.count)"
+          class="badge"
+          >
+          {{tab.count}}
         </span>
+
       </a>
     </li>
-    <li
-      class="js-pipelines-tab-branches"
-      :class="{ active: scope === 'branches'}">
-      <a :href="paths.branchesPath">Branches</a>
-    </li>
-    <li
-      class="js-pipelines-tab-tags"
-      :class="{ active: scope === 'tags'}">
-      <a :href="paths.tagsPath">Tags</a>
-    </li>
   </ul>
 </template>
diff --git a/app/assets/javascripts/pipelines/components/pipelines.vue b/app/assets/javascripts/pipelines/components/pipelines.vue
index 3da60e88474..cf241c8ffed 100644
--- a/app/assets/javascripts/pipelines/components/pipelines.vue
+++ b/app/assets/javascripts/pipelines/components/pipelines.vue
@@ -1,10 +1,17 @@
 <script>
+  import _ from 'underscore';
   import PipelinesService from '../services/pipelines_service';
   import pipelinesMixin from '../mixins/pipelines';
   import tablePagination from '../../vue_shared/components/table_pagination.vue';
   import navigationTabs from './navigation_tabs.vue';
   import navigationControls from './nav_controls.vue';
-  import { convertPermissionToBoolean, getParameterByName, setParamInURL } from '../../lib/utils/common_utils';
+  import {
+    convertPermissionToBoolean,
+    getParameterByName,
+    historyPushState,
+    buildUrlWithCurrentLocation,
+    parseQueryStringIntoObject,
+  } from '../../lib/utils/common_utils';
 
   export default {
     props: {
@@ -41,27 +48,18 @@
         autoDevopsPath: pipelinesData.helpAutoDevopsPath,
         newPipelinePath: pipelinesData.newPipelinePath,
         canCreatePipeline: pipelinesData.canCreatePipeline,
-        allPath: pipelinesData.allPath,
-        pendingPath: pipelinesData.pendingPath,
-        runningPath: pipelinesData.runningPath,
-        finishedPath: pipelinesData.finishedPath,
-        branchesPath: pipelinesData.branchesPath,
-        tagsPath: pipelinesData.tagsPath,
         hasCi: pipelinesData.hasCi,
         ciLintPath: pipelinesData.ciLintPath,
         state: this.store.state,
-        apiScope: 'all',
-        pagenum: 1,
+        scope: getParameterByName('scope') || 'all',
+        page: getParameterByName('page') || '1',
+        requestData: {},
       };
     },
     computed: {
       canCreatePipelineParsed() {
         return convertPermissionToBoolean(this.canCreatePipeline);
       },
-      scope() {
-        const scope = getParameterByName('scope');
-        return scope === null ? 'all' : scope;
-      },
 
       /**
       * The empty state should only be rendered when the request is made to fetch all pipelines
@@ -106,46 +104,112 @@
       hasCiEnabled() {
         return this.hasCi !== undefined;
       },
-      paths() {
-        return {
-          allPath: this.allPath,
-          pendingPath: this.pendingPath,
-          finishedPath: this.finishedPath,
-          runningPath: this.runningPath,
-          branchesPath: this.branchesPath,
-          tagsPath: this.tagsPath,
-        };
-      },
-      pageParameter() {
-        return getParameterByName('page') || this.pagenum;
-      },
-      scopeParameter() {
-        return getParameterByName('scope') || this.apiScope;
+
+      tabs() {
+        const { count } = this.state;
+        return [
+          {
+            name: 'All',
+            scope: 'all',
+            count: count.all,
+            isActive: this.scope === 'all',
+          },
+          {
+            name: 'Pending',
+            scope: 'pending',
+            count: count.pending,
+            isActive: this.scope === 'pending',
+          },
+          {
+            name: 'Running',
+            scope: 'running',
+            count: count.running,
+            isActive: this.scope === 'running',
+          },
+          {
+            name: 'Finished',
+            scope: 'finished',
+            count: count.finished,
+            isActive: this.scope === 'finished',
+          },
+          {
+            name: 'Branches',
+            scope: 'branches',
+            isActive: this.scope === 'branches',
+          },
+          {
+            name: 'Tags',
+            scope: 'tags',
+            isActive: this.scope === 'tags',
+          },
+        ];
       },
     },
     created() {
       this.service = new PipelinesService(this.endpoint);
-      this.requestData = { page: this.pageParameter, scope: this.scopeParameter };
+      this.requestData = { page: this.page, scope: this.scope };
     },
     methods: {
+      successCallback(resp) {
+        return resp.json().then((response) => {
+          // Because we are polling & the user is interacting verify if the response received
+          // matches the last request made
+          if (_.isEqual(parseQueryStringIntoObject(resp.url.split('?')[1]), this.requestData)) {
+            this.store.storeCount(response.count);
+            this.store.storePagination(resp.headers);
+            this.setCommonData(response.pipelines);
+          }
+        });
+      },
       /**
-       * Will change the page number and update the URL.
-       *
-       * @param  {Number} pageNumber desired page to go to.
+       * Handles URL and query parameter changes.
+       * When the user uses the pagination or the tabs,
+       *  - update URL
+       *  - Make API request to the server with new parameters
+       *  - Update the polling function
+       *  - Update the internal state
        */
-      change(pageNumber) {
-        const param = setParamInURL('page', pageNumber);
+      updateContent(parameters) {
+        // stop polling
+        this.poll.stop();
+
+        const queryString = Object.keys(parameters).map((parameter) => {
+          const value = parameters[parameter];
+          // update internal state for UI
+          this[parameter] = value;
+          return `${parameter}=${encodeURIComponent(value)}`;
+        }).join('&');
 
-        gl.utils.visitUrl(param);
-        return param;
+        // update polling parameters
+        this.requestData = parameters;
+
+        historyPushState(buildUrlWithCurrentLocation(`?${queryString}`));
+
+        this.isLoading = true;
+        // fetch new data
+        return this.service.getPipelines(this.requestData)
+          .then((response) => {
+            this.isLoading = false;
+            this.successCallback(response);
+
+            // restart polling
+            this.poll.restart({ data: this.requestData });
+          })
+          .catch(() => {
+            this.isLoading = false;
+            this.errorCallback();
+
+            // restart polling
+            this.poll.restart();
+          });
       },
 
-      successCallback(resp) {
-        return resp.json().then((response) => {
-          this.store.storeCount(response.count);
-          this.store.storePagination(resp.headers);
-          this.setCommonData(response.pipelines);
-        });
+      onChangeTab(scope) {
+        this.updateContent({ scope, page: '1' });
+      },
+      onChangePage(page) {
+      /* URLS parameters are strings, we need to parse to match types */
+        this.updateContent({ scope: this.scope, page: Number(page).toString() });
       },
     },
   };
@@ -154,7 +218,7 @@
   <div class="pipelines-container">
     <div
       class="top-area scrolling-tabs-container inner-page-scroll-tabs"
-      v-if="!isLoading && !shouldRenderEmptyState">
+      v-if="!shouldRenderEmptyState">
       <div class="fade-left">
         <i
           class="fa fa-angle-left"
@@ -167,17 +231,17 @@
           aria-hidden="true">
         </i>
       </div>
+
       <navigation-tabs
-        :scope="scope"
-        :count="state.count"
-        :paths="paths"
+        :tabs="tabs"
+        @onChangeTab="onChangeTab"
         />
 
       <navigation-controls
         :new-pipeline-path="newPipelinePath"
         :has-ci-enabled="hasCiEnabled"
         :help-page-path="helpPagePath"
-        :ciLintPath="ciLintPath"
+        :ci-lint-path="ciLintPath"
         :can-create-pipeline="canCreatePipelineParsed "
         />
     </div>
@@ -188,6 +252,7 @@
         label="Loading Pipelines"
         size="3"
         v-if="isLoading"
+        class="prepend-top-20"
         />
 
       <empty-state
@@ -221,8 +286,8 @@
 
       <table-pagination
         v-if="shouldRenderPagination"
-        :change="change"
-        :pageInfo="state.pageInfo"
+        :change="onChangePage"
+        :page-info="state.pageInfo"
         />
     </div>
   </div>
diff --git a/app/assets/javascripts/project.js b/app/assets/javascripts/project.js
index fe6602259e2..ddb78aaeea1 100644
--- a/app/assets/javascripts/project.js
+++ b/app/assets/javascripts/project.js
@@ -1,139 +1,131 @@
-/* eslint-disable func-names, space-before-function-paren, wrap-iife, no-var, quotes, consistent-return, no-new, prefer-arrow-callback, no-return-assign, one-var, one-var-declaration-per-line, object-shorthand, comma-dangle, no-else-return, newline-per-chained-call, no-shadow, vars-on-top, prefer-template, max-len */
+/* eslint-disable func-names, space-before-function-paren, no-var, consistent-return, no-new, prefer-arrow-callback, no-return-assign, one-var, one-var-declaration-per-line, object-shorthand, no-else-return, newline-per-chained-call, no-shadow, vars-on-top, prefer-template, max-len */
 /* global ProjectSelect */
 
 import Cookies from 'js-cookie';
 
-(function() {
-  this.Project = (function() {
-    function Project() {
-      const $cloneOptions = $('ul.clone-options-dropdown');
-      const $projectCloneField = $('#project_clone');
-      const $cloneBtnText = $('a.clone-dropdown-btn span');
+export default class Project {
+  constructor() {
+    const $cloneOptions = $('ul.clone-options-dropdown');
+    const $projectCloneField = $('#project_clone');
+    const $cloneBtnText = $('a.clone-dropdown-btn span');
 
-      const selectedCloneOption = $cloneBtnText.text().trim();
-      if (selectedCloneOption.length > 0) {
-        $(`a:contains('${selectedCloneOption}')`, $cloneOptions).addClass('is-active');
-      }
-
-      $('a', $cloneOptions).on('click', (e) => {
-        const $this = $(e.currentTarget);
-        const url = $this.attr('href');
-
-        e.preventDefault();
-
-        $('.is-active', $cloneOptions).not($this).removeClass('is-active');
-        $this.toggleClass('is-active');
-        $projectCloneField.val(url);
-        $cloneBtnText.text($this.text());
-
-        return $('.clone').text(url);
-      });
-      // Ref switcher
-      this.initRefSwitcher();
-      $('.project-refs-select').on('change', function() {
-        return $(this).parents('form').submit();
-      });
-      $('.hide-no-ssh-message').on('click', function(e) {
-        Cookies.set('hide_no_ssh_message', 'false');
-        $(this).parents('.no-ssh-key-message').remove();
-        return e.preventDefault();
-      });
-      $('.hide-no-password-message').on('click', function(e) {
-        Cookies.set('hide_no_password_message', 'false');
-        $(this).parents('.no-password-message').remove();
-        return e.preventDefault();
-      });
-      this.projectSelectDropdown();
+    const selectedCloneOption = $cloneBtnText.text().trim();
+    if (selectedCloneOption.length > 0) {
+      $(`a:contains('${selectedCloneOption}')`, $cloneOptions).addClass('is-active');
     }
 
-    Project.prototype.projectSelectDropdown = function() {
-      new ProjectSelect();
-      $('.project-item-select').on('click', (function(_this) {
-        return function(e) {
-          return _this.changeProject($(e.currentTarget).val());
-        };
-      })(this));
-    };
-
-    Project.prototype.changeProject = function(url) {
-      return window.location = url;
-    };
-
-    Project.prototype.initRefSwitcher = function() {
-      var refListItem = document.createElement('li');
-      var refLink = document.createElement('a');
-
-      refLink.href = '#';
-
-      return $('.js-project-refs-dropdown').each(function() {
-        var $dropdown, selected;
-        $dropdown = $(this);
-        selected = $dropdown.data('selected');
-        return $dropdown.glDropdown({
-          data: function(term, callback) {
-            return $.ajax({
-              url: $dropdown.data('refs-url'),
-              data: {
-                ref: $dropdown.data('ref'),
-                search: term
-              },
-              dataType: "json"
-            }).done(function(refs) {
-              return callback(refs);
-            });
-          },
-          selectable: true,
-          filterable: true,
-          filterRemote: true,
-          filterByText: true,
-          inputFieldName: $dropdown.data('input-field-name'),
-          fieldName: $dropdown.data('field-name'),
-          renderRow: function(ref) {
-            var li = refListItem.cloneNode(false);
-
-            if (ref.header != null) {
-              li.className = 'dropdown-header';
-              li.textContent = ref.header;
-            } else {
-              var link = refLink.cloneNode(false);
-
-              if (ref === selected) {
-                link.className = 'is-active';
-              }
-
-              link.textContent = ref;
-              link.dataset.ref = ref;
-
-              li.appendChild(link);
+    $('a', $cloneOptions).on('click', (e) => {
+      const $this = $(e.currentTarget);
+      const url = $this.attr('href');
+
+      e.preventDefault();
+
+      $('.is-active', $cloneOptions).not($this).removeClass('is-active');
+      $this.toggleClass('is-active');
+      $projectCloneField.val(url);
+      $cloneBtnText.text($this.text());
+
+      return $('.clone').text(url);
+    });
+    // Ref switcher
+    Project.initRefSwitcher();
+    $('.project-refs-select').on('change', function() {
+      return $(this).parents('form').submit();
+    });
+    $('.hide-no-ssh-message').on('click', function(e) {
+      Cookies.set('hide_no_ssh_message', 'false');
+      $(this).parents('.no-ssh-key-message').remove();
+      return e.preventDefault();
+    });
+    $('.hide-no-password-message').on('click', function(e) {
+      Cookies.set('hide_no_password_message', 'false');
+      $(this).parents('.no-password-message').remove();
+      return e.preventDefault();
+    });
+    Project.projectSelectDropdown();
+  }
+
+  static projectSelectDropdown () {
+    new ProjectSelect();
+    $('.project-item-select').on('click', e => Project.changeProject($(e.currentTarget).val()));
+  }
+
+  static changeProject(url) {
+    return window.location = url;
+  }
+
+  static initRefSwitcher() {
+    var refListItem = document.createElement('li');
+    var refLink = document.createElement('a');
+
+    refLink.href = '#';
+
+    return $('.js-project-refs-dropdown').each(function() {
+      var $dropdown, selected;
+      $dropdown = $(this);
+      selected = $dropdown.data('selected');
+      return $dropdown.glDropdown({
+        data: function(term, callback) {
+          return $.ajax({
+            url: $dropdown.data('refs-url'),
+            data: {
+              ref: $dropdown.data('ref'),
+              search: term,
+            },
+            dataType: 'json',
+          }).done(function(refs) {
+            return callback(refs);
+          });
+        },
+        selectable: true,
+        filterable: true,
+        filterRemote: true,
+        filterByText: true,
+        inputFieldName: $dropdown.data('input-field-name'),
+        fieldName: $dropdown.data('field-name'),
+        renderRow: function(ref) {
+          var li = refListItem.cloneNode(false);
+
+          if (ref.header != null) {
+            li.className = 'dropdown-header';
+            li.textContent = ref.header;
+          } else {
+            var link = refLink.cloneNode(false);
+
+            if (ref === selected) {
+              link.className = 'is-active';
             }
 
-            return li;
-          },
-          id: function(obj, $el) {
-            return $el.attr('data-ref');
-          },
-          toggleLabel: function(obj, $el) {
-            return $el.text().trim();
-          },
-          clicked: function(options) {
-            const { e } = options;
-            e.preventDefault();
-            if ($('input[name="ref"]').length) {
-              var $form = $dropdown.closest('form');
-
-              var $visit = $dropdown.data('visit');
-              var shouldVisit = $visit ? true : $visit;
-              var action = $form.attr('action');
-              var divider = action.indexOf('?') === -1 ? '?' : '&';
-              if (shouldVisit) {
-                gl.utils.visitUrl(`${action}${divider}${$form.serialize()}`);
-              }
+            link.textContent = ref;
+            link.dataset.ref = ref;
+
+            li.appendChild(link);
+          }
+
+          return li;
+        },
+        id: function(obj, $el) {
+          return $el.attr('data-ref');
+        },
+        toggleLabel: function(obj, $el) {
+          return $el.text().trim();
+        },
+        clicked: function(options) {
+          const { e } = options;
+          e.preventDefault();
+          if ($('input[name="ref"]').length) {
+            var $form = $dropdown.closest('form');
+
+            var $visit = $dropdown.data('visit');
+            var shouldVisit = $visit ? true : $visit;
+            var action = $form.attr('action');
+            var divider = action.indexOf('?') === -1 ? '?' : '&';
+            if (shouldVisit) {
+              gl.utils.visitUrl(`${action}${divider}${$form.serialize()}`);
             }
           }
-        });
+        },
       });
-    };
-
-    return Project;
-  })();
-}).call(window);
+    });
+  }
+}
diff --git a/app/assets/javascripts/project_avatar.js b/app/assets/javascripts/project_avatar.js
index aabdfbf65e2..56627aa155c 100644
--- a/app/assets/javascripts/project_avatar.js
+++ b/app/assets/javascripts/project_avatar.js
@@ -1,20 +1,13 @@
-/* eslint-disable func-names, space-before-function-paren, wrap-iife, no-var, one-var, one-var-declaration-per-line, no-useless-escape, max-len */
-(function() {
-  this.ProjectAvatar = (function() {
-    function ProjectAvatar() {
-      $('.js-choose-project-avatar-button').bind('click', function() {
-        var form;
-        form = $(this).closest('form');
-        return form.find('.js-project-avatar-input').click();
-      });
-      $('.js-project-avatar-input').bind('change', function() {
-        var filename, form;
-        form = $(this).closest('form');
-        filename = $(this).val().replace(/^.*[\\\/]/, '');
-        return form.find('.js-avatar-filename').text(filename);
-      });
-    }
+export default function projectAvatar() {
+  $('.js-choose-project-avatar-button').bind('click', function onClickAvatar() {
+    const form = $(this).closest('form');
+    return form.find('.js-project-avatar-input').click();
+  });
 
-    return ProjectAvatar;
-  })();
-}).call(window);
+  $('.js-project-avatar-input').bind('change', function onClickAvatarInput() {
+    const form = $(this).closest('form');
+    // eslint-disable-next-line no-useless-escape
+    const filename = $(this).val().replace(/^.*[\\\/]/, '');
+    return form.find('.js-avatar-filename').text(filename);
+  });
+}
diff --git a/app/assets/javascripts/project_import.js b/app/assets/javascripts/project_import.js
index 08334bf1ec5..d2d26d6f67e 100644
--- a/app/assets/javascripts/project_import.js
+++ b/app/assets/javascripts/project_import.js
@@ -1,13 +1,8 @@
-/* eslint-disable func-names, space-before-function-paren, wrap-iife, prefer-arrow-callback, max-len */
+import { visitUrl } from './lib/utils/url_utility';
 
-(function() {
-  this.ProjectImport = (function() {
-    function ProjectImport() {
-      setTimeout(function() {
-        return gl.utils.visitUrl(location.href);
-      }, 5000);
-    }
+export default function projectImport() {
+  setTimeout(() => {
+    visitUrl(location.href);
+  }, 5000);
+}
 
-    return ProjectImport;
-  })();
-}).call(window);
diff --git a/app/assets/javascripts/registry/components/table_registry.vue b/app/assets/javascripts/registry/components/table_registry.vue
index e917279947e..14d43e135fe 100644
--- a/app/assets/javascripts/registry/components/table_registry.vue
+++ b/app/assets/javascripts/registry/components/table_registry.vue
@@ -8,6 +8,7 @@
   import tooltip from '../../vue_shared/directives/tooltip';
   import timeagoMixin from '../../vue_shared/mixins/timeago';
   import { errorMessages, errorMessagesTypes } from '../constants';
+  import { numberToHumanSize } from '../../lib/utils/number_utils';
 
   export default {
     props: {
@@ -41,6 +42,10 @@
         return item.layers ? n__('%d layer', '%d layers', item.layers) : '';
       },
 
+      formatSize(size) {
+        return numberToHumanSize(size);
+      },
+
       handleDeleteRegistry(registry) {
         this.deleteRegistry(registry)
           .then(() => this.fetchList({ repo: this.repo }))
@@ -97,7 +102,7 @@
             </span>
         </td>
         <td>
-          {{item.size}}
+          {{formatSize(item.size)}}
           <template v-if="item.size && item.layers">
             &middot;
           </template>
diff --git a/app/assets/javascripts/repo/components/repo_file.vue b/app/assets/javascripts/repo/components/repo_file.vue
index 7a23154b340..5be47d568e7 100644
--- a/app/assets/javascripts/repo/components/repo_file.vue
+++ b/app/assets/javascripts/repo/components/repo_file.vue
@@ -1,11 +1,15 @@
 <script>
   import { mapActions, mapGetters } from 'vuex';
   import timeAgoMixin from '../../vue_shared/mixins/timeago';
+  import skeletonLoadingContainer from '../../vue_shared/components/skeleton_loading_container.vue';
 
   export default {
     mixins: [
       timeAgoMixin,
     ],
+    components: {
+      skeletonLoadingContainer,
+    },
     props: {
       file: {
         type: Object,
@@ -16,6 +20,9 @@
       ...mapGetters([
         'isCollapsed',
       ]),
+      isSubmodule() {
+        return this.file.type === 'submodule';
+      },
       fileIcon() {
         return {
           'fa-spinner fa-spin': this.file.loading,
@@ -31,6 +38,9 @@
       shortId() {
         return this.file.id.substr(0, 8);
       },
+      submoduleColSpan() {
+        return !this.isCollapsed && this.isSubmodule ? 3 : 1;
+      },
     },
     methods: {
       ...mapActions([
@@ -44,7 +54,10 @@
   <tr
     class="file"
     @click.prevent="clickedTreeRow(file)">
-    <td>
+    <td
+      class="multi-file-table-col-name"
+      :colspan="submoduleColSpan"
+    >
       <i
         class="fa fa-fw file-icon"
         :class="fileIcon"
@@ -58,7 +71,7 @@
       >
         {{ file.name }}
       </a>
-      <template v-if="file.type === 'submodule' && file.id">
+      <template v-if="isSubmodule && file.id">
         @
         <span class="commit-sha">
           <a
@@ -71,15 +84,20 @@
       </template>
     </td>
 
-    <template v-if="!isCollapsed">
+    <template v-if="!isCollapsed && !isSubmodule">
       <td class="hidden-sm hidden-xs">
         <a
+          v-if="file.lastCommit.message"
           @click.stop
           :href="file.lastCommit.url"
           class="commit-message"
         >
           {{ file.lastCommit.message }}
         </a>
+        <skeleton-loading-container
+          v-else
+          :small="true"
+        />
       </td>
 
       <td class="commit-update hidden-xs text-right">
@@ -89,6 +107,11 @@
         >
           {{ timeFormated(file.lastCommit.updatedAt) }}
         </span>
+        <skeleton-loading-container
+          v-else
+          class="animation-container-right"
+          :small="true"
+        />
       </td>
     </template>
   </tr>
diff --git a/app/assets/javascripts/repo/components/repo_loading_file.vue b/app/assets/javascripts/repo/components/repo_loading_file.vue
index 1e6c405f292..8fa637d771f 100644
--- a/app/assets/javascripts/repo/components/repo_loading_file.vue
+++ b/app/assets/javascripts/repo/components/repo_loading_file.vue
@@ -1,17 +1,16 @@
 <script>
   import { mapGetters } from 'vuex';
+  import skeletonLoadingContainer from '../../vue_shared/components/skeleton_loading_container.vue';
 
   export default {
+    components: {
+      skeletonLoadingContainer,
+    },
     computed: {
       ...mapGetters([
         'isCollapsed',
       ]),
     },
-    methods: {
-      lineOfCode(n) {
-        return `skeleton-line-${n}`;
-      },
-    },
   };
 </script>
 
@@ -20,37 +19,25 @@
     class="loading-file"
     aria-label="Loading files"
   >
-    <td>
-      <div
-        class="animation-container animation-container-small">
-        <div
-          v-for="n in 6"
-          :key="n"
-          :class="lineOfCode(n)">
-        </div>
-      </div>
+    <td class="multi-file-table-col-name">
+      <skeleton-loading-container
+        :small="true"
+      />
     </td>
     <template v-if="!isCollapsed">
       <td
         class="hidden-sm hidden-xs">
-        <div class="animation-container">
-          <div
-            v-for="n in 6"
-            :key="n"
-            :class="lineOfCode(n)">
-          </div>
-        </div>
+        <skeleton-loading-container
+          :small="true"
+        />
       </td>
 
       <td
         class="hidden-xs">
-        <div class="animation-container animation-container-small animation-container-right">
-          <div
-            v-for="n in 6"
-            :key="n"
-            :class="lineOfCode(n)">
-          </div>
-        </div>
+        <skeleton-loading-container
+          class="animation-container-right"
+          :small="true"
+        />
       </td>
     </template>
   </tr>
diff --git a/app/assets/javascripts/repo/components/repo_sidebar.vue b/app/assets/javascripts/repo/components/repo_sidebar.vue
index 63c0d70f5c0..9365b09326f 100644
--- a/app/assets/javascripts/repo/components/repo_sidebar.vue
+++ b/app/assets/javascripts/repo/components/repo_sidebar.vue
@@ -57,7 +57,7 @@ export default {
           </strong>
         </th>
         <template v-else>
-          <th class="name">
+          <th class="name multi-file-table-col-name">
             Name
           </th>
           <th class="hidden-sm hidden-xs last-commit">
@@ -80,7 +80,7 @@ export default {
       />
       <repo-file
         v-for="(file, index) in treeList"
-        :key="index"
+        :key="file.key"
         :file="file"
       />
     </tbody>
diff --git a/app/assets/javascripts/repo/services/index.js b/app/assets/javascripts/repo/services/index.js
index dc222ccac01..2fb45dcb03c 100644
--- a/app/assets/javascripts/repo/services/index.js
+++ b/app/assets/javascripts/repo/services/index.js
@@ -30,4 +30,11 @@ export default {
   commit(projectId, payload) {
     return Api.commitMultiple(projectId, payload);
   },
+  getTreeLastCommit(endpoint) {
+    return Vue.http.get(endpoint, {
+      params: {
+        format: 'json',
+      },
+    });
+  },
 };
diff --git a/app/assets/javascripts/repo/stores/actions.js b/app/assets/javascripts/repo/stores/actions.js
index ca2f2a5ce7a..120ce96f44d 100644
--- a/app/assets/javascripts/repo/stores/actions.js
+++ b/app/assets/javascripts/repo/stores/actions.js
@@ -3,7 +3,7 @@ import flash from '../../flash';
 import service from '../services';
 import * as types from './mutation_types';
 
-export const redirectToUrl = url => gl.utils.visitUrl(url);
+export const redirectToUrl = (_, url) => gl.utils.visitUrl(url);
 
 export const setInitialData = ({ commit }, data) => commit(types.SET_INITIAL_DATA, data);
 
@@ -64,7 +64,7 @@ export const checkCommitStatus = ({ state }) => service.getBranchData(
   })
   .catch(() => flash('Error checking branch data. Please try again.'));
 
-export const commitChanges = ({ commit, state, dispatch }, { payload, newMr }) =>
+export const commitChanges = ({ commit, state, dispatch, getters }, { payload, newMr }) =>
   service.commit(state.project.id, payload)
   .then((data) => {
     const { branch } = payload;
@@ -73,12 +73,28 @@ export const commitChanges = ({ commit, state, dispatch }, { payload, newMr }) =
       return;
     }
 
+    const lastCommit = {
+      commit_path: `${state.project.url}/commit/${data.id}`,
+      commit: {
+        message: data.message,
+        authored_date: data.committed_date,
+      },
+    };
+
     flash(`Your changes have been committed. Commit ${data.short_id} with ${data.stats.additions} additions, ${data.stats.deletions} deletions.`, 'notice');
 
     if (newMr) {
-      redirectToUrl(`${state.endpoints.newMergeRequestUrl}${branch}`);
+      dispatch('redirectToUrl', `${state.endpoints.newMergeRequestUrl}${branch}`);
     } else {
       commit(types.SET_COMMIT_REF, data.id);
+
+      getters.changedFiles.forEach((entry) => {
+        commit(types.SET_LAST_COMMIT_DATA, {
+          entry,
+          lastCommit,
+        });
+      });
+
       dispatch('discardAllChanges');
       dispatch('closeAllFiles');
       dispatch('toggleEditMode');
diff --git a/app/assets/javascripts/repo/stores/actions/branch.js b/app/assets/javascripts/repo/stores/actions/branch.js
index b81a70dfd1e..61d9a5af3e3 100644
--- a/app/assets/javascripts/repo/stores/actions/branch.js
+++ b/app/assets/javascripts/repo/stores/actions/branch.js
@@ -3,16 +3,16 @@ import * as types from '../mutation_types';
 import { pushState } from '../utils';
 
 // eslint-disable-next-line import/prefer-default-export
-export const createNewBranch = ({ rootState, commit }, branch) => service.createBranch(
-  rootState.project.id,
+export const createNewBranch = ({ state, commit }, branch) => service.createBranch(
+  state.project.id,
   {
     branch,
-    ref: rootState.currentBranch,
+    ref: state.currentBranch,
   },
 ).then(res => res.json())
 .then((data) => {
   const branchName = data.name;
-  const url = location.href.replace(rootState.currentBranch, branchName);
+  const url = location.href.replace(state.currentBranch, branchName);
 
   pushState(url);
 
diff --git a/app/assets/javascripts/repo/stores/actions/file.js b/app/assets/javascripts/repo/stores/actions/file.js
index afbe0b78a82..5bae4fa826a 100644
--- a/app/assets/javascripts/repo/stores/actions/file.js
+++ b/app/assets/javascripts/repo/stores/actions/file.js
@@ -27,6 +27,8 @@ export const closeFile = ({ commit, state, dispatch }, { file, force = false })
   } else if (!state.openFiles.length) {
     pushState(file.parentTreeUrl);
   }
+
+  dispatch('getLastCommitData');
 };
 
 export const setFileActive = ({ commit, state, getters, dispatch }, file) => {
diff --git a/app/assets/javascripts/repo/stores/actions/tree.js b/app/assets/javascripts/repo/stores/actions/tree.js
index 129743c66c2..aa830e946a2 100644
--- a/app/assets/javascripts/repo/stores/actions/tree.js
+++ b/app/assets/javascripts/repo/stores/actions/tree.js
@@ -7,10 +7,11 @@ import {
   setPageTitle,
   findEntry,
   createTemp,
+  createOrMergeEntry,
 } from '../utils';
 
 export const getTreeData = (
-  { commit, state },
+  { commit, state, dispatch },
   { endpoint = state.endpoints.rootEndpoint, tree = state } = {},
 ) => {
   commit(types.TOGGLE_LOADING, tree);
@@ -24,14 +25,20 @@ export const getTreeData = (
       return res.json();
     })
     .then((data) => {
+      const prevLastCommitPath = tree.lastCommitPath;
       if (!state.isInitialRoot) {
         commit(types.SET_ROOT, data.path === '/');
       }
 
-      commit(types.SET_DIRECTORY_DATA, { data, tree });
+      dispatch('updateDirectoryData', { data, tree });
       commit(types.SET_PARENT_TREE_URL, data.parent_tree_url);
+      commit(types.SET_LAST_COMMIT_URL, { tree, url: data.last_commit_path });
       commit(types.TOGGLE_LOADING, tree);
 
+      if (prevLastCommitPath !== null) {
+        dispatch('getLastCommitData', tree);
+      }
+
       pushState(endpoint);
     })
     .catch(() => {
@@ -48,7 +55,7 @@ export const toggleTreeOpen = ({ commit, dispatch }, { endpoint, tree }) => {
     pushState(tree.parentTreeUrl);
 
     commit(types.SET_PREVIOUS_URL, tree.parentTreeUrl);
-    commit(types.SET_DIRECTORY_DATA, { data, tree });
+    dispatch('updateDirectoryData', { data, tree });
   } else {
     commit(types.SET_PREVIOUS_URL, endpoint);
     dispatch('getTreeData', { endpoint, tree });
@@ -108,3 +115,48 @@ export const createTempTree = ({ state, commit, dispatch }, name) => {
     });
   }
 };
+
+export const getLastCommitData = ({ state, commit, dispatch, getters }, tree = state) => {
+  if (tree.lastCommitPath === null || getters.isCollapsed) return;
+
+  service.getTreeLastCommit(tree.lastCommitPath)
+    .then((res) => {
+      const lastCommitPath = normalizeHeaders(res.headers)['MORE-LOGS-URL'] || null;
+
+      commit(types.SET_LAST_COMMIT_URL, { tree, url: lastCommitPath });
+
+      return res.json();
+    })
+    .then((data) => {
+      data.forEach((lastCommit) => {
+        const entry = findEntry(tree, lastCommit.type, lastCommit.file_name);
+
+        if (entry) {
+          commit(types.SET_LAST_COMMIT_DATA, { entry, lastCommit });
+        }
+      });
+
+      dispatch('getLastCommitData', tree);
+    })
+    .catch(() => flash('Error fetching log data.'));
+};
+
+export const updateDirectoryData = ({ commit, state }, { data, tree }) => {
+  const level = tree.level !== undefined ? tree.level + 1 : 0;
+  const parentTreeUrl = data.parent_tree_url ? `${data.parent_tree_url}${data.path}` : state.endpoints.rootUrl;
+  const createEntry = (entry, type) => createOrMergeEntry({
+    tree,
+    entry,
+    level,
+    type,
+    parentTreeUrl,
+  });
+
+  const formattedData = [
+    ...data.trees.map(t => createEntry(t, 'tree')),
+    ...data.submodules.map(m => createEntry(m, 'submodule')),
+    ...data.blobs.map(b => createEntry(b, 'blob')),
+  ];
+
+  commit(types.SET_DIRECTORY_DATA, { tree, data: formattedData });
+};
diff --git a/app/assets/javascripts/repo/stores/mutation_types.js b/app/assets/javascripts/repo/stores/mutation_types.js
index 4722a7dd0df..bc3390f1506 100644
--- a/app/assets/javascripts/repo/stores/mutation_types.js
+++ b/app/assets/javascripts/repo/stores/mutation_types.js
@@ -4,11 +4,13 @@ export const SET_COMMIT_REF = 'SET_COMMIT_REF';
 export const SET_PARENT_TREE_URL = 'SET_PARENT_TREE_URL';
 export const SET_ROOT = 'SET_ROOT';
 export const SET_PREVIOUS_URL = 'SET_PREVIOUS_URL';
+export const SET_LAST_COMMIT_DATA = 'SET_LAST_COMMIT_DATA';
 
 // Tree mutation types
 export const SET_DIRECTORY_DATA = 'SET_DIRECTORY_DATA';
 export const TOGGLE_TREE_OPEN = 'TOGGLE_TREE_OPEN';
 export const CREATE_TMP_TREE = 'CREATE_TMP_TREE';
+export const SET_LAST_COMMIT_URL = 'SET_LAST_COMMIT_URL';
 
 // File mutation types
 export const SET_FILE_DATA = 'SET_FILE_DATA';
diff --git a/app/assets/javascripts/repo/stores/mutations.js b/app/assets/javascripts/repo/stores/mutations.js
index 2f9b038322b..ae2ba5bedf7 100644
--- a/app/assets/javascripts/repo/stores/mutations.js
+++ b/app/assets/javascripts/repo/stores/mutations.js
@@ -48,6 +48,13 @@ export default {
       previousUrl,
     });
   },
+  [types.SET_LAST_COMMIT_DATA](state, { entry, lastCommit }) {
+    Object.assign(entry.lastCommit, {
+      url: lastCommit.commit_path,
+      message: lastCommit.commit.message,
+      updatedAt: lastCommit.commit.authored_date,
+    });
+  },
   ...fileMutations,
   ...treeMutations,
   ...branchMutations,
diff --git a/app/assets/javascripts/repo/stores/mutations/tree.js b/app/assets/javascripts/repo/stores/mutations/tree.js
index 52be2673107..130221c9fda 100644
--- a/app/assets/javascripts/repo/stores/mutations/tree.js
+++ b/app/assets/javascripts/repo/stores/mutations/tree.js
@@ -1,5 +1,4 @@
 import * as types from '../mutation_types';
-import * as utils from '../utils';
 
 export default {
   [types.TOGGLE_TREE_OPEN](state, tree) {
@@ -8,30 +7,8 @@ export default {
     });
   },
   [types.SET_DIRECTORY_DATA](state, { data, tree }) {
-    const level = tree.level !== undefined ? tree.level + 1 : 0;
-    const parentTreeUrl = data.parent_tree_url ? `${data.parent_tree_url}${data.path}` : state.endpoints.rootUrl;
-
     Object.assign(tree, {
-      tree: [
-        ...data.trees.map(t => utils.decorateData({
-          ...t,
-          type: 'tree',
-          parentTreeUrl,
-          level,
-        }, state.project.url)),
-        ...data.submodules.map(m => utils.decorateData({
-          ...m,
-          type: 'submodule',
-          parentTreeUrl,
-          level,
-        }, state.project.url)),
-        ...data.blobs.map(b => utils.decorateData({
-          ...b,
-          type: 'blob',
-          parentTreeUrl,
-          level,
-        }, state.project.url)),
-      ],
+      tree: data,
     });
   },
   [types.SET_PARENT_TREE_URL](state, url) {
@@ -39,6 +16,11 @@ export default {
       parentTreeUrl: url,
     });
   },
+  [types.SET_LAST_COMMIT_URL](state, { tree = state, url }) {
+    Object.assign(tree, {
+      lastCommitPath: url,
+    });
+  },
   [types.CREATE_TMP_TREE](state, { parent, tmpEntry }) {
     parent.tree.push(tmpEntry);
   },
diff --git a/app/assets/javascripts/repo/stores/state.js b/app/assets/javascripts/repo/stores/state.js
index aab74754f02..0068834831e 100644
--- a/app/assets/javascripts/repo/stores/state.js
+++ b/app/assets/javascripts/repo/stores/state.js
@@ -8,6 +8,7 @@ export default () => ({
   endpoints: {},
   isRoot: false,
   isInitialRoot: false,
+  lastCommitPath: '',
   loading: false,
   onTopOfBranch: false,
   openFiles: [],
diff --git a/app/assets/javascripts/repo/stores/utils.js b/app/assets/javascripts/repo/stores/utils.js
index 797c2b1e5b9..fae1f4439a9 100644
--- a/app/assets/javascripts/repo/stores/utils.js
+++ b/app/assets/javascripts/repo/stores/utils.js
@@ -1,5 +1,6 @@
 export const dataStructure = () => ({
   id: '',
+  key: '',
   type: '',
   name: '',
   url: '',
@@ -12,7 +13,12 @@ export const dataStructure = () => ({
   opened: false,
   active: false,
   changed: false,
-  lastCommit: {},
+  lastCommitPath: '',
+  lastCommit: {
+    url: '',
+    message: '',
+    updatedAt: '',
+  },
   tree_url: '',
   blamePath: '',
   commitsPath: '',
@@ -27,14 +33,13 @@ export const dataStructure = () => ({
   base64: false,
 });
 
-export const decorateData = (entity, projectUrl = '') => {
+export const decorateData = (entity) => {
   const {
     id,
     type,
     url,
     name,
     icon,
-    last_commit,
     tree_url,
     path,
     renderError,
@@ -51,6 +56,7 @@ export const decorateData = (entity, projectUrl = '') => {
   return {
     ...dataStructure(),
     id,
+    key: `${name}-${type}-${id}`,
     type,
     name,
     url,
@@ -66,12 +72,6 @@ export const decorateData = (entity, projectUrl = '') => {
     renderError,
     content,
     base64,
-    // eslint-disable-next-line camelcase
-    lastCommit: last_commit ? {
-      url: `${projectUrl}/commit/${last_commit.id}`,
-      message: last_commit.message,
-      updatedAt: last_commit.committed_date,
-    } : {},
   };
 };
 
@@ -106,3 +106,22 @@ export const createTemp = ({ name, path, type, level, changed, content, base64 }
     renderError: base64,
   });
 };
+
+export const createOrMergeEntry = ({ tree, entry, type, parentTreeUrl, level }) => {
+  const found = findEntry(tree, type, entry.name);
+
+  if (found) {
+    return Object.assign({}, found, {
+      id: entry.id,
+      url: entry.url,
+      tempFile: false,
+    });
+  }
+
+  return decorateData({
+    ...entry,
+    type,
+    parentTreeUrl,
+    level,
+  });
+};
diff --git a/app/assets/javascripts/search_autocomplete.js b/app/assets/javascripts/search_autocomplete.js
index f15452ec683..9dec5d7645a 100644
--- a/app/assets/javascripts/search_autocomplete.js
+++ b/app/assets/javascripts/search_autocomplete.js
@@ -162,13 +162,19 @@ import { isInGroupsPage, isInProjectPage, getGroupSlug, getProjectSlug } from '.
       items = [
         {
           header: "" + name
-        }, {
+        }
+      ];
+      const issueItems = [
+        {
           text: 'Issues assigned to me',
           url: issuesPath + "/?assignee_username=" + userName
         }, {
           text: "Issues I've created",
           url: issuesPath + "/?author_username=" + userName
-        }, 'separator', {
+        }
+      ];
+      const mergeRequestItems = [
+        {
           text: 'Merge requests assigned to me',
           url: mrPath + "/?assignee_username=" + userName
         }, {
@@ -176,6 +182,11 @@ import { isInGroupsPage, isInProjectPage, getGroupSlug, getProjectSlug } from '.
           url: mrPath + "/?author_username=" + userName
         }
       ];
+      if (options.issuesDisabled) {
+        items = items.concat(mergeRequestItems);
+      } else {
+        items = items.concat(...issueItems, 'separator', ...mergeRequestItems);
+      }
       if (!name) {
         items.splice(0, 1);
       }
@@ -408,6 +419,7 @@ import { isInGroupsPage, isInProjectPage, getGroupSlug, getProjectSlug } from '.
       gl.projectOptions[projectPath] = {
         name: $projectOptionsDataEl.data('name'),
         issuesPath: $projectOptionsDataEl.data('issues-path'),
+        issuesDisabled: $projectOptionsDataEl.data('issues-disabled'),
         mrPath: $projectOptionsDataEl.data('mr-path')
       };
     }
diff --git a/app/assets/javascripts/shortcuts_issuable.js b/app/assets/javascripts/shortcuts_issuable.js
index fc97938e3d1..4f4f606d293 100644
--- a/app/assets/javascripts/shortcuts_issuable.js
+++ b/app/assets/javascripts/shortcuts_issuable.js
@@ -4,6 +4,7 @@
 import _ from 'underscore';
 import 'mousetrap';
 import ShortcutsNavigation from './shortcuts_navigation';
+import { CopyAsGFM } from './behaviors/copy_as_gfm';
 
 export default class ShortcutsIssuable extends ShortcutsNavigation {
   constructor(isMergeRequest) {
@@ -33,8 +34,8 @@ export default class ShortcutsIssuable extends ShortcutsNavigation {
       return false;
     }
 
-    const el = window.gl.CopyAsGFM.transformGFMSelection(documentFragment.cloneNode(true));
-    const selected = window.gl.CopyAsGFM.nodeToGFM(el);
+    const el = CopyAsGFM.transformGFMSelection(documentFragment.cloneNode(true));
+    const selected = CopyAsGFM.nodeToGFM(el);
 
     if (selected.trim() === '') {
       return false;
diff --git a/app/assets/javascripts/sidebar/components/confidential/confidential_issue_sidebar.vue b/app/assets/javascripts/sidebar/components/confidential/confidential_issue_sidebar.vue
index 22a9a34dda3..6ee4d487c0b 100644
--- a/app/assets/javascripts/sidebar/components/confidential/confidential_issue_sidebar.vue
+++ b/app/assets/javascripts/sidebar/components/confidential/confidential_issue_sidebar.vue
@@ -1,10 +1,12 @@
 <script>
 import Flash from '../../../flash';
 import editForm from './edit_form.vue';
+import Icon from '../../../vue_shared/components/icon.vue';
 
 export default {
   components: {
     editForm,
+    Icon,
   },
   props: {
     isConfidential: {
@@ -26,11 +28,8 @@ export default {
     };
   },
   computed: {
-    faEye() {
-      const eye = this.isConfidential ? 'fa-eye-slash' : 'fa-eye';
-      return {
-        [eye]: true,
-      };
+    confidentialityIcon() {
+      return this.isConfidential ? 'eye-slash' : 'eye';
     },
   },
   methods: {
@@ -49,7 +48,11 @@ export default {
 <template>
   <div class="block issuable-sidebar-item confidentiality">
     <div class="sidebar-collapsed-icon">
-      <i class="fa" :class="faEye" aria-hidden="true"></i>
+      <icon
+        :name="confidentialityIcon"
+        :size="16"
+        aria-hidden="true">
+      </icon>
     </div>
     <div class="title hide-collapsed">
       Confidentiality
@@ -70,11 +73,21 @@ export default {
         :update-confidential-attribute="updateConfidentialAttribute"
       />
       <div v-if="!isConfidential" class="no-value sidebar-item-value">
-        <i class="fa fa-eye sidebar-item-icon"></i>
+        <icon
+          name="eye"
+          :size="16"
+          aria-hidden="true"
+          class="sidebar-item-icon inline">
+        </icon>
         Not confidential
       </div>
       <div v-else class="value sidebar-item-value hide-collapsed">
-        <i aria-hidden="true" class="fa fa-eye-slash sidebar-item-icon is-active"></i>
+        <icon
+          name="eye-slash"
+          :size="16"
+          aria-hidden="true"
+          class="sidebar-item-icon inline is-active">
+        </icon>
         This issue is confidential
       </div>
     </div>
diff --git a/app/assets/javascripts/sidebar/components/lock/lock_issue_sidebar.vue b/app/assets/javascripts/sidebar/components/lock/lock_issue_sidebar.vue
index c4b2900e020..9aff53cf8af 100644
--- a/app/assets/javascripts/sidebar/components/lock/lock_issue_sidebar.vue
+++ b/app/assets/javascripts/sidebar/components/lock/lock_issue_sidebar.vue
@@ -2,6 +2,7 @@
 /* global Flash */
 import editForm from './edit_form.vue';
 import issuableMixin from '../../../vue_shared/mixins/issuable';
+import Icon from '../../../vue_shared/components/icon.vue';
 
 export default {
   props: {
@@ -35,11 +36,12 @@ export default {
 
   components: {
     editForm,
+    Icon,
   },
 
   computed: {
-    lockIconClass() {
-      return this.isLocked ? 'fa-lock' : 'fa-unlock';
+    lockIcon() {
+      return this.isLocked ? 'lock' : 'lock-open';
     },
 
     isLockDialogOpen() {
@@ -66,11 +68,12 @@ export default {
 <template>
   <div class="block issuable-sidebar-item lock">
     <div class="sidebar-collapsed-icon">
-      <i
-        class="fa"
-        :class="lockIconClass"
+      <icon
+        :name="lockIcon"
+        :size="16"
         aria-hidden="true"
-      ></i>
+        class="sidebar-item-icon is-active">
+      </icon>
     </div>
 
     <div class="title hide-collapsed">
@@ -98,10 +101,12 @@ export default {
         v-if="isLocked"
         class="value sidebar-item-value"
       >
-        <i
+        <icon
+          name="lock"
+          :size="16"
           aria-hidden="true"
-          class="fa fa-lock sidebar-item-icon is-active"
-        ></i>
+          class="sidebar-item-icon inline is-active">
+        </icon>
         {{ __('Locked') }}
       </div>
 
@@ -109,10 +114,12 @@ export default {
         v-else
         class="no-value sidebar-item-value hide-collapsed"
       >
-        <i
+        <icon
+          name="lock-open"
+          :size="16"
           aria-hidden="true"
-          class="fa fa-unlock sidebar-item-icon"
-        ></i>
+          class="sidebar-item-icon inline">
+        </icon>
         {{ __('Unlocked') }}
       </div>
     </div>
diff --git a/app/assets/javascripts/smart_interval.js b/app/assets/javascripts/smart_interval.js
index 2bf7a3a5d61..8e931995fc6 100644
--- a/app/assets/javascripts/smart_interval.js
+++ b/app/assets/javascripts/smart_interval.js
@@ -3,9 +3,10 @@
  * and controllable by a public API.
  */
 
-class SmartInterval {
+export default class SmartInterval {
   /**
-   * @param { function } opts.callback Function to be called on each iteration (required)
+   * @param { function } opts.callback Function that returns a promise, called on each iteration
+   *                     unless still in progress (required)
    * @param { milliseconds } opts.startingInterval `currentInterval` is set to this initially
    * @param { milliseconds } opts.maxInterval `currentInterval` will be incremented to this
    * @param { milliseconds } opts.hiddenInterval `currentInterval` is set to this
@@ -42,13 +43,16 @@ class SmartInterval {
     const cfg = this.cfg;
     const state = this.state;
 
-    if (cfg.immediateExecution) {
+    if (cfg.immediateExecution && !this.isLoading) {
       cfg.immediateExecution = false;
-      cfg.callback();
+      this.triggerCallback();
     }
 
     state.intervalId = window.setInterval(() => {
-      cfg.callback();
+      if (this.isLoading) {
+        return;
+      }
+      this.triggerCallback();
 
       if (this.getCurrentInterval() === cfg.maxInterval) {
         return;
@@ -76,7 +80,7 @@ class SmartInterval {
 
   // start a timer, using the existing interval
   resume() {
-    this.stopTimer(); // stop exsiting timer, in case timer was not previously stopped
+    this.stopTimer(); // stop existing timer, in case timer was not previously stopped
     this.start();
   }
 
@@ -104,6 +108,18 @@ class SmartInterval {
     this.initPageUnloadHandling();
   }
 
+  triggerCallback() {
+    this.isLoading = true;
+    this.cfg.callback()
+      .then(() => {
+        this.isLoading = false;
+      })
+      .catch((err) => {
+        this.isLoading = false;
+        throw err;
+      });
+  }
+
   initVisibilityChangeHandling() {
     // cancel interval when tab no longer shown (prevents cached pages from polling)
     document.addEventListener('visibilitychange', this.handleVisibilityChange.bind(this));
@@ -154,4 +170,3 @@ class SmartInterval {
   }
 }
 
-window.gl.SmartInterval = SmartInterval;
diff --git a/app/assets/javascripts/users_select.js b/app/assets/javascripts/users_select.js
index a0883b32593..759cc9925f4 100644
--- a/app/assets/javascripts/users_select.js
+++ b/app/assets/javascripts/users_select.js
@@ -6,7 +6,7 @@ import _ from 'underscore';
 // TODO: remove eventHub hack after code splitting refactor
 window.emitSidebarEvent = window.emitSidebarEvent || $.noop;
 
-function UsersSelect(currentUser, els) {
+function UsersSelect(currentUser, els, options = {}) {
   var $els;
   this.users = this.users.bind(this);
   this.user = this.user.bind(this);
@@ -20,6 +20,8 @@ function UsersSelect(currentUser, els) {
     }
   }
 
+  const { handleClick } = options;
+
   $els = $(els);
 
   if (!els) {
@@ -442,6 +444,9 @@ function UsersSelect(currentUser, els) {
           }
           if ($el.closest('.add-issues-modal').length) {
             gl.issueBoards.ModalStore.store.filter[$dropdown.data('field-name')] = user.id;
+          } else if (handleClick) {
+            e.preventDefault();
+            handleClick(user, isMarking);
           } else if ($dropdown.hasClass('js-filter-submit') && (isIssueIndex || isMRIndex)) {
             return Issuable.filterResults($dropdown.closest('form'));
           } else if ($dropdown.hasClass('js-filter-submit')) {
diff --git a/app/assets/javascripts/vue_merge_request_widget/components/mr_widget_header.js b/app/assets/javascripts/vue_merge_request_widget/components/mr_widget_header.js
index 219ff94924e..13e4cb5717e 100644
--- a/app/assets/javascripts/vue_merge_request_widget/components/mr_widget_header.js
+++ b/app/assets/javascripts/vue_merge_request_widget/components/mr_widget_header.js
@@ -1,5 +1,5 @@
 import tooltip from '../../vue_shared/directives/tooltip';
-import '../../lib/utils/text_utility';
+import { pluralize } from '../../lib/utils/text_utility';
 
 export default {
   name: 'MRWidgetHeader',
@@ -14,7 +14,7 @@ export default {
       return this.mr.divergedCommitsCount > 0;
     },
     commitsText() {
-      return gl.text.pluralize('commit', this.mr.divergedCommitsCount);
+      return pluralize('commit', this.mr.divergedCommitsCount);
     },
     branchNameClipboardData() {
       // This supports code in app/assets/javascripts/copy_to_clipboard.js that
diff --git a/app/assets/javascripts/vue_merge_request_widget/components/mr_widget_pipeline.js b/app/assets/javascripts/vue_merge_request_widget/components/mr_widget_pipeline.js
deleted file mode 100644
index 029832bdd27..00000000000
--- a/app/assets/javascripts/vue_merge_request_widget/components/mr_widget_pipeline.js
+++ /dev/null
@@ -1,90 +0,0 @@
-import PipelineStage from '../../pipelines/components/stage.vue';
-import ciIcon from '../../vue_shared/components/ci_icon.vue';
-import icon from '../../vue_shared/components/icon.vue';
-
-export default {
-  name: 'MRWidgetPipeline',
-  props: {
-    mr: { type: Object, required: true },
-  },
-  components: {
-    'pipeline-stage': PipelineStage,
-    ciIcon,
-    icon,
-  },
-  computed: {
-    hasPipeline() {
-      return this.mr.pipeline && Object.keys(this.mr.pipeline).length > 0;
-    },
-    hasCIError() {
-      const { hasCI, ciStatus } = this.mr;
-
-      return hasCI && !ciStatus;
-    },
-    stageText() {
-      return this.mr.pipeline.details.stages.length > 1 ? 'stages' : 'stage';
-    },
-    status() {
-      return this.mr.pipeline.details.status || {};
-    },
-  },
-  template: `
-    <div
-      v-if="hasPipeline || hasCIError"
-      class="mr-widget-heading">
-      <div class="ci-widget media">
-        <template v-if="hasCIError">
-          <div class="ci-status-icon ci-status-icon-failed ci-error js-ci-error append-right-10">
-            <span
-              aria-hidden="true">
-              <icon
-                name="status_failed"/>
-            </span>
-          </div>
-          <div class="media-body">
-            Could not connect to the CI server. Please check your settings and try again
-          </div>
-        </template>
-        <template v-else-if="hasPipeline">
-          <div class="ci-status-icon append-right-10">
-            <a
-              class="icon-link"
-              :href="this.status.details_path">
-              <ci-icon :status="status" />
-            </a>
-          </div>
-          <div class="media-body">
-            <span>
-              Pipeline
-              <a
-                :href="mr.pipeline.path"
-                class="pipeline-id">#{{mr.pipeline.id}}</a>
-            </span>
-            <span class="mr-widget-pipeline-graph">
-              <span class="stage-cell">
-                <div
-                  v-if="mr.pipeline.details.stages.length > 0"
-                  v-for="stage in mr.pipeline.details.stages"
-                  class="stage-container dropdown js-mini-pipeline-graph">
-                  <pipeline-stage :stage="stage" />
-                </div>
-              </span>
-            </span>
-            <span>
-              {{mr.pipeline.details.status.label}} for
-              <a
-                :href="mr.pipeline.commit.commit_path"
-                class="commit-sha js-commit-link">
-                {{mr.pipeline.commit.short_id}}</a>.
-            </span>
-            <span
-              v-if="mr.pipeline.coverage"
-              class="js-mr-coverage">
-              Coverage {{mr.pipeline.coverage}}%
-            </span>
-          </div>
-        </template>
-      </div>
-    </div>
-  `,
-};
diff --git a/app/assets/javascripts/vue_merge_request_widget/components/mr_widget_pipeline.vue b/app/assets/javascripts/vue_merge_request_widget/components/mr_widget_pipeline.vue
new file mode 100644
index 00000000000..dbc65462377
--- /dev/null
+++ b/app/assets/javascripts/vue_merge_request_widget/components/mr_widget_pipeline.vue
@@ -0,0 +1,104 @@
+<script>
+  import pipelineStage from '../../pipelines/components/stage.vue';
+  import ciIcon from '../../vue_shared/components/ci_icon.vue';
+  import icon from '../../vue_shared/components/icon.vue';
+
+  export default {
+    name: 'MRWidgetPipeline',
+    props: {
+      pipeline: {
+        type: Object,
+        required: true,
+      },
+      // This prop needs to be camelCase, html attributes are case insensive
+      // https://vuejs.org/v2/guide/components.html#camelCase-vs-kebab-case
+      hasCi: {
+        type: Boolean,
+        required: false,
+      },
+      ciStatus: {
+        type: String,
+        required: false,
+      },
+    },
+    components: {
+      pipelineStage,
+      ciIcon,
+      icon,
+    },
+    computed: {
+      hasPipeline() {
+        return this.pipeline && Object.keys(this.pipeline).length > 0;
+      },
+      hasCIError() {
+        return this.hasCi && !this.ciStatus;
+      },
+      status() {
+        return this.pipeline.details &&
+          this.pipeline.details.status ? this.pipeline.details.status : {};
+      },
+      hasStages() {
+        return this.pipeline.details &&
+          this.pipeline.details.stages &&
+          this.pipeline.details.stages.length;
+      },
+    },
+  };
+</script>
+
+<template>
+  <div
+    v-if="hasPipeline || hasCIError"
+    class="mr-widget-heading">
+    <div class="ci-widget media">
+      <template v-if="hasCIError">
+        <div class="ci-status-icon ci-status-icon-failed ci-error js-ci-error append-right-10">
+          <icon name="status_failed" />
+        </div>
+        <div class="media-body">
+          Could not connect to the CI server. Please check your settings and try again
+        </div>
+      </template>
+      <template v-else-if="hasPipeline">
+        <a
+          class="append-right-10"
+          :href="this.status.details_path">
+          <ci-icon :status="status" />
+        </a>
+
+        <div class="media-body">
+          Pipeline
+          <a
+            :href="pipeline.path"
+            class="pipeline-id">
+            #{{pipeline.id}}
+          </a>
+
+          {{pipeline.details.status.label}} for
+
+          <a
+            :href="pipeline.commit.commit_path"
+            class="commit-sha js-commit-link">
+            {{pipeline.commit.short_id}}</a>.
+
+          <span class="mr-widget-pipeline-graph">
+            <span class="stage-cell">
+              <div
+                v-if="hasStages"
+                v-for="(stage, i) in pipeline.details.stages"
+                :key="i"
+                class="stage-container dropdown js-mini-pipeline-graph">
+                <pipeline-stage :stage="stage" />
+              </div>
+            </span>
+          </span>
+
+          <template v-if="pipeline.coverage">
+            Coverage {{pipeline.coverage}}%
+          </template>
+
+        </div>
+      </template>
+    </div>
+  </div>
+</template>
diff --git a/app/assets/javascripts/vue_merge_request_widget/dependencies.js b/app/assets/javascripts/vue_merge_request_widget/dependencies.js
index 49340c232c8..5bd8b99420a 100644
--- a/app/assets/javascripts/vue_merge_request_widget/dependencies.js
+++ b/app/assets/javascripts/vue_merge_request_widget/dependencies.js
@@ -13,7 +13,7 @@ export { default as Vue } from 'vue';
 export { default as SmartInterval } from '~/smart_interval';
 export { default as WidgetHeader } from './components/mr_widget_header';
 export { default as WidgetMergeHelp } from './components/mr_widget_merge_help';
-export { default as WidgetPipeline } from './components/mr_widget_pipeline';
+export { default as WidgetPipeline } from './components/mr_widget_pipeline.vue';
 export { default as WidgetDeployment } from './components/mr_widget_deployment';
 export { default as WidgetRelatedLinks } from './components/mr_widget_related_links';
 export { default as MergedState } from './components/states/mr_widget_merged';
diff --git a/app/assets/javascripts/vue_merge_request_widget/mr_widget_options.js b/app/assets/javascripts/vue_merge_request_widget/mr_widget_options.js
index 4f497b204a3..1274db2c4c8 100644
--- a/app/assets/javascripts/vue_merge_request_widget/mr_widget_options.js
+++ b/app/assets/javascripts/vue_merge_request_widget/mr_widget_options.js
@@ -1,3 +1,4 @@
+import SmartInterval from '~/smart_interval';
 import Flash from '../flash';
 import {
   WidgetHeader,
@@ -60,7 +61,7 @@ export default {
       return this.mr.hasCI;
     },
     shouldRenderRelatedLinks() {
-      return this.mr.relatedLinks;
+      return !!this.mr.relatedLinks;
     },
     shouldRenderDeployments() {
       return this.mr.deployments.length;
@@ -81,7 +82,7 @@ export default {
       return new MRWidgetService(endpoints);
     },
     checkStatus(cb) {
-      this.service.checkStatus()
+      return this.service.checkStatus()
         .then(res => res.json())
         .then((res) => {
           this.handleNotification(res);
@@ -97,7 +98,7 @@ export default {
         });
     },
     initPolling() {
-      this.pollingInterval = new gl.SmartInterval({
+      this.pollingInterval = new SmartInterval({
         callback: this.checkStatus,
         startingInterval: 10000,
         maxInterval: 30000,
@@ -106,7 +107,7 @@ export default {
       });
     },
     initDeploymentsPolling() {
-      this.deploymentsInterval = new gl.SmartInterval({
+      this.deploymentsInterval = new SmartInterval({
         callback: this.fetchDeployments,
         startingInterval: 30000,
         maxInterval: 120000,
@@ -121,7 +122,7 @@ export default {
       }
     },
     fetchDeployments() {
-      this.service.fetchDeployments()
+      return this.service.fetchDeployments()
         .then(res => res.json())
         .then((res) => {
           if (res.length) {
@@ -235,7 +236,10 @@ export default {
       <mr-widget-header :mr="mr" />
       <mr-widget-pipeline
         v-if="shouldRenderPipelines"
-        :mr="mr" />
+        :pipeline="mr.pipeline"
+        :ci-status="mr.ciStatus"
+        :has-ci="mr.hasCI"
+        />
       <mr-widget-deployment
         v-if="shouldRenderDeployments"
         :mr="mr"
diff --git a/app/assets/javascripts/vue_shared/components/issue/issue_warning.vue b/app/assets/javascripts/vue_shared/components/issue/issue_warning.vue
index 16c0a8efcd2..564fc5029af 100644
--- a/app/assets/javascripts/vue_shared/components/issue/issue_warning.vue
+++ b/app/assets/javascripts/vue_shared/components/issue/issue_warning.vue
@@ -1,4 +1,6 @@
 <script>
+  import Icon from '../../../vue_shared/components/icon.vue';
+
   export default {
     props: {
       isLocked: {
@@ -14,12 +16,16 @@
       },
     },
 
+    components: {
+      Icon,
+    },
+
     computed: {
-      iconClass() {
-        return {
-          'fa-eye-slash': this.isConfidential,
-          'fa-lock': this.isLocked,
-        };
+      warningIcon() {
+        if (this.isConfidential) return 'eye-slash';
+        if (this.isLocked) return 'lock';
+
+        return '';
       },
 
       isLockedAndConfidential() {
@@ -30,12 +36,13 @@
 </script>
 <template>
   <div class="issuable-note-warning">
-    <i
-      aria-hidden="true"
-      class="fa icon"
-      :class="iconClass"
-      v-if="!isLockedAndConfidential"
-    ></i>
+    <icon
+        :name="warningIcon"
+        :size="16"
+        class="icon inline"
+        aria-hidden="true"
+        v-if="!isLockedAndConfidential">
+    </icon>
 
     <span v-if="isLockedAndConfidential">
       {{ __('This issue is confidential and locked.') }}
diff --git a/app/assets/javascripts/vue_shared/components/loading_button.vue b/app/assets/javascripts/vue_shared/components/loading_button.vue
index 6670b554faf..247943f83e6 100644
--- a/app/assets/javascripts/vue_shared/components/loading_button.vue
+++ b/app/assets/javascripts/vue_shared/components/loading_button.vue
@@ -26,10 +26,20 @@ export default {
       required: false,
       default: false,
     },
+    disabled: {
+      type: Boolean,
+      required: false,
+      default: false,
+    },
     label: {
       type: String,
       required: false,
     },
+    containerClass: {
+      type: String,
+      required: false,
+      default: 'btn btn-align-content',
+    },
   },
   components: {
     loadingIcon,
@@ -44,10 +54,10 @@ export default {
 
 <template>
   <button
-    class="btn btn-align-content"
     @click="onClick"
     type="button"
-    :disabled="loading"
+    :class="containerClass"
+    :disabled="loading || disabled"
   >
       <transition name="fade">
         <loading-icon
diff --git a/app/assets/javascripts/vue_shared/components/markdown/field.vue b/app/assets/javascripts/vue_shared/components/markdown/field.vue
index 6511828e982..a873e00d0f3 100644
--- a/app/assets/javascripts/vue_shared/components/markdown/field.vue
+++ b/app/assets/javascripts/vue_shared/components/markdown/field.vue
@@ -47,8 +47,10 @@
       },
     },
     methods: {
-      toggleMarkdownPreview() {
-        this.previewMarkdown = !this.previewMarkdown;
+      showPreviewTab() {
+        if (this.previewMarkdown) return;
+
+        this.previewMarkdown = true;
 
         /*
           Can't use `$refs` as the component is technically in the parent component
@@ -56,20 +58,22 @@
         */
         const text = this.$slots.textarea[0].elm.value;
 
-        if (!this.previewMarkdown) {
-          this.markdownPreview = '';
-        } else if (text) {
+        if (text) {
           this.markdownPreviewLoading = true;
           this.$http.post(this.markdownPreviewPath, { text })
             .then(resp => resp.json())
-            .then((data) => {
-              this.renderMarkdown(data);
-            })
+            .then(data => this.renderMarkdown(data))
             .catch(() => new Flash('Error loading markdown preview'));
         } else {
           this.renderMarkdown();
         }
       },
+
+      showWriteTab() {
+        this.markdownPreview = '';
+        this.previewMarkdown = false;
+      },
+
       renderMarkdown(data = {}) {
         this.markdownPreviewLoading = false;
         this.markdownPreview = data.body || 'Nothing to preview.';
@@ -106,7 +110,8 @@
     ref="gl-form">
     <markdown-header
       :preview-markdown="previewMarkdown"
-      @toggle-markdown="toggleMarkdownPreview" />
+      @preview-markdown="showPreviewTab"
+      @write-markdown="showWriteTab" />
     <div
       class="md-write-holder"
       v-show="!previewMarkdown">
diff --git a/app/assets/javascripts/vue_shared/components/markdown/header.vue b/app/assets/javascripts/vue_shared/components/markdown/header.vue
index 7541731083b..70f5fc1d664 100644
--- a/app/assets/javascripts/vue_shared/components/markdown/header.vue
+++ b/app/assets/javascripts/vue_shared/components/markdown/header.vue
@@ -18,23 +18,31 @@
       icon,
     },
     methods: {
-      toggleMarkdownPreview(e, form) {
-        if (form && !form.find('.js-vue-markdown-field').length) {
-          return;
-        } else if (e.target.blur) {
-          e.target.blur();
-        }
+      isMarkdownForm(form) {
+        return form && !form.find('.js-vue-markdown-field').length;
+      },
+
+      previewMarkdownTab(event, form) {
+        if (event.target.blur) event.target.blur();
+        if (this.isMarkdownForm(form)) return;
+
+        this.$emit('preview-markdown');
+      },
+
+      writeMarkdownTab(event, form) {
+        if (event.target.blur) event.target.blur();
+        if (this.isMarkdownForm(form)) return;
 
-        this.$emit('toggle-markdown');
+        this.$emit('write-markdown');
       },
     },
     mounted() {
-      $(document).on('markdown-preview:show.vue', this.toggleMarkdownPreview);
-      $(document).on('markdown-preview:hide.vue', this.toggleMarkdownPreview);
+      $(document).on('markdown-preview:show.vue', this.previewMarkdownTab);
+      $(document).on('markdown-preview:hide.vue', this.writeMarkdownTab);
     },
     beforeDestroy() {
-      $(document).on('markdown-preview:show.vue', this.toggleMarkdownPreview);
-      $(document).off('markdown-preview:hide.vue', this.toggleMarkdownPreview);
+      $(document).off('markdown-preview:show.vue', this.previewMarkdownTab);
+      $(document).off('markdown-preview:hide.vue', this.writeMarkdownTab);
     },
   };
 </script>
@@ -44,17 +52,19 @@
     <ul class="nav-links clearfix">
       <li :class="{ active: !previewMarkdown }">
         <a
+          class="js-write-link"
           href="#md-write-holder"
           tabindex="-1"
-          @click.prevent="toggleMarkdownPreview($event)">
+          @click.prevent="writeMarkdownTab($event)">
           Write
         </a>
       </li>
       <li :class="{ active: previewMarkdown }">
         <a
+          class="js-preview-link"
           href="#md-preview-holder"
           tabindex="-1"
-          @click.prevent="toggleMarkdownPreview($event)">
+          @click.prevent="previewMarkdownTab($event)">
           Preview
         </a>
       </li>
diff --git a/app/assets/javascripts/vue_shared/components/popup_dialog.vue b/app/assets/javascripts/vue_shared/components/popup_dialog.vue
index 9e8c10bdc1a..47efee64c6e 100644
--- a/app/assets/javascripts/vue_shared/components/popup_dialog.vue
+++ b/app/assets/javascripts/vue_shared/components/popup_dialog.vue
@@ -5,17 +5,27 @@ export default {
   props: {
     title: {
       type: String,
-      required: true,
+      required: false,
     },
     text: {
       type: String,
       required: false,
     },
+    hideFooter: {
+      type: Boolean,
+      required: false,
+      default: false,
+    },
     kind: {
       type: String,
       required: false,
       default: 'primary',
     },
+    modalDialogClass: {
+      type: String,
+      required: false,
+      default: '',
+    },
     closeKind: {
       type: String,
       required: false,
@@ -30,6 +40,11 @@ export default {
       type: String,
       required: true,
     },
+    submitDisabled: {
+      type: Boolean,
+      required: false,
+      default: false,
+    },
   },
 
   computed: {
@@ -57,43 +72,58 @@ export default {
 </script>
 
 <template>
-<div
-  class="modal popup-dialog"
-  role="dialog"
-  tabindex="-1">
-  <div class="modal-dialog" role="document">
-    <div class="modal-content">
-      <div class="modal-header">
-        <button type="button"
-          class="close"
-          @click="close"
-          aria-label="Close">
-          <span aria-hidden="true">&times;</span>
-        </button>
-        <h4 class="modal-title">{{this.title}}</h4>
-      </div>
-      <div class="modal-body">
-        <slot name="body" :text="text">
-          <p>{{text}}</p>
-        </slot>
-      </div>
-      <div class="modal-footer">
-        <button
-          type="button"
-          class="btn"
-          :class="btnCancelKindClass"
-          @click="close">
-          {{ closeButtonLabel }}
-        </button>
-        <button
-          type="button"
-          class="btn"
-          :class="btnKindClass"
-          @click="emitSubmit(true)">
-          {{ primaryButtonLabel }}
-        </button>
+<div class="modal-open">
+  <div
+    class="modal popup-dialog"
+    role="dialog"
+    tabindex="-1"
+  >
+    <div
+      :class="modalDialogClass"
+      class="modal-dialog"
+      role="document"
+    >
+      <div class="modal-content">
+        <div class="modal-header">
+          <slot name="header">
+            <h4 class="modal-title pull-left">
+              {{this.title}}
+            </h4>
+            <button
+              type="button"
+              class="close pull-right"
+              @click="close"
+              aria-label="Close"
+            >
+              <span aria-hidden="true">&times;</span>
+            </button>
+          </slot>
+        </div>
+        <div class="modal-body">
+          <slot name="body" :text="text">
+            <p>{{this.text}}</p>
+          </slot>
+        </div>
+        <div class="modal-footer" v-if="!hideFooter">
+          <button
+            type="button"
+            class="btn pull-left"
+            :class="btnCancelKindClass"
+            @click="close">
+            {{ closeButtonLabel }}
+          </button>
+          <button
+            type="button"
+            class="btn pull-right"
+            :disabled="submitDisabled"
+            :class="btnKindClass"
+            @click="emitSubmit(true)">
+            {{ primaryButtonLabel }}
+          </button>
+        </div>
       </div>
     </div>
   </div>
+  <div class="modal-backdrop fade in" />
 </div>
 </template>
diff --git a/app/assets/javascripts/vue_shared/components/skeleton_loading_container.vue b/app/assets/javascripts/vue_shared/components/skeleton_loading_container.vue
new file mode 100644
index 00000000000..b06493e6c66
--- /dev/null
+++ b/app/assets/javascripts/vue_shared/components/skeleton_loading_container.vue
@@ -0,0 +1,37 @@
+<script>
+  export default {
+    props: {
+      small: {
+        type: Boolean,
+        required: false,
+        default: false,
+      },
+      lines: {
+        type: Number,
+        required: false,
+        default: 6,
+      },
+    },
+    computed: {
+      lineClasses() {
+        return new Array(this.lines).fill().map((_, i) => `skeleton-line-${i + 1}`);
+      },
+    },
+  };
+</script>
+
+<template>
+  <div
+    class="animation-container"
+    :class="{
+      'animation-container-small': small,
+    }"
+  >
+    <div
+      v-for="(css, index) in lineClasses"
+      :key="index"
+      :class="css"
+    >
+    </div>
+  </div>
+</template>
diff --git a/app/assets/javascripts/wikis.js b/app/assets/javascripts/wikis.js
index a0025ddb598..7a865587444 100644
--- a/app/assets/javascripts/wikis.js
+++ b/app/assets/javascripts/wikis.js
@@ -1,4 +1,5 @@
 import bp from './breakpoints';
+import { slugify } from './lib/utils/text_utility';
 
 export default class Wikis {
   constructor() {
@@ -23,7 +24,7 @@ export default class Wikis {
     if (!this.newWikiForm) return;
 
     const slugInput = this.newWikiForm.querySelector('#new_wiki_path');
-    const slug = gl.text.slugify(slugInput.value);
+    const slug = slugify(slugInput.value);
 
     if (slug.length > 0) {
       const wikisPath = slugInput.getAttribute('data-wikis-path');
diff --git a/app/assets/stylesheets/framework.scss b/app/assets/stylesheets/framework.scss
index c334f39f416..66212be1b8f 100644
--- a/app/assets/stylesheets/framework.scss
+++ b/app/assets/stylesheets/framework.scss
@@ -34,6 +34,7 @@
 @import "framework/modal";
 @import "framework/pagination";
 @import "framework/panels";
+@import "framework/popup";
 @import "framework/secondary-navigation-elements";
 @import "framework/selects";
 @import "framework/sidebar";
diff --git a/app/assets/stylesheets/framework/animations.scss b/app/assets/stylesheets/framework/animations.scss
index 1b944831082..374988bb590 100644
--- a/app/assets/stylesheets/framework/animations.scss
+++ b/app/assets/stylesheets/framework/animations.scss
@@ -23,16 +23,6 @@
     @include webkit-prefix(animation-duration, 2s);
   }
 
-  &.spin-cw {
-    transform-origin: center;
-    animation: spin 4s linear infinite;
-  }
-
-  &.spin-ccw {
-    transform-origin: center;
-    animation: spin 4s linear infinite reverse;
-  }
-
   &.flipOutX,
   &.flipOutY,
   &.bounceIn,
@@ -281,9 +271,3 @@ a {
     transform: translateX(468px);
   }
 }
-
-@keyframes spin {
-  100% {
-    transform: rotate(360deg);
-  }
-}
diff --git a/app/assets/stylesheets/framework/avatar.scss b/app/assets/stylesheets/framework/avatar.scss
index f1aedc227f3..26db2386879 100644
--- a/app/assets/stylesheets/framework/avatar.scss
+++ b/app/assets/stylesheets/framework/avatar.scss
@@ -42,8 +42,7 @@
   &.avatar-inline {
     float: none;
     display: inline-block;
-    margin-left: 4px;
-    margin-bottom: 2px;
+    margin-left: 2px;
     flex-shrink: 0;
     -webkit-flex-shrink: 0;
 
@@ -59,7 +58,7 @@
 
   &.avatar-tile {
     border-radius: 0;
-    border: none;
+    border: 0;
   }
 
   &:not([href]):hover {
@@ -96,7 +95,7 @@
 
   .avatar {
     border-radius: 0;
-    border: none;
+    border: 0;
     height: auto;
     width: 100%;
     margin: 0;
diff --git a/app/assets/stylesheets/framework/blank.scss b/app/assets/stylesheets/framework/blank.scss
index 6bb096fc5bd..10f9e9b70b0 100644
--- a/app/assets/stylesheets/framework/blank.scss
+++ b/app/assets/stylesheets/framework/blank.scss
@@ -7,29 +7,67 @@
     width: 100%;
     height: 100%;
     padding-bottom: 25px;
-    border: 1px solid $border-color;
     border-radius: $border-radius-default;
   }
 }
 
-.blank-state {
-  padding-top: 20px;
-  padding-bottom: 20px;
+.blank-state-row {
+  display: flex;
+  flex-wrap: wrap;
+  justify-content: space-around;
+  height: 100%;
+}
+
+.blank-state-welcome {
   text-align: center;
+  padding: 20px 0 40px;
+
+  .blank-state-welcome-title {
+    font-size: 24px;
+  }
+
+  .blank-state-text {
+    margin-bottom: 0;
+  }
+}
 
-  &.blank-state-welcome {
-    .blank-state-welcome-title {
-      font-size: 24px;
+.blank-state-link {
+  display: block;
+  color: $gl-text-color;
+  flex: 0 0 100%;
+  margin-bottom: 15px;
+
+  @media (min-width: $screen-sm-min) {
+    flex: 0 0 49%;
+
+    &:nth-child(odd) {
+      margin-right: 5px;
     }
 
-    .blank-state-text {
-      margin-bottom: 0;
+    &:nth-child(even) {
+      margin-left: 5px;
     }
   }
 
-  .blank-state-icon {
-    padding-bottom: 20px;
+  &:hover {
+    background-color: $gray-light;
+    text-decoration: none;
+    color: $gl-text-color;
+  }
+}
+
+.blank-state {
+  padding: 20px;
+  border: 1px solid $border-color;
+  border-radius: $border-radius-default;
+
+  @media (min-width: $screen-sm-min) {
+    display: flex;
+    align-items: center;
+    padding: 50px 30px;
+  }
 
+  .blank-state-icon {
     svg {
       display: block;
       margin: auto;
@@ -38,13 +76,17 @@
 
   .blank-state-title {
     margin-top: 0;
-    margin-bottom: 10px;
     font-size: 18px;
   }
 
-  .blank-state-text {
-    max-width: $container-text-max-width;
-    margin: 0 auto $gl-padding;
-    font-size: 14px;
+  .blank-state-body {
+    @media (max-width: $screen-xs-max) {
+      text-align: center;
+      margin-top: 20px;
+    }
+
+    @media (min-width: $screen-sm-min) {
+      padding-left: 20px;
+    }
   }
 }
diff --git a/app/assets/stylesheets/framework/blocks.scss b/app/assets/stylesheets/framework/blocks.scss
index def986180fc..91976ca1f56 100644
--- a/app/assets/stylesheets/framework/blocks.scss
+++ b/app/assets/stylesheets/framework/blocks.scss
@@ -39,7 +39,7 @@
   }
 
   &.top-block {
-    border-top: none;
+    border-top: 0;
 
     .container-fluid {
       background-color: inherit;
@@ -63,7 +63,7 @@
 
   &.footer-block {
     margin-top: 0;
-    border-bottom: none;
+    border-bottom: 0;
     margin-bottom: -$gl-padding;
   }
 
@@ -100,7 +100,7 @@
 
   &.build-content {
     background-color: $white-light;
-    border-top: none;
+    border-top: 0;
   }
 }
 
@@ -287,12 +287,12 @@
     cursor: pointer;
     color: $blue-300;
     z-index: 1;
-    border: none;
+    border: 0;
     background-color: transparent;
 
     &:hover,
     &:focus {
-      border: none;
+      border: 0;
       color: $blue-400;
     }
   }
@@ -353,3 +353,7 @@
   display: -webkit-flex;
   display: flex;
 }
+
+.flex-right {
+  margin-left: auto;
+}
diff --git a/app/assets/stylesheets/framework/buttons.scss b/app/assets/stylesheets/framework/buttons.scss
index 00a0e9cef67..b2f26cf7159 100644
--- a/app/assets/stylesheets/framework/buttons.scss
+++ b/app/assets/stylesheets/framework/buttons.scss
@@ -294,6 +294,7 @@
 
 .btn-align-content {
   display: flex;
+  justify-content: center;
   align-items: center;
 }
 
@@ -304,7 +305,7 @@
 }
 
 .btn-clipboard {
-  border: none;
+  border: 0;
   padding: 0 5px;
 }
 
diff --git a/app/assets/stylesheets/framework/common.scss b/app/assets/stylesheets/framework/common.scss
index ea3007f5e08..5f5b5657a2f 100644
--- a/app/assets/stylesheets/framework/common.scss
+++ b/app/assets/stylesheets/framework/common.scss
@@ -4,6 +4,9 @@
 .cred { color: $common-red; }
 .cgreen { color: $common-green; }
 .cdark { color: $common-gray-dark; }
+.text-secondary {
+  color: $gl-text-color-secondary;
+}
 
 .underlined-link { text-decoration: underline; }
 .hint { font-style: italic; color: $hint-color; }
@@ -28,7 +31,7 @@
 pre {
   &.clean {
     background: none;
-    border: none;
+    border: 0;
     margin: 0;
     padding: 0;
   }
@@ -142,7 +145,7 @@ li.note {
   img { max-width: 100%; }
   .note-title {
     li {
-      border-bottom: none !important;
+      border-bottom: 0 !important;
     }
   }
 }
@@ -187,7 +190,7 @@ li.note {
 
   pre {
     background: $white-light;
-    border: none;
+    border: 0;
     font-size: 12px;
   }
 }
@@ -386,7 +389,7 @@ img.emoji {
 }
 
 .hide-bottom-border {
-  border-bottom: none !important;
+  border-bottom: 0 !important;
 }
 
 .gl-accessibility {
diff --git a/app/assets/stylesheets/framework/dropdowns.scss b/app/assets/stylesheets/framework/dropdowns.scss
index 08c603edd23..579bd48fac6 100644
--- a/app/assets/stylesheets/framework/dropdowns.scss
+++ b/app/assets/stylesheets/framework/dropdowns.scss
@@ -37,6 +37,7 @@
   .dropdown-menu-nav {
     @include set-visible;
     display: block;
+    min-height: 40px;
 
     @media (max-width: $screen-xs-max) {
       width: 100%;
diff --git a/app/assets/stylesheets/framework/emoji-sprites.scss b/app/assets/stylesheets/framework/emoji-sprites.scss
index 925415f84b1..0174e17b660 100644
--- a/app/assets/stylesheets/framework/emoji-sprites.scss
+++ b/app/assets/stylesheets/framework/emoji-sprites.scss
@@ -765,1031 +765,1033 @@
 .emoji-full_moon { background-position: -160px -540px; }
 .emoji-full_moon_with_face { background-position: -180px -540px; }
 .emoji-game_die { background-position: -200px -540px; }
-.emoji-gear { background-position: -220px -540px; }
-.emoji-gem { background-position: -240px -540px; }
-.emoji-gemini { background-position: -260px -540px; }
-.emoji-ghost { background-position: -280px -540px; }
-.emoji-gift { background-position: -300px -540px; }
-.emoji-gift_heart { background-position: -320px -540px; }
-.emoji-girl { background-position: -340px -540px; }
-.emoji-girl_tone1 { background-position: -360px -540px; }
-.emoji-girl_tone2 { background-position: -380px -540px; }
-.emoji-girl_tone3 { background-position: -400px -540px; }
-.emoji-girl_tone4 { background-position: -420px -540px; }
-.emoji-girl_tone5 { background-position: -440px -540px; }
-.emoji-globe_with_meridians { background-position: -460px -540px; }
-.emoji-goal { background-position: -480px -540px; }
-.emoji-goat { background-position: -500px -540px; }
-.emoji-golf { background-position: -520px -540px; }
-.emoji-golfer { background-position: -540px -540px; }
-.emoji-gorilla { background-position: -560px 0; }
-.emoji-grapes { background-position: -560px -20px; }
-.emoji-green_apple { background-position: -560px -40px; }
-.emoji-green_book { background-position: -560px -60px; }
-.emoji-green_heart { background-position: -560px -80px; }
-.emoji-grey_exclamation { background-position: -560px -100px; }
-.emoji-grey_question { background-position: -560px -120px; }
-.emoji-grimacing { background-position: -560px -140px; }
-.emoji-grin { background-position: -560px -160px; }
-.emoji-grinning { background-position: -560px -180px; }
-.emoji-guardsman { background-position: -560px -200px; }
-.emoji-guardsman_tone1 { background-position: -560px -220px; }
-.emoji-guardsman_tone2 { background-position: -560px -240px; }
-.emoji-guardsman_tone3 { background-position: -560px -260px; }
-.emoji-guardsman_tone4 { background-position: -560px -280px; }
-.emoji-guardsman_tone5 { background-position: -560px -300px; }
-.emoji-guitar { background-position: -560px -320px; }
-.emoji-gun { background-position: -560px -340px; }
-.emoji-haircut { background-position: -560px -360px; }
-.emoji-haircut_tone1 { background-position: -560px -380px; }
-.emoji-haircut_tone2 { background-position: -560px -400px; }
-.emoji-haircut_tone3 { background-position: -560px -420px; }
-.emoji-haircut_tone4 { background-position: -560px -440px; }
-.emoji-haircut_tone5 { background-position: -560px -460px; }
-.emoji-hamburger { background-position: -560px -480px; }
-.emoji-hammer { background-position: -560px -500px; }
-.emoji-hammer_pick { background-position: -560px -520px; }
-.emoji-hamster { background-position: -560px -540px; }
-.emoji-hand_splayed { background-position: 0 -560px; }
-.emoji-hand_splayed_tone1 { background-position: -20px -560px; }
-.emoji-hand_splayed_tone2 { background-position: -40px -560px; }
-.emoji-hand_splayed_tone3 { background-position: -60px -560px; }
-.emoji-hand_splayed_tone4 { background-position: -80px -560px; }
-.emoji-hand_splayed_tone5 { background-position: -100px -560px; }
-.emoji-handbag { background-position: -120px -560px; }
-.emoji-handball { background-position: -140px -560px; }
-.emoji-handball_tone1 { background-position: -160px -560px; }
-.emoji-handball_tone2 { background-position: -180px -560px; }
-.emoji-handball_tone3 { background-position: -200px -560px; }
-.emoji-handball_tone4 { background-position: -220px -560px; }
-.emoji-handball_tone5 { background-position: -240px -560px; }
-.emoji-handshake { background-position: -260px -560px; }
-.emoji-handshake_tone1 { background-position: -280px -560px; }
-.emoji-handshake_tone2 { background-position: -300px -560px; }
-.emoji-handshake_tone3 { background-position: -320px -560px; }
-.emoji-handshake_tone4 { background-position: -340px -560px; }
-.emoji-handshake_tone5 { background-position: -360px -560px; }
-.emoji-hash { background-position: -380px -560px; }
-.emoji-hatched_chick { background-position: -400px -560px; }
-.emoji-hatching_chick { background-position: -420px -560px; }
-.emoji-head_bandage { background-position: -440px -560px; }
-.emoji-headphones { background-position: -460px -560px; }
-.emoji-hear_no_evil { background-position: -480px -560px; }
-.emoji-heart { background-position: -500px -560px; }
-.emoji-heart_decoration { background-position: -520px -560px; }
-.emoji-heart_exclamation { background-position: -540px -560px; }
-.emoji-heart_eyes { background-position: -560px -560px; }
-.emoji-heart_eyes_cat { background-position: -580px 0; }
-.emoji-heartbeat { background-position: -580px -20px; }
-.emoji-heartpulse { background-position: -580px -40px; }
-.emoji-hearts { background-position: -580px -60px; }
-.emoji-heavy_check_mark { background-position: -580px -80px; }
-.emoji-heavy_division_sign { background-position: -580px -100px; }
-.emoji-heavy_dollar_sign { background-position: -580px -120px; }
-.emoji-heavy_minus_sign { background-position: -580px -140px; }
-.emoji-heavy_multiplication_x { background-position: -580px -160px; }
-.emoji-heavy_plus_sign { background-position: -580px -180px; }
-.emoji-helicopter { background-position: -580px -200px; }
-.emoji-helmet_with_cross { background-position: -580px -220px; }
-.emoji-herb { background-position: -580px -240px; }
-.emoji-hibiscus { background-position: -580px -260px; }
-.emoji-high_brightness { background-position: -580px -280px; }
-.emoji-high_heel { background-position: -580px -300px; }
-.emoji-hockey { background-position: -580px -320px; }
-.emoji-hole { background-position: -580px -340px; }
-.emoji-homes { background-position: -580px -360px; }
-.emoji-honey_pot { background-position: -580px -380px; }
-.emoji-horse { background-position: -580px -400px; }
-.emoji-horse_racing { background-position: -580px -420px; }
-.emoji-horse_racing_tone1 { background-position: -580px -440px; }
-.emoji-horse_racing_tone2 { background-position: -580px -460px; }
-.emoji-horse_racing_tone3 { background-position: -580px -480px; }
-.emoji-horse_racing_tone4 { background-position: -580px -500px; }
-.emoji-horse_racing_tone5 { background-position: -580px -520px; }
-.emoji-hospital { background-position: -580px -540px; }
-.emoji-hot_pepper { background-position: -580px -560px; }
-.emoji-hotdog { background-position: 0 -580px; }
-.emoji-hotel { background-position: -20px -580px; }
-.emoji-hotsprings { background-position: -40px -580px; }
-.emoji-hourglass { background-position: -60px -580px; }
-.emoji-hourglass_flowing_sand { background-position: -80px -580px; }
-.emoji-house { background-position: -100px -580px; }
-.emoji-house_abandoned { background-position: -120px -580px; }
-.emoji-house_with_garden { background-position: -140px -580px; }
-.emoji-hugging { background-position: -160px -580px; }
-.emoji-hushed { background-position: -180px -580px; }
-.emoji-ice_cream { background-position: -200px -580px; }
-.emoji-ice_skate { background-position: -220px -580px; }
-.emoji-icecream { background-position: -240px -580px; }
-.emoji-id { background-position: -260px -580px; }
-.emoji-ideograph_advantage { background-position: -280px -580px; }
-.emoji-imp { background-position: -300px -580px; }
-.emoji-inbox_tray { background-position: -320px -580px; }
-.emoji-incoming_envelope { background-position: -340px -580px; }
-.emoji-information_desk_person { background-position: -360px -580px; }
-.emoji-information_desk_person_tone1 { background-position: -380px -580px; }
-.emoji-information_desk_person_tone2 { background-position: -400px -580px; }
-.emoji-information_desk_person_tone3 { background-position: -420px -580px; }
-.emoji-information_desk_person_tone4 { background-position: -440px -580px; }
-.emoji-information_desk_person_tone5 { background-position: -460px -580px; }
-.emoji-information_source { background-position: -480px -580px; }
-.emoji-innocent { background-position: -500px -580px; }
-.emoji-interrobang { background-position: -520px -580px; }
-.emoji-iphone { background-position: -540px -580px; }
-.emoji-island { background-position: -560px -580px; }
-.emoji-izakaya_lantern { background-position: -580px -580px; }
-.emoji-jack_o_lantern { background-position: -600px 0; }
-.emoji-japan { background-position: -600px -20px; }
-.emoji-japanese_castle { background-position: -600px -40px; }
-.emoji-japanese_goblin { background-position: -600px -60px; }
-.emoji-japanese_ogre { background-position: -600px -80px; }
-.emoji-jeans { background-position: -600px -100px; }
-.emoji-joy { background-position: -600px -120px; }
-.emoji-joy_cat { background-position: -600px -140px; }
-.emoji-joystick { background-position: -600px -160px; }
-.emoji-juggling { background-position: -600px -180px; }
-.emoji-juggling_tone1 { background-position: -600px -200px; }
-.emoji-juggling_tone2 { background-position: -600px -220px; }
-.emoji-juggling_tone3 { background-position: -600px -240px; }
-.emoji-juggling_tone4 { background-position: -600px -260px; }
-.emoji-juggling_tone5 { background-position: -600px -280px; }
-.emoji-kaaba { background-position: -600px -300px; }
-.emoji-key { background-position: -600px -320px; }
-.emoji-key2 { background-position: -600px -340px; }
-.emoji-keyboard { background-position: -600px -360px; }
-.emoji-kimono { background-position: -600px -380px; }
-.emoji-kiss { background-position: -600px -400px; }
-.emoji-kiss_mm { background-position: -600px -420px; }
-.emoji-kiss_ww { background-position: -600px -440px; }
-.emoji-kissing { background-position: -600px -460px; }
-.emoji-kissing_cat { background-position: -600px -480px; }
-.emoji-kissing_closed_eyes { background-position: -600px -500px; }
-.emoji-kissing_heart { background-position: -600px -520px; }
-.emoji-kissing_smiling_eyes { background-position: -600px -540px; }
-.emoji-kiwi { background-position: -600px -560px; }
-.emoji-knife { background-position: -600px -580px; }
-.emoji-koala { background-position: 0 -600px; }
-.emoji-koko { background-position: -20px -600px; }
-.emoji-label { background-position: -40px -600px; }
-.emoji-large_blue_circle { background-position: -60px -600px; }
-.emoji-large_blue_diamond { background-position: -80px -600px; }
-.emoji-large_orange_diamond { background-position: -100px -600px; }
-.emoji-last_quarter_moon { background-position: -120px -600px; }
-.emoji-last_quarter_moon_with_face { background-position: -140px -600px; }
-.emoji-laughing { background-position: -160px -600px; }
-.emoji-leaves { background-position: -180px -600px; }
-.emoji-ledger { background-position: -200px -600px; }
-.emoji-left_facing_fist { background-position: -220px -600px; }
-.emoji-left_facing_fist_tone1 { background-position: -240px -600px; }
-.emoji-left_facing_fist_tone2 { background-position: -260px -600px; }
-.emoji-left_facing_fist_tone3 { background-position: -280px -600px; }
-.emoji-left_facing_fist_tone4 { background-position: -300px -600px; }
-.emoji-left_facing_fist_tone5 { background-position: -320px -600px; }
-.emoji-left_luggage { background-position: -340px -600px; }
-.emoji-left_right_arrow { background-position: -360px -600px; }
-.emoji-leftwards_arrow_with_hook { background-position: -380px -600px; }
-.emoji-lemon { background-position: -400px -600px; }
-.emoji-leo { background-position: -420px -600px; }
-.emoji-leopard { background-position: -440px -600px; }
-.emoji-level_slider { background-position: -460px -600px; }
-.emoji-levitate { background-position: -480px -600px; }
-.emoji-libra { background-position: -500px -600px; }
-.emoji-lifter { background-position: -520px -600px; }
-.emoji-lifter_tone1 { background-position: -540px -600px; }
-.emoji-lifter_tone2 { background-position: -560px -600px; }
-.emoji-lifter_tone3 { background-position: -580px -600px; }
-.emoji-lifter_tone4 { background-position: -600px -600px; }
-.emoji-lifter_tone5 { background-position: -620px 0; }
-.emoji-light_rail { background-position: -620px -20px; }
-.emoji-link { background-position: -620px -40px; }
-.emoji-lion_face { background-position: -620px -60px; }
-.emoji-lips { background-position: -620px -80px; }
-.emoji-lipstick { background-position: -620px -100px; }
-.emoji-lizard { background-position: -620px -120px; }
-.emoji-lock { background-position: -620px -140px; }
-.emoji-lock_with_ink_pen { background-position: -620px -160px; }
-.emoji-lollipop { background-position: -620px -180px; }
-.emoji-loop { background-position: -620px -200px; }
-.emoji-loud_sound { background-position: -620px -220px; }
-.emoji-loudspeaker { background-position: -620px -240px; }
-.emoji-love_hotel { background-position: -620px -260px; }
-.emoji-love_letter { background-position: -620px -280px; }
-.emoji-low_brightness { background-position: -620px -300px; }
-.emoji-lying_face { background-position: -620px -320px; }
-.emoji-m { background-position: -620px -340px; }
-.emoji-mag { background-position: -620px -360px; }
-.emoji-mag_right { background-position: -620px -380px; }
-.emoji-mahjong { background-position: -620px -400px; }
-.emoji-mailbox { background-position: -620px -420px; }
-.emoji-mailbox_closed { background-position: -620px -440px; }
-.emoji-mailbox_with_mail { background-position: -620px -460px; }
-.emoji-mailbox_with_no_mail { background-position: -620px -480px; }
-.emoji-man { background-position: -620px -500px; }
-.emoji-man_dancing { background-position: -620px -520px; }
-.emoji-man_dancing_tone1 { background-position: -620px -540px; }
-.emoji-man_dancing_tone2 { background-position: -620px -560px; }
-.emoji-man_dancing_tone3 { background-position: -620px -580px; }
-.emoji-man_dancing_tone4 { background-position: -620px -600px; }
-.emoji-man_dancing_tone5 { background-position: 0 -620px; }
-.emoji-man_in_tuxedo { background-position: -20px -620px; }
-.emoji-man_in_tuxedo_tone1 { background-position: -40px -620px; }
-.emoji-man_in_tuxedo_tone2 { background-position: -60px -620px; }
-.emoji-man_in_tuxedo_tone3 { background-position: -80px -620px; }
-.emoji-man_in_tuxedo_tone4 { background-position: -100px -620px; }
-.emoji-man_in_tuxedo_tone5 { background-position: -120px -620px; }
-.emoji-man_tone1 { background-position: -140px -620px; }
-.emoji-man_tone2 { background-position: -160px -620px; }
-.emoji-man_tone3 { background-position: -180px -620px; }
-.emoji-man_tone4 { background-position: -200px -620px; }
-.emoji-man_tone5 { background-position: -220px -620px; }
-.emoji-man_with_gua_pi_mao { background-position: -240px -620px; }
-.emoji-man_with_gua_pi_mao_tone1 { background-position: -260px -620px; }
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+.emoji-wedding { background-position: -360px -820px; }
+.emoji-whale { background-position: -380px -820px; }
+.emoji-whale2 { background-position: -400px -820px; }
+.emoji-wheel_of_dharma { background-position: -420px -820px; }
+.emoji-wheelchair { background-position: -440px -820px; }
+.emoji-white_check_mark { background-position: -460px -820px; }
+.emoji-white_circle { background-position: -480px -820px; }
+.emoji-white_flower { background-position: -500px -820px; }
+.emoji-white_large_square { background-position: -520px -820px; }
+.emoji-white_medium_small_square { background-position: -540px -820px; }
+.emoji-white_medium_square { background-position: -560px -820px; }
+.emoji-white_small_square { background-position: -580px -820px; }
+.emoji-white_square_button { background-position: -600px -820px; }
+.emoji-white_sun_cloud { background-position: -620px -820px; }
+.emoji-white_sun_rain_cloud { background-position: -640px -820px; }
+.emoji-white_sun_small_cloud { background-position: -660px -820px; }
+.emoji-wilted_rose { background-position: -680px -820px; }
+.emoji-wind_blowing_face { background-position: -700px -820px; }
+.emoji-wind_chime { background-position: -720px -820px; }
+.emoji-wine_glass { background-position: -740px -820px; }
+.emoji-wink { background-position: -760px -820px; }
+.emoji-wolf { background-position: -780px -820px; }
+.emoji-woman { background-position: -800px -820px; }
+.emoji-woman_tone1 { background-position: -820px -820px; }
+.emoji-woman_tone2 { background-position: -840px 0; }
+.emoji-woman_tone3 { background-position: -840px -20px; }
+.emoji-woman_tone4 { background-position: -840px -40px; }
+.emoji-woman_tone5 { background-position: -840px -60px; }
+.emoji-womans_clothes { background-position: -840px -80px; }
+.emoji-womans_hat { background-position: -840px -100px; }
+.emoji-womens { background-position: -840px -120px; }
+.emoji-worried { background-position: -840px -140px; }
+.emoji-wrench { background-position: -840px -160px; }
+.emoji-wrestlers { background-position: -840px -180px; }
+.emoji-wrestlers_tone1 { background-position: -840px -200px; }
+.emoji-wrestlers_tone2 { background-position: -840px -220px; }
+.emoji-wrestlers_tone3 { background-position: -840px -240px; }
+.emoji-wrestlers_tone4 { background-position: -840px -260px; }
+.emoji-wrestlers_tone5 { background-position: -840px -280px; }
+.emoji-writing_hand { background-position: -840px -300px; }
+.emoji-writing_hand_tone1 { background-position: -840px -320px; }
+.emoji-writing_hand_tone2 { background-position: -840px -340px; }
+.emoji-writing_hand_tone3 { background-position: -840px -360px; }
+.emoji-writing_hand_tone4 { background-position: -840px -380px; }
+.emoji-writing_hand_tone5 { background-position: -840px -400px; }
+.emoji-x { background-position: -840px -420px; }
+.emoji-yellow_heart { background-position: -840px -440px; }
+.emoji-yen { background-position: -840px -460px; }
+.emoji-yin_yang { background-position: -840px -480px; }
+.emoji-yum { background-position: -840px -500px; }
+.emoji-zap { background-position: -840px -520px; }
+.emoji-zero { background-position: -840px -540px; }
+.emoji-zipper_mouth { background-position: -840px -560px; }
+.emoji-100 { background-position: -840px -580px; }
 
 .emoji-icon {
   background-image: image-url('emoji.png');
diff --git a/app/assets/stylesheets/framework/files.scss b/app/assets/stylesheets/framework/files.scss
index 6382551fcc9..c2a3cd16e67 100644
--- a/app/assets/stylesheets/framework/files.scss
+++ b/app/assets/stylesheets/framework/files.scss
@@ -101,13 +101,13 @@
 
     @for $i from 0 through 5 {
       .legend-box-#{$i} {
-        background-color: mix($blame-cyan, $blame-blue, $i / 5.0 * 100%);
+        background-color: mix($blame-cyan, $blame-blue, $i / 5 * 100%);
       }
     }
 
     @for $i from 1 through 4 {
       .legend-box-#{$i + 5} {
-        background-color: mix($blame-gray, $blame-cyan, $i / 4.0 * 100%);
+        background-color: mix($blame-gray, $blame-cyan, $i / 4 * 100%);
       }
     }
   }
@@ -142,7 +142,7 @@
      */
     &.blame {
       table {
-        border: none;
+        border: 0;
         margin: 0;
       }
 
@@ -150,20 +150,20 @@
         border-bottom: 1px solid $blame-border;
 
         &:last-child {
-          border-bottom: none;
+          border-bottom: 0;
         }
       }
 
       td {
-        border-top: none;
-        border-bottom: none;
+        border-top: 0;
+        border-bottom: 0;
 
         &:first-child {
-          border-left: none;
+          border-left: 0;
         }
 
         &:last-child {
-          border-right: none;
+          border-right: 0;
         }
 
         &.blame-commit {
@@ -200,13 +200,13 @@
 
       @for $i from 0 through 5 {
         td.blame-commit-age-#{$i} {
-          border-left-color: mix($blame-cyan, $blame-blue, $i / 5.0 * 100%);
+          border-left-color: mix($blame-cyan, $blame-blue, $i / 5 * 100%);
         }
       }
 
       @for $i from 1 through 4 {
         td.blame-commit-age-#{$i + 5} {
-          border-left-color: mix($blame-gray, $blame-cyan, $i / 4.0 * 100%);
+          border-left-color: mix($blame-gray, $blame-cyan, $i / 4 * 100%);
         }
       }
     }
diff --git a/app/assets/stylesheets/framework/filters.scss b/app/assets/stylesheets/framework/filters.scss
index a7333925f80..74b6b31b07e 100644
--- a/app/assets/stylesheets/framework/filters.scss
+++ b/app/assets/stylesheets/framework/filters.scss
@@ -255,7 +255,7 @@
   .clear-search {
     width: 35px;
     background-color: $white-light;
-    border: none;
+    border: 0;
     outline: none;
     z-index: 1;
 
@@ -418,7 +418,7 @@
 
 .droplab-dropdown .dropdown-menu .filter-dropdown-item {
   .btn {
-    border: none;
+    border: 0;
     width: 100%;
     text-align: left;
     padding: 8px 16px;
diff --git a/app/assets/stylesheets/framework/header.scss b/app/assets/stylesheets/framework/header.scss
index 5d777f0d468..2218b5705fc 100644
--- a/app/assets/stylesheets/framework/header.scss
+++ b/app/assets/stylesheets/framework/header.scss
@@ -10,7 +10,7 @@
     z-index: 1000;
     margin-bottom: 0;
     min-height: $header-height;
-    border: none;
+    border: 0;
     border-bottom: 1px solid $border-color;
     position: fixed;
     top: 0;
@@ -129,7 +129,7 @@
         margin: 5px 2px 5px -8px;
         border-radius: $border-radius-default;
 
-        svg {
+        .tanuki-logo {
           @media (min-width: $screen-sm-min) {
             margin-right: 8px;
           }
@@ -169,7 +169,7 @@
 
   .navbar-collapse {
     flex: 0 0 auto;
-    border-top: none;
+    border-top: 0;
     padding: 0;
 
     @media (max-width: $screen-xs-max) {
@@ -352,77 +352,7 @@
 
 .header-user .dropdown-menu-nav,
 .header-new .dropdown-menu-nav {
-  margin-top: 4px;
-}
-
-.search {
-  margin: 4px 8px 0;
-
-  form {
-    height: 32px;
-    border: 0;
-    border-radius: $border-radius-default;
-    transition: border-color ease-in-out 0.15s, background-color ease-in-out 0.15s;
-
-    &:hover {
-      box-shadow: none;
-    }
-  }
-
-  .search-input {
-    color: $white-light;
-    background: none;
-    transition: color ease-in-out 0.15s;
-  }
-
-  .search-input::placeholder {
-    transition: color ease-in-out 0.15s;
-  }
-
-  .location-badge {
-    font-size: 12px;
-    margin: -4px 4px -4px -4px;
-    line-height: 25px;
-    padding: 4px 8px;
-    border-radius: 2px 0 0 2px;
-    height: 32px;
-    transition: border-color ease-in-out 0.15s;
-  }
-
-  &.search-active {
-    form {
-      background-color: rgba($indigo-200, .3);
-      box-shadow: none;
-
-      .search-input {
-        color: $gl-text-color;
-        transition: color ease-in-out 0.15s;
-      }
-
-      .search-input::placeholder {
-        color: $gl-text-color-tertiary;
-      }
-
-      .search-input-wrap {
-        .search-icon,
-        .clear-icon {
-          color: $gl-text-color-tertiary;
-          transition: color ease-in-out 0.15s;
-        }
-      }
-    }
-
-    .location-badge {
-      background-color: $nav-badge-bg;
-      border-color: $border-color;
-    }
-
-    .search-input-wrap {
-      .clear-icon {
-        color: $white-light;
-      }
-    }
-  }
+  margin-top: $dropdown-vertical-offset;
 }
 
 .breadcrumbs {
@@ -471,10 +401,13 @@
 .breadcrumbs-list {
   display: -webkit-flex;
   display: flex;
-  flex-wrap: wrap;
   margin-bottom: 0;
   line-height: 16px;
 
+  @media (max-width: $screen-xs-max) {
+    flex-wrap: wrap;
+  }
+
   > li {
     display: flex;
     align-items: center;
@@ -482,24 +415,35 @@
     padding: 2px 0;
 
     &:not(:last-child) {
-      margin-right: 20px;
+      padding-right: 20px;
+
+      &:not(.dropdown) {
+        overflow: hidden;
+      }
     }
 
     > a {
       font-size: 12px;
       color: currentColor;
+      white-space: nowrap;
+      overflow: hidden;
+      text-overflow: ellipsis;
+      flex: 0 1 auto;
     }
   }
 }
 
 .breadcrumb-item-text {
-  @include str-truncated(128px);
   text-decoration: inherit;
+
+  @media (max-width: $screen-xs-max) {
+    @include str-truncated(128px);
+  }
 }
 
 .breadcrumbs-list-angle {
   position: absolute;
-  right: -12px;
+  right: 7px;
   top: 50%;
   color: $gl-text-color-tertiary;
   transform: translateY(-50%);
diff --git a/app/assets/stylesheets/framework/highlight.scss b/app/assets/stylesheets/framework/highlight.scss
index c63114f85b4..813a1711ea2 100644
--- a/app/assets/stylesheets/framework/highlight.scss
+++ b/app/assets/stylesheets/framework/highlight.scss
@@ -1,5 +1,5 @@
 .file-content.code {
-  border: none;
+  border: 0;
   box-shadow: none;
   margin: 0;
   padding: 0;
@@ -7,7 +7,7 @@
 
   pre {
     padding: 10px 0;
-    border: none;
+    border: 0;
     border-radius: 0;
     font-family: $monospace_font;
     font-size: $code_font_size;
diff --git a/app/assets/stylesheets/framework/lists.scss b/app/assets/stylesheets/framework/lists.scss
index 511608c618c..ad3bb0e35d1 100644
--- a/app/assets/stylesheets/framework/lists.scss
+++ b/app/assets/stylesheets/framework/lists.scss
@@ -42,7 +42,7 @@
     }
 
     &:last-child {
-      border-bottom: none;
+      border-bottom: 0;
 
       &.bottom {
         background: $gray-light;
@@ -92,7 +92,7 @@ ul.unstyled-list {
 }
 
 ul.unstyled-list > li {
-  border-bottom: none;
+  border-bottom: 0;
 }
 
 // Generic content list
@@ -178,7 +178,7 @@ ul.content-list {
 
     // When dragging a list item
     &.ui-sortable-helper {
-      border-bottom: none;
+      border-bottom: 0;
     }
 
     &.list-placeholder {
@@ -295,7 +295,7 @@ ul.indent-list {
   }
 
   > .group-list-tree > .group-row.has-children:first-child {
-    border-top: none;
+    border-top: 0;
   }
 }
 
@@ -413,7 +413,7 @@ ul.indent-list {
     padding: 0;
 
     &.has-children {
-      border-top: none;
+      border-top: 0;
     }
 
     &:first-child {
diff --git a/app/assets/stylesheets/framework/mixins.scss b/app/assets/stylesheets/framework/mixins.scss
index 2fee2164190..33012133b66 100644
--- a/app/assets/stylesheets/framework/mixins.scss
+++ b/app/assets/stylesheets/framework/mixins.scss
@@ -36,7 +36,7 @@
     margin: 0;
 
     &:last-child {
-      border-bottom: none;
+      border-bottom: 0;
     }
 
     &.active {
@@ -180,3 +180,31 @@
     display: none;
   }
 }
+
+@mixin triangle($color, $border-color, $size, $border-size) {
+  &::before,
+  &::after {
+    bottom: 100%;
+    left: 50%;
+    border: solid transparent;
+    content: '';
+    height: 0;
+    width: 0;
+    position: absolute;
+    pointer-events: none;
+  }
+
+  &::before {
+    border-color: transparent;
+    border-bottom-color: $border-color;
+    border-width: ($size + $border-size);
+    margin-left: -($size + $border-size);
+  }
+
+  &::after {
+    border-color: transparent;
+    border-bottom-color: $color;
+    border-width: $size;
+    margin-left: -$size;
+  }
+}
diff --git a/app/assets/stylesheets/framework/modal.scss b/app/assets/stylesheets/framework/modal.scss
index 1cebd02df48..5c9838c1029 100644
--- a/app/assets/stylesheets/framework/modal.scss
+++ b/app/assets/stylesheets/framework/modal.scss
@@ -7,6 +7,7 @@
 }
 
 .modal-body {
+  background-color: $modal-body-bg;
   position: relative;
   padding: #{3 * $grid-size} #{2 * $grid-size};
 
@@ -42,3 +43,8 @@ body.modal-open {
     width: 98%;
   }
 }
+
+.modal.popup-dialog {
+  display: block;
+}
+
diff --git a/app/assets/stylesheets/framework/popup.scss b/app/assets/stylesheets/framework/popup.scss
new file mode 100644
index 00000000000..5c76205095f
--- /dev/null
+++ b/app/assets/stylesheets/framework/popup.scss
@@ -0,0 +1,15 @@
+.popup {
+  @include triangle(
+    $gray-lighter,
+    $gray-darker,
+    $popup-triangle-size,
+    $popup-triangle-border-size
+  );
+
+  padding: $gl-padding;
+  background-color: $gray-lighter;
+  border: 1px solid $gray-darker;
+  border-radius: $border-radius-default;
+  box-shadow: 0 5px 8px $popup-box-shadow-color;
+  position: relative;
+}
diff --git a/app/assets/stylesheets/framework/responsive_tables.scss b/app/assets/stylesheets/framework/responsive_tables.scss
index 8b7afdbe1a5..7829d722560 100644
--- a/app/assets/stylesheets/framework/responsive_tables.scss
+++ b/app/assets/stylesheets/framework/responsive_tables.scss
@@ -24,7 +24,7 @@
   @media (min-width: $screen-md-min) {
     margin: 0;
     padding: $gl-padding 0;
-    border: none;
+    border: 0;
 
     &:not(:last-child) {
       border-bottom: 1px solid $white-normal;
diff --git a/app/assets/stylesheets/framework/secondary-navigation-elements.scss b/app/assets/stylesheets/framework/secondary-navigation-elements.scss
index 9e1f77e5726..8498b37abe4 100644
--- a/app/assets/stylesheets/framework/secondary-navigation-elements.scss
+++ b/app/assets/stylesheets/framework/secondary-navigation-elements.scss
@@ -63,7 +63,7 @@
 
   .nav-links {
     margin-bottom: 0;
-    border-bottom: none;
+    border-bottom: 0;
     float: left;
 
     &.wide {
@@ -335,69 +335,16 @@
     border-bottom: 1px solid $border-color;
 
     .nav-links {
-      border-bottom: none;
+      border-bottom: 0;
     }
   }
 }
 
-.page-with-layout-nav {
-  .right-sidebar {
-    top: ($header-height + 1) * 2;
-  }
-
-  &.page-with-sub-nav {
-    .right-sidebar {
-      top: ($header-height + 1) * 3;
-
-      &.affix {
-        top: $header-height;
-      }
-    }
-  }
-}
-
-.with-performance-bar .page-with-layout-nav {
-  .right-sidebar {
-    top: ($header-height + 1) * 2 + $performance-bar-height;
-  }
-
-  &.page-with-sub-nav {
-    .right-sidebar {
-      top: ($header-height + 1) * 3 + $performance-bar-height;
-
-      &.affix {
-        top: $header-height + $performance-bar-height;
-      }
-    }
-  }
-}
-
-@media (max-width: $screen-xs-max) {
-  .top-area {
-    flex-flow: row wrap;
-
-    .nav-controls {
-      $controls-margin: $btn-xs-side-margin - 2px;
-      flex: 0 0 100%;
-
-      &.controls-flex {
-        display: flex;
-        flex-flow: row wrap;
-        align-items: center;
-        justify-content: center;
-        padding: 0 0 $gl-padding-top;
-      }
-
-      .controls-item,
-      .controls-item-full,
-      .controls-item:last-child {
-        flex: 1 1 35%;
-        display: block;
-        width: 100%;
-        margin: $controls-margin;
-      }
-    }
-  }
+.project-item-select-holder.btn-group {
+  display: flex;
+  max-width: 350px;
+  overflow: hidden;
+  float: right;
 
   .new-project-item-link {
     white-space: nowrap;
diff --git a/app/assets/stylesheets/framework/selects.scss b/app/assets/stylesheets/framework/selects.scss
index aa35cd9bea4..bb70b270299 100644
--- a/app/assets/stylesheets/framework/selects.scss
+++ b/app/assets/stylesheets/framework/selects.scss
@@ -17,7 +17,7 @@
     .select2-arrow {
       background-image: none;
       background-color: transparent;
-      border: none;
+      border: 0;
       padding-top: 12px;
       padding-right: 20px;
       font-size: 10px;
@@ -60,12 +60,17 @@
   border-radius: $border-radius-base;
   border: 1px solid $dropdown-border-color;
   min-width: 175px;
-  color: $gl-grayish-blue;
+  color: $gl-text-color;
+  z-index: 999;
 }
 
-.select2-results .select2-result-label,
-.select2-more-results {
-  padding: 10px 15px;
+.select2-drop-mask {
+  z-index: 998;
+}
+
+.select2-drop.select2-drop-above.select2-drop-active {
+  border-top: 1px solid $dropdown-border-color;
+  margin-top: -6px;
 }
 
 .select2-container-active {
@@ -158,18 +163,35 @@
   }
 }
 
-.select2-results .select2-no-results,
-.select2-results .select2-searching,
-.select2-results .select2-ajax-error,
-.select2-results .select2-selection-limit {
-  background: $gray-light;
-  display: list-item;
-  padding: 10px 15px;
-}
-
 .select2-results {
   margin: 0;
-  padding: 10px 0;
+  padding: #{$gl-padding / 2} 0;
+
+  .select2-no-results,
+  .select2-searching,
+  .select2-ajax-error,
+  .select2-selection-limit {
+    background: transparent;
+    padding: #{$gl-padding / 2} $gl-padding;
+  }
+
+  .select2-result-label,
+  .select2-more-results {
+    padding: #{$gl-padding / 2} $gl-padding;
+  }
+
+  .select2-highlighted {
+    background: transparent;
+    color: $gl-text-color;
+
+    .select2-result-label {
+      background: $dropdown-item-hover-bg;
+    }
+  }
+
+  .select2-result {
+    padding: 0 1px;
+  }
 
   li.select2-result-with-children > .select2-result-label {
     font-weight: $gl-font-weight-bold;
@@ -190,8 +212,6 @@
 }
 
 .select2-highlighted {
-  background: $gl-link-color !important;
-
   .group-result {
     .group-path {
       color: $white-light;
diff --git a/app/assets/stylesheets/framework/sidebar.scss b/app/assets/stylesheets/framework/sidebar.scss
index ef58382ba41..1a19b7320a0 100644
--- a/app/assets/stylesheets/framework/sidebar.scss
+++ b/app/assets/stylesheets/framework/sidebar.scss
@@ -9,7 +9,7 @@
     &.container-blank {
       background: none;
       padding: 0;
-      border: none;
+      border: 0;
     }
   }
 }
@@ -111,7 +111,7 @@
     }
 
     .block:last-of-type {
-      border: none;
+      border: 0;
     }
   }
 
diff --git a/app/assets/stylesheets/framework/tables.scss b/app/assets/stylesheets/framework/tables.scss
index 4dd31bf28cd..5bde96caf42 100644
--- a/app/assets/stylesheets/framework/tables.scss
+++ b/app/assets/stylesheets/framework/tables.scss
@@ -33,7 +33,7 @@ table {
       th {
         background-color: $gray-light;
         font-weight: $gl-font-weight-normal;
-        border-bottom: none;
+        border-bottom: 0;
 
         &.wide {
           width: 55%;
diff --git a/app/assets/stylesheets/framework/timeline.scss b/app/assets/stylesheets/framework/timeline.scss
index f718ec4bcad..373f35e71d8 100644
--- a/app/assets/stylesheets/framework/timeline.scss
+++ b/app/assets/stylesheets/framework/timeline.scss
@@ -21,7 +21,7 @@
   }
 
   &.text-file .diff-file {
-    border-bottom: none;
+    border-bottom: 0;
   }
 }
 
@@ -66,5 +66,5 @@
 
 .discussion .timeline-entry {
   margin: 0;
-  border-right: none;
+  border-right: 0;
 }
diff --git a/app/assets/stylesheets/framework/tw_bootstrap_variables.scss b/app/assets/stylesheets/framework/tw_bootstrap_variables.scss
index 3ea77eb7a43..a23131e0818 100644
--- a/app/assets/stylesheets/framework/tw_bootstrap_variables.scss
+++ b/app/assets/stylesheets/framework/tw_bootstrap_variables.scss
@@ -164,3 +164,36 @@ $pre-border-color: $border-color;
 $table-bg-accent: $gray-light;
 
 $zindex-popover: 900;
+
+//== Modals
+//
+//##
+
+//** Padding applied to the modal body
+$modal-inner-padding: $gl-padding;
+
+//** Padding applied to the modal title
+$modal-title-padding: $gl-padding;
+//** Modal title line-height
+// $modal-title-line-height:     $line-height-base
+
+//** Background color of modal content area
+$modal-content-bg: $gray-light;
+$modal-body-bg: $white-light;
+//** Modal content border color
+// $modal-content-border-color:                   rgba(0,0,0,.2)
+//** Modal content border color **for IE8**
+// $modal-content-fallback-border-color:          #999
+
+//** Modal backdrop background color
+// $modal-backdrop-bg:           #000
+//** Modal backdrop opacity
+// $modal-backdrop-opacity:      .5
+//** Modal header border color
+// $modal-header-border-color:   #e5e5e5
+//** Modal footer border color
+// $modal-footer-border-color:   $modal-header-border-color
+
+// $modal-lg:                    900px
+// $modal-md:                    600px
+// $modal-sm:                    300px
diff --git a/app/assets/stylesheets/framework/typography.scss b/app/assets/stylesheets/framework/typography.scss
index 3c0b4c82d19..0817cce114c 100644
--- a/app/assets/stylesheets/framework/typography.scss
+++ b/app/assets/stylesheets/framework/typography.scss
@@ -167,7 +167,7 @@
 
     &.plain-readme {
       background: none;
-      border: none;
+      border: 0;
       padding: 0;
       margin: 0;
       font-size: 14px;
diff --git a/app/assets/stylesheets/framework/variables.scss b/app/assets/stylesheets/framework/variables.scss
index 8ab48e4844f..cb2a237f574 100644
--- a/app/assets/stylesheets/framework/variables.scss
+++ b/app/assets/stylesheets/framework/variables.scss
@@ -163,7 +163,7 @@ $gl-text-color: #2e2e2e;
 $gl-text-color-secondary: #707070;
 $gl-text-color-tertiary: #949494;
 $gl-text-color-quaternary: #d6d6d6;
-$gl-text-color-inverted: rgba(255, 255, 255, 1.0);
+$gl-text-color-inverted: rgba(255, 255, 255, 1);
 $gl-text-color-secondary-inverted: rgba(255, 255, 255, .85);
 $gl-text-green: $green-600;
 $gl-text-green-hover: $green-700;
@@ -486,8 +486,8 @@ $callout-success-color: $green-700;
 /*
 * Commit Page
 */
-$commit-max-width-marker-color: rgba(0, 0, 0, 0.0);
-$commit-message-text-area-bg: rgba(0, 0, 0, 0.0);
+$commit-max-width-marker-color: rgba(0, 0, 0, 0);
+$commit-message-text-area-bg: rgba(0, 0, 0, 0);
 
 /*
 * Common
@@ -719,3 +719,10 @@ Image Commenting cursor
 */
 $image-comment-cursor-left-offset: 12;
 $image-comment-cursor-top-offset: 30;
+
+/*
+Popup
+*/
+$popup-triangle-size: 15px;
+$popup-triangle-border-size: 1px;
+$popup-box-shadow-color: rgba(90, 90, 90, 0.05);
diff --git a/app/assets/stylesheets/framework/wells.scss b/app/assets/stylesheets/framework/wells.scss
index 5f9756bf58a..68824ff8418 100644
--- a/app/assets/stylesheets/framework/wells.scss
+++ b/app/assets/stylesheets/framework/wells.scss
@@ -52,6 +52,37 @@
   .label.label-gray {
     background-color: $well-expand-item;
   }
+
+  .branches {
+    display: inline;
+  }
+
+  .branch-link {
+    margin-bottom: 2px;
+  }
+
+  .limit-box {
+    cursor: pointer;
+    display: inline-flex;
+    align-items: center;
+    background-color: $red-100;
+    border-radius: $border-radius-default;
+    text-align: center;
+
+    &:hover {
+      background-color: $red-200;
+    }
+
+    .limit-icon {
+      margin: 0 8px;
+    }
+
+    .limit-message {
+      line-height: 16px;
+      margin-right: 8px;
+      font-size: 12px;
+    }
+  }
 }
 
 .light-well {
diff --git a/app/assets/stylesheets/framework/zen.scss b/app/assets/stylesheets/framework/zen.scss
index 32a0feb1c4b..5a4d3ba0ee9 100644
--- a/app/assets/stylesheets/framework/zen.scss
+++ b/app/assets/stylesheets/framework/zen.scss
@@ -9,7 +9,7 @@
     z-index: 1031;
 
     textarea {
-      border: none;
+      border: 0;
       box-shadow: none;
       border-radius: 0;
       color: $black;
diff --git a/app/assets/stylesheets/pages/builds.scss b/app/assets/stylesheets/pages/builds.scss
index 46978be8ba0..27b10b536a2 100644
--- a/app/assets/stylesheets/pages/builds.scss
+++ b/app/assets/stylesheets/pages/builds.scss
@@ -48,7 +48,7 @@
     overflow-x: auto;
     font-size: 12px;
     border-radius: 0;
-    border: none;
+    border: 0;
 
     .bash {
       display: block;
diff --git a/app/assets/stylesheets/pages/ci_projects.scss b/app/assets/stylesheets/pages/ci_projects.scss
index bf6a48889bf..fbe1f3081a0 100644
--- a/app/assets/stylesheets/pages/ci_projects.scss
+++ b/app/assets/stylesheets/pages/ci_projects.scss
@@ -36,7 +36,7 @@
     pre.commit-message {
       background: none;
       padding: 0;
-      border: none;
+      border: 0;
       margin: 20px 0;
       border-radius: 0;
     }
diff --git a/app/assets/stylesheets/pages/clusters.scss b/app/assets/stylesheets/pages/clusters.scss
index 5c91579c69c..e5b9e1f2de6 100644
--- a/app/assets/stylesheets/pages/clusters.scss
+++ b/app/assets/stylesheets/pages/clusters.scss
@@ -3,3 +3,8 @@
     background-color: $white-light;
   }
 }
+
+.cluster-applications-table {
+  // Wait for the Vue to kick-in and render the applications block
+  min-height: 302px;
+}
diff --git a/app/assets/stylesheets/pages/commits.scss b/app/assets/stylesheets/pages/commits.scss
index ee3ca246374..b1850be8a5f 100644
--- a/app/assets/stylesheets/pages/commits.scss
+++ b/app/assets/stylesheets/pages/commits.scss
@@ -1,6 +1,6 @@
 .commit-description {
   background: none;
-  border: none;
+  border: 0;
   padding: 0;
   margin-top: 10px;
   word-break: normal;
@@ -247,7 +247,7 @@
     word-break: normal;
 
     pre {
-      border: none;
+      border: 0;
       background: inherit;
       padding: 0;
       margin: 0;
diff --git a/app/assets/stylesheets/pages/cycle_analytics.scss b/app/assets/stylesheets/pages/cycle_analytics.scss
index 82d9be29201..292e0ad394b 100644
--- a/app/assets/stylesheets/pages/cycle_analytics.scss
+++ b/app/assets/stylesheets/pages/cycle_analytics.scss
@@ -80,7 +80,7 @@
   .panel {
     .content-block {
       padding: 24px 0;
-      border-bottom: none;
+      border-bottom: 0;
       position: relative;
 
       @media (max-width: $screen-xs-max) {
@@ -222,11 +222,11 @@
       }
 
       &:first-child {
-        border-top: none;
+        border-top: 0;
       }
 
       &:last-child {
-        border-bottom: none;
+        border-bottom: 0;
       }
 
       .stage-nav-item-cell {
@@ -290,7 +290,7 @@
     border-bottom: 1px solid $gray-darker;
 
     &:last-child {
-      border-bottom: none;
+      border-bottom: 0;
       margin-bottom: 0;
     }
 
diff --git a/app/assets/stylesheets/pages/detail_page.scss b/app/assets/stylesheets/pages/detail_page.scss
index 3d9eff35583..538e50ee306 100644
--- a/app/assets/stylesheets/pages/detail_page.scss
+++ b/app/assets/stylesheets/pages/detail_page.scss
@@ -3,6 +3,7 @@
   border-bottom: 1px solid $border-color;
   color: $gl-text-color;
   line-height: 34px;
+  display: flex;
 
   a {
     color: $gl-text-color;
diff --git a/app/assets/stylesheets/pages/diff.scss b/app/assets/stylesheets/pages/diff.scss
index faa3d1fb4d5..bce94e09367 100644
--- a/app/assets/stylesheets/pages/diff.scss
+++ b/app/assets/stylesheets/pages/diff.scss
@@ -47,7 +47,7 @@
     table {
       width: 100%;
       font-family: $monospace_font;
-      border: none;
+      border: 0;
       border-collapse: separate;
       margin: 0;
       padding: 0;
@@ -105,7 +105,7 @@
     .new_line {
       @include user-select(none);
       margin: 0;
-      border: none;
+      border: 0;
       padding: 0 5px;
       border-right: 1px solid;
       text-align: right;
@@ -133,7 +133,7 @@
       display: block;
       margin: 0;
       padding: 0 1.5em;
-      border: none;
+      border: 0;
       position: relative;
 
       &.parallel {
@@ -359,7 +359,7 @@
       cursor: pointer;
 
       &:first-child {
-        border-left: none;
+        border-left: 0;
       }
 
       &:hover {
@@ -388,7 +388,7 @@
 
 .file-content .diff-file {
   margin: 0;
-  border: none;
+  border: 0;
 }
 
 .diff-wrap-lines .line_content {
@@ -400,7 +400,7 @@
 }
 
 .files-changed {
-  border-bottom: none;
+  border-bottom: 0;
 }
 
 .diff-stats-summary-toggler {
diff --git a/app/assets/stylesheets/pages/editor.scss b/app/assets/stylesheets/pages/editor.scss
index edfafa79c44..c586dab4cf2 100644
--- a/app/assets/stylesheets/pages/editor.scss
+++ b/app/assets/stylesheets/pages/editor.scss
@@ -3,13 +3,13 @@
     border-top: 1px solid $border-color;
     border-right: 1px solid $border-color;
     border-left: 1px solid $border-color;
-    border-bottom: none;
+    border-bottom: 0;
     border-radius: $border-radius-small $border-radius-small 0 0;
     background: $gray-normal;
   }
 
   #editor {
-    border: none;
+    border: 0;
     border-radius: 0;
     height: 500px;
     margin: 0;
@@ -171,7 +171,7 @@
     width: 100%;
     margin: 5px 0;
     padding: 0;
-    border-left: none;
+    border-left: 0;
   }
 }
 
diff --git a/app/assets/stylesheets/pages/environments.scss b/app/assets/stylesheets/pages/environments.scss
index b5b0f3d9dfa..b0795353ec1 100644
--- a/app/assets/stylesheets/pages/environments.scss
+++ b/app/assets/stylesheets/pages/environments.scss
@@ -117,7 +117,7 @@
     }
 
     .no-btn {
-      border: none;
+      border: 0;
       background: none;
       outline: none;
       width: 100%;
@@ -133,11 +133,11 @@
 }
 
 .folder-row {
-  border-left: none;
-  border-right: none;
+  border-left: 0;
+  border-right: 0;
 
   @media (min-width: $screen-sm-max) {
-    border-top: none;
+    border-top: 0;
   }
 }
 
@@ -173,7 +173,7 @@
 
 .prometheus-graph-overlay {
   fill: none;
-  opacity: 0.0;
+  opacity: 0;
   pointer-events: all;
 }
 
@@ -256,12 +256,6 @@
   padding: 0;
   padding-bottom: 100%;
 
-  .label-axis-text {
-    fill: $black;
-    font-weight: $gl-font-weight-normal;
-    font-size: 10px;
-  }
-
   .text-metric-usage,
   .legend-metric-title {
     fill: $black;
@@ -276,19 +270,33 @@
     left: 0;
     top: 0;
 
-    .label-axis-text,
-    .text-metric-usage {
+    text {
+      fill: $gl-text-color;
+      stroke-width: 0;
+    }
+
+    .text-metric-bold {
+      font-weight: $gl-font-weight-bold;
+    }
+
+    .label-axis-text {
       fill: $black;
       font-weight: $gl-font-weight-normal;
-      font-size: 12px;
+      font-size: 10px;
     }
 
     .legend-axis-text {
       fill: $black;
     }
 
-    .tick > text {
-      font-size: 12px;
+    .tick {
+      > line {
+        stroke: $gray-darker;
+      }
+
+      > text {
+        font-size: 12px;
+      }
     }
 
     .text-metric-title {
diff --git a/app/assets/stylesheets/pages/events.scss b/app/assets/stylesheets/pages/events.scss
index 1723d716805..eea8b7dd193 100644
--- a/app/assets/stylesheets/pages/events.scss
+++ b/app/assets/stylesheets/pages/events.scss
@@ -85,7 +85,7 @@
       }
 
       pre {
-        border: none;
+        border: 0;
         background: $gray-light;
         border-radius: 0;
         color: $events-pre-color;
@@ -128,14 +128,14 @@
     }
   }
 
-  &:last-child { border: none; }
+  &:last-child { border: 0; }
 
   .event_commits {
     li {
       &.commit {
         background: transparent;
         padding: 0;
-        border: none;
+        border: 0;
 
         .commit-row-title {
           font-size: $gl-font-size;
diff --git a/app/assets/stylesheets/pages/issuable.scss b/app/assets/stylesheets/pages/issuable.scss
index 7059a4cfe85..7a5dab16561 100644
--- a/app/assets/stylesheets/pages/issuable.scss
+++ b/app/assets/stylesheets/pages/issuable.scss
@@ -6,28 +6,20 @@
 }
 
 .issuable-warning-icon {
-  color: $orange-600;
   background-color: $orange-100;
   border-radius: $border-radius-default;
-  padding: 5px;
   margin: 0 $btn-side-margin 0 0;
   width: $issuable-warning-size;
   height: $issuable-warning-size;
   text-align: center;
 
-  &:first-of-type {
-    margin-right: $issuable-warning-icon-margin;
+  .icon {
+    fill: $orange-600;
+    vertical-align: text-bottom;
   }
-}
-
-.sidebar-item-icon {
-  border-radius: $border-radius-default;
-  padding: 5px;
-  margin: 0 3px 0 -4px;
 
-  &.is-active {
-    color: $orange-600;
-    background-color: $orange-50;
+  &:first-of-type {
+    margin-right: $issuable-warning-icon-margin;
   }
 }
 
@@ -79,7 +71,7 @@
   .title {
     padding: 0;
     margin-bottom: 16px;
-    border-bottom: none;
+    border-bottom: 0;
   }
 
   .btn-edit {
@@ -131,12 +123,12 @@
   top: $header-height;
   bottom: 0;
   right: 0;
-  transition: width .3s;
+  transition: width $right-sidebar-transition-duration;
   background: $gray-light;
   z-index: 200;
   overflow: hidden;
 
-  a,
+  a:not(.btn-retry),
   .btn-link {
     color: inherit;
   }
@@ -164,7 +156,7 @@
     }
 
     &:last-child {
-      border: none;
+      border: 0;
     }
 
     span {
@@ -338,7 +330,7 @@
     .block {
       width: $gutter_collapsed_width - 2px;
       padding: 15px 0 0;
-      border-bottom: none;
+      border-bottom: 0;
       overflow: hidden;
     }
 
@@ -399,7 +391,7 @@
       }
 
       .btn-clipboard {
-        border: none;
+        border: 0;
         color: $issuable-sidebar-color;
 
         &:hover {
@@ -613,6 +605,8 @@
   float: none;
   display: inline-block;
   margin-top: 0;
+  height: auto;
+  align-self: center;
 
   @media (max-width: $screen-xs-max) {
     position: absolute;
@@ -626,6 +620,8 @@
   padding-left: 45px;
   padding-right: 45px;
   line-height: 35px;
+  display: flex;
+  flex-grow: 1;
 
   @media (min-width: $screen-sm-min) {
     float: left;
@@ -637,11 +633,12 @@
 .issuable-actions {
   @include new-style-dropdown;
 
-  padding-top: 10px;
+  align-self: center;
+  flex-shrink: 0;
+  flex: 0 0 auto;
 
   @media (min-width: $screen-sm-min) {
     float: right;
-    padding-top: 0;
   }
 }
 
@@ -655,8 +652,9 @@
 
 .issuable-meta {
   display: inline-block;
-  line-height: 18px;
   font-size: 14px;
+  line-height: 24px;
+  align-self: center;
 }
 
 .js-issuable-selector-wrap {
diff --git a/app/assets/stylesheets/pages/issues.scss b/app/assets/stylesheets/pages/issues.scss
index e8ca5cedaee..8bb68ad2425 100644
--- a/app/assets/stylesheets/pages/issues.scss
+++ b/app/assets/stylesheets/pages/issues.scss
@@ -134,11 +134,24 @@ ul.related-merge-requests > li {
 }
 
 @media (max-width: $screen-xs-max) {
-  .issue-btn-group {
-    width: 100%;
+  .detail-page-header,
+  .issuable-header {
+    display: block;
+
+    .issuable-meta {
+      line-height: 18px;
+    }
+  }
 
-    .btn {
+  .issuable-actions {
+    margin-top: 10px;
+
+    .issue-btn-group {
       width: 100%;
+
+      .btn {
+        width: 100%;
+      }
     }
   }
 }
diff --git a/app/assets/stylesheets/pages/login.scss b/app/assets/stylesheets/pages/login.scss
index 92d49bd864a..b7985c4dea5 100644
--- a/app/assets/stylesheets/pages/login.scss
+++ b/app/assets/stylesheets/pages/login.scss
@@ -139,7 +139,7 @@
       border-left: 1px solid $border-color;
 
       &:first-of-type {
-        border-left: none;
+        border-left: 0;
         border-top-left-radius: $border-radius-default;
       }
 
@@ -165,7 +165,7 @@
         border-bottom: 1px solid $border-color;
 
         a {
-          border: none;
+          border: 0;
           border-bottom: 2px solid $link-underline-blue;
           margin-right: 0;
           color: $black;
diff --git a/app/assets/stylesheets/pages/merge_conflicts.scss b/app/assets/stylesheets/pages/merge_conflicts.scss
index dbf3e2b763c..04bde64c752 100644
--- a/app/assets/stylesheets/pages/merge_conflicts.scss
+++ b/app/assets/stylesheets/pages/merge_conflicts.scss
@@ -262,7 +262,7 @@ $colors: (
     .editor {
       pre {
         height: 350px;
-        border: none;
+        border: 0;
         border-radius: 0;
         margin-bottom: 0;
       }
diff --git a/app/assets/stylesheets/pages/merge_requests.scss b/app/assets/stylesheets/pages/merge_requests.scss
index 6e485ebad1b..5832cf4637f 100644
--- a/app/assets/stylesheets/pages/merge_requests.scss
+++ b/app/assets/stylesheets/pages/merge_requests.scss
@@ -150,18 +150,6 @@
     display: block;
   }
 
-  .mr-widget-body {
-    @include clearfix;
-
-    &.media > *:first-child {
-      margin-right: 10px;
-    }
-
-    .approve-btn {
-      margin-right: 5px;
-    }
-  }
-
   .mr-widget-pipeline-graph {
     padding: 0 4px;
 
@@ -169,9 +157,8 @@
       z-index: 300;
     }
 
-    .ci-action-icon-wrapper svg {
-      width: 16px;
-      height: 16px;
+    .ci-action-icon-wrapper {
+      line-height: 16px;
     }
   }
 
@@ -195,10 +182,6 @@
     overflow: hidden;
     word-break: break-all;
 
-    &.media > *:first-child {
-      margin-right: 10px;
-    }
-
     &.label-truncated {
       position: relative;
       display: inline-block;
@@ -216,6 +199,18 @@
         background-color: $gray-light;
       }
     }
+  }
+
+  .mr-widget-body {
+    @include clearfix;
+
+    &.media > *:first-child {
+      margin-right: 10px;
+    }
+
+    .approve-btn {
+      margin-right: 5px;
+    }
 
     h4 {
       float: left;
@@ -239,10 +234,6 @@
       margin-right: 7px;
     }
 
-    .approve-btn {
-      margin-right: 5px;
-    }
-
     label {
       font-weight: $gl-font-weight-normal;
     }
@@ -342,17 +333,6 @@
     }
   }
 
-  .mini-pipeline-graph-dropdown-menu .mini-pipeline-graph-dropdown-item {
-    display: flex;
-    align-items: center;
-
-    .ci-status-text,
-    .ci-status-icon {
-      top: 0;
-      margin-right: 10px;
-    }
-  }
-
   .mr-widget-help {
     padding: 10px 16px 10px 48px;
     font-style: italic;
diff --git a/app/assets/stylesheets/pages/note_form.scss b/app/assets/stylesheets/pages/note_form.scss
index 5127307c5e7..1e6992cb65e 100644
--- a/app/assets/stylesheets/pages/note_form.scss
+++ b/app/assets/stylesheets/pages/note_form.scss
@@ -7,7 +7,7 @@
 
 .diff-file .diff-content {
   tr.line_holder:hover > td .line_note_link {
-    opacity: 1.0;
+    opacity: 1;
     filter: alpha(opacity = 100);
   }
 }
@@ -16,7 +16,7 @@
 .discussion {
   .new-note {
     margin: 0;
-    border: none;
+    border: 0;
   }
 }
 
@@ -106,23 +106,57 @@
   background-color: $orange-100;
   border-radius: $border-radius-default $border-radius-default 0 0;
   border: 1px solid $border-gray-normal;
-  border-bottom: none;
+  border-bottom: 0;
   padding: 3px 12px;
   margin: auto;
   align-items: center;
 
+  .icon {
+    margin-right: $issuable-warning-icon-margin;
+    vertical-align: text-bottom;
+    fill: $orange-600;
+  }
+
   + .md-area {
     border-top-left-radius: 0;
     border-top-right-radius: 0;
   }
+
+  .disabled-comment {
+    border: 0;
+    border-radius: $label-border-radius;
+    padding-top: $gl-vert-padding;
+    padding-bottom: $gl-vert-padding;
+
+    .icon svg {
+      position: relative;
+      top: 2px;
+      margin-right: $btn-xs-side-margin;
+      width: $gl-font-size;
+      height: $gl-font-size;
+      fill: $orange-600;
+    }
+  }
 }
 
-.sidebar-item-value {
-  .fa {
-    background-color: inherit;
+.sidebar-item-icon {
+  border-radius: $border-radius-default;
+  margin: 0 3px 0 -4px;
+  vertical-align: middle;
+
+  &.is-active {
+    fill: $orange-600;
   }
 }
 
+.sidebar-collapsed-icon .sidebar-item-icon {
+  margin: 0;
+}
+
+.sidebar-item-value .sidebar-item-icon {
+  fill: $theme-gray-700;
+}
+
 .sidebar-item-warning-message {
   line-height: 1.5;
   padding: 16px;
diff --git a/app/assets/stylesheets/pages/notes.scss b/app/assets/stylesheets/pages/notes.scss
index ca363c6eac4..9537eeeee97 100644
--- a/app/assets/stylesheets/pages/notes.scss
+++ b/app/assets/stylesheets/pages/notes.scss
@@ -331,7 +331,7 @@ ul.notes {
 
     td {
       border: 1px solid $white-normal;
-      border-left: none;
+      border-left: 0;
 
       &.notes_line {
         vertical-align: middle;
@@ -476,6 +476,10 @@ ul.notes {
     float: none;
     margin-left: 0;
   }
+
+  .btn-group > .discussion-next-btn {
+    margin-left: -1px;
+  }
 }
 
 .note-actions {
@@ -666,7 +670,7 @@ ul.notes {
     .timeline-entry-inner {
       padding-left: $gl-padding;
       padding-right: $gl-padding;
-      border-bottom: none;
+      border-bottom: 0;
     }
   }
 }
@@ -679,7 +683,7 @@ ul.notes {
   padding: 90px 0;
 
   &.discussion-locked {
-    border: none;
+    border: 0;
     background-color: $white-light;
   }
 
@@ -759,7 +763,7 @@ ul.notes {
   top: 0;
   padding: 0;
   background-color: transparent;
-  border: none;
+  border: 0;
   outline: 0;
   color: $gray-darkest;
   transition: color $general-hover-transition-duration $general-hover-transition-curve;
diff --git a/app/assets/stylesheets/pages/pipelines.scss b/app/assets/stylesheets/pages/pipelines.scss
index 2a8cbc61af7..cb24274c612 100644
--- a/app/assets/stylesheets/pages/pipelines.scss
+++ b/app/assets/stylesheets/pages/pipelines.scss
@@ -179,7 +179,7 @@
    * Play button with icon in dropdowns
    */
   .no-btn {
-    border: none;
+    border: 0;
     background: none;
     outline: none;
     width: 100%;
@@ -288,7 +288,7 @@
 .pipeline-actions {
   @include new-style-dropdown;
 
-  border-bottom: none;
+  border-bottom: 0;
 }
 
 .tab-pane {
@@ -318,7 +318,7 @@
   }
 
   .build-log {
-    border: none;
+    border: 0;
     line-height: initial;
   }
 }
@@ -386,13 +386,13 @@
         // Remove right connecting horizontal line from first build in last stage
         &:first-child {
           &::after {
-            border: none;
+            border: 0;
           }
         }
         // Remove right curved connectors from all builds in last stage
         &:not(:first-child) {
           &::after {
-            border: none;
+            border: 0;
           }
         }
         // Remove opposite curve
@@ -409,7 +409,7 @@
         // Remove left curved connectors from all builds in first stage
         &:not(:first-child) {
           &::before {
-            border: none;
+            border: 0;
           }
         }
         // Remove opposite curve
@@ -518,7 +518,7 @@
 
     .dropdown-menu-toggle {
       background-color: transparent;
-      border: none;
+      border: 0;
       padding: 0;
 
       &:focus {
@@ -823,6 +823,11 @@ button.mini-pipeline-graph-dropdown-toggle {
         margin-left: 2px;
         display: inline-block;
 
+        &::after {
+          content: '';
+          display: block;
+        }
+
         @media (max-width: $screen-xs-max) {
           max-width: 60%;
         }
@@ -951,7 +956,7 @@ button.mini-pipeline-graph-dropdown-toggle {
 
 .terminal-container {
   .content-block {
-    border-bottom: none;
+    border-bottom: 0;
   }
 
   #terminal {
diff --git a/app/assets/stylesheets/pages/profile.scss b/app/assets/stylesheets/pages/profile.scss
index eab39f698c3..28dc71dc641 100644
--- a/app/assets/stylesheets/pages/profile.scss
+++ b/app/assets/stylesheets/pages/profile.scss
@@ -113,7 +113,7 @@
 
   li {
     padding: 3px 0;
-    border: none;
+    border: 0;
   }
 }
 
diff --git a/app/assets/stylesheets/pages/projects.scss b/app/assets/stylesheets/pages/projects.scss
index b0c3474e3d5..aaad6dbba8e 100644
--- a/app/assets/stylesheets/pages/projects.scss
+++ b/app/assets/stylesheets/pages/projects.scss
@@ -80,7 +80,7 @@
 
 .project-feature-settings {
   background: $gray-lighter;
-  border-top: none;
+  border-top: 0;
   margin-bottom: 16px;
 }
 
@@ -128,7 +128,7 @@
 
 .project-feature-toggle {
   position: relative;
-  border: none;
+  border: 0;
   outline: 0;
   display: block;
   width: 100px;
@@ -483,7 +483,7 @@ a.deploy-project-label {
   flex: 1;
   padding: 0;
   background: transparent;
-  border: none;
+  border: 0;
   line-height: 34px;
   margin: 0;
 
@@ -1012,7 +1012,7 @@ pre.light-well {
     margin: 0;
     border-radius: 0 0 1px 1px;
     padding: 20px 0;
-    border: none;
+    border: 0;
   }
 
   .table-bordered {
@@ -1165,7 +1165,7 @@ pre.light-well {
   table-layout: fixed;
 
   &.table-responsive {
-    border: none;
+    border: 0;
   }
 
   .variable-key {
diff --git a/app/assets/stylesheets/pages/repo.scss b/app/assets/stylesheets/pages/repo.scss
index 1bb4e3cc345..d93c51d5448 100644
--- a/app/assets/stylesheets/pages/repo.scss
+++ b/app/assets/stylesheets/pages/repo.scss
@@ -64,7 +64,7 @@
 
     .monaco-editor.vs {
       .current-line {
-        border: none;
+        border: 0;
         background: $well-light-border;
       }
 
@@ -139,7 +139,7 @@
 
         &.active {
           background: $white-light;
-          border-bottom: none;
+          border-bottom: 0;
         }
 
         a {
@@ -181,7 +181,7 @@
         &.tabs-divider {
           width: 100%;
           background-color: $white-light;
-          border-right: none;
+          border-right: 0;
           border-top-right-radius: 2px;
         }
       }
@@ -298,3 +298,7 @@
     width: 100%;
   }
 }
+
+.multi-file-table-col-name {
+  width: 350px;
+}
diff --git a/app/assets/stylesheets/pages/search.scss b/app/assets/stylesheets/pages/search.scss
index eed711b1b66..fe455a04960 100644
--- a/app/assets/stylesheets/pages/search.scss
+++ b/app/assets/stylesheets/pages/search.scss
@@ -5,7 +5,7 @@
     margin-bottom: $gl-padding;
 
     &:last-child {
-      border-bottom: none;
+      border-bottom: 0;
     }
   }
 
@@ -57,7 +57,7 @@ input[type="checkbox"]:hover {
   }
 
   .search-input {
-    border: none;
+    border: 0;
     font-size: 14px;
     padding: 0 20px 0 0;
     margin-left: 5px;
@@ -78,10 +78,6 @@ input[type="checkbox"]:hover {
   }
 
   .search-input-wrap {
-    // Fallback if flexbox is not supported
-    display: inline-block;
-    width: 100%;
-
     .search-icon,
     .clear-icon {
       position: absolute;
diff --git a/app/assets/stylesheets/pages/settings.scss b/app/assets/stylesheets/pages/settings.scss
index 8b9b47a41bc..5d630c7d61e 100644
--- a/app/assets/stylesheets/pages/settings.scss
+++ b/app/assets/stylesheets/pages/settings.scss
@@ -249,3 +249,22 @@
     }
   }
 }
+
+.modal-doorkeepr-auth,
+.doorkeeper-app-form {
+  .scope-description {
+    color: $theme-gray-700;
+  }
+}
+
+.modal-doorkeepr-auth {
+  .modal-body {
+    padding: $gl-padding;
+  }
+}
+
+.doorkeeper-app-form {
+  .scope-description {
+    margin: 0 0 5px 17px;
+  }
+}
diff --git a/app/assets/stylesheets/pages/todos.scss b/app/assets/stylesheets/pages/todos.scss
index 6c8d87185e9..2139a029fc7 100644
--- a/app/assets/stylesheets/pages/todos.scss
+++ b/app/assets/stylesheets/pages/todos.scss
@@ -141,7 +141,7 @@
       }
 
       pre {
-        border: none;
+        border: 0;
         background: $gray-light;
         border-radius: 0;
         color: $todo-body-pre-color;
diff --git a/app/assets/stylesheets/pages/tree.scss b/app/assets/stylesheets/pages/tree.scss
index e2f6e511c86..65b334662c2 100644
--- a/app/assets/stylesheets/pages/tree.scss
+++ b/app/assets/stylesheets/pages/tree.scss
@@ -125,7 +125,7 @@
         color: $white-normal;
       }
 
-      &:hover {
+      &:hover:not(.tree-truncated-warning) {
         td {
           background-color: $row-hover;
           border-top: 1px solid $row-hover-border;
@@ -198,6 +198,11 @@
     }
   }
 
+  .tree-truncated-warning {
+    color: $orange-600;
+    background-color: $orange-100;
+  }
+
   .tree-time-ago {
     min-width: 135px;
     color: $gl-text-color-secondary;
@@ -252,7 +257,7 @@
     margin-top: 20px;
     padding: 0;
     border-top: 1px solid $white-dark;
-    border-bottom: none;
+    border-bottom: 0;
   }
 
   .commit-stats li {
diff --git a/app/controllers/concerns/issuable_actions.rb b/app/controllers/concerns/issuable_actions.rb
index 1916020bdd9..5b9c016bb8b 100644
--- a/app/controllers/concerns/issuable_actions.rb
+++ b/app/controllers/concerns/issuable_actions.rb
@@ -9,9 +9,7 @@ module IssuableActions
 
   def show
     respond_to do |format|
-      format.html do
-        render show_view
-      end
+      format.html
       format.json do
         render json: serializer.represent(issuable, serializer: params[:serializer])
       end
@@ -152,10 +150,6 @@ module IssuableActions
     end
   end
 
-  def show_view
-    'show'
-  end
-
   def serializer
     raise NotImplementedError
   end
diff --git a/app/controllers/concerns/issuable_collections.rb b/app/controllers/concerns/issuable_collections.rb
index 521d6e8eca5..aa5bcbef7ea 100644
--- a/app/controllers/concerns/issuable_collections.rb
+++ b/app/controllers/concerns/issuable_collections.rb
@@ -4,60 +4,46 @@ module IssuableCollections
   include Gitlab::IssuableMetadata
 
   included do
-    helper_method :issues_finder
-    helper_method :merge_requests_finder
+    helper_method :finder
   end
 
   private
 
   # rubocop:disable Cop/ModuleWithInstanceVariables
-  def set_issues_index
-    @collection_type    = "Issue"
-    @issues             = issues_collection
-    @issues             = @issues.page(params[:page])
-    @issuable_meta_data = issuable_meta_data(@issues, @collection_type)
-    @total_pages        = issues_page_count(@issues)
+  def set_issuables_index
+    @issuables          = issuables_collection
+    @issuables          = @issuables.page(params[:page])
+    @issuable_meta_data = issuable_meta_data(@issuables, collection_type)
+    @total_pages        = issuable_page_count
 
-    return if redirect_out_of_range(@issues, @total_pages)
+    return if redirect_out_of_range(@total_pages)
 
     if params[:label_name].present?
-      @labels = LabelsFinder.new(current_user, project_id: @project.id, title: params[:label_name]).execute
+      labels_params = { project_id: @project.id, title: params[:label_name] }
+      @labels = LabelsFinder.new(current_user, labels_params).execute
     end
 
     @users = []
-  end
-  # rubocop:enable Cop/ModuleWithInstanceVariables
-
-  def issues_collection
-    issues_finder.execute.preload(:project, :author, :assignees, :labels, :milestone, project: :namespace)
-  end
-
-  def merge_requests_collection
-    merge_requests_finder.execute.preload(
-      :source_project,
-      :target_project,
-      :author,
-      :assignee,
-      :labels,
-      :milestone,
-      head_pipeline: :project,
-      target_project: :namespace,
-      merge_request_diff: :merge_request_diff_commits
-    )
-  end
+    if params[:assignee_id].present?
+      assignee = User.find_by_id(params[:assignee_id])
+      @users.push(assignee) if assignee
+    end
 
-  def issues_finder
-    @issues_finder ||= issuable_finder_for(IssuesFinder)
+    if params[:author_id].present?
+      author = User.find_by_id(params[:author_id])
+      @users.push(author) if author
+    end
   end
+  # rubocop:enable Cop/ModuleWithInstanceVariables
 
-  def merge_requests_finder
-    @merge_requests_finder ||= issuable_finder_for(MergeRequestsFinder)
+  def issuables_collection
+    finder.execute.preload(preload_for_collection)
   end
 
-  def redirect_out_of_range(relation, total_pages)
+  def redirect_out_of_range(total_pages)
     return false if total_pages.zero?
 
-    out_of_range = relation.current_page > total_pages
+    out_of_range = @issuables.current_page > total_pages
 
     if out_of_range
       redirect_to(url_for(params.merge(page: total_pages, only_path: true)))
@@ -66,12 +52,8 @@ module IssuableCollections
     out_of_range
   end
 
-  def issues_page_count(relation)
-    page_count_for_relation(relation, issues_finder.row_count)
-  end
-
-  def merge_requests_page_count(relation)
-    page_count_for_relation(relation, merge_requests_finder.row_count)
+  def issuable_page_count
+    page_count_for_relation(@issuables, finder.row_count)
   end
 
   def page_count_for_relation(relation, row_count)
@@ -149,4 +131,31 @@ module IssuableCollections
     else value
     end
   end
+
+  def finder
+    return @finder if defined?(@finder)
+
+    @finder = issuable_finder_for(@finder_type)
+  end
+
+  def collection_type
+    @collection_type ||= case finder
+                         when IssuesFinder
+                           'Issue'
+                         when MergeRequestsFinder
+                           'MergeRequest'
+                         end
+  end
+
+  def preload_for_collection
+    @preload_for_collection ||= case collection_type
+                                when 'Issue'
+                                  [:project, :author, :assignees, :labels, :milestone, project: :namespace]
+                                when 'MergeRequest'
+                                  [
+                                    :source_project, :target_project, :author, :assignee, :labels, :milestone,
+                                    head_pipeline: :project, target_project: :namespace, merge_request_diff: :merge_request_diff_commits
+                                  ]
+                                end
+  end
 end
diff --git a/app/controllers/concerns/issues_action.rb b/app/controllers/concerns/issues_action.rb
index b6803b14fe1..4423c7fa0aa 100644
--- a/app/controllers/concerns/issues_action.rb
+++ b/app/controllers/concerns/issues_action.rb
@@ -4,14 +4,14 @@ module IssuesAction
 
   # rubocop:disable Cop/ModuleWithInstanceVariables
   def issues
-    @label = issues_finder.labels.first
+    @finder_type = IssuesFinder
+    @label = finder.labels.first
 
-    @issues = issues_collection
+    @issues = issuables_collection
               .non_archived
               .page(params[:page])
 
-    @collection_type    = "Issue"
-    @issuable_meta_data = issuable_meta_data(@issues, @collection_type)
+    @issuable_meta_data = issuable_meta_data(@issues, collection_type)
 
     respond_to do |format|
       format.html
diff --git a/app/controllers/concerns/lfs_request.rb b/app/controllers/concerns/lfs_request.rb
index 738afd612f0..4311f9d4db9 100644
--- a/app/controllers/concerns/lfs_request.rb
+++ b/app/controllers/concerns/lfs_request.rb
@@ -74,8 +74,9 @@ module LfsRequest
 
   def lfs_upload_access?
     return false unless project.lfs_enabled?
+    return false unless has_authentication_ability?(:push_code)
 
-    has_authentication_ability?(:push_code) && can?(user, :push_code, project)
+    lfs_deploy_token? || can?(user, :push_code, project)
   end
 
   def lfs_deploy_token?
@@ -91,15 +92,7 @@ module LfsRequest
   end
 
   def storage_project
-    @storage_project ||= begin
-      result = project
-
-      # TODO: Make this go to the fork_network root immeadiatly
-      # dependant on the discussion in: https://gitlab.com/gitlab-org/gitlab-ce/issues/39769
-      result = result.fork_source while result.forked?
-
-      result
-    end
+    @storage_project ||= project.lfs_storage_project
   end
 
   def objects
diff --git a/app/controllers/concerns/merge_requests_action.rb b/app/controllers/concerns/merge_requests_action.rb
index 20190fa256b..de1710e7161 100644
--- a/app/controllers/concerns/merge_requests_action.rb
+++ b/app/controllers/concerns/merge_requests_action.rb
@@ -4,13 +4,12 @@ module MergeRequestsAction
 
   # rubocop:disable Cop/ModuleWithInstanceVariables
   def merge_requests
-    @label = merge_requests_finder.labels.first
+    @finder_type = MergeRequestsFinder
+    @label = finder.labels.first
 
-    @merge_requests = merge_requests_collection
-                      .page(params[:page])
+    @merge_requests = issuables_collection.page(params[:page])
 
-    @collection_type    = "MergeRequest"
-    @issuable_meta_data = issuable_meta_data(@merge_requests, @collection_type)
+    @issuable_meta_data = issuable_meta_data(@merge_requests, collection_type)
   end
   # rubocop:enable Cop/ModuleWithInstanceVariables
 
diff --git a/app/controllers/concerns/notes_actions.rb b/app/controllers/concerns/notes_actions.rb
index be6062c7d55..be153d9fdbd 100644
--- a/app/controllers/concerns/notes_actions.rb
+++ b/app/controllers/concerns/notes_actions.rb
@@ -5,7 +5,7 @@ module NotesActions
 
   included do
     before_action :set_polling_interval_header, only: [:index]
-    before_action :noteable, only: :index
+    before_action :require_noteable!, only: [:index, :create]
     before_action :authorize_admin_note!, only: [:update, :destroy]
     before_action :note_project, only: [:create]
   end
@@ -40,7 +40,7 @@ module NotesActions
     @note = Notes::CreateService.new(note_project, current_user, create_params).execute
 
     if @note.is_a?(Note)
-      Banzai::NoteRenderer.render([@note], @project, current_user)
+      Notes::RenderService.new(current_user).execute([@note], @project)
     end
 
     respond_to do |format|
@@ -53,7 +53,7 @@ module NotesActions
     @note = Notes::UpdateService.new(project, current_user, note_params).execute(note)
 
     if @note.is_a?(Note)
-      Banzai::NoteRenderer.render([@note], @project, current_user)
+      Notes::RenderService.new(current_user).execute([@note], @project)
     end
 
     respond_to do |format|
@@ -91,7 +91,7 @@ module NotesActions
     if note.persisted?
       attrs[:valid] = true
 
-      if noteable.nil? || noteable.discussions_rendered_on_frontend?
+      if noteable.discussions_rendered_on_frontend?
         attrs.merge!(note_serializer.represent(note))
       else
         attrs.merge!(
@@ -192,7 +192,11 @@ module NotesActions
   end
 
   def noteable
-    @noteable ||= notes_finder.target || render_404
+    @noteable ||= notes_finder.target || @note&.noteable
+  end
+
+  def require_noteable!
+    render_404 unless noteable
   end
 
   def last_fetched_at
diff --git a/app/controllers/concerns/renders_notes.rb b/app/controllers/concerns/renders_notes.rb
index 4185396e24b..754e88660bf 100644
--- a/app/controllers/concerns/renders_notes.rb
+++ b/app/controllers/concerns/renders_notes.rb
@@ -4,7 +4,7 @@ module RendersNotes
     preload_noteable_for_regular_notes(notes)
     preload_max_access_for_authors(notes, @project)
     preload_first_time_contribution_for_authors(noteable, notes)
-    Banzai::NoteRenderer.render(notes, @project, current_user)
+    Notes::RenderService.new(current_user).execute(notes, @project)
 
     notes
   end
diff --git a/app/controllers/dashboard/projects_controller.rb b/app/controllers/dashboard/projects_controller.rb
index cd94a36a6e7..d9884a47ec4 100644
--- a/app/controllers/dashboard/projects_controller.rb
+++ b/app/controllers/dashboard/projects_controller.rb
@@ -57,5 +57,7 @@ class Dashboard::ProjectsController < Dashboard::ApplicationController
     @events = EventCollection
       .new(projects, offset: params[:offset].to_i, filter: event_filter)
       .to_a
+
+    Events::RenderService.new(current_user).execute(@events, atom_request: request.format.atom?)
   end
 end
diff --git a/app/controllers/dashboard/todos_controller.rb b/app/controllers/dashboard/todos_controller.rb
index 02c5857eea7..e89eaf7edda 100644
--- a/app/controllers/dashboard/todos_controller.rb
+++ b/app/controllers/dashboard/todos_controller.rb
@@ -76,7 +76,7 @@ class Dashboard::TodosController < Dashboard::ApplicationController
   def redirect_out_of_range(todos)
     total_pages =
       if todo_params.except(:sort, :page).empty?
-        (current_user.todos_pending_count / todos.limit_value).ceil
+        (current_user.todos_pending_count.to_f / todos.limit_value).ceil
       else
         todos.total_pages
       end
diff --git a/app/controllers/dashboard_controller.rb b/app/controllers/dashboard_controller.rb
index 19a5db6fd17..280ed93faf8 100644
--- a/app/controllers/dashboard_controller.rb
+++ b/app/controllers/dashboard_controller.rb
@@ -32,6 +32,8 @@ class DashboardController < Dashboard::ApplicationController
     @events = EventCollection
       .new(projects, offset: params[:offset].to_i, filter: @event_filter)
       .to_a
+
+    Events::RenderService.new(current_user).execute(@events)
   end
 
   def set_show_full_reference
diff --git a/app/controllers/groups_controller.rb b/app/controllers/groups_controller.rb
index bc3e95f1aed..eb53a522f90 100644
--- a/app/controllers/groups_controller.rb
+++ b/app/controllers/groups_controller.rb
@@ -155,6 +155,8 @@ class GroupsController < Groups::ApplicationController
     @events = EventCollection
       .new(@projects, offset: params[:offset].to_i, filter: event_filter)
       .to_a
+
+    Events::RenderService.new(current_user).execute(@events, atom_request: request.format.atom?)
   end
 
   def user_actions
diff --git a/app/controllers/import/github_controller.rb b/app/controllers/import/github_controller.rb
index ab18d86dcae..b8ba7921613 100644
--- a/app/controllers/import/github_controller.rb
+++ b/app/controllers/import/github_controller.rb
@@ -43,7 +43,7 @@ class Import::GithubController < Import::BaseController
     @target_namespace = find_or_create_namespace(namespace_path, current_user.namespace_path)
 
     if can?(current_user, :create_projects, @target_namespace)
-      @project = Gitlab::GithubImport::ProjectCreator.new(repo, @project_name, @target_namespace, current_user, access_params, type: provider).execute
+      @project = Gitlab::LegacyGithubImport::ProjectCreator.new(repo, @project_name, @target_namespace, current_user, access_params, type: provider).execute
     else
       render 'unauthorized'
     end
@@ -52,7 +52,7 @@ class Import::GithubController < Import::BaseController
   private
 
   def client
-    @client ||= Gitlab::GithubImport::Client.new(session[access_token_key], client_options)
+    @client ||= Gitlab::LegacyGithubImport::Client.new(session[access_token_key], client_options)
   end
 
   def verify_import_enabled
diff --git a/app/controllers/metrics_controller.rb b/app/controllers/metrics_controller.rb
index 37587a52eaf..d81ad135198 100644
--- a/app/controllers/metrics_controller.rb
+++ b/app/controllers/metrics_controller.rb
@@ -3,10 +3,16 @@ class MetricsController < ActionController::Base
 
   protect_from_forgery with: :exception
 
-  before_action :validate_prometheus_metrics
-
   def index
-    render text: metrics_service.metrics_text, content_type: 'text/plain; version=0.0.4'
+    response = if Gitlab::Metrics.prometheus_metrics_enabled?
+                 metrics_service.metrics_text
+               else
+                 help_page = help_page_url('administration/monitoring/prometheus/gitlab_metrics',
+                                           anchor: 'gitlab-prometheus-metrics'
+                                          )
+                 "# Metrics are disabled, see: #{help_page}\n"
+               end
+    render text: response, content_type: 'text/plain; version=0.0.4'
   end
 
   private
@@ -14,8 +20,4 @@ class MetricsController < ActionController::Base
   def metrics_service
     @metrics_service ||= MetricsService.new
   end
-
-  def validate_prometheus_metrics
-    render_404 unless Gitlab::Metrics.prometheus_metrics_enabled?
-  end
 end
diff --git a/app/controllers/projects/clusters/applications_controller.rb b/app/controllers/projects/clusters/applications_controller.rb
new file mode 100644
index 00000000000..90c7fa62216
--- /dev/null
+++ b/app/controllers/projects/clusters/applications_controller.rb
@@ -0,0 +1,25 @@
+class Projects::Clusters::ApplicationsController < Projects::ApplicationController
+  before_action :cluster
+  before_action :application_class, only: [:create]
+  before_action :authorize_read_cluster!
+  before_action :authorize_create_cluster!, only: [:create]
+
+  def create
+    Clusters::Applications::ScheduleInstallationService.new(project, current_user,
+                                                            application_class: @application_class,
+                                                            cluster: @cluster).execute
+    head :no_content
+  rescue StandardError
+    head :bad_request
+  end
+
+  private
+
+  def cluster
+    @cluster ||= project.clusters.find(params[:id]) || render_404
+  end
+
+  def application_class
+    @application_class ||= Clusters::Cluster::APPLICATIONS[params[:application]] || render_404
+  end
+end
diff --git a/app/controllers/projects/clusters_controller.rb b/app/controllers/projects/clusters_controller.rb
index 03019b0becc..9a56c9de858 100644
--- a/app/controllers/projects/clusters_controller.rb
+++ b/app/controllers/projects/clusters_controller.rb
@@ -1,8 +1,8 @@
 class Projects::ClustersController < Projects::ApplicationController
-  before_action :cluster, except: [:login, :index, :new, :create]
+  before_action :cluster, except: [:login, :index, :new, :new_gcp, :create]
   before_action :authorize_read_cluster!
-  before_action :authorize_create_cluster!, only: [:new, :create]
-  before_action :authorize_google_api, only: [:new, :create]
+  before_action :authorize_create_cluster!, only: [:new, :new_gcp, :create]
+  before_action :authorize_google_api, only: [:new_gcp, :create]
   before_action :authorize_update_cluster!, only: [:update]
   before_action :authorize_admin_cluster!, only: [:destroy]
 
@@ -16,7 +16,7 @@ class Projects::ClustersController < Projects::ApplicationController
 
   def login
     begin
-      state = generate_session_key_redirect(namespace_project_clusters_url.to_s)
+      state = generate_session_key_redirect(providers_gcp_new_namespace_project_clusters_url.to_s)
 
       @authorize_url = GoogleApi::CloudPlatform::Client.new(
         nil, callback_google_api_auth_url,
@@ -27,18 +27,23 @@ class Projects::ClustersController < Projects::ApplicationController
   end
 
   def new
-    @cluster = project.build_cluster
+  end
+
+  def new_gcp
+    @cluster = Clusters::Cluster.new.tap do |cluster|
+      cluster.build_provider_gcp
+    end
   end
 
   def create
-    @cluster = Ci::CreateClusterService
+    @cluster = Clusters::CreateService
       .new(project, current_user, create_params)
       .execute(token_in_session)
 
     if @cluster.persisted?
       redirect_to project_cluster_path(project, @cluster)
     else
-      render :new
+      render :new_gcp
     end
   end
 
@@ -58,7 +63,7 @@ class Projects::ClustersController < Projects::ApplicationController
   end
 
   def update
-    Ci::UpdateClusterService
+    Clusters::UpdateService
       .new(project, current_user, update_params)
       .execute(cluster)
 
@@ -88,19 +93,19 @@ class Projects::ClustersController < Projects::ApplicationController
 
   def create_params
     params.require(:cluster).permit(
-      :gcp_project_id,
-      :gcp_cluster_zone,
-      :gcp_cluster_name,
-      :gcp_cluster_size,
-      :gcp_machine_type,
-      :project_namespace,
-      :enabled)
+      :enabled,
+      :name,
+      :provider_type,
+      provider_gcp_attributes: [
+        :gcp_project_id,
+        :zone,
+        :num_nodes,
+        :machine_type
+      ])
   end
 
   def update_params
-    params.require(:cluster).permit(
-      :project_namespace,
-      :enabled)
+    params.require(:cluster).permit(:enabled)
   end
 
   def authorize_google_api
diff --git a/app/controllers/projects/commit_controller.rb b/app/controllers/projects/commit_controller.rb
index a62f05db7db..494d412b532 100644
--- a/app/controllers/projects/commit_controller.rb
+++ b/app/controllers/projects/commit_controller.rb
@@ -16,6 +16,8 @@ class Projects::CommitController < Projects::ApplicationController
   before_action :define_note_vars, only: [:show, :diff_for_path]
   before_action :authorize_edit_tree!, only: [:revert, :cherry_pick]
 
+  BRANCH_SEARCH_LIMIT = 1000
+
   def show
     apply_diff_view_cookie!
 
@@ -56,8 +58,14 @@ class Projects::CommitController < Projects::ApplicationController
   end
 
   def branches
-    @branches = @project.repository.branch_names_contains(commit.id)
-    @tags = @project.repository.tag_names_contains(commit.id)
+    # branch_names_contains/tag_names_contains can take a long time when there are thousands of
+    # branches/tags - each `git branch --contains xxx` request can consume a cpu core.
+    # so only do the query when there are a manageable number of branches/tags
+    @branches_limit_exceeded = @project.repository.branch_count > BRANCH_SEARCH_LIMIT
+    @branches = @branches_limit_exceeded ? [] : @project.repository.branch_names_contains(commit.id)
+
+    @tags_limit_exceeded = @project.repository.tag_count > BRANCH_SEARCH_LIMIT
+    @tags = @tags_limit_exceeded ? [] : @project.repository.tag_names_contains(commit.id)
     render layout: false
   end
 
diff --git a/app/controllers/projects/commits_controller.rb b/app/controllers/projects/commits_controller.rb
index d48284a4429..28920877635 100644
--- a/app/controllers/projects/commits_controller.rb
+++ b/app/controllers/projects/commits_controller.rb
@@ -10,9 +10,6 @@ class Projects::CommitsController < Projects::ApplicationController
   before_action :set_commits
 
   def show
-    @note_counts = project.notes.where(commit_id: @commits.map(&:id))
-      .group(:commit_id).count
-
     @merge_request = MergeRequestsFinder.new(current_user, project_id: @project.id).execute.opened
       .find_by(source_project: @project, source_branch: @ref, target_branch: @repository.root_ref)
 
diff --git a/app/controllers/projects/issues_controller.rb b/app/controllers/projects/issues_controller.rb
index d4e763aa5b8..dbc9106ba6d 100644
--- a/app/controllers/projects/issues_controller.rb
+++ b/app/controllers/projects/issues_controller.rb
@@ -10,7 +10,7 @@ class Projects::IssuesController < Projects::ApplicationController
 
   before_action :check_issues_available!
   before_action :issue, except: [:index, :new, :create, :bulk_update]
-  before_action :set_issues_index, only: [:index]
+  before_action :set_issuables_index, only: [:index]
 
   # Allow write(create) issue
   before_action :authorize_create_issue!, only: [:new, :create]
@@ -24,15 +24,7 @@ class Projects::IssuesController < Projects::ApplicationController
   respond_to :html
 
   def index
-    if params[:assignee_id].present?
-      assignee = User.find_by_id(params[:assignee_id])
-      @users.push(assignee) if assignee
-    end
-
-    if params[:author_id].present?
-      author = User.find_by_id(params[:author_id])
-      @users.push(author) if author
-    end
+    @issues = @issuables
 
     respond_to do |format|
       format.html
@@ -252,4 +244,9 @@ class Projects::IssuesController < Projects::ApplicationController
     update_params = issue_params.merge(spammable_params)
     Issues::UpdateService.new(project, current_user, update_params)
   end
+
+  def set_issuables_index
+    @finder_type = IssuesFinder
+    super
+  end
 end
diff --git a/app/controllers/projects/jobs_controller.rb b/app/controllers/projects/jobs_controller.rb
index 1b985ea9763..1c4c09c772f 100644
--- a/app/controllers/projects/jobs_controller.rb
+++ b/app/controllers/projects/jobs_controller.rb
@@ -4,7 +4,8 @@ class Projects::JobsController < Projects::ApplicationController
   before_action :authorize_read_build!,
     only: [:index, :show, :status, :raw, :trace]
   before_action :authorize_update_build!,
-    except: [:index, :show, :status, :raw, :trace, :cancel_all]
+    except: [:index, :show, :status, :raw, :trace, :cancel_all, :erase]
+  before_action :authorize_erase_build!, only: [:erase]
 
   layout 'project'
 
@@ -131,6 +132,10 @@ class Projects::JobsController < Projects::ApplicationController
     return access_denied! unless can?(current_user, :update_build, build)
   end
 
+  def authorize_erase_build!
+    return access_denied! unless can?(current_user, :erase_build, build)
+  end
+
   def build
     @build ||= project.builds.find(params[:id])
       .present(current_user: current_user)
diff --git a/app/controllers/projects/merge_requests/application_controller.rb b/app/controllers/projects/merge_requests/application_controller.rb
index 0e71977a58a..1269759fc2b 100644
--- a/app/controllers/projects/merge_requests/application_controller.rb
+++ b/app/controllers/projects/merge_requests/application_controller.rb
@@ -2,7 +2,6 @@ class Projects::MergeRequests::ApplicationController < Projects::ApplicationCont
   before_action :check_merge_requests_available!
   before_action :merge_request
   before_action :authorize_read_merge_request!
-  before_action :ensure_ref_fetched
 
   private
 
@@ -10,12 +9,6 @@ class Projects::MergeRequests::ApplicationController < Projects::ApplicationCont
     @issuable = @merge_request ||= @project.merge_requests.find_by!(iid: params[:id])
   end
 
-  # Make sure merge requests created before 8.0
-  # have head file in refs/merge-requests/
-  def ensure_ref_fetched
-    @merge_request.ensure_ref_fetched if Gitlab::Database.read_write?
-  end
-
   def merge_request_params
     params.require(:merge_request).permit(merge_request_params_attributes)
   end
diff --git a/app/controllers/projects/merge_requests/creations_controller.rb b/app/controllers/projects/merge_requests/creations_controller.rb
index 99dc3dda9e7..764a9c7111e 100644
--- a/app/controllers/projects/merge_requests/creations_controller.rb
+++ b/app/controllers/projects/merge_requests/creations_controller.rb
@@ -4,7 +4,6 @@ class Projects::MergeRequests::CreationsController < Projects::MergeRequests::Ap
   include RendersCommits
 
   skip_before_action :merge_request
-  skip_before_action :ensure_ref_fetched
   before_action :authorize_create_merge_request!
   before_action :apply_diff_view_cookie!, only: [:diffs, :diff_for_path]
   before_action :build_merge_request, except: [:create]
@@ -111,9 +110,6 @@ class Projects::MergeRequests::CreationsController < Projects::MergeRequests::Ap
     @commits = prepare_commits_for_rendering(@merge_request.commits)
     @commit = @merge_request.diff_head_commit
 
-    @note_counts = Note.where(commit_id: @commits.map(&:id))
-      .group(:commit_id).count
-
     @labels = LabelsFinder.new(current_user, project_id: @project.id).execute
 
     set_pipeline_variables
diff --git a/app/controllers/projects/merge_requests_controller.rb b/app/controllers/projects/merge_requests_controller.rb
index 17cac69e588..22de6680511 100644
--- a/app/controllers/projects/merge_requests_controller.rb
+++ b/app/controllers/projects/merge_requests_controller.rb
@@ -7,37 +7,15 @@ class Projects::MergeRequestsController < Projects::MergeRequests::ApplicationCo
   include IssuableCollections
 
   skip_before_action :merge_request, only: [:index, :bulk_update]
-  skip_before_action :ensure_ref_fetched, only: [:index, :bulk_update]
 
   before_action :authorize_update_issuable!, only: [:close, :edit, :update, :remove_wip, :sort]
 
+  before_action :set_issuables_index, only: [:index]
+
   before_action :authenticate_user!, only: [:assign_related_issues]
 
   def index
-    @collection_type    = "MergeRequest"
-    @merge_requests     = merge_requests_collection
-    @merge_requests     = @merge_requests.page(params[:page])
-    @merge_requests     = @merge_requests.preload(merge_request_diff: :merge_request)
-    @issuable_meta_data = issuable_meta_data(@merge_requests, @collection_type)
-    @total_pages        = merge_requests_page_count(@merge_requests)
-
-    return if redirect_out_of_range(@merge_requests, @total_pages)
-
-    if params[:label_name].present?
-      labels_params = { project_id: @project.id, title: params[:label_name] }
-      @labels = LabelsFinder.new(current_user, labels_params).execute
-    end
-
-    @users = []
-    if params[:assignee_id].present?
-      assignee = User.find_by_id(params[:assignee_id])
-      @users.push(assignee) if assignee
-    end
-
-    if params[:author_id].present?
-      author = User.find_by_id(params[:author_id])
-      @users.push(author) if author
-    end
+    @merge_requests = @issuables
 
     respond_to do |format|
       format.html
@@ -52,7 +30,6 @@ class Projects::MergeRequestsController < Projects::MergeRequests::ApplicationCo
 
   def show
     validates_merge_request
-    ensure_ref_fetched
     close_merge_request_without_source_project
     check_if_can_be_merged
 
@@ -104,8 +81,6 @@ class Projects::MergeRequestsController < Projects::MergeRequests::ApplicationCo
     # Get commits from repository
     # or from cache if already merged
     @commits = prepare_commits_for_rendering(@merge_request.commits)
-    @note_counts = Note.where(commit_id: @commits.map(&:id))
-      .group(:commit_id).count
 
     render json: { html: view_to_html_string('projects/merge_requests/_commits') }
   end
@@ -340,4 +315,9 @@ class Projects::MergeRequestsController < Projects::MergeRequests::ApplicationCo
     @target_project = @merge_request.target_project
     @target_branches = @merge_request.target_project.repository.branch_names
   end
+
+  def set_issuables_index
+    @finder_type = MergeRequestsFinder
+    super
+  end
 end
diff --git a/app/controllers/projects/refs_controller.rb b/app/controllers/projects/refs_controller.rb
index 2fd015df688..2376f469213 100644
--- a/app/controllers/projects/refs_controller.rb
+++ b/app/controllers/projects/refs_controller.rb
@@ -56,9 +56,12 @@ class Projects::RefsController < Projects::ApplicationController
       contents[@offset, @limit].to_a.map do |content|
         file = @path ? File.join(@path, content.name) : content.name
         last_commit = @repo.last_commit_for_path(@commit.id, file)
+        commit_path = project_commit_path(@project, last_commit) if last_commit
         {
           file_name: content.name,
-          commit: last_commit
+          commit: last_commit,
+          type: content.type,
+          commit_path: commit_path
         }
       end
     end
@@ -70,6 +73,11 @@ class Projects::RefsController < Projects::ApplicationController
 
     respond_to do |format|
       format.html { render_404 }
+      format.json do
+        response.headers["More-Logs-Url"] = @more_log_url
+
+        render json: @logs
+      end
       format.js
     end
   end
diff --git a/app/controllers/projects_controller.rb b/app/controllers/projects_controller.rb
index db543d688a0..2a473ec0cec 100644
--- a/app/controllers/projects_controller.rb
+++ b/app/controllers/projects_controller.rb
@@ -275,7 +275,8 @@ class ProjectsController < Projects::ApplicationController
         @project_wiki = @project.wiki
         @wiki_home = @project_wiki.find_page('home', params[:version_id])
       elsif @project.feature_available?(:issues, current_user)
-        @issues = issues_collection.page(params[:page])
+        @finder_type = IssuesFinder
+        @issues = issuables_collection.page(params[:page])
         @collection_type = 'Issue'
         @issuable_meta_data = issuable_meta_data(@issues, @collection_type)
       end
@@ -300,6 +301,8 @@ class ProjectsController < Projects::ApplicationController
     @events = EventCollection
       .new(projects, offset: params[:offset].to_i, filter: event_filter)
       .to_a
+
+    Events::RenderService.new(current_user).execute(@events, atom_request: request.format.atom?)
   end
 
   def project_params
diff --git a/app/controllers/snippets/notes_controller.rb b/app/controllers/snippets/notes_controller.rb
index f9496787b15..c8b4682e6dc 100644
--- a/app/controllers/snippets/notes_controller.rb
+++ b/app/controllers/snippets/notes_controller.rb
@@ -20,6 +20,7 @@ class Snippets::NotesController < ApplicationController
   def snippet
     PersonalSnippet.find_by(id: params[:snippet_id])
   end
+  alias_method :noteable, :snippet
 
   def note_params
     super.merge(noteable_id: params[:snippet_id])
diff --git a/app/controllers/users_controller.rb b/app/controllers/users_controller.rb
index 4ee855806ab..5fca31b4956 100644
--- a/app/controllers/users_controller.rb
+++ b/app/controllers/users_controller.rb
@@ -108,6 +108,8 @@ class UsersController < ApplicationController
       .references(:project)
       .with_associations
       .limit_recent(20, params[:offset])
+
+    Events::RenderService.new(current_user).execute(@events, atom_request: request.format.atom?)
   end
 
   def load_projects
diff --git a/app/finders/autocomplete_users_finder.rb b/app/finders/autocomplete_users_finder.rb
index b8f52e31926..c3f5358b577 100644
--- a/app/finders/autocomplete_users_finder.rb
+++ b/app/finders/autocomplete_users_finder.rb
@@ -45,7 +45,7 @@ class AutocompleteUsersFinder
 
   def find_users
     return users_from_project if project
-    return group.users if group
+    return group.users_with_parents if group
     return User.all if current_user
 
     User.none
diff --git a/app/finders/groups_finder.rb b/app/finders/groups_finder.rb
index 0c4c4b10fb6..0282b378d88 100644
--- a/app/finders/groups_finder.rb
+++ b/app/finders/groups_finder.rb
@@ -15,6 +15,8 @@
 # Anonymous users will never return any `owned` groups. They will return all
 # public groups instead, even if `all_available` is set to false.
 class GroupsFinder < UnionFinder
+  include CustomAttributesFilter
+
   def initialize(current_user = nil, params = {})
     @current_user = current_user
     @params = params
@@ -22,8 +24,12 @@ class GroupsFinder < UnionFinder
 
   def execute
     items = all_groups.map do |item|
-      by_parent(item)
+      item = by_parent(item)
+      item = by_custom_attributes(item)
+
+      item
     end
+
     find_union(items, Group).with_route.order_id_desc
   end
 
diff --git a/app/finders/issuable_finder.rb b/app/finders/issuable_finder.rb
index 24c07f3dc70..b46ec5e5350 100644
--- a/app/finders/issuable_finder.rb
+++ b/app/finders/issuable_finder.rb
@@ -36,6 +36,7 @@ class IssuableFinder
     iids
     label_name
     milestone_title
+    my_reaction_emoji
     non_archived
     project_id
     scope
diff --git a/app/finders/projects_finder.rb b/app/finders/projects_finder.rb
index eac6095d8dc..005612ededc 100644
--- a/app/finders/projects_finder.rb
+++ b/app/finders/projects_finder.rb
@@ -18,6 +18,8 @@
 #     non_archived: boolean
 #
 class ProjectsFinder < UnionFinder
+  include CustomAttributesFilter
+
   attr_accessor :params
   attr_reader :current_user, :project_ids_relation
 
@@ -44,6 +46,7 @@ class ProjectsFinder < UnionFinder
     collection = by_tags(collection)
     collection = by_search(collection)
     collection = by_archived(collection)
+    collection = by_custom_attributes(collection)
 
     sort(collection)
   end
diff --git a/app/helpers/appearances_helper.rb b/app/helpers/appearances_helper.rb
index 8ad94d3f723..df590cf47c8 100644
--- a/app/helpers/appearances_helper.rb
+++ b/app/helpers/appearances_helper.rb
@@ -30,4 +30,11 @@ module AppearancesHelper
       render 'shared/logo.svg'
     end
   end
+
+  # Skip the 'GitLab' type logo when custom brand logo is set
+  def brand_header_logo_type
+    unless brand_item && brand_item.header_logo?
+      render 'shared/logo_type.svg'
+    end
+  end
 end
diff --git a/app/helpers/boards_helper.rb b/app/helpers/boards_helper.rb
index 7112c6ee470..c4a621160af 100644
--- a/app/helpers/boards_helper.rb
+++ b/app/helpers/boards_helper.rb
@@ -20,17 +20,6 @@ module BoardsHelper
     project_issues_path(@project)
   end
 
-  def current_board_json
-    board = @board || @boards.first
-
-    board.to_json(
-      only: [:id, :name, :milestone_id],
-      include: {
-        milestone: { only: [:title] }
-      }
-    )
-  end
-
   def board_base_url
     project_boards_path(@project)
   end
diff --git a/app/helpers/ci_status_helper.rb b/app/helpers/ci_status_helper.rb
index 4dd573c61f1..636316da80a 100644
--- a/app/helpers/ci_status_helper.rb
+++ b/app/helpers/ci_status_helper.rb
@@ -6,11 +6,6 @@
 # See 'detailed_status?` method and `Gitlab::Ci::Status` module.
 #
 module CiStatusHelper
-  def ci_status_path(pipeline)
-    project = pipeline.project
-    project_pipeline_path(project, pipeline)
-  end
-
   def ci_label_for_status(status)
     if detailed_status?(status)
       return status.label
diff --git a/app/helpers/commits_helper.rb b/app/helpers/commits_helper.rb
index ef22cafc2e2..f9a666fa1e6 100644
--- a/app/helpers/commits_helper.rb
+++ b/app/helpers/commits_helper.rb
@@ -60,23 +60,33 @@ module CommitsHelper
     branches.include?(project.default_branch) ? branches.delete(project.default_branch) : branches.pop
   end
 
+  # Returns a link formatted as a commit branch link
+  def commit_branch_link(url, text)
+    link_to(url, class: 'label label-gray ref-name branch-link') do
+      icon('code-fork') + " #{text}"
+    end
+  end
+
   # Returns the sorted alphabetically links to branches, separated by a comma
   def commit_branches_links(project, branches)
     branches.sort.map do |branch|
-      link_to(project_ref_path(project, branch), class: "label label-gray ref-name") do
-        icon('code-fork') + " #{branch}"
-      end
-    end.join(" ").html_safe
+      commit_branch_link(project_ref_path(project, branch), branch)
+    end.join(' ').html_safe
+  end
+
+  # Returns a link formatted as a commit tag link
+  def commit_tag_link(url, text)
+    link_to(url, class: 'label label-gray ref-name') do
+      icon('tag') + " #{text}"
+    end
   end
 
   # Returns the sorted links to tags, separated by a comma
   def commit_tags_links(project, tags)
     sorted = VersionSorter.rsort(tags)
     sorted.map do |tag|
-      link_to(project_ref_path(project, tag), class: "label label-gray ref-name") do
-        icon('tag') + " #{tag}"
-      end
-    end.join(" ").html_safe
+      commit_tag_link(project_ref_path(project, tag), tag)
+    end.join(' ').html_safe
   end
 
   def link_to_browse_code(project, commit)
diff --git a/app/helpers/events_helper.rb b/app/helpers/events_helper.rb
index fd88e0d794a..079b3cd3aa0 100644
--- a/app/helpers/events_helper.rb
+++ b/app/helpers/events_helper.rb
@@ -172,16 +172,6 @@ module EventsHelper
     end
   end
 
-  def event_note(text, options = {})
-    text = first_line_in_markdown(text, 150, options)
-
-    sanitize(
-      text,
-      tags: %w(a img gl-emoji b pre code p span),
-      attributes: Rails::Html::WhiteListSanitizer.allowed_attributes + ['style', 'data-src', 'data-name', 'data-unicode-version']
-    )
-  end
-
   def event_commit_title(message)
     message ||= ''
     (message.split("\n").first || "").truncate(70)
diff --git a/app/helpers/icons_helper.rb b/app/helpers/icons_helper.rb
index ec779c1c447..c6a83f21ceb 100644
--- a/app/helpers/icons_helper.rb
+++ b/app/helpers/icons_helper.rb
@@ -23,10 +23,17 @@ module IconsHelper
     render "shared/icons/#{icon_name}.svg", size: size
   end
 
+  def sprite_icon_path
+    # SVG Sprites currently don't work across domains, so in the case of a CDN
+    # we have to set the current path deliberately to prevent addition of asset_host
+    sprite_base_url = Gitlab.config.gitlab.url if ActionController::Base.asset_host
+    ActionController::Base.helpers.image_path('icons.svg', host: sprite_base_url)
+  end
+
   def sprite_icon(icon_name, size: nil, css_class: nil)
     css_classes = size ? "s#{size}" : ""
     css_classes << " #{css_class}" unless css_class.blank?
-    content_tag(:svg, content_tag(:use, "", { "xlink:href" => "#{image_path('icons.svg')}##{icon_name}" } ), class: css_classes.empty? ? nil : css_classes)
+    content_tag(:svg, content_tag(:use, "", { "xlink:href" => "#{sprite_icon_path}##{icon_name}" } ), class: css_classes.empty? ? nil : css_classes)
   end
 
   def audit_icon(names, options = {})
diff --git a/app/helpers/issuables_helper.rb b/app/helpers/issuables_helper.rb
index 85407e38532..a9840d19178 100644
--- a/app/helpers/issuables_helper.rb
+++ b/app/helpers/issuables_helper.rb
@@ -249,8 +249,6 @@ module IssuablesHelper
   end
 
   def issuables_count_for_state(issuable_type, state)
-    finder = public_send("#{issuable_type}_finder") # rubocop:disable GitlabSecurity/PublicSend
-
     Gitlab::IssuablesCountForState.new(finder)[state]
   end
 
diff --git a/app/helpers/markup_helper.rb b/app/helpers/markup_helper.rb
index 420622399f3..2c85d7d7720 100644
--- a/app/helpers/markup_helper.rb
+++ b/app/helpers/markup_helper.rb
@@ -69,10 +69,16 @@ module MarkupHelper
   # as Markdown.  HTML tags in the parsed output are not counted toward the
   # +max_chars+ limit.  If the length limit falls within a tag's contents, then
   # the tag contents are truncated without removing the closing tag.
-  def first_line_in_markdown(text, max_chars = nil, options = {})
-    md = markdown(text, options).strip
+  def first_line_in_markdown(object, attribute, max_chars = nil, options = {})
+    md = markdown_field(object, attribute, options)
 
-    truncate_visible(md, max_chars || md.length) if md.present?
+    text = truncate_visible(md, max_chars || md.length) if md.present?
+
+    sanitize(
+      text,
+      tags: %w(a img gl-emoji b pre code p span),
+      attributes: Rails::Html::WhiteListSanitizer.allowed_attributes + ['style', 'data-src', 'data-name', 'data-unicode-version']
+    )
   end
 
   def markdown(text, context = {})
@@ -83,15 +89,17 @@ module MarkupHelper
     prepare_for_rendering(html, context)
   end
 
-  def markdown_field(object, field)
+  def markdown_field(object, field, context = {})
     object = object.for_display if object.respond_to?(:for_display)
     redacted_field_html = object.try(:"redacted_#{field}_html")
 
     return '' unless object.present?
     return redacted_field_html if redacted_field_html
 
-    html = Banzai.render_field(object, field)
-    prepare_for_rendering(html, object.banzai_render_context(field))
+    html = Banzai.render_field(object, field, context)
+    context.reverse_merge!(object.banzai_render_context(field)) if object.respond_to?(:banzai_render_context)
+
+    prepare_for_rendering(html, context)
   end
 
   def markup(file_name, text, context = {})
diff --git a/app/helpers/namespaces_helper.rb b/app/helpers/namespaces_helper.rb
index d7df9bb06d2..b78d3072186 100644
--- a/app/helpers/namespaces_helper.rb
+++ b/app/helpers/namespaces_helper.rb
@@ -4,8 +4,11 @@ module NamespacesHelper
   end
 
   def namespaces_options(selected = :current_user, display_path: false, extra_group: nil)
-    groups  = current_user.owned_groups + current_user.masters_groups
-    users   = [current_user.namespace]
+    groups = current_user.manageable_groups
+               .joins(:route)
+               .includes(:route)
+               .order('routes.path')
+    users = [current_user.namespace]
 
     unless extra_group.nil? || extra_group.is_a?(Group)
       extra_group = Group.find(extra_group) if Namespace.find(extra_group).kind == 'group'
diff --git a/app/helpers/tree_helper.rb b/app/helpers/tree_helper.rb
index c4ea0f5ac53..0e106e2c85d 100644
--- a/app/helpers/tree_helper.rb
+++ b/app/helpers/tree_helper.rb
@@ -1,14 +1,23 @@
 module TreeHelper
+  FILE_LIMIT = 1_000
+
   # Sorts a repository's tree so that folders are before files and renders
   # their corresponding partials
   #
-  # contents - A Grit::Tree object for the current tree
+  # tree - A `Tree` object for the current tree
   def render_tree(tree)
     # Sort submodules and folders together by name ahead of files
     folders, files, submodules = tree.trees, tree.blobs, tree.submodules
-    tree = ""
+    tree = ''
     items = (folders + submodules).sort_by(&:name) + files
-    tree << render(partial: "projects/tree/tree_row", collection: items) if items.present?
+
+    if items.size > FILE_LIMIT
+      tree << render(partial: 'projects/tree/truncated_notice_tree_row',
+                     locals: { limit: FILE_LIMIT, total: items.size })
+      items = items.take(FILE_LIMIT)
+    end
+
+    tree << render(partial: 'projects/tree/tree_row', collection: items) if items.present?
     tree.html_safe
   end
 
diff --git a/app/models/ci/build.rb b/app/models/ci/build.rb
index 6ca46ae89c1..1b2b0d17910 100644
--- a/app/models/ci/build.rb
+++ b/app/models/ci/build.rb
@@ -192,6 +192,10 @@ module Ci
       project.build_timeout
     end
 
+    def triggered_by?(current_user)
+      user == current_user
+    end
+
     # A slugified version of the build ref, suitable for inclusion in URLs and
     # domain names. Rules:
     #
diff --git a/app/models/ci/pipeline.rb b/app/models/ci/pipeline.rb
index ca65e81f27a..19814864e50 100644
--- a/app/models/ci/pipeline.rb
+++ b/app/models/ci/pipeline.rb
@@ -66,8 +66,8 @@ module Ci
 
     state_machine :status, initial: :created do
       event :enqueue do
-        transition created: :pending
-        transition [:success, :failed, :canceled, :skipped] => :running
+        transition [:created, :skipped] => :pending
+        transition [:success, :failed, :canceled] => :running
       end
 
       event :run do
@@ -409,7 +409,7 @@ module Ci
     end
 
     def notes
-      Note.for_commit_id(sha)
+      project.notes.for_commit_id(sha)
     end
 
     def process!
diff --git a/app/models/clusters/applications/helm.rb b/app/models/clusters/applications/helm.rb
new file mode 100644
index 00000000000..c7949d11ef8
--- /dev/null
+++ b/app/models/clusters/applications/helm.rb
@@ -0,0 +1,35 @@
+module Clusters
+  module Applications
+    class Helm < ActiveRecord::Base
+      self.table_name = 'clusters_applications_helm'
+
+      include ::Clusters::Concerns::ApplicationStatus
+
+      belongs_to :cluster, class_name: 'Clusters::Cluster', foreign_key: :cluster_id
+
+      default_value_for :version, Gitlab::Kubernetes::Helm::HELM_VERSION
+
+      validates :cluster, presence: true
+
+      after_initialize :set_initial_status
+
+      def self.application_name
+        self.to_s.demodulize.underscore
+      end
+
+      def set_initial_status
+        return unless not_installable?
+
+        self.status = 'installable' if cluster&.platform_kubernetes_active?
+      end
+
+      def name
+        self.class.application_name
+      end
+
+      def install_command
+        Gitlab::Kubernetes::Helm::InstallCommand.new(name, true)
+      end
+    end
+  end
+end
diff --git a/app/models/clusters/applications/ingress.rb b/app/models/clusters/applications/ingress.rb
new file mode 100644
index 00000000000..44bd979741e
--- /dev/null
+++ b/app/models/clusters/applications/ingress.rb
@@ -0,0 +1,44 @@
+module Clusters
+  module Applications
+    class Ingress < ActiveRecord::Base
+      self.table_name = 'clusters_applications_ingress'
+
+      include ::Clusters::Concerns::ApplicationStatus
+
+      belongs_to :cluster, class_name: 'Clusters::Cluster', foreign_key: :cluster_id
+
+      validates :cluster, presence: true
+
+      default_value_for :ingress_type, :nginx
+      default_value_for :version, :nginx
+
+      after_initialize :set_initial_status
+
+      enum ingress_type: {
+        nginx: 1
+      }
+
+      def self.application_name
+        self.to_s.demodulize.underscore
+      end
+
+      def set_initial_status
+        return unless not_installable?
+
+        self.status = 'installable' if cluster&.application_helm_installed?
+      end
+
+      def name
+        self.class.application_name
+      end
+
+      def chart
+        'stable/nginx-ingress'
+      end
+
+      def install_command
+        Gitlab::Kubernetes::Helm::InstallCommand.new(name, false, chart)
+      end
+    end
+  end
+end
diff --git a/app/models/clusters/cluster.rb b/app/models/clusters/cluster.rb
new file mode 100644
index 00000000000..185d9473aab
--- /dev/null
+++ b/app/models/clusters/cluster.rb
@@ -0,0 +1,102 @@
+module Clusters
+  class Cluster < ActiveRecord::Base
+    include Presentable
+
+    self.table_name = 'clusters'
+
+    APPLICATIONS = {
+      Applications::Helm.application_name => Applications::Helm,
+      Applications::Ingress.application_name => Applications::Ingress
+    }.freeze
+
+    belongs_to :user
+
+    has_many :cluster_projects, class_name: 'Clusters::Project'
+    has_many :projects, through: :cluster_projects, class_name: '::Project'
+
+    # we force autosave to happen when we save `Cluster` model
+    has_one :provider_gcp, class_name: 'Clusters::Providers::Gcp', autosave: true
+
+    # We have to ":destroy" it today to ensure that we clean also the Kubernetes Integration
+    has_one :platform_kubernetes, class_name: 'Clusters::Platforms::Kubernetes', autosave: true, dependent: :destroy # rubocop:disable Cop/ActiveRecordDependent
+
+    has_one :application_helm, class_name: 'Clusters::Applications::Helm'
+    has_one :application_ingress, class_name: 'Clusters::Applications::Ingress'
+
+    accepts_nested_attributes_for :provider_gcp, update_only: true
+    accepts_nested_attributes_for :platform_kubernetes, update_only: true
+
+    validates :name, cluster_name: true
+    validate :restrict_modification, on: :update
+
+    # TODO: Move back this into Clusters::Platforms::Kubernetes in 10.3
+    # We need callback here because `enabled` belongs to Clusters::Cluster
+    # Callbacks in Clusters::Platforms::Kubernetes will not be called after update
+    after_save :update_kubernetes_integration!
+
+    delegate :status, to: :provider, allow_nil: true
+    delegate :status_reason, to: :provider, allow_nil: true
+    delegate :on_creation?, to: :provider, allow_nil: true
+    delegate :update_kubernetes_integration!, to: :platform, allow_nil: true
+
+    delegate :active?, to: :platform_kubernetes, prefix: true, allow_nil: true
+    delegate :installed?, to: :application_helm, prefix: true, allow_nil: true
+
+    enum platform_type: {
+      kubernetes: 1
+    }
+
+    enum provider_type: {
+      user: 0,
+      gcp: 1
+    }
+
+    scope :enabled, -> { where(enabled: true) }
+    scope :disabled, -> { where(enabled: false) }
+
+    def status_name
+      if provider
+        provider.status_name
+      else
+        :created
+      end
+    end
+
+    def applications
+      [
+        application_helm || build_application_helm,
+        application_ingress || build_application_ingress
+      ]
+    end
+
+    def provider
+      return provider_gcp if gcp?
+    end
+
+    def platform
+      return platform_kubernetes if kubernetes?
+    end
+
+    def first_project
+      return @first_project if defined?(@first_project)
+
+      @first_project = projects.first
+    end
+    alias_method :project, :first_project
+
+    def kubeclient
+      platform_kubernetes.kubeclient if kubernetes?
+    end
+
+    private
+
+    def restrict_modification
+      if provider&.on_creation?
+        errors.add(:base, "cannot modify during creation")
+        return false
+      end
+
+      true
+    end
+  end
+end
diff --git a/app/models/clusters/concerns/application_status.rb b/app/models/clusters/concerns/application_status.rb
new file mode 100644
index 00000000000..7b7c8eac773
--- /dev/null
+++ b/app/models/clusters/concerns/application_status.rb
@@ -0,0 +1,43 @@
+module Clusters
+  module Concerns
+    module ApplicationStatus
+      extend ActiveSupport::Concern
+
+      included do
+        state_machine :status, initial: :not_installable do
+          state :not_installable, value: -2
+          state :errored, value: -1
+          state :installable, value: 0
+          state :scheduled, value: 1
+          state :installing, value: 2
+          state :installed, value: 3
+
+          event :make_scheduled do
+            transition [:installable, :errored] => :scheduled
+          end
+
+          event :make_installing do
+            transition [:scheduled] => :installing
+          end
+
+          event :make_installed do
+            transition [:installing] => :installed
+          end
+
+          event :make_errored do
+            transition any => :errored
+          end
+
+          before_transition any => [:scheduled] do |app_status, _|
+            app_status.status_reason = nil
+          end
+
+          before_transition any => [:errored] do |app_status, transition|
+            status_reason = transition.args.first
+            app_status.status_reason = status_reason if status_reason
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/app/models/clusters/platforms/kubernetes.rb b/app/models/clusters/platforms/kubernetes.rb
new file mode 100644
index 00000000000..6dc1ee810d3
--- /dev/null
+++ b/app/models/clusters/platforms/kubernetes.rb
@@ -0,0 +1,109 @@
+module Clusters
+  module Platforms
+    class Kubernetes < ActiveRecord::Base
+      self.table_name = 'cluster_platforms_kubernetes'
+
+      belongs_to :cluster, inverse_of: :platform_kubernetes, class_name: 'Clusters::Cluster'
+
+      attr_encrypted :password,
+        mode: :per_attribute_iv,
+        key: Gitlab::Application.secrets.db_key_base,
+        algorithm: 'aes-256-cbc'
+
+      attr_encrypted :token,
+        mode: :per_attribute_iv,
+        key: Gitlab::Application.secrets.db_key_base,
+        algorithm: 'aes-256-cbc'
+
+      before_validation :enforce_namespace_to_lower_case
+
+      validates :namespace,
+        allow_blank: true,
+        length: 1..63,
+        format: {
+          with: Gitlab::Regex.kubernetes_namespace_regex,
+          message: Gitlab::Regex.kubernetes_namespace_regex_message
+        }
+
+      # We expect to be `active?` only when enabled and cluster is created (the api_url is assigned)
+      validates :api_url, url: true, presence: true
+      validates :token, presence: true
+
+      # TODO: Glue code till we migrate Kubernetes Integration into Platforms::Kubernetes
+      after_destroy :destroy_kubernetes_integration!
+
+      alias_attribute :ca_pem, :ca_cert
+
+      delegate :project, to: :cluster, allow_nil: true
+      delegate :enabled?, to: :cluster, allow_nil: true
+
+      class << self
+        def namespace_for_project(project)
+          "#{project.path}-#{project.id}"
+        end
+      end
+
+      def actual_namespace
+        if namespace.present?
+          namespace
+        else
+          default_namespace
+        end
+      end
+
+      def default_namespace
+        self.class.namespace_for_project(project) if project
+      end
+
+      def kubeclient
+        @kubeclient ||= kubernetes_service.kubeclient if manages_kubernetes_service?
+      end
+
+      def update_kubernetes_integration!
+        raise 'Kubernetes service already configured' unless manages_kubernetes_service?
+
+        # This is neccesary, otheriwse enabled? returns true even though cluster updated with enabled: false
+        cluster.reload
+
+        ensure_kubernetes_service&.update!(
+          active: enabled?,
+          api_url: api_url,
+          namespace: namespace,
+          token: token,
+          ca_pem: ca_cert
+        )
+      end
+
+      def active?
+        manages_kubernetes_service?
+      end
+
+      private
+
+      def enforce_namespace_to_lower_case
+        self.namespace = self.namespace&.downcase
+      end
+
+      # TODO: glue code till we migrate Kubernetes Service into Platforms::Kubernetes class
+      def manages_kubernetes_service?
+        return true unless kubernetes_service&.active?
+
+        kubernetes_service.api_url == api_url
+      end
+
+      def destroy_kubernetes_integration!
+        return unless manages_kubernetes_service?
+
+        kubernetes_service&.destroy!
+      end
+
+      def kubernetes_service
+        @kubernetes_service ||= project&.kubernetes_service
+      end
+
+      def ensure_kubernetes_service
+        @kubernetes_service ||= kubernetes_service || project&.build_kubernetes_service
+      end
+    end
+  end
+end
diff --git a/app/models/clusters/project.rb b/app/models/clusters/project.rb
new file mode 100644
index 00000000000..eeb734b20b8
--- /dev/null
+++ b/app/models/clusters/project.rb
@@ -0,0 +1,8 @@
+module Clusters
+  class Project < ActiveRecord::Base
+    self.table_name = 'cluster_projects'
+
+    belongs_to :cluster, class_name: 'Clusters::Cluster'
+    belongs_to :project, class_name: '::Project'
+  end
+end
diff --git a/app/models/clusters/providers/gcp.rb b/app/models/clusters/providers/gcp.rb
new file mode 100644
index 00000000000..ee2e43ee9dd
--- /dev/null
+++ b/app/models/clusters/providers/gcp.rb
@@ -0,0 +1,79 @@
+module Clusters
+  module Providers
+    class Gcp < ActiveRecord::Base
+      self.table_name = 'cluster_providers_gcp'
+
+      belongs_to :cluster, inverse_of: :provider_gcp, class_name: 'Clusters::Cluster'
+
+      default_value_for :zone, 'us-central1-a'
+      default_value_for :num_nodes, 3
+      default_value_for :machine_type, 'n1-standard-2'
+
+      attr_encrypted :access_token,
+        mode: :per_attribute_iv,
+        key: Gitlab::Application.secrets.db_key_base,
+        algorithm: 'aes-256-cbc'
+
+      validates :gcp_project_id,
+        length: 1..63,
+        format: {
+          with: Gitlab::Regex.kubernetes_namespace_regex,
+          message: Gitlab::Regex.kubernetes_namespace_regex_message
+        }
+
+      validates :zone, presence: true
+
+      validates :num_nodes,
+        presence: true,
+        numericality: {
+          only_integer: true,
+          greater_than: 0
+        }
+
+      state_machine :status, initial: :scheduled do
+        state :scheduled, value: 1
+        state :creating, value: 2
+        state :created, value: 3
+        state :errored, value: 4
+
+        event :make_creating do
+          transition any - [:creating] => :creating
+        end
+
+        event :make_created do
+          transition any - [:created] => :created
+        end
+
+        event :make_errored do
+          transition any - [:errored] => :errored
+        end
+
+        before_transition any => [:errored, :created] do |provider|
+          provider.access_token = nil
+          provider.operation_id = nil
+        end
+
+        before_transition any => [:creating] do |provider, transition|
+          operation_id = transition.args.first
+          raise ArgumentError.new('operation_id is required') unless operation_id.present?
+          provider.operation_id = operation_id
+        end
+
+        before_transition any => [:errored] do |provider, transition|
+          status_reason = transition.args.first
+          provider.status_reason = status_reason if status_reason
+        end
+      end
+
+      def on_creation?
+        scheduled? || creating?
+      end
+
+      def api_client
+        return unless access_token
+
+        @api_client ||= GoogleApi::CloudPlatform::Client.new(access_token, nil)
+      end
+    end
+  end
+end
diff --git a/app/models/commit_status.rb b/app/models/commit_status.rb
index f3888528940..6b07dbdf3ea 100644
--- a/app/models/commit_status.rb
+++ b/app/models/commit_status.rb
@@ -14,7 +14,6 @@ class CommitStatus < ActiveRecord::Base
   delegate :sha, :short_sha, to: :pipeline
 
   validates :pipeline, presence: true, unless: :importing?
-
   validates :name, presence: true, unless: :importing?
 
   alias_attribute :author, :user
@@ -46,6 +45,17 @@ class CommitStatus < ActiveRecord::Base
     runner_system_failure: 4
   }
 
+  ##
+  # We still create some CommitStatuses outside of CreatePipelineService.
+  #
+  # These are pages deployments and external statuses.
+  #
+  before_create unless: :importing? do
+    Ci::EnsureStageService.new(project, user).execute(self) do |stage|
+      self.run_after_commit { StageUpdateWorker.perform_async(stage.id) }
+    end
+  end
+
   state_machine :status do
     event :process do
       transition [:skipped, :manual] => :created
diff --git a/app/models/concerns/avatarable.rb b/app/models/concerns/avatarable.rb
index 2ec70203710..10659030910 100644
--- a/app/models/concerns/avatarable.rb
+++ b/app/models/concerns/avatarable.rb
@@ -4,15 +4,26 @@ module Avatarable
   def avatar_path(only_path: true)
     return unless self[:avatar].present?
 
-    # If only_path is true then use the relative path of avatar.
-    # Otherwise use full path (including host).
     asset_host = ActionController::Base.asset_host
-    gitlab_host = only_path ? gitlab_config.relative_url_root : gitlab_config.url
+    use_asset_host = asset_host.present?
 
-    # If asset_host is set then it is expected that assets are handled by a standalone host.
-    # That means we do not want to get GitLab's relative_url_root option anymore.
-    host = (asset_host.present? && (!respond_to?(:public?) || public?)) ? asset_host : gitlab_host
+    # Avatars for private and internal groups and projects require authentication to be viewed,
+    # which means they can only be served by Rails, on the regular GitLab host.
+    # If an asset host is configured, we need to return the fully qualified URL
+    # instead of only the avatar path, so that Rails doesn't prefix it with the asset host.
+    if use_asset_host && respond_to?(:public?) && !public?
+      use_asset_host = false
+      only_path = false
+    end
 
-    [host, avatar.url].join
+    url_base = ""
+    if use_asset_host
+      url_base << asset_host unless only_path
+    else
+      url_base << gitlab_config.base_url unless only_path
+      url_base << gitlab_config.relative_url_root
+    end
+
+    url_base + avatar.url
   end
 end
diff --git a/app/models/concerns/ignorable_column.rb b/app/models/concerns/ignorable_column.rb
index eb9f3423e48..03793e8bcbb 100644
--- a/app/models/concerns/ignorable_column.rb
+++ b/app/models/concerns/ignorable_column.rb
@@ -21,8 +21,8 @@ module IgnorableColumn
       @ignored_columns ||= Set.new
     end
 
-    def ignore_column(name)
-      ignored_columns << name.to_s
+    def ignore_column(*names)
+      ignored_columns.merge(names.map(&:to_s))
     end
   end
 end
diff --git a/app/models/concerns/issuable.rb b/app/models/concerns/issuable.rb
index a928b9d6367..35090181bd9 100644
--- a/app/models/concerns/issuable.rb
+++ b/app/models/concerns/issuable.rb
@@ -17,6 +17,8 @@ module Issuable
   include Importable
   include Editable
   include AfterCommitQueue
+  include Sortable
+  include CreatedAtFilterable
 
   # This object is used to gather issuable meta data for displaying
   # upvotes, downvotes, notes and closing merge requests count for issues and merge requests
@@ -253,7 +255,7 @@ module Issuable
     participants(user).include?(user)
   end
 
-  def to_hook_data(user, old_labels: [], old_assignees: [])
+  def to_hook_data(user, old_labels: [], old_assignees: [], old_total_time_spent: nil)
     changes = previous_changes
 
     if old_labels != labels
@@ -268,6 +270,10 @@ module Issuable
       end
     end
 
+    if old_total_time_spent != total_time_spent
+      changes[:total_time_spent] = [old_total_time_spent, total_time_spent]
+    end
+
     Gitlab::HookData::IssuableBuilder.new(self).build(user: user, changes: changes)
   end
 
diff --git a/app/models/concerns/milestoneish.rb b/app/models/concerns/milestoneish.rb
index 0f506e6aa25..c22fb01a4ba 100644
--- a/app/models/concerns/milestoneish.rb
+++ b/app/models/concerns/milestoneish.rb
@@ -86,6 +86,14 @@ module Milestoneish
     false
   end
 
+  def total_issue_time_spent
+    @total_issue_time_spent ||= issues.joins(:timelogs).sum(:time_spent)
+  end
+
+  def human_total_issue_time_spent
+    Gitlab::TimeTrackingFormatter.output(total_issue_time_spent)
+  end
+
   private
 
   def count_issues_by_state(user)
diff --git a/app/models/diff_note.rb b/app/models/diff_note.rb
index d88a92dc027..ae5f138a920 100644
--- a/app/models/diff_note.rb
+++ b/app/models/diff_note.rb
@@ -18,7 +18,8 @@ class DiffNote < Note
   validate :positions_complete
   validate :verify_supported
 
-  before_validation :set_original_position, :update_position, on: :create
+  before_validation :set_original_position, on: :create
+  before_validation :update_position, on: :create, if: :on_text?
   before_validation :set_line_code
   after_save :keep_around_commits
 
diff --git a/app/models/external_issue.rb b/app/models/external_issue.rb
index 0bf18e529f0..9ff56f229bc 100644
--- a/app/models/external_issue.rb
+++ b/app/models/external_issue.rb
@@ -47,4 +47,8 @@ class ExternalIssue
 
     id
   end
+
+  def notes
+    Note.none
+  end
 end
diff --git a/app/models/gcp/cluster.rb b/app/models/gcp/cluster.rb
deleted file mode 100644
index 162a690c0e3..00000000000
--- a/app/models/gcp/cluster.rb
+++ /dev/null
@@ -1,116 +0,0 @@
-module Gcp
-  class Cluster < ActiveRecord::Base
-    extend Gitlab::Gcp::Model
-    include Presentable
-
-    belongs_to :project, inverse_of: :cluster
-    belongs_to :user
-    belongs_to :service
-
-    scope :enabled, -> { where(enabled: true) }
-    scope :disabled, -> { where(enabled: false) }
-
-    default_value_for :gcp_cluster_zone, 'us-central1-a'
-    default_value_for :gcp_cluster_size, 3
-    default_value_for :gcp_machine_type, 'n1-standard-4'
-
-    attr_encrypted :password,
-      mode: :per_attribute_iv,
-      key: Gitlab::Application.secrets.db_key_base,
-      algorithm: 'aes-256-cbc'
-
-    attr_encrypted :kubernetes_token,
-      mode: :per_attribute_iv,
-      key: Gitlab::Application.secrets.db_key_base,
-      algorithm: 'aes-256-cbc'
-
-    attr_encrypted :gcp_token,
-      mode: :per_attribute_iv,
-      key: Gitlab::Application.secrets.db_key_base,
-      algorithm: 'aes-256-cbc'
-
-    validates :gcp_project_id,
-      length: 1..63,
-      format: {
-        with: Gitlab::Regex.kubernetes_namespace_regex,
-        message: Gitlab::Regex.kubernetes_namespace_regex_message
-      }
-
-    validates :gcp_cluster_name,
-      length: 1..63,
-      format: {
-        with: Gitlab::Regex.kubernetes_namespace_regex,
-        message: Gitlab::Regex.kubernetes_namespace_regex_message
-      }
-
-    validates :gcp_cluster_zone, presence: true
-
-    validates :gcp_cluster_size,
-      presence: true,
-      numericality: {
-        only_integer: true,
-        greater_than: 0
-      }
-
-    validates :project_namespace,
-      allow_blank: true,
-      length: 1..63,
-      format: {
-        with: Gitlab::Regex.kubernetes_namespace_regex,
-        message: Gitlab::Regex.kubernetes_namespace_regex_message
-      }
-
-    # if we do not do status transition we prevent change
-    validate :restrict_modification, on: :update, unless: :status_changed?
-
-    state_machine :status, initial: :scheduled do
-      state :scheduled, value: 1
-      state :creating, value: 2
-      state :created, value: 3
-      state :errored, value: 4
-
-      event :make_creating do
-        transition any - [:creating] => :creating
-      end
-
-      event :make_created do
-        transition any - [:created] => :created
-      end
-
-      event :make_errored do
-        transition any - [:errored] => :errored
-      end
-
-      before_transition any => [:errored, :created] do |cluster|
-        cluster.gcp_token = nil
-        cluster.gcp_operation_id = nil
-      end
-
-      before_transition any => [:errored] do |cluster, transition|
-        status_reason = transition.args.first
-        cluster.status_reason = status_reason if status_reason
-      end
-    end
-
-    def project_namespace_placeholder
-      "#{project.path}-#{project.id}"
-    end
-
-    def on_creation?
-      scheduled? || creating?
-    end
-
-    def api_url
-      'https://' + endpoint if endpoint
-    end
-
-    def restrict_modification
-      if on_creation?
-        errors.add(:base, "cannot modify during creation")
-        return false
-      end
-
-      true
-    end
-  end
-end
diff --git a/app/models/group.rb b/app/models/group.rb
index c660de7fcb6..8cf632fb566 100644
--- a/app/models/group.rb
+++ b/app/models/group.rb
@@ -26,6 +26,7 @@ class Group < Namespace
   has_many :notification_settings, dependent: :destroy, as: :source # rubocop:disable Cop/ActiveRecordDependent
   has_many :labels, class_name: 'GroupLabel'
   has_many :variables, class_name: 'Ci::GroupVariable'
+  has_many :custom_attributes, class_name: 'GroupCustomAttribute'
 
   validate :avatar_type, if: ->(user) { user.avatar.present? && user.avatar_changed? }
   validate :visibility_level_allowed_by_projects
diff --git a/app/models/group_custom_attribute.rb b/app/models/group_custom_attribute.rb
new file mode 100644
index 00000000000..8157d602d67
--- /dev/null
+++ b/app/models/group_custom_attribute.rb
@@ -0,0 +1,6 @@
+class GroupCustomAttribute < ActiveRecord::Base
+  belongs_to :group
+
+  validates :group, :key, :value, presence: true
+  validates :key, uniqueness: { scope: [:group_id] }
+end
diff --git a/app/models/issue.rb b/app/models/issue.rb
index fc590f9257e..b5abc8f57b0 100644
--- a/app/models/issue.rb
+++ b/app/models/issue.rb
@@ -5,11 +5,9 @@ class Issue < ActiveRecord::Base
   include Issuable
   include Noteable
   include Referable
-  include Sortable
   include Spammable
   include FasterCacheKeys
   include RelativePositioning
-  include CreatedAtFilterable
   include TimeTrackable
 
   DueDateStruct = Struct.new(:title, :name).freeze
@@ -264,10 +262,6 @@ class Issue < ActiveRecord::Base
     true
   end
 
-  def update_project_counter_caches?
-    state_changed? || confidential_changed?
-  end
-
   def update_project_counter_caches
     Projects::OpenIssuesCountService.new(project).refresh_cache
   end
diff --git a/app/models/key.rb b/app/models/key.rb
index f119b15c737..815fd1de909 100644
--- a/app/models/key.rb
+++ b/app/models/key.rb
@@ -27,8 +27,10 @@ class Key < ActiveRecord::Base
 
   after_commit :add_to_shell, on: :create
   after_create :post_create_hook
+  after_create :refresh_user_cache
   after_commit :remove_from_shell, on: :destroy
   after_destroy :post_destroy_hook
+  after_destroy :refresh_user_cache
 
   def key=(value)
     value&.delete!("\n\r")
@@ -76,6 +78,12 @@ class Key < ActiveRecord::Base
     )
   end
 
+  def refresh_user_cache
+    return unless user
+
+    Users::KeysCountService.new(user).refresh_cache
+  end
+
   def post_destroy_hook
     SystemHooksService.new.execute_hooks_for(self, :destroy)
   end
diff --git a/app/models/lfs_object.rb b/app/models/lfs_object.rb
index b7cf96abe83..fc586fa216e 100644
--- a/app/models/lfs_object.rb
+++ b/app/models/lfs_object.rb
@@ -6,16 +6,8 @@ class LfsObject < ActiveRecord::Base
 
   mount_uploader :file, LfsObjectUploader
 
-  def storage_project(project)
-    if project && project.forked?
-      storage_project(project.forked_from_project)
-    else
-      project
-    end
-  end
-
   def project_allowed_access?(project)
-    projects.exists?(storage_project(project).id)
+    projects.exists?(project.lfs_storage_project.id)
   end
 
   def self.destroy_unreferenced
diff --git a/app/models/merge_request.rb b/app/models/merge_request.rb
index 3133dc9e7eb..f1a5cc73e83 100644
--- a/app/models/merge_request.rb
+++ b/app/models/merge_request.rb
@@ -3,12 +3,11 @@ class MergeRequest < ActiveRecord::Base
   include Issuable
   include Noteable
   include Referable
-  include Sortable
   include IgnorableColumn
-  include CreatedAtFilterable
   include TimeTrackable
 
-  ignore_column :locked_at
+  ignore_column :locked_at,
+                :ref_fetched
 
   belongs_to :target_project, class_name: "Project"
   belongs_to :source_project, class_name: "Project"
@@ -426,7 +425,7 @@ class MergeRequest < ActiveRecord::Base
   end
 
   def create_merge_request_diff
-    fetch_ref
+    fetch_ref!
 
     # n+1: https://gitlab.com/gitlab-org/gitlab-ce/issues/37435
     Gitlab::GitalyClient.allow_n_plus_1_calls do
@@ -577,7 +576,7 @@ class MergeRequest < ActiveRecord::Base
     commit_notes = Note
       .except(:order)
       .where(project_id: [source_project_id, target_project_id])
-      .where(noteable_type: 'Commit', commit_id: commit_ids)
+      .for_commit_id(commit_ids)
 
     # We're using a UNION ALL here since this results in better performance
     # compared to using OR statements. We're using UNION ALL since the queries
@@ -811,29 +810,14 @@ class MergeRequest < ActiveRecord::Base
     end
   end
 
-  def fetch_ref
-    write_ref
-    update_column(:ref_fetched, true)
+  def fetch_ref!
+    target_project.repository.fetch_source_branch!(source_project.repository, source_branch, ref_path)
   end
 
   def ref_path
     "refs/#{Repository::REF_MERGE_REQUEST}/#{iid}/head"
   end
 
-  def ref_fetched?
-    super ||
-      begin
-        computed_value = project.repository.ref_exists?(ref_path)
-        update_column(:ref_fetched, true) if computed_value
-
-        computed_value
-      end
-  end
-
-  def ensure_ref_fetched
-    fetch_ref unless ref_fetched?
-  end
-
   def in_locked_state
     begin
       lock_mr
@@ -881,7 +865,19 @@ class MergeRequest < ActiveRecord::Base
   #
   def all_commit_shas
     if persisted?
-      column_shas = MergeRequestDiffCommit.where(merge_request_diff: merge_request_diffs).limit(10_000).pluck('sha')
+      # MySQL doesn't support LIMIT in a subquery.
+      diffs_relation =
+        if Gitlab::Database.postgresql?
+          merge_request_diffs.order(id: :desc).limit(100)
+        else
+          merge_request_diffs
+        end
+
+      column_shas = MergeRequestDiffCommit
+                      .where(merge_request_diff: diffs_relation)
+                      .limit(10_000)
+                      .pluck('sha')
+
       serialised_shas = merge_request_diffs.where.not(st_commits: nil).flat_map(&:commit_shas)
 
       (column_shas + serialised_shas).uniq
@@ -962,10 +958,6 @@ class MergeRequest < ActiveRecord::Base
     true
   end
 
-  def update_project_counter_caches?
-    state_changed?
-  end
-
   def update_project_counter_caches
     Projects::OpenMergeRequestsCountService.new(target_project).refresh_cache
   end
@@ -975,10 +967,4 @@ class MergeRequest < ActiveRecord::Base
 
     project.merge_requests.merged.where(author_id: author_id).empty?
   end
-
-  private
-
-  def write_ref
-    target_project.repository.fetch_source_branch(source_project.repository, source_branch, ref_path)
-  end
 end
diff --git a/app/models/namespace.rb b/app/models/namespace.rb
index 0601a61a926..4d401e7ba18 100644
--- a/app/models/namespace.rb
+++ b/app/models/namespace.rb
@@ -36,7 +36,7 @@ class Namespace < ActiveRecord::Base
   validates :path,
     presence: true,
     length: { maximum: 255 },
-    dynamic_path: true
+    namespace_path: true
 
   validate :nesting_level_allowed
 
diff --git a/app/models/pages_domain.rb b/app/models/pages_domain.rb
index 2e824cda525..43c77f3f2a2 100644
--- a/app/models/pages_domain.rb
+++ b/app/models/pages_domain.rb
@@ -69,6 +69,10 @@ class PagesDomain < ActiveRecord::Base
     current < x509.not_before || x509.not_after < current
   end
 
+  def expiration
+    x509&.not_after
+  end
+
   def subject
     return unless x509
     x509.subject.to_s
diff --git a/app/models/project.rb b/app/models/project.rb
index 3f810ee977b..894ded2a9f6 100644
--- a/app/models/project.rb
+++ b/app/models/project.rb
@@ -186,7 +186,10 @@ class Project < ActiveRecord::Base
   has_one :import_data, class_name: 'ProjectImportData', inverse_of: :project, autosave: true
   has_one :project_feature, inverse_of: :project
   has_one :statistics, class_name: 'ProjectStatistics'
-  has_one :cluster, class_name: 'Gcp::Cluster', inverse_of: :project
+
+  has_one :cluster_project, class_name: 'Clusters::Project'
+  has_one :cluster, through: :cluster_project, class_name: 'Clusters::Cluster'
+  has_many :clusters, through: :cluster_project, class_name: 'Clusters::Cluster'
 
   # Container repositories need to remove data from the container registry,
   # which is not managed by the DB. Hence we're still using dependent: :destroy
@@ -213,6 +216,7 @@ class Project < ActiveRecord::Base
   has_many :active_runners, -> { active }, through: :runner_projects, source: :runner, class_name: 'Ci::Runner'
 
   has_one :auto_devops, class_name: 'ProjectAutoDevops'
+  has_many :custom_attributes, class_name: 'ProjectCustomAttribute'
 
   accepts_nested_attributes_for :variables, allow_destroy: true
   accepts_nested_attributes_for :project_feature, update_only: true
@@ -240,10 +244,8 @@ class Project < ActiveRecord::Base
               message: Gitlab::Regex.project_name_regex_message }
   validates :path,
     presence: true,
-    dynamic_path: true,
+    project_path: true,
     length: { maximum: 255 },
-    format: { with: Gitlab::PathRegex.project_path_format_regex,
-              message: Gitlab::PathRegex.project_path_format_message },
     uniqueness: { scope: :namespace_id }
 
   validates :namespace, presence: true
@@ -363,6 +365,7 @@ class Project < ActiveRecord::Base
   scope :abandoned, -> { where('projects.last_activity_at < ?', 6.months.ago) }
 
   scope :excluding_project, ->(project) { where.not(id: project) }
+  scope :import_started, -> { where(import_status: 'started') }
 
   state_machine :import_status, initial: :none do
     event :import_schedule do
@@ -701,10 +704,6 @@ class Project < ActiveRecord::Base
     import_type == 'gitea'
   end
 
-  def github_import?
-    import_type == 'github'
-  end
-
   def check_limit
     unless creator.can_create_project? || namespace.kind == 'group'
       projects_limit = creator.projects_limit
@@ -1044,6 +1043,18 @@ class Project < ActiveRecord::Base
     forked_from_project || fork_network&.root_project
   end
 
+  def lfs_storage_project
+    @lfs_storage_project ||= begin
+      result = self
+
+      # TODO: Make this go to the fork_network root immeadiatly
+      # dependant on the discussion in: https://gitlab.com/gitlab-org/gitlab-ce/issues/39769
+      result = result.fork_source while result&.forked?
+
+      result || self
+    end
+  end
+
   def personal?
     !group
   end
@@ -1188,6 +1199,10 @@ class Project < ActiveRecord::Base
     !!repository.exists?
   end
 
+  def wiki_repository_exists?
+    wiki.repository_exists?
+  end
+
   # update visibility_level of forks
   def update_forks_visibility_level
     return unless visibility_level < visibility_level_was
@@ -1431,6 +1446,31 @@ class Project < ActiveRecord::Base
     reload_repository!
   end
 
+  def after_import
+    repository.after_import
+    import_finish
+    remove_import_jid
+    update_project_counter_caches
+  end
+
+  def update_project_counter_caches
+    classes = [
+      Projects::OpenIssuesCountService,
+      Projects::OpenMergeRequestsCountService
+    ]
+
+    classes.each do |klass|
+      klass.new(self).refresh_cache
+    end
+  end
+
+  def remove_import_jid
+    return unless import_jid
+
+    Gitlab::SidekiqStatus.unset(import_jid)
+    update_column(:import_jid, nil)
+  end
+
   def running_or_pending_build_count(force: false)
     Rails.cache.fetch(['projects', id, 'running_or_pending_build_count'], force: force) do
       builds.running_or_pending.count(:all)
@@ -1688,6 +1728,17 @@ class Project < ActiveRecord::Base
     Gitlab::ReferenceCounter.new(gl_repository(is_wiki: wiki))
   end
 
+  # Refreshes the expiration time of the associated import job ID.
+  #
+  # This method can be used by asynchronous importers to refresh the status,
+  # preventing the StuckImportJobsWorker from marking the import as failed.
+  def refresh_import_jid_expiration
+    return unless import_jid
+
+    Gitlab::SidekiqStatus
+      .set(import_jid, StuckImportJobsWorker::IMPORT_JOBS_EXPIRATION)
+  end
+
   private
 
   def storage
diff --git a/app/models/project_custom_attribute.rb b/app/models/project_custom_attribute.rb
new file mode 100644
index 00000000000..3f1a7b86a82
--- /dev/null
+++ b/app/models/project_custom_attribute.rb
@@ -0,0 +1,6 @@
+class ProjectCustomAttribute < ActiveRecord::Base
+  belongs_to :project
+
+  validates :project, :key, :value, presence: true
+  validates :key, uniqueness: { scope: [:project_id] }
+end
diff --git a/app/models/project_services/chat_message/issue_message.rb b/app/models/project_services/chat_message/issue_message.rb
index 1327b075858..3273f41dbd2 100644
--- a/app/models/project_services/chat_message/issue_message.rb
+++ b/app/models/project_services/chat_message/issue_message.rb
@@ -39,7 +39,7 @@ module ChatMessage
     private
 
     def message
-      if state == 'opened'
+      if opened_issue?
         "[#{project_link}] Issue #{state} by #{user_combined_name}"
       else
         "[#{project_link}] Issue #{issue_link} #{state} by #{user_combined_name}"
diff --git a/app/models/project_services/kubernetes_service.rb b/app/models/project_services/kubernetes_service.rb
index 5c0b3338a62..5080acffb3c 100644
--- a/app/models/project_services/kubernetes_service.rb
+++ b/app/models/project_services/kubernetes_service.rb
@@ -136,6 +136,10 @@ class KubernetesService < DeploymentService
     { pods: read_pods }
   end
 
+  def kubeclient
+    @kubeclient ||= build_kubeclient!
+  end
+
   TEMPLATE_PLACEHOLDER = 'Kubernetes namespace'.freeze
 
   private
diff --git a/app/models/project_services/prometheus_service.rb b/app/models/project_services/prometheus_service.rb
index 217f753f05f..fa7b3f2bcaf 100644
--- a/app/models/project_services/prometheus_service.rb
+++ b/app/models/project_services/prometheus_service.rb
@@ -25,7 +25,7 @@ class PrometheusService < MonitoringService
   end
 
   def description
-    'Prometheus monitoring'
+    s_('PrometheusService|Prometheus monitoring')
   end
 
   def self.to_param
@@ -38,8 +38,8 @@ class PrometheusService < MonitoringService
         type: 'text',
         name: 'api_url',
         title: 'API URL',
-        placeholder: 'Prometheus API Base URL, like http://prometheus.example.com/',
-        help: 'By default, Prometheus listens on ‘http://localhost:9090’. It’s not recommended to change the default address and port as this might affect or conflict with other services running on the GitLab server.',
+        placeholder: s_('PrometheusService|Prometheus API Base URL, like http://prometheus.example.com/'),
+        help: s_('PrometheusService|By default, Prometheus listens on ‘http://localhost:9090’. It’s not recommended to change the default address and port as this might affect or conflict with other services running on the GitLab server.'),
         required: true
       }
     ]
diff --git a/app/models/project_wiki.rb b/app/models/project_wiki.rb
index 43de6809178..3eecbea8cbf 100644
--- a/app/models/project_wiki.rb
+++ b/app/models/project_wiki.rb
@@ -21,7 +21,7 @@ class ProjectWiki
   end
 
   delegate :empty?, to: :pages
-  delegate :repository_storage_path, to: :project
+  delegate :repository_storage_path, :hashed_storage?, to: :project
 
   def path
     @project.path + '.wiki'
diff --git a/app/models/repository.rb b/app/models/repository.rb
index 69cddb36b2e..3a89fa9264b 100644
--- a/app/models/repository.rb
+++ b/app/models/repository.rb
@@ -906,13 +906,13 @@ class Repository
     branch = Gitlab::Git::Branch.find(self, branch_or_name)
 
     if branch
-      root_ref_sha = commit(root_ref).sha
-      same_head = branch.target == root_ref_sha
+      @root_ref_sha ||= commit(root_ref).sha
+      same_head = branch.target == @root_ref_sha
       merged =
         if pre_loaded_merged_branches
           pre_loaded_merged_branches.include?(branch.name)
         else
-          ancestor?(branch.target, root_ref_sha)
+          ancestor?(branch.target, @root_ref_sha)
         end
 
       !same_head && merged
@@ -969,8 +969,12 @@ class Repository
     gitlab_shell.fetch_remote(raw_repository, remote, ssh_auth: ssh_auth, forced: forced, no_tags: no_tags)
   end
 
-  def fetch_source_branch(source_repository, source_branch, local_ref)
-    raw_repository.fetch_source_branch(source_repository.raw_repository, source_branch, local_ref)
+  def fetch_source_branch!(source_repository, source_branch, local_ref)
+    raw_repository.fetch_source_branch!(source_repository.raw_repository, source_branch, local_ref)
+  end
+
+  def remote_exists?(name)
+    raw_repository.remote_exists?(name)
   end
 
   def compare_source_branch(target_branch_name, source_repository, source_branch_name, straight:)
@@ -1058,6 +1062,10 @@ class Repository
     blob_data_at(sha, path)
   end
 
+  def fetch_ref(source_repository, source_ref:, target_ref:)
+    raw_repository.fetch_ref(source_repository.raw_repository, source_ref: source_ref, target_ref: target_ref)
+  end
+
   private
 
   # TODO Generice finder, later split this on finders by Ref or Oid
diff --git a/app/models/user.rb b/app/models/user.rb
index bcda4564595..be8112749bf 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -146,7 +146,7 @@ class User < ActiveRecord::Base
     presence: true,
     numericality: { greater_than_or_equal_to: 0, less_than_or_equal_to: Gitlab::Database::MAX_INT_VALUE }
   validates :username,
-    dynamic_path: true,
+    user_path: true,
     presence: true,
     uniqueness: { case_sensitive: false }
 
@@ -164,12 +164,13 @@ class User < ActiveRecord::Base
   before_validation :set_notification_email, if: :email_changed?
   before_validation :set_public_email, if: :public_email_changed?
   before_save :ensure_incoming_email_token
-  before_save :ensure_user_rights_and_limits, if: :external_changed?
+  before_save :ensure_user_rights_and_limits, if: ->(user) { user.new_record? || user.external_changed? }
   before_save :skip_reconfirmation!, if: ->(user) { user.email_changed? && user.read_only_attribute?(:email) }
   before_save :check_for_verified_email, if: ->(user) { user.email_changed? && !user.new_record? }
   after_save :ensure_namespace_correct
   after_update :username_changed_hook, if: :username_changed?
   after_destroy :post_destroy_hook
+  after_destroy :remove_key_cache
   after_commit :update_emails_with_primary_email, on: :update, if: -> { previous_changes.key?('email') }
   after_commit :update_invalid_gpg_signatures, on: :update, if: -> { previous_changes.key?('email') }
 
@@ -267,18 +268,23 @@ class User < ActiveRecord::Base
       end
     end
 
+    def for_github_id(id)
+      joins(:identities)
+        .where(identities: { provider: :github, extern_uid: id.to_s })
+    end
+
     # Find a User by their primary email or any associated secondary email
     def find_by_any_email(email)
-      sql = 'SELECT *
-      FROM users
-      WHERE id IN (
-        SELECT id FROM users WHERE email = :email
-        UNION
-        SELECT emails.user_id FROM emails WHERE email = :email
-      )
-      LIMIT 1;'
+      by_any_email(email).take
+    end
+
+    # Returns a relation containing all the users for the given Email address
+    def by_any_email(email)
+      users = where(email: email)
+      emails = joins(:emails).where(emails: { email: email })
+      union = Gitlab::SQL::Union.new([users, emails])
 
-      User.find_by_sql([sql, { email: email }]).first
+      from("(#{union.to_sql}) #{table_name}")
     end
 
     def filter(filter_name)
@@ -619,7 +625,9 @@ class User < ActiveRecord::Base
   end
 
   def require_ssh_key?
-    keys.count == 0 && Gitlab::ProtocolAccess.allowed?('ssh')
+    count = Users::KeysCountService.new(self).count
+
+    count.zero? && Gitlab::ProtocolAccess.allowed?('ssh')
   end
 
   def require_password_creation?
@@ -881,6 +889,10 @@ class User < ActiveRecord::Base
     system_hook_service.execute_hooks_for(self, :destroy)
   end
 
+  def remove_key_cache
+    Users::KeysCountService.new(self).delete_cache
+  end
+
   def delete_async(deleted_by:, params: {})
     block if params[:hard_delete]
     DeleteUserWorker.perform_async(deleted_by.id, id, params)
@@ -916,7 +928,16 @@ class User < ActiveRecord::Base
   end
 
   def manageable_namespaces
-    @manageable_namespaces ||= [namespace] + owned_groups + masters_groups
+    @manageable_namespaces ||= [namespace] + manageable_groups
+  end
+
+  def manageable_groups
+    union = Gitlab::SQL::Union.new([owned_groups.select(:id),
+                                    masters_groups.select(:id)])
+    arel_union = Arel::Nodes::SqlLiteral.new(union.to_sql)
+    owned_and_master_groups = Group.where(Group.arel_table[:id].in(arel_union))
+
+    Gitlab::GroupHierarchy.new(owned_and_master_groups).base_and_descendants
   end
 
   def namespaces
@@ -1139,8 +1160,9 @@ class User < ActiveRecord::Base
       self.can_create_group = false
       self.projects_limit   = 0
     else
-      self.can_create_group = gitlab_config.default_can_create_group
-      self.projects_limit = current_application_settings.default_projects_limit
+      # Only revert these back to the default if they weren't specifically changed in this update.
+      self.can_create_group = gitlab_config.default_can_create_group unless can_create_group_changed?
+      self.projects_limit = current_application_settings.default_projects_limit unless projects_limit_changed?
     end
   end
 
diff --git a/app/policies/ci/build_policy.rb b/app/policies/ci/build_policy.rb
index 984e5482288..1ab391a5a9d 100644
--- a/app/policies/ci/build_policy.rb
+++ b/app/policies/ci/build_policy.rb
@@ -10,6 +10,15 @@ module Ci
       end
     end
 
-    rule { protected_ref }.prevent :update_build
+    condition(:owner_of_job) do
+      can?(:developer_access) && @subject.triggered_by?(@user)
+    end
+
+    rule { protected_ref }.policy do
+      prevent :update_build
+      prevent :erase_build
+    end
+
+    rule { can?(:master_access) | owner_of_job }.enable :erase_build
   end
 end
diff --git a/app/policies/gcp/cluster_policy.rb b/app/policies/clusters/cluster_policy.rb
index e77173ea6e1..1f7c13072b9 100644
--- a/app/policies/gcp/cluster_policy.rb
+++ b/app/policies/clusters/cluster_policy.rb
@@ -1,8 +1,8 @@
-module Gcp
+module Clusters
   class ClusterPolicy < BasePolicy
     alias_method :cluster, :subject
 
-    delegate { @subject.project }
+    delegate { cluster.project }
 
     rule { can?(:master_access) }.policy do
       enable :update_cluster
diff --git a/app/presenters/gcp/cluster_presenter.rb b/app/presenters/clusters/cluster_presenter.rb
index f7908f92a37..01cb59d0d44 100644
--- a/app/presenters/gcp/cluster_presenter.rb
+++ b/app/presenters/clusters/cluster_presenter.rb
@@ -1,9 +1,9 @@
-module Gcp
+module Clusters
   class ClusterPresenter < Gitlab::View::Presenter::Delegated
     presents :cluster
 
     def gke_cluster_url
-      "https://console.cloud.google.com/kubernetes/clusters/details/#{gcp_cluster_zone}/#{gcp_cluster_name}"
+      "https://console.cloud.google.com/kubernetes/clusters/details/#{provider.zone}/#{name}" if gcp?
     end
   end
 end
diff --git a/app/serializers/blob_entity.rb b/app/serializers/blob_entity.rb
index 56f173e5a27..ad039a2623d 100644
--- a/app/serializers/blob_entity.rb
+++ b/app/serializers/blob_entity.rb
@@ -3,10 +3,6 @@ class BlobEntity < Grape::Entity
 
   expose :id, :path, :name, :mode
 
-  expose :last_commit do |blob|
-    request.project.repository.last_commit_for_path(blob.commit_id, blob.path)
-  end
-
   expose :icon do |blob|
     IconsHelper.file_type_icon_class('file', blob.mode, blob.name)
   end
diff --git a/app/serializers/build_details_entity.rb b/app/serializers/build_details_entity.rb
index 8c89eea607f..69d46f5ec14 100644
--- a/app/serializers/build_details_entity.rb
+++ b/app/serializers/build_details_entity.rb
@@ -6,7 +6,7 @@ class BuildDetailsEntity < JobEntity
   expose :pipeline, using: PipelineEntity
 
   expose :erased_by, if: -> (*) { build.erased? }, using: UserEntity
-  expose :erase_path, if: -> (*) { build.erasable? && can?(current_user, :update_build, project) } do |build|
+  expose :erase_path, if: -> (*) { build.erasable? && can?(current_user, :erase_build, build) } do |build|
     erase_project_job_path(project, build)
   end
 
diff --git a/app/serializers/cluster_application_entity.rb b/app/serializers/cluster_application_entity.rb
new file mode 100644
index 00000000000..3f9a275ad08
--- /dev/null
+++ b/app/serializers/cluster_application_entity.rb
@@ -0,0 +1,5 @@
+class ClusterApplicationEntity < Grape::Entity
+  expose :name
+  expose :status_name, as: :status
+  expose :status_reason
+end
diff --git a/app/serializers/cluster_entity.rb b/app/serializers/cluster_entity.rb
index 08a113c4d8a..7e5b0997878 100644
--- a/app/serializers/cluster_entity.rb
+++ b/app/serializers/cluster_entity.rb
@@ -3,4 +3,5 @@ class ClusterEntity < Grape::Entity
 
   expose :status_name, as: :status
   expose :status_reason
+  expose :applications, using: ClusterApplicationEntity
 end
diff --git a/app/serializers/cluster_serializer.rb b/app/serializers/cluster_serializer.rb
index 2c87202a105..2e13c1501e7 100644
--- a/app/serializers/cluster_serializer.rb
+++ b/app/serializers/cluster_serializer.rb
@@ -2,6 +2,6 @@ class ClusterSerializer < BaseSerializer
   entity ClusterEntity
 
   def represent_status(resource)
-    represent(resource, { only: [:status, :status_reason] })
+    represent(resource, { only: [:status, :status_reason, :applications] })
   end
 end
diff --git a/app/serializers/issue_entity.rb b/app/serializers/issue_entity.rb
index 5f47592e4ad..9d52b8d9752 100644
--- a/app/serializers/issue_entity.rb
+++ b/app/serializers/issue_entity.rb
@@ -3,7 +3,6 @@ class IssueEntity < IssuableEntity
 
   expose :state
   expose :deleted_at
-  expose :branch_name
   expose :confidential
   expose :discussion_locked
   expose :assignees, using: API::Entities::UserBasic
diff --git a/app/serializers/tree_entity.rb b/app/serializers/tree_entity.rb
index 555e5cf83bd..9f1b485347f 100644
--- a/app/serializers/tree_entity.rb
+++ b/app/serializers/tree_entity.rb
@@ -3,10 +3,6 @@ class TreeEntity < Grape::Entity
 
   expose :id, :path, :name, :mode
 
-  expose :last_commit do |tree|
-    request.project.repository.last_commit_for_path(tree.commit_id, tree.path)
-  end
-
   expose :icon do |tree|
     IconsHelper.file_type_icon_class('folder', tree.mode, tree.name)
   end
diff --git a/app/serializers/tree_root_entity.rb b/app/serializers/tree_root_entity.rb
index 69702ae1493..496f070ddbd 100644
--- a/app/serializers/tree_root_entity.rb
+++ b/app/serializers/tree_root_entity.rb
@@ -18,4 +18,8 @@ class TreeRootEntity < Grape::Entity
 
     project_tree_path(request.project, File.join(request.ref, parent_tree_path))
   end
+
+  expose :last_commit_path do |tree|
+    logs_file_project_ref_path(request.project, request.ref, tree.path)
+  end
 end
diff --git a/app/services/base_count_service.rb b/app/services/base_count_service.rb
new file mode 100644
index 00000000000..99cc9a196e6
--- /dev/null
+++ b/app/services/base_count_service.rb
@@ -0,0 +1,34 @@
+# Base class for services that count a single resource such as the number of
+# issues for a project.
+class BaseCountService
+  def relation_for_count
+    raise(
+      NotImplementedError,
+      '"relation_for_count" must be implemented and return an ActiveRecord::Relation'
+    )
+  end
+
+  def count
+    Rails.cache.fetch(cache_key, raw: raw?) { uncached_count }.to_i
+  end
+
+  def refresh_cache
+    Rails.cache.write(cache_key, uncached_count, raw: raw?)
+  end
+
+  def uncached_count
+    relation_for_count.count
+  end
+
+  def delete_cache
+    Rails.cache.delete(cache_key)
+  end
+
+  def raw?
+    false
+  end
+
+  def cache_key
+    raise NotImplementedError, 'cache_key must be implemented and return a String'
+  end
+end
diff --git a/app/services/base_renderer.rb b/app/services/base_renderer.rb
new file mode 100644
index 00000000000..d6e30bd7008
--- /dev/null
+++ b/app/services/base_renderer.rb
@@ -0,0 +1,7 @@
+class BaseRenderer
+  attr_reader :current_user
+
+  def initialize(current_user = nil)
+    @current_user = current_user
+  end
+end
diff --git a/app/services/ci/create_cluster_service.rb b/app/services/ci/create_cluster_service.rb
deleted file mode 100644
index f7ee0e468e2..00000000000
--- a/app/services/ci/create_cluster_service.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-module Ci
-  class CreateClusterService < BaseService
-    def execute(access_token)
-      params['gcp_machine_type'] ||= GoogleApi::CloudPlatform::Client::DEFAULT_MACHINE_TYPE
-
-      cluster_params =
-        params.merge(user: current_user,
-                     gcp_token: access_token)
-
-      project.create_cluster(cluster_params).tap do |cluster|
-        ClusterProvisionWorker.perform_async(cluster.id) if cluster.persisted?
-      end
-    end
-  end
-end
diff --git a/app/services/ci/ensure_stage_service.rb b/app/services/ci/ensure_stage_service.rb
new file mode 100644
index 00000000000..dc2f49e8db1
--- /dev/null
+++ b/app/services/ci/ensure_stage_service.rb
@@ -0,0 +1,39 @@
+module Ci
+  ##
+  # We call this service everytime we persist a CI/CD job.
+  #
+  # In most cases a job should already have a stage assigned,  but in cases it
+  # doesn't have we need to either find existing one or create a brand new
+  # stage.
+  #
+  class EnsureStageService < BaseService
+    def execute(build)
+      @build = build
+
+      return if build.stage_id.present?
+      return if build.invalid?
+
+      ensure_stage.tap do |stage|
+        build.stage_id = stage.id
+
+        yield stage if block_given?
+      end
+    end
+
+    private
+
+    def ensure_stage
+      find_stage || create_stage
+    end
+
+    def find_stage
+      @build.pipeline.stages.find_by(name: @build.stage)
+    end
+
+    def create_stage
+      Ci::Stage.create!(name: @build.stage,
+                        pipeline: @build.pipeline,
+                        project: @build.project)
+    end
+  end
+end
diff --git a/app/services/ci/fetch_gcp_operation_service.rb b/app/services/ci/fetch_gcp_operation_service.rb
deleted file mode 100644
index 0b68e4d6ea9..00000000000
--- a/app/services/ci/fetch_gcp_operation_service.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-module Ci
-  class FetchGcpOperationService
-    def execute(cluster)
-      api_client =
-        GoogleApi::CloudPlatform::Client.new(cluster.gcp_token, nil)
-
-      operation = api_client.projects_zones_operations(
-        cluster.gcp_project_id,
-        cluster.gcp_cluster_zone,
-        cluster.gcp_operation_id)
-
-      yield(operation) if block_given?
-    rescue Google::Apis::ServerError, Google::Apis::ClientError, Google::Apis::AuthorizationError => e
-      return cluster.make_errored!("Failed to request to CloudPlatform; #{e.message}")
-    end
-  end
-end
diff --git a/app/services/ci/finalize_cluster_creation_service.rb b/app/services/ci/finalize_cluster_creation_service.rb
deleted file mode 100644
index 347875c5697..00000000000
--- a/app/services/ci/finalize_cluster_creation_service.rb
+++ /dev/null
@@ -1,33 +0,0 @@
-module Ci
-  class FinalizeClusterCreationService
-    def execute(cluster)
-      api_client =
-        GoogleApi::CloudPlatform::Client.new(cluster.gcp_token, nil)
-
-      begin
-        gke_cluster = api_client.projects_zones_clusters_get(
-          cluster.gcp_project_id,
-          cluster.gcp_cluster_zone,
-          cluster.gcp_cluster_name)
-      rescue Google::Apis::ServerError, Google::Apis::ClientError, Google::Apis::AuthorizationError => e
-        return cluster.make_errored!("Failed to request to CloudPlatform; #{e.message}")
-      end
-
-      endpoint = gke_cluster.endpoint
-      api_url = 'https://' + endpoint
-      ca_cert = Base64.decode64(gke_cluster.master_auth.cluster_ca_certificate)
-      username = gke_cluster.master_auth.username
-      password = gke_cluster.master_auth.password
-
-      kubernetes_token = Ci::FetchKubernetesTokenService.new(
-        api_url, ca_cert, username, password).execute
-
-      unless kubernetes_token
-        return cluster.make_errored!('Failed to get a default token of kubernetes')
-      end
-
-      Ci::IntegrateClusterService.new.execute(
-        cluster, endpoint, ca_cert, kubernetes_token, username, password)
-    end
-  end
-end
diff --git a/app/services/ci/integrate_cluster_service.rb b/app/services/ci/integrate_cluster_service.rb
deleted file mode 100644
index d123ce8d26b..00000000000
--- a/app/services/ci/integrate_cluster_service.rb
+++ /dev/null
@@ -1,26 +0,0 @@
-module Ci
-  class IntegrateClusterService
-    def execute(cluster, endpoint, ca_cert, token, username, password)
-      Gcp::Cluster.transaction do
-        cluster.update!(
-          enabled: true,
-          endpoint: endpoint,
-          ca_cert: ca_cert,
-          kubernetes_token: token,
-          username: username,
-          password: password,
-          service: cluster.project.find_or_initialize_service('kubernetes'),
-          status_event: :make_created)
-
-        cluster.service.update!(
-          active: true,
-          api_url: cluster.api_url,
-          ca_pem: ca_cert,
-          namespace: cluster.project_namespace,
-          token: token)
-      end
-    rescue ActiveRecord::RecordInvalid => e
-      cluster.make_errored!("Failed to integrate cluster into kubernetes_service: #{e.message}")
-    end
-  end
-end
diff --git a/app/services/ci/pipeline_trigger_service.rb b/app/services/ci/pipeline_trigger_service.rb
index 120af8c1e61..a9813d774bb 100644
--- a/app/services/ci/pipeline_trigger_service.rb
+++ b/app/services/ci/pipeline_trigger_service.rb
@@ -1,5 +1,7 @@
 module Ci
   class PipelineTriggerService < BaseService
+    include Gitlab::Utils::StrongMemoize
+
     def execute
       if trigger_from_token
         create_pipeline_from_trigger(trigger_from_token)
@@ -26,9 +28,9 @@ module Ci
     end
 
     def trigger_from_token
-      return @trigger if defined?(@trigger)
-
-      @trigger = Ci::Trigger.find_by_token(params[:token].to_s)
+      strong_memoize(:trigger) do
+        Ci::Trigger.find_by_token(params[:token].to_s)
+      end
     end
 
     def create_pipeline_variables!(pipeline)
diff --git a/app/services/ci/provision_cluster_service.rb b/app/services/ci/provision_cluster_service.rb
deleted file mode 100644
index 52d80b01813..00000000000
--- a/app/services/ci/provision_cluster_service.rb
+++ /dev/null
@@ -1,36 +0,0 @@
-module Ci
-  class ProvisionClusterService
-    def execute(cluster)
-      api_client =
-        GoogleApi::CloudPlatform::Client.new(cluster.gcp_token, nil)
-
-      begin
-        operation = api_client.projects_zones_clusters_create(
-          cluster.gcp_project_id,
-          cluster.gcp_cluster_zone,
-          cluster.gcp_cluster_name,
-          cluster.gcp_cluster_size,
-          machine_type: cluster.gcp_machine_type)
-      rescue Google::Apis::ServerError, Google::Apis::ClientError, Google::Apis::AuthorizationError => e
-        return cluster.make_errored!("Failed to request to CloudPlatform; #{e.message}")
-      end
-
-      unless operation.status == 'RUNNING' || operation.status == 'PENDING'
-        return cluster.make_errored!("Operation status is unexpected; #{operation.status_message}")
-      end
-
-      cluster.gcp_operation_id = api_client.parse_operation_id(operation.self_link)
-
-      unless cluster.gcp_operation_id
-        return cluster.make_errored!('Can not find operation_id from self_link')
-      end
-
-      if cluster.make_creating
-        WaitForClusterCreationWorker.perform_in(
-          WaitForClusterCreationWorker::INITIAL_INTERVAL, cluster.id)
-      else
-        return cluster.make_errored!("Failed to update cluster record; #{cluster.errors}")
-      end
-    end
-  end
-end
diff --git a/app/services/ci/update_cluster_service.rb b/app/services/ci/update_cluster_service.rb
deleted file mode 100644
index 70d88fca660..00000000000
--- a/app/services/ci/update_cluster_service.rb
+++ /dev/null
@@ -1,22 +0,0 @@
-module Ci
-  class UpdateClusterService < BaseService
-    def execute(cluster)
-      Gcp::Cluster.transaction do
-        cluster.update!(params)
-
-        if params['enabled'] == 'true'
-          cluster.service.update!(
-            active: true,
-            api_url: cluster.api_url,
-            ca_pem: cluster.ca_cert,
-            namespace: cluster.project_namespace,
-            token: cluster.kubernetes_token)
-        else
-          cluster.service.update!(active: false)
-        end
-      end
-    rescue ActiveRecord::RecordInvalid => e
-      cluster.errors.add(:base, e.message)
-    end
-  end
-end
diff --git a/app/services/clusters/applications/base_helm_service.rb b/app/services/clusters/applications/base_helm_service.rb
new file mode 100644
index 00000000000..9a4ce31cb39
--- /dev/null
+++ b/app/services/clusters/applications/base_helm_service.rb
@@ -0,0 +1,29 @@
+module Clusters
+  module Applications
+    class BaseHelmService
+      attr_accessor :app
+
+      def initialize(app)
+        @app = app
+      end
+
+      protected
+
+      def cluster
+        app.cluster
+      end
+
+      def kubeclient
+        cluster.kubeclient
+      end
+
+      def helm_api
+        @helm_api ||= Gitlab::Kubernetes::Helm.new(kubeclient)
+      end
+
+      def install_command
+        @install_command ||= app.install_command
+      end
+    end
+  end
+end
diff --git a/app/services/clusters/applications/check_installation_progress_service.rb b/app/services/clusters/applications/check_installation_progress_service.rb
new file mode 100644
index 00000000000..bde090eaeec
--- /dev/null
+++ b/app/services/clusters/applications/check_installation_progress_service.rb
@@ -0,0 +1,65 @@
+module Clusters
+  module Applications
+    class CheckInstallationProgressService < BaseHelmService
+      def execute
+        return unless app.installing?
+
+        case installation_phase
+        when Gitlab::Kubernetes::Pod::SUCCEEDED
+          on_success
+        when Gitlab::Kubernetes::Pod::FAILED
+          on_failed
+        else
+          check_timeout
+        end
+      rescue KubeException => ke
+        app.make_errored!("Kubernetes error: #{ke.message}") unless app.errored?
+      end
+
+      private
+
+      def on_success
+        app.make_installed!
+      ensure
+        remove_installation_pod
+      end
+
+      def on_failed
+        app.make_errored!(installation_errors || 'Installation silently failed')
+      ensure
+        remove_installation_pod
+      end
+
+      def check_timeout
+        if timeouted?
+          begin
+            app.make_errored!('Installation timeouted')
+          ensure
+            remove_installation_pod
+          end
+        else
+          ClusterWaitForAppInstallationWorker.perform_in(
+            ClusterWaitForAppInstallationWorker::INTERVAL, app.name, app.id)
+        end
+      end
+
+      def timeouted?
+        Time.now.utc - app.updated_at.to_time.utc > ClusterWaitForAppInstallationWorker::TIMEOUT
+      end
+
+      def remove_installation_pod
+        helm_api.delete_installation_pod!(install_command.pod_name)
+      rescue
+        # no-op
+      end
+
+      def installation_phase
+        helm_api.installation_status(install_command.pod_name)
+      end
+
+      def installation_errors
+        helm_api.installation_log(install_command.pod_name)
+      end
+    end
+  end
+end
diff --git a/app/services/clusters/applications/install_service.rb b/app/services/clusters/applications/install_service.rb
new file mode 100644
index 00000000000..8ceeec687cd
--- /dev/null
+++ b/app/services/clusters/applications/install_service.rb
@@ -0,0 +1,21 @@
+module Clusters
+  module Applications
+    class InstallService < BaseHelmService
+      def execute
+        return unless app.scheduled?
+
+        begin
+          app.make_installing!
+          helm_api.install(install_command)
+
+          ClusterWaitForAppInstallationWorker.perform_in(
+            ClusterWaitForAppInstallationWorker::INTERVAL, app.name, app.id)
+        rescue KubeException => ke
+          app.make_errored!("Kubernetes error: #{ke.message}")
+        rescue StandardError
+          app.make_errored!("Can't start installation process")
+        end
+      end
+    end
+  end
+end
diff --git a/app/services/clusters/applications/schedule_installation_service.rb b/app/services/clusters/applications/schedule_installation_service.rb
new file mode 100644
index 00000000000..eb8caa68ef7
--- /dev/null
+++ b/app/services/clusters/applications/schedule_installation_service.rb
@@ -0,0 +1,22 @@
+module Clusters
+  module Applications
+    class ScheduleInstallationService < ::BaseService
+      def execute
+        application_class.find_or_create_by!(cluster: cluster).try do |application|
+          application.make_scheduled!
+          ClusterInstallAppWorker.perform_async(application.name, application.id)
+        end
+      end
+
+      private
+
+      def application_class
+        params[:application_class]
+      end
+
+      def cluster
+        params[:cluster]
+      end
+    end
+  end
+end
diff --git a/app/services/clusters/create_service.rb b/app/services/clusters/create_service.rb
new file mode 100644
index 00000000000..1d407739b21
--- /dev/null
+++ b/app/services/clusters/create_service.rb
@@ -0,0 +1,29 @@
+module Clusters
+  class CreateService < BaseService
+    attr_reader :access_token
+
+    def execute(access_token)
+      @access_token = access_token
+
+      create_cluster.tap do |cluster|
+        ClusterProvisionWorker.perform_async(cluster.id) if cluster.persisted?
+      end
+    end
+
+    private
+
+    def create_cluster
+      Clusters::Cluster.create(cluster_params)
+    end
+
+    def cluster_params
+      return @cluster_params if defined?(@cluster_params)
+
+      params[:provider_gcp_attributes].try do |provider|
+        provider[:access_token] = access_token
+      end
+
+      @cluster_params = params.merge(user: current_user, projects: [project])
+    end
+  end
+end
diff --git a/app/services/clusters/gcp/fetch_operation_service.rb b/app/services/clusters/gcp/fetch_operation_service.rb
new file mode 100644
index 00000000000..a4cd3ca5c11
--- /dev/null
+++ b/app/services/clusters/gcp/fetch_operation_service.rb
@@ -0,0 +1,16 @@
+module Clusters
+  module Gcp
+    class FetchOperationService
+      def execute(provider)
+        operation = provider.api_client.projects_zones_operations(
+          provider.gcp_project_id,
+          provider.zone,
+          provider.operation_id)
+
+        yield(operation) if block_given?
+      rescue Google::Apis::ServerError, Google::Apis::ClientError, Google::Apis::AuthorizationError => e
+        provider.make_errored!("Failed to request to CloudPlatform; #{e.message}")
+      end
+    end
+  end
+end
diff --git a/app/services/clusters/gcp/finalize_creation_service.rb b/app/services/clusters/gcp/finalize_creation_service.rb
new file mode 100644
index 00000000000..cea56f4e849
--- /dev/null
+++ b/app/services/clusters/gcp/finalize_creation_service.rb
@@ -0,0 +1,56 @@
+module Clusters
+  module Gcp
+    class FinalizeCreationService
+      attr_reader :provider
+
+      def execute(provider)
+        @provider = provider
+
+        configure_provider
+        configure_kubernetes
+
+        cluster.save!
+      rescue Google::Apis::ServerError, Google::Apis::ClientError, Google::Apis::AuthorizationError => e
+        provider.make_errored!("Failed to request to CloudPlatform; #{e.message}")
+      rescue ActiveRecord::RecordInvalid => e
+        provider.make_errored!("Failed to configure GKE Cluster: #{e.message}")
+      end
+
+      private
+
+      def configure_provider
+        provider.endpoint = gke_cluster.endpoint
+        provider.status_event = :make_created
+      end
+
+      def configure_kubernetes
+        cluster.platform_type = :kubernetes
+        cluster.build_platform_kubernetes(
+          api_url: 'https://' + gke_cluster.endpoint,
+          ca_cert: Base64.decode64(gke_cluster.master_auth.cluster_ca_certificate),
+          username: gke_cluster.master_auth.username,
+          password: gke_cluster.master_auth.password,
+          token: request_kuberenetes_token)
+      end
+
+      def request_kuberenetes_token
+        Ci::FetchKubernetesTokenService.new(
+          'https://' + gke_cluster.endpoint,
+          Base64.decode64(gke_cluster.master_auth.cluster_ca_certificate),
+          gke_cluster.master_auth.username,
+          gke_cluster.master_auth.password).execute
+      end
+
+      def gke_cluster
+        @gke_cluster ||= provider.api_client.projects_zones_clusters_get(
+          provider.gcp_project_id,
+          provider.zone,
+          cluster.name)
+      end
+
+      def cluster
+        @cluster ||= provider.cluster
+      end
+    end
+  end
+end
diff --git a/app/services/clusters/gcp/provision_service.rb b/app/services/clusters/gcp/provision_service.rb
new file mode 100644
index 00000000000..8beea5a8cfb
--- /dev/null
+++ b/app/services/clusters/gcp/provision_service.rb
@@ -0,0 +1,47 @@
+module Clusters
+  module Gcp
+    class ProvisionService
+      attr_reader :provider
+
+      def execute(provider)
+        @provider = provider
+
+        get_operation_id do |operation_id|
+          if provider.make_creating(operation_id)
+            WaitForClusterCreationWorker.perform_in(
+              Clusters::Gcp::VerifyProvisionStatusService::INITIAL_INTERVAL,
+              provider.cluster_id)
+          else
+            provider.make_errored!("Failed to update provider record; #{provider.errors}")
+          end
+        end
+      end
+
+      private
+
+      def get_operation_id
+        operation = provider.api_client.projects_zones_clusters_create(
+          provider.gcp_project_id,
+          provider.zone,
+          provider.cluster.name,
+          provider.num_nodes,
+          machine_type: provider.machine_type)
+
+        unless operation.status == 'PENDING' || operation.status == 'RUNNING'
+          return provider.make_errored!("Operation status is unexpected; #{operation.status_message}")
+        end
+
+        operation_id = provider.api_client.parse_operation_id(operation.self_link)
+
+        unless operation_id
+          return provider.make_errored!('Can not find operation_id from self_link')
+        end
+
+        yield(operation_id)
+
+      rescue Google::Apis::ServerError, Google::Apis::ClientError, Google::Apis::AuthorizationError => e
+        provider.make_errored!("Failed to request to CloudPlatform; #{e.message}")
+      end
+    end
+  end
+end
diff --git a/app/services/clusters/gcp/verify_provision_status_service.rb b/app/services/clusters/gcp/verify_provision_status_service.rb
new file mode 100644
index 00000000000..bc33756f27c
--- /dev/null
+++ b/app/services/clusters/gcp/verify_provision_status_service.rb
@@ -0,0 +1,48 @@
+module Clusters
+  module Gcp
+    class VerifyProvisionStatusService
+      attr_reader :provider
+
+      INITIAL_INTERVAL = 2.minutes
+      EAGER_INTERVAL = 10.seconds
+      TIMEOUT = 20.minutes
+
+      def execute(provider)
+        @provider = provider
+
+        request_operation do |operation|
+          case operation.status
+          when 'PENDING', 'RUNNING'
+            continue_creation(operation)
+          when 'DONE'
+            finalize_creation
+          else
+            return provider.make_errored!("Unexpected operation status; #{operation.status} #{operation.status_message}")
+          end
+        end
+      end
+
+      private
+
+      def continue_creation(operation)
+        if elapsed_time_from_creation(operation) < TIMEOUT
+          WaitForClusterCreationWorker.perform_in(EAGER_INTERVAL, provider.cluster_id)
+        else
+          provider.make_errored!("Cluster creation time exceeds timeout; #{TIMEOUT}")
+        end
+      end
+
+      def elapsed_time_from_creation(operation)
+        Time.now.utc - operation.start_time.to_time.utc
+      end
+
+      def finalize_creation
+        Clusters::Gcp::FinalizeCreationService.new.execute(provider)
+      end
+
+      def request_operation(&blk)
+        Clusters::Gcp::FetchOperationService.new.execute(provider, &blk)
+      end
+    end
+  end
+end
diff --git a/app/services/clusters/update_service.rb b/app/services/clusters/update_service.rb
new file mode 100644
index 00000000000..989218e32a2
--- /dev/null
+++ b/app/services/clusters/update_service.rb
@@ -0,0 +1,7 @@
+module Clusters
+  class UpdateService < BaseService
+    def execute(cluster)
+      cluster.update(params)
+    end
+  end
+end
diff --git a/app/services/delete_merged_branches_service.rb b/app/services/delete_merged_branches_service.rb
index 077268b2388..cb235a85daf 100644
--- a/app/services/delete_merged_branches_service.rb
+++ b/app/services/delete_merged_branches_service.rb
@@ -13,7 +13,7 @@ class DeleteMergedBranchesService < BaseService
       # Prevent deletion of branches relevant to open merge requests
       branches -= merge_request_branch_names
       # Prevent deletion of protected branches
-      branches = branches.reject { |branch| project.protected_for?(branch) }
+      branches = branches.reject { |branch| ProtectedBranch.protected?(project, branch) }
 
       branches.each do |branch|
         DeleteBranchService.new(project, current_user).execute(branch)
diff --git a/app/services/events/render_service.rb b/app/services/events/render_service.rb
new file mode 100644
index 00000000000..0b62d8aedf1
--- /dev/null
+++ b/app/services/events/render_service.rb
@@ -0,0 +1,21 @@
+module Events
+  class RenderService < BaseRenderer
+    def execute(events, atom_request: false)
+      events.map(&:note).compact.group_by(&:project).each do |project, notes|
+        render_notes(notes, project, atom_request)
+      end
+    end
+
+    private
+
+    def render_notes(notes, project, atom_request)
+      Notes::RenderService.new(current_user).execute(notes, project, render_options(atom_request))
+    end
+
+    def render_options(atom_request)
+      return {} unless atom_request
+
+      { only_path: false, xhtml: true }
+    end
+  end
+end
diff --git a/app/services/issuable_base_service.rb b/app/services/issuable_base_service.rb
index 68b49d880f7..39a7299ff60 100644
--- a/app/services/issuable_base_service.rb
+++ b/app/services/issuable_base_service.rb
@@ -172,6 +172,7 @@ class IssuableBaseService < BaseService
     old_labels = issuable.labels.to_a
     old_mentioned_users = issuable.mentioned_users.to_a
     old_assignees = issuable.assignees.to_a
+    old_total_time_spent = issuable.total_time_spent
 
     label_ids = process_label_ids(params, existing_label_ids: issuable.label_ids)
     params[:label_ids] = label_ids if labels_changing?(issuable.label_ids, label_ids)
@@ -187,7 +188,7 @@ class IssuableBaseService < BaseService
 
       # We have to perform this check before saving the issuable as Rails resets
       # the changed fields upon calling #save.
-      update_project_counters = issuable.project && issuable.update_project_counter_caches?
+      update_project_counters = issuable.project && update_project_counter_caches?(issuable)
 
       if issuable.with_transaction_returning_status { issuable.save }
         # We do not touch as it will affect a update on updated_at field
@@ -208,7 +209,12 @@ class IssuableBaseService < BaseService
         invalidate_cache_counts(issuable, users: affected_assignees.compact)
         after_update(issuable)
         issuable.create_new_cross_references!(current_user)
-        execute_hooks(issuable, 'update', old_labels: old_labels, old_assignees: old_assignees)
+        execute_hooks(
+          issuable,
+          'update',
+          old_labels: old_labels,
+          old_assignees: old_assignees,
+          old_total_time_spent: old_total_time_spent)
 
         issuable.update_project_counter_caches if update_project_counters
       end
@@ -288,4 +294,8 @@ class IssuableBaseService < BaseService
   # override if needed
   def execute_hooks(issuable, action = 'open', params = {})
   end
+
+  def update_project_counter_caches?(issuable)
+    issuable.state_changed?
+  end
 end
diff --git a/app/services/issues/base_service.rb b/app/services/issues/base_service.rb
index 735257c4779..0f711bcc3cf 100644
--- a/app/services/issues/base_service.rb
+++ b/app/services/issues/base_service.rb
@@ -1,7 +1,7 @@
 module Issues
   class BaseService < ::IssuableBaseService
-    def hook_data(issue, action, old_labels: [], old_assignees: [])
-      hook_data = issue.to_hook_data(current_user, old_labels: old_labels, old_assignees: old_assignees)
+    def hook_data(issue, action, old_labels: [], old_assignees: [], old_total_time_spent: nil)
+      hook_data = issue.to_hook_data(current_user, old_labels: old_labels, old_assignees: old_assignees, old_total_time_spent: old_total_time_spent)
       hook_data[:object_attributes][:action] = action
 
       hook_data
@@ -22,8 +22,8 @@ module Issues
         issue, issue.project, current_user, old_assignees)
     end
 
-    def execute_hooks(issue, action = 'open', old_labels: [], old_assignees: [])
-      issue_data  = hook_data(issue, action, old_labels: old_labels, old_assignees: old_assignees)
+    def execute_hooks(issue, action = 'open', old_labels: [], old_assignees: [], old_total_time_spent: nil)
+      issue_data  = hook_data(issue, action, old_labels: old_labels, old_assignees: old_assignees, old_total_time_spent: old_total_time_spent)
       hooks_scope = issue.confidential? ? :confidential_issue_hooks : :issue_hooks
       issue.project.execute_hooks(issue_data, hooks_scope)
       issue.project.execute_services(issue_data, hooks_scope)
@@ -45,5 +45,9 @@ module Issues
         params.delete(:assignee_ids)
       end
     end
+
+    def update_project_counter_caches?(issue)
+      super || issue.confidential_changed?
+    end
   end
 end
diff --git a/app/services/merge_requests/base_service.rb b/app/services/merge_requests/base_service.rb
index 112606a82d7..d3938b065bc 100644
--- a/app/services/merge_requests/base_service.rb
+++ b/app/services/merge_requests/base_service.rb
@@ -18,8 +18,8 @@ module MergeRequests
       super if changed_title
     end
 
-    def hook_data(merge_request, action, old_rev: nil, old_labels: [], old_assignees: [])
-      hook_data = merge_request.to_hook_data(current_user, old_labels: old_labels, old_assignees: old_assignees)
+    def hook_data(merge_request, action, old_rev: nil, old_labels: [], old_assignees: [], old_total_time_spent: nil)
+      hook_data = merge_request.to_hook_data(current_user, old_labels: old_labels, old_assignees: old_assignees, old_total_time_spent: old_total_time_spent)
       hook_data[:object_attributes][:action] = action
       if old_rev && !Gitlab::Git.blank_ref?(old_rev)
         hook_data[:object_attributes][:oldrev] = old_rev
@@ -28,9 +28,9 @@ module MergeRequests
       hook_data
     end
 
-    def execute_hooks(merge_request, action = 'open', old_rev: nil, old_labels: [], old_assignees: [])
+    def execute_hooks(merge_request, action = 'open', old_rev: nil, old_labels: [], old_assignees: [], old_total_time_spent: nil)
       if merge_request.project
-        merge_data = hook_data(merge_request, action, old_rev: old_rev, old_labels: old_labels, old_assignees: old_assignees)
+        merge_data = hook_data(merge_request, action, old_rev: old_rev, old_labels: old_labels, old_assignees: old_assignees, old_total_time_spent: old_total_time_spent)
         merge_request.project.execute_hooks(merge_data, :merge_request_hooks)
         merge_request.project.execute_services(merge_data, :merge_request_hooks)
       end
diff --git a/app/services/merge_requests/merge_service.rb b/app/services/merge_requests/merge_service.rb
index 156e7b2f078..1da4dbd9e96 100644
--- a/app/services/merge_requests/merge_service.rb
+++ b/app/services/merge_requests/merge_service.rb
@@ -18,15 +18,7 @@ module MergeRequests
 
       @merge_request = merge_request
 
-      unless @merge_request.mergeable?
-        return handle_merge_error(log_message: 'Merge request is not mergeable', save_message_on_model: true)
-      end
-
-      @source = find_merge_source
-
-      unless @source
-        return handle_merge_error(log_message: 'No source for merge', save_message_on_model: true)
-      end
+      error_check!
 
       merge_request.in_locked_state do
         if commit
@@ -41,6 +33,19 @@ module MergeRequests
 
     private
 
+    def error_check!
+      error =
+        if @merge_request.should_be_rebased?
+          'Only fast-forward merge is allowed for your project. Please update your source branch'
+        elsif !@merge_request.mergeable?
+          'Merge request is not mergeable'
+        elsif !source
+          'No source for merge'
+        end
+
+      raise MergeError, error if error
+    end
+
     def commit
       message = params[:commit_message] || merge_request.merge_commit_message
 
@@ -91,8 +96,8 @@ module MergeRequests
       merge_request.to_reference(full: true)
     end
 
-    def find_merge_source
-      merge_request.diff_head_sha
+    def source
+      @source ||= @merge_request.diff_head_sha
     end
   end
 end
diff --git a/app/services/notes/render_service.rb b/app/services/notes/render_service.rb
new file mode 100644
index 00000000000..a77e98c2b07
--- /dev/null
+++ b/app/services/notes/render_service.rb
@@ -0,0 +1,21 @@
+module Notes
+  class RenderService < BaseRenderer
+    # Renders a collection of Note instances.
+    #
+    # notes - The notes to render.
+    # project - The project to use for redacting.
+    # user - The user viewing the notes.
+
+    # Possible options:
+    # requested_path - The request path.
+    # project_wiki - The project's wiki.
+    # ref - The current Git reference.
+    # only_path - flag to turn relative paths into absolute ones.
+    # xhtml - flag to save the html in XHTML
+    def execute(notes, project, **opts)
+      renderer = Banzai::ObjectRenderer.new(project, current_user, **opts)
+
+      renderer.render(notes, :note)
+    end
+  end
+end
diff --git a/app/services/projects/count_service.rb b/app/services/projects/count_service.rb
index aa034315280..7e575b2d6f3 100644
--- a/app/services/projects/count_service.rb
+++ b/app/services/projects/count_service.rb
@@ -1,7 +1,7 @@
 module Projects
   # Base class for the various service classes that count project data (e.g.
   # issues or forks).
-  class CountService
+  class CountService < BaseCountService
     # The version of the cache format. This should be bumped whenever the
     # underlying logic changes. This removes the need for explicitly flushing
     # all caches.
@@ -11,29 +11,6 @@ module Projects
       @project = project
     end
 
-    def relation_for_count
-      raise(
-        NotImplementedError,
-        '"relation_for_count" must be implemented and return an ActiveRecord::Relation'
-      )
-    end
-
-    def count
-      Rails.cache.fetch(cache_key) { uncached_count }
-    end
-
-    def refresh_cache
-      Rails.cache.write(cache_key, uncached_count)
-    end
-
-    def uncached_count
-      relation_for_count.count
-    end
-
-    def delete_cache
-      Rails.cache.delete(cache_key)
-    end
-
     def cache_key_name
       raise(
         NotImplementedError,
diff --git a/app/services/projects/forks_count_service.rb b/app/services/projects/forks_count_service.rb
index 3a0fa84b868..d9bdf3a8ad7 100644
--- a/app/services/projects/forks_count_service.rb
+++ b/app/services/projects/forks_count_service.rb
@@ -1,6 +1,6 @@
 module Projects
   # Service class for getting and caching the number of forks of a project.
-  class ForksCountService < CountService
+  class ForksCountService < Projects::CountService
     def relation_for_count
       @project.forks
     end
diff --git a/app/services/projects/import_service.rb b/app/services/projects/import_service.rb
index 455b302d819..c3b11341b4d 100644
--- a/app/services/projects/import_service.rb
+++ b/app/services/projects/import_service.rb
@@ -4,8 +4,18 @@ module Projects
 
     Error = Class.new(StandardError)
 
+    # Returns true if this importer is supposed to perform its work in the
+    # background.
+    #
+    # This method will only return `true` if async importing is explicitly
+    # supported by an importer class (`Gitlab::GithubImport::ParallelImporter`
+    # for example).
+    def async?
+      has_importer? && !!importer_class.try(:async?)
+    end
+
     def execute
-      add_repository_to_project unless project.gitlab_project_import?
+      add_repository_to_project
 
       import_data
 
@@ -17,6 +27,14 @@ module Projects
     private
 
     def add_repository_to_project
+      if project.external_import? && !unknown_url?
+        raise Error, 'Blocked import URL.' if Gitlab::UrlBlocker.blocked_url?(project.import_url)
+      end
+
+      # We should skip the repository for a GitHub import or GitLab project import,
+      # because these importers fetch the project repositories for us.
+      return if has_importer? && importer_class.try(:imports_repository?)
+
       if unknown_url?
         # In this case, we only want to import issues, not a repository.
         create_repository
@@ -32,12 +50,6 @@ module Projects
     end
 
     def import_repository
-      raise Error, 'Blocked import URL.' if Gitlab::UrlBlocker.blocked_url?(project.import_url)
-
-      # We should return early for a GitHub import because the new GitHub
-      # importer fetch the project repositories for us.
-      return if project.github_import?
-
       begin
         if project.gitea_import?
           fetch_repository
@@ -75,12 +87,16 @@ module Projects
       end
     end
 
+    def importer_class
+      @importer_class ||= Gitlab::ImportSources.importer(project.import_type)
+    end
+
     def has_importer?
       Gitlab::ImportSources.importer_names.include?(project.import_type)
     end
 
     def importer
-      Gitlab::ImportSources.importer(project.import_type).new(project)
+      importer_class.new(project)
     end
 
     def unknown_url?
diff --git a/app/services/projects/open_issues_count_service.rb b/app/services/projects/open_issues_count_service.rb
index 3c0d186a73c..25de97325e2 100644
--- a/app/services/projects/open_issues_count_service.rb
+++ b/app/services/projects/open_issues_count_service.rb
@@ -1,7 +1,7 @@
 module Projects
   # Service class for counting and caching the number of open issues of a
   # project.
-  class OpenIssuesCountService < CountService
+  class OpenIssuesCountService < Projects::CountService
     def relation_for_count
       # We don't include confidential issues in this number since this would
       # expose the number of confidential issues to non project members.
diff --git a/app/services/projects/open_merge_requests_count_service.rb b/app/services/projects/open_merge_requests_count_service.rb
index 2a90f78b90d..77e6448fd5e 100644
--- a/app/services/projects/open_merge_requests_count_service.rb
+++ b/app/services/projects/open_merge_requests_count_service.rb
@@ -1,7 +1,7 @@
 module Projects
   # Service class for counting and caching the number of open merge requests of
   # a project.
-  class OpenMergeRequestsCountService < CountService
+  class OpenMergeRequestsCountService < Projects::CountService
     def relation_for_count
       @project.merge_requests.opened
     end
diff --git a/app/services/system_note_service.rb b/app/services/system_note_service.rb
index 69bd19c1977..e946218824c 100644
--- a/app/services/system_note_service.rb
+++ b/app/services/system_note_service.rb
@@ -481,17 +481,7 @@ module SystemNoteService
   #
   # Returns Boolean
   def cross_reference_exists?(noteable, mentioner)
-    # Initial scope should be system notes of this noteable type
-    notes = Note.system.where(noteable_type: noteable.class)
-
-    notes =
-      if noteable.is_a?(Commit)
-        # Commits have non-integer IDs, so they're stored in `commit_id`
-        notes.where(commit_id: noteable.id)
-      else
-        notes.where(noteable_id: noteable.id)
-      end
-
+    notes = noteable.notes.system
     notes_for_mentioner(mentioner, noteable, notes).exists?
   end
 
diff --git a/app/services/users/keys_count_service.rb b/app/services/users/keys_count_service.rb
new file mode 100644
index 00000000000..f82d27eded9
--- /dev/null
+++ b/app/services/users/keys_count_service.rb
@@ -0,0 +1,27 @@
+# frozen_string_literal: true
+
+module Users
+  # Service class for getting the number of SSH keys that belong to a user.
+  class KeysCountService < BaseCountService
+    attr_reader :user
+
+    # user - The User for which to get the number of SSH keys.
+    def initialize(user)
+      @user = user
+    end
+
+    def relation_for_count
+      user.keys
+    end
+
+    def raw?
+      # Since we're storing simple integers we don't need all of the additional
+      # Marshal data Rails includes by default.
+      true
+    end
+
+    def cache_key
+      "users/key-count-service/#{user.id}"
+    end
+  end
+end
diff --git a/app/validators/abstract_path_validator.rb b/app/validators/abstract_path_validator.rb
new file mode 100644
index 00000000000..adbccb65a84
--- /dev/null
+++ b/app/validators/abstract_path_validator.rb
@@ -0,0 +1,38 @@
+class AbstractPathValidator < ActiveModel::EachValidator
+  extend Gitlab::EncodingHelper
+
+  def self.path_regex
+    raise NotImplementedError
+  end
+
+  def self.format_regex
+    raise NotImplementedError
+  end
+
+  def self.format_error_message
+    raise NotImplementedError
+  end
+
+  def self.full_path(record, value)
+    value
+  end
+
+  def self.valid_path?(path)
+    encode!(path)
+    "#{path}/" =~ path_regex
+  end
+
+  def validate_each(record, attribute, value)
+    unless value =~ self.class.format_regex
+      record.errors.add(attribute, self.class.format_error_message)
+      return
+    end
+
+    full_path = self.class.full_path(record, value)
+    return unless full_path
+
+    unless self.class.valid_path?(full_path)
+      record.errors.add(attribute, "#{value} is a reserved name")
+    end
+  end
+end
diff --git a/app/validators/cluster_name_validator.rb b/app/validators/cluster_name_validator.rb
new file mode 100644
index 00000000000..13ec342f399
--- /dev/null
+++ b/app/validators/cluster_name_validator.rb
@@ -0,0 +1,24 @@
+# ClusterNameValidator
+#
+# Custom validator for ClusterName.
+class ClusterNameValidator < ActiveModel::EachValidator
+  def validate_each(record, attribute, value)
+    if record.user?
+      unless value.present?
+        record.errors.add(attribute, " has to be present")
+      end
+    elsif record.gcp?
+      if record.persisted? && record.name_changed?
+        record.errors.add(attribute, " can not be changed because it's synchronized with provider")
+      end
+
+      unless value.length >= 1 && value.length <= 63
+        record.errors.add(attribute, " is invalid syntax")
+      end
+
+      unless value =~ Gitlab::Regex.kubernetes_namespace_regex
+        record.errors.add(attribute, Gitlab::Regex.kubernetes_namespace_regex_message)
+      end
+    end
+  end
+end
diff --git a/app/validators/dynamic_path_validator.rb b/app/validators/dynamic_path_validator.rb
deleted file mode 100644
index 4688aabc2a8..00000000000
--- a/app/validators/dynamic_path_validator.rb
+++ /dev/null
@@ -1,53 +0,0 @@
-# DynamicPathValidator
-#
-# Custom validator for GitLab path values.
-# These paths are assigned to `Namespace` (& `Group` as a subclass) & `Project`
-#
-# Values are checked for formatting and exclusion from a list of illegal path
-# names.
-class DynamicPathValidator < ActiveModel::EachValidator
-  extend Gitlab::EncodingHelper
-
-  class << self
-    def valid_user_path?(path)
-      encode!(path)
-      "#{path}/" =~ Gitlab::PathRegex.root_namespace_path_regex
-    end
-
-    def valid_group_path?(path)
-      encode!(path)
-      "#{path}/" =~ Gitlab::PathRegex.full_namespace_path_regex
-    end
-
-    def valid_project_path?(path)
-      encode!(path)
-      "#{path}/" =~ Gitlab::PathRegex.full_project_path_regex
-    end
-  end
-
-  def path_valid_for_record?(record, value)
-    full_path = record.respond_to?(:build_full_path) ? record.build_full_path : value
-
-    return true unless full_path
-
-    case record
-    when Project
-      self.class.valid_project_path?(full_path)
-    when Group
-      self.class.valid_group_path?(full_path)
-    else # User or non-Group Namespace
-      self.class.valid_user_path?(full_path)
-    end
-  end
-
-  def validate_each(record, attribute, value)
-    unless value =~ Gitlab::PathRegex.namespace_format_regex
-      record.errors.add(attribute, Gitlab::PathRegex.namespace_format_message)
-      return
-    end
-
-    unless path_valid_for_record?(record, value)
-      record.errors.add(attribute, "#{value} is a reserved name")
-    end
-  end
-end
diff --git a/app/validators/namespace_path_validator.rb b/app/validators/namespace_path_validator.rb
new file mode 100644
index 00000000000..4a0aa64ae0c
--- /dev/null
+++ b/app/validators/namespace_path_validator.rb
@@ -0,0 +1,19 @@
+class NamespacePathValidator < AbstractPathValidator
+  extend Gitlab::EncodingHelper
+
+  def self.path_regex
+    Gitlab::PathRegex.full_namespace_path_regex
+  end
+
+  def self.format_regex
+    Gitlab::PathRegex.namespace_format_regex
+  end
+
+  def self.format_error_message
+    Gitlab::PathRegex.namespace_format_message
+  end
+
+  def self.full_path(record, value)
+    record.build_full_path
+  end
+end
diff --git a/app/validators/project_path_validator.rb b/app/validators/project_path_validator.rb
new file mode 100644
index 00000000000..829b596ad3c
--- /dev/null
+++ b/app/validators/project_path_validator.rb
@@ -0,0 +1,19 @@
+class ProjectPathValidator < AbstractPathValidator
+  extend Gitlab::EncodingHelper
+
+  def self.path_regex
+    Gitlab::PathRegex.full_project_path_regex
+  end
+
+  def self.format_regex
+    Gitlab::PathRegex.project_path_format_regex
+  end
+
+  def self.format_error_message
+    Gitlab::PathRegex.project_path_format_message
+  end
+
+  def self.full_path(record, value)
+    record.build_full_path
+  end
+end
diff --git a/app/validators/user_path_validator.rb b/app/validators/user_path_validator.rb
new file mode 100644
index 00000000000..adf02901802
--- /dev/null
+++ b/app/validators/user_path_validator.rb
@@ -0,0 +1,15 @@
+class UserPathValidator < AbstractPathValidator
+  extend Gitlab::EncodingHelper
+
+  def self.path_regex
+    Gitlab::PathRegex.root_namespace_path_regex
+  end
+
+  def self.format_regex
+    Gitlab::PathRegex.namespace_format_regex
+  end
+
+  def self.format_error_message
+    Gitlab::PathRegex.namespace_format_message
+  end
+end
diff --git a/app/views/admin/appearances/_form.html.haml b/app/views/admin/appearances/_form.html.haml
index 935787d1a4a..4a2238fe277 100644
--- a/app/views/admin/appearances/_form.html.haml
+++ b/app/views/admin/appearances/_form.html.haml
@@ -43,7 +43,7 @@
       = f.hidden_field :header_logo_cache
       = f.file_field :header_logo, class: ""
       .hint
-        Maximum file size is 1MB. Pages are optimized for a 72x72 px header logo
+        Maximum file size is 1MB. Pages are optimized for a 28px tall header logo
 
   .form-actions
     = f.submit 'Save', class: 'btn btn-save append-right-10'
diff --git a/app/views/admin/background_jobs/show.html.haml b/app/views/admin/background_jobs/show.html.haml
index 3ef8f2a3acb..f0cc4d7ee62 100644
--- a/app/views/admin/background_jobs/show.html.haml
+++ b/app/views/admin/background_jobs/show.html.haml
@@ -42,4 +42,4 @@
 
 
   .panel.panel-default
-    %iframe{ src: sidekiq_path, width: '100%', height: 970, style: "border: none" }
+    %iframe{ src: sidekiq_path, width: '100%', height: 970, style: "border: 0" }
diff --git a/app/views/admin/runners/index.html.haml b/app/views/admin/runners/index.html.haml
index 4965dffab9d..4f60be698e9 100644
--- a/app/views/admin/runners/index.html.haml
+++ b/app/views/admin/runners/index.html.haml
@@ -64,7 +64,7 @@
               %th Projects
               %th Jobs
               %th Tags
-              %th Last contact
+              %th= link_to 'Last contact', admin_runners_path(params.slice(:search).merge(sort: 'contacted_asc'))
               %th
 
           - @runners.each do |runner|
diff --git a/app/views/admin/runners/show.html.haml b/app/views/admin/runners/show.html.haml
index df2bf27be9d..6d8fad0eb8d 100644
--- a/app/views/admin/runners/show.html.haml
+++ b/app/views/admin/runners/show.html.haml
@@ -99,7 +99,7 @@
 
           %td.build-link
             - if project
-              = link_to ci_status_path(build.pipeline) do
+              = link_to pipeline_path(build.pipeline) do
                 %strong= build.pipeline.short_sha
 
           %td.timestamp
diff --git a/app/views/dashboard/projects/_blank_state_admin_welcome.html.haml b/app/views/dashboard/projects/_blank_state_admin_welcome.html.haml
index 57544559824..573a4b93d67 100644
--- a/app/views/dashboard/projects/_blank_state_admin_welcome.html.haml
+++ b/app/views/dashboard/projects/_blank_state_admin_welcome.html.haml
@@ -1,33 +1,41 @@
-.blank-state
-  .blank-state-icon
-    = custom_icon("add_new_user", size: 50)
-  .blank-state-body
-    %h3.blank-state-title
-      Add user
-    %p.blank-state-text
-      Add your team members and others to GitLab.
-    = link_to new_admin_user_path, class: "btn btn-new" do
-      New user
+.blank-state-row
+  = link_to new_project_path, class: "blank-state-link" do
+    .blank-state
+      .blank-state-icon
+        = custom_icon("add_new_project", size: 50)
+      .blank-state-body
+        %h3.blank-state-title
+          Create a project
+        %p.blank-state-text
+          Projects are where you store your code, access issues, wiki and other features of GitLab.
 
-.blank-state
-  .blank-state-icon
-    = custom_icon("configure_server", size: 50)
-  .blank-state-body
-    %h3.blank-state-title
-      Configure GitLab
-    %p.blank-state-text
-      Make adjustments to how your GitLab instance is set up.
-    = link_to admin_root_path, class: "btn btn-new" do
-      Configure
+  - if current_user.can_create_group?
+    = link_to admin_root_path, class: "blank-state-link" do
+      .blank-state
+        .blank-state-icon
+          = custom_icon("add_new_group", size: 50)
+        .blank-state-body
+          %h3.blank-state-title
+            Create a group
+          %p.blank-state-text
+            Groups are a great way to organize projects and people.
 
-- if current_user.can_create_group?
-  .blank-state
-    .blank-state-icon
-      = custom_icon("add_new_group", size: 50)
-    .blank-state-body
-      %h3.blank-state-title
-        Create a group
-      %p.blank-state-text
-        Groups are a great way to organize projects and people.
-      = link_to new_group_path, class: "btn btn-new" do
-        New group
+    = link_to new_admin_user_path, class: "blank-state-link" do
+      .blank-state
+        .blank-state-icon
+          = custom_icon("add_new_user", size: 50)
+        .blank-state-body
+          %h3.blank-state-title
+            Add people
+          %p.blank-state-text
+            Add your team members and others to GitLab.
+
+  = link_to admin_root_path, class: "blank-state-link" do
+    .blank-state
+      .blank-state-icon
+        = custom_icon("configure_server", size: 50)
+      .blank-state-body
+        %h3.blank-state-title
+          Configure GitLab
+        %p.blank-state-text
+          Make adjustments to how your GitLab instance is set up.
diff --git a/app/views/dashboard/projects/_blank_state_welcome.html.haml b/app/views/dashboard/projects/_blank_state_welcome.html.haml
index a93a3415ee1..8d5bddbb288 100644
--- a/app/views/dashboard/projects/_blank_state_welcome.html.haml
+++ b/app/views/dashboard/projects/_blank_state_welcome.html.haml
@@ -1,48 +1,58 @@
 - public_project_count = ProjectsFinder.new(current_user: current_user).execute.count
 
-- if current_user.can_create_group?
-  .blank-state
-    .blank-state-icon
-      = custom_icon("add_new_group", size: 50)
-    .blank-state-body
-      %h3.blank-state-title
-        Create a group for several dependent projects.
-      %p.blank-state-text
-        Groups are the best way to manage projects and members.
-      = link_to new_group_path, class: "btn btn-new" do
-        New group
+.blank-state-row
+  - if current_user.can_create_project?
+    = link_to new_project_path, class: "blank-state-link" do
+      .blank-state
+        .blank-state-icon
+          = custom_icon("add_new_project", size: 50)
+        .blank-state-body
+          %h3.blank-state-title
+            Create a project
+          %p.blank-state-text
+            Projects are where you store your code, access issues, wiki and other features of GitLab.
+  - else
+    .blank-state
+      .blank-state-icon
+        = custom_icon("add_new_project", size: 50)
+      .blank-state-body
+        %h3.blank-state-title
+          Create a project
+        %p.blank-state-text
+          If you are added to a project, it will be displayed here.
 
-.blank-state
-  .blank-state-icon
-    = custom_icon("add_new_project", size: 50)
-  .blank-state-body
-    %h3.blank-state-title
-      Create a project
-    %p.blank-state-text
-      - if current_user.can_create_project?
-        You don't have access to any projects right now.
-        You can create up to
-        %strong= number_with_delimiter(current_user.projects_limit)
-        = succeed "." do
-          = "project".pluralize(current_user.projects_limit)
-      - else
-        If you are added to a project, it will be displayed here.
-    - if current_user.can_create_project?
-      = link_to new_project_path, class: "btn btn-new" do
-        New project
+  - if current_user.can_create_group?
+    = link_to new_group_path, class: "blank-state-link" do
+      .blank-state
+        .blank-state-icon
+          = custom_icon("add_new_group", size: 50)
+        .blank-state-body
+          %h3.blank-state-title
+            Create a group
+          %p.blank-state-text
+            Groups are the best way to manage projects and members.
 
-- if public_project_count > 0
-  .blank-state
-    .blank-state-icon
-      = custom_icon("globe", size: 50)
-    .blank-state-body
-      %h3.blank-state-title
-        Explore public projects
-      %p.blank-state-text
-        There are
-        = number_with_delimiter(public_project_count)
-        public projects on this server.
-        Public projects are an easy way to allow
-        everyone to have read-only access.
-      = link_to trending_explore_projects_path, class: "btn btn-new" do
-        Browse projects
+  - if public_project_count > 0
+    = link_to trending_explore_projects_path, class: "blank-state-link" do
+      .blank-state
+        .blank-state-icon
+          = custom_icon("globe", size: 50)
+        .blank-state-body
+          %h3.blank-state-title
+            Explore public projects
+          %p.blank-state-text
+            There are
+            = number_with_delimiter(public_project_count)
+            public projects on this server.
+            Public projects are an easy way to allow
+            everyone to have read-only access.
+
+  = link_to "https://docs.gitlab.com/", class: "blank-state-link" do
+    .blank-state
+      .blank-state-icon
+        = custom_icon("lightbulb", size: 50)
+      .blank-state-body
+        %h3.blank-state-title
+          Learn more about GitLab
+        %p.blank-state-text
+          Take a look at the documentation to discover all of GitLab's capabilities.
diff --git a/app/views/dashboard/projects/_zero_authorized_projects.html.haml b/app/views/dashboard/projects/_zero_authorized_projects.html.haml
index ad3fac6d164..18a82feb189 100644
--- a/app/views/dashboard/projects/_zero_authorized_projects.html.haml
+++ b/app/views/dashboard/projects/_zero_authorized_projects.html.haml
@@ -1,12 +1,13 @@
-.row.blank-state-parent-container
+.blank-state-parent-container
   .section-container.section-welcome{ class: "#{ 'section-admin-welcome' if current_user.admin? }" }
     .container.section-body
-      .blank-state.blank-state-welcome
-        %h2.blank-state-welcome-title
-          Welcome to GitLab
-        %p.blank-state-text
-          Code, test, and deploy together
-      - if current_user.admin?
-        = render "blank_state_admin_welcome"
-      - else
-        = render "blank_state_welcome"
+      .row
+        .blank-state-welcome
+          %h2.blank-state-welcome-title
+            Welcome to GitLab
+          %p.blank-state-text
+            Code, test, and deploy together
+        - if current_user.admin?
+          = render "blank_state_admin_welcome"
+        - else
+          = render "blank_state_welcome"
diff --git a/app/views/dashboard/todos/_todo.html.haml b/app/views/dashboard/todos/_todo.html.haml
index 38fd053ae65..efe1fb99efc 100644
--- a/app/views/dashboard/todos/_todo.html.haml
+++ b/app/views/dashboard/todos/_todo.html.haml
@@ -36,7 +36,7 @@
     .todo-body
       .todo-note
         .md
-          = event_note(todo.body, project: todo.project)
+          = first_line_in_markdown(todo, :body, 150, project: todo.project)
 
   - if todo.pending?
     .todo-actions
diff --git a/app/views/doorkeeper/applications/_form.html.haml b/app/views/doorkeeper/applications/_form.html.haml
index b3313c7c985..cf0e0de1ca4 100644
--- a/app/views/doorkeeper/applications/_form.html.haml
+++ b/app/views/doorkeeper/applications/_form.html.haml
@@ -1,4 +1,4 @@
-= form_for application, url: doorkeeper_submit_path(application), html: {role: 'form'} do |f|
+= form_for application, url: doorkeeper_submit_path(application), html: { role: 'form', class: 'doorkeeper-app-form' } do |f|
   = form_errors(application)
 
   .form-group
diff --git a/app/views/doorkeeper/authorizations/new.html.haml b/app/views/doorkeeper/authorizations/new.html.haml
index 8ba88906714..6d9c6b5572a 100644
--- a/app/views/doorkeeper/authorizations/new.html.haml
+++ b/app/views/doorkeeper/authorizations/new.html.haml
@@ -1,5 +1,5 @@
 %main{ :role => "main" }
-  .modal-no-backdrop
+  .modal-no-backdrop.modal-doorkeepr-auth
     .modal-content
       .modal-header
         %h3.page-title
@@ -16,14 +16,26 @@
               %strong= @pre_auth.client.name
               will allow them to interact with GitLab as an admin as well. Proceed with caution.
         %p
-          You are about to authorize
+          An application called
           = link_to @pre_auth.client.name, @pre_auth.redirect_uri, target: '_blank', rel: 'noopener noreferrer'
-          to use your account.
-          - if @pre_auth.scopes
+          is requesting access to your GitLab account.
+
+          - auth_app_owner = @pre_auth.client.application.owner
+          - if auth_app_owner
+            This application was created by
+            = succeed "." do
+              = link_to auth_app_owner.name, user_path(auth_app_owner)
+
+          Please note that this application is not provided by GitLab and you should verify its authenticity before
+          allowing access.
+        - if @pre_auth.scopes
+          %p
             This application will be able to:
             %ul
               - @pre_auth.scopes.each do |scope|
-                %li= t scope, scope: [:doorkeeper, :scopes]
+                %li
+                  %strong= t scope, scope: [:doorkeeper, :scopes]
+                  .scope-description= t scope, scope: [:doorkeeper, :scope_desc]
         .form-actions.text-right
           = form_tag oauth_authorization_path, method: :delete, class: 'inline'  do
             = hidden_field_tag :client_id, @pre_auth.client.uid
diff --git a/app/views/events/_event_note.atom.haml b/app/views/events/_event_note.atom.haml
index 6fa2f9bd4db..7e264eb5575 100644
--- a/app/views/events/_event_note.atom.haml
+++ b/app/views/events/_event_note.atom.haml
@@ -1,2 +1,2 @@
 %div{ xmlns: "http://www.w3.org/1999/xhtml" }
-  = markdown(note.note, pipeline: :atom, project: note.project, author: note.author)
+  = markdown_field(note, :note)
diff --git a/app/views/events/event/_note.html.haml b/app/views/events/event/_note.html.haml
index df4b9562215..de6383e4097 100644
--- a/app/views/events/event/_note.html.haml
+++ b/app/views/events/event/_note.html.haml
@@ -10,7 +10,7 @@
 .event-body
   .event-note
     .md
-      = event_note(event.target.note, project: event.project)
+      = first_line_in_markdown(event.target, :note, 150, project: event.project)
     - note = event.target
     - if note.attachment.url
       - if note.attachment.image?
diff --git a/app/views/layouts/_search.html.haml b/app/views/layouts/_search.html.haml
index 29387d6627e..4c5cc249159 100644
--- a/app/views/layouts/_search.html.haml
+++ b/app/views/layouts/_search.html.haml
@@ -5,7 +5,7 @@
 - if @group && @group.persisted? && @group.path
   - group_data_attrs = { group_path: j(@group.path), name: @group.name, issues_path: issues_group_path(j(@group.path)), mr_path: merge_requests_group_path(j(@group.path)) }
 - if @project && @project.persisted?
-  - project_data_attrs = { project_path: j(@project.path), name: j(@project.name), issues_path: project_issues_path(@project), mr_path: project_merge_requests_path(@project) }
+  - project_data_attrs = { project_path: j(@project.path), name: j(@project.name), issues_path: project_issues_path(@project), mr_path: project_merge_requests_path(@project), issues_disabled: !@project.issues_enabled? }
 .search.search-form{ class: "#{'has-location-badge' if label.present?}" }
   = form_tag search_path, method: :get, class: 'navbar-form' do |f|
     .search-input-container
diff --git a/app/views/layouts/header/_default.html.haml b/app/views/layouts/header/_default.html.haml
index 5ff6ac5fc00..e2407f6a428 100644
--- a/app/views/layouts/header/_default.html.haml
+++ b/app/views/layouts/header/_default.html.haml
@@ -7,7 +7,7 @@
           = link_to root_path, title: 'Dashboard', id: 'logo' do
             = brand_header_logo
             %span.logo-text.hidden-xs
-              = render 'shared/logo_type.svg'
+              = brand_header_logo_type
 
         - if current_user
           = render "layouts/nav/dashboard"
@@ -61,7 +61,7 @@
                       = link_to "Help", help_path
                   %li.divider
                   %li
-                    = link_to "Sign out", destroy_user_session_path, method: :delete, class: "sign-out-link"
+                    = link_to "Sign out", destroy_user_session_path, class: "sign-out-link"
             - if session[:impersonator_id]
               %li.impersonation
                 = link_to admin_impersonation_path, class: 'impersonation-btn', method: :delete, title: "Stop impersonation", aria: { label: 'Stop impersonation' }, data: { toggle: 'tooltip', placement: 'bottom', container: 'body' } do
diff --git a/app/views/notify/_note_email.html.haml b/app/views/notify/_note_email.html.haml
index a80518f7986..3e36da31ea3 100644
--- a/app/views/notify/_note_email.html.haml
+++ b/app/views/notify/_note_email.html.haml
@@ -1,10 +1,15 @@
 - discussion = @note.discussion if @note.part_of_discussion?
+- diff_discussion = discussion&.diff_discussion?
+- on_image = discussion.on_image? if diff_discussion
+
 - if discussion
+  - phrase_end_char = on_image ? "." : ":"
+
   %p.details
-    = succeed ':' do
+    = succeed phrase_end_char do
       = link_to @note.author_name, user_url(@note.author)
 
-      - if discussion.diff_discussion?
+      - if diff_discussion
         - if discussion.new_discussion?
           started a new discussion
         - else
@@ -21,7 +26,7 @@
   %p.details
     #{link_to @note.author_name, user_url(@note.author)} commented:
 
-- if discussion&.diff_discussion?
+- if diff_discussion && !on_image
   = content_for :head do
     = stylesheet_link_tag 'mailers/highlighted_diff_email'
 
diff --git a/app/views/projects/clusters/_advanced_settings.html.haml b/app/views/projects/clusters/_advanced_settings.html.haml
index 6c162481dd8..97532f1e2bd 100644
--- a/app/views/projects/clusters/_advanced_settings.html.haml
+++ b/app/views/projects/clusters/_advanced_settings.html.haml
@@ -10,5 +10,5 @@
     %label.text-danger
       = s_('ClusterIntegration|Remove cluster integration')
     %p
-      = s_('ClusterIntegration|Removing cluster integration will remove the cluster configuration you have added to this project. It will not delete your project.')
+      = s_('ClusterIntegration|Removing cluster integration will remove the cluster configuration you have added to this project. It will not delete your cluster on Google Container Engine.')
     = link_to(s_('ClusterIntegration|Remove integration'), namespace_project_cluster_path(@project.namespace, @project, @cluster.id), method: :delete, class: 'btn btn-danger', data: { confirm: "Are you sure you want to remove cluster integration from this project? This will not delete your cluster on Google Container Engine"})
diff --git a/app/views/projects/clusters/_form.html.haml b/app/views/projects/clusters/_form.html.haml
index 371cdb1e403..1f8ae463d0f 100644
--- a/app/views/projects/clusters/_form.html.haml
+++ b/app/views/projects/clusters/_form.html.haml
@@ -4,34 +4,32 @@
       - link_to_help_page = link_to(s_('ClusterIntegration|help page'), help_page_path('user/project/clusters/index'), target: '_blank', rel: 'noopener noreferrer')
       = s_('ClusterIntegration|Read our %{link_to_help_page} on cluster integration.').html_safe % { link_to_help_page: link_to_help_page}
 
-      = form_for [@project.namespace.becomes(Namespace), @project, @cluster] do |field|
+      = form_for @cluster, url: namespace_project_clusters_path(@project.namespace, @project, @cluster), as: :cluster do |field|
+        = field.hidden_field :provider_type, value: :gcp
         = form_errors(@cluster)
         .form-group
-          = field.label :gcp_cluster_name, s_('ClusterIntegration|Cluster name')
-          = field.text_field :gcp_cluster_name, class: 'form-control'
+          = field.label :name, s_('ClusterIntegration|Cluster name')
+          = field.text_field :name, class: 'form-control'
 
-        .form-group
-          = field.label :gcp_project_id, s_('ClusterIntegration|Google Cloud Platform project ID')
-          = link_to(s_('ClusterIntegration|See your projects'), 'https://console.cloud.google.com/home/dashboard', target: '_blank', rel: 'noopener noreferrer')
-          = field.text_field :gcp_project_id, class: 'form-control'
-
-        .form-group
-          = field.label :gcp_cluster_zone, s_('ClusterIntegration|Zone')
-          = link_to(s_('ClusterIntegration|See zones'), 'https://cloud.google.com/compute/docs/regions-zones/regions-zones', target: '_blank', rel: 'noopener noreferrer')
-          = field.text_field :gcp_cluster_zone, class: 'form-control', placeholder: 'us-central1-a'
+        = field.fields_for :provider_gcp, @cluster.provider_gcp do |provider_gcp_field|
+          .form-group
+            = provider_gcp_field.label :gcp_project_id, s_('ClusterIntegration|Google Cloud Platform project ID')
+            = link_to(s_('ClusterIntegration|See your projects'), 'https://console.cloud.google.com/home/dashboard', target: '_blank', rel: 'noopener noreferrer')
+            = provider_gcp_field.text_field :gcp_project_id, class: 'form-control'
 
-        .form-group
-          = field.label :gcp_cluster_size, s_('ClusterIntegration|Number of nodes')
-          = field.text_field :gcp_cluster_size, class: 'form-control', placeholder: '3'
+          .form-group
+            = provider_gcp_field.label :zone, s_('ClusterIntegration|Zone')
+            = link_to(s_('ClusterIntegration|See zones'), 'https://cloud.google.com/compute/docs/regions-zones/regions-zones', target: '_blank', rel: 'noopener noreferrer')
+            = provider_gcp_field.text_field :zone, class: 'form-control', placeholder: 'us-central1-a'
 
-        .form-group
-          = field.label :gcp_machine_type, s_('ClusterIntegration|Machine type')
-          = link_to(s_('ClusterIntegration|See machine types'), 'https://cloud.google.com/compute/docs/machine-types', target: '_blank', rel: 'noopener noreferrer')
-          = field.text_field :gcp_machine_type, class: 'form-control', placeholder: 'n1-standard-4'
+          .form-group
+            = provider_gcp_field.label :num_nodes, s_('ClusterIntegration|Number of nodes')
+            = provider_gcp_field.text_field :num_nodes, class: 'form-control', placeholder: '3'
 
           .form-group
-          = field.label :project_namespace, s_('ClusterIntegration|Project namespace (optional, unique)')
-          = field.text_field :project_namespace, class: 'form-control', placeholder: @cluster.project_namespace_placeholder
+            = provider_gcp_field.label :machine_type, s_('ClusterIntegration|Machine type')
+            = link_to(s_('ClusterIntegration|See machine types'), 'https://cloud.google.com/compute/docs/machine-types', target: '_blank', rel: 'noopener noreferrer')
+            = provider_gcp_field.text_field :machine_type, class: 'form-control', placeholder: 'n1-standard-2'
 
         .form-group
           = field.submit s_('ClusterIntegration|Create cluster'), class: 'btn btn-save'
diff --git a/app/views/projects/clusters/_header.html.haml b/app/views/projects/clusters/_header.html.haml
index 0134d46491c..beb798e7154 100644
--- a/app/views/projects/clusters/_header.html.haml
+++ b/app/views/projects/clusters/_header.html.haml
@@ -11,4 +11,4 @@
       = s_('ClusterIntegration|Make sure your account %{link_to_requirements} to create clusters').html_safe % { link_to_requirements: link_to_requirements }
     %li
       - link_to_container_project = link_to(s_('ClusterIntegration|Google Container Engine project'), target: '_blank', rel: 'noopener noreferrer')
-      = s_('ClusterIntegration|A %{link_to_container_project} must have been created under this account').html_safe % { link_to_container_project: link_to_container_project }
+      = s_('ClusterIntegration|This account must have permissions to create a cluster in the %{link_to_container_project} specified below').html_safe % { link_to_container_project: link_to_container_project }
diff --git a/app/views/projects/clusters/new.html.haml b/app/views/projects/clusters/new.html.haml
index c538d41ffad..6b321f60212 100644
--- a/app/views/projects/clusters/new.html.haml
+++ b/app/views/projects/clusters/new.html.haml
@@ -1,9 +1,20 @@
 - breadcrumb_title "Cluster"
-- page_title _("New Cluster")
+- page_title _("Cluster")
 
 .row.prepend-top-default
   .col-sm-4
     = render 'sidebar'
   .col-sm-8
-    = render 'header'
-= render 'form'
+    - if @project.kubernetes_service&.active?
+      %h4.prepend-top-0= s_('ClusterIntegration|Cluster management')
+
+      %p= s_('ClusterIntegration|A cluster has been set up on this project through the Kubernetes integration page')
+      = link_to s_('ClusterIntegration|Manage Kubernetes integration'), edit_project_service_path(@project, :kubernetes), class: 'btn append-bottom-20'
+
+    - else
+      %h4.prepend-top-0= s_('ClusterIntegration|Choose how to set up cluster integration')
+
+      %p= s_('ClusterIntegration|Create a new cluster on Google Container Engine right from GitLab')
+      = link_to s_('ClusterIntegration|Create on GKE'), providers_gcp_new_namespace_project_clusters_path(@project.namespace, @project), class: 'btn append-bottom-20'
+      %p= s_('ClusterIntegration|Enter the details for an existing Kubernetes cluster')
+      = link_to s_('ClusterIntegration|Add an existing cluster'), edit_project_service_path(@project, :kubernetes), class: 'btn append-bottom-20'
diff --git a/app/views/projects/clusters/new_gcp.html.haml b/app/views/projects/clusters/new_gcp.html.haml
new file mode 100644
index 00000000000..48e6b6ae8e8
--- /dev/null
+++ b/app/views/projects/clusters/new_gcp.html.haml
@@ -0,0 +1,10 @@
+- breadcrumb_title "Cluster"
+- page_title _("New Cluster")
+
+.row.prepend-top-default
+  .col-sm-4
+    = render 'sidebar'
+  .col-sm-8
+    = render 'header'
+
+= render 'form'
diff --git a/app/views/projects/clusters/show.html.haml b/app/views/projects/clusters/show.html.haml
index dbe6f8beb95..b7671f5e3c4 100644
--- a/app/views/projects/clusters/show.html.haml
+++ b/app/views/projects/clusters/show.html.haml
@@ -4,11 +4,18 @@
 
 - expanded = Rails.env.test?
 
-- status_path = status_namespace_project_cluster_path(@cluster.project.namespace, @cluster.project, @cluster.id, format: :json) if can?(current_user, :admin_cluster, @cluster) && @cluster.on_creation?
+- status_path = status_namespace_project_cluster_path(@cluster.project.namespace, @cluster.project, @cluster.id, format: :json) if can?(current_user, :admin_cluster, @cluster)
 .edit-cluster-form.js-edit-cluster-form{ data: { status_path: status_path,
+  install_helm_path: install_applications_namespace_project_cluster_path(@cluster.project.namespace, @cluster.project, @cluster, :helm),
+  install_ingress_path: install_applications_namespace_project_cluster_path(@cluster.project.namespace, @cluster.project, @cluster, :ingress),
   toggle_status: @cluster.enabled? ? 'true': 'false',
   cluster_status: @cluster.status_name,
-  cluster_status_reason: @cluster.status_reason } }
+  cluster_status_reason: @cluster.status_reason,
+  help_path: help_page_path('user/project/clusters/index.md', anchor: 'installing-applications') } }
+
+
+  .js-cluster-application-notice
+    .flash-container
 
   %section.settings.no-animate.expanded
     %h4= s_('ClusterIntegration|Enable cluster integration')
@@ -33,7 +40,7 @@
         - else
           = s_('ClusterIntegration|Cluster integration is disabled for this project.')
 
-    = form_for [@project.namespace.becomes(Namespace), @project, @cluster] do |field|
+    = form_for @cluster, url: namespace_project_cluster_path(@project.namespace, @project, @cluster), as: :cluster do |field|
       = form_errors(@cluster)
       .form-group.append-bottom-20
         %label.append-bottom-10
@@ -49,7 +56,9 @@
           .form-group
             = field.submit _('Save'), class: 'btn btn-success'
 
-  %section.settings.no-animate#js-cluster-details{ class: ('expanded' if expanded) }
+  .cluster-applications-table#js-cluster-applications
+
+  %section.settings#js-cluster-details
     .settings-header
       %h4= s_('ClusterIntegration|Cluster details')
       %button.btn.js-settings-toggle
@@ -59,12 +68,12 @@
     .settings-content
 
       .form_group.append-bottom-20
-        %label.append-bottom-10{ for: 'cluter-name' }
+        %label.append-bottom-10{ for: 'cluster-name' }
           = s_('ClusterIntegration|Cluster name')
         .input-group
-          %input.form-control.cluster-name{ value: @cluster.gcp_cluster_name, disabled: true }
+          %input.form-control.cluster-name{ value: @cluster.name, disabled: true }
           %span.input-group-addon.clipboard-addon
-            = clipboard_button(text: @cluster.gcp_cluster_name, title: s_('ClusterIntegration|Copy cluster name'))
+            = clipboard_button(text: @cluster.name, title: s_('ClusterIntegration|Copy cluster name'))
 
   %section.settings.no-animate#js-cluster-advanced-settings{ class: ('expanded' if expanded) }
     .settings-header
diff --git a/app/views/projects/commit/_ajax_signature.html.haml b/app/views/projects/commit/_ajax_signature.html.haml
index 83821326aec..36b28c731a1 100644
--- a/app/views/projects/commit/_ajax_signature.html.haml
+++ b/app/views/projects/commit/_ajax_signature.html.haml
@@ -1,2 +1,2 @@
 - if commit.has_signature?
-  %button{ class: commit_signature_badge_classes('js-loading-gpg-badge'), data: { toggle: 'tooltip', placement: 'auto top', title: 'GPG signature (loading...)', 'commit-sha' => commit.sha } }
+  %a{ href: 'javascript:void(0)', tabindex: 0, class: commit_signature_badge_classes('js-loading-gpg-badge'), data: { toggle: 'tooltip', placement: 'auto top', title: 'GPG signature (loading...)', 'commit-sha' => commit.sha } }
diff --git a/app/views/projects/commit/_commit_box.html.haml b/app/views/projects/commit/_commit_box.html.haml
index ff17372fdd9..8b9c1bbb602 100644
--- a/app/views/projects/commit/_commit_box.html.haml
+++ b/app/views/projects/commit/_commit_box.html.haml
@@ -61,13 +61,13 @@
     %span.cgray= n_('parent', 'parents', @commit.parents.count)
     - @commit.parents.each do |parent|
       = link_to parent.short_id, project_commit_path(@project, parent), class: "commit-sha"
-    %span.commit-info.branches
+    .commit-info.branches
       %i.fa.fa-spinner.fa-spin
 
   - if @commit.last_pipeline
     - last_pipeline = @commit.last_pipeline
     .well-segment.pipeline-info
-      .status-icon-container{ class: "ci-status-icon-#{@commit.status}" }
+      .status-icon-container{ class: "ci-status-icon-#{last_pipeline.status}" }
         = link_to project_pipeline_path(@project, last_pipeline.id) do
           = ci_icon_for_status(last_pipeline.status)
       #{ _('Pipeline') }
diff --git a/app/views/projects/commit/_limit_exceeded_message.html.haml b/app/views/projects/commit/_limit_exceeded_message.html.haml
new file mode 100644
index 00000000000..84a52d49487
--- /dev/null
+++ b/app/views/projects/commit/_limit_exceeded_message.html.haml
@@ -0,0 +1,8 @@
+.has-tooltip{ class: "limit-box limit-box-#{objects} prepend-left-5", data: { title: "Project has too many #{label_for_message} to search"} }
+  .limit-icon
+    - if objects == :branch
+      = icon('code-fork')
+    - else
+      = icon('tag')
+  .limit-message
+    %span #{label_for_message.capitalize} unavailable
diff --git a/app/views/projects/commit/_signature_badge.html.haml b/app/views/projects/commit/_signature_badge.html.haml
index edff018ba6d..44aa8002f12 100644
--- a/app/views/projects/commit/_signature_badge.html.haml
+++ b/app/views/projects/commit/_signature_badge.html.haml
@@ -24,5 +24,5 @@
 
   = link_to('Learn more about signing commits', help_page_path('user/project/repository/gpg_signed_commits/index.md'), class: 'gpg-popover-help-link')
 
-%button{ class: css_classes, data: { toggle: 'popover', html: 'true', placement: 'auto top', title: title, content: content } }
+%a{ href: 'javascript:void(0)', tabindex: 0, class: css_classes, data: { toggle: 'popover', html: 'true', placement: 'auto top', title: title, content: content } }
   = label
diff --git a/app/views/projects/commit/branches.html.haml b/app/views/projects/commit/branches.html.haml
index 911c9ddce06..8611129b356 100644
--- a/app/views/projects/commit/branches.html.haml
+++ b/app/views/projects/commit/branches.html.haml
@@ -1,15 +1,15 @@
-- if @branches.any? || @tags.any?
+- if @branches_limit_exceeded
+  = render 'limit_exceeded_message', objects: :branch, label_for_message: "branches"
+- elsif @branches.any?
   - branch = commit_default_branch(@project, @branches)
-  = link_to(project_ref_path(@project, branch), class: "label label-gray ref-name") do
-    = icon('code-fork')
-    = branch
+  = commit_branch_link(project_ref_path(@project, branch), branch)
 
-  -# `commit_default_branch` deletes the default branch from `@branches`,
-  -# so only render this if we have more branches left
-  - if @branches.any? || @tags.any?
-    %span
-      = link_to "…", "#", class: "js-details-expand label label-gray"
-
-      %span.js-details-content.hide
-        = commit_branches_links(@project, @branches) if @branches.any?
-        = commit_tags_links(@project, @tags) if @tags.any?
+- if @branches.any? || @tags.any? || @tags_limit_exceeded
+  %span
+    = link_to "…", "#", class: "js-details-expand label label-gray"
+    %span.js-details-content.hide
+      = commit_branches_links(@project, @branches)
+      - if @tags_limit_exceeded
+        = render 'limit_exceeded_message', objects: :tag, label_for_message: "tags"
+      - else
+        = commit_tags_links(@project, @tags)
diff --git a/app/views/projects/commits/_commit.html.haml b/app/views/projects/commits/_commit.html.haml
index a16ffb433a5..a66177f20e9 100644
--- a/app/views/projects/commits/_commit.html.haml
+++ b/app/views/projects/commits/_commit.html.haml
@@ -1,11 +1,6 @@
 - ref = local_assigns.fetch(:ref)
-- if @note_counts
-  - note_count = @note_counts.fetch(commit.id, 0)
-- else
-  - notes = commit.notes
-  - note_count = notes.user.count
 
-- cache_key = [project.full_path, commit.id, current_application_settings, note_count, @path.presence, current_controller?(:commits), I18n.locale]
+- cache_key = [project.full_path, commit.id, current_application_settings, @path.presence, current_controller?(:commits), I18n.locale]
 - cache_key.push(commit.status(ref)) if commit.status(ref)
 
 = cache(cache_key, expires_in: 1.day) do
diff --git a/app/views/projects/issues/_nav_btns.html.haml b/app/views/projects/issues/_nav_btns.html.haml
index 13809da6523..0d39edb7bfd 100644
--- a/app/views/projects/issues/_nav_btns.html.haml
+++ b/app/views/projects/issues/_nav_btns.html.haml
@@ -3,8 +3,8 @@
 - if @can_bulk_update
   = button_tag "Edit issues", class: "btn btn-default append-right-10 js-bulk-update-toggle"
 = link_to "New issue", new_project_issue_path(@project,
-                                              issue: { assignee_id: issues_finder.assignee.try(:id),
-                                                       milestone_id: issues_finder.milestones.first.try(:id) }),
+                                              issue: { assignee_id: finder.assignee.try(:id),
+                                                       milestone_id: finder.milestones.first.try(:id) }),
                                               class: "btn btn-new",
                                               title: "New issue",
                                               id: "new_issue_link"
diff --git a/app/views/projects/issues/_new_branch.html.haml b/app/views/projects/issues/_new_branch.html.haml
index e1b4a49850a..4f78102be0c 100644
--- a/app/views/projects/issues/_new_branch.html.haml
+++ b/app/views/projects/issues/_new_branch.html.haml
@@ -1,3 +1,7 @@
+- can_create_merge_request = can?(current_user, :create_merge_request, @project)
+- data_action = can_create_merge_request ? 'create-mr' : 'create-branch'
+- value = can_create_merge_request ? 'Create a merge request' : 'Create a branch'
+
 - if can?(current_user, :push_code, @project)
   .create-mr-dropdown-wrap{ data: { can_create_path: can_create_branch_project_issue_path(@project, @issue), create_mr_path: create_merge_request_project_issue_path(@project, @issue), create_branch_path: project_branches_path(@project, branch_name: @issue.to_branch_name, issue_iid: @issue.iid) } }
     .btn-group.unavailable
@@ -6,20 +10,21 @@
         %span.text
           Checking branch availability…
     .btn-group.available.hide
-      %input.btn.js-create-merge-request.btn-inverted.btn-success{ type: 'button', value: 'Create a merge request', data: { action: 'create-mr' } }
+      %input.btn.js-create-merge-request.btn-inverted.btn-success{ type: 'button', value: value, data: { action: data_action } }
       %button.btn.btn-inverted.dropdown-toggle.btn-inverted.btn-success.js-dropdown-toggle{ type: 'button', data: { 'dropdown-trigger' => '#create-merge-request-dropdown' } }
         = icon('caret-down')
       %ul#create-merge-request-dropdown.dropdown-menu.dropdown-menu-align-right{ data: { dropdown: true } }
-        %li.droplab-item-selected{ role: 'button', data: { value: 'create-mr', 'text' => 'Create a merge request' } }
-          .menu-item
-            .icon-container
-              = icon('check')
-            .description
-              %strong Create a merge request
-              %span
-                Creates a merge request named after this issue, with source branch created from '#{@project.default_branch}'.
-        %li.divider.droplab-item-ignore
-        %li{ role: 'button', data: {  value: 'create-branch', 'text' => 'Create a branch' } }
+        - if can_create_merge_request
+          %li.droplab-item-selected{ role: 'button', data: { value: 'create-mr', 'text' => 'Create a merge request' } }
+            .menu-item
+              .icon-container
+                = icon('check')
+              .description
+                %strong Create a merge request
+                %span
+                  Creates a merge request named after this issue, with source branch created from '#{@project.default_branch}'.
+          %li.divider.droplab-item-ignore
+        %li{ class: [!can_create_merge_request && 'droplab-item-selected'], role: 'button', data: {  value: 'create-branch', 'text' => 'Create a branch' } }
           .menu-item
             .icon-container
               = icon('check')
diff --git a/app/views/projects/issues/show.html.haml b/app/views/projects/issues/show.html.haml
index b9fec8af4d7..c64eb506412 100644
--- a/app/views/projects/issues/show.html.haml
+++ b/app/views/projects/issues/show.html.haml
@@ -27,9 +27,9 @@
 
     .issuable-meta
       - if @issue.confidential
-        = icon('eye-slash', class: 'issuable-warning-icon')
+        .issuable-warning-icon.inline= sprite_icon('eye-slash', size: 16, css_class: 'icon')
       - if @issue.discussion_locked?
-        = icon('lock', class: 'issuable-warning-icon')
+        .issuable-warning-icon.inline= sprite_icon('lock', size: 16, css_class: 'icon')
       = issuable_meta(@issue, @project, "Issue")
 
   .issuable-actions.js-issuable-actions
diff --git a/app/views/projects/jobs/show.html.haml b/app/views/projects/jobs/show.html.haml
index ce0e3872240..2abd2c9e652 100644
--- a/app/views/projects/jobs/show.html.haml
+++ b/app/views/projects/jobs/show.html.haml
@@ -71,7 +71,7 @@
                     class: 'js-raw-link-controller has-tooltip controllers-buttons' do
               = icon('file-text-o')
 
-          - if can?(current_user, :update_build, @project) && @build.erasable?
+          - if @build.erasable? && can?(current_user, :erase_build, @build)
             = link_to erase_project_job_path(@project, @build),
                       method: :post,
                       data: { confirm: 'Are you sure you want to erase this build?', placement: 'top', container: 'body' },
diff --git a/app/views/projects/merge_requests/_mr_title.html.haml b/app/views/projects/merge_requests/_mr_title.html.haml
index 72d5c4961ec..75b3db7e505 100644
--- a/app/views/projects/merge_requests/_mr_title.html.haml
+++ b/app/views/projects/merge_requests/_mr_title.html.haml
@@ -16,7 +16,7 @@
 
     .issuable-meta
       - if @merge_request.discussion_locked?
-        = icon('lock', class: 'issuable-warning-icon')
+        .issuable-warning-icon.inline= sprite_icon('lock', size: 16, css_class: 'icon')
       = issuable_meta(@merge_request, @project, "Merge request")
 
   .issuable-actions.js-issuable-actions
diff --git a/app/views/projects/pipelines/index.html.haml b/app/views/projects/pipelines/index.html.haml
index f8627a3818b..b2e71cff6ce 100644
--- a/app/views/projects/pipelines/index.html.haml
+++ b/app/views/projects/pipelines/index.html.haml
@@ -9,12 +9,6 @@
     "error-state-svg-path" => image_path('illustrations/pipelines_failed.svg'),
     "new-pipeline-path" => new_project_pipeline_path(@project),
     "can-create-pipeline" => can?(current_user, :create_pipeline, @project).to_s,
-    "all-path" =>  project_pipelines_path(@project),
-    "pending-path" => project_pipelines_path(@project, scope: :pending),
-    "running-path" => project_pipelines_path(@project, scope: :running),
-    "finished-path" => project_pipelines_path(@project, scope: :finished),
-    "branches-path" => project_pipelines_path(@project, scope: :branches),
-    "tags-path" => project_pipelines_path(@project, scope: :tags),
     "has-ci" => @repository.gitlab_ci_yml,
     "ci-lint-path" => ci_lint_path } }
 
diff --git a/app/views/projects/protected_tags/_create_protected_tag.html.haml b/app/views/projects/protected_tags/_create_protected_tag.html.haml
index ea91e8af70e..f53b81cada6 100644
--- a/app/views/projects/protected_tags/_create_protected_tag.html.haml
+++ b/app/views/projects/protected_tags/_create_protected_tag.html.haml
@@ -2,7 +2,7 @@
   .create_access_levels-container
     = dropdown_tag('Select',
                    options: { toggle_class: 'js-allowed-to-create wide',
-                   dropdown_class: 'dropdown-menu-selectable',
+                   dropdown_class: 'dropdown-menu-selectable capitalize-header',
                    data: { field_name: 'protected_tag[create_access_levels_attributes][0][access_level]', input_id: 'create_access_levels_attributes' }})
 
 = render 'projects/protected_tags/shared/create_protected_tag'
diff --git a/app/views/projects/services/prometheus/_show.html.haml b/app/views/projects/services/prometheus/_show.html.haml
index d8e11500964..b0cb5ce5e8f 100644
--- a/app/views/projects/services/prometheus/_show.html.haml
+++ b/app/views/projects/services/prometheus/_show.html.haml
@@ -4,42 +4,39 @@
 .row.prepend-top-default.append-bottom-default.prometheus-metrics-monitoring.js-prometheus-metrics-monitoring
   .col-lg-3
     %h4.prepend-top-0
-      Metrics
+      = s_('PrometheusService|Metrics')
     %p
-      Metrics are automatically configured and monitored
-      based on a library of metrics from popular exporters.
-      = link_to 'More information', help_page_path('user/project/integrations/prometheus')
+      = s_('PrometheusService|Metrics are automatically configured and monitored based on a library of metrics from popular exporters.')
+      = link_to s_('PrometheusService|More information'), help_page_path('user/project/integrations/prometheus')
 
   .col-lg-9
     .panel.panel-default.js-panel-monitored-metrics{ data: { "active-metrics" => "#{project_prometheus_active_metrics_path(@project, :json)}" } }
       .panel-heading
         %h3.panel-title
-          Monitored
+          = s_('PrometheusService|Monitored')
           %span.badge.js-monitored-count 0
       .panel-body
         .loading-metrics.text-center.js-loading-metrics
           = icon('spinner spin 3x', class: 'metrics-load-spinner')
-          %p Finding and configuring metrics...
+          %p
+            = s_('PrometheusService|Finding and configuring metrics...')
         .empty-metrics.text-center.hidden.js-empty-metrics
           = custom_icon('icon_empty_metrics')
-          %p No metrics are being monitored. To start monitoring, deploy to an environment.
-          = link_to project_environments_path(@project), title: 'View environments', class: 'btn btn-success' do
-            View environments
+          %p
+            = s_('PrometheusService|No metrics are being monitored. To start monitoring, deploy to an environment.')
+          = link_to s_('PrometheusService|View environments'), project_environments_path(@project), class: 'btn btn-success'
         %ul.list-unstyled.metrics-list.hidden.js-metrics-list
 
     .panel.panel-default.hidden.js-panel-missing-env-vars
       .panel-heading
         %h3.panel-title
           = icon('caret-right lg fw', class: 'panel-toggle js-panel-toggle', 'aria-label' => 'Toggle panel')
-          Missing environment variable
+          = s_('PrometheusService|Missing environment variable')
           %span.badge.js-env-var-count 0
       .panel-body.hidden
         .flash-container
           .flash-notice
             .flash-text
-              To set up automatic monitoring, add the environment variable
-              %code
-                $CI_ENVIRONMENT_SLUG
-              to exporter&rsquo;s queries.
-              = link_to 'More information', help_page_path('user/project/integrations/prometheus', anchor: 'metrics-and-labels')
+              = s_("PrometheusService|To set up automatic monitoring, add the environment variable %{variable} to exporter's queries." % { variable: "<code>$CI_ENVIRONMENT_SLUG</code>" }).html_safe
+              = link_to s_('PrometheusService|More information'), help_page_path('user/project/integrations/prometheus', anchor: 'metrics-and-labels')
         %ul.list-unstyled.metrics-list.js-missing-var-metrics-list
diff --git a/app/views/projects/tags/_tag.html.haml b/app/views/projects/tags/_tag.html.haml
index 1927216e191..467f19b4c56 100644
--- a/app/views/projects/tags/_tag.html.haml
+++ b/app/views/projects/tags/_tag.html.haml
@@ -7,7 +7,7 @@
 
     - if protected_tag?(@project, tag)
       %span.label.label-success.prepend-left-4
-        protected
+        = s_('TagsPage|protected')
 
     - if tag.message.present?
       &nbsp;
@@ -18,7 +18,7 @@
         = render 'projects/branches/commit', commit: commit, project: @project
     - else
       %p
-        Cant find HEAD commit for this tag
+        = s_("TagsPage|Can't find HEAD commit for this tag")
     - if release && release.description.present?
       .description.prepend-top-default
         .wiki
@@ -28,9 +28,9 @@
     = render 'projects/buttons/download', project: @project, ref: tag.name, pipeline: @tags_pipelines[tag.name]
 
     - if can?(current_user, :push_code, @project)
-      = link_to edit_project_tag_release_path(@project, tag.name), class: 'btn has-tooltip', title: "Edit release notes", data: { container: "body" } do
+      = link_to edit_project_tag_release_path(@project, tag.name), class: 'btn has-tooltip', title: s_('TagsPage|Edit release notes'), data: { container: "body" } do
         = icon("pencil")
 
     - if can?(current_user, :admin_project, @project)
-      = link_to project_tag_path(@project, tag.name), class: "btn btn-remove remove-row has-tooltip #{protected_tag?(@project, tag) ? 'disabled' : ''}", title: "Delete tag", method: :delete, data: { confirm: "Deleting the '#{tag.name}' tag cannot be undone. Are you sure?", container: 'body' }, remote: true do
+      = link_to project_tag_path(@project, tag.name), class: "btn btn-remove remove-row has-tooltip #{protected_tag?(@project, tag) ? 'disabled' : ''}", title: s_('TagsPage|Delete tag'), method: :delete, data: { confirm: s_('TagsPage|Deleting the %{tag_name} tag cannot be undone. Are you sure?') % { tag_name: tag.name }, container: 'body' }, remote: true do
         = icon("trash-o")
diff --git a/app/views/projects/tags/index.html.haml b/app/views/projects/tags/index.html.haml
index 27d58d4c0e8..fd3b8c01b83 100644
--- a/app/views/projects/tags/index.html.haml
+++ b/app/views/projects/tags/index.html.haml
@@ -1,16 +1,16 @@
 - @no_container = true
 - @sort ||= sort_value_recently_updated
-- page_title "Tags"
+- page_title _('TagsPage|Tags')
 - add_to_breadcrumbs("Repository", project_tree_path(@project))
 
 .flex-list{ class: container_class }
   .top-area.adjust
     .nav-text.row-main-content
-      Tags give the ability to mark specific points in history as being important
+      = s_('TagsPage|Tags give the ability to mark specific points in history as being important')
 
     .nav-controls.row-fixed-content
       = form_tag(filter_tags_path, method: :get) do
-        = search_field_tag :search, params[:search], { placeholder: 'Filter by tag name', id: 'tag-search', class: 'form-control search-text-input input-short', spellcheck: false }
+        = search_field_tag :search, params[:search], { placeholder: s_('TagsPage|Filter by tag name'), id: 'tag-search', class: 'form-control search-text-input input-short', spellcheck: false }
 
       .dropdown
         %button.dropdown-toggle{ type: 'button', data: { toggle: 'dropdown'} }
@@ -19,13 +19,13 @@
           = icon('chevron-down')
         %ul.dropdown-menu.dropdown-menu-align-right.dropdown-menu-selectable
           %li.dropdown-header
-            Sort by
+            = s_('TagsPage|Sort by')
           - tags_sort_options_hash.each do |value, title|
             %li
               = link_to title, filter_tags_path(sort: value), class: ("is-active" if @sort == value)
       - if can?(current_user, :push_code, @project)
         = link_to new_project_tag_path(@project), class: 'btn btn-create new-tag-btn' do
-          New tag
+          = s_('TagsPage|New tag')
 
   .tags
     - if @tags.any?
@@ -36,9 +36,9 @@
 
     - else
       .nothing-here-block
-        Repository has no tags yet.
+        = s_('TagsPage|Repository has no tags yet.')
         %br
         %small
-          Use git tag command to add a new one:
+          = s_('TagsPage|Use git tag command to add a new one:')
           %br
           %span.monospace git tag -a v1.4 -m 'version 1.4'
diff --git a/app/views/projects/tags/new.html.haml b/app/views/projects/tags/new.html.haml
index 521b4d927bc..031efa903c5 100644
--- a/app/views/projects/tags/new.html.haml
+++ b/app/views/projects/tags/new.html.haml
@@ -1,4 +1,4 @@
-- page_title "New Tag"
+- page_title s_('TagsPage|New Tag')
 - default_ref = params[:ref] || @project.default_branch
 
 - if @error
@@ -7,7 +7,7 @@
     = @error
 
 %h3.page-title
-  New Tag
+  = s_('TagsPage|New Tag')
 %hr
 
 = form_tag namespace_project_tags_path, method: :post, id: "new-tag-form", class: "form-horizontal common-note-form tag-form js-quick-submit js-requires-input" do
@@ -23,21 +23,24 @@
         = button_tag type: 'button', title: default_ref, class: 'dropdown-menu-toggle wide form-control js-branch-select', required: true, data: { toggle: 'dropdown', selected: default_ref, field_name: 'ref' } do
           .text-left.dropdown-toggle-text= default_ref
         = render 'shared/ref_dropdown', dropdown_class: 'wide'
-      .help-block Existing branch name, tag, or commit SHA
+      .help-block
+        = s_('TagsPage|Existing branch name, tag, or commit SHA')
   .form-group
     = label_tag :message, nil, class: 'control-label'
     .col-sm-10
       = text_area_tag :message, @message, required: false, tabindex: 3, class: 'form-control', rows: 5
-      .help-block Optionally, add a message to the tag.
+      .help-block
+        = s_('TagsPage|Optionally, add a message to the tag.')
   %hr
   .form-group
-    = label_tag :release_description, 'Release notes', class: 'control-label'
+    = label_tag :release_description, s_('TagsPage|Release notes'), class: 'control-label'
     .col-sm-10
       = render layout: 'projects/md_preview', locals: { url: preview_markdown_path(@project), referenced_users: true } do
-        = render 'projects/zen', attr: :release_description, classes: 'note-textarea', placeholder: "Write your release notes or drag files here...", current_text: @release_description
+        = render 'projects/zen', attr: :release_description, classes: 'note-textarea', placeholder: s_('TagsPage|Write your release notes or drag files here...'), current_text: @release_description
         = render 'shared/notes/hints'
-      .help-block Optionally, add release notes to the tag. They will be stored in the GitLab database and displayed on the tags page.
+      .help-block
+        = s_('TagsPage|Optionally, add release notes to the tag. They will be stored in the GitLab database and displayed on the tags page.')
   .form-actions
-    = button_tag 'Create tag', class: 'btn btn-create', tabindex: 3
-    = link_to 'Cancel', project_tags_path(@project), class: 'btn btn-cancel'
+    = button_tag s_('TagsPage|Create tag'), class: 'btn btn-create', tabindex: 3
+    = link_to s_('TagsPage|Cancel'), project_tags_path(@project), class: 'btn btn-cancel'
 %script#availableRefs{ type: "application/json" }= @project.repository.ref_names.to_json.html_safe
diff --git a/app/views/projects/tags/show.html.haml b/app/views/projects/tags/show.html.haml
index 43aa2b27af6..dfe2c37ed8e 100644
--- a/app/views/projects/tags/show.html.haml
+++ b/app/views/projects/tags/show.html.haml
@@ -1,7 +1,7 @@
 - @no_container = true
-- add_to_breadcrumbs "Tags", project_tags_path(@project)
+- add_to_breadcrumbs s_('TagsPage|Tags'), project_tags_path(@project)
 - breadcrumb_title @tag.name
-- page_title @tag.name, "Tags"
+- page_title @tag.name, s_('TagsPage|Tags')
 
 %div{ class: container_class }
   .top-area.multi-line
@@ -12,25 +12,25 @@
           = @tag.name
         - if protected_tag?(@project, @tag)
           %span.label.label-success
-            protected
+            = s_('TagsPage|protected')
       - if @commit
         = render 'projects/branches/commit', commit: @commit, project: @project
       - else
-        Cant find HEAD commit for this tag
+        = s_("TagsPage|Can't find HEAD commit for this tag")
 
     .nav-controls.controls-flex
       - if can?(current_user, :push_code, @project)
-        = link_to edit_project_tag_release_path(@project, @tag.name), class: 'btn controls-item has-tooltip', title: 'Edit release notes' do
+        = link_to edit_project_tag_release_path(@project, @tag.name), class: 'btn controls-item has-tooltip', title: s_('TagsPage|Edit release notes') do
           = icon("pencil")
-      = link_to project_tree_path(@project, @tag.name), class: 'btn controls-item has-tooltip', title: 'Browse files' do
+      = link_to project_tree_path(@project, @tag.name), class: 'btn controls-item has-tooltip', title: s_('TagsPage|Browse files') do
         = icon('files-o')
-      = link_to project_commits_path(@project, @tag.name), class: 'btn controls-item has-tooltip', title: 'Browse commits' do
+      = link_to project_commits_path(@project, @tag.name), class: 'btn controls-item has-tooltip', title: s_('TagsPage|Browse commits') do
         = icon('history')
       .btn-container.controls-item
         = render 'projects/buttons/download', project: @project, ref: @tag.name
       - if can?(current_user, :admin_project, @project)
         .btn-container.controls-item-full
-          = link_to project_tag_path(@project, @tag.name), class: "btn btn-remove remove-row has-tooltip #{protected_tag?(@project, @tag) ? 'disabled' : ''}", title: "Delete tag", method: :delete, data: { confirm: "Deleting the '#{@tag.name}' tag cannot be undone. Are you sure?" } do
+          = link_to project_tag_path(@project, @tag.name), class: "btn btn-remove remove-row has-tooltip #{protected_tag?(@project, @tag) ? 'disabled' : ''}", title: s_('TagsPage|Delete tag'), method: :delete, data: { confirm: s_('TagsPage|Deleting the %{tag_name} tag cannot be undone. Are you sure?') % { tag_name: @tag.name } } do
             %i.fa.fa-trash-o
 
     - if @tag.message.present?
@@ -43,4 +43,4 @@
         .wiki
           = markdown_field(@release, :description)
     - else
-      This tag has no release notes.
+      = s_('TagsPage|This tag has no release notes.')
diff --git a/app/views/projects/tree/_truncated_notice_tree_row.html.haml b/app/views/projects/tree/_truncated_notice_tree_row.html.haml
new file mode 100644
index 00000000000..693b641888b
--- /dev/null
+++ b/app/views/projects/tree/_truncated_notice_tree_row.html.haml
@@ -0,0 +1,7 @@
+%tr.tree-truncated-warning
+  %td{ colspan: '3' }
+    = icon('exclamation-triangle fw')
+    %span
+      Too many items to show. To preserve performance only
+      %strong #{number_with_delimiter(limit)} of #{number_with_delimiter(total)}
+      items are displayed.
diff --git a/app/views/shared/_ref_switcher.html.haml b/app/views/shared/_ref_switcher.html.haml
index 6d7c9633913..6356e9f92cb 100644
--- a/app/views/shared/_ref_switcher.html.haml
+++ b/app/views/shared/_ref_switcher.html.haml
@@ -7,7 +7,7 @@
   - @options && @options.each do |key, value|
     = hidden_field_tag key, value, id: nil
   .dropdown
-    = dropdown_toggle dropdown_toggle_text, { toggle: "dropdown", selected: dropdown_toggle_text, ref: @ref, refs_url: refs_project_path(@project), field_name: 'ref', submit_form_on_click: true, visit: true }, { toggle_class: "js-project-refs-dropdown" }
+    = dropdown_toggle dropdown_toggle_text, { toggle: "dropdown", selected: dropdown_toggle_text, ref: @ref, refs_url: refs_project_path(@project, sort: 'updated_desc'), field_name: 'ref', submit_form_on_click: true, visit: true }, { toggle_class: "js-project-refs-dropdown" }
     .dropdown-menu.dropdown-menu-selectable.git-revision-dropdown.dropdown-menu-paging{ class: ("dropdown-menu-align-right" if local_assigns[:align_right]) }
       .dropdown-page-one
         = dropdown_title _("Switch branch/tag")
diff --git a/app/views/shared/icons/_add_new_project.svg b/app/views/shared/icons/_add_new_project.svg
index 3c1e15453df..cf8762944ca 100644
--- a/app/views/shared/icons/_add_new_project.svg
+++ b/app/views/shared/icons/_add_new_project.svg
@@ -1 +1 @@
-<svg xmlns="http://www.w3.org/2000/svg" width="78" height="82" viewBox="0 0 78 82"><g fill="none" fill-rule="evenodd"><path fill="#F9F9F9" d="M2.12 42c-.08.99-.12 1.99-.12 3 0 20.435 16.565 37 37 37s37-16.565 37-37c0-1.01-.04-2.01-.12-3C74.353 61.032 58.425 76 39 76 19.575 76 3.647 61.032 2.12 42z"/><path fill="#EEE" fill-rule="nonzero" d="M39 78C17.46 78 0 60.54 0 39S17.46 0 39 0s39 17.46 39 39-17.46 39-39 39zm0-4c19.33 0 35-15.67 35-35S58.33 4 39 4 4 19.67 4 39s15.67 35 35 35z"/><path fill="#FEE1D3" fill-rule="nonzero" d="M30 24a4 4 0 0 0-4 4v22a4 4 0 0 0 4 4h18a4 4 0 0 0 4-4V28a4 4 0 0 0-4-4H30zm0-4h18a8 8 0 0 1 8 8v22a8 8 0 0 1-8 8H30a8 8 0 0 1-8-8V28a8 8 0 0 1 8-8z"/><path fill="#FC6D26" d="M33 30h8a2 2 0 1 1 0 4h-8a2 2 0 1 1 0-4zm0 7h12a2 2 0 1 1 0 4H33a2 2 0 1 1 0-4zm0 7h12a2 2 0 1 1 0 4H33a2 2 0 1 1 0-4z"/></g></svg>
\ No newline at end of file
+<svg xmlns="http://www.w3.org/2000/svg" width="78" height="82" viewBox="0 0 78 82"><g fill="none" fill-rule="evenodd"><path fill="#F9F9F9" d="M2.12 42c-.08.99-.12 1.99-.12 3 0 20.435 16.565 37 37 37s37-16.565 37-37c0-1.01-.04-2.01-.12-3C74.353 61.032 58.425 76 39 76S3.647 61.032 2.12 42z"/><path fill="#EEE" fill-rule="nonzero" d="M39 78C17.46 78 0 60.54 0 39S17.46 0 39 0s39 17.46 39 39-17.46 39-39 39zm0-4c19.33 0 35-15.67 35-35S58.33 4 39 4 4 19.67 4 39s15.67 35 35 35z"/><path fill="#E1DBF2" fill-rule="nonzero" d="M30 24c-2.21 0-4 1.79-4 4v22c0 2.21 1.79 4 4 4h18c2.21 0 4-1.79 4-4V28c0-2.21-1.79-4-4-4H30zm0-4h18c4.418 0 8 3.582 8 8v22c0 4.418-3.582 8-8 8H30c-4.418 0-8-3.582-8-8V28c0-4.418 3.582-8 8-8z"/><path fill="#6B4FBB" d="M33 30h8c1.105 0 2 .895 2 2s-.895 2-2 2h-8c-1.105 0-2-.895-2-2s.895-2 2-2zm0 7h12c1.105 0 2 .895 2 2s-.895 2-2 2H33c-1.105 0-2-.895-2-2s.895-2 2-2zm0 7h12c1.105 0 2 .895 2 2s-.895 2-2 2H33c-1.105 0-2-.895-2-2s.895-2 2-2z"/></g></svg>
diff --git a/app/views/shared/icons/_icon_autodevops.svg b/app/views/shared/icons/_icon_autodevops.svg
index 423ca6d760d..7e47c084bde 100644
--- a/app/views/shared/icons/_icon_autodevops.svg
+++ b/app/views/shared/icons/_icon_autodevops.svg
@@ -29,7 +29,7 @@
     </g>
     <g fill-rule="nonzero" transform="rotate(15 -315.035 277.714)">
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diff --git a/app/views/shared/icons/_icon_hourglass.svg b/app/views/shared/icons/_icon_hourglass.svg
new file mode 100644
index 00000000000..fe7e497ce13
--- /dev/null
+++ b/app/views/shared/icons/_icon_hourglass.svg
@@ -0,0 +1 @@
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diff --git a/app/views/shared/icons/_lightbulb.svg b/app/views/shared/icons/_lightbulb.svg
new file mode 100644
index 00000000000..2fcc4c65f99
--- /dev/null
+++ b/app/views/shared/icons/_lightbulb.svg
@@ -0,0 +1 @@
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diff --git a/app/views/shared/issuable/_filter.html.haml b/app/views/shared/issuable/_filter.html.haml
index d3f0aa2d339..8442d7ff4a2 100644
--- a/app/views/shared/issuable/_filter.html.haml
+++ b/app/views/shared/issuable/_filter.html.haml
@@ -1,4 +1,3 @@
-- finder = controller.controller_name == 'issues' ? issues_finder : merge_requests_finder
 - boards_page = controller.controller_name == 'boards'
 
 .issues-filters
diff --git a/app/views/shared/members/_member.html.haml b/app/views/shared/members/_member.html.haml
index 951b4dd7b36..2c27dd638a7 100644
--- a/app/views/shared/members/_member.html.haml
+++ b/app/views/shared/members/_member.html.haml
@@ -104,7 +104,6 @@
                       class: 'btn btn-remove prepend-left-10'
           - else
             = link_to member,
-                      remote: true,
                       method: :delete,
                       data: { confirm: remove_member_message(member) },
                       class: 'btn btn-remove prepend-left-10',
diff --git a/app/views/shared/milestones/_sidebar.html.haml b/app/views/shared/milestones/_sidebar.html.haml
index f03e0ab154c..4f51455c26e 100644
--- a/app/views/shared/milestones/_sidebar.html.haml
+++ b/app/views/shared/milestones/_sidebar.html.haml
@@ -85,6 +85,22 @@
               Closed:
               = milestone.issues_visible_to_user(current_user).closed.count
 
+    .block.time_spent
+      .sidebar-collapsed-icon
+        = custom_icon('icon_hourglass')
+        %span.collapsed-milestone-total-time-spent
+        - if milestone.human_total_issue_time_spent
+          = milestone.human_total_issue_time_spent
+        - else
+          = _("None")
+      .title.hide-collapsed
+        = _("Total issue time spent")
+      .value.hide-collapsed
+        - if milestone.human_total_issue_time_spent
+          %span.bold= milestone.human_total_issue_time_spent
+        - else
+          %span.no-value= _("No time spent")
+
     .block.merge-requests
       .sidebar-collapsed-icon
         %strong
diff --git a/app/views/shared/tokens/_scopes_form.html.haml b/app/views/shared/tokens/_scopes_form.html.haml
index 8bbaf431536..ae437dd16d6 100644
--- a/app/views/shared/tokens/_scopes_form.html.haml
+++ b/app/views/shared/tokens/_scopes_form.html.haml
@@ -7,3 +7,4 @@
     = check_box_tag "#{prefix}[scopes][]", scope, token.scopes.include?(scope), id: "#{prefix}_scopes_#{scope}"
     = label_tag ("#{prefix}_scopes_#{scope}"), scope
     %span= t(scope, scope: [:doorkeeper, :scopes])
+    .scope-description= t scope, scope: [:doorkeeper, :scope_desc]
diff --git a/app/workers/cluster_install_app_worker.rb b/app/workers/cluster_install_app_worker.rb
new file mode 100644
index 00000000000..899aed904e4
--- /dev/null
+++ b/app/workers/cluster_install_app_worker.rb
@@ -0,0 +1,11 @@
+class ClusterInstallAppWorker
+  include Sidekiq::Worker
+  include ClusterQueue
+  include ClusterApplications
+
+  def perform(app_name, app_id)
+    find_application(app_name, app_id) do |app|
+      Clusters::Applications::InstallService.new(app).execute
+    end
+  end
+end
diff --git a/app/workers/cluster_provision_worker.rb b/app/workers/cluster_provision_worker.rb
index 63300b58a25..b01f9708424 100644
--- a/app/workers/cluster_provision_worker.rb
+++ b/app/workers/cluster_provision_worker.rb
@@ -3,8 +3,10 @@ class ClusterProvisionWorker
   include ClusterQueue
 
   def perform(cluster_id)
-    Gcp::Cluster.find_by_id(cluster_id).try do |cluster|
-      Ci::ProvisionClusterService.new.execute(cluster)
+    Clusters::Cluster.find_by_id(cluster_id).try do |cluster|
+      cluster.provider.try do |provider|
+        Clusters::Gcp::ProvisionService.new.execute(provider) if cluster.gcp?
+      end
     end
   end
 end
diff --git a/app/workers/cluster_wait_for_app_installation_worker.rb b/app/workers/cluster_wait_for_app_installation_worker.rb
new file mode 100644
index 00000000000..4bb8c293e5d
--- /dev/null
+++ b/app/workers/cluster_wait_for_app_installation_worker.rb
@@ -0,0 +1,14 @@
+class ClusterWaitForAppInstallationWorker
+  include Sidekiq::Worker
+  include ClusterQueue
+  include ClusterApplications
+
+  INTERVAL = 10.seconds
+  TIMEOUT = 20.minutes
+
+  def perform(app_name, app_id)
+    find_application(app_name, app_id) do |app|
+      Clusters::Applications::CheckInstallationProgressService.new(app).execute
+    end
+  end
+end
diff --git a/app/workers/concerns/cluster_applications.rb b/app/workers/concerns/cluster_applications.rb
new file mode 100644
index 00000000000..24ecaa0b52f
--- /dev/null
+++ b/app/workers/concerns/cluster_applications.rb
@@ -0,0 +1,9 @@
+module ClusterApplications
+  extend ActiveSupport::Concern
+
+  included do
+    def find_application(app_name, id, &blk)
+      Clusters::Cluster::APPLICATIONS[app_name].find(id).try(&blk)
+    end
+  end
+end
diff --git a/app/workers/concerns/gitlab/github_import/notify_upon_death.rb b/app/workers/concerns/gitlab/github_import/notify_upon_death.rb
new file mode 100644
index 00000000000..3d7120665b6
--- /dev/null
+++ b/app/workers/concerns/gitlab/github_import/notify_upon_death.rb
@@ -0,0 +1,31 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    # NotifyUponDeath can be included into a GitHub worker class if it should
+    # notify any JobWaiter instances upon being moved to the Sidekiq dead queue.
+    #
+    # Note that this will only notify the waiter upon graceful termination, a
+    # SIGKILL will still result in the waiter _not_ being notified.
+    #
+    # Workers including this module must have jobs passed where the last
+    # argument is the key to notify, as a String.
+    module NotifyUponDeath
+      extend ActiveSupport::Concern
+
+      included do
+        # If a job is being exhausted we still want to notify the
+        # AdvanceStageWorker. This prevents the entire import from getting stuck
+        # just because 1 job threw too many errors.
+        sidekiq_retries_exhausted do |job|
+          args = job['args']
+          jid = job['jid']
+
+          if args.length == 3 && (key = args.last) && key.is_a?(String)
+            JobWaiter.notify(key, jid)
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/app/workers/concerns/gitlab/github_import/object_importer.rb b/app/workers/concerns/gitlab/github_import/object_importer.rb
new file mode 100644
index 00000000000..67e36c811de
--- /dev/null
+++ b/app/workers/concerns/gitlab/github_import/object_importer.rb
@@ -0,0 +1,54 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    # ObjectImporter defines the base behaviour for every Sidekiq worker that
+    # imports a single resource such as a note or pull request.
+    module ObjectImporter
+      extend ActiveSupport::Concern
+
+      included do
+        include Sidekiq::Worker
+        include GithubImport::Queue
+        include ReschedulingMethods
+        include NotifyUponDeath
+      end
+
+      # project - An instance of `Project` to import the data into.
+      # client - An instance of `Gitlab::GithubImport::Client`
+      # hash - A Hash containing the details of the object to import.
+      def import(project, client, hash)
+        object = representation_class.from_json_hash(hash)
+
+        importer_class.new(object, project, client).execute
+
+        counter.increment(project: project.path_with_namespace)
+      end
+
+      def counter
+        @counter ||= Gitlab::Metrics.counter(counter_name, counter_description)
+      end
+
+      # Returns the representation class to use for the object. This class must
+      # define the class method `from_json_hash`.
+      def representation_class
+        raise NotImplementedError
+      end
+
+      # Returns the class to use for importing the object.
+      def importer_class
+        raise NotImplementedError
+      end
+
+      # Returns the name (as a Symbol) of the Prometheus counter.
+      def counter_name
+        raise NotImplementedError
+      end
+
+      # Returns the description (as a String) of the Prometheus counter.
+      def counter_description
+        raise NotImplementedError
+      end
+    end
+  end
+end
diff --git a/app/workers/concerns/gitlab/github_import/queue.rb b/app/workers/concerns/gitlab/github_import/queue.rb
new file mode 100644
index 00000000000..a2bee361b86
--- /dev/null
+++ b/app/workers/concerns/gitlab/github_import/queue.rb
@@ -0,0 +1,16 @@
+module Gitlab
+  module GithubImport
+    module Queue
+      extend ActiveSupport::Concern
+
+      included do
+        # If a job produces an error it may block a stage from advancing
+        # forever. To prevent this from happening we prevent jobs from going to
+        # the dead queue. This does mean some resources may not be imported, but
+        # this is better than a project being stuck in the "import" state
+        # forever.
+        sidekiq_options queue: 'github_importer', dead: false, retry: 5
+      end
+    end
+  end
+end
diff --git a/app/workers/concerns/gitlab/github_import/rescheduling_methods.rb b/app/workers/concerns/gitlab/github_import/rescheduling_methods.rb
new file mode 100644
index 00000000000..692ca6b7f42
--- /dev/null
+++ b/app/workers/concerns/gitlab/github_import/rescheduling_methods.rb
@@ -0,0 +1,40 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    # Module that provides methods shared by the various workers used for
+    # importing GitHub projects.
+    module ReschedulingMethods
+      # project_id - The ID of the GitLab project to import the note into.
+      # hash - A Hash containing the details of the GitHub object to imoprt.
+      # notify_key - The Redis key to notify upon completion, if any.
+      def perform(project_id, hash, notify_key = nil)
+        project = Project.find_by(id: project_id)
+
+        return notify_waiter(notify_key) unless project
+
+        client = GithubImport.new_client_for(project, parallel: true)
+
+        if try_import(project, client, hash)
+          notify_waiter(notify_key)
+        else
+          # In the event of hitting the rate limit we want to reschedule the job
+          # so its retried after our rate limit has been reset.
+          self.class
+            .perform_in(client.rate_limit_resets_in, project.id, hash, notify_key)
+        end
+      end
+
+      def try_import(*args)
+        import(*args)
+        true
+      rescue RateLimitError
+        false
+      end
+
+      def notify_waiter(key = nil)
+        JobWaiter.notify(key, jid) if key
+      end
+    end
+  end
+end
diff --git a/app/workers/concerns/gitlab/github_import/stage_methods.rb b/app/workers/concerns/gitlab/github_import/stage_methods.rb
new file mode 100644
index 00000000000..147c8c8d683
--- /dev/null
+++ b/app/workers/concerns/gitlab/github_import/stage_methods.rb
@@ -0,0 +1,30 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    module StageMethods
+      # project_id - The ID of the GitLab project to import the data into.
+      def perform(project_id)
+        return unless (project = find_project(project_id))
+
+        client = GithubImport.new_client_for(project)
+
+        try_import(client, project)
+      end
+
+      # client - An instance of Gitlab::GithubImport::Client.
+      # project - An instance of Project.
+      def try_import(client, project)
+        import(client, project)
+      rescue RateLimitError
+        self.class.perform_in(client.rate_limit_resets_in, project.id)
+      end
+
+      def find_project(id)
+        # If the project has been marked as failed we want to bail out
+        # automatically.
+        Project.import_started.find_by(id: id)
+      end
+    end
+  end
+end
diff --git a/app/workers/gitlab/github_import/advance_stage_worker.rb b/app/workers/gitlab/github_import/advance_stage_worker.rb
new file mode 100644
index 00000000000..877f88c043f
--- /dev/null
+++ b/app/workers/gitlab/github_import/advance_stage_worker.rb
@@ -0,0 +1,74 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    # AdvanceStageWorker is a worker used by the GitHub importer to wait for a
+    # number of jobs to complete, without blocking a thread. Once all jobs have
+    # been completed this worker will advance the import process to the next
+    # stage.
+    class AdvanceStageWorker
+      include Sidekiq::Worker
+
+      sidekiq_options queue: 'github_importer_advance_stage', dead: false
+
+      INTERVAL = 30.seconds.to_i
+
+      # The number of seconds to wait (while blocking the thread) before
+      # continueing to the next waiter.
+      BLOCKING_WAIT_TIME = 5
+
+      # The known importer stages and their corresponding Sidekiq workers.
+      STAGES = {
+        issues_and_diff_notes: Stage::ImportIssuesAndDiffNotesWorker,
+        notes: Stage::ImportNotesWorker,
+        finish: Stage::FinishImportWorker
+      }.freeze
+
+      # project_id - The ID of the project being imported.
+      # waiters - A Hash mapping Gitlab::JobWaiter keys to the number of
+      #           remaining jobs.
+      # next_stage - The name of the next stage to start when all jobs have been
+      #              completed.
+      def perform(project_id, waiters, next_stage)
+        return unless (project = find_project(project_id))
+
+        new_waiters = wait_for_jobs(waiters)
+
+        if new_waiters.empty?
+          # We refresh the import JID here so workers importing individual
+          # resources (e.g. notes) don't have to do this all the time, reducing
+          # the pressure on Redis. We _only_ do this once all jobs are done so
+          # we don't get stuck forever if one or more jobs failed to notify the
+          # JobWaiter.
+          project.refresh_import_jid_expiration
+
+          STAGES.fetch(next_stage.to_sym).perform_async(project_id)
+        else
+          self.class.perform_in(INTERVAL, project_id, new_waiters, next_stage)
+        end
+      end
+
+      def wait_for_jobs(waiters)
+        waiters.each_with_object({}) do |(key, remaining), new_waiters|
+          waiter = JobWaiter.new(remaining, key)
+
+          # We wait for a brief moment of time so we don't reschedule if we can
+          # complete the work fast enough.
+          waiter.wait(BLOCKING_WAIT_TIME)
+
+          next unless waiter.jobs_remaining.positive?
+
+          new_waiters[waiter.key] = waiter.jobs_remaining
+        end
+      end
+
+      def find_project(id)
+        # We only care about the import JID so we can refresh it. We also only
+        # want the project if it hasn't been marked as failed yet. It's possible
+        # the import gets marked as stuck when jobs of the current stage failed
+        # somehow.
+        Project.select(:import_jid).import_started.find_by(id: id)
+      end
+    end
+  end
+end
diff --git a/app/workers/gitlab/github_import/import_diff_note_worker.rb b/app/workers/gitlab/github_import/import_diff_note_worker.rb
new file mode 100644
index 00000000000..ef2a74c51c5
--- /dev/null
+++ b/app/workers/gitlab/github_import/import_diff_note_worker.rb
@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    class ImportDiffNoteWorker
+      include ObjectImporter
+
+      def representation_class
+        Representation::DiffNote
+      end
+
+      def importer_class
+        Importer::DiffNoteImporter
+      end
+
+      def counter_name
+        :github_importer_imported_diff_notes
+      end
+
+      def counter_description
+        'The number of imported GitHub pull request review comments'
+      end
+    end
+  end
+end
diff --git a/app/workers/gitlab/github_import/import_issue_worker.rb b/app/workers/gitlab/github_import/import_issue_worker.rb
new file mode 100644
index 00000000000..1b081ae5966
--- /dev/null
+++ b/app/workers/gitlab/github_import/import_issue_worker.rb
@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    class ImportIssueWorker
+      include ObjectImporter
+
+      def representation_class
+        Representation::Issue
+      end
+
+      def importer_class
+        Importer::IssueAndLabelLinksImporter
+      end
+
+      def counter_name
+        :github_importer_imported_issues
+      end
+
+      def counter_description
+        'The number of imported GitHub issues'
+      end
+    end
+  end
+end
diff --git a/app/workers/gitlab/github_import/import_note_worker.rb b/app/workers/gitlab/github_import/import_note_worker.rb
new file mode 100644
index 00000000000..d2b4c36a5b9
--- /dev/null
+++ b/app/workers/gitlab/github_import/import_note_worker.rb
@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    class ImportNoteWorker
+      include ObjectImporter
+
+      def representation_class
+        Representation::Note
+      end
+
+      def importer_class
+        Importer::NoteImporter
+      end
+
+      def counter_name
+        :github_importer_imported_notes
+      end
+
+      def counter_description
+        'The number of imported GitHub comments'
+      end
+    end
+  end
+end
diff --git a/app/workers/gitlab/github_import/import_pull_request_worker.rb b/app/workers/gitlab/github_import/import_pull_request_worker.rb
new file mode 100644
index 00000000000..62a6da152a3
--- /dev/null
+++ b/app/workers/gitlab/github_import/import_pull_request_worker.rb
@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    class ImportPullRequestWorker
+      include ObjectImporter
+
+      def representation_class
+        Representation::PullRequest
+      end
+
+      def importer_class
+        Importer::PullRequestImporter
+      end
+
+      def counter_name
+        :github_importer_imported_pull_requests
+      end
+
+      def counter_description
+        'The number of imported GitHub pull requests'
+      end
+    end
+  end
+end
diff --git a/app/workers/gitlab/github_import/refresh_import_jid_worker.rb b/app/workers/gitlab/github_import/refresh_import_jid_worker.rb
new file mode 100644
index 00000000000..45a38927225
--- /dev/null
+++ b/app/workers/gitlab/github_import/refresh_import_jid_worker.rb
@@ -0,0 +1,38 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    class RefreshImportJidWorker
+      include Sidekiq::Worker
+      include GithubImport::Queue
+
+      # The interval to schedule new instances of this job at.
+      INTERVAL = 1.minute.to_i
+
+      def self.perform_in_the_future(*args)
+        perform_in(INTERVAL, *args)
+      end
+
+      # project_id - The ID of the project that is being imported.
+      # check_job_id - The ID of the job for which to check the status.
+      def perform(project_id, check_job_id)
+        return unless (project = find_project(project_id))
+
+        if SidekiqStatus.running?(check_job_id)
+          # As long as the repository is being cloned we want to keep refreshing
+          # the import JID status.
+          project.refresh_import_jid_expiration
+          self.class.perform_in_the_future(project_id, check_job_id)
+        end
+
+        # If the job is no longer running there's nothing else we need to do. If
+        # the clone job completed successfully it will have scheduled the next
+        # stage, if it died there's nothing we can do anyway.
+      end
+
+      def find_project(id)
+        Project.select(:import_jid).import_started.find_by(id: id)
+      end
+    end
+  end
+end
diff --git a/app/workers/gitlab/github_import/stage/finish_import_worker.rb b/app/workers/gitlab/github_import/stage/finish_import_worker.rb
new file mode 100644
index 00000000000..1a09497780a
--- /dev/null
+++ b/app/workers/gitlab/github_import/stage/finish_import_worker.rb
@@ -0,0 +1,43 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    module Stage
+      class FinishImportWorker
+        include Sidekiq::Worker
+        include GithubImport::Queue
+        include StageMethods
+
+        # project - An instance of Project.
+        def import(_, project)
+          project.after_import
+          report_import_time(project)
+        end
+
+        def report_import_time(project)
+          duration = Time.zone.now - project.created_at
+          path = project.path_with_namespace
+
+          histogram.observe({ project: path }, duration)
+          counter.increment
+
+          logger.info("GitHub importer finished for #{path} in #{duration.round(2)} seconds")
+        end
+
+        def histogram
+          @histogram ||= Gitlab::Metrics.histogram(
+            :github_importer_total_duration_seconds,
+            'Total time spent importing GitHub projects, in seconds'
+          )
+        end
+
+        def counter
+          @counter ||= Gitlab::Metrics.counter(
+            :github_importer_imported_projects,
+            'The number of imported GitHub projects'
+          )
+        end
+      end
+    end
+  end
+end
diff --git a/app/workers/gitlab/github_import/stage/import_base_data_worker.rb b/app/workers/gitlab/github_import/stage/import_base_data_worker.rb
new file mode 100644
index 00000000000..f8a3684c6ba
--- /dev/null
+++ b/app/workers/gitlab/github_import/stage/import_base_data_worker.rb
@@ -0,0 +1,33 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    module Stage
+      class ImportBaseDataWorker
+        include Sidekiq::Worker
+        include GithubImport::Queue
+        include StageMethods
+
+        # These importers are fast enough that we can just run them in the same
+        # thread.
+        IMPORTERS = [
+          Importer::LabelsImporter,
+          Importer::MilestonesImporter,
+          Importer::ReleasesImporter
+        ].freeze
+
+        # client - An instance of Gitlab::GithubImport::Client.
+        # project - An instance of Project.
+        def import(client, project)
+          IMPORTERS.each do |klass|
+            klass.new(project, client).execute
+          end
+
+          project.refresh_import_jid_expiration
+
+          ImportPullRequestsWorker.perform_async(project.id)
+        end
+      end
+    end
+  end
+end
diff --git a/app/workers/gitlab/github_import/stage/import_issues_and_diff_notes_worker.rb b/app/workers/gitlab/github_import/stage/import_issues_and_diff_notes_worker.rb
new file mode 100644
index 00000000000..e110b7c1c36
--- /dev/null
+++ b/app/workers/gitlab/github_import/stage/import_issues_and_diff_notes_worker.rb
@@ -0,0 +1,31 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    module Stage
+      class ImportIssuesAndDiffNotesWorker
+        include Sidekiq::Worker
+        include GithubImport::Queue
+        include StageMethods
+
+        # The importers to run in this stage. Issues can't be imported earlier
+        # on as we also use these to enrich pull requests with assigned labels.
+        IMPORTERS = [
+          Importer::IssuesImporter,
+          Importer::DiffNotesImporter
+        ].freeze
+
+        # client - An instance of Gitlab::GithubImport::Client.
+        # project - An instance of Project.
+        def import(client, project)
+          waiters = IMPORTERS.each_with_object({}) do |klass, hash|
+            waiter = klass.new(project, client).execute
+            hash[waiter.key] = waiter.jobs_remaining
+          end
+
+          AdvanceStageWorker.perform_async(project.id, waiters, :notes)
+        end
+      end
+    end
+  end
+end
diff --git a/app/workers/gitlab/github_import/stage/import_notes_worker.rb b/app/workers/gitlab/github_import/stage/import_notes_worker.rb
new file mode 100644
index 00000000000..9810ed25cf9
--- /dev/null
+++ b/app/workers/gitlab/github_import/stage/import_notes_worker.rb
@@ -0,0 +1,27 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    module Stage
+      class ImportNotesWorker
+        include Sidekiq::Worker
+        include GithubImport::Queue
+        include StageMethods
+
+        # client - An instance of Gitlab::GithubImport::Client.
+        # project - An instance of Project.
+        def import(client, project)
+          waiter = Importer::NotesImporter
+            .new(project, client)
+            .execute
+
+          AdvanceStageWorker.perform_async(
+            project.id,
+            { waiter.key => waiter.jobs_remaining },
+            :finish
+          )
+        end
+      end
+    end
+  end
+end
diff --git a/app/workers/gitlab/github_import/stage/import_pull_requests_worker.rb b/app/workers/gitlab/github_import/stage/import_pull_requests_worker.rb
new file mode 100644
index 00000000000..c531f26e897
--- /dev/null
+++ b/app/workers/gitlab/github_import/stage/import_pull_requests_worker.rb
@@ -0,0 +1,29 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    module Stage
+      class ImportPullRequestsWorker
+        include Sidekiq::Worker
+        include GithubImport::Queue
+        include StageMethods
+
+        # client - An instance of Gitlab::GithubImport::Client.
+        # project - An instance of Project.
+        def import(client, project)
+          waiter = Importer::PullRequestsImporter
+            .new(project, client)
+            .execute
+
+          project.refresh_import_jid_expiration
+
+          AdvanceStageWorker.perform_async(
+            project.id,
+            { waiter.key => waiter.jobs_remaining },
+            :issues_and_diff_notes
+          )
+        end
+      end
+    end
+  end
+end
diff --git a/app/workers/gitlab/github_import/stage/import_repository_worker.rb b/app/workers/gitlab/github_import/stage/import_repository_worker.rb
new file mode 100644
index 00000000000..aa5762e773d
--- /dev/null
+++ b/app/workers/gitlab/github_import/stage/import_repository_worker.rb
@@ -0,0 +1,38 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    module Stage
+      class ImportRepositoryWorker
+        include Sidekiq::Worker
+        include GithubImport::Queue
+        include StageMethods
+
+        # client - An instance of Gitlab::GithubImport::Client.
+        # project - An instance of Project.
+        def import(client, project)
+          # In extreme cases it's possible for a clone to take more than the
+          # import job expiration time. To work around this we schedule a
+          # separate job that will periodically run and refresh the import
+          # expiration time.
+          RefreshImportJidWorker.perform_in_the_future(project.id, jid)
+
+          importer = Importer::RepositoryImporter.new(project, client)
+
+          return unless importer.execute
+
+          counter.increment
+
+          ImportBaseDataWorker.perform_async(project.id)
+        end
+
+        def counter
+          Gitlab::Metrics.counter(
+            :github_importer_imported_repositories,
+            'The number of imported GitHub repositories'
+          )
+        end
+      end
+    end
+  end
+end
diff --git a/app/workers/repository_import_worker.rb b/app/workers/repository_import_worker.rb
index d7c0043d3b6..4e90b137b26 100644
--- a/app/workers/repository_import_worker.rb
+++ b/app/workers/repository_import_worker.rb
@@ -17,11 +17,16 @@ class RepositoryImportWorker
                               import_url: project.import_url,
                               path: project.full_path)
 
-    result = Projects::ImportService.new(project, project.creator).execute
+    service = Projects::ImportService.new(project, project.creator)
+    result = service.execute
+
+    # Some importers may perform their work asynchronously. In this case it's up
+    # to those importers to mark the import process as complete.
+    return if service.async?
+
     raise ImportError, result[:message] if result[:status] == :error
 
-    project.repository.after_import
-    project.import_finish
+    project.after_import
   rescue ImportError => ex
     fail_import(project, ex.message)
     raise
diff --git a/app/workers/update_merge_requests_worker.rb b/app/workers/update_merge_requests_worker.rb
index 150788ca611..afc47fc63d6 100644
--- a/app/workers/update_merge_requests_worker.rb
+++ b/app/workers/update_merge_requests_worker.rb
@@ -2,9 +2,7 @@ class UpdateMergeRequestsWorker
   include Sidekiq::Worker
   include DedicatedSidekiqQueue
 
-  def metrics_tags
-    @metrics_tags || {}
-  end
+  LOG_TIME_THRESHOLD = 90 # seconds
 
   def perform(project_id, user_id, oldrev, newrev, ref)
     project = Project.find_by(id: project_id)
@@ -13,11 +11,20 @@ class UpdateMergeRequestsWorker
     user = User.find_by(id: user_id)
     return unless user
 
-    @metrics_tags = {
-      project_id: project_id,
-      user_id: user_id
-    }
+    # TODO: remove this benchmarking when we have rich logging
+    time = Benchmark.measure do
+      MergeRequests::RefreshService.new(project, user).execute(oldrev, newrev, ref)
+    end
+
+    args_log = [
+      "elapsed=#{time.real}",
+      "project_id=#{project_id}",
+      "user_id=#{user_id}",
+      "oldrev=#{oldrev}",
+      "newrev=#{newrev}",
+      "ref=#{ref}"
+    ].join(',')
 
-    MergeRequests::RefreshService.new(project, user).execute(oldrev, newrev, ref)
+    Rails.logger.info("UpdateMergeRequestsWorker#perform #{args_log}") if time.real > LOG_TIME_THRESHOLD
   end
 end
diff --git a/app/workers/wait_for_cluster_creation_worker.rb b/app/workers/wait_for_cluster_creation_worker.rb
index 5aa3bbdaa9d..241ed3901dc 100644
--- a/app/workers/wait_for_cluster_creation_worker.rb
+++ b/app/workers/wait_for_cluster_creation_worker.rb
@@ -2,25 +2,10 @@ class WaitForClusterCreationWorker
   include Sidekiq::Worker
   include ClusterQueue
 
-  INITIAL_INTERVAL = 2.minutes
-  EAGER_INTERVAL = 10.seconds
-  TIMEOUT = 20.minutes
-
   def perform(cluster_id)
-    Gcp::Cluster.find_by_id(cluster_id).try do |cluster|
-      Ci::FetchGcpOperationService.new.execute(cluster) do |operation|
-        case operation.status
-        when 'RUNNING'
-          if TIMEOUT < Time.now.utc - operation.start_time.to_time.utc
-            return cluster.make_errored!("Cluster creation time exceeds timeout; #{TIMEOUT}")
-          end
-
-          WaitForClusterCreationWorker.perform_in(EAGER_INTERVAL, cluster.id)
-        when 'DONE'
-          Ci::FinalizeClusterCreationService.new.execute(cluster)
-        else
-          return cluster.make_errored!("Unexpected operation status; #{operation.status} #{operation.status_message}")
-        end
+    Clusters::Cluster.find_by_id(cluster_id).try do |cluster|
+      cluster.provider.try do |provider|
+        Clusters::Gcp::VerifyProvisionStatusService.new.execute(provider) if cluster.gcp?
       end
     end
   end
diff --git a/changelogs/unreleased/.yml b/changelogs/unreleased/.yml
new file mode 100644
index 00000000000..acf0bb80c72
--- /dev/null
+++ b/changelogs/unreleased/.yml
@@ -0,0 +1,5 @@
+---
+title: Remove update merge request worker tagging.
+merge_request:
+author:
+type: removed
diff --git a/changelogs/unreleased/20666-404-error-issue-assigned-with-issues-disabled.yml b/changelogs/unreleased/20666-404-error-issue-assigned-with-issues-disabled.yml
new file mode 100644
index 00000000000..830a275bfd5
--- /dev/null
+++ b/changelogs/unreleased/20666-404-error-issue-assigned-with-issues-disabled.yml
@@ -0,0 +1,6 @@
+---
+title: Fixes 404 error to 'Issues assigned to me' and 'Issues I've created' when issues
+  are disabled
+merge_request: 15021
+author: Jacopo Beschi @jacopo-beschi
+type: fixed
diff --git a/changelogs/unreleased/27375-dashboard-activity-performance.yml b/changelogs/unreleased/27375-dashboard-activity-performance.yml
new file mode 100644
index 00000000000..87c6197a24d
--- /dev/null
+++ b/changelogs/unreleased/27375-dashboard-activity-performance.yml
@@ -0,0 +1,5 @@
+---
+title: Improve DashboardController#activity.json performance
+merge_request: 14985
+author:
+type: performance
diff --git a/changelogs/unreleased/32098-pipelines-navigation.yml b/changelogs/unreleased/32098-pipelines-navigation.yml
new file mode 100644
index 00000000000..925c92b6be8
--- /dev/null
+++ b/changelogs/unreleased/32098-pipelines-navigation.yml
@@ -0,0 +1,6 @@
+---
+title: Stop reloading the page when using pagination and tabs - use API calls - in
+  Pipelines table
+merge_request:
+author:
+type: other
diff --git a/changelogs/unreleased/33338-internationalization-support-for-prometheus-service-configuration.yml b/changelogs/unreleased/33338-internationalization-support-for-prometheus-service-configuration.yml
new file mode 100644
index 00000000000..d61bbf2e355
--- /dev/null
+++ b/changelogs/unreleased/33338-internationalization-support-for-prometheus-service-configuration.yml
@@ -0,0 +1,5 @@
+---
+title: Add internationalization support for the prometheus integration
+merge_request: 33338
+author:
+type: other
diff --git a/changelogs/unreleased/34768-fix-issuable-header-wrapping.yml b/changelogs/unreleased/34768-fix-issuable-header-wrapping.yml
new file mode 100644
index 00000000000..49195bd4168
--- /dev/null
+++ b/changelogs/unreleased/34768-fix-issuable-header-wrapping.yml
@@ -0,0 +1,5 @@
+---
+title: Fix problem with issuable header wrapping when content is too long
+merge_request:
+author:
+type: fixed
diff --git a/changelogs/unreleased/3615-improve-welcome-screen.yml b/changelogs/unreleased/3615-improve-welcome-screen.yml
new file mode 100644
index 00000000000..862efddb162
--- /dev/null
+++ b/changelogs/unreleased/3615-improve-welcome-screen.yml
@@ -0,0 +1,5 @@
+---
+title: Reorganize welcome page for new users
+merge_request:
+author:
+type: other
diff --git a/changelogs/unreleased/36629-35958-add-cluster-application-section.yml b/changelogs/unreleased/36629-35958-add-cluster-application-section.yml
new file mode 100644
index 00000000000..0afa53e8642
--- /dev/null
+++ b/changelogs/unreleased/36629-35958-add-cluster-application-section.yml
@@ -0,0 +1,6 @@
+---
+title: Add applications section to GKE clusters page to easily install Helm Tiller,
+  Ingress
+merge_request:
+author:
+type: added
diff --git a/changelogs/unreleased/37442-api-branches-id-repository-branches-is-calling-gitaly-n-1-times-per-request.yml b/changelogs/unreleased/37442-api-branches-id-repository-branches-is-calling-gitaly-n-1-times-per-request.yml
new file mode 100644
index 00000000000..11a11a289bf
--- /dev/null
+++ b/changelogs/unreleased/37442-api-branches-id-repository-branches-is-calling-gitaly-n-1-times-per-request.yml
@@ -0,0 +1,5 @@
+---
+title: Improve performance of the /projects/:id/repository/branches API endpoint
+merge_request: 15215
+author:
+type: performance
diff --git a/changelogs/unreleased/37824-many-branches-lock-server.yml b/changelogs/unreleased/37824-many-branches-lock-server.yml
new file mode 100644
index 00000000000..f75f79ec4a0
--- /dev/null
+++ b/changelogs/unreleased/37824-many-branches-lock-server.yml
@@ -0,0 +1,6 @@
+---
+title: While displaying a commit, do not show list of related branches if there are
+  thousands of branches
+merge_request: 14812
+author:
+type: other
diff --git a/changelogs/unreleased/38075_allow_refernce_integer_labels.yml b/changelogs/unreleased/38075_allow_refernce_integer_labels.yml
new file mode 100644
index 00000000000..b5342d4adf8
--- /dev/null
+++ b/changelogs/unreleased/38075_allow_refernce_integer_labels.yml
@@ -0,0 +1,5 @@
+---
+title: Fix errors when selecting numeric-only labels in the labels autocomplete selector
+merge_request: 14607
+author: haseebeqx
+type: fixed
diff --git a/changelogs/unreleased/38247-hide-create-mr-button-in-issue-show.yml b/changelogs/unreleased/38247-hide-create-mr-button-in-issue-show.yml
new file mode 100644
index 00000000000..57ddd8f8388
--- /dev/null
+++ b/changelogs/unreleased/38247-hide-create-mr-button-in-issue-show.yml
@@ -0,0 +1,5 @@
+---
+title: Remove create MR button from issues when MRs are disabled
+merge_request: 15071
+author: George Andrinopoulos
+type: fixed
diff --git a/changelogs/unreleased/38394-smarter-interval.yml b/changelogs/unreleased/38394-smarter-interval.yml
new file mode 100644
index 00000000000..ead8c3eca5a
--- /dev/null
+++ b/changelogs/unreleased/38394-smarter-interval.yml
@@ -0,0 +1,5 @@
+---
+title: Update Merge Request polling so there is only one request at a time
+merge_request: 15032
+author:
+type: fixed
diff --git a/changelogs/unreleased/38395-mr-widget-ci.yml b/changelogs/unreleased/38395-mr-widget-ci.yml
new file mode 100644
index 00000000000..5109f1bec44
--- /dev/null
+++ b/changelogs/unreleased/38395-mr-widget-ci.yml
@@ -0,0 +1,6 @@
+---
+title: Moves mini graph of pipeline to the end of sentence in MR widget. Cleans HTML
+  and tests
+merge_request:
+author:
+type: fixed
diff --git a/changelogs/unreleased/38589-internationalize-tags-page.yml b/changelogs/unreleased/38589-internationalize-tags-page.yml
new file mode 100644
index 00000000000..4af3da8c23c
--- /dev/null
+++ b/changelogs/unreleased/38589-internationalize-tags-page.yml
@@ -0,0 +1,5 @@
+---
+title: Internationalized tags page
+merge_request: 38589
+author:
+type: other
diff --git a/changelogs/unreleased/39109-reenable-scroll-job.yml b/changelogs/unreleased/39109-reenable-scroll-job.yml
new file mode 100644
index 00000000000..a771f8f8941
--- /dev/null
+++ b/changelogs/unreleased/39109-reenable-scroll-job.yml
@@ -0,0 +1,5 @@
+---
+title: Enables scroll to bottom once user has scrolled back to bottom in job log
+merge_request:
+author:
+type: fixed
diff --git a/changelogs/unreleased/39335-add-time-spend-to-milestones.yml b/changelogs/unreleased/39335-add-time-spend-to-milestones.yml
new file mode 100644
index 00000000000..41a43418cbf
--- /dev/null
+++ b/changelogs/unreleased/39335-add-time-spend-to-milestones.yml
@@ -0,0 +1,5 @@
+---
+title: Add total time spent to milestones
+merge_request: 15116
+author: George Andrinopoulos
+type: added
diff --git a/changelogs/unreleased/39436-pages-api-administrative.yml b/changelogs/unreleased/39436-pages-api-administrative.yml
new file mode 100644
index 00000000000..f38bbbd479c
--- /dev/null
+++ b/changelogs/unreleased/39436-pages-api-administrative.yml
@@ -0,0 +1,5 @@
+---
+title: Add administrative endpoint to list all pages domains
+merge_request: 15160
+author: Travis Miller
+type: added
diff --git a/changelogs/unreleased/39573-hashed-storage-backup.yml b/changelogs/unreleased/39573-hashed-storage-backup.yml
new file mode 100644
index 00000000000..40ee589c8cc
--- /dev/null
+++ b/changelogs/unreleased/39573-hashed-storage-backup.yml
@@ -0,0 +1,5 @@
+---
+title: Fix gitlab:backup rake for hashed storage based repositories
+merge_request: 15400
+author:
+type: fixed
diff --git a/changelogs/unreleased/39602-move-update-project-counter-caches-out-of-issues-merge-requests.yml b/changelogs/unreleased/39602-move-update-project-counter-caches-out-of-issues-merge-requests.yml
new file mode 100644
index 00000000000..056afe43010
--- /dev/null
+++ b/changelogs/unreleased/39602-move-update-project-counter-caches-out-of-issues-merge-requests.yml
@@ -0,0 +1,5 @@
+---
+title: Move update_project_counter_caches? out of issue and merge request
+merge_request: 15300
+author: George Andrinopoulos
+type: other
diff --git a/changelogs/unreleased/39649-change-default-size-for-gke-cluster-creation.yml b/changelogs/unreleased/39649-change-default-size-for-gke-cluster-creation.yml
new file mode 100644
index 00000000000..6faa30177ad
--- /dev/null
+++ b/changelogs/unreleased/39649-change-default-size-for-gke-cluster-creation.yml
@@ -0,0 +1,5 @@
+---
+title: Change default cluster size to n1-default-2
+merge_request: 39649
+author: Fabio Busatto
+type: changed
diff --git a/changelogs/unreleased/39668-tooltip-safari.yml b/changelogs/unreleased/39668-tooltip-safari.yml
new file mode 100644
index 00000000000..5a0f677cf10
--- /dev/null
+++ b/changelogs/unreleased/39668-tooltip-safari.yml
@@ -0,0 +1,5 @@
+---
+title: Remove native title tooltip in pipeline jobs dropdown in Safari
+merge_request:
+author:
+type: fixed
diff --git a/changelogs/unreleased/39704_fix_webhooks_log_time.yml b/changelogs/unreleased/39704_fix_webhooks_log_time.yml
deleted file mode 100644
index 1234663e66b..00000000000
--- a/changelogs/unreleased/39704_fix_webhooks_log_time.yml
+++ /dev/null
@@ -1,5 +0,0 @@
----
-title: Fix webhooks recent deliveries
-merge_request: 15146
-author: Alexander Randa (@randaalex)
-type: fixed
diff --git a/changelogs/unreleased/39757-border-zero-of-scss-lint.yml b/changelogs/unreleased/39757-border-zero-of-scss-lint.yml
new file mode 100644
index 00000000000..ef0ac6c7df9
--- /dev/null
+++ b/changelogs/unreleased/39757-border-zero-of-scss-lint.yml
@@ -0,0 +1,5 @@
+---
+title: Enable BorderZero rule in scss-lint
+merge_request: 15168
+author: Takuya Noguchi
+type: other
diff --git a/changelogs/unreleased/39791-when-reopening-an-issue-the-mattermost-notification-has-no-context-to-the-issue.yml b/changelogs/unreleased/39791-when-reopening-an-issue-the-mattermost-notification-has-no-context-to-the-issue.yml
new file mode 100644
index 00000000000..143641c6183
--- /dev/null
+++ b/changelogs/unreleased/39791-when-reopening-an-issue-the-mattermost-notification-has-no-context-to-the-issue.yml
@@ -0,0 +1,5 @@
+---
+title: Include link to issue in reopen message for Slack and Mattermost notifications
+merge_request:
+author:
+type: fixed
diff --git a/changelogs/unreleased/39878-commit-pipeline-reads-wrong-key.yml b/changelogs/unreleased/39878-commit-pipeline-reads-wrong-key.yml
new file mode 100644
index 00000000000..b24edfe0cb9
--- /dev/null
+++ b/changelogs/unreleased/39878-commit-pipeline-reads-wrong-key.yml
@@ -0,0 +1,5 @@
+---
+title: Fix commit pipeline showing wrong status
+merge_request:
+author:
+type: fixed
diff --git a/changelogs/unreleased/39884-fix-pipeline-transition-with-single-manual-action.yml b/changelogs/unreleased/39884-fix-pipeline-transition-with-single-manual-action.yml
new file mode 100644
index 00000000000..580b97241e7
--- /dev/null
+++ b/changelogs/unreleased/39884-fix-pipeline-transition-with-single-manual-action.yml
@@ -0,0 +1,6 @@
+---
+title: Fix pipeline status transition for single manual job. This would also fix pipeline
+  duration becuse it is depending on status transition
+merge_request: 15251
+author:
+type: fixed
diff --git a/changelogs/unreleased/39895-cant-set-mattermost-username-channel-from-api.yml b/changelogs/unreleased/39895-cant-set-mattermost-username-channel-from-api.yml
new file mode 100644
index 00000000000..358c007387e
--- /dev/null
+++ b/changelogs/unreleased/39895-cant-set-mattermost-username-channel-from-api.yml
@@ -0,0 +1,5 @@
+---
+title: Fix acceptance of username for Mattermost service update
+merge_request: 15275
+author:
+type: fixed
diff --git a/changelogs/unreleased/40068-runner-sorting-regression.yml b/changelogs/unreleased/40068-runner-sorting-regression.yml
new file mode 100644
index 00000000000..6a2bd59d6d6
--- /dev/null
+++ b/changelogs/unreleased/40068-runner-sorting-regression.yml
@@ -0,0 +1,5 @@
+---
+title: Revert a regression on runners sorting (!15134)
+merge_request: 15341
+author: Takuya Noguchi
+type: fixed
diff --git a/changelogs/unreleased/40122-only-one-note-webhook-is-triggered-when-a-comment-with-time-spent-is-added.yml b/changelogs/unreleased/40122-only-one-note-webhook-is-triggered-when-a-comment-with-time-spent-is-added.yml
new file mode 100644
index 00000000000..a2ae2059c47
--- /dev/null
+++ b/changelogs/unreleased/40122-only-one-note-webhook-is-triggered-when-a-comment-with-time-spent-is-added.yml
@@ -0,0 +1,5 @@
+---
+title: Add total_time_spent to the `changes` hash in issuable Webhook payloads
+merge_request: 15381
+author:
+type: changed
diff --git a/changelogs/unreleased/40161-extra-margin-on-svg-logo-in-header.yml b/changelogs/unreleased/40161-extra-margin-on-svg-logo-in-header.yml
new file mode 100644
index 00000000000..fdaa90f0d5d
--- /dev/null
+++ b/changelogs/unreleased/40161-extra-margin-on-svg-logo-in-header.yml
@@ -0,0 +1,5 @@
+---
+title: Remove extra margin from wordmark in header
+merge_request:
+author:
+type: fixed
diff --git a/changelogs/unreleased/40198-fix-gpg-badge-links.yml b/changelogs/unreleased/40198-fix-gpg-badge-links.yml
new file mode 100644
index 00000000000..62b962acefa
--- /dev/null
+++ b/changelogs/unreleased/40198-fix-gpg-badge-links.yml
@@ -0,0 +1,6 @@
+---
+title: Fix issue where clicking a GPG verification badge would scroll to the top of
+  the page
+merge_request: 15407
+author:
+type: fixed
diff --git a/changelogs/unreleased/add-changes-count-to-merge-requests-api.yml b/changelogs/unreleased/add-changes-count-to-merge-requests-api.yml
new file mode 100644
index 00000000000..d0a00fafb52
--- /dev/null
+++ b/changelogs/unreleased/add-changes-count-to-merge-requests-api.yml
@@ -0,0 +1,5 @@
+---
+title: Add a count of changes to the merge requests API
+merge_request:
+author:
+type: changed
diff --git a/changelogs/unreleased/add-ingress-to-cluster-applications.yml b/changelogs/unreleased/add-ingress-to-cluster-applications.yml
new file mode 100644
index 00000000000..0064e8672f8
--- /dev/null
+++ b/changelogs/unreleased/add-ingress-to-cluster-applications.yml
@@ -0,0 +1,5 @@
+---
+title: Add Ingress to available Cluster applications
+merge_request:
+author:
+type: added
diff --git a/changelogs/unreleased/animate-auto-devops.yml b/changelogs/unreleased/animate-auto-devops.yml
deleted file mode 100644
index c572dbdd093..00000000000
--- a/changelogs/unreleased/animate-auto-devops.yml
+++ /dev/null
@@ -1,5 +0,0 @@
----
-title: Animate auto devops graphic
-merge_request:
-author:
-type: other
diff --git a/changelogs/unreleased/brand_header_change.yml b/changelogs/unreleased/brand_header_change.yml
new file mode 100644
index 00000000000..6ea6e8192a4
--- /dev/null
+++ b/changelogs/unreleased/brand_header_change.yml
@@ -0,0 +1,5 @@
+---
+title: When a custom header logo is present, don't show GitLab type logo
+merge_request:
+author:
+type: changed
diff --git a/changelogs/unreleased/bugfix_banzai_closed_milestones.yml b/changelogs/unreleased/bugfix_banzai_closed_milestones.yml
new file mode 100644
index 00000000000..4b5c716ddad
--- /dev/null
+++ b/changelogs/unreleased/bugfix_banzai_closed_milestones.yml
@@ -0,0 +1,5 @@
+---
+title: Fix GFM reference links for closed milestones
+merge_request: 15234
+author: Vitaliy @blackst0ne Klachkov
+type: fixed
diff --git a/changelogs/unreleased/bvl-free-paths.yml b/changelogs/unreleased/bvl-free-paths.yml
new file mode 100644
index 00000000000..f15459cc788
--- /dev/null
+++ b/changelogs/unreleased/bvl-free-paths.yml
@@ -0,0 +1,5 @@
+---
+title: Free up some reserved group names
+merge_request: 15052
+author:
+type: other
diff --git a/changelogs/unreleased/bvl-refresh-member-listing-on-removal.yml b/changelogs/unreleased/bvl-refresh-member-listing-on-removal.yml
new file mode 100644
index 00000000000..48b4051711c
--- /dev/null
+++ b/changelogs/unreleased/bvl-refresh-member-listing-on-removal.yml
@@ -0,0 +1,5 @@
+---
+title: Don't use JS to delete memberships from projects and groups
+merge_request: 15344
+author:
+type: fixed
diff --git a/changelogs/unreleased/bvl-subgroup-in-dropdowns.yml b/changelogs/unreleased/bvl-subgroup-in-dropdowns.yml
new file mode 100644
index 00000000000..1114d429dec
--- /dev/null
+++ b/changelogs/unreleased/bvl-subgroup-in-dropdowns.yml
@@ -0,0 +1,5 @@
+---
+title: Make sure a user can add projects to subgroups they have access to
+merge_request: 15294
+author:
+type: fixed
diff --git a/changelogs/unreleased/bvl-unlink-fixes.yml b/changelogs/unreleased/bvl-unlink-fixes.yml
deleted file mode 100644
index 685d78f479d..00000000000
--- a/changelogs/unreleased/bvl-unlink-fixes.yml
+++ /dev/null
@@ -1,5 +0,0 @@
----
-title: Fix issues with forked projects of which the source was deleted
-merge_request: 15150
-author:
-type: fixed
diff --git a/changelogs/unreleased/cache-user-keys-count.yml b/changelogs/unreleased/cache-user-keys-count.yml
new file mode 100644
index 00000000000..181be95622c
--- /dev/null
+++ b/changelogs/unreleased/cache-user-keys-count.yml
@@ -0,0 +1,5 @@
+---
+title: Cache the number of user SSH keys
+merge_request:
+author:
+type: performance
diff --git a/changelogs/unreleased/cleanup-issues-schema.yml b/changelogs/unreleased/cleanup-issues-schema.yml
new file mode 100644
index 00000000000..9f5fb0bdf82
--- /dev/null
+++ b/changelogs/unreleased/cleanup-issues-schema.yml
@@ -0,0 +1,5 @@
+---
+title: Clean up schema of the "issues" table
+merge_request:
+author:
+type: other
diff --git a/changelogs/unreleased/dm-avatarable-with-asset-host.yml b/changelogs/unreleased/dm-avatarable-with-asset-host.yml
new file mode 100644
index 00000000000..6cf8d719afb
--- /dev/null
+++ b/changelogs/unreleased/dm-avatarable-with-asset-host.yml
@@ -0,0 +1,6 @@
+---
+title: Always return full avatar URL for private/internal groups/projects when asset
+  host is set
+merge_request:
+author:
+type: fixed
diff --git a/changelogs/unreleased/dm-notes-actions-noteable-for-update.yml b/changelogs/unreleased/dm-notes-actions-noteable-for-update.yml
new file mode 100644
index 00000000000..1d2f58bc765
--- /dev/null
+++ b/changelogs/unreleased/dm-notes-actions-noteable-for-update.yml
@@ -0,0 +1,5 @@
+---
+title: Make sure NotesActions#noteable returns a Noteable in the update action
+merge_request:
+author:
+type: fixed
diff --git a/changelogs/unreleased/dm-notes-for-commit-id.yml b/changelogs/unreleased/dm-notes-for-commit-id.yml
new file mode 100644
index 00000000000..5b83332d82f
--- /dev/null
+++ b/changelogs/unreleased/dm-notes-for-commit-id.yml
@@ -0,0 +1,6 @@
+---
+title: Improve performance of commits list by fully using DB index when getting commit
+  note counts
+merge_request:
+author:
+type: performance
diff --git a/changelogs/unreleased/dm-reallow-project-path-ending-in-period.yml b/changelogs/unreleased/dm-reallow-project-path-ending-in-period.yml
new file mode 100644
index 00000000000..ad41d9b84c3
--- /dev/null
+++ b/changelogs/unreleased/dm-reallow-project-path-ending-in-period.yml
@@ -0,0 +1,5 @@
+---
+title: Reallow project paths ending in periods
+merge_request:
+author:
+type: fixed
diff --git a/changelogs/unreleased/enable-scss-lint-unnecessary-mantissa.yml b/changelogs/unreleased/enable-scss-lint-unnecessary-mantissa.yml
new file mode 100644
index 00000000000..1049e94f312
--- /dev/null
+++ b/changelogs/unreleased/enable-scss-lint-unnecessary-mantissa.yml
@@ -0,0 +1,5 @@
+---
+title: Enable UnnecessaryMantissa in scss-lint
+merge_request: 15255
+author: Takuya Noguchi
+type: other
diff --git a/changelogs/unreleased/feature-change-signout-route.yml b/changelogs/unreleased/feature-change-signout-route.yml
new file mode 100644
index 00000000000..bccb85b3eaf
--- /dev/null
+++ b/changelogs/unreleased/feature-change-signout-route.yml
@@ -0,0 +1,5 @@
+---
+title: Change 'Sign Out' route from a DELETE to a GET
+merge_request: 39708
+author: Joe Marty
+type: changed
diff --git a/changelogs/unreleased/feature-custom-attributes-on-projects-and-groups.yml b/changelogs/unreleased/feature-custom-attributes-on-projects-and-groups.yml
new file mode 100644
index 00000000000..9eae989a270
--- /dev/null
+++ b/changelogs/unreleased/feature-custom-attributes-on-projects-and-groups.yml
@@ -0,0 +1,5 @@
+---
+title: Support custom attributes on groups and projects
+merge_request: 14593
+author: Markus Koller
+type: changed
diff --git a/changelogs/unreleased/feature-hashed-storage-repo-import.yml b/changelogs/unreleased/feature-hashed-storage-repo-import.yml
new file mode 100644
index 00000000000..73c16a99053
--- /dev/null
+++ b/changelogs/unreleased/feature-hashed-storage-repo-import.yml
@@ -0,0 +1,5 @@
+---
+title: Improve GitLab Import rake task to work with Hashed Storage and Subgroups
+merge_request:
+author:
+type: changed
diff --git a/changelogs/unreleased/feature_change_sort_refs.yml b/changelogs/unreleased/feature_change_sort_refs.yml
new file mode 100644
index 00000000000..2dccd87d228
--- /dev/null
+++ b/changelogs/unreleased/feature_change_sort_refs.yml
@@ -0,0 +1,5 @@
+---
+title: Change tags order in refs dropdown
+merge_request: 15235
+author: Vitaliy @blackst0ne Klachkov
+type: changed
diff --git a/changelogs/unreleased/fix-502-mrs-with-lots-of-versions.yml b/changelogs/unreleased/fix-502-mrs-with-lots-of-versions.yml
new file mode 100644
index 00000000000..32cdfba4eec
--- /dev/null
+++ b/changelogs/unreleased/fix-502-mrs-with-lots-of-versions.yml
@@ -0,0 +1,6 @@
+---
+title: Ensure merge requests with lots of version don't time out when searching for
+  pipelines
+merge_request:
+author:
+type: performance
diff --git a/changelogs/unreleased/fix-filter-by-my-reaction.yml b/changelogs/unreleased/fix-filter-by-my-reaction.yml
new file mode 100644
index 00000000000..8bf91ddf893
--- /dev/null
+++ b/changelogs/unreleased/fix-filter-by-my-reaction.yml
@@ -0,0 +1,5 @@
+---
+title: Fix filter by my reaction is not working
+merge_request: 15345
+author: Hiroyuki Sato
+type: fixed
diff --git a/changelogs/unreleased/fix-gb-update-registry-path-reference-regexp.yml b/changelogs/unreleased/fix-gb-update-registry-path-reference-regexp.yml
new file mode 100644
index 00000000000..55c1089ade5
--- /dev/null
+++ b/changelogs/unreleased/fix-gb-update-registry-path-reference-regexp.yml
@@ -0,0 +1,5 @@
+---
+title: Update container repository path reference and allow using double underscore
+merge_request: 15417
+author:
+type: fixed
diff --git a/changelogs/unreleased/fix-issues-api-list-performance.yml b/changelogs/unreleased/fix-issues-api-list-performance.yml
new file mode 100644
index 00000000000..9c180f4d55e
--- /dev/null
+++ b/changelogs/unreleased/fix-issues-api-list-performance.yml
@@ -0,0 +1,5 @@
+---
+title: Speed up issues list APIs
+merge_request:
+author:
+type: performance
diff --git a/changelogs/unreleased/fix-md-form-tabs-double-click-toggle.yml b/changelogs/unreleased/fix-md-form-tabs-double-click-toggle.yml
new file mode 100644
index 00000000000..0ec9bcbcde2
--- /dev/null
+++ b/changelogs/unreleased/fix-md-form-tabs-double-click-toggle.yml
@@ -0,0 +1,6 @@
+---
+title: Fix markdown form tabs toggling preview mode from double clicking write mode
+  button
+merge_request: 15119
+author:
+type: fixed
diff --git a/changelogs/unreleased/fix-sm-31771-do-not-allow-jobs-to-be-erased-new.yml b/changelogs/unreleased/fix-sm-31771-do-not-allow-jobs-to-be-erased-new.yml
new file mode 100644
index 00000000000..198116f34aa
--- /dev/null
+++ b/changelogs/unreleased/fix-sm-31771-do-not-allow-jobs-to-be-erased-new.yml
@@ -0,0 +1,5 @@
+---
+title: Only owner or master can erase jobs
+merge_request: 15216
+author:
+type: changed
diff --git a/changelogs/unreleased/fix-subgroup-autocomplete.yml b/changelogs/unreleased/fix-subgroup-autocomplete.yml
new file mode 100644
index 00000000000..4baa2b02f77
--- /dev/null
+++ b/changelogs/unreleased/fix-subgroup-autocomplete.yml
@@ -0,0 +1,5 @@
+---
+title: Fix user autocomplete in subgroups
+merge_request:
+author:
+type: fixed
diff --git a/changelogs/unreleased/fix-todos-last-page.yml b/changelogs/unreleased/fix-todos-last-page.yml
new file mode 100644
index 00000000000..efcdbb75e6e
--- /dev/null
+++ b/changelogs/unreleased/fix-todos-last-page.yml
@@ -0,0 +1,5 @@
+---
+title: Fix access to the final page of todos
+merge_request:
+author:
+type: fixed
diff --git a/changelogs/unreleased/fix_diff_parsing.yml b/changelogs/unreleased/fix_diff_parsing.yml
deleted file mode 100644
index 7a26b4f9ff5..00000000000
--- a/changelogs/unreleased/fix_diff_parsing.yml
+++ /dev/null
@@ -1,5 +0,0 @@
----
-title: Fix diff parser so it tolerates to diff special markers in the content
-merge_request:
-author:
-type: fixed
diff --git a/changelogs/unreleased/fix_migration_that_adds_ff_merge_field.yml b/changelogs/unreleased/fix_migration_that_adds_ff_merge_field.yml
deleted file mode 100644
index a1685497331..00000000000
--- a/changelogs/unreleased/fix_migration_that_adds_ff_merge_field.yml
+++ /dev/null
@@ -1,5 +0,0 @@
----
-title: Fix a migration that adds merge_requests_ff_only_enabled column to MR table
-merge_request:
-author:
-type: fixed
diff --git a/changelogs/unreleased/issue_39176.yml b/changelogs/unreleased/issue_39176.yml
deleted file mode 100644
index 6255b51c094..00000000000
--- a/changelogs/unreleased/issue_39176.yml
+++ /dev/null
@@ -1,5 +0,0 @@
----
-title: Render 404 when polling commit notes without having permissions
-merge_request:
-author:
-type: fixed
diff --git a/changelogs/unreleased/issue_39238.yml b/changelogs/unreleased/issue_39238.yml
new file mode 100644
index 00000000000..75a4969ca9e
--- /dev/null
+++ b/changelogs/unreleased/issue_39238.yml
@@ -0,0 +1,5 @@
+---
+title: Fix image diff notification email from showing wrong content
+merge_request:
+author:
+type: fixed
diff --git a/changelogs/unreleased/jej-fs-prevent-push-when-missing-objects.yml b/changelogs/unreleased/jej-fs-prevent-push-when-missing-objects.yml
new file mode 100644
index 00000000000..4eeedec2c99
--- /dev/null
+++ b/changelogs/unreleased/jej-fs-prevent-push-when-missing-objects.yml
@@ -0,0 +1,5 @@
+---
+title: Prevent git push when LFS objects are missing
+merge_request: 13837
+author:
+type: added
diff --git a/changelogs/unreleased/jivl-fix-cancel-button-file-upload-new-issue.yml b/changelogs/unreleased/jivl-fix-cancel-button-file-upload-new-issue.yml
deleted file mode 100644
index 0205d9626b1..00000000000
--- a/changelogs/unreleased/jivl-fix-cancel-button-file-upload-new-issue.yml
+++ /dev/null
@@ -1,5 +0,0 @@
----
-title: Fix cancel button not working while uploading on the new issue page
-merge_request: 15137
-author:
-type: fixed
diff --git a/changelogs/unreleased/multiple-query-prometheus-graphs.yml b/changelogs/unreleased/multiple-query-prometheus-graphs.yml
new file mode 100644
index 00000000000..9d09166845e
--- /dev/null
+++ b/changelogs/unreleased/multiple-query-prometheus-graphs.yml
@@ -0,0 +1,6 @@
+---
+title: Allow multiple queries in a single Prometheus graph to support additional environments
+  (Canary, Staging, et al.)
+merge_request: 15201
+author:
+type: added
diff --git a/changelogs/unreleased/pawel-disable_nfs_metrics_checks_39730.yml b/changelogs/unreleased/pawel-disable_nfs_metrics_checks_39730.yml
deleted file mode 100644
index 556d7d069d3..00000000000
--- a/changelogs/unreleased/pawel-disable_nfs_metrics_checks_39730.yml
+++ /dev/null
@@ -1,5 +0,0 @@
----
-title: Remove Filesystem check metrics that use too much CPU to handle requests
-merge_request:
-author:
-type: performance
diff --git a/changelogs/unreleased/pawel-metrics-to-prometheus-33643.yml b/changelogs/unreleased/pawel-metrics-to-prometheus-33643.yml
new file mode 100644
index 00000000000..abab2e55f90
--- /dev/null
+++ b/changelogs/unreleased/pawel-metrics-to-prometheus-33643.yml
@@ -0,0 +1,5 @@
+---
+title: Add Prometheus equivalent of all InfluxDB metrics
+merge_request: 13891
+author:
+type: changed
diff --git a/changelogs/unreleased/pawel-show_empty_page_when_prometheus_metrics_are_disabled-35639.yml b/changelogs/unreleased/pawel-show_empty_page_when_prometheus_metrics_are_disabled-35639.yml
new file mode 100644
index 00000000000..987f7286244
--- /dev/null
+++ b/changelogs/unreleased/pawel-show_empty_page_when_prometheus_metrics_are_disabled-35639.yml
@@ -0,0 +1,5 @@
+---
+title: Make Prometheus metrics endpoint return empty response when metrics are disabled
+merge_request: 14490
+author:
+type: changed
diff --git a/changelogs/unreleased/remove-ensure-ref-fetched-from-controllers.yml b/changelogs/unreleased/remove-ensure-ref-fetched-from-controllers.yml
new file mode 100644
index 00000000000..57f54bec1e6
--- /dev/null
+++ b/changelogs/unreleased/remove-ensure-ref-fetched-from-controllers.yml
@@ -0,0 +1,5 @@
+---
+title: Stop merge requests from fetching their refs when the data is already available.
+merge_request: 15129
+author:
+type: removed
diff --git a/changelogs/unreleased/sh-fix-environment-slug-generation.yml b/changelogs/unreleased/sh-fix-environment-slug-generation.yml
deleted file mode 100644
index 8a9c670c52c..00000000000
--- a/changelogs/unreleased/sh-fix-environment-slug-generation.yml
+++ /dev/null
@@ -1,5 +0,0 @@
----
-title: Avoid regenerating the ref path for the environment
-merge_request:
-author:
-type: fixed
diff --git a/changelogs/unreleased/tc-delete-merged-protected-tags-fix.yml b/changelogs/unreleased/tc-delete-merged-protected-tags-fix.yml
new file mode 100644
index 00000000000..5d5c39108b0
--- /dev/null
+++ b/changelogs/unreleased/tc-delete-merged-protected-tags-fix.yml
@@ -0,0 +1,5 @@
+---
+title: When deleting merged branches, ignore protected tags
+merge_request: 15252
+author:
+type: fixed
diff --git a/changelogs/unreleased/text-utils.yml b/changelogs/unreleased/text-utils.yml
new file mode 100644
index 00000000000..b95bb82fe01
--- /dev/null
+++ b/changelogs/unreleased/text-utils.yml
@@ -0,0 +1,5 @@
+---
+title: Export text utils functions as es6 module and add tests
+merge_request:
+author:
+type: other
diff --git a/changelogs/unreleased/tree_item_limit.yml b/changelogs/unreleased/tree_item_limit.yml
new file mode 100644
index 00000000000..d95c5776075
--- /dev/null
+++ b/changelogs/unreleased/tree_item_limit.yml
@@ -0,0 +1,5 @@
+---
+title: Truncate tree to max 1,000 items and display notice to users
+merge_request:
+author:
+type: performance
diff --git a/changelogs/unreleased/update-emoji-digests-with-latest-from-gemojione.yml b/changelogs/unreleased/update-emoji-digests-with-latest-from-gemojione.yml
new file mode 100644
index 00000000000..e509a8df6bc
--- /dev/null
+++ b/changelogs/unreleased/update-emoji-digests-with-latest-from-gemojione.yml
@@ -0,0 +1,6 @@
+---
+title: 'Update emojis. Add :gay_pride_flag: and :speech_left:. Remove extraneous comma
+  in :cartwheel_tone4:'
+merge_request:
+author:
+type: changed
diff --git a/changelogs/unreleased/update-merge-worker-metrics.yml b/changelogs/unreleased/update-merge-worker-metrics.yml
new file mode 100644
index 00000000000..c733675926a
--- /dev/null
+++ b/changelogs/unreleased/update-merge-worker-metrics.yml
@@ -0,0 +1,5 @@
+---
+title: Add performance logging to UpdateMergeRequestsWorker.
+merge_request: 15360
+author:
+type: performance
diff --git a/changelogs/unreleased/winh-subgroups-api.yml b/changelogs/unreleased/winh-subgroups-api.yml
new file mode 100644
index 00000000000..c49e3621e9c
--- /dev/null
+++ b/changelogs/unreleased/winh-subgroups-api.yml
@@ -0,0 +1,5 @@
+---
+title: Add /groups/:id/subgroups endpoint to API
+merge_request: 15142
+author: marbemac
+type: added
diff --git a/config/dependency_decisions.yml b/config/dependency_decisions.yml
index 3af7f7bd5c0..60df92a44fc 100644
--- a/config/dependency_decisions.yml
+++ b/config/dependency_decisions.yml
@@ -459,9 +459,9 @@
     :versions: []
     :when: 2017-09-13 17:31:16.425819400 Z
 - - :approve
-  - gitlab-svgs
+  - "@gitlab-org/gitlab-svgs"
   - :who: Tim Zallmann
-    :why: Our own library - https://gitlab.com/gitlab-org/gitlab-svgs
+    :why: Our own library - GitLab License https://gitlab.com/gitlab-org/gitlab-svgs
     :versions: []
     :when: 2017-09-19 14:36:32.795496000 Z
 - - :license
@@ -471,3 +471,35 @@
     :why: 
     :versions: []
     :when: 2017-10-17 17:46:12.367554000 Z
+- - :license
+  - component-emitter
+  - MIT
+  - :who: Winnie Hellmann
+    :why: package.json does not specify the license (README.md does)
+    :versions:
+    - 1.1.2
+    :when: 2017-11-13 12:23:10.502463000 Z
+- - :license
+  - json-schema
+  - BSD
+  - :who: Winnie Hellmann
+    :why: https://github.com/kriszyp/json-schema/blob/v0.2.3/package.json#L18-L19
+    :versions:
+    - 0.2.3
+    :when: 2017-11-16 12:52:18.286091000 Z
+- - :license
+  - node-forge
+  - New BSD
+  - :who: Winnie Hellmann
+    :why: https://github.com/digitalbazaar/forge/blob/0.6.33/LICENSE
+    :versions:
+    - 0.6.33
+    :when: 2017-11-16 12:56:17.974767000 Z
+- - :license
+  - sntp
+  - BSD
+  - :who: Winnie Hellmann
+    :why: https://github.com/hueniverse/sntp/blob/v1.0.9/package.json#L28-L29
+    :versions:
+    - 1.0.9
+    :when: 2017-11-16 13:02:06.765282000 Z
diff --git a/config/initializers/1_settings.rb b/config/initializers/1_settings.rb
index 12694f8016f..d1156b0c8a8 100644
--- a/config/initializers/1_settings.rb
+++ b/config/initializers/1_settings.rb
@@ -535,6 +535,7 @@ Settings.webpack.dev_server['port']    ||= 3808
 Settings['monitoring'] ||= Settingslogic.new({})
 Settings.monitoring['ip_whitelist'] ||= ['127.0.0.1/8']
 Settings.monitoring['unicorn_sampler_interval'] ||= 10
+Settings.monitoring['ruby_sampler_interval'] ||= 60
 Settings.monitoring['sidekiq_exporter'] ||= Settingslogic.new({})
 Settings.monitoring.sidekiq_exporter['enabled'] ||= false
 Settings.monitoring.sidekiq_exporter['address'] ||= 'localhost'
diff --git a/config/initializers/7_prometheus_metrics.rb b/config/initializers/7_prometheus_metrics.rb
index 31839297523..e8f33593fe0 100644
--- a/config/initializers/7_prometheus_metrics.rb
+++ b/config/initializers/7_prometheus_metrics.rb
@@ -11,7 +11,15 @@ Prometheus::Client.configure do |config|
     config.multiprocess_files_dir ||= Rails.root.join('tmp/prometheus_multiproc_dir')
   end
 
-  config.pid_provider = Prometheus::Client::Support::Unicorn.method(:worker_pid_provider)
+  config.pid_provider = -> do
+    wid = Prometheus::Client::Support::Unicorn.worker_id
+    wid = Process.pid if wid.nil?
+    if wid.nil?
+      "process_pid_#{Process.pid}"
+    else
+      "worker_id_#{wid}"
+    end
+  end
 end
 
 Sidekiq.configure_server do |config|
@@ -19,3 +27,11 @@ Sidekiq.configure_server do |config|
     Gitlab::Metrics::SidekiqMetricsExporter.instance.start
   end
 end
+
+if Gitlab::Metrics.prometheus_metrics_enabled?
+  unless Sidekiq.server?
+    Gitlab::Metrics::Samplers::UnicornSampler.initialize_instance(Settings.monitoring.unicorn_sampler_interval).start
+  end
+
+  Gitlab::Metrics::Samplers::RubySampler.initialize_instance(Settings.monitoring.ruby_sampler_interval).start
+end
diff --git a/config/initializers/8_metrics.rb b/config/initializers/8_metrics.rb
index 2d8704622b6..7ef594836d6 100644
--- a/config/initializers/8_metrics.rb
+++ b/config/initializers/8_metrics.rb
@@ -77,7 +77,6 @@ def instrument_classes(instrumentation)
 
   instrumentation.instrument_instance_methods(Banzai::ObjectRenderer)
   instrumentation.instrument_instance_methods(Banzai::Redactor)
-  instrumentation.instrument_methods(Banzai::NoteRenderer)
 
   [Issuable, Mentionable, Participable].each do |klass|
     instrumentation.instrument_instance_methods(klass)
@@ -116,17 +115,9 @@ def instrument_classes(instrumentation)
 
   # Needed for https://gitlab.com/gitlab-org/gitlab-ce/issues/30224#note_32306159
   instrumentation.instrument_instance_method(MergeRequestDiff, :load_commits)
-
-  # Needed for https://gitlab.com/gitlab-org/gitlab-ce/issues/36061
-  instrumentation.instrument_instance_method(MergeRequest, :ensure_ref_fetched)
-  instrumentation.instrument_instance_method(MergeRequest, :fetch_ref)
 end
 # rubocop:enable Metrics/AbcSize
 
-unless Sidekiq.server?
-  Gitlab::Metrics::UnicornSampler.initialize_instance(Settings.monitoring.unicorn_sampler_interval).start
-end
-
 Gitlab::Application.configure do |config|
   # 0 should be Sentry to catch errors in this middleware
   config.middleware.insert(1, Gitlab::Metrics::RequestsRackMiddleware)
@@ -192,7 +183,7 @@ if Gitlab::Metrics.enabled?
 
   GC::Profiler.enable
 
-  Gitlab::Metrics::InfluxSampler.initialize_instance.start
+  Gitlab::Metrics::Samplers::InfluxSampler.initialize_instance.start
 
   module TrackNewRedisConnections
     def connect(*args)
diff --git a/config/initializers/devise.rb b/config/initializers/devise.rb
index c6ec0aeda7b..958859be6cf 100644
--- a/config/initializers/devise.rb
+++ b/config/initializers/devise.rb
@@ -195,7 +195,7 @@ Devise.setup do |config|
   config.navigational_formats = [:"*/*", "*/*", :html, :zip]
 
   # The default HTTP method used to sign out a resource. Default is :delete.
-  config.sign_out_via = :delete
+  config.sign_out_via = :get
 
   # ==> OmniAuth
   # To configure a new OmniAuth provider copy and edit omniauth.rb.sample
diff --git a/config/karma.config.js b/config/karma.config.js
index e459f5cdac3..9f018d14b8f 100644
--- a/config/karma.config.js
+++ b/config/karma.config.js
@@ -67,14 +67,5 @@ module.exports = function(config) {
     karmaConfig.customLaunchers.ChromeHeadlessCustom.flags.push('--enable-logging', '--v=1');
   }
 
-  if (process.env.DEBUG) {
-    karmaConfig.logLevel = config.LOG_DEBUG;
-    process.env.CHROME_LOG_FILE = process.env.CHROME_LOG_FILE || 'chrome_debug.log';
-  }
-
-  if (process.env.CHROME_LOG_FILE) {
-    karmaConfig.customLaunchers.ChromeHeadlessCustom.flags.push('--enable-logging', '--v=1');
-  }
-
   config.set(karmaConfig);
 };
diff --git a/config/locales/doorkeeper.en.yml b/config/locales/doorkeeper.en.yml
index 0da6b14c29e..b1c71095d4f 100644
--- a/config/locales/doorkeeper.en.yml
+++ b/config/locales/doorkeeper.en.yml
@@ -62,7 +62,15 @@ en:
       read_user: Read the authenticated user's personal information
       openid: Authenticate using OpenID Connect
       sudo: Perform API actions as any user in the system (if the authenticated user is an admin)
-
+    scope_desc:
+      api:
+        Full access to GitLab as the user, including read/write on all their groups and projects
+      read_user:
+        Read-only access to the user's profile information, like username, public email and full name
+      openid:
+        The ability to authenticate using GitLab, and read-only access to the user's profile information
+      sudo:
+        Access to the Sudo feature, to perform API actions as any user in the system (only available for admins)
     flash:
       applications:
         create:
diff --git a/config/prometheus/additional_metrics.yml b/config/prometheus/additional_metrics.yml
index 33b897f46e2..601a86490d4 100644
--- a/config/prometheus/additional_metrics.yml
+++ b/config/prometheus/additional_metrics.yml
@@ -145,7 +145,7 @@
       - container_memory_usage_bytes
     weight: 1
     queries:
-    - query_range: '(sum(container_memory_usage_bytes{container_name!="POD",%{environment_filter}}) / count(container_memory_usage_bytes{container_name!="POD",%{environment_filter}})) /1024/1024'
+    - query_range: '(sum(avg(container_memory_usage_bytes{container_name!="POD",environment="%{ci_environment_slug}"}) without (job))) / count(avg(container_memory_usage_bytes{container_name!="POD",environment="%{ci_environment_slug}"}) without (job)) /1024/1024'
       label: Average
       unit: MB
   - title: "CPU Utilization"
@@ -154,8 +154,6 @@
      - container_cpu_usage_seconds_total
     weight: 1
     queries:
-    - query_range: 'sum(rate(container_cpu_usage_seconds_total{container_name!="POD",%{environment_filter}}[2m])) by (cpu)  * 100'
-      label: CPU
-      unit: "%"
-      series:
-        - label: cpu
+    - query_range: 'sum(avg(rate(container_cpu_usage_seconds_total{container_name!="POD",environment="%{ci_environment_slug}"}[2m])) without (job)) * 100'
+      label: Average
+      unit: "%"
\ No newline at end of file
diff --git a/config/routes/group.rb b/config/routes/group.rb
index f4d520a2518..db99e10bb9a 100644
--- a/config/routes/group.rb
+++ b/config/routes/group.rb
@@ -8,24 +8,33 @@ constraints(GroupUrlConstrainer.new) do
   scope(path: 'groups/*id',
         controller: :groups,
         constraints: { id: Gitlab::PathRegex.full_namespace_route_regex, format: /(html|json|atom)/ }) do
-    get :edit, as: :edit_group
-    get :issues, as: :issues_group
-    get :merge_requests, as: :merge_requests_group
-    get :projects, as: :projects_group
-    get :activity, as: :activity_group
+    scope(path: '-') do
+      get :edit, as: :edit_group
+      get :issues, as: :issues_group
+      get :merge_requests, as: :merge_requests_group
+      get :projects, as: :projects_group
+      get :activity, as: :activity_group
+    end
+
     get '/', action: :show, as: :group_canonical
   end
 
-  scope(path: 'groups/*group_id',
+  scope(path: 'groups/*group_id/-',
         module: :groups,
         as: :group,
         constraints: { group_id: Gitlab::PathRegex.full_namespace_route_regex }) do
-    resources :group_members, only: [:index, :create, :update, :destroy], concerns: :access_requestable do
-      post :resend_invite, on: :member
-      delete :leave, on: :collection
+    namespace :settings do
+      resource :ci_cd, only: [:show], controller: 'ci_cd'
+    end
+
+    resources :variables, only: [:index, :show, :update, :create, :destroy]
+
+    resources :children, only: [:index]
+
+    resources :labels, except: [:show] do
+      post :toggle_subscription, on: :member
     end
 
-    resource :avatar, only: [:destroy]
     resources :milestones, constraints: { id: /[^\/]+/ }, only: [:index, :show, :edit, :update, :new, :create] do
       member do
         get :merge_requests
@@ -34,18 +43,11 @@ constraints(GroupUrlConstrainer.new) do
       end
     end
 
-    resources :labels, except: [:show] do
-      post :toggle_subscription, on: :member
-    end
-
-    scope path: '-' do
-      namespace :settings do
-        resource :ci_cd, only: [:show], controller: 'ci_cd'
-      end
-
-      resources :variables, only: [:index, :show, :update, :create, :destroy]
+    resource :avatar, only: [:destroy]
 
-      resources :children, only: [:index]
+    resources :group_members, only: [:index, :create, :update, :destroy], concerns: :access_requestable do
+      post :resend_invite, on: :member
+      delete :leave, on: :collection
     end
   end
 
@@ -58,4 +60,12 @@ constraints(GroupUrlConstrainer.new) do
     put '/', action: :update
     delete '/', action: :destroy
   end
+
+  # Legacy paths should be defined last, so they would be ignored if routes with
+  # one of the previously reserved words exist.
+  scope(path: 'groups/*group_id') do
+    Gitlab::Routing.redirect_legacy_paths(self, :labels, :milestones, :group_members,
+                                          :edit, :issues, :merge_requests, :projects,
+                                          :activity)
+  end
 end
diff --git a/config/routes/project.rb b/config/routes/project.rb
index 746c0c46677..bdafaba3ab3 100644
--- a/config/routes/project.rb
+++ b/config/routes/project.rb
@@ -186,10 +186,15 @@ constraints(ProjectUrlConstrainer.new) do
       resources :clusters, except: [:edit] do
         collection do
           get :login
+          get '/providers/gcp/new', action: :new_gcp
         end
 
         member do
           get :status, format: :json
+
+          scope :applications do
+            post '/:application', to: 'clusters/applications#create', as: :install_applications
+          end
         end
       end
 
diff --git a/config/sidekiq_queues.yml b/config/sidekiq_queues.yml
index e2bb766ee47..a8b918177de 100644
--- a/config/sidekiq_queues.yml
+++ b/config/sidekiq_queues.yml
@@ -40,6 +40,8 @@
   - [upload_checksum, 1]
   - [repository_fork, 1]
   - [repository_import, 1]
+  - [github_importer, 1]
+  - [github_importer_advance_stage, 1]
   - [project_service, 1]
   - [delete_user, 1]
   - [delete_merged_branches, 1]
diff --git a/db/migrate/20170918111708_create_project_custom_attributes.rb b/db/migrate/20170918111708_create_project_custom_attributes.rb
new file mode 100644
index 00000000000..b5bc90ec02e
--- /dev/null
+++ b/db/migrate/20170918111708_create_project_custom_attributes.rb
@@ -0,0 +1,15 @@
+class CreateProjectCustomAttributes < ActiveRecord::Migration
+  DOWNTIME = false
+
+  def change
+    create_table :project_custom_attributes do |t|
+      t.timestamps_with_timezone null: false
+      t.references :project, null: false, foreign_key: { on_delete: :cascade }
+      t.string :key, null: false
+      t.string :value, null: false
+
+      t.index [:project_id, :key], unique: true
+      t.index [:key, :value]
+    end
+  end
+end
diff --git a/db/migrate/20170918140927_create_group_custom_attributes.rb b/db/migrate/20170918140927_create_group_custom_attributes.rb
new file mode 100644
index 00000000000..3879ea15eb6
--- /dev/null
+++ b/db/migrate/20170918140927_create_group_custom_attributes.rb
@@ -0,0 +1,19 @@
+class CreateGroupCustomAttributes < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  def change
+    create_table :group_custom_attributes do |t|
+      t.timestamps_with_timezone null: false
+      t.references :group, null: false
+      t.string :key, null: false
+      t.string :value, null: false
+
+      t.index [:group_id, :key], unique: true
+      t.index [:key, :value]
+    end
+
+    add_foreign_key :group_custom_attributes, :namespaces, column: :group_id, on_delete: :cascade # rubocop: disable Migration/AddConcurrentForeignKey
+  end
+end
diff --git a/db/migrate/20171013094327_create_new_clusters_architectures.rb b/db/migrate/20171013094327_create_new_clusters_architectures.rb
new file mode 100644
index 00000000000..dabb3e25e48
--- /dev/null
+++ b/db/migrate/20171013094327_create_new_clusters_architectures.rb
@@ -0,0 +1,68 @@
+class CreateNewClustersArchitectures < ActiveRecord::Migration
+  DOWNTIME = false
+
+  def change
+    create_table :clusters do |t|
+      t.references :user, index: true, foreign_key: { on_delete: :nullify }
+
+      t.integer :provider_type
+      t.integer :platform_type
+
+      t.datetime_with_timezone :created_at, null: false
+      t.datetime_with_timezone :updated_at, null: false
+
+      t.boolean :enabled, index: true, default: true
+
+      t.string :name, null: false # If manual, read-write. If gcp, read-only.
+    end
+
+    create_table :cluster_projects do |t|
+      t.references :project, null: false, index: true, foreign_key: { on_delete: :cascade }
+      t.references :cluster, null: false, index: true, foreign_key: { on_delete: :cascade }
+
+      t.datetime_with_timezone :created_at, null: false
+      t.datetime_with_timezone :updated_at, null: false
+    end
+
+    create_table :cluster_platforms_kubernetes do |t|
+      t.references :cluster, null: false, index: { unique: true }, foreign_key: { on_delete: :cascade }
+
+      t.datetime_with_timezone :created_at, null: false
+      t.datetime_with_timezone :updated_at, null: false
+
+      t.text :api_url
+      t.text :ca_cert
+
+      t.string :namespace
+
+      t.string :username
+      t.text :encrypted_password
+      t.string :encrypted_password_iv
+
+      t.text :encrypted_token
+      t.string :encrypted_token_iv
+    end
+
+    create_table :cluster_providers_gcp do |t|
+      t.references :cluster, null: false, index: { unique: true }, foreign_key: { on_delete: :cascade }
+
+      t.integer :status
+      t.integer :num_nodes, null: false
+
+      t.datetime_with_timezone :created_at, null: false
+      t.datetime_with_timezone :updated_at, null: false
+
+      t.text :status_reason
+
+      t.string :gcp_project_id, null: false
+      t.string :zone, null: false
+      t.string :machine_type
+      t.string :operation_id
+
+      t.string :endpoint
+
+      t.text :encrypted_access_token
+      t.string :encrypted_access_token_iv
+    end
+  end
+end
diff --git a/db/migrate/20171031100710_create_clusters_kubernetes_helm_apps.rb b/db/migrate/20171031100710_create_clusters_kubernetes_helm_apps.rb
new file mode 100644
index 00000000000..a2ce37127ea
--- /dev/null
+++ b/db/migrate/20171031100710_create_clusters_kubernetes_helm_apps.rb
@@ -0,0 +1,18 @@
+class CreateClustersKubernetesHelmApps < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  def change
+    create_table :clusters_applications_helm do |t|
+      t.references :cluster, null: false, unique: true, foreign_key: { on_delete: :cascade }
+
+      t.datetime_with_timezone :created_at, null: false
+      t.datetime_with_timezone :updated_at, null: false
+
+      t.integer :status, null: false
+      t.string :version, null: false
+      t.text :status_reason
+    end
+  end
+end
diff --git a/db/migrate/20171106101200_create_clusters_kubernetes_ingress_apps.rb b/db/migrate/20171106101200_create_clusters_kubernetes_ingress_apps.rb
new file mode 100644
index 00000000000..21f48b1d1b4
--- /dev/null
+++ b/db/migrate/20171106101200_create_clusters_kubernetes_ingress_apps.rb
@@ -0,0 +1,21 @@
+class CreateClustersKubernetesIngressApps < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  def change
+    create_table :clusters_applications_ingress do |t|
+      t.references :cluster, null: false, unique: true, foreign_key: { on_delete: :cascade }
+
+      t.datetime_with_timezone :created_at, null: false
+      t.datetime_with_timezone :updated_at, null: false
+
+      t.integer :status, null: false
+      t.integer :ingress_type, null: false
+
+      t.string :version, null: false
+      t.string :cluster_ip
+      t.text :status_reason
+    end
+  end
+end
diff --git a/db/migrate/20171106132212_issues_confidential_not_null.rb b/db/migrate/20171106132212_issues_confidential_not_null.rb
new file mode 100644
index 00000000000..c959d2dd938
--- /dev/null
+++ b/db/migrate/20171106132212_issues_confidential_not_null.rb
@@ -0,0 +1,23 @@
+# See http://doc.gitlab.com/ce/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class IssuesConfidentialNotNull < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  # Set this constant to true if this migration requires downtime.
+  DOWNTIME = false
+
+  class Issue < ActiveRecord::Base
+    self.table_name = 'issues'
+  end
+
+  def up
+    Issue.where('confidential IS NULL').update_all(confidential: false)
+
+    change_column_null :issues, :confidential, false
+  end
+
+  def down
+    # There's no way / point to revert this.
+  end
+end
diff --git a/db/migrate/20171106135924_issues_milestone_id_foreign_key.rb b/db/migrate/20171106135924_issues_milestone_id_foreign_key.rb
new file mode 100644
index 00000000000..e6a780d0964
--- /dev/null
+++ b/db/migrate/20171106135924_issues_milestone_id_foreign_key.rb
@@ -0,0 +1,38 @@
+# See http://doc.gitlab.com/ce/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class IssuesMilestoneIdForeignKey < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  # Set this constant to true if this migration requires downtime.
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  class Issue < ActiveRecord::Base
+    include EachBatch
+
+    self.table_name = 'issues'
+
+    def self.with_orphaned_milestones
+      where('NOT EXISTS (SELECT true FROM milestones WHERE milestones.id = issues.milestone_id)')
+    end
+  end
+
+  def up
+    Issue.with_orphaned_milestones.each_batch(of: 100) do |batch|
+      batch.update_all(milestone_id: nil)
+    end
+
+    add_concurrent_foreign_key(
+      :issues,
+      :milestones,
+      column: :milestone_id,
+      on_delete: :nullify
+    )
+  end
+
+  def down
+    remove_foreign_key_without_error(:issues, column: :milestone_id)
+  end
+end
diff --git a/db/migrate/20171106150657_issues_updated_by_id_foreign_key.rb b/db/migrate/20171106150657_issues_updated_by_id_foreign_key.rb
new file mode 100644
index 00000000000..3b8844d7d9f
--- /dev/null
+++ b/db/migrate/20171106150657_issues_updated_by_id_foreign_key.rb
@@ -0,0 +1,45 @@
+# See http://doc.gitlab.com/ce/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class IssuesUpdatedByIdForeignKey < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  # Set this constant to true if this migration requires downtime.
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  class Issue < ActiveRecord::Base
+    include EachBatch
+
+    self.table_name = 'issues'
+
+    def self.with_orphaned_updaters
+      where('NOT EXISTS (SELECT true FROM users WHERE users.id = issues.updated_by_id)')
+        .where('updated_by_id IS NOT NULL')
+    end
+  end
+
+  def up
+    Issue.with_orphaned_updaters.each_batch(of: 100) do |batch|
+      batch.update_all(updated_by_id: nil)
+    end
+
+    # This index is only used for foreign keys, and those in turn will always
+    # specify a value. As such we can add a WHERE condition to make the index
+    # smaller.
+    add_concurrent_index(:issues, :updated_by_id, where: 'updated_by_id IS NOT NULL')
+
+    add_concurrent_foreign_key(
+      :issues,
+      :users,
+      column: :updated_by_id,
+      on_delete: :nullify
+    )
+  end
+
+  def down
+    remove_foreign_key_without_error(:issues, column: :updated_by_id)
+    remove_concurrent_index(:issues, :updated_by_id)
+  end
+end
diff --git a/db/migrate/20171106151218_issues_moved_to_id_foreign_key.rb b/db/migrate/20171106151218_issues_moved_to_id_foreign_key.rb
new file mode 100644
index 00000000000..8d2ceb8cc18
--- /dev/null
+++ b/db/migrate/20171106151218_issues_moved_to_id_foreign_key.rb
@@ -0,0 +1,44 @@
+# See http://doc.gitlab.com/ce/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class IssuesMovedToIdForeignKey < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  # Set this constant to true if this migration requires downtime.
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  class Issue < ActiveRecord::Base
+    include EachBatch
+
+    self.table_name = 'issues'
+
+    def self.with_orphaned_moved_to_issues
+      where('NOT EXISTS (SELECT true FROM issues WHERE issues.id = issues.moved_to_id)')
+        .where('moved_to_id IS NOT NULL')
+    end
+  end
+
+  def up
+    Issue.with_orphaned_moved_to_issues.each_batch(of: 100) do |batch|
+      batch.update_all(moved_to_id: nil)
+    end
+
+    add_concurrent_foreign_key(
+      :issues,
+      :issues,
+      column: :moved_to_id,
+      on_delete: :nullify
+    )
+
+    # We're using a partial index here so we only index the data we actually
+    # care about.
+    add_concurrent_index(:issues, :moved_to_id, where: 'moved_to_id IS NOT NULL')
+  end
+
+  def down
+    remove_foreign_key_without_error(:issues, column: :moved_to_id)
+    remove_concurrent_index(:issues, :moved_to_id)
+  end
+end
diff --git a/db/migrate/20171106154015_remove_issues_branch_name.rb b/db/migrate/20171106154015_remove_issues_branch_name.rb
new file mode 100644
index 00000000000..3d08225c96d
--- /dev/null
+++ b/db/migrate/20171106154015_remove_issues_branch_name.rb
@@ -0,0 +1,13 @@
+# See http://doc.gitlab.com/ce/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class RemoveIssuesBranchName < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  # Set this constant to true if this migration requires downtime.
+  DOWNTIME = false
+
+  def change
+    remove_column :issues, :branch_name, :string
+  end
+end
diff --git a/db/migrate/20171106155656_turn_issues_due_date_index_to_partial_index.rb b/db/migrate/20171106155656_turn_issues_due_date_index_to_partial_index.rb
new file mode 100644
index 00000000000..e4bed778695
--- /dev/null
+++ b/db/migrate/20171106155656_turn_issues_due_date_index_to_partial_index.rb
@@ -0,0 +1,37 @@
+# See http://doc.gitlab.com/ce/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class TurnIssuesDueDateIndexToPartialIndex < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  # Set this constant to true if this migration requires downtime.
+  DOWNTIME = false
+
+  NEW_INDEX_NAME = 'idx_issues_on_project_id_and_due_date_and_id_and_state_partial'
+  OLD_INDEX_NAME = 'index_issues_on_project_id_and_due_date_and_id_and_state'
+
+  disable_ddl_transaction!
+
+  def up
+    add_concurrent_index(
+      :issues,
+      [:project_id, :due_date, :id, :state],
+      where: 'due_date IS NOT NULL',
+      name: NEW_INDEX_NAME
+    )
+
+    # We set the column name to nil as otherwise Rails will ignore the custom
+    # index name and remove the wrong index.
+    remove_concurrent_index(:issues, nil, name: OLD_INDEX_NAME)
+  end
+
+  def down
+    add_concurrent_index(
+      :issues,
+      [:project_id, :due_date, :id, :state],
+      name: OLD_INDEX_NAME
+    )
+
+    remove_concurrent_index(:issues, nil, name: NEW_INDEX_NAME)
+  end
+end
diff --git a/db/migrate/20171106171453_add_timezone_to_issues_closed_at.rb b/db/migrate/20171106171453_add_timezone_to_issues_closed_at.rb
new file mode 100644
index 00000000000..ad540b1e509
--- /dev/null
+++ b/db/migrate/20171106171453_add_timezone_to_issues_closed_at.rb
@@ -0,0 +1,19 @@
+# See http://doc.gitlab.com/ce/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class AddTimezoneToIssuesClosedAt < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  # Set this constant to true if this migration requires downtime.
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  def up
+    change_column_type_concurrently(:issues, :closed_at, :datetime_with_timezone)
+  end
+
+  def down
+    cleanup_concurrent_column_type_change(:issues, :closed_at)
+  end
+end
diff --git a/db/post_migrate/20171013104327_migrate_gcp_clusters_to_new_clusters_architectures.rb b/db/post_migrate/20171013104327_migrate_gcp_clusters_to_new_clusters_architectures.rb
new file mode 100644
index 00000000000..4758c694563
--- /dev/null
+++ b/db/post_migrate/20171013104327_migrate_gcp_clusters_to_new_clusters_architectures.rb
@@ -0,0 +1,99 @@
+class MigrateGcpClustersToNewClustersArchitectures < ActiveRecord::Migration
+  DOWNTIME = false
+
+  class GcpCluster < ActiveRecord::Base
+    self.table_name = 'gcp_clusters'
+
+    belongs_to :project, class_name: 'Project'
+
+    include EachBatch
+  end
+
+  class Cluster < ActiveRecord::Base
+    self.table_name = 'clusters'
+
+    has_many :cluster_projects, class_name: 'ClustersProject'
+    has_many :projects, through: :cluster_projects, class_name: 'Project'
+    has_one :provider_gcp, class_name: 'ProvidersGcp'
+    has_one :platform_kubernetes, class_name: 'PlatformsKubernetes'
+
+    accepts_nested_attributes_for :provider_gcp
+    accepts_nested_attributes_for :platform_kubernetes
+
+    enum platform_type: {
+      kubernetes: 1
+    }
+
+    enum provider_type: {
+      user: 0,
+      gcp: 1
+    }
+  end
+
+  class Project < ActiveRecord::Base
+    self.table_name = 'projects'
+
+    has_one :cluster_project, class_name: 'ClustersProject'
+    has_one :cluster, through: :cluster_project, class_name: 'Cluster'
+  end
+
+  class ClustersProject < ActiveRecord::Base
+    self.table_name = 'cluster_projects'
+
+    belongs_to :cluster, class_name: 'Cluster'
+    belongs_to :project, class_name: 'Project'
+  end
+
+  class ProvidersGcp < ActiveRecord::Base
+    self.table_name = 'cluster_providers_gcp'
+  end
+
+  class PlatformsKubernetes < ActiveRecord::Base
+    self.table_name = 'cluster_platforms_kubernetes'
+  end
+
+  def up
+    GcpCluster.all.find_each(batch_size: 1) do |gcp_cluster|
+      Cluster.create(
+        enabled: gcp_cluster.enabled,
+        user_id: gcp_cluster.user_id,
+        name: gcp_cluster.gcp_cluster_name,
+        provider_type: Cluster.provider_types[:gcp],
+        platform_type: Cluster.platform_types[:kubernetes],
+        projects: [gcp_cluster.project],
+        provider_gcp_attributes: {
+          status: gcp_cluster.status,
+          status_reason: gcp_cluster.status_reason,
+          gcp_project_id: gcp_cluster.gcp_project_id,
+          zone: gcp_cluster.gcp_cluster_zone,
+          num_nodes: gcp_cluster.gcp_cluster_size,
+          machine_type: gcp_cluster.gcp_machine_type,
+          operation_id: gcp_cluster.gcp_operation_id,
+          endpoint: gcp_cluster.endpoint,
+          encrypted_access_token: gcp_cluster.encrypted_gcp_token,
+          encrypted_access_token_iv: gcp_cluster.encrypted_gcp_token_iv
+        },
+        platform_kubernetes_attributes: {
+          cluster_id: gcp_cluster.id,
+          api_url: api_url(gcp_cluster.endpoint),
+          ca_cert: gcp_cluster.ca_cert,
+          namespace: gcp_cluster.project_namespace,
+          username: gcp_cluster.username,
+          encrypted_password: gcp_cluster.encrypted_password,
+          encrypted_password_iv: gcp_cluster.encrypted_password_iv,
+          encrypted_token: gcp_cluster.encrypted_kubernetes_token,
+          encrypted_token_iv: gcp_cluster.encrypted_kubernetes_token_iv
+        } )
+    end
+  end
+
+  def down
+    execute('DELETE FROM clusters')
+  end
+
+  private
+
+  def api_url(endpoint)
+    endpoint ? 'https://' + endpoint : nil
+  end
+end
diff --git a/db/post_migrate/20171026082505_populate_merge_requests_latest_merge_request_diff_id.rb b/db/post_migrate/20171026082505_populate_merge_requests_latest_merge_request_diff_id.rb
deleted file mode 100644
index a7ebbbf34c0..00000000000
--- a/db/post_migrate/20171026082505_populate_merge_requests_latest_merge_request_diff_id.rb
+++ /dev/null
@@ -1,27 +0,0 @@
-class PopulateMergeRequestsLatestMergeRequestDiffId < ActiveRecord::Migration
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-  BATCH_SIZE = 1_000
-
-  class MergeRequest < ActiveRecord::Base
-    self.table_name = 'merge_requests'
-
-    include ::EachBatch
-  end
-
-  disable_ddl_transaction!
-
-  def up
-    update = '
-      latest_merge_request_diff_id = (
-        SELECT MAX(id)
-        FROM merge_request_diffs
-        WHERE merge_requests.id = merge_request_diffs.merge_request_id
-      )'.squish
-
-    MergeRequest.where(latest_merge_request_diff_id: nil).each_batch(of: BATCH_SIZE) do |relation|
-      relation.update_all(update)
-    end
-  end
-end
diff --git a/db/post_migrate/20171026082505_schedule_merge_request_latest_merge_request_diff_id_migrations.rb b/db/post_migrate/20171026082505_schedule_merge_request_latest_merge_request_diff_id_migrations.rb
new file mode 100644
index 00000000000..7a63382cc6d
--- /dev/null
+++ b/db/post_migrate/20171026082505_schedule_merge_request_latest_merge_request_diff_id_migrations.rb
@@ -0,0 +1,29 @@
+class ScheduleMergeRequestLatestMergeRequestDiffIdMigrations < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+  BATCH_SIZE = 50_000
+  MIGRATION = 'PopulateMergeRequestsLatestMergeRequestDiffId'
+
+  disable_ddl_transaction!
+
+  class MergeRequest < ActiveRecord::Base
+    self.table_name = 'merge_requests'
+
+    include ::EachBatch
+  end
+
+  # On GitLab.com, we saw that we generated about 500,000 dead tuples over 5 minutes.
+  # To keep replication lag from ballooning, we'll aim for 50,000 updates over 5 minutes.
+  #
+  # Assuming that there are 5 million rows affected (which is more than on
+  # GitLab.com), and that each batch of 50,000 rows takes up to 5 minutes, then
+  # we can migrate all the rows in 8.5 hours.
+  def up
+    MergeRequest.where(latest_merge_request_diff_id: nil).each_batch(of: BATCH_SIZE) do |relation, index|
+      range = relation.pluck('MIN(id)', 'MAX(id)').first
+
+      BackgroundMigrationWorker.perform_in(index * 5.minutes, MIGRATION, range)
+    end
+  end
+end
diff --git a/db/post_migrate/20171101134435_remove_ref_fetched_from_merge_requests.rb b/db/post_migrate/20171101134435_remove_ref_fetched_from_merge_requests.rb
new file mode 100644
index 00000000000..4e8f495d65d
--- /dev/null
+++ b/db/post_migrate/20171101134435_remove_ref_fetched_from_merge_requests.rb
@@ -0,0 +1,14 @@
+class RemoveRefFetchedFromMergeRequests < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  # Set this constant to true if this migration requires downtime.
+  DOWNTIME = false
+
+  # We don't need to cache this anymore: the refs are now created
+  # upon save/update and there is no more use for this flag
+  #
+  # See https://gitlab.com/gitlab-org/gitlab-ce/issues/36061
+  def change
+    remove_column :merge_requests, :ref_fetched, :boolean
+  end
+end
diff --git a/db/post_migrate/20171106180641_cleanup_add_timezone_to_issues_closed_at.rb b/db/post_migrate/20171106180641_cleanup_add_timezone_to_issues_closed_at.rb
new file mode 100644
index 00000000000..88dd8f89ba6
--- /dev/null
+++ b/db/post_migrate/20171106180641_cleanup_add_timezone_to_issues_closed_at.rb
@@ -0,0 +1,19 @@
+# See http://doc.gitlab.com/ce/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class CleanupAddTimezoneToIssuesClosedAt < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  def up
+    cleanup_concurrent_column_type_change(:issues, :closed_at)
+  end
+
+  # rubocop:disable Migration/Datetime
+  def down
+    change_column_type_concurrently(:issues, :closed_at, :datetime)
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 80d8ff92d6e..37e08d453c8 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20171026082505) do
+ActiveRecord::Schema.define(version: 20171106180641) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -462,6 +462,83 @@ ActiveRecord::Schema.define(version: 20171026082505) do
 
   add_index "ci_variables", ["project_id", "key", "environment_scope"], name: "index_ci_variables_on_project_id_and_key_and_environment_scope", unique: true, using: :btree
 
+  create_table "cluster_platforms_kubernetes", force: :cascade do |t|
+    t.integer "cluster_id", null: false
+    t.datetime_with_timezone "created_at", null: false
+    t.datetime_with_timezone "updated_at", null: false
+    t.text "api_url"
+    t.text "ca_cert"
+    t.string "namespace"
+    t.string "username"
+    t.text "encrypted_password"
+    t.string "encrypted_password_iv"
+    t.text "encrypted_token"
+    t.string "encrypted_token_iv"
+  end
+
+  add_index "cluster_platforms_kubernetes", ["cluster_id"], name: "index_cluster_platforms_kubernetes_on_cluster_id", unique: true, using: :btree
+
+  create_table "cluster_projects", force: :cascade do |t|
+    t.integer "project_id", null: false
+    t.integer "cluster_id", null: false
+    t.datetime_with_timezone "created_at", null: false
+    t.datetime_with_timezone "updated_at", null: false
+  end
+
+  add_index "cluster_projects", ["cluster_id"], name: "index_cluster_projects_on_cluster_id", using: :btree
+  add_index "cluster_projects", ["project_id"], name: "index_cluster_projects_on_project_id", using: :btree
+
+  create_table "cluster_providers_gcp", force: :cascade do |t|
+    t.integer "cluster_id", null: false
+    t.integer "status"
+    t.integer "num_nodes", null: false
+    t.datetime_with_timezone "created_at", null: false
+    t.datetime_with_timezone "updated_at", null: false
+    t.text "status_reason"
+    t.string "gcp_project_id", null: false
+    t.string "zone", null: false
+    t.string "machine_type"
+    t.string "operation_id"
+    t.string "endpoint"
+    t.text "encrypted_access_token"
+    t.string "encrypted_access_token_iv"
+  end
+
+  add_index "cluster_providers_gcp", ["cluster_id"], name: "index_cluster_providers_gcp_on_cluster_id", unique: true, using: :btree
+
+  create_table "clusters", force: :cascade do |t|
+    t.integer "user_id"
+    t.integer "provider_type"
+    t.integer "platform_type"
+    t.datetime_with_timezone "created_at", null: false
+    t.datetime_with_timezone "updated_at", null: false
+    t.boolean "enabled", default: true
+    t.string "name", null: false
+  end
+
+  add_index "clusters", ["enabled"], name: "index_clusters_on_enabled", using: :btree
+  add_index "clusters", ["user_id"], name: "index_clusters_on_user_id", using: :btree
+
+  create_table "clusters_applications_helm", force: :cascade do |t|
+    t.integer "cluster_id", null: false
+    t.datetime_with_timezone "created_at", null: false
+    t.datetime_with_timezone "updated_at", null: false
+    t.integer "status", null: false
+    t.string "version", null: false
+    t.text "status_reason"
+  end
+
+  create_table "clusters_applications_ingress", force: :cascade do |t|
+    t.integer "cluster_id", null: false
+    t.datetime_with_timezone "created_at", null: false
+    t.datetime_with_timezone "updated_at", null: false
+    t.integer "status", null: false
+    t.integer "ingress_type", null: false
+    t.string "version", null: false
+    t.string "cluster_ip"
+    t.text "status_reason"
+  end
+
   create_table "container_repositories", force: :cascade do |t|
     t.integer "project_id", null: false
     t.string "name", null: false
@@ -693,6 +770,17 @@ ActiveRecord::Schema.define(version: 20171026082505) do
   add_index "gpg_signatures", ["gpg_key_subkey_id"], name: "index_gpg_signatures_on_gpg_key_subkey_id", using: :btree
   add_index "gpg_signatures", ["project_id"], name: "index_gpg_signatures_on_project_id", using: :btree
 
+  create_table "group_custom_attributes", force: :cascade do |t|
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.integer "group_id", null: false
+    t.string "key", null: false
+    t.string "value", null: false
+  end
+
+  add_index "group_custom_attributes", ["group_id", "key"], name: "index_group_custom_attributes_on_group_id_and_key", unique: true, using: :btree
+  add_index "group_custom_attributes", ["key", "value"], name: "index_group_custom_attributes_on_key_and_value", using: :btree
+
   create_table "identities", force: :cascade do |t|
     t.string "extern_uid"
     t.string "provider"
@@ -729,13 +817,12 @@ ActiveRecord::Schema.define(version: 20171026082505) do
     t.integer "project_id"
     t.datetime "created_at"
     t.datetime "updated_at"
-    t.string "branch_name"
     t.text "description"
     t.integer "milestone_id"
     t.string "state"
     t.integer "iid"
     t.integer "updated_by_id"
-    t.boolean "confidential", default: false
+    t.boolean "confidential", default: false, null: false
     t.datetime "deleted_at"
     t.date "due_date"
     t.integer "moved_to_id"
@@ -744,11 +831,11 @@ ActiveRecord::Schema.define(version: 20171026082505) do
     t.text "description_html"
     t.integer "time_estimate"
     t.integer "relative_position"
-    t.datetime "closed_at"
     t.integer "cached_markdown_version"
     t.datetime "last_edited_at"
     t.integer "last_edited_by_id"
     t.boolean "discussion_locked"
+    t.datetime_with_timezone "closed_at"
   end
 
   add_index "issues", ["assignee_id"], name: "index_issues_on_assignee_id", using: :btree
@@ -757,13 +844,15 @@ ActiveRecord::Schema.define(version: 20171026082505) do
   add_index "issues", ["deleted_at"], name: "index_issues_on_deleted_at", using: :btree
   add_index "issues", ["description"], name: "index_issues_on_description_trigram", using: :gin, opclasses: {"description"=>"gin_trgm_ops"}
   add_index "issues", ["milestone_id"], name: "index_issues_on_milestone_id", using: :btree
+  add_index "issues", ["moved_to_id"], name: "index_issues_on_moved_to_id", where: "(moved_to_id IS NOT NULL)", using: :btree
   add_index "issues", ["project_id", "created_at", "id", "state"], name: "index_issues_on_project_id_and_created_at_and_id_and_state", using: :btree
-  add_index "issues", ["project_id", "due_date", "id", "state"], name: "index_issues_on_project_id_and_due_date_and_id_and_state", using: :btree
+  add_index "issues", ["project_id", "due_date", "id", "state"], name: "idx_issues_on_project_id_and_due_date_and_id_and_state_partial", where: "(due_date IS NOT NULL)", using: :btree
   add_index "issues", ["project_id", "iid"], name: "index_issues_on_project_id_and_iid", unique: true, using: :btree
   add_index "issues", ["project_id", "updated_at", "id", "state"], name: "index_issues_on_project_id_and_updated_at_and_id_and_state", using: :btree
   add_index "issues", ["relative_position"], name: "index_issues_on_relative_position", using: :btree
   add_index "issues", ["state"], name: "index_issues_on_state", using: :btree
   add_index "issues", ["title"], name: "index_issues_on_title_trigram", using: :gin, opclasses: {"title"=>"gin_trgm_ops"}
+  add_index "issues", ["updated_by_id"], name: "index_issues_on_updated_by_id", where: "(updated_by_id IS NOT NULL)", using: :btree
 
   create_table "keys", force: :cascade do |t|
     t.integer "user_id"
@@ -970,7 +1059,6 @@ ActiveRecord::Schema.define(version: 20171026082505) do
     t.datetime "last_edited_at"
     t.integer "last_edited_by_id"
     t.integer "head_pipeline_id"
-    t.boolean "ref_fetched"
     t.string "merge_jid"
     t.boolean "discussion_locked"
     t.integer "latest_merge_request_diff_id"
@@ -1214,6 +1302,17 @@ ActiveRecord::Schema.define(version: 20171026082505) do
 
   add_index "project_auto_devops", ["project_id"], name: "index_project_auto_devops_on_project_id", unique: true, using: :btree
 
+  create_table "project_custom_attributes", force: :cascade do |t|
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.integer "project_id", null: false
+    t.string "key", null: false
+    t.string "value", null: false
+  end
+
+  add_index "project_custom_attributes", ["key", "value"], name: "index_project_custom_attributes_on_key_and_value", using: :btree
+  add_index "project_custom_attributes", ["project_id", "key"], name: "index_project_custom_attributes_on_project_id_and_key", unique: true, using: :btree
+
   create_table "project_features", force: :cascade do |t|
     t.integer "project_id"
     t.integer "merge_requests_access_level"
@@ -1810,6 +1909,12 @@ ActiveRecord::Schema.define(version: 20171026082505) do
   add_foreign_key "ci_triggers", "projects", name: "fk_e3e63f966e", on_delete: :cascade
   add_foreign_key "ci_triggers", "users", column: "owner_id", name: "fk_e8e10d1964", on_delete: :cascade
   add_foreign_key "ci_variables", "projects", name: "fk_ada5eb64b3", on_delete: :cascade
+  add_foreign_key "cluster_platforms_kubernetes", "clusters", on_delete: :cascade
+  add_foreign_key "cluster_projects", "clusters", on_delete: :cascade
+  add_foreign_key "cluster_projects", "projects", on_delete: :cascade
+  add_foreign_key "cluster_providers_gcp", "clusters", on_delete: :cascade
+  add_foreign_key "clusters", "users", on_delete: :nullify
+  add_foreign_key "clusters_applications_helm", "clusters", on_delete: :cascade
   add_foreign_key "container_repositories", "projects"
   add_foreign_key "deploy_keys_projects", "projects", name: "fk_58a901ca7e", on_delete: :cascade
   add_foreign_key "deployments", "projects", name: "fk_b9a3851b82", on_delete: :cascade
@@ -1829,11 +1934,15 @@ ActiveRecord::Schema.define(version: 20171026082505) do
   add_foreign_key "gpg_signatures", "gpg_key_subkeys", on_delete: :nullify
   add_foreign_key "gpg_signatures", "gpg_keys", on_delete: :nullify
   add_foreign_key "gpg_signatures", "projects", on_delete: :cascade
+  add_foreign_key "group_custom_attributes", "namespaces", column: "group_id", on_delete: :cascade
   add_foreign_key "issue_assignees", "issues", name: "fk_b7d881734a", on_delete: :cascade
   add_foreign_key "issue_assignees", "users", name: "fk_5e0c8d9154", on_delete: :cascade
   add_foreign_key "issue_metrics", "issues", on_delete: :cascade
+  add_foreign_key "issues", "issues", column: "moved_to_id", name: "fk_a194299be1", on_delete: :nullify
+  add_foreign_key "issues", "milestones", name: "fk_96b1dd429c", on_delete: :nullify
   add_foreign_key "issues", "projects", name: "fk_899c8f3231", on_delete: :cascade
   add_foreign_key "issues", "users", column: "author_id", name: "fk_05f1e72feb", on_delete: :nullify
+  add_foreign_key "issues", "users", column: "updated_by_id", name: "fk_ffed080f01", on_delete: :nullify
   add_foreign_key "label_priorities", "labels", on_delete: :cascade
   add_foreign_key "label_priorities", "projects", on_delete: :cascade
   add_foreign_key "labels", "namespaces", column: "group_id", on_delete: :cascade
@@ -1859,6 +1968,7 @@ ActiveRecord::Schema.define(version: 20171026082505) do
   add_foreign_key "project_authorizations", "projects", on_delete: :cascade
   add_foreign_key "project_authorizations", "users", on_delete: :cascade
   add_foreign_key "project_auto_devops", "projects", on_delete: :cascade
+  add_foreign_key "project_custom_attributes", "projects", on_delete: :cascade
   add_foreign_key "project_features", "projects", name: "fk_18513d9b92", on_delete: :cascade
   add_foreign_key "project_group_links", "projects", name: "fk_daa8cee94c", on_delete: :cascade
   add_foreign_key "project_import_data", "projects", name: "fk_ffb9ee3a10", on_delete: :cascade
diff --git a/doc/README.md b/doc/README.md
index 7c33a708dc7..d4119d35162 100644
--- a/doc/README.md
+++ b/doc/README.md
@@ -171,6 +171,7 @@ have access to GitLab administration tools and settings.
 - [GitLab performance monitoring with InfluxDB](administration/monitoring/performance/introduction.md): Configure GitLab and InfluxDB for measuring performance metrics.
 - [GitLab performance monitoring with Prometheus](administration/monitoring/prometheus/index.md): Configure GitLab and Prometheus for measuring performance metrics.
 - [Monitoring uptime](user/admin_area/monitoring/health_check.md): Check the server status using the health check endpoint.
+- [Monitoring GitHub imports](administration/monitoring/github_imports.md)
 
 ### Performance
 
diff --git a/doc/administration/high_availability/README.md b/doc/administration/high_availability/README.md
index 4d3be0ab8f6..a88e67bfeb5 100644
--- a/doc/administration/high_availability/README.md
+++ b/doc/administration/high_availability/README.md
@@ -53,7 +53,9 @@ or in different cloud availability zones.
 
 > **Note:** GitLab recommends against choosing this HA method because of the
   complexity of managing DRBD and crafting automatic failover. This is
-  *compatible* with GitLab, but not officially *supported*.
+  *compatible* with GitLab, but not officially *supported*. If you are 
+  an EE customer, support will help you with GitLab related problems, but if the
+  root cause is identified as DRBD, we will not troubleshoot further.
 
 Components/Servers Required: 2 servers/virtual machines (one active/one passive)
 
diff --git a/doc/administration/logs.md b/doc/administration/logs.md
index c9ed2d84ccb..debaa2330d0 100644
--- a/doc/administration/logs.md
+++ b/doc/administration/logs.md
@@ -192,4 +192,13 @@ installations from source.
 
 It logs information whenever a [repository check is run][repocheck] on a project.
 
+## Reconfigure Logs
+
+Reconfigure log files live in `/var/log/gitlab/reconfigure` for Omnibus GitLab 
+packages. Installations from source don't have reconfigure logs. A reconfigure log 
+is populated whenever `gitlab-ctl reconfigure` is run manually or as part of an upgrade.
+
+Reconfigure logs files are named according to the UNIX timestamp of when the reconfigure
+was initiated, such as `1509705644.log`
+
 [repocheck]: repository_checks.md
diff --git a/doc/administration/monitoring/github_imports.md b/doc/administration/monitoring/github_imports.md
new file mode 100644
index 00000000000..5592e0a9e9a
--- /dev/null
+++ b/doc/administration/monitoring/github_imports.md
@@ -0,0 +1,101 @@
+# Monitoring GitHub imports
+
+>**Note:**
+Available since [GitLab 10.2][14731].
+
+The GitHub importer exposes various Prometheus metrics that you can use to
+monitor the health and progress of the importer.
+
+## Import Duration Times
+
+| Name                                     | Type      |
+|------------------------------------------|-----------|
+| `github_importer_total_duration_seconds` | histogram |
+
+This metric tracks the total time spent (in seconds) importing a project (from
+project creation until the import process finishes), for every imported project.
+
+The name of the project is stored in the `project` label in the format
+`namespace/name` (e.g. `gitlab-org/gitlab-ce`).
+
+## Number of imported projects
+
+| Name                                | Type    |
+|-------------------------------------|---------|
+| `github_importer_imported_projects` | counter |
+
+This metric tracks the total number of projects imported over time. This metric
+does not expose any labels.
+
+## Number of GitHub API calls
+
+| Name                            | Type    |
+|---------------------------------|---------|
+| `github_importer_request_count` | counter |
+
+This metric tracks the total number of GitHub API calls performed over time, for
+all projects. This metric does not expose any labels.
+
+## Rate limit errors
+
+| Name                              | Type    |
+|-----------------------------------|---------|
+| `github_importer_rate_limit_hits` | counter |
+
+This metric tracks the number of times we hit the GitHub rate limit, for all
+projects. This metric does not expose any labels.
+
+## Number of imported issues
+
+| Name                              | Type    |
+|-----------------------------------|---------|
+| `github_importer_imported_issues` | counter |
+
+This metric tracks the number of imported issues across all projects.
+
+The name of the project is stored in the `project` label in the format
+`namespace/name` (e.g. `gitlab-org/gitlab-ce`).
+
+## Number of imported pull requests
+
+| Name                                     | Type    |
+|------------------------------------------|---------|
+| `github_importer_imported_pull_requests` | counter |
+
+This metric tracks the number of imported pull requests across all projects.
+
+The name of the project is stored in the `project` label in the format
+`namespace/name` (e.g. `gitlab-org/gitlab-ce`).
+
+## Number of imported comments
+
+| Name                             | Type    |
+|----------------------------------|---------|
+| `github_importer_imported_notes` | counter |
+
+This metric tracks the number of imported comments across all projects.
+
+The name of the project is stored in the `project` label in the format
+`namespace/name` (e.g. `gitlab-org/gitlab-ce`).
+
+## Number of imported pull request review comments
+
+| Name                                  | Type    |
+|---------------------------------------|---------|
+| `github_importer_imported_diff_notes` | counter |
+
+This metric tracks the number of imported comments across all projects.
+
+The name of the project is stored in the `project` label in the format
+`namespace/name` (e.g. `gitlab-org/gitlab-ce`).
+
+## Number of imported repositories
+
+| Name                                    | Type    |
+|-----------------------------------------|---------|
+| `github_importer_imported_repositories` | counter |
+
+This metric tracks the number of imported repositories across all projects. This
+metric does not expose any labels.
+
+[14731]: https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/14731
diff --git a/doc/administration/repository_storage_types.md b/doc/administration/repository_storage_types.md
index bc9b6253f1a..21184fed6e9 100644
--- a/doc/administration/repository_storage_types.md
+++ b/doc/administration/repository_storage_types.md
@@ -9,7 +9,7 @@ mapping structure from the projects URLs:
 
  * Project's repository: `#{namespace}/#{project_name}.git`
  * Project's wiki: `#{namespace}/#{project_name}.wiki.git`
- 
+
 This structure made simple to migrate from existing solutions to GitLab and easy for Administrators to find where the
 repository is stored.
 
@@ -27,7 +27,7 @@ of load in big installations, and can be even worst if they are using any type o
 Last, for GitLab Geo, this storage type means we have to synchronize the disk state, replicate renames in the correct
 order or we may end-up with wrong repository or missing data temporarily.
 
-This pattern also exists in other objects stored in GitLab, like issue Attachments, GitLab Pages artifacts, 
+This pattern also exists in other objects stored in GitLab, like issue Attachments, GitLab Pages artifacts,
 Docker Containers for the integrated Registry, etc.
 
 ## Hashed Storage
@@ -62,9 +62,9 @@ you will never mistakenly restore a repository in the wrong project (considering
 
 ### How to migrate to Hashed Storage
 
-In GitLab, go to **Admin > Settings**, find the **Repository Storage** section and select 
+In GitLab, go to **Admin > Settings**, find the **Repository Storage** section and select
 "_Create new projects using hashed storage paths_".
- 
+
 To migrate your existing projects to the new storage type, check the specific [rake tasks].
 
 [ce-28283]: https://gitlab.com/gitlab-org/gitlab-ce/issues/28283
@@ -79,14 +79,14 @@ coverage status below.
 Note that things stored in an S3 compatible endpoint will not have the downsides mentioned earlier, if they are not
 prefixed with `#{namespace}/#{project_name}`, which is true for CI Cache and LFS Objects.
 
-| Storable Object | Legacy Storage | Hashed Storage | S3 Compatible | GitLab Version | 
-| ----------------| -------------- | -------------- | ------------- | -------------- |
+| Storable Object | Legacy Storage | Hashed Storage | S3 Compatible | GitLab Version |
+| --------------- | -------------- | -------------- | ------------- | -------------- |
 | Repository      | Yes            | Yes            | -             | 10.0           |
 | Attachments     | Yes            | Yes            | -             | 10.2           |
-| Avatars         | Yes            | No             | -             | -              | 
+| Avatars         | Yes            | No             | -             | -              |
 | Pages           | Yes            | No             | -             | -              |
 | Docker Registry | Yes            | No             | -             | -              |
-| CI Build Logs   | No             | No             | -             | -              | 
-| CI Artifacts    | No             | No             | -             | -              | 
+| CI Build Logs   | No             | No             | -             | -              |
+| CI Artifacts    | No             | No             | Yes (EEP)     | -              |
 | CI Cache        | No             | No             | Yes           | -              |
-| LFS Objects     | Yes            | No             | Yes (EEP)     | -              | 
+| LFS Objects     | Yes            | No             | Yes (EEP)     | -              |
diff --git a/doc/api/custom_attributes.md b/doc/api/custom_attributes.md
index 8b26f7093ab..91d1b0e1520 100644
--- a/doc/api/custom_attributes.md
+++ b/doc/api/custom_attributes.md
@@ -2,17 +2,22 @@
 
 Every API call to custom attributes must be authenticated as administrator.
 
+Custom attributes are currently available on users, groups, and projects,
+which will be referred to as "resource" in this documentation.
+
 ## List custom attributes
 
-Get all custom attributes on a user.
+Get all custom attributes on a resource.
 
 ```
 GET /users/:id/custom_attributes
+GET /groups/:id/custom_attributes
+GET /projects/:id/custom_attributes
 ```
 
 | Attribute | Type | Required | Description |
 | --------- | ---- | -------- | ----------- |
-| `id` | integer | yes | The ID of a user |
+| `id` | integer | yes | The ID of a resource |
 
 ```bash
 curl --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/users/42/custom_attributes
@@ -35,15 +40,17 @@ Example response:
 
 ## Single custom attribute
 
-Get a single custom attribute on a user.
+Get a single custom attribute on a resource.
 
 ```
 GET /users/:id/custom_attributes/:key
+GET /groups/:id/custom_attributes/:key
+GET /projects/:id/custom_attributes/:key
 ```
 
 | Attribute | Type | Required | Description |
 | --------- | ---- | -------- | ----------- |
-| `id` | integer | yes | The ID of a user |
+| `id` | integer | yes | The ID of a resource |
 | `key` | string | yes | The key of the custom attribute |
 
 ```bash
@@ -61,16 +68,18 @@ Example response:
 
 ## Set custom attribute
 
-Set a custom attribute on a user. The attribute will be updated if it already exists,
+Set a custom attribute on a resource. The attribute will be updated if it already exists,
 or newly created otherwise.
 
 ```
 PUT /users/:id/custom_attributes/:key
+PUT /groups/:id/custom_attributes/:key
+PUT /projects/:id/custom_attributes/:key
 ```
 
 | Attribute | Type | Required | Description |
 | --------- | ---- | -------- | ----------- |
-| `id` | integer | yes | The ID of a user |
+| `id` | integer | yes | The ID of a resource |
 | `key` | string | yes | The key of the custom attribute |
 | `value` | string | yes | The value of the custom attribute |
 
@@ -89,15 +98,17 @@ Example response:
 
 ## Delete custom attribute
 
-Delete a custom attribute on a user.
+Delete a custom attribute on a resource.
 
 ```
 DELETE /users/:id/custom_attributes/:key
+DELETE /groups/:id/custom_attributes/:key
+DELETE /projects/:id/custom_attributes/:key
 ```
 
 | Attribute | Type | Required | Description |
 | --------- | ---- | -------- | ----------- |
-| `id` | integer | yes | The ID of a user |
+| `id` | integer | yes | The ID of a resource |
 | `key` | string | yes | The key of the custom attribute |
 
 ```bash
diff --git a/doc/api/environments.md b/doc/api/environments.md
index e8deb3e07e9..6e20781f51a 100644
--- a/doc/api/environments.md
+++ b/doc/api/environments.md
@@ -36,7 +36,7 @@ Creates a new environment with the given name and external_url.
 It returns `201` if the environment was successfully created, `400` for wrong parameters.
 
 ```
-POST /projects/:id/environment
+POST /projects/:id/environments
 ```
 
 | Attribute     | Type    | Required | Description                  |
diff --git a/doc/api/groups.md b/doc/api/groups.md
index 99d200c9c93..6a6e94195a7 100644
--- a/doc/api/groups.md
+++ b/doc/api/groups.md
@@ -9,13 +9,13 @@ Parameters:
 
 | Attribute | Type | Required | Description |
 | --------- | ---- | -------- | ----------- |
-| `skip_groups` | array of integers | no | Skip the group IDs passes |
-| `all_available` | boolean | no | Show all the groups you have access to |
-| `search` | string | no | Return list of authorized groups matching the search criteria |
+| `skip_groups` | array of integers | no | Skip the group IDs passed |
+| `all_available` | boolean | no | Show all the groups you have access to (defaults to `false` for authenticated users) |
+| `search` | string | no | Return the list of authorized groups matching the search criteria |
 | `order_by` | string | no | Order groups by `name` or `path`. Default is `name` |
 | `sort` | string | no | Order groups in `asc` or `desc` order. Default is `asc` |
 | `statistics` | boolean | no | Include group statistics (admins only) |
-| `owned` | boolean | no | Limit by groups owned by the current user |
+| `owned` | boolean | no | Limit to groups owned by the current user |
 
 ```
 GET /groups
@@ -74,6 +74,53 @@ GET /groups?statistics=true
 
 You can search for groups by name or path, see below.
 
+You can filter by [custom attributes](custom_attributes.md) with:
+
+```
+GET /groups?custom_attributes[key]=value&custom_attributes[other_key]=other_value
+```
+
+## List a groups's subgroups
+
+Get a list of visible direct subgroups in this group.
+When accessed without authentication, only public groups are returned.
+
+Parameters:
+
+| Attribute | Type | Required | Description |
+| --------- | ---- | -------- | ----------- |
+| `id` | integer/string | yes | The ID or [URL-encoded path of the group](README.md#namespaced-path-encoding) of the parent group |
+| `skip_groups` | array of integers | no | Skip the group IDs passed |
+| `all_available` | boolean | no | Show all the groups you have access to (defaults to `false` for authenticated users) |
+| `search` | string | no | Return the list of authorized groups matching the search criteria |
+| `order_by` | string | no | Order groups by `name` or `path`. Default is `name` |
+| `sort` | string | no | Order groups in `asc` or `desc` order. Default is `asc` |
+| `statistics` | boolean | no | Include group statistics (admins only) |
+| `owned` | boolean | no | Limit to groups owned by the current user |
+
+```
+GET /groups/:id/subgroups
+```
+
+```json
+[
+  {
+    "id": 1,
+    "name": "Foobar Group",
+    "path": "foo-bar",
+    "description": "An interesting group",
+    "visibility": "public",
+    "lfs_enabled": true,
+    "avatar_url": "http://gitlab.example.com/uploads/group/avatar/1/foo.jpg",
+    "web_url": "http://gitlab.example.com/groups/foo-bar",
+    "request_access_enabled": false,
+    "full_name": "Foobar Group",
+    "full_path": "foo-bar",
+    "parent_id": 123
+  }
+]
+```
+
 ## List a group's projects
 
 Get a list of projects in this group. When accessed without authentication, only
diff --git a/doc/api/merge_requests.md b/doc/api/merge_requests.md
index 50a971102fb..b2e4b6d0955 100644
--- a/doc/api/merge_requests.md
+++ b/doc/api/merge_requests.md
@@ -15,6 +15,11 @@ given state (`opened`, `closed`, or `merged`) or all of them (`all`).
 The pagination parameters `page` and `per_page` can be used to
 restrict the list of merge requests.
 
+**Note**: the `changes_count` value in the response is a string, not an
+integer. This is because when an MR has too many changes to display and store,
+it will be capped at 1,000. In that case, the API will return the string
+`"1000+"` for the changes count.
+
 ```
 GET /merge_requests
 GET /merge_requests?state=opened
@@ -53,6 +58,8 @@ Parameters:
     "project_id": 3,
     "title": "test1",
     "state": "opened",
+    "created_at": "2017-04-29T08:46:00Z",
+    "updated_at": "2017-04-29T08:46:00Z",
     "upvotes": 0,
     "downvotes": 0,
     "author": {
@@ -92,6 +99,7 @@ Parameters:
     "sha": "8888888888888888888888888888888888888888",
     "merge_commit_sha": null,
     "user_notes_count": 1,
+    "changes_count": "1",
     "should_remove_source_branch": true,
     "force_remove_source_branch": false,
     "web_url": "http://example.com/example/example/merge_requests/1",
@@ -130,6 +138,11 @@ will be the same. In the case of a merge request from a fork,
 `target_project_id` and `project_id` will be the same and
 `source_project_id` will be the fork project's ID.
 
+**Note**: the `changes_count` value in the response is a string, not an
+integer. This is because when an MR has too many changes to display and store,
+it will be capped at 1,000. In that case, the API will return the string
+`"1000+"` for the changes count.
+
 Parameters:
 
 | Attribute           | Type           | Required | Description                                                                                                                    |
@@ -159,6 +172,8 @@ Parameters:
     "project_id": 3,
     "title": "test1",
     "state": "opened",
+    "created_at": "2017-04-29T08:46:00Z",
+    "updated_at": "2017-04-29T08:46:00Z",
     "upvotes": 0,
     "downvotes": 0,
     "author": {
@@ -198,6 +213,7 @@ Parameters:
     "sha": "8888888888888888888888888888888888888888",
     "merge_commit_sha": null,
     "user_notes_count": 1,
+    "changes_count": "1",
     "should_remove_source_branch": true,
     "force_remove_source_branch": false,
     "web_url": "http://example.com/example/example/merge_requests/1",
@@ -234,6 +250,8 @@ Parameters:
   "project_id": 3,
   "title": "test1",
   "state": "merged",
+  "created_at": "2017-04-29T08:46:00Z",
+  "updated_at": "2017-04-29T08:46:00Z",
   "upvotes": 0,
   "downvotes": 0,
   "author": {
@@ -274,6 +292,7 @@ Parameters:
   "sha": "8888888888888888888888888888888888888888",
   "merge_commit_sha": "9999999999999999999999999999999999999999",
   "user_notes_count": 1,
+  "changes_count": "1",
   "should_remove_source_branch": true,
   "force_remove_source_branch": false,
   "web_url": "http://example.com/example/example/merge_requests/1",
@@ -386,6 +405,7 @@ Parameters:
   "sha": "8888888888888888888888888888888888888888",
   "merge_commit_sha": null,
   "user_notes_count": 1,
+  "changes_count": "1",
   "should_remove_source_branch": true,
   "force_remove_source_branch": false,
   "web_url": "http://example.com/example/example/merge_requests/1",
@@ -480,6 +500,7 @@ POST /projects/:id/merge_requests
   "sha": "8888888888888888888888888888888888888888",
   "merge_commit_sha": null,
   "user_notes_count": 0,
+  "changes_count": "1",
   "should_remove_source_branch": true,
   "force_remove_source_branch": false,
   "web_url": "http://example.com/example/example/merge_requests/1",
@@ -565,6 +586,7 @@ Must include at least one non-required attribute from above.
   "sha": "8888888888888888888888888888888888888888",
   "merge_commit_sha": null,
   "user_notes_count": 1,
+  "changes_count": "1",
   "should_remove_source_branch": true,
   "force_remove_source_branch": false,
   "web_url": "http://example.com/example/example/merge_requests/1",
@@ -670,6 +692,7 @@ Parameters:
   "sha": "8888888888888888888888888888888888888888",
   "merge_commit_sha": "9999999999999999999999999999999999999999",
   "user_notes_count": 1,
+  "changes_count": "1",
   "should_remove_source_branch": true,
   "force_remove_source_branch": false,
   "web_url": "http://example.com/example/example/merge_requests/1",
@@ -747,6 +770,7 @@ Parameters:
   "sha": "8888888888888888888888888888888888888888",
   "merge_commit_sha": null,
   "user_notes_count": 1,
+  "changes_count": "1",
   "should_remove_source_branch": true,
   "force_remove_source_branch": false,
   "web_url": "http://example.com/example/example/merge_requests/1",
@@ -822,7 +846,8 @@ Example response when the GitLab issue tracker is used:
       "created_at" : "2016-01-04T15:31:51.081Z",
       "iid" : 6,
       "labels" : [],
-      "user_notes_count": 1
+      "user_notes_count": 1,
+      "changes_count": "1"
    },
 ]
 ```
@@ -1077,6 +1102,7 @@ Example response:
     "sha": "8888888888888888888888888888888888888888",
     "merge_commit_sha": null,
     "user_notes_count": 7,
+    "changes_count": "1",
     "should_remove_source_branch": true,
     "force_remove_source_branch": false,
     "web_url": "http://example.com/example/example/merge_requests/1"
diff --git a/doc/api/pages_domains.md b/doc/api/pages_domains.md
index 51962595e33..50685f335f7 100644
--- a/doc/api/pages_domains.md
+++ b/doc/api/pages_domains.md
@@ -4,6 +4,31 @@ Endpoints for connecting custom domain(s) and TLS certificates in [GitLab Pages]
 
 The GitLab Pages feature must be enabled to use these endpoints. Find out more about [administering](../administration/pages/index.md) and [using](../user/project/pages/index.md) the feature.
 
+## List all pages domains
+
+Get a list of all pages domains. The user must have admin permissions.
+
+```http
+GET /pages/domains
+```
+
+```bash
+curl --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/pages/domains
+```
+
+```json
+[
+  {
+    "domain": "ssl.domain.example",
+    "url": "https://ssl.domain.example",
+    "certificate": {
+      "expired": false,
+      "expiration": "2020-04-12T14:32:00.000Z"
+    }
+  }
+]
+```
+
 ## List pages domains
 
 Get a list of project pages domains. The user must have permissions to view pages domains.
diff --git a/doc/api/projects.md b/doc/api/projects.md
index 07331d05231..5a403f7593a 100644
--- a/doc/api/projects.md
+++ b/doc/api/projects.md
@@ -192,6 +192,12 @@ GET /projects
 ]
 ```
 
+You can filter by [custom attributes](custom_attributes.md) with:
+
+```
+GET /projects?custom_attributes[key]=value&custom_attributes[other_key]=other_value
+```
+
 ## List user projects
 
 Get a list of visible projects for the given user. When accessed without
diff --git a/doc/api/services.md b/doc/api/services.md
index e642ec964de..08df26db3ec 100644
--- a/doc/api/services.md
+++ b/doc/api/services.md
@@ -490,6 +490,41 @@ Remove all previously JIRA settings from a project.
 DELETE /projects/:id/services/jira
 ```
 
+## Kubernetes
+
+Kubernetes / Openshift integration
+
+### Create/Edit Kubernetes service
+
+Set Kubernetes service for a project.
+
+```
+PUT /projects/:id/services/kubernetes
+```
+
+Parameters:
+
+- `namespace` (**required**) - The Kubernetes namespace to use
+- `api_url` (**required**) - The URL to the Kubernetes cluster API, e.g., https://kubernetes.example.com
+- `token` (**required**) - The service token to authenticate against the Kubernetes cluster with
+- `ca_pem` (optional) - A custom certificate authority bundle to verify the Kubernetes cluster with (PEM format)
+
+### Delete Kubernetes service
+
+Delete Kubernetes service for a project.
+
+```
+DELETE /projects/:id/services/kubernetes
+```
+
+### Get Kubernetes service settings
+
+Get Kubernetes service settings for a project.
+
+```
+GET /projects/:id/services/kubernetes
+```
+
 ## Slack slash commands
 
 Ability to receive slash commands from a Slack chat instance.
@@ -572,7 +607,7 @@ Parameters:
 | Attribute | Type | Required | Description |
 | --------- | ---- | -------- | ----------- |
 | `token` | string | yes | The Mattermost token |
-
+| `username` | string | no | The username to use to post the message |
 
 ### Delete Mattermost slash command service
 
diff --git a/doc/development/README.md b/doc/development/README.md
index 0cafc112b6b..6892838be7f 100644
--- a/doc/development/README.md
+++ b/doc/development/README.md
@@ -22,6 +22,7 @@ comments: false
 
 - [UX guide](ux_guide/index.md) for building GitLab with existing CSS styles and elements
 - [Frontend guidelines](fe_guide/index.md)
+- [Emoji guide](fe_guide/emojis.md)
 
 ## Backend guides
 
@@ -37,6 +38,7 @@ comments: false
 - [Gotchas](gotchas.md) to avoid
 - [Issue and merge requests state models](object_state_models.md)
 - [How to dump production data to staging](db_dump.md)
+- [Working with the GitHub importer](github_importer.md)
 
 ## Performance guides
 
@@ -69,6 +71,7 @@ comments: false
 - [Iterating tables in batches](iterating_tables_in_batches.md)
 - [Ordering table columns](ordering_table_columns.md)
 - [Verifying database capabilities](verifying_database_capabilities.md)
+- [Database Debugging and Troubleshooting](database_debugging.md)
 
 ## Testing guides
 
diff --git a/doc/development/database_debugging.md b/doc/development/database_debugging.md
new file mode 100644
index 00000000000..50eb8005b44
--- /dev/null
+++ b/doc/development/database_debugging.md
@@ -0,0 +1,55 @@
+# Database Debugging and Troubleshooting
+
+This section is to help give some copy-pasta you can use as a reference when you
+run into some head-banging database problems.
+
+An easy first step is to search for your error in Slack or google "GitLab <my error>".
+
+---
+
+Available `RAILS_ENV`
+
+ - `production` (generally not for your main GDK db, but you may need this for e.g. omnibus)
+ - `development` (this is your main GDK db)
+ - `test` (used for tests like rspec and spinach)
+
+
+## Nuke everything and start over
+
+If you just want to delete everything and start over with an empty DB (~1 minute):
+
+ - `bundle exec rake db:reset RAILS_ENV=development`
+
+If you just want to delete everything and start over with dummy data (~40 minutes). This also does `db:reset` and runs DB-specific migrations:
+
+ - `bundle exec rake dev:setup RAILS_ENV=development`
+
+If your test DB is giving you problems, it is safe to nuke it because it doesn't contain important data:
+
+ - `bundle exec rake db:reset RAILS_ENV=test`
+
+## Migration wrangling
+
+ - `bundle exec rake db:migrate RAILS_ENV=development`: Execute any pending migrations that you may have picked up from a MR
+ - `bundle exec rake db:migrate:status RAILS_ENV=development`: Check if all migrations are `up` or `down`
+ - `bundle exec rake db:migrate:down VERSION=20170926203418 RAILS_ENV=development`: Tear down a migration
+ - `bundle exec rake db:migrate:up VERSION=20170926203418 RAILS_ENV=development`: Setup a migration
+ - `bundle exec rake db:migrate:redo VERSION=20170926203418 RAILS_ENV=development`: Re-run a specific migration
+
+
+## Manually access the database
+
+Access the database via one of these commands (they all get you to the same place)
+
+```
+gdk psql -d gitlabhq_development
+bundle exec rails dbconsole RAILS_ENV=development
+bundle exec rails db RAILS_ENV=development
+```
+
+ - `\q`: Quit/exit
+ - `\dt`: List all tables
+ - `\d+ issues`: List columns for `issues` table
+ - `CREATE TABLE board_labels();`: Create a table called `board_labels`
+ - `SELECT * FROM schema_migrations WHERE version = '20170926203418';`: Check if a migration was run
+ - `DELETE FROM schema_migrations WHERE version = '20170926203418';`: Manually remove a migration
diff --git a/doc/development/fe_guide/dropdowns.md b/doc/development/fe_guide/dropdowns.md
new file mode 100644
index 00000000000..e1660ac5caa
--- /dev/null
+++ b/doc/development/fe_guide/dropdowns.md
@@ -0,0 +1,38 @@
+# Dropdowns
+
+
+## How to style a bootstrap dropdown
+1. Use the HTML structure provided by the [docs][bootstrap-dropdowns]
+1. Add a specific class to the top level `.dropdown` element
+    
+    
+    ```Haml
+    .dropdown.my-dropdown
+      %button{ type: 'button', data: { toggle: 'dropdown' }, 'aria-haspopup': true, 'aria-expanded': false }
+        %span.dropdown-toggle-text
+          Toggle Dropdown
+        = icon('chevron-down')
+    
+      %ul.dropdown-menu
+        %li
+          %a
+            item!
+    ```
+
+    Or use the helpers
+    ```Haml
+    .dropdown.my-dropdown
+      = dropdown_toggle('Toogle!', { toggle: 'dropdown' })
+      = dropdown_content
+        %li
+          %a
+            item!
+    ```
+
+1. Include the mixin in CSS
+
+    ```SCSS
+    @include new-style-dropdown('.my-dropdown ');
+    ```
+
+[bootstrap-dropdowns]: https://getbootstrap.com/docs/3.3/javascript/#dropdowns
diff --git a/doc/development/fe_guide/emojis.md b/doc/development/fe_guide/emojis.md
new file mode 100644
index 00000000000..38794c47965
--- /dev/null
+++ b/doc/development/fe_guide/emojis.md
@@ -0,0 +1,27 @@
+# Emojis
+
+GitLab supports native unicode emojis and fallsback to image-based emojis selectively
+when your platform does not support it.
+
+# How to update Emojis
+
+ 1. Update the `gemojione` gem
+ 1. Update `fixtures/emojis/index.json` from [Gemojione](https://github.com/jonathanwiesel/gemojione/blob/master/config/index.json).
+    In the future, we could grab the file directly from the gem.
+    We should probably make a PR on the Gemojione project to get access to
+    all emojis after being parsed or just a raw path to the `json` file itself.
+ 1. Ensure [`emoji-unicode-version`](https://www.npmjs.com/package/emoji-unicode-version)
+    is up to date with the latest version.
+ 1. Run `bundle exec rake gemojione:aliases`
+ 1. Run `bundle exec rake gemojione:digests`
+ 1. Run `bundle exec rake gemojione:sprite`
+ 1. Ensure new sprite sheets generated for 1x and 2x
+    - `app/assets/images/emoji.png`
+    - `app/assets/images/emoji@2x.png`
+ 1. Ensure you see new individual images copied into `app/assets/images/emoji/`
+ 1. Ensure you can see the new emojis and their aliases in the GFM Autocomplete
+ 1. Ensure you can see the new emojis and their aliases in the award emoji menu
+ 1. You might need to add new emoji unicode support checks and rules for platforms
+    that do not support a certain emoji and we need to fallback to an image.
+    See `app/assets/javascripts/emoji/support/is_emoji_unicode_supported.js`
+    and `app/assets/javascripts/emoji/support/unicode_support_map.js`
diff --git a/doc/development/fe_guide/icons.md b/doc/development/fe_guide/icons.md
index a76e978bd26..cef62618a3c 100644
--- a/doc/development/fe_guide/icons.md
+++ b/doc/development/fe_guide/icons.md
@@ -29,7 +29,7 @@ Please use the following function inside JS to render an icon :
 
 All Icons and Illustrations are managed in the [gitlab-svgs](https://gitlab.com/gitlab-org/gitlab-svgs) repository which is added as a dev-dependency.
 
-To upgrade to a new SVG Sprite version run `yarn upgrade https://gitlab.com/gitlab-org/gitlab-svgs` and then run `yarn run svg`. This task will copy the svg sprite and all illustrations in the correct folders.
+To upgrade to a new SVG Sprite version run `yarn upgrade @gitlab-org/gitlab-svgs` and then run `yarn run svg`. This task will copy the svg sprite and all illustrations in the correct folders.
 
 # SVG Illustrations
 
diff --git a/doc/development/fe_guide/index.md b/doc/development/fe_guide/index.md
index 8f956681693..73a03c07812 100644
--- a/doc/development/fe_guide/index.md
+++ b/doc/development/fe_guide/index.md
@@ -77,6 +77,8 @@ Vue resource specific practices and gotchas.
 ## [Icons](icons.md)
 How we use SVG for our Icons.
 
+## [Dropdowns](dropdowns.md)
+How we use dropdowns.
 ---
 
 ## Style Guides
diff --git a/doc/development/file_storage.md b/doc/development/file_storage.md
new file mode 100644
index 00000000000..cf00e24e11a
--- /dev/null
+++ b/doc/development/file_storage.md
@@ -0,0 +1,49 @@
+# File Storage in GitLab
+
+We use the [CarrierWave] gem to handle file upload, store and retrieval.
+
+There are many places where file uploading is used, according to contexts:
+
+* System
+  - Instance Logo (logo visible in sign in/sign up pages)
+  - Header Logo (one displayed in the navigation bar)
+* Group
+  - Group avatars
+* User
+  - User avatars
+  - User snippet attachments
+* Project
+  - Project avatars
+  - Issues/MR Markdown attachments
+  - Issues/MR Legacy Markdown attachments
+  - CI Build Artifacts
+  - LFS Objects
+
+
+## Disk storage
+
+GitLab started saving everything on local disk. While directory location changed from previous versions,
+they are still not 100% standardized. You can see them below:
+
+| Description                           | In DB? | Relative path                                               | Uploader class         | model_type |
+| ------------------------------------- | ------ | ----------------------------------------------------------- | ---------------------- | ---------- |
+| Instance logo                         | yes    | uploads/-/system/appearance/logo/:id/:filename              | `AttachmentUploader`   | Appearance |
+| Header logo                           | yes    | uploads/-/system/appearance/header_logo/:id/:filename       | `AttachmentUploader`   | Appearance |
+| Group avatars                         | yes    | uploads/-/system/group/avatar/:id/:filename                 | `AvatarUploader`       | Group      |
+| User avatars                          | yes    | uploads/-/system/user/avatar/:id/:filename                  | `AvatarUploader`       | User       |
+| User snippet attachments              | yes    | uploads/-/system/personal_snippet/:id/:random_hex/:filename | `PersonalFileUploader` | Snippet    |
+| Project avatars                       | yes    | uploads/-/system/project/avatar/:id/:filename               | `AvatarUploader`       | Project    |
+| Issues/MR Markdown attachments        | yes    | uploads/:project_path_with_namespace/:random_hex/:filename  | `FileUploader`         | Project    |
+| Issues/MR Legacy Markdown attachments | no     | uploads/-/system/note/attachment/:id/:filename              | `AttachmentUploader`   | Note       |
+| CI Artifacts (CE)                     | yes    | shared/artifacts/:year_:month/:project_id/:id               | `ArtifactUploader`     | Ci::Build  |
+| LFS Objects  (CE)                     | yes    | shared/lfs-objects/:hex/:hex/:object_hash                   | `LfsObjectUploader`    | LfsObject  |
+
+CI Artifacts and LFS Objects behave differently in CE and EE. In CE they inherit the `GitlabUploader`
+while in EE they inherit the `ObjectStoreUploader` and store files in and S3 API compatible object store.
+
+In the case of Issues/MR Markdown attachments, there is a different approach using the [Hashed Storage] layout,
+instead of basing the path into a mutable variable `:project_path_with_namespace`, it's possible to use the
+hash of the project ID instead, if project migrates to the new approach (introduced in 10.2).
+
+[CarrierWave]: https://github.com/carrierwaveuploader/carrierwave
+[Hashed Storage]: ../administration/repository_storage_types.md
diff --git a/doc/development/github_importer.md b/doc/development/github_importer.md
new file mode 100644
index 00000000000..0d558583bb8
--- /dev/null
+++ b/doc/development/github_importer.md
@@ -0,0 +1,209 @@
+# Working with the GitHub importer
+
+In GitLab 10.2 a new version of the GitHub importer was introduced. This new
+importer performs its work in parallel using Sidekiq, greatly reducing the time
+necessary to import GitHub projects into a GitLab instance.
+
+The GitHub importer offers two different types of importers: a sequential
+importer and a parallel importer. The Rake task `import:github` uses the
+sequential importer, while everything else uses the parallel importer. The
+difference between these two importers is quite simple: the sequential importer
+does all work in a single thread, making it more useful for debugging purposes
+or Rake tasks. The parallel importer on the other hand uses Sidekiq.
+
+## Requirements
+
+* GitLab CE 10.2.0 or newer.
+* Sidekiq workers that process the `github_importer` and
+  `github_importer_advance_stage` queues (this is enabled by default).
+* Octokit (used for interacting with the GitHub API)
+
+## Code structure
+
+The importer's codebase is broken up into the following directories:
+
+* `lib/gitlab/github_import`: this directory contains most of the code such as
+  the classes used for importing resources.
+* `app/workers/gitlab/github_import`: this directory contains the Sidekiq
+  workers.
+* `app/workers/concerns/gitlab/github_import`: this directory contains a few
+  modules reused by the various Sidekiq workers.
+
+## Architecture overview
+
+When a GitHub project is imported we schedule and execute a job for the
+`RepositoryImportworker` worker as all other importers. However, unlike other
+importers we don't immediately perform the work necessary. Instead work is
+divided into separate stages, with each stage consisting out of a set of Sidekiq
+jobs that are executed. Between every stage a job is scheduled that periodically
+checks if all work of the current stage is completed, advancing the import
+process to the next stage when this is the case. The worker handling this is
+called `Gitlab::GithubImport::AdvanceStageWorker`.
+
+## Stages
+
+### 1. RepositoryImportWorker
+
+This worker will kick off the import process by simply scheduling a job for the
+next worker.
+
+### 2. Stage::ImportRepositoryWorker
+
+This worker will import the repository and wiki, scheduling the next stage when
+done.
+
+### 3. Stage::ImportBaseDataWorker
+
+This worker will import base data such as labels, milestones, and releases. This
+work is done in a single thread since it can be performed fast enough that we
+don't need to perform this work in parallel.
+
+### 4. Stage::ImportPullRequestsWorker
+
+This worker will import all pull requests. For every pull request a job for the
+`Gitlab::GithubImport::ImportPullRequestWorker` worker is scheduled.
+
+### 5. Stage::ImportIssuesAndDiffNotesWorker
+
+This worker will import all issues and pull request comments. For every issue we
+schedule a job for the `Gitlab::GithubImport::ImportIssueWorker` worker. For
+pull request comments we instead schedule jobs for the
+`Gitlab::GithubImport::DiffNoteImporter` worker.
+
+This worker processes both issues and diff notes in parallel so we don't need to
+schedule a separate stage and wait for the previous one to complete.
+
+Issues are imported separately from pull requests because only the "issues" API
+includes labels for both issue and pull requests. Importing issues and setting
+label links in the same worker removes the need for performing a separate crawl
+through the API data, reducing the number of API calls necessary to import a
+project.
+
+### 6. Stage::ImportNotesWorker
+
+This worker imports regular comments for both issues and pull requests. For
+every comment we schedule a job for the
+`Gitlab::GithubImport::ImportNoteWorker` worker.
+
+Regular comments have to be imported at the end since the GitHub API used
+returns comments for both issues and pull requests. This means we have to wait
+for all issues and pull requests to be imported before we can import regular
+comments.
+
+### 7. Stage::FinishImportWorker
+
+This worker will wrap up the import process by performing some housekeeping
+(such as flushing any caches) and by marking the import as completed.
+
+## Advancing stages
+
+Advancing stages is done in one of two ways:
+
+1. Scheduling the worker for the next stage directly.
+2. Scheduling a job for `Gitlab::GithubImport::AdvanceStageWorker` which will
+   advance the stage when all work of the current stage has been completed.
+
+The first approach should only be used by workers that perform all their work in
+a single thread, while `AdvanceStageWorker` should be used for everything else.
+
+The way `AdvanceStageWorker` works is fairly simple. When scheduling a job it
+will be given a project ID, a list of Redis keys, and the name of the next
+stage. The Redis keys (produced by `Gitlab::JobWaiter`) are used to check if the
+currently running stage has been completed or not. If the stage has not yet been
+completed `AdvanceStageWorker` will reschedule itself. Once a stage finishes
+`AdvanceStageworker` will refresh the import JID (more on this below) and
+schedule the worker of the next stage.
+
+To reduce the number of `AdvanceStageWorker` jobs scheduled this worker will
+briefly wait for jobs to complete before deciding what the next action should
+be. For small projects this may slow down the import process a bit, but it will
+also reduce pressure on the system as a whole.
+
+## Refreshing import JIDs
+
+GitLab includes a worker called `StuckImportJobsWorker` that will periodically
+run and mark project imports as failed if they have been running for more than
+15 hours. For GitHub projects this poses a bit of a problem: importing large
+projects could take several hours depending on how often we hit the GitHub rate
+limit (more on this below), but we don't want `StuckImportJobsWorker` to mark
+our import as failed because of this.
+
+To prevent this from happening we periodically refresh the expiration time of
+the import process. This works by storing the JID of the import job in the
+database, then refreshing this JID's TTL at various stages throughout the import
+process. This is done by calling `Project#refresh_import_jid_expiration`. By
+refreshing this TTL we can ensure our import does not get marked as failed so
+long we're still performing work.
+
+## GitHub rate limit
+
+GitHub has a rate limit of 5 000 API calls per hour. The number of requests
+necessary to import a project is largely dominated by the number of unique users
+involved in a project (e.g. issue authors). Other data such as issue pages
+and comments typically only requires a few dozen requests to import.  This is
+because we need the Email address of users in order to map them to GitLab users.
+
+We handle this by doing the following:
+
+1. Once we hit the rate limit all jobs will automatically reschedule themselves
+   in such a way that they are not executed until the rate limit has been reset.
+2. We cache the mapping of GitHub users to GitLab users in Redis.
+
+More information on user caching can be found below.
+
+## Caching user lookups
+
+When mapping GitHub users to GitLab users we need to (in the worst case)
+perform:
+
+1. One API call to get the user's Email address.
+2. Two database queries to see if a corresponding GitLab user exists. One query
+   will try to find the user based on the GitHub user ID, while the second query
+   is used to find the user using their GitHub Email address.
+
+Because this process is quite expensive we cache the result of these lookups in
+Redis. For every user looked up we store three keys:
+
+1. A Redis key mapping GitHub usernames to their Email addresses.
+2. A Redis key mapping a GitHub Email addresses to a GitLab user ID.
+3. A Redis key mapping a GitHub user ID to GitLab user ID.
+
+There are two types of lookups we cache:
+
+1. A positive lookup, meaning we found a GitLab user ID.
+2. A negative lookup, meaning we didn't find a GitLab user ID. Caching this
+   prevents us from performing the same work for users that we know don't exist
+   in our GitLab database.
+
+The expiration time of these keys is 24 hours. When retrieving the cache of a
+positive lookups we refresh the TTL automatically. The TTL of false lookups is
+never refreshed.
+
+Because of this caching layer it's possible newly registered GitLab accounts
+won't be linked to their corresponding GitHub accounts. This however will sort
+itself out once the cached keys expire.
+
+The user cache lookup is shared across projects. This means that the more
+projects get imported the fewer GitHub API calls will be needed.
+
+The code for this resides in:
+
+* `lib/gitlab/github_import/user_finder.rb`
+* `lib/gitlab/github_import/caching.rb`
+
+## Mapping labels and milestones
+
+To reduce pressure on the database we do not query it when setting labels and
+milestones on issues and merge requests. Instead we cache this data when we
+import labels and milestones, then we reuse this cache when assigning them to
+issues/merge requests. Similar to the user lookups these cache keys are expired
+automatically after 24 hours of not being used.
+
+Unlike the user lookup caches these label and milestone caches are scoped to the
+project that is being imported.
+
+The code for this resides in:
+
+* `lib/gitlab/github_import/label_finder.rb`
+* `lib/gitlab/github_import/milestone_finder.rb`
+* `lib/gitlab/github_import/caching.rb`
diff --git a/doc/development/i18n/externalization.md b/doc/development/i18n/externalization.md
index 7c38260406d..4b65a0f4a35 100644
--- a/doc/development/i18n/externalization.md
+++ b/doc/development/i18n/externalization.md
@@ -110,7 +110,7 @@ You can mark that content for translation with:
 In JavaScript we added the `__()` (double underscore parenthesis) function
 for translations.
 
-### Updating the PO files with the new content
+## Updating the PO files with the new content
 
 Now that the new content is marked for translation, we need to update the PO
 files with the following command:
@@ -119,23 +119,20 @@ files with the following command:
 bundle exec rake gettext:find
 ```
 
-This command will update the `locale/**/gitlab.edit.po` file with the
-new content that the parser has found.
+This command will update the `locale/gitlab.pot` file with the newly externalized
+strings and remove any strings that aren't used anymore. You should check this
+file in. Once the changes are on master, they will be picked up by
+[Crowdin](http://translate.gitlab.com) and be presented for translation.
 
-New translations will be added with their default content and will be marked
-fuzzy. To use the translation, look for the `#, fuzzy` mention in `gitlab.edit.po`
-and remove it.
+The command also updates the translation files for each language: `locale/*/gitlab.po`
+These changes can be discarded, the languange files will be updated by Crowdin
+automatically.
 
-We need to make sure we remove the `fuzzy` translations before generating the
-`locale/**/gitlab.po` file. When they aren't removed, the resulting `.po` will
-be treated as a binary file which could overwrite translations that were merged
-before the new translations.
+Discard all of them at once like this:
 
-When we are just preparing a page to be translated, but not actually adding any
-translations. There's no need to generate `.po` files.
-
-Translations that aren't used in the source code anymore will be marked with
-`~#`; these can be removed to keep our translation files clutter-free.
+```sh
+git checkout locale/*/gitlab.po
+```
 
 ### Validating PO files
 
diff --git a/doc/development/licensing.md b/doc/development/licensing.md
index 902b1c74a42..274923c2d43 100644
--- a/doc/development/licensing.md
+++ b/doc/development/licensing.md
@@ -4,11 +4,11 @@ GitLab CE is licensed under the terms of the MIT License. GitLab EE is licensed
 
 ## Automated Testing
 
-In order to comply with the terms the libraries we use are licensed under, we have to make sure to check new gems for compatible licenses whenever they're added. To automate this process, we use the [license_finder][license_finder] gem by Pivotal. It runs every time a new commit is pushed and verifies that all gems in the bundle use a license that doesn't conflict with the licensing of either GitLab Community Edition or GitLab Enterprise Edition.
+In order to comply with the terms the libraries we use are licensed under, we have to make sure to check new gems for compatible licenses whenever they're added. To automate this process, we use the [license_finder][license_finder] gem by Pivotal. It runs every time a new commit is pushed and verifies that all gems and node modules in the bundle use a license that doesn't conflict with the licensing of either GitLab Community Edition or GitLab Enterprise Edition.
 
-There are some limitations with the automated testing, however. CSS and JavaScript libraries, as well as any Ruby libraries not included by way of Bundler, must be verified manually and independently. Take care whenever one such library is used, as automated tests won't catch problematic licenses from them.
+There are some limitations with the automated testing, however. CSS, JavaScript, or Ruby libraries which are not included by way of Bundler, NPM, or Yarn (for instance those manually copied into our source tree in the `vendor` directory), must be verified manually and independently. Take care whenever one such library is used, as automated tests won't catch problematic licenses from them.
 
-Some gems may not include their license information in their `gemspec` file. These won't be detected by License Finder, and will have to be verified manually.
+Some gems may not include their license information in their `gemspec` file, and some node modules may not include their license information in their `package.json` file. These won't be detected by License Finder, and will have to be verified manually.
 
 ### License Finder commands
 
diff --git a/doc/development/limit_ee_conflicts.md b/doc/development/limit_ee_conflicts.md
index 899be9eae4b..ba82babb38a 100644
--- a/doc/development/limit_ee_conflicts.md
+++ b/doc/development/limit_ee_conflicts.md
@@ -336,6 +336,12 @@ Blocks of code that are EE-specific should be moved to partials as much as
 possible to avoid conflicts with big chunks of HAML code that that are not fun
 to resolve when you add the indentation in the equation.
 
+### Assets
+
+#### gitlab-svgs
+
+Conflicts in `app/assets/images/icons.json` or `app/assets/images/icons.svg` can be resolved simply by regenerating those assets with [`yarn run svg`](https://gitlab.com/gitlab-org/gitlab-svgs).
+
 ---
 
 [Return to Development documentation](README.md)
diff --git a/doc/development/rake_tasks.md b/doc/development/rake_tasks.md
index bfd80aab6a4..4773b6773e8 100644
--- a/doc/development/rake_tasks.md
+++ b/doc/development/rake_tasks.md
@@ -122,6 +122,15 @@ they can be easily inspected.
 bundle exec rake services:doc
 ```
 
+## Updating Emoji Aliases
+
+To update the Emoji aliases file (used for Emoji autocomplete) you must run the
+following:
+
+```
+bundle exec rake gemojione:aliases
+```
+
 ## Updating Emoji Digests
 
 To update the Emoji digests file (used for Emoji autocomplete) you must run the
@@ -131,6 +140,7 @@ following:
 bundle exec rake gemojione:digests
 ```
 
+
 This will update the file `fixtures/emojis/digests.json` based on the currently
 available Emoji.
 
diff --git a/doc/development/ux_guide/components.md b/doc/development/ux_guide/components.md
index fa31c496b30..16a811dbc74 100644
--- a/doc/development/ux_guide/components.md
+++ b/doc/development/ux_guide/components.md
@@ -10,6 +10,7 @@
 * [Tables](#tables)
 * [Blocks](#blocks)
 * [Panels](#panels)
+* [Dialog modals](#dialog-modals)
 * [Alerts](#alerts)
 * [Forms](#forms)
 * [Search box](#search-box)
@@ -254,6 +255,38 @@ Skeleton loading can replace any existing UI elements for the period in which th
 
 ---
 
+## Dialog modals
+
+Dialog modals are only used for having a conversation and confirmation with the user. The user is not able to access the features on the main page until closing the modal.
+
+### Usage
+
+* When the action is irreversible, dialog modals provide the details and confirm with the user before they take an advanced action.
+* When the action will affect privacy or authorization, dialog modals provide advanced information and confirm with the user.
+
+### Style
+
+* Dialog modals contain the header, body, and actions.
+  * **Header(1):** The header title is a question instead of a descriptive phrase.
+  * **Body(2):** The content in body should never be ambiguous and unclear. It provides specific information.
+  * **Actions(3):** Contains a affirmative action, a dismissive action, and an extra action. The order of actions from left to right: Dismissive action → Extra action → Affirmative action
+* Confirmations regarding labels should keep labeling styling.
+* References to commits, branches, and tags should be **monospaced**.
+
+![layout-modal](img/modals-layout-for-modals.png)
+
+### Placement
+
+* Dialog modals should always be the center of the screen horizontally and be positioned **72px** from the top.
+
+| Dialog with 2 actions | Dialog with 3 actions | Special confirmation |
+| --------------------- | --------------------- | -------------------- |
+| ![two-actions](img/modals-general-confimation-dialog.png) | ![three-actions](img/modals-three-buttons.png) | ![spcial-confirmation](img/modals-special-confimation-dialog.png) |
+
+> TODO: Special case for dialog modal.
+
+---
+
 ## Panels
 
 > TODO: Catalog how we are currently using panels and rationalize how they relate to alerts
diff --git a/doc/development/ux_guide/img/modals-general-confimation-dialog.png b/doc/development/ux_guide/img/modals-general-confimation-dialog.png
new file mode 100644
index 00000000000..00a17374a0b
--- /dev/null
+++ b/doc/development/ux_guide/img/modals-general-confimation-dialog.png
diff --git a/doc/development/ux_guide/img/modals-layout-for-modals.png b/doc/development/ux_guide/img/modals-layout-for-modals.png
new file mode 100644
index 00000000000..6c7bc09e750
--- /dev/null
+++ b/doc/development/ux_guide/img/modals-layout-for-modals.png
diff --git a/doc/development/ux_guide/img/modals-special-confimation-dialog.png b/doc/development/ux_guide/img/modals-special-confimation-dialog.png
new file mode 100644
index 00000000000..bf1e56326c5
--- /dev/null
+++ b/doc/development/ux_guide/img/modals-special-confimation-dialog.png
diff --git a/doc/development/ux_guide/img/modals-three-buttons.png b/doc/development/ux_guide/img/modals-three-buttons.png
new file mode 100644
index 00000000000..519439e64e4
--- /dev/null
+++ b/doc/development/ux_guide/img/modals-three-buttons.png
diff --git a/doc/install/installation.md b/doc/install/installation.md
index 2a004152d5e..4efe911b778 100644
--- a/doc/install/installation.md
+++ b/doc/install/installation.md
@@ -299,9 +299,9 @@ sudo usermod -aG redis git
 ### Clone the Source
 
     # Clone GitLab repository
-    sudo -u git -H git clone https://gitlab.com/gitlab-org/gitlab-ce.git -b 10-1-stable gitlab
+    sudo -u git -H git clone https://gitlab.com/gitlab-org/gitlab-ce.git -b 10-2-stable gitlab
 
-**Note:** You can change `10-1-stable` to `master` if you want the *bleeding edge* version, but never install master on a production server!
+**Note:** You can change `10-2-stable` to `master` if you want the *bleeding edge* version, but never install master on a production server!
 
 ### Configure It
 
diff --git a/doc/raketasks/import.md b/doc/raketasks/import.md
index 2b305cb5c99..97e9b36d1a6 100644
--- a/doc/raketasks/import.md
+++ b/doc/raketasks/import.md
@@ -3,49 +3,47 @@
 ## Notes
 
 - The owner of the project will be the first admin
-- The groups will be created as needed
+- The groups will be created as needed, including subgroups
 - The owner of the group will be the first admin
 - Existing projects will be skipped
+- The existing Git repos will be moved from disk (removed from the original path)
 
 ## How to use
 
-### Create a new folder inside the git repositories path. This will be the name of the new group.
+### Create a new folder to import your Git repositories from.
 
-- For omnibus-gitlab, it is located at: `/var/opt/gitlab/git-data/repositories` by default, unless you changed
-it in the `/etc/gitlab/gitlab.rb` file.
-- For installations from source, it is usually located at: `/home/git/repositories` or you can see where
-your repositories are located by looking at `config/gitlab.yml` under the `repositories => storages` entries
-(you'll usually use the `default` storage path to start).
-
-New folder needs to have git user ownership and read/write/execute access for git user and its group:
+The new folder needs to have git user ownership and read/write/execute access for git user and its group:
 
 ```
-sudo -u git mkdir /var/opt/gitlab/git-data/repositories/new_group
+sudo -u git mkdir /var/opt/gitlab/git-data/repository-import-<date>/new_group
 ```
 
-If you are using an installation from source, replace `/var/opt/gitlab/git-data`
-with `/home/git`.
-
 ### Copy your bare repositories inside this newly created folder:
 
+- Any .git repositories found on any of the subfolders will be imported as projects
+- Groups will be created as needed, these could be nested folders. Example:
+
+If we copy the repos to `/var/opt/gitlab/git-data/repository-import-<date>`, and repo A needs to be under the groups G1 and G2, it will
+have to be created under those folders: `/var/opt/gitlab/git-data/repository-import-<date>/G1/G2/A.git`.
+
+
 ```
-sudo cp -r /old/git/foo.git /var/opt/gitlab/git-data/repositories/new_group/
+sudo cp -r /old/git/foo.git /var/opt/gitlab/git-data/repository-import-<date>/new_group/
 
 # Do this once when you are done copying git repositories
-sudo chown -R git:git /var/opt/gitlab/git-data/repositories/new_group/
+sudo chown -R git:git /var/opt/gitlab/git-data/repository-import-<date>
 ```
 
 `foo.git` needs to be owned by the git user and git users group.
 
-If you are using an installation from source, replace `/var/opt/gitlab/git-data`
-with `/home/git`.
+If you are using an installation from source, replace `/var/opt/gitlab/` with `/home/git`.
 
 ### Run the command below depending on your type of installation:
 
 #### Omnibus Installation
 
 ```
-$ sudo gitlab-rake gitlab:import:repos
+$ sudo gitlab-rake gitlab:import:repos['/var/opt/gitlab/git-data/repository-import-<date>']
 ```
 
 #### Installation from source
@@ -54,16 +52,21 @@ Before running this command you need to change the directory to where your GitLa
 
 ```
 $ cd /home/git/gitlab
-$ sudo -u git -H bundle exec rake gitlab:import:repos RAILS_ENV=production
+$ sudo -u git -H bundle exec rake gitlab:import:repos['/var/opt/gitlab/git-data/repository-import-<date>'] RAILS_ENV=production
 ```
 
 #### Example output
 
 ```
-Processing abcd.git
+Processing /var/opt/gitlab/git-data/repository-import-1/a/b/c/blah.git
+ * Using namespace: a/b/c
+ * Created blah (a/b/c/blah)
+ * Skipping repo  /var/opt/gitlab/git-data/repository-import-1/a/b/c/blah.wiki.git
+Processing /var/opt/gitlab/git-data/repository-import-1/abcd.git
  * Created abcd (abcd.git)
-Processing group/xyz.git
- * Created Group group (2)
+Processing /var/opt/gitlab/git-data/repository-import-1/group/xyz.git
+ * Using namespace: group (2)
  * Created xyz (group/xyz.git)
+ * Skipping repo /var/opt/gitlab/git-data/repository-import-1/@shared/a/b/abcd.git
 [...]
 ```
diff --git a/doc/topics/autodevops/index.md b/doc/topics/autodevops/index.md
index 1cfdabac248..28308fc905c 100644
--- a/doc/topics/autodevops/index.md
+++ b/doc/topics/autodevops/index.md
@@ -321,7 +321,7 @@ Auto DevOps uses [Helm](https://helm.sh/) to deploy your application to Kubernet
 You can override the Helm chart used by bundling up a chart into your project
 repo or by specifying a project variable:
 
-- **Bundled chart** - If your project has a `./charts` directory with a `Chart.yaml`
+- **Bundled chart** - If your project has a `./chart` directory with a `Chart.yaml`
   file in it, Auto DevOps will detect the chart and use it instead of the [default
   one](https://gitlab.com/charts/charts.gitlab.io/tree/master/charts/auto-deploy-app).
   This can be a great way to control exactly how your application is deployed.
diff --git a/doc/university/glossary/README.md b/doc/university/glossary/README.md
index c6a91c8d5c2..076fbf6f710 100644
--- a/doc/university/glossary/README.md
+++ b/doc/university/glossary/README.md
@@ -23,6 +23,10 @@ A Microsoft-based [directory service](https://msdn.microsoft.com/en-us/library/b
 
 Building and [delivering software](http://agilemethodology.org/) in phases/parts rather than trying to build everything at once then delivering to the user/client. The latter is known as the WaterFall model.
 
+### Amazon RDS
+
+External reference: <http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/CHAP_Storage.html>
+
 ### Application Lifecycle Management (ALM)
 
 The entire product lifecycle management process for an application, from requirements management, development, and testing until deployment. GitLab has [advantages](https://docs.google.com/presentation/d/1vCU-NbZWz8NTNK8Vu3y4zGMAHb5DpC8PE5mHtw1PWfI/edit#slide=id.g72f2e4906_2_288) over both legacy and modern ALM tools.
@@ -68,7 +72,7 @@ A branch is a parallel version of a repository. This allows you to work on the r
 
 Having your own logo on [your GitLab instance login page](https://docs.gitlab.com/ee/customization/branded_login_page.html) instead of the GitLab logo.
 
-### Job triggers
+### Job triggers (Build Triggers)
 These protect your code base against breaks, for instance when a team is working on the same project. Learn about [setting up](https://docs.gitlab.com/ce/ci/triggers/README.html) job triggers.
 
 ### CEPH
@@ -109,15 +113,15 @@ Atlassian's product for collaboration on documents and projects.
 
 ### Continuous Delivery
 
-A [software engineering approach](https://about.gitlab.com/2016/08/05/continuous-integration-delivery-and-deployment-with-gitlab/) in which continuous integration, automated testing, and automated deployment capabilities allow software to be developed and deployed rapidly, reliably and repeatedly with minimal human intervention. Still, the deployment to production is defined strategically and triggered manually.
+A [software engineering approach](https://about.gitlab.com/2016/08/05/continuous-integration-delivery-and-deployment-with-gitlab/) in which continuous integration, automated testing, and automated deployment capabilities allow software to be developed and deployed rapidly, reliably and repeatedly with minimal human intervention. Still, the deployment to production is defined strategically and triggered manually. [Amazon moves toward continuous delivery](https://www.youtube.com/watch?v=esEFaY0FDKc)
 
 ### Continuous Deployment
 
-A [software development practice](https://about.gitlab.com/2016/08/05/continuous-integration-delivery-and-deployment-with-gitlab/) in which every code change goes through the entire pipeline and is put into production automatically, resulting in many production deployments every day. It does everything that Continuous Delivery does, but the process is fully automated, there's no human intervention at all.
+A [software development practice](https://about.gitlab.com/2016/08/05/continuous-integration-delivery-and-deployment-with-gitlab/) in which every code change goes through the entire pipeline and is put into production automatically, resulting in many production deployments every day. It does everything that Continuous Delivery does, but the process is fully automated, there's no human intervention at all. [The difference between Continuous Delivery and Continuous Integration.](https://www.youtube.com/watch?v=igwFj8PPSnw)
 
 ### Continuous Integration
 
-A [software development practice](https://about.gitlab.com/2016/08/05/continuous-integration-delivery-and-deployment-with-gitlab/) in which you build and test software every time a developer pushes code to the application, and it happens several times a day.
+A [software development practice](https://about.gitlab.com/2016/08/05/continuous-integration-delivery-and-deployment-with-gitlab/) in which you build and test software every time a developer pushes code to the application, and it happens several times a day. [Thoughtworks discusses continuous integration.](https://www.thoughtworks.com/continuous-integration)
 
 ### Contributor
 
@@ -127,6 +131,10 @@ Term used for a person contributing to an open source project.
 
 A [natural evolution](https://about.gitlab.com/2016/09/14/gitlab-live-event-recap/) of software development that carries a conversation across functional groups throughout the development process, enabling developers to track the full path of development in a cohesive and intuitive way. ConvDev accelerates the development lifecycle by fostering collaboration and knowledge sharing from idea to production.
 
+### Cycle Analytics
+
+See <https://gitlab.com/gitlab-org/gitlab-ce/issues/22458>
+
 ### Cycle Time
 
 The time it takes to move from [idea to production](https://about.gitlab.com/2016/08/05/continuous-integration-delivery-and-deployment-with-gitlab/#from-idea-to-production-with-gitlab).
@@ -135,6 +143,10 @@ The time it takes to move from [idea to production](https://about.gitlab.com/201
 
 Atlassian product for High Availability.
 
+### Dependencies
+
+As in "specify [dependencies](https://gitlab.com/gitlab-org/gitlab-ce/issues/14728) between stages."
+
 ### Deploy Keys
 
 A [SSH key](https://docs.gitlab.com/ce/gitlab-basics/create-your-ssh-keys.html)stored on your server that grants access to a single GitLab repository. This is used by a GitLab runner to clone a project's code so that tests can be run against the checked out code.
@@ -151,15 +163,17 @@ The intersection of software engineering, quality assurance, and technology oper
 
 The difference between two commits, or saved changes. This will also be shown visually after the changes.
 
-#### Directory
+### Directory
 
 A folder used for storing multiple files.
 
 ### Docker Container Registry
 
-A [feature](https://docs.gitlab.com/ce/user/project/container_registry.html) of GitLab projects. Containers wrap up a piece of software in a complete filesystem that contains everything it needs to run: code, runtime, system tools, system libraries – anything you can install on a server. This guarantees that it will always run the same, regardless of the environment it is running in.
+A [feature](https://docs.gitlab.com/ce/user/project/container_registry.html) of [GitLab projects](https://about.gitlab.com/2016/05/23/gitlab-container-registry/). Containers wrap up a piece of software in a complete filesystem that contains everything it needs to run: code, runtime, system tools, system libraries – anything you can install on a server. This guarantees that it will always run the same, regardless of the environment it is running in.
 
-### Dynamic Environment
+### Dynamic Environment (review apps)
+
+### EC2 Instance
 
 ### ElasticSearch
 
@@ -167,10 +181,26 @@ Elasticsearch is a flexible, scalable and powerful search service. When [enabled
 
 ### Emacs
 
+External reference: <https://www.masteringemacs.org/article/mastering-key-bindings-emacs>
+
+### First Byte
+
+External reference: <https://en.wikipedia.org/wiki/Time_To_First_Byte>
+
+First Byte (sometimes referred to as time to first byte or [TTFB](https://en.wikipedia.org/wiki/Time_To_First_Byte)) measures the time between making a request and receiving the first byte of information in return. As a result, First Byte encompasses everything that is the backend as well as network transit issues. It differs from [_Speed Index_](#speed-index) mostly by frontend related issues which are included in Speed Index such as javascript loading, page rendering, and so on.
+
 ### Fork
 
 Your [own copy](https://docs.gitlab.com/ce/workflow/forking_workflow.html) of a repository that allows you to make changes to the repository without affecting the original.
 
+### Funnel, or: TOFU, MOFU, BOFU
+
+External reference: [Blog post](https://www.weidert.com/whole_brain_marketing_blog/bid/113688/ToFu-MoFu-BoFu-Serving-Up-The-Right-Content-for-Lead-Nurturing)
+
+TOFU: top of funnel
+MOFU: middle of funnel
+BOFU:  bottom of funnel
+
 ### Gerrit
 
 A code review [tool](https://www.gerritcodereview.com/) built on top of Git.
@@ -183,6 +213,8 @@ A [git attributes file](https://git-scm.com/docs/gitattributes) is a simple text
 
 [Scripts](https://git-scm.com/book/en/v2/Customizing-Git-Git-Hooks) you can use to trigger actions at certain points.
 
+Difference between a [webhook](#webhooks) and a git hook: a git hook is local to its repo (usually) while a webhook is not (it can make API or http calls). So for example if you want your linter to fire before you commit, you can set that up with a git hook. If the linter fails, the commit does not go through. A git hook _can_ be configured to go beyond its repo, e.g. by having it make an API call.
+
 ### GitHost.io
 
 A single-tenant solution that provides GitLab CE or EE as a managed service. GitLab Inc. is responsible for installing, updating, hosting, and backing up customers' own private and secure GitLab instance.
@@ -211,9 +243,20 @@ Our free SaaS for public and private repositories.
 
 Allows you to replicate your GitLab instance to other geographical locations as a read-only fully operational version. It [can be used](https://docs.gitlab.com/ee/gitlab-geo/README.html) for cloning and fetching projects, in addition to reading any data. This will make working with large repositories over large distances much faster.
 
+### GitLab High Availability
+
+### GitLab Master Plan
+
+Related blog post: <https://about.gitlab.com/2016/09/13/gitlab-master-plan/>.
+
 ### GitLab Pages
+
 These allow you to [create websites](https://gitlab.com/help/pages/README.md) for your GitLab projects, groups, or user account.
 
+### GitLab Runner
+
+Related project: <https://gitlab.com/gitlab-org/gitlab-runner>
+
 ### Gitolite
 
 An [access layer](https://git-scm.com/book/en/v1/Git-on-the-Server-Gitolite) that sits on top of Git. Users are granted access to repos via a simple config file. As an admin, you only need the users' public SSH key and a username.
@@ -226,6 +269,10 @@ A web-based hosting service for projects using Git. It was acquired by GitLab an
 
 An open source programming [language](https://golang.org/).
 
+### Gogs
+
+External reference: <https://gogs.io/>
+
 ### GUI/ Git GUI
 
 A portable [graphical interface](https://git-scm.com/docs/git-gui) to Git that allows users to make changes to their repository by making new commits, amending existing ones, creating branches, performing local merges, and fetching/pushing to remote repositories.
@@ -256,7 +303,7 @@ A [tool](https://docs.gitlab.com/ee/integration/external-issue-tracker.html) use
 
 ### Jenkins
 
-An Open Source CI tool written using the Java programming language. [Jenkins](https://jenkins-ci.org/) does the same job as GitLab CI, Bamboo, and Travis CI. It is extremely popular.
+An Open Source CI tool written using the Java programming language. [Jenkins](https://jenkins-ci.org/) does the same job as GitLab CI, Bamboo, and Travis CI. It is extremely popular. Related [documentation](https://docs.gitlab.com/ee/integration/jenkins.html). 
 
 ### Jira
 
@@ -290,6 +337,10 @@ GitLab [integrates](https://docs.gitlab.com/ce/administration/auth/ldap.html) wi
 
 Allows you to synchronize the members of a GitLab group with one or more LDAP groups.
 
+### Lint
+
+Static code analysis for our various file types. For example, we use [scss-lint](https://github.com/brigade/scss-lint) to ensure that a consistent code styling is respected. Similar tools: rubocop / eslint.
+
 ### Load Balancer
 
 A [device](https://en.wikipedia.org/wiki/Load_balancing_(computing)) that distributes network or application traffic across multiple servers.
@@ -330,6 +381,10 @@ Takes changes from one branch, and [applies them](https://git-scm.com/docs/git-m
 
 [Arises](https://about.gitlab.com/2016/09/06/resolving-merge-conflicts-from-the-gitlab-ui/) when a merge can't be performed cleanly between two versions of the same file.
 
+#### Merge Request
+
+[Takes changes](https://docs.gitlab.com/ce/gitlab-basics/add-merge-request.html) from one branch, and applies them into another branch.
+
 ### Meteor
 
 A [platform](https://www.meteor.com) for building javascript apps.
@@ -350,6 +405,14 @@ A type of software license. It lets people do anything with your code with prope
 
 A free disaster recovery [software](https://help.ubuntu.com/community/MondoMindi).
 
+#### Mount
+
+External reference: 
+
+As stated on the [wikipedia page](https://en.wikipedia.org/wiki/Mount_(Unix)), "Mounting makes file systems, files, directories, devices and special files available for use and available to the user."
+
+For example, we have NFS servers where the _git files_  reside. In order for a worker node to "see" or "use" the git files, the NFS server needs to be _mounted_ on the worker; that is, the worker needs to know that the NFS server exists and how to connect to it. Think of it as getting a shared drive to show up in your Finder (on Mac) or Explorer (on Windows).
+
 ### MySQL
 
 A relational [database](http://www.mysql.com/) owned by Oracle. Currently only supported if you are using EE.
@@ -360,7 +423,7 @@ A set of symbols that are used to organize objects of various kinds so that thes
 
 ### Nginx
 
-A web [server](https://www.nginx.com/resources/wiki/) (pronounced "engine x"). It can act as a reverse proxy server for HTTP, HTTPS, SMTP, POP3, and IMAP protocols, as well as a load balancer and an HTTP cache.
+A web [server](https://www.nginx.com/resources/wiki/) (pronounced "engine x"). [It can act]((https://gitlab.com/gitlab-org/omnibus-gitlab/blob/master/doc/settings/nginx.md) as a reverse proxy server for HTTP, HTTPS, SMTP, POP3, and IMAP protocols, as well as a load balancer and an HTTP cache.
 
 ### OAuth
 
@@ -380,7 +443,11 @@ GitLab's [business model](https://about.gitlab.com/2016/07/20/gitlab-is-open-cor
 
 ### Open Source Software
 
-Software for which the original source code is freely [available](https://opensource.org/docs/osd) and may be redistributed and modified. GitLab prioritizes open source [stewardship](https://about.gitlab.com/2016/01/11/being-a-good-open-source-steward/).
+Software for which the original source code is freely [available](https://opensource.org/docs/osd) and may be redistributed and modified. GitLab prioritizes open source [stewardship](https://about.gitlab.com/2016/01/11/being-a-good-open-source-steward/). Including to providing access to the source code, open source software must comply with a number of criteria, among them free distribution and no discrimination against persons, groups, or fields of endeavor.
+
+#### Open Source Stewardship
+
+[Related blog post](https://about.gitlab.com/2016/01/11/being-a-good-open-source-steward/). 
 
 ### Owner
 
@@ -430,6 +497,8 @@ A popular DevOps [automation tool](https://puppet.com/product/how-puppet-works).
 
 Git [command](https://git-scm.com/docs/git-push) to send commits from the local repository to the remote repository. Read about [advanced push rules](https://gitlab.com/help/pages/README.md) in GitLab.
 
+### Raketasks
+
 ### RE Read Only
 
 Permissions to see a file and its contents, but not change it.
@@ -438,10 +507,24 @@ Permissions to see a file and its contents, but not change it.
 
 In addition to the merge, the [rebase](https://git-scm.com/book/en/v2/Git-Branching-Rebasing) is a main way to integrate changes from one branch into another.
 
+### Regression
+
+A regression is something that used to work one way in the last release and then we made a **breaking change** and it no longer works the same way.
+
+_or_
+
+A regression is defined as a change that results in a negative impact on the functionality of an existing feature due to recent changes, i.e. the latest release.
+
+### Remote mirroring
+
 ### (Git) Repository
 
 A directory where Git [has been initiatlized](https://git-scm.com/book/en/v2/Git-Basics-Getting-a-Git-Repository) to start version controlling your files. The history of your work is stored here. A remote repository is not on your machine, but usually online (like on GitLab.com, for instance). The main remote repository is usually called "Origin."
 
+##### Remote repository
+
+A [repository](https://about.gitlab.com/2015/05/18/simple-words-for-a-gitlab-newbie/) that is not-on-your-machine, so it's anything that is not your computer. Usually, it is online, GitLab.com for instance. The main remote repository is usually called “Origin”.
+
 ### Requirements management
 
 Gives your distributed teams a single shared repository to collaborate and share requirements, understand their relationship to tests, and evaluate linked defects. It includes multiple, preconfigured requirement types.
@@ -474,7 +557,11 @@ Software that is hosted centrally and accessed on-demand (i.e. whenever you want
 
 This term is often used by people when they mean "Version Control."
 
-## Scrum
+#### SCLAU
+
+Abbreviation for SQO Count [Large And Up](https://about.gitlab.com/handbook/sales/#market-segmentation). This is the number of opportunities in large and strategic organizations passed from marketing to sales.
+
+### Scrum 
 
 An Agile [framework](https://www.scrum.org/Resources/What-is-Scrum) designed to typically help complete complex software projects. It's made up of several parts: product requirements backlog, sprint planning, sprint (development), sprint review, and retrospec (analyzing the sprint). The goal is to end up with potentially shippable products.
 
@@ -484,7 +571,9 @@ The board used to track the status and progress of each of the sprint backlog it
 
 ### Shell
 
-Terminal on Mac OSX, GitBash on Windows, or Linux Terminal on Linux. You [use git]() and make changes to GitLab projects in your shell. You [use git](https://docs.gitlab.com/ce/gitlab-basics/start-using-git.html) and make changes to GitLab projects in your shell.
+Terminal on Mac OSX, GitBash on Windows, or Linux Terminal on Linux. You [use git](https://docs.gitlab.com/ce/gitlab-basics/start-using-git.html) and make changes to GitLab projects in your shell. You [use git](https://docs.gitlab.com/ce/gitlab-basics/start-using-git.html) and make changes to GitLab projects in your shell.
+
+### Shell command runner
 
 ### Single-tenant
 
@@ -494,6 +583,8 @@ The tenant purchases their own copy of the software and the software can be cust
 
 Real time messaging app for teams that is used internally by  GitLab team members. GitLab users can enable [Slack integration](https://docs.gitlab.com/ce/project_services/slack.html) to trigger push, issue, and merge request events among others.
 
+### Slash commands
+
 ### Slave Servers
 
 Also known as secondary servers, these help to spread the load over multiple machines. They also provide backups when the master/primary server crashes.
@@ -502,6 +593,10 @@ Also known as secondary servers, these help to spread the load over multiple mac
 
 Program code as typed by a computer programmer (i.e. it has not yet been compiled/translated by the computer to machine language).
 
+### Speed Index
+
+[Speed Index](https://sites.google.com/a/webpagetest.org/docs/using-webpagetest/metrics/speed-index) is "the average time at which visible parts of the page are displayed".
+
 ### SSH Key
 
 A unique identifier of a computer. It is used to identify computers without the need for a password (e.g., On GitLab I have [added the ssh key](https://docs.gitlab.com/ce/gitlab-basics/create-your-ssh-keys.html) of all my work machines so that the GitLab instance knows that it can accept code pushes and pulls from this trusted machines whose keys are I have added.)
@@ -542,6 +637,16 @@ An open source version control system. Read about [migrating from SVN](https://d
 
 [Represents](https://docs.gitlab.com/ce/api/tags.html) a version of a particular branch at a moment in time.
 
+### Tenancy
+
+#### Multi-tenant
+
+A [multi-tenant](http://whatis.techtarget.com/definition/multi-tenancy) GitLab instance can have any number of customers - such as companies or groups of users using it. GitLab.com is an example of a multi-tenant GitLab instance.
+
+#### Single-tenant
+
+A [single-tenant](http://searchcloudapplications.techtarget.com/definition/single-tenancy) GitLab instance has only one customer - such as a company - using it. On premise GitLab instances are almost exclusively single-tenant.
+
 ### Tool Stack
 
 The set of tools used in a process to achieve a common outcome (e.g. set of tools used in Application Lifecycle Management).
@@ -550,9 +655,17 @@ The set of tools used in a process to achieve a common outcome (e.g. set of tool
 
 An open source project management and bug tracking web [application](https://trac.edgewall.org/).
 
+### True-Up licensing model
+
+### Ubuntu
+
 ### Untracked files
 
-New files that Git has not [been told](https://git-scm.com/book/en/v2/Git-Basics-Recording-Changes-to-the-Repository) to track previously.
+New files that Git has not [been told](https://git-scm.com/book/en/v2/Git-Basics-Recording-Changes-to-the-Repository) to track previously. Add them by using the command "git add [file path]"
+
+### Upstream repository vs. GitLab repository
+
+[External conversation](https://news.ycombinator.com/item?id=12487112)
 
 ### User
 
@@ -560,11 +673,11 @@ Anyone interacting with the software.
 
 ### Version Control Software (VCS)
 
-Version control is a system that records changes to a file or set of files over time so that you can recall specific versions later. VCS [has evolved](https://docs.google.com/presentation/d/16sX7hUrCZyOFbpvnrAFrg6tVO5_yT98IgdAqOmXwBho/edit#slide=id.gd69537a19_0_32) from local version control systems, to centralized version control systems, to the present distributed version control systems like Git, Mercurial, Bazaar, and Darcs.
+Version control is a system that records changes to a file or set of files over time so that you can recall specific versions later. VCS [has evolved](https://docs.google.com/presentation/d/16sX7hUrCZyOFbpvnrAFrg6tVO5_yT98IgdAqOmXwBho/edit#slide=id.gd69537a19_0_32) from local version control systems, to centralized version control systems, to the present [distributed version control systems](https://en.wikipedia.org/wiki/Distributed_version_control) like Git, Mercurial, Bazaar, and Darcs. If any server dies, and these systems were collaborating via it, any of the client repositories can be copied back up to the server to restore it.
 
 ### Virtual Private Cloud (VPC)
 
-An on demand configurable pool of shared computing resources allocated within a public cloud environment, providing some isolation between the different users using the resources. GitLab users need to create a new Amazon VPC in order to [setup High Availability](https://docs.gitlab.com/ce/university/high-availability/aws/).
+A [VPC](https://docs.gitlab.com/ce/university/glossary/README.html#virtual-private-cloud-vpc) is an on demand configurable pool of shared computing resources allocated within a public cloud environment, providing some isolation between the different users using the resources. GitLab users need to create a new Amazon VPC in order to [setup High Availability](https://docs.gitlab.com/ce/university/high-availability/aws/).
 
 ### Virtual private server (VPS)
 
@@ -572,7 +685,7 @@ A [virtual machine](https://en.wikipedia.org/wiki/Virtual_private_server) sold a
 
 ### VM Instance
 
-In object-oriented programming, an [instance](http://stackoverflow.com/questions/20461907/what-is-meaning-of-instance-in-programming) is a specific realization of any object. An object may be varied in a number of ways. Each realized variation of that object is an instance. Therefore, a VM instance is an instance of a virtual machine, which is an emulation of a computer system.
+In object-oriented programming, an [instance](http://stackoverflow.com/questions/20461907/what-is-meaning-of-instance-in-programming) is a specific realization of any [object](https://cloud.google.com/compute/docs/instances/). An object may be varied in a number of ways. Each realized variation of that object is an instance. Therefore, a VM instance is an instance of a virtual machine, which is an emulation of a computer system.
 
 ### Waterfall
 
@@ -586,6 +699,10 @@ A way for for an app to [provide](https://docs.gitlab.com/ce/user/project/integr
 
 A [website/system](http://www.wiki.com/) that allows for collaborative editing of its content by the users. In programming, wikis usually contain documentation of how to use the software.
 
+### Working area
+
+Files that have been modified but are not committed. Check them by using the command "git status". 
+
 ### Working Tree
 
 [Consists of files](http://stackoverflow.com/questions/3689838/difference-between-head-working-tree-index-in-git) that you are currently working on.
diff --git a/doc/update/10.1-to-10.2.md b/doc/update/10.1-to-10.2.md
new file mode 100644
index 00000000000..9e0d8f79522
--- /dev/null
+++ b/doc/update/10.1-to-10.2.md
@@ -0,0 +1,360 @@
+---
+comments: false
+---
+
+# From 10.1 to 10.2
+
+Make sure you view this update guide from the tag (version) of GitLab you would
+like to install. In most cases this should be the highest numbered production
+tag (without rc in it). You can select the tag in the version dropdown at the
+top left corner of GitLab (below the menu bar).
+
+If the highest number stable branch is unclear please check the
+[GitLab Blog](https://about.gitlab.com/blog/archives.html) for installation
+guide links by version.
+
+### 1. Stop server
+
+```bash
+sudo service gitlab stop
+```
+
+### 2. Backup
+
+```bash
+cd /home/git/gitlab
+
+sudo -u git -H bundle exec rake gitlab:backup:create RAILS_ENV=production
+```
+
+### 3. Update Ruby
+
+NOTE: GitLab 9.0 and higher only support Ruby 2.3.x and dropped support for Ruby 2.1.x. Be
+sure to upgrade your interpreter if necessary.
+
+You can check which version you are running with `ruby -v`.
+
+Download and compile Ruby:
+
+```bash
+mkdir /tmp/ruby && cd /tmp/ruby
+curl --remote-name --progress https://cache.ruby-lang.org/pub/ruby/2.3/ruby-2.3.5.tar.gz
+echo '3247e217d6745c27ef23bdc77b6abdb4b57a118f  ruby-2.3.5.tar.gz' | shasum -c - && tar xzf ruby-2.3.5.tar.gz
+cd ruby-2.3.5
+./configure --disable-install-rdoc
+make
+sudo make install
+```
+
+Install Bundler:
+
+```bash
+sudo gem install bundler --no-ri --no-rdoc
+```
+
+### 4. Update Node
+
+GitLab now runs [webpack](http://webpack.js.org) to compile frontend assets and
+it has a minimum requirement of node v4.3.0.
+
+You can check which version you are running with `node -v`. If you are running
+a version older than `v4.3.0` you will need to update to a newer version.  You
+can find instructions to install from community maintained packages or compile
+from source at the nodejs.org website.
+
+<https://nodejs.org/en/download/>
+
+
+Since 8.17, GitLab requires the use of yarn `>= v0.17.0` to manage
+JavaScript dependencies.
+
+```bash
+curl --silent --show-error https://dl.yarnpkg.com/debian/pubkey.gpg | sudo apt-key add -
+echo "deb https://dl.yarnpkg.com/debian/ stable main" | sudo tee /etc/apt/sources.list.d/yarn.list
+sudo apt-get update
+sudo apt-get install yarn
+```
+
+More information can be found on the [yarn website](https://yarnpkg.com/en/docs/install).
+
+### 5. Update Go
+
+NOTE: GitLab 9.2 and higher only supports Go 1.8.3 and dropped support for Go
+1.5.x through 1.7.x. Be sure to upgrade your installation if necessary.
+
+You can check which version you are running with `go version`.
+
+Download and install Go:
+
+```bash
+# Remove former Go installation folder
+sudo rm -rf /usr/local/go
+
+curl --remote-name --progress https://storage.googleapis.com/golang/go1.8.3.linux-amd64.tar.gz
+echo '1862f4c3d3907e59b04a757cfda0ea7aa9ef39274af99a784f5be843c80c6772  go1.8.3.linux-amd64.tar.gz' | shasum -a256 -c - && \
+  sudo tar -C /usr/local -xzf go1.8.3.linux-amd64.tar.gz
+sudo ln -sf /usr/local/go/bin/{go,godoc,gofmt} /usr/local/bin/
+rm go1.8.3.linux-amd64.tar.gz
+```
+
+### 6. Get latest code
+
+```bash
+cd /home/git/gitlab
+
+sudo -u git -H git fetch --all
+sudo -u git -H git checkout -- db/schema.rb # local changes will be restored automatically
+sudo -u git -H git checkout -- locale
+```
+
+For GitLab Community Edition:
+
+```bash
+cd /home/git/gitlab
+
+sudo -u git -H git checkout 10-2-stable
+```
+
+OR
+
+For GitLab Enterprise Edition:
+
+```bash
+cd /home/git/gitlab
+
+sudo -u git -H git checkout 10-2-stable-ee
+```
+
+### 7. Update gitlab-shell
+
+```bash
+cd /home/git/gitlab-shell
+
+sudo -u git -H git fetch --all --tags
+sudo -u git -H git checkout v$(</home/git/gitlab/GITLAB_SHELL_VERSION)
+sudo -u git -H bin/compile
+```
+
+### 8. Update gitlab-workhorse
+
+Install and compile gitlab-workhorse. GitLab-Workhorse uses
+[GNU Make](https://www.gnu.org/software/make/).
+If you are not using Linux you may have to run `gmake` instead of
+`make` below.
+
+```bash
+cd /home/git/gitlab-workhorse
+
+sudo -u git -H git fetch --all --tags
+sudo -u git -H git checkout v$(</home/git/gitlab/GITLAB_WORKHORSE_VERSION)
+sudo -u git -H make
+```
+
+### 9. Update Gitaly
+
+#### New Gitaly configuration options required
+
+In order to function Gitaly needs some additional configuration information. Below we assume you installed Gitaly in `/home/git/gitaly` and GitLab Shell in `/home/git/gitlab-shell`.
+
+```shell
+echo '
+[gitaly-ruby]
+dir = "/home/git/gitaly/ruby"
+
+[gitlab-shell]
+dir = "/home/git/gitlab-shell"
+' | sudo -u git tee -a /home/git/gitaly/config.toml
+```
+
+#### Check Gitaly configuration
+
+Due to a bug in the `rake gitlab:gitaly:install` script your Gitaly
+configuration file may contain syntax errors. The block name
+`[[storages]]`, which may occur more than once in your `config.toml`
+file, should be `[[storage]]` instead.
+
+```shell
+sudo -u git -H sed -i.pre-10.1 's/\[\[storages\]\]/[[storage]]/' /home/git/gitaly/config.toml
+```
+
+#### Compile Gitaly
+
+```shell
+cd /home/git/gitaly
+sudo -u git -H git fetch --all --tags
+sudo -u git -H git checkout v$(</home/git/gitlab/GITALY_SERVER_VERSION)
+sudo -u git -H make
+```
+
+### 10. Update MySQL permissions
+
+If you are using MySQL you need to grant the GitLab user the necessary
+permissions on the database:
+
+```bash
+mysql -u root -p -e "GRANT TRIGGER ON \`gitlabhq_production\`.* TO 'git'@'localhost';"
+```
+
+If you use MySQL with replication, or just have MySQL configured with binary logging,
+you will need to also run the following on all of your MySQL servers:
+
+```bash
+mysql -u root -p -e "SET GLOBAL log_bin_trust_function_creators = 1;"
+```
+
+You can make this setting permanent by adding it to your `my.cnf`:
+
+```
+log_bin_trust_function_creators=1
+```
+
+### 11. Update configuration files
+
+#### New configuration options for `gitlab.yml`
+
+There might be configuration options available for [`gitlab.yml`][yaml]. View them with the command below and apply them manually to your current `gitlab.yml`:
+
+```sh
+cd /home/git/gitlab
+
+git diff origin/10-1-stable:config/gitlab.yml.example origin/10-2-stable:config/gitlab.yml.example
+```
+
+#### Nginx configuration
+
+Ensure you're still up-to-date with the latest NGINX configuration changes:
+
+```sh
+cd /home/git/gitlab
+
+# For HTTPS configurations
+git diff origin/10-1-stable:lib/support/nginx/gitlab-ssl origin/10-2-stable:lib/support/nginx/gitlab-ssl
+
+# For HTTP configurations
+git diff origin/10-1-stable:lib/support/nginx/gitlab origin/10-2-stable:lib/support/nginx/gitlab
+```
+
+If you are using Strict-Transport-Security in your installation to continue using it you must enable it in your Nginx
+configuration as GitLab application no longer handles setting it.
+
+If you are using Apache instead of NGINX please see the updated [Apache templates].
+Also note that because Apache does not support upstreams behind Unix sockets you
+will need to let gitlab-workhorse listen on a TCP port. You can do this
+via [/etc/default/gitlab].
+
+[Apache templates]: https://gitlab.com/gitlab-org/gitlab-recipes/tree/master/web-server/apache
+[/etc/default/gitlab]: https://gitlab.com/gitlab-org/gitlab-ce/blob/10-2-stable/lib/support/init.d/gitlab.default.example#L38
+
+#### SMTP configuration
+
+If you're installing from source and use SMTP to deliver mail, you will need to add the following line
+to config/initializers/smtp_settings.rb:
+
+```ruby
+ActionMailer::Base.delivery_method = :smtp
+```
+
+See [smtp_settings.rb.sample] as an example.
+
+[smtp_settings.rb.sample]: https://gitlab.com/gitlab-org/gitlab-ce/blob/10-2-stable/config/initializers/smtp_settings.rb.sample#L13
+
+#### Init script
+
+There might be new configuration options available for [`gitlab.default.example`][gl-example]. View them with the command below and apply them manually to your current `/etc/default/gitlab`:
+
+```sh
+cd /home/git/gitlab
+
+git diff origin/10-1-stable:lib/support/init.d/gitlab.default.example origin/10-2-stable:lib/support/init.d/gitlab.default.example
+```
+
+Ensure you're still up-to-date with the latest init script changes:
+
+```bash
+cd /home/git/gitlab
+
+sudo cp lib/support/init.d/gitlab /etc/init.d/gitlab
+```
+
+For Ubuntu 16.04.1 LTS:
+
+```bash
+sudo systemctl daemon-reload
+```
+
+### 12. Install libs, migrations, etc.
+
+```bash
+cd /home/git/gitlab
+
+# MySQL installations (note: the line below states '--without postgres')
+sudo -u git -H bundle install --without postgres development test --deployment
+
+# PostgreSQL installations (note: the line below states '--without mysql')
+sudo -u git -H bundle install --without mysql development test --deployment
+
+# Optional: clean up old gems
+sudo -u git -H bundle clean
+
+# Run database migrations
+sudo -u git -H bundle exec rake db:migrate RAILS_ENV=production
+
+# Compile GetText PO files
+
+sudo -u git -H bundle exec rake gettext:compile RAILS_ENV=production
+
+# Update node dependencies and recompile assets
+sudo -u git -H bundle exec rake yarn:install gitlab:assets:clean gitlab:assets:compile RAILS_ENV=production NODE_ENV=production
+
+# Clean up cache
+sudo -u git -H bundle exec rake cache:clear RAILS_ENV=production
+```
+
+**MySQL installations**: Run through the `MySQL strings limits` and `Tables and data conversion to utf8mb4` [tasks](../install/database_mysql.md).
+
+### 13. Start application
+
+```bash
+sudo service gitlab start
+sudo service nginx restart
+```
+
+### 14. Check application status
+
+Check if GitLab and its environment are configured correctly:
+
+```bash
+cd /home/git/gitlab
+
+sudo -u git -H bundle exec rake gitlab:env:info RAILS_ENV=production
+```
+
+To make sure you didn't miss anything run a more thorough check:
+
+```bash
+cd /home/git/gitlab
+
+sudo -u git -H bundle exec rake gitlab:check RAILS_ENV=production
+```
+
+If all items are green, then congratulations, the upgrade is complete!
+
+## Things went south? Revert to previous version (10.0)
+
+### 1. Revert the code to the previous version
+
+Follow the [upgrade guide from 9.5 to 10.0](9.5-to-10.0.md), except for the
+database migration (the backup is already migrated to the previous version).
+
+### 2. Restore from the backup
+
+```bash
+cd /home/git/gitlab
+
+sudo -u git -H bundle exec rake gitlab:backup:restore RAILS_ENV=production
+```
+
+If you have more than one backup `*.tar` file(s) please add `BACKUP=timestamp_of_backup` to the command above.
+
+[yaml]: https://gitlab.com/gitlab-org/gitlab-ce/blob/10-2-stable/config/gitlab.yml.example
+[gl-example]: https://gitlab.com/gitlab-org/gitlab-ce/blob/10-2-stable/lib/support/init.d/gitlab.default.example
diff --git a/doc/user/permissions.md b/doc/user/permissions.md
index c03700a3501..b9532bf897f 100644
--- a/doc/user/permissions.md
+++ b/doc/user/permissions.md
@@ -197,6 +197,7 @@ instance and project. In addition, all admins can use the admin interface under
 |---------------------------------------|-----------------|-------------|----------|--------|
 | See commits and jobs                  | ✓               | ✓           | ✓        | ✓      |
 | Retry or cancel job                   |                 | ✓           | ✓        | ✓      |
+| Erase job artifacts and trace         |                 | ✓ [^7]      | ✓        | ✓      |
 | Remove project                        |                 |             | ✓        | ✓      |
 | Create project                        |                 |             | ✓        | ✓      |
 | Change project configuration          |                 |             | ✓        | ✓      |
@@ -261,5 +262,6 @@ only.
 [^4]: Not allowed for Guest, Reporter, Developer, Master, or Owner
 [^5]: Only if user is not external one.
 [^6]: Only if user is a member of the project.
+[^7]: Only if the build was triggered by the user
 [ce-18994]: https://gitlab.com/gitlab-org/gitlab-ce/issues/18994
 [new-mod]: project/new_ci_build_permissions_model.md
diff --git a/doc/user/profile/preferences.md b/doc/user/profile/preferences.md
index f2ad42f21fd..022d6317555 100644
--- a/doc/user/profile/preferences.md
+++ b/doc/user/profile/preferences.md
@@ -55,9 +55,10 @@ You have 6 options here that you can use for your default dashboard view:
 The project home page content setting allows you to choose what content you want to
 see on a project’s home page.
 
-You can choose between 2 options:
+You can choose between 3 options:
 
 - Show the files and the readme (default)
+- Show the readme
 - Show the project’s activity
 
 [rouge]: http://rouge.jneen.net/ "Rouge website"
diff --git a/doc/user/project/clusters/index.md b/doc/user/project/clusters/index.md
index 7d9e771f570..cf0c7c109a8 100644
--- a/doc/user/project/clusters/index.md
+++ b/doc/user/project/clusters/index.md
@@ -1,14 +1,15 @@
-# Connecting GitLab with GKE
+# Connecting GitLab with a Kubernetes cluster
 
 > [Introduced](https://gitlab.com/gitlab-org/gitlab-ce/issues/35954) in 10.1.
 
 CAUTION: **Warning:**
 The Cluster integration is currently in **Beta**.
 
-Connect your project to Google Container Engine (GKE) in a few steps.
-
 With a cluster associated to your project, you can use Review Apps, deploy your
-applications, run your pipelines, and much more in an easy way.
+applications, run your pipelines, and much more, in an easy way.
+
+Connect your project to Google Kubernetes Engine (GKE) or your own Kubernetes
+cluster in a few steps.
 
 NOTE: **Note:**
 The Cluster integration will eventually supersede the
@@ -30,36 +31,58 @@ prerequisites must be met:
 - You must have Master [permissions] in order to be able to access the **Cluster**
   page.
 
-If all of the above requirements are met, you can proceed to add a new cluster.
+If all of the above requirements are met, you can proceed to add a new GKE
+cluster.
 
 ## Adding a cluster
 
 NOTE: **Note:**
 You need Master [permissions] and above to add a cluster.
 
+There are two options when adding a new cluster; either use Google Kubernetes
+Engine (GKE) or provide the credentials to your own Kubernetes cluster.
+
 To add a new cluster:
 
-1. Navigate to your project's **CI/CD > Cluster** page.
-1. Connect your Google account if you haven't done already by clicking the
-   "Sign-in with Google" button.
-1. Fill in the requested values:
-  - **Cluster name** (required) - The name you wish to give the cluster.
-  - **GCP project ID** (required) - The ID of the project you created in your GCP
-    console that will host the Kubernetes cluster. This must **not** be confused
-    with the project name. Learn more about [Google Cloud Platform projects](https://cloud.google.com/resource-manager/docs/creating-managing-projects).
-  - **Zone** - The zone under which the cluster will be created. Read more about
-    [the available zones](https://cloud.google.com/compute/docs/regions-zones/).
-  - **Number of nodes** - The number of nodes you wish the cluster to have.
-  - **Machine type** - The machine type of the Virtual Machine instance that
-    the cluster will be based on. Read more about [the available machine types](https://cloud.google.com/compute/docs/machine-types).
-  - **Project namespace** - The unique namespace for this project. By default you
-    don't have to fill it in; by leaving it blank, GitLab will create one for you.
-1. Click the **Create cluster** button.
-
-After a few moments your cluster should be created. If something goes wrong,
+1. Navigate to your project's **CI/CD > Cluster** page
+1. If you want to let GitLab create a cluster on GKE for you, go through the
+   following steps, otherwise skip to the next one.
+    1. Click on **Create with GKE**
+    1. Connect your Google account if you haven't done already by clicking the
+       **Sign in with Google** button
+    1. Fill in the requested values:
+      - **Cluster name** (required) - The name you wish to give the cluster.
+      - **GCP project ID** (required) - The ID of the project you created in your GCP
+        console that will host the Kubernetes cluster. This must **not** be confused
+        with the project name. Learn more about [Google Cloud Platform projects](https://cloud.google.com/resource-manager/docs/creating-managing-projects).
+      - **Zone** - The [zone](https://cloud.google.com/compute/docs/regions-zones/)
+        under which the cluster will be created.
+      - **Number of nodes** - The number of nodes you wish the cluster to have.
+      - **Machine type** - The [machine type](https://cloud.google.com/compute/docs/machine-types)
+        of the Virtual Machine instance that the cluster will be based on.
+      - **Project namespace** - The unique namespace for this project. By default you
+        don't have to fill it in; by leaving it blank, GitLab will create one for you.
+1. If you want to use your own existing Kubernetes cluster, click on
+   **Add an existing cluster** and fill in the details as described in the
+   [Kubernetes integration](../integrations/kubernetes.md) documentation.
+1. Finally, click the **Create cluster** button
+
+After a few moments, your cluster should be created. If something goes wrong,
 you will be notified.
 
-Now, you can proceed to [enable the Cluster integration](#enabling-or-disabling-the-cluster-integration).
+You can now proceed to install some pre-defined applications and then
+enable the Cluster integration.
+
+## Installing applications
+
+GitLab provides a one-click install for various applications which will be
+added directly to your configured cluster. Those applications are needed for
+[Review Apps](../../../ci/review_apps/index.md) and [deployments](../../../ci/environments.md).
+
+| Application | GitLab version | Description |
+| ----------- | :------------: | ----------- |
+| [Helm Tiller](https://docs.helm.sh/) | 10.2+ | Helm is a package manager for Kubernetes and is required to install all the other applications. It will be automatically installed as a dependency when you try to install a different app. It is installed in its own pod inside the cluster which can run the `helm` CLI in a safe environment. |
+| [Ingress](https://kubernetes.io/docs/concepts/services-networking/ingress/) | 10.2+ | Ingress can provide load balancing, SSL termination and name-based virtual hosting. It acts as a web proxy for your applications and is useful if you want to use [Auto DevOps](../../../topics/autodevops/index.md) or deploy your own web apps. |
 
 ## Enabling or disabling the Cluster integration
 
diff --git a/doc/user/project/container_registry.md b/doc/user/project/container_registry.md
index 2c4dfcff4a6..394aa9209e4 100644
--- a/doc/user/project/container_registry.md
+++ b/doc/user/project/container_registry.md
@@ -27,7 +27,8 @@ to enable it.
 1. First, ask your system administrator to enable GitLab Container Registry
    following the [administration documentation](../../administration/container_registry.md).
    If you are using GitLab.com, this is enabled by default so you can start using
-   the Registry immediately.
+   the Registry immediately. Currently there is a soft (10GB) size restriction for 
+   registry on GitLab.com, as part of the [repository size limit](repository/index.html#repository-size).
 1. Go to your [project's General settings](settings/index.md#sharing-and-permissions)
    and enable the **Container Registry** feature on your project. For new
    projects this might be enabled by default. For existing projects
diff --git a/doc/user/project/img/label_priority_sort_order.png b/doc/user/project/img/label_priority_sort_order.png
new file mode 100644
index 00000000000..21c7a76a322
--- /dev/null
+++ b/doc/user/project/img/label_priority_sort_order.png
diff --git a/doc/user/project/img/labels_filter_by_priority.png b/doc/user/project/img/labels_filter_by_priority.png
deleted file mode 100644
index 419e555e709..00000000000
--- a/doc/user/project/img/labels_filter_by_priority.png
+++ /dev/null
diff --git a/doc/user/project/img/priority_sort_order.png b/doc/user/project/img/priority_sort_order.png
new file mode 100644
index 00000000000..c558ec23b0e
--- /dev/null
+++ b/doc/user/project/img/priority_sort_order.png
diff --git a/doc/user/project/import/github.md b/doc/user/project/import/github.md
index 6423beefc77..72def9d1d1d 100644
--- a/doc/user/project/import/github.md
+++ b/doc/user/project/import/github.md
@@ -24,6 +24,8 @@ constrains of a Sidekiq worker.
   - the milestones (GitLab 8.7+)
   - the labels (GitLab 8.7+)
   - the release note descriptions (GitLab 8.12+)
+  - the pull request review comments (GitLab 10.2+)
+  - the regular issue and pull request comments
 - References to pull requests and issues are preserved (GitLab 8.7+)
 - Repository public access is retained. If a repository is private in GitHub
   it will be created as private in GitLab as well.
@@ -43,10 +45,13 @@ the case the namespace is taken, the repository will be imported under the user'
 namespace that started the import process.
 
 The importer will also import branches on forks of projects related to open pull
-requests. These branches will be imported with a naming scheume similar to 
+requests. These branches will be imported with a naming scheme similar to
 GH-SHA-Username/Pull-Request-number/fork-name/branch. This may lead to a discrepency
 in branches compared to the GitHub Repository.
 
+For a more technical description and an overview of the architecture you can
+refer to [Working with the GitHub importer][gh-import-dev-docs].
+
 ## Importing your GitHub repositories
 
 The importer page is visible when you create a new project.
@@ -121,7 +126,29 @@ If you want, you can import all your GitHub projects in one go by hitting
 You can also choose a different name for the project and a different namespace,
 if you have the privileges to do so.
 
+## Making the import process go faster
+
+For large projects it may take a while to import all data. To reduce the time
+necessary you can increase the number of Sidekiq workers that process the
+following queues:
+
+* `github_importer`
+* `github_importer_advance_stage`
+
+For an optimal experience we recommend having at least 4 Sidekiq processes (each
+running a number of threads equal to the number of CPU cores) that _only_
+process these queues. We also recommend that these processes run on separate
+servers. For 4 servers with 8 cores this means you can import up to 32 objects
+(e.g. issues) in parallel.
+
+Reducing the time spent in cloning a repository can be done by increasing
+network throughput, CPU capacity, and disk performance (e.g.  by using high
+performance SSDs) of the disks that store the Git repositories (for your GitLab
+instance). Increasing the number of Sidekiq workers will _not_ reduce the time
+spent cloning repositories.
+
 [gh-import]: ../../../integration/github.md "GitHub integration"
 [gh-rake]: ../../../administration/raketasks/github_import.md "GitHub rake task"
 [gh-integration]: #authorize-access-to-your-repositories-using-the-github-integration
 [gh-token]: #authorize-access-to-your-repositories-using-a-personal-access-token
+[gh-import-dev-docs]: ../../../development/github_importer.md "Working with the GitHub importer"
diff --git a/doc/user/project/integrations/prometheus_library/kubernetes.md b/doc/user/project/integrations/prometheus_library/kubernetes.md
index 518683965e8..a6673fa2a00 100644
--- a/doc/user/project/integrations/prometheus_library/kubernetes.md
+++ b/doc/user/project/integrations/prometheus_library/kubernetes.md
@@ -13,8 +13,8 @@ integration services must be enabled.
 
 | Name | Query |
 | ---- | ----- |
-| Average Memory Usage (MB) | (sum(container_memory_usage_bytes{container_name!="POD",%{environment_filter}}) / count(container_memory_usage_bytes{container_name!="POD",%{environment_filter}})) /1024/1024 |
-| Average CPU Utilization (%) | sum(rate(container_cpu_usage_seconds_total{container_name!="POD",%{environment_filter}}[2m])) by (cpu)  * 100 |
+| Average Memory Usage (MB) | (sum(avg(container_memory_usage_bytes{container_name!="POD",environment="%{ci_environment_slug}"}) without (job))) / count(avg(container_memory_usage_bytes{container_name!="POD",environment="%{ci_environment_slug}"}) without (job)) /1024/1024 |
+| Average CPU Utilization (%) | sum(avg(rate(container_cpu_usage_seconds_total{container_name!="POD",environment="%{ci_environment_slug}"}[2m])) without (job)) * 100 |
 
 ## Configuring Prometheus to monitor for Kubernetes node metrics
 
diff --git a/doc/user/project/issue_board.md b/doc/user/project/issue_board.md
index 96a5a23ee13..8c2690ec3b2 100644
--- a/doc/user/project/issue_board.md
+++ b/doc/user/project/issue_board.md
@@ -166,12 +166,26 @@ board itself.
 
 ![Remove issue from list](img/issue_boards_remove_issue.png)
 
-## Re-ordering an issue in a list
-
-> Introduced in GitLab 9.0.
-
-Issues can be re-ordered inside of lists. This is as simple as dragging and dropping
-an issue into the order you want.
+## Issue ordering in a list
+
+When visiting a board, issues appear ordered in any list. You are able to change
+that order simply by dragging and dropping the issues. The changed order will be saved
+to the system so that anybody who visits the same board later will see the reordering,
+with some exceptions.
+
+The first time a given issue appears in any board (i.e. the first time a user
+loads a board containing that issue), it will be ordered with 
+respect to other issues in that list according to [Priority order][label-priority].
+At that point, that issue will be assigned a relative order value by the system
+representing its relative order with respect to the other issues in the list. Any time
+you drag-and-drop reorder that issue, its relative order value will change accordingly.
+Also, any time that issue appears in any board when it is loaded by a user,
+the updated relative order value will be used for the ordering. (It's only the first
+time an issue appears that it takes from the Priority order mentioned above.) This means that
+if issue `A` is drag-and-drop reordered to be above issue `B` by any user in
+a given board inside your GitLab instance, any time those two issues are subsequently
+loaded in any board in the same instance (could be a different project board or a different group board, for example), 
+that ordering will be maintained.
 
 ## Filtering issues
 
diff --git a/doc/user/project/labels.md b/doc/user/project/labels.md
index 21a2e1213ec..d7eb4bca89c 100644
--- a/doc/user/project/labels.md
+++ b/doc/user/project/labels.md
@@ -77,15 +77,32 @@ having their priority set to null.
 
 ![Prioritize labels](img/labels_prioritize.png)
 
-Now that you have labels prioritized, you can use the 'Priority' and 'Label
-priority' filters in the issues or merge requests tracker.
+Now that you have labels prioritized, you can use the 'Label priority' and 'Priority' 
+sort orders in the issues or merge requests tracker.
 
-The 'Label priority' filter puts issues with the highest priority label on top.
+In the following, everything applies to both issues and merge requests, but we'll
+refer to just issues for brevity.
 
-The 'Priority' filter sorts issues by their soonest milestone due date, then by
-label priority.
+The 'Label priority' sort order positions issues with higher priority labels
+toward the top, and issues with lower priority labels toward the bottom. A non-prioritized
+label is considered to have the lowest priority. For a given issue, we _only_ consider the
+highest priority label assigned to it in the comparison. ([We are discussing](https://gitlab.com/gitlab-org/gitlab-ce/issues/18554) 
+including all the labels in a given issue for this comparison.) Given two issues
+are equal according to this sort comparison, their relative order is equal, and 
+therefore it's not guaranteed that one will be always above the other.
+
+![Label priority sort order](img/label_priority_sort_order.png)
+
+The 'Priority' sort order comparison first considers an issue's milestone's due date,
+(if the issue is assigned a milestone and the milestone's due date exists), and then 
+secondarily considers the label priority comparison above. Sooner due dates results
+a higher sort order. If an issue doesn't have a milestone due date, it is equivalent to
+being assigned to a milestone that has a due date in the infinite future. Given two issues
+are equal according to this two-stage sort comparison, their relative order is equal, and 
+therefore it's not guaranteed that one will be always above the other.
+
+![Priority sort order](img/priority_sort_order.png)
 
-![Filter labels by priority](img/labels_filter_by_priority.png)
 
 ## Subscribe to labels
 
diff --git a/doc/user/project/members/index.md b/doc/user/project/members/index.md
index b8dd96087f1..43713855e26 100644
--- a/doc/user/project/members/index.md
+++ b/doc/user/project/members/index.md
@@ -21,7 +21,7 @@ want to add.
 
 ---
 
-Select the user and the [permission level](../../user/permissions.md)
+Select the user and the [permission level](../../permissions.md)
 that you'd like to give the user. Note that you can select more than one user.
 
 ![Give user permissions](img/add_user_give_permissions.png)
diff --git a/doc/user/project/pages/getting_started_part_one.md b/doc/user/project/pages/getting_started_part_one.md
index 453e10184f0..1e19f422d94 100644
--- a/doc/user/project/pages/getting_started_part_one.md
+++ b/doc/user/project/pages/getting_started_part_one.md
@@ -62,7 +62,7 @@ which is highly recommendable and much faster than hardcoding.
 
 If you set up a GitLab Pages project on GitLab.com,
 it will automatically be accessible under a
-[subdomain of `namespace.pages.io`](introduction.md#gitlab-pages-on-gitlab-com).
+[subdomain of `namespace.gitlab.io`](introduction.md#gitlab-pages-on-gitlab-com).
 The `namespace` is defined by your username on GitLab.com,
 or the group name you created this project under.
 
diff --git a/features/steps/project/commits/commits.rb b/features/steps/project/commits/commits.rb
index 318e054e978..c623a516c47 100644
--- a/features/steps/project/commits/commits.rb
+++ b/features/steps/project/commits/commits.rb
@@ -62,7 +62,7 @@ class Spinach::Features::ProjectCommits < Spinach::FeatureSteps
   end
 
   step 'I should see additional file lines' do
-    page.within @diff.parent do
+    page.within @diff.query_scope do
       expect(first('.new_line').text).not_to have_content "..."
     end
   end
diff --git a/fixtures/emojis/aliases.json b/fixtures/emojis/aliases.json
index e2f47db0de2..415dd5a54e0 100644
--- a/fixtures/emojis/aliases.json
+++ b/fixtures/emojis/aliases.json
@@ -339,6 +339,7 @@
    "baguette_bread":"french_bread",
    "anguished":"frowning",
    "white_frowning_face":"frowning2",
+   "rainbow_flag":"gay_pride_flag",
    "goal_net":"goal",
    "hammer_and_pick":"hammer_pick",
    "raised_hand_with_fingers_splayed":"hand_splayed",
@@ -488,6 +489,7 @@
    "slightly_smiling_face":"slight_smile",
    "sneeze":"sneezing_face",
    "speaking_head_in_silhouette":"speaking_head",
+   "left_speech_bubble":"speech_left",
    "sleuth_or_spy":"spy",
    "sleuth_or_spy_tone1":"spy_tone1",
    "sleuth_or_spy_tone2":"spy_tone2",
@@ -537,4 +539,4 @@
    "wrestling_tone4":"wrestlers_tone4",
    "wrestling_tone5":"wrestlers_tone5",
    "zipper_mouth_face":"zipper_mouth"
-}
+}
\ No newline at end of file
diff --git a/fixtures/emojis/digests.json b/fixtures/emojis/digests.json
index 589cff165f3..3c8f6426f93 100644
--- a/fixtures/emojis/digests.json
+++ b/fixtures/emojis/digests.json
@@ -1478,7 +1478,7 @@
   },
   "cartwheel_tone4": {
     "category": "activity",
-    "moji": "🤸🏾,",
+    "moji": "🤸🏾",
     "description": "person doing cartwheel tone 4",
     "unicodeVersion": "9.0",
     "digest": "8253afb672431c84e498014c30babb00b9284bec773009e79f7f06aa7108643e"
@@ -5375,6 +5375,13 @@
     "unicodeVersion": "6.0",
     "digest": "180e66f19d9285e02d0a5e859722c608206826e80323942b9938fc49d44973b1"
   },
+  "gay_pride_flag": {
+    "category": "flags",
+    "moji": "🏳🌈",
+    "description": "gay_pride_flag",
+    "unicodeVersion": "6.0",
+    "digest": "924e668c559db61b7f4724a661223081c2fc60d55169f3fe1ad6156934d1d37f"
+  },
   "gemini": {
     "category": "symbols",
     "moji": "♊",
@@ -7578,7 +7585,7 @@
     "moji": "🤶",
     "description": "mother christmas",
     "unicodeVersion": "9.0",
-    "digest": "1f72f586ca75bd7ebb4150cdcc8199a930c32fa4b81510cb8d200f1b3ddd4076"
+    "digest": "357d769371305a8584f46d6087a962d647b6af22fab363a44702f38ab7814091"
   },
   "mrs_claus_tone1": {
     "category": "people",
@@ -10709,6 +10716,13 @@
     "unicodeVersion": "6.0",
     "digest": "817100d9979456e7d2f253ac22e13b7a2302dc1590566214915b003e403c53ca"
   },
+  "speech_left": {
+    "category": "symbols",
+    "moji": "🗨",
+    "description": "left speech bubble",
+    "unicodeVersion": "7.0",
+    "digest": "912797107d574f5665411498b6e349dbdec69846f085b6dc356548c4155e90b0"
+  },
   "speedboat": {
     "category": "travel",
     "moji": "🚤",
diff --git a/fixtures/emojis/generate_aliases.rb b/fixtures/emojis/generate_aliases.rb
deleted file mode 100755
index 8838fb9a3af..00000000000
--- a/fixtures/emojis/generate_aliases.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-#!/usr/bin/env ruby
-
-require 'json'
-
-aliases = {}
-
-index_file = File.expand_path("./index.json")
-index = JSON.parse(File.read(index_file))
-
-index.each_pair do |key, data|
-  data['aliases'].each do |a|
-    a.tr!(':', '')
-
-    aliases[a] = key
-  end
-end
-
-puts JSON.pretty_generate(aliases, indent: '   ', space: '', space_before: '')
diff --git a/fixtures/emojis/index.json b/fixtures/emojis/index.json
index 2a990913b9c..f55571d31fa 100644
--- a/fixtures/emojis/index.json
+++ b/fixtures/emojis/index.json
@@ -4023,7 +4023,7 @@
     ],
     "aliases_ascii": [],
     "keywords": [],
-    "moji": "🤸🏾,"
+    "moji": "🤸🏾"
   },
   "cartwheel_tone5": {
     "unicode": "1F938-1F3FF",
@@ -14475,6 +14475,19 @@
     ],
     "moji": "💎"
   },
+  "gay_pride_flag": {
+    "unicode": "1F3F3-1F308",
+    "unicode_alternates": [],
+    "name": "gay_pride_flag",
+    "shortname": ":gay_pride_flag:",
+    "category": "extras",
+    "aliases": [
+      ":rainbow_flag:"
+    ],
+    "aliases_ascii": [],
+    "keywords": [],
+    "moji": "🏳🌈"
+  },
   "gemini": {
     "unicode": "264A",
     "unicode_alternates": [
@@ -16830,7 +16843,6 @@
       "0:-)",
       "0:)",
       "0;^)",
-      "O:-)",
       "O:)",
       "O;-)",
       "O=)",
@@ -28506,6 +28518,21 @@
     ],
     "moji": "💬"
   },
+  "speech_left": {
+    "unicode": "1F5E8",
+    "unicode_alternates": [
+      "1F5E8-FE0F"
+    ],
+    "name": "left speech bubble",
+    "shortname": ":speech_left:",
+    "category": "symbols",
+    "aliases": [
+      ":left_speech_bubble:"
+    ],
+    "aliases_ascii": [],
+    "keywords": [],
+    "moji": "🗨"
+  },
   "speedboat": {
     "unicode": "1F6A4",
     "unicode_alternates": [],
@@ -33477,4 +33504,4 @@
     ],
     "moji": "💤"
   }
-}
+}
\ No newline at end of file
diff --git a/lib/api/api.rb b/lib/api/api.rb
index c37e596eb9d..8094597d238 100644
--- a/lib/api/api.rb
+++ b/lib/api/api.rb
@@ -61,7 +61,10 @@ module API
       mount ::API::V3::Variables
     end
 
-    before { header['X-Frame-Options'] = 'SAMEORIGIN' }
+    before do
+      header['X-Frame-Options'] = 'SAMEORIGIN'
+      header['X-Content-Type-Options'] = 'nosniff'
+    end
 
     # The locale is set to the current user's locale when `current_user` is loaded
     after { Gitlab::I18n.use_default_locale }
diff --git a/lib/api/api_guard.rb b/lib/api/api_guard.rb
index b9c7d443f6c..c1c0d344917 100644
--- a/lib/api/api_guard.rb
+++ b/lib/api/api_guard.rb
@@ -42,6 +42,8 @@ module API
 
     # Helper Methods for Grape Endpoint
     module HelperMethods
+      include Gitlab::Utils::StrongMemoize
+
       def find_current_user!
         user = find_user_from_access_token || find_user_from_warden
         return unless user
@@ -52,9 +54,9 @@ module API
       end
 
       def access_token
-        return @access_token if defined?(@access_token)
-
-        @access_token = find_oauth_access_token || find_personal_access_token
+        strong_memoize(:access_token) do
+          find_oauth_access_token || find_personal_access_token
+        end
       end
 
       def validate_access_token!(scopes: [])
diff --git a/lib/api/branches.rb b/lib/api/branches.rb
index 19152c9f395..cdef1b546a9 100644
--- a/lib/api/branches.rb
+++ b/lib/api/branches.rb
@@ -29,12 +29,11 @@ module API
         use :pagination
       end
       get ':id/repository/branches' do
-        branches = ::Kaminari.paginate_array(user_project.repository.branches.sort_by(&:name))
+        repository = user_project.repository
+        branches = ::Kaminari.paginate_array(repository.branches.sort_by(&:name))
+        merged_branch_names = repository.merged_branch_names(branches.map(&:name))
 
-        # n+1: https://gitlab.com/gitlab-org/gitlab-ce/issues/37442
-        Gitlab::GitalyClient.allow_n_plus_1_calls do
-          present paginate(branches), with: Entities::Branch, project: user_project
-        end
+        present paginate(branches), with: Entities::Branch, project: user_project, merged_branch_names: merged_branch_names
       end
 
       resource ':id/repository/branches/:branch', requirements: BRANCH_ENDPOINT_REQUIREMENTS do
diff --git a/lib/api/commits.rb b/lib/api/commits.rb
index 2685dc27252..2bc4039b019 100644
--- a/lib/api/commits.rb
+++ b/lib/api/commits.rb
@@ -117,7 +117,7 @@ module API
         commit = user_project.commit(params[:sha])
 
         not_found! 'Commit' unless commit
-        notes = user_project.notes.where(commit_id: commit.id).order(:created_at)
+        notes = commit.notes.order(:created_at)
 
         present paginate(notes), with: Entities::CommitNote
       end
diff --git a/lib/api/entities.rb b/lib/api/entities.rb
index 398a7906dcb..16ae99b5c6c 100644
--- a/lib/api/entities.rb
+++ b/lib/api/entities.rb
@@ -242,10 +242,7 @@ module API
       end
 
       expose :merged do |repo_branch, options|
-        # n+1: https://gitlab.com/gitlab-org/gitlab-ce/issues/37442
-        Gitlab::GitalyClient.allow_n_plus_1_calls do
-          options[:project].repository.merged_to_root_ref?(repo_branch.name)
-        end
+        options[:project].repository.merged_to_root_ref?(repo_branch, options[:merged_branch_names])
       end
 
       expose :protected do |repo_branch, options|
@@ -478,6 +475,10 @@ module API
       expose :subscribed do |merge_request, options|
         merge_request.subscribed?(options[:current_user], options[:project])
       end
+
+      expose :changes_count do |merge_request, _options|
+        merge_request.merge_request_diff.real_size
+      end
     end
 
     class MergeRequestChanges < MergeRequest
@@ -1041,6 +1042,11 @@ module API
       expose :value
     end
 
+    class PagesDomainCertificateExpiration < Grape::Entity
+      expose :expired?, as: :expired
+      expose :expiration
+    end
+
     class PagesDomainCertificate < Grape::Entity
       expose :subject
       expose :expired?, as: :expired
@@ -1048,12 +1054,23 @@ module API
       expose :certificate_text
     end
 
+    class PagesDomainBasic < Grape::Entity
+      expose :domain
+      expose :url
+      expose :certificate,
+        as: :certificate_expiration,
+        if: ->(pages_domain, _) { pages_domain.certificate? },
+        using: PagesDomainCertificateExpiration do |pages_domain|
+        pages_domain
+      end
+    end
+
     class PagesDomain < Grape::Entity
       expose :domain
       expose :url
       expose :certificate,
-             if: ->(pages_domain, _) { pages_domain.certificate? },
-             using: PagesDomainCertificate do |pages_domain|
+        if: ->(pages_domain, _) { pages_domain.certificate? },
+        using: PagesDomainCertificate do |pages_domain|
         pages_domain
       end
     end
diff --git a/lib/api/groups.rb b/lib/api/groups.rb
index e817dcbbc4b..bcf2e6dae1d 100644
--- a/lib/api/groups.rb
+++ b/lib/api/groups.rb
@@ -25,22 +25,7 @@ module API
         optional :statistics, type: Boolean, default: false, desc: 'Include project statistics'
       end
 
-      def present_groups(groups, options = {})
-        options = options.reverse_merge(
-          with: Entities::Group,
-          current_user: current_user
-        )
-
-        groups = groups.with_statistics if options[:statistics]
-        present paginate(groups), options
-      end
-    end
-
-    resource :groups do
-      desc 'Get a groups list' do
-        success Entities::Group
-      end
-      params do
+      params :group_list_params do
         use :statistics_params
         optional :skip_groups, type: Array[Integer], desc: 'Array of group ids to exclude from list'
         optional :all_available, type: Boolean, desc: 'Show all group that you have access to'
@@ -50,14 +35,47 @@ module API
         optional :sort, type: String, values: %w[asc desc], default: 'asc', desc: 'Sort by asc (ascending) or desc (descending)'
         use :pagination
       end
-      get do
-        find_params = { all_available: params[:all_available], owned: params[:owned] }
+
+      def find_groups(params)
+        find_params = {
+          all_available: params[:all_available],
+          custom_attributes: params[:custom_attributes],
+          owned: params[:owned]
+        }
+        find_params[:parent] = find_group!(params[:id]) if params[:id]
+
         groups = GroupsFinder.new(current_user, find_params).execute
         groups = groups.search(params[:search]) if params[:search].present?
         groups = groups.where.not(id: params[:skip_groups]) if params[:skip_groups].present?
         groups = groups.reorder(params[:order_by] => params[:sort])
 
-        present_groups groups, statistics: params[:statistics] && current_user.admin?
+        groups
+      end
+
+      def present_groups(params, groups)
+        options = {
+          with: Entities::Group,
+          current_user: current_user,
+          statistics: params[:statistics] && current_user.admin?
+        }
+
+        groups = groups.with_statistics if options[:statistics]
+        present paginate(groups), options
+      end
+    end
+
+    resource :groups do
+      include CustomAttributesEndpoints
+
+      desc 'Get a groups list' do
+        success Entities::Group
+      end
+      params do
+        use :group_list_params
+      end
+      get do
+        groups = find_groups(params)
+        present_groups params, groups
       end
 
       desc 'Create a group. Available only for users who can create groups.' do
@@ -159,6 +177,17 @@ module API
         present paginate(projects), with: entity, current_user: current_user
       end
 
+      desc 'Get a list of subgroups in this group.' do
+        success Entities::Group
+      end
+      params do
+        use :group_list_params
+      end
+      get ":id/subgroups" do
+        groups = find_groups(params)
+        present_groups params, groups
+      end
+
       desc 'Transfer a project to the group namespace. Available only for admin.' do
         success Entities::GroupDetail
       end
diff --git a/lib/api/helpers.rb b/lib/api/helpers.rb
index d6df269486a..7f436b69091 100644
--- a/lib/api/helpers.rb
+++ b/lib/api/helpers.rb
@@ -156,6 +156,11 @@ module API
       end
     end
 
+    def authenticated_with_full_private_access!
+      authenticate!
+      forbidden! unless current_user.full_private_access?
+    end
+
     def authenticated_as_admin!
       authenticate!
       forbidden! unless current_user.admin?
@@ -191,6 +196,10 @@ module API
       not_found! unless user_project.pages_available?
     end
 
+    def require_pages_config_enabled!
+      not_found! unless Gitlab.config.pages.enabled
+    end
+
     def can?(object, action, subject = :global)
       Ability.allowed?(object, action, subject)
     end
@@ -329,6 +338,7 @@ module API
       finder_params[:archived] = params[:archived]
       finder_params[:search] = params[:search] if params[:search]
       finder_params[:user] = params.delete(:user) if params[:user]
+      finder_params[:custom_attributes] = params[:custom_attributes] if params[:custom_attributes]
       finder_params
     end
 
diff --git a/lib/api/helpers/internal_helpers.rb b/lib/api/helpers/internal_helpers.rb
index 6bb85dd2619..0d57c822578 100644
--- a/lib/api/helpers/internal_helpers.rb
+++ b/lib/api/helpers/internal_helpers.rb
@@ -36,6 +36,18 @@ module API
         {}
       end
 
+      def fix_git_env_repository_paths(env, repository_path)
+        if obj_dir_relative = env['GIT_OBJECT_DIRECTORY_RELATIVE'].presence
+          env['GIT_OBJECT_DIRECTORY'] = File.join(repository_path, obj_dir_relative)
+        end
+
+        if alt_obj_dirs_relative = env['GIT_ALTERNATE_OBJECT_DIRECTORIES_RELATIVE'].presence
+          env['GIT_ALTERNATE_OBJECT_DIRECTORIES'] = alt_obj_dirs_relative.map { |dir| File.join(repository_path, dir) }
+        end
+
+        env
+      end
+
       def log_user_activity(actor)
         commands = Gitlab::GitAccess::DOWNLOAD_COMMANDS
 
diff --git a/lib/api/internal.rb b/lib/api/internal.rb
index 6e78ac2c903..451121a4cea 100644
--- a/lib/api/internal.rb
+++ b/lib/api/internal.rb
@@ -19,7 +19,9 @@ module API
         status 200
 
         # Stores some Git-specific env thread-safely
-        Gitlab::Git::Env.set(parse_env)
+        env = parse_env
+        env = fix_git_env_repository_paths(env, repository_path) if project
+        Gitlab::Git::Env.set(env)
 
         actor =
           if params[:key_id]
diff --git a/lib/api/issues.rb b/lib/api/issues.rb
index 0df41dcc903..74dfd9f96de 100644
--- a/lib/api/issues.rb
+++ b/lib/api/issues.rb
@@ -68,7 +68,7 @@ module API
                          desc: 'Return issues for the given scope: `created-by-me`, `assigned-to-me` or `all`'
       end
       get do
-        issues = find_issues
+        issues = paginate(find_issues)
 
         options = {
           with: Entities::IssueBasic,
@@ -76,7 +76,7 @@ module API
           issuable_metadata: issuable_meta_data(issues, 'Issue')
         }
 
-        present paginate(issues), options
+        present issues, options
       end
     end
 
@@ -95,7 +95,7 @@ module API
       get ":id/issues" do
         group = find_group!(params[:id])
 
-        issues = find_issues(group_id: group.id)
+        issues = paginate(find_issues(group_id: group.id))
 
         options = {
           with: Entities::IssueBasic,
@@ -103,7 +103,7 @@ module API
           issuable_metadata: issuable_meta_data(issues, 'Issue')
         }
 
-        present paginate(issues), options
+        present issues, options
       end
     end
 
@@ -124,7 +124,7 @@ module API
       get ":id/issues" do
         project = find_project!(params[:id])
 
-        issues = find_issues(project_id: project.id)
+        issues = paginate(find_issues(project_id: project.id))
 
         options = {
           with: Entities::IssueBasic,
@@ -133,7 +133,7 @@ module API
           issuable_metadata: issuable_meta_data(issues, 'Issue')
         }
 
-        present paginate(issues), options
+        present issues, options
       end
 
       desc 'Get a single project issue' do
diff --git a/lib/api/jobs.rb b/lib/api/jobs.rb
index 3c1c412ba42..a116ab3c9bd 100644
--- a/lib/api/jobs.rb
+++ b/lib/api/jobs.rb
@@ -136,7 +136,7 @@ module API
         authorize_update_builds!
 
         build = find_build!(params[:job_id])
-        authorize!(:update_build, build)
+        authorize!(:erase_build, build)
         return forbidden!('Job is not erasable!') unless build.erasable?
 
         build.erase(erased_by: current_user)
diff --git a/lib/api/pages_domains.rb b/lib/api/pages_domains.rb
index 259f3f34068..d7b613a717e 100644
--- a/lib/api/pages_domains.rb
+++ b/lib/api/pages_domains.rb
@@ -4,7 +4,6 @@ module API
 
     before do
       authenticate!
-      require_pages_enabled!
     end
 
     after_validation do
@@ -29,10 +28,31 @@ module API
       end
     end
 
+    resource :pages do
+      before do
+        require_pages_config_enabled!
+        authenticated_with_full_private_access!
+      end
+
+      desc "Get all pages domains" do
+        success Entities::PagesDomainBasic
+      end
+      params do
+        use :pagination
+      end
+      get "domains" do
+        present paginate(PagesDomain.all), with: Entities::PagesDomainBasic
+      end
+    end
+
     params do
       requires :id, type: String, desc: 'The ID of a project'
     end
     resource :projects, requirements: { id: %r{[^/]+} } do
+      before do
+        require_pages_enabled!
+      end
+
       desc 'Get all pages domains' do
         success Entities::PagesDomain
       end
diff --git a/lib/api/projects.rb b/lib/api/projects.rb
index aab7a6c3f93..4cd7e714aa2 100644
--- a/lib/api/projects.rb
+++ b/lib/api/projects.rb
@@ -119,6 +119,8 @@ module API
     end
 
     resource :projects do
+      include CustomAttributesEndpoints
+
       desc 'Get a list of visible projects for authenticated user' do
         success Entities::BasicProjectDetails
       end
diff --git a/lib/api/services.rb b/lib/api/services.rb
index 6454e475036..bbcc851d07a 100644
--- a/lib/api/services.rb
+++ b/lib/api/services.rb
@@ -522,6 +522,12 @@ module API
           name: :webhook,
           type: String,
           desc: 'The Mattermost webhook. e.g. http://mattermost_host/hooks/...'
+        },
+        {
+          required: false,
+          name: :username,
+          type: String,
+          desc: 'The username to use to post the message'
         }
       ],
       'teamcity' => [
diff --git a/lib/api/v3/branches.rb b/lib/api/v3/branches.rb
index 69cd12de72c..b201bf77667 100644
--- a/lib/api/v3/branches.rb
+++ b/lib/api/v3/branches.rb
@@ -14,9 +14,11 @@ module API
           success ::API::Entities::Branch
         end
         get ":id/repository/branches" do
-          branches = user_project.repository.branches.sort_by(&:name)
+          repository = user_project.repository
+          branches = repository.branches.sort_by(&:name)
+          merged_branch_names = repository.merged_branch_names(branches.map(&:name))
 
-          present branches, with: ::API::Entities::Branch, project: user_project
+          present branches, with: ::API::Entities::Branch, project: user_project, merged_branch_names: merged_branch_names
         end
 
         desc 'Delete a branch'
diff --git a/lib/api/v3/builds.rb b/lib/api/v3/builds.rb
index f493fd7c7ec..fa0bef39602 100644
--- a/lib/api/v3/builds.rb
+++ b/lib/api/v3/builds.rb
@@ -169,7 +169,7 @@ module API
           authorize_update_builds!
 
           build = get_build!(params[:build_id])
-          authorize!(:update_build, build)
+          authorize!(:erase_build, build)
           return forbidden!('Build is not erasable!') unless build.erasable?
 
           build.erase(erased_by: current_user)
diff --git a/lib/api/v3/commits.rb b/lib/api/v3/commits.rb
index ed206a6def0..be360fbfc0c 100644
--- a/lib/api/v3/commits.rb
+++ b/lib/api/v3/commits.rb
@@ -106,7 +106,7 @@ module API
           commit = user_project.commit(params[:sha])
 
           not_found! 'Commit' unless commit
-          notes = Note.where(commit_id: commit.id).order(:created_at)
+          notes = commit.notes.order(:created_at)
 
           present paginate(notes), with: ::API::Entities::CommitNote
         end
diff --git a/lib/backup/repository.rb b/lib/backup/repository.rb
index 3ad09a1b421..b6d273b98c2 100644
--- a/lib/backup/repository.rb
+++ b/lib/backup/repository.rb
@@ -7,12 +7,16 @@ module Backup
       prepare
 
       Project.find_each(batch_size: 1000) do |project|
-        progress.print " * #{project.full_path} ... "
+        progress.print " * #{display_repo_path(project)} ... "
         path_to_project_repo = path_to_repo(project)
         path_to_project_bundle = path_to_bundle(project)
 
-        # Create namespace dir if missing
-        FileUtils.mkdir_p(File.join(backup_repos_path, project.namespace.full_path)) if project.namespace
+        # Create namespace dir or hashed path if missing
+        if project.hashed_storage?(:repository)
+          FileUtils.mkdir_p(File.dirname(File.join(backup_repos_path, project.disk_path)))
+        else
+          FileUtils.mkdir_p(File.join(backup_repos_path, project.namespace.full_path)) if project.namespace
+        end
 
         if empty_repo?(project)
           progress.puts "[SKIPPED]".color(:cyan)
@@ -42,7 +46,7 @@ module Backup
         path_to_wiki_bundle = path_to_bundle(wiki)
 
         if File.exist?(path_to_wiki_repo)
-          progress.print " * #{wiki.full_path} ... "
+          progress.print " * #{display_repo_path(wiki)} ... "
           if empty_repo?(wiki)
             progress.puts " [SKIPPED]".color(:cyan)
           else
@@ -71,7 +75,7 @@ module Backup
       end
 
       Project.find_each(batch_size: 1000) do |project|
-        progress.print " * #{project.full_path} ... "
+        progress.print " * #{display_repo_path(project)} ... "
         path_to_project_repo = path_to_repo(project)
         path_to_project_bundle = path_to_bundle(project)
 
@@ -104,7 +108,7 @@ module Backup
         path_to_wiki_bundle = path_to_bundle(wiki)
 
         if File.exist?(path_to_wiki_bundle)
-          progress.print " * #{wiki.full_path} ... "
+          progress.print " * #{display_repo_path(wiki)} ... "
 
           # If a wiki bundle exists, first remove the empty repo
           # that was initialized with ProjectWiki.new() and then
@@ -185,14 +189,14 @@ module Backup
 
     def progress_warn(project, cmd, output)
       progress.puts "[WARNING] Executing #{cmd}".color(:orange)
-      progress.puts "Ignoring error on #{project.full_path} - #{output}".color(:orange)
+      progress.puts "Ignoring error on #{display_repo_path(project)} - #{output}".color(:orange)
     end
 
     def empty_repo?(project_or_wiki)
       project_or_wiki.repository.expire_exists_cache # protect backups from stale cache
       project_or_wiki.repository.empty_repo?
     rescue => e
-      progress.puts "Ignoring repository error and continuing backing up project: #{project_or_wiki.full_path} - #{e.message}".color(:orange)
+      progress.puts "Ignoring repository error and continuing backing up project: #{display_repo_path(project_or_wiki)} - #{e.message}".color(:orange)
 
       false
     end
@@ -204,5 +208,9 @@ module Backup
     def progress
       $progress
     end
+
+    def display_repo_path(project)
+      project.hashed_storage?(:repository) ? "#{project.full_path} (#{project.disk_path})" : project.full_path
+    end
   end
 end
diff --git a/lib/banzai.rb b/lib/banzai.rb
index 35ca234c1ba..5df98f66f3b 100644
--- a/lib/banzai.rb
+++ b/lib/banzai.rb
@@ -3,8 +3,8 @@ module Banzai
     Renderer.render(text, context)
   end
 
-  def self.render_field(object, field)
-    Renderer.render_field(object, field)
+  def self.render_field(object, field, context = {})
+    Renderer.render_field(object, field, context)
   end
 
   def self.cache_collection_render(texts_and_contexts)
diff --git a/lib/banzai/filter/absolute_link_filter.rb b/lib/banzai/filter/absolute_link_filter.rb
new file mode 100644
index 00000000000..1ec6201523f
--- /dev/null
+++ b/lib/banzai/filter/absolute_link_filter.rb
@@ -0,0 +1,34 @@
+require 'uri'
+
+module Banzai
+  module Filter
+    # HTML filter that converts relative urls into absolute ones.
+    class AbsoluteLinkFilter < HTML::Pipeline::Filter
+      def call
+        return doc unless context[:only_path] == false
+
+        doc.search('a.gfm').each do |el|
+          process_link_attr el.attribute('href')
+        end
+
+        doc
+      end
+
+      protected
+
+      def process_link_attr(html_attr)
+        return if html_attr.blank?
+        return if html_attr.value.start_with?('//')
+
+        uri = URI(html_attr.value)
+        html_attr.value = absolute_link_attr(uri) if uri.relative?
+      rescue URI::Error
+        # noop
+      end
+
+      def absolute_link_attr(uri)
+        URI.join(Gitlab.config.gitlab.url, uri).to_s
+      end
+    end
+  end
+end
diff --git a/lib/banzai/filter/abstract_reference_filter.rb b/lib/banzai/filter/abstract_reference_filter.rb
index a0f7e4e5ad5..9fef386de16 100644
--- a/lib/banzai/filter/abstract_reference_filter.rb
+++ b/lib/banzai/filter/abstract_reference_filter.rb
@@ -311,30 +311,6 @@ module Banzai
       def project_refs_cache
         RequestStore[:banzai_project_refs] ||= {}
       end
-
-      def cached_call(request_store_key, cache_key, path: [])
-        if RequestStore.active?
-          cache = RequestStore[request_store_key] ||= Hash.new do |hash, key|
-            hash[key] = Hash.new { |h, k| h[k] = {} }
-          end
-
-          cache = cache.dig(*path) if path.any?
-
-          get_or_set_cache(cache, cache_key) { yield }
-        else
-          yield
-        end
-      end
-
-      def get_or_set_cache(cache, key)
-        if cache.key?(key)
-          cache[key]
-        else
-          value = yield
-          cache[key] = value if key.present?
-          value
-        end
-      end
     end
   end
 end
diff --git a/lib/banzai/filter/milestone_reference_filter.rb b/lib/banzai/filter/milestone_reference_filter.rb
index 4fc5f211e84..bb5da310e09 100644
--- a/lib/banzai/filter/milestone_reference_filter.rb
+++ b/lib/banzai/filter/milestone_reference_filter.rb
@@ -56,7 +56,7 @@ module Banzai
       end
 
       def find_milestone_with_finder(project, params)
-        finder_params = { project_ids: [project.id], order: nil }
+        finder_params = { project_ids: [project.id], order: nil, state: 'all' }
 
         # We don't support IID lookups for group milestones, because IIDs can
         # clash between group and project milestones.
diff --git a/lib/banzai/filter/reference_filter.rb b/lib/banzai/filter/reference_filter.rb
index c6ae28adf87..b9d5ecf70ec 100644
--- a/lib/banzai/filter/reference_filter.rb
+++ b/lib/banzai/filter/reference_filter.rb
@@ -8,6 +8,8 @@ module Banzai
     #   :project (required) - Current project, ignored if reference is cross-project.
     #   :only_path          - Generate path-only links.
     class ReferenceFilter < HTML::Pipeline::Filter
+      include RequestStoreReferenceCache
+
       class << self
         attr_accessor :reference_type
       end
diff --git a/lib/banzai/filter/user_reference_filter.rb b/lib/banzai/filter/user_reference_filter.rb
index afb6e25963c..c7fa8a8119f 100644
--- a/lib/banzai/filter/user_reference_filter.rb
+++ b/lib/banzai/filter/user_reference_filter.rb
@@ -60,10 +60,14 @@ module Banzai
         self.class.references_in(text) do |match, username|
           if username == 'all' && !skip_project_check?
             link_to_all(link_content: link_content)
-          elsif namespace = namespaces[username.downcase]
-            link_to_namespace(namespace, link_content: link_content) || match
           else
-            match
+            cached_call(:banzai_url_for_object, match, path: [User, username.downcase]) do
+              if namespace = namespaces[username.downcase]
+                link_to_namespace(namespace, link_content: link_content) || match
+              else
+                match
+              end
+            end
           end
         end
       end
@@ -74,7 +78,10 @@ module Banzai
       # The keys of this Hash are the namespace paths, the values the
       # corresponding Namespace objects.
       def namespaces
-        @namespaces ||= Namespace.where_full_path_in(usernames).index_by(&:full_path).transform_keys(&:downcase)
+        @namespaces ||= Namespace.eager_load(:owner, :route)
+                                 .where_full_path_in(usernames)
+                                 .index_by(&:full_path)
+                                 .transform_keys(&:downcase)
       end
 
       # Returns all usernames referenced in the current document.
diff --git a/lib/banzai/note_renderer.rb b/lib/banzai/note_renderer.rb
deleted file mode 100644
index 2b7c10f1a0e..00000000000
--- a/lib/banzai/note_renderer.rb
+++ /dev/null
@@ -1,21 +0,0 @@
-module Banzai
-  module NoteRenderer
-    # Renders a collection of Note instances.
-    #
-    # notes - The notes to render.
-    # project - The project to use for redacting.
-    # user - The user viewing the notes.
-    # path - The request path.
-    # wiki - The project's wiki.
-    # git_ref - The current Git reference.
-    def self.render(notes, project, user = nil, path = nil, wiki = nil, git_ref = nil)
-      renderer = ObjectRenderer.new(project,
-                                    user,
-                                    requested_path: path,
-                                    project_wiki: wiki,
-                                    ref: git_ref)
-
-      renderer.render(notes, :note)
-    end
-  end
-end
diff --git a/lib/banzai/object_renderer.rb b/lib/banzai/object_renderer.rb
index e40556e869c..9bb8ed913d8 100644
--- a/lib/banzai/object_renderer.rb
+++ b/lib/banzai/object_renderer.rb
@@ -37,7 +37,7 @@ module Banzai
 
       objects.each_with_index do |object, index|
         redacted_data = redacted[index]
-        object.__send__("redacted_#{attribute}_html=", redacted_data[:document].to_html.html_safe) # rubocop:disable GitlabSecurity/PublicSend
+        object.__send__("redacted_#{attribute}_html=", redacted_data[:document].to_html(save_options).html_safe) # rubocop:disable GitlabSecurity/PublicSend
         object.user_visible_reference_count = redacted_data[:visible_reference_count] if object.respond_to?(:user_visible_reference_count)
       end
     end
@@ -83,5 +83,10 @@ module Banzai
         skip_redaction: true
       )
     end
+
+    def save_options
+      return {} unless base_context[:xhtml]
+      { save_with: Nokogiri::XML::Node::SaveOptions::AS_XHTML }
+    end
   end
 end
diff --git a/lib/banzai/pipeline/post_process_pipeline.rb b/lib/banzai/pipeline/post_process_pipeline.rb
index 131ac3b0eec..dcd52bc03c7 100644
--- a/lib/banzai/pipeline/post_process_pipeline.rb
+++ b/lib/banzai/pipeline/post_process_pipeline.rb
@@ -3,9 +3,10 @@ module Banzai
     class PostProcessPipeline < BasePipeline
       def self.filters
         FilterArray[
+          Filter::RedactorFilter,
           Filter::RelativeLinkFilter,
           Filter::IssuableStateFilter,
-          Filter::RedactorFilter
+          Filter::AbsoluteLinkFilter
         ]
       end
 
diff --git a/lib/banzai/renderer.rb b/lib/banzai/renderer.rb
index 5f91884a878..5cb9adf52b0 100644
--- a/lib/banzai/renderer.rb
+++ b/lib/banzai/renderer.rb
@@ -32,12 +32,9 @@ module Banzai
     # Convert a Markdown-containing field on an object into an HTML-safe String
     # of HTML. This method is analogous to calling render(object.field), but it
     # can cache the rendered HTML in the object, rather than Redis.
-    #
-    # The context to use is managed by the object and cannot be changed.
-    # Use #render, passing it the field text, if a custom rendering is needed.
-    def self.render_field(object, field)
+    def self.render_field(object, field, context = {})
       unless object.respond_to?(:cached_markdown_fields)
-        return cacheless_render_field(object, field)
+        return cacheless_render_field(object, field, context)
       end
 
       object.refresh_markdown_cache! unless object.cached_html_up_to_date?(field)
@@ -46,9 +43,9 @@ module Banzai
     end
 
     # Same as +render_field+, but without consulting or updating the cache field
-    def self.cacheless_render_field(object, field, options = {})
+    def self.cacheless_render_field(object, field, context = {})
       text = object.__send__(field) # rubocop:disable GitlabSecurity/PublicSend
-      context = object.banzai_render_context(field).merge(options)
+      context = context.reverse_merge(object.banzai_render_context(field)) if object.respond_to?(:banzai_render_context)
 
       cacheless_render(text, context)
     end
diff --git a/lib/banzai/request_store_reference_cache.rb b/lib/banzai/request_store_reference_cache.rb
new file mode 100644
index 00000000000..426131442a2
--- /dev/null
+++ b/lib/banzai/request_store_reference_cache.rb
@@ -0,0 +1,27 @@
+module Banzai
+  module RequestStoreReferenceCache
+    def cached_call(request_store_key, cache_key, path: [])
+      if RequestStore.active?
+        cache = RequestStore[request_store_key] ||= Hash.new do |hash, key|
+          hash[key] = Hash.new { |h, k| h[k] = {} }
+        end
+
+        cache = cache.dig(*path) if path.any?
+
+        get_or_set_cache(cache, cache_key) { yield }
+      else
+        yield
+      end
+    end
+
+    def get_or_set_cache(cache, key)
+      if cache.key?(key)
+        cache[key]
+      else
+        value = yield
+        cache[key] = value if key.present?
+        value
+      end
+    end
+  end
+end
diff --git a/lib/constraints/group_url_constrainer.rb b/lib/constraints/group_url_constrainer.rb
index 6fc1d56d7a0..fd2ac2db0a9 100644
--- a/lib/constraints/group_url_constrainer.rb
+++ b/lib/constraints/group_url_constrainer.rb
@@ -2,7 +2,7 @@ class GroupUrlConstrainer
   def matches?(request)
     full_path = request.params[:group_id] || request.params[:id]
 
-    return false unless DynamicPathValidator.valid_group_path?(full_path)
+    return false unless NamespacePathValidator.valid_path?(full_path)
 
     Group.find_by_full_path(full_path, follow_redirects: request.get?).present?
   end
diff --git a/lib/constraints/project_url_constrainer.rb b/lib/constraints/project_url_constrainer.rb
index 5bef29eb1da..e90ecb5ec69 100644
--- a/lib/constraints/project_url_constrainer.rb
+++ b/lib/constraints/project_url_constrainer.rb
@@ -4,7 +4,7 @@ class ProjectUrlConstrainer
     project_path = request.params[:project_id] || request.params[:id]
     full_path = [namespace_path, project_path].join('/')
 
-    return false unless DynamicPathValidator.valid_project_path?(full_path)
+    return false unless ProjectPathValidator.valid_path?(full_path)
 
     # We intentionally allow SELECT(*) here so result of this query can be used
     # as cache for further Project.find_by_full_path calls within request
diff --git a/lib/constraints/user_url_constrainer.rb b/lib/constraints/user_url_constrainer.rb
index d16ae7f3f40..b7633aa7cbb 100644
--- a/lib/constraints/user_url_constrainer.rb
+++ b/lib/constraints/user_url_constrainer.rb
@@ -2,7 +2,7 @@ class UserUrlConstrainer
   def matches?(request)
     full_path = request.params[:username]
 
-    return false unless DynamicPathValidator.valid_user_path?(full_path)
+    return false unless UserPathValidator.valid_path?(full_path)
 
     User.find_by_full_path(full_path, follow_redirects: request.get?).present?
   end
diff --git a/lib/feature.rb b/lib/feature.rb
index 4bd29aed687..ac3bc65c0d5 100644
--- a/lib/feature.rb
+++ b/lib/feature.rb
@@ -5,6 +5,10 @@ class Feature
   class FlipperFeature < Flipper::Adapters::ActiveRecord::Feature
     # Using `self.table_name` won't work. ActiveRecord bug?
     superclass.table_name = 'features'
+
+    def self.feature_names
+      pluck(:key)
+    end
   end
 
   class FlipperGate < Flipper::Adapters::ActiveRecord::Gate
@@ -22,11 +26,19 @@ class Feature
       flipper.feature(key)
     end
 
+    def persisted_names
+      if RequestStore.active?
+        RequestStore[:flipper_persisted_names] ||= FlipperFeature.feature_names
+      else
+        FlipperFeature.feature_names
+      end
+    end
+
     def persisted?(feature)
       # Flipper creates on-memory features when asked for a not-yet-created one.
       # If we want to check if a feature has been actually set, we look for it
       # on the persisted features list.
-      all.map(&:name).include?(feature.name)
+      persisted_names.include?(feature.name)
     end
 
     def enabled?(key, thing = nil)
diff --git a/lib/github/client.rb b/lib/github/client.rb
deleted file mode 100644
index 29bd9c1f39e..00000000000
--- a/lib/github/client.rb
+++ /dev/null
@@ -1,54 +0,0 @@
-module Github
-  class Client
-    TIMEOUT = 60
-    DEFAULT_PER_PAGE = 100
-
-    attr_reader :connection, :rate_limit
-
-    def initialize(options)
-      @connection = Faraday.new(url: options.fetch(:url, root_endpoint)) do |faraday|
-        faraday.options.open_timeout = options.fetch(:timeout, TIMEOUT)
-        faraday.options.timeout = options.fetch(:timeout, TIMEOUT)
-        faraday.authorization 'token', options.fetch(:token)
-        faraday.adapter :net_http
-        faraday.ssl.verify = verify_ssl
-      end
-
-      @rate_limit = RateLimit.new(connection)
-    end
-
-    def get(url, query = {})
-      exceed, reset_in = rate_limit.get
-      sleep reset_in if exceed
-
-      Github::Response.new(connection.get(url, { per_page: DEFAULT_PER_PAGE }.merge(query)))
-    end
-
-    private
-
-    def root_endpoint
-      custom_endpoint || github_endpoint
-    end
-
-    def custom_endpoint
-      github_omniauth_provider.dig('args', 'client_options', 'site')
-    end
-
-    def verify_ssl
-      # If there is no config, we're connecting to github.com
-      # and we should verify ssl.
-      github_omniauth_provider.fetch('verify_ssl', true)
-    end
-
-    def github_endpoint
-      OmniAuth::Strategies::GitHub.default_options[:client_options][:site]
-    end
-
-    def github_omniauth_provider
-      @github_omniauth_provider ||=
-        Gitlab.config.omniauth.providers
-              .find { |provider| provider.name == 'github' }
-              .to_h
-    end
-  end
-end
diff --git a/lib/github/collection.rb b/lib/github/collection.rb
deleted file mode 100644
index 014b2038c4b..00000000000
--- a/lib/github/collection.rb
+++ /dev/null
@@ -1,29 +0,0 @@
-module Github
-  class Collection
-    attr_reader :options
-
-    def initialize(options)
-      @options = options
-    end
-
-    def fetch(url, query = {})
-      return [] if url.blank?
-
-      Enumerator.new do |yielder|
-        loop do
-          response = client.get(url, query)
-          response.body.each { |item| yielder << item }
-
-          raise StopIteration unless response.rels.key?(:next)
-          url = response.rels[:next]
-        end
-      end.lazy
-    end
-
-    private
-
-    def client
-      @client ||= Github::Client.new(options)
-    end
-  end
-end
diff --git a/lib/github/error.rb b/lib/github/error.rb
deleted file mode 100644
index 66d7afaa787..00000000000
--- a/lib/github/error.rb
+++ /dev/null
@@ -1,3 +0,0 @@
-module Github
-  RepositoryFetchError = Class.new(StandardError)
-end
diff --git a/lib/github/import.rb b/lib/github/import.rb
deleted file mode 100644
index 8cabbdec940..00000000000
--- a/lib/github/import.rb
+++ /dev/null
@@ -1,378 +0,0 @@
-require_relative 'error'
-require_relative 'import/issue'
-require_relative 'import/legacy_diff_note'
-require_relative 'import/merge_request'
-require_relative 'import/note'
-
-module Github
-  class Import
-    include Gitlab::ShellAdapter
-
-    attr_reader :project, :repository, :repo, :repo_url, :wiki_url,
-                :options, :errors, :cached, :verbose, :last_fetched_at
-
-    def initialize(project, options = {})
-      @project = project
-      @repository = project.repository
-      @repo = project.import_source
-      @repo_url = project.import_url
-      @wiki_url = project.import_url.sub(/\.git\z/, '.wiki.git')
-      @options = options.reverse_merge(token: project.import_data&.credentials&.fetch(:user))
-      @verbose = options.fetch(:verbose, false)
-      @cached  = Hash.new { |hash, key| hash[key] = Hash.new }
-      @errors  = []
-      @last_fetched_at = nil
-    end
-
-    # rubocop: disable Rails/Output
-    def execute
-      puts 'Fetching repository...'.color(:aqua) if verbose
-      setup_and_fetch_repository
-      puts 'Fetching labels...'.color(:aqua) if verbose
-      fetch_labels
-      puts 'Fetching milestones...'.color(:aqua) if verbose
-      fetch_milestones
-      puts 'Fetching pull requests...'.color(:aqua) if verbose
-      fetch_pull_requests
-      puts 'Fetching issues...'.color(:aqua) if verbose
-      fetch_issues
-      puts 'Fetching releases...'.color(:aqua) if verbose
-      fetch_releases
-      puts 'Cloning wiki repository...'.color(:aqua) if verbose
-      fetch_wiki_repository
-      puts 'Expiring repository cache...'.color(:aqua) if verbose
-      expire_repository_cache
-
-      errors.empty?
-    rescue Github::RepositoryFetchError
-      expire_repository_cache
-      false
-    ensure
-      keep_track_of_errors
-    end
-
-    private
-
-    def setup_and_fetch_repository
-      begin
-        project.ensure_repository
-        project.repository.add_remote('github', repo_url)
-        project.repository.set_import_remote_as_mirror('github')
-        project.repository.add_remote_fetch_config('github', '+refs/pull/*/head:refs/merge-requests/*/head')
-        fetch_remote(forced: true)
-      rescue Gitlab::Git::Repository::NoRepository,
-             Gitlab::Git::RepositoryMirroring::RemoteError,
-             Gitlab::Shell::Error => e
-        error(:project, repo_url, e.message)
-        raise Github::RepositoryFetchError
-      end
-    end
-
-    def fetch_remote(forced: false)
-      @last_fetched_at = Time.now
-      project.repository.fetch_remote('github', forced: forced)
-    end
-
-    def fetch_wiki_repository
-      return if project.wiki.repository_exists?
-
-      wiki_path = project.wiki.disk_path
-      gitlab_shell.import_repository(project.repository_storage_path, wiki_path, wiki_url)
-    rescue Gitlab::Shell::Error => e
-      # GitHub error message when the wiki repo has not been created,
-      # this means that repo has wiki enabled, but have no pages. So,
-      # we can skip the import.
-      if e.message !~ /repository not exported/
-        error(:wiki, wiki_url, e.message)
-      end
-    end
-
-    def fetch_labels
-      url = "/repos/#{repo}/labels"
-
-      while url
-        response = Github::Client.new(options).get(url)
-
-        response.body.each do |raw|
-          begin
-            representation = Github::Representation::Label.new(raw)
-
-            label = project.labels.find_or_create_by!(title: representation.title) do |label|
-              label.color = representation.color
-            end
-
-            cached[:label_ids][representation.title] = label.id
-          rescue => e
-            error(:label, representation.url, e.message)
-          end
-        end
-
-        url = response.rels[:next]
-      end
-    end
-
-    def fetch_milestones
-      url = "/repos/#{repo}/milestones"
-
-      while url
-        response = Github::Client.new(options).get(url, state: :all)
-
-        response.body.each do |raw|
-          begin
-            milestone = Github::Representation::Milestone.new(raw)
-            next if project.milestones.where(iid: milestone.iid).exists?
-
-            project.milestones.create!(
-              iid: milestone.iid,
-              title: milestone.title,
-              description: milestone.description,
-              due_date: milestone.due_date,
-              state: milestone.state,
-              created_at: milestone.created_at,
-              updated_at: milestone.updated_at
-            )
-          rescue => e
-            error(:milestone, milestone.url, e.message)
-          end
-        end
-
-        url = response.rels[:next]
-      end
-    end
-
-    def fetch_pull_requests
-      url = "/repos/#{repo}/pulls"
-
-      while url
-        response = Github::Client.new(options).get(url, state: :all, sort: :created, direction: :asc)
-
-        response.body.each do |raw|
-          pull_request  = Github::Representation::PullRequest.new(raw, options.merge(project: project))
-          merge_request = MergeRequest.find_or_initialize_by(iid: pull_request.iid, source_project_id: project.id)
-          next unless merge_request.new_record? && pull_request.valid?
-
-          begin
-            # If the PR has been created/updated after we last fetched the
-            # remote, we fetch again to get the up-to-date refs.
-            fetch_remote if pull_request.updated_at > last_fetched_at
-
-            author_id   = user_id(pull_request.author, project.creator_id)
-            description = format_description(pull_request.description, pull_request.author)
-
-            merge_request.attributes = {
-              iid: pull_request.iid,
-              title: pull_request.title,
-              description: description,
-              ref_fetched: true,
-              source_project: pull_request.source_project,
-              source_branch: pull_request.source_branch_name,
-              source_branch_sha: pull_request.source_branch_sha,
-              target_project: pull_request.target_project,
-              target_branch: pull_request.target_branch_name,
-              target_branch_sha: pull_request.target_branch_sha,
-              state: pull_request.state,
-              milestone_id: milestone_id(pull_request.milestone),
-              author_id: author_id,
-              assignee_id: user_id(pull_request.assignee),
-              created_at: pull_request.created_at,
-              updated_at: pull_request.updated_at
-            }
-
-            merge_request.save!(validate: false)
-            merge_request.merge_request_diffs.create
-
-            review_comments_url = "/repos/#{repo}/pulls/#{pull_request.iid}/comments"
-            fetch_comments(merge_request, :review_comment, review_comments_url, LegacyDiffNote)
-          rescue => e
-            error(:pull_request, pull_request.url, e.message)
-          end
-        end
-
-        url = response.rels[:next]
-      end
-    end
-
-    def fetch_issues
-      url = "/repos/#{repo}/issues"
-
-      while url
-        response = Github::Client.new(options).get(url, state: :all, sort: :created, direction: :asc)
-
-        response.body.each { |raw| populate_issue(raw) }
-
-        url = response.rels[:next]
-      end
-    end
-
-    def populate_issue(raw)
-      representation = Github::Representation::Issue.new(raw, options)
-
-      begin
-        # Every pull request is an issue, but not every issue
-        # is a pull request. For this reason, "shared" actions
-        # for both features, like manipulating assignees, labels
-        # and milestones, are provided within the Issues API.
-        if representation.pull_request?
-          return unless representation.labels? || representation.comments?
-
-          merge_request = MergeRequest.find_by!(target_project_id: project.id, iid: representation.iid)
-
-          if representation.labels?
-            merge_request.update_attribute(:label_ids, label_ids(representation.labels))
-          end
-
-          fetch_comments_conditionally(merge_request, representation)
-        else
-          return if Issue.exists?(iid: representation.iid, project_id: project.id)
-
-          author_id          = user_id(representation.author, project.creator_id)
-          issue              = Issue.new
-          issue.iid          = representation.iid
-          issue.project_id   = project.id
-          issue.title        = representation.title
-          issue.description  = format_description(representation.description, representation.author)
-          issue.state        = representation.state
-          issue.milestone_id = milestone_id(representation.milestone)
-          issue.author_id    = author_id
-          issue.created_at   = representation.created_at
-          issue.updated_at   = representation.updated_at
-          issue.save!(validate: false)
-
-          issue.update(
-            label_ids: label_ids(representation.labels),
-            assignee_ids: assignee_ids(representation.assignees))
-
-          fetch_comments_conditionally(issue, representation)
-        end
-      rescue => e
-        error(:issue, representation.url, e.message)
-      end
-    end
-
-    def fetch_comments_conditionally(issuable, representation)
-      if representation.comments?
-        comments_url = "/repos/#{repo}/issues/#{issuable.iid}/comments"
-        fetch_comments(issuable, :comment, comments_url)
-      end
-    end
-
-    def fetch_comments(noteable, type, url, klass = Note)
-      while url
-        comments = Github::Client.new(options).get(url)
-
-        ActiveRecord::Base.no_touching do
-          comments.body.each do |raw|
-            begin
-              representation  = Github::Representation::Comment.new(raw, options)
-              author_id       = user_id(representation.author, project.creator_id)
-
-              note            = klass.new
-              note.project_id = project.id
-              note.noteable   = noteable
-              note.note       = format_description(representation.note, representation.author)
-              note.commit_id  = representation.commit_id
-              note.line_code  = representation.line_code
-              note.author_id  = author_id
-              note.created_at = representation.created_at
-              note.updated_at = representation.updated_at
-              note.save!(validate: false)
-            rescue => e
-              error(type, representation.url, e.message)
-            end
-          end
-        end
-
-        url = comments.rels[:next]
-      end
-    end
-
-    def fetch_releases
-      url = "/repos/#{repo}/releases"
-
-      while url
-        response = Github::Client.new(options).get(url)
-
-        response.body.each do |raw|
-          representation = Github::Representation::Release.new(raw)
-          next unless representation.valid?
-
-          release = ::Release.find_or_initialize_by(project_id: project.id, tag: representation.tag)
-          next unless release.new_record?
-
-          begin
-            release.description = representation.description
-            release.created_at  = representation.created_at
-            release.updated_at  = representation.updated_at
-            release.save!(validate: false)
-          rescue => e
-            error(:release, representation.url, e.message)
-          end
-        end
-
-        url = response.rels[:next]
-      end
-    end
-
-    def label_ids(labels)
-      labels.map { |label| cached[:label_ids][label.title] }.compact
-    end
-
-    def assignee_ids(assignees)
-      assignees.map { |assignee| user_id(assignee) }.compact
-    end
-
-    def milestone_id(milestone)
-      return unless milestone.present?
-
-      project.milestones.select(:id).find_by(iid: milestone.iid)&.id
-    end
-
-    def user_id(user, fallback_id = nil)
-      return unless user.present?
-      return cached[:user_ids][user.id] if cached[:user_ids][user.id].present?
-
-      gitlab_user_id = user_id_by_external_uid(user.id) || user_id_by_email(user.email)
-
-      cached[:gitlab_user_ids][user.id] = gitlab_user_id.present?
-      cached[:user_ids][user.id] = gitlab_user_id || fallback_id
-    end
-
-    def user_id_by_email(email)
-      return nil unless email
-
-      ::User.find_by_any_email(email)&.id
-    end
-
-    def user_id_by_external_uid(id)
-      return nil unless id
-
-      ::User.select(:id)
-            .joins(:identities)
-            .merge(::Identity.where(provider: :github, extern_uid: id))
-            .first&.id
-    end
-
-    def format_description(body, author)
-      return body if cached[:gitlab_user_ids][author.id]
-
-      "*Created by: #{author.username}*\n\n#{body}"
-    end
-
-    def expire_repository_cache
-      repository.expire_content_cache if project.repository_exists?
-    end
-
-    def keep_track_of_errors
-      return unless errors.any?
-
-      project.update_column(:import_error, {
-        message: 'The remote data could not be fully imported.',
-        errors: errors
-      }.to_json)
-    end
-
-    def error(type, url, message)
-      errors << { type: type, url: Gitlab::UrlSanitizer.sanitize(url), error: message }
-    end
-  end
-end
diff --git a/lib/github/import/issue.rb b/lib/github/import/issue.rb
deleted file mode 100644
index 171f0872666..00000000000
--- a/lib/github/import/issue.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-module Github
-  class Import
-    class Issue < ::Issue
-      self.table_name = 'issues'
-
-      self.reset_callbacks :save
-      self.reset_callbacks :create
-      self.reset_callbacks :commit
-      self.reset_callbacks :update
-      self.reset_callbacks :validate
-    end
-  end
-end
diff --git a/lib/github/import/legacy_diff_note.rb b/lib/github/import/legacy_diff_note.rb
deleted file mode 100644
index 18adff560b6..00000000000
--- a/lib/github/import/legacy_diff_note.rb
+++ /dev/null
@@ -1,12 +0,0 @@
-module Github
-  class Import
-    class LegacyDiffNote < ::LegacyDiffNote
-      self.table_name = 'notes'
-      self.store_full_sti_class = false
-
-      self.reset_callbacks :commit
-      self.reset_callbacks :update
-      self.reset_callbacks :validate
-    end
-  end
-end
diff --git a/lib/github/import/merge_request.rb b/lib/github/import/merge_request.rb
deleted file mode 100644
index c258e5d5e0e..00000000000
--- a/lib/github/import/merge_request.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-module Github
-  class Import
-    class MergeRequest < ::MergeRequest
-      self.table_name = 'merge_requests'
-
-      self.reset_callbacks :create
-      self.reset_callbacks :save
-      self.reset_callbacks :commit
-      self.reset_callbacks :update
-      self.reset_callbacks :validate
-    end
-  end
-end
diff --git a/lib/github/import/note.rb b/lib/github/import/note.rb
deleted file mode 100644
index 8cf4f30e6b7..00000000000
--- a/lib/github/import/note.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-module Github
-  class Import
-    class Note < ::Note
-      self.table_name = 'notes'
-      self.store_full_sti_class = false
-
-      self.reset_callbacks :save
-      self.reset_callbacks :commit
-      self.reset_callbacks :update
-      self.reset_callbacks :validate
-    end
-  end
-end
diff --git a/lib/github/rate_limit.rb b/lib/github/rate_limit.rb
deleted file mode 100644
index 884693d093c..00000000000
--- a/lib/github/rate_limit.rb
+++ /dev/null
@@ -1,27 +0,0 @@
-module Github
-  class RateLimit
-    SAFE_REMAINING_REQUESTS = 100
-    SAFE_RESET_TIME         = 500
-    RATE_LIMIT_URL          = '/rate_limit'.freeze
-
-    attr_reader :connection
-
-    def initialize(connection)
-      @connection = connection
-    end
-
-    def get
-      response = connection.get(RATE_LIMIT_URL)
-
-      # GitHub Rate Limit API returns 404 when the rate limit is disabled
-      return false unless response.status != 404
-
-      body      = Oj.load(response.body, class_cache: false, mode: :compat)
-      remaining = body.dig('rate', 'remaining').to_i
-      reset_in  = body.dig('rate', 'reset').to_i
-      exceed    = remaining <= SAFE_REMAINING_REQUESTS
-
-      [exceed, reset_in]
-    end
-  end
-end
diff --git a/lib/github/repositories.rb b/lib/github/repositories.rb
deleted file mode 100644
index c1c9448f305..00000000000
--- a/lib/github/repositories.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-module Github
-  class Repositories
-    attr_reader :options
-
-    def initialize(options)
-      @options = options
-    end
-
-    def fetch
-      Collection.new(options).fetch(repos_url)
-    end
-
-    private
-
-    def repos_url
-      '/user/repos'
-    end
-  end
-end
diff --git a/lib/github/representation/base.rb b/lib/github/representation/base.rb
deleted file mode 100644
index f26bdbdd546..00000000000
--- a/lib/github/representation/base.rb
+++ /dev/null
@@ -1,30 +0,0 @@
-module Github
-  module Representation
-    class Base
-      def initialize(raw, options = {})
-        @raw     = raw
-        @options = options
-      end
-
-      def id
-        raw['id']
-      end
-
-      def url
-        raw['url']
-      end
-
-      def created_at
-        raw['created_at']
-      end
-
-      def updated_at
-        raw['updated_at']
-      end
-
-      private
-
-      attr_reader :raw, :options
-    end
-  end
-end
diff --git a/lib/github/representation/branch.rb b/lib/github/representation/branch.rb
deleted file mode 100644
index 0087a3d3c4f..00000000000
--- a/lib/github/representation/branch.rb
+++ /dev/null
@@ -1,55 +0,0 @@
-module Github
-  module Representation
-    class Branch < Representation::Base
-      attr_reader :repository
-
-      def user
-        raw.dig('user', 'login') || 'unknown'
-      end
-
-      def repo?
-        raw['repo'].present?
-      end
-
-      def repo
-        return unless repo?
-
-        @repo ||= Github::Representation::Repo.new(raw['repo'])
-      end
-
-      def ref
-        raw['ref']
-      end
-
-      def sha
-        raw['sha']
-      end
-
-      def short_sha
-        Commit.truncate_sha(sha)
-      end
-
-      def valid?
-        sha.present? && ref.present?
-      end
-
-      def restore!(name)
-        repository.create_branch(name, sha)
-      rescue Gitlab::Git::Repository::InvalidRef => e
-        Rails.logger.error("#{self.class.name}: Could not restore branch #{name}: #{e}")
-      end
-
-      def remove!(name)
-        repository.delete_branch(name)
-      rescue Gitlab::Git::Repository::DeleteBranchError => e
-        Rails.logger.error("#{self.class.name}: Could not remove branch #{name}: #{e}")
-      end
-
-      private
-
-      def repository
-        @repository ||= options.fetch(:repository)
-      end
-    end
-  end
-end
diff --git a/lib/github/representation/comment.rb b/lib/github/representation/comment.rb
deleted file mode 100644
index 83bf0b5310d..00000000000
--- a/lib/github/representation/comment.rb
+++ /dev/null
@@ -1,42 +0,0 @@
-module Github
-  module Representation
-    class Comment < Representation::Base
-      def note
-        raw['body'] || ''
-      end
-
-      def author
-        @author ||= Github::Representation::User.new(raw['user'], options)
-      end
-
-      def commit_id
-        raw['commit_id']
-      end
-
-      def line_code
-        return unless on_diff?
-
-        parsed_lines = Gitlab::Diff::Parser.new.parse(diff_hunk.lines)
-        generate_line_code(parsed_lines.to_a.last)
-      end
-
-      private
-
-      def generate_line_code(line)
-        Gitlab::Git.diff_line_code(file_path, line.new_pos, line.old_pos)
-      end
-
-      def on_diff?
-        diff_hunk.present?
-      end
-
-      def diff_hunk
-        raw['diff_hunk']
-      end
-
-      def file_path
-        raw['path']
-      end
-    end
-  end
-end
diff --git a/lib/github/representation/issuable.rb b/lib/github/representation/issuable.rb
deleted file mode 100644
index 768ba3b993c..00000000000
--- a/lib/github/representation/issuable.rb
+++ /dev/null
@@ -1,37 +0,0 @@
-module Github
-  module Representation
-    class Issuable < Representation::Base
-      def iid
-        raw['number']
-      end
-
-      def title
-        raw['title']
-      end
-
-      def description
-        raw['body'] || ''
-      end
-
-      def milestone
-        return unless raw['milestone'].present?
-
-        @milestone ||= Github::Representation::Milestone.new(raw['milestone'])
-      end
-
-      def author
-        @author ||= Github::Representation::User.new(raw['user'], options)
-      end
-
-      def labels?
-        raw['labels'].any?
-      end
-
-      def labels
-        @labels ||= Array(raw['labels']).map do |label|
-          Github::Representation::Label.new(label, options)
-        end
-      end
-    end
-  end
-end
diff --git a/lib/github/representation/issue.rb b/lib/github/representation/issue.rb
deleted file mode 100644
index 4f1a02cb90f..00000000000
--- a/lib/github/representation/issue.rb
+++ /dev/null
@@ -1,27 +0,0 @@
-module Github
-  module Representation
-    class Issue < Representation::Issuable
-      def state
-        raw['state'] == 'closed' ? 'closed' : 'opened'
-      end
-
-      def comments?
-        raw['comments'] > 0
-      end
-
-      def pull_request?
-        raw['pull_request'].present?
-      end
-
-      def assigned?
-        raw['assignees'].present?
-      end
-
-      def assignees
-        @assignees ||= Array(raw['assignees']).map do |user|
-          Github::Representation::User.new(user, options)
-        end
-      end
-    end
-  end
-end
diff --git a/lib/github/representation/label.rb b/lib/github/representation/label.rb
deleted file mode 100644
index 60aa51f9569..00000000000
--- a/lib/github/representation/label.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-module Github
-  module Representation
-    class Label < Representation::Base
-      def color
-        "##{raw['color']}"
-      end
-
-      def title
-        raw['name']
-      end
-    end
-  end
-end
diff --git a/lib/github/representation/milestone.rb b/lib/github/representation/milestone.rb
deleted file mode 100644
index 917e6394ad4..00000000000
--- a/lib/github/representation/milestone.rb
+++ /dev/null
@@ -1,25 +0,0 @@
-module Github
-  module Representation
-    class Milestone < Representation::Base
-      def iid
-        raw['number']
-      end
-
-      def title
-        raw['title']
-      end
-
-      def description
-        raw['description']
-      end
-
-      def due_date
-        raw['due_on']
-      end
-
-      def state
-        raw['state'] == 'closed' ? 'closed' : 'active'
-      end
-    end
-  end
-end
diff --git a/lib/github/representation/pull_request.rb b/lib/github/representation/pull_request.rb
deleted file mode 100644
index 0171179bb0f..00000000000
--- a/lib/github/representation/pull_request.rb
+++ /dev/null
@@ -1,71 +0,0 @@
-module Github
-  module Representation
-    class PullRequest < Representation::Issuable
-      delegate :sha, to: :source_branch, prefix: true
-      delegate :sha, to: :target_branch, prefix: true
-
-      def source_project
-        project
-      end
-
-      def source_branch_name
-        # Mimic the "user:branch" displayed in the MR widget,
-        # i.e. "Request to merge rymai:add-external-mounts into master"
-        cross_project? ? "#{source_branch.user}:#{source_branch.ref}" : source_branch.ref
-      end
-
-      def target_project
-        project
-      end
-
-      def target_branch_name
-        target_branch.ref
-      end
-
-      def state
-        return 'merged' if raw['state'] == 'closed' && raw['merged_at'].present?
-        return 'closed' if raw['state'] == 'closed'
-
-        'opened'
-      end
-
-      def opened?
-        state == 'opened'
-      end
-
-      def valid?
-        source_branch.valid? && target_branch.valid?
-      end
-
-      def assigned?
-        raw['assignee'].present?
-      end
-
-      def assignee
-        return unless assigned?
-
-        @assignee ||= Github::Representation::User.new(raw['assignee'], options)
-      end
-
-      private
-
-      def project
-        @project ||= options.fetch(:project)
-      end
-
-      def source_branch
-        @source_branch ||= Representation::Branch.new(raw['head'], repository: project.repository)
-      end
-
-      def target_branch
-        @target_branch ||= Representation::Branch.new(raw['base'], repository: project.repository)
-      end
-
-      def cross_project?
-        return true unless source_branch.repo?
-
-        source_branch.repo.id != target_branch.repo.id
-      end
-    end
-  end
-end
diff --git a/lib/github/representation/release.rb b/lib/github/representation/release.rb
deleted file mode 100644
index e7e4b428c1a..00000000000
--- a/lib/github/representation/release.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-module Github
-  module Representation
-    class Release < Representation::Base
-      def description
-        raw['body']
-      end
-
-      def tag
-        raw['tag_name']
-      end
-
-      def valid?
-        !raw['draft']
-      end
-    end
-  end
-end
diff --git a/lib/github/representation/repo.rb b/lib/github/representation/repo.rb
deleted file mode 100644
index 6938aa7db05..00000000000
--- a/lib/github/representation/repo.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-module Github
-  module Representation
-    class Repo < Representation::Base
-    end
-  end
-end
diff --git a/lib/github/representation/user.rb b/lib/github/representation/user.rb
deleted file mode 100644
index 18591380e25..00000000000
--- a/lib/github/representation/user.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-module Github
-  module Representation
-    class User < Representation::Base
-      def email
-        return @email if defined?(@email)
-
-        @email = Github::User.new(username, options).get.fetch('email', nil)
-      end
-
-      def username
-        raw['login']
-      end
-    end
-  end
-end
diff --git a/lib/github/response.rb b/lib/github/response.rb
deleted file mode 100644
index 761c524b553..00000000000
--- a/lib/github/response.rb
+++ /dev/null
@@ -1,25 +0,0 @@
-module Github
-  class Response
-    attr_reader :raw, :headers, :status
-
-    def initialize(response)
-      @raw     = response
-      @headers = response.headers
-      @status  = response.status
-    end
-
-    def body
-      Oj.load(raw.body, class_cache: false, mode: :compat)
-    end
-
-    def rels
-      links = headers['Link'].to_s.split(', ').map do |link|
-        href, name = link.match(/<(.*?)>; rel="(\w+)"/).captures
-
-        [name.to_sym, href]
-      end
-
-      Hash[*links.flatten]
-    end
-  end
-end
diff --git a/lib/github/user.rb b/lib/github/user.rb
deleted file mode 100644
index f88a29e590b..00000000000
--- a/lib/github/user.rb
+++ /dev/null
@@ -1,24 +0,0 @@
-module Github
-  class User
-    attr_reader :username, :options
-
-    def initialize(username, options)
-      @username = username
-      @options  = options
-    end
-
-    def get
-      client.get(user_url).body
-    end
-
-    private
-
-    def client
-      @client ||= Github::Client.new(options)
-    end
-
-    def user_url
-      "/users/#{username}"
-    end
-  end
-end
diff --git a/lib/gitlab/auth.rb b/lib/gitlab/auth.rb
index 0ad9285c0ea..cbbc51db99e 100644
--- a/lib/gitlab/auth.rb
+++ b/lib/gitlab/auth.rb
@@ -25,7 +25,7 @@ module Gitlab
         result =
           service_request_check(login, password, project) ||
           build_access_token_check(login, password) ||
-          lfs_token_check(login, password) ||
+          lfs_token_check(login, password, project) ||
           oauth_access_token_check(login, password) ||
           personal_access_token_check(password) ||
           user_with_password_for_git(login, password) ||
@@ -146,7 +146,7 @@ module Gitlab
         end.flatten.uniq
       end
 
-      def lfs_token_check(login, password)
+      def lfs_token_check(login, password, project)
         deploy_key_matches = login.match(/\Alfs\+deploy-key-(\d+)\z/)
 
         actor =
@@ -163,6 +163,8 @@ module Gitlab
         authentication_abilities =
           if token_handler.user?
             full_authentication_abilities
+          elsif token_handler.deploy_key_pushable?(project)
+            read_write_authentication_abilities
           else
             read_authentication_abilities
           end
@@ -208,10 +210,15 @@ module Gitlab
         ]
       end
 
-      def full_authentication_abilities
+      def read_write_authentication_abilities
         read_authentication_abilities + [
           :push_code,
-          :create_container_image,
+          :create_container_image
+        ]
+      end
+
+      def full_authentication_abilities
+        read_write_authentication_abilities + [
           :admin_container_image
         ]
       end
diff --git a/lib/gitlab/background_migration/create_fork_network_memberships_range.rb b/lib/gitlab/background_migration/create_fork_network_memberships_range.rb
index c88eb9783ed..67a39d28944 100644
--- a/lib/gitlab/background_migration/create_fork_network_memberships_range.rb
+++ b/lib/gitlab/background_migration/create_fork_network_memberships_range.rb
@@ -51,10 +51,20 @@ module Gitlab
             FROM projects
             WHERE forked_project_links.forked_from_project_id = projects.id
           )
+          AND NOT EXISTS (
+            SELECT true
+            FROM forked_project_links AS parent_links
+            WHERE parent_links.forked_to_project_id = forked_project_links.forked_from_project_id
+            AND NOT EXISTS (
+              SELECT true
+              FROM projects
+              WHERE parent_links.forked_from_project_id = projects.id
+            )
+          )
           AND forked_project_links.id BETWEEN #{start_id} AND #{end_id}
         MISSING_MEMBERS
 
-        ForkNetworkMember.count_by_sql(count_sql) > 0
+        ForkedProjectLink.count_by_sql(count_sql) > 0
       end
 
       def log(message)
diff --git a/lib/gitlab/background_migration/populate_merge_requests_latest_merge_request_diff_id.rb b/lib/gitlab/background_migration/populate_merge_requests_latest_merge_request_diff_id.rb
new file mode 100644
index 00000000000..7e109e96e73
--- /dev/null
+++ b/lib/gitlab/background_migration/populate_merge_requests_latest_merge_request_diff_id.rb
@@ -0,0 +1,30 @@
+module Gitlab
+  module BackgroundMigration
+    class PopulateMergeRequestsLatestMergeRequestDiffId
+      BATCH_SIZE = 1_000
+
+      class MergeRequest < ActiveRecord::Base
+        self.table_name = 'merge_requests'
+
+        include ::EachBatch
+      end
+
+      def perform(start_id, stop_id)
+        update = '
+          latest_merge_request_diff_id = (
+            SELECT MAX(id)
+            FROM merge_request_diffs
+            WHERE merge_requests.id = merge_request_diffs.merge_request_id
+          )'.squish
+
+        MergeRequest
+          .where(id: start_id..stop_id)
+          .where(latest_merge_request_diff_id: nil)
+          .each_batch(of: BATCH_SIZE) do |relation|
+
+          relation.update_all(update)
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/bare_repository_import/importer.rb b/lib/gitlab/bare_repository_import/importer.rb
new file mode 100644
index 00000000000..196de667805
--- /dev/null
+++ b/lib/gitlab/bare_repository_import/importer.rb
@@ -0,0 +1,101 @@
+module Gitlab
+  module BareRepositoryImport
+    class Importer
+      NoAdminError = Class.new(StandardError)
+
+      def self.execute(import_path)
+        import_path << '/' unless import_path.ends_with?('/')
+        repos_to_import = Dir.glob(import_path + '**/*.git')
+
+        unless user = User.admins.order_id_asc.first
+          raise NoAdminError.new('No admin user found to import repositories')
+        end
+
+        repos_to_import.each do |repo_path|
+          bare_repo = Gitlab::BareRepositoryImport::Repository.new(import_path, repo_path)
+
+          if bare_repo.hashed? || bare_repo.wiki?
+            log " * Skipping repo #{bare_repo.repo_path}".color(:yellow)
+
+            next
+          end
+
+          log "Processing #{repo_path}".color(:yellow)
+
+          new(user, bare_repo).create_project_if_needed
+        end
+      end
+
+      attr_reader :user, :project_name, :bare_repo
+
+      delegate :log, to: :class
+      delegate :project_name, :project_full_path, :group_path, :repo_path, :wiki_path, to: :bare_repo
+
+      def initialize(user, bare_repo)
+        @user = user
+        @bare_repo = bare_repo
+      end
+
+      def create_project_if_needed
+        if project = Project.find_by_full_path(project_full_path)
+          log " * #{project.name} (#{project_full_path}) exists"
+
+          return project
+        end
+
+        create_project
+      end
+
+      private
+
+      def create_project
+        group = find_or_create_groups
+
+        project = Projects::CreateService.new(user,
+                                              name: project_name,
+                                              path: project_name,
+                                              skip_disk_validation: true,
+                                              namespace_id: group&.id).execute
+
+        if project.persisted? && mv_repo(project)
+          log " * Created #{project.name} (#{project_full_path})".color(:green)
+
+          ProjectCacheWorker.perform_async(project.id)
+        else
+          log " * Failed trying to create #{project.name} (#{project_full_path})".color(:red)
+          log "   Errors: #{project.errors.messages}".color(:red) if project.errors.any?
+        end
+
+        project
+      end
+
+      def mv_repo(project)
+        FileUtils.mv(repo_path, File.join(project.repository_storage_path, project.disk_path + '.git'))
+
+        if bare_repo.wiki_exists?
+          FileUtils.mv(wiki_path, File.join(project.repository_storage_path, project.disk_path + '.wiki.git'))
+        end
+
+        true
+      rescue => e
+        log " * Failed to move repo: #{e.message}".color(:red)
+
+        false
+      end
+
+      def find_or_create_groups
+        return nil unless group_path.present?
+
+        log " * Using namespace: #{group_path}"
+
+        Groups::NestedCreateService.new(user, group_path: group_path).execute
+      end
+
+      # This is called from within a rake task only used by Admins, so allow writing
+      # to STDOUT
+      def self.log(message)
+        puts message # rubocop:disable Rails/Output
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/bare_repository_import/repository.rb b/lib/gitlab/bare_repository_import/repository.rb
new file mode 100644
index 00000000000..8574ac6eb30
--- /dev/null
+++ b/lib/gitlab/bare_repository_import/repository.rb
@@ -0,0 +1,42 @@
+module Gitlab
+  module BareRepositoryImport
+    class Repository
+      attr_reader :group_path, :project_name, :repo_path
+
+      def initialize(root_path, repo_path)
+        @root_path = root_path
+        @repo_path = repo_path
+
+        # Split path into 'all/the/namespaces' and 'project_name'
+        @group_path, _, @project_name = repo_relative_path.rpartition('/')
+      end
+
+      def wiki_exists?
+        File.exist?(wiki_path)
+      end
+
+      def wiki?
+        @wiki ||= repo_path.end_with?('.wiki.git')
+      end
+
+      def wiki_path
+        @wiki_path ||= repo_path.sub(/\.git$/, '.wiki.git')
+      end
+
+      def hashed?
+        @hashed ||= group_path.start_with?('@hashed')
+      end
+
+      def project_full_path
+        @project_full_path ||= "#{group_path}/#{project_name}"
+      end
+
+      private
+
+      def repo_relative_path
+        # Remove root path and `.git` at the end
+        repo_path[@root_path.size...-4]
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/bare_repository_importer.rb b/lib/gitlab/bare_repository_importer.rb
deleted file mode 100644
index 1d98d187805..00000000000
--- a/lib/gitlab/bare_repository_importer.rb
+++ /dev/null
@@ -1,97 +0,0 @@
-module Gitlab
-  class BareRepositoryImporter
-    NoAdminError = Class.new(StandardError)
-
-    def self.execute
-      Gitlab.config.repositories.storages.each do |storage_name, repository_storage|
-        git_base_path = repository_storage['path']
-        repos_to_import = Dir.glob(git_base_path + '/**/*.git')
-
-        repos_to_import.each do |repo_path|
-          if repo_path.end_with?('.wiki.git')
-            log " * Skipping wiki repo"
-            next
-          end
-
-          log "Processing #{repo_path}".color(:yellow)
-
-          repo_relative_path = repo_path[repository_storage['path'].length..-1]
-                                 .sub(/^\//, '') # Remove leading `/`
-                                 .sub(/\.git$/, '') # Remove `.git` at the end
-          new(storage_name, repo_relative_path).create_project_if_needed
-        end
-      end
-    end
-
-    attr_reader :storage_name, :full_path, :group_path, :project_path, :user
-    delegate :log, to: :class
-
-    def initialize(storage_name, repo_path)
-      @storage_name = storage_name
-      @full_path = repo_path
-
-      unless @user = User.admins.order_id_asc.first
-        raise NoAdminError.new('No admin user found to import repositories')
-      end
-
-      @group_path, @project_path = File.split(repo_path)
-      @group_path = nil if @group_path == '.'
-    end
-
-    def create_project_if_needed
-      if project = Project.find_by_full_path(full_path)
-        log " * #{project.name} (#{full_path}) exists"
-        return project
-      end
-
-      create_project
-    end
-
-    private
-
-    def create_project
-      group = find_or_create_group
-
-      project_params = {
-        name: project_path,
-        path: project_path,
-        repository_storage: storage_name,
-        namespace_id: group&.id,
-        skip_disk_validation: true
-      }
-
-      project = Projects::CreateService.new(user, project_params).execute
-
-      if project.persisted?
-        log " * Created #{project.name} (#{full_path})".color(:green)
-        ProjectCacheWorker.perform_async(project.id)
-      else
-        log " * Failed trying to create #{project.name} (#{full_path})".color(:red)
-        log "   Errors: #{project.errors.messages}".color(:red)
-      end
-
-      project
-    end
-
-    def find_or_create_group
-      return nil unless group_path
-
-      if namespace = Namespace.find_by_full_path(group_path)
-        log " * Namespace #{group_path} exists.".color(:green)
-        return namespace
-      end
-
-      log " * Creating Group: #{group_path}"
-      Groups::NestedCreateService.new(user, group_path: group_path).execute
-    end
-
-    # This is called from within a rake task only used by Admins, so allow writing
-    # to STDOUT
-    #
-    # rubocop:disable Rails/Output
-    def self.log(message)
-      puts message
-    end
-    # rubocop:enable Rails/Output
-  end
-end
diff --git a/lib/gitlab/checks/change_access.rb b/lib/gitlab/checks/change_access.rb
index b6805230348..ef92fc5a0a0 100644
--- a/lib/gitlab/checks/change_access.rb
+++ b/lib/gitlab/checks/change_access.rb
@@ -12,7 +12,8 @@ module Gitlab
         change_existing_tags: 'You are not allowed to change existing tags on this project.',
         update_protected_tag: 'Protected tags cannot be updated.',
         delete_protected_tag: 'Protected tags cannot be deleted.',
-        create_protected_tag: 'You are not allowed to create this tag as it is protected.'
+        create_protected_tag: 'You are not allowed to create this tag as it is protected.',
+        lfs_objects_missing: 'LFS objects are missing. Ensure LFS is properly set up or try a manual "git lfs push --all".'
       }.freeze
 
       attr_reader :user_access, :project, :skip_authorization, :protocol
@@ -36,6 +37,7 @@ module Gitlab
         push_checks
         branch_checks
         tag_checks
+        lfs_objects_exist_check
 
         true
       end
@@ -136,6 +138,14 @@ module Gitlab
       def matching_merge_request?
         Checks::MatchingMergeRequest.new(@newrev, @branch_name, @project).match?
       end
+
+      def lfs_objects_exist_check
+        lfs_check = Checks::LfsIntegrity.new(project, @newrev)
+
+        if lfs_check.objects_missing?
+          raise GitAccess::UnauthorizedError, ERROR_MESSAGES[:lfs_objects_missing]
+        end
+      end
     end
   end
 end
diff --git a/lib/gitlab/checks/lfs_integrity.rb b/lib/gitlab/checks/lfs_integrity.rb
new file mode 100644
index 00000000000..f7276a380dc
--- /dev/null
+++ b/lib/gitlab/checks/lfs_integrity.rb
@@ -0,0 +1,27 @@
+module Gitlab
+  module Checks
+    class LfsIntegrity
+      REV_LIST_OBJECT_LIMIT = 2_000
+
+      def initialize(project, newrev)
+        @project = project
+        @newrev = newrev
+      end
+
+      def objects_missing?
+        return false unless @newrev && @project.lfs_enabled?
+
+        new_lfs_pointers = Gitlab::Git::LfsChanges.new(@project.repository, @newrev).new_pointers(object_limit: REV_LIST_OBJECT_LIMIT)
+
+        return false unless new_lfs_pointers.present?
+
+        existing_count = @project.lfs_storage_project
+                                 .lfs_objects
+                                 .where(oid: new_lfs_pointers.map(&:lfs_oid))
+                                 .count
+
+        existing_count != new_lfs_pointers.count
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/ci/status/build/failed_allowed.rb b/lib/gitlab/ci/status/build/failed_allowed.rb
index d71e63e73eb..dc90f398c7e 100644
--- a/lib/gitlab/ci/status/build/failed_allowed.rb
+++ b/lib/gitlab/ci/status/build/failed_allowed.rb
@@ -8,7 +8,7 @@ module Gitlab
           end
 
           def icon
-            'warning'
+            'status_warning'
           end
 
           def group
diff --git a/lib/gitlab/daemon.rb b/lib/gitlab/daemon.rb
index dfd17e35707..f07fd1dfdda 100644
--- a/lib/gitlab/daemon.rb
+++ b/lib/gitlab/daemon.rb
@@ -43,7 +43,7 @@ module Gitlab
 
         if thread
           thread.wakeup if thread.alive?
-          thread.join
+          thread.join unless Thread.current == thread
           @thread = nil
         end
       end
diff --git a/lib/gitlab/database.rb b/lib/gitlab/database.rb
index 43a00d6cedb..cd7b4c043da 100644
--- a/lib/gitlab/database.rb
+++ b/lib/gitlab/database.rb
@@ -108,20 +108,41 @@ module Gitlab
       end
     end
 
-    def self.bulk_insert(table, rows)
+    # Bulk inserts a number of rows into a table, optionally returning their
+    # IDs.
+    #
+    # table - The name of the table to insert the rows into.
+    # rows - An Array of Hash instances, each mapping the columns to their
+    #        values.
+    # return_ids - When set to true the return value will be an Array of IDs of
+    #              the inserted rows, this only works on PostgreSQL.
+    def self.bulk_insert(table, rows, return_ids: false)
       return if rows.empty?
 
       keys = rows.first.keys
       columns = keys.map { |key| connection.quote_column_name(key) }
+      return_ids = false if mysql?
 
       tuples = rows.map do |row|
         row.values_at(*keys).map { |value| connection.quote(value) }
       end
 
-      connection.execute <<-EOF
+      sql = <<-EOF
         INSERT INTO #{table} (#{columns.join(', ')})
         VALUES #{tuples.map { |tuple| "(#{tuple.join(', ')})" }.join(', ')}
       EOF
+
+      if return_ids
+        sql << 'RETURNING id'
+      end
+
+      result = connection.execute(sql)
+
+      if return_ids
+        result.values.map { |tuple| tuple[0].to_i }
+      else
+        []
+      end
     end
 
     def self.sanitize_timestamp(timestamp)
diff --git a/lib/gitlab/database/grant.rb b/lib/gitlab/database/grant.rb
index aee3981e79a..9f76967fc77 100644
--- a/lib/gitlab/database/grant.rb
+++ b/lib/gitlab/database/grant.rb
@@ -6,28 +6,36 @@ module Gitlab
         if Database.postgresql?
           'information_schema.role_table_grants'
         else
-          'mysql.user'
+          'information_schema.schema_privileges'
         end
 
-      def self.scope_to_current_user
-        if Database.postgresql?
-          where('grantee = user')
-        else
-          where("CONCAT(User, '@', Host) = current_user()")
-        end
-      end
-
       # Returns true if the current user can create and execute triggers on the
       # given table.
       def self.create_and_execute_trigger?(table)
         priv =
           if Database.postgresql?
             where(privilege_type: 'TRIGGER', table_name: table)
+              .where('grantee = user')
           else
-            where(Trigger_priv: 'Y')
+            queries = [
+              Grant.select(1)
+                .from('information_schema.user_privileges')
+                .where("PRIVILEGE_TYPE = 'SUPER'")
+                .where("GRANTEE = CONCAT('\\'', REPLACE(CURRENT_USER(), '@', '\\'@\\''), '\\'')"),
+
+              Grant.select(1)
+                .from('information_schema.schema_privileges')
+                .where("PRIVILEGE_TYPE = 'TRIGGER'")
+                .where('TABLE_SCHEMA = ?', Gitlab::Database.database_name)
+                .where("GRANTEE = CONCAT('\\'', REPLACE(CURRENT_USER(), '@', '\\'@\\''), '\\'')")
+            ]
+
+            union = SQL::Union.new(queries).to_sql
+
+            Grant.from("(#{union}) privs")
           end
 
-        priv.scope_to_current_user.any?
+        priv.any?
       end
     end
   end
diff --git a/lib/gitlab/ee_compat_check.rb b/lib/gitlab/ee_compat_check.rb
index 0ea534a5fd0..efc2e46d289 100644
--- a/lib/gitlab/ee_compat_check.rb
+++ b/lib/gitlab/ee_compat_check.rb
@@ -193,7 +193,7 @@ module Gitlab
           # Repository is initially cloned with a depth of 20 so we need to fetch
           # deeper in the case the branch has more than 20 commits on top of master
           fetch(branch: branch, depth: depth)
-          fetch(branch: 'master', depth: depth)
+          fetch(branch: 'master', depth: depth, remote: DEFAULT_CE_PROJECT_URL)
 
           merge_base_found?
         end
@@ -201,10 +201,10 @@ module Gitlab
       raise "\n#{branch} is too far behind master, please rebase it!\n" unless success
     end
 
-    def fetch(branch:, depth:)
+    def fetch(branch:, depth:, remote: 'origin')
       step(
         "Fetching deeper...",
-        %W[git fetch --depth=#{depth} --prune origin +refs/heads/#{branch}:refs/remotes/origin/#{branch}]
+        %W[git fetch --depth=#{depth} --prune #{remote} +refs/heads/#{branch}:refs/remotes/origin/#{branch}]
       ) do |output, status|
         raise "Fetch failed: #{output}" unless status.zero?
       end
diff --git a/lib/gitlab/gcp/model.rb b/lib/gitlab/gcp/model.rb
deleted file mode 100644
index 195391f0e3c..00000000000
--- a/lib/gitlab/gcp/model.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-module Gitlab
-  module Gcp
-    module Model
-      def table_name_prefix
-        "gcp_"
-      end
-
-      def model_name
-        @model_name ||= ActiveModel::Name.new(self, nil, self.name.split("::").last)
-      end
-    end
-  end
-end
diff --git a/lib/gitlab/git/operation_service.rb b/lib/gitlab/git/operation_service.rb
index ab94ba8a73a..e36d5410431 100644
--- a/lib/gitlab/git/operation_service.rb
+++ b/lib/gitlab/git/operation_service.rb
@@ -72,7 +72,7 @@ module Gitlab
 
       # Whenever `start_branch_name` is passed, if `branch_name` doesn't exist,
       # it would be created from `start_branch_name`.
-      # If `start_project` is passed, and the branch doesn't exist,
+      # If `start_repository` is passed, and the branch doesn't exist,
       # it would try to find the commits from it instead of current repository.
       def with_branch(
         branch_name,
@@ -80,15 +80,13 @@ module Gitlab
         start_repository: repository,
         &block)
 
-        # Refactoring aid
-        unless start_repository.is_a?(Gitlab::Git::Repository)
-          raise "expected a Gitlab::Git::Repository, got #{start_repository}"
-        end
+        Gitlab::Git.check_namespace!(start_repository)
+        start_repository = RemoteRepository.new(start_repository) unless start_repository.is_a?(RemoteRepository)
 
         start_branch_name = nil if start_repository.empty_repo?
 
         if start_branch_name && !start_repository.branch_exists?(start_branch_name)
-          raise ArgumentError, "Cannot find branch #{start_branch_name} in #{start_repository.full_path}"
+          raise ArgumentError, "Cannot find branch #{start_branch_name} in #{start_repository.relative_path}"
         end
 
         update_branch_with_hooks(branch_name) do
diff --git a/lib/gitlab/git/remote_repository.rb b/lib/gitlab/git/remote_repository.rb
new file mode 100644
index 00000000000..3685aa20669
--- /dev/null
+++ b/lib/gitlab/git/remote_repository.rb
@@ -0,0 +1,82 @@
+module Gitlab
+  module Git
+    #
+    # When a Gitaly call involves two repositories instead of one we cannot
+    # assume that both repositories are on the same Gitaly server. In this
+    # case we need to make a distinction between the repository that the
+    # call is being made on (a Repository instance), and the "other"
+    # repository (a RemoteRepository instance). This is the reason why we
+    # have the RemoteRepository class in Gitlab::Git.
+    #
+    # When you make changes, be aware that gitaly-ruby sub-classes this
+    # class.
+    #
+    class RemoteRepository
+      attr_reader :path, :relative_path, :gitaly_repository
+
+      def initialize(repository)
+        @relative_path = repository.relative_path
+        @gitaly_repository = repository.gitaly_repository
+
+        # These instance variables will not be available in gitaly-ruby, where
+        # we have no disk access to this repository.
+        @repository = repository
+        @path = repository.path
+      end
+
+      def empty_repo?
+        # We will override this implementation in gitaly-ruby because we cannot
+        # use '@repository' there.
+        @repository.empty_repo?
+      end
+
+      def commit_id(revision)
+        # We will override this implementation in gitaly-ruby because we cannot
+        # use '@repository' there.
+        @repository.commit(revision)&.sha
+      end
+
+      def branch_exists?(name)
+        # We will override this implementation in gitaly-ruby because we cannot
+        # use '@repository' there.
+        @repository.branch_exists?(name)
+      end
+
+      # Compares self to a Gitlab::Git::Repository. This implementation uses
+      # 'self.gitaly_repository' so that it will also work in the
+      # GitalyRemoteRepository subclass defined in gitaly-ruby.
+      def same_repository?(other_repository)
+        gitaly_repository.storage_name == other_repository.storage &&
+          gitaly_repository.relative_path == other_repository.relative_path
+      end
+
+      def fetch_env
+        gitaly_ssh = File.absolute_path(File.join(Gitlab.config.gitaly.client_path, 'gitaly-ssh'))
+        gitaly_address = gitaly_client.address(storage)
+        gitaly_token = gitaly_client.token(storage)
+
+        request = Gitaly::SSHUploadPackRequest.new(repository: gitaly_repository)
+        env = {
+          'GITALY_ADDRESS' => gitaly_address,
+          'GITALY_PAYLOAD' => request.to_json,
+          'GITALY_WD' => Dir.pwd,
+          'GIT_SSH_COMMAND' => "#{gitaly_ssh} upload-pack"
+        }
+        env['GITALY_TOKEN'] = gitaly_token if gitaly_token.present?
+
+        env
+      end
+
+      private
+
+      # Must return an object that responds to 'address' and 'storage'.
+      def gitaly_client
+        Gitlab::GitalyClient
+      end
+
+      def storage
+        gitaly_repository.storage_name
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/git/repository.rb b/lib/gitlab/git/repository.rb
index 182ffc96ef9..cfb88a0c12b 100644
--- a/lib/gitlab/git/repository.rb
+++ b/lib/gitlab/git/repository.rb
@@ -58,7 +58,7 @@ module Gitlab
       # Rugged repo object
       attr_reader :rugged
 
-      attr_reader :storage, :gl_repository, :relative_path, :gitaly_resolver
+      attr_reader :storage, :gl_repository, :relative_path
 
       # This initializer method is only used on the client side (gitlab-ce).
       # Gitaly-ruby uses a different initializer.
@@ -66,7 +66,6 @@ module Gitlab
         @storage = storage
         @relative_path = relative_path
         @gl_repository = gl_repository
-        @gitaly_resolver = Gitlab::GitalyClient
 
         storage_path = Gitlab.config.repositories.storages[@storage]['path']
         @path = File.join(storage_path, @relative_path)
@@ -105,7 +104,7 @@ module Gitlab
       end
 
       def exists?
-        Gitlab::GitalyClient.migrate(:repository_exists) do |enabled|
+        Gitlab::GitalyClient.migrate(:repository_exists, status: Gitlab::GitalyClient::MigrationStatus::OPT_OUT) do |enabled|
           if enabled
             gitaly_repository_client.exists?
           else
@@ -920,6 +919,11 @@ module Gitlab
         false
       end
 
+      # Returns true if a remote exists.
+      def remote_exists?(name)
+        rugged.remotes[name].present?
+      end
+
       # Update the specified remote using the values in the +options+ hash
       #
       # Example
@@ -1009,23 +1013,22 @@ module Gitlab
 
       def with_repo_branch_commit(start_repository, start_branch_name)
         Gitlab::Git.check_namespace!(start_repository)
+        start_repository = RemoteRepository.new(start_repository) unless start_repository.is_a?(RemoteRepository)
 
         return yield nil if start_repository.empty_repo?
 
-        if start_repository == self
+        if start_repository.same_repository?(self)
           yield commit(start_branch_name)
         else
-          start_commit = start_repository.commit(start_branch_name)
-
-          return yield nil unless start_commit
+          start_commit_id = start_repository.commit_id(start_branch_name)
 
-          sha = start_commit.sha
+          return yield nil unless start_commit_id
 
-          if branch_commit = commit(sha)
+          if branch_commit = commit(start_commit_id)
             yield branch_commit
           else
             with_repo_tmp_commit(
-              start_repository, start_branch_name, sha) do |tmp_commit|
+              start_repository, start_branch_name, start_commit_id) do |tmp_commit|
               yield tmp_commit
             end
           end
@@ -1044,7 +1047,7 @@ module Gitlab
         delete_refs(tmp_ref) if tmp_ref
       end
 
-      def fetch_source_branch(source_repository, source_branch, local_ref)
+      def fetch_source_branch!(source_repository, source_branch, local_ref)
         with_repo_branch_commit(source_repository, source_branch) do |commit|
           if commit
             write_ref(local_ref, commit.sha)
@@ -1082,6 +1085,9 @@ module Gitlab
       end
 
       def fetch_ref(source_repository, source_ref:, target_ref:)
+        Gitlab::Git.check_namespace!(source_repository)
+        source_repository = RemoteRepository.new(source_repository) unless source_repository.is_a?(RemoteRepository)
+
         message, status = GitalyClient.migrate(:fetch_ref) do |is_enabled|
           if is_enabled
             gitaly_fetch_ref(source_repository, source_ref: source_ref, target_ref: target_ref)
@@ -1615,22 +1621,9 @@ module Gitlab
       end
 
       def gitaly_fetch_ref(source_repository, source_ref:, target_ref:)
-        gitaly_ssh = File.absolute_path(File.join(Gitlab.config.gitaly.client_path, 'gitaly-ssh'))
-        gitaly_address = gitaly_resolver.address(source_repository.storage)
-        gitaly_token = gitaly_resolver.token(source_repository.storage)
-
-        request = Gitaly::SSHUploadPackRequest.new(repository: source_repository.gitaly_repository)
-        env = {
-          'GITALY_ADDRESS' => gitaly_address,
-          'GITALY_PAYLOAD' => request.to_json,
-          'GITALY_WD' => Dir.pwd,
-          'GIT_SSH_COMMAND' => "#{gitaly_ssh} upload-pack"
-        }
-        env['GITALY_TOKEN'] = gitaly_token if gitaly_token.present?
-
         args = %W(fetch --no-tags -f ssh://gitaly/internal.git #{source_ref}:#{target_ref})
 
-        run_git(args, env: env)
+        run_git(args, env: source_repository.fetch_env)
       end
 
       def gitaly_ff_merge(user, source_sha, target_branch)
diff --git a/lib/gitlab/git/wiki.rb b/lib/gitlab/git/wiki.rb
index fe901d049d4..022d1f249a9 100644
--- a/lib/gitlab/git/wiki.rb
+++ b/lib/gitlab/git/wiki.rb
@@ -48,15 +48,24 @@ module Gitlab
       end
 
       def update_page(page_path, title, format, content, commit_details)
-        assert_type!(format, Symbol)
-        assert_type!(commit_details, CommitDetails)
-
-        gollum_wiki.update_page(gollum_page_by_path(page_path), title, format, content, commit_details.to_h)
-        nil
+        @repository.gitaly_migrate(:wiki_update_page) do |is_enabled|
+          if is_enabled
+            gitaly_update_page(page_path, title, format, content, commit_details)
+            gollum_wiki.clear_cache
+          else
+            gollum_update_page(page_path, title, format, content, commit_details)
+          end
+        end
       end
 
       def pages
-        gollum_wiki.pages.map { |gollum_page| new_page(gollum_page) }
+        @repository.gitaly_migrate(:wiki_get_all_pages) do |is_enabled|
+          if is_enabled
+            gitaly_get_all_pages
+          else
+            gollum_get_all_pages
+          end
+        end
       end
 
       def page(title:, version: nil, dir: nil)
@@ -149,6 +158,14 @@ module Gitlab
         nil
       end
 
+      def gollum_update_page(page_path, title, format, content, commit_details)
+        assert_type!(format, Symbol)
+        assert_type!(commit_details, CommitDetails)
+
+        gollum_wiki.update_page(gollum_page_by_path(page_path), title, format, content, commit_details.to_h)
+        nil
+      end
+
       def gollum_find_page(title:, version: nil, dir: nil)
         if version
           version = Gitlab::Git::Commit.find(@repository, version).id
@@ -168,10 +185,18 @@ module Gitlab
         Gitlab::Git::WikiFile.new(gollum_file)
       end
 
+      def gollum_get_all_pages
+        gollum_wiki.pages.map { |gollum_page| new_page(gollum_page) }
+      end
+
       def gitaly_write_page(name, format, content, commit_details)
         gitaly_wiki_client.write_page(name, format, content, commit_details)
       end
 
+      def gitaly_update_page(page_path, title, format, content, commit_details)
+        gitaly_wiki_client.update_page(page_path, title, format, content, commit_details)
+      end
+
       def gitaly_delete_page(page_path, commit_details)
         gitaly_wiki_client.delete_page(page_path, commit_details)
       end
@@ -189,6 +214,12 @@ module Gitlab
 
         Gitlab::Git::WikiFile.new(wiki_file)
       end
+
+      def gitaly_get_all_pages
+        gitaly_wiki_client.get_all_pages.map do |wiki_page, version|
+          Gitlab::Git::WikiPage.new(wiki_page, version)
+        end
+      end
     end
   end
 end
diff --git a/lib/gitlab/gitaly_client/attributes_bag.rb b/lib/gitlab/gitaly_client/attributes_bag.rb
new file mode 100644
index 00000000000..198a1de91c7
--- /dev/null
+++ b/lib/gitlab/gitaly_client/attributes_bag.rb
@@ -0,0 +1,31 @@
+module Gitlab
+  module GitalyClient
+    # This module expects an `ATTRS` const to be defined on the subclass
+    # See GitalyClient::WikiFile for an example
+    module AttributesBag
+      extend ActiveSupport::Concern
+
+      included do
+        attr_accessor(*const_get(:ATTRS))
+      end
+
+      def initialize(params)
+        params = params.with_indifferent_access
+
+        attributes.each do |attr|
+          instance_variable_set("@#{attr}", params[attr])
+        end
+      end
+
+      def ==(other)
+        attributes.all? do |field|
+          instance_variable_get("@#{field}") == other.instance_variable_get("@#{field}")
+        end
+      end
+
+      def attributes
+        self.class.const_get(:ATTRS)
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/gitaly_client/diff.rb b/lib/gitlab/gitaly_client/diff.rb
index 54df6304865..d98a0ce988f 100644
--- a/lib/gitlab/gitaly_client/diff.rb
+++ b/lib/gitlab/gitaly_client/diff.rb
@@ -1,21 +1,9 @@
 module Gitlab
   module GitalyClient
     class Diff
-      FIELDS = %i(from_path to_path old_mode new_mode from_id to_id patch overflow_marker collapsed).freeze
+      ATTRS = %i(from_path to_path old_mode new_mode from_id to_id patch overflow_marker collapsed).freeze
 
-      attr_accessor(*FIELDS)
-
-      def initialize(params)
-        params.each do |key, val|
-          public_send(:"#{key}=", val) # rubocop:disable GitlabSecurity/PublicSend
-        end
-      end
-
-      def ==(other)
-        FIELDS.all? do |field|
-          public_send(field) == other.public_send(field) # rubocop:disable GitlabSecurity/PublicSend
-        end
-      end
+      include AttributesBag
     end
   end
 end
diff --git a/lib/gitlab/gitaly_client/diff_stitcher.rb b/lib/gitlab/gitaly_client/diff_stitcher.rb
index 65d81dc5d46..da243ee2d1a 100644
--- a/lib/gitlab/gitaly_client/diff_stitcher.rb
+++ b/lib/gitlab/gitaly_client/diff_stitcher.rb
@@ -12,7 +12,7 @@ module Gitlab
 
         @rpc_response.each do |diff_msg|
           if current_diff.nil?
-            diff_params = diff_msg.to_h.slice(*GitalyClient::Diff::FIELDS)
+            diff_params = diff_msg.to_h.slice(*GitalyClient::Diff::ATTRS)
             # gRPC uses frozen strings by default, and we need to have an unfrozen string as it
             # gets processed further down the line. So we unfreeze the first chunk of the patch
             # in case it's the only chunk we receive for this diff.
diff --git a/lib/gitlab/gitaly_client/wiki_file.rb b/lib/gitlab/gitaly_client/wiki_file.rb
index a2e415864e6..47c60c92484 100644
--- a/lib/gitlab/gitaly_client/wiki_file.rb
+++ b/lib/gitlab/gitaly_client/wiki_file.rb
@@ -1,17 +1,9 @@
 module Gitlab
   module GitalyClient
     class WikiFile
-      FIELDS = %i(name mime_type path raw_data).freeze
+      ATTRS = %i(name mime_type path raw_data).freeze
 
-      attr_accessor(*FIELDS)
-
-      def initialize(params)
-        params = params.with_indifferent_access
-
-        FIELDS.each do |field|
-          instance_variable_set("@#{field}", params[field])
-        end
-      end
+      include AttributesBag
     end
   end
 end
diff --git a/lib/gitlab/gitaly_client/wiki_page.rb b/lib/gitlab/gitaly_client/wiki_page.rb
index 8226278d5f6..7339468e911 100644
--- a/lib/gitlab/gitaly_client/wiki_page.rb
+++ b/lib/gitlab/gitaly_client/wiki_page.rb
@@ -1,16 +1,16 @@
 module Gitlab
   module GitalyClient
     class WikiPage
-      FIELDS = %i(title format url_path path name historical raw_data).freeze
+      ATTRS = %i(title format url_path path name historical raw_data).freeze
 
-      attr_accessor(*FIELDS)
+      include AttributesBag
 
       def initialize(params)
-        params = params.with_indifferent_access
+        super
 
-        FIELDS.each do |field|
-          instance_variable_set("@#{field}", params[field])
-        end
+        # All gRPC strings in a response are frozen, so we get an unfrozen
+        # version here so appending to `raw_data` doesn't blow up.
+        @raw_data = @raw_data.dup
       end
 
       def historical?
diff --git a/lib/gitlab/gitaly_client/wiki_service.rb b/lib/gitlab/gitaly_client/wiki_service.rb
index 15f0f30d303..8f05f40365e 100644
--- a/lib/gitlab/gitaly_client/wiki_service.rb
+++ b/lib/gitlab/gitaly_client/wiki_service.rb
@@ -37,6 +37,31 @@ module Gitlab
         end
       end
 
+      def update_page(page_path, title, format, content, commit_details)
+        request = Gitaly::WikiUpdatePageRequest.new(
+          repository: @gitaly_repo,
+          page_path: GitalyClient.encode(page_path),
+          title: GitalyClient.encode(title),
+          format: format.to_s,
+          commit_details: gitaly_commit_details(commit_details)
+        )
+
+        strio = StringIO.new(content)
+
+        enum = Enumerator.new do |y|
+          until strio.eof?
+            chunk = strio.read(MAX_MSG_SIZE)
+            request.content = GitalyClient.encode(chunk)
+
+            y.yield request
+
+            request = Gitaly::WikiUpdatePageRequest.new
+          end
+        end
+
+        GitalyClient.call(@repository.storage, :wiki_service, :wiki_update_page, enum)
+      end
+
       def delete_page(page_path, commit_details)
         request = Gitaly::WikiDeletePageRequest.new(
           repository: @gitaly_repo,
@@ -56,28 +81,23 @@ module Gitlab
         )
 
         response = GitalyClient.call(@repository.storage, :wiki_service, :wiki_find_page, request)
-        wiki_page = version = nil
 
-        response.each do |message|
-          page = message.page
-          next unless page
+        wiki_page_from_iterator(response)
+      end
 
-          if wiki_page
-            wiki_page.raw_data << page.raw_data
-          else
-            wiki_page = GitalyClient::WikiPage.new(page.to_h)
-            # All gRPC strings in a response are frozen, so we get
-            # an unfrozen version here so appending in the else clause below doesn't blow up.
-            wiki_page.raw_data = wiki_page.raw_data.dup
+      def get_all_pages
+        request = Gitaly::WikiGetAllPagesRequest.new(repository: @gitaly_repo)
+        response = GitalyClient.call(@repository.storage, :wiki_service, :wiki_get_all_pages, request)
+        pages = []
 
-            version = Gitlab::Git::WikiPageVersion.new(
-              Gitlab::Git::Commit.decorate(@repository, page.version.commit),
-              page.version.format
-            )
-          end
+        loop do
+          page, version = wiki_page_from_iterator(response) { |message| message.end_of_page }
+
+          break unless page && version
+          pages << [page, version]
         end
 
-        [wiki_page, version]
+        pages
       end
 
       def find_file(name, revision)
@@ -108,6 +128,35 @@ module Gitlab
 
       private
 
+      # If a block is given and the yielded value is true, iteration will be
+      # stopped early at that point; else the iterator is consumed entirely.
+      # The iterator is traversed with `next` to allow resuming the iteration.
+      def wiki_page_from_iterator(iterator)
+        wiki_page = version = nil
+
+        while message = iterator.next
+          break if block_given? && yield(message)
+
+          page = message.page
+          next unless page
+
+          if wiki_page
+            wiki_page.raw_data << page.raw_data
+          else
+            wiki_page = GitalyClient::WikiPage.new(page.to_h)
+
+            version = Gitlab::Git::WikiPageVersion.new(
+              Gitlab::Git::Commit.decorate(@repository, page.version.commit),
+              page.version.format
+            )
+          end
+        end
+
+        [wiki_page, version]
+      rescue StopIteration
+        [wiki_page, version]
+      end
+
       def gitaly_commit_details(commit_details)
         Gitaly::WikiCommitDetails.new(
           name: GitalyClient.encode(commit_details.name),
diff --git a/lib/gitlab/github_import.rb b/lib/gitlab/github_import.rb
new file mode 100644
index 00000000000..d2ae4c1255e
--- /dev/null
+++ b/lib/gitlab/github_import.rb
@@ -0,0 +1,34 @@
+module Gitlab
+  module GithubImport
+    def self.new_client_for(project, token: nil, parallel: true)
+      token_to_use = token || project.import_data&.credentials&.fetch(:user)
+
+      Client.new(token_to_use, parallel: parallel)
+    end
+
+    # Inserts a raw row and returns the ID of the inserted row.
+    #
+    # attributes - The attributes/columns to set.
+    # relation - An ActiveRecord::Relation to use for finding the ID of the row
+    #            when using MySQL.
+    def self.insert_and_return_id(attributes, relation)
+      # We use bulk_insert here so we can bypass any queries executed by
+      # callbacks or validation rules, as doing this wouldn't scale when
+      # importing very large projects.
+      result = Gitlab::Database
+        .bulk_insert(relation.table_name, [attributes], return_ids: true)
+
+      # MySQL doesn't support returning the IDs of a bulk insert in a way that
+      # is not a pain, so in this case we'll issue an extra query instead.
+      result.first ||
+        relation.where(iid: attributes[:iid]).limit(1).pluck(:id).first
+    end
+
+    # Returns the ID of the ghost user.
+    def self.ghost_user_id
+      key = 'github-import/ghost-user-id'
+
+      Caching.read_integer(key) || Caching.write(key, User.select(:id).ghost.id)
+    end
+  end
+end
diff --git a/lib/gitlab/github_import/bulk_importing.rb b/lib/gitlab/github_import/bulk_importing.rb
new file mode 100644
index 00000000000..147597289cf
--- /dev/null
+++ b/lib/gitlab/github_import/bulk_importing.rb
@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    module BulkImporting
+      # Builds and returns an Array of objects to bulk insert into the
+      # database.
+      #
+      # enum - An Enumerable that returns the objects to turn into database
+      #        rows.
+      def build_database_rows(enum)
+        enum.each_with_object([]) do |(object, _), rows|
+          rows << build(object) unless already_imported?(object)
+        end
+      end
+
+      # Bulk inserts the given rows into the database.
+      def bulk_insert(model, rows, batch_size: 100)
+        rows.each_slice(batch_size) do |slice|
+          Gitlab::Database.bulk_insert(model.table_name, slice)
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/github_import/caching.rb b/lib/gitlab/github_import/caching.rb
new file mode 100644
index 00000000000..b08f133794f
--- /dev/null
+++ b/lib/gitlab/github_import/caching.rb
@@ -0,0 +1,151 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    module Caching
+      # The default timeout of the cache keys.
+      TIMEOUT = 24.hours.to_i
+
+      WRITE_IF_GREATER_SCRIPT = <<-EOF.strip_heredoc.freeze
+      local key, value, ttl = KEYS[1], tonumber(ARGV[1]), ARGV[2]
+      local existing = tonumber(redis.call("get", key))
+
+      if existing == nil or value > existing then
+        redis.call("set", key, value)
+        redis.call("expire", key, ttl)
+        return true
+      else
+        return false
+      end
+      EOF
+
+      # Reads a cache key.
+      #
+      # If the key exists and has a non-empty value its TTL is refreshed
+      # automatically.
+      #
+      # raw_key - The cache key to read.
+      # timeout - The new timeout of the key if the key is to be refreshed.
+      def self.read(raw_key, timeout: TIMEOUT)
+        key = cache_key_for(raw_key)
+        value = Redis::Cache.with { |redis| redis.get(key) }
+
+        if value.present?
+          # We refresh the expiration time so frequently used keys stick
+          # around, removing the need for querying the database as much as
+          # possible.
+          #
+          # A key may be empty when we looked up a GitHub user (for example) but
+          # did not find a matching GitLab user. In that case we _don't_ want to
+          # refresh the TTL so we automatically pick up the right data when said
+          # user were to register themselves on the GitLab instance.
+          Redis::Cache.with { |redis| redis.expire(key, timeout) }
+        end
+
+        value
+      end
+
+      # Reads an integer from the cache, or returns nil if no value was found.
+      #
+      # See Caching.read for more information.
+      def self.read_integer(raw_key, timeout: TIMEOUT)
+        value = read(raw_key, timeout: timeout)
+
+        value.to_i if value.present?
+      end
+
+      # Sets a cache key to the given value.
+      #
+      # key - The cache key to write.
+      # value - The value to set.
+      # timeout - The time after which the cache key should expire.
+      def self.write(raw_key, value, timeout: TIMEOUT)
+        key = cache_key_for(raw_key)
+
+        Redis::Cache.with do |redis|
+          redis.set(key, value, ex: timeout)
+        end
+
+        value
+      end
+
+      # Adds a value to a set.
+      #
+      # raw_key - The key of the set to add the value to.
+      # value - The value to add to the set.
+      # timeout - The new timeout of the key.
+      def self.set_add(raw_key, value, timeout: TIMEOUT)
+        key = cache_key_for(raw_key)
+
+        Redis::Cache.with do |redis|
+          redis.multi do |m|
+            m.sadd(key, value)
+            m.expire(key, timeout)
+          end
+        end
+      end
+
+      # Returns true if the given value is present in the set.
+      #
+      # raw_key - The key of the set to check.
+      # value - The value to check for.
+      def self.set_includes?(raw_key, value)
+        key = cache_key_for(raw_key)
+
+        Redis::Cache.with do |redis|
+          redis.sismember(key, value)
+        end
+      end
+
+      # Sets multiple keys to a given value.
+      #
+      # mapping - A Hash mapping the cache keys to their values.
+      # timeout - The time after which the cache key should expire.
+      def self.write_multiple(mapping, timeout: TIMEOUT)
+        Redis::Cache.with do |redis|
+          redis.multi do |multi|
+            mapping.each do |raw_key, value|
+              multi.set(cache_key_for(raw_key), value, ex: timeout)
+            end
+          end
+        end
+      end
+
+      # Sets the expiration time of a key.
+      #
+      # raw_key - The key for which to change the timeout.
+      # timeout - The new timeout.
+      def self.expire(raw_key, timeout)
+        key = cache_key_for(raw_key)
+
+        Redis::Cache.with do |redis|
+          redis.expire(key, timeout)
+        end
+      end
+
+      # Sets a key to the given integer but only if the existing value is
+      # smaller than the given value.
+      #
+      # This method uses a Lua script to ensure the read and write are atomic.
+      #
+      # raw_key - The key to set.
+      # value - The new value for the key.
+      # timeout - The key timeout in seconds.
+      #
+      # Returns true when the key was overwritten, false otherwise.
+      def self.write_if_greater(raw_key, value, timeout: TIMEOUT)
+        key = cache_key_for(raw_key)
+        val = Redis::Cache.with do |redis|
+          redis
+            .eval(WRITE_IF_GREATER_SCRIPT, keys: [key], argv: [value, timeout])
+        end
+
+        val ? true : false
+      end
+
+      def self.cache_key_for(raw_key)
+        "#{Redis::Cache::CACHE_NAMESPACE}:#{raw_key}"
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/github_import/client.rb b/lib/gitlab/github_import/client.rb
index 0550f9695bd..5da9befa08e 100644
--- a/lib/gitlab/github_import/client.rb
+++ b/lib/gitlab/github_import/client.rb
@@ -1,147 +1,216 @@
+# frozen_string_literal: true
+
 module Gitlab
   module GithubImport
+    # HTTP client for interacting with the GitHub API.
+    #
+    # This class is basically a fancy wrapped around Octokit while adding some
+    # functionality to deal with rate limiting and parallel imports. Usage is
+    # mostly the same as Octokit, for example:
+    #
+    #     client = GithubImport::Client.new('hunter2')
+    #
+    #     client.labels.each do |label|
+    #       puts label.name
+    #     end
     class Client
-      GITHUB_SAFE_REMAINING_REQUESTS = 100
-      GITHUB_SAFE_SLEEP_TIME = 500
+      attr_reader :octokit
+
+      # A single page of data and the corresponding page number.
+      Page = Struct.new(:objects, :number)
+
+      # The minimum number of requests we want to keep available.
+      #
+      # We don't use a value of 0 as multiple threads may be using the same
+      # token in parallel. This could result in all of them hitting the GitHub
+      # rate limit at once. The threshold is put in place to not hit the limit
+      # in most cases.
+      RATE_LIMIT_THRESHOLD = 50
+
+      # token - The GitHub API token to use.
+      #
+      # per_page - The number of objects that should be displayed per page.
+      #
+      # parallel - When set to true hitting the rate limit will result in a
+      #            dedicated error being raised. When set to `false` we will
+      #            instead just `sleep()` until the rate limit is reset. Setting
+      #            this value to `true` for parallel importing is crucial as
+      #            otherwise hitting the rate limit will result in a thread
+      #            being blocked in a `sleep()` call for up to an hour.
+      def initialize(token, per_page: 100, parallel: true)
+        @octokit = Octokit::Client.new(
+          access_token: token,
+          per_page: per_page,
+          api_endpoint: api_endpoint
+        )
 
-      attr_reader :access_token, :host, :api_version
+        @octokit.connection_options[:ssl] = { verify: verify_ssl }
 
-      def initialize(access_token, host: nil, api_version: 'v3')
-        @access_token = access_token
-        @host = host.to_s.sub(%r{/+\z}, '')
-        @api_version = api_version
-        @users = {}
+        @parallel = parallel
+      end
 
-        if access_token
-          ::Octokit.auto_paginate = false
-        end
+      def parallel?
+        @parallel
       end
 
-      def api
-        @api ||= ::Octokit::Client.new(
-          access_token: access_token,
-          api_endpoint: api_endpoint,
-          # If there is no config, we're connecting to github.com and we
-          # should verify ssl.
-          connection_options: {
-            ssl: { verify: config ? config['verify_ssl'] : true }
-          }
-        )
+      # Returns the details of a GitHub user.
+      #
+      # username - The username of the user.
+      def user(username)
+        with_rate_limit { octokit.user(username) }
       end
 
-      def client
-        unless config
-          raise Projects::ImportService::Error,
-            'OAuth configuration for GitHub missing.'
-        end
+      # Returns the details of a GitHub repository.
+      #
+      # name - The path (in the form `owner/repository`) of the repository.
+      def repository(name)
+        with_rate_limit { octokit.repo(name) }
+      end
 
-        @client ||= ::OAuth2::Client.new(
-          config.app_id,
-          config.app_secret,
-          github_options.merge(ssl: { verify: config['verify_ssl'] })
-        )
+      def labels(*args)
+        each_object(:labels, *args)
       end
 
-      def authorize_url(redirect_uri)
-        client.auth_code.authorize_url({
-          redirect_uri: redirect_uri,
-          scope: "repo, user, user:email"
-        })
+      def milestones(*args)
+        each_object(:milestones, *args)
       end
 
-      def get_token(code)
-        client.auth_code.get_token(code).token
+      def releases(*args)
+        each_object(:releases, *args)
       end
 
-      def method_missing(method, *args, &block)
-        if api.respond_to?(method)
-          request(method, *args, &block)
-        else
-          super(method, *args, &block)
+      # Fetches data from the GitHub API and yields a Page object for every page
+      # of data, without loading all of them into memory.
+      #
+      # method - The Octokit method to use for getting the data.
+      # args - Arguments to pass to the Octokit method.
+      #
+      # rubocop: disable GitlabSecurity/PublicSend
+      def each_page(method, *args, &block)
+        return to_enum(__method__, method, *args) unless block_given?
+
+        page =
+          if args.last.is_a?(Hash) && args.last[:page]
+            args.last[:page]
+          else
+            1
+          end
+
+        collection = with_rate_limit { octokit.public_send(method, *args) }
+        next_url = octokit.last_response.rels[:next]
+
+        yield Page.new(collection, page)
+
+        while next_url
+          response = with_rate_limit { next_url.get }
+          next_url = response.rels[:next]
+
+          yield Page.new(response.data, page += 1)
         end
       end
 
-      def respond_to?(method)
-        api.respond_to?(method) || super
+      # Iterates over all of the objects for the given method (e.g. `:labels`).
+      #
+      # method - The method to send to Octokit for querying data.
+      # args - Any arguments to pass to the Octokit method.
+      def each_object(method, *args, &block)
+        return to_enum(__method__, method, *args) unless block_given?
+
+        each_page(method, *args) do |page|
+          page.objects.each do |object|
+            yield object
+          end
+        end
       end
 
-      def user(login)
-        return nil unless login.present?
-        return @users[login] if @users.key?(login)
+      # Yields the supplied block, responding to any rate limit errors.
+      #
+      # The exact strategy used for handling rate limiting errors depends on
+      # whether we are running in parallel mode or not. For more information see
+      # `#rate_or_wait_for_rate_limit`.
+      def with_rate_limit
+        return yield unless rate_limiting_enabled?
 
-        @users[login] = api.user(login)
-      end
+        request_count_counter.increment
 
-      private
+        raise_or_wait_for_rate_limit unless requests_remaining?
 
-      def api_endpoint
-        if host.present? && api_version.present?
-          "#{host}/api/#{api_version}"
-        else
-          github_options[:site]
+        begin
+          yield
+        rescue Octokit::TooManyRequests
+          raise_or_wait_for_rate_limit
+
+          # This retry will only happen when running in sequential mode as we'll
+          # raise an error in parallel mode.
+          retry
         end
       end
 
-      def config
-        Gitlab.config.omniauth.providers.find { |provider| provider.name == "github" }
+      # Returns `true` if we're still allowed to perform API calls.
+      def requests_remaining?
+        remaining_requests > RATE_LIMIT_THRESHOLD
+      end
+
+      def remaining_requests
+        octokit.rate_limit.remaining
       end
 
-      def github_options
-        if config
-          config["args"]["client_options"].deep_symbolize_keys
+      def raise_or_wait_for_rate_limit
+        rate_limit_counter.increment
+
+        if parallel?
+          raise RateLimitError
         else
-          OmniAuth::Strategies::GitHub.default_options[:client_options].symbolize_keys
+          sleep(rate_limit_resets_in)
         end
       end
 
-      def rate_limit
-        api.rate_limit!
-      # GitHub Rate Limit API returns 404 when the rate limit is
-      # disabled. In this case we just want to return gracefully
-      # instead of spitting out an error.
-      rescue Octokit::NotFound
-        nil
+      def rate_limit_resets_in
+        # We add a few seconds to the rate limit so we don't _immediately_
+        # resume when the rate limit resets as this may result in us performing
+        # a request before GitHub has a chance to reset the limit.
+        octokit.rate_limit.resets_in + 5
       end
 
-      def has_rate_limit?
-        return @has_rate_limit if defined?(@has_rate_limit)
-
-        @has_rate_limit = rate_limit.present?
+      def rate_limiting_enabled?
+        @rate_limiting_enabled ||= api_endpoint.include?('.github.com')
       end
 
-      def rate_limit_exceed?
-        has_rate_limit? && rate_limit.remaining <= GITHUB_SAFE_REMAINING_REQUESTS
+      def api_endpoint
+        custom_api_endpoint || default_api_endpoint
       end
 
-      def rate_limit_sleep_time
-        rate_limit.resets_in + GITHUB_SAFE_SLEEP_TIME
+      def custom_api_endpoint
+        github_omniauth_provider.dig('args', 'client_options', 'site')
       end
 
-      def request(method, *args, &block)
-        sleep rate_limit_sleep_time if rate_limit_exceed?
+      def default_api_endpoint
+        OmniAuth::Strategies::GitHub.default_options[:client_options][:site]
+      end
 
-        data = api.__send__(method, *args) # rubocop:disable GitlabSecurity/PublicSend
-        return data unless data.is_a?(Array)
+      def verify_ssl
+        github_omniauth_provider.fetch('verify_ssl', true)
+      end
 
-        last_response = api.last_response
+      def github_omniauth_provider
+        @github_omniauth_provider ||=
+          Gitlab.config.omniauth.providers
+                .find { |provider| provider.name == 'github' }
+                .to_h
+      end
 
-        if block_given?
-          yield data
-          # api.last_response could change while we're yielding (e.g. fetching labels for each PR)
-          # so we cache our own last response
-          each_response_page(last_response, &block)
-        else
-          each_response_page(last_response) { |page| data.concat(page) }
-          data
-        end
+      def rate_limit_counter
+        @rate_limit_counter ||= Gitlab::Metrics.counter(
+          :github_importer_rate_limit_hits,
+          'The number of times we hit the GitHub rate limit when importing projects'
+        )
       end
 
-      def each_response_page(last_response)
-        while last_response.rels[:next]
-          sleep rate_limit_sleep_time if rate_limit_exceed?
-          last_response = last_response.rels[:next].get
-          yield last_response.data if last_response.data.is_a?(Array)
-        end
+      def request_count_counter
+        @request_counter ||= Gitlab::Metrics.counter(
+          :github_importer_request_count,
+          'The number of GitHub API calls performed when importing projects'
+        )
       end
     end
   end
diff --git a/lib/gitlab/github_import/importer/diff_note_importer.rb b/lib/gitlab/github_import/importer/diff_note_importer.rb
new file mode 100644
index 00000000000..8274f37d358
--- /dev/null
+++ b/lib/gitlab/github_import/importer/diff_note_importer.rb
@@ -0,0 +1,63 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    module Importer
+      class DiffNoteImporter
+        attr_reader :note, :project, :client, :user_finder
+
+        # note - An instance of `Gitlab::GithubImport::Representation::DiffNote`.
+        # project - An instance of `Project`.
+        # client - An instance of `Gitlab::GithubImport::Client`.
+        def initialize(note, project, client)
+          @note = note
+          @project = project
+          @client = client
+          @user_finder = UserFinder.new(project, client)
+        end
+
+        def execute
+          return unless (mr_id = find_merge_request_id)
+
+          author_id, author_found = user_finder.author_id_for(note)
+
+          note_body =
+            MarkdownText.format(note.note, note.author, author_found)
+
+          attributes = {
+            noteable_type: 'MergeRequest',
+            noteable_id: mr_id,
+            project_id: project.id,
+            author_id: author_id,
+            note: note_body,
+            system: false,
+            commit_id: note.commit_id,
+            line_code: note.line_code,
+            type: 'LegacyDiffNote',
+            created_at: note.created_at,
+            updated_at: note.updated_at,
+            st_diff: note.diff_hash.to_yaml
+          }
+
+          # It's possible that during an import we'll insert tens of thousands
+          # of diff notes. If we were to use the Note/LegacyDiffNote model here
+          # we'd also have to run additional queries for both validations and
+          # callbacks, putting a lot of pressure on the database.
+          #
+          # To work around this we're using bulk_insert with a single row. This
+          # allows us to efficiently insert data (even if it's just 1 row)
+          # without having to use all sorts of hacks to disable callbacks.
+          Gitlab::Database.bulk_insert(LegacyDiffNote.table_name, [attributes])
+        rescue ActiveRecord::InvalidForeignKey
+          # It's possible the project and the issue have been deleted since
+          # scheduling this job. In this case we'll just skip creating the note.
+        end
+
+        # Returns the ID of the merge request this note belongs to.
+        def find_merge_request_id
+          GithubImport::IssuableFinder.new(project, note).database_id
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/github_import/importer/diff_notes_importer.rb b/lib/gitlab/github_import/importer/diff_notes_importer.rb
new file mode 100644
index 00000000000..966f12c5c2f
--- /dev/null
+++ b/lib/gitlab/github_import/importer/diff_notes_importer.rb
@@ -0,0 +1,31 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    module Importer
+      class DiffNotesImporter
+        include ParallelScheduling
+
+        def representation_class
+          Representation::DiffNote
+        end
+
+        def importer_class
+          DiffNoteImporter
+        end
+
+        def sidekiq_worker_class
+          ImportDiffNoteWorker
+        end
+
+        def collection_method
+          :pull_requests_comments
+        end
+
+        def id_for_already_imported_cache(note)
+          note.id
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/github_import/importer/issue_and_label_links_importer.rb b/lib/gitlab/github_import/importer/issue_and_label_links_importer.rb
new file mode 100644
index 00000000000..bad064b76c8
--- /dev/null
+++ b/lib/gitlab/github_import/importer/issue_and_label_links_importer.rb
@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    module Importer
+      class IssueAndLabelLinksImporter
+        attr_reader :issue, :project, :client
+
+        # issue - An instance of `Gitlab::GithubImport::Representation::Issue`.
+        # project - An instance of `Project`
+        # client - An instance of `Gitlab::GithubImport::Client`
+        def initialize(issue, project, client)
+          @issue = issue
+          @project = project
+          @client = client
+        end
+
+        def execute
+          IssueImporter.import_if_issue(issue, project, client)
+          LabelLinksImporter.new(issue, project, client).execute
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/github_import/importer/issue_importer.rb b/lib/gitlab/github_import/importer/issue_importer.rb
new file mode 100644
index 00000000000..31fefebf787
--- /dev/null
+++ b/lib/gitlab/github_import/importer/issue_importer.rb
@@ -0,0 +1,81 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    module Importer
+      class IssueImporter
+        attr_reader :project, :issue, :client, :user_finder, :milestone_finder,
+                    :issuable_finder
+
+        # Imports an issue if it's a regular issue and not a pull request.
+        def self.import_if_issue(issue, project, client)
+          new(issue, project, client).execute unless issue.pull_request?
+        end
+
+        # issue - An instance of `Gitlab::GithubImport::Representation::Issue`.
+        # project - An instance of `Project`
+        # client - An instance of `Gitlab::GithubImport::Client`
+        def initialize(issue, project, client)
+          @issue = issue
+          @project = project
+          @client = client
+          @user_finder = UserFinder.new(project, client)
+          @milestone_finder = MilestoneFinder.new(project)
+          @issuable_finder = GithubImport::IssuableFinder.new(project, issue)
+        end
+
+        def execute
+          Issue.transaction do
+            if (issue_id = create_issue)
+              create_assignees(issue_id)
+              issuable_finder.cache_database_id(issue_id)
+            end
+          end
+        end
+
+        # Creates a new GitLab issue for the current GitHub issue.
+        #
+        # Returns the ID of the created issue as an Integer. If the issue
+        # couldn't be created this method will return `nil` instead.
+        def create_issue
+          author_id, author_found = user_finder.author_id_for(issue)
+
+          description =
+            MarkdownText.format(issue.description, issue.author, author_found)
+
+          attributes = {
+            iid: issue.iid,
+            title: issue.truncated_title,
+            author_id: author_id,
+            project_id: project.id,
+            description: description,
+            milestone_id: milestone_finder.id_for(issue),
+            state: issue.state,
+            created_at: issue.created_at,
+            updated_at: issue.updated_at
+          }
+
+          GithubImport.insert_and_return_id(attributes, project.issues)
+        rescue ActiveRecord::InvalidForeignKey
+          # It's possible the project has been deleted since scheduling this
+          # job. In this case we'll just skip creating the issue.
+        end
+
+        # Stores all issue assignees in the database.
+        #
+        # issue_id - The ID of the created issue.
+        def create_assignees(issue_id)
+          assignees = []
+
+          issue.assignees.each do |assignee|
+            if (user_id = user_finder.user_id_for(assignee))
+              assignees << { issue_id: issue_id, user_id: user_id }
+            end
+          end
+
+          Gitlab::Database.bulk_insert(IssueAssignee.table_name, assignees)
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/github_import/importer/issues_importer.rb b/lib/gitlab/github_import/importer/issues_importer.rb
new file mode 100644
index 00000000000..ac6d0666b3a
--- /dev/null
+++ b/lib/gitlab/github_import/importer/issues_importer.rb
@@ -0,0 +1,35 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    module Importer
+      class IssuesImporter
+        include ParallelScheduling
+
+        def importer_class
+          IssueAndLabelLinksImporter
+        end
+
+        def representation_class
+          Representation::Issue
+        end
+
+        def sidekiq_worker_class
+          ImportIssueWorker
+        end
+
+        def collection_method
+          :issues
+        end
+
+        def id_for_already_imported_cache(issue)
+          issue.number
+        end
+
+        def collection_options
+          { state: 'all', sort: 'created', direction: 'asc' }
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/github_import/importer/label_links_importer.rb b/lib/gitlab/github_import/importer/label_links_importer.rb
new file mode 100644
index 00000000000..2001b7e3482
--- /dev/null
+++ b/lib/gitlab/github_import/importer/label_links_importer.rb
@@ -0,0 +1,52 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    module Importer
+      class LabelLinksImporter
+        attr_reader :issue, :project, :client, :label_finder
+
+        # issue - An instance of `Gitlab::GithubImport::Representation::Issue`
+        # project - An instance of `Project`
+        # client - An instance of `Gitlab::GithubImport::Client`
+        def initialize(issue, project, client)
+          @issue = issue
+          @project = project
+          @client = client
+          @label_finder = LabelFinder.new(project)
+        end
+
+        def execute
+          create_labels
+        end
+
+        def create_labels
+          time = Time.zone.now
+          rows = []
+          target_id = find_target_id
+
+          issue.label_names.each do |label_name|
+            # Although unlikely it's technically possible for an issue to be
+            # given a label that was created and assigned after we imported all
+            # the project's labels.
+            next unless (label_id = label_finder.id_for(label_name))
+
+            rows << {
+              label_id: label_id,
+              target_id: target_id,
+              target_type: issue.issuable_type,
+              created_at: time,
+              updated_at: time
+            }
+          end
+
+          Gitlab::Database.bulk_insert(LabelLink.table_name, rows)
+        end
+
+        def find_target_id
+          GithubImport::IssuableFinder.new(project, issue).database_id
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/github_import/importer/labels_importer.rb b/lib/gitlab/github_import/importer/labels_importer.rb
new file mode 100644
index 00000000000..a73033d35ba
--- /dev/null
+++ b/lib/gitlab/github_import/importer/labels_importer.rb
@@ -0,0 +1,55 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    module Importer
+      class LabelsImporter
+        include BulkImporting
+
+        attr_reader :project, :client, :existing_labels
+
+        # project - An instance of `Project`.
+        # client - An instance of `Gitlab::GithubImport::Client`.
+        def initialize(project, client)
+          @project = project
+          @client = client
+          @existing_labels = project.labels.pluck(:title).to_set
+        end
+
+        def execute
+          bulk_insert(Label, build_labels)
+          build_labels_cache
+        end
+
+        def build_labels
+          build_database_rows(each_label)
+        end
+
+        def already_imported?(label)
+          existing_labels.include?(label.name)
+        end
+
+        def build_labels_cache
+          LabelFinder.new(project).build_cache
+        end
+
+        def build(label)
+          time = Time.zone.now
+
+          {
+            title: label.name,
+            color: '#' + label.color,
+            project_id: project.id,
+            type: 'ProjectLabel',
+            created_at: time,
+            updated_at: time
+          }
+        end
+
+        def each_label
+          client.labels(project.import_source)
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/github_import/importer/milestones_importer.rb b/lib/gitlab/github_import/importer/milestones_importer.rb
new file mode 100644
index 00000000000..c53480e828a
--- /dev/null
+++ b/lib/gitlab/github_import/importer/milestones_importer.rb
@@ -0,0 +1,58 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    module Importer
+      class MilestonesImporter
+        include BulkImporting
+
+        attr_reader :project, :client, :existing_milestones
+
+        # project - An instance of `Project`
+        # client - An instance of `Gitlab::GithubImport::Client`
+        def initialize(project, client)
+          @project = project
+          @client = client
+          @existing_milestones = project.milestones.pluck(:iid).to_set
+        end
+
+        def execute
+          bulk_insert(Milestone, build_milestones)
+          build_milestones_cache
+        end
+
+        def build_milestones
+          build_database_rows(each_milestone)
+        end
+
+        def already_imported?(milestone)
+          existing_milestones.include?(milestone.number)
+        end
+
+        def build_milestones_cache
+          MilestoneFinder.new(project).build_cache
+        end
+
+        def build(milestone)
+          {
+            iid: milestone.number,
+            title: milestone.title,
+            description: milestone.description,
+            project_id: project.id,
+            state: state_for(milestone),
+            created_at: milestone.created_at,
+            updated_at: milestone.updated_at
+          }
+        end
+
+        def state_for(milestone)
+          milestone.state == 'open' ? :active : :closed
+        end
+
+        def each_milestone
+          client.milestones(project.import_source, state: 'all')
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/github_import/importer/note_importer.rb b/lib/gitlab/github_import/importer/note_importer.rb
new file mode 100644
index 00000000000..c890f2df360
--- /dev/null
+++ b/lib/gitlab/github_import/importer/note_importer.rb
@@ -0,0 +1,54 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    module Importer
+      class NoteImporter
+        attr_reader :note, :project, :client, :user_finder
+
+        # note - An instance of `Gitlab::GithubImport::Representation::Note`.
+        # project - An instance of `Project`.
+        # client - An instance of `Gitlab::GithubImport::Client`.
+        def initialize(note, project, client)
+          @note = note
+          @project = project
+          @client = client
+          @user_finder = UserFinder.new(project, client)
+        end
+
+        def execute
+          return unless (noteable_id = find_noteable_id)
+
+          author_id, author_found = user_finder.author_id_for(note)
+
+          note_body =
+            MarkdownText.format(note.note, note.author, author_found)
+
+          attributes = {
+            noteable_type: note.noteable_type,
+            noteable_id: noteable_id,
+            project_id: project.id,
+            author_id: author_id,
+            note: note_body,
+            system: false,
+            created_at: note.created_at,
+            updated_at: note.updated_at
+          }
+
+          # We're using bulk_insert here so we can bypass any validations and
+          # callbacks. Running these would result in a lot of unnecessary SQL
+          # queries being executed when importing large projects.
+          Gitlab::Database.bulk_insert(Note.table_name, [attributes])
+        rescue ActiveRecord::InvalidForeignKey
+          # It's possible the project and the issue have been deleted since
+          # scheduling this job. In this case we'll just skip creating the note.
+        end
+
+        # Returns the ID of the issue or merge request to create the note for.
+        def find_noteable_id
+          GithubImport::IssuableFinder.new(project, note).database_id
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/github_import/importer/notes_importer.rb b/lib/gitlab/github_import/importer/notes_importer.rb
new file mode 100644
index 00000000000..5aec760ea5f
--- /dev/null
+++ b/lib/gitlab/github_import/importer/notes_importer.rb
@@ -0,0 +1,31 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    module Importer
+      class NotesImporter
+        include ParallelScheduling
+
+        def importer_class
+          NoteImporter
+        end
+
+        def representation_class
+          Representation::Note
+        end
+
+        def sidekiq_worker_class
+          ImportNoteWorker
+        end
+
+        def collection_method
+          :issues_comments
+        end
+
+        def id_for_already_imported_cache(note)
+          note.id
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/github_import/importer/pull_request_importer.rb b/lib/gitlab/github_import/importer/pull_request_importer.rb
new file mode 100644
index 00000000000..49d859f9624
--- /dev/null
+++ b/lib/gitlab/github_import/importer/pull_request_importer.rb
@@ -0,0 +1,91 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    module Importer
+      class PullRequestImporter
+        attr_reader :pull_request, :project, :client, :user_finder,
+                    :milestone_finder, :issuable_finder
+
+        # pull_request - An instance of
+        #                `Gitlab::GithubImport::Representation::PullRequest`.
+        # project - An instance of `Project`
+        # client - An instance of `Gitlab::GithubImport::Client`
+        def initialize(pull_request, project, client)
+          @pull_request = pull_request
+          @project = project
+          @client = client
+          @user_finder = UserFinder.new(project, client)
+          @milestone_finder = MilestoneFinder.new(project)
+          @issuable_finder =
+            GithubImport::IssuableFinder.new(project, pull_request)
+        end
+
+        def execute
+          if (mr_id = create_merge_request)
+            issuable_finder.cache_database_id(mr_id)
+          end
+        end
+
+        # Creates the merge request and returns its ID.
+        #
+        # This method will return `nil` if the merge request could not be
+        # created.
+        def create_merge_request
+          author_id, author_found = user_finder.author_id_for(pull_request)
+
+          description = MarkdownText
+            .format(pull_request.description, pull_request.author, author_found)
+
+          # This work must be wrapped in a transaction as otherwise we can leave
+          # behind incomplete data in the event of an error. This can then lead
+          # to duplicate key errors when jobs are retried.
+          MergeRequest.transaction do
+            attributes = {
+              iid: pull_request.iid,
+              title: pull_request.truncated_title,
+              description: description,
+              source_project_id: project.id,
+              target_project_id: project.id,
+              source_branch: pull_request.formatted_source_branch,
+              target_branch: pull_request.target_branch,
+              state: pull_request.state,
+              milestone_id: milestone_finder.id_for(pull_request),
+              author_id: author_id,
+              assignee_id: user_finder.assignee_id_for(pull_request),
+              created_at: pull_request.created_at,
+              updated_at: pull_request.updated_at
+            }
+
+            # When creating merge requests there are a lot of hooks that may
+            # run, for many different reasons. Many of these hooks (e.g. the
+            # ones used for rendering Markdown) are completely unnecessary and
+            # may even lead to transaction timeouts.
+            #
+            # To ensure importing pull requests has a minimal impact and can
+            # complete in a reasonable time we bypass all the hooks by inserting
+            # the row and then retrieving it. We then only perform the
+            # additional work that is strictly necessary.
+            merge_request_id = GithubImport
+              .insert_and_return_id(attributes, project.merge_requests)
+
+            merge_request = project.merge_requests.find(merge_request_id)
+
+            # These fields are set so we can create the correct merge request
+            # diffs.
+            merge_request.source_branch_sha = pull_request.source_branch_sha
+            merge_request.target_branch_sha = pull_request.target_branch_sha
+
+            merge_request.keep_around_commit
+            merge_request.merge_request_diffs.create
+
+            merge_request.id
+          end
+        rescue ActiveRecord::InvalidForeignKey
+          # It's possible the project has been deleted since scheduling this
+          # job. In this case we'll just skip creating the merge request.
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/github_import/importer/pull_requests_importer.rb b/lib/gitlab/github_import/importer/pull_requests_importer.rb
new file mode 100644
index 00000000000..5437e32e9f1
--- /dev/null
+++ b/lib/gitlab/github_import/importer/pull_requests_importer.rb
@@ -0,0 +1,83 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    module Importer
+      class PullRequestsImporter
+        include ParallelScheduling
+
+        def importer_class
+          PullRequestImporter
+        end
+
+        def representation_class
+          Representation::PullRequest
+        end
+
+        def sidekiq_worker_class
+          ImportPullRequestWorker
+        end
+
+        def id_for_already_imported_cache(pr)
+          pr.number
+        end
+
+        def each_object_to_import
+          super do |pr|
+            update_repository if update_repository?(pr)
+            yield pr
+          end
+        end
+
+        def update_repository
+          # We set this column _before_ fetching the repository, and this is
+          # deliberate. If we were to update this column after the fetch we may
+          # miss out on changes pushed during the fetch or between the fetch and
+          # updating the timestamp.
+          project.update_column(:last_repository_updated_at, Time.zone.now)
+
+          project.repository.fetch_remote('github', forced: false)
+
+          pname = project.path_with_namespace
+
+          Rails.logger
+            .info("GitHub importer finished updating repository for #{pname}")
+
+          repository_updates_counter.increment(project: pname)
+        end
+
+        def update_repository?(pr)
+          last_update = project.last_repository_updated_at || project.created_at
+
+          return false if pr.updated_at < last_update
+
+          # PRs may be updated without there actually being new commits, thus we
+          # check to make sure we only re-fetch if truly necessary.
+          !(commit_exists?(pr.head.sha) && commit_exists?(pr.base.sha))
+        end
+
+        def commit_exists?(sha)
+          project.repository.lookup(sha)
+          true
+        rescue Rugged::Error
+          false
+        end
+
+        def collection_method
+          :pull_requests
+        end
+
+        def collection_options
+          { state: 'all', sort: 'created', direction: 'asc' }
+        end
+
+        def repository_updates_counter
+          @repository_updates_counter ||= Gitlab::Metrics.counter(
+            :github_importer_repository_updates,
+            'The number of times repositories have to be updated again'
+          )
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/github_import/importer/releases_importer.rb b/lib/gitlab/github_import/importer/releases_importer.rb
new file mode 100644
index 00000000000..100f459fdcc
--- /dev/null
+++ b/lib/gitlab/github_import/importer/releases_importer.rb
@@ -0,0 +1,55 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    module Importer
+      class ReleasesImporter
+        include BulkImporting
+
+        attr_reader :project, :client, :existing_tags
+
+        # project - An instance of `Project`
+        # client - An instance of `Gitlab::GithubImport::Client`
+        def initialize(project, client)
+          @project = project
+          @client = client
+          @existing_tags = project.releases.pluck(:tag).to_set
+        end
+
+        def execute
+          bulk_insert(Release, build_releases)
+        end
+
+        def build_releases
+          build_database_rows(each_release)
+        end
+
+        def already_imported?(release)
+          existing_tags.include?(release.tag_name)
+        end
+
+        def build(release)
+          {
+            tag: release.tag_name,
+            description: description_for(release),
+            created_at: release.created_at,
+            updated_at: release.updated_at,
+            project_id: project.id
+          }
+        end
+
+        def each_release
+          client.releases(project.import_source)
+        end
+
+        def description_for(release)
+          if release.body.present?
+            release.body
+          else
+            "Release for tag #{release.tag_name}"
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/github_import/importer/repository_importer.rb b/lib/gitlab/github_import/importer/repository_importer.rb
new file mode 100644
index 00000000000..0b67fc8db73
--- /dev/null
+++ b/lib/gitlab/github_import/importer/repository_importer.rb
@@ -0,0 +1,96 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    module Importer
+      class RepositoryImporter
+        include Gitlab::ShellAdapter
+
+        attr_reader :project, :client
+
+        def initialize(project, client)
+          @project = project
+          @client = client
+        end
+
+        # Returns true if we should import the wiki for the project.
+        def import_wiki?
+          client.repository(project.import_source)&.has_wiki &&
+            !project.wiki_repository_exists?
+        end
+
+        # Imports the repository data.
+        #
+        # This method will return true if the data was imported successfully or
+        # the repository had already been imported before.
+        def execute
+          imported =
+            # It's possible a repository has already been imported when running
+            # this code, e.g. because we had to retry this job after
+            # `import_wiki?` raised a rate limit error. In this case we'll skip
+            # re-importing the main repository.
+            if project.repository.empty_repo?
+              import_repository
+            else
+              true
+            end
+
+          update_clone_time if imported
+
+          imported = import_wiki_repository if import_wiki? && imported
+
+          imported
+        end
+
+        def import_repository
+          project.ensure_repository
+
+          configure_repository_remote
+
+          project.repository.fetch_remote('github', forced: true)
+
+          true
+        rescue Gitlab::Git::Repository::NoRepository, Gitlab::Shell::Error => e
+          fail_import("Failed to import the repository: #{e.message}")
+        end
+
+        def configure_repository_remote
+          return if project.repository.remote_exists?('github')
+
+          project.repository.add_remote('github', project.import_url)
+          project.repository.set_import_remote_as_mirror('github')
+
+          project.repository.add_remote_fetch_config(
+            'github',
+            '+refs/pull/*/head:refs/merge-requests/*/head'
+          )
+        end
+
+        def import_wiki_repository
+          wiki_path = "#{project.disk_path}.wiki"
+          wiki_url = project.import_url.sub(/\.git\z/, '.wiki.git')
+          storage_path = project.repository_storage_path
+
+          gitlab_shell.import_repository(storage_path, wiki_path, wiki_url)
+
+          true
+        rescue Gitlab::Shell::Error => e
+          if e.message !~ /repository not exported/
+            fail_import("Failed to import the wiki: #{e.message}")
+          else
+            true
+          end
+        end
+
+        def update_clone_time
+          project.update_column(:last_repository_updated_at, Time.zone.now)
+        end
+
+        def fail_import(message)
+          project.mark_import_as_failed(message)
+          false
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/github_import/issuable_finder.rb b/lib/gitlab/github_import/issuable_finder.rb
new file mode 100644
index 00000000000..211915f1d87
--- /dev/null
+++ b/lib/gitlab/github_import/issuable_finder.rb
@@ -0,0 +1,81 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    # IssuableFinder can be used for caching and retrieving database IDs for
+    # issuable objects such as issues and pull requests. By caching these IDs we
+    # remove the need for running a lot of database queries when importing
+    # GitHub projects.
+    class IssuableFinder
+      attr_reader :project, :object
+
+      # The base cache key to use for storing/retrieving issuable IDs.
+      CACHE_KEY = 'github-import/issuable-finder/%{project}/%{type}/%{iid}'.freeze
+
+      # project - An instance of `Project`.
+      # object - The object to look up or set a database ID for.
+      def initialize(project, object)
+        @project = project
+        @object = object
+      end
+
+      # Returns the database ID for the object.
+      #
+      # This method will return `nil` if no ID could be found.
+      def database_id
+        val = Caching.read(cache_key)
+
+        val.to_i if val.present?
+      end
+
+      # Associates the given database ID with the current object.
+      #
+      # database_id - The ID of the corresponding database row.
+      def cache_database_id(database_id)
+        Caching.write(cache_key, database_id)
+      end
+
+      private
+
+      def cache_key
+        CACHE_KEY % {
+          project: project.id,
+          type: cache_key_type,
+          iid: cache_key_iid
+        }
+      end
+
+      # Returns the identifier to use for cache keys.
+      #
+      # For issues and pull requests this will be "Issue" or "MergeRequest"
+      # respectively. For diff notes this will return "MergeRequest", for
+      # regular notes it will either return "Issue" or "MergeRequest" depending
+      # on what type of object the note belongs to.
+      def cache_key_type
+        if object.respond_to?(:issuable_type)
+          object.issuable_type
+        elsif object.respond_to?(:noteable_type)
+          object.noteable_type
+        else
+          raise(
+            TypeError,
+            "Instances of #{object.class} are not supported"
+          )
+        end
+      end
+
+      def cache_key_iid
+        if object.respond_to?(:noteable_id)
+          object.noteable_id
+        elsif object.respond_to?(:iid)
+          object.iid
+        else
+          raise(
+            TypeError,
+            "Instances of #{object.class} are not supported"
+          )
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/github_import/label_finder.rb b/lib/gitlab/github_import/label_finder.rb
new file mode 100644
index 00000000000..9be071141db
--- /dev/null
+++ b/lib/gitlab/github_import/label_finder.rb
@@ -0,0 +1,37 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    class LabelFinder
+      attr_reader :project
+
+      # The base cache key to use for storing/retrieving label IDs.
+      CACHE_KEY = 'github-import/label-finder/%{project}/%{name}'.freeze
+
+      # project - An instance of `Project`.
+      def initialize(project)
+        @project = project
+      end
+
+      # Returns the label ID for the given name.
+      def id_for(name)
+        Caching.read_integer(cache_key_for(name))
+      end
+
+      def build_cache
+        mapping = @project
+          .labels
+          .pluck(:id, :name)
+          .each_with_object({}) do |(id, name), hash|
+            hash[cache_key_for(name)] = id
+          end
+
+        Caching.write_multiple(mapping)
+      end
+
+      def cache_key_for(name)
+        CACHE_KEY % { project: project.id, name: name }
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/github_import/markdown_text.rb b/lib/gitlab/github_import/markdown_text.rb
new file mode 100644
index 00000000000..b25c4f7becf
--- /dev/null
+++ b/lib/gitlab/github_import/markdown_text.rb
@@ -0,0 +1,30 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    class MarkdownText
+      attr_reader :text, :author, :exists
+
+      def self.format(*args)
+        new(*args).to_s
+      end
+
+      # text - The Markdown text as a String.
+      # author - An instance of `Gitlab::GithubImport::Representation::User`
+      # exists - Boolean that indicates the user exists in the GitLab database.
+      def initialize(text, author, exists = false)
+        @text = text
+        @author = author
+        @exists = exists
+      end
+
+      def to_s
+        if exists
+          text
+        else
+          "*Created by: #{author.login}*\n\n#{text}"
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/github_import/milestone_finder.rb b/lib/gitlab/github_import/milestone_finder.rb
new file mode 100644
index 00000000000..208d15dc144
--- /dev/null
+++ b/lib/gitlab/github_import/milestone_finder.rb
@@ -0,0 +1,40 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    class MilestoneFinder
+      attr_reader :project
+
+      # The base cache key to use for storing/retrieving milestone IDs.
+      CACHE_KEY = 'github-import/milestone-finder/%{project}/%{iid}'.freeze
+
+      # project - An instance of `Project`
+      def initialize(project)
+        @project = project
+      end
+
+      # issuable - An instance of `Gitlab::GithubImport::Representation::Issue`
+      #            or `Gitlab::GithubImport::Representation::PullRequest`.
+      def id_for(issuable)
+        return unless issuable.milestone_number
+
+        Caching.read_integer(cache_key_for(issuable.milestone_number))
+      end
+
+      def build_cache
+        mapping = @project
+          .milestones
+          .pluck(:id, :iid)
+          .each_with_object({}) do |(id, iid), hash|
+            hash[cache_key_for(iid)] = id
+          end
+
+        Caching.write_multiple(mapping)
+      end
+
+      def cache_key_for(iid)
+        CACHE_KEY % { project: project.id, iid: iid }
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/github_import/page_counter.rb b/lib/gitlab/github_import/page_counter.rb
new file mode 100644
index 00000000000..c3db2d0b469
--- /dev/null
+++ b/lib/gitlab/github_import/page_counter.rb
@@ -0,0 +1,31 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    # PageCounter can be used to keep track of the last imported page of a
+    # collection, allowing workers to resume where they left off in the event of
+    # an error.
+    class PageCounter
+      attr_reader :cache_key
+
+      # The base cache key to use for storing the last page number.
+      CACHE_KEY = 'github-importer/page-counter/%{project}/%{collection}'.freeze
+
+      def initialize(project, collection)
+        @cache_key = CACHE_KEY % { project: project.id, collection: collection }
+      end
+
+      # Sets the page number to the given value.
+      #
+      # Returns true if the page number was overwritten, false otherwise.
+      def set(page)
+        Caching.write_if_greater(cache_key, page)
+      end
+
+      # Returns the current value from the cache.
+      def current
+        Caching.read_integer(cache_key) || 1
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/github_import/parallel_importer.rb b/lib/gitlab/github_import/parallel_importer.rb
new file mode 100644
index 00000000000..6da11e6ef08
--- /dev/null
+++ b/lib/gitlab/github_import/parallel_importer.rb
@@ -0,0 +1,48 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    # The ParallelImporter schedules the importing of a GitHub project using
+    # Sidekiq.
+    class ParallelImporter
+      attr_reader :project
+
+      def self.async?
+        true
+      end
+
+      def self.imports_repository?
+        true
+      end
+
+      def initialize(project)
+        @project = project
+      end
+
+      def execute
+        jid = generate_jid
+
+        # The original import JID is the JID of the RepositoryImportWorker job,
+        # which will be removed once that job completes. Reusing that JID could
+        # result in StuckImportJobsWorker marking the job as stuck before we get
+        # to running Stage::ImportRepositoryWorker.
+        #
+        # We work around this by setting the JID to a custom generated one, then
+        # refreshing it in the various stages whenever necessary.
+        Gitlab::SidekiqStatus
+          .set(jid, StuckImportJobsWorker::IMPORT_JOBS_EXPIRATION)
+
+        project.update_column(:import_jid, jid)
+
+        Stage::ImportRepositoryWorker
+          .perform_async(project.id)
+
+        true
+      end
+
+      def generate_jid
+        "github-importer/#{project.id}"
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/github_import/parallel_scheduling.rb b/lib/gitlab/github_import/parallel_scheduling.rb
new file mode 100644
index 00000000000..d4d1357f5a3
--- /dev/null
+++ b/lib/gitlab/github_import/parallel_scheduling.rb
@@ -0,0 +1,162 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    module ParallelScheduling
+      attr_reader :project, :client, :page_counter, :already_imported_cache_key
+
+      # The base cache key to use for tracking already imported objects.
+      ALREADY_IMPORTED_CACHE_KEY =
+        'github-importer/already-imported/%{project}/%{collection}'.freeze
+
+      # project - An instance of `Project`.
+      # client - An instance of `Gitlab::GithubImport::Client`.
+      # parallel - When set to true the objects will be imported in parallel.
+      def initialize(project, client, parallel: true)
+        @project = project
+        @client = client
+        @parallel = parallel
+        @page_counter = PageCounter.new(project, collection_method)
+        @already_imported_cache_key = ALREADY_IMPORTED_CACHE_KEY %
+          { project: project.id, collection: collection_method }
+      end
+
+      def parallel?
+        @parallel
+      end
+
+      def execute
+        retval =
+          if parallel?
+            parallel_import
+          else
+            sequential_import
+          end
+
+        # Once we have completed all work we can remove our "already exists"
+        # cache so we don't put too much pressure on Redis.
+        #
+        # We don't immediately remove it since it's technically possible for
+        # other instances of this job to still run, instead we set the
+        # expiration time to a lower value. This prevents the other jobs from
+        # still scheduling duplicates while. Since all work has already been
+        # completed those jobs will just cycle through any remaining pages while
+        # not scheduling anything.
+        Caching.expire(already_imported_cache_key, 15.minutes.to_i)
+
+        retval
+      end
+
+      # Imports all the objects in sequence in the current thread.
+      def sequential_import
+        each_object_to_import do |object|
+          repr = representation_class.from_api_response(object)
+
+          importer_class.new(repr, project, client).execute
+        end
+      end
+
+      # Imports all objects in parallel by scheduling a Sidekiq job for every
+      # individual object.
+      def parallel_import
+        waiter = JobWaiter.new
+
+        each_object_to_import do |object|
+          repr = representation_class.from_api_response(object)
+
+          sidekiq_worker_class
+            .perform_async(project.id, repr.to_hash, waiter.key)
+
+          waiter.jobs_remaining += 1
+        end
+
+        waiter
+      end
+
+      # The method that will be called for traversing through all the objects to
+      # import, yielding them to the supplied block.
+      def each_object_to_import
+        repo = project.import_source
+
+        # We inject the page number here to make sure that all importers always
+        # start where they left off. Simply starting over wouldn't work for
+        # repositories with a lot of data (e.g. tens of thousands of comments).
+        options = collection_options.merge(page: page_counter.current)
+
+        client.each_page(collection_method, repo, options) do |page|
+          # Technically it's possible that the same work is performed multiple
+          # times, as Sidekiq doesn't guarantee there will ever only be one
+          # instance of a job. In such a scenario it's possible for one job to
+          # have a lower page number (e.g. 5) compared to another (e.g. 10). In
+          # this case we skip over all the objects until we have caught up,
+          # reducing the number of duplicate jobs scheduled by the provided
+          # block.
+          next unless page_counter.set(page.number)
+
+          page.objects.each do |object|
+            next if already_imported?(object)
+
+            yield object
+
+            # We mark the object as imported immediately so we don't end up
+            # scheduling it multiple times.
+            mark_as_imported(object)
+          end
+        end
+      end
+
+      # Returns true if the given object has already been imported, false
+      # otherwise.
+      #
+      # object - The object to check.
+      def already_imported?(object)
+        id = id_for_already_imported_cache(object)
+
+        Caching.set_includes?(already_imported_cache_key, id)
+      end
+
+      # Marks the given object as "already imported".
+      def mark_as_imported(object)
+        id = id_for_already_imported_cache(object)
+
+        Caching.set_add(already_imported_cache_key, id)
+      end
+
+      # Returns the ID to use for the cache used for checking if an object has
+      # already been imported or not.
+      #
+      # object - The object we may want to import.
+      def id_for_already_imported_cache(object)
+        raise NotImplementedError
+      end
+
+      # The class used for converting API responses to Hashes when performing
+      # the import.
+      def representation_class
+        raise NotImplementedError
+      end
+
+      # The class to use for importing objects when importing them sequentially.
+      def importer_class
+        raise NotImplementedError
+      end
+
+      # The Sidekiq worker class used for scheduling the importing of objects in
+      # parallel.
+      def sidekiq_worker_class
+        raise NotImplementedError
+      end
+
+      # The name of the method to call to retrieve the data to import.
+      def collection_method
+        raise NotImplementedError
+      end
+
+      # Any options to be passed to the method used for retrieving the data to
+      # import.
+      def collection_options
+        {}
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/github_import/rate_limit_error.rb b/lib/gitlab/github_import/rate_limit_error.rb
new file mode 100644
index 00000000000..cc2de909c29
--- /dev/null
+++ b/lib/gitlab/github_import/rate_limit_error.rb
@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    # Error that will be raised when we're about to reach (or have reached) the
+    # GitHub API's rate limit.
+    RateLimitError = Class.new(StandardError)
+  end
+end
diff --git a/lib/gitlab/github_import/representation.rb b/lib/gitlab/github_import/representation.rb
new file mode 100644
index 00000000000..639477ef2a2
--- /dev/null
+++ b/lib/gitlab/github_import/representation.rb
@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    module Representation
+      TIMESTAMP_KEYS = %i[created_at updated_at merged_at].freeze
+
+      # Converts a Hash with String based keys to one that can be used by the
+      # various Representation classes.
+      #
+      # Example:
+      #
+      #     Representation.symbolize_hash('number' => 10) # => { number: 10 }
+      def self.symbolize_hash(raw_hash = nil)
+        hash = raw_hash.deep_symbolize_keys
+
+        TIMESTAMP_KEYS.each do |key|
+          hash[key] = Time.parse(hash[key]) if hash[key].is_a?(String)
+        end
+
+        hash
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/github_import/representation/diff_note.rb b/lib/gitlab/github_import/representation/diff_note.rb
new file mode 100644
index 00000000000..bb7439a0641
--- /dev/null
+++ b/lib/gitlab/github_import/representation/diff_note.rb
@@ -0,0 +1,87 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    module Representation
+      class DiffNote
+        include ToHash
+        include ExposeAttribute
+
+        attr_reader :attributes
+
+        expose_attribute :noteable_type, :noteable_id, :commit_id, :file_path,
+                         :diff_hunk, :author, :note, :created_at, :updated_at,
+                         :github_id
+
+        NOTEABLE_ID_REGEX = /\/pull\/(?<iid>\d+)/i
+
+        # Builds a diff note from a GitHub API response.
+        #
+        # note - An instance of `Sawyer::Resource` containing the note details.
+        def self.from_api_response(note)
+          matches = note.html_url.match(NOTEABLE_ID_REGEX)
+
+          unless matches
+            raise(
+              ArgumentError,
+              "The note URL #{note.html_url.inspect} is not supported"
+            )
+          end
+
+          user = Representation::User.from_api_response(note.user) if note.user
+          hash = {
+            noteable_type: 'MergeRequest',
+            noteable_id: matches[:iid].to_i,
+            file_path: note.path,
+            commit_id: note.commit_id,
+            diff_hunk: note.diff_hunk,
+            author: user,
+            note: note.body,
+            created_at: note.created_at,
+            updated_at: note.updated_at,
+            github_id: note.id
+          }
+
+          new(hash)
+        end
+
+        # Builds a new note using a Hash that was built from a JSON payload.
+        def self.from_json_hash(raw_hash)
+          hash = Representation.symbolize_hash(raw_hash)
+          hash[:author] &&= Representation::User.from_json_hash(hash[:author])
+
+          new(hash)
+        end
+
+        # attributes - A Hash containing the raw note details. The keys of this
+        #              Hash must be Symbols.
+        def initialize(attributes)
+          @attributes = attributes
+        end
+
+        def line_code
+          diff_line = Gitlab::Diff::Parser.new.parse(diff_hunk.lines).to_a.last
+
+          Gitlab::Git
+            .diff_line_code(file_path, diff_line.new_pos, diff_line.old_pos)
+        end
+
+        # Returns a Hash that can be used to populate `notes.st_diff`, removing
+        # the need for requesting Git data for every diff note.
+        def diff_hash
+          {
+            diff: diff_hunk,
+            new_path: file_path,
+            old_path: file_path,
+
+            # These fields are not displayed for LegacyDiffNote notes, so it
+            # doesn't really matter what we set them to.
+            a_mode: '100644',
+            b_mode: '100644',
+            new_file: false
+          }
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/github_import/representation/expose_attribute.rb b/lib/gitlab/github_import/representation/expose_attribute.rb
new file mode 100644
index 00000000000..c3405759631
--- /dev/null
+++ b/lib/gitlab/github_import/representation/expose_attribute.rb
@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    module Representation
+      module ExposeAttribute
+        extend ActiveSupport::Concern
+
+        module ClassMethods
+          # Defines getter methods for the given attribute names.
+          #
+          # Example:
+          #
+          #     expose_attribute :iid, :title
+          def expose_attribute(*names)
+            names.each do |name|
+              name = name.to_sym
+
+              define_method(name) { attributes[name] }
+            end
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/github_import/representation/issue.rb b/lib/gitlab/github_import/representation/issue.rb
new file mode 100644
index 00000000000..f3071b3e2b3
--- /dev/null
+++ b/lib/gitlab/github_import/representation/issue.rb
@@ -0,0 +1,80 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    module Representation
+      class Issue
+        include ToHash
+        include ExposeAttribute
+
+        attr_reader :attributes
+
+        expose_attribute :iid, :title, :description, :milestone_number,
+                         :created_at, :updated_at, :state, :assignees,
+                         :label_names, :author
+
+        # Builds an issue from a GitHub API response.
+        #
+        # issue - An instance of `Sawyer::Resource` containing the issue
+        #         details.
+        def self.from_api_response(issue)
+          user =
+            if issue.user
+              Representation::User.from_api_response(issue.user)
+            end
+
+          hash = {
+            iid: issue.number,
+            title: issue.title,
+            description: issue.body,
+            milestone_number: issue.milestone&.number,
+            state: issue.state == 'open' ? :opened : :closed,
+            assignees: issue.assignees.map do |u|
+              Representation::User.from_api_response(u)
+            end,
+            label_names: issue.labels.map(&:name),
+            author: user,
+            created_at: issue.created_at,
+            updated_at: issue.updated_at,
+            pull_request: issue.pull_request ? true : false
+          }
+
+          new(hash)
+        end
+
+        # Builds a new issue using a Hash that was built from a JSON payload.
+        def self.from_json_hash(raw_hash)
+          hash = Representation.symbolize_hash(raw_hash)
+
+          hash[:state] = hash[:state].to_sym
+          hash[:assignees].map! { |u| Representation::User.from_json_hash(u) }
+          hash[:author] &&= Representation::User.from_json_hash(hash[:author])
+
+          new(hash)
+        end
+
+        # attributes - A hash containing the raw issue details. The keys of this
+        #              Hash (and any nested hashes) must be symbols.
+        def initialize(attributes)
+          @attributes = attributes
+        end
+
+        def truncated_title
+          title.truncate(255)
+        end
+
+        def labels?
+          label_names && label_names.any?
+        end
+
+        def pull_request?
+          attributes[:pull_request]
+        end
+
+        def issuable_type
+          pull_request? ? 'MergeRequest' : 'Issue'
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/github_import/representation/note.rb b/lib/gitlab/github_import/representation/note.rb
new file mode 100644
index 00000000000..a68bc4c002f
--- /dev/null
+++ b/lib/gitlab/github_import/representation/note.rb
@@ -0,0 +1,70 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    module Representation
+      class Note
+        include ToHash
+        include ExposeAttribute
+
+        attr_reader :attributes
+
+        expose_attribute :noteable_id, :noteable_type, :author, :note,
+                         :created_at, :updated_at, :github_id
+
+        NOTEABLE_TYPE_REGEX = /\/(?<type>(pull|issues))\/(?<iid>\d+)/i
+
+        # Builds a note from a GitHub API response.
+        #
+        # note - An instance of `Sawyer::Resource` containing the note details.
+        def self.from_api_response(note)
+          matches = note.html_url.match(NOTEABLE_TYPE_REGEX)
+
+          if !matches || !matches[:type]
+            raise(
+              ArgumentError,
+              "The note URL #{note.html_url.inspect} is not supported"
+            )
+          end
+
+          noteable_type =
+            if matches[:type] == 'pull'
+              'MergeRequest'
+            else
+              'Issue'
+            end
+
+          user = Representation::User.from_api_response(note.user) if note.user
+          hash = {
+            noteable_type: noteable_type,
+            noteable_id: matches[:iid].to_i,
+            author: user,
+            note: note.body,
+            created_at: note.created_at,
+            updated_at: note.updated_at,
+            github_id: note.id
+          }
+
+          new(hash)
+        end
+
+        # Builds a new note using a Hash that was built from a JSON payload.
+        def self.from_json_hash(raw_hash)
+          hash = Representation.symbolize_hash(raw_hash)
+
+          hash[:author] &&= Representation::User.from_json_hash(hash[:author])
+
+          new(hash)
+        end
+
+        # attributes - A Hash containing the raw note details. The keys of this
+        #              Hash must be Symbols.
+        def initialize(attributes)
+          @attributes = attributes
+        end
+
+        alias_method :issuable_type, :noteable_type
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/github_import/representation/pull_request.rb b/lib/gitlab/github_import/representation/pull_request.rb
new file mode 100644
index 00000000000..593b491a837
--- /dev/null
+++ b/lib/gitlab/github_import/representation/pull_request.rb
@@ -0,0 +1,114 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    module Representation
+      class PullRequest
+        include ToHash
+        include ExposeAttribute
+
+        attr_reader :attributes
+
+        expose_attribute :iid, :title, :description, :source_branch,
+                         :source_branch_sha, :target_branch, :target_branch_sha,
+                         :milestone_number, :author, :assignee, :created_at,
+                         :updated_at, :merged_at, :source_repository_id,
+                         :target_repository_id, :source_repository_owner
+
+        # Builds a PR from a GitHub API response.
+        #
+        # issue - An instance of `Sawyer::Resource` containing the PR details.
+        def self.from_api_response(pr)
+          assignee =
+            if pr.assignee
+              Representation::User.from_api_response(pr.assignee)
+            end
+
+          user = Representation::User.from_api_response(pr.user) if pr.user
+          hash = {
+            iid: pr.number,
+            title: pr.title,
+            description: pr.body,
+            source_branch: pr.head.ref,
+            target_branch: pr.base.ref,
+            source_branch_sha: pr.head.sha,
+            target_branch_sha: pr.base.sha,
+            source_repository_id: pr.head&.repo&.id,
+            target_repository_id: pr.base&.repo&.id,
+            source_repository_owner: pr.head&.user&.login,
+            state: pr.state == 'open' ? :opened : :closed,
+            milestone_number: pr.milestone&.number,
+            author: user,
+            assignee: assignee,
+            created_at: pr.created_at,
+            updated_at: pr.updated_at,
+            merged_at: pr.merged_at
+          }
+
+          new(hash)
+        end
+
+        # Builds a new PR using a Hash that was built from a JSON payload.
+        def self.from_json_hash(raw_hash)
+          hash = Representation.symbolize_hash(raw_hash)
+
+          hash[:state] = hash[:state].to_sym
+          hash[:author] &&= Representation::User.from_json_hash(hash[:author])
+
+          # Assignees are optional so we only convert it from a Hash if one was
+          # set.
+          hash[:assignee] &&= Representation::User
+            .from_json_hash(hash[:assignee])
+
+          new(hash)
+        end
+
+        # attributes - A Hash containing the raw PR details. The keys of this
+        #              Hash (and any nested hashes) must be symbols.
+        def initialize(attributes)
+          @attributes = attributes
+        end
+
+        def truncated_title
+          title.truncate(255)
+        end
+
+        # Returns a formatted source branch.
+        #
+        # For cross-project pull requests the branch name will be in the format
+        # `owner-name:branch-name`.
+        def formatted_source_branch
+          if cross_project? && source_repository_owner
+            "#{source_repository_owner}:#{source_branch}"
+          elsif source_branch == target_branch
+            # Sometimes the source and target branch are the same, but GitLab
+            # doesn't support this. This can happen when both the user and
+            # source repository have been deleted, and the PR was submitted from
+            # the fork's master branch.
+            "#{source_branch}-#{iid}"
+          else
+            source_branch
+          end
+        end
+
+        def state
+          if merged_at
+            :merged
+          else
+            attributes[:state]
+          end
+        end
+
+        def cross_project?
+          return true unless source_repository_id
+
+          source_repository_id != target_repository_id
+        end
+
+        def issuable_type
+          'MergeRequest'
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/github_import/representation/to_hash.rb b/lib/gitlab/github_import/representation/to_hash.rb
new file mode 100644
index 00000000000..4a0f36ab8f0
--- /dev/null
+++ b/lib/gitlab/github_import/representation/to_hash.rb
@@ -0,0 +1,31 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    module Representation
+      module ToHash
+        # Converts the current representation to a Hash. The keys of this Hash
+        # will be Symbols.
+        def to_hash
+          hash = {}
+
+          attributes.each do |key, value|
+            hash[key] = convert_value_for_to_hash(value)
+          end
+
+          hash
+        end
+
+        def convert_value_for_to_hash(value)
+          if value.is_a?(Array)
+            value.map { |v| convert_value_for_to_hash(v) }
+          elsif value.respond_to?(:to_hash)
+            value.to_hash
+          else
+            value
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/github_import/representation/user.rb b/lib/gitlab/github_import/representation/user.rb
new file mode 100644
index 00000000000..e00dcfca33d
--- /dev/null
+++ b/lib/gitlab/github_import/representation/user.rb
@@ -0,0 +1,34 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    module Representation
+      class User
+        include ToHash
+        include ExposeAttribute
+
+        attr_reader :attributes
+
+        expose_attribute :id, :login
+
+        # Builds a user from a GitHub API response.
+        #
+        # user - An instance of `Sawyer::Resource` containing the user details.
+        def self.from_api_response(user)
+          new(id: user.id, login: user.login)
+        end
+
+        # Builds a user using a Hash that was built from a JSON payload.
+        def self.from_json_hash(raw_hash)
+          new(Representation.symbolize_hash(raw_hash))
+        end
+
+        # attributes - A Hash containing the user details. The keys of this
+        #              Hash (and any nested hashes) must be symbols.
+        def initialize(attributes)
+          @attributes = attributes
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/github_import/sequential_importer.rb b/lib/gitlab/github_import/sequential_importer.rb
new file mode 100644
index 00000000000..4f7324536a0
--- /dev/null
+++ b/lib/gitlab/github_import/sequential_importer.rb
@@ -0,0 +1,50 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    # The SequentialImporter imports a GitHub project in a single thread,
+    # without using Sidekiq. This makes it useful for testing purposes as well
+    # as Rake tasks, but it should be avoided for anything else in favour of the
+    # parallel importer.
+    class SequentialImporter
+      attr_reader :project, :client
+
+      SEQUENTIAL_IMPORTERS = [
+        Importer::LabelsImporter,
+        Importer::MilestonesImporter,
+        Importer::ReleasesImporter
+      ].freeze
+
+      PARALLEL_IMPORTERS = [
+        Importer::PullRequestsImporter,
+        Importer::IssuesImporter,
+        Importer::DiffNotesImporter,
+        Importer::NotesImporter
+      ].freeze
+
+      # project - The project to import the data into.
+      # token - The token to use for the GitHub API.
+      def initialize(project, token: nil)
+        @project = project
+        @client = GithubImport
+          .new_client_for(project, token: token, parallel: false)
+      end
+
+      def execute
+        Importer::RepositoryImporter.new(project, client).execute
+
+        SEQUENTIAL_IMPORTERS.each do |klass|
+          klass.new(project, client).execute
+        end
+
+        PARALLEL_IMPORTERS.each do |klass|
+          klass.new(project, client, parallel: false).execute
+        end
+
+        project.repository.after_import
+
+        true
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/github_import/user_finder.rb b/lib/gitlab/github_import/user_finder.rb
new file mode 100644
index 00000000000..be1259662a7
--- /dev/null
+++ b/lib/gitlab/github_import/user_finder.rb
@@ -0,0 +1,164 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    # Class that can be used for finding a GitLab user ID based on a GitHub user
+    # ID or username.
+    #
+    # Any found user IDs are cached in Redis to reduce the number of SQL queries
+    # executed over time. Valid keys are refreshed upon access so frequently
+    # used keys stick around.
+    #
+    # Lookups are cached even if no ID was found to remove the need for querying
+    # the database when most queries are not going to return results anyway.
+    class UserFinder
+      attr_reader :project, :client
+
+      # The base cache key to use for caching user IDs for a given GitHub user
+      # ID.
+      ID_CACHE_KEY = 'github-import/user-finder/user-id/%s'.freeze
+
+      # The base cache key to use for caching user IDs for a given GitHub email
+      # address.
+      ID_FOR_EMAIL_CACHE_KEY =
+        'github-import/user-finder/id-for-email/%s'.freeze
+
+      # The base cache key to use for caching the Email addresses of GitHub
+      # usernames.
+      EMAIL_FOR_USERNAME_CACHE_KEY =
+        'github-import/user-finder/email-for-username/%s'.freeze
+
+      # project - An instance of `Project`
+      # client - An instance of `Gitlab::GithubImport::Client`
+      def initialize(project, client)
+        @project = project
+        @client = client
+      end
+
+      # Returns the GitLab user ID of an object's author.
+      #
+      # If the object has no author ID we'll use the ID of the GitLab ghost
+      # user.
+      def author_id_for(object)
+        id =
+          if object&.author
+            user_id_for(object.author)
+          else
+            GithubImport.ghost_user_id
+          end
+
+        if id
+          [id, true]
+        else
+          [project.creator_id, false]
+        end
+      end
+
+      # Returns the GitLab user ID of an issuable's assignee.
+      def assignee_id_for(issuable)
+        user_id_for(issuable.assignee) if issuable.assignee
+      end
+
+      # Returns the GitLab user ID for a GitHub user.
+      #
+      # user - An instance of `Gitlab::GithubImport::Representation::User`.
+      def user_id_for(user)
+        find(user.id, user.login)
+      end
+
+      # Returns the GitLab ID for the given GitHub ID or username.
+      #
+      # id - The ID of the GitHub user.
+      # username - The username of the GitHub user.
+      def find(id, username)
+        email = email_for_github_username(username)
+        cached, found_id = find_from_cache(id, email)
+
+        return found_id if found_id
+
+        # We only want to query the database if necessary. If previous lookups
+        # didn't yield a user ID we won't query the database again until the
+        # keys expire.
+        find_id_from_database(id, email) unless cached
+      end
+
+      # Finds a user ID from the cache for a given GitHub ID or Email.
+      def find_from_cache(id, email = nil)
+        id_exists, id_for_github_id = cached_id_for_github_id(id)
+
+        return [id_exists, id_for_github_id] if id_for_github_id
+
+        # Just in case no Email address could be retrieved (for whatever reason)
+        return [false] unless email
+
+        cached_id_for_github_email(email)
+      end
+
+      # Finds a GitLab user ID from the database for a given GitHub user ID or
+      # Email.
+      def find_id_from_database(id, email)
+        id_for_github_id(id) || id_for_github_email(email)
+      end
+
+      def email_for_github_username(username)
+        cache_key = EMAIL_FOR_USERNAME_CACHE_KEY % username
+        email = Caching.read(cache_key)
+
+        unless email
+          user = client.user(username)
+          email = Caching.write(cache_key, user.email) if user
+        end
+
+        email
+      end
+
+      def cached_id_for_github_id(id)
+        read_id_from_cache(ID_CACHE_KEY % id)
+      end
+
+      def cached_id_for_github_email(email)
+        read_id_from_cache(ID_FOR_EMAIL_CACHE_KEY % email)
+      end
+
+      # Queries and caches the GitLab user ID for a GitHub user ID, if one was
+      # found.
+      def id_for_github_id(id)
+        gitlab_id = query_id_for_github_id(id) || nil
+
+        Caching.write(ID_CACHE_KEY % id, gitlab_id)
+      end
+
+      # Queries and caches the GitLab user ID for a GitHub email, if one was
+      # found.
+      def id_for_github_email(email)
+        gitlab_id = query_id_for_github_email(email) || nil
+
+        Caching.write(ID_FOR_EMAIL_CACHE_KEY % email, gitlab_id)
+      end
+
+      def query_id_for_github_id(id)
+        User.for_github_id(id).pluck(:id).first
+      end
+
+      def query_id_for_github_email(email)
+        User.by_any_email(email).pluck(:id).first
+      end
+
+      # Reads an ID from the cache.
+      #
+      # The return value is an Array with two values:
+      #
+      # 1. A boolean indicating if the key was present or not.
+      # 2. The ID as an Integer, or nil in case no ID could be found.
+      def read_id_from_cache(key)
+        value = Caching.read(key)
+        exists = !value.nil?
+        number = value.to_i
+
+        # The cache key may be empty to indicate a previously looked up user for
+        # which we couldn't find an ID.
+        [exists, number.positive? ? number : nil]
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/gon_helper.rb b/lib/gitlab/gon_helper.rb
index 3a666c2268b..dfcdfc307b6 100644
--- a/lib/gitlab/gon_helper.rb
+++ b/lib/gitlab/gon_helper.rb
@@ -20,7 +20,7 @@ module Gitlab
       gon.gitlab_url             = Gitlab.config.gitlab.url
       gon.revision               = Gitlab::REVISION
       gon.gitlab_logo            = ActionController::Base.helpers.asset_path('gitlab_logo.png')
-      gon.sprite_icons           = ActionController::Base.helpers.asset_path('icons.svg')
+      gon.sprite_icons           = IconsHelper.sprite_icon_path
 
       if current_user
         gon.current_user_id = current_user.id
diff --git a/lib/gitlab/hook_data/issue_builder.rb b/lib/gitlab/hook_data/issue_builder.rb
index de9cab80a02..e29dd0d5b0e 100644
--- a/lib/gitlab/hook_data/issue_builder.rb
+++ b/lib/gitlab/hook_data/issue_builder.rb
@@ -4,7 +4,6 @@ module Gitlab
       SAFE_HOOK_ATTRIBUTES = %i[
         assignee_id
         author_id
-        branch_name
         closed_at
         confidential
         created_at
@@ -29,6 +28,7 @@ module Gitlab
       SAFE_HOOK_RELATIONS = %i[
         assignees
         labels
+        total_time_spent
       ].freeze
 
       attr_accessor :issue
diff --git a/lib/gitlab/hook_data/merge_request_builder.rb b/lib/gitlab/hook_data/merge_request_builder.rb
index eaef19c9d04..ae9b68eb648 100644
--- a/lib/gitlab/hook_data/merge_request_builder.rb
+++ b/lib/gitlab/hook_data/merge_request_builder.rb
@@ -19,7 +19,6 @@ module Gitlab
         merge_user_id
         merge_when_pipeline_succeeds
         milestone_id
-        ref_fetched
         source_branch
         source_project_id
         state
@@ -34,6 +33,7 @@ module Gitlab
       SAFE_HOOK_RELATIONS = %i[
         assignee
         labels
+        total_time_spent
       ].freeze
 
       attr_accessor :merge_request
diff --git a/lib/gitlab/import_export/import_export.yml b/lib/gitlab/import_export/import_export.yml
index 561779182bc..263599831bf 100644
--- a/lib/gitlab/import_export/import_export.yml
+++ b/lib/gitlab/import_export/import_export.yml
@@ -54,7 +54,6 @@ project_tree:
   - :auto_devops
   - :triggers
   - :pipeline_schedules
-  - :cluster
   - :services
   - :hooks
   - protected_branches:
@@ -63,6 +62,7 @@ project_tree:
   - protected_tags:
     - :create_access_levels
   - :project_feature
+  - :custom_attributes
 
 # Only include the following attributes for the models specified.
 included_attributes:
diff --git a/lib/gitlab/import_export/importer.rb b/lib/gitlab/import_export/importer.rb
index fbdd74788bc..c14646b0611 100644
--- a/lib/gitlab/import_export/importer.rb
+++ b/lib/gitlab/import_export/importer.rb
@@ -1,6 +1,10 @@
 module Gitlab
   module ImportExport
     class Importer
+      def self.imports_repository?
+        true
+      end
+
       def initialize(project)
         @archive_file = project.import_source
         @current_user = project.creator
diff --git a/lib/gitlab/import_export/merge_request_parser.rb b/lib/gitlab/import_export/merge_request_parser.rb
index 81a213e8321..61db4bd9ccc 100644
--- a/lib/gitlab/import_export/merge_request_parser.rb
+++ b/lib/gitlab/import_export/merge_request_parser.rb
@@ -26,7 +26,7 @@ module Gitlab
       end
 
       def fetch_ref
-        @project.repository.fetch_ref(@project.repository.path, @diff_head_sha, @merge_request.source_branch)
+        @project.repository.fetch_ref(@project.repository, source_ref: @diff_head_sha, target_ref: @merge_request.source_branch)
       end
 
       def branch_exists?(branch_name)
diff --git a/lib/gitlab/import_export/relation_factory.rb b/lib/gitlab/import_export/relation_factory.rb
index 469b230377d..2b34ceb5831 100644
--- a/lib/gitlab/import_export/relation_factory.rb
+++ b/lib/gitlab/import_export/relation_factory.rb
@@ -8,8 +8,6 @@ module Gitlab
                     triggers: 'Ci::Trigger',
                     pipeline_schedules: 'Ci::PipelineSchedule',
                     builds: 'Ci::Build',
-                    cluster: 'Gcp::Cluster',
-                    clusters: 'Gcp::Cluster',
                     hooks: 'ProjectHook',
                     merge_access_levels: 'ProtectedBranch::MergeAccessLevel',
                     push_access_levels: 'ProtectedBranch::PushAccessLevel',
@@ -17,7 +15,8 @@ module Gitlab
                     labels: :project_labels,
                     priorities: :label_priorities,
                     auto_devops: :project_auto_devops,
-                    label: :project_label }.freeze
+                    label: :project_label,
+                    custom_attributes: 'ProjectCustomAttribute' }.freeze
 
       USER_REFERENCES = %w[author_id assignee_id updated_by_id user_id created_by_id last_edited_by_id merge_user_id resolved_by_id].freeze
 
diff --git a/lib/gitlab/import_sources.rb b/lib/gitlab/import_sources.rb
index 5404dc11a87..eeb03625479 100644
--- a/lib/gitlab/import_sources.rb
+++ b/lib/gitlab/import_sources.rb
@@ -8,14 +8,14 @@ module Gitlab
     ImportSource = Struct.new(:name, :title, :importer)
 
     ImportTable = [
-      ImportSource.new('github',         'GitHub',        Github::Import),
+      ImportSource.new('github',         'GitHub',        Gitlab::GithubImport::ParallelImporter),
       ImportSource.new('bitbucket',      'Bitbucket',     Gitlab::BitbucketImport::Importer),
       ImportSource.new('gitlab',         'GitLab.com',    Gitlab::GitlabImport::Importer),
       ImportSource.new('google_code',    'Google Code',   Gitlab::GoogleCodeImport::Importer),
       ImportSource.new('fogbugz',        'FogBugz',       Gitlab::FogbugzImport::Importer),
       ImportSource.new('git',            'Repo by URL',   nil),
       ImportSource.new('gitlab_project', 'GitLab export', Gitlab::ImportExport::Importer),
-      ImportSource.new('gitea',          'Gitea',         Gitlab::GithubImport::Importer)
+      ImportSource.new('gitea',          'Gitea',         Gitlab::LegacyGithubImport::Importer)
     ].freeze
 
     class << self
diff --git a/lib/gitlab/issuable_metadata.rb b/lib/gitlab/issuable_metadata.rb
index 977c05910d3..0c9de72329c 100644
--- a/lib/gitlab/issuable_metadata.rb
+++ b/lib/gitlab/issuable_metadata.rb
@@ -1,6 +1,14 @@
 module Gitlab
   module IssuableMetadata
     def issuable_meta_data(issuable_collection, collection_type)
+      # ActiveRecord uses Object#extend for null relations.
+      if !(issuable_collection.singleton_class < ActiveRecord::NullRelation) &&
+          issuable_collection.respond_to?(:limit_value) &&
+          issuable_collection.limit_value.nil?
+
+        raise 'Collection must have a limit applied for preloading meta-data'
+      end
+
       # map has to be used here since using pluck or select will
       # throw an error when ordering issuables by priority which inserts
       # a new order into the collection.
diff --git a/lib/gitlab/job_waiter.rb b/lib/gitlab/job_waiter.rb
index 4d6bbda15f3..f654508c391 100644
--- a/lib/gitlab/job_waiter.rb
+++ b/lib/gitlab/job_waiter.rb
@@ -19,11 +19,13 @@ module Gitlab
       Gitlab::Redis::SharedState.with { |redis| redis.lpush(key, jid) }
     end
 
-    attr_reader :key, :jobs_remaining, :finished
+    attr_reader :key, :finished
+    attr_accessor :jobs_remaining
 
     # jobs_remaining - the number of jobs left to wait for
-    def initialize(jobs_remaining)
-      @key = "gitlab:job_waiter:#{SecureRandom.uuid}"
+    # key - The key of this waiter.
+    def initialize(jobs_remaining = 0, key = "gitlab:job_waiter:#{SecureRandom.uuid}")
+      @key = key
       @jobs_remaining = jobs_remaining
       @finished = []
     end
diff --git a/lib/gitlab/kubernetes/helm.rb b/lib/gitlab/kubernetes/helm.rb
new file mode 100644
index 00000000000..7a50f07f3c5
--- /dev/null
+++ b/lib/gitlab/kubernetes/helm.rb
@@ -0,0 +1,96 @@
+module Gitlab
+  module Kubernetes
+    class Helm
+      HELM_VERSION = '2.7.0'.freeze
+      NAMESPACE = 'gitlab-managed-apps'.freeze
+      INSTALL_DEPS = <<-EOS.freeze
+        set -eo pipefail
+        apk add -U ca-certificates openssl >/dev/null
+        wget -q -O - https://kubernetes-helm.storage.googleapis.com/helm-v${HELM_VERSION}-linux-amd64.tar.gz | tar zxC /tmp >/dev/null
+        mv /tmp/linux-amd64/helm /usr/bin/
+      EOS
+
+      InstallCommand = Struct.new(:name, :install_helm, :chart) do
+        def pod_name
+          "install-#{name}"
+        end
+      end
+
+      def initialize(kubeclient)
+        @kubeclient = kubeclient
+        @namespace = Namespace.new(NAMESPACE, kubeclient)
+      end
+
+      def install(command)
+        @namespace.ensure_exists!
+        @kubeclient.create_pod(pod_resource(command))
+      end
+
+      ##
+      # Returns Pod phase
+      #
+      # https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle/#pod-phase
+      #
+      # values: "Pending", "Running", "Succeeded", "Failed", "Unknown"
+      #
+      def installation_status(pod_name)
+        @kubeclient.get_pod(pod_name, @namespace.name).status.phase
+      end
+
+      def installation_log(pod_name)
+        @kubeclient.get_pod_log(pod_name, @namespace.name).body
+      end
+
+      def delete_installation_pod!(pod_name)
+        @kubeclient.delete_pod(pod_name, @namespace.name)
+      end
+
+      private
+
+      def pod_resource(command)
+        labels = { 'gitlab.org/action': 'install', 'gitlab.org/application': command.name }
+        metadata = { name: command.pod_name, namespace: @namespace.name, labels: labels }
+        container = {
+          name: 'helm',
+          image: 'alpine:3.6',
+          env: generate_pod_env(command),
+          command: %w(/bin/sh),
+          args: %w(-c $(COMMAND_SCRIPT))
+        }
+        spec = { containers: [container], restartPolicy: 'Never' }
+
+        ::Kubeclient::Resource.new(metadata: metadata, spec: spec)
+      end
+
+      def generate_pod_env(command)
+        {
+          HELM_VERSION: HELM_VERSION,
+          TILLER_NAMESPACE: @namespace.name,
+          COMMAND_SCRIPT: generate_script(command)
+        }.map { |key, value| { name: key, value: value } }
+      end
+
+      def generate_script(command)
+        [
+            INSTALL_DEPS,
+            helm_init_command(command),
+            helm_install_command(command)
+        ].join("\n")
+      end
+
+      def helm_init_command(command)
+        if command.install_helm
+          'helm init >/dev/null'
+        else
+          'helm init --client-only >/dev/null'
+        end
+      end
+
+      def helm_install_command(command)
+        return if command.chart.nil?
+
+        "helm install #{command.chart} --name #{command.name} --namespace #{@namespace.name} >/dev/null"
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/kubernetes/namespace.rb b/lib/gitlab/kubernetes/namespace.rb
new file mode 100644
index 00000000000..c8479fbc0e8
--- /dev/null
+++ b/lib/gitlab/kubernetes/namespace.rb
@@ -0,0 +1,29 @@
+module Gitlab
+  module Kubernetes
+    class Namespace
+      attr_accessor :name
+
+      def initialize(name, client)
+        @name = name
+        @client = client
+      end
+
+      def exists?
+        @client.get_namespace(name)
+      rescue ::KubeException => ke
+        raise ke unless ke.error_code == 404
+        false
+      end
+
+      def create!
+        resource = ::Kubeclient::Resource.new(metadata: { name: name })
+
+        @client.create_namespace(resource)
+      end
+
+      def ensure_exists!
+        exists? || create!
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/kubernetes/pod.rb b/lib/gitlab/kubernetes/pod.rb
new file mode 100644
index 00000000000..f3842cdf762
--- /dev/null
+++ b/lib/gitlab/kubernetes/pod.rb
@@ -0,0 +1,12 @@
+module Gitlab
+  module Kubernetes
+    module Pod
+      PENDING   = 'Pending'.freeze
+      RUNNING   = 'Running'.freeze
+      SUCCEEDED = 'Succeeded'.freeze
+      FAILED    = 'Failed'.freeze
+      UNKNOWN   = 'Unknown'.freeze
+      PHASES    = [PENDING, RUNNING, SUCCEEDED, FAILED, UNKNOWN].freeze
+    end
+  end
+end
diff --git a/lib/gitlab/github_import/base_formatter.rb b/lib/gitlab/legacy_github_import/base_formatter.rb
index f330041cc00..2f07fde406c 100644
--- a/lib/gitlab/github_import/base_formatter.rb
+++ b/lib/gitlab/legacy_github_import/base_formatter.rb
@@ -1,5 +1,5 @@
 module Gitlab
-  module GithubImport
+  module LegacyGithubImport
     class BaseFormatter
       attr_reader :client, :formatter, :project, :raw_data
 
diff --git a/lib/gitlab/github_import/branch_formatter.rb b/lib/gitlab/legacy_github_import/branch_formatter.rb
index 8aa885fb811..80fe1d67209 100644
--- a/lib/gitlab/github_import/branch_formatter.rb
+++ b/lib/gitlab/legacy_github_import/branch_formatter.rb
@@ -1,5 +1,5 @@
 module Gitlab
-  module GithubImport
+  module LegacyGithubImport
     class BranchFormatter < BaseFormatter
       delegate :repo, :sha, :ref, to: :raw_data
 
diff --git a/lib/gitlab/legacy_github_import/client.rb b/lib/gitlab/legacy_github_import/client.rb
new file mode 100644
index 00000000000..53c910d44bd
--- /dev/null
+++ b/lib/gitlab/legacy_github_import/client.rb
@@ -0,0 +1,148 @@
+module Gitlab
+  module LegacyGithubImport
+    class Client
+      GITHUB_SAFE_REMAINING_REQUESTS = 100
+      GITHUB_SAFE_SLEEP_TIME = 500
+
+      attr_reader :access_token, :host, :api_version
+
+      def initialize(access_token, host: nil, api_version: 'v3')
+        @access_token = access_token
+        @host = host.to_s.sub(%r{/+\z}, '')
+        @api_version = api_version
+        @users = {}
+
+        if access_token
+          ::Octokit.auto_paginate = false
+        end
+      end
+
+      def api
+        @api ||= ::Octokit::Client.new(
+          access_token: access_token,
+          api_endpoint: api_endpoint,
+          # If there is no config, we're connecting to github.com and we
+          # should verify ssl.
+          connection_options: {
+            ssl: { verify: config ? config['verify_ssl'] : true }
+          }
+        )
+      end
+
+      def client
+        unless config
+          raise Projects::ImportService::Error,
+            'OAuth configuration for GitHub missing.'
+        end
+
+        @client ||= ::OAuth2::Client.new(
+          config.app_id,
+          config.app_secret,
+          github_options.merge(ssl: { verify: config['verify_ssl'] })
+        )
+      end
+
+      def authorize_url(redirect_uri)
+        client.auth_code.authorize_url({
+          redirect_uri: redirect_uri,
+          scope: "repo, user, user:email"
+        })
+      end
+
+      def get_token(code)
+        client.auth_code.get_token(code).token
+      end
+
+      def method_missing(method, *args, &block)
+        if api.respond_to?(method)
+          request(method, *args, &block)
+        else
+          super(method, *args, &block)
+        end
+      end
+
+      def respond_to?(method)
+        api.respond_to?(method) || super
+      end
+
+      def user(login)
+        return nil unless login.present?
+        return @users[login] if @users.key?(login)
+
+        @users[login] = api.user(login)
+      end
+
+      private
+
+      def api_endpoint
+        if host.present? && api_version.present?
+          "#{host}/api/#{api_version}"
+        else
+          github_options[:site]
+        end
+      end
+
+      def config
+        Gitlab.config.omniauth.providers.find { |provider| provider.name == "github" }
+      end
+
+      def github_options
+        if config
+          config["args"]["client_options"].deep_symbolize_keys
+        else
+          OmniAuth::Strategies::GitHub.default_options[:client_options].symbolize_keys
+        end
+      end
+
+      def rate_limit
+        api.rate_limit!
+      # GitHub Rate Limit API returns 404 when the rate limit is
+      # disabled. In this case we just want to return gracefully
+      # instead of spitting out an error.
+      rescue Octokit::NotFound
+        nil
+      end
+
+      def has_rate_limit?
+        return @has_rate_limit if defined?(@has_rate_limit)
+
+        @has_rate_limit = rate_limit.present?
+      end
+
+      def rate_limit_exceed?
+        has_rate_limit? && rate_limit.remaining <= GITHUB_SAFE_REMAINING_REQUESTS
+      end
+
+      def rate_limit_sleep_time
+        rate_limit.resets_in + GITHUB_SAFE_SLEEP_TIME
+      end
+
+      def request(method, *args, &block)
+        sleep rate_limit_sleep_time if rate_limit_exceed?
+
+        data = api.__send__(method, *args) # rubocop:disable GitlabSecurity/PublicSend
+        return data unless data.is_a?(Array)
+
+        last_response = api.last_response
+
+        if block_given?
+          yield data
+          # api.last_response could change while we're yielding (e.g. fetching labels for each PR)
+          # so we cache our own last response
+          each_response_page(last_response, &block)
+        else
+          each_response_page(last_response) { |page| data.concat(page) }
+          data
+        end
+      end
+
+      def each_response_page(last_response)
+        while last_response.rels[:next]
+          sleep rate_limit_sleep_time if rate_limit_exceed?
+          last_response = last_response.rels[:next].get
+          yield last_response.data if last_response.data.is_a?(Array)
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/github_import/comment_formatter.rb b/lib/gitlab/legacy_github_import/comment_formatter.rb
index 8911b81ec9a..d2c7a8ae9f4 100644
--- a/lib/gitlab/github_import/comment_formatter.rb
+++ b/lib/gitlab/legacy_github_import/comment_formatter.rb
@@ -1,5 +1,5 @@
 module Gitlab
-  module GithubImport
+  module LegacyGithubImport
     class CommentFormatter < BaseFormatter
       attr_writer :author_id
 
diff --git a/lib/gitlab/github_import/importer.rb b/lib/gitlab/legacy_github_import/importer.rb
index b8c07460ebb..12c968805f5 100644
--- a/lib/gitlab/github_import/importer.rb
+++ b/lib/gitlab/legacy_github_import/importer.rb
@@ -1,5 +1,5 @@
 module Gitlab
-  module GithubImport
+  module LegacyGithubImport
     class Importer
       include Gitlab::ShellAdapter
 
diff --git a/lib/gitlab/github_import/issuable_formatter.rb b/lib/gitlab/legacy_github_import/issuable_formatter.rb
index 27b171d6ddb..de55382d3ad 100644
--- a/lib/gitlab/github_import/issuable_formatter.rb
+++ b/lib/gitlab/legacy_github_import/issuable_formatter.rb
@@ -1,5 +1,5 @@
 module Gitlab
-  module GithubImport
+  module LegacyGithubImport
     class IssuableFormatter < BaseFormatter
       attr_writer :assignee_id, :author_id
 
diff --git a/lib/gitlab/github_import/issue_formatter.rb b/lib/gitlab/legacy_github_import/issue_formatter.rb
index 977cd0423ba..4c8825ccf19 100644
--- a/lib/gitlab/github_import/issue_formatter.rb
+++ b/lib/gitlab/legacy_github_import/issue_formatter.rb
@@ -1,5 +1,5 @@
 module Gitlab
-  module GithubImport
+  module LegacyGithubImport
     class IssueFormatter < IssuableFormatter
       def attributes
         {
diff --git a/lib/gitlab/github_import/label_formatter.rb b/lib/gitlab/legacy_github_import/label_formatter.rb
index 211ccdc51bb..c3eed12e739 100644
--- a/lib/gitlab/github_import/label_formatter.rb
+++ b/lib/gitlab/legacy_github_import/label_formatter.rb
@@ -1,5 +1,5 @@
 module Gitlab
-  module GithubImport
+  module LegacyGithubImport
     class LabelFormatter < BaseFormatter
       def attributes
         {
diff --git a/lib/gitlab/github_import/milestone_formatter.rb b/lib/gitlab/legacy_github_import/milestone_formatter.rb
index dd782eff059..a565294384d 100644
--- a/lib/gitlab/github_import/milestone_formatter.rb
+++ b/lib/gitlab/legacy_github_import/milestone_formatter.rb
@@ -1,5 +1,5 @@
 module Gitlab
-  module GithubImport
+  module LegacyGithubImport
     class MilestoneFormatter < BaseFormatter
       def attributes
         {
diff --git a/lib/gitlab/github_import/project_creator.rb b/lib/gitlab/legacy_github_import/project_creator.rb
index a55adc9b1c8..41e7eac4d08 100644
--- a/lib/gitlab/github_import/project_creator.rb
+++ b/lib/gitlab/legacy_github_import/project_creator.rb
@@ -1,5 +1,5 @@
 module Gitlab
-  module GithubImport
+  module LegacyGithubImport
     class ProjectCreator
       include Gitlab::CurrentSettings
 
diff --git a/lib/gitlab/github_import/pull_request_formatter.rb b/lib/gitlab/legacy_github_import/pull_request_formatter.rb
index 150afa31432..94c2e99066a 100644
--- a/lib/gitlab/github_import/pull_request_formatter.rb
+++ b/lib/gitlab/legacy_github_import/pull_request_formatter.rb
@@ -1,5 +1,5 @@
 module Gitlab
-  module GithubImport
+  module LegacyGithubImport
     class PullRequestFormatter < IssuableFormatter
       delegate :user, :project, :ref, :repo, :sha, to: :source_branch, prefix: true
       delegate :user, :exists?, :project, :ref, :repo, :sha, :short_sha, to: :target_branch, prefix: true
diff --git a/lib/gitlab/github_import/release_formatter.rb b/lib/gitlab/legacy_github_import/release_formatter.rb
index 1ad702a6058..3ed9d4f76da 100644
--- a/lib/gitlab/github_import/release_formatter.rb
+++ b/lib/gitlab/legacy_github_import/release_formatter.rb
@@ -1,5 +1,5 @@
 module Gitlab
-  module GithubImport
+  module LegacyGithubImport
     class ReleaseFormatter < BaseFormatter
       def attributes
         {
diff --git a/lib/gitlab/github_import/user_formatter.rb b/lib/gitlab/legacy_github_import/user_formatter.rb
index 04c2964da20..6d8055622f1 100644
--- a/lib/gitlab/github_import/user_formatter.rb
+++ b/lib/gitlab/legacy_github_import/user_formatter.rb
@@ -1,5 +1,5 @@
 module Gitlab
-  module GithubImport
+  module LegacyGithubImport
     class UserFormatter
       attr_reader :client, :raw
 
diff --git a/lib/gitlab/github_import/wiki_formatter.rb b/lib/gitlab/legacy_github_import/wiki_formatter.rb
index ca8d96f5650..27f45875c7c 100644
--- a/lib/gitlab/github_import/wiki_formatter.rb
+++ b/lib/gitlab/legacy_github_import/wiki_formatter.rb
@@ -1,5 +1,5 @@
 module Gitlab
-  module GithubImport
+  module LegacyGithubImport
     class WikiFormatter
       attr_reader :project
 
diff --git a/lib/gitlab/lfs_token.rb b/lib/gitlab/lfs_token.rb
index 8e57ba831c5..ead5d566871 100644
--- a/lib/gitlab/lfs_token.rb
+++ b/lib/gitlab/lfs_token.rb
@@ -27,6 +27,10 @@ module Gitlab
       end
     end
 
+    def deploy_key_pushable?(project)
+      actor.is_a?(DeployKey) && actor.can_push_to?(project)
+    end
+
     def user?
       actor.is_a?(User)
     end
diff --git a/lib/gitlab/metrics/background_transaction.rb b/lib/gitlab/metrics/background_transaction.rb
new file mode 100644
index 00000000000..5919ebb1493
--- /dev/null
+++ b/lib/gitlab/metrics/background_transaction.rb
@@ -0,0 +1,14 @@
+module Gitlab
+  module Metrics
+    class BackgroundTransaction < Transaction
+      def initialize(worker_class)
+        super()
+        @worker_class = worker_class
+      end
+
+      def labels
+        { controller: @worker_class.name, action: 'perform' }
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/metrics/base_sampler.rb b/lib/gitlab/metrics/base_sampler.rb
deleted file mode 100644
index 716d20bb91a..00000000000
--- a/lib/gitlab/metrics/base_sampler.rb
+++ /dev/null
@@ -1,63 +0,0 @@
-require 'logger'
-module Gitlab
-  module Metrics
-    class BaseSampler < Daemon
-      # interval - The sampling interval in seconds.
-      def initialize(interval)
-        interval_half = interval.to_f / 2
-
-        @interval = interval
-        @interval_steps = (-interval_half..interval_half).step(0.1).to_a
-
-        super()
-      end
-
-      def safe_sample
-        sample
-      rescue => e
-        Rails.logger.warn("#{self.class}: #{e}, stopping")
-        stop
-      end
-
-      def sample
-        raise NotImplementedError
-      end
-
-      # Returns the sleep interval with a random adjustment.
-      #
-      # The random adjustment is put in place to ensure we:
-      #
-      # 1. Don't generate samples at the exact same interval every time (thus
-      #    potentially missing anything that happens in between samples).
-      # 2. Don't sample data at the same interval two times in a row.
-      def sleep_interval
-        while (step = @interval_steps.sample)
-          if step != @last_step
-            @last_step = step
-
-            return @interval + @last_step
-          end
-        end
-      end
-
-      private
-
-      attr_reader :running
-
-      def start_working
-        @running = true
-        sleep(sleep_interval)
-
-        while running
-          safe_sample
-
-          sleep(sleep_interval)
-        end
-      end
-
-      def stop_working
-        @running = false
-      end
-    end
-  end
-end
diff --git a/lib/gitlab/metrics/influx_db.rb b/lib/gitlab/metrics/influx_db.rb
index c4dc061eda1..3c5f9099584 100644
--- a/lib/gitlab/metrics/influx_db.rb
+++ b/lib/gitlab/metrics/influx_db.rb
@@ -11,6 +11,8 @@ module Gitlab
         settings[:enabled] || false
       end
 
+      # Prometheus histogram buckets used for arbitrary code measurements
+      EXECUTION_MEASUREMENT_BUCKETS = [0.001, 0.002, 0.005, 0.01, 0.025, 0.05, 0.1, 0.25, 0.5, 1].freeze
       RAILS_ROOT = Rails.root.to_s
       METRICS_ROOT = Rails.root.join('lib', 'gitlab', 'metrics').to_s
       PATH_REGEX = /^#{RAILS_ROOT}\/?/
@@ -99,24 +101,27 @@ module Gitlab
         cpu_stop = System.cpu_time
         real_stop = Time.now.to_f
 
-        real_time = (real_stop - real_start) * 1000.0
+        real_time = (real_stop - real_start)
         cpu_time = cpu_stop - cpu_start
 
-        trans.increment("#{name}_real_time", real_time)
-        trans.increment("#{name}_cpu_time", cpu_time)
-        trans.increment("#{name}_call_count", 1)
+        Gitlab::Metrics.histogram("gitlab_#{name}_real_duration_seconds".to_sym,
+                                  "Measure #{name}",
+                                  Transaction::BASE_LABELS,
+                                  EXECUTION_MEASUREMENT_BUCKETS)
+          .observe(trans.labels, real_time)
 
-        retval
-      end
+        Gitlab::Metrics.histogram("gitlab_#{name}_cpu_duration_seconds".to_sym,
+                                  "Measure #{name}",
+                                  Transaction::BASE_LABELS,
+                                  EXECUTION_MEASUREMENT_BUCKETS)
+          .observe(trans.labels, cpu_time / 1000.0)
 
-      # Adds a tag to the current transaction (if any)
-      #
-      # name - The name of the tag to add.
-      # value - The value of the tag.
-      def tag_transaction(name, value)
-        trans = current_transaction
+        # InfluxDB stores the _real_time time values as milliseconds
+        trans.increment("#{name}_real_time", real_time * 1000, false)
+        trans.increment("#{name}_cpu_time", cpu_time, false)
+        trans.increment("#{name}_call_count", 1, false)
 
-        trans&.add_tag(name, value)
+        retval
       end
 
       # Sets the action of the current transaction (if any)
diff --git a/lib/gitlab/metrics/influx_sampler.rb b/lib/gitlab/metrics/influx_sampler.rb
deleted file mode 100644
index 6db1dd755b7..00000000000
--- a/lib/gitlab/metrics/influx_sampler.rb
+++ /dev/null
@@ -1,101 +0,0 @@
-module Gitlab
-  module Metrics
-    # Class that sends certain metrics to InfluxDB at a specific interval.
-    #
-    # This class is used to gather statistics that can't be directly associated
-    # with a transaction such as system memory usage, garbage collection
-    # statistics, etc.
-    class InfluxSampler < BaseSampler
-      # interval - The sampling interval in seconds.
-      def initialize(interval = Metrics.settings[:sample_interval])
-        super(interval)
-        @last_step = nil
-
-        @metrics = []
-
-        @last_minor_gc = Delta.new(GC.stat[:minor_gc_count])
-        @last_major_gc = Delta.new(GC.stat[:major_gc_count])
-
-        if Gitlab::Metrics.mri?
-          require 'allocations'
-
-          Allocations.start
-        end
-      end
-
-      def sample
-        sample_memory_usage
-        sample_file_descriptors
-        sample_objects
-        sample_gc
-
-        flush
-      ensure
-        GC::Profiler.clear
-        @metrics.clear
-      end
-
-      def flush
-        Metrics.submit_metrics(@metrics.map(&:to_hash))
-      end
-
-      def sample_memory_usage
-        add_metric('memory_usage', value: System.memory_usage)
-      end
-
-      def sample_file_descriptors
-        add_metric('file_descriptors', value: System.file_descriptor_count)
-      end
-
-      if Metrics.mri?
-        def sample_objects
-          sample = Allocations.to_hash
-          counts = sample.each_with_object({}) do |(klass, count), hash|
-            name = klass.name
-
-            next unless name
-
-            hash[name] = count
-          end
-
-          # Symbols aren't allocated so we'll need to add those manually.
-          counts['Symbol'] = Symbol.all_symbols.length
-
-          counts.each do |name, count|
-            add_metric('object_counts', { count: count }, type: name)
-          end
-        end
-      else
-        def sample_objects
-        end
-      end
-
-      def sample_gc
-        time = GC::Profiler.total_time * 1000.0
-        stats = GC.stat.merge(total_time: time)
-
-        # We want the difference of GC runs compared to the last sample, not the
-        # total amount since the process started.
-        stats[:minor_gc_count] =
-          @last_minor_gc.compared_with(stats[:minor_gc_count])
-
-        stats[:major_gc_count] =
-          @last_major_gc.compared_with(stats[:major_gc_count])
-
-        stats[:count] = stats[:minor_gc_count] + stats[:major_gc_count]
-
-        add_metric('gc_statistics', stats)
-      end
-
-      def add_metric(series, values, tags = {})
-        prefix = sidekiq? ? 'sidekiq_' : 'rails_'
-
-        @metrics << Metric.new("#{prefix}#{series}", values, tags)
-      end
-
-      def sidekiq?
-        Sidekiq.server?
-      end
-    end
-  end
-end
diff --git a/lib/gitlab/metrics/instrumentation.rb b/lib/gitlab/metrics/instrumentation.rb
index 6aa38542cb4..023e9963493 100644
--- a/lib/gitlab/metrics/instrumentation.rb
+++ b/lib/gitlab/metrics/instrumentation.rb
@@ -118,19 +118,21 @@ module Gitlab
       def self.instrument(type, mod, name)
         return unless Metrics.enabled?
 
-        name   = name.to_sym
+        name = name.to_sym
         target = type == :instance ? mod : mod.singleton_class
 
         if type == :instance
           target = mod
-          label  = "#{mod.name}##{name}"
+          method_name = "##{name}"
           method = mod.instance_method(name)
         else
           target = mod.singleton_class
-          label  = "#{mod.name}.#{name}"
+          method_name = ".#{name}"
           method = mod.method(name)
         end
 
+        label = "#{mod.name}#{method_name}"
+
         unless instrumented?(target)
           target.instance_variable_set(PROXY_IVAR, Module.new)
         end
@@ -153,7 +155,8 @@ module Gitlab
         proxy_module.class_eval <<-EOF, __FILE__, __LINE__ + 1
           def #{name}(#{args_signature})
             if trans = Gitlab::Metrics::Instrumentation.transaction
-              trans.method_call_for(#{label.to_sym.inspect}).measure { super }
+              trans.method_call_for(#{label.to_sym.inspect}, #{mod.name.inspect}, "#{method_name}")
+                .measure { super }
             else
               super
             end
diff --git a/lib/gitlab/metrics/method_call.rb b/lib/gitlab/metrics/method_call.rb
index d3465e5ec19..90235095306 100644
--- a/lib/gitlab/metrics/method_call.rb
+++ b/lib/gitlab/metrics/method_call.rb
@@ -2,15 +2,45 @@ module Gitlab
   module Metrics
     # Class for tracking timing information about method calls
     class MethodCall
-      attr_reader :real_time, :cpu_time, :call_count
+      MUTEX = Mutex.new
+      BASE_LABELS = { module: nil, method: nil }.freeze
+      attr_reader :real_time, :cpu_time, :call_count, :labels
+
+      def self.call_real_duration_histogram
+        return @call_real_duration_histogram if @call_real_duration_histogram
+
+        MUTEX.synchronize do
+          @call_real_duration_histogram ||= Gitlab::Metrics.histogram(
+            :gitlab_method_call_real_duration_seconds,
+            'Method calls real duration',
+            Transaction::BASE_LABELS.merge(BASE_LABELS),
+            [0.1, 0.2, 0.5, 1, 2, 5, 10]
+          )
+        end
+      end
+
+      def self.call_cpu_duration_histogram
+        return @call_cpu_duration_histogram if @call_cpu_duration_histogram
+
+        MUTEX.synchronize do
+          @call_duration_histogram ||= Gitlab::Metrics.histogram(
+            :gitlab_method_call_cpu_duration_seconds,
+            'Method calls cpu duration',
+            Transaction::BASE_LABELS.merge(BASE_LABELS),
+            [0.1, 0.2, 0.5, 1, 2, 5, 10]
+          )
+        end
+      end
 
       # name - The full name of the method (including namespace) such as
       #        `User#sign_in`.
       #
-      # series - The series to use for storing the data.
-      def initialize(name, series)
+      def initialize(name, module_name, method_name, transaction)
+        @module_name = module_name
+        @method_name = method_name
+        @transaction = transaction
         @name = name
-        @series = series
+        @labels = { module: @module_name, method: @method_name }
         @real_time = 0
         @cpu_time = 0
         @call_count = 0
@@ -22,21 +52,27 @@ module Gitlab
         start_cpu = System.cpu_time
         retval = yield
 
-        @real_time += System.monotonic_time - start_real
-        @cpu_time += System.cpu_time - start_cpu
+        real_time = System.monotonic_time - start_real
+        cpu_time = System.cpu_time - start_cpu
+
+        @real_time += real_time
+        @cpu_time += cpu_time
         @call_count += 1
 
+        self.class.call_real_duration_histogram.observe(@transaction.labels.merge(labels), real_time / 1000.0)
+        self.class.call_cpu_duration_histogram.observe(@transaction.labels.merge(labels), cpu_time / 1000.0)
+
         retval
       end
 
       # Returns a Metric instance of the current method call.
       def to_metric
         Metric.new(
-          @series,
+          Instrumentation.series,
           {
-            duration:     real_time,
+            duration: real_time,
             cpu_duration: cpu_time,
-            call_count:   call_count
+            call_count: call_count
           },
           method: @name
         )
diff --git a/lib/gitlab/metrics/prometheus.rb b/lib/gitlab/metrics/prometheus.rb
index b5f9dafccab..75461b45005 100644
--- a/lib/gitlab/metrics/prometheus.rb
+++ b/lib/gitlab/metrics/prometheus.rb
@@ -5,6 +5,9 @@ module Gitlab
     module Prometheus
       include Gitlab::CurrentSettings
 
+      REGISTRY_MUTEX = Mutex.new
+      PROVIDER_MUTEX = Mutex.new
+
       def metrics_folder_present?
         multiprocess_files_dir = ::Prometheus::Client.configuration.multiprocess_files_dir
 
@@ -21,23 +24,38 @@ module Gitlab
       end
 
       def registry
-        @registry ||= ::Prometheus::Client.registry
+        return @registry if @registry
+
+        REGISTRY_MUTEX.synchronize do
+          @registry ||= ::Prometheus::Client.registry
+        end
       end
 
       def counter(name, docstring, base_labels = {})
-        provide_metric(name) || registry.counter(name, docstring, base_labels)
+        safe_provide_metric(:counter, name, docstring, base_labels)
       end
 
       def summary(name, docstring, base_labels = {})
-        provide_metric(name) || registry.summary(name, docstring, base_labels)
+        safe_provide_metric(:summary, name, docstring, base_labels)
       end
 
       def gauge(name, docstring, base_labels = {}, multiprocess_mode = :all)
-        provide_metric(name) || registry.gauge(name, docstring, base_labels, multiprocess_mode)
+        safe_provide_metric(:gauge, name, docstring, base_labels, multiprocess_mode)
       end
 
       def histogram(name, docstring, base_labels = {}, buckets = ::Prometheus::Client::Histogram::DEFAULT_BUCKETS)
-        provide_metric(name) || registry.histogram(name, docstring, base_labels, buckets)
+        safe_provide_metric(:histogram, name, docstring, base_labels, buckets)
+      end
+
+      private
+
+      def safe_provide_metric(method, name, *args)
+        metric = provide_metric(name)
+        return metric if metric
+
+        PROVIDER_MUTEX.synchronize do
+          provide_metric(name) || registry.method(method).call(name, *args)
+        end
       end
 
       def provide_metric(name)
@@ -48,8 +66,6 @@ module Gitlab
         end
       end
 
-      private
-
       def prometheus_metrics_enabled_unmemoized
         metrics_folder_present? && current_application_settings[:prometheus_metrics_enabled] || false
       end
diff --git a/lib/gitlab/metrics/rack_middleware.rb b/lib/gitlab/metrics/rack_middleware.rb
index adc0db1a874..2d45765df3f 100644
--- a/lib/gitlab/metrics/rack_middleware.rb
+++ b/lib/gitlab/metrics/rack_middleware.rb
@@ -2,20 +2,6 @@ module Gitlab
   module Metrics
     # Rack middleware for tracking Rails and Grape requests.
     class RackMiddleware
-      CONTROLLER_KEY = 'action_controller.instance'.freeze
-      ENDPOINT_KEY   = 'api.endpoint'.freeze
-      CONTENT_TYPES = {
-        'text/html' => :html,
-        'text/plain' => :txt,
-        'application/json' => :json,
-        'text/js' => :js,
-        'application/atom+xml' => :atom,
-        'image/png' => :png,
-        'image/jpeg' => :jpeg,
-        'image/gif' => :gif,
-        'image/svg+xml' => :svg
-      }.freeze
-
       def initialize(app)
         @app = app
       end
@@ -35,12 +21,6 @@ module Gitlab
         # Even in the event of an error we want to submit any metrics we
         # might've gathered up to this point.
         ensure
-          if env[CONTROLLER_KEY]
-            tag_controller(trans, env)
-          elsif env[ENDPOINT_KEY]
-            tag_endpoint(trans, env)
-          end
-
           trans.finish
         end
 
@@ -48,60 +28,19 @@ module Gitlab
       end
 
       def transaction_from_env(env)
-        trans = Transaction.new
+        trans = WebTransaction.new(env)
 
-        trans.set(:request_uri, filtered_path(env))
-        trans.set(:request_method, env['REQUEST_METHOD'])
+        trans.set(:request_uri, filtered_path(env), false)
+        trans.set(:request_method, env['REQUEST_METHOD'], false)
 
         trans
       end
 
-      def tag_controller(trans, env)
-        controller = env[CONTROLLER_KEY]
-        action = "#{controller.class.name}##{controller.action_name}"
-        suffix = CONTENT_TYPES[controller.content_type]
-
-        if suffix && suffix != :html
-          action += ".#{suffix}"
-        end
-
-        trans.action = action
-      end
-
-      def tag_endpoint(trans, env)
-        endpoint = env[ENDPOINT_KEY]
-
-        begin
-          route = endpoint.route
-        rescue
-          # endpoint.route is calling env[Grape::Env::GRAPE_ROUTING_ARGS][:route_info]
-          # but env[Grape::Env::GRAPE_ROUTING_ARGS] is nil in the case of a 405 response
-          # so we're rescuing exceptions and bailing out
-        end
-
-        if route
-          path = endpoint_paths_cache[route.request_method][route.path]
-          trans.action = "Grape##{route.request_method} #{path}"
-        end
-      end
-
       private
 
       def filtered_path(env)
         ActionDispatch::Request.new(env).filtered_path.presence || env['REQUEST_URI']
       end
-
-      def endpoint_paths_cache
-        @endpoint_paths_cache ||= Hash.new do |hash, http_method|
-          hash[http_method] = Hash.new do |inner_hash, raw_path|
-            inner_hash[raw_path] = endpoint_instrumentable_path(raw_path)
-          end
-        end
-      end
-
-      def endpoint_instrumentable_path(raw_path)
-        raw_path.sub('(.:format)', '').sub('/:version', '')
-      end
     end
   end
 end
diff --git a/lib/gitlab/metrics/samplers/base_sampler.rb b/lib/gitlab/metrics/samplers/base_sampler.rb
new file mode 100644
index 00000000000..37f90c4673d
--- /dev/null
+++ b/lib/gitlab/metrics/samplers/base_sampler.rb
@@ -0,0 +1,64 @@
+require 'logger'
+
+module Gitlab
+  module Metrics
+    module Samplers
+      class BaseSampler < Daemon
+        # interval - The sampling interval in seconds.
+        def initialize(interval)
+          interval_half = interval.to_f / 2
+
+          @interval = interval
+          @interval_steps = (-interval_half..interval_half).step(0.1).to_a
+
+          super()
+        end
+
+        def safe_sample
+          sample
+        rescue => e
+          Rails.logger.warn("#{self.class}: #{e}, stopping")
+          stop
+        end
+
+        def sample
+          raise NotImplementedError
+        end
+
+        # Returns the sleep interval with a random adjustment.
+        #
+        # The random adjustment is put in place to ensure we:
+        #
+        # 1. Don't generate samples at the exact same interval every time (thus
+        #    potentially missing anything that happens in between samples).
+        # 2. Don't sample data at the same interval two times in a row.
+        def sleep_interval
+          while step = @interval_steps.sample
+            if step != @last_step
+              @last_step = step
+
+              return @interval + @last_step
+            end
+          end
+        end
+
+        private
+
+        attr_reader :running
+
+        def start_working
+          @running = true
+          sleep(sleep_interval)
+          while running
+            safe_sample
+            sleep(sleep_interval)
+          end
+        end
+
+        def stop_working
+          @running = false
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/metrics/samplers/influx_sampler.rb b/lib/gitlab/metrics/samplers/influx_sampler.rb
new file mode 100644
index 00000000000..f4f9b5ca792
--- /dev/null
+++ b/lib/gitlab/metrics/samplers/influx_sampler.rb
@@ -0,0 +1,103 @@
+module Gitlab
+  module Metrics
+    module Samplers
+      # Class that sends certain metrics to InfluxDB at a specific interval.
+      #
+      # This class is used to gather statistics that can't be directly associated
+      # with a transaction such as system memory usage, garbage collection
+      # statistics, etc.
+      class InfluxSampler < BaseSampler
+        # interval - The sampling interval in seconds.
+        def initialize(interval = Metrics.settings[:sample_interval])
+          super(interval)
+          @last_step = nil
+
+          @metrics = []
+
+          @last_minor_gc = Delta.new(GC.stat[:minor_gc_count])
+          @last_major_gc = Delta.new(GC.stat[:major_gc_count])
+
+          if Gitlab::Metrics.mri?
+            require 'allocations'
+
+            Allocations.start
+          end
+        end
+
+        def sample
+          sample_memory_usage
+          sample_file_descriptors
+          sample_objects
+          sample_gc
+
+          flush
+        ensure
+          GC::Profiler.clear
+          @metrics.clear
+        end
+
+        def flush
+          Metrics.submit_metrics(@metrics.map(&:to_hash))
+        end
+
+        def sample_memory_usage
+          add_metric('memory_usage', value: System.memory_usage)
+        end
+
+        def sample_file_descriptors
+          add_metric('file_descriptors', value: System.file_descriptor_count)
+        end
+
+        if Metrics.mri?
+          def sample_objects
+            sample = Allocations.to_hash
+            counts = sample.each_with_object({}) do |(klass, count), hash|
+              name = klass.name
+
+              next unless name
+
+              hash[name] = count
+            end
+
+            # Symbols aren't allocated so we'll need to add those manually.
+            counts['Symbol'] = Symbol.all_symbols.length
+
+            counts.each do |name, count|
+              add_metric('object_counts', { count: count }, type: name)
+            end
+          end
+        else
+          def sample_objects
+          end
+        end
+
+        def sample_gc
+          time = GC::Profiler.total_time * 1000.0
+          stats = GC.stat.merge(total_time: time)
+
+          # We want the difference of GC runs compared to the last sample, not the
+          # total amount since the process started.
+          stats[:minor_gc_count] =
+            @last_minor_gc.compared_with(stats[:minor_gc_count])
+
+          stats[:major_gc_count] =
+            @last_major_gc.compared_with(stats[:major_gc_count])
+
+          stats[:count] = stats[:minor_gc_count] + stats[:major_gc_count]
+
+          add_metric('gc_statistics', stats)
+        end
+
+        def add_metric(series, values, tags = {})
+          prefix = sidekiq? ? 'sidekiq_' : 'rails_'
+
+          @metrics << Metric.new("#{prefix}#{series}", values, tags)
+        end
+
+        def sidekiq?
+          Sidekiq.server?
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/metrics/samplers/ruby_sampler.rb b/lib/gitlab/metrics/samplers/ruby_sampler.rb
new file mode 100644
index 00000000000..8b5a60e6b8b
--- /dev/null
+++ b/lib/gitlab/metrics/samplers/ruby_sampler.rb
@@ -0,0 +1,110 @@
+require 'prometheus/client/support/unicorn'
+
+module Gitlab
+  module Metrics
+    module Samplers
+      class RubySampler < BaseSampler
+        def metrics
+          @metrics ||= init_metrics
+        end
+
+        def with_prefix(prefix, name)
+          "ruby_#{prefix}_#{name}".to_sym
+        end
+
+        def to_doc_string(name)
+          name.to_s.humanize
+        end
+
+        def labels
+          {}
+        end
+
+        def initialize(interval)
+          super(interval)
+
+          if Metrics.mri?
+            require 'allocations'
+
+            Allocations.start
+          end
+        end
+
+        def init_metrics
+          metrics = {}
+          metrics[:sampler_duration] = Metrics.histogram(with_prefix(:sampler_duration, :seconds), 'Sampler time', {})
+          metrics[:total_time] = Metrics.gauge(with_prefix(:gc, :time_total), 'Total GC time', labels, :livesum)
+          GC.stat.keys.each do |key|
+            metrics[key] = Metrics.gauge(with_prefix(:gc, key), to_doc_string(key), labels, :livesum)
+          end
+
+          metrics[:objects_total] = Metrics.gauge(with_prefix(:objects, :total), 'Objects total', labels.merge(class: nil), :livesum)
+          metrics[:memory_usage] = Metrics.gauge(with_prefix(:memory, :usage_total), 'Memory used total', labels, :livesum)
+          metrics[:file_descriptors] = Metrics.gauge(with_prefix(:file, :descriptors_total), 'File descriptors total', labels, :livesum)
+
+          metrics
+        end
+
+        def sample
+          start_time = System.monotonic_time
+          sample_gc
+          sample_objects
+
+          metrics[:memory_usage].set(labels, System.memory_usage)
+          metrics[:file_descriptors].set(labels, System.file_descriptor_count)
+
+          metrics[:sampler_duration].observe(labels.merge(worker_label), (System.monotonic_time - start_time) / 1000.0)
+        ensure
+          GC::Profiler.clear
+        end
+
+        private
+
+        def sample_gc
+          metrics[:total_time].set(labels, GC::Profiler.total_time * 1000)
+
+          GC.stat.each do |key, value|
+            metrics[key].set(labels, value)
+          end
+        end
+
+        def sample_objects
+          list_objects.each do |name, count|
+            metrics[:objects_total].set(labels.merge(class: name), count)
+          end
+        end
+
+        if Metrics.mri?
+          def list_objects
+            sample = Allocations.to_hash
+            counts = sample.each_with_object({}) do |(klass, count), hash|
+              name = klass.name
+
+              next unless name
+
+              hash[name] = count
+            end
+
+            # Symbols aren't allocated so we'll need to add those manually.
+            counts['Symbol'] = Symbol.all_symbols.length
+            counts
+          end
+        else
+          def list_objects
+          end
+        end
+
+        def worker_label
+          return {} unless defined?(Unicorn::Worker)
+          worker_no = ::Prometheus::Client::Support::Unicorn.worker_id
+
+          if worker_no
+            { unicorn: worker_no }
+          else
+            { unicorn: 'master' }
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/metrics/samplers/unicorn_sampler.rb b/lib/gitlab/metrics/samplers/unicorn_sampler.rb
new file mode 100644
index 00000000000..ea325651fbb
--- /dev/null
+++ b/lib/gitlab/metrics/samplers/unicorn_sampler.rb
@@ -0,0 +1,50 @@
+module Gitlab
+  module Metrics
+    module Samplers
+      class UnicornSampler < BaseSampler
+        def initialize(interval)
+          super(interval)
+        end
+
+        def unicorn_active_connections
+          @unicorn_active_connections ||= Gitlab::Metrics.gauge(:unicorn_active_connections, 'Unicorn active connections', {}, :max)
+        end
+
+        def unicorn_queued_connections
+          @unicorn_queued_connections ||= Gitlab::Metrics.gauge(:unicorn_queued_connections, 'Unicorn queued connections', {}, :max)
+        end
+
+        def enabled?
+          # Raindrops::Linux.tcp_listener_stats is only present on Linux
+          unicorn_with_listeners? && Raindrops::Linux.respond_to?(:tcp_listener_stats)
+        end
+
+        def sample
+          Raindrops::Linux.tcp_listener_stats(tcp_listeners).each do |addr, stats|
+            unicorn_active_connections.set({ type: 'tcp', address: addr }, stats.active)
+            unicorn_queued_connections.set({ type: 'tcp', address: addr }, stats.queued)
+          end
+
+          Raindrops::Linux.unix_listener_stats(unix_listeners).each do |addr, stats|
+            unicorn_active_connections.set({ type: 'unix', address: addr }, stats.active)
+            unicorn_queued_connections.set({ type: 'unix', address: addr }, stats.queued)
+          end
+        end
+
+        private
+
+        def tcp_listeners
+          @tcp_listeners ||= Unicorn.listener_names.grep(%r{\A[^/]+:\d+\z})
+        end
+
+        def unix_listeners
+          @unix_listeners ||= Unicorn.listener_names - tcp_listeners
+        end
+
+        def unicorn_with_listeners?
+          defined?(Unicorn) && Unicorn.listener_names.any?
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/metrics/sidekiq_middleware.rb b/lib/gitlab/metrics/sidekiq_middleware.rb
index b983a40611f..df4bdf16847 100644
--- a/lib/gitlab/metrics/sidekiq_middleware.rb
+++ b/lib/gitlab/metrics/sidekiq_middleware.rb
@@ -5,14 +5,12 @@ module Gitlab
     # This middleware is intended to be used as a server-side middleware.
     class SidekiqMiddleware
       def call(worker, message, queue)
-        trans = Transaction.new("#{worker.class.name}#perform")
+        trans = BackgroundTransaction.new(worker.class)
 
         begin
           # Old gitlad-shell messages don't provide enqueued_at/created_at attributes
           trans.set(:sidekiq_queue_duration, Time.now.to_f - (message['enqueued_at'] || message['created_at'] || 0))
           trans.run { yield }
-
-          worker.metrics_tags.each { |tag, value| trans.add_tag(tag, value) } if worker.respond_to?(:metrics_tags)
         rescue Exception => error # rubocop: disable Lint/RescueException
           trans.add_event(:sidekiq_exception)
 
diff --git a/lib/gitlab/metrics/subscribers/action_view.rb b/lib/gitlab/metrics/subscribers/action_view.rb
index d435a33e9c7..3da474fc1ec 100644
--- a/lib/gitlab/metrics/subscribers/action_view.rb
+++ b/lib/gitlab/metrics/subscribers/action_view.rb
@@ -15,10 +15,24 @@ module Gitlab
 
         private
 
+        def metric_view_rendering_duration_seconds
+          @metric_view_rendering_duration_seconds ||= Gitlab::Metrics.histogram(
+            :gitlab_view_rendering_duration_seconds,
+            'View rendering time',
+            Transaction::BASE_LABELS.merge({ path: nil }),
+            [0.001, 0.002, 0.005, 0.01, 0.02, 0.05, 0.1, 0.500, 2.0, 10.0]
+          )
+        end
+
         def track(event)
           values = values_for(event)
           tags   = tags_for(event)
 
+          metric_view_rendering_duration_seconds.observe(
+            current_transaction.labels.merge(tags),
+            event.duration
+          )
+
           current_transaction.increment(:view_duration, event.duration)
           current_transaction.add_metric(SERIES, values, tags)
         end
diff --git a/lib/gitlab/metrics/subscribers/active_record.rb b/lib/gitlab/metrics/subscribers/active_record.rb
index 96cad941d5c..064299f40c8 100644
--- a/lib/gitlab/metrics/subscribers/active_record.rb
+++ b/lib/gitlab/metrics/subscribers/active_record.rb
@@ -7,9 +7,10 @@ module Gitlab
 
         def sql(event)
           return unless current_transaction
+          metric_sql_duration_seconds.observe(current_transaction.labels, event.duration / 1000.0)
 
-          current_transaction.increment(:sql_duration, event.duration)
-          current_transaction.increment(:sql_count, 1)
+          current_transaction.increment(:sql_duration, event.duration, false)
+          current_transaction.increment(:sql_count, 1, false)
         end
 
         private
@@ -17,6 +18,15 @@ module Gitlab
         def current_transaction
           Transaction.current
         end
+
+        def metric_sql_duration_seconds
+          @metric_sql_duration_seconds ||= Gitlab::Metrics.histogram(
+            :gitlab_sql_duration_seconds,
+            'SQL time',
+            Transaction::BASE_LABELS,
+            [0.001, 0.002, 0.005, 0.01, 0.02, 0.05, 0.1, 0.500, 2.0, 10.0]
+          )
+        end
       end
     end
   end
diff --git a/lib/gitlab/metrics/subscribers/rails_cache.rb b/lib/gitlab/metrics/subscribers/rails_cache.rb
index aaed2184f44..efd3c9daf79 100644
--- a/lib/gitlab/metrics/subscribers/rails_cache.rb
+++ b/lib/gitlab/metrics/subscribers/rails_cache.rb
@@ -7,28 +7,29 @@ module Gitlab
         attach_to :active_support
 
         def cache_read(event)
-          increment(:cache_read, event.duration)
+          observe(:read, event.duration)
 
           return unless current_transaction
           return if event.payload[:super_operation] == :fetch
 
           if event.payload[:hit]
-            current_transaction.increment(:cache_read_hit_count, 1)
+            current_transaction.increment(:cache_read_hit_count, 1, false)
           else
-            current_transaction.increment(:cache_read_miss_count, 1)
+            metric_cache_misses_total.increment(current_transaction.labels)
+            current_transaction.increment(:cache_read_miss_count, 1, false)
           end
         end
 
         def cache_write(event)
-          increment(:cache_write, event.duration)
+          observe(:write, event.duration)
         end
 
         def cache_delete(event)
-          increment(:cache_delete, event.duration)
+          observe(:delete, event.duration)
         end
 
         def cache_exist?(event)
-          increment(:cache_exists, event.duration)
+          observe(:exists, event.duration)
         end
 
         def cache_fetch_hit(event)
@@ -40,16 +41,18 @@ module Gitlab
         def cache_generate(event)
           return unless current_transaction
 
+          metric_cache_misses_total.increment(current_transaction.labels)
           current_transaction.increment(:cache_read_miss_count, 1)
         end
 
-        def increment(key, duration)
+        def observe(key, duration)
           return unless current_transaction
 
-          current_transaction.increment(:cache_duration, duration)
-          current_transaction.increment(:cache_count, 1)
-          current_transaction.increment("#{key}_duration".to_sym, duration)
-          current_transaction.increment("#{key}_count".to_sym, 1)
+          metric_cache_operation_duration_seconds.observe(current_transaction.labels.merge({ operation: key }), duration / 1000.0)
+          current_transaction.increment(:cache_duration, duration, false)
+          current_transaction.increment(:cache_count, 1, false)
+          current_transaction.increment("cache_#{key}_duration".to_sym, duration, false)
+          current_transaction.increment("cache_#{key}_count".to_sym, 1, false)
         end
 
         private
@@ -57,6 +60,23 @@ module Gitlab
         def current_transaction
           Transaction.current
         end
+
+        def metric_cache_operation_duration_seconds
+          @metric_cache_operation_duration_seconds ||= Gitlab::Metrics.histogram(
+            :gitlab_cache_operation_duration_seconds,
+            'Cache access time',
+            Transaction::BASE_LABELS.merge({ action: nil }),
+            [0.001, 0.002, 0.005, 0.01, 0.02, 0.05, 0.1, 0.500, 2.0, 10.0]
+          )
+        end
+
+        def metric_cache_misses_total
+          @metric_cache_misses_total ||= Gitlab::Metrics.counter(
+            :gitlab_cache_misses_total,
+            'Cache read miss',
+            Transaction::BASE_LABELS
+          )
+        end
       end
     end
   end
diff --git a/lib/gitlab/metrics/transaction.rb b/lib/gitlab/metrics/transaction.rb
index 4f9fb1c7853..ee3afc5ffdb 100644
--- a/lib/gitlab/metrics/transaction.rb
+++ b/lib/gitlab/metrics/transaction.rb
@@ -2,34 +2,33 @@ module Gitlab
   module Metrics
     # Class for storing metrics information of a single transaction.
     class Transaction
+      # base labels shared among all transactions
+      BASE_LABELS = { controller: nil, action: nil }.freeze
+
       THREAD_KEY = :_gitlab_metrics_transaction
+      METRICS_MUTEX = Mutex.new
 
       # The series to store events (e.g. Git pushes) in.
       EVENT_SERIES = 'events'.freeze
 
       attr_reader :tags, :values, :method, :metrics
 
-      attr_accessor :action
-
       def self.current
         Thread.current[THREAD_KEY]
       end
 
-      # action - A String describing the action performed, usually the class
-      #          plus method name.
-      def initialize(action = nil)
+      def initialize
         @metrics = []
         @methods = {}
 
-        @started_at  = nil
+        @started_at = nil
         @finished_at = nil
 
         @values = Hash.new(0)
-        @tags   = {}
-        @action = action
+        @tags = {}
 
         @memory_before = 0
-        @memory_after  = 0
+        @memory_after = 0
       end
 
       def duration
@@ -44,12 +43,15 @@ module Gitlab
         Thread.current[THREAD_KEY] = self
 
         @memory_before = System.memory_usage
-        @started_at    = System.monotonic_time
+        @started_at = System.monotonic_time
 
         yield
       ensure
         @memory_after = System.memory_usage
-        @finished_at  = System.monotonic_time
+        @finished_at = System.monotonic_time
+
+        self.class.metric_transaction_duration_seconds.observe(labels, duration * 1000)
+        self.class.metric_transaction_allocated_memory_bytes.observe(labels, allocated_memory * 1024.0)
 
         Thread.current[THREAD_KEY] = nil
       end
@@ -66,33 +68,29 @@ module Gitlab
       # event_name - The name of the event (e.g. "git_push").
       # tags - A set of tags to attach to the event.
       def add_event(event_name, tags = {})
-        @metrics << Metric.new(EVENT_SERIES,
-                               { count: 1 },
-                               { event: event_name }.merge(tags),
-                               :event)
+        self.class.metric_event_counter(event_name, tags).increment(tags.merge(labels))
+        @metrics << Metric.new(EVENT_SERIES, { count: 1 }, tags.merge(event: event_name), :event)
       end
 
       # Returns a MethodCall object for the given name.
-      def method_call_for(name)
+      def method_call_for(name, module_name, method_name)
         unless method = @methods[name]
-          @methods[name] = method = MethodCall.new(name, Instrumentation.series)
+          @methods[name] = method = MethodCall.new(name, module_name, method_name, self)
         end
 
         method
       end
 
-      def increment(name, value)
+      def increment(name, value, use_prometheus = true)
+        self.class.metric_transaction_counter(name).increment(labels, value) if use_prometheus
         @values[name] += value
       end
 
-      def set(name, value)
+      def set(name, value, use_prometheus = true)
+        self.class.metric_transaction_gauge(name).set(labels, value) if use_prometheus
         @values[name] = value
       end
 
-      def add_tag(key, value)
-        @tags[key] = value
-      end
-
       def finish
         track_self
         submit
@@ -117,14 +115,83 @@ module Gitlab
 
         submit_hashes = submit.map do |metric|
           hash = metric.to_hash
-
-          hash[:tags][:action] ||= @action if @action && !metric.event?
+          hash[:tags][:action] ||= action if action && !metric.event?
 
           hash
         end
 
         Metrics.submit_metrics(submit_hashes)
       end
+
+      def labels
+        BASE_LABELS
+      end
+
+      # returns string describing the action performed, usually the class plus method name.
+      def action
+        "#{labels[:controller]}##{labels[:action]}" if labels && !labels.empty?
+      end
+
+      def self.metric_transaction_duration_seconds
+        return @metric_transaction_duration_seconds if @metric_transaction_duration_seconds
+
+        METRICS_MUTEX.synchronize do
+          @metric_transaction_duration_seconds ||= Gitlab::Metrics.histogram(
+            :gitlab_transaction_duration_seconds,
+            'Transaction duration',
+            BASE_LABELS,
+            [0.001, 0.002, 0.005, 0.01, 0.02, 0.05, 0.1, 0.500, 2.0, 10.0]
+          )
+        end
+      end
+
+      def self.metric_transaction_allocated_memory_bytes
+        return @metric_transaction_allocated_memory_bytes if @metric_transaction_allocated_memory_bytes
+
+        METRICS_MUTEX.synchronize do
+          @metric_transaction_allocated_memory_bytes ||= Gitlab::Metrics.histogram(
+            :gitlab_transaction_allocated_memory_bytes,
+            'Transaction allocated memory bytes',
+            BASE_LABELS,
+            [1000, 10000, 20000, 500000, 1000000, 2000000, 5000000, 10000000, 20000000, 100000000]
+          )
+        end
+      end
+
+      def self.metric_event_counter(event_name, tags)
+        return @metric_event_counters[event_name] if @metric_event_counters&.has_key?(event_name)
+
+        METRICS_MUTEX.synchronize do
+          @metric_event_counters ||= {}
+          @metric_event_counters[event_name] ||= Gitlab::Metrics.counter(
+            "gitlab_transaction_event_#{event_name}_total".to_sym,
+            "Transaction event #{event_name} counter",
+            tags.merge(BASE_LABELS)
+          )
+        end
+      end
+
+      def self.metric_transaction_counter(name)
+        return @metric_transaction_counters[name] if @metric_transaction_counters&.has_key?(name)
+
+        METRICS_MUTEX.synchronize do
+          @metric_transaction_counters ||= {}
+          @metric_transaction_counters[name] ||= Gitlab::Metrics.counter(
+            "gitlab_transaction_#{name}_total".to_sym, "Transaction #{name} counter", BASE_LABELS
+          )
+        end
+      end
+
+      def self.metric_transaction_gauge(name)
+        return @metric_transaction_gauges[name] if @metric_transaction_gauges&.has_key?(name)
+
+        METRICS_MUTEX.synchronize do
+          @metric_transaction_gauges ||= {}
+          @metric_transaction_gauges[name] ||= Gitlab::Metrics.gauge(
+            "gitlab_transaction_#{name}".to_sym, "Transaction gauge #{name}", BASE_LABELS, :livesum
+          )
+        end
+      end
     end
   end
 end
diff --git a/lib/gitlab/metrics/unicorn_sampler.rb b/lib/gitlab/metrics/unicorn_sampler.rb
deleted file mode 100644
index f6987252039..00000000000
--- a/lib/gitlab/metrics/unicorn_sampler.rb
+++ /dev/null
@@ -1,48 +0,0 @@
-module Gitlab
-  module Metrics
-    class UnicornSampler < BaseSampler
-      def initialize(interval)
-        super(interval)
-      end
-
-      def unicorn_active_connections
-        @unicorn_active_connections ||= Gitlab::Metrics.gauge(:unicorn_active_connections, 'Unicorn active connections', {}, :max)
-      end
-
-      def unicorn_queued_connections
-        @unicorn_queued_connections ||= Gitlab::Metrics.gauge(:unicorn_queued_connections, 'Unicorn queued connections', {}, :max)
-      end
-
-      def enabled?
-        # Raindrops::Linux.tcp_listener_stats is only present on Linux
-        unicorn_with_listeners? && Raindrops::Linux.respond_to?(:tcp_listener_stats)
-      end
-
-      def sample
-        Raindrops::Linux.tcp_listener_stats(tcp_listeners).each do |addr, stats|
-          unicorn_active_connections.set({ type: 'tcp', address: addr }, stats.active)
-          unicorn_queued_connections.set({ type: 'tcp', address: addr }, stats.queued)
-        end
-
-        Raindrops::Linux.unix_listener_stats(unix_listeners).each do |addr, stats|
-          unicorn_active_connections.set({ type: 'unix', address: addr }, stats.active)
-          unicorn_queued_connections.set({ type: 'unix', address: addr }, stats.queued)
-        end
-      end
-
-      private
-
-      def tcp_listeners
-        @tcp_listeners ||= Unicorn.listener_names.grep(%r{\A[^/]+:\d+\z})
-      end
-
-      def unix_listeners
-        @unix_listeners ||= Unicorn.listener_names - tcp_listeners
-      end
-
-      def unicorn_with_listeners?
-        defined?(Unicorn) && Unicorn.listener_names.any?
-      end
-    end
-  end
-end
diff --git a/lib/gitlab/metrics/web_transaction.rb b/lib/gitlab/metrics/web_transaction.rb
new file mode 100644
index 00000000000..89ff02a96d6
--- /dev/null
+++ b/lib/gitlab/metrics/web_transaction.rb
@@ -0,0 +1,82 @@
+module Gitlab
+  module Metrics
+    class WebTransaction < Transaction
+      CONTROLLER_KEY = 'action_controller.instance'.freeze
+      ENDPOINT_KEY = 'api.endpoint'.freeze
+
+      CONTENT_TYPES = {
+        'text/html' => :html,
+        'text/plain' => :txt,
+        'application/json' => :json,
+        'text/js' => :js,
+        'application/atom+xml' => :atom,
+        'image/png' => :png,
+        'image/jpeg' => :jpeg,
+        'image/gif' => :gif,
+        'image/svg+xml' => :svg
+      }.freeze
+
+      def initialize(env)
+        super()
+        @env = env
+      end
+
+      def labels
+        return @labels if @labels
+
+        # memoize transaction labels only source env variables were present
+        @labels = if @env[CONTROLLER_KEY]
+                    labels_from_controller || {}
+                  elsif @env[ENDPOINT_KEY]
+                    labels_from_endpoint || {}
+                  end
+
+        @labels || {}
+      end
+
+      private
+
+      def labels_from_controller
+        controller = @env[CONTROLLER_KEY]
+
+        action = "#{controller.action_name}"
+        suffix = CONTENT_TYPES[controller.content_type]
+
+        if suffix && suffix != :html
+          action += ".#{suffix}"
+        end
+
+        { controller: controller.class.name, action: action }
+      end
+
+      def labels_from_endpoint
+        endpoint = @env[ENDPOINT_KEY]
+
+        begin
+          route = endpoint.route
+        rescue
+          # endpoint.route is calling env[Grape::Env::GRAPE_ROUTING_ARGS][:route_info]
+          # but env[Grape::Env::GRAPE_ROUTING_ARGS] is nil in the case of a 405 response
+          # so we're rescuing exceptions and bailing out
+        end
+
+        if route
+          path = endpoint_paths_cache[route.request_method][route.path]
+          { controller: 'Grape', action: "#{route.request_method} #{path}" }
+        end
+      end
+
+      def endpoint_paths_cache
+        @endpoint_paths_cache ||= Hash.new do |hash, http_method|
+          hash[http_method] = Hash.new do |inner_hash, raw_path|
+            inner_hash[raw_path] = endpoint_instrumentable_path(raw_path)
+          end
+        end
+      end
+
+      def endpoint_instrumentable_path(raw_path)
+        raw_path.sub('(.:format)', '').sub('/:version', '')
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/middleware/rails_queue_duration.rb b/lib/gitlab/middleware/rails_queue_duration.rb
index 63c3372da51..bc70b2459ef 100644
--- a/lib/gitlab/middleware/rails_queue_duration.rb
+++ b/lib/gitlab/middleware/rails_queue_duration.rb
@@ -14,11 +14,22 @@ module Gitlab
         proxy_start = env['HTTP_GITLAB_WORKHORSE_PROXY_START'].presence
         if trans && proxy_start
           # Time in milliseconds since gitlab-workhorse started the request
-          trans.set(:rails_queue_duration, Time.now.to_f * 1_000 - proxy_start.to_f / 1_000_000)
+          duration = Time.now.to_f * 1_000 - proxy_start.to_f / 1_000_000
+          trans.set(:rails_queue_duration, duration)
+          metric_rails_queue_duration_seconds.observe(trans.labels, duration / 1_000)
         end
 
         @app.call(env)
       end
+
+      private
+
+      def metric_rails_queue_duration_seconds
+        @metric_rails_queue_duration_seconds ||= Gitlab::Metrics.histogram(
+          :gitlab_rails_queue_duration_seconds,
+          Gitlab::Metrics::Transaction::BASE_LABELS
+        )
+      end
     end
   end
 end
diff --git a/lib/gitlab/middleware/read_only.rb b/lib/gitlab/middleware/read_only.rb
index 8853dfa3d2d..5e4932e4e57 100644
--- a/lib/gitlab/middleware/read_only.rb
+++ b/lib/gitlab/middleware/read_only.rb
@@ -66,11 +66,7 @@ module Gitlab
       end
 
       def whitelisted_routes
-        logout_route || grack_route || @whitelisted.any? { |path| request.path.include?(path) } || lfs_route || sidekiq_route
-      end
-
-      def logout_route
-        route_hash[:controller] == 'sessions' && route_hash[:action] == 'destroy'
+        grack_route || @whitelisted.any? { |path| request.path.include?(path) } || lfs_route || sidekiq_route
       end
 
       def sidekiq_route
diff --git a/lib/gitlab/o_auth/user.rb b/lib/gitlab/o_auth/user.rb
index 47c2a422387..b4b3b00c84d 100644
--- a/lib/gitlab/o_auth/user.rb
+++ b/lib/gitlab/o_auth/user.rb
@@ -179,7 +179,7 @@ module Gitlab
         valid_username = ::Namespace.clean_path(username)
 
         uniquify = Uniquify.new
-        valid_username = uniquify.string(valid_username) { |s| !DynamicPathValidator.valid_user_path?(s) }
+        valid_username = uniquify.string(valid_username) { |s| !UserPathValidator.valid_path?(s) }
 
         name = auth_hash.name
         name = valid_username if name.strip.empty?
diff --git a/lib/gitlab/path_regex.rb b/lib/gitlab/path_regex.rb
index cd8b2eba6c4..9a3817ff00a 100644
--- a/lib/gitlab/path_regex.rb
+++ b/lib/gitlab/path_regex.rb
@@ -113,22 +113,6 @@ module Gitlab
     # this would map to the activity-page of its parent.
     GROUP_ROUTES = %w[
       -
-      activity
-      analytics
-      audit_events
-      avatar
-      edit
-      group_members
-      hooks
-      issues
-      labels
-      ldap
-      ldap_group_links
-      merge_requests
-      milestones
-      notification_setting
-      pipeline_quota
-      projects
     ].freeze
 
     ILLEGAL_PROJECT_PATH_WORDS = PROJECT_WILDCARD_ROUTES
diff --git a/lib/gitlab/regex.rb b/lib/gitlab/regex.rb
index bd677ec4bf3..2c7b8af83f2 100644
--- a/lib/gitlab/regex.rb
+++ b/lib/gitlab/regex.rb
@@ -25,7 +25,7 @@ module Gitlab
     # See https://github.com/docker/distribution/blob/master/reference/regexp.go.
     #
     def container_repository_name_regex
-      @container_repository_regex ||= %r{\A[a-z0-9]+(?:[-._/][a-z0-9]+)*\Z}
+      @container_repository_regex ||= %r{\A[a-z0-9]+((?:[._/]|__|[-])[a-z0-9]+)*\Z}
     end
 
     ##
diff --git a/lib/gitlab/routing.rb b/lib/gitlab/routing.rb
index e57890f1143..910533076b0 100644
--- a/lib/gitlab/routing.rb
+++ b/lib/gitlab/routing.rb
@@ -40,5 +40,24 @@ module Gitlab
     def self.url_helpers
       @url_helpers ||= Gitlab::Application.routes.url_helpers
     end
+
+    def self.redirect_legacy_paths(router, *paths)
+      build_redirect_path = lambda do |request, _params, path|
+        # Only replace the last occurence of `path`.
+        #
+        # `request.fullpath` includes the querystring
+        path = request.path.sub(%r{/#{path}/*(?!.*#{path})}, "/-/#{path}/")
+        path << "?#{request.query_string}" if request.query_string.present?
+
+        path
+      end
+
+      paths.each do |path|
+        router.match "/#{path}(/*rest)",
+                     via: [:get, :post, :patch, :delete],
+                     to: router.redirect { |params, request| build_redirect_path.call(request, params, path) },
+                     as: "legacy_#{path}_redirect"
+      end
+    end
   end
 end
diff --git a/lib/gitlab/url_blocker.rb b/lib/gitlab/url_blocker.rb
index fee1a127fd7..13150ddab67 100644
--- a/lib/gitlab/url_blocker.rb
+++ b/lib/gitlab/url_blocker.rb
@@ -22,10 +22,12 @@ module Gitlab
           return true if blocked_user_or_hostname?(uri.user)
           return true if blocked_user_or_hostname?(uri.hostname)
 
-          server_ips = Resolv.getaddresses(uri.hostname)
+          server_ips = Addrinfo.getaddrinfo(uri.hostname, 80, nil, :STREAM).map(&:ip_address)
           return true if (blocked_ips & server_ips).any?
         rescue Addressable::URI::InvalidURIError
           return true
+        rescue SocketError
+          return false
         end
 
         false
diff --git a/lib/gitlab/usage_data.rb b/lib/gitlab/usage_data.rb
index 70a403652e7..112d4939582 100644
--- a/lib/gitlab/usage_data.rb
+++ b/lib/gitlab/usage_data.rb
@@ -48,9 +48,9 @@ module Gitlab
             deploy_keys: DeployKey.count,
             deployments: Deployment.count,
             environments: ::Environment.count,
-            gcp_clusters: ::Gcp::Cluster.count,
-            gcp_clusters_enabled: ::Gcp::Cluster.enabled.count,
-            gcp_clusters_disabled: ::Gcp::Cluster.disabled.count,
+            clusters: ::Clusters::Cluster.count,
+            clusters_enabled: ::Clusters::Cluster.enabled.count,
+            clusters_disabled: ::Clusters::Cluster.disabled.count,
             in_review_folder: ::Environment.in_review_folder.count,
             groups: Group.count,
             issues: Issue.count,
diff --git a/lib/gitlab/utils/strong_memoize.rb b/lib/gitlab/utils/strong_memoize.rb
new file mode 100644
index 00000000000..a2ac9285b56
--- /dev/null
+++ b/lib/gitlab/utils/strong_memoize.rb
@@ -0,0 +1,31 @@
+module Gitlab
+  module Utils
+    module StrongMemoize
+      # Instead of writing patterns like this:
+      #
+      #     def trigger_from_token
+      #       return @trigger if defined?(@trigger)
+      #
+      #       @trigger = Ci::Trigger.find_by_token(params[:token].to_s)
+      #     end
+      #
+      # We could write it like:
+      #
+      #     def trigger_from_token
+      #       strong_memoize(:trigger) do
+      #         Ci::Trigger.find_by_token(params[:token].to_s)
+      #       end
+      #     end
+      #
+      def strong_memoize(name)
+        ivar_name = "@#{name}"
+
+        if instance_variable_defined?(ivar_name)
+          instance_variable_get(ivar_name)
+        else
+          instance_variable_set(ivar_name, yield)
+        end
+      end
+    end
+  end
+end
diff --git a/lib/google_api/cloud_platform/client.rb b/lib/google_api/cloud_platform/client.rb
index a440a3e3562..9242cbe840c 100644
--- a/lib/google_api/cloud_platform/client.rb
+++ b/lib/google_api/cloud_platform/client.rb
@@ -3,7 +3,6 @@ require 'google/apis/container_v1'
 module GoogleApi
   module CloudPlatform
     class Client < GoogleApi::Auth
-      DEFAULT_MACHINE_TYPE = 'n1-standard-1'.freeze
       SCOPE = 'https://www.googleapis.com/auth/cloud-platform'.freeze
       LEAST_TOKEN_LIFE_TIME = 10.minutes
 
diff --git a/lib/tasks/gemojione.rake b/lib/tasks/gemojione.rake
index 87ca39b079b..c2d3a6b6950 100644
--- a/lib/tasks/gemojione.rake
+++ b/lib/tasks/gemojione.rake
@@ -1,5 +1,28 @@
 namespace :gemojione do
   desc 'Generates Emoji SHA256 digests'
+
+  task aliases: ['yarn:check', 'environment'] do
+    require 'json'
+
+    aliases = {}
+
+    index_file = File.join(Rails.root, 'fixtures', 'emojis', 'index.json')
+    index = JSON.parse(File.read(index_file))
+
+    index.each_pair do |key, data|
+      data['aliases'].each do |a|
+        a.tr!(':', '')
+
+        aliases[a] = key
+      end
+    end
+
+    out = File.join(Rails.root, 'fixtures', 'emojis', 'aliases.json')
+    File.open(out, 'w') do |handle|
+      handle.write(JSON.pretty_generate(aliases, indent: '   ', space: '', space_before: ''))
+    end
+  end
+
   task digests: ['yarn:check', 'environment'] do
     require 'digest/sha2'
     require 'json'
@@ -16,8 +39,13 @@ namespace :gemojione do
         fpath = File.join(dir, "#{emoji_hash['unicode']}.png")
         hash_digest = Digest::SHA256.file(fpath).hexdigest
 
+        category = emoji_hash['category']
+        if name == 'gay_pride_flag'
+          category = 'flags'
+        end
+
         entry = {
-          category: emoji_hash['category'],
+          category: category,
           moji: emoji_hash['moji'],
           description: emoji_hash['description'],
           unicodeVersion: Gitlab::Emoji.emoji_unicode_version(name),
@@ -29,7 +57,6 @@ namespace :gemojione do
     end
 
     out = File.join(Rails.root, 'fixtures', 'emojis', 'digests.json')
-
     File.open(out, 'w') do |handle|
       handle.write(JSON.pretty_generate(resultant_emoji_map))
     end
diff --git a/lib/tasks/gitlab/backup.rake b/lib/tasks/gitlab/backup.rake
index 1650263b98d..9dcf44fdc3e 100644
--- a/lib/tasks/gitlab/backup.rake
+++ b/lib/tasks/gitlab/backup.rake
@@ -33,24 +33,29 @@ namespace :gitlab do
       backup.unpack
 
       unless backup.skipped?('db')
-        unless ENV['force'] == 'yes'
-          warning = <<-MSG.strip_heredoc
-            Before restoring the database we recommend removing all existing
-            tables to avoid future upgrade problems. Be aware that if you have
-            custom tables in the GitLab database these tables and all data will be
-            removed.
-          MSG
-          puts warning.color(:red)
-          ask_to_continue
-          puts 'Removing all tables. Press `Ctrl-C` within 5 seconds to abort'.color(:yellow)
-          sleep(5)
+        begin
+          unless ENV['force'] == 'yes'
+            warning = <<-MSG.strip_heredoc
+              Before restoring the database, we will remove all existing
+              tables to avoid future upgrade problems. Be aware that if you have
+              custom tables in the GitLab database these tables and all data will be
+              removed.
+            MSG
+            puts warning.color(:red)
+            ask_to_continue
+            puts 'Removing all tables. Press `Ctrl-C` within 5 seconds to abort'.color(:yellow)
+            sleep(5)
+          end
+          # Drop all tables Load the schema to ensure we don't have any newer tables
+          # hanging out from a failed upgrade
+          $progress.puts 'Cleaning the database ... '.color(:blue)
+          Rake::Task['gitlab:db:drop_tables'].invoke
+          $progress.puts 'done'.color(:green)
+          Rake::Task['gitlab:backup:db:restore'].invoke
+        rescue Gitlab::TaskAbortedByUserError
+          puts "Quitting...".color(:red)
+          exit 1
         end
-        # Drop all tables Load the schema to ensure we don't have any newer tables
-        # hanging out from a failed upgrade
-        $progress.puts 'Cleaning the database ... '.color(:blue)
-        Rake::Task['gitlab:db:drop_tables'].invoke
-        $progress.puts 'done'.color(:green)
-        Rake::Task['gitlab:backup:db:restore'].invoke
       end
 
       Rake::Task['gitlab:backup:repo:restore'].invoke unless backup.skipped?('repositories')
diff --git a/lib/tasks/gitlab/import.rake b/lib/tasks/gitlab/import.rake
index d227a0c8bdb..adfcc3cda22 100644
--- a/lib/tasks/gitlab/import.rake
+++ b/lib/tasks/gitlab/import.rake
@@ -2,23 +2,21 @@ namespace :gitlab do
   namespace :import do
     # How to use:
     #
-    #  1. copy the bare repos under the repository storage paths (commonly the default path is /home/git/repositories)
-    #  2. run: bundle exec rake gitlab:import:repos RAILS_ENV=production
+    #  1. copy the bare repos to a specific path that contain the group or subgroups structure as folders
+    #  2. run: bundle exec rake gitlab:import:repos[/path/to/repos] RAILS_ENV=production
     #
     # Notes:
     #  * The project owner will set to the first administator of the system
     #  * Existing projects will be skipped
-    #
-    #
     desc "GitLab | Import bare repositories from repositories -> storages into GitLab project instance"
-    task repos: :environment do
-      if Project.current_application_settings.hashed_storage_enabled
-        puts 'Cannot import repositories when Hashed Storage is enabled'.color(:red)
+    task :repos, [:import_path] => :environment do |_t, args|
+      unless args.import_path
+        puts 'Please specify an import path that contains the repositories'.color(:red)
 
         exit 1
       end
 
-      Gitlab::BareRepositoryImporter.execute
+      Gitlab::BareRepositoryImport::Importer.execute(args.import_path)
     end
   end
 end
diff --git a/lib/tasks/import.rake b/lib/tasks/import.rake
index 7f86fd7b45e..aafbe52e5f8 100644
--- a/lib/tasks/import.rake
+++ b/lib/tasks/import.rake
@@ -7,14 +7,16 @@ class GithubImport
   end
 
   def initialize(token, gitlab_username, project_path, extras)
-    @options = { token: token, verbose: true }
+    @options = { token: token }
     @project_path = project_path
     @current_user = User.find_by_username(gitlab_username)
     @github_repo = extras.empty? ? nil : extras.first
   end
 
   def run!
-    @repo = GithubRepos.new(@options, @current_user, @github_repo).choose_one!
+    @repo = GithubRepos
+      .new(@options[:token], @current_user, @github_repo)
+      .choose_one!
 
     raise 'No repo found!' unless @repo
 
@@ -28,7 +30,7 @@ class GithubImport
   private
 
   def show_warning!
-    puts "This will import GitHub #{@repo['full_name'].bright} into GitLab #{@project_path.bright} as #{@current_user.name}"
+    puts "This will import GitHub #{@repo.full_name.bright} into GitLab #{@project_path.bright} as #{@current_user.name}"
     puts "Permission checks are ignored. Press any key to continue.".color(:red)
 
     STDIN.getch
@@ -42,7 +44,9 @@ class GithubImport
     import_success = false
 
     timings = Benchmark.measure do
-      import_success = Github::Import.new(@project, @options).execute
+      import_success = Gitlab::GithubImport::SequentialImporter
+        .new(@project, token: @options[:token])
+        .execute
     end
 
     if import_success
@@ -63,16 +67,16 @@ class GithubImport
         @current_user,
         name: name,
         path: name,
-        description: @repo['description'],
+        description: @repo.description,
         namespace_id: namespace.id,
         visibility_level: visibility_level,
-        skip_wiki: @repo['has_wiki']
+        skip_wiki: @repo.has_wiki
       ).execute
 
       project.update!(
         import_type: 'github',
-        import_source: @repo['full_name'],
-        import_url: @repo['clone_url'].sub('://', "://#{@options[:token]}@")
+        import_source: @repo.full_name,
+        import_url: @repo.clone_url.sub('://', "://#{@options[:token]}@")
       )
 
       project
@@ -91,13 +95,15 @@ class GithubImport
   end
 
   def visibility_level
-    @repo['private'] ? Gitlab::VisibilityLevel::PRIVATE : Gitlab::CurrentSettings.current_application_settings.default_project_visibility
+    @repo.private ? Gitlab::VisibilityLevel::PRIVATE : Gitlab::CurrentSettings.current_application_settings.default_project_visibility
   end
 end
 
 class GithubRepos
-  def initialize(options, current_user, github_repo)
-    @options = options
+  def initialize(token, current_user, github_repo)
+    @client = Gitlab::GithubImport::Client.new(token)
+    @client.octokit.auto_paginate = true
+
     @current_user = current_user
     @github_repo = github_repo
   end
@@ -106,17 +112,17 @@ class GithubRepos
     return found_github_repo if @github_repo
 
     repos.each do |repo|
-      print "ID: #{repo['id'].to_s.bright}".color(:green)
-      print "\tName: #{repo['full_name']}\n".color(:green)
+      print "ID: #{repo.id.to_s.bright}".color(:green)
+      print "\tName: #{repo.full_name}\n".color(:green)
     end
 
     print 'ID? '.bright
 
-    repos.find { |repo| repo['id'] == repo_id }
+    repos.find { |repo| repo.id == repo_id }
   end
 
   def found_github_repo
-    repos.find { |repo| repo['full_name'] == @github_repo }
+    repos.find { |repo| repo.full_name == @github_repo }
   end
 
   def repo_id
@@ -124,7 +130,7 @@ class GithubRepos
   end
 
   def repos
-    Github::Repositories.new(@options).fetch
+    @client.octokit.list_repositories
   end
 end
 
diff --git a/locale/gitlab.pot b/locale/gitlab.pot
index 08f6212d997..32afb7b06e4 100644
--- a/locale/gitlab.pot
+++ b/locale/gitlab.pot
@@ -399,7 +399,7 @@ msgstr ""
 msgid "Cluster"
 msgstr ""
 
-msgid "ClusterIntegration|A %{link_to_container_project} must have been created under this account"
+msgid "ClusterIntegration|This account must have permissions to create a cluster in the %{link_to_container_project} specified below"
 msgstr ""
 
 msgid "ClusterIntegration|Cluster details"
@@ -480,7 +480,7 @@ msgstr ""
 msgid "ClusterIntegration|Remove integration"
 msgstr ""
 
-msgid "ClusterIntegration|Removing cluster integration will remove the cluster configuration you have added to this project. It will not delete your project."
+msgid "ClusterIntegration|Removing cluster integration will remove the cluster configuration you have added to this project. It will not delete your cluster on Google Container Engine."
 msgstr ""
 
 msgid "ClusterIntegration|See and edit the details for your cluster"
diff --git a/package.json b/package.json
index e607981143d..cbcce40ffb9 100644
--- a/package.json
+++ b/package.json
@@ -74,6 +74,7 @@
     "webpack-stats-plugin": "^0.1.5"
   },
   "devDependencies": {
+    "@gitlab-org/gitlab-svgs": "^1.0.2",
     "babel-plugin-istanbul": "^4.0.0",
     "eslint": "^3.10.1",
     "eslint-config-airbnb-base": "^10.0.1",
@@ -82,7 +83,6 @@
     "eslint-plugin-import": "^2.2.0",
     "eslint-plugin-jasmine": "^2.1.0",
     "eslint-plugin-promise": "^3.5.0",
-    "gitlab-svgs": "https://gitlab.com/gitlab-org/gitlab-svgs.git",
     "istanbul": "^0.4.5",
     "jasmine-core": "^2.6.3",
     "jasmine-jquery": "^2.1.1",
diff --git a/qa/.gitignore b/qa/.gitignore
index 3fec32c8427..19ec17d0005 100644
--- a/qa/.gitignore
+++ b/qa/.gitignore
@@ -1 +1,2 @@
 tmp/
+.ruby-version
diff --git a/qa/bin/qa b/qa/bin/qa
index cecdeac14db..6a772e93cee 100755
--- a/qa/bin/qa
+++ b/qa/bin/qa
@@ -4,4 +4,4 @@ require_relative '../qa'
 
 QA::Scenario
   .const_get(ARGV.shift)
-  .perform(*ARGV)
+  .launch!(ARGV)
diff --git a/qa/qa.rb b/qa/qa.rb
index e8689a44f4d..dc1cd9abc6a 100644
--- a/qa/qa.rb
+++ b/qa/qa.rb
@@ -18,6 +18,7 @@ module QA
     ##
     # Support files
     #
+    autoload :Bootable, 'qa/scenario/bootable'
     autoload :Actable, 'qa/scenario/actable'
     autoload :Entrypoint, 'qa/scenario/entrypoint'
     autoload :Template, 'qa/scenario/template'
@@ -61,6 +62,7 @@ module QA
 
     module Main
       autoload :Entry, 'qa/page/main/entry'
+      autoload :Login, 'qa/page/main/login'
       autoload :Menu, 'qa/page/main/menu'
     end
 
diff --git a/qa/qa/git/repository.rb b/qa/qa/git/repository.rb
index b9e199000d6..59cd147e055 100644
--- a/qa/qa/git/repository.rb
+++ b/qa/qa/git/repository.rb
@@ -23,7 +23,7 @@ module QA
 
       def password=(pass)
         @password = pass
-        @uri.password = pass
+        @uri.password = CGI.escape(pass)
       end
 
       def use_default_credentials
diff --git a/qa/qa/page/base.rb b/qa/qa/page/base.rb
index d55326c5262..bdddfb877c5 100644
--- a/qa/qa/page/base.rb
+++ b/qa/qa/page/base.rb
@@ -5,7 +5,7 @@ module QA
       include Scenario::Actable
 
       def refresh
-        visit current_path
+        visit current_url
       end
     end
   end
diff --git a/qa/qa/page/main/entry.rb b/qa/qa/page/main/entry.rb
index a9810beeb29..ac939732b1d 100644
--- a/qa/qa/page/main/entry.rb
+++ b/qa/qa/page/main/entry.rb
@@ -2,9 +2,14 @@ module QA
   module Page
     module Main
       class Entry < Page::Base
-        def initialize
-          visit('/')
+        def visit_login_page
+          visit("#{Runtime::Scenario.gitlab_address}/users/sign_in")
+          wait_for_instance_to_be_ready
+        end
+
+        private
 
+        def wait_for_instance_to_be_ready
           # This resolves cold boot / background tasks problems
           #
           start = Time.now
@@ -14,18 +19,6 @@ module QA
             refresh
           end
         end
-
-        def sign_in_using_credentials
-          if page.has_content?('Change your password')
-            fill_in :user_password, with: Runtime::User.password
-            fill_in :user_password_confirmation, with: Runtime::User.password
-            click_button 'Change your password'
-          end
-
-          fill_in :user_login, with: Runtime::User.name
-          fill_in :user_password, with: Runtime::User.password
-          click_button 'Sign in'
-        end
       end
     end
   end
diff --git a/qa/qa/page/main/login.rb b/qa/qa/page/main/login.rb
new file mode 100644
index 00000000000..8b0111a78a2
--- /dev/null
+++ b/qa/qa/page/main/login.rb
@@ -0,0 +1,19 @@
+module QA
+  module Page
+    module Main
+      class Login < Page::Base
+        def sign_in_using_credentials
+          if page.has_content?('Change your password')
+            fill_in :user_password, with: Runtime::User.password
+            fill_in :user_password_confirmation, with: Runtime::User.password
+            click_button 'Change your password'
+          end
+
+          fill_in :user_login, with: Runtime::User.name
+          fill_in :user_password, with: Runtime::User.password
+          click_button 'Sign in'
+        end
+      end
+    end
+  end
+end
diff --git a/qa/qa/page/mattermost/login.rb b/qa/qa/page/mattermost/login.rb
index 2001dc5b230..42ab9c6f675 100644
--- a/qa/qa/page/mattermost/login.rb
+++ b/qa/qa/page/mattermost/login.rb
@@ -3,7 +3,7 @@ module QA
     module Mattermost
       class Login < Page::Base
         def initialize
-          visit(Runtime::Scenario.mattermost + '/login')
+          visit(Runtime::Scenario.mattermost_address + '/login')
         end
 
         def sign_in_using_oauth
diff --git a/qa/qa/page/mattermost/main.rb b/qa/qa/page/mattermost/main.rb
index e636d7676f4..4b8fc28e53f 100644
--- a/qa/qa/page/mattermost/main.rb
+++ b/qa/qa/page/mattermost/main.rb
@@ -3,7 +3,7 @@ module QA
     module Mattermost
       class Main < Page::Base
         def initialize
-          visit(Runtime::Scenario.mattermost)
+          visit(Runtime::Scenario.mattermost_address)
         end
       end
     end
diff --git a/qa/qa/runtime/scenario.rb b/qa/qa/runtime/scenario.rb
index 0c5e9787e17..7ef59046640 100644
--- a/qa/qa/runtime/scenario.rb
+++ b/qa/qa/runtime/scenario.rb
@@ -1,8 +1,28 @@
 module QA
   module Runtime
+    ##
+    # Singleton approach to global test scenario arguments.
+    #
     module Scenario
       extend self
-      attr_accessor :mattermost
+
+      attr_reader :attributes
+
+      def define(attribute, value)
+        (@attributes ||= {}).store(attribute.to_sym, value)
+
+        define_singleton_method(attribute) do
+          @attributes[attribute.to_sym].tap do |value|
+            if value.to_s.empty?
+              raise ArgumentError, "Empty `#{attribute}` attribute!"
+            end
+          end
+        end
+      end
+
+      def method_missing(name, *)
+        raise ArgumentError, "Scenario attribute `#{name}` not defined!"
+      end
     end
   end
 end
diff --git a/qa/qa/scenario/bootable.rb b/qa/qa/scenario/bootable.rb
new file mode 100644
index 00000000000..cf8996cd597
--- /dev/null
+++ b/qa/qa/scenario/bootable.rb
@@ -0,0 +1,45 @@
+require 'optparse'
+
+module QA
+  module Scenario
+    module Bootable
+      Option = Struct.new(:name, :arg, :desc)
+
+      def self.included(base)
+        base.extend(ClassMethods)
+      end
+
+      module ClassMethods
+        def launch!(argv)
+          return self.perform(*argv) unless has_attributes?
+
+          arguments = OptionParser.new do |parser|
+            options.to_a.each do |opt|
+              parser.on(opt.arg, opt.desc) do |value|
+                Runtime::Scenario.define(opt.name, value)
+              end
+            end
+          end
+
+          arguments.parse!(argv)
+
+          self.perform(**Runtime::Scenario.attributes)
+        end
+
+        private
+
+        def attribute(name, arg, desc)
+          options.push(Option.new(name, arg, desc))
+        end
+
+        def options
+          @options ||= []
+        end
+
+        def has_attributes?
+          options.any?
+        end
+      end
+    end
+  end
+end
diff --git a/qa/qa/scenario/entrypoint.rb b/qa/qa/scenario/entrypoint.rb
index 33cb2696f8f..ae099fd911e 100644
--- a/qa/qa/scenario/entrypoint.rb
+++ b/qa/qa/scenario/entrypoint.rb
@@ -5,18 +5,10 @@ module QA
     # including staging and on-premises installation.
     #
     class Entrypoint < Template
-      def self.tags(*tags)
-        @tags = tags
-      end
-
-      def self.get_tags
-        @tags
-      end
+      include Bootable
 
       def perform(address, *files)
-        Specs::Config.perform do |specs|
-          specs.address = address
-        end
+        Runtime::Scenario.define(:gitlab_address, address)
 
         ##
         # Perform before hooks, which are different for CE and EE
@@ -24,13 +16,19 @@ module QA
         Runtime::Release.perform_before_hooks
 
         Specs::Runner.perform do |specs|
-          specs.rspec(
-            tty: true,
-            tags: self.class.get_tags,
-            files: files.any? ? files : 'qa/specs/features'
-          )
+          specs.tty = true
+          specs.tags = self.class.get_tags
+          specs.files = files.any? ? files : 'qa/specs/features'
         end
       end
+
+      def self.tags(*tags)
+        @tags = tags
+      end
+
+      def self.get_tags
+        @tags
+      end
     end
   end
 end
diff --git a/qa/qa/scenario/test/integration/mattermost.rb b/qa/qa/scenario/test/integration/mattermost.rb
index 9a84e5c8fd8..7d0702afdb1 100644
--- a/qa/qa/scenario/test/integration/mattermost.rb
+++ b/qa/qa/scenario/test/integration/mattermost.rb
@@ -10,8 +10,9 @@ module QA
           tags :core, :mattermost
 
           def perform(address, mattermost, *files)
-            Runtime::Scenario.mattermost = mattermost
-            super(address, files)
+            Runtime::Scenario.define(:mattermost_address, mattermost)
+
+            super(address, *files)
           end
         end
       end
diff --git a/qa/qa/specs/config.rb b/qa/qa/specs/config.rb
index 79c681168cc..9f9fe9844d2 100644
--- a/qa/qa/specs/config.rb
+++ b/qa/qa/specs/config.rb
@@ -9,15 +9,7 @@ require 'selenium-webdriver'
 module QA
   module Specs
     class Config < Scenario::Template
-      attr_writer :address
-
-      def initialize
-        @address = ENV['GITLAB_URL']
-      end
-
       def perform
-        raise 'Please configure GitLab address!' unless @address
-
         configure_rspec!
         configure_capybara!
       end
@@ -56,10 +48,9 @@ module QA
         end
 
         Capybara.configure do |config|
-          config.app_host = @address
           config.default_driver = :chrome
           config.javascript_driver = :chrome
-          config.default_max_wait_time = 4
+          config.default_max_wait_time = 10
 
           # https://github.com/mattheworiordan/capybara-screenshot/issues/164
           config.save_path = 'tmp'
diff --git a/qa/qa/specs/features/login/standard_spec.rb b/qa/qa/specs/features/login/standard_spec.rb
index ba19ce17ee5..b155708c387 100644
--- a/qa/qa/specs/features/login/standard_spec.rb
+++ b/qa/qa/specs/features/login/standard_spec.rb
@@ -1,7 +1,8 @@
 module QA
   feature 'standard root login', :core do
     scenario 'user logs in using credentials' do
-      Page::Main::Entry.act { sign_in_using_credentials }
+      Page::Main::Entry.act { visit_login_page }
+      Page::Main::Login.act { sign_in_using_credentials }
 
       # TODO, since `Signed in successfully` message was removed
       # this is the only way to tell if user is signed in correctly.
diff --git a/qa/qa/specs/features/mattermost/group_create_spec.rb b/qa/qa/specs/features/mattermost/group_create_spec.rb
index c4afd83c8e4..853a9a6a4f4 100644
--- a/qa/qa/specs/features/mattermost/group_create_spec.rb
+++ b/qa/qa/specs/features/mattermost/group_create_spec.rb
@@ -1,7 +1,8 @@
 module QA
   feature 'create a new group', :mattermost do
     scenario 'creating a group with a mattermost team' do
-      Page::Main::Entry.act { sign_in_using_credentials }
+      Page::Main::Entry.act { visit_login_page }
+      Page::Main::Login.act { sign_in_using_credentials }
       Page::Main::Menu.act { go_to_groups }
 
       Page::Dashboard::Groups.perform do |page|
diff --git a/qa/qa/specs/features/mattermost/login_spec.rb b/qa/qa/specs/features/mattermost/login_spec.rb
index a89a6a3d1cf..92f91cb2725 100644
--- a/qa/qa/specs/features/mattermost/login_spec.rb
+++ b/qa/qa/specs/features/mattermost/login_spec.rb
@@ -1,7 +1,8 @@
 module QA
   feature 'logging in to Mattermost', :mattermost do
     scenario 'can use gitlab oauth' do
-      Page::Main::Entry.act { sign_in_using_credentials }
+      Page::Main::Entry.act { visit_login_page }
+      Page::Main::Login.act { sign_in_using_credentials }
       Page::Mattermost::Login.act { sign_in_using_oauth }
 
       Page::Mattermost::Main.perform do |page|
diff --git a/qa/qa/specs/features/project/create_spec.rb b/qa/qa/specs/features/project/create_spec.rb
index 27eb22f15a6..aba0c2b4c14 100644
--- a/qa/qa/specs/features/project/create_spec.rb
+++ b/qa/qa/specs/features/project/create_spec.rb
@@ -1,7 +1,8 @@
 module QA
   feature 'create a new project', :core do
     scenario 'user creates a new project' do
-      Page::Main::Entry.act { sign_in_using_credentials }
+      Page::Main::Entry.act { visit_login_page }
+      Page::Main::Login.act { sign_in_using_credentials }
 
       Scenario::Gitlab::Project::Create.perform do |project|
         project.name = 'awesome-project'
diff --git a/qa/qa/specs/features/repository/clone_spec.rb b/qa/qa/specs/features/repository/clone_spec.rb
index 3571173783d..5cc3b3b9c1b 100644
--- a/qa/qa/specs/features/repository/clone_spec.rb
+++ b/qa/qa/specs/features/repository/clone_spec.rb
@@ -9,7 +9,8 @@ module QA
       end
 
       before do
-        Page::Main::Entry.act { sign_in_using_credentials }
+        Page::Main::Entry.act { visit_login_page }
+        Page::Main::Login.act { sign_in_using_credentials }
 
         Scenario::Gitlab::Project::Create.perform do |scenario|
           scenario.name = 'project-with-code'
diff --git a/qa/qa/specs/features/repository/push_spec.rb b/qa/qa/specs/features/repository/push_spec.rb
index 0e691fb0d75..30935dc1e13 100644
--- a/qa/qa/specs/features/repository/push_spec.rb
+++ b/qa/qa/specs/features/repository/push_spec.rb
@@ -2,7 +2,8 @@ module QA
   feature 'push code to repository', :core do
     context 'with regular account over http' do
       scenario 'user pushes code to the repository'  do
-        Page::Main::Entry.act { sign_in_using_credentials }
+        Page::Main::Entry.act { visit_login_page }
+        Page::Main::Login.act { sign_in_using_credentials }
 
         Scenario::Gitlab::Project::Create.perform do |scenario|
           scenario.name = 'project_with_code'
diff --git a/qa/qa/specs/runner.rb b/qa/qa/specs/runner.rb
index 2aa18d5d3a1..f98b8f88e9a 100644
--- a/qa/qa/specs/runner.rb
+++ b/qa/qa/specs/runner.rb
@@ -2,16 +2,22 @@ require 'rspec/core'
 
 module QA
   module Specs
-    class Runner
-      include Scenario::Actable
+    class Runner < Scenario::Template
+      attr_accessor :tty, :tags, :files
 
-      def rspec(tty: false, tags: [], files: ['qa/specs/features'])
+      def initialize
+        @tty = false
+        @tags = []
+        @files = ['qa/specs/features']
+      end
+
+      def perform
         args = []
-        args << '--tty' if tty
-        tags.to_a.each do |tag|
-          args << ['-t', tag.to_s]
-        end
-        args << files
+        args.push('--tty') if tty
+        tags.to_a.each { |tag| args.push(['-t', tag.to_s]) }
+        args.push(files)
+
+        Specs::Config.perform
 
         RSpec::Core::Runner.run(args.flatten, $stderr, $stdout).tap do |status|
           abort if status.nonzero?
diff --git a/qa/spec/runtime/scenario_spec.rb b/qa/spec/runtime/scenario_spec.rb
new file mode 100644
index 00000000000..7009192bcc0
--- /dev/null
+++ b/qa/spec/runtime/scenario_spec.rb
@@ -0,0 +1,27 @@
+describe QA::Runtime::Scenario do
+  subject do
+    Module.new.extend(described_class)
+  end
+
+  it 'makes it possible to define global scenario attributes' do
+    subject.define(:my_attribute, 'some-value')
+    subject.define(:another_attribute, 'another-value')
+
+    expect(subject.my_attribute).to eq 'some-value'
+    expect(subject.another_attribute).to eq 'another-value'
+    expect(subject.attributes)
+      .to eq(my_attribute: 'some-value', another_attribute: 'another-value')
+  end
+
+  it 'raises error when attribute is not known' do
+    expect { subject.invalid_accessor }
+      .to raise_error ArgumentError, /invalid_accessor/
+  end
+
+  it 'raises error when attribute is empty' do
+    subject.define(:empty_attribute, '')
+
+    expect { subject.empty_attribute }
+      .to raise_error ArgumentError, /empty_attribute/
+  end
+end
diff --git a/qa/spec/scenario/bootable_spec.rb b/qa/spec/scenario/bootable_spec.rb
new file mode 100644
index 00000000000..273aac7677e
--- /dev/null
+++ b/qa/spec/scenario/bootable_spec.rb
@@ -0,0 +1,24 @@
+describe QA::Scenario::Bootable do
+  subject do
+    Class.new(QA::Scenario::Template)
+      .include(described_class)
+  end
+
+  it 'makes it possible to define the scenario attribute' do
+    subject.class_eval do
+      attribute :something, '--something SOMETHING', 'Some attribute'
+      attribute :another, '--another ANOTHER', 'Some other attribute'
+    end
+
+    expect(subject).to receive(:perform)
+      .with(something: 'test', another: 'other')
+
+    subject.launch!(%w[--another other --something test])
+  end
+
+  it 'does not require attributes to be defined' do
+    expect(subject).to receive(:perform).with('some', 'argv')
+
+    subject.launch!(%w[some argv])
+  end
+end
diff --git a/qa/spec/scenario/entrypoint_spec.rb b/qa/spec/scenario/entrypoint_spec.rb
index 3fd068b641c..aec79dcea04 100644
--- a/qa/spec/scenario/entrypoint_spec.rb
+++ b/qa/spec/scenario/entrypoint_spec.rb
@@ -6,31 +6,30 @@ describe QA::Scenario::Entrypoint do
   end
 
   context '#perform' do
-    let(:config) { spy('Specs::Config') }
+    let(:arguments) { spy('Runtime::Scenario') }
     let(:release) { spy('Runtime::Release') }
     let(:runner) { spy('Specs::Runner') }
 
     before do
-      allow(config).to receive(:perform) { |&block| block.call config }
-      allow(runner).to receive(:perform) { |&block| block.call runner }
-
-      stub_const('QA::Specs::Config', config)
       stub_const('QA::Runtime::Release', release)
+      stub_const('QA::Runtime::Scenario', arguments)
       stub_const('QA::Specs::Runner', runner)
+
+      allow(runner).to receive(:perform).and_yield(runner)
     end
 
-    it 'should set address' do
+    it 'sets an address of the subject' do
       subject.perform("hello")
 
-      expect(config).to have_received(:address=).with("hello")
+      expect(arguments).to have_received(:define)
+        .with(:gitlab_address, "hello")
     end
 
     context 'no paths' do
       it 'should call runner with default arguments' do
         subject.perform("test")
 
-        expect(runner).to have_received(:rspec)
-          .with(hash_including(files: 'qa/specs/features'))
+        expect(runner).to have_received(:files=).with('qa/specs/features')
       end
     end
 
@@ -38,8 +37,7 @@ describe QA::Scenario::Entrypoint do
       it 'should call runner with paths' do
         subject.perform('test', 'path1', 'path2')
 
-        expect(runner).to have_received(:rspec)
-          .with(hash_including(files: %w(path1 path2)))
+        expect(runner).to have_received(:files=).with(%w[path1 path2])
       end
     end
   end
diff --git a/scripts/create_mysql_user.sh b/scripts/create_mysql_user.sh
new file mode 100644
index 00000000000..28f6cfb50ae
--- /dev/null
+++ b/scripts/create_mysql_user.sh
@@ -0,0 +1,8 @@
+#!/bin/bash
+
+mysql --user=root --host=mysql <<EOF
+CREATE DATABASE IF NOT EXISTS gitlabhq_test;
+CREATE USER IF NOT EXISTS 'gitlab'@'%';
+GRANT ALL PRIVILEGES ON gitlabhq_test.* TO 'gitlab'@'%';
+FLUSH PRIVILEGES;
+EOF
diff --git a/scripts/create_postgres_user.sh b/scripts/create_postgres_user.sh
new file mode 100644
index 00000000000..8a744df3226
--- /dev/null
+++ b/scripts/create_postgres_user.sh
@@ -0,0 +1,8 @@
+#!/bin/bash
+
+psql -h postgres -U postgres postgres <<EOF
+DROP DATABASE IF EXISTS gitlabhq_test;
+CREATE DATABASE gitlabhq_test;
+CREATE USER gitlab;
+GRANT ALL PRIVILEGES ON DATABASE gitlabhq_test TO gitlab;
+EOF
diff --git a/scripts/prepare_build.sh b/scripts/prepare_build.sh
index 7abadef5e89..36bcf087cd9 100644
--- a/scripts/prepare_build.sh
+++ b/scripts/prepare_build.sh
@@ -1,6 +1,7 @@
 . scripts/utils.sh
 
 export SETUP_DB=${SETUP_DB:-true}
+export CREATE_DB_USER=${CREATE_DB_USER:-$SETUP_DB}
 export USE_BUNDLE_INSTALL=${USE_BUNDLE_INSTALL:-true}
 export BUNDLE_INSTALL_FLAGS="--without production --jobs $(nproc) --path vendor --retry 3 --quiet"
 
@@ -26,6 +27,9 @@ fi
 
 cp config/database.yml.$GITLAB_DATABASE config/database.yml
 
+# Set user to a non-superuser to ensure we test permissions
+sed -i 's/username: root/username: gitlab/g' config/database.yml
+
 if [ "$GITLAB_DATABASE" = 'postgresql' ]; then
     sed -i 's/localhost/postgres/g' config/database.yml
 else # Assume it's mysql
@@ -44,6 +48,16 @@ sed -i 's/localhost/redis/g' config/redis.queues.yml
 cp config/redis.shared_state.yml.example config/redis.shared_state.yml
 sed -i 's/localhost/redis/g' config/redis.shared_state.yml
 
+# Some tasks (e.g. db:seed_fu) need to have a properly-configured database
+# user but not necessarily a full schema loaded
+if [ "$CREATE_DB_USER" != "false" ]; then
+    if [ "$GITLAB_DATABASE" = 'postgresql' ]; then
+        . scripts/create_postgres_user.sh
+    else
+        . scripts/create_mysql_user.sh
+    fi
+fi
+
 if [ "$SETUP_DB" != "false" ]; then
     bundle exec rake db:drop db:create db:schema:load db:migrate
 
diff --git a/scripts/trigger-build-docs b/scripts/trigger-build-docs
index d3a9f5ff4ea..89ad6a99467 100755
--- a/scripts/trigger-build-docs
+++ b/scripts/trigger-build-docs
@@ -31,13 +31,6 @@ def docs_branch
 end
 
 #
-# Dummy way to find out in which repo we are, CE or EE
-#
-def ee?
-  File.exist?('CHANGELOG-EE.md')
-end
-
-#
 # Create a remote branch in gitlab-docs
 #
 def create_remote_branch
@@ -56,14 +49,34 @@ def remove_remote_branch
 end
 
 #
+# Define suffix in review app URL based on project
+#
+def slug
+  case ENV["CI_PROJECT_NAME"]
+  when 'gitlab-ce'
+    'ce'
+  when 'gitlab-ee'
+    'ee'
+  when 'gitlab-runner'
+    'runner'
+  when 'omnibus-gitlab'
+    'omnibus'
+  end
+end
+
+#
+# Overriding vars in https://gitlab.com/gitlab-com/gitlab-docs/blob/master/.gitlab-ci.yml
+#
+def param_name
+  "BRANCH_#{slug.upcase}"
+end
+
+#
 # Trigger a pipeline in gitlab-docs
 #
 def trigger_pipeline
-  # Overriding vars in https://gitlab.com/gitlab-com/gitlab-docs/blob/master/.gitlab-ci.yml
-  param_name = ee? ? 'BRANCH_EE' : 'BRANCH_CE'
-
   # The review app URL
-  app_url = "http://#{docs_branch}.#{ENV["DOCS_REVIEW_APPS_DOMAIN"]}/#{ee? ? 'ee' : 'ce'}"
+  app_url = "http://#{docs_branch}.#{ENV["DOCS_REVIEW_APPS_DOMAIN"]}/#{slug}"
 
   # Create the pipeline
   puts "=> Triggering a pipeline..."
diff --git a/spec/controllers/concerns/issuable_collections_spec.rb b/spec/controllers/concerns/issuable_collections_spec.rb
index c9687af4dd2..d7825364ed5 100644
--- a/spec/controllers/concerns/issuable_collections_spec.rb
+++ b/spec/controllers/concerns/issuable_collections_spec.rb
@@ -12,71 +12,70 @@ describe IssuableCollections do
 
     controller = klass.new
 
-    allow(controller).to receive(:params).and_return(state: 'opened')
+    allow(controller).to receive(:params).and_return(ActionController::Parameters.new(params))
 
     controller
   end
 
-  describe '#redirect_out_of_range' do
-    before do
-      allow(controller).to receive(:url_for)
-    end
-
-    it 'returns true and redirects if the offset is out of range' do
-      relation = double(:relation, current_page: 10)
-
-      expect(controller).to receive(:redirect_to)
-      expect(controller.send(:redirect_out_of_range, relation, 2)).to eq(true)
-    end
-
-    it 'returns false if the offset is not out of range' do
-      relation = double(:relation, current_page: 1)
-
-      expect(controller).not_to receive(:redirect_to)
-      expect(controller.send(:redirect_out_of_range, relation, 2)).to eq(false)
-    end
-  end
-
-  describe '#issues_page_count' do
-    it 'returns the number of issue pages' do
-      project = create(:project, :public)
-
-      create(:issue, project: project)
-
-      finder = IssuesFinder.new(user)
-      issues = finder.execute
+  describe '#page_count_for_relation' do
+    let(:params) { { state: 'opened' } }
 
-      allow(controller).to receive(:issues_finder)
-        .and_return(finder)
+    it 'returns the number of pages' do
+      relation = double(:relation, limit_value: 20)
+      pages = controller.send(:page_count_for_relation, relation, 28)
 
-      expect(controller.send(:issues_page_count, issues)).to eq(1)
+      expect(pages).to eq(2)
     end
   end
 
-  describe '#merge_requests_page_count' do
-    it 'returns the number of merge request pages' do
-      project = create(:project, :public)
-
-      create(:merge_request, source_project: project, target_project: project)
-
-      finder = MergeRequestsFinder.new(user)
-      merge_requests = finder.execute
-
-      allow(controller).to receive(:merge_requests_finder)
-        .and_return(finder)
-
-      pages = controller.send(:merge_requests_page_count, merge_requests)
-
-      expect(pages).to eq(1)
+  describe '#filter_params' do
+    let(:params) do
+      {
+        assignee_id: '1',
+        assignee_username: 'user1',
+        author_id: '2',
+        author_username: 'user2',
+        authorized_only: 'true',
+        due_date: '2017-01-01',
+        group_id: '3',
+        iids: '4',
+        label_name: 'foo',
+        milestone_title: 'bar',
+        my_reaction_emoji: 'thumbsup',
+        non_archived: 'true',
+        project_id: '5',
+        scope: 'all',
+        search: 'baz',
+        sort: 'priority',
+        state: 'opened',
+        invalid_param: 'invalid_param'
+      }
     end
-  end
 
-  describe '#page_count_for_relation' do
-    it 'returns the number of pages' do
-      relation = double(:relation, limit_value: 20)
-      pages = controller.send(:page_count_for_relation, relation, 28)
-
-      expect(pages).to eq(2)
+    it 'filters params' do
+      allow(controller).to receive(:cookies).and_return({})
+
+      filtered_params = controller.send(:filter_params)
+
+      expect(filtered_params).to eq({
+        'assignee_id' => '1',
+        'assignee_username' => 'user1',
+        'author_id' => '2',
+        'author_username' => 'user2',
+        'authorized_only' => 'true',
+        'due_date' => '2017-01-01',
+        'group_id' => '3',
+        'iids' => '4',
+        'label_name' => 'foo',
+        'milestone_title' => 'bar',
+        'my_reaction_emoji' => 'thumbsup',
+        'non_archived' => 'true',
+        'project_id' => '5',
+        'scope' => 'all',
+        'search' => 'baz',
+        'sort' => 'priority',
+        'state' => 'opened'
+      })
     end
   end
 end
diff --git a/spec/controllers/dashboard/todos_controller_spec.rb b/spec/controllers/dashboard/todos_controller_spec.rb
index d862e1447e3..f9faa4fa59a 100644
--- a/spec/controllers/dashboard/todos_controller_spec.rb
+++ b/spec/controllers/dashboard/todos_controller_spec.rb
@@ -44,11 +44,11 @@ describe Dashboard::TodosController do
 
     context 'when using pagination' do
       let(:last_page) { user.todos.page.total_pages }
-      let!(:issues) { create_list(:issue, 2, project: project, assignees: [user]) }
+      let!(:issues) { create_list(:issue, 3, project: project, assignees: [user]) }
 
       before do
         issues.each { |issue| todo_service.new_issue(issue, user) }
-        allow(Kaminari.config).to receive(:default_per_page).and_return(1)
+        allow(Kaminari.config).to receive(:default_per_page).and_return(2)
       end
 
       it 'redirects to last_page if page number is larger than number of pages' do
diff --git a/spec/controllers/import/github_controller_spec.rb b/spec/controllers/import/github_controller_spec.rb
index 45c3fa075ef..9bbd97ec305 100644
--- a/spec/controllers/import/github_controller_spec.rb
+++ b/spec/controllers/import/github_controller_spec.rb
@@ -21,9 +21,9 @@ describe Import::GithubController do
   describe "GET callback" do
     it "updates access token" do
       token = "asdasd12345"
-      allow_any_instance_of(Gitlab::GithubImport::Client)
+      allow_any_instance_of(Gitlab::LegacyGithubImport::Client)
         .to receive(:get_token).and_return(token)
-      allow_any_instance_of(Gitlab::GithubImport::Client)
+      allow_any_instance_of(Gitlab::LegacyGithubImport::Client)
         .to receive(:github_options).and_return({})
       stub_omniauth_provider('github')
 
diff --git a/spec/controllers/metrics_controller_spec.rb b/spec/controllers/metrics_controller_spec.rb
index 4aed2a25baa..9e8a37171ec 100644
--- a/spec/controllers/metrics_controller_spec.rb
+++ b/spec/controllers/metrics_controller_spec.rb
@@ -67,7 +67,8 @@ describe MetricsController do
         it 'returns proper response' do
           get :index
 
-          expect(response.status).to eq(404)
+          expect(response.status).to eq(200)
+          expect(response.body).to eq("# Metrics are disabled, see: http://test.host/help/administration/monitoring/prometheus/gitlab_metrics#gitlab-prometheus-metrics\n")
         end
       end
     end
diff --git a/spec/controllers/projects/clusters/applications_controller_spec.rb b/spec/controllers/projects/clusters/applications_controller_spec.rb
new file mode 100644
index 00000000000..8b460646059
--- /dev/null
+++ b/spec/controllers/projects/clusters/applications_controller_spec.rb
@@ -0,0 +1,85 @@
+require 'spec_helper'
+
+describe Projects::Clusters::ApplicationsController do
+  include AccessMatchersForController
+
+  def current_application
+    Clusters::Cluster::APPLICATIONS[application]
+  end
+
+  describe 'POST create' do
+    let(:cluster) { create(:cluster, :project, :provided_by_gcp) }
+    let(:project) { cluster.project }
+    let(:application) { 'helm' }
+    let(:params) { { application: application, id: cluster.id } }
+
+    describe 'functionality' do
+      let(:user) { create(:user) }
+
+      before do
+        project.add_master(user)
+        sign_in(user)
+      end
+
+      it 'schedule an application installation' do
+        expect(ClusterInstallAppWorker).to receive(:perform_async).with(application, anything).once
+
+        expect { go }.to change { current_application.count }
+        expect(response).to have_http_status(:no_content)
+        expect(cluster.application_helm).to be_scheduled
+      end
+
+      context 'when cluster do not exists' do
+        before do
+          cluster.destroy!
+        end
+
+        it 'return 404' do
+          expect { go }.not_to change { current_application.count }
+          expect(response).to have_http_status(:not_found)
+        end
+      end
+
+      context 'when application is unknown' do
+        let(:application) { 'unkwnown-app' }
+
+        it 'return 404' do
+          go
+
+          expect(response).to have_http_status(:not_found)
+        end
+      end
+
+      context 'when application is already installing' do
+        before do
+          create(:cluster_applications_helm, :installing, cluster: cluster)
+        end
+
+        it 'returns 400' do
+          go
+
+          expect(response).to have_http_status(:bad_request)
+        end
+      end
+    end
+
+    describe 'security' do
+      before do
+        allow(ClusterInstallAppWorker).to receive(:perform_async)
+      end
+
+      it { expect { go }.to be_allowed_for(:admin) }
+      it { expect { go }.to be_allowed_for(:owner).of(project) }
+      it { expect { go }.to be_allowed_for(:master).of(project) }
+      it { expect { go }.to be_denied_for(:developer).of(project) }
+      it { expect { go }.to be_denied_for(:reporter).of(project) }
+      it { expect { go }.to be_denied_for(:guest).of(project) }
+      it { expect { go }.to be_denied_for(:user) }
+      it { expect { go }.to be_denied_for(:external) }
+    end
+
+    def go
+      post :create, params.merge(namespace_id: project.namespace, project_id: project)
+    end
+  end
+end
diff --git a/spec/controllers/projects/clusters_controller_spec.rb b/spec/controllers/projects/clusters_controller_spec.rb
index bd924a1c7be..ca2bcb2b5ae 100644
--- a/spec/controllers/projects/clusters_controller_spec.rb
+++ b/spec/controllers/projects/clusters_controller_spec.rb
@@ -1,68 +1,108 @@
 require 'spec_helper'
 
 describe Projects::ClustersController do
-  set(:user) { create(:user) }
-  set(:project) { create(:project) }
-  let(:role) { :master }
+  include AccessMatchersForController
+  include GoogleApi::CloudPlatformHelpers
 
-  before do
-    project.team << [user, role]
+  describe 'GET index' do
+    describe 'functionality' do
+      let(:user) { create(:user) }
 
-    sign_in(user)
-  end
+      before do
+        project.add_master(user)
+        sign_in(user)
+      end
 
-  describe 'GET index' do
-    subject do
-      get :index, namespace_id: project.namespace,
-                  project_id: project
-    end
+      context 'when project has a cluster' do
+        let(:cluster) { create(:cluster, :project, :provided_by_gcp) }
+        let(:project) { cluster.project }
 
-    context 'when cluster is already created' do
-      let!(:cluster) { create(:gcp_cluster, :created_on_gke, project: project) }
+        it { expect(go).to redirect_to(project_cluster_path(project, project.cluster)) }
+      end
 
-      it 'redirects to show a cluster' do
-        subject
+      context 'when project does not have a cluster' do
+        let(:project) { create(:project) }
 
-        expect(response).to redirect_to(project_cluster_path(project, cluster))
+        it { expect(go).to redirect_to(new_project_cluster_path(project)) }
       end
     end
 
-    context 'when we do not have cluster' do
-      it 'redirects to create a cluster' do
-        subject
+    describe 'security' do
+      let(:cluster) { create(:cluster, :project, :provided_by_gcp) }
+      let(:project) { cluster.project }
+
+      it { expect { go }.to be_allowed_for(:admin) }
+      it { expect { go }.to be_allowed_for(:owner).of(project) }
+      it { expect { go }.to be_allowed_for(:master).of(project) }
+      it { expect { go }.to be_denied_for(:developer).of(project) }
+      it { expect { go }.to be_denied_for(:reporter).of(project) }
+      it { expect { go }.to be_denied_for(:guest).of(project) }
+      it { expect { go }.to be_denied_for(:user) }
+      it { expect { go }.to be_denied_for(:external) }
+    end
 
-        expect(response).to redirect_to(new_project_cluster_path(project))
-      end
+    def go
+      get :index, namespace_id: project.namespace.to_param, project_id: project
     end
   end
 
   describe 'GET login' do
-    render_views
+    let(:project) { create(:project) }
 
-    subject do
-      get :login, namespace_id: project.namespace,
-                  project_id: project
-    end
-
-    context 'when we do have omniauth configured' do
-      it 'shows login button' do
-        subject
+    describe 'functionality' do
+      let(:user) { create(:user) }
 
-        expect(response.body).to include('auth_buttons/signin_with_google')
+      before do
+        project.add_master(user)
+        sign_in(user)
       end
-    end
 
-    context 'when we do not have omniauth configured' do
-      before do
-        stub_omniauth_setting(providers: [])
+      context 'when omniauth has been configured' do
+        let(:key) { 'secere-key' }
+
+        let(:session_key_for_redirect_uri) do
+          GoogleApi::CloudPlatform::Client.session_key_for_redirect_uri(key)
+        end
+
+        before do
+          allow(SecureRandom).to receive(:hex).and_return(key)
+        end
+
+        it 'has authorize_url' do
+          go
+
+          expect(assigns(:authorize_url)).to include(key)
+          expect(session[session_key_for_redirect_uri]).to eq(providers_gcp_new_project_clusters_url(project))
+        end
       end
 
-      it 'shows notice message' do
-        subject
+      context 'when omniauth has not configured' do
+        before do
+          stub_omniauth_setting(providers: [])
+        end
+
+        it 'does not have authorize_url' do
+          go
 
-        expect(response.body).to include('Ask your GitLab administrator if you want to use this service.')
+          expect(assigns(:authorize_url)).to be_nil
+        end
       end
     end
+
+    describe 'security' do
+      it { expect { go }.to be_allowed_for(:admin) }
+      it { expect { go }.to be_allowed_for(:owner).of(project) }
+      it { expect { go }.to be_allowed_for(:master).of(project) }
+      it { expect { go }.to be_denied_for(:developer).of(project) }
+      it { expect { go }.to be_denied_for(:reporter).of(project) }
+      it { expect { go }.to be_denied_for(:guest).of(project) }
+      it { expect { go }.to be_denied_for(:user) }
+      it { expect { go }.to be_denied_for(:external) }
+    end
+
+    def go
+      get :login, namespace_id: project.namespace, project_id: project
+    end
   end
 
   shared_examples 'requires to login' do
@@ -73,236 +113,336 @@ describe Projects::ClustersController do
     end
   end
 
-  describe 'GET new' do
-    render_views
+  describe 'GET new_gcp' do
+    let(:project) { create(:project) }
 
-    subject do
-      get :new, namespace_id: project.namespace,
-                project_id: project
-    end
+    describe 'functionality' do
+      let(:user) { create(:user) }
 
-    context 'when logged' do
       before do
-        make_logged_in
+        project.add_master(user)
+        sign_in(user)
+      end
+
+      context 'when access token is valid' do
+        before do
+          stub_google_api_validate_token
+        end
+
+        it 'has new object' do
+          go
+
+          expect(assigns(:cluster)).to be_an_instance_of(Clusters::Cluster)
+        end
       end
 
-      it 'shows a creation form' do
-        subject
+      context 'when access token is expired' do
+        before do
+          stub_google_api_expired_token
+        end
+
+        it { expect(go).to redirect_to(login_project_clusters_path(project)) }
+      end
 
-        expect(response.body).to include('Create cluster')
+      context 'when access token is not stored in session' do
+        it { expect(go).to redirect_to(login_project_clusters_path(project)) }
       end
     end
 
-    context 'when not logged' do
-      it_behaves_like 'requires to login'
+    describe 'security' do
+      it { expect { go }.to be_allowed_for(:admin) }
+      it { expect { go }.to be_allowed_for(:owner).of(project) }
+      it { expect { go }.to be_allowed_for(:master).of(project) }
+      it { expect { go }.to be_denied_for(:developer).of(project) }
+      it { expect { go }.to be_denied_for(:reporter).of(project) }
+      it { expect { go }.to be_denied_for(:guest).of(project) }
+      it { expect { go }.to be_denied_for(:user) }
+      it { expect { go }.to be_denied_for(:external) }
+    end
+
+    def go
+      get :new_gcp, namespace_id: project.namespace, project_id: project
     end
   end
 
   describe 'POST create' do
-    subject do
-      post :create, params.merge(namespace_id: project.namespace,
-                                 project_id: project)
+    let(:project) { create(:project) }
+
+    let(:params) do
+      {
+        cluster: {
+          name: 'new-cluster',
+          provider_type: :gcp,
+          provider_gcp_attributes: {
+            gcp_project_id: '111'
+          }
+        }
+      }
     end
 
-    context 'when not logged' do
-      let(:params) { {} }
-
-      it_behaves_like 'requires to login'
-    end
+    describe 'functionality' do
+      let(:user) { create(:user) }
 
-    context 'when logged in' do
       before do
-        make_logged_in
+        project.add_master(user)
+        sign_in(user)
       end
 
-      context 'when all required parameters are set' do
-        let(:params) do
-          {
-            cluster: {
-              gcp_cluster_name: 'new-cluster',
-              gcp_project_id: '111'
-            }
-          }
-        end
-
+      context 'when access token is valid' do
         before do
-          expect(ClusterProvisionWorker).to receive(:perform_async) { }
+          stub_google_api_validate_token
         end
 
-        it 'creates a new cluster' do
-          expect { subject }.to change { Gcp::Cluster.count }
-
-          expect(response).to redirect_to(project_cluster_path(project, project.cluster))
+        context 'when creates a cluster on gke' do
+          it 'creates a new cluster' do
+            expect(ClusterProvisionWorker).to receive(:perform_async)
+            expect { go }.to change { Clusters::Cluster.count }
+            expect(response).to redirect_to(project_cluster_path(project, project.cluster))
+          end
         end
       end
 
-      context 'when not all required parameters are set' do
-        render_views
-
-        let(:params) do
-          {
-            cluster: {
-              project_namespace: 'some namespace'
-            }
-          }
+      context 'when access token is expired' do
+        before do
+          stub_google_api_expired_token
         end
 
-        it 'shows an error message' do
-          expect { subject }.not_to change { Gcp::Cluster.count }
+        it 'redirects to login page' do
+          expect(go).to redirect_to(login_project_clusters_path(project))
+        end
+      end
 
-          expect(response).to render_template(:new)
+      context 'when access token is not stored in session' do
+        it 'redirects to login page' do
+          expect(go).to redirect_to(login_project_clusters_path(project))
         end
       end
     end
+
+    describe 'security' do
+      it { expect { go }.to be_allowed_for(:admin) }
+      it { expect { go }.to be_allowed_for(:owner).of(project) }
+      it { expect { go }.to be_allowed_for(:master).of(project) }
+      it { expect { go }.to be_denied_for(:developer).of(project) }
+      it { expect { go }.to be_denied_for(:reporter).of(project) }
+      it { expect { go }.to be_denied_for(:guest).of(project) }
+      it { expect { go }.to be_denied_for(:user) }
+      it { expect { go }.to be_denied_for(:external) }
+    end
+
+    def go
+      post :create, params.merge(namespace_id: project.namespace, project_id: project)
+    end
   end
 
   describe 'GET status' do
-    let(:cluster) { create(:gcp_cluster, :created_on_gke, project: project) }
+    let(:cluster) { create(:cluster, :project, :providing_by_gcp) }
+    let(:project) { cluster.project }
+
+    describe 'functionality' do
+      let(:user) { create(:user) }
 
-    subject do
+      before do
+        project.add_master(user)
+        sign_in(user)
+      end
+
+      it "responds with matching schema" do
+        go
+
+        expect(response).to have_gitlab_http_status(:ok)
+        expect(response).to match_response_schema('cluster_status')
+      end
+    end
+
+    describe 'security' do
+      it { expect { go }.to be_allowed_for(:admin) }
+      it { expect { go }.to be_allowed_for(:owner).of(project) }
+      it { expect { go }.to be_allowed_for(:master).of(project) }
+      it { expect { go }.to be_denied_for(:developer).of(project) }
+      it { expect { go }.to be_denied_for(:reporter).of(project) }
+      it { expect { go }.to be_denied_for(:guest).of(project) }
+      it { expect { go }.to be_denied_for(:user) }
+      it { expect { go }.to be_denied_for(:external) }
+    end
+
+    def go
       get :status, namespace_id: project.namespace,
                    project_id: project,
                    id: cluster,
                    format: :json
     end
-
-    it "responds with matching schema" do
-      subject
-
-      expect(response).to have_gitlab_http_status(:ok)
-      expect(response).to match_response_schema('cluster_status')
-    end
   end
 
   describe 'GET show' do
-    render_views
+    let(:cluster) { create(:cluster, :project, :provided_by_gcp) }
+    let(:project) { cluster.project }
 
-    let(:cluster) { create(:gcp_cluster, :created_on_gke, project: project) }
+    describe 'functionality' do
+      let(:user) { create(:user) }
 
-    subject do
-      get :show, namespace_id: project.namespace,
-                 project_id: project,
-                 id: cluster
-    end
-
-    context 'when logged as master' do
-      it "allows to update cluster" do
-        subject
-
-        expect(response).to have_gitlab_http_status(:ok)
-        expect(response.body).to include("Save")
+      before do
+        project.add_master(user)
+        sign_in(user)
       end
 
-      it "allows remove integration" do
-        subject
+      it "renders view" do
+        go
 
         expect(response).to have_gitlab_http_status(:ok)
-        expect(response.body).to include("Remove integration")
+        expect(assigns(:cluster)).to eq(cluster)
       end
     end
 
-    context 'when logged as developer' do
-      let(:role) { :developer }
-
-      it "does not allow to access page" do
-        subject
+    describe 'security' do
+      it { expect { go }.to be_allowed_for(:admin) }
+      it { expect { go }.to be_allowed_for(:owner).of(project) }
+      it { expect { go }.to be_allowed_for(:master).of(project) }
+      it { expect { go }.to be_denied_for(:developer).of(project) }
+      it { expect { go }.to be_denied_for(:reporter).of(project) }
+      it { expect { go }.to be_denied_for(:guest).of(project) }
+      it { expect { go }.to be_denied_for(:user) }
+      it { expect { go }.to be_denied_for(:external) }
+    end
 
-        expect(response).to have_gitlab_http_status(:not_found)
-      end
+    def go
+      get :show, namespace_id: project.namespace,
+                 project_id: project,
+                 id: cluster
     end
   end
 
   describe 'PUT update' do
-    render_views
+    let(:cluster) { create(:cluster, :project, :provided_by_gcp) }
+    let(:project) { cluster.project }
 
-    let(:service) { project.build_kubernetes_service }
-    let(:cluster) { create(:gcp_cluster, :created_on_gke, project: project, service: service) }
-    let(:params) { {} }
+    describe 'functionality' do
+      let(:user) { create(:user) }
 
-    subject do
-      put :update, params.merge(namespace_id: project.namespace,
-                                project_id: project,
-                                id: cluster)
-    end
+      before do
+        project.add_master(user)
+        sign_in(user)
+      end
 
-    context 'when logged as master' do
-      context 'when valid params are used' do
+      context 'when update enabled' do
         let(:params) do
           {
             cluster: { enabled: false }
           }
         end
 
-        it "redirects back to show page" do
-          subject
+        it "updates and redirects back to show page" do
+          go
 
+          cluster.reload
           expect(response).to redirect_to(project_cluster_path(project, project.cluster))
           expect(flash[:notice]).to eq('Cluster was successfully updated.')
+          expect(cluster.enabled).to be_falsey
         end
-      end
 
-      context 'when invalid params are used' do
-        let(:params) do
-          {
-            cluster: { project_namespace: 'my Namespace 321321321 #' }
-          }
-        end
+        context 'when cluster is being created' do
+          let(:cluster) { create(:cluster, :project, :providing_by_gcp) }
 
-        it "rejects changes" do
-          subject
+          it "rejects changes" do
+            go
 
-          expect(response).to have_gitlab_http_status(:ok)
-          expect(response).to render_template(:show)
+            expect(response).to have_gitlab_http_status(:ok)
+            expect(response).to render_template(:show)
+            expect(cluster.enabled).to be_truthy
+          end
         end
       end
     end
 
-    context 'when logged as developer' do
-      let(:role) { :developer }
+    describe 'security' do
+      let(:params) do
+        {
+          cluster: { enabled: false }
+        }
+      end
 
-      it "does not allow to update cluster" do
-        subject
+      it { expect { go }.to be_allowed_for(:admin) }
+      it { expect { go }.to be_allowed_for(:owner).of(project) }
+      it { expect { go }.to be_allowed_for(:master).of(project) }
+      it { expect { go }.to be_denied_for(:developer).of(project) }
+      it { expect { go }.to be_denied_for(:reporter).of(project) }
+      it { expect { go }.to be_denied_for(:guest).of(project) }
+      it { expect { go }.to be_denied_for(:user) }
+      it { expect { go }.to be_denied_for(:external) }
+    end
 
-        expect(response).to have_gitlab_http_status(:not_found)
-      end
+    def go
+      put :update, params.merge(namespace_id: project.namespace,
+                                project_id: project,
+                                id: cluster)
     end
   end
 
   describe 'delete update' do
-    let(:cluster) { create(:gcp_cluster, :created_on_gke, project: project) }
+    let(:cluster) { create(:cluster, :project, :provided_by_gcp) }
+    let(:project) { cluster.project }
 
-    subject do
-      delete :destroy, namespace_id: project.namespace,
-                       project_id: project,
-                       id: cluster
-    end
+    describe 'functionality' do
+      let(:user) { create(:user) }
 
-    context 'when logged as master' do
-      it "redirects back to clusters list" do
-        subject
+      before do
+        project.add_master(user)
+        sign_in(user)
+      end
+
+      it "destroys and redirects back to clusters list" do
+        expect { go }
+          .to change { Clusters::Cluster.count }.by(-1)
+          .and change { Clusters::Platforms::Kubernetes.count }.by(-1)
+          .and change { Clusters::Providers::Gcp.count }.by(-1)
 
         expect(response).to redirect_to(project_clusters_path(project))
         expect(flash[:notice]).to eq('Cluster integration was successfully removed.')
       end
-    end
 
-    context 'when logged as developer' do
-      let(:role) { :developer }
+      context 'when cluster is being created' do
+        let(:cluster) { create(:cluster, :project, :providing_by_gcp) }
+
+        it "destroys and redirects back to clusters list" do
+          expect { go }
+            .to change { Clusters::Cluster.count }.by(-1)
+            .and change { Clusters::Providers::Gcp.count }.by(-1)
+
+          expect(response).to redirect_to(project_clusters_path(project))
+          expect(flash[:notice]).to eq('Cluster integration was successfully removed.')
+        end
+      end
+
+      context 'when provider is user' do
+        let(:cluster) { create(:cluster, :project, :provided_by_user) }
 
-      it "does not allow to destroy cluster" do
-        subject
+        it "destroys and redirects back to clusters list" do
+          expect { go }
+            .to change { Clusters::Cluster.count }.by(-1)
+            .and change { Clusters::Platforms::Kubernetes.count }.by(-1)
+            .and change { Clusters::Providers::Gcp.count }.by(0)
 
-        expect(response).to have_gitlab_http_status(:not_found)
+          expect(response).to redirect_to(project_clusters_path(project))
+          expect(flash[:notice]).to eq('Cluster integration was successfully removed.')
+        end
       end
     end
-  end
 
-  def make_logged_in
-    session[GoogleApi::CloudPlatform::Client.session_key_for_token] = '1234'
-    session[GoogleApi::CloudPlatform::Client.session_key_for_expires_at] = in_hour.to_i.to_s
-  end
+    describe 'security' do
+      it { expect { go }.to be_allowed_for(:admin) }
+      it { expect { go }.to be_allowed_for(:owner).of(project) }
+      it { expect { go }.to be_allowed_for(:master).of(project) }
+      it { expect { go }.to be_denied_for(:developer).of(project) }
+      it { expect { go }.to be_denied_for(:reporter).of(project) }
+      it { expect { go }.to be_denied_for(:guest).of(project) }
+      it { expect { go }.to be_denied_for(:user) }
+      it { expect { go }.to be_denied_for(:external) }
+    end
 
-  def in_hour
-    Time.now + 1.hour
+    def go
+      delete :destroy, namespace_id: project.namespace,
+                       project_id: project,
+                       id: cluster
+    end
   end
 end
diff --git a/spec/controllers/projects/commit_controller_spec.rb b/spec/controllers/projects/commit_controller_spec.rb
index 4612fc6e441..5dc27e2bbba 100644
--- a/spec/controllers/projects/commit_controller_spec.rb
+++ b/spec/controllers/projects/commit_controller_spec.rb
@@ -134,8 +134,8 @@ describe Projects::CommitController do
     end
   end
 
-  describe "GET branches" do
-    it "contains branch and tags information" do
+  describe 'GET branches' do
+    it 'contains branch and tags information' do
       commit = project.commit('5937ac0a7beb003549fc5fd26fc247adbce4a52e')
 
       get(:branches,
@@ -143,8 +143,26 @@ describe Projects::CommitController do
           project_id: project,
           id: commit.id)
 
-      expect(assigns(:branches)).to include("master", "feature_conflict")
-      expect(assigns(:tags)).to include("v1.1.0")
+      expect(assigns(:branches)).to include('master', 'feature_conflict')
+      expect(assigns(:branches_limit_exceeded)).to be_falsey
+      expect(assigns(:tags)).to include('v1.1.0')
+      expect(assigns(:tags_limit_exceeded)).to be_falsey
+    end
+
+    it 'returns :limit_exceeded when number of branches/tags reach a threshhold' do
+      commit = project.commit('5937ac0a7beb003549fc5fd26fc247adbce4a52e')
+      allow_any_instance_of(Repository).to receive(:branch_count).and_return(1001)
+      allow_any_instance_of(Repository).to receive(:tag_count).and_return(1001)
+
+      get(:branches,
+          namespace_id: project.namespace,
+          project_id: project,
+          id: commit.id)
+
+      expect(assigns(:branches)).to eq([])
+      expect(assigns(:branches_limit_exceeded)).to be_truthy
+      expect(assigns(:tags)).to eq([])
+      expect(assigns(:tags_limit_exceeded)).to be_truthy
     end
   end
 
diff --git a/spec/controllers/projects/jobs_controller_spec.rb b/spec/controllers/projects/jobs_controller_spec.rb
index f9688949a19..7490f8fefce 100644
--- a/spec/controllers/projects/jobs_controller_spec.rb
+++ b/spec/controllers/projects/jobs_controller_spec.rb
@@ -371,8 +371,10 @@ describe Projects::JobsController do
   end
 
   describe 'POST erase' do
+    let(:role) { :master }
+
     before do
-      project.add_developer(user)
+      project.team << [user, role]
       sign_in(user)
 
       post_erase
@@ -404,6 +406,27 @@ describe Projects::JobsController do
       end
     end
 
+    context 'when user is developer' do
+      let(:role) { :developer }
+      let(:job) { create(:ci_build, :erasable, :trace, pipeline: pipeline, user: triggered_by) }
+
+      context 'when triggered by same user' do
+        let(:triggered_by) { user }
+
+        it 'has successful status' do
+          expect(response).to have_gitlab_http_status(:found)
+        end
+      end
+
+      context 'when triggered by different user' do
+        let(:triggered_by) { create(:user) }
+
+        it 'does not have successful status' do
+          expect(response).not_to have_gitlab_http_status(:found)
+        end
+      end
+    end
+
     def post_erase
       post :erase, namespace_id: project.namespace,
                    project_id: project,
diff --git a/spec/controllers/projects/notes_controller_spec.rb b/spec/controllers/projects/notes_controller_spec.rb
index 5f5a789d5cc..37e9f863fc4 100644
--- a/spec/controllers/projects/notes_controller_spec.rb
+++ b/spec/controllers/projects/notes_controller_spec.rb
@@ -336,6 +336,29 @@ describe Projects::NotesController do
     end
   end
 
+  describe 'PUT update' do
+    let(:request_params) do
+      {
+        namespace_id: project.namespace,
+        project_id: project,
+        id: note,
+        format: :json,
+        note: {
+          note: "New comment"
+        }
+      }
+    end
+
+    before do
+      sign_in(note.author)
+      project.team << [note.author, :developer]
+    end
+
+    it "updates the note" do
+      expect { put :update, request_params }.to change { note.reload.note }
+    end
+  end
+
   describe 'DELETE destroy' do
     let(:request_params) do
       {
diff --git a/spec/controllers/projects/refs_controller_spec.rb b/spec/controllers/projects/refs_controller_spec.rb
index 3a3e7467ef2..748ae040928 100644
--- a/spec/controllers/projects/refs_controller_spec.rb
+++ b/spec/controllers/projects/refs_controller_spec.rb
@@ -23,12 +23,15 @@ describe Projects::RefsController do
       xhr :get,
           :logs_tree,
           namespace_id: project.namespace.to_param,
-          project_id: project, id: 'master',
-          path: 'foo/bar/baz.html', format: format
+          project_id: project,
+          id: 'master',
+          path: 'foo/bar/baz.html',
+          format: format
     end
 
     it 'never throws MissingTemplate' do
       expect { default_get }.not_to raise_error
+      expect { xhr_get(:json) }.not_to raise_error
       expect { xhr_get }.not_to raise_error
     end
 
@@ -42,5 +45,12 @@ describe Projects::RefsController do
       xhr_get(:js)
       expect(response).to be_success
     end
+
+    it 'renders JSON' do
+      xhr_get(:json)
+
+      expect(response).to be_success
+      expect(json_response).to be_kind_of(Array)
+    end
   end
 end
diff --git a/spec/controllers/projects_controller_spec.rb b/spec/controllers/projects_controller_spec.rb
index b1d7157e447..e7ab714c550 100644
--- a/spec/controllers/projects_controller_spec.rb
+++ b/spec/controllers/projects_controller_spec.rb
@@ -503,13 +503,14 @@ describe ProjectsController do
   describe "GET refs" do
     let(:public_project) { create(:project, :public, :repository) }
 
-    it "gets a list of branches and tags" do
-      get :refs, namespace_id: public_project.namespace, id: public_project
+    it 'gets a list of branches and tags' do
+      get :refs, namespace_id: public_project.namespace, id: public_project, sort: 'updated_desc'
 
       parsed_body = JSON.parse(response.body)
-      expect(parsed_body["Branches"]).to include("master")
-      expect(parsed_body["Tags"]).to include("v1.0.0")
-      expect(parsed_body["Commits"]).to be_nil
+      expect(parsed_body['Branches']).to include('master')
+      expect(parsed_body['Tags'].first).to eq('v1.1.0')
+      expect(parsed_body['Tags'].last).to eq('v1.0.0')
+      expect(parsed_body['Commits']).to be_nil
     end
 
     it "gets a list of branches, tags and commits" do
diff --git a/spec/factories/clusters/applications/helm.rb b/spec/factories/clusters/applications/helm.rb
new file mode 100644
index 00000000000..fab37195113
--- /dev/null
+++ b/spec/factories/clusters/applications/helm.rb
@@ -0,0 +1,35 @@
+FactoryGirl.define do
+  factory :cluster_applications_helm, class: Clusters::Applications::Helm do
+    cluster factory: %i(cluster provided_by_gcp)
+
+    trait :not_installable do
+      status(-2)
+    end
+
+    trait :installable do
+      status 0
+    end
+
+    trait :scheduled do
+      status 1
+    end
+
+    trait :installing do
+      status 2
+    end
+
+    trait :installed do
+      status 3
+    end
+
+    trait :errored do
+      status(-1)
+      status_reason 'something went wrong'
+    end
+
+    trait :timeouted do
+      installing
+      updated_at ClusterWaitForAppInstallationWorker::TIMEOUT.ago
+    end
+  end
+end
diff --git a/spec/factories/clusters/applications/ingress.rb b/spec/factories/clusters/applications/ingress.rb
new file mode 100644
index 00000000000..b103a980655
--- /dev/null
+++ b/spec/factories/clusters/applications/ingress.rb
@@ -0,0 +1,35 @@
+FactoryGirl.define do
+  factory :cluster_applications_ingress, class: Clusters::Applications::Ingress do
+    cluster factory: %i(cluster provided_by_gcp)
+
+    trait :not_installable do
+      status(-2)
+    end
+
+    trait :installable do
+      status 0
+    end
+
+    trait :scheduled do
+      status 1
+    end
+
+    trait :installing do
+      status 2
+    end
+
+    trait :installed do
+      status 3
+    end
+
+    trait :errored do
+      status(-1)
+      status_reason 'something went wrong'
+    end
+
+    trait :timeouted do
+      installing
+      updated_at ClusterWaitForAppInstallationWorker::TIMEOUT.ago
+    end
+  end
+end
diff --git a/spec/factories/clusters/cluster.rb b/spec/factories/clusters/cluster.rb
new file mode 100644
index 00000000000..c4261178f2d
--- /dev/null
+++ b/spec/factories/clusters/cluster.rb
@@ -0,0 +1,39 @@
+FactoryGirl.define do
+  factory :cluster, class: Clusters::Cluster do
+    user
+    name 'test-cluster'
+
+    trait :project do
+      after(:create) do |cluster, evaluator|
+        cluster.projects << create(:project)
+      end
+    end
+
+    trait :provided_by_user do
+      provider_type :user
+      platform_type :kubernetes
+
+      platform_kubernetes do
+        create(:cluster_platform_kubernetes, :configured)
+      end
+    end
+
+    trait :provided_by_gcp do
+      provider_type :gcp
+      platform_type :kubernetes
+
+      before(:create) do |cluster, evaluator|
+        cluster.platform_kubernetes = build(:cluster_platform_kubernetes, :configured)
+        cluster.provider_gcp = build(:cluster_provider_gcp, :created)
+      end
+    end
+
+    trait :providing_by_gcp do
+      provider_type :gcp
+
+      provider_gcp do
+        create(:cluster_provider_gcp, :creating)
+      end
+    end
+  end
+end
diff --git a/spec/factories/clusters/platforms/kubernetes.rb b/spec/factories/clusters/platforms/kubernetes.rb
new file mode 100644
index 00000000000..8b3e6ff35fa
--- /dev/null
+++ b/spec/factories/clusters/platforms/kubernetes.rb
@@ -0,0 +1,20 @@
+FactoryGirl.define do
+  factory :cluster_platform_kubernetes, class: Clusters::Platforms::Kubernetes do
+    cluster
+    namespace nil
+    api_url 'https://kubernetes.example.com'
+    token 'a' * 40
+
+    trait :configured do
+      api_url 'https://kubernetes.example.com'
+      token 'a' * 40
+      username 'xxxxxx'
+      password 'xxxxxx'
+
+      after(:create) do |platform_kubernetes, evaluator|
+        pem_file = File.expand_path(Rails.root.join('spec/fixtures/clusters/sample_cert.pem'))
+        platform_kubernetes.ca_cert = File.read(pem_file)
+      end
+    end
+  end
+end
diff --git a/spec/factories/clusters/providers/gcp.rb b/spec/factories/clusters/providers/gcp.rb
new file mode 100644
index 00000000000..a815410512a
--- /dev/null
+++ b/spec/factories/clusters/providers/gcp.rb
@@ -0,0 +1,32 @@
+FactoryGirl.define do
+  factory :cluster_provider_gcp, class: Clusters::Providers::Gcp do
+    cluster
+    gcp_project_id 'test-gcp-project'
+
+    trait :scheduled do
+      access_token 'access_token_123'
+    end
+
+    trait :creating do
+      access_token 'access_token_123'
+
+      after(:build) do |gcp, evaluator|
+        gcp.make_creating('operation-123')
+      end
+    end
+
+    trait :created do
+      endpoint '111.111.111.111'
+
+      after(:build) do |gcp, evaluator|
+        gcp.make_created
+      end
+    end
+
+    trait :errored do
+      after(:build) do |gcp, evaluator|
+        gcp.make_errored('Something wrong')
+      end
+    end
+  end
+end
diff --git a/spec/factories/commit_statuses.rb b/spec/factories/commit_statuses.rb
index 169590deb8e..abbe37df90e 100644
--- a/spec/factories/commit_statuses.rb
+++ b/spec/factories/commit_statuses.rb
@@ -1,6 +1,7 @@
 FactoryGirl.define do
   factory :commit_status, class: CommitStatus do
     name 'default'
+    stage 'test'
     status 'success'
     description 'commit status'
     pipeline factory: :ci_pipeline_with_one_job
diff --git a/spec/factories/gcp/cluster.rb b/spec/factories/gcp/cluster.rb
deleted file mode 100644
index 630e40da888..00000000000
--- a/spec/factories/gcp/cluster.rb
+++ /dev/null
@@ -1,38 +0,0 @@
-FactoryGirl.define do
-  factory :gcp_cluster, class: Gcp::Cluster do
-    project
-    user
-    enabled true
-    gcp_project_id 'gcp-project-12345'
-    gcp_cluster_name 'test-cluster'
-    gcp_cluster_zone 'us-central1-a'
-    gcp_cluster_size 1
-    gcp_machine_type 'n1-standard-4'
-
-    trait :with_kubernetes_service do
-      after(:create) do |cluster, evaluator|
-        create(:kubernetes_service, project: cluster.project).tap do |service|
-          cluster.update(service: service)
-        end
-      end
-    end
-
-    trait :custom_project_namespace do
-      project_namespace 'sample-app'
-    end
-
-    trait :created_on_gke do
-      status_event :make_created
-      endpoint '111.111.111.111'
-      ca_cert 'xxxxxx'
-      kubernetes_token 'xxxxxx'
-      username 'xxxxxx'
-      password 'xxxxxx'
-    end
-
-    trait :errored do
-      status_event :make_errored
-      status_reason 'general error'
-    end
-  end
-end
diff --git a/spec/factories/group_custom_attributes.rb b/spec/factories/group_custom_attributes.rb
new file mode 100644
index 00000000000..7ff5f376e8b
--- /dev/null
+++ b/spec/factories/group_custom_attributes.rb
@@ -0,0 +1,7 @@
+FactoryGirl.define do
+  factory :group_custom_attribute do
+    group
+    sequence(:key) { |n| "key#{n}" }
+    sequence(:value) { |n| "value#{n}" }
+  end
+end
diff --git a/spec/factories/merge_requests.rb b/spec/factories/merge_requests.rb
index 7c4a22c94c2..cc6cef63b47 100644
--- a/spec/factories/merge_requests.rb
+++ b/spec/factories/merge_requests.rb
@@ -83,10 +83,10 @@ FactoryGirl.define do
       target_project = merge_request.target_project
       source_project = merge_request.source_project
 
-      # Fake `write_ref` if we don't have repository
+      # Fake `fetch_ref!` if we don't have repository
       # We have too many existing tests replying on this behaviour
       unless [target_project, source_project].all?(&:repository_exists?)
-        allow(merge_request).to receive(:write_ref)
+        allow(merge_request).to receive(:fetch_ref!)
       end
     end
 
diff --git a/spec/factories/project_custom_attributes.rb b/spec/factories/project_custom_attributes.rb
new file mode 100644
index 00000000000..5eedeb86304
--- /dev/null
+++ b/spec/factories/project_custom_attributes.rb
@@ -0,0 +1,7 @@
+FactoryGirl.define do
+  factory :project_custom_attribute do
+    project
+    sequence(:key) { |n| "key#{n}" }
+    sequence(:value) { |n| "value#{n}" }
+  end
+end
diff --git a/spec/features/commits_spec.rb b/spec/features/commits_spec.rb
index 479fb713297..b163ca8dc75 100644
--- a/spec/features/commits_spec.rb
+++ b/spec/features/commits_spec.rb
@@ -1,8 +1,6 @@
 require 'spec_helper'
 
 describe 'Commits' do
-  include CiStatusHelper
-
   let(:project) { create(:project, :repository) }
   let(:user) { create(:user) }
 
@@ -33,7 +31,7 @@ describe 'Commits' do
 
       describe 'Commit builds' do
         before do
-          visit ci_status_path(pipeline)
+          visit pipeline_path(pipeline)
         end
 
         it { expect(page).to have_content pipeline.sha[0..7] }
@@ -79,7 +77,7 @@ describe 'Commits' do
 
         describe 'Commit builds', :js do
           before do
-            visit ci_status_path(pipeline)
+            visit pipeline_path(pipeline)
           end
 
           it 'shows pipeline`s data' do
@@ -95,7 +93,7 @@ describe 'Commits' do
           end
 
           it do
-            visit ci_status_path(pipeline)
+            visit pipeline_path(pipeline)
             click_on 'Download artifacts'
             expect(page.response_headers['Content-Type']).to eq(artifacts_file.content_type)
           end
@@ -103,7 +101,7 @@ describe 'Commits' do
 
         describe 'Cancel all builds' do
           it 'cancels commit', :js do
-            visit ci_status_path(pipeline)
+            visit pipeline_path(pipeline)
             click_on 'Cancel running'
             expect(page).to have_content 'canceled'
           end
@@ -111,7 +109,7 @@ describe 'Commits' do
 
         describe 'Cancel build' do
           it 'cancels build', :js do
-            visit ci_status_path(pipeline)
+            visit pipeline_path(pipeline)
             find('.js-btn-cancel-pipeline').click
             expect(page).to have_content 'canceled'
           end
@@ -120,13 +118,13 @@ describe 'Commits' do
         describe '.gitlab-ci.yml not found warning' do
           context 'ci builds enabled' do
             it "does not show warning" do
-              visit ci_status_path(pipeline)
+              visit pipeline_path(pipeline)
               expect(page).not_to have_content '.gitlab-ci.yml not found in this commit'
             end
 
             it 'shows warning' do
               stub_ci_pipeline_yaml_file(nil)
-              visit ci_status_path(pipeline)
+              visit pipeline_path(pipeline)
               expect(page).to have_content '.gitlab-ci.yml not found in this commit'
             end
           end
@@ -135,7 +133,7 @@ describe 'Commits' do
             before do
               stub_ci_builds_disabled
               stub_ci_pipeline_yaml_file(nil)
-              visit ci_status_path(pipeline)
+              visit pipeline_path(pipeline)
             end
 
             it 'does not show warning' do
@@ -149,7 +147,7 @@ describe 'Commits' do
         before do
           project.team << [user, :reporter]
           build.update_attributes(artifacts_file: artifacts_file)
-          visit ci_status_path(pipeline)
+          visit pipeline_path(pipeline)
         end
 
         it 'Renders header', :js do
@@ -171,7 +169,7 @@ describe 'Commits' do
             visibility_level: Gitlab::VisibilityLevel::INTERNAL,
             public_builds: false)
           build.update_attributes(artifacts_file: artifacts_file)
-          visit ci_status_path(pipeline)
+          visit pipeline_path(pipeline)
         end
 
         it do
diff --git a/spec/features/copy_as_gfm_spec.rb b/spec/features/copy_as_gfm_spec.rb
index c6ba1211b9e..1fcb8d5bc67 100644
--- a/spec/features/copy_as_gfm_spec.rb
+++ b/spec/features/copy_as_gfm_spec.rb
@@ -664,7 +664,7 @@ describe 'Copy as GFM', :js do
   def html_to_gfm(html, transformer = 'transformGFMSelection', target: nil)
     js = <<-JS.strip_heredoc
       (function(html) {
-        var transformer = window.gl.CopyAsGFM[#{transformer.inspect}];
+        var transformer = window.CopyAsGFM[#{transformer.inspect}];
 
         var node = document.createElement('div');
         $(html).each(function() { node.appendChild(this) });
@@ -678,7 +678,7 @@ describe 'Copy as GFM', :js do
         node = transformer(node, target);
         if (!node) return null;
 
-        return window.gl.CopyAsGFM.nodeToGFM(node);
+        return window.CopyAsGFM.nodeToGFM(node);
       })("#{escape_javascript(html)}")
     JS
     page.evaluate_script(js)
diff --git a/spec/features/groups/members/manage_members.rb b/spec/features/groups/members/manage_members.rb
index 9039b283393..da1e17225db 100644
--- a/spec/features/groups/members/manage_members.rb
+++ b/spec/features/groups/members/manage_members.rb
@@ -44,7 +44,11 @@ feature 'Groups > Members > Manage members' do
 
     visit group_group_members_path(group)
 
-    find(:css, '.project-members-page li', text: user2.name).find(:css, 'a.btn-remove').click
+    accept_confirm do
+      find(:css, '.project-members-page li', text: user2.name).find(:css, 'a.btn-remove').click
+    end
+
+    wait_for_requests
 
     expect(page).not_to have_content(user2.name)
     expect(group.users).not_to include(user2)
diff --git a/spec/features/issues/create_branch_merge_request_spec.rb b/spec/features/issues/create_branch_merge_request_spec.rb
index 546dc7e8a49..edea95c6699 100644
--- a/spec/features/issues/create_branch_merge_request_spec.rb
+++ b/spec/features/issues/create_branch_merge_request_spec.rb
@@ -64,6 +64,19 @@ feature 'Create Branch/Merge Request Dropdown on issue page', :feature, :js do
       end
     end
 
+    context 'when merge requests are disabled' do
+      before do
+        project.project_feature.update(merge_requests_access_level: 0)
+
+        visit project_issue_path(project, issue)
+      end
+
+      it 'shows only create branch button' do
+        expect(page).not_to have_button('Create a merge request')
+        expect(page).to have_button('Create a branch')
+      end
+    end
+
     context 'when issue is confidential' do
       it 'disables the create branch button' do
         issue = create(:issue, :confidential, project: project)
diff --git a/spec/features/issues/gfm_autocomplete_spec.rb b/spec/features/issues/gfm_autocomplete_spec.rb
index b8a66245153..95d637265e0 100644
--- a/spec/features/issues/gfm_autocomplete_spec.rb
+++ b/spec/features/issues/gfm_autocomplete_spec.rb
@@ -218,18 +218,18 @@ feature 'GFM autocomplete', :js do
       user_item = find('.atwho-view li', text: user.username)
       expect(user_item).to have_content(user.username)
     end
+  end
 
-    def expect_to_wrap(should_wrap, item, note, value)
-      expect(item).to have_content(value)
-      expect(item).not_to have_content("\"#{value}\"")
+  def expect_to_wrap(should_wrap, item, note, value)
+    expect(item).to have_content(value)
+    expect(item).not_to have_content("\"#{value}\"")
 
-      item.click
+    item.click
 
-      if should_wrap
-        expect(note.value).to include("\"#{value}\"")
-      else
-        expect(note.value).not_to include("\"#{value}\"")
-      end
+    if should_wrap
+      expect(note.value).to include("\"#{value}\"")
+    else
+      expect(note.value).not_to include("\"#{value}\"")
     end
   end
 end
diff --git a/spec/features/issues/issue_detail_spec.rb b/spec/features/issues/issue_detail_spec.rb
index 6fbee0ebcb5..4224a8fe5d4 100644
--- a/spec/features/issues/issue_detail_spec.rb
+++ b/spec/features/issues/issue_detail_spec.rb
@@ -1,9 +1,9 @@
 require 'rails_helper'
 
 feature 'Issue Detail', :js do
-  let(:user)      { create(:user) }
-  let(:project)   { create(:project, :public) }
-  let(:issue)     { create(:issue, project: project, author: user) }
+  let(:user)     { create(:user) }
+  let(:project)  { create(:project, :public) }
+  let(:issue)    { create(:issue, project: project, author: user) }
 
   context 'when user displays the issue' do
     before do
@@ -27,6 +27,7 @@ feature 'Issue Detail', :js do
       click_link 'Edit'
       fill_in 'issuable-title', with: 'issue title'
       click_button 'Save'
+      wait_for_requests
 
       Users::DestroyService.new(user).execute(user)
 
diff --git a/spec/features/merge_requests/create_new_mr_spec.rb b/spec/features/merge_requests/create_new_mr_spec.rb
index 5402d61da54..db5ce2d11a8 100644
--- a/spec/features/merge_requests/create_new_mr_spec.rb
+++ b/spec/features/merge_requests/create_new_mr_spec.rb
@@ -67,6 +67,28 @@ feature 'Create New Merge Request', :js do
     expect(page).to have_content 'git checkout -b orphaned-branch origin/orphaned-branch'
   end
 
+  it 'allows filtering multiple dropdowns' do
+    visit project_new_merge_request_path(project)
+
+    first('.js-source-branch').click
+
+    input = find('.dropdown-source-branch .dropdown-input-field')
+    input.click
+    input.send_keys('orphaned-branch')
+
+    find('.dropdown-source-branch .dropdown-content li', match: :first)
+    source_items = all('.dropdown-source-branch .dropdown-content li')
+
+    expect(source_items.count).to eq(1)
+
+    first('.js-target-branch').click
+
+    find('.dropdown-target-branch .dropdown-content li', match: :first)
+    target_items = all('.dropdown-target-branch .dropdown-content li')
+
+    expect(target_items.count).to be > 1
+  end
+
   context 'when target project cannot be viewed by the current user' do
     it 'does not leak the private project name & namespace' do
       private_project = create(:project, :private, :repository)
diff --git a/spec/features/merge_requests/filter_by_labels_spec.rb b/spec/features/merge_requests/filter_by_labels_spec.rb
index 9912e8165e6..7adae08e499 100644
--- a/spec/features/merge_requests/filter_by_labels_spec.rb
+++ b/spec/features/merge_requests/filter_by_labels_spec.rb
@@ -79,22 +79,6 @@ feature 'Merge Request filtering by Labels', :js do
     end
   end
 
-  context 'clear button' do
-    before do
-      input_filtered_search('label:~bug')
-    end
-
-    it 'allows user to remove filtered labels' do
-      first('.clear-search').click
-      filtered_search.send_keys(:enter)
-
-      expect(page).to have_issuable_counts(open: 3, closed: 0, all: 3)
-      expect(page).to have_content "Bugfix2"
-      expect(page).to have_content "Feature1"
-      expect(page).to have_content "Bugfix1"
-    end
-  end
-
   context 'filter dropdown' do
     it 'filters by label name' do
       init_label_search
diff --git a/spec/features/milestone_spec.rb b/spec/features/milestone_spec.rb
index 6c9dc67ad74..27efc32c95b 100644
--- a/spec/features/milestone_spec.rb
+++ b/spec/features/milestone_spec.rb
@@ -65,4 +65,33 @@ feature 'Milestone' do
       expect(find('.alert-danger')).to have_content('already being used for another group or project milestone.')
     end
   end
+
+  feature 'Open a milestone' do
+    scenario 'shows total issue time spent correctly when no time has been logged' do
+      milestone = create(:milestone, project: project, title: 8.7)
+
+      visit project_milestone_path(project, milestone)
+
+      page.within('.block.time_spent') do
+        expect(page).to have_content 'No time spent'
+        expect(page).to have_content 'None'
+      end
+    end
+
+    scenario 'shows total issue time spent' do
+      milestone = create(:milestone, project: project, title: 8.7)
+      issue1 = create(:issue, project: project, milestone: milestone)
+      issue2 = create(:issue, project: project, milestone: milestone)
+      issue1.spend_time(duration: 3600, user: user)
+      issue1.save!
+      issue2.spend_time(duration: 7200, user: user)
+      issue2.save!
+
+      visit project_milestone_path(project, milestone)
+
+      page.within('.block.time_spent') do
+        expect(page).to have_content '3h'
+      end
+    end
+  end
 end
diff --git a/spec/features/projects/clusters_spec.rb b/spec/features/projects/clusters_spec.rb
index 810f2c39b43..197e6df4997 100644
--- a/spec/features/projects/clusters_spec.rb
+++ b/spec/features/projects/clusters_spec.rb
@@ -1,6 +1,8 @@
 require 'spec_helper'
 
 feature 'Clusters', :js do
+  include GoogleApi::CloudPlatformHelpers
+
   let!(:project) { create(:project, :repository) }
   let!(:user) { create(:user) }
 
@@ -11,13 +13,17 @@ feature 'Clusters', :js do
 
   context 'when user has signed in Google' do
     before do
-      allow_any_instance_of(GoogleApi::CloudPlatform::Client)
-        .to receive(:validate_token).and_return(true)
+      allow_any_instance_of(Projects::ClustersController)
+        .to receive(:token_in_session).and_return('token')
+      allow_any_instance_of(Projects::ClustersController)
+        .to receive(:expires_at_in_session).and_return(1.hour.since.to_i.to_s)
     end
 
     context 'when user does not have a cluster and visits cluster index page' do
       before do
         visit project_clusters_path(project)
+
+        click_link 'Create on GKE'
       end
 
       it 'user sees a new page' do
@@ -36,18 +42,32 @@ feature 'Clusters', :js do
 
           allow(WaitForClusterCreationWorker).to receive(:perform_in).and_return(nil)
 
-          fill_in 'cluster_gcp_project_id', with: 'gcp-project-123'
-          fill_in 'cluster_gcp_cluster_name', with: 'dev-cluster'
+          fill_in 'cluster_provider_gcp_attributes_gcp_project_id', with: 'gcp-project-123'
+          fill_in 'cluster_name', with: 'dev-cluster'
           click_button 'Create cluster'
         end
 
         it 'user sees a cluster details page and creation status' do
           expect(page).to have_content('Cluster is being created on Google Container Engine...')
 
-          Gcp::Cluster.last.make_created!
+          # Application Installation buttons
+          page.within('.js-cluster-application-row-helm') do
+            expect(page.find(:css, '.js-cluster-application-install-button')['disabled']).to eq('true')
+            expect(page.find(:css, '.js-cluster-application-install-button').text).to eq('Install')
+          end
+
+          Clusters::Cluster.last.provider.make_created!
 
           expect(page).to have_content('Cluster was successfully created on Google Container Engine')
         end
+
+        it 'user sees a error if something worng during creation' do
+          expect(page).to have_content('Cluster is being created on Google Container Engine...')
+
+          Clusters::Cluster.last.provider.make_errored!('Something wrong!')
+
+          expect(page).to have_content('Something wrong!')
+        end
       end
 
       context 'when user filled form with invalid parameters' do
@@ -62,7 +82,8 @@ feature 'Clusters', :js do
     end
 
     context 'when user has a cluster and visits cluster index page' do
-      let!(:cluster) { create(:gcp_cluster, :created_on_gke, :with_kubernetes_service, project: project) }
+      let!(:cluster) { create(:cluster, :project, :provided_by_gcp) }
+      let(:project) { cluster.project }
 
       before do
         visit project_clusters_path(project)
@@ -70,7 +91,79 @@ feature 'Clusters', :js do
 
       it 'user sees an cluster details page' do
         expect(page).to have_button('Save')
-        expect(page.find(:css, '.cluster-name').value).to eq(cluster.gcp_cluster_name)
+        expect(page.find(:css, '.cluster-name').value).to eq(cluster.name)
+
+        # Application Installation buttons
+        page.within('.js-cluster-application-row-helm') do
+          expect(page.find(:css, '.js-cluster-application-install-button')['disabled']).to be_nil
+          expect(page.find(:css, '.js-cluster-application-install-button')).to have_content('Install')
+        end
+      end
+
+      context 'when user installs application: Helm Tiller' do
+        before do
+          allow(ClusterInstallAppWorker).to receive(:perform_async).and_return(nil)
+
+          page.within('.js-cluster-application-row-helm') do
+            page.find(:css, '.js-cluster-application-install-button').click
+          end
+        end
+
+        it 'user sees status transition' do
+          page.within('.js-cluster-application-row-helm') do
+            # FE sends request and gets the response, then the buttons is "Install"
+            expect(page.find(:css, '.js-cluster-application-install-button')['disabled']).to eq('true')
+            expect(page.find(:css, '.js-cluster-application-install-button')).to have_content('Install')
+
+            Clusters::Cluster.last.application_helm.make_installing!
+
+            # FE starts polling and update the buttons to "Installing"
+            expect(page.find(:css, '.js-cluster-application-install-button')['disabled']).to eq('true')
+            expect(page.find(:css, '.js-cluster-application-install-button')).to have_content('Installing')
+
+            Clusters::Cluster.last.application_helm.make_installed!
+
+            expect(page.find(:css, '.js-cluster-application-install-button')['disabled']).to eq('true')
+            expect(page.find(:css, '.js-cluster-application-install-button')).to have_content('Installed')
+          end
+
+          expect(page).to have_content('Helm Tiller was successfully installed on your cluster')
+        end
+      end
+
+      context 'when user installs application: Ingress' do
+        before do
+          allow(ClusterInstallAppWorker).to receive(:perform_async).and_return(nil)
+          # Helm Tiller needs to be installed before you can install Ingress
+          create(:cluster_applications_helm, :installed, cluster: cluster)
+
+          visit project_clusters_path(project)
+
+          page.within('.js-cluster-application-row-ingress') do
+            page.find(:css, '.js-cluster-application-install-button').click
+          end
+        end
+
+        it 'user sees status transition' do
+          page.within('.js-cluster-application-row-ingress') do
+            # FE sends request and gets the response, then the buttons is "Install"
+            expect(page.find(:css, '.js-cluster-application-install-button')['disabled']).to eq('true')
+            expect(page.find(:css, '.js-cluster-application-install-button')).to have_content('Install')
+
+            Clusters::Cluster.last.application_ingress.make_installing!
+
+            # FE starts polling and update the buttons to "Installing"
+            expect(page.find(:css, '.js-cluster-application-install-button')['disabled']).to eq('true')
+            expect(page.find(:css, '.js-cluster-application-install-button')).to have_content('Installing')
+
+            Clusters::Cluster.last.application_ingress.make_installed!
+
+            expect(page.find(:css, '.js-cluster-application-install-button')['disabled']).to eq('true')
+            expect(page.find(:css, '.js-cluster-application-install-button')).to have_content('Installed')
+          end
+
+          expect(page).to have_content('Ingress was successfully installed on your cluster')
+        end
       end
 
       context 'when user disables the cluster' do
@@ -93,7 +186,7 @@ feature 'Clusters', :js do
 
         it 'user sees creation form with the succeccful message' do
           expect(page).to have_content('Cluster integration was successfully removed.')
-          expect(page).to have_button('Create cluster')
+          expect(page).to have_link('Create on GKE')
         end
       end
     end
@@ -102,6 +195,8 @@ feature 'Clusters', :js do
   context 'when user has not signed in Google' do
     before do
       visit project_clusters_path(project)
+
+      click_link 'Create on GKE'
     end
 
     it 'user sees a login page' do
diff --git a/spec/features/projects/commit/mini_pipeline_graph_spec.rb b/spec/features/projects/commit/mini_pipeline_graph_spec.rb
index 807a2189cc4..91282063a8d 100644
--- a/spec/features/projects/commit/mini_pipeline_graph_spec.rb
+++ b/spec/features/projects/commit/mini_pipeline_graph_spec.rb
@@ -12,6 +12,13 @@ feature 'Mini Pipeline Graph in Commit View', :js do
     end
     let(:build) { create(:ci_build, pipeline: pipeline) }
 
+    it 'display icon with status' do
+      build.run
+      visit project_commit_path(project, project.commit.id)
+
+      expect(page).to have_selector('.ci-status-icon-running')
+    end
+
     it 'displays a mini pipeline graph' do
       build.run
       visit project_commit_path(project, project.commit.id)
diff --git a/spec/features/projects/import_export/test_project_export.tar.gz b/spec/features/projects/import_export/test_project_export.tar.gz
index 9614c72cdc3..fb6a3b8e733 100644
--- a/spec/features/projects/import_export/test_project_export.tar.gz
+++ b/spec/features/projects/import_export/test_project_export.tar.gz
diff --git a/spec/features/projects/members/list_spec.rb b/spec/features/projects/members/list_spec.rb
index 237c059e595..65b11a1d9e7 100644
--- a/spec/features/projects/members/list_spec.rb
+++ b/spec/features/projects/members/list_spec.rb
@@ -55,6 +55,22 @@ feature 'Project members list' do
     end
   end
 
+  scenario 'remove user from project', :js do
+    other_user = create(:user)
+    project.add_developer(other_user)
+
+    visit_members_page
+
+    accept_confirm do
+      find(:css, 'li.project_member', text: other_user.name).find(:css, 'a.btn-remove').click
+    end
+
+    wait_for_requests
+
+    expect(page).not_to have_content(other_user.name)
+    expect(project.users).not_to include(other_user)
+  end
+
   scenario 'invite user to project', :js do
     visit_members_page
 
diff --git a/spec/features/projects/pipelines/pipelines_spec.rb b/spec/features/projects/pipelines/pipelines_spec.rb
index fc689bbb486..50f8f13d261 100644
--- a/spec/features/projects/pipelines/pipelines_spec.rb
+++ b/spec/features/projects/pipelines/pipelines_spec.rb
@@ -56,31 +56,37 @@ describe 'Pipelines', :js do
         end
 
         it 'shows a tab for All pipelines and count' do
-          expect(page.find('.js-pipelines-tab-all a').text).to include('All')
+          expect(page.find('.js-pipelines-tab-all').text).to include('All')
           expect(page.find('.js-pipelines-tab-all .badge').text).to include('1')
         end
 
         it 'shows a tab for Pending pipelines and count' do
-          expect(page.find('.js-pipelines-tab-pending a').text).to include('Pending')
+          expect(page.find('.js-pipelines-tab-pending').text).to include('Pending')
           expect(page.find('.js-pipelines-tab-pending .badge').text).to include('0')
         end
 
         it 'shows a tab for Running pipelines and count' do
-          expect(page.find('.js-pipelines-tab-running a').text).to include('Running')
+          expect(page.find('.js-pipelines-tab-running').text).to include('Running')
           expect(page.find('.js-pipelines-tab-running .badge').text).to include('1')
         end
 
         it 'shows a tab for Finished pipelines and count' do
-          expect(page.find('.js-pipelines-tab-finished a').text).to include('Finished')
+          expect(page.find('.js-pipelines-tab-finished').text).to include('Finished')
           expect(page.find('.js-pipelines-tab-finished .badge').text).to include('0')
         end
 
         it 'shows a tab for Branches' do
-          expect(page.find('.js-pipelines-tab-branches a').text).to include('Branches')
+          expect(page.find('.js-pipelines-tab-branches').text).to include('Branches')
         end
 
         it 'shows a tab for Tags' do
-          expect(page.find('.js-pipelines-tab-tags a').text).to include('Tags')
+          expect(page.find('.js-pipelines-tab-tags').text).to include('Tags')
+        end
+
+        it 'updates content when tab is clicked' do
+          page.find('.js-pipelines-tab-pending').click
+          wait_for_requests
+          expect(page).to have_content('No pipelines to show.')
         end
       end
 
@@ -396,6 +402,14 @@ describe 'Pipelines', :js do
 
           expect(page).to have_selector('.gl-pagination .page', count: 2)
         end
+
+        it 'should show updated content' do
+          visit project_pipelines_path(project)
+          wait_for_requests
+          page.find('.js-next-button a').click
+
+          expect(page).to have_selector('.gl-pagination .page', count: 2)
+        end
       end
     end
 
diff --git a/spec/features/projects/project_settings_spec.rb b/spec/features/projects/project_settings_spec.rb
index 15a5cd9990b..a3ea778d401 100644
--- a/spec/features/projects/project_settings_spec.rb
+++ b/spec/features/projects/project_settings_spec.rb
@@ -144,7 +144,10 @@ describe 'Edit Project Settings' do
     specify 'the project is accessible via the new path' do
       transfer_project(project, group)
       new_path = namespace_project_path(group, project)
+
       visit new_path
+      wait_for_requests
+
       expect(current_path).to eq(new_path)
       expect(find('.breadcrumbs')).to have_content(project.name)
     end
@@ -153,7 +156,10 @@ describe 'Edit Project Settings' do
       old_path = project_path(project)
       transfer_project(project, group)
       new_path = namespace_project_path(group, project)
+
       visit old_path
+      wait_for_requests
+
       expect(current_path).to eq(new_path)
       expect(find('.breadcrumbs')).to have_content(project.name)
     end
diff --git a/spec/features/projects/tree/create_directory_spec.rb b/spec/features/projects/tree/create_directory_spec.rb
index 8ee7b9cf015..1686e7fa342 100644
--- a/spec/features/projects/tree/create_directory_spec.rb
+++ b/spec/features/projects/tree/create_directory_spec.rb
@@ -31,10 +31,5 @@ feature 'Multi-file editor new directory', :js do
     click_button('Commit 1 file')
 
     expect(page).to have_selector('td', text: 'commit message')
-
-    click_link('foldername')
-
-    expect(page).to have_selector('td', text: 'commit message', count: 2)
-    expect(page).to have_selector('td', text: '.gitkeep')
   end
 end
diff --git a/spec/features/projects/user_creates_project_spec.rb b/spec/features/projects/user_creates_project_spec.rb
index 4a152572502..f95469ad070 100644
--- a/spec/features/projects/user_creates_project_spec.rb
+++ b/spec/features/projects/user_creates_project_spec.rb
@@ -6,10 +6,11 @@ feature 'User creates a project', :js do
   before do
     sign_in(user)
     create(:personal_key, user: user)
-    visit(new_project_path)
   end
 
   it 'creates a new project' do
+    visit(new_project_path)
+
     fill_in(:project_path, with: 'Empty')
 
     page.within('#content-body') do
@@ -24,4 +25,32 @@ feature 'User creates a project', :js do
     expect(page).to have_content('git remote')
     expect(page).to have_content(project.url_to_repo)
   end
+
+  context 'in a subgroup they do not own', :nested_groups do
+    let(:parent) { create(:group) }
+    let!(:subgroup) { create(:group, parent: parent) }
+
+    before do
+      parent.add_owner(user)
+    end
+
+    it 'creates a new project' do
+      visit(new_project_path)
+
+      fill_in :project_path, with: 'a-subgroup-project'
+
+      page.find('.js-select-namespace').click
+      page.find("div[role='option']", text: subgroup.full_path).click
+
+      page.within('#content-body') do
+        click_button('Create project')
+      end
+
+      expect(page).to have_content("Project 'a-subgroup-project' was successfully created")
+
+      project = Project.last
+
+      expect(project.namespace).to eq(subgroup)
+    end
+  end
 end
diff --git a/spec/features/projects/user_transfers_a_project_spec.rb b/spec/features/projects/user_transfers_a_project_spec.rb
new file mode 100644
index 00000000000..78f72b644ff
--- /dev/null
+++ b/spec/features/projects/user_transfers_a_project_spec.rb
@@ -0,0 +1,49 @@
+require 'spec_helper'
+
+feature 'User transfers a project', :js do
+  let(:user) { create(:user) }
+  let(:project) { create(:project, :repository, namespace: user.namespace) }
+
+  before do
+    sign_in user
+  end
+
+  def transfer_project(project, group)
+    visit edit_project_path(project)
+
+    page.within('.js-project-transfer-form') do
+      page.find('.select2-container').click
+    end
+
+    page.find("div[role='option']", text: group.full_name).click
+
+    click_button('Transfer project')
+
+    fill_in 'confirm_name_input', with: project.name
+
+    click_button 'Confirm'
+
+    wait_for_requests
+  end
+
+  it 'allows transferring a project to a subgroup of a namespace' do
+    group = create(:group)
+    group.add_owner(user)
+
+    transfer_project(project, group)
+
+    expect(project.reload.namespace).to eq(group)
+  end
+
+  context 'when nested groups are available', :nested_groups do
+    it 'allows transferring a project to a subgroup' do
+      parent = create(:group)
+      parent.add_owner(user)
+      subgroup = create(:group, parent: parent)
+
+      transfer_project(project, subgroup)
+
+      expect(project.reload.namespace).to eq(subgroup)
+    end
+  end
+end
diff --git a/spec/finders/autocomplete_users_finder_spec.rb b/spec/finders/autocomplete_users_finder_spec.rb
index 684af74d750..dcf9111776e 100644
--- a/spec/finders/autocomplete_users_finder_spec.rb
+++ b/spec/finders/autocomplete_users_finder_spec.rb
@@ -42,6 +42,21 @@ describe AutocompleteUsersFinder do
       it { is_expected.to match_array([user1]) }
     end
 
+    context 'when passed a subgroup', :nested_groups do
+      let(:grandparent) { create(:group, :public) }
+      let(:parent) { create(:group, :public, parent: grandparent) }
+      let(:child) { create(:group, :public, parent: parent) }
+      let(:group) { parent }
+
+      let!(:grandparent_user) { create(:group_member, :developer, group: grandparent).user }
+      let!(:parent_user) { create(:group_member, :developer, group: parent).user }
+      let!(:child_user) { create(:group_member, :developer, group: child).user }
+
+      it 'includes users from parent groups as well' do
+        expect(subject).to match_array([grandparent_user, parent_user])
+      end
+    end
+
     it { is_expected.to match_array([user1, external_user, omniauth_user, current_user]) }
 
     context 'when filtered by search' do
diff --git a/spec/fixtures/api/schemas/cluster_status.json b/spec/fixtures/api/schemas/cluster_status.json
index 1f255a17881..489d563be2b 100644
--- a/spec/fixtures/api/schemas/cluster_status.json
+++ b/spec/fixtures/api/schemas/cluster_status.json
@@ -1,11 +1,38 @@
 {
   "type": "object",
   "required" : [
-    "status"
+    "status",
+    "applications"
   ],
   "properties" : {
     "status": { "type": "string" },
-    "status_reason": { "type": ["string", "null"] }
+    "status_reason": { "type": ["string", "null"] },
+    "applications": {
+      "type": "array",
+      "items": { "$ref": "#/definitions/application_status" }
+    }
   },
-  "additionalProperties": false
+  "additionalProperties": false,
+  "definitions": {
+    "application_status": {
+      "type": "object",
+      "additionalProperties": false,
+      "properties" : {
+        "name": { "type": "string" },
+        "status": {
+          "type": {
+            "enum": [
+              "installable",
+              "scheduled",
+              "installing",
+              "installed",
+              "errored"
+            ]
+          }
+        },
+        "status_reason": { "type": ["string", "null"] }
+      },
+      "required" : [ "name", "status" ]
+    }
+  }
 }
diff --git a/spec/fixtures/api/schemas/public_api/v4/merge_requests.json b/spec/fixtures/api/schemas/public_api/v4/merge_requests.json
index 5828be5255b..034509091a5 100644
--- a/spec/fixtures/api/schemas/public_api/v4/merge_requests.json
+++ b/spec/fixtures/api/schemas/public_api/v4/merge_requests.json
@@ -70,6 +70,7 @@
       "sha": { "type": "string" },
       "merge_commit_sha": { "type": ["string", "null"] },
       "user_notes_count": { "type": "integer" },
+      "changes_count": { "type": "string" },
       "should_remove_source_branch": { "type": ["boolean", "null"] },
       "force_remove_source_branch": { "type": ["boolean", "null"] },
       "discussion_locked": { "type": ["boolean", "null"] },
diff --git a/spec/fixtures/api/schemas/public_api/v4/pages_domain/basic.json b/spec/fixtures/api/schemas/public_api/v4/pages_domain/basic.json
new file mode 100644
index 00000000000..4ba6422406c
--- /dev/null
+++ b/spec/fixtures/api/schemas/public_api/v4/pages_domain/basic.json
@@ -0,0 +1,18 @@
+{
+  "type": "object",
+  "properties": {
+    "domain": { "type": "string" },
+    "url": { "type": "uri" },
+    "certificate_expiration": {
+      "type": "object",
+      "properties": {
+        "expired": { "type": "boolean" },
+        "expiration": { "type": "string" }
+      },
+      "required": ["expired", "expiration"],
+      "additionalProperties": false
+    }
+  },
+  "required": ["domain", "url"],
+  "additionalProperties": false
+}
diff --git a/spec/fixtures/api/schemas/public_api/v4/pages_domain/detail.json b/spec/fixtures/api/schemas/public_api/v4/pages_domain/detail.json
new file mode 100644
index 00000000000..08db8d47050
--- /dev/null
+++ b/spec/fixtures/api/schemas/public_api/v4/pages_domain/detail.json
@@ -0,0 +1,20 @@
+{
+  "type": "object",
+  "properties": {
+    "domain": { "type": "string" },
+    "url": { "type": "uri" },
+    "certificate": {
+      "type": "object",
+      "properties": {
+        "subject": { "type": "string" },
+        "expired": { "type": "boolean" },
+        "certificate": { "type": "string" },
+        "certificate_text": { "type": "string" }
+      },
+      "required": ["subject", "expired"],
+      "additionalProperties": false
+    }
+  },
+  "required": ["domain", "url"],
+  "additionalProperties": false
+}
diff --git a/spec/fixtures/api/schemas/public_api/v4/pages_domain_basics.json b/spec/fixtures/api/schemas/public_api/v4/pages_domain_basics.json
new file mode 100644
index 00000000000..c7d86de7d8e
--- /dev/null
+++ b/spec/fixtures/api/schemas/public_api/v4/pages_domain_basics.json
@@ -0,0 +1,4 @@
+{
+  "type": "array",
+  "items": { "$ref": "pages_domain/basic.json" }
+}
diff --git a/spec/fixtures/api/schemas/public_api/v4/pages_domains.json b/spec/fixtures/api/schemas/public_api/v4/pages_domains.json
index 0de1d0f1228..7c27218dc5a 100644
--- a/spec/fixtures/api/schemas/public_api/v4/pages_domains.json
+++ b/spec/fixtures/api/schemas/public_api/v4/pages_domains.json
@@ -1,23 +1,4 @@
 {
   "type": "array",
-  "items": {
-    "type": "object",
-    "properties": {
-      "domain": { "type": "string" },
-      "url": { "type": "uri" },
-      "certificate": {
-        "type": "object",
-        "properties": {
-          "subject": { "type": "string" },
-          "expired": { "type": "boolean" },
-          "certificate": { "type": "string" },
-          "certificate_text": { "type": "string" }
-        },
-        "required": ["subject", "expired"],
-        "additionalProperties": false
-      }
-    },
-    "required": ["domain", "url"],
-    "additionalProperties": false
-  }
+  "items": { "$ref": "pages_domain/detail.json" }
 }
diff --git a/spec/fixtures/clusters/sample_cert.pem b/spec/fixtures/clusters/sample_cert.pem
new file mode 100644
index 00000000000..e39a2b34416
--- /dev/null
+++ b/spec/fixtures/clusters/sample_cert.pem
@@ -0,0 +1,33 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/spec/helpers/application_helper_spec.rb b/spec/helpers/application_helper_spec.rb
index 7a241b02d28..5c5d53877a6 100644
--- a/spec/helpers/application_helper_spec.rb
+++ b/spec/helpers/application_helper_spec.rb
@@ -4,8 +4,6 @@ require 'spec_helper'
 describe ApplicationHelper do
   include UploadHelpers
 
-  let(:gitlab_host) { "http://#{Gitlab.config.gitlab.host}" }
-
   describe 'current_controller?' do
     it 'returns true when controller matches argument' do
       stub_controller_name('foo')
@@ -57,30 +55,11 @@ describe ApplicationHelper do
   end
 
   describe 'project_icon' do
-    let(:asset_host) { 'http://assets' }
-
     it 'returns an url for the avatar' do
       project = create(:project, :public, avatar: File.open(uploaded_image_temp_path))
-      avatar_url = "/uploads/-/system/project/avatar/#{project.id}/banana_sample.gif"
-
-      expect(helper.project_icon(project.full_path).to_s)
-        .to eq "<img data-src=\"#{avatar_url}\" class=\" lazy\" src=\"#{LazyImageTagHelper.placeholder_image}\" />"
-
-      allow(ActionController::Base).to receive(:asset_host).and_return(asset_host)
-      avatar_url = "#{asset_host}/uploads/-/system/project/avatar/#{project.id}/banana_sample.gif"
-
-      expect(helper.project_icon(project.full_path).to_s)
-        .to eq "<img data-src=\"#{avatar_url}\" class=\" lazy\" src=\"#{LazyImageTagHelper.placeholder_image}\" />"
-    end
-
-    it 'gives uploaded icon when present' do
-      project = create(:project)
 
-      allow_any_instance_of(Project).to receive(:avatar_in_git).and_return(true)
-
-      avatar_url = "#{gitlab_host}#{project_avatar_path(project)}"
       expect(helper.project_icon(project.full_path).to_s)
-        .to eq "<img data-src=\"#{avatar_url}\" class=\" lazy\" src=\"#{LazyImageTagHelper.placeholder_image}\" />"
+        .to eq "<img data-src=\"#{project.avatar.url}\" class=\" lazy\" src=\"#{LazyImageTagHelper.placeholder_image}\" />"
     end
   end
 
@@ -91,40 +70,7 @@ describe ApplicationHelper do
       context 'when there is a matching user' do
         it 'returns a relative URL for the avatar' do
           expect(helper.avatar_icon(user.email).to_s)
-            .to eq("/uploads/-/system/user/avatar/#{user.id}/banana_sample.gif")
-        end
-
-        context 'when an asset_host is set in the config' do
-          let(:asset_host) { 'http://assets' }
-
-          before do
-            allow(ActionController::Base).to receive(:asset_host).and_return(asset_host)
-          end
-
-          it 'returns an absolute URL on that asset host' do
-            expect(helper.avatar_icon(user.email, only_path: false).to_s)
-              .to eq("#{asset_host}/uploads/-/system/user/avatar/#{user.id}/banana_sample.gif")
-          end
-        end
-
-        context 'when only_path is set to false' do
-          it 'returns an absolute URL for the avatar' do
-            expect(helper.avatar_icon(user.email, only_path: false).to_s)
-              .to eq("#{gitlab_host}/uploads/-/system/user/avatar/#{user.id}/banana_sample.gif")
-          end
-        end
-
-        context 'when the GitLab instance is at a relative URL' do
-          before do
-            stub_config_setting(relative_url_root: '/gitlab')
-            # Must be stubbed after the stub above, and separately
-            stub_config_setting(url: Settings.send(:build_gitlab_url))
-          end
-
-          it 'returns a relative URL with the correct prefix' do
-            expect(helper.avatar_icon(user.email).to_s)
-              .to eq("/gitlab/uploads/-/system/user/avatar/#{user.id}/banana_sample.gif")
-          end
+            .to eq(user.avatar.url)
         end
       end
 
@@ -138,18 +84,9 @@ describe ApplicationHelper do
     end
 
     describe 'using a user' do
-      context 'when only_path is true' do
-        it 'returns a relative URL for the avatar' do
-          expect(helper.avatar_icon(user, only_path: true).to_s)
-            .to eq("/uploads/-/system/user/avatar/#{user.id}/banana_sample.gif")
-        end
-      end
-
-      context 'when only_path is false' do
-        it 'returns an absolute URL for the avatar' do
-          expect(helper.avatar_icon(user, only_path: false).to_s)
-            .to eq("#{gitlab_host}/uploads/-/system/user/avatar/#{user.id}/banana_sample.gif")
-        end
+      it 'returns a relative URL for the avatar' do
+        expect(helper.avatar_icon(user).to_s)
+          .to eq(user.avatar.url)
       end
     end
   end
diff --git a/spec/helpers/events_helper_spec.rb b/spec/helpers/events_helper_spec.rb
index d5536fcb22b..8a80b88da5d 100644
--- a/spec/helpers/events_helper_spec.rb
+++ b/spec/helpers/events_helper_spec.rb
@@ -1,96 +1,6 @@
 require 'spec_helper'
 
 describe EventsHelper do
-  describe '#event_note' do
-    let(:user) { build(:user) }
-
-    before do
-      allow(helper).to receive(:current_user).and_return(user)
-    end
-
-    it 'displays one line of plain text without alteration' do
-      input = 'A short, plain note'
-      expect(helper.event_note(input)).to match(input)
-      expect(helper.event_note(input)).not_to match(/\.\.\.\z/)
-    end
-
-    it 'displays inline code' do
-      input = 'A note with `inline code`'
-      expected = 'A note with <code>inline code</code>'
-
-      expect(helper.event_note(input)).to match(expected)
-    end
-
-    it 'truncates a note with multiple paragraphs' do
-      input = "Paragraph 1\n\nParagraph 2"
-      expected = 'Paragraph 1...'
-
-      expect(helper.event_note(input)).to match(expected)
-    end
-
-    it 'displays the first line of a code block' do
-      input = "```\nCode block\nwith two lines\n```"
-      expected = %r{<pre.+><code><span class="line">Code block\.\.\.</span>\n</code></pre>}
-
-      expect(helper.event_note(input)).to match(expected)
-    end
-
-    it 'truncates a single long line of text' do
-      text = 'The quick brown fox jumped over the lazy dog twice' # 50 chars
-      input = text * 4
-      expected = (text * 2).sub(/.{3}/, '...')
-
-      expect(helper.event_note(input)).to match(expected)
-    end
-
-    it 'preserves a link href when link text is truncated' do
-      text = 'The quick brown fox jumped over the lazy dog' # 44 chars
-      input = "#{text}#{text}#{text} " # 133 chars
-      link_url = 'http://example.com/foo/bar/baz' # 30 chars
-      input << link_url
-      expected_link_text = 'http://example...</a>'
-
-      expect(helper.event_note(input)).to match(link_url)
-      expect(helper.event_note(input)).to match(expected_link_text)
-    end
-
-    it 'preserves code color scheme' do
-      input = "```ruby\ndef test\n  'hello world'\nend\n```"
-      expected = "\n<pre class=\"code highlight js-syntax-highlight ruby\">" \
-        "<code><span class=\"line\"><span class=\"k\">def</span> <span class=\"nf\">test</span>...</span>\n" \
-        "</code></pre>"
-      expect(helper.event_note(input)).to eq(expected)
-    end
-
-    it 'preserves data-src for lazy images' do
-      input = "![ImageTest](/uploads/test.png)"
-      image_url = "data-src=\"/uploads/test.png\""
-      expect(helper.event_note(input)).to match(image_url)
-    end
-
-    context 'labels formatting' do
-      let(:input) { 'this should be ~label_1' }
-
-      def format_event_note(project)
-        create(:label, title: 'label_1', project: project)
-
-        helper.event_note(input, { project: project })
-      end
-
-      it 'preserves style attribute for a label that can be accessed by current_user' do
-        project = create(:project, :public)
-
-        expect(format_event_note(project)).to match(/span class=.*style=.*/)
-      end
-
-      it 'does not style a label that can not be accessed by current_user' do
-        project = create(:project, :private)
-
-        expect(format_event_note(project)).to eq("<p>#{input}</p>")
-      end
-    end
-  end
-
   describe '#event_commit_title' do
     let(:message) { "foo & bar " + "A" * 70 + "\n" + "B" * 80 }
     subject { helper.event_commit_title(message) }
diff --git a/spec/helpers/groups_helper_spec.rb b/spec/helpers/groups_helper_spec.rb
index 97f0ed4904e..32432ee1e81 100644
--- a/spec/helpers/groups_helper_spec.rb
+++ b/spec/helpers/groups_helper_spec.rb
@@ -3,8 +3,6 @@ require 'spec_helper'
 describe GroupsHelper do
   include ApplicationHelper
 
-  let(:asset_host) { 'http://assets' }
-
   describe 'group_icon' do
     avatar_file_path = File.join(Rails.root, 'spec', 'fixtures', 'banana_sample.gif')
 
@@ -13,16 +11,8 @@ describe GroupsHelper do
       group.avatar = fixture_file_upload(avatar_file_path)
       group.save!
 
-      avatar_url = "/uploads/-/system/group/avatar/#{group.id}/banana_sample.gif"
-
-      expect(helper.group_icon(group).to_s)
-        .to eq "<img data-src=\"#{avatar_url}\" class=\" lazy\" src=\"#{LazyImageTagHelper.placeholder_image}\" />"
-
-      allow(ActionController::Base).to receive(:asset_host).and_return(asset_host)
-      avatar_url = "#{asset_host}/uploads/-/system/group/avatar/#{group.id}/banana_sample.gif"
-
       expect(helper.group_icon(group).to_s)
-        .to eq "<img data-src=\"#{avatar_url}\" class=\" lazy\" src=\"#{LazyImageTagHelper.placeholder_image}\" />"
+        .to eq "<img data-src=\"#{group.avatar.url}\" class=\" lazy\" src=\"#{LazyImageTagHelper.placeholder_image}\" />"
     end
   end
 
@@ -34,25 +24,7 @@ describe GroupsHelper do
       group.avatar = fixture_file_upload(avatar_file_path)
       group.save!
       expect(group_icon_url(group.path).to_s)
-        .to match("/uploads/-/system/group/avatar/#{group.id}/banana_sample.gif")
-    end
-
-    it 'returns an CDN url for the avatar' do
-      allow(ActionController::Base).to receive(:asset_host).and_return(asset_host)
-      group = create(:group)
-      group.avatar = fixture_file_upload(avatar_file_path)
-      group.save!
-      expect(group_icon_url(group.path).to_s)
-        .to match("#{asset_host}/uploads/-/system/group/avatar/#{group.id}/banana_sample.gif")
-    end
-
-    it 'returns an based url for the avatar if private' do
-      allow(ActionController::Base).to receive(:asset_host).and_return(asset_host)
-      group = create(:group, :private)
-      group.avatar = fixture_file_upload(avatar_file_path)
-      group.save!
-      expect(group_icon_url(group.path).to_s)
-        .to match("/uploads/-/system/group/avatar/#{group.id}/banana_sample.gif")
+        .to match(group.avatar.url)
     end
 
     it 'gives default avatar_icon when no avatar is present' do
diff --git a/spec/helpers/icons_helper_spec.rb b/spec/helpers/icons_helper_spec.rb
index 3d79dac284f..2f23ed55d99 100644
--- a/spec/helpers/icons_helper_spec.rb
+++ b/spec/helpers/icons_helper_spec.rb
@@ -1,6 +1,8 @@
 require 'spec_helper'
 
 describe IconsHelper do
+  let(:icons_path) { ActionController::Base.helpers.image_path("icons.svg") }
+
   describe 'icon' do
     it 'returns aria-hidden by default' do
       star = icon('star')
@@ -16,22 +18,42 @@ describe IconsHelper do
     end
   end
 
+  describe 'sprite_icon_path' do
+    it 'returns relative path' do
+      expect(sprite_icon_path)
+        .to eq icons_path
+    end
+
+    context 'when an asset_host is set in the config it will return an absolute local URL' do
+      let(:asset_host) { 'http://assets' }
+
+      before do
+        allow(ActionController::Base).to receive(:asset_host).and_return(asset_host)
+      end
+
+      it 'returns an absolute URL on that asset host' do
+        expect(sprite_icon_path)
+          .to eq ActionController::Base.helpers.image_path("icons.svg", host: Gitlab.config.gitlab.url)
+      end
+    end
+  end
+
   describe 'sprite_icon' do
     icon_name = 'clock'
 
     it 'returns svg icon html' do
       expect(sprite_icon(icon_name).to_s)
-        .to eq "<svg><use xlink:href=\"/images/icons.svg##{icon_name}\"></use></svg>"
+        .to eq "<svg><use xlink:href=\"#{icons_path}##{icon_name}\"></use></svg>"
     end
 
     it 'returns svg icon html + size classes' do
       expect(sprite_icon(icon_name, size: 72).to_s)
-        .to eq "<svg class=\"s72\"><use xlink:href=\"/images/icons.svg##{icon_name}\"></use></svg>"
+        .to eq "<svg class=\"s72\"><use xlink:href=\"#{icons_path}##{icon_name}\"></use></svg>"
     end
 
     it 'returns svg icon html + size classes + additional class' do
       expect(sprite_icon(icon_name, size: 72, css_class: 'icon-danger').to_s)
-        .to eq "<svg class=\"s72 icon-danger\"><use xlink:href=\"/images/icons.svg##{icon_name}\"></use></svg>"
+        .to eq "<svg class=\"s72 icon-danger\"><use xlink:href=\"#{icons_path}##{icon_name}\"></use></svg>"
     end
   end
 
diff --git a/spec/helpers/labels_helper_spec.rb b/spec/helpers/labels_helper_spec.rb
index 36d6e495ed0..4ac4302adfd 100644
--- a/spec/helpers/labels_helper_spec.rb
+++ b/spec/helpers/labels_helper_spec.rb
@@ -24,7 +24,7 @@ describe LabelsHelper do
       let(:group) { build(:group, name: 'bar') }
 
       it 'links to group issues page' do
-        expect(link_to_label(label, subject: group)).to match %r{<a href="/groups/bar/issues\?label_name%5B%5D=#{label.name}">.*</a>}
+        expect(link_to_label(label, subject: group)).to match %r{<a href="/groups/bar/-/issues\?label_name%5B%5D=#{label.name}">.*</a>}
       end
     end
 
diff --git a/spec/helpers/markup_helper_spec.rb b/spec/helpers/markup_helper_spec.rb
index 03d706062b7..62ea6d48542 100644
--- a/spec/helpers/markup_helper_spec.rb
+++ b/spec/helpers/markup_helper_spec.rb
@@ -67,7 +67,7 @@ describe MarkupHelper do
 
     describe 'without redacted attribute' do
       it 'renders the markdown value' do
-        expect(Banzai).to receive(:render_field).with(commit, attribute).and_call_original
+        expect(Banzai).to receive(:render_field).with(commit, attribute, {}).and_call_original
 
         helper.markdown_field(commit, attribute)
       end
@@ -252,38 +252,141 @@ describe MarkupHelper do
   end
 
   describe '#first_line_in_markdown' do
-    it 'truncates Markdown properly' do
-      text = "@#{user.username}, can you look at this?\nHello world\n"
-      actual = first_line_in_markdown(text, 100, project: project)
+    shared_examples_for 'common markdown examples' do
+      let(:project_base) { build(:project, :repository) }
 
-      doc = Nokogiri::HTML.parse(actual)
+      it 'displays inline code' do
+        object = create_object('Text with `inline code`')
+        expected = 'Text with <code>inline code</code>'
 
-      # Make sure we didn't create invalid markup
-      expect(doc.errors).to be_empty
+        expect(first_line_in_markdown(object, attribute, 100, project: project)).to match(expected)
+      end
 
-      # Leading user link
-      expect(doc.css('a').length).to eq(1)
-      expect(doc.css('a')[0].attr('href')).to eq user_path(user)
-      expect(doc.css('a')[0].text).to eq "@#{user.username}"
+      it 'truncates the text with multiple paragraphs' do
+        object = create_object("Paragraph 1\n\nParagraph 2")
+        expected = 'Paragraph 1...'
 
-      expect(doc.content).to eq "@#{user.username}, can you look at this?..."
-    end
+        expect(first_line_in_markdown(object, attribute, 100, project: project)).to match(expected)
+      end
 
-    it 'truncates Markdown with emoji properly' do
-      text = "foo :wink:\nbar :grinning:"
-      actual = first_line_in_markdown(text, 100, project: project)
+      it 'displays the first line of a code block' do
+        object = create_object("```\nCode block\nwith two lines\n```")
+        expected = %r{<pre.+><code><span class="line">Code block\.\.\.</span>\n</code></pre>}
 
-      doc = Nokogiri::HTML.parse(actual)
+        expect(first_line_in_markdown(object, attribute, 100, project: project)).to match(expected)
+      end
 
-      # Make sure we didn't create invalid markup
-      # But also account for the 2 errors caused by the unknown `gl-emoji` elements
-      expect(doc.errors.length).to eq(2)
+      it 'truncates a single long line of text' do
+        text = 'The quick brown fox jumped over the lazy dog twice' # 50 chars
+        object = create_object(text * 4)
+        expected = (text * 2).sub(/.{3}/, '...')
+
+        expect(first_line_in_markdown(object, attribute, 150, project: project)).to match(expected)
+      end
+
+      it 'preserves a link href when link text is truncated' do
+        text = 'The quick brown fox jumped over the lazy dog' # 44 chars
+        input = "#{text}#{text}#{text} " # 133 chars
+        link_url = 'http://example.com/foo/bar/baz' # 30 chars
+        input << link_url
+        object = create_object(input)
+        expected_link_text = 'http://example...</a>'
+
+        expect(first_line_in_markdown(object, attribute, 150, project: project)).to match(link_url)
+        expect(first_line_in_markdown(object, attribute, 150, project: project)).to match(expected_link_text)
+      end
+
+      it 'preserves code color scheme' do
+        object = create_object("```ruby\ndef test\n  'hello world'\nend\n```")
+        expected = "\n<pre class=\"code highlight js-syntax-highlight ruby\">" \
+          "<code><span class=\"line\"><span class=\"k\">def</span> <span class=\"nf\">test</span>...</span>\n" \
+          "</code></pre>"
+
+        expect(first_line_in_markdown(object, attribute, 150, project: project)).to eq(expected)
+      end
+
+      it 'preserves data-src for lazy images' do
+        object = create_object("![ImageTest](/uploads/test.png)")
+        image_url = "data-src=\".*/uploads/test.png\""
+
+        expect(first_line_in_markdown(object, attribute, 150, project: project)).to match(image_url)
+      end
+
+      context 'labels formatting' do
+        let(:label_title) { 'this should be ~label_1' }
+
+        def create_and_format_label(project)
+          create(:label, title: 'label_1', project: project)
+          object = create_object(label_title, project: project)
 
-      expect(doc.css('gl-emoji').length).to eq(2)
-      expect(doc.css('gl-emoji')[0].attr('data-name')).to eq 'wink'
-      expect(doc.css('gl-emoji')[1].attr('data-name')).to eq 'grinning'
+          first_line_in_markdown(object, attribute, 150, project: project)
+        end
 
-      expect(doc.content).to eq "foo 😉\nbar 😀"
+        it 'preserves style attribute for a label that can be accessed by current_user' do
+          project = create(:project, :public)
+
+          expect(create_and_format_label(project)).to match(/span class=.*style=.*/)
+        end
+
+        it 'does not style a label that can not be accessed by current_user' do
+          project = create(:project, :private)
+
+          expect(create_and_format_label(project)).to eq("<p>#{label_title}</p>")
+        end
+      end
+
+      it 'truncates Markdown properly' do
+        object = create_object("@#{user.username}, can you look at this?\nHello world\n")
+        actual = first_line_in_markdown(object, attribute, 100, project: project)
+
+        doc = Nokogiri::HTML.parse(actual)
+
+        # Make sure we didn't create invalid markup
+        expect(doc.errors).to be_empty
+
+        # Leading user link
+        expect(doc.css('a').length).to eq(1)
+        expect(doc.css('a')[0].attr('href')).to eq user_path(user)
+        expect(doc.css('a')[0].text).to eq "@#{user.username}"
+
+        expect(doc.content).to eq "@#{user.username}, can you look at this?..."
+      end
+
+      it 'truncates Markdown with emoji properly' do
+        object = create_object("foo :wink:\nbar :grinning:")
+        actual = first_line_in_markdown(object, attribute, 100, project: project)
+
+        doc = Nokogiri::HTML.parse(actual)
+
+        # Make sure we didn't create invalid markup
+        # But also account for the 2 errors caused by the unknown `gl-emoji` elements
+        expect(doc.errors.length).to eq(2)
+
+        expect(doc.css('gl-emoji').length).to eq(2)
+        expect(doc.css('gl-emoji')[0].attr('data-name')).to eq 'wink'
+        expect(doc.css('gl-emoji')[1].attr('data-name')).to eq 'grinning'
+
+        expect(doc.content).to eq "foo 😉\nbar 😀"
+      end
+    end
+
+    context 'when the asked attribute can be redacted' do
+      include_examples 'common markdown examples' do
+        let(:attribute) { :note }
+        def create_object(title, project: project_base)
+          build(:note, note: title, project: project)
+        end
+      end
+    end
+
+    context 'when the asked attribute can not be redacted' do
+      include_examples 'common markdown examples' do
+        let(:attribute) { :body }
+        def create_object(title, project: project_base)
+          issue = build(:issue, title: title)
+          build(:todo, :done, project: project_base, author: user, target: issue)
+        end
+      end
     end
   end
 
diff --git a/spec/helpers/namespaces_helper_spec.rb b/spec/helpers/namespaces_helper_spec.rb
index 8365b3f5538..460d3b6a7e4 100644
--- a/spec/helpers/namespaces_helper_spec.rb
+++ b/spec/helpers/namespaces_helper_spec.rb
@@ -29,5 +29,30 @@ describe NamespacesHelper do
       expect(options).not_to include(admin_group.name)
       expect(options).to include(user_group.name)
     end
+
+    context 'when nested groups are available', :nested_groups do
+      it 'includes groups nested in groups the user can administer' do
+        allow(helper).to receive(:current_user).and_return(user)
+        child_group = create(:group, :private, parent: user_group)
+
+        options = helper.namespaces_options
+
+        expect(options).to include(child_group.name)
+      end
+
+      it 'orders the groups correctly' do
+        allow(helper).to receive(:current_user).and_return(user)
+        child_group = create(:group, :private, parent: user_group)
+        other_child = create(:group, :private, parent: user_group)
+        sub_child = create(:group, :private, parent: child_group)
+
+        expect(helper).to receive(:options_for_group)
+                            .with([user_group, child_group, sub_child, other_child], anything)
+                            .and_call_original
+        allow(helper).to receive(:options_for_group).and_call_original
+
+        helper.namespaces_options
+      end
+    end
   end
 end
diff --git a/spec/helpers/tree_helper_spec.rb b/spec/helpers/tree_helper_spec.rb
index d7b66e6f078..c358ccae9c3 100644
--- a/spec/helpers/tree_helper_spec.rb
+++ b/spec/helpers/tree_helper_spec.rb
@@ -1,10 +1,36 @@
 require 'spec_helper'
 
 describe TreeHelper do
+  let(:project) { create(:project, :repository) }
+  let(:repository) { project.repository }
+  let(:sha) { 'ce369011c189f62c815f5971d096b26759bab0d1' }
+
+  describe '.render_tree' do
+    before do
+      @id = sha
+      @project = project
+    end
+
+    it 'displays all entries without a warning' do
+      tree = repository.tree(sha, 'files')
+
+      html = render_tree(tree)
+
+      expect(html).not_to have_selector('.tree-truncated-warning')
+    end
+
+    it 'truncates entries and adds a warning' do
+      stub_const('TreeHelper::FILE_LIMIT', 1)
+      tree = repository.tree(sha, 'files')
+
+      html = render_tree(tree)
+
+      expect(html).to have_selector('.tree-truncated-warning', count: 1)
+      expect(html).to have_selector('.tree-item-file-name', count: 1)
+    end
+  end
+
   describe 'flatten_tree' do
-    let(:project) { create(:project, :repository) }
-    let(:repository) { project.repository }
-    let(:sha) { 'ce369011c189f62c815f5971d096b26759bab0d1' }
     let(:tree) { repository.tree(sha, 'files') }
     let(:root_path) { 'files' }
     let(:tree_item) { tree.entries.find { |entry| entry.path == path } }
diff --git a/spec/initializers/8_metrics_spec.rb b/spec/initializers/8_metrics_spec.rb
index 4e6052a9f80..80c77057065 100644
--- a/spec/initializers/8_metrics_spec.rb
+++ b/spec/initializers/8_metrics_spec.rb
@@ -3,7 +3,6 @@ require 'spec_helper'
 describe 'instrument_classes' do
   let(:config) { double(:config) }
 
-  let(:unicorn_sampler) { double(:unicorn_sampler) }
   let(:influx_sampler) { double(:influx_sampler) }
 
   before do
@@ -11,9 +10,7 @@ describe 'instrument_classes' do
     allow(config).to receive(:instrument_methods)
     allow(config).to receive(:instrument_instance_method)
     allow(config).to receive(:instrument_instance_methods)
-    allow(Gitlab::Metrics::UnicornSampler).to receive(:initialize_instance).and_return(unicorn_sampler)
-    allow(Gitlab::Metrics::InfluxSampler).to receive(:initialize_instance).and_return(influx_sampler)
-    allow(unicorn_sampler).to receive(:start)
+    allow(Gitlab::Metrics::Samplers::InfluxSampler).to receive(:initialize_instance).and_return(influx_sampler)
     allow(influx_sampler).to receive(:start)
     allow(Gitlab::Application).to receive(:configure)
   end
diff --git a/spec/javascripts/behaviors/copy_as_gfm_spec.js b/spec/javascripts/behaviors/copy_as_gfm_spec.js
new file mode 100644
index 00000000000..b8155144e2a
--- /dev/null
+++ b/spec/javascripts/behaviors/copy_as_gfm_spec.js
@@ -0,0 +1,47 @@
+import { CopyAsGFM } from '~/behaviors/copy_as_gfm';
+
+describe('CopyAsGFM', () => {
+  describe('CopyAsGFM.pasteGFM', () => {
+    function callPasteGFM() {
+      const e = {
+        originalEvent: {
+          clipboardData: {
+            getData(mimeType) {
+              // When GFM code is copied, we put the regular plain text
+              // on the clipboard as `text/plain`, and the GFM as `text/x-gfm`.
+              // This emulates the behavior of `getData` with that data.
+              if (mimeType === 'text/plain') {
+                return 'code';
+              }
+              if (mimeType === 'text/x-gfm') {
+                return '`code`';
+              }
+              return null;
+            },
+          },
+        },
+        preventDefault() {},
+      };
+
+      CopyAsGFM.pasteGFM(e);
+    }
+
+    it('wraps pasted code when not already in code tags', () => {
+      spyOn(window.gl.utils, 'insertText').and.callFake((el, textFunc) => {
+        const insertedText = textFunc('This is code: ', '');
+        expect(insertedText).toEqual('`code`');
+      });
+
+      callPasteGFM();
+    });
+
+    it('does not wrap pasted code when already in code tags', () => {
+      spyOn(window.gl.utils, 'insertText').and.callFake((el, textFunc) => {
+        const insertedText = textFunc('This is code: `', '`');
+        expect(insertedText).toEqual('code');
+      });
+
+      callPasteGFM();
+    });
+  });
+});
diff --git a/spec/javascripts/behaviors/gl_emoji/unicode_support_map_spec.js b/spec/javascripts/behaviors/gl_emoji/unicode_support_map_spec.js
index ec2c549e032..f96f20ed4a5 100644
--- a/spec/javascripts/behaviors/gl_emoji/unicode_support_map_spec.js
+++ b/spec/javascripts/behaviors/gl_emoji/unicode_support_map_spec.js
@@ -21,13 +21,18 @@ describe('Unicode Support Map', () => {
       });
 
       it('should call .getItem and .setItem', () => {
-        const allArgs = window.localStorage.setItem.calls.allArgs();
-
-        expect(window.localStorage.getItem).toHaveBeenCalledWith('gl-emoji-user-agent');
-        expect(allArgs[0][0]).toBe('gl-emoji-user-agent');
-        expect(allArgs[0][1]).toBe(navigator.userAgent);
-        expect(allArgs[1][0]).toBe('gl-emoji-unicode-support-map');
-        expect(allArgs[1][1]).toBe(stringSupportMap);
+        const getArgs = window.localStorage.getItem.calls.allArgs();
+        const setArgs = window.localStorage.setItem.calls.allArgs();
+
+        expect(getArgs[0][0]).toBe('gl-emoji-version');
+        expect(getArgs[1][0]).toBe('gl-emoji-user-agent');
+
+        expect(setArgs[0][0]).toBe('gl-emoji-version');
+        expect(setArgs[0][1]).toBe('0.2.0');
+        expect(setArgs[1][0]).toBe('gl-emoji-user-agent');
+        expect(setArgs[1][1]).toBe(navigator.userAgent);
+        expect(setArgs[2][0]).toBe('gl-emoji-unicode-support-map');
+        expect(setArgs[2][1]).toBe(stringSupportMap);
       });
     });
 
diff --git a/spec/javascripts/clusters/clusters_bundle_spec.js b/spec/javascripts/clusters/clusters_bundle_spec.js
new file mode 100644
index 00000000000..027e8001053
--- /dev/null
+++ b/spec/javascripts/clusters/clusters_bundle_spec.js
@@ -0,0 +1,257 @@
+import Clusters from '~/clusters/clusters_bundle';
+import {
+  APPLICATION_INSTALLABLE,
+  APPLICATION_INSTALLING,
+  APPLICATION_INSTALLED,
+  REQUEST_LOADING,
+  REQUEST_SUCCESS,
+  REQUEST_FAILURE,
+} from '~/clusters/constants';
+import getSetTimeoutPromise from '../helpers/set_timeout_promise_helper';
+
+describe('Clusters', () => {
+  let cluster;
+  preloadFixtures('clusters/show_cluster.html.raw');
+
+  beforeEach(() => {
+    loadFixtures('clusters/show_cluster.html.raw');
+    cluster = new Clusters();
+  });
+
+  afterEach(() => {
+    cluster.destroy();
+  });
+
+  describe('toggle', () => {
+    it('should update the button and the input field on click', () => {
+      cluster.toggleButton.click();
+
+      expect(
+        cluster.toggleButton.classList,
+      ).not.toContain('checked');
+
+      expect(
+        cluster.toggleInput.getAttribute('value'),
+      ).toEqual('false');
+    });
+  });
+
+  describe('checkForNewInstalls', () => {
+    const INITIAL_APP_MAP = {
+      helm: { status: null, title: 'Helm Tiller' },
+      ingress: { status: null, title: 'Ingress' },
+      runner: { status: null, title: 'GitLab Runner' },
+    };
+
+    it('does not show alert when things transition from initial null state to something', () => {
+      cluster.checkForNewInstalls(INITIAL_APP_MAP, {
+        ...INITIAL_APP_MAP,
+        helm: { status: APPLICATION_INSTALLABLE, title: 'Helm Tiller' },
+      });
+
+      expect(document.querySelector('.js-cluster-application-notice .flash-text')).toBeNull();
+    });
+
+    it('shows an alert when something gets newly installed', () => {
+      cluster.checkForNewInstalls({
+        ...INITIAL_APP_MAP,
+        helm: { status: APPLICATION_INSTALLING, title: 'Helm Tiller' },
+      }, {
+        ...INITIAL_APP_MAP,
+        helm: { status: APPLICATION_INSTALLED, title: 'Helm Tiller' },
+      });
+
+      expect(document.querySelector('.js-cluster-application-notice .flash-text')).toBeDefined();
+      expect(document.querySelector('.js-cluster-application-notice .flash-text').textContent.trim()).toEqual('Helm Tiller was successfully installed on your cluster');
+    });
+
+    it('shows an alert when multiple things gets newly installed', () => {
+      cluster.checkForNewInstalls({
+        ...INITIAL_APP_MAP,
+        helm: { status: APPLICATION_INSTALLING, title: 'Helm Tiller' },
+        ingress: { status: APPLICATION_INSTALLABLE, title: 'Ingress' },
+      }, {
+        ...INITIAL_APP_MAP,
+        helm: { status: APPLICATION_INSTALLED, title: 'Helm Tiller' },
+        ingress: { status: APPLICATION_INSTALLED, title: 'Ingress' },
+      });
+
+      expect(document.querySelector('.js-cluster-application-notice .flash-text')).toBeDefined();
+      expect(document.querySelector('.js-cluster-application-notice .flash-text').textContent.trim()).toEqual('Helm Tiller, Ingress was successfully installed on your cluster');
+    });
+  });
+
+  describe('updateContainer', () => {
+    describe('when creating cluster', () => {
+      it('should show the creating container', () => {
+        cluster.updateContainer(null, 'creating');
+
+        expect(
+          cluster.creatingContainer.classList.contains('hidden'),
+        ).toBeFalsy();
+        expect(
+          cluster.successContainer.classList.contains('hidden'),
+        ).toBeTruthy();
+        expect(
+          cluster.errorContainer.classList.contains('hidden'),
+        ).toBeTruthy();
+      });
+
+      it('should continue to show `creating` banner with subsequent updates of the same status', () => {
+        cluster.updateContainer('creating', 'creating');
+
+        expect(
+          cluster.creatingContainer.classList.contains('hidden'),
+        ).toBeFalsy();
+        expect(
+          cluster.successContainer.classList.contains('hidden'),
+        ).toBeTruthy();
+        expect(
+          cluster.errorContainer.classList.contains('hidden'),
+        ).toBeTruthy();
+      });
+    });
+
+    describe('when cluster is created', () => {
+      it('should show the success container', () => {
+        cluster.updateContainer(null, 'created');
+
+        expect(
+          cluster.creatingContainer.classList.contains('hidden'),
+        ).toBeTruthy();
+        expect(
+          cluster.successContainer.classList.contains('hidden'),
+        ).toBeFalsy();
+        expect(
+          cluster.errorContainer.classList.contains('hidden'),
+        ).toBeTruthy();
+      });
+
+      it('should not show a banner when status is already `created`', () => {
+        cluster.updateContainer('created', 'created');
+
+        expect(
+          cluster.creatingContainer.classList.contains('hidden'),
+        ).toBeTruthy();
+        expect(
+          cluster.successContainer.classList.contains('hidden'),
+        ).toBeTruthy();
+        expect(
+          cluster.errorContainer.classList.contains('hidden'),
+        ).toBeTruthy();
+      });
+    });
+
+    describe('when cluster has error', () => {
+      it('should show the error container', () => {
+        cluster.updateContainer(null, 'errored', 'this is an error');
+
+        expect(
+          cluster.creatingContainer.classList.contains('hidden'),
+        ).toBeTruthy();
+        expect(
+          cluster.successContainer.classList.contains('hidden'),
+        ).toBeTruthy();
+        expect(
+          cluster.errorContainer.classList.contains('hidden'),
+        ).toBeFalsy();
+
+        expect(
+          cluster.errorReasonContainer.textContent,
+        ).toContain('this is an error');
+      });
+
+      it('should show `error` banner when previously `creating`', () => {
+        cluster.updateContainer('creating', 'errored');
+
+        expect(
+          cluster.creatingContainer.classList.contains('hidden'),
+        ).toBeTruthy();
+        expect(
+          cluster.successContainer.classList.contains('hidden'),
+        ).toBeTruthy();
+        expect(
+          cluster.errorContainer.classList.contains('hidden'),
+        ).toBeFalsy();
+      });
+    });
+  });
+
+  describe('installApplication', () => {
+    it('tries to install helm', (done) => {
+      spyOn(cluster.service, 'installApplication').and.returnValue(Promise.resolve());
+      expect(cluster.store.state.applications.helm.requestStatus).toEqual(null);
+
+      cluster.installApplication('helm');
+
+      expect(cluster.store.state.applications.helm.requestStatus).toEqual(REQUEST_LOADING);
+      expect(cluster.store.state.applications.helm.requestReason).toEqual(null);
+      expect(cluster.service.installApplication).toHaveBeenCalledWith('helm');
+
+      getSetTimeoutPromise()
+        .then(() => {
+          expect(cluster.store.state.applications.helm.requestStatus).toEqual(REQUEST_SUCCESS);
+          expect(cluster.store.state.applications.helm.requestReason).toEqual(null);
+        })
+        .then(done)
+        .catch(done.fail);
+    });
+
+    it('tries to install ingress', (done) => {
+      spyOn(cluster.service, 'installApplication').and.returnValue(Promise.resolve());
+      expect(cluster.store.state.applications.ingress.requestStatus).toEqual(null);
+
+      cluster.installApplication('ingress');
+
+      expect(cluster.store.state.applications.ingress.requestStatus).toEqual(REQUEST_LOADING);
+      expect(cluster.store.state.applications.ingress.requestReason).toEqual(null);
+      expect(cluster.service.installApplication).toHaveBeenCalledWith('ingress');
+
+      getSetTimeoutPromise()
+        .then(() => {
+          expect(cluster.store.state.applications.ingress.requestStatus).toEqual(REQUEST_SUCCESS);
+          expect(cluster.store.state.applications.ingress.requestReason).toEqual(null);
+        })
+        .then(done)
+        .catch(done.fail);
+    });
+
+    it('tries to install runner', (done) => {
+      spyOn(cluster.service, 'installApplication').and.returnValue(Promise.resolve());
+      expect(cluster.store.state.applications.runner.requestStatus).toEqual(null);
+
+      cluster.installApplication('runner');
+
+      expect(cluster.store.state.applications.runner.requestStatus).toEqual(REQUEST_LOADING);
+      expect(cluster.store.state.applications.runner.requestReason).toEqual(null);
+      expect(cluster.service.installApplication).toHaveBeenCalledWith('runner');
+
+      getSetTimeoutPromise()
+        .then(() => {
+          expect(cluster.store.state.applications.runner.requestStatus).toEqual(REQUEST_SUCCESS);
+          expect(cluster.store.state.applications.runner.requestReason).toEqual(null);
+        })
+        .then(done)
+        .catch(done.fail);
+    });
+
+    it('sets error request status when the request fails', (done) => {
+      spyOn(cluster.service, 'installApplication').and.returnValue(Promise.reject(new Error('STUBBED ERROR')));
+      expect(cluster.store.state.applications.helm.requestStatus).toEqual(null);
+
+      cluster.installApplication('helm');
+
+      expect(cluster.store.state.applications.helm.requestStatus).toEqual(REQUEST_LOADING);
+      expect(cluster.store.state.applications.helm.requestReason).toEqual(null);
+      expect(cluster.service.installApplication).toHaveBeenCalled();
+
+      getSetTimeoutPromise()
+        .then(() => {
+          expect(cluster.store.state.applications.helm.requestStatus).toEqual(REQUEST_FAILURE);
+          expect(cluster.store.state.applications.helm.requestReason).toBeDefined();
+        })
+        .then(done)
+        .catch(done.fail);
+    });
+  });
+});
diff --git a/spec/javascripts/clusters/components/application_row_spec.js b/spec/javascripts/clusters/components/application_row_spec.js
new file mode 100644
index 00000000000..e671c18e1a5
--- /dev/null
+++ b/spec/javascripts/clusters/components/application_row_spec.js
@@ -0,0 +1,237 @@
+import Vue from 'vue';
+import eventHub from '~/clusters/event_hub';
+import {
+  APPLICATION_NOT_INSTALLABLE,
+  APPLICATION_SCHEDULED,
+  APPLICATION_INSTALLABLE,
+  APPLICATION_INSTALLING,
+  APPLICATION_INSTALLED,
+  APPLICATION_ERROR,
+  REQUEST_LOADING,
+  REQUEST_SUCCESS,
+  REQUEST_FAILURE,
+} from '~/clusters/constants';
+import applicationRow from '~/clusters/components/application_row.vue';
+import mountComponent from '../../helpers/vue_mount_component_helper';
+import { DEFAULT_APPLICATION_STATE } from '../services/mock_data';
+
+describe('Application Row', () => {
+  let vm;
+  let ApplicationRow;
+
+  beforeEach(() => {
+    ApplicationRow = Vue.extend(applicationRow);
+  });
+
+  afterEach(() => {
+    vm.$destroy();
+  });
+
+  describe('Title', () => {
+    it('shows title', () => {
+      vm = mountComponent(ApplicationRow, {
+        ...DEFAULT_APPLICATION_STATE,
+        titleLink: null,
+      });
+      const title = vm.$el.querySelector('.js-cluster-application-title');
+
+      expect(title.tagName).toEqual('SPAN');
+      expect(title.textContent.trim()).toEqual(DEFAULT_APPLICATION_STATE.title);
+    });
+
+    it('shows title link', () => {
+      expect(DEFAULT_APPLICATION_STATE.titleLink).toBeDefined();
+
+      vm = mountComponent(ApplicationRow, {
+        ...DEFAULT_APPLICATION_STATE,
+      });
+      const title = vm.$el.querySelector('.js-cluster-application-title');
+
+      expect(title.tagName).toEqual('A');
+      expect(title.textContent.trim()).toEqual(DEFAULT_APPLICATION_STATE.title);
+    });
+  });
+
+  describe('Install button', () => {
+    it('has indeterminate state on page load', () => {
+      vm = mountComponent(ApplicationRow, {
+        ...DEFAULT_APPLICATION_STATE,
+        status: null,
+      });
+
+      expect(vm.installButtonLabel).toBeUndefined();
+    });
+
+    it('has disabled "Install" when APPLICATION_NOT_INSTALLABLE', () => {
+      vm = mountComponent(ApplicationRow, {
+        ...DEFAULT_APPLICATION_STATE,
+        status: APPLICATION_NOT_INSTALLABLE,
+      });
+
+      expect(vm.installButtonLabel).toEqual('Install');
+      expect(vm.installButtonLoading).toEqual(false);
+      expect(vm.installButtonDisabled).toEqual(true);
+    });
+
+    it('has enabled "Install" when APPLICATION_INSTALLABLE', () => {
+      vm = mountComponent(ApplicationRow, {
+        ...DEFAULT_APPLICATION_STATE,
+        status: APPLICATION_INSTALLABLE,
+      });
+
+      expect(vm.installButtonLabel).toEqual('Install');
+      expect(vm.installButtonLoading).toEqual(false);
+      expect(vm.installButtonDisabled).toEqual(false);
+    });
+
+    it('has loading "Installing" when APPLICATION_SCHEDULED', () => {
+      vm = mountComponent(ApplicationRow, {
+        ...DEFAULT_APPLICATION_STATE,
+        status: APPLICATION_SCHEDULED,
+      });
+
+      expect(vm.installButtonLabel).toEqual('Installing');
+      expect(vm.installButtonLoading).toEqual(true);
+      expect(vm.installButtonDisabled).toEqual(true);
+    });
+
+    it('has loading "Installing" when APPLICATION_INSTALLING', () => {
+      vm = mountComponent(ApplicationRow, {
+        ...DEFAULT_APPLICATION_STATE,
+        status: APPLICATION_INSTALLING,
+      });
+
+      expect(vm.installButtonLabel).toEqual('Installing');
+      expect(vm.installButtonLoading).toEqual(true);
+      expect(vm.installButtonDisabled).toEqual(true);
+    });
+
+    it('has disabled "Installed" when APPLICATION_INSTALLED', () => {
+      vm = mountComponent(ApplicationRow, {
+        ...DEFAULT_APPLICATION_STATE,
+        status: APPLICATION_INSTALLED,
+      });
+
+      expect(vm.installButtonLabel).toEqual('Installed');
+      expect(vm.installButtonLoading).toEqual(false);
+      expect(vm.installButtonDisabled).toEqual(true);
+    });
+
+    it('has enabled "Install" when APPLICATION_ERROR', () => {
+      vm = mountComponent(ApplicationRow, {
+        ...DEFAULT_APPLICATION_STATE,
+        status: APPLICATION_ERROR,
+      });
+
+      expect(vm.installButtonLabel).toEqual('Install');
+      expect(vm.installButtonLoading).toEqual(false);
+      expect(vm.installButtonDisabled).toEqual(false);
+    });
+
+    it('has loading "Install" when REQUEST_LOADING', () => {
+      vm = mountComponent(ApplicationRow, {
+        ...DEFAULT_APPLICATION_STATE,
+        status: APPLICATION_INSTALLABLE,
+        requestStatus: REQUEST_LOADING,
+      });
+
+      expect(vm.installButtonLabel).toEqual('Install');
+      expect(vm.installButtonLoading).toEqual(true);
+      expect(vm.installButtonDisabled).toEqual(true);
+    });
+
+    it('has disabled "Install" when REQUEST_SUCCESS', () => {
+      vm = mountComponent(ApplicationRow, {
+        ...DEFAULT_APPLICATION_STATE,
+        status: APPLICATION_INSTALLABLE,
+        requestStatus: REQUEST_SUCCESS,
+      });
+
+      expect(vm.installButtonLabel).toEqual('Install');
+      expect(vm.installButtonLoading).toEqual(false);
+      expect(vm.installButtonDisabled).toEqual(true);
+    });
+
+    it('has enabled "Install" when REQUEST_FAILURE (so you can try installing again)', () => {
+      vm = mountComponent(ApplicationRow, {
+        ...DEFAULT_APPLICATION_STATE,
+        status: APPLICATION_INSTALLABLE,
+        requestStatus: REQUEST_FAILURE,
+      });
+
+      expect(vm.installButtonLabel).toEqual('Install');
+      expect(vm.installButtonLoading).toEqual(false);
+      expect(vm.installButtonDisabled).toEqual(false);
+    });
+
+    it('clicking install button emits event', () => {
+      spyOn(eventHub, '$emit');
+      vm = mountComponent(ApplicationRow, {
+        ...DEFAULT_APPLICATION_STATE,
+        status: APPLICATION_INSTALLABLE,
+      });
+      const installButton = vm.$el.querySelector('.js-cluster-application-install-button');
+
+      installButton.click();
+
+      expect(eventHub.$emit).toHaveBeenCalledWith('installApplication', DEFAULT_APPLICATION_STATE.id);
+    });
+
+    it('clicking disabled install button emits nothing', () => {
+      spyOn(eventHub, '$emit');
+      vm = mountComponent(ApplicationRow, {
+        ...DEFAULT_APPLICATION_STATE,
+        status: APPLICATION_INSTALLING,
+      });
+      const installButton = vm.$el.querySelector('.js-cluster-application-install-button');
+
+      expect(vm.installButtonDisabled).toEqual(true);
+
+      installButton.click();
+
+      expect(eventHub.$emit).not.toHaveBeenCalled();
+    });
+  });
+
+  describe('Error block', () => {
+    it('does not show error block when there is no error', () => {
+      vm = mountComponent(ApplicationRow, {
+        ...DEFAULT_APPLICATION_STATE,
+        status: null,
+        requestStatus: null,
+      });
+      const generalErrorMessage = vm.$el.querySelector('.js-cluster-application-general-error-message');
+
+      expect(generalErrorMessage).toBeNull();
+    });
+
+    it('shows status reason when APPLICATION_ERROR', () => {
+      const statusReason = 'We broke it 0.0';
+      vm = mountComponent(ApplicationRow, {
+        ...DEFAULT_APPLICATION_STATE,
+        status: APPLICATION_ERROR,
+        statusReason,
+      });
+      const generalErrorMessage = vm.$el.querySelector('.js-cluster-application-general-error-message');
+      const statusErrorMessage = vm.$el.querySelector('.js-cluster-application-status-error-message');
+
+      expect(generalErrorMessage.textContent.trim()).toEqual(`Something went wrong while installing ${DEFAULT_APPLICATION_STATE.title}`);
+      expect(statusErrorMessage.textContent.trim()).toEqual(statusReason);
+    });
+
+    it('shows request reason when REQUEST_FAILURE', () => {
+      const requestReason = 'We broke thre request 0.0';
+      vm = mountComponent(ApplicationRow, {
+        ...DEFAULT_APPLICATION_STATE,
+        status: APPLICATION_INSTALLABLE,
+        requestStatus: REQUEST_FAILURE,
+        requestReason,
+      });
+      const generalErrorMessage = vm.$el.querySelector('.js-cluster-application-general-error-message');
+      const requestErrorMessage = vm.$el.querySelector('.js-cluster-application-request-error-message');
+
+      expect(generalErrorMessage.textContent.trim()).toEqual(`Something went wrong while installing ${DEFAULT_APPLICATION_STATE.title}`);
+      expect(requestErrorMessage.textContent.trim()).toEqual(requestReason);
+    });
+  });
+});
diff --git a/spec/javascripts/clusters/components/applications_spec.js b/spec/javascripts/clusters/components/applications_spec.js
new file mode 100644
index 00000000000..7460da031c4
--- /dev/null
+++ b/spec/javascripts/clusters/components/applications_spec.js
@@ -0,0 +1,42 @@
+import Vue from 'vue';
+import applications from '~/clusters/components/applications.vue';
+import mountComponent from '../../helpers/vue_mount_component_helper';
+
+describe('Applications', () => {
+  let vm;
+  let Applications;
+
+  beforeEach(() => {
+    Applications = Vue.extend(applications);
+  });
+
+  afterEach(() => {
+    vm.$destroy();
+  });
+
+  describe('', () => {
+    beforeEach(() => {
+      vm = mountComponent(Applications, {
+        applications: {
+          helm: { title: 'Helm Tiller' },
+          ingress: { title: 'Ingress' },
+          runner: { title: 'GitLab Runner' },
+        },
+      });
+    });
+
+    it('renders a row for Helm Tiller', () => {
+      expect(vm.$el.querySelector('.js-cluster-application-row-helm')).toBeDefined();
+    });
+
+    it('renders a row for Ingress', () => {
+      expect(vm.$el.querySelector('.js-cluster-application-row-ingress')).toBeDefined();
+    });
+
+    /* * /
+    it('renders a row for GitLab Runner', () => {
+      expect(vm.$el.querySelector('.js-cluster-application-row-runner')).toBeDefined();
+    });
+    /* */
+  });
+});
diff --git a/spec/javascripts/clusters/services/mock_data.js b/spec/javascripts/clusters/services/mock_data.js
new file mode 100644
index 00000000000..af6b6a73819
--- /dev/null
+++ b/spec/javascripts/clusters/services/mock_data.js
@@ -0,0 +1,50 @@
+import {
+  APPLICATION_INSTALLABLE,
+  APPLICATION_INSTALLING,
+  APPLICATION_ERROR,
+} from '~/clusters/constants';
+
+const CLUSTERS_MOCK_DATA = {
+  GET: {
+    '/gitlab-org/gitlab-shell/clusters/1/status.json': {
+      data: {
+        status: 'errored',
+        status_reason: 'Failed to request to CloudPlatform.',
+        applications: [{
+          name: 'helm',
+          status: APPLICATION_INSTALLABLE,
+          status_reason: null,
+        }, {
+          name: 'ingress',
+          status: APPLICATION_ERROR,
+          status_reason: 'Cannot connect',
+        }, {
+          name: 'runner',
+          status: APPLICATION_INSTALLING,
+          status_reason: null,
+        }],
+      },
+    },
+  },
+  POST: {
+    '/gitlab-org/gitlab-shell/clusters/1/applications/helm': { },
+    '/gitlab-org/gitlab-shell/clusters/1/applications/ingress': { },
+    '/gitlab-org/gitlab-shell/clusters/1/applications/runner': { },
+  },
+};
+
+const DEFAULT_APPLICATION_STATE = {
+  id: 'some-app',
+  title: 'My App',
+  titleLink: 'https://about.gitlab.com/',
+  description: 'Some description about this interesting application!',
+  status: null,
+  statusReason: null,
+  requestStatus: null,
+  requestReason: null,
+};
+
+export {
+  CLUSTERS_MOCK_DATA,
+  DEFAULT_APPLICATION_STATE,
+};
diff --git a/spec/javascripts/clusters/stores/clusters_store_spec.js b/spec/javascripts/clusters/stores/clusters_store_spec.js
new file mode 100644
index 00000000000..cb8b3d38e2e
--- /dev/null
+++ b/spec/javascripts/clusters/stores/clusters_store_spec.js
@@ -0,0 +1,89 @@
+import ClustersStore from '~/clusters/stores/clusters_store';
+import { APPLICATION_INSTALLING } from '~/clusters/constants';
+import { CLUSTERS_MOCK_DATA } from '../services/mock_data';
+
+describe('Clusters Store', () => {
+  let store;
+
+  beforeEach(() => {
+    store = new ClustersStore();
+  });
+
+  describe('updateStatus', () => {
+    it('should store new status', () => {
+      expect(store.state.status).toEqual(null);
+
+      const newStatus = 'errored';
+      store.updateStatus(newStatus);
+
+      expect(store.state.status).toEqual(newStatus);
+    });
+  });
+
+  describe('updateStatusReason', () => {
+    it('should store new reason', () => {
+      expect(store.state.statusReason).toEqual(null);
+
+      const newReason = 'Something went wrong!';
+      store.updateStatusReason(newReason);
+
+      expect(store.state.statusReason).toEqual(newReason);
+    });
+  });
+
+  describe('updateAppProperty', () => {
+    it('should store new request status', () => {
+      expect(store.state.applications.helm.requestStatus).toEqual(null);
+
+      const newStatus = APPLICATION_INSTALLING;
+      store.updateAppProperty('helm', 'requestStatus', newStatus);
+
+      expect(store.state.applications.helm.requestStatus).toEqual(newStatus);
+    });
+
+    it('should store new request reason', () => {
+      expect(store.state.applications.helm.requestReason).toEqual(null);
+
+      const newReason = 'We broke it.';
+      store.updateAppProperty('helm', 'requestReason', newReason);
+
+      expect(store.state.applications.helm.requestReason).toEqual(newReason);
+    });
+  });
+
+  describe('updateStateFromServer', () => {
+    it('should store new polling data from server', () => {
+      const mockResponseData = CLUSTERS_MOCK_DATA.GET['/gitlab-org/gitlab-shell/clusters/1/status.json'].data;
+      store.updateStateFromServer(mockResponseData);
+
+      expect(store.state).toEqual({
+        helpPath: null,
+        status: mockResponseData.status,
+        statusReason: mockResponseData.status_reason,
+        applications: {
+          helm: {
+            title: 'Helm Tiller',
+            status: mockResponseData.applications[0].status,
+            statusReason: mockResponseData.applications[0].status_reason,
+            requestStatus: null,
+            requestReason: null,
+          },
+          ingress: {
+            title: 'Ingress',
+            status: mockResponseData.applications[1].status,
+            statusReason: mockResponseData.applications[1].status_reason,
+            requestStatus: null,
+            requestReason: null,
+          },
+          runner: {
+            title: 'GitLab Runner',
+            status: mockResponseData.applications[2].status,
+            statusReason: mockResponseData.applications[2].status_reason,
+            requestStatus: null,
+            requestReason: null,
+          },
+        },
+      });
+    });
+  });
+});
diff --git a/spec/javascripts/clusters_spec.js b/spec/javascripts/clusters_spec.js
deleted file mode 100644
index eb1cd6eb804..00000000000
--- a/spec/javascripts/clusters_spec.js
+++ /dev/null
@@ -1,79 +0,0 @@
-import Clusters from '~/clusters';
-
-describe('Clusters', () => {
-  let cluster;
-  preloadFixtures('clusters/show_cluster.html.raw');
-
-  beforeEach(() => {
-    loadFixtures('clusters/show_cluster.html.raw');
-    cluster = new Clusters();
-  });
-
-  describe('toggle', () => {
-    it('should update the button and the input field on click', () => {
-      cluster.toggleButton.click();
-
-      expect(
-        cluster.toggleButton.classList,
-      ).not.toContain('checked');
-
-      expect(
-        cluster.toggleInput.getAttribute('value'),
-      ).toEqual('false');
-    });
-  });
-
-  describe('updateContainer', () => {
-    describe('when creating cluster', () => {
-      it('should show the creating container', () => {
-        cluster.updateContainer('creating');
-
-        expect(
-          cluster.creatingContainer.classList.contains('hidden'),
-        ).toBeFalsy();
-        expect(
-          cluster.successContainer.classList.contains('hidden'),
-        ).toBeTruthy();
-        expect(
-          cluster.errorContainer.classList.contains('hidden'),
-        ).toBeTruthy();
-      });
-    });
-
-    describe('when cluster is created', () => {
-      it('should show the success container', () => {
-        cluster.updateContainer('created');
-
-        expect(
-          cluster.creatingContainer.classList.contains('hidden'),
-        ).toBeTruthy();
-        expect(
-          cluster.successContainer.classList.contains('hidden'),
-        ).toBeFalsy();
-        expect(
-          cluster.errorContainer.classList.contains('hidden'),
-        ).toBeTruthy();
-      });
-    });
-
-    describe('when cluster has error', () => {
-      it('should show the error container', () => {
-        cluster.updateContainer('errored', 'this is an error');
-
-        expect(
-          cluster.creatingContainer.classList.contains('hidden'),
-        ).toBeTruthy();
-        expect(
-          cluster.successContainer.classList.contains('hidden'),
-        ).toBeTruthy();
-        expect(
-          cluster.errorContainer.classList.contains('hidden'),
-        ).toBeFalsy();
-
-        expect(
-          cluster.errorReasonContainer.textContent,
-        ).toContain('this is an error');
-      });
-    });
-  });
-});
diff --git a/spec/javascripts/copy_as_gfm_spec.js b/spec/javascripts/copy_as_gfm_spec.js
deleted file mode 100644
index ded450749d3..00000000000
--- a/spec/javascripts/copy_as_gfm_spec.js
+++ /dev/null
@@ -1,49 +0,0 @@
-import '~/copy_as_gfm';
-
-(() => {
-  describe('gl.CopyAsGFM', () => {
-    describe('gl.CopyAsGFM.pasteGFM', () => {
-      function callPasteGFM() {
-        const e = {
-          originalEvent: {
-            clipboardData: {
-              getData(mimeType) {
-                // When GFM code is copied, we put the regular plain text
-                // on the clipboard as `text/plain`, and the GFM as `text/x-gfm`.
-                // This emulates the behavior of `getData` with that data.
-                if (mimeType === 'text/plain') {
-                  return 'code';
-                }
-                if (mimeType === 'text/x-gfm') {
-                  return '`code`';
-                }
-                return null;
-              },
-            },
-          },
-          preventDefault() {},
-        };
-
-        window.gl.CopyAsGFM.pasteGFM(e);
-      }
-
-      it('wraps pasted code when not already in code tags', () => {
-        spyOn(window.gl.utils, 'insertText').and.callFake((el, textFunc) => {
-          const insertedText = textFunc('This is code: ', '');
-          expect(insertedText).toEqual('`code`');
-        });
-
-        callPasteGFM();
-      });
-
-      it('does not wrap pasted code when already in code tags', () => {
-        spyOn(window.gl.utils, 'insertText').and.callFake((el, textFunc) => {
-          const insertedText = textFunc('This is code: `', '`');
-          expect(insertedText).toEqual('code');
-        });
-
-        callPasteGFM();
-      });
-    });
-  });
-})();
diff --git a/spec/javascripts/emoji_spec.js b/spec/javascripts/emoji_spec.js
index fa11c602ec3..124d91f4477 100644
--- a/spec/javascripts/emoji_spec.js
+++ b/spec/javascripts/emoji_spec.js
@@ -1,6 +1,7 @@
 import { glEmojiTag } from '~/emoji';
 import isEmojiUnicodeSupported, {
   isFlagEmoji,
+  isRainbowFlagEmoji,
   isKeycapEmoji,
   isSkinToneComboEmoji,
   isHorceRacingSkinToneComboEmoji,
@@ -217,6 +218,24 @@ describe('gl_emoji', () => {
     });
   });
 
+  describe('isRainbowFlagEmoji', () => {
+    it('should gracefully handle empty string', () => {
+      expect(isRainbowFlagEmoji('')).toBeFalsy();
+    });
+    it('should detect rainbow_flag', () => {
+      expect(isRainbowFlagEmoji('🏳🌈')).toBeTruthy();
+    });
+    it('should not detect flag_white on its\' own', () => {
+      expect(isRainbowFlagEmoji('🏳')).toBeFalsy();
+    });
+    it('should not detect rainbow on its\' own', () => {
+      expect(isRainbowFlagEmoji('🌈')).toBeFalsy();
+    });
+    it('should not detect flag_white with something else', () => {
+      expect(isRainbowFlagEmoji('🏳🔵')).toBeFalsy();
+    });
+  });
+
   describe('isKeycapEmoji', () => {
     it('should gracefully handle empty string', () => {
       expect(isKeycapEmoji('')).toBeFalsy();
diff --git a/spec/javascripts/filtered_search/filtered_search_manager_spec.js b/spec/javascripts/filtered_search/filtered_search_manager_spec.js
index f209328dee1..230c15e5de6 100644
--- a/spec/javascripts/filtered_search/filtered_search_manager_spec.js
+++ b/spec/javascripts/filtered_search/filtered_search_manager_spec.js
@@ -396,6 +396,25 @@ describe('Filtered Search Manager', () => {
     });
   });
 
+  describe('Clearing search', () => {
+    beforeEach(() => {
+      initializeManager();
+    });
+
+    it('Clicking the "x" clear button, clears the input', () => {
+      const inputValue = 'label:~bug ';
+      manager.filteredSearchInput.value = inputValue;
+      manager.filteredSearchInput.dispatchEvent(new Event('input'));
+
+      expect(gl.DropdownUtils.getSearchQuery()).toEqual(inputValue);
+
+      manager.clearSearchButton.click();
+
+      expect(manager.filteredSearchInput.value).toEqual('');
+      expect(gl.DropdownUtils.getSearchQuery()).toEqual('');
+    });
+  });
+
   describe('toggleInputContainerFocus', () => {
     beforeEach(() => {
       initializeManager();
diff --git a/spec/javascripts/fixtures/clusters.rb b/spec/javascripts/fixtures/clusters.rb
index 5774f36f026..8e74c4f859c 100644
--- a/spec/javascripts/fixtures/clusters.rb
+++ b/spec/javascripts/fixtures/clusters.rb
@@ -6,7 +6,7 @@ describe Projects::ClustersController, '(JavaScript fixtures)', type: :controlle
   let(:admin) { create(:admin) }
   let(:namespace) { create(:namespace, name: 'frontend-fixtures' )}
   let(:project) { create(:project, :repository, namespace: namespace) }
-  let(:cluster) { project.create_cluster!(gcp_cluster_name: "gke-test-creation-1", gcp_project_id: 'gitlab-internal-153318', gcp_cluster_zone: 'us-central1-a', gcp_cluster_size: '1', project_namespace: 'aaa', gcp_machine_type: 'n1-standard-1')}
+  let(:cluster) { create(:cluster, :provided_by_gcp, projects: [project]) }
 
   render_views
 
diff --git a/spec/javascripts/fixtures/pipelines.html.haml b/spec/javascripts/fixtures/pipelines.html.haml
index 97b0c25c923..85ee61f0b54 100644
--- a/spec/javascripts/fixtures/pipelines.html.haml
+++ b/spec/javascripts/fixtures/pipelines.html.haml
@@ -1,16 +1,10 @@
 %div
   #pipelines-list-vue{ data: { endpoint: 'foo',
-    "css-class" => 'foo',
     "help-page-path" => 'foo',
+    "help-auto-devops-path" => 'foo',
     "empty-state-svg-path" => 'foo',
     "error-state-svg-path" => 'foo',
     "new-pipeline-path" => 'foo',
     "can-create-pipeline" => 'true',
-    "all-path" =>  'foo',
-    "pending-path" => 'foo',
-    "running-path" => 'foo',
-    "finished-path" => 'foo',
-    "branches-path" => 'foo',
-    "tags-path" => 'foo',
     "has-ci" => 'foo',
     "ci-lint-path" => 'foo' } }
diff --git a/spec/javascripts/fixtures/search_autocomplete.html.haml b/spec/javascripts/fixtures/search_autocomplete.html.haml
index 7785120da5b..0421ed2182f 100644
--- a/spec/javascripts/fixtures/search_autocomplete.html.haml
+++ b/spec/javascripts/fixtures/search_autocomplete.html.haml
@@ -8,3 +8,4 @@
           %input#search.search-input.dropdown-menu-toggle
           .dropdown-menu.dropdown-select
             .dropdown-content
+    %input{ type: "hidden", class: "js-search-project-options" }
diff --git a/spec/javascripts/gfm_auto_complete_spec.js b/spec/javascripts/gfm_auto_complete_spec.js
index ad0c7264616..6f357306ec7 100644
--- a/spec/javascripts/gfm_auto_complete_spec.js
+++ b/spec/javascripts/gfm_auto_complete_spec.js
@@ -67,6 +67,28 @@ describe('GfmAutoComplete', function () {
     });
   });
 
+  describe('DefaultOptions.beforeInsert', () => {
+    const beforeInsert = (context, value) => (
+      gfmAutoCompleteCallbacks.beforeInsert.call(context, value)
+    );
+
+    const atwhoInstance = { setting: { skipSpecialCharacterTest: false } };
+
+    it('should not quote if value only contains alphanumeric charecters', () => {
+      expect(beforeInsert(atwhoInstance, '@user1')).toBe('@user1');
+      expect(beforeInsert(atwhoInstance, '~label1')).toBe('~label1');
+    });
+
+    it('should quote if value contains any non-alphanumeric characters', () => {
+      expect(beforeInsert(atwhoInstance, '~label-20')).toBe('~"label-20"');
+      expect(beforeInsert(atwhoInstance, '~label 20')).toBe('~"label 20"');
+    });
+
+    it('should quote integer labels', () => {
+      expect(beforeInsert(atwhoInstance, '~1234')).toBe('~"1234"');
+    });
+  });
+
   describe('DefaultOptions.matcher', function () {
     const defaultMatcher = (context, flag, subtext) => (
       gfmAutoCompleteCallbacks.matcher.call(context, flag, subtext)
diff --git a/spec/javascripts/issue_show/components/app_spec.js b/spec/javascripts/issue_show/components/app_spec.js
index 2ea290108a4..5662c7387fb 100644
--- a/spec/javascripts/issue_show/components/app_spec.js
+++ b/spec/javascripts/issue_show/components/app_spec.js
@@ -223,23 +223,46 @@ describe('Issuable output', () => {
       });
     });
 
-    it('closes form on error', (done) => {
-      spyOn(window, 'Flash').and.callThrough();
-      spyOn(vm.service, 'updateIssuable').and.callFake(() => new Promise((resolve, reject) => {
-        reject();
-      }));
+    describe('error when updating', () => {
+      beforeEach(() => {
+        spyOn(window, 'Flash').and.callThrough();
+        spyOn(vm.service, 'updateIssuable').and.callFake(() => new Promise((resolve, reject) => {
+          reject();
+        }));
+      });
 
-      vm.updateIssuable();
+      it('closes form on error', (done) => {
+        vm.updateIssuable();
 
-      setTimeout(() => {
-        expect(
-          eventHub.$emit,
-        ).toHaveBeenCalledWith('close.form');
-        expect(
-          window.Flash,
-        ).toHaveBeenCalledWith('Error updating issue');
+        setTimeout(() => {
+          expect(
+            eventHub.$emit,
+          ).toHaveBeenCalledWith('close.form');
+          expect(
+            window.Flash,
+          ).toHaveBeenCalledWith('Error updating issue');
 
-        done();
+          done();
+        });
+      });
+
+      it('returns the correct error message for issuableType', (done) => {
+        vm.issuableType = 'merge request';
+
+        Vue.nextTick(() => {
+          vm.updateIssuable();
+
+          setTimeout(() => {
+            expect(
+              eventHub.$emit,
+            ).toHaveBeenCalledWith('close.form');
+            expect(
+              window.Flash,
+            ).toHaveBeenCalledWith('Error updating merge request');
+
+            done();
+          });
+        });
       });
     });
   });
diff --git a/spec/javascripts/issue_show/components/edit_actions_spec.js b/spec/javascripts/issue_show/components/edit_actions_spec.js
index f6625b748b6..d779ab7bb31 100644
--- a/spec/javascripts/issue_show/components/edit_actions_spec.js
+++ b/spec/javascripts/issue_show/components/edit_actions_spec.js
@@ -61,6 +61,15 @@ describe('Edit Actions components', () => {
     });
   });
 
+  it('should not show delete button if showDeleteButton is false', (done) => {
+    vm.showDeleteButton = false;
+
+    Vue.nextTick(() => {
+      expect(vm.$el.querySelector('.btn-danger')).toBeNull();
+      done();
+    });
+  });
+
   describe('updateIssuable', () => {
     it('sends update.issauble event when clicking save button', () => {
       vm.$el.querySelector('.btn-save').click();
diff --git a/spec/javascripts/lib/utils/common_utils_spec.js b/spec/javascripts/lib/utils/common_utils_spec.js
index a5298be5669..6dad5d6b6bd 100644
--- a/spec/javascripts/lib/utils/common_utils_spec.js
+++ b/spec/javascripts/lib/utils/common_utils_spec.js
@@ -183,6 +183,36 @@ describe('common_utils', () => {
     });
   });
 
+  describe('historyPushState', () => {
+    afterEach(() => {
+      window.history.replaceState({}, null, null);
+    });
+
+    it('should call pushState with the correct path', () => {
+      spyOn(window.history, 'pushState');
+
+      commonUtils.historyPushState('newpath?page=2');
+
+      expect(window.history.pushState).toHaveBeenCalled();
+      expect(window.history.pushState.calls.allArgs()[0][2]).toContain('newpath?page=2');
+    });
+  });
+
+  describe('parseQueryStringIntoObject', () => {
+    it('should return object with query parameters', () => {
+      expect(commonUtils.parseQueryStringIntoObject('scope=all&page=2')).toEqual({ scope: 'all', page: '2' });
+      expect(commonUtils.parseQueryStringIntoObject('scope=all')).toEqual({ scope: 'all' });
+      expect(commonUtils.parseQueryStringIntoObject()).toEqual({});
+    });
+  });
+
+  describe('buildUrlWithCurrentLocation', () => {
+    it('should build an url with current location and given parameters', () => {
+      expect(commonUtils.buildUrlWithCurrentLocation()).toEqual(window.location.pathname);
+      expect(commonUtils.buildUrlWithCurrentLocation('?page=2')).toEqual(`${window.location.pathname}?page=2`);
+    });
+  });
+
   describe('getParameterByName', () => {
     beforeEach(() => {
       window.history.pushState({}, null, '?scope=all&p=2');
diff --git a/spec/javascripts/lib/utils/datefix_spec.js b/spec/javascripts/lib/utils/datefix_spec.js
index 0b9fde2be67..e58ac4300ba 100644
--- a/spec/javascripts/lib/utils/datefix_spec.js
+++ b/spec/javascripts/lib/utils/datefix_spec.js
@@ -1,4 +1,4 @@
-import { pad, parsePikadayDate, pikadayToString } from '~/lib/utils/datefix';
+import { pad, pikadayToString } from '~/lib/utils/datefix';
 
 describe('datefix', () => {
   describe('pad', () => {
@@ -16,9 +16,7 @@ describe('datefix', () => {
   });
 
   describe('parsePikadayDate', () => {
-    it('should return a UTC date', () => {
-      expect(parsePikadayDate('2020-01-29')).toEqual(new Date('2020-01-29'));
-    });
+    // removed because of https://gitlab.com/gitlab-org/gitlab-ce/issues/39834
   });
 
   describe('pikadayToString', () => {
diff --git a/spec/javascripts/lib/utils/number_utility_spec.js b/spec/javascripts/lib/utils/number_utility_spec.js
index 83c92deccdc..fcf27f6805f 100644
--- a/spec/javascripts/lib/utils/number_utility_spec.js
+++ b/spec/javascripts/lib/utils/number_utility_spec.js
@@ -1,4 +1,4 @@
-import { formatRelevantDigits, bytesToKiB, bytesToMiB } from '~/lib/utils/number_utils';
+import { formatRelevantDigits, bytesToKiB, bytesToMiB, bytesToGiB, numberToHumanSize } from '~/lib/utils/number_utils';
 
 describe('Number Utils', () => {
   describe('formatRelevantDigits', () => {
@@ -52,4 +52,29 @@ describe('Number Utils', () => {
       expect(bytesToMiB(1000000)).toEqual(0.95367431640625);
     });
   });
+
+  describe('bytesToGiB', () => {
+    it('calculates GiB for the given bytes', () => {
+      expect(bytesToGiB(1073741824)).toEqual(1);
+      expect(bytesToGiB(10737418240)).toEqual(10);
+    });
+  });
+
+  describe('numberToHumanSize', () => {
+    it('should return bytes', () => {
+      expect(numberToHumanSize(654)).toEqual('654 bytes');
+    });
+
+    it('should return KiB', () => {
+      expect(numberToHumanSize(1079)).toEqual('1.05 KiB');
+    });
+
+    it('should return MiB', () => {
+      expect(numberToHumanSize(10485764)).toEqual('10.00 MiB');
+    });
+
+    it('should return GiB', () => {
+      expect(numberToHumanSize(10737418240)).toEqual('10.00 GiB');
+    });
+  });
 });
diff --git a/spec/javascripts/lib/utils/poll_spec.js b/spec/javascripts/lib/utils/poll_spec.js
index 2aa7011ca51..9b8f68f1676 100644
--- a/spec/javascripts/lib/utils/poll_spec.js
+++ b/spec/javascripts/lib/utils/poll_spec.js
@@ -155,7 +155,7 @@ describe('Poll', () => {
         successCallback: () => {
           Polling.stop();
           setTimeout(() => {
-            Polling.restart();
+            Polling.restart({ data: { page: 4 } });
           }, 0);
         },
         errorCallback: callbacks.error,
@@ -170,10 +170,10 @@ describe('Poll', () => {
         Polling.stop();
 
         expect(service.fetch.calls.count()).toEqual(2);
-        expect(service.fetch).toHaveBeenCalledWith({ page: 1 });
+        expect(service.fetch).toHaveBeenCalledWith({ page: 4 });
         expect(Polling.stop).toHaveBeenCalled();
         expect(Polling.restart).toHaveBeenCalled();
-
+        expect(Polling.options.data).toEqual({ page: 4 });
         done();
       });
     });
diff --git a/spec/javascripts/lib/utils/text_markdown_spec.js b/spec/javascripts/lib/utils/text_markdown_spec.js
new file mode 100644
index 00000000000..a95a7e2a5be
--- /dev/null
+++ b/spec/javascripts/lib/utils/text_markdown_spec.js
@@ -0,0 +1,62 @@
+import textUtils from '~/lib/utils/text_markdown';
+
+describe('init markdown', () => {
+  let textArea;
+
+  beforeAll(() => {
+    textArea = document.createElement('textarea');
+    document.querySelector('body').appendChild(textArea);
+    textArea.focus();
+  });
+
+  afterAll(() => {
+    textArea.parentNode.removeChild(textArea);
+  });
+
+  describe('without selection', () => {
+    it('inserts the tag on an empty line', () => {
+      const initialValue = '';
+
+      textArea.value = initialValue;
+      textArea.selectionStart = 0;
+      textArea.selectionEnd = 0;
+
+      textUtils.insertText(textArea, textArea.value, '*', null, '', false);
+
+      expect(textArea.value).toEqual(`${initialValue}* `);
+    });
+
+    it('inserts the tag on a new line if the current one is not empty', () => {
+      const initialValue = 'some text';
+
+      textArea.value = initialValue;
+      textArea.setSelectionRange(initialValue.length, initialValue.length);
+
+      textUtils.insertText(textArea, textArea.value, '*', null, '', false);
+
+      expect(textArea.value).toEqual(`${initialValue}\n* `);
+    });
+
+    it('inserts the tag on the same line if the current line only contains spaces', () => {
+      const initialValue = '  ';
+
+      textArea.value = initialValue;
+      textArea.setSelectionRange(initialValue.length, initialValue.length);
+
+      textUtils.insertText(textArea, textArea.value, '*', null, '', false);
+
+      expect(textArea.value).toEqual(`${initialValue}* `);
+    });
+
+    it('inserts the tag on the same line if the current line only contains tabs', () => {
+      const initialValue = '\t\t\t';
+
+      textArea.value = initialValue;
+      textArea.setSelectionRange(initialValue.length, initialValue.length);
+
+      textUtils.insertText(textArea, textArea.value, '*', null, '', false);
+
+      expect(textArea.value).toEqual(`${initialValue}* `);
+    });
+  });
+});
diff --git a/spec/javascripts/lib/utils/text_utility_spec.js b/spec/javascripts/lib/utils/text_utility_spec.js
index 829b3ef5735..b21bd958f90 100644
--- a/spec/javascripts/lib/utils/text_utility_spec.js
+++ b/spec/javascripts/lib/utils/text_utility_spec.js
@@ -1,109 +1,57 @@
-import { highCountTrim } from '~/lib/utils/text_utility';
+import * as textUtils from '~/lib/utils/text_utility';
 
 describe('text_utility', () => {
-  describe('gl.text.getTextWidth', () => {
-    it('returns zero width when no text is passed', () => {
-      expect(gl.text.getTextWidth('')).toBe(0);
+  describe('addDelimiter', () => {
+    it('should add a delimiter to the given string', () => {
+      expect(textUtils.addDelimiter('1234')).toEqual('1,234');
+      expect(textUtils.addDelimiter('222222')).toEqual('222,222');
     });
 
-    it('returns zero width when no text is passed and font is passed', () => {
-      expect(gl.text.getTextWidth('', '100px sans-serif')).toBe(0);
-    });
-
-    it('returns width when text is passed', () => {
-      expect(gl.text.getTextWidth('foo') > 0).toBe(true);
-    });
-
-    it('returns bigger width when font is larger', () => {
-      const largeFont = gl.text.getTextWidth('foo', '100px sans-serif');
-      const regular = gl.text.getTextWidth('foo', '10px sans-serif');
-      expect(largeFont > regular).toBe(true);
-    });
-  });
-
-  describe('gl.text.pluralize', () => {
-    it('returns pluralized', () => {
-      expect(gl.text.pluralize('test', 2)).toBe('tests');
-    });
-
-    it('returns pluralized when count is 0', () => {
-      expect(gl.text.pluralize('test', 0)).toBe('tests');
-    });
-
-    it('does not return pluralized', () => {
-      expect(gl.text.pluralize('test', 1)).toBe('test');
+    it('should not add a delimiter if string contains no numbers', () => {
+      expect(textUtils.addDelimiter('aaaa')).toEqual('aaaa');
     });
   });
 
   describe('highCountTrim', () => {
     it('returns 99+ for count >= 100', () => {
-      expect(highCountTrim(105)).toBe('99+');
-      expect(highCountTrim(100)).toBe('99+');
+      expect(textUtils.highCountTrim(105)).toBe('99+');
+      expect(textUtils.highCountTrim(100)).toBe('99+');
     });
 
     it('returns exact number for count < 100', () => {
-      expect(highCountTrim(45)).toBe(45);
+      expect(textUtils.highCountTrim(45)).toBe(45);
     });
   });
 
-  describe('gl.text.insertText', () => {
-    let textArea;
-
-    beforeAll(() => {
-      textArea = document.createElement('textarea');
-      document.querySelector('body').appendChild(textArea);
-      textArea.focus();
+  describe('humanize', () => {
+    it('should remove underscores and uppercase the first letter', () => {
+      expect(textUtils.humanize('foo_bar')).toEqual('Foo bar');
     });
+  });
 
-    afterAll(() => {
-      textArea.parentNode.removeChild(textArea);
+  describe('pluralize', () => {
+    it('should pluralize given string', () => {
+      expect(textUtils.pluralize('test', 2)).toBe('tests');
     });
 
-    describe('without selection', () => {
-      it('inserts the tag on an empty line', () => {
-        const initialValue = '';
-
-        textArea.value = initialValue;
-        textArea.selectionStart = 0;
-        textArea.selectionEnd = 0;
-
-        gl.text.insertText(textArea, textArea.value, '*', null, '', false);
-
-        expect(textArea.value).toEqual(`${initialValue}* `);
-      });
-
-      it('inserts the tag on a new line if the current one is not empty', () => {
-        const initialValue = 'some text';
-
-        textArea.value = initialValue;
-        textArea.setSelectionRange(initialValue.length, initialValue.length);
-
-        gl.text.insertText(textArea, textArea.value, '*', null, '', false);
-
-        expect(textArea.value).toEqual(`${initialValue}\n* `);
-      });
-
-      it('inserts the tag on the same line if the current line only contains spaces', () => {
-        const initialValue = '  ';
-
-        textArea.value = initialValue;
-        textArea.setSelectionRange(initialValue.length, initialValue.length);
-
-        gl.text.insertText(textArea, textArea.value, '*', null, '', false);
-
-        expect(textArea.value).toEqual(`${initialValue}* `);
-      });
-
-      it('inserts the tag on the same line if the current line only contains tabs', () => {
-        const initialValue = '\t\t\t';
+    it('should pluralize when count is 0', () => {
+      expect(textUtils.pluralize('test', 0)).toBe('tests');
+    });
 
-        textArea.value = initialValue;
-        textArea.setSelectionRange(initialValue.length, initialValue.length);
+    it('should not pluralize when count is 1', () => {
+      expect(textUtils.pluralize('test', 1)).toBe('test');
+    });
+  });
 
-        gl.text.insertText(textArea, textArea.value, '*', null, '', false);
+  describe('dasherize', () => {
+    it('should replace underscores with dashes', () => {
+      expect(textUtils.dasherize('foo_bar_foo')).toEqual('foo-bar-foo');
+    });
+  });
 
-        expect(textArea.value).toEqual(`${initialValue}* `);
-      });
+  describe('slugify', () => {
+    it('should remove accents and convert to lower case', () => {
+      expect(textUtils.slugify('João')).toEqual('joão');
     });
   });
 });
diff --git a/spec/javascripts/monitoring/graph/legend_spec.js b/spec/javascripts/monitoring/graph/legend_spec.js
index 2571b7ef869..145c8db28d5 100644
--- a/spec/javascripts/monitoring/graph/legend_spec.js
+++ b/spec/javascripts/monitoring/graph/legend_spec.js
@@ -28,7 +28,7 @@ const defaultValuesComponent = {
   currentDataIndex: 0,
 };
 
-const timeSeries = createTimeSeries(convertedMetrics[0].queries[0],
+const timeSeries = createTimeSeries(convertedMetrics[0].queries,
   defaultValuesComponent.graphWidth, defaultValuesComponent.graphHeight,
   defaultValuesComponent.graphHeightOffset);
 
diff --git a/spec/javascripts/monitoring/graph_path_spec.js b/spec/javascripts/monitoring/graph_path_spec.js
index 81825a3ae87..c83bd19345f 100644
--- a/spec/javascripts/monitoring/graph_path_spec.js
+++ b/spec/javascripts/monitoring/graph_path_spec.js
@@ -13,7 +13,7 @@ const createComponent = (propsData) => {
 
 const convertedMetrics = convertDatesMultipleSeries(singleRowMetricsMultipleSeries);
 
-const timeSeries = createTimeSeries(convertedMetrics[0].queries[0], 428, 272, 120);
+const timeSeries = createTimeSeries(convertedMetrics[0].queries, 428, 272, 120);
 const firstTimeSeries = timeSeries[0];
 
 describe('Monitoring Paths', () => {
@@ -32,4 +32,21 @@ describe('Monitoring Paths', () => {
     expect(metricLine.getAttribute('stroke')).toBe('#1f78d1');
     expect(metricLine.getAttribute('d')).toBe(firstTimeSeries.linePath);
   });
+
+  describe('Computed properties', () => {
+    it('strokeDashArray', () => {
+      const component = createComponent({
+        generatedLinePath: firstTimeSeries.linePath,
+        generatedAreaPath: firstTimeSeries.areaPath,
+        lineColor: firstTimeSeries.lineColor,
+        areaColor: firstTimeSeries.areaColor,
+      });
+
+      component.lineStyle = 'dashed';
+      expect(component.strokeDashArray).toBe('3, 1');
+
+      component.lineStyle = 'dotted';
+      expect(component.strokeDashArray).toBe('1, 1');
+    });
+  });
 });
diff --git a/spec/javascripts/monitoring/utils/multiple_time_series_spec.js b/spec/javascripts/monitoring/utils/multiple_time_series_spec.js
index 7e44a9ade9e..99584c75287 100644
--- a/spec/javascripts/monitoring/utils/multiple_time_series_spec.js
+++ b/spec/javascripts/monitoring/utils/multiple_time_series_spec.js
@@ -2,7 +2,7 @@ import createTimeSeries from '~/monitoring/utils/multiple_time_series';
 import { convertDatesMultipleSeries, singleRowMetricsMultipleSeries } from '../mock_data';
 
 const convertedMetrics = convertDatesMultipleSeries(singleRowMetricsMultipleSeries);
-const timeSeries = createTimeSeries(convertedMetrics[0].queries[0], 428, 272, 120);
+const timeSeries = createTimeSeries(convertedMetrics[0].queries, 428, 272, 120);
 const firstTimeSeries = timeSeries[0];
 
 describe('Multiple time series', () => {
diff --git a/spec/javascripts/notes/components/issue_comment_form_spec.js b/spec/javascripts/notes/components/issue_comment_form_spec.js
index a26fc8f63cc..db75262b562 100644
--- a/spec/javascripts/notes/components/issue_comment_form_spec.js
+++ b/spec/javascripts/notes/components/issue_comment_form_spec.js
@@ -55,6 +55,25 @@ describe('issue_comment_form component', () => {
 
         expect(vm.toggleIssueState).toHaveBeenCalled();
       });
+
+      it('should disable action button whilst submitting', (done) => {
+        const saveNotePromise = Promise.resolve();
+        vm.note = 'hello world';
+        spyOn(vm, 'saveNote').and.returnValue(saveNotePromise);
+        spyOn(vm, 'stopPolling');
+
+        const actionButton = vm.$el.querySelector('.js-action-button');
+
+        vm.handleSave();
+
+        Vue.nextTick()
+          .then(() => expect(actionButton.disabled).toBeTruthy())
+          .then(saveNotePromise)
+          .then(Vue.nextTick)
+          .then(() => expect(actionButton.disabled).toBeFalsy())
+          .then(done)
+          .catch(done.fail);
+      });
     });
 
     describe('textarea', () => {
diff --git a/spec/javascripts/pipelines/navigation_tabs_spec.js b/spec/javascripts/pipelines/navigation_tabs_spec.js
index 53a88e6322f..f125a2fa189 100644
--- a/spec/javascripts/pipelines/navigation_tabs_spec.js
+++ b/spec/javascripts/pipelines/navigation_tabs_spec.js
@@ -8,120 +8,48 @@ describe('navigation tabs pipeline component', () => {
   let data;
 
   beforeEach(() => {
-    data = {
-      scope: 'all',
-      count: {
-        all: 16,
-        running: 1,
-        pending: 10,
-        finished: 0,
+    data = [
+      {
+        name: 'All',
+        scope: 'all',
+        count: 1,
+        isActive: true,
+      },
+      {
+        name: 'Pending',
+        scope: 'pending',
+        count: 0,
+        isActive: false,
       },
-      paths: {
-        allPath: '/gitlab-org/gitlab-ce/pipelines',
-        pendingPath: '/gitlab-org/gitlab-ce/pipelines?scope=pending',
-        finishedPath: '/gitlab-org/gitlab-ce/pipelines?scope=finished',
-        runningPath: '/gitlab-org/gitlab-ce/pipelines?scope=running',
-        branchesPath: '/gitlab-org/gitlab-ce/pipelines?scope=branches',
-        tagsPath: '/gitlab-org/gitlab-ce/pipelines?scope=tags',
+      {
+        name: 'Running',
+        scope: 'running',
+        isActive: false,
       },
-    };
+    ];
 
     Component = Vue.extend(navigationTabs);
+    vm = mountComponent(Component, { tabs: data });
   });
 
   afterEach(() => {
     vm.$destroy();
   });
 
-  it('should render tabs with correct paths', () => {
-    vm = mountComponent(Component, data);
-
-    // All
-    const allTab = vm.$el.querySelector('.js-pipelines-tab-all a');
-    expect(allTab.textContent.trim()).toContain('All');
-    expect(allTab.getAttribute('href')).toEqual(data.paths.allPath);
-
-    // Pending
-    const pendingTab = vm.$el.querySelector('.js-pipelines-tab-pending a');
-    expect(pendingTab.textContent.trim()).toContain('Pending');
-    expect(pendingTab.getAttribute('href')).toEqual(data.paths.pendingPath);
-
-    // Running
-    const runningTab = vm.$el.querySelector('.js-pipelines-tab-running a');
-    expect(runningTab.textContent.trim()).toContain('Running');
-    expect(runningTab.getAttribute('href')).toEqual(data.paths.runningPath);
-
-    // Finished
-    const finishedTab = vm.$el.querySelector('.js-pipelines-tab-finished a');
-    expect(finishedTab.textContent.trim()).toContain('Finished');
-    expect(finishedTab.getAttribute('href')).toEqual(data.paths.finishedPath);
-
-    // Branches
-    const branchesTab = vm.$el.querySelector('.js-pipelines-tab-branches a');
-    expect(branchesTab.textContent.trim()).toContain('Branches');
-
-    // Tags
-    const tagsTab = vm.$el.querySelector('.js-pipelines-tab-tags a');
-    expect(tagsTab.textContent.trim()).toContain('Tags');
+  it('should render tabs', () => {
+    expect(vm.$el.querySelectorAll('li').length).toEqual(data.length);
   });
 
-  describe('scope', () => {
-    it('should render scope provided as active tab', () => {
-      vm = mountComponent(Component, data);
-      expect(vm.$el.querySelector('.js-pipelines-tab-all').className).toContain('active');
-    });
+  it('should render active tab', () => {
+    expect(vm.$el.querySelector('.active .js-pipelines-tab-all')).toBeDefined();
   });
 
-  describe('badges', () => {
-    it('should render provided number', () => {
-      vm = mountComponent(Component, data);
-      // All
-      expect(
-        vm.$el.querySelector('.js-totalbuilds-count').textContent.trim(),
-      ).toContain(data.count.all);
-
-      // Pending
-      expect(
-        vm.$el.querySelector('.js-pipelines-tab-pending .badge').textContent.trim(),
-      ).toContain(data.count.pending);
-
-      // Running
-      expect(
-        vm.$el.querySelector('.js-pipelines-tab-running .badge').textContent.trim(),
-      ).toContain(data.count.running);
-
-      // Finished
-      expect(
-        vm.$el.querySelector('.js-pipelines-tab-finished .badge').textContent.trim(),
-      ).toContain(data.count.finished);
-    });
-
-    it('should not render badge when number is undefined', () => {
-      vm = mountComponent(Component, {
-        scope: 'all',
-        paths: {},
-        count: {},
-      });
-
-       // All
-      expect(
-        vm.$el.querySelector('.js-totalbuilds-count'),
-      ).toEqual(null);
-
-      // Pending
-      expect(
-        vm.$el.querySelector('.js-pipelines-tab-pending .badge'),
-      ).toEqual(null);
-
-      // Running
-      expect(
-        vm.$el.querySelector('.js-pipelines-tab-running .badge'),
-      ).toEqual(null);
+  it('should render badge', () => {
+    expect(vm.$el.querySelector('.js-pipelines-tab-all .badge').textContent.trim()).toEqual('1');
+    expect(vm.$el.querySelector('.js-pipelines-tab-pending .badge').textContent.trim()).toEqual('0');
+  });
 
-      // Finished
-      expect(
-        vm.$el.querySelector('.js-pipelines-tab-finished .badge'),
-      ).toEqual(null);
-    });
+  it('should not render badge', () => {
+    expect(vm.$el.querySelector('.js-pipelines-tab-running .badge')).toEqual(null);
   });
 });
diff --git a/spec/javascripts/pipelines/pipelines_spec.js b/spec/javascripts/pipelines/pipelines_spec.js
index c30abb2edb0..ff38bc1974d 100644
--- a/spec/javascripts/pipelines/pipelines_spec.js
+++ b/spec/javascripts/pipelines/pipelines_spec.js
@@ -1,6 +1,7 @@
 import Vue from 'vue';
 import pipelinesComp from '~/pipelines/components/pipelines.vue';
 import Store from '~/pipelines/stores/pipelines_store';
+import mountComponent from '../helpers/vue_mount_component_helper';
 
 describe('Pipelines', () => {
   const jsonFixtureName = 'pipelines/pipelines.json';
@@ -9,26 +10,33 @@ describe('Pipelines', () => {
   preloadFixtures(jsonFixtureName);
 
   let PipelinesComponent;
-  let pipeline;
+  let pipelines;
+  let component;
 
   beforeEach(() => {
     loadFixtures('static/pipelines.html.raw');
-    const pipelines = getJSONFixture(jsonFixtureName).pipelines;
-    pipeline = pipelines.find(p => p.id === 1);
+    pipelines = getJSONFixture(jsonFixtureName);
 
     PipelinesComponent = Vue.extend(pipelinesComp);
   });
 
+  afterEach(() => {
+    component.$destroy();
+  });
+
   describe('successfull request', () => {
     describe('with pipelines', () => {
       const pipelinesInterceptor = (request, next) => {
-        next(request.respondWith(JSON.stringify(pipeline), {
+        next(request.respondWith(JSON.stringify(pipelines), {
           status: 200,
         }));
       };
 
       beforeEach(() => {
         Vue.http.interceptors.push(pipelinesInterceptor);
+        component = mountComponent(PipelinesComponent, {
+          store: new Store(),
+        });
       });
 
       afterEach(() => {
@@ -38,18 +46,71 @@ describe('Pipelines', () => {
       });
 
       it('should render table', (done) => {
-        const component = new PipelinesComponent({
-          propsData: {
-            store: new Store(),
-          },
-        }).$mount();
-
         setTimeout(() => {
           expect(component.$el.querySelector('.table-holder')).toBeDefined();
-          expect(component.$el.querySelector('.realtime-loading')).toBe(null);
+          expect(
+            component.$el.querySelectorAll('.gl-responsive-table-row').length,
+          ).toEqual(pipelines.pipelines.length + 1);
           done();
         });
       });
+
+      it('should render navigation tabs', (done) => {
+        setTimeout(() => {
+          expect(
+            component.$el.querySelector('.js-pipelines-tab-pending').textContent.trim(),
+          ).toContain('Pending');
+          expect(
+            component.$el.querySelector('.js-pipelines-tab-all').textContent.trim(),
+          ).toContain('All');
+          expect(
+            component.$el.querySelector('.js-pipelines-tab-running').textContent.trim(),
+          ).toContain('Running');
+          expect(
+            component.$el.querySelector('.js-pipelines-tab-finished').textContent.trim(),
+          ).toContain('Finished');
+          expect(
+            component.$el.querySelector('.js-pipelines-tab-branches').textContent.trim(),
+          ).toContain('Branches');
+          expect(
+            component.$el.querySelector('.js-pipelines-tab-tags').textContent.trim(),
+          ).toContain('Tags');
+          done();
+        });
+      });
+
+      it('should make an API request when using tabs', (done) => {
+        setTimeout(() => {
+          spyOn(component, 'updateContent');
+          component.$el.querySelector('.js-pipelines-tab-finished').click();
+
+          expect(component.updateContent).toHaveBeenCalledWith({ scope: 'finished', page: '1' });
+          done();
+        });
+      });
+
+      describe('with pagination', () => {
+        it('should make an API request when using pagination', (done) => {
+          setTimeout(() => {
+            spyOn(component, 'updateContent');
+            // Mock pagination
+            component.store.state.pageInfo = {
+              page: 1,
+              total: 10,
+              perPage: 2,
+              nextPage: 2,
+              totalPages: 5,
+            };
+
+            Vue.nextTick(() => {
+              component.$el.querySelector('.js-next-button a').click();
+              expect(component.updateContent).toHaveBeenCalledWith({ scope: 'all', page: '2' });
+
+              done();
+            });
+          });
+        });
+      });
     });
 
     describe('without pipelines', () => {
@@ -70,15 +131,14 @@ describe('Pipelines', () => {
       });
 
       it('should render empty state', (done) => {
-        const component = new PipelinesComponent({
+        component = new PipelinesComponent({
           propsData: {
             store: new Store(),
           },
         }).$mount();
 
         setTimeout(() => {
-          expect(component.$el.querySelector('.empty-state')).toBeDefined();
-          expect(component.$el.querySelector('.realtime-loading')).toBe(null);
+          expect(component.$el.querySelector('.empty-state')).not.toBe(null);
           done();
         });
       });
@@ -103,7 +163,7 @@ describe('Pipelines', () => {
     });
 
     it('should render error state', (done) => {
-      const component = new PipelinesComponent({
+      component = new PipelinesComponent({
         propsData: {
           store: new Store(),
         },
@@ -111,9 +171,50 @@ describe('Pipelines', () => {
 
       setTimeout(() => {
         expect(component.$el.querySelector('.js-pipelines-error-state')).toBeDefined();
-        expect(component.$el.querySelector('.realtime-loading')).toBe(null);
         done();
       });
     });
   });
+
+  describe('updateContent', () => {
+    it('should set given parameters', () => {
+      component = mountComponent(PipelinesComponent, {
+        store: new Store(),
+      });
+      component.updateContent({ scope: 'finished', page: '4' });
+
+      expect(component.page).toEqual('4');
+      expect(component.scope).toEqual('finished');
+      expect(component.requestData.scope).toEqual('finished');
+      expect(component.requestData.page).toEqual('4');
+    });
+  });
+
+  describe('onChangeTab', () => {
+    it('should set page to 1', () => {
+      component = mountComponent(PipelinesComponent, {
+        store: new Store(),
+      });
+
+      spyOn(component, 'updateContent');
+
+      component.onChangeTab('running');
+
+      expect(component.updateContent).toHaveBeenCalledWith({ scope: 'running', page: '1' });
+    });
+  });
+
+  describe('onChangePage', () => {
+    it('should update page and keep scope', () => {
+      component = mountComponent(PipelinesComponent, {
+        store: new Store(),
+      });
+
+      spyOn(component, 'updateContent');
+
+      component.onChangePage(4);
+
+      expect(component.updateContent).toHaveBeenCalledWith({ scope: component.scope, page: '4' });
+    });
+  });
 });
diff --git a/spec/javascripts/repo/components/repo_file_spec.js b/spec/javascripts/repo/components/repo_file_spec.js
index c45f8a18d1f..bf9181fb09c 100644
--- a/spec/javascripts/repo/components/repo_file_spec.js
+++ b/spec/javascripts/repo/components/repo_file_spec.js
@@ -20,7 +20,7 @@ describe('RepoFile', () => {
     resetStore(vm.$store);
   });
 
-  it('renders link, icon, name and last commit details', () => {
+  it('renders link, icon and name', () => {
     const RepoFile = Vue.extend(repoFile);
     vm = new RepoFile({
       store,
@@ -37,10 +37,9 @@ describe('RepoFile', () => {
     expect(vm.$el.querySelector(`.${vm.file.icon}`).style.marginLeft).toEqual('0px');
     expect(name.href).toMatch(`/${vm.file.url}`);
     expect(name.textContent.trim()).toEqual(vm.file.name);
-    expect(vm.$el.querySelector('.commit-message').textContent.trim()).toBe(vm.file.lastCommit.message);
-    expect(vm.$el.querySelector('.commit-update').textContent.trim()).toBe(updated);
     expect(fileIcon.classList.contains(vm.file.icon)).toBeTruthy();
     expect(fileIcon.style.marginLeft).toEqual(`${vm.file.level * 10}px`);
+    expect(vm.$el.querySelectorAll('.animation-container').length).toBe(2);
   });
 
   it('does render if hasFiles is true and is loading tree', () => {
diff --git a/spec/javascripts/repo/helpers.js b/spec/javascripts/repo/helpers.js
index 376c291c64b..820a44992b4 100644
--- a/spec/javascripts/repo/helpers.js
+++ b/spec/javascripts/repo/helpers.js
@@ -12,9 +12,4 @@ export const file = (name = 'name', id = name, type = '') => decorateData({
   url: 'url',
   name,
   path: name,
-  last_commit: {
-    id: '123',
-    message: 'test',
-    committed_date: new Date().toISOString(),
-  },
 });
diff --git a/spec/javascripts/repo/stores/actions/branch_spec.js b/spec/javascripts/repo/stores/actions/branch_spec.js
new file mode 100644
index 00000000000..af9d6835a67
--- /dev/null
+++ b/spec/javascripts/repo/stores/actions/branch_spec.js
@@ -0,0 +1,38 @@
+import store from '~/repo/stores';
+import service from '~/repo/services';
+import { resetStore } from '../../helpers';
+
+describe('Multi-file store branch actions', () => {
+  afterEach(() => {
+    resetStore(store);
+  });
+
+  describe('createNewBranch', () => {
+    beforeEach(() => {
+      spyOn(service, 'createBranch').and.returnValue(Promise.resolve({
+        json: () => ({
+          name: 'testing',
+        }),
+      }));
+      spyOn(history, 'pushState');
+
+      store.state.project.id = 2;
+      store.state.currentBranch = 'testing';
+    });
+
+    it('creates new branch', (done) => {
+      store.dispatch('createNewBranch', 'master')
+        .then(() => {
+          expect(store.state.currentBranch).toBe('testing');
+          expect(service.createBranch).toHaveBeenCalledWith(2, {
+            branch: 'master',
+            ref: 'testing',
+          });
+          expect(history.pushState).toHaveBeenCalled();
+
+          done();
+        })
+        .catch(done.fail);
+    });
+  });
+});
diff --git a/spec/javascripts/repo/stores/actions/file_spec.js b/spec/javascripts/repo/stores/actions/file_spec.js
new file mode 100644
index 00000000000..099c0556e71
--- /dev/null
+++ b/spec/javascripts/repo/stores/actions/file_spec.js
@@ -0,0 +1,417 @@
+import Vue from 'vue';
+import store from '~/repo/stores';
+import service from '~/repo/services';
+import { file, resetStore } from '../../helpers';
+
+describe('Multi-file store file actions', () => {
+  afterEach(() => {
+    resetStore(store);
+  });
+
+  describe('closeFile', () => {
+    let localFile;
+    let getLastCommitDataSpy;
+    let oldGetLastCommitData;
+
+    beforeEach(() => {
+      getLastCommitDataSpy = jasmine.createSpy('getLastCommitData');
+      oldGetLastCommitData = store._actions.getLastCommitData; // eslint-disable-line
+      store._actions.getLastCommitData = [getLastCommitDataSpy]; // eslint-disable-line
+
+      localFile = file();
+      localFile.active = true;
+      localFile.opened = true;
+      localFile.parentTreeUrl = 'parentTreeUrl';
+
+      store.state.openFiles.push(localFile);
+
+      spyOn(history, 'pushState');
+    });
+
+    afterEach(() => {
+      store._actions.getLastCommitData = oldGetLastCommitData; // eslint-disable-line
+    });
+
+    it('closes open files', (done) => {
+      store.dispatch('closeFile', { file: localFile })
+        .then(() => {
+          expect(localFile.opened).toBeFalsy();
+          expect(localFile.active).toBeFalsy();
+          expect(store.state.openFiles.length).toBe(0);
+
+          done();
+        }).catch(done.fail);
+    });
+
+    it('does not close file if has changed', (done) => {
+      localFile.changed = true;
+
+      store.dispatch('closeFile', { file: localFile })
+        .then(() => {
+          expect(localFile.opened).toBeTruthy();
+          expect(localFile.active).toBeTruthy();
+          expect(store.state.openFiles.length).toBe(1);
+
+          done();
+        }).catch(done.fail);
+    });
+
+    it('does not close file if temp file', (done) => {
+      localFile.tempFile = true;
+
+      store.dispatch('closeFile', { file: localFile })
+        .then(() => {
+          expect(localFile.opened).toBeTruthy();
+          expect(localFile.active).toBeTruthy();
+          expect(store.state.openFiles.length).toBe(1);
+
+          done();
+        }).catch(done.fail);
+    });
+
+    it('force closes a changed file', (done) => {
+      localFile.changed = true;
+
+      store.dispatch('closeFile', { file: localFile, force: true })
+        .then(() => {
+          expect(localFile.opened).toBeFalsy();
+          expect(localFile.active).toBeFalsy();
+          expect(store.state.openFiles.length).toBe(0);
+
+          done();
+        }).catch(done.fail);
+    });
+
+    it('calls pushState when no open files are left', (done) => {
+      store.dispatch('closeFile', { file: localFile })
+        .then(() => {
+          expect(history.pushState).toHaveBeenCalledWith(jasmine.anything(), '', 'parentTreeUrl');
+
+          done();
+        }).catch(done.fail);
+    });
+
+    it('sets next file as active', (done) => {
+      const f = file();
+      store.state.openFiles.push(f);
+
+      expect(f.active).toBeFalsy();
+
+      store.dispatch('closeFile', { file: localFile })
+        .then(() => {
+          expect(f.active).toBeTruthy();
+
+          done();
+        }).catch(done.fail);
+    });
+
+    it('calls getLastCommitData', (done) => {
+      store.dispatch('closeFile', { file: localFile })
+        .then(() => {
+          expect(getLastCommitDataSpy).toHaveBeenCalled();
+
+          done();
+        }).catch(done.fail);
+    });
+  });
+
+  describe('setFileActive', () => {
+    let scrollToTabSpy;
+    let oldScrollToTab;
+
+    beforeEach(() => {
+      scrollToTabSpy = jasmine.createSpy('scrollToTab');
+      oldScrollToTab = store._actions.scrollToTab; // eslint-disable-line
+      store._actions.scrollToTab = [scrollToTabSpy]; // eslint-disable-line
+    });
+
+    afterEach(() => {
+      store._actions.scrollToTab = oldScrollToTab; // eslint-disable-line
+    });
+
+    it('calls scrollToTab', (done) => {
+      store.dispatch('setFileActive', file())
+        .then(() => {
+          expect(scrollToTabSpy).toHaveBeenCalled();
+
+          done();
+        }).catch(done.fail);
+    });
+
+    it('sets the file active', (done) => {
+      const localFile = file();
+
+      store.dispatch('setFileActive', localFile)
+        .then(() => {
+          expect(localFile.active).toBeTruthy();
+
+          done();
+        }).catch(done.fail);
+    });
+
+    it('returns early if file is already active', (done) => {
+      const localFile = file();
+      localFile.active = true;
+
+      store.dispatch('setFileActive', localFile)
+        .then(() => {
+          expect(scrollToTabSpy).not.toHaveBeenCalled();
+
+          done();
+        }).catch(done.fail);
+    });
+
+    it('sets current active file to not active', (done) => {
+      const localFile = file();
+      localFile.active = true;
+      store.state.openFiles.push(localFile);
+
+      store.dispatch('setFileActive', file())
+        .then(() => {
+          expect(localFile.active).toBeFalsy();
+
+          done();
+        }).catch(done.fail);
+    });
+
+    it('resets location.hash for line highlighting', (done) => {
+      location.hash = 'test';
+
+      store.dispatch('setFileActive', file())
+        .then(() => {
+          expect(location.hash).not.toBe('test');
+
+          done();
+        }).catch(done.fail);
+    });
+  });
+
+  describe('getFileData', () => {
+    let localFile = file();
+
+    beforeEach(() => {
+      spyOn(service, 'getFileData').and.returnValue(Promise.resolve({
+        headers: {
+          'page-title': 'testing getFileData',
+        },
+        json: () => Promise.resolve({
+          blame_path: 'blame_path',
+          commits_path: 'commits_path',
+          permalink: 'permalink',
+          raw_path: 'raw_path',
+          binary: false,
+          html: '123',
+          render_error: '',
+        }),
+      }));
+
+      localFile = file();
+      localFile.url = 'getFileDataURL';
+    });
+
+    it('calls the service', (done) => {
+      store.dispatch('getFileData', localFile)
+        .then(() => {
+          expect(service.getFileData).toHaveBeenCalledWith('getFileDataURL');
+
+          done();
+        }).catch(done.fail);
+    });
+
+    it('sets the file data', (done) => {
+      store.dispatch('getFileData', localFile)
+        .then(Vue.nextTick)
+        .then(() => {
+          expect(localFile.blamePath).toBe('blame_path');
+
+          done();
+        }).catch(done.fail);
+    });
+
+    it('sets document title', (done) => {
+      store.dispatch('getFileData', localFile)
+        .then(() => {
+          expect(document.title).toBe('testing getFileData');
+
+          done();
+        }).catch(done.fail);
+    });
+
+    it('sets the file as active', (done) => {
+      store.dispatch('getFileData', localFile)
+        .then(Vue.nextTick)
+        .then(() => {
+          expect(localFile.active).toBeTruthy();
+
+          done();
+        }).catch(done.fail);
+    });
+
+    it('adds the file to open files', (done) => {
+      store.dispatch('getFileData', localFile)
+        .then(Vue.nextTick)
+        .then(() => {
+          expect(store.state.openFiles.length).toBe(1);
+          expect(store.state.openFiles[0].name).toBe(localFile.name);
+
+          done();
+        }).catch(done.fail);
+    });
+
+    it('toggles the file loading', (done) => {
+      store.dispatch('getFileData', localFile)
+        .then(() => {
+          expect(localFile.loading).toBeTruthy();
+
+          return Vue.nextTick();
+        })
+        .then(() => {
+          expect(localFile.loading).toBeFalsy();
+
+          done();
+        }).catch(done.fail);
+    });
+  });
+
+  describe('getRawFileData', () => {
+    let tmpFile;
+
+    beforeEach(() => {
+      spyOn(service, 'getRawFileData').and.returnValue(Promise.resolve('raw'));
+
+      tmpFile = file();
+    });
+
+    it('calls getRawFileData service method', (done) => {
+      store.dispatch('getRawFileData', tmpFile)
+        .then(() => {
+          expect(service.getRawFileData).toHaveBeenCalledWith(tmpFile);
+
+          done();
+        }).catch(done.fail);
+    });
+
+    it('updates file raw data', (done) => {
+      store.dispatch('getRawFileData', tmpFile)
+        .then(() => {
+          expect(tmpFile.raw).toBe('raw');
+
+          done();
+        }).catch(done.fail);
+    });
+  });
+
+  describe('changeFileContent', () => {
+    let tmpFile;
+
+    beforeEach(() => {
+      tmpFile = file();
+    });
+
+    it('updates file content', (done) => {
+      store.dispatch('changeFileContent', {
+        file: tmpFile,
+        content: 'content',
+      })
+      .then(() => {
+        expect(tmpFile.content).toBe('content');
+
+        done();
+      }).catch(done.fail);
+    });
+  });
+
+  describe('createTempFile', () => {
+    beforeEach(() => {
+      document.body.innerHTML += '<div class="flash-container"></div>';
+    });
+
+    afterEach(() => {
+      document.querySelector('.flash-container').remove();
+    });
+
+    it('creates temp file', (done) => {
+      store.dispatch('createTempFile', {
+        tree: store.state,
+        name: 'test',
+      }).then((f) => {
+        expect(f.tempFile).toBeTruthy();
+        expect(store.state.tree.length).toBe(1);
+
+        done();
+      }).catch(done.fail);
+    });
+
+    it('adds tmp file to open files', (done) => {
+      store.dispatch('createTempFile', {
+        tree: store.state,
+        name: 'test',
+      }).then((f) => {
+        expect(store.state.openFiles.length).toBe(1);
+        expect(store.state.openFiles[0].name).toBe(f.name);
+
+        done();
+      }).catch(done.fail);
+    });
+
+    it('sets tmp file as active', (done) => {
+      store.dispatch('createTempFile', {
+        tree: store.state,
+        name: 'test',
+      }).then((f) => {
+        expect(f.active).toBeTruthy();
+
+        done();
+      }).catch(done.fail);
+    });
+
+    it('enters edit mode if file is not base64', (done) => {
+      store.dispatch('createTempFile', {
+        tree: store.state,
+        name: 'test',
+      }).then(() => {
+        expect(store.state.editMode).toBeTruthy();
+
+        done();
+      }).catch(done.fail);
+    });
+
+    it('does not enter edit mode if file is base64', (done) => {
+      store.dispatch('createTempFile', {
+        tree: store.state,
+        name: 'test',
+        base64: true,
+      }).then(() => {
+        expect(store.state.editMode).toBeFalsy();
+
+        done();
+      }).catch(done.fail);
+    });
+
+    it('creates flash message is file already exists', (done) => {
+      store.state.tree.push(file('test', '1', 'blob'));
+
+      store.dispatch('createTempFile', {
+        tree: store.state,
+        name: 'test',
+      }).then(() => {
+        expect(document.querySelector('.flash-alert')).not.toBeNull();
+
+        done();
+      }).catch(done.fail);
+    });
+
+    it('increases level of file', (done) => {
+      store.state.level = 1;
+
+      store.dispatch('createTempFile', {
+        tree: store.state,
+        name: 'test',
+      }).then((f) => {
+        expect(f.level).toBe(2);
+
+        done();
+      }).catch(done.fail);
+    });
+  });
+});
diff --git a/spec/javascripts/repo/stores/actions/tree_spec.js b/spec/javascripts/repo/stores/actions/tree_spec.js
new file mode 100644
index 00000000000..393a797c6a3
--- /dev/null
+++ b/spec/javascripts/repo/stores/actions/tree_spec.js
@@ -0,0 +1,469 @@
+import Vue from 'vue';
+import store from '~/repo/stores';
+import service from '~/repo/services';
+import { file, resetStore } from '../../helpers';
+
+describe('Multi-file store tree actions', () => {
+  afterEach(() => {
+    resetStore(store);
+  });
+
+  describe('getTreeData', () => {
+    beforeEach(() => {
+      spyOn(service, 'getTreeData').and.returnValue(Promise.resolve({
+        headers: {
+          'page-title': 'test',
+        },
+        json: () => Promise.resolve({
+          last_commit_path: 'last_commit_path',
+          parent_tree_url: 'parent_tree_url',
+          path: '/',
+          trees: [{ name: 'tree' }],
+          blobs: [{ name: 'blob' }],
+          submodules: [{ name: 'submodule' }],
+        }),
+      }));
+      spyOn(history, 'pushState');
+
+      Object.assign(store.state.endpoints, {
+        rootEndpoint: 'rootEndpoint',
+      });
+    });
+
+    it('calls service getTreeData', (done) => {
+      store.dispatch('getTreeData')
+        .then(() => {
+          expect(service.getTreeData).toHaveBeenCalledWith('rootEndpoint');
+
+          done();
+        }).catch(done.fail);
+    });
+
+    it('adds data into tree', (done) => {
+      store.dispatch('getTreeData')
+        .then(Vue.nextTick)
+        .then(() => {
+          expect(store.state.tree.length).toBe(3);
+          expect(store.state.tree[0].type).toBe('tree');
+          expect(store.state.tree[1].type).toBe('submodule');
+          expect(store.state.tree[2].type).toBe('blob');
+
+          done();
+        }).catch(done.fail);
+    });
+
+    it('sets parent tree URL', (done) => {
+      store.dispatch('getTreeData')
+        .then(Vue.nextTick)
+        .then(() => {
+          expect(store.state.parentTreeUrl).toBe('parent_tree_url');
+
+          done();
+        }).catch(done.fail);
+    });
+
+    it('sets last commit path', (done) => {
+      store.dispatch('getTreeData')
+        .then(Vue.nextTick)
+        .then(() => {
+          expect(store.state.lastCommitPath).toBe('last_commit_path');
+
+          done();
+        }).catch(done.fail);
+    });
+
+    it('sets root if not currently at root', (done) => {
+      store.state.isInitialRoot = false;
+
+      store.dispatch('getTreeData')
+        .then(Vue.nextTick)
+        .then(() => {
+          expect(store.state.isInitialRoot).toBeTruthy();
+          expect(store.state.isRoot).toBeTruthy();
+
+          done();
+        }).catch(done.fail);
+    });
+
+    it('sets page title', (done) => {
+      store.dispatch('getTreeData')
+        .then(() => {
+          expect(document.title).toBe('test');
+
+          done();
+        }).catch(done.fail);
+    });
+
+    it('toggles loading', (done) => {
+      store.dispatch('getTreeData')
+        .then(() => {
+          expect(store.state.loading).toBeTruthy();
+
+          return Vue.nextTick();
+        })
+        .then(() => {
+          expect(store.state.loading).toBeFalsy();
+
+          done();
+        }).catch(done.fail);
+    });
+
+    it('calls pushState with endpoint', (done) => {
+      store.dispatch('getTreeData')
+        .then(Vue.nextTick)
+        .then(() => {
+          expect(history.pushState).toHaveBeenCalledWith(jasmine.anything(), '', 'rootEndpoint');
+
+          done();
+        }).catch(done.fail);
+    });
+
+    it('calls getLastCommitData if prevLastCommitPath is not null', (done) => {
+      const getLastCommitDataSpy = jasmine.createSpy('getLastCommitData');
+      const oldGetLastCommitData = store._actions.getLastCommitData; // eslint-disable-line
+      store._actions.getLastCommitData = [getLastCommitDataSpy]; // eslint-disable-line
+      store.state.prevLastCommitPath = 'test';
+
+      store.dispatch('getTreeData')
+        .then(Vue.nextTick)
+        .then(() => {
+          expect(getLastCommitDataSpy).toHaveBeenCalledWith(store.state);
+
+          store._actions.getLastCommitData = oldGetLastCommitData; // eslint-disable-line
+
+          done();
+        }).catch(done.fail);
+    });
+  });
+
+  describe('toggleTreeOpen', () => {
+    let oldGetTreeData;
+    let getTreeDataSpy;
+    let tree;
+
+    beforeEach(() => {
+      getTreeDataSpy = jasmine.createSpy('getTreeData');
+
+      oldGetTreeData = store._actions.getTreeData;  // eslint-disable-line
+      store._actions.getTreeData = [getTreeDataSpy]; // eslint-disable-line
+
+      tree = {
+        opened: false,
+        tree: [],
+      };
+    });
+
+    afterEach(() => {
+      store._actions.getTreeData = oldGetTreeData; // eslint-disable-line
+    });
+
+    it('toggles the tree open', (done) => {
+      store.dispatch('toggleTreeOpen', {
+        endpoint: 'test',
+        tree,
+      }).then(() => {
+        expect(tree.opened).toBeTruthy();
+
+        done();
+      }).catch(done.fail);
+    });
+
+    it('calls getTreeData if tree is closed', (done) => {
+      store.dispatch('toggleTreeOpen', {
+        endpoint: 'test',
+        tree,
+      }).then(() => {
+        expect(getTreeDataSpy).toHaveBeenCalledWith({
+          endpoint: 'test',
+          tree,
+        });
+        expect(store.state.previousUrl).toBe('test');
+
+        done();
+      }).catch(done.fail);
+    });
+
+    it('resets entries tree', (done) => {
+      Object.assign(tree, {
+        opened: true,
+        tree: ['a'],
+      });
+
+      store.dispatch('toggleTreeOpen', {
+        endpoint: 'test',
+        tree,
+      }).then(() => {
+        expect(tree.tree.length).toBe(0);
+
+        done();
+      }).catch(done.fail);
+    });
+
+    it('pushes new state', (done) => {
+      spyOn(history, 'pushState');
+      Object.assign(tree, {
+        opened: true,
+        parentTreeUrl: 'testing',
+      });
+
+      store.dispatch('toggleTreeOpen', {
+        endpoint: 'test',
+        tree,
+      }).then(() => {
+        expect(history.pushState).toHaveBeenCalledWith(jasmine.anything(), '', 'testing');
+
+        done();
+      }).catch(done.fail);
+    });
+  });
+
+  describe('clickedTreeRow', () => {
+    describe('tree', () => {
+      let toggleTreeOpenSpy;
+      let oldToggleTreeOpen;
+
+      beforeEach(() => {
+        toggleTreeOpenSpy = jasmine.createSpy('toggleTreeOpen');
+
+        oldToggleTreeOpen = store._actions.toggleTreeOpen; // eslint-disable-line
+        store._actions.toggleTreeOpen = [toggleTreeOpenSpy]; // eslint-disable-line
+      });
+
+      afterEach(() => {
+        store._actions.toggleTreeOpen = oldToggleTreeOpen; // eslint-disable-line
+      });
+
+      it('opens tree', (done) => {
+        const tree = {
+          url: 'a',
+          type: 'tree',
+        };
+
+        store.dispatch('clickedTreeRow', tree)
+          .then(() => {
+            expect(toggleTreeOpenSpy).toHaveBeenCalledWith({
+              endpoint: tree.url,
+              tree,
+            });
+
+            done();
+          }).catch(done.fail);
+      });
+    });
+
+    describe('submodule', () => {
+      let row;
+
+      beforeEach(() => {
+        spyOn(gl.utils, 'visitUrl');
+
+        row = {
+          url: 'submoduleurl',
+          type: 'submodule',
+          loading: false,
+        };
+      });
+
+      it('toggles loading for row', (done) => {
+        store.dispatch('clickedTreeRow', row)
+          .then(() => {
+            expect(row.loading).toBeTruthy();
+
+            done();
+          }).catch(done.fail);
+      });
+
+      it('opens submodule URL', (done) => {
+        store.dispatch('clickedTreeRow', row)
+          .then(() => {
+            expect(gl.utils.visitUrl).toHaveBeenCalledWith('submoduleurl');
+
+            done();
+          }).catch(done.fail);
+      });
+    });
+
+    describe('blob', () => {
+      let row;
+
+      beforeEach(() => {
+        row = {
+          type: 'blob',
+          opened: false,
+        };
+      });
+
+      it('calls getFileData', (done) => {
+        const getFileDataSpy = jasmine.createSpy('getFileData');
+        const oldGetFileData = store._actions.getFileData; // eslint-disable-line
+        store._actions.getFileData = [getFileDataSpy]; // eslint-disable-line
+
+        store.dispatch('clickedTreeRow', row)
+          .then(() => {
+            expect(getFileDataSpy).toHaveBeenCalledWith(row);
+
+            store._actions.getFileData = oldGetFileData; // eslint-disable-line
+
+            done();
+          }).catch(done.fail);
+      });
+
+      it('calls setFileActive when file is opened', (done) => {
+        const setFileActiveSpy = jasmine.createSpy('setFileActive');
+        const oldSetFileActive = store._actions.setFileActive; // eslint-disable-line
+        store._actions.setFileActive = [setFileActiveSpy]; // eslint-disable-line
+
+        row.opened = true;
+
+        store.dispatch('clickedTreeRow', row)
+          .then(() => {
+            expect(setFileActiveSpy).toHaveBeenCalledWith(row);
+
+            store._actions.setFileActive = oldSetFileActive; // eslint-disable-line
+
+            done();
+          }).catch(done.fail);
+      });
+    });
+  });
+
+  describe('createTempTree', () => {
+    it('creates temp tree', (done) => {
+      store.dispatch('createTempTree', 'test')
+        .then(() => {
+          expect(store.state.tree[0].tempFile).toBeTruthy();
+          expect(store.state.tree[0].name).toBe('test');
+          expect(store.state.tree[0].type).toBe('tree');
+
+          done();
+        }).catch(done.fail);
+    });
+
+    it('creates .gitkeep file in temp tree', (done) => {
+      store.dispatch('createTempTree', 'test')
+        .then(() => {
+          expect(store.state.tree[0].tree[0].tempFile).toBeTruthy();
+          expect(store.state.tree[0].tree[0].name).toBe('.gitkeep');
+
+          done();
+        }).catch(done.fail);
+    });
+
+    it('creates new folder inside another tree', (done) => {
+      const tree = {
+        type: 'tree',
+        name: 'testing',
+        tree: [],
+      };
+
+      store.state.tree.push(tree);
+
+      store.dispatch('createTempTree', 'testing/test')
+        .then(() => {
+          expect(store.state.tree[0].name).toBe('testing');
+          expect(store.state.tree[0].tree[0].tempFile).toBeTruthy();
+          expect(store.state.tree[0].tree[0].name).toBe('test');
+          expect(store.state.tree[0].tree[0].type).toBe('tree');
+
+          done();
+        }).catch(done.fail);
+    });
+
+    it('does not create new tree if already exists', (done) => {
+      const tree = {
+        type: 'tree',
+        name: 'testing',
+        tree: [],
+      };
+
+      store.state.tree.push(tree);
+
+      store.dispatch('createTempTree', 'testing/test')
+        .then(() => {
+          expect(store.state.tree[0].name).toBe('testing');
+          expect(store.state.tree[0].tempFile).toBeUndefined();
+
+          done();
+        }).catch(done.fail);
+    });
+  });
+
+  describe('getLastCommitData', () => {
+    beforeEach(() => {
+      spyOn(service, 'getTreeLastCommit').and.returnValue(Promise.resolve({
+        headers: {
+          'more-logs-url': null,
+        },
+        json: () => Promise.resolve([{
+          type: 'tree',
+          file_name: 'testing',
+          commit: {
+            message: 'commit message',
+            authored_date: '123',
+          },
+        }]),
+      }));
+
+      store.state.tree.push(file('testing', '1', 'tree'));
+      store.state.lastCommitPath = 'lastcommitpath';
+    });
+
+    it('calls service with lastCommitPath', (done) => {
+      store.dispatch('getLastCommitData')
+        .then(() => {
+          expect(service.getTreeLastCommit).toHaveBeenCalledWith('lastcommitpath');
+
+          done();
+        }).catch(done.fail);
+    });
+
+    it('updates trees last commit data', (done) => {
+      store.dispatch('getLastCommitData')
+        .then(Vue.nextTick)
+        .then(() => {
+          expect(store.state.tree[0].lastCommit.message).toBe('commit message');
+
+          done();
+        }).catch(done.fail);
+    });
+
+    it('does not update entry if not found', (done) => {
+      store.state.tree[0].name = 'a';
+
+      store.dispatch('getLastCommitData')
+        .then(Vue.nextTick)
+        .then(() => {
+          expect(store.state.tree[0].lastCommit.message).not.toBe('commit message');
+
+          done();
+        }).catch(done.fail);
+    });
+  });
+
+  describe('updateDirectoryData', () => {
+    it('adds data into tree', (done) => {
+      const tree = {
+        tree: [],
+      };
+      const data = {
+        trees: [{ name: 'tree' }],
+        submodules: [{ name: 'submodule' }],
+        blobs: [{ name: 'blob' }],
+      };
+
+      store.dispatch('updateDirectoryData', {
+        data,
+        tree,
+      }).then(() => {
+        expect(tree.tree[0].name).toBe('tree');
+        expect(tree.tree[0].type).toBe('tree');
+        expect(tree.tree[1].name).toBe('submodule');
+        expect(tree.tree[1].type).toBe('submodule');
+        expect(tree.tree[2].name).toBe('blob');
+        expect(tree.tree[2].type).toBe('blob');
+
+        done();
+      }).catch(done.fail);
+    });
+  });
+});
diff --git a/spec/javascripts/repo/stores/actions_spec.js b/spec/javascripts/repo/stores/actions_spec.js
new file mode 100644
index 00000000000..f2a7a698912
--- /dev/null
+++ b/spec/javascripts/repo/stores/actions_spec.js
@@ -0,0 +1,419 @@
+import Vue from 'vue';
+import store from '~/repo/stores';
+import service from '~/repo/services';
+import { resetStore, file } from '../helpers';
+
+describe('Multi-file store actions', () => {
+  afterEach(() => {
+    resetStore(store);
+  });
+
+  describe('redirectToUrl', () => {
+    it('calls visitUrl', (done) => {
+      spyOn(gl.utils, 'visitUrl');
+
+      store.dispatch('redirectToUrl', 'test')
+        .then(() => {
+          expect(gl.utils.visitUrl).toHaveBeenCalledWith('test');
+
+          done();
+        })
+        .catch(done.fail);
+    });
+  });
+
+  describe('setInitialData', () => {
+    it('commits initial data', (done) => {
+      store.dispatch('setInitialData', { canCommit: true })
+        .then(() => {
+          expect(store.state.canCommit).toBeTruthy();
+          done();
+        })
+        .catch(done.fail);
+    });
+  });
+
+  describe('closeDiscardPopup', () => {
+    it('closes the discard popup', (done) => {
+      store.dispatch('closeDiscardPopup', false)
+        .then(() => {
+          expect(store.state.discardPopupOpen).toBeFalsy();
+
+          done();
+        })
+        .catch(done.fail);
+    });
+  });
+
+  describe('discardAllChanges', () => {
+    beforeEach(() => {
+      store.state.openFiles.push(file());
+      store.state.openFiles[0].changed = true;
+    });
+  });
+
+  describe('closeAllFiles', () => {
+    beforeEach(() => {
+      store.state.openFiles.push(file());
+      store.state.openFiles[0].opened = true;
+    });
+
+    it('closes all open files', (done) => {
+      store.dispatch('closeAllFiles')
+        .then(() => {
+          expect(store.state.openFiles.length).toBe(0);
+
+          done();
+        })
+        .catch(done.fail);
+    });
+  });
+
+  describe('toggleEditMode', () => {
+    it('toggles edit mode', (done) => {
+      store.state.editMode = true;
+
+      store.dispatch('toggleEditMode')
+        .then(() => {
+          expect(store.state.editMode).toBeFalsy();
+
+          done();
+        }).catch(done.fail);
+    });
+
+    it('sets preview mode', (done) => {
+      store.state.currentBlobView = 'repo-editor';
+      store.state.editMode = true;
+
+      store.dispatch('toggleEditMode')
+        .then(Vue.nextTick)
+        .then(() => {
+          expect(store.state.currentBlobView).toBe('repo-preview');
+
+          done();
+        }).catch(done.fail);
+    });
+
+    it('opens discard popup if there are changed files', (done) => {
+      store.state.editMode = true;
+      store.state.openFiles.push(file());
+      store.state.openFiles[0].changed = true;
+
+      store.dispatch('toggleEditMode')
+        .then(() => {
+          expect(store.state.discardPopupOpen).toBeTruthy();
+
+          done();
+        }).catch(done.fail);
+    });
+
+    it('can force closed if there are changed files', (done) => {
+      store.state.editMode = true;
+      store.state.openFiles.push(file());
+      store.state.openFiles[0].changed = true;
+
+      store.dispatch('toggleEditMode', true)
+        .then(() => {
+          expect(store.state.discardPopupOpen).toBeFalsy();
+          expect(store.state.editMode).toBeFalsy();
+
+          done();
+        }).catch(done.fail);
+    });
+
+    it('discards file changes', (done) => {
+      const f = file();
+      store.state.editMode = true;
+      store.state.tree.push(f);
+      store.state.openFiles.push(f);
+      f.changed = true;
+
+      store.dispatch('toggleEditMode', true)
+        .then(Vue.nextTick)
+        .then(() => {
+          expect(f.changed).toBeFalsy();
+
+          done();
+        }).catch(done.fail);
+    });
+  });
+
+  describe('toggleBlobView', () => {
+    it('sets edit mode view if in edit mode', (done) => {
+      store.state.editMode = true;
+
+      store.dispatch('toggleBlobView')
+        .then(() => {
+          expect(store.state.currentBlobView).toBe('repo-editor');
+
+          done();
+        })
+        .catch(done.fail);
+    });
+
+    it('sets preview mode view if not in edit mode', (done) => {
+      store.dispatch('toggleBlobView')
+      .then(() => {
+        expect(store.state.currentBlobView).toBe('repo-preview');
+
+        done();
+      })
+      .catch(done.fail);
+    });
+  });
+
+  describe('checkCommitStatus', () => {
+    beforeEach(() => {
+      store.state.project.id = 2;
+      store.state.currentBranch = 'master';
+      store.state.currentRef = '1';
+    });
+
+    it('calls service', (done) => {
+      spyOn(service, 'getBranchData').and.returnValue(Promise.resolve({
+        commit: { id: '123' },
+      }));
+
+      store.dispatch('checkCommitStatus')
+        .then(() => {
+          expect(service.getBranchData).toHaveBeenCalledWith(2, 'master');
+
+          done();
+        })
+        .catch(done.fail);
+    });
+
+    it('returns true if current ref does not equal returned ID', (done) => {
+      spyOn(service, 'getBranchData').and.returnValue(Promise.resolve({
+        commit: { id: '123' },
+      }));
+
+      store.dispatch('checkCommitStatus')
+        .then((val) => {
+          expect(val).toBeTruthy();
+
+          done();
+        })
+        .catch(done.fail);
+    });
+
+    it('returns false if current ref equals returned ID', (done) => {
+      spyOn(service, 'getBranchData').and.returnValue(Promise.resolve({
+        commit: { id: '1' },
+      }));
+
+      store.dispatch('checkCommitStatus')
+        .then((val) => {
+          expect(val).toBeFalsy();
+
+          done();
+        })
+        .catch(done.fail);
+    });
+  });
+
+  describe('commitChanges', () => {
+    let payload;
+
+    beforeEach(() => {
+      spyOn(window, 'scrollTo');
+
+      document.body.innerHTML += '<div class="flash-container"></div>';
+
+      store.state.project.id = 123;
+      payload = {
+        branch: 'master',
+      };
+    });
+
+    afterEach(() => {
+      document.querySelector('.flash-container').remove();
+    });
+
+    describe('success', () => {
+      beforeEach(() => {
+        spyOn(service, 'commit').and.returnValue(Promise.resolve({
+          id: '123456',
+          short_id: '123',
+          message: 'test message',
+          committed_date: 'date',
+          stats: {
+            additions: '1',
+            deletions: '2',
+          },
+        }));
+      });
+
+      it('calls service', (done) => {
+        store.dispatch('commitChanges', { payload, newMr: false })
+          .then(() => {
+            expect(service.commit).toHaveBeenCalledWith(123, payload);
+
+            done();
+          }).catch(done.fail);
+      });
+
+      it('shows flash notice', (done) => {
+        store.dispatch('commitChanges', { payload, newMr: false })
+          .then(() => {
+            const alert = document.querySelector('.flash-container');
+
+            expect(alert.querySelector('.flash-notice')).not.toBeNull();
+            expect(alert.textContent.trim()).toBe(
+              'Your changes have been committed. Commit 123 with 1 additions, 2 deletions.',
+            );
+
+            done();
+          }).catch(done.fail);
+      });
+
+      it('adds commit data to changed files', (done) => {
+        const changedFile = file();
+        const f = file();
+        changedFile.changed = true;
+
+        store.state.openFiles.push(changedFile, f);
+
+        store.dispatch('commitChanges', { payload, newMr: false })
+          .then(() => {
+            expect(changedFile.lastCommit.message).toBe('test message');
+            expect(f.lastCommit.message).not.toBe('test message');
+
+            done();
+          }).catch(done.fail);
+      });
+
+      it('toggles edit mode', (done) => {
+        store.state.editMode = true;
+
+        store.dispatch('commitChanges', { payload, newMr: false })
+          .then(() => {
+            expect(store.state.editMode).toBeFalsy();
+
+            done();
+          }).catch(done.fail);
+      });
+
+      it('closes all files', (done) => {
+        store.state.openFiles.push(file());
+        store.state.openFiles[0].opened = true;
+
+        store.dispatch('commitChanges', { payload, newMr: false })
+          .then(Vue.nextTick)
+          .then(() => {
+            expect(store.state.openFiles.length).toBe(0);
+
+            done();
+          }).catch(done.fail);
+      });
+
+      it('scrolls to top of page', (done) => {
+        store.dispatch('commitChanges', { payload, newMr: false })
+          .then(() => {
+            expect(window.scrollTo).toHaveBeenCalledWith(0, 0);
+
+            done();
+          }).catch(done.fail);
+      });
+
+      it('updates commit ref', (done) => {
+        store.dispatch('commitChanges', { payload, newMr: false })
+          .then(() => {
+            expect(store.state.currentRef).toBe('123456');
+
+            done();
+          }).catch(done.fail);
+      });
+
+      it('redirects to new merge request page', (done) => {
+        spyOn(gl.utils, 'visitUrl');
+
+        store.state.endpoints.newMergeRequestUrl = 'newMergeRequestUrl?branch=';
+
+        store.dispatch('commitChanges', { payload, newMr: true })
+          .then(() => {
+            expect(gl.utils.visitUrl).toHaveBeenCalledWith('newMergeRequestUrl?branch=master');
+
+            done();
+          }).catch(done.fail);
+      });
+    });
+
+    describe('failed', () => {
+      beforeEach(() => {
+        spyOn(service, 'commit').and.returnValue(Promise.resolve({
+          message: 'failed message',
+        }));
+      });
+
+      it('shows failed message', (done) => {
+        store.dispatch('commitChanges', { payload, newMr: false })
+          .then(() => {
+            const alert = document.querySelector('.flash-container');
+
+            expect(alert.textContent.trim()).toBe(
+              'failed message',
+            );
+
+            done();
+          }).catch(done.fail);
+      });
+    });
+  });
+
+  describe('createTempEntry', () => {
+    it('creates a temp tree', (done) => {
+      store.dispatch('createTempEntry', {
+        name: 'test',
+        type: 'tree',
+      })
+      .then(() => {
+        expect(store.state.tree.length).toBe(1);
+        expect(store.state.tree[0].tempFile).toBeTruthy();
+        expect(store.state.tree[0].type).toBe('tree');
+
+        done();
+      })
+      .catch(done.fail);
+    });
+
+    it('creates temp file', (done) => {
+      store.dispatch('createTempEntry', {
+        name: 'test',
+        type: 'blob',
+      })
+      .then(() => {
+        expect(store.state.tree.length).toBe(1);
+        expect(store.state.tree[0].tempFile).toBeTruthy();
+        expect(store.state.tree[0].type).toBe('blob');
+
+        done();
+      })
+      .catch(done.fail);
+    });
+  });
+
+  describe('popHistoryState', () => {
+
+  });
+
+  describe('scrollToTab', () => {
+    it('focuses the current active element', (done) => {
+      document.body.innerHTML += '<div id="tabs"><div class="active"><div class="repo-tab"></div></div></div>';
+      const el = document.querySelector('.repo-tab');
+      spyOn(el, 'focus');
+
+      store.dispatch('scrollToTab')
+        .then(() => {
+          setTimeout(() => {
+            expect(el.focus).toHaveBeenCalled();
+
+            document.getElementById('tabs').remove();
+
+            done();
+          });
+        })
+        .catch(done.fail);
+    });
+  });
+});
diff --git a/spec/javascripts/repo/stores/getters_spec.js b/spec/javascripts/repo/stores/getters_spec.js
new file mode 100644
index 00000000000..a204b2386cd
--- /dev/null
+++ b/spec/javascripts/repo/stores/getters_spec.js
@@ -0,0 +1,119 @@
+import * as getters from '~/repo/stores/getters';
+import state from '~/repo/stores/state';
+import { file } from '../helpers';
+
+describe('Multi-file store getters', () => {
+  let localState;
+
+  beforeEach(() => {
+    localState = state();
+  });
+
+  describe('treeList', () => {
+    it('returns flat tree list', () => {
+      localState.tree.push(file('1'));
+      localState.tree[0].tree.push(file('2'));
+      localState.tree[0].tree[0].tree.push(file('3'));
+
+      const treeList = getters.treeList(localState);
+
+      expect(treeList.length).toBe(3);
+      expect(treeList[1].name).toBe(localState.tree[0].tree[0].name);
+      expect(treeList[2].name).toBe(localState.tree[0].tree[0].tree[0].name);
+    });
+  });
+
+  describe('changedFiles', () => {
+    it('returns a list of changed opened files', () => {
+      localState.openFiles.push(file());
+      localState.openFiles.push(file('changed'));
+      localState.openFiles[1].changed = true;
+
+      const changedFiles = getters.changedFiles(localState);
+
+      expect(changedFiles.length).toBe(1);
+      expect(changedFiles[0].name).toBe('changed');
+    });
+  });
+
+  describe('activeFile', () => {
+    it('returns the current active file', () => {
+      localState.openFiles.push(file());
+      localState.openFiles.push(file('active'));
+      localState.openFiles[1].active = true;
+
+      expect(getters.activeFile(localState).name).toBe('active');
+    });
+
+    it('returns undefined if no active files are found', () => {
+      localState.openFiles.push(file());
+      localState.openFiles.push(file('active'));
+
+      expect(getters.activeFile(localState)).toBeUndefined();
+    });
+  });
+
+  describe('activeFileExtension', () => {
+    it('returns the file extension for the current active file', () => {
+      localState.openFiles.push(file('active'));
+      localState.openFiles[0].active = true;
+      localState.openFiles[0].path = 'test.js';
+
+      expect(getters.activeFileExtension(localState)).toBe('.js');
+
+      localState.openFiles[0].path = 'test.es6.js';
+
+      expect(getters.activeFileExtension(localState)).toBe('.js');
+    });
+  });
+
+  describe('isCollapsed', () => {
+    it('returns true if state has open files', () => {
+      localState.openFiles.push(file());
+
+      expect(getters.isCollapsed(localState)).toBeTruthy();
+    });
+
+    it('returns false if state has no open files', () => {
+      expect(getters.isCollapsed(localState)).toBeFalsy();
+    });
+  });
+
+  describe('canEditFile', () => {
+    beforeEach(() => {
+      localState.onTopOfBranch = true;
+      localState.canCommit = true;
+
+      localState.openFiles.push(file());
+      localState.openFiles[0].active = true;
+    });
+
+    it('returns true if user can commit and has open files', () => {
+      expect(getters.canEditFile(localState)).toBeTruthy();
+    });
+
+    it('returns false if user can commit and has no open files', () => {
+      localState.openFiles = [];
+
+      expect(getters.canEditFile(localState)).toBeFalsy();
+    });
+
+    it('returns false if user can commit and active file is binary', () => {
+      localState.openFiles[0].binary = true;
+
+      expect(getters.canEditFile(localState)).toBeFalsy();
+    });
+
+    it('returns false if user cant commit', () => {
+      localState.canCommit = false;
+
+      expect(getters.canEditFile(localState)).toBeFalsy();
+    });
+
+    it('returns false if user can commit but on a branch', () => {
+      localState.onTopOfBranch = false;
+
+      expect(getters.canEditFile(localState)).toBeFalsy();
+    });
+  });
+});
diff --git a/spec/javascripts/repo/stores/mutations/branch_spec.js b/spec/javascripts/repo/stores/mutations/branch_spec.js
new file mode 100644
index 00000000000..3c06794d5e3
--- /dev/null
+++ b/spec/javascripts/repo/stores/mutations/branch_spec.js
@@ -0,0 +1,18 @@
+import mutations from '~/repo/stores/mutations/branch';
+import state from '~/repo/stores/state';
+
+describe('Multi-file store branch mutations', () => {
+  let localState;
+
+  beforeEach(() => {
+    localState = state();
+  });
+
+  describe('SET_CURRENT_BRANCH', () => {
+    it('sets currentBranch', () => {
+      mutations.SET_CURRENT_BRANCH(localState, 'master');
+
+      expect(localState.currentBranch).toBe('master');
+    });
+  });
+});
diff --git a/spec/javascripts/repo/stores/mutations/file_spec.js b/spec/javascripts/repo/stores/mutations/file_spec.js
new file mode 100644
index 00000000000..2f2835dde1f
--- /dev/null
+++ b/spec/javascripts/repo/stores/mutations/file_spec.js
@@ -0,0 +1,131 @@
+import mutations from '~/repo/stores/mutations/file';
+import state from '~/repo/stores/state';
+import { file } from '../../helpers';
+
+describe('Multi-file store file mutations', () => {
+  let localState;
+  let localFile;
+
+  beforeEach(() => {
+    localState = state();
+    localFile = file();
+  });
+
+  describe('SET_FILE_ACTIVE', () => {
+    it('sets the file active', () => {
+      mutations.SET_FILE_ACTIVE(localState, {
+        file: localFile,
+        active: true,
+      });
+
+      expect(localFile.active).toBeTruthy();
+    });
+  });
+
+  describe('TOGGLE_FILE_OPEN', () => {
+    beforeEach(() => {
+      mutations.TOGGLE_FILE_OPEN(localState, localFile);
+    });
+
+    it('adds into opened files', () => {
+      expect(localFile.opened).toBeTruthy();
+      expect(localState.openFiles.length).toBe(1);
+    });
+
+    it('removes from opened files', () => {
+      mutations.TOGGLE_FILE_OPEN(localState, localFile);
+
+      expect(localFile.opened).toBeFalsy();
+      expect(localState.openFiles.length).toBe(0);
+    });
+  });
+
+  describe('SET_FILE_DATA', () => {
+    it('sets extra file data', () => {
+      mutations.SET_FILE_DATA(localState, {
+        data: {
+          blame_path: 'blame',
+          commits_path: 'commits',
+          permalink: 'permalink',
+          raw_path: 'raw',
+          binary: true,
+          html: 'html',
+          render_error: 'render_error',
+        },
+        file: localFile,
+      });
+
+      expect(localFile.blamePath).toBe('blame');
+      expect(localFile.commitsPath).toBe('commits');
+      expect(localFile.permalink).toBe('permalink');
+      expect(localFile.rawPath).toBe('raw');
+      expect(localFile.binary).toBeTruthy();
+      expect(localFile.html).toBe('html');
+      expect(localFile.renderError).toBe('render_error');
+    });
+  });
+
+  describe('SET_FILE_RAW_DATA', () => {
+    it('sets raw data', () => {
+      mutations.SET_FILE_RAW_DATA(localState, {
+        file: localFile,
+        raw: 'testing',
+      });
+
+      expect(localFile.raw).toBe('testing');
+    });
+  });
+
+  describe('UPDATE_FILE_CONTENT', () => {
+    beforeEach(() => {
+      localFile.raw = 'test';
+    });
+
+    it('sets content', () => {
+      mutations.UPDATE_FILE_CONTENT(localState, {
+        file: localFile,
+        content: 'test',
+      });
+
+      expect(localFile.content).toBe('test');
+    });
+
+    it('sets changed if content does not match raw', () => {
+      mutations.UPDATE_FILE_CONTENT(localState, {
+        file: localFile,
+        content: 'testing',
+      });
+
+      expect(localFile.content).toBe('testing');
+      expect(localFile.changed).toBeTruthy();
+    });
+  });
+
+  describe('DISCARD_FILE_CHANGES', () => {
+    beforeEach(() => {
+      localFile.content = 'test';
+      localFile.changed = true;
+    });
+
+    it('resets content and changed', () => {
+      mutations.DISCARD_FILE_CHANGES(localState, localFile);
+
+      expect(localFile.content).toBe('');
+      expect(localFile.changed).toBeFalsy();
+    });
+  });
+
+  describe('CREATE_TMP_FILE', () => {
+    it('adds file into parent tree', () => {
+      const f = file();
+
+      mutations.CREATE_TMP_FILE(localState, {
+        file: f,
+        parent: localFile,
+      });
+
+      expect(localFile.tree.length).toBe(1);
+      expect(localFile.tree[0].name).toBe(f.name);
+    });
+  });
+});
diff --git a/spec/javascripts/repo/stores/mutations/tree_spec.js b/spec/javascripts/repo/stores/mutations/tree_spec.js
new file mode 100644
index 00000000000..1c76cfed9c8
--- /dev/null
+++ b/spec/javascripts/repo/stores/mutations/tree_spec.js
@@ -0,0 +1,71 @@
+import mutations from '~/repo/stores/mutations/tree';
+import state from '~/repo/stores/state';
+import { file } from '../../helpers';
+
+describe('Multi-file store tree mutations', () => {
+  let localState;
+  let localTree;
+
+  beforeEach(() => {
+    localState = state();
+    localTree = file();
+  });
+
+  describe('TOGGLE_TREE_OPEN', () => {
+    it('toggles tree open', () => {
+      mutations.TOGGLE_TREE_OPEN(localState, localTree);
+
+      expect(localTree.opened).toBeTruthy();
+
+      mutations.TOGGLE_TREE_OPEN(localState, localTree);
+
+      expect(localTree.opened).toBeFalsy();
+    });
+  });
+
+  describe('SET_DIRECTORY_DATA', () => {
+    const data = [{
+      name: 'tree',
+    },
+    {
+      name: 'submodule',
+    },
+    {
+      name: 'blob',
+    }];
+
+    it('adds directory data', () => {
+      mutations.SET_DIRECTORY_DATA(localState, {
+        data,
+        tree: localState,
+      });
+
+      expect(localState.tree.length).toBe(3);
+      expect(localState.tree[0].name).toBe('tree');
+      expect(localState.tree[1].name).toBe('submodule');
+      expect(localState.tree[2].name).toBe('blob');
+    });
+  });
+
+  describe('SET_PARENT_TREE_URL', () => {
+    it('sets the parent tree url', () => {
+      mutations.SET_PARENT_TREE_URL(localState, 'test');
+
+      expect(localState.parentTreeUrl).toBe('test');
+    });
+  });
+
+  describe('CREATE_TMP_TREE', () => {
+    it('adds tree into parent tree', () => {
+      const tmpEntry = file();
+
+      mutations.CREATE_TMP_TREE(localState, {
+        tmpEntry,
+        parent: localTree,
+      });
+
+      expect(localTree.tree.length).toBe(1);
+      expect(localTree.tree[0].name).toBe(tmpEntry.name);
+    });
+  });
+});
diff --git a/spec/javascripts/repo/stores/mutations_spec.js b/spec/javascripts/repo/stores/mutations_spec.js
new file mode 100644
index 00000000000..d1c9885e01d
--- /dev/null
+++ b/spec/javascripts/repo/stores/mutations_spec.js
@@ -0,0 +1,117 @@
+import mutations from '~/repo/stores/mutations';
+import state from '~/repo/stores/state';
+import { file } from '../helpers';
+
+describe('Multi-file store mutations', () => {
+  let localState;
+  let entry;
+
+  beforeEach(() => {
+    localState = state();
+    entry = file();
+  });
+
+  describe('SET_INITIAL_DATA', () => {
+    it('sets all initial data', () => {
+      mutations.SET_INITIAL_DATA(localState, {
+        test: 'test',
+      });
+
+      expect(localState.test).toBe('test');
+    });
+  });
+
+  describe('SET_PREVIEW_MODE', () => {
+    it('sets currentBlobView to repo-preview', () => {
+      mutations.SET_PREVIEW_MODE(localState);
+
+      expect(localState.currentBlobView).toBe('repo-preview');
+
+      localState.currentBlobView = 'testing';
+
+      mutations.SET_PREVIEW_MODE(localState);
+
+      expect(localState.currentBlobView).toBe('repo-preview');
+    });
+  });
+
+  describe('SET_EDIT_MODE', () => {
+    it('sets currentBlobView to repo-editor', () => {
+      mutations.SET_EDIT_MODE(localState);
+
+      expect(localState.currentBlobView).toBe('repo-editor');
+
+      localState.currentBlobView = 'testing';
+
+      mutations.SET_EDIT_MODE(localState);
+
+      expect(localState.currentBlobView).toBe('repo-editor');
+    });
+  });
+
+  describe('TOGGLE_LOADING', () => {
+    it('toggles loading of entry', () => {
+      mutations.TOGGLE_LOADING(localState, entry);
+
+      expect(entry.loading).toBeTruthy();
+
+      mutations.TOGGLE_LOADING(localState, entry);
+
+      expect(entry.loading).toBeFalsy();
+    });
+  });
+
+  describe('TOGGLE_EDIT_MODE', () => {
+    it('toggles editMode', () => {
+      mutations.TOGGLE_EDIT_MODE(localState);
+
+      expect(localState.editMode).toBeTruthy();
+
+      mutations.TOGGLE_EDIT_MODE(localState);
+
+      expect(localState.editMode).toBeFalsy();
+    });
+  });
+
+  describe('TOGGLE_DISCARD_POPUP', () => {
+    it('sets discardPopupOpen', () => {
+      mutations.TOGGLE_DISCARD_POPUP(localState, true);
+
+      expect(localState.discardPopupOpen).toBeTruthy();
+
+      mutations.TOGGLE_DISCARD_POPUP(localState, false);
+
+      expect(localState.discardPopupOpen).toBeFalsy();
+    });
+  });
+
+  describe('SET_COMMIT_REF', () => {
+    it('sets currentRef', () => {
+      mutations.SET_COMMIT_REF(localState, '123');
+
+      expect(localState.currentRef).toBe('123');
+    });
+  });
+
+  describe('SET_ROOT', () => {
+    it('sets isRoot & initialRoot', () => {
+      mutations.SET_ROOT(localState, true);
+
+      expect(localState.isRoot).toBeTruthy();
+      expect(localState.isInitialRoot).toBeTruthy();
+
+      mutations.SET_ROOT(localState, false);
+
+      expect(localState.isRoot).toBeFalsy();
+      expect(localState.isInitialRoot).toBeFalsy();
+    });
+  });
+
+  describe('SET_PREVIOUS_URL', () => {
+    it('sets previousUrl', () => {
+      mutations.SET_PREVIOUS_URL(localState, 'testing');
+
+      expect(localState.previousUrl).toBe('testing');
+    });
+  });
+});
diff --git a/spec/javascripts/repo/stores/utils_spec.js b/spec/javascripts/repo/stores/utils_spec.js
new file mode 100644
index 00000000000..37287c587d7
--- /dev/null
+++ b/spec/javascripts/repo/stores/utils_spec.js
@@ -0,0 +1,102 @@
+import * as utils from '~/repo/stores/utils';
+
+describe('Multi-file store utils', () => {
+  describe('setPageTitle', () => {
+    it('sets the document page title', () => {
+      utils.setPageTitle('test');
+
+      expect(document.title).toBe('test');
+    });
+  });
+
+  describe('pushState', () => {
+    it('calls history.pushState', () => {
+      spyOn(history, 'pushState');
+
+      utils.pushState('test');
+
+      expect(history.pushState).toHaveBeenCalledWith({ url: 'test' }, '', 'test');
+    });
+  });
+
+  describe('createTemp', () => {
+    it('creates temp tree', () => {
+      const tmp = utils.createTemp({
+        name: 'test',
+        path: 'test',
+        type: 'tree',
+        level: 0,
+        changed: false,
+        content: '',
+        base64: '',
+      });
+
+      expect(tmp.tempFile).toBeTruthy();
+      expect(tmp.icon).toBe('fa-folder');
+    });
+
+    it('creates temp file', () => {
+      const tmp = utils.createTemp({
+        name: 'test',
+        path: 'test',
+        type: 'blob',
+        level: 0,
+        changed: false,
+        content: '',
+        base64: '',
+      });
+
+      expect(tmp.tempFile).toBeTruthy();
+      expect(tmp.icon).toBe('fa-file-text-o');
+    });
+  });
+
+  describe('findIndexOfFile', () => {
+    let state;
+
+    beforeEach(() => {
+      state = [{
+        path: '1',
+      }, {
+        path: '2',
+      }];
+    });
+
+    it('finds in the index of an entry by path', () => {
+      const index = utils.findIndexOfFile(state, {
+        path: '2',
+      });
+
+      expect(index).toBe(1);
+    });
+  });
+
+  describe('findEntry', () => {
+    let state;
+
+    beforeEach(() => {
+      state = {
+        tree: [{
+          type: 'tree',
+          name: 'test',
+        }, {
+          type: 'blob',
+          name: 'file',
+        }],
+      };
+    });
+
+    it('returns an entry found by name', () => {
+      const foundEntry = utils.findEntry(state, 'tree', 'test');
+
+      expect(foundEntry.type).toBe('tree');
+      expect(foundEntry.name).toBe('test');
+    });
+
+    it('returns undefined when no entry found', () => {
+      const foundEntry = utils.findEntry(state, 'blob', 'test');
+
+      expect(foundEntry).toBeUndefined();
+    });
+  });
+});
diff --git a/spec/javascripts/search_autocomplete_spec.js b/spec/javascripts/search_autocomplete_spec.js
index 5e55a5d2686..a2394857b82 100644
--- a/spec/javascripts/search_autocomplete_spec.js
+++ b/spec/javascripts/search_autocomplete_spec.js
@@ -57,6 +57,10 @@ import '~/lib/utils/common_utils';
     }
   };
 
+  const disableProjectIssues = function() {
+    document.querySelector('.js-search-project-options').setAttribute('data-issues-disabled', true);
+  };
+
   // Mock `gl` object in window for dashboard specific page. App code will need it.
   mockDashboardOptions = function() {
     window.gl || (window.gl = {});
@@ -91,18 +95,20 @@ import '~/lib/utils/common_utils';
 
   assertLinks = function(list, issuesPath, mrsPath) {
     var a1, a2, a3, a4, issuesAssignedToMeLink, issuesIHaveCreatedLink, mrsAssignedToMeLink, mrsIHaveCreatedLink;
-    issuesAssignedToMeLink = issuesPath + "/?assignee_username=" + userName;
-    issuesIHaveCreatedLink = issuesPath + "/?author_username=" + userName;
+    if (issuesPath) {
+      issuesAssignedToMeLink = issuesPath + "/?assignee_username=" + userName;
+      issuesIHaveCreatedLink = issuesPath + "/?author_username=" + userName;
+      a1 = "a[href='" + issuesAssignedToMeLink + "']";
+      a2 = "a[href='" + issuesIHaveCreatedLink + "']";
+      expect(list.find(a1).length).toBe(1);
+      expect(list.find(a1).text()).toBe('Issues assigned to me');
+      expect(list.find(a2).length).toBe(1);
+      expect(list.find(a2).text()).toBe("Issues I've created");
+    }
     mrsAssignedToMeLink = mrsPath + "/?assignee_username=" + userName;
     mrsIHaveCreatedLink = mrsPath + "/?author_username=" + userName;
-    a1 = "a[href='" + issuesAssignedToMeLink + "']";
-    a2 = "a[href='" + issuesIHaveCreatedLink + "']";
     a3 = "a[href='" + mrsAssignedToMeLink + "']";
     a4 = "a[href='" + mrsIHaveCreatedLink + "']";
-    expect(list.find(a1).length).toBe(1);
-    expect(list.find(a1).text()).toBe('Issues assigned to me');
-    expect(list.find(a2).length).toBe(1);
-    expect(list.find(a2).text()).toBe("Issues I've created");
     expect(list.find(a3).length).toBe(1);
     expect(list.find(a3).text()).toBe('Merge requests assigned to me');
     expect(list.find(a4).length).toBe(1);
@@ -153,6 +159,14 @@ import '~/lib/utils/common_utils';
       list = widget.wrap.find('.dropdown-menu').find('ul');
       return assertLinks(list, projectIssuesPath, projectMRsPath);
     });
+    it('should show only Project mergeRequest dropdown menu items when project issues are disabled', function() {
+      addBodyAttributes('project');
+      disableProjectIssues();
+      mockProjectOptions();
+      widget.searchInput.triggerHandler('focus');
+      const list = widget.wrap.find('.dropdown-menu').find('ul');
+      assertLinks(list, null, projectMRsPath);
+    });
     it('should not show category related menu if there is text in the input', function() {
       var link, list;
       addBodyAttributes('project');
diff --git a/spec/javascripts/shortcuts_issuable_spec.js b/spec/javascripts/shortcuts_issuable_spec.js
index f6320db8dc4..5d6a885d4cc 100644
--- a/spec/javascripts/shortcuts_issuable_spec.js
+++ b/spec/javascripts/shortcuts_issuable_spec.js
@@ -1,6 +1,8 @@
-import '~/copy_as_gfm';
+import initCopyAsGFM from '~/behaviors/copy_as_gfm';
 import ShortcutsIssuable from '~/shortcuts_issuable';
 
+initCopyAsGFM();
+
 describe('ShortcutsIssuable', () => {
   const fixtureName = 'merge_requests/diff_comment.html.raw';
   preloadFixtures(fixtureName);
diff --git a/spec/javascripts/sidebar/sidebar_service_spec.js b/spec/javascripts/sidebar/sidebar_service_spec.js
deleted file mode 100644
index 7324d34d84a..00000000000
--- a/spec/javascripts/sidebar/sidebar_service_spec.js
+++ /dev/null
@@ -1,66 +0,0 @@
-import Vue from 'vue';
-import SidebarService from '~/sidebar/services/sidebar_service';
-import Mock from './mock_data';
-
-describe('Sidebar service', () => {
-  beforeEach(() => {
-    Vue.http.interceptors.push(Mock.sidebarMockInterceptor);
-    this.service = new SidebarService({
-      endpoint: '/gitlab-org/gitlab-shell/issues/5.json',
-      toggleSubscriptionEndpoint: '/gitlab-org/gitlab-shell/issues/5/toggle_subscription',
-      moveIssueEndpoint: '/gitlab-org/gitlab-shell/issues/5/move',
-      projectsAutocompleteEndpoint: '/autocomplete/projects?project_id=15',
-    });
-  });
-
-  afterEach(() => {
-    SidebarService.singleton = null;
-    Vue.http.interceptors = _.without(Vue.http.interceptors, Mock.sidebarMockInterceptor);
-  });
-
-  it('gets the data', (done) => {
-    this.service.get()
-      .then((resp) => {
-        expect(resp).toBeDefined();
-        done();
-      })
-      .then(done)
-      .catch(done.fail);
-  });
-
-  it('updates the data', (done) => {
-    this.service.update('issue[assignee_ids]', [1])
-      .then((resp) => {
-        expect(resp).toBeDefined();
-      })
-      .then(done)
-      .catch(done.fail);
-  });
-
-  it('gets projects for autocomplete', (done) => {
-    this.service.getProjectsAutocomplete()
-      .then((resp) => {
-        expect(resp).toBeDefined();
-      })
-      .then(done)
-      .catch(done.fail);
-  });
-
-  it('moves the issue to another project', (done) => {
-    this.service.moveIssue(123)
-      .then((resp) => {
-        expect(resp).toBeDefined();
-      })
-      .then(done)
-      .catch(done.fail);
-  });
-
-  it('toggles the subscription', (done) => {
-    this.service.toggleSubscription()
-      .then((resp) => {
-        expect(resp).toBeDefined();
-      })
-      .then(done)
-      .catch(done.fail);
-  });
-});
diff --git a/spec/javascripts/smart_interval_spec.js b/spec/javascripts/smart_interval_spec.js
index 7833bf3fb04..1c87fcec245 100644
--- a/spec/javascripts/smart_interval_spec.js
+++ b/spec/javascripts/smart_interval_spec.js
@@ -1,6 +1,6 @@
-import '~/smart_interval';
+import SmartInterval from '~/smart_interval';
 
-(() => {
+describe('SmartInterval', function () {
   const DEFAULT_MAX_INTERVAL = 100;
   const DEFAULT_STARTING_INTERVAL = 5;
   const DEFAULT_SHORT_TIMEOUT = 75;
@@ -9,7 +9,7 @@ import '~/smart_interval';
 
   function createDefaultSmartInterval(config) {
     const defaultParams = {
-      callback: () => {},
+      callback: () => Promise.resolve(),
       startingInterval: DEFAULT_STARTING_INTERVAL,
       maxInterval: DEFAULT_MAX_INTERVAL,
       incrementByFactorOf: DEFAULT_INCREMENT_FACTOR,
@@ -22,158 +22,171 @@ import '~/smart_interval';
       _.extend(defaultParams, config);
     }
 
-    return new gl.SmartInterval(defaultParams);
+    return new SmartInterval(defaultParams);
   }
 
-  describe('SmartInterval', function () {
-    describe('Increment Interval', function () {
-      beforeEach(function () {
-        this.smartInterval = createDefaultSmartInterval();
-      });
+  describe('Increment Interval', function () {
+    beforeEach(function () {
+      this.smartInterval = createDefaultSmartInterval();
+    });
 
-      it('should increment the interval delay', function (done) {
-        const interval = this.smartInterval;
-        setTimeout(() => {
-          const intervalConfig = this.smartInterval.cfg;
-          const iterationCount = 4;
-          const maxIntervalAfterIterations = intervalConfig.startingInterval *
-            (intervalConfig.incrementByFactorOf ** (iterationCount - 1)); // 40
-          const currentInterval = interval.getCurrentInterval();
-
-          // Provide some flexibility for performance of testing environment
-          expect(currentInterval).toBeGreaterThan(intervalConfig.startingInterval);
-          expect(currentInterval <= maxIntervalAfterIterations).toBeTruthy();
-
-          done();
-        }, DEFAULT_SHORT_TIMEOUT); // 4 iterations, increment by 2x = (5 + 10 + 20 + 40)
-      });
+    it('should increment the interval delay', function (done) {
+      const interval = this.smartInterval;
+      setTimeout(() => {
+        const intervalConfig = this.smartInterval.cfg;
+        const iterationCount = 4;
+        const maxIntervalAfterIterations = intervalConfig.startingInterval *
+          (intervalConfig.incrementByFactorOf ** (iterationCount - 1)); // 40
+        const currentInterval = interval.getCurrentInterval();
+
+        // Provide some flexibility for performance of testing environment
+        expect(currentInterval).toBeGreaterThan(intervalConfig.startingInterval);
+        expect(currentInterval <= maxIntervalAfterIterations).toBeTruthy();
+
+        done();
+      }, DEFAULT_SHORT_TIMEOUT); // 4 iterations, increment by 2x = (5 + 10 + 20 + 40)
+    });
 
-      it('should not increment past maxInterval', function (done) {
-        const interval = this.smartInterval;
+    it('should not increment past maxInterval', function (done) {
+      const interval = this.smartInterval;
 
-        setTimeout(() => {
-          const currentInterval = interval.getCurrentInterval();
-          expect(currentInterval).toBe(interval.cfg.maxInterval);
+      setTimeout(() => {
+        const currentInterval = interval.getCurrentInterval();
+        expect(currentInterval).toBe(interval.cfg.maxInterval);
 
-          done();
-        }, DEFAULT_LONG_TIMEOUT);
-      });
+        done();
+      }, DEFAULT_LONG_TIMEOUT);
     });
 
-    describe('Public methods', function () {
-      beforeEach(function () {
-        this.smartInterval = createDefaultSmartInterval();
+    it('does not increment while waiting for callback', function () {
+      jasmine.clock().install();
+
+      const smartInterval = createDefaultSmartInterval({
+        callback: () => new Promise($.noop),
       });
 
-      it('should cancel an interval', function (done) {
-        const interval = this.smartInterval;
+      jasmine.clock().tick(DEFAULT_SHORT_TIMEOUT);
+
+      const oneInterval = smartInterval.cfg.startingInterval * DEFAULT_INCREMENT_FACTOR;
+      expect(smartInterval.getCurrentInterval()).toEqual(oneInterval);
 
-        setTimeout(() => {
-          interval.cancel();
+      jasmine.clock().uninstall();
+    });
+  });
 
-          const intervalId = interval.state.intervalId;
-          const currentInterval = interval.getCurrentInterval();
-          const intervalLowerLimit = interval.cfg.startingInterval;
+  describe('Public methods', function () {
+    beforeEach(function () {
+      this.smartInterval = createDefaultSmartInterval();
+    });
 
-          expect(intervalId).toBeUndefined();
-          expect(currentInterval).toBe(intervalLowerLimit);
+    it('should cancel an interval', function (done) {
+      const interval = this.smartInterval;
 
-          done();
-        }, DEFAULT_SHORT_TIMEOUT);
-      });
+      setTimeout(() => {
+        interval.cancel();
 
-      it('should resume an interval', function (done) {
-        const interval = this.smartInterval;
+        const intervalId = interval.state.intervalId;
+        const currentInterval = interval.getCurrentInterval();
+        const intervalLowerLimit = interval.cfg.startingInterval;
 
-        setTimeout(() => {
-          interval.cancel();
+        expect(intervalId).toBeUndefined();
+        expect(currentInterval).toBe(intervalLowerLimit);
 
-          interval.resume();
+        done();
+      }, DEFAULT_SHORT_TIMEOUT);
+    });
 
-          const intervalId = interval.state.intervalId;
+    it('should resume an interval', function (done) {
+      const interval = this.smartInterval;
 
-          expect(intervalId).toBeTruthy();
+      setTimeout(() => {
+        interval.cancel();
 
-          done();
-        }, DEFAULT_SHORT_TIMEOUT);
-      });
+        interval.resume();
+
+        const intervalId = interval.state.intervalId;
+
+        expect(intervalId).toBeTruthy();
+
+        done();
+      }, DEFAULT_SHORT_TIMEOUT);
     });
+  });
 
-    describe('DOM Events', function () {
-      beforeEach(function () {
-        // This ensures DOM and DOM events are initialized for these specs.
-        setFixtures('<div></div>');
+  describe('DOM Events', function () {
+    beforeEach(function () {
+      // This ensures DOM and DOM events are initialized for these specs.
+      setFixtures('<div></div>');
 
-        this.smartInterval = createDefaultSmartInterval();
-      });
+      this.smartInterval = createDefaultSmartInterval();
+    });
 
-      it('should pause when page is not visible', function (done) {
-        const interval = this.smartInterval;
+    it('should pause when page is not visible', function (done) {
+      const interval = this.smartInterval;
 
-        setTimeout(() => {
-          expect(interval.state.intervalId).toBeTruthy();
+      setTimeout(() => {
+        expect(interval.state.intervalId).toBeTruthy();
 
-          // simulates triggering of visibilitychange event
-          interval.handleVisibilityChange({ target: { visibilityState: 'hidden' } });
+        // simulates triggering of visibilitychange event
+        interval.handleVisibilityChange({ target: { visibilityState: 'hidden' } });
 
-          expect(interval.state.intervalId).toBeUndefined();
-          done();
-        }, DEFAULT_SHORT_TIMEOUT);
-      });
+        expect(interval.state.intervalId).toBeUndefined();
+        done();
+      }, DEFAULT_SHORT_TIMEOUT);
+    });
 
-      it('should change to the hidden interval when page is not visible', function (done) {
-        const HIDDEN_INTERVAL = 1500;
-        const interval = createDefaultSmartInterval({ hiddenInterval: HIDDEN_INTERVAL });
+    it('should change to the hidden interval when page is not visible', function (done) {
+      const HIDDEN_INTERVAL = 1500;
+      const interval = createDefaultSmartInterval({ hiddenInterval: HIDDEN_INTERVAL });
 
-        setTimeout(() => {
-          expect(interval.state.intervalId).toBeTruthy();
-          expect(interval.getCurrentInterval() >= DEFAULT_STARTING_INTERVAL &&
-            interval.getCurrentInterval() <= DEFAULT_MAX_INTERVAL).toBeTruthy();
+      setTimeout(() => {
+        expect(interval.state.intervalId).toBeTruthy();
+        expect(interval.getCurrentInterval() >= DEFAULT_STARTING_INTERVAL &&
+          interval.getCurrentInterval() <= DEFAULT_MAX_INTERVAL).toBeTruthy();
 
-          // simulates triggering of visibilitychange event
-          interval.handleVisibilityChange({ target: { visibilityState: 'hidden' } });
+        // simulates triggering of visibilitychange event
+        interval.handleVisibilityChange({ target: { visibilityState: 'hidden' } });
 
-          expect(interval.state.intervalId).toBeTruthy();
-          expect(interval.getCurrentInterval()).toBe(HIDDEN_INTERVAL);
-          done();
-        }, DEFAULT_SHORT_TIMEOUT);
-      });
+        expect(interval.state.intervalId).toBeTruthy();
+        expect(interval.getCurrentInterval()).toBe(HIDDEN_INTERVAL);
+        done();
+      }, DEFAULT_SHORT_TIMEOUT);
+    });
 
-      it('should resume when page is becomes visible at the previous interval', function (done) {
-        const interval = this.smartInterval;
+    it('should resume when page is becomes visible at the previous interval', function (done) {
+      const interval = this.smartInterval;
 
-        setTimeout(() => {
-          expect(interval.state.intervalId).toBeTruthy();
+      setTimeout(() => {
+        expect(interval.state.intervalId).toBeTruthy();
 
-          // simulates triggering of visibilitychange event
-          interval.handleVisibilityChange({ target: { visibilityState: 'hidden' } });
+        // simulates triggering of visibilitychange event
+        interval.handleVisibilityChange({ target: { visibilityState: 'hidden' } });
 
-          expect(interval.state.intervalId).toBeUndefined();
+        expect(interval.state.intervalId).toBeUndefined();
 
-          // simulates triggering of visibilitychange event
-          interval.handleVisibilityChange({ target: { visibilityState: 'visible' } });
+        // simulates triggering of visibilitychange event
+        interval.handleVisibilityChange({ target: { visibilityState: 'visible' } });
 
-          expect(interval.state.intervalId).toBeTruthy();
+        expect(interval.state.intervalId).toBeTruthy();
 
-          done();
-        }, DEFAULT_SHORT_TIMEOUT);
-      });
+        done();
+      }, DEFAULT_SHORT_TIMEOUT);
+    });
 
-      it('should cancel on page unload', function (done) {
-        const interval = this.smartInterval;
+    it('should cancel on page unload', function (done) {
+      const interval = this.smartInterval;
 
-        setTimeout(() => {
-          $(document).triggerHandler('beforeunload');
-          expect(interval.state.intervalId).toBeUndefined();
-          expect(interval.getCurrentInterval()).toBe(interval.cfg.startingInterval);
-          done();
-        }, DEFAULT_SHORT_TIMEOUT);
-      });
+      setTimeout(() => {
+        $(document).triggerHandler('beforeunload');
+        expect(interval.state.intervalId).toBeUndefined();
+        expect(interval.getCurrentInterval()).toBe(interval.cfg.startingInterval);
+        done();
+      }, DEFAULT_SHORT_TIMEOUT);
+    });
 
-      it('should execute callback before first interval', function () {
-        const interval = createDefaultSmartInterval({ immediateExecution: true });
-        expect(interval.cfg.immediateExecution).toBeFalsy();
-      });
+    it('should execute callback before first interval', function () {
+      const interval = createDefaultSmartInterval({ immediateExecution: true });
+      expect(interval.cfg.immediateExecution).toBeFalsy();
     });
   });
-})(window.gl || (window.gl = {}));
+});
diff --git a/spec/javascripts/test_bundle.js b/spec/javascripts/test_bundle.js
index d4e134583c7..fd7aa332d17 100644
--- a/spec/javascripts/test_bundle.js
+++ b/spec/javascripts/test_bundle.js
@@ -11,6 +11,12 @@ const isHeadlessChrome = /\bHeadlessChrome\//.test(navigator.userAgent);
 Vue.config.devtools = !isHeadlessChrome;
 Vue.config.productionTip = false;
 
+let hasVueWarnings = false;
+Vue.config.warnHandler = (msg, vm, trace) => {
+  hasVueWarnings = true;
+  fail(`${msg}${trace}`);
+};
+
 Vue.use(VueResource);
 
 // enable test fixtures
@@ -34,11 +40,6 @@ window.addEventListener('unhandledrejection', (event) => {
   console.error(event.reason.stack || event.reason);
 });
 
-const checkUnhandledPromiseRejections = (done) => {
-  expect(hasUnhandledPromiseRejections).toBe(false);
-  done();
-};
-
 // HACK: Chrome 59 disconnects if there are too many synchronous tests in a row
 // because it appears to lock up the thread that communicates to Karma's socket
 // This async beforeEach gets called on every spec and releases the JS thread long
@@ -47,17 +48,6 @@ const checkUnhandledPromiseRejections = (done) => {
 // to run our unit tests.
 beforeEach(done => done());
 
-beforeAll(() => {
-  const origError = console.error;
-  spyOn(console, 'error').and.callFake((message) => {
-    if (/^\[Vue warn\]/.test(message)) {
-      fail(message);
-    } else {
-      origError(message);
-    }
-  });
-});
-
 const builtinVueHttpInterceptors = Vue.http.interceptors.slice();
 
 beforeEach(() => {
@@ -80,8 +70,22 @@ testsContext.keys().forEach(function (path) {
   }
 });
 
-it('has no unhandled Promise rejections', (done) => {
-  setTimeout(checkUnhandledPromiseRejections(done), 1000);
+describe('test errors', () => {
+  beforeAll((done) => {
+    if (hasUnhandledPromiseRejections || hasVueWarnings) {
+      setTimeout(done, 1000);
+    } else {
+      done();
+    }
+  });
+
+  it('has no unhandled Promise rejections', () => {
+    expect(hasUnhandledPromiseRejections).toBe(false);
+  });
+
+  it('has no Vue warnings', () => {
+    expect(hasVueWarnings).toBe(false);
+  });
 });
 
 // if we're generating coverage reports, make sure to include all files so
diff --git a/spec/javascripts/vue_mr_widget/components/mr_widget_pipeline_spec.js b/spec/javascripts/vue_mr_widget/components/mr_widget_pipeline_spec.js
index 33ed0cb4342..d7af956c9c1 100644
--- a/spec/javascripts/vue_mr_widget/components/mr_widget_pipeline_spec.js
+++ b/spec/javascripts/vue_mr_widget/components/mr_widget_pipeline_spec.js
@@ -1,140 +1,147 @@
 import Vue from 'vue';
-import pipelineComponent from '~/vue_merge_request_widget/components/mr_widget_pipeline';
+import pipelineComponent from '~/vue_merge_request_widget/components/mr_widget_pipeline.vue';
+import mountComponent from '../../helpers/vue_mount_component_helper';
 import mockData from '../mock_data';
 
-const createComponent = (mr) => {
-  const Component = Vue.extend(pipelineComponent);
-  return new Component({
-    el: document.createElement('div'),
-    propsData: { mr },
-  });
-};
-
 describe('MRWidgetPipeline', () => {
-  describe('props', () => {
-    it('should have props', () => {
-      const { mr } = pipelineComponent.props;
+  let vm;
+  let Component;
 
-      expect(mr.type instanceof Object).toBeTruthy();
-      expect(mr.required).toBeTruthy();
-    });
+  beforeEach(() => {
+    Component = Vue.extend(pipelineComponent);
   });
 
-  describe('components', () => {
-    it('should have components added', () => {
-      expect(pipelineComponent.components['pipeline-stage']).toBeDefined();
-      expect(pipelineComponent.components.ciIcon).toBeDefined();
-    });
+  afterEach(() => {
+    vm.$destroy();
   });
 
   describe('computed', () => {
     describe('hasPipeline', () => {
       it('should return true when there is a pipeline', () => {
-        expect(Object.keys(mockData.pipeline).length).toBeGreaterThan(0);
-
-        const vm = createComponent({
+        vm = mountComponent(Component, {
           pipeline: mockData.pipeline,
+          ciStatus: 'success',
+          hasCi: true,
         });
 
-        expect(vm.hasPipeline).toBeTruthy();
+        expect(vm.hasPipeline).toEqual(true);
       });
 
       it('should return false when there is no pipeline', () => {
-        const vm = createComponent({
-          pipeline: null,
+        vm = mountComponent(Component, {
+          pipeline: {},
         });
 
-        expect(vm.hasPipeline).toBeFalsy();
+        expect(vm.hasPipeline).toEqual(false);
       });
     });
 
     describe('hasCIError', () => {
       it('should return false when there is no CI error', () => {
-        const vm = createComponent({
+        vm = mountComponent(Component, {
           pipeline: mockData.pipeline,
-          hasCI: true,
+          hasCi: true,
           ciStatus: 'success',
         });
 
-        expect(vm.hasCIError).toBeFalsy();
+        expect(vm.hasCIError).toEqual(false);
       });
 
       it('should return true when there is a CI error', () => {
-        const vm = createComponent({
+        vm = mountComponent(Component, {
           pipeline: mockData.pipeline,
-          hasCI: true,
+          hasCi: true,
           ciStatus: null,
         });
 
-        expect(vm.hasCIError).toBeTruthy();
+        expect(vm.hasCIError).toEqual(true);
       });
     });
   });
 
-  describe('template', () => {
-    let vm;
-    let el;
-    const { pipeline } = mockData;
-    const mr = {
-      hasCI: true,
-      ciStatus: 'success',
-      pipelineDetailedStatus: pipeline.details.status,
-      pipeline,
-    };
-
-    beforeEach(() => {
-      vm = createComponent(mr);
-      el = vm.$el;
-    });
+  describe('rendered output', () => {
+    it('should render CI error', () => {
+      vm = mountComponent(Component, {
+        pipeline: mockData.pipeline,
+        hasCi: true,
+        ciStatus: null,
+      });
 
-    it('should render template elements correctly', () => {
-      expect(el.classList.contains('mr-widget-heading')).toBeTruthy();
-      expect(el.querySelectorAll('.ci-status-icon.ci-status-icon-success').length).toEqual(1);
-      expect(el.querySelector('.pipeline-id').textContent).toContain(`#${pipeline.id}`);
-      expect(el.innerText).toContain('passed');
-      expect(el.querySelector('.pipeline-id').getAttribute('href')).toEqual(pipeline.path);
-      expect(el.querySelectorAll('.stage-container').length).toEqual(2);
-      expect(el.querySelector('.js-ci-error')).toEqual(null);
-      expect(el.querySelector('.js-commit-link').getAttribute('href')).toEqual(pipeline.commit.commit_path);
-      expect(el.querySelector('.js-commit-link').textContent).toContain(pipeline.commit.short_id);
-      expect(el.querySelector('.js-mr-coverage').textContent).toContain(`Coverage ${pipeline.coverage}%`);
+      expect(
+        vm.$el.querySelector('.media-body').textContent.trim(),
+      ).toEqual('Could not connect to the CI server. Please check your settings and try again');
     });
 
-    it('should list single stage', (done) => {
-      pipeline.details.stages.splice(0, 1);
+    describe('with a pipeline', () => {
+      beforeEach(() => {
+        vm = mountComponent(Component, {
+          pipeline: mockData.pipeline,
+          hasCi: true,
+          ciStatus: 'success',
+        });
+      });
+
+      it('should render pipeline ID', () => {
+        expect(
+          vm.$el.querySelector('.pipeline-id').textContent.trim(),
+        ).toEqual(`#${mockData.pipeline.id}`);
+      });
+
+      it('should render pipeline status and commit id', () => {
+        expect(
+          vm.$el.querySelector('.media-body').textContent.trim(),
+        ).toContain(mockData.pipeline.details.status.label);
 
-      Vue.nextTick(() => {
-        expect(el.querySelectorAll('.stage-container button').length).toEqual(1);
-        done();
+        expect(
+          vm.$el.querySelector('.js-commit-link').textContent.trim(),
+        ).toEqual(mockData.pipeline.commit.short_id);
+
+        expect(
+          vm.$el.querySelector('.js-commit-link').getAttribute('href'),
+        ).toEqual(mockData.pipeline.commit.commit_path);
       });
-    });
 
-    it('should not have stages when there is no stage', (done) => {
-      vm.mr.pipeline.details.stages = [];
+      it('should render pipeline graph', () => {
+        expect(vm.$el.querySelector('.mr-widget-pipeline-graph')).toBeDefined();
+        expect(vm.$el.querySelectorAll('.stage-container').length).toEqual(mockData.pipeline.details.stages.length);
+      });
 
-      Vue.nextTick(() => {
-        expect(el.querySelectorAll('.stage-container button').length).toEqual(0);
-        done();
+      it('should render coverage information', () => {
+        expect(
+          vm.$el.querySelector('.media-body').textContent,
+        ).toContain(`Coverage ${mockData.pipeline.coverage}`);
       });
     });
 
-    it('should not have coverage text when pipeline has no coverage info', (done) => {
-      vm.mr.pipeline.coverage = null;
+    describe('without coverage', () => {
+      it('should not render a coverage', () => {
+        const mockCopy = Object.assign({}, mockData);
+        delete mockCopy.pipeline.coverage;
 
-      Vue.nextTick(() => {
-        expect(el.querySelector('.js-mr-coverage')).toEqual(null);
-        done();
+        vm = mountComponent(Component, {
+          pipeline: mockCopy.pipeline,
+          hasCi: true,
+          ciStatus: 'success',
+        });
+
+        expect(
+          vm.$el.querySelector('.media-body').textContent,
+        ).not.toContain('Coverage');
       });
     });
 
-    it('should show CI error when there is a CI error', (done) => {
-      vm.mr.ciStatus = null;
+    describe('without a pipeline graph', () => {
+      it('should not render a pipeline graph', () => {
+        const mockCopy = Object.assign({}, mockData);
+        delete mockCopy.pipeline.details.stages;
+
+        vm = mountComponent(Component, {
+          pipeline: mockCopy.pipeline,
+          hasCi: true,
+          ciStatus: 'success',
+        });
 
-      Vue.nextTick(() => {
-        expect(el.querySelectorAll('.js-ci-error').length).toEqual(1);
-        expect(el.innerText).toContain('Could not connect to the CI server');
-        expect(el.querySelector('.ci-status-icon svg use').getAttribute('xlink:href')).toContain('status_failed');
-        done();
+        expect(vm.$el.querySelector('.js-mini-pipeline-graph')).toEqual(null);
       });
     });
   });
diff --git a/spec/javascripts/vue_mr_widget/mock_data.js b/spec/javascripts/vue_mr_widget/mock_data.js
index 0795d0aaa82..1ad7c2d8efa 100644
--- a/spec/javascripts/vue_mr_widget/mock_data.js
+++ b/spec/javascripts/vue_mr_widget/mock_data.js
@@ -202,7 +202,6 @@ export default {
   "revert_in_fork_path": "/root/acets-app/forks?continue%5Bnotice%5D=You%27re+not+allowed+to+make+changes+to+this+project+directly.+A+fork+of+this+project+has+been+created+that+you+can+make+changes+in%2C+so+you+can+submit+a+merge+request.+Try+to+cherry-pick+this+commit+again.&continue%5Bnotice_now%5D=You%27re+not+allowed+to+make+changes+to+this+project+directly.+A+fork+of+this+project+is+being+created+that+you+can+make+changes+in%2C+so+you+can+submit+a+merge+request.&continue%5Bto%5D=%2Froot%2Facets-app%2Fmerge_requests%2F22&namespace_key=1",
   "email_patches_path": "/root/acets-app/merge_requests/22.patch",
   "plain_diff_path": "/root/acets-app/merge_requests/22.diff",
-  "ci_status_path": "/root/acets-app/merge_requests/22/ci_status",
   "status_path": "/root/acets-app/merge_requests/22.json",
   "merge_check_path": "/root/acets-app/merge_requests/22/merge_check",
   "ci_environments_status_url": "/root/acets-app/merge_requests/22/ci_environments_status",
diff --git a/spec/javascripts/vue_mr_widget/mr_widget_options_spec.js b/spec/javascripts/vue_mr_widget/mr_widget_options_spec.js
index e4324e91502..9e6d0aa472c 100644
--- a/spec/javascripts/vue_mr_widget/mr_widget_options_spec.js
+++ b/spec/javascripts/vue_mr_widget/mr_widget_options_spec.js
@@ -1,16 +1,9 @@
 import Vue from 'vue';
-import MRWidgetService from '~/vue_merge_request_widget/services/mr_widget_service';
 import mrWidgetOptions from '~/vue_merge_request_widget/mr_widget_options';
 import eventHub from '~/vue_merge_request_widget/event_hub';
 import notify from '~/lib/utils/notify';
 import mockData from './mock_data';
-
-const createComponent = () => {
-  delete mrWidgetOptions.el; // Prevent component mounting
-  gl.mrWidgetData = mockData;
-  const Component = Vue.extend(mrWidgetOptions);
-  return new Component();
-};
+import mountComponent from '../helpers/vue_mount_component_helper';
 
 const returnPromise = data => new Promise((resolve) => {
   resolve({
@@ -23,9 +16,16 @@ const returnPromise = data => new Promise((resolve) => {
 
 describe('mrWidgetOptions', () => {
   let vm;
+  let MrWidgetOptions;
 
   beforeEach(() => {
-    vm = createComponent();
+    // Prevent component mounting
+    delete mrWidgetOptions.el;
+
+    MrWidgetOptions = Vue.extend(mrWidgetOptions);
+    vm = mountComponent(MrWidgetOptions, {
+      mrData: { ...mockData },
+    });
   });
 
   describe('data', () => {
@@ -78,7 +78,7 @@ describe('mrWidgetOptions', () => {
       });
 
       it('should return true if there is relatedLinks in MR', () => {
-        vm.mr.relatedLinks = {};
+        Vue.set(vm.mr, 'relatedLinks', {});
         expect(vm.shouldRenderRelatedLinks).toBeTruthy();
       });
     });
@@ -121,24 +121,28 @@ describe('mrWidgetOptions', () => {
 
     describe('initPolling', () => {
       it('should call SmartInterval', () => {
-        spyOn(gl, 'SmartInterval').and.returnValue({
-          resume() {},
-          stopTimer() {},
-        });
+        spyOn(vm, 'checkStatus').and.returnValue(Promise.resolve());
+        jasmine.clock().install();
         vm.initPolling();
 
+        expect(vm.checkStatus).not.toHaveBeenCalled();
+
+        jasmine.clock().tick(10000);
+
         expect(vm.pollingInterval).toBeDefined();
-        expect(gl.SmartInterval).toHaveBeenCalled();
+        expect(vm.checkStatus).toHaveBeenCalled();
+
+        jasmine.clock().uninstall();
       });
     });
 
     describe('initDeploymentsPolling', () => {
       it('should call SmartInterval', () => {
-        spyOn(gl, 'SmartInterval');
+        spyOn(vm, 'fetchDeployments').and.returnValue(Promise.resolve());
         vm.initDeploymentsPolling();
 
         expect(vm.deploymentsInterval).toBeDefined();
-        expect(gl.SmartInterval).toHaveBeenCalled();
+        expect(vm.fetchDeployments).toHaveBeenCalled();
       });
     });
 
@@ -312,28 +316,6 @@ describe('mrWidgetOptions', () => {
         expect(vm.pollingInterval.stopTimer).toHaveBeenCalled();
       });
     });
-
-    describe('createService', () => {
-      it('should instantiate a Service', () => {
-        const endpoints = {
-          mergePath: '/nice/path',
-          mergeCheckPath: '/nice/path',
-          cancelAutoMergePath: '/nice/path',
-          removeWIPPath: '/nice/path',
-          sourceBranchPath: '/nice/path',
-          ciEnvironmentsStatusPath: '/nice/path',
-          statusPath: '/nice/path',
-          mergeActionsContentPath: '/nice/path',
-        };
-
-        const serviceInstance = vm.createService(endpoints);
-        const isInstanceOfMRService = serviceInstance instanceof MRWidgetService;
-        expect(isInstanceOfMRService).toBe(true);
-        Object.keys(serviceInstance).forEach((key) => {
-          expect(serviceInstance[key]).toBeDefined();
-        });
-      });
-    });
   });
 
   describe('components', () => {
diff --git a/spec/javascripts/vue_mr_widget/services/mr_widget_service_spec.js b/spec/javascripts/vue_mr_widget/services/mr_widget_service_spec.js
deleted file mode 100644
index e667b4b3677..00000000000
--- a/spec/javascripts/vue_mr_widget/services/mr_widget_service_spec.js
+++ /dev/null
@@ -1,47 +0,0 @@
-import Vue from 'vue';
-import VueResource from 'vue-resource';
-import MRWidgetService from '~/vue_merge_request_widget/services/mr_widget_service';
-
-Vue.use(VueResource);
-
-describe('MRWidgetService', () => {
-  const mr = {
-    mergePath: './',
-    mergeCheckPath: './',
-    cancelAutoMergePath: './',
-    removeWIPPath: './',
-    sourceBranchPath: './',
-    ciEnvironmentsStatusPath: './',
-    statusPath: './',
-    mergeActionsContentPath: './',
-    isServiceStore: true,
-  };
-
-  it('should have store and resources created in constructor', () => {
-    const service = new MRWidgetService(mr);
-
-    expect(service.mergeResource).toBeDefined();
-    expect(service.mergeCheckResource).toBeDefined();
-    expect(service.cancelAutoMergeResource).toBeDefined();
-    expect(service.removeWIPResource).toBeDefined();
-    expect(service.removeSourceBranchResource).toBeDefined();
-    expect(service.deploymentsResource).toBeDefined();
-    expect(service.pollResource).toBeDefined();
-    expect(service.mergeActionsContentResource).toBeDefined();
-  });
-
-  it('should have methods defined', () => {
-    window.history.pushState({}, null, '/');
-    const service = new MRWidgetService(mr);
-
-    expect(service.merge()).toBeDefined();
-    expect(service.cancelAutomaticMerge()).toBeDefined();
-    expect(service.removeWIP()).toBeDefined();
-    expect(service.removeSourceBranch()).toBeDefined();
-    expect(service.fetchDeployments()).toBeDefined();
-    expect(service.poll()).toBeDefined();
-    expect(service.checkStatus()).toBeDefined();
-    expect(service.fetchMergeActionsContent()).toBeDefined();
-    expect(MRWidgetService.stopEnvironment()).toBeDefined();
-  });
-});
diff --git a/spec/javascripts/vue_shared/components/issue/issue_warning_spec.js b/spec/javascripts/vue_shared/components/issue/issue_warning_spec.js
index 2cf4d8e00ed..24484796bf1 100644
--- a/spec/javascripts/vue_shared/components/issue/issue_warning_spec.js
+++ b/spec/javascripts/vue_shared/components/issue/issue_warning_spec.js
@@ -16,7 +16,7 @@ describe('Issue Warning Component', () => {
         isLocked: true,
       });
 
-      expect(vm.$el.querySelector('i').className).toEqual('fa icon fa-lock');
+      expect(vm.$el.querySelector('.icon use').href.baseVal).toMatch(/lock$/);
       expect(formatWarning(vm.$el.querySelector('span').textContent)).toEqual('This issue is locked. Only project members can comment.');
     });
   });
@@ -27,7 +27,7 @@ describe('Issue Warning Component', () => {
         isConfidential: true,
       });
 
-      expect(vm.$el.querySelector('i').className).toEqual('fa icon fa-eye-slash');
+      expect(vm.$el.querySelector('.icon use').href.baseVal).toMatch(/eye-slash$/);
       expect(formatWarning(vm.$el.querySelector('span').textContent)).toEqual('This is a confidential issue. Your comment will not be visible to the public.');
     });
   });
@@ -39,7 +39,7 @@ describe('Issue Warning Component', () => {
         isConfidential: true,
       });
 
-      expect(vm.$el.querySelector('i')).toBeFalsy();
+      expect(vm.$el.querySelector('.icon')).toBeFalsy();
       expect(formatWarning(vm.$el.querySelector('span').textContent)).toEqual('This issue is confidential and locked. People without permission will never get a notification and won\'t be able to comment.');
     });
   });
diff --git a/spec/javascripts/vue_shared/components/loading_button_spec.js b/spec/javascripts/vue_shared/components/loading_button_spec.js
index 97c8a08fcdd..c1eabdede00 100644
--- a/spec/javascripts/vue_shared/components/loading_button_spec.js
+++ b/spec/javascripts/vue_shared/components/loading_button_spec.js
@@ -66,6 +66,23 @@ describe('LoadingButton', function () {
     });
   });
 
+  describe('container class', () => {
+    it('should default to btn btn-align-content', () => {
+      vm = mountComponent(LoadingButton, {});
+      expect(vm.$el.classList.contains('btn')).toEqual(true);
+      expect(vm.$el.classList.contains('btn-align-content')).toEqual(true);
+    });
+
+    it('should be configurable through props', () => {
+      vm = mountComponent(LoadingButton, {
+        containerClass: 'test-class',
+      });
+      expect(vm.$el.classList.contains('btn')).toEqual(false);
+      expect(vm.$el.classList.contains('btn-align-content')).toEqual(false);
+      expect(vm.$el.classList.contains('test-class')).toEqual(true);
+    });
+  });
+
   describe('click callback prop', () => {
     it('calls given callback when normal', () => {
       vm = mountComponent(LoadingButton, {
diff --git a/spec/javascripts/vue_shared/components/markdown/field_spec.js b/spec/javascripts/vue_shared/components/markdown/field_spec.js
index 65c49b9f30b..24209be83fe 100644
--- a/spec/javascripts/vue_shared/components/markdown/field_spec.js
+++ b/spec/javascripts/vue_shared/components/markdown/field_spec.js
@@ -1,6 +1,12 @@
 import Vue from 'vue';
 import fieldComponent from '~/vue_shared/components/markdown/field.vue';
 
+function assertMarkdownTabs(isWrite, writeLink, previewLink, vm) {
+  expect(writeLink.parentNode.classList.contains('active')).toEqual(isWrite);
+  expect(previewLink.parentNode.classList.contains('active')).toEqual(!isWrite);
+  expect(vm.$el.querySelector('.md-preview').style.display).toEqual(isWrite ? 'none' : '');
+}
+
 describe('Markdown field component', () => {
   let vm;
 
@@ -39,6 +45,7 @@ describe('Markdown field component', () => {
 
     describe('markdown preview', () => {
       let previewLink;
+      let writeLink;
 
       beforeEach(() => {
         spyOn(Vue.http, 'post').and.callFake(() => new Promise((resolve) => {
@@ -53,7 +60,8 @@ describe('Markdown field component', () => {
           });
         }));
 
-        previewLink = vm.$el.querySelector('.nav-links li:nth-child(2) a');
+        previewLink = vm.$el.querySelector('.nav-links .js-preview-link');
+        writeLink = vm.$el.querySelector('.nav-links .js-write-link');
       });
 
       it('sets preview link as active', (done) => {
@@ -105,6 +113,23 @@ describe('Markdown field component', () => {
           done();
         }, 0);
       });
+
+      it('clicking already active write or preview link does nothing', (done) => {
+        writeLink.click();
+        Vue.nextTick()
+          .then(() => assertMarkdownTabs(true, writeLink, previewLink, vm))
+          .then(() => writeLink.click())
+          .then(() => Vue.nextTick())
+          .then(() => assertMarkdownTabs(true, writeLink, previewLink, vm))
+          .then(() => previewLink.click())
+          .then(() => Vue.nextTick())
+          .then(() => assertMarkdownTabs(false, writeLink, previewLink, vm))
+          .then(() => previewLink.click())
+          .then(() => Vue.nextTick())
+          .then(() => assertMarkdownTabs(false, writeLink, previewLink, vm))
+          .then(done)
+          .catch(done.fail);
+      });
     });
 
     describe('markdown buttons', () => {
diff --git a/spec/javascripts/vue_shared/components/markdown/header_spec.js b/spec/javascripts/vue_shared/components/markdown/header_spec.js
index 7110ff36937..edebd822295 100644
--- a/spec/javascripts/vue_shared/components/markdown/header_spec.js
+++ b/spec/javascripts/vue_shared/components/markdown/header_spec.js
@@ -43,11 +43,13 @@ describe('Markdown field header component', () => {
   it('emits toggle markdown event when clicking preview', () => {
     spyOn(vm, '$emit');
 
-    vm.$el.querySelector('li:nth-child(2) a').click();
+    vm.$el.querySelector('.js-preview-link').click();
 
-    expect(
-      vm.$emit,
-    ).toHaveBeenCalledWith('toggle-markdown');
+    expect(vm.$emit).toHaveBeenCalledWith('preview-markdown');
+
+    vm.$el.querySelector('.js-write-link').click();
+
+    expect(vm.$emit).toHaveBeenCalledWith('write-markdown');
   });
 
   it('blurs preview link after click', (done) => {
diff --git a/spec/javascripts/vue_shared/components/skeleton_loading_container_spec.js b/spec/javascripts/vue_shared/components/skeleton_loading_container_spec.js
new file mode 100644
index 00000000000..a5db0b2c59e
--- /dev/null
+++ b/spec/javascripts/vue_shared/components/skeleton_loading_container_spec.js
@@ -0,0 +1,49 @@
+import Vue from 'vue';
+import skeletonLoadingContainer from '~/vue_shared/components/skeleton_loading_container.vue';
+import mountComponent from '../../helpers/vue_mount_component_helper';
+
+describe('Skeleton loading container', () => {
+  let vm;
+
+  beforeEach(() => {
+    const component = Vue.extend(skeletonLoadingContainer);
+    vm = mountComponent(component);
+  });
+
+  afterEach(() => {
+    vm.$destroy();
+  });
+
+  it('renders 6 skeleton lines by default', () => {
+    expect(vm.$el.querySelector('.skeleton-line-6')).not.toBeNull();
+  });
+
+  it('renders in full mode by default', () => {
+    expect(vm.$el.classList.contains('animation-container-small')).toBeFalsy();
+  });
+
+  describe('small', () => {
+    beforeEach((done) => {
+      vm.small = true;
+
+      Vue.nextTick(done);
+    });
+
+    it('renders in small mode', () => {
+      expect(vm.$el.classList.contains('animation-container-small')).toBeTruthy();
+    });
+  });
+
+  describe('lines', () => {
+    beforeEach((done) => {
+      vm.lines = 5;
+
+      Vue.nextTick(done);
+    });
+
+    it('renders 5 lines', () => {
+      expect(vm.$el.querySelector('.skeleton-line-5')).not.toBeNull();
+      expect(vm.$el.querySelector('.skeleton-line-6')).toBeNull();
+    });
+  });
+});
diff --git a/spec/lib/banzai/commit_renderer_spec.rb b/spec/lib/banzai/commit_renderer_spec.rb
index 049d025a5b9..84adaebdcbe 100644
--- a/spec/lib/banzai/commit_renderer_spec.rb
+++ b/spec/lib/banzai/commit_renderer_spec.rb
@@ -10,7 +10,7 @@ describe Banzai::CommitRenderer do
 
       described_class::ATTRIBUTES.each do |attr|
         expect_any_instance_of(Banzai::ObjectRenderer).to receive(:render).with([project.commit], attr).once.and_call_original
-        expect(Banzai::Renderer).to receive(:cacheless_render_field).with(project.commit, attr)
+        expect(Banzai::Renderer).to receive(:cacheless_render_field).with(project.commit, attr, {})
       end
 
       described_class.render([project.commit], project, user)
diff --git a/spec/lib/banzai/filter/absolute_link_filter_spec.rb b/spec/lib/banzai/filter/absolute_link_filter_spec.rb
new file mode 100644
index 00000000000..a3ad056efcd
--- /dev/null
+++ b/spec/lib/banzai/filter/absolute_link_filter_spec.rb
@@ -0,0 +1,58 @@
+require 'spec_helper'
+
+describe Banzai::Filter::AbsoluteLinkFilter do
+  def filter(doc, context = {})
+    described_class.call(doc, context)
+  end
+
+  context 'with html links' do
+    context 'if only_path is false' do
+      let(:only_path_context) do
+        { only_path: false }
+      end
+      let(:fake_url) { 'http://www.example.com' }
+
+      before do
+        allow(Gitlab.config.gitlab).to receive(:url).and_return(fake_url)
+      end
+
+      context 'has the .gfm class' do
+        it 'converts a relative url into absolute' do
+          doc = filter(link('/foo', 'gfm'), only_path_context)
+          expect(doc.at_css('a')['href']).to eq "#{fake_url}/foo"
+        end
+
+        it 'does not change the url if it already absolute' do
+          doc = filter(link("#{fake_url}/foo", 'gfm'), only_path_context)
+          expect(doc.at_css('a')['href']).to eq "#{fake_url}/foo"
+        end
+
+        context 'if relative_url_root is set' do
+          it 'joins the url without without doubling the path' do
+            allow(Gitlab.config.gitlab).to receive(:url).and_return("#{fake_url}/gitlab/")
+            doc = filter(link("/gitlab/foo", 'gfm'), only_path_context)
+            expect(doc.at_css('a')['href']).to eq "#{fake_url}/gitlab/foo"
+          end
+        end
+      end
+
+      context 'has not the .gfm class' do
+        it 'does not convert a relative url into absolute' do
+          doc = filter(link('/foo'), only_path_context)
+          expect(doc.at_css('a')['href']).to eq '/foo'
+        end
+      end
+    end
+
+    context 'if only_path is not false' do
+      it 'does not convert a relative url into absolute' do
+        expect(filter(link('/foo', 'gfm')).at_css('a')['href']).to eq '/foo'
+        expect(filter(link('/foo')).at_css('a')['href']).to eq '/foo'
+      end
+    end
+  end
+
+  def link(path, css_class = '')
+    %(<a class="#{css_class}" href="#{path}">example</a>)
+  end
+end
diff --git a/spec/lib/banzai/filter/milestone_reference_filter_spec.rb b/spec/lib/banzai/filter/milestone_reference_filter_spec.rb
index 84578668133..6a9087d2e59 100644
--- a/spec/lib/banzai/filter/milestone_reference_filter_spec.rb
+++ b/spec/lib/banzai/filter/milestone_reference_filter_spec.rb
@@ -294,8 +294,7 @@ describe Banzai::Filter::MilestoneReferenceFilter do
     end
   end
 
-  context 'project milestones' do
-    let(:milestone) { create(:milestone, project: project) }
+  shared_context 'project milestones' do
     let(:reference) { milestone.to_reference(format: :iid) }
 
     include_examples 'reference parsing'
@@ -309,8 +308,7 @@ describe Banzai::Filter::MilestoneReferenceFilter do
     it_behaves_like 'cross project shorthand reference'
   end
 
-  context 'group milestones' do
-    let(:milestone) { create(:milestone, group: group) }
+  shared_context 'group milestones' do
     let(:reference) { milestone.to_reference(format: :name) }
 
     include_examples 'reference parsing'
@@ -354,4 +352,32 @@ describe Banzai::Filter::MilestoneReferenceFilter do
       expect(result.css('a').first.attr('href')).to eq(urls.milestone_url(milestone))
     end
   end
+
+  context 'when milestone is open' do
+    context 'project milestones' do
+      let(:milestone) { create(:milestone, project: project) }
+
+      include_context 'project milestones'
+    end
+
+    context 'group milestones' do
+      let(:milestone) { create(:milestone, group: group) }
+
+      include_context 'group milestones'
+    end
+  end
+
+  context 'when milestone is closed' do
+    context 'project milestones' do
+      let(:milestone) { create(:milestone, :closed, project: project) }
+
+      include_context 'project milestones'
+    end
+
+    context 'group milestones' do
+      let(:milestone) { create(:milestone, :closed, group: group) }
+
+      include_context 'group milestones'
+    end
+  end
 end
diff --git a/spec/lib/banzai/note_renderer_spec.rb b/spec/lib/banzai/note_renderer_spec.rb
deleted file mode 100644
index 32764bee5eb..00000000000
--- a/spec/lib/banzai/note_renderer_spec.rb
+++ /dev/null
@@ -1,24 +0,0 @@
-require 'spec_helper'
-
-describe Banzai::NoteRenderer do
-  describe '.render' do
-    it 'renders a Note' do
-      note = double(:note)
-      project = double(:project)
-      wiki = double(:wiki)
-      user = double(:user)
-
-      expect(Banzai::ObjectRenderer).to receive(:new)
-        .with(project, user,
-             requested_path: 'foo',
-             project_wiki: wiki,
-             ref: 'bar')
-        .and_call_original
-
-      expect_any_instance_of(Banzai::ObjectRenderer)
-        .to receive(:render).with([note], :note)
-
-      described_class.render([note], project, user, 'foo', wiki, 'bar')
-    end
-  end
-end
diff --git a/spec/lib/banzai/object_renderer_spec.rb b/spec/lib/banzai/object_renderer_spec.rb
index b172a1b718c..074d521a5c6 100644
--- a/spec/lib/banzai/object_renderer_spec.rb
+++ b/spec/lib/banzai/object_renderer_spec.rb
@@ -22,7 +22,7 @@ describe Banzai::ObjectRenderer do
       end
 
       it 'retrieves field content using Banzai::Renderer.render_field' do
-        expect(Banzai::Renderer).to receive(:render_field).with(object, :note).and_call_original
+        expect(Banzai::Renderer).to receive(:render_field).with(object, :note, {}).and_call_original
 
         renderer.render([object], :note)
       end
@@ -68,7 +68,7 @@ describe Banzai::ObjectRenderer do
       end
 
       it 'retrieves field content using Banzai::Renderer.cacheless_render_field' do
-        expect(Banzai::Renderer).to receive(:cacheless_render_field).with(commit, :title).and_call_original
+        expect(Banzai::Renderer).to receive(:cacheless_render_field).with(commit, :title, {}).and_call_original
 
         renderer.render([commit], :title)
       end
diff --git a/spec/lib/banzai/renderer_spec.rb b/spec/lib/banzai/renderer_spec.rb
index 81a04a2d46d..650cecfc778 100644
--- a/spec/lib/banzai/renderer_spec.rb
+++ b/spec/lib/banzai/renderer_spec.rb
@@ -18,7 +18,7 @@ describe Banzai::Renderer do
       let(:commit) { create(:project, :repository).commit }
 
       it 'returns cacheless render field' do
-        expect(renderer).to receive(:cacheless_render_field).with(commit, :title)
+        expect(renderer).to receive(:cacheless_render_field).with(commit, :title, {})
 
         renderer.render_field(commit, :title)
       end
diff --git a/spec/lib/container_registry/path_spec.rb b/spec/lib/container_registry/path_spec.rb
index 84cacdd3f0d..010deae822c 100644
--- a/spec/lib/container_registry/path_spec.rb
+++ b/spec/lib/container_registry/path_spec.rb
@@ -86,6 +86,24 @@ describe ContainerRegistry::Path do
 
       it { is_expected.to be_valid }
     end
+
+    context 'when path contains double underscore' do
+      let(:path) { 'my/repository__name' }
+
+      it { is_expected.to be_valid }
+    end
+
+    context 'when path contains invalid separator with dot' do
+      let(:path) { 'some/registry-.name' }
+
+      it { is_expected.not_to be_valid }
+    end
+
+    context 'when path contains invalid separator with underscore' do
+      let(:path) { 'some/registry._name' }
+
+      it { is_expected.not_to be_valid }
+    end
   end
 
   describe '#has_repository?' do
diff --git a/spec/lib/feature_spec.rb b/spec/lib/feature_spec.rb
index 1076c63b5f2..10020511bf8 100644
--- a/spec/lib/feature_spec.rb
+++ b/spec/lib/feature_spec.rb
@@ -13,6 +13,47 @@ describe Feature do
     end
   end
 
+  describe '.persisted_names' do
+    it 'returns the names of the persisted features' do
+      Feature::FlipperFeature.create!(key: 'foo')
+
+      expect(described_class.persisted_names).to eq(%w[foo])
+    end
+
+    it 'returns an empty Array when no features are presisted' do
+      expect(described_class.persisted_names).to be_empty
+    end
+
+    it 'caches the feature names when request store is active', :request_store do
+      Feature::FlipperFeature.create!(key: 'foo')
+
+      expect(Feature::FlipperFeature)
+        .to receive(:feature_names)
+        .once
+        .and_call_original
+
+      2.times do
+        expect(described_class.persisted_names).to eq(%w[foo])
+      end
+    end
+  end
+
+  describe '.persisted?' do
+    it 'returns true for a persisted feature' do
+      Feature::FlipperFeature.create!(key: 'foo')
+
+      feature = double(:feature, name: 'foo')
+
+      expect(described_class.persisted?(feature)).to eq(true)
+    end
+
+    it 'returns false for a feature that is not persisted' do
+      feature = double(:feature, name: 'foo')
+
+      expect(described_class.persisted?(feature)).to eq(false)
+    end
+  end
+
   describe '.all' do
     let(:features) { Set.new }
 
diff --git a/spec/lib/github/client_spec.rb b/spec/lib/github/client_spec.rb
deleted file mode 100644
index b846096fe25..00000000000
--- a/spec/lib/github/client_spec.rb
+++ /dev/null
@@ -1,34 +0,0 @@
-require 'spec_helper'
-
-describe Github::Client do
-  let(:connection) { spy }
-  let(:rate_limit) { double(get: [false, 1]) }
-  let(:client) { described_class.new({}) }
-  let(:results) { double }
-  let(:response) { double }
-
-  before do
-    allow(Faraday).to receive(:new).and_return(connection)
-    allow(Github::RateLimit).to receive(:new).with(connection).and_return(rate_limit)
-  end
-
-  describe '#get' do
-    before do
-      allow(Github::Response).to receive(:new).with(results).and_return(response)
-    end
-
-    it 'uses a default per_page param' do
-      expect(connection).to receive(:get).with('/foo', per_page: 100).and_return(results)
-
-      expect(client.get('/foo')).to eq(response)
-    end
-
-    context 'with per_page given' do
-      it 'overwrites the default per_page' do
-        expect(connection).to receive(:get).with('/foo', per_page: 30).and_return(results)
-
-        expect(client.get('/foo', per_page: 30)).to eq(response)
-      end
-    end
-  end
-end
diff --git a/spec/lib/github/import/legacy_diff_note_spec.rb b/spec/lib/github/import/legacy_diff_note_spec.rb
deleted file mode 100644
index 8c50b46cacb..00000000000
--- a/spec/lib/github/import/legacy_diff_note_spec.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-require 'spec_helper'
-
-describe Github::Import::LegacyDiffNote do
-  describe '#type' do
-    it 'returns the original note type' do
-      expect(described_class.new.type).to eq('LegacyDiffNote')
-    end
-  end
-end
diff --git a/spec/lib/github/import/note_spec.rb b/spec/lib/github/import/note_spec.rb
deleted file mode 100644
index fcdccd9e097..00000000000
--- a/spec/lib/github/import/note_spec.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-require 'spec_helper'
-
-describe Github::Import::Note do
-  describe '#type' do
-    it 'returns the original note type' do
-      expect(described_class.new.type).to eq('Note')
-    end
-  end
-end
diff --git a/spec/lib/gitlab/auth_spec.rb b/spec/lib/gitlab/auth_spec.rb
index 54a853c9ce3..3164d2ebf04 100644
--- a/spec/lib/gitlab/auth_spec.rb
+++ b/spec/lib/gitlab/auth_spec.rb
@@ -133,6 +133,25 @@ describe Gitlab::Auth do
 
         gl_auth.find_for_git_client(user.username, token, project: nil, ip: 'ip')
       end
+
+      it 'grants deploy key write permissions' do
+        project = create(:project)
+        key = create(:deploy_key, can_push: true)
+        create(:deploy_keys_project, deploy_key: key, project: project)
+        token = Gitlab::LfsToken.new(key).token
+
+        expect(gl_auth).to receive(:rate_limit!).with('ip', success: true, login: "lfs+deploy-key-#{key.id}")
+        expect(gl_auth.find_for_git_client("lfs+deploy-key-#{key.id}", token, project: project, ip: 'ip')).to eq(Gitlab::Auth::Result.new(key, nil, :lfs_deploy_token, read_write_authentication_abilities))
+      end
+
+      it 'does not grant deploy key write permissions' do
+        project = create(:project)
+        key = create(:deploy_key, can_push: true)
+        token = Gitlab::LfsToken.new(key).token
+
+        expect(gl_auth).to receive(:rate_limit!).with('ip', success: true, login: "lfs+deploy-key-#{key.id}")
+        expect(gl_auth.find_for_git_client("lfs+deploy-key-#{key.id}", token, project: project, ip: 'ip')).to eq(Gitlab::Auth::Result.new(key, nil, :lfs_deploy_token, read_authentication_abilities))
+      end
     end
 
     context 'while using OAuth tokens as passwords' do
@@ -326,10 +345,15 @@ describe Gitlab::Auth do
     ]
   end
 
-  def full_authentication_abilities
+  def read_write_authentication_abilities
     read_authentication_abilities + [
       :push_code,
-      :create_container_image,
+      :create_container_image
+    ]
+  end
+
+  def full_authentication_abilities
+    read_write_authentication_abilities + [
       :admin_container_image
     ]
   end
diff --git a/spec/lib/gitlab/background_migration/create_fork_network_memberships_range_spec.rb b/spec/lib/gitlab/background_migration/create_fork_network_memberships_range_spec.rb
index 1a4ea2bac48..79d2c071446 100644
--- a/spec/lib/gitlab/background_migration/create_fork_network_memberships_range_spec.rb
+++ b/spec/lib/gitlab/background_migration/create_fork_network_memberships_range_spec.rb
@@ -93,7 +93,14 @@ describe Gitlab::BackgroundMigration::CreateForkNetworkMembershipsRange, :migrat
   end
 
   it 'knows it is finished for this range' do
-    expect(migration.missing_members?(1, 7)).to be_falsy
+    expect(migration.missing_members?(1, 8)).to be_falsy
+  end
+
+  it 'does not miss members for forks of forks for which the root was deleted' do
+    forked_project_links.create(id: 9, forked_from_project_id: base1_fork1.id, forked_to_project_id: create(:project).id)
+    base1.destroy
+
+    expect(migration.missing_members?(7, 10)).to be_falsy
   end
 
   context 'with more forks' do
diff --git a/spec/lib/gitlab/background_migration/populate_fork_networks_range_spec.rb b/spec/lib/gitlab/background_migration/populate_fork_networks_range_spec.rb
index 2c2684a6fc9..994992f79d4 100644
--- a/spec/lib/gitlab/background_migration/populate_fork_networks_range_spec.rb
+++ b/spec/lib/gitlab/background_migration/populate_fork_networks_range_spec.rb
@@ -3,12 +3,9 @@ require 'spec_helper'
 describe Gitlab::BackgroundMigration::PopulateForkNetworksRange, :migration, schema: 20170929131201 do
   let(:migration) { described_class.new }
   let(:base1) { create(:project) }
-  let(:base1_fork1) { create(:project) }
-  let(:base1_fork2) { create(:project) }
 
   let(:base2) { create(:project) }
   let(:base2_fork1) { create(:project) }
-  let(:base2_fork2) { create(:project) }
 
   let!(:forked_project_links) { table(:forked_project_links) }
   let!(:fork_networks) { table(:fork_networks) }
@@ -21,21 +18,24 @@ describe Gitlab::BackgroundMigration::PopulateForkNetworksRange, :migration, sch
     # A normal fork link
     forked_project_links.create(id: 1,
                                 forked_from_project_id: base1.id,
-                                forked_to_project_id: base1_fork1.id)
+                                forked_to_project_id: create(:project).id)
     forked_project_links.create(id: 2,
                                 forked_from_project_id: base1.id,
-                                forked_to_project_id: base1_fork2.id)
-
+                                forked_to_project_id: create(:project).id)
     forked_project_links.create(id: 3,
                                 forked_from_project_id: base2.id,
                                 forked_to_project_id: base2_fork1.id)
+
+    # create a fork of a fork
     forked_project_links.create(id: 4,
                                 forked_from_project_id: base2_fork1.id,
                                 forked_to_project_id: create(:project).id)
-
     forked_project_links.create(id: 5,
-                                forked_from_project_id: base2.id,
-                                forked_to_project_id: base2_fork2.id)
+                                forked_from_project_id: create(:project).id,
+                                forked_to_project_id: create(:project).id)
+
+    # Stub out the calls to the other migrations
+    allow(BackgroundMigrationWorker).to receive(:perform_in)
 
     migration.perform(1, 3)
   end
@@ -80,11 +80,11 @@ describe Gitlab::BackgroundMigration::PopulateForkNetworksRange, :migration, sch
   end
 
   it 'only processes a single batch of links at a time' do
-    expect(fork_network_members.count).to eq(5)
+    expect(fork_networks.count).to eq(2)
 
     migration.perform(3, 5)
 
-    expect(fork_network_members.count).to eq(7)
+    expect(fork_networks.count).to eq(3)
   end
 
   it 'can be repeated without effect' do
diff --git a/spec/migrations/populate_merge_requests_latest_merge_request_diff_id_spec.rb b/spec/lib/gitlab/background_migration/populate_merge_requests_latest_merge_request_diff_id_spec.rb
index 4ea7f441f7c..0cb753c5853 100644
--- a/spec/migrations/populate_merge_requests_latest_merge_request_diff_id_spec.rb
+++ b/spec/lib/gitlab/background_migration/populate_merge_requests_latest_merge_request_diff_id_spec.rb
@@ -1,7 +1,6 @@
 require 'spec_helper'
-require Rails.root.join('db', 'post_migrate', '20171026082505_populate_merge_requests_latest_merge_request_diff_id')
 
-describe PopulateMergeRequestsLatestMergeRequestDiffId, :migration do
+describe Gitlab::BackgroundMigration::PopulateMergeRequestsLatestMergeRequestDiffId, :migration, schema: 20171026082505 do
   let(:projects_table) { table(:projects) }
   let(:merge_requests_table) { table(:merge_requests) }
   let(:merge_request_diffs_table) { table(:merge_request_diffs) }
@@ -27,30 +26,32 @@ describe PopulateMergeRequestsLatestMergeRequestDiffId, :migration do
     merge_request_diffs_table.where(merge_request_id: merge_request.id)
   end
 
-  describe '#up' do
+  describe '#perform' do
     it 'ignores MRs without diffs' do
       merge_request_without_diff = create_mr!('without_diff')
+      mr_id = merge_request_without_diff.id
 
       expect(merge_request_without_diff.latest_merge_request_diff_id).to be_nil
 
-      expect { migrate! }
+      expect { subject.perform(mr_id, mr_id) }
         .not_to change { merge_request_without_diff.reload.latest_merge_request_diff_id }
     end
 
     it 'ignores MRs that have a diff ID already set' do
       merge_request_with_multiple_diffs = create_mr!('with_multiple_diffs', diffs: 3)
       diff_id = diffs_for(merge_request_with_multiple_diffs).minimum(:id)
+      mr_id = merge_request_with_multiple_diffs.id
 
       merge_request_with_multiple_diffs.update!(latest_merge_request_diff_id: diff_id)
 
-      expect { migrate! }
+      expect { subject.perform(mr_id, mr_id) }
         .not_to change { merge_request_with_multiple_diffs.reload.latest_merge_request_diff_id }
     end
 
     it 'migrates multiple MR diffs to the correct values' do
       merge_requests = Array.new(3).map.with_index { |_, i| create_mr!(i, diffs: 3) }
 
-      migrate!
+      subject.perform(merge_requests.first.id, merge_requests.last.id)
 
       merge_requests.each do |merge_request|
         expect(merge_request.reload.latest_merge_request_diff_id)
diff --git a/spec/lib/gitlab/bare_repository_import/importer_spec.rb b/spec/lib/gitlab/bare_repository_import/importer_spec.rb
new file mode 100644
index 00000000000..7f3bf5fc41c
--- /dev/null
+++ b/spec/lib/gitlab/bare_repository_import/importer_spec.rb
@@ -0,0 +1,168 @@
+require 'spec_helper'
+
+describe Gitlab::BareRepositoryImport::Importer, repository: true do
+  let!(:admin) { create(:admin) }
+  let!(:base_dir) { Dir.mktmpdir + '/' }
+  let(:bare_repository) { Gitlab::BareRepositoryImport::Repository.new(base_dir, File.join(base_dir, "#{project_path}.git")) }
+
+  subject(:importer) { described_class.new(admin, bare_repository) }
+
+  before do
+    allow(described_class).to receive(:log)
+  end
+
+  after do
+    FileUtils.rm_rf(base_dir)
+  end
+
+  shared_examples 'importing a repository' do
+    describe '.execute' do
+      it 'creates a project for a repository in storage' do
+        FileUtils.mkdir_p(File.join(base_dir, "#{project_path}.git"))
+        fake_importer = double
+
+        expect(described_class).to receive(:new).and_return(fake_importer)
+        expect(fake_importer).to receive(:create_project_if_needed)
+
+        described_class.execute(base_dir)
+      end
+
+      it 'skips wiki repos' do
+        repo_dir = File.join(base_dir, 'the-group', 'the-project.wiki.git')
+        FileUtils.mkdir_p(File.join(repo_dir))
+
+        expect(described_class).to receive(:log).with(" * Skipping repo #{repo_dir}")
+        expect(described_class).not_to receive(:new)
+
+        described_class.execute(base_dir)
+      end
+
+      context 'without admin users' do
+        let(:admin) { nil }
+
+        it 'raises an error' do
+          expect { described_class.execute(base_dir) }.to raise_error(Gitlab::BareRepositoryImport::Importer::NoAdminError)
+        end
+      end
+    end
+
+    describe '#create_project_if_needed' do
+      it 'starts an import for a project that did not exist' do
+        expect(importer).to receive(:create_project)
+
+        importer.create_project_if_needed
+      end
+
+      it 'skips importing when the project already exists' do
+        project = create(:project, path: 'a-project', namespace: existing_group)
+
+        expect(importer).not_to receive(:create_project)
+        expect(importer).to receive(:log).with(" * #{project.name} (#{project_path}) exists")
+
+        importer.create_project_if_needed
+      end
+
+      it 'creates a project with the correct path in the database' do
+        importer.create_project_if_needed
+
+        expect(Project.find_by_full_path(project_path)).not_to be_nil
+      end
+
+      it 'creates the Git repo in disk' do
+        FileUtils.mkdir_p(File.join(base_dir, "#{project_path}.git"))
+
+        importer.create_project_if_needed
+
+        project = Project.find_by_full_path(project_path)
+
+        expect(File).to exist(File.join(project.repository_storage_path, project.disk_path + '.git'))
+      end
+
+      context 'hashed storage enabled' do
+        it 'creates a project with the correct path in the database' do
+          stub_application_setting(hashed_storage_enabled: true)
+
+          importer.create_project_if_needed
+
+          expect(Project.find_by_full_path(project_path)).not_to be_nil
+        end
+      end
+    end
+  end
+
+  context 'with subgroups', :nested_groups do
+    let(:project_path) { 'a-group/a-sub-group/a-project' }
+
+    let(:existing_group) do
+      group = create(:group, path: 'a-group')
+      create(:group, path: 'a-sub-group', parent: group)
+    end
+
+    it_behaves_like 'importing a repository'
+  end
+
+  context 'without subgroups' do
+    let(:project_path) { 'a-group/a-project' }
+    let(:existing_group) { create(:group, path: 'a-group') }
+
+    it_behaves_like 'importing a repository'
+  end
+
+  context 'without groups' do
+    let(:project_path) { 'a-project' }
+
+    it 'starts an import for a project that did not exist' do
+      expect(importer).to receive(:create_project)
+
+      importer.create_project_if_needed
+    end
+
+    it 'creates a project with the correct path in the database' do
+      importer.create_project_if_needed
+
+      expect(Project.find_by_full_path("#{admin.full_path}/#{project_path}")).not_to be_nil
+    end
+
+    it 'creates the Git repo in disk' do
+      FileUtils.mkdir_p(File.join(base_dir, "#{project_path}.git"))
+
+      importer.create_project_if_needed
+
+      project = Project.find_by_full_path("#{admin.full_path}/#{project_path}")
+
+      expect(File).to exist(File.join(project.repository_storage_path, project.disk_path + '.git'))
+    end
+  end
+
+  context 'with Wiki' do
+    let(:project_path) { 'a-group/a-project' }
+    let(:existing_group) { create(:group, path: 'a-group') }
+
+    it_behaves_like 'importing a repository'
+
+    it 'creates the Wiki git repo in disk' do
+      FileUtils.mkdir_p(File.join(base_dir, "#{project_path}.git"))
+      FileUtils.mkdir_p(File.join(base_dir, "#{project_path}.wiki.git"))
+
+      importer.create_project_if_needed
+
+      project = Project.find_by_full_path(project_path)
+
+      expect(File).to exist(File.join(project.repository_storage_path, project.disk_path + '.wiki.git'))
+    end
+  end
+
+  context 'when subgroups are not available' do
+    let(:project_path) { 'a-group/a-sub-group/a-project' }
+
+    before do
+      expect(Group).to receive(:supports_nested_groups?) { false }
+    end
+
+    describe '#create_project_if_needed' do
+      it 'raises an error' do
+        expect { importer.create_project_if_needed }.to raise_error('Nested groups are not supported on MySQL')
+      end
+    end
+  end
+end
diff --git a/spec/lib/gitlab/bare_repository_import/repository_spec.rb b/spec/lib/gitlab/bare_repository_import/repository_spec.rb
new file mode 100644
index 00000000000..2db737f5fb6
--- /dev/null
+++ b/spec/lib/gitlab/bare_repository_import/repository_spec.rb
@@ -0,0 +1,51 @@
+require 'spec_helper'
+
+describe ::Gitlab::BareRepositoryImport::Repository do
+  let(:project_repo_path) { described_class.new('/full/path/', '/full/path/to/repo.git') }
+
+  it 'stores the repo path' do
+    expect(project_repo_path.repo_path).to eq('/full/path/to/repo.git')
+  end
+
+  it 'stores the group path' do
+    expect(project_repo_path.group_path).to eq('to')
+  end
+
+  it 'stores the project name' do
+    expect(project_repo_path.project_name).to eq('repo')
+  end
+
+  it 'stores the wiki path' do
+    expect(project_repo_path.wiki_path).to eq('/full/path/to/repo.wiki.git')
+  end
+
+  describe '#wiki?' do
+    it 'returns true if it is a wiki' do
+      wiki_path = described_class.new('/full/path/', '/full/path/to/a/b/my.wiki.git')
+
+      expect(wiki_path.wiki?).to eq(true)
+    end
+
+    it 'returns false if it is not a wiki' do
+      expect(project_repo_path.wiki?).to eq(false)
+    end
+  end
+
+  describe '#hashed?' do
+    it 'returns true if it is a hashed folder' do
+      path = described_class.new('/full/path/', '/full/path/@hashed/my.repo.git')
+
+      expect(path.hashed?).to eq(true)
+    end
+
+    it 'returns false if it is not a hashed folder' do
+      expect(project_repo_path.hashed?).to eq(false)
+    end
+  end
+
+  describe '#project_full_path' do
+    it 'returns the project full path' do
+      expect(project_repo_path.repo_path).to eq('/full/path/to/repo.git')
+    end
+  end
+end
diff --git a/spec/lib/gitlab/bare_repository_importer_spec.rb b/spec/lib/gitlab/bare_repository_importer_spec.rb
deleted file mode 100644
index 36d1844b5b1..00000000000
--- a/spec/lib/gitlab/bare_repository_importer_spec.rb
+++ /dev/null
@@ -1,100 +0,0 @@
-require 'spec_helper'
-
-describe Gitlab::BareRepositoryImporter, repository: true do
-  subject(:importer) { described_class.new('default', project_path) }
-
-  let!(:admin) { create(:admin) }
-
-  before do
-    allow(described_class).to receive(:log)
-  end
-
-  shared_examples 'importing a repository' do
-    describe '.execute' do
-      it 'creates a project for a repository in storage' do
-        FileUtils.mkdir_p(File.join(TestEnv.repos_path, "#{project_path}.git"))
-        fake_importer = double
-
-        expect(described_class).to receive(:new).with('default', project_path)
-                                     .and_return(fake_importer)
-        expect(fake_importer).to receive(:create_project_if_needed)
-
-        described_class.execute
-      end
-
-      it 'skips wiki repos' do
-        FileUtils.mkdir_p(File.join(TestEnv.repos_path, 'the-group', 'the-project.wiki.git'))
-
-        expect(described_class).to receive(:log).with(' * Skipping wiki repo')
-        expect(described_class).not_to receive(:new)
-
-        described_class.execute
-      end
-    end
-
-    describe '#initialize' do
-      context 'without admin users' do
-        let(:admin) { nil }
-
-        it 'raises an error' do
-          expect { importer }.to raise_error(Gitlab::BareRepositoryImporter::NoAdminError)
-        end
-      end
-    end
-
-    describe '#create_project_if_needed' do
-      it 'starts an import for a project that did not exist' do
-        expect(importer).to receive(:create_project)
-
-        importer.create_project_if_needed
-      end
-
-      it 'skips importing when the project already exists' do
-        project = create(:project, path: 'a-project', namespace: existing_group)
-
-        expect(importer).not_to receive(:create_project)
-        expect(importer).to receive(:log).with(" * #{project.name} (#{project_path}) exists")
-
-        importer.create_project_if_needed
-      end
-
-      it 'creates a project with the correct path in the database' do
-        importer.create_project_if_needed
-
-        expect(Project.find_by_full_path(project_path)).not_to be_nil
-      end
-    end
-  end
-
-  context 'with subgroups', :nested_groups do
-    let(:project_path) { 'a-group/a-sub-group/a-project' }
-
-    let(:existing_group) do
-      group = create(:group, path: 'a-group')
-      create(:group, path: 'a-sub-group', parent: group)
-    end
-
-    it_behaves_like 'importing a repository'
-  end
-
-  context 'without subgroups' do
-    let(:project_path) { 'a-group/a-project' }
-    let(:existing_group) { create(:group, path: 'a-group') }
-
-    it_behaves_like 'importing a repository'
-  end
-
-  context 'when subgroups are not available' do
-    let(:project_path) { 'a-group/a-sub-group/a-project' }
-
-    before do
-      expect(Group).to receive(:supports_nested_groups?) { false }
-    end
-
-    describe '#create_project_if_needed' do
-      it 'raises an error' do
-        expect { importer.create_project_if_needed }.to raise_error('Nested groups are not supported on MySQL')
-      end
-    end
-  end
-end
diff --git a/spec/lib/gitlab/checks/change_access_spec.rb b/spec/lib/gitlab/checks/change_access_spec.rb
index 6c25b7349e1..c2bca816aae 100644
--- a/spec/lib/gitlab/checks/change_access_spec.rb
+++ b/spec/lib/gitlab/checks/change_access_spec.rb
@@ -11,13 +11,13 @@ describe Gitlab::Checks::ChangeAccess do
     let(:changes) { { oldrev: oldrev, newrev: newrev, ref: ref } }
     let(:protocol) { 'ssh' }
 
-    subject do
+    subject(:change_access) do
       described_class.new(
         changes,
         project: project,
         user_access: user_access,
         protocol: protocol
-      ).exec
+      )
     end
 
     before do
@@ -26,7 +26,7 @@ describe Gitlab::Checks::ChangeAccess do
 
     context 'without failed checks' do
       it "doesn't raise an error" do
-        expect { subject }.not_to raise_error
+        expect { subject.exec }.not_to raise_error
       end
     end
 
@@ -34,7 +34,7 @@ describe Gitlab::Checks::ChangeAccess do
       it 'raises an error' do
         expect(user_access).to receive(:can_do_action?).with(:push_code).and_return(false)
 
-        expect { subject }.to raise_error(Gitlab::GitAccess::UnauthorizedError, 'You are not allowed to push code to this project.')
+        expect { subject.exec }.to raise_error(Gitlab::GitAccess::UnauthorizedError, 'You are not allowed to push code to this project.')
       end
     end
 
@@ -45,7 +45,7 @@ describe Gitlab::Checks::ChangeAccess do
         allow(user_access).to receive(:can_do_action?).with(:push_code).and_return(true)
         expect(user_access).to receive(:can_do_action?).with(:admin_project).and_return(false)
 
-        expect { subject }.to raise_error(Gitlab::GitAccess::UnauthorizedError, 'You are not allowed to change existing tags on this project.')
+        expect { subject.exec }.to raise_error(Gitlab::GitAccess::UnauthorizedError, 'You are not allowed to change existing tags on this project.')
       end
 
       context 'with protected tag' do
@@ -61,7 +61,7 @@ describe Gitlab::Checks::ChangeAccess do
             let(:newrev) { '0000000000000000000000000000000000000000' }
 
             it 'is prevented' do
-              expect { subject }.to raise_error(Gitlab::GitAccess::UnauthorizedError, /cannot be deleted/)
+              expect { subject.exec }.to raise_error(Gitlab::GitAccess::UnauthorizedError, /cannot be deleted/)
             end
           end
 
@@ -70,7 +70,7 @@ describe Gitlab::Checks::ChangeAccess do
             let(:newrev) { '54fcc214b94e78d7a41a9a8fe6d87a5e59500e51' }
 
             it 'is prevented' do
-              expect { subject }.to raise_error(Gitlab::GitAccess::UnauthorizedError, /cannot be updated/)
+              expect { subject.exec }.to raise_error(Gitlab::GitAccess::UnauthorizedError, /cannot be updated/)
             end
           end
         end
@@ -81,14 +81,14 @@ describe Gitlab::Checks::ChangeAccess do
           let(:ref) { 'refs/tags/v9.1.0' }
 
           it 'prevents creation below access level' do
-            expect { subject }.to raise_error(Gitlab::GitAccess::UnauthorizedError, /allowed to create this tag as it is protected/)
+            expect { subject.exec }.to raise_error(Gitlab::GitAccess::UnauthorizedError, /allowed to create this tag as it is protected/)
           end
 
           context 'when user has access' do
             let!(:protected_tag) { create(:protected_tag, :developers_can_create, project: project, name: 'v*') }
 
             it 'allows tag creation' do
-              expect { subject }.not_to raise_error
+              expect { subject.exec }.not_to raise_error
             end
           end
         end
@@ -101,7 +101,7 @@ describe Gitlab::Checks::ChangeAccess do
         let(:ref) { 'refs/heads/master' }
 
         it 'raises an error' do
-          expect { subject }.to raise_error(Gitlab::GitAccess::UnauthorizedError, 'The default branch of a project cannot be deleted.')
+          expect { subject.exec }.to raise_error(Gitlab::GitAccess::UnauthorizedError, 'The default branch of a project cannot be deleted.')
         end
       end
 
@@ -114,7 +114,7 @@ describe Gitlab::Checks::ChangeAccess do
         it 'raises an error if the user is not allowed to do forced pushes to protected branches' do
           expect(Gitlab::Checks::ForcePush).to receive(:force_push?).and_return(true)
 
-          expect { subject }.to raise_error(Gitlab::GitAccess::UnauthorizedError, 'You are not allowed to force push code to a protected branch on this project.')
+          expect { subject.exec }.to raise_error(Gitlab::GitAccess::UnauthorizedError, 'You are not allowed to force push code to a protected branch on this project.')
         end
 
         it 'raises an error if the user is not allowed to merge to protected branches' do
@@ -122,13 +122,13 @@ describe Gitlab::Checks::ChangeAccess do
           expect(user_access).to receive(:can_merge_to_branch?).and_return(false)
           expect(user_access).to receive(:can_push_to_branch?).and_return(false)
 
-          expect { subject }.to raise_error(Gitlab::GitAccess::UnauthorizedError, 'You are not allowed to merge code into protected branches on this project.')
+          expect { subject.exec }.to raise_error(Gitlab::GitAccess::UnauthorizedError, 'You are not allowed to merge code into protected branches on this project.')
         end
 
         it 'raises an error if the user is not allowed to push to protected branches' do
           expect(user_access).to receive(:can_push_to_branch?).and_return(false)
 
-          expect { subject }.to raise_error(Gitlab::GitAccess::UnauthorizedError, 'You are not allowed to push code to protected branches on this project.')
+          expect { subject.exec }.to raise_error(Gitlab::GitAccess::UnauthorizedError, 'You are not allowed to push code to protected branches on this project.')
         end
 
         context 'branch deletion' do
@@ -137,7 +137,7 @@ describe Gitlab::Checks::ChangeAccess do
 
           context 'if the user is not allowed to delete protected branches' do
             it 'raises an error' do
-              expect { subject }.to raise_error(Gitlab::GitAccess::UnauthorizedError, 'You are not allowed to delete protected branches from this project. Only a project master or owner can delete a protected branch.')
+              expect { subject.exec }.to raise_error(Gitlab::GitAccess::UnauthorizedError, 'You are not allowed to delete protected branches from this project. Only a project master or owner can delete a protected branch.')
             end
           end
 
@@ -150,18 +150,32 @@ describe Gitlab::Checks::ChangeAccess do
               let(:protocol) { 'web' }
 
               it 'allows branch deletion' do
-                expect { subject }.not_to raise_error
+                expect { subject.exec }.not_to raise_error
               end
             end
 
             context 'over SSH or HTTP' do
               it 'raises an error' do
-                expect { subject }.to raise_error(Gitlab::GitAccess::UnauthorizedError, 'You can only delete protected branches using the web interface.')
+                expect { subject.exec }.to raise_error(Gitlab::GitAccess::UnauthorizedError, 'You can only delete protected branches using the web interface.')
               end
             end
           end
         end
       end
     end
+
+    context 'LFS integrity check' do
+      it 'fails if any LFS blobs are missing' do
+        allow_any_instance_of(Gitlab::Checks::LfsIntegrity).to receive(:objects_missing?).and_return(true)
+
+        expect { subject.exec }.to raise_error(Gitlab::GitAccess::UnauthorizedError, /LFS objects are missing/)
+      end
+
+      it 'succeeds if LFS objects have already been uploaded' do
+        allow_any_instance_of(Gitlab::Checks::LfsIntegrity).to receive(:objects_missing?).and_return(false)
+
+        expect { subject.exec }.not_to raise_error
+      end
+    end
   end
 end
diff --git a/spec/lib/gitlab/checks/lfs_integrity_spec.rb b/spec/lib/gitlab/checks/lfs_integrity_spec.rb
new file mode 100644
index 00000000000..17756621221
--- /dev/null
+++ b/spec/lib/gitlab/checks/lfs_integrity_spec.rb
@@ -0,0 +1,74 @@
+require 'spec_helper'
+
+describe Gitlab::Checks::LfsIntegrity do
+  include ProjectForksHelper
+  let(:project) { create(:project, :repository) }
+  let(:newrev) { '54fcc214b94e78d7a41a9a8fe6d87a5e59500e51' }
+
+  subject { described_class.new(project, newrev) }
+
+  describe '#objects_missing?' do
+    let(:blob_object) { project.repository.blob_at_branch('lfs', 'files/lfs/lfs_object.iso') }
+
+    before do
+      allow_any_instance_of(Gitlab::Git::RevList).to receive(:new_objects) do |&lazy_block|
+        lazy_block.call([blob_object.id])
+      end
+    end
+
+    context 'with LFS not enabled' do
+      it 'skips integrity check' do
+        expect_any_instance_of(Gitlab::Git::RevList).not_to receive(:new_objects)
+
+        subject.objects_missing?
+      end
+    end
+
+    context 'with LFS enabled' do
+      before do
+        allow(project).to receive(:lfs_enabled?).and_return(true)
+      end
+
+      context 'deletion' do
+        let(:newrev) { nil }
+
+        it 'skips integrity check' do
+          expect_any_instance_of(Gitlab::Git::RevList).not_to receive(:new_objects)
+
+          expect(subject.objects_missing?).to be_falsey
+        end
+      end
+
+      it 'is true if any LFS blobs are missing' do
+        expect(subject.objects_missing?).to be_truthy
+      end
+
+      it 'is false if LFS objects have already been uploaded' do
+        lfs_object = create(:lfs_object, oid: blob_object.lfs_oid)
+        create(:lfs_objects_project, project: project, lfs_object: lfs_object)
+
+        expect(subject.objects_missing?).to be_falsey
+      end
+    end
+
+    context 'for forked project' do
+      let(:parent_project) { create(:project, :repository) }
+      let(:project) { fork_project(parent_project, nil, repository: true) }
+
+      before do
+        allow(project).to receive(:lfs_enabled?).and_return(true)
+      end
+
+      it 'is true parent project is missing LFS objects' do
+        expect(subject.objects_missing?).to be_truthy
+      end
+
+      it 'is false parent project already conatins LFS objects for the fork' do
+        lfs_object = create(:lfs_object, oid: blob_object.lfs_oid)
+        create(:lfs_objects_project, project: parent_project, lfs_object: lfs_object)
+
+        expect(subject.objects_missing?).to be_falsey
+      end
+    end
+  end
+end
diff --git a/spec/lib/gitlab/ci/status/build/factory_spec.rb b/spec/lib/gitlab/ci/status/build/factory_spec.rb
index 2b32e47e9ba..d196bc6a4c2 100644
--- a/spec/lib/gitlab/ci/status/build/factory_spec.rb
+++ b/spec/lib/gitlab/ci/status/build/factory_spec.rb
@@ -84,7 +84,7 @@ describe Gitlab::Ci::Status::Build::Factory do
 
       it 'fabricates status with correct details' do
         expect(status.text).to eq 'failed'
-        expect(status.icon).to eq 'warning'
+        expect(status.icon).to eq 'status_warning'
         expect(status.favicon).to eq 'favicon_status_failed'
         expect(status.label).to eq 'failed (allowed to fail)'
         expect(status).to have_details
diff --git a/spec/lib/gitlab/ci/status/build/failed_allowed_spec.rb b/spec/lib/gitlab/ci/status/build/failed_allowed_spec.rb
index 79a65fc67e8..99a5a7e4aca 100644
--- a/spec/lib/gitlab/ci/status/build/failed_allowed_spec.rb
+++ b/spec/lib/gitlab/ci/status/build/failed_allowed_spec.rb
@@ -18,7 +18,7 @@ describe Gitlab::Ci::Status::Build::FailedAllowed do
 
   describe '#icon' do
     it 'returns a warning icon' do
-      expect(subject.icon).to eq 'warning'
+      expect(subject.icon).to eq 'status_warning'
     end
   end
 
diff --git a/spec/lib/gitlab/database/grant_spec.rb b/spec/lib/gitlab/database/grant_spec.rb
index 651da3e8476..5ebf3f399b6 100644
--- a/spec/lib/gitlab/database/grant_spec.rb
+++ b/spec/lib/gitlab/database/grant_spec.rb
@@ -1,16 +1,6 @@
 require 'spec_helper'
 
 describe Gitlab::Database::Grant do
-  describe '.scope_to_current_user' do
-    it 'scopes the relation to the current user' do
-      user = Gitlab::Database.username
-      column = Gitlab::Database.postgresql? ? :grantee : :User
-      names = described_class.scope_to_current_user.pluck(column).uniq
-
-      expect(names).to eq([user])
-    end
-  end
-
   describe '.create_and_execute_trigger' do
     it 'returns true when the user can create and execute a trigger' do
       # We assume the DB/user is set up correctly so that triggers can be
@@ -18,13 +8,11 @@ describe Gitlab::Database::Grant do
       expect(described_class.create_and_execute_trigger?('users')).to eq(true)
     end
 
-    it 'returns false when the user can not create and/or execute a trigger' do
-      allow(described_class).to receive(:scope_to_current_user)
-        .and_return(described_class.none)
-
-      result = described_class.create_and_execute_trigger?('kittens')
-
-      expect(result).to eq(false)
+    it 'returns false when the user can not create and/or execute a trigger', :postgresql do
+      # In case of MySQL the user may have SUPER permissions, making it
+      # impossible to have `false` returned when running tests; hence we only
+      # run these tests on PostgreSQL.
+      expect(described_class.create_and_execute_trigger?('foo')).to eq(false)
     end
   end
 end
diff --git a/spec/lib/gitlab/database_spec.rb b/spec/lib/gitlab/database_spec.rb
index 7aeb85b8f5a..fcddfad3f9f 100644
--- a/spec/lib/gitlab/database_spec.rb
+++ b/spec/lib/gitlab/database_spec.rb
@@ -202,6 +202,26 @@ describe Gitlab::Database do
     it 'handles non-UTF-8 data' do
       expect { described_class.bulk_insert('test', [{ a: "\255" }]) }.not_to raise_error
     end
+
+    context 'when using PostgreSQL' do
+      before do
+        allow(described_class).to receive(:mysql?).and_return(false)
+      end
+
+      it 'allows the returning of the IDs of the inserted rows' do
+        result = double(:result, values: [['10']])
+
+        expect(connection)
+          .to receive(:execute)
+          .with(/RETURNING id/)
+          .and_return(result)
+
+        ids = described_class
+          .bulk_insert('test', [{ number: 10 }], return_ids: true)
+
+        expect(ids).to eq([10])
+      end
+    end
   end
 
   describe '.create_connection_pool' do
diff --git a/spec/lib/gitlab/git/remote_repository_spec.rb b/spec/lib/gitlab/git/remote_repository_spec.rb
new file mode 100644
index 00000000000..0506210887c
--- /dev/null
+++ b/spec/lib/gitlab/git/remote_repository_spec.rb
@@ -0,0 +1,99 @@
+require 'spec_helper'
+
+describe Gitlab::Git::RemoteRepository, seed_helper: true do
+  let(:repository) { Gitlab::Git::Repository.new('default', TEST_REPO_PATH, '') }
+  subject { described_class.new(repository) }
+
+  describe '#empty_repo?' do
+    using RSpec::Parameterized::TableSyntax
+
+    where(:repository, :result) do
+      Gitlab::Git::Repository.new('default', TEST_REPO_PATH, '')       | false
+      Gitlab::Git::Repository.new('default', 'does-not-exist.git', '') | true
+    end
+
+    with_them do
+      it { expect(subject.empty_repo?).to eq(result) }
+    end
+  end
+
+  describe '#commit_id' do
+    it 'returns an OID if the revision exists' do
+      expect(subject.commit_id('v1.0.0')).to eq('6f6d7e7ed97bb5f0054f2b1df789b39ca89b6ff9')
+    end
+
+    it 'is nil when the revision does not exist' do
+      expect(subject.commit_id('does-not-exist')).to be_nil
+    end
+  end
+
+  describe '#branch_exists?' do
+    using RSpec::Parameterized::TableSyntax
+
+    where(:branch, :result) do
+      'master'         | true
+      'does-not-exist' | false
+    end
+
+    with_them do
+      it { expect(subject.branch_exists?(branch)).to eq(result) }
+    end
+  end
+
+  describe '#same_repository?' do
+    using RSpec::Parameterized::TableSyntax
+
+    where(:other_repository, :result) do
+      repository                                                                     | true
+      Gitlab::Git::Repository.new(repository.storage, repository.relative_path, '')  | true
+      Gitlab::Git::Repository.new('broken', TEST_REPO_PATH, '')                      | false
+      Gitlab::Git::Repository.new(repository.storage, 'wrong/relative-path.git', '') | false
+      Gitlab::Git::Repository.new('broken', 'wrong/relative-path.git', '')           | false
+    end
+
+    with_them do
+      it { expect(subject.same_repository?(other_repository)).to eq(result) }
+    end
+  end
+
+  describe '#fetch_env' do
+    let(:remote_repository) { described_class.new(repository) }
+
+    let(:gitaly_client) { double(:gitaly_client) }
+    let(:address) { 'fake-address' }
+    let(:token) { 'fake-token' }
+
+    subject { remote_repository.fetch_env }
+
+    before do
+      allow(remote_repository).to receive(:gitaly_client).and_return(gitaly_client)
+
+      expect(gitaly_client).to receive(:address).with(repository.storage).and_return(address)
+      expect(gitaly_client).to receive(:token).with(repository.storage).and_return(token)
+    end
+
+    it { expect(subject).to be_a(Hash) }
+    it { expect(subject['GITALY_ADDRESS']).to eq(address) }
+    it { expect(subject['GITALY_TOKEN']).to eq(token) }
+    it { expect(subject['GITALY_WD']).to eq(Dir.pwd) }
+
+    it 'creates a plausible GIT_SSH_COMMAND' do
+      git_ssh_command = subject['GIT_SSH_COMMAND']
+
+      expect(git_ssh_command).to start_with('/')
+      expect(git_ssh_command).to end_with('/gitaly-ssh upload-pack')
+    end
+
+    it 'creates a plausible GITALY_PAYLOAD' do
+      req = Gitaly::SSHUploadPackRequest.decode_json(subject['GITALY_PAYLOAD'])
+
+      expect(remote_repository.gitaly_repository).to eq(req.repository)
+    end
+
+    context 'when the token is blank' do
+      let(:token) { '' }
+
+      it { expect(subject.keys).not_to include('GITALY_TOKEN') }
+    end
+  end
+end
diff --git a/spec/lib/gitlab/git/repository_spec.rb b/spec/lib/gitlab/git/repository_spec.rb
index 1d4d0c300eb..5d990b42c24 100644
--- a/spec/lib/gitlab/git/repository_spec.rb
+++ b/spec/lib/gitlab/git/repository_spec.rb
@@ -449,7 +449,6 @@ describe Gitlab::Git::Repository, seed_helper: true do
       let(:repository) { Gitlab::Git::Repository.new('default', TEST_MUTABLE_REPO_PATH, '') }
 
       after do
-        FileUtils.rm_rf(TEST_MUTABLE_REPO_PATH)
         ensure_seeds
       end
 
@@ -484,7 +483,6 @@ describe Gitlab::Git::Repository, seed_helper: true do
       let(:repository) { Gitlab::Git::Repository.new('default', TEST_MUTABLE_REPO_PATH, '') }
 
       after do
-        FileUtils.rm_rf(TEST_MUTABLE_REPO_PATH)
         ensure_seeds
       end
 
@@ -544,7 +542,6 @@ describe Gitlab::Git::Repository, seed_helper: true do
     end
 
     after(:all) do
-      FileUtils.rm_rf(TEST_MUTABLE_REPO_PATH)
       ensure_seeds
     end
   end
@@ -570,7 +567,6 @@ describe Gitlab::Git::Repository, seed_helper: true do
     end
 
     after(:all) do
-      FileUtils.rm_rf(TEST_MUTABLE_REPO_PATH)
       ensure_seeds
     end
   end
@@ -588,7 +584,6 @@ describe Gitlab::Git::Repository, seed_helper: true do
     end
 
     after(:all) do
-      FileUtils.rm_rf(TEST_MUTABLE_REPO_PATH)
       ensure_seeds
     end
   end
@@ -648,6 +643,21 @@ describe Gitlab::Git::Repository, seed_helper: true do
     end
   end
 
+  describe '#remote_exists?' do
+    before(:all) do
+      @repo = Gitlab::Git::Repository.new('default', TEST_MUTABLE_REPO_PATH, '')
+      @repo.add_remote("new_remote", SeedHelper::GITLAB_GIT_TEST_REPO_URL)
+    end
+
+    it 'returns true for an existing remote' do
+      expect(@repo.remote_exists?('new_remote')).to eq(true)
+    end
+
+    it 'returns false for a non-existing remote' do
+      expect(@repo.remote_exists?('foo')).to eq(false)
+    end
+  end
+
   describe "#log" do
     let(:commit_with_old_name) do
       Gitlab::Git::Commit.decorate(repository, @commit_with_old_name_id)
@@ -1107,7 +1117,6 @@ describe Gitlab::Git::Repository, seed_helper: true do
       end
 
       after do
-        FileUtils.rm_rf(TEST_MUTABLE_REPO_PATH)
         ensure_seeds
       end
 
@@ -1154,7 +1163,6 @@ describe Gitlab::Git::Repository, seed_helper: true do
       end
 
       after do
-        FileUtils.rm_rf(TEST_MUTABLE_REPO_PATH)
         ensure_seeds
       end
 
@@ -1404,7 +1412,6 @@ describe Gitlab::Git::Repository, seed_helper: true do
     end
 
     after(:all) do
-      FileUtils.rm_rf(TEST_MUTABLE_REPO_PATH)
       ensure_seeds
     end
 
@@ -1521,36 +1528,61 @@ describe Gitlab::Git::Repository, seed_helper: true do
     end
   end
 
-  describe '#fetch_source_branch' do
-    let(:local_ref) { 'refs/merge-requests/1/head' }
+  describe '#fetch_source_branch!' do
+    shared_examples '#fetch_source_branch!' do
+      let(:local_ref) { 'refs/merge-requests/1/head' }
+      let(:repository) { Gitlab::Git::Repository.new('default', TEST_REPO_PATH, '') }
+      let(:source_repository) { Gitlab::Git::Repository.new('default', TEST_MUTABLE_REPO_PATH, '') }
 
-    context 'when the branch exists' do
-      let(:source_branch) { 'master' }
+      after do
+        ensure_seeds
+      end
 
-      it 'writes the ref' do
-        expect(repository).to receive(:write_ref).with(local_ref, /\h{40}/)
+      context 'when the branch exists' do
+        context 'when the commit does not exist locally' do
+          let(:source_branch) { 'new-branch-for-fetch-source-branch' }
+          let(:source_rugged) { source_repository.rugged }
+          let(:new_oid) { new_commit_edit_old_file(source_rugged).oid }
 
-        repository.fetch_source_branch(repository, source_branch, local_ref)
-      end
+          before do
+            source_rugged.branches.create(source_branch, new_oid)
+          end
 
-      it 'returns true' do
-        expect(repository.fetch_source_branch(repository, source_branch, local_ref)).to eq(true)
-      end
-    end
+          it 'writes the ref' do
+            expect(repository.fetch_source_branch!(source_repository, source_branch, local_ref)).to eq(true)
+            expect(repository.commit(local_ref).sha).to eq(new_oid)
+          end
+        end
 
-    context 'when the branch does not exist' do
-      let(:source_branch) { 'definitely-not-master' }
+        context 'when the commit exists locally' do
+          let(:source_branch) { 'master' }
+          let(:expected_oid) { SeedRepo::LastCommit::ID }
 
-      it 'does not write the ref' do
-        expect(repository).not_to receive(:write_ref)
+          it 'writes the ref' do
+            # Sanity check: the commit should already exist
+            expect(repository.commit(expected_oid)).not_to be_nil
 
-        repository.fetch_source_branch(repository, source_branch, local_ref)
+            expect(repository.fetch_source_branch!(source_repository, source_branch, local_ref)).to eq(true)
+            expect(repository.commit(local_ref).sha).to eq(expected_oid)
+          end
+        end
       end
 
-      it 'returns false' do
-        expect(repository.fetch_source_branch(repository, source_branch, local_ref)).to eq(false)
+      context 'when the branch does not exist' do
+        let(:source_branch) { 'definitely-not-master' }
+
+        it 'does not write the ref' do
+          expect(repository.fetch_source_branch!(source_repository, source_branch, local_ref)).to eq(false)
+          expect(repository.commit(local_ref)).to be_nil
+        end
       end
     end
+
+    it_behaves_like '#fetch_source_branch!'
+
+    context 'without gitaly', :skip_gitaly_mock do
+      it_behaves_like '#fetch_source_branch!'
+    end
   end
 
   describe '#rm_branch' do
@@ -1626,7 +1658,6 @@ describe Gitlab::Git::Repository, seed_helper: true do
     end
 
     after do
-      FileUtils.rm_rf(TEST_MUTABLE_REPO_PATH)
       ensure_seeds
     end
 
diff --git a/spec/lib/gitlab/gitaly_client/wiki_service_spec.rb b/spec/lib/gitlab/gitaly_client/wiki_service_spec.rb
new file mode 100644
index 00000000000..6ad9f5ef766
--- /dev/null
+++ b/spec/lib/gitlab/gitaly_client/wiki_service_spec.rb
@@ -0,0 +1,88 @@
+require 'spec_helper'
+
+describe Gitlab::GitalyClient::WikiService do
+  let(:project) { create(:project) }
+  let(:storage_name) { project.repository_storage }
+  let(:relative_path) { project.disk_path + '.git' }
+  let(:client) { described_class.new(project.repository) }
+  let(:commit) { create(:gitaly_commit) }
+  let(:page_version) { Gitaly::WikiPageVersion.new(format: 'markdown', commit: commit) }
+  let(:page_info) { { title: 'My Page', raw_data: 'a', version: page_version } }
+
+  describe '#find_page' do
+    let(:response) do
+      [
+        Gitaly::WikiFindPageResponse.new(page: Gitaly::WikiPage.new(page_info)),
+        Gitaly::WikiFindPageResponse.new(page: Gitaly::WikiPage.new(raw_data: 'b'))
+      ]
+    end
+    let(:wiki_page) { subject.first }
+    let(:wiki_page_version) { subject.last }
+
+    subject { client.find_page(title: 'My Page', version: 'master', dir: '') }
+
+    it 'sends a wiki_find_page message' do
+      expect_any_instance_of(Gitaly::WikiService::Stub)
+        .to receive(:wiki_find_page)
+        .with(gitaly_request_with_path(storage_name, relative_path), kind_of(Hash))
+        .and_return([].each)
+
+      subject
+    end
+
+    it 'concatenates the raw data and returns a pair of WikiPage and WikiPageVersion' do
+      expect_any_instance_of(Gitaly::WikiService::Stub)
+        .to receive(:wiki_find_page)
+        .with(gitaly_request_with_path(storage_name, relative_path), kind_of(Hash))
+        .and_return(response.each)
+
+      expect(wiki_page.title).to eq('My Page')
+      expect(wiki_page.raw_data).to eq('ab')
+      expect(wiki_page_version.format).to eq('markdown')
+    end
+  end
+
+  describe '#get_all_pages' do
+    let(:page_2_info) { { title: 'My Page 2', raw_data: 'c', version: page_version } }
+    let(:response) do
+      [
+        Gitaly::WikiGetAllPagesResponse.new(page: Gitaly::WikiPage.new(page_info)),
+        Gitaly::WikiGetAllPagesResponse.new(page: Gitaly::WikiPage.new(raw_data: 'b')),
+        Gitaly::WikiGetAllPagesResponse.new(end_of_page: true),
+        Gitaly::WikiGetAllPagesResponse.new(page: Gitaly::WikiPage.new(page_2_info)),
+        Gitaly::WikiGetAllPagesResponse.new(page: Gitaly::WikiPage.new(raw_data: 'd')),
+        Gitaly::WikiGetAllPagesResponse.new(end_of_page: true)
+      ]
+    end
+    let(:wiki_page_1) { subject[0].first }
+    let(:wiki_page_1_version) { subject[0].last }
+    let(:wiki_page_2) { subject[1].first }
+    let(:wiki_page_2_version) { subject[1].last }
+
+    subject { client.get_all_pages }
+
+    it 'sends a wiki_get_all_pages message' do
+      expect_any_instance_of(Gitaly::WikiService::Stub)
+        .to receive(:wiki_get_all_pages)
+        .with(gitaly_request_with_path(storage_name, relative_path), kind_of(Hash))
+        .and_return([].each)
+
+      subject
+    end
+
+    it 'concatenates the raw data and returns a pair of WikiPage and WikiPageVersion for each page' do
+      expect_any_instance_of(Gitaly::WikiService::Stub)
+        .to receive(:wiki_get_all_pages)
+        .with(gitaly_request_with_path(storage_name, relative_path), kind_of(Hash))
+        .and_return(response.each)
+
+      expect(subject.size).to be(2)
+      expect(wiki_page_1.title).to eq('My Page')
+      expect(wiki_page_1.raw_data).to eq('ab')
+      expect(wiki_page_1_version.format).to eq('markdown')
+      expect(wiki_page_2.title).to eq('My Page 2')
+      expect(wiki_page_2.raw_data).to eq('cd')
+      expect(wiki_page_2_version.format).to eq('markdown')
+    end
+  end
+end
diff --git a/spec/lib/gitlab/github_import/bulk_importing_spec.rb b/spec/lib/gitlab/github_import/bulk_importing_spec.rb
new file mode 100644
index 00000000000..91229d9c7d4
--- /dev/null
+++ b/spec/lib/gitlab/github_import/bulk_importing_spec.rb
@@ -0,0 +1,62 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::BulkImporting do
+  let(:importer) do
+    Class.new { include(Gitlab::GithubImport::BulkImporting) }.new
+  end
+
+  describe '#build_database_rows' do
+    it 'returns an Array containing the rows to insert' do
+      object = double(:object, title: 'Foo')
+
+      expect(importer)
+        .to receive(:build)
+        .with(object)
+        .and_return({ title: 'Foo' })
+
+      expect(importer)
+        .to receive(:already_imported?)
+        .with(object)
+        .and_return(false)
+
+      enum = [[object, 1]].to_enum
+
+      expect(importer.build_database_rows(enum)).to eq([{ title: 'Foo' }])
+    end
+
+    it 'does not import objects that have already been imported' do
+      object = double(:object, title: 'Foo')
+
+      expect(importer)
+        .not_to receive(:build)
+
+      expect(importer)
+        .to receive(:already_imported?)
+        .with(object)
+        .and_return(true)
+
+      enum = [[object, 1]].to_enum
+
+      expect(importer.build_database_rows(enum)).to be_empty
+    end
+  end
+
+  describe '#bulk_insert' do
+    it 'bulk inserts rows into the database' do
+      rows = [{ title: 'Foo' }] * 10
+      model = double(:model, table_name: 'kittens')
+
+      expect(Gitlab::Database)
+        .to receive(:bulk_insert)
+        .ordered
+        .with('kittens', rows.first(5))
+
+      expect(Gitlab::Database)
+        .to receive(:bulk_insert)
+        .ordered
+        .with('kittens', rows.last(5))
+
+      importer.bulk_insert(model, rows, batch_size: 5)
+    end
+  end
+end
diff --git a/spec/lib/gitlab/github_import/caching_spec.rb b/spec/lib/gitlab/github_import/caching_spec.rb
new file mode 100644
index 00000000000..70ecdc16da1
--- /dev/null
+++ b/spec/lib/gitlab/github_import/caching_spec.rb
@@ -0,0 +1,117 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::Caching, :clean_gitlab_redis_cache do
+  describe '.read' do
+    it 'reads a value from the cache' do
+      described_class.write('foo', 'bar')
+
+      expect(described_class.read('foo')).to eq('bar')
+    end
+
+    it 'returns nil if the cache key does not exist' do
+      expect(described_class.read('foo')).to be_nil
+    end
+
+    it 'refreshes the cache key if a value is present' do
+      described_class.write('foo', 'bar')
+
+      redis = double(:redis)
+
+      expect(redis).to receive(:get).with(/foo/).and_return('bar')
+      expect(redis).to receive(:expire).with(/foo/, described_class::TIMEOUT)
+      expect(Gitlab::Redis::Cache).to receive(:with).twice.and_yield(redis)
+
+      described_class.read('foo')
+    end
+
+    it 'does not refresh the cache key if a value is empty' do
+      described_class.write('foo', nil)
+
+      redis = double(:redis)
+
+      expect(redis).to receive(:get).with(/foo/).and_return('')
+      expect(redis).not_to receive(:expire)
+      expect(Gitlab::Redis::Cache).to receive(:with).and_yield(redis)
+
+      described_class.read('foo')
+    end
+  end
+
+  describe '.read_integer' do
+    it 'returns an Integer' do
+      described_class.write('foo', '10')
+
+      expect(described_class.read_integer('foo')).to eq(10)
+    end
+
+    it 'returns nil if no value was found' do
+      expect(described_class.read_integer('foo')).to be_nil
+    end
+  end
+
+  describe '.write' do
+    it 'writes a value to the cache and returns the written value' do
+      expect(described_class.write('foo', 10)).to eq(10)
+      expect(described_class.read('foo')).to eq('10')
+    end
+  end
+
+  describe '.set_add' do
+    it 'adds a value to a set' do
+      described_class.set_add('foo', 10)
+      described_class.set_add('foo', 10)
+
+      key = described_class.cache_key_for('foo')
+      values = Gitlab::Redis::Cache.with { |r| r.smembers(key) }
+
+      expect(values).to eq(['10'])
+    end
+  end
+
+  describe '.set_includes?' do
+    it 'returns false when the key does not exist' do
+      expect(described_class.set_includes?('foo', 10)).to eq(false)
+    end
+
+    it 'returns false when the value is not present in the set' do
+      described_class.set_add('foo', 10)
+
+      expect(described_class.set_includes?('foo', 20)).to eq(false)
+    end
+
+    it 'returns true when the set includes the given value' do
+      described_class.set_add('foo', 10)
+
+      expect(described_class.set_includes?('foo', 10)).to eq(true)
+    end
+  end
+
+  describe '.write_multiple' do
+    it 'sets multiple keys' do
+      mapping = { 'foo' => 10, 'bar' => 20 }
+
+      described_class.write_multiple(mapping)
+
+      mapping.each do |key, value|
+        full_key = described_class.cache_key_for(key)
+        found = Gitlab::Redis::Cache.with { |r| r.get(full_key) }
+
+        expect(found).to eq(value.to_s)
+      end
+    end
+  end
+
+  describe '.expire' do
+    it 'sets the expiration time of a key' do
+      timeout = 1.hour.to_i
+
+      described_class.write('foo', 'bar', timeout: 2.hours.to_i)
+      described_class.expire('foo', timeout)
+
+      key = described_class.cache_key_for('foo')
+      found_ttl = Gitlab::Redis::Cache.with { |r| r.ttl(key) }
+
+      expect(found_ttl).to be <= timeout
+    end
+  end
+end
diff --git a/spec/lib/gitlab/github_import/client_spec.rb b/spec/lib/gitlab/github_import/client_spec.rb
index 66273255b6f..5b2642d9473 100644
--- a/spec/lib/gitlab/github_import/client_spec.rb
+++ b/spec/lib/gitlab/github_import/client_spec.rb
@@ -1,97 +1,392 @@
 require 'spec_helper'
 
 describe Gitlab::GithubImport::Client do
-  let(:token) { '123456' }
-  let(:github_provider) { Settingslogic.new('app_id' => 'asd123', 'app_secret' => 'asd123', 'name' => 'github', 'args' => { 'client_options' => {} }) }
+  describe '#parallel?' do
+    it 'returns true when the client is running in parallel mode' do
+      client = described_class.new('foo', parallel: true)
 
-  subject(:client) { described_class.new(token) }
+      expect(client).to be_parallel
+    end
+
+    it 'returns false when the client is running in sequential mode' do
+      client = described_class.new('foo', parallel: false)
 
-  before do
-    allow(Gitlab.config.omniauth).to receive(:providers).and_return([github_provider])
+      expect(client).not_to be_parallel
+    end
   end
 
-  it 'convert OAuth2 client options to symbols' do
-    client.client.options.keys.each do |key|
-      expect(key).to be_kind_of(Symbol)
+  describe '#user' do
+    it 'returns the details for the given username' do
+      client = described_class.new('foo')
+
+      expect(client.octokit).to receive(:user).with('foo')
+      expect(client).to receive(:with_rate_limit).and_yield
+
+      client.user('foo')
     end
   end
 
-  it 'does not crash (e.g. Settingslogic::MissingSetting) when verify_ssl config is not present' do
-    expect { client.api }.not_to raise_error
+  describe '#repository' do
+    it 'returns the details of a repository' do
+      client = described_class.new('foo')
+
+      expect(client.octokit).to receive(:repo).with('foo/bar')
+      expect(client).to receive(:with_rate_limit).and_yield
+
+      client.repository('foo/bar')
+    end
   end
 
-  context 'when config is missing' do
-    before do
-      allow(Gitlab.config.omniauth).to receive(:providers).and_return([])
+  describe '#labels' do
+    it 'returns the labels' do
+      client = described_class.new('foo')
+
+      expect(client)
+        .to receive(:each_object)
+        .with(:labels, 'foo/bar')
+
+      client.labels('foo/bar')
     end
+  end
 
-    it 'is still possible to get an Octokit client' do
-      expect { client.api }.not_to raise_error
+  describe '#milestones' do
+    it 'returns the milestones' do
+      client = described_class.new('foo')
+
+      expect(client)
+        .to receive(:each_object)
+        .with(:milestones, 'foo/bar')
+
+      client.milestones('foo/bar')
     end
+  end
 
-    it 'is not be possible to get an OAuth2 client' do
-      expect { client.client }.to raise_error(Projects::ImportService::Error)
+  describe '#releases' do
+    it 'returns the releases' do
+      client = described_class.new('foo')
+
+      expect(client)
+        .to receive(:each_object)
+        .with(:releases, 'foo/bar')
+
+      client.releases('foo/bar')
     end
   end
 
-  context 'allow SSL verification to be configurable on API' do
+  describe '#each_page' do
+    let(:client) { described_class.new('foo') }
+    let(:object1) { double(:object1) }
+    let(:object2) { double(:object2) }
+
     before do
-      github_provider['verify_ssl'] = false
+      allow(client)
+        .to receive(:with_rate_limit)
+        .and_yield
+
+      allow(client.octokit)
+        .to receive(:public_send)
+        .and_return([object1])
+
+      response = double(:response, data: [object2], rels: { next: nil })
+      next_page = double(:next_page, get: response)
+
+      allow(client.octokit)
+        .to receive(:last_response)
+        .and_return(double(:last_response, rels: { next: next_page }))
+    end
+
+    context 'without a block' do
+      it 'returns an Enumerator' do
+        expect(client.each_page(:foo)).to be_an_instance_of(Enumerator)
+      end
+
+      it 'the returned Enumerator returns Page objects' do
+        enum = client.each_page(:foo)
+
+        page1 = enum.next
+        page2 = enum.next
+
+        expect(page1).to be_an_instance_of(described_class::Page)
+        expect(page2).to be_an_instance_of(described_class::Page)
+
+        expect(page1.objects).to eq([object1])
+        expect(page1.number).to eq(1)
+
+        expect(page2.objects).to eq([object2])
+        expect(page2.number).to eq(2)
+      end
+    end
+
+    context 'with a block' do
+      it 'yields every retrieved page to the supplied block' do
+        pages = []
+
+        client.each_page(:foo) { |page| pages << page }
+
+        expect(pages[0]).to be_an_instance_of(described_class::Page)
+        expect(pages[1]).to be_an_instance_of(described_class::Page)
+
+        expect(pages[0].objects).to eq([object1])
+        expect(pages[0].number).to eq(1)
+
+        expect(pages[1].objects).to eq([object2])
+        expect(pages[1].number).to eq(2)
+      end
+
+      it 'starts at the given page' do
+        pages = []
+
+        client.each_page(:foo, page: 2) { |page| pages << page }
+
+        expect(pages[0].number).to eq(2)
+        expect(pages[1].number).to eq(3)
+      end
+    end
+  end
+
+  describe '#with_rate_limit' do
+    let(:client) { described_class.new('foo') }
+
+    it 'yields the supplied block when enough requests remain' do
+      expect(client).to receive(:requests_remaining?).and_return(true)
+
+      expect { |b| client.with_rate_limit(&b) }.to yield_control
+    end
+
+    it 'waits before yielding if not enough requests remain' do
+      expect(client).to receive(:requests_remaining?).and_return(false)
+      expect(client).to receive(:raise_or_wait_for_rate_limit)
+
+      expect { |b| client.with_rate_limit(&b) }.to yield_control
+    end
+
+    it 'waits and retries the operation if all requests were consumed in the supplied block' do
+      retries = 0
+
+      expect(client).to receive(:requests_remaining?).and_return(true)
+      expect(client).to receive(:raise_or_wait_for_rate_limit)
+
+      client.with_rate_limit do
+        if retries.zero?
+          retries += 1
+          raise(Octokit::TooManyRequests)
+        end
+      end
+
+      expect(retries).to eq(1)
+    end
+
+    it 'increments the request count counter' do
+      expect(client.request_count_counter)
+        .to receive(:increment)
+        .and_call_original
+
+      expect(client).to receive(:requests_remaining?).and_return(true)
+
+      client.with_rate_limit { }
+    end
+
+    it 'ignores rate limiting when disabled' do
+      expect(client)
+        .to receive(:rate_limiting_enabled?)
+        .and_return(false)
+
+      expect(client)
+        .not_to receive(:requests_remaining?)
+
+      expect(client.with_rate_limit { 10 }).to eq(10)
+    end
+  end
+
+  describe '#requests_remaining?' do
+    let(:client) { described_class.new('foo') }
+
+    it 'returns true if enough requests remain' do
+      expect(client).to receive(:remaining_requests).and_return(9000)
+
+      expect(client.requests_remaining?).to eq(true)
+    end
+
+    it 'returns false if not enough requests remain' do
+      expect(client).to receive(:remaining_requests).and_return(1)
+
+      expect(client.requests_remaining?).to eq(false)
+    end
+  end
+
+  describe '#raise_or_wait_for_rate_limit' do
+    it 'raises RateLimitError when running in parallel mode' do
+      client = described_class.new('foo', parallel: true)
+
+      expect { client.raise_or_wait_for_rate_limit }
+        .to raise_error(Gitlab::GithubImport::RateLimitError)
     end
 
-    it 'uses supplied value' do
-      expect(client.client.options[:connection_opts][:ssl]).to eq({ verify: false })
-      expect(client.api.connection_options[:ssl]).to eq({ verify: false })
+    it 'sleeps when running in sequential mode' do
+      client = described_class.new('foo', parallel: false)
+
+      expect(client).to receive(:rate_limit_resets_in).and_return(1)
+      expect(client).to receive(:sleep).with(1)
+
+      client.raise_or_wait_for_rate_limit
+    end
+
+    it 'increments the rate limit counter' do
+      client = described_class.new('foo', parallel: false)
+
+      expect(client)
+        .to receive(:rate_limit_resets_in)
+        .and_return(1)
+
+      expect(client)
+        .to receive(:sleep)
+        .with(1)
+
+      expect(client.rate_limit_counter)
+        .to receive(:increment)
+        .and_call_original
+
+      client.raise_or_wait_for_rate_limit
+    end
+  end
+
+  describe '#remaining_requests' do
+    it 'returns the number of remaining requests' do
+      client = described_class.new('foo')
+      rate_limit = double(remaining: 1)
+
+      expect(client.octokit).to receive(:rate_limit).and_return(rate_limit)
+      expect(client.remaining_requests).to eq(1)
+    end
+  end
+
+  describe '#rate_limit_resets_in' do
+    it 'returns the number of seconds after which the rate limit is reset' do
+      client = described_class.new('foo')
+      rate_limit = double(resets_in: 1)
+
+      expect(client.octokit).to receive(:rate_limit).and_return(rate_limit)
+
+      expect(client.rate_limit_resets_in).to eq(6)
     end
   end
 
   describe '#api_endpoint' do
-    context 'when provider does not specity an API endpoint' do
-      it 'uses GitHub root API endpoint' do
-        expect(client.api.api_endpoint).to eq 'https://api.github.com/'
+    let(:client) { described_class.new('foo') }
+
+    context 'without a custom endpoint configured in Omniauth' do
+      it 'returns the default API endpoint' do
+        expect(client)
+          .to receive(:custom_api_endpoint)
+          .and_return(nil)
+
+        expect(client.api_endpoint).to eq('https://api.github.com')
       end
     end
 
-    context 'when provider specify a custom API endpoint' do
-      before do
-        github_provider['args']['client_options']['site'] = 'https://github.company.com/'
+    context 'with a custom endpoint configured in Omniauth' do
+      it 'returns the custom endpoint' do
+        endpoint = 'https://github.kittens.com'
+
+        expect(client)
+          .to receive(:custom_api_endpoint)
+          .and_return(endpoint)
+
+        expect(client.api_endpoint).to eq(endpoint)
       end
+    end
+  end
+
+  describe '#custom_api_endpoint' do
+    let(:client) { described_class.new('foo') }
+
+    context 'without a custom endpoint' do
+      it 'returns nil' do
+        expect(client)
+          .to receive(:github_omniauth_provider)
+          .and_return({})
+
+        expect(client.custom_api_endpoint).to be_nil
+      end
+    end
+
+    context 'with a custom endpoint' do
+      it 'returns the API endpoint' do
+        endpoint = 'https://github.kittens.com'
+
+        expect(client)
+          .to receive(:github_omniauth_provider)
+          .and_return({ 'args' => { 'client_options' => { 'site' => endpoint } } })
 
-      it 'uses the custom API endpoint' do
-        expect(OmniAuth::Strategies::GitHub).not_to receive(:default_options)
-        expect(client.api.api_endpoint).to eq 'https://github.company.com/'
+        expect(client.custom_api_endpoint).to eq(endpoint)
       end
     end
+  end
+
+  describe '#default_api_endpoint' do
+    it 'returns the default API endpoint' do
+      client = described_class.new('foo')
+
+      expect(client.default_api_endpoint).to eq('https://api.github.com')
+    end
+  end
+
+  describe '#verify_ssl' do
+    let(:client) { described_class.new('foo') }
 
-    context 'when given a host' do
-      subject(:client) { described_class.new(token, host: 'https://try.gitea.io/') }
+    context 'without a custom configuration' do
+      it 'returns true' do
+        expect(client)
+          .to receive(:github_omniauth_provider)
+          .and_return({})
 
-      it 'builds a endpoint with the given host and the default API version' do
-        expect(client.api.api_endpoint).to eq 'https://try.gitea.io/api/v3/'
+        expect(client.verify_ssl).to eq(true)
       end
     end
 
-    context 'when given an API version' do
-      subject(:client) { described_class.new(token, api_version: 'v3') }
+    context 'with a custom configuration' do
+      it 'returns the configured value' do
+        expect(client.verify_ssl).to eq(false)
+      end
+    end
+  end
+
+  describe '#github_omniauth_provider' do
+    let(:client) { described_class.new('foo') }
 
-      it 'does not use the API version without a host' do
-        expect(client.api.api_endpoint).to eq 'https://api.github.com/'
+    context 'without a configured provider' do
+      it 'returns an empty Hash' do
+        expect(Gitlab.config.omniauth)
+          .to receive(:providers)
+          .and_return([])
+
+        expect(client.github_omniauth_provider).to eq({})
       end
     end
 
-    context 'when given a host and version' do
-      subject(:client) { described_class.new(token, host: 'https://try.gitea.io/', api_version: 'v3') }
+    context 'with a configured provider' do
+      it 'returns the provider details as a Hash' do
+        hash = client.github_omniauth_provider
 
-      it 'builds a endpoint with the given options' do
-        expect(client.api.api_endpoint).to eq 'https://try.gitea.io/api/v3/'
+        expect(hash['name']).to eq('github')
+        expect(hash['url']).to eq('https://github.com/')
       end
     end
   end
 
-  it 'does not raise error when rate limit is disabled' do
-    stub_request(:get, /api.github.com/)
-    allow(client.api).to receive(:rate_limit!).and_raise(Octokit::NotFound)
+  describe '#rate_limiting_enabled?' do
+    let(:client) { described_class.new('foo') }
 
-    expect { client.issues {} }.not_to raise_error
+    it 'returns true when using GitHub.com' do
+      expect(client.rate_limiting_enabled?).to eq(true)
+    end
+
+    it 'returns false for GitHub enterprise installations' do
+      expect(client)
+        .to receive(:api_endpoint)
+        .and_return('https://github.kittens.com/')
+
+      expect(client.rate_limiting_enabled?).to eq(false)
+    end
   end
 end
diff --git a/spec/lib/gitlab/github_import/importer/diff_note_importer_spec.rb b/spec/lib/gitlab/github_import/importer/diff_note_importer_spec.rb
new file mode 100644
index 00000000000..1568c657a1e
--- /dev/null
+++ b/spec/lib/gitlab/github_import/importer/diff_note_importer_spec.rb
@@ -0,0 +1,152 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::Importer::DiffNoteImporter do
+  let(:project) { create(:project) }
+  let(:client) { double(:client) }
+  let(:user) { create(:user) }
+  let(:created_at) { Time.new(2017, 1, 1, 12, 00) }
+  let(:updated_at) { Time.new(2017, 1, 1, 12, 15) }
+
+  let(:hunk) do
+    '@@ -1 +1 @@
+    -Hello
+    +Hello world'
+  end
+
+  let(:note) do
+    Gitlab::GithubImport::Representation::DiffNote.new(
+      noteable_type: 'MergeRequest',
+      noteable_id: 1,
+      commit_id: '123abc',
+      file_path: 'README.md',
+      diff_hunk: hunk,
+      author: Gitlab::GithubImport::Representation::User
+        .new(id: user.id, login: user.username),
+      note: 'Hello',
+      created_at: created_at,
+      updated_at: updated_at,
+      github_id: 1
+    )
+  end
+
+  let(:importer) { described_class.new(note, project, client) }
+
+  describe '#execute' do
+    context 'when the merge request no longer exists' do
+      it 'does not import anything' do
+        expect(Gitlab::Database).not_to receive(:bulk_insert)
+
+        importer.execute
+      end
+    end
+
+    context 'when the merge request exists' do
+      let!(:merge_request) do
+        create(:merge_request, source_project: project, target_project: project)
+      end
+
+      before do
+        allow(importer)
+          .to receive(:find_merge_request_id)
+          .and_return(merge_request.id)
+      end
+
+      it 'imports the note' do
+        allow(importer.user_finder)
+          .to receive(:author_id_for)
+          .and_return([user.id, true])
+
+        expect(Gitlab::Database)
+          .to receive(:bulk_insert)
+          .with(
+            LegacyDiffNote.table_name,
+            [
+              {
+                noteable_type: 'MergeRequest',
+                noteable_id: merge_request.id,
+                project_id: project.id,
+                author_id: user.id,
+                note: 'Hello',
+                system: false,
+                commit_id: '123abc',
+                line_code: note.line_code,
+                type: 'LegacyDiffNote',
+                created_at: created_at,
+                updated_at: updated_at,
+                st_diff: note.diff_hash.to_yaml
+              }
+            ]
+          )
+          .and_call_original
+
+        importer.execute
+      end
+
+      it 'imports the note when the author could not be found' do
+        allow(importer.user_finder)
+          .to receive(:author_id_for)
+          .and_return([project.creator_id, false])
+
+        expect(Gitlab::Database)
+          .to receive(:bulk_insert)
+          .with(
+            LegacyDiffNote.table_name,
+            [
+              {
+                noteable_type: 'MergeRequest',
+                noteable_id: merge_request.id,
+                project_id: project.id,
+                author_id: project.creator_id,
+                note: "*Created by: #{user.username}*\n\nHello",
+                system: false,
+                commit_id: '123abc',
+                line_code: note.line_code,
+                type: 'LegacyDiffNote',
+                created_at: created_at,
+                updated_at: updated_at,
+                st_diff: note.diff_hash.to_yaml
+              }
+            ]
+          )
+          .and_call_original
+
+        importer.execute
+      end
+
+      it 'produces a valid LegacyDiffNote' do
+        allow(importer.user_finder)
+          .to receive(:author_id_for)
+          .and_return([user.id, true])
+
+        importer.execute
+
+        note = project.notes.diff_notes.take
+
+        expect(note).to be_valid
+        expect(note.diff).to be_an_instance_of(Gitlab::Git::Diff)
+      end
+
+      it 'does not import the note when a foreign key error is raised' do
+        allow(importer.user_finder)
+          .to receive(:author_id_for)
+          .and_return([project.creator_id, false])
+
+        expect(Gitlab::Database)
+          .to receive(:bulk_insert)
+          .and_raise(ActiveRecord::InvalidForeignKey, 'invalid foreign key')
+
+        expect { importer.execute }.not_to raise_error
+      end
+    end
+  end
+
+  describe '#find_merge_request_id' do
+    it 'returns a merge request ID' do
+      expect_any_instance_of(Gitlab::GithubImport::IssuableFinder)
+        .to receive(:database_id)
+        .and_return(10)
+
+      expect(importer.find_merge_request_id).to eq(10)
+    end
+  end
+end
diff --git a/spec/lib/gitlab/github_import/importer/diff_notes_importer_spec.rb b/spec/lib/gitlab/github_import/importer/diff_notes_importer_spec.rb
new file mode 100644
index 00000000000..4713c6795bb
--- /dev/null
+++ b/spec/lib/gitlab/github_import/importer/diff_notes_importer_spec.rb
@@ -0,0 +1,119 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::Importer::DiffNotesImporter do
+  let(:project) { double(:project, id: 4, import_source: 'foo/bar') }
+  let(:client) { double(:client) }
+
+  let(:github_comment) do
+    double(
+      :response,
+      html_url: 'https://github.com/foo/bar/pull/42',
+      path: 'README.md',
+      commit_id: '123abc',
+      diff_hunk: "@@ -1 +1 @@\n-Hello\n+Hello world",
+      user: double(:user, id: 4, login: 'alice'),
+      body: 'Hello world',
+      created_at: Time.zone.now,
+      updated_at: Time.zone.now,
+      id: 1
+    )
+  end
+
+  describe '#parallel?' do
+    it 'returns true when running in parallel mode' do
+      importer = described_class.new(project, client)
+      expect(importer).to be_parallel
+    end
+
+    it 'returns false when running in sequential mode' do
+      importer = described_class.new(project, client, parallel: false)
+      expect(importer).not_to be_parallel
+    end
+  end
+
+  describe '#execute' do
+    context 'when running in parallel mode' do
+      it 'imports diff notes in parallel' do
+        importer = described_class.new(project, client)
+
+        expect(importer).to receive(:parallel_import)
+
+        importer.execute
+      end
+    end
+
+    context 'when running in sequential mode' do
+      it 'imports diff notes in sequence' do
+        importer = described_class.new(project, client, parallel: false)
+
+        expect(importer).to receive(:sequential_import)
+
+        importer.execute
+      end
+    end
+  end
+
+  describe '#sequential_import' do
+    it 'imports each diff note in sequence' do
+      importer = described_class.new(project, client, parallel: false)
+      diff_note_importer = double(:diff_note_importer)
+
+      allow(importer)
+        .to receive(:each_object_to_import)
+        .and_yield(github_comment)
+
+      expect(Gitlab::GithubImport::Importer::DiffNoteImporter)
+        .to receive(:new)
+        .with(
+          an_instance_of(Gitlab::GithubImport::Representation::DiffNote),
+          project,
+          client
+        )
+        .and_return(diff_note_importer)
+
+      expect(diff_note_importer).to receive(:execute)
+
+      importer.sequential_import
+    end
+  end
+
+  describe '#parallel_import' do
+    it 'imports each diff note in parallel' do
+      importer = described_class.new(project, client)
+
+      allow(importer)
+        .to receive(:each_object_to_import)
+        .and_yield(github_comment)
+
+      expect(Gitlab::GithubImport::ImportDiffNoteWorker)
+        .to receive(:perform_async)
+        .with(project.id, an_instance_of(Hash), an_instance_of(String))
+
+      waiter = importer.parallel_import
+
+      expect(waiter).to be_an_instance_of(Gitlab::JobWaiter)
+      expect(waiter.jobs_remaining).to eq(1)
+    end
+  end
+
+  describe '#id_for_already_imported_cache' do
+    it 'returns the ID of the given note' do
+      importer = described_class.new(project, client)
+
+      expect(importer.id_for_already_imported_cache(github_comment))
+        .to eq(1)
+    end
+  end
+
+  describe '#collection_options' do
+    it 'returns an empty Hash' do
+      # For large projects (e.g. kubernetes/kubernetes) GitHub's API may produce
+      # HTTP 500 errors when using explicit sorting options, regardless of what
+      # order you sort in. Not using any sorting options at all allows us to
+      # work around this.
+      importer = described_class.new(project, client)
+
+      expect(importer.collection_options).to eq({})
+    end
+  end
+end
diff --git a/spec/lib/gitlab/github_import/importer/issue_and_label_links_importer_spec.rb b/spec/lib/gitlab/github_import/importer/issue_and_label_links_importer_spec.rb
new file mode 100644
index 00000000000..665b31ef244
--- /dev/null
+++ b/spec/lib/gitlab/github_import/importer/issue_and_label_links_importer_spec.rb
@@ -0,0 +1,27 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::Importer::IssueAndLabelLinksImporter do
+  describe '#execute' do
+    it 'imports an issue and its labels' do
+      issue = double(:issue)
+      project = double(:project)
+      client = double(:client)
+      label_links_instance = double(:label_links_importer)
+      importer = described_class.new(issue, project, client)
+
+      expect(Gitlab::GithubImport::Importer::IssueImporter)
+        .to receive(:import_if_issue)
+        .with(issue, project, client)
+
+      expect(Gitlab::GithubImport::Importer::LabelLinksImporter)
+        .to receive(:new)
+        .with(issue, project, client)
+        .and_return(label_links_instance)
+
+      expect(label_links_instance)
+        .to receive(:execute)
+
+      importer.execute
+    end
+  end
+end
diff --git a/spec/lib/gitlab/github_import/importer/issue_importer_spec.rb b/spec/lib/gitlab/github_import/importer/issue_importer_spec.rb
new file mode 100644
index 00000000000..d34ca0b76b8
--- /dev/null
+++ b/spec/lib/gitlab/github_import/importer/issue_importer_spec.rb
@@ -0,0 +1,201 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::Importer::IssueImporter, :clean_gitlab_redis_cache do
+  let(:project) { create(:project) }
+  let(:client) { double(:client) }
+  let(:user) { create(:user) }
+  let(:milestone) { create(:milestone, project: project) }
+  let(:created_at) { Time.new(2017, 1, 1, 12, 00) }
+  let(:updated_at) { Time.new(2017, 1, 1, 12, 15) }
+
+  let(:issue) do
+    Gitlab::GithubImport::Representation::Issue.new(
+      iid: 42,
+      title: 'My Issue',
+      description: 'This is my issue',
+      milestone_number: 1,
+      state: :opened,
+      assignees: [
+        Gitlab::GithubImport::Representation::User.new(id: 4, login: 'alice'),
+        Gitlab::GithubImport::Representation::User.new(id: 5, login: 'bob')
+      ],
+      label_names: %w[bug],
+      author: Gitlab::GithubImport::Representation::User.new(id: 4, login: 'alice'),
+      created_at: created_at,
+      updated_at: updated_at,
+      pull_request: false
+    )
+  end
+
+  describe '.import_if_issue' do
+    it 'imports an issuable if it is a regular issue' do
+      importer = double(:importer)
+
+      expect(described_class)
+        .to receive(:new)
+        .with(issue, project, client)
+        .and_return(importer)
+
+      expect(importer).to receive(:execute)
+
+      described_class.import_if_issue(issue, project, client)
+    end
+
+    it 'does not import the issuable if it is a pull request' do
+      expect(issue).to receive(:pull_request?).and_return(true)
+
+      expect(described_class).not_to receive(:new)
+
+      described_class.import_if_issue(issue, project, client)
+    end
+  end
+
+  describe '#execute' do
+    let(:importer) { described_class.new(issue, project, client) }
+
+    it 'creates the issue and assignees' do
+      expect(importer)
+        .to receive(:create_issue)
+        .and_return(10)
+
+      expect(importer)
+        .to receive(:create_assignees)
+        .with(10)
+
+      expect(importer.issuable_finder)
+        .to receive(:cache_database_id)
+        .with(10)
+
+      importer.execute
+    end
+  end
+
+  describe '#create_issue' do
+    let(:importer) { described_class.new(issue, project, client) }
+
+    before do
+      allow(importer.milestone_finder)
+        .to receive(:id_for)
+        .with(issue)
+        .and_return(milestone.id)
+    end
+
+    context 'when the issue author could be found' do
+      it 'creates the issue with the found author as the issue author' do
+        allow(importer.user_finder)
+          .to receive(:author_id_for)
+          .with(issue)
+          .and_return([user.id, true])
+
+        expect(Gitlab::GithubImport)
+          .to receive(:insert_and_return_id)
+          .with(
+            {
+              iid: 42,
+              title: 'My Issue',
+              author_id: user.id,
+              project_id: project.id,
+              description: 'This is my issue',
+              milestone_id: milestone.id,
+              state: :opened,
+              created_at: created_at,
+              updated_at: updated_at
+            },
+            project.issues
+          )
+          .and_call_original
+
+        importer.create_issue
+      end
+    end
+
+    context 'when the issue author could not be found' do
+      it 'creates the issue with the project creator as the issue author' do
+        allow(importer.user_finder)
+          .to receive(:author_id_for)
+          .with(issue)
+          .and_return([project.creator_id, false])
+
+        expect(Gitlab::GithubImport)
+          .to receive(:insert_and_return_id)
+          .with(
+            {
+              iid: 42,
+              title: 'My Issue',
+              author_id: project.creator_id,
+              project_id: project.id,
+              description: "*Created by: alice*\n\nThis is my issue",
+              milestone_id: milestone.id,
+              state: :opened,
+              created_at: created_at,
+              updated_at: updated_at
+            },
+            project.issues
+          )
+          .and_call_original
+
+        importer.create_issue
+      end
+    end
+
+    context 'when the import fails due to a foreign key error' do
+      it 'does not raise any errors' do
+        allow(importer.user_finder)
+          .to receive(:author_id_for)
+          .with(issue)
+          .and_return([user.id, true])
+
+        expect(Gitlab::GithubImport)
+          .to receive(:insert_and_return_id)
+          .and_raise(ActiveRecord::InvalidForeignKey, 'invalid foreign key')
+
+        expect { importer.create_issue }.not_to raise_error
+      end
+    end
+
+    it 'produces a valid Issue' do
+      allow(importer.user_finder)
+        .to receive(:author_id_for)
+        .with(issue)
+        .and_return([user.id, true])
+
+      importer.create_issue
+
+      expect(project.issues.take).to be_valid
+    end
+
+    it 'returns the ID of the created issue' do
+      allow(importer.user_finder)
+        .to receive(:author_id_for)
+        .with(issue)
+        .and_return([user.id, true])
+
+      expect(importer.create_issue).to be_a_kind_of(Numeric)
+    end
+  end
+
+  describe '#create_assignees' do
+    it 'inserts the issue assignees in bulk' do
+      importer = described_class.new(issue, project, client)
+
+      allow(importer.user_finder)
+        .to receive(:user_id_for)
+        .ordered.with(issue.assignees[0])
+        .and_return(4)
+
+      allow(importer.user_finder)
+        .to receive(:user_id_for)
+        .ordered.with(issue.assignees[1])
+        .and_return(5)
+
+      expect(Gitlab::Database)
+        .to receive(:bulk_insert)
+        .with(
+          IssueAssignee.table_name,
+          [{ issue_id: 1, user_id: 4 }, { issue_id: 1, user_id: 5 }]
+        )
+
+      importer.create_assignees(1)
+    end
+  end
+end
diff --git a/spec/lib/gitlab/github_import/importer/issues_importer_spec.rb b/spec/lib/gitlab/github_import/importer/issues_importer_spec.rb
new file mode 100644
index 00000000000..e237e79e94b
--- /dev/null
+++ b/spec/lib/gitlab/github_import/importer/issues_importer_spec.rb
@@ -0,0 +1,111 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::Importer::IssuesImporter do
+  let(:project) { double(:project, id: 4, import_source: 'foo/bar') }
+  let(:client) { double(:client) }
+  let(:created_at) { Time.new(2017, 1, 1, 12, 00) }
+  let(:updated_at) { Time.new(2017, 1, 1, 12, 15) }
+
+  let(:github_issue) do
+    double(
+      :response,
+      number: 42,
+      title: 'My Issue',
+      body: 'This is my issue',
+      milestone: double(:milestone, number: 4),
+      state: 'open',
+      assignees: [double(:user, id: 4, login: 'alice')],
+      labels: [double(:label, name: 'bug')],
+      user: double(:user, id: 4, login: 'alice'),
+      created_at: created_at,
+      updated_at: updated_at,
+      pull_request: false
+    )
+  end
+
+  describe '#parallel?' do
+    it 'returns true when running in parallel mode' do
+      importer = described_class.new(project, client)
+      expect(importer).to be_parallel
+    end
+
+    it 'returns false when running in sequential mode' do
+      importer = described_class.new(project, client, parallel: false)
+      expect(importer).not_to be_parallel
+    end
+  end
+
+  describe '#execute' do
+    context 'when running in parallel mode' do
+      it 'imports issues in parallel' do
+        importer = described_class.new(project, client)
+
+        expect(importer).to receive(:parallel_import)
+
+        importer.execute
+      end
+    end
+
+    context 'when running in sequential mode' do
+      it 'imports issues in sequence' do
+        importer = described_class.new(project, client, parallel: false)
+
+        expect(importer).to receive(:sequential_import)
+
+        importer.execute
+      end
+    end
+  end
+
+  describe '#sequential_import' do
+    it 'imports each issue in sequence' do
+      importer = described_class.new(project, client, parallel: false)
+      issue_importer = double(:importer)
+
+      allow(importer)
+        .to receive(:each_object_to_import)
+        .and_yield(github_issue)
+
+      expect(Gitlab::GithubImport::Importer::IssueAndLabelLinksImporter)
+        .to receive(:new)
+        .with(
+          an_instance_of(Gitlab::GithubImport::Representation::Issue),
+          project,
+          client
+        )
+        .and_return(issue_importer)
+
+      expect(issue_importer).to receive(:execute)
+
+      importer.sequential_import
+    end
+  end
+
+  describe '#parallel_import' do
+    it 'imports each issue in parallel' do
+      importer = described_class.new(project, client)
+
+      allow(importer)
+        .to receive(:each_object_to_import)
+        .and_yield(github_issue)
+
+      expect(Gitlab::GithubImport::ImportIssueWorker)
+        .to receive(:perform_async)
+        .with(project.id, an_instance_of(Hash), an_instance_of(String))
+
+      waiter = importer.parallel_import
+
+      expect(waiter).to be_an_instance_of(Gitlab::JobWaiter)
+      expect(waiter.jobs_remaining).to eq(1)
+    end
+  end
+
+  describe '#id_for_already_imported_cache' do
+    it 'returns the issue number of the given issue' do
+      importer = described_class.new(project, client)
+
+      expect(importer.id_for_already_imported_cache(github_issue))
+        .to eq(42)
+    end
+  end
+end
diff --git a/spec/lib/gitlab/github_import/importer/label_links_importer_spec.rb b/spec/lib/gitlab/github_import/importer/label_links_importer_spec.rb
new file mode 100644
index 00000000000..e2a71e78574
--- /dev/null
+++ b/spec/lib/gitlab/github_import/importer/label_links_importer_spec.rb
@@ -0,0 +1,82 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::Importer::LabelLinksImporter do
+  let(:project) { create(:project) }
+  let(:client) { double(:client) }
+  let(:issue) do
+    double(
+      :issue,
+      iid: 4,
+      label_names: %w[bug],
+      issuable_type: Issue,
+      pull_request?: false
+    )
+  end
+
+  let(:importer) { described_class.new(issue, project, client) }
+
+  describe '#execute' do
+    it 'creates the label links' do
+      importer = described_class.new(issue, project, client)
+
+      expect(importer).to receive(:create_labels)
+
+      importer.execute
+    end
+  end
+
+  describe '#create_labels' do
+    it 'inserts the label links in bulk' do
+      expect(importer.label_finder)
+        .to receive(:id_for)
+        .with('bug')
+        .and_return(2)
+
+      expect(importer)
+        .to receive(:find_target_id)
+        .and_return(1)
+
+      Timecop.freeze do
+        expect(Gitlab::Database)
+          .to receive(:bulk_insert)
+          .with(
+            LabelLink.table_name,
+            [
+              {
+                label_id: 2,
+                target_id: 1,
+                target_type: Issue,
+                created_at: Time.zone.now,
+                updated_at: Time.zone.now
+              }
+            ]
+          )
+
+        importer.create_labels
+      end
+    end
+
+    it 'does not insert label links for non-existing labels' do
+      expect(importer.label_finder)
+        .to receive(:id_for)
+        .with('bug')
+        .and_return(nil)
+
+      expect(Gitlab::Database)
+        .to receive(:bulk_insert)
+        .with(LabelLink.table_name, [])
+
+      importer.create_labels
+    end
+  end
+
+  describe '#find_target_id' do
+    it 'returns the ID of the issuable to create the label link for' do
+      expect_any_instance_of(Gitlab::GithubImport::IssuableFinder)
+        .to receive(:database_id)
+        .and_return(10)
+
+      expect(importer.find_target_id).to eq(10)
+    end
+  end
+end
diff --git a/spec/lib/gitlab/github_import/importer/labels_importer_spec.rb b/spec/lib/gitlab/github_import/importer/labels_importer_spec.rb
new file mode 100644
index 00000000000..156ef96a0fa
--- /dev/null
+++ b/spec/lib/gitlab/github_import/importer/labels_importer_spec.rb
@@ -0,0 +1,107 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::Importer::LabelsImporter, :clean_gitlab_redis_cache do
+  let(:project) { create(:project, import_source: 'foo/bar') }
+  let(:client) { double(:client) }
+  let(:importer) { described_class.new(project, client) }
+
+  describe '#execute' do
+    it 'imports the labels in bulk' do
+      label_hash = { title: 'bug', color: '#fffaaa' }
+
+      expect(importer)
+        .to receive(:build_labels)
+        .and_return([label_hash])
+
+      expect(importer)
+        .to receive(:bulk_insert)
+        .with(Label, [label_hash])
+
+      expect(importer)
+        .to receive(:build_labels_cache)
+
+      importer.execute
+    end
+  end
+
+  describe '#build_labels' do
+    it 'returns an Array containnig label rows' do
+      label = double(:label, name: 'bug', color: 'ffffff')
+
+      expect(importer).to receive(:each_label).and_return([label])
+
+      rows = importer.build_labels
+
+      expect(rows.length).to eq(1)
+      expect(rows[0][:title]).to eq('bug')
+    end
+
+    it 'does not create labels that already exist' do
+      create(:label, project: project, title: 'bug')
+
+      label = double(:label, name: 'bug', color: 'ffffff')
+
+      expect(importer).to receive(:each_label).and_return([label])
+      expect(importer.build_labels).to be_empty
+    end
+  end
+
+  describe '#build_labels_cache' do
+    it 'builds the labels cache' do
+      expect_any_instance_of(Gitlab::GithubImport::LabelFinder)
+        .to receive(:build_cache)
+
+      importer.build_labels_cache
+    end
+  end
+
+  describe '#build' do
+    let(:label_hash) do
+      importer.build(double(:label, name: 'bug', color: 'ffffff'))
+    end
+
+    it 'returns the attributes of the label as a Hash' do
+      expect(label_hash).to be_an_instance_of(Hash)
+    end
+
+    context 'the returned Hash' do
+      it 'includes the label title' do
+        expect(label_hash[:title]).to eq('bug')
+      end
+
+      it 'includes the label color' do
+        expect(label_hash[:color]).to eq('#ffffff')
+      end
+
+      it 'includes the project ID' do
+        expect(label_hash[:project_id]).to eq(project.id)
+      end
+
+      it 'includes the label type' do
+        expect(label_hash[:type]).to eq('ProjectLabel')
+      end
+
+      it 'includes the created timestamp' do
+        Timecop.freeze do
+          expect(label_hash[:created_at]).to eq(Time.zone.now)
+        end
+      end
+
+      it 'includes the updated timestamp' do
+        Timecop.freeze do
+          expect(label_hash[:updated_at]).to eq(Time.zone.now)
+        end
+      end
+    end
+  end
+
+  describe '#each_label' do
+    it 'returns the labels' do
+      expect(client)
+        .to receive(:labels)
+        .with('foo/bar')
+
+      importer.each_label
+    end
+  end
+end
diff --git a/spec/lib/gitlab/github_import/importer/milestones_importer_spec.rb b/spec/lib/gitlab/github_import/importer/milestones_importer_spec.rb
new file mode 100644
index 00000000000..b1cac3b6e46
--- /dev/null
+++ b/spec/lib/gitlab/github_import/importer/milestones_importer_spec.rb
@@ -0,0 +1,120 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::Importer::MilestonesImporter, :clean_gitlab_redis_cache do
+  let(:project) { create(:project, import_source: 'foo/bar') }
+  let(:client) { double(:client) }
+  let(:importer) { described_class.new(project, client) }
+  let(:created_at) { Time.new(2017, 1, 1, 12, 00) }
+  let(:updated_at) { Time.new(2017, 1, 1, 12, 15) }
+
+  let(:milestone) do
+    double(
+      :milestone,
+      number: 1,
+      title: '1.0',
+      description: 'The first release',
+      state: 'open',
+      created_at: created_at,
+      updated_at: updated_at
+    )
+  end
+
+  describe '#execute' do
+    it 'imports the milestones in bulk' do
+      milestone_hash = { number: 1, title: '1.0' }
+
+      expect(importer)
+        .to receive(:build_milestones)
+        .and_return([milestone_hash])
+
+      expect(importer)
+        .to receive(:bulk_insert)
+        .with(Milestone, [milestone_hash])
+
+      expect(importer)
+        .to receive(:build_milestones_cache)
+
+      importer.execute
+    end
+  end
+
+  describe '#build_milestones' do
+    it 'returns an Array containnig milestone rows' do
+      expect(importer)
+        .to receive(:each_milestone)
+        .and_return([milestone])
+
+      rows = importer.build_milestones
+
+      expect(rows.length).to eq(1)
+      expect(rows[0][:title]).to eq('1.0')
+    end
+
+    it 'does not create milestones that already exist' do
+      create(:milestone, project: project, title: '1.0', iid: 1)
+
+      expect(importer)
+        .to receive(:each_milestone)
+        .and_return([milestone])
+
+      expect(importer.build_milestones).to be_empty
+    end
+  end
+
+  describe '#build_milestones_cache' do
+    it 'builds the milestones cache' do
+      expect_any_instance_of(Gitlab::GithubImport::MilestoneFinder)
+        .to receive(:build_cache)
+
+      importer.build_milestones_cache
+    end
+  end
+
+  describe '#build' do
+    let(:milestone_hash) { importer.build(milestone) }
+
+    it 'returns the attributes of the milestone as a Hash' do
+      expect(milestone_hash).to be_an_instance_of(Hash)
+    end
+
+    context 'the returned Hash' do
+      it 'includes the milestone number' do
+        expect(milestone_hash[:iid]).to eq(1)
+      end
+
+      it 'includes the milestone title' do
+        expect(milestone_hash[:title]).to eq('1.0')
+      end
+
+      it 'includes the milestone description' do
+        expect(milestone_hash[:description]).to eq('The first release')
+      end
+
+      it 'includes the project ID' do
+        expect(milestone_hash[:project_id]).to eq(project.id)
+      end
+
+      it 'includes the milestone state' do
+        expect(milestone_hash[:state]).to eq(:active)
+      end
+
+      it 'includes the created timestamp' do
+        expect(milestone_hash[:created_at]).to eq(created_at)
+      end
+
+      it 'includes the updated timestamp' do
+        expect(milestone_hash[:updated_at]).to eq(updated_at)
+      end
+    end
+  end
+
+  describe '#each_milestone' do
+    it 'returns the milestones' do
+      expect(client)
+        .to receive(:milestones)
+        .with('foo/bar', state: 'all')
+
+      importer.each_milestone
+    end
+  end
+end
diff --git a/spec/lib/gitlab/github_import/importer/note_importer_spec.rb b/spec/lib/gitlab/github_import/importer/note_importer_spec.rb
new file mode 100644
index 00000000000..9bdcc42be19
--- /dev/null
+++ b/spec/lib/gitlab/github_import/importer/note_importer_spec.rb
@@ -0,0 +1,151 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::Importer::NoteImporter do
+  let(:client) { double(:client) }
+  let(:project) { create(:project) }
+  let(:user) { create(:user) }
+  let(:created_at) { Time.new(2017, 1, 1, 12, 00) }
+  let(:updated_at) { Time.new(2017, 1, 1, 12, 15) }
+
+  let(:github_note) do
+    Gitlab::GithubImport::Representation::Note.new(
+      noteable_id: 1,
+      noteable_type: 'Issue',
+      author: Gitlab::GithubImport::Representation::User.new(id: 4, login: 'alice'),
+      note: 'This is my note',
+      created_at: created_at,
+      updated_at: updated_at,
+      github_id: 1
+    )
+  end
+
+  let(:importer) { described_class.new(github_note, project, client) }
+
+  describe '#execute' do
+    context 'when the noteable exists' do
+      let!(:issue_row) { create(:issue, project: project, iid: 1) }
+
+      before do
+        allow(importer)
+          .to receive(:find_noteable_id)
+          .and_return(issue_row.id)
+      end
+
+      context 'when the author could be found' do
+        it 'imports the note with the found author as the note author' do
+          expect(importer.user_finder)
+            .to receive(:author_id_for)
+            .with(github_note)
+            .and_return([user.id, true])
+
+          expect(Gitlab::Database)
+            .to receive(:bulk_insert)
+            .with(
+              Note.table_name,
+              [
+                {
+                  noteable_type: 'Issue',
+                  noteable_id: issue_row.id,
+                  project_id: project.id,
+                  author_id: user.id,
+                  note: 'This is my note',
+                  system: false,
+                  created_at: created_at,
+                  updated_at: updated_at
+                }
+              ]
+            )
+            .and_call_original
+
+          importer.execute
+        end
+      end
+
+      context 'when the note author could not be found' do
+        it 'imports the note with the project creator as the note author' do
+          expect(importer.user_finder)
+            .to receive(:author_id_for)
+            .with(github_note)
+            .and_return([project.creator_id, false])
+
+          expect(Gitlab::Database)
+            .to receive(:bulk_insert)
+            .with(
+              Note.table_name,
+              [
+                {
+                  noteable_type: 'Issue',
+                  noteable_id: issue_row.id,
+                  project_id: project.id,
+                  author_id: project.creator_id,
+                  note: "*Created by: alice*\n\nThis is my note",
+                  system: false,
+                  created_at: created_at,
+                  updated_at: updated_at
+                }
+              ]
+            )
+            .and_call_original
+
+          importer.execute
+        end
+      end
+    end
+
+    context 'when the noteable does not exist' do
+      it 'does not import the note' do
+        expect(Gitlab::Database).not_to receive(:bulk_insert)
+
+        importer.execute
+      end
+    end
+
+    context 'when the import fails due to a foreign key error' do
+      it 'does not raise any errors' do
+        issue_row = create(:issue, project: project, iid: 1)
+
+        allow(importer)
+          .to receive(:find_noteable_id)
+          .and_return(issue_row.id)
+
+        allow(importer.user_finder)
+          .to receive(:author_id_for)
+          .with(github_note)
+          .and_return([user.id, true])
+
+        expect(Gitlab::Database)
+          .to receive(:bulk_insert)
+          .and_raise(ActiveRecord::InvalidForeignKey, 'invalid foreign key')
+
+        expect { importer.execute }.not_to raise_error
+      end
+    end
+
+    it 'produces a valid Note' do
+      issue_row = create(:issue, project: project, iid: 1)
+
+      allow(importer)
+        .to receive(:find_noteable_id)
+        .and_return(issue_row.id)
+
+      allow(importer.user_finder)
+        .to receive(:author_id_for)
+        .with(github_note)
+        .and_return([user.id, true])
+
+      importer.execute
+
+      expect(project.notes.take).to be_valid
+    end
+  end
+
+  describe '#find_noteable_id' do
+    it 'returns the ID of the noteable' do
+      expect_any_instance_of(Gitlab::GithubImport::IssuableFinder)
+        .to receive(:database_id)
+        .and_return(10)
+
+      expect(importer.find_noteable_id).to eq(10)
+    end
+  end
+end
diff --git a/spec/lib/gitlab/github_import/importer/notes_importer_spec.rb b/spec/lib/gitlab/github_import/importer/notes_importer_spec.rb
new file mode 100644
index 00000000000..f046d13f879
--- /dev/null
+++ b/spec/lib/gitlab/github_import/importer/notes_importer_spec.rb
@@ -0,0 +1,116 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::Importer::NotesImporter do
+  let(:project) { double(:project, id: 4, import_source: 'foo/bar') }
+  let(:client) { double(:client) }
+
+  let(:github_comment) do
+    double(
+      :response,
+      html_url: 'https://github.com/foo/bar/issues/42',
+      user: double(:user, id: 4, login: 'alice'),
+      body: 'Hello world',
+      created_at: Time.zone.now,
+      updated_at: Time.zone.now,
+      id: 1
+    )
+  end
+
+  describe '#parallel?' do
+    it 'returns true when running in parallel mode' do
+      importer = described_class.new(project, client)
+      expect(importer).to be_parallel
+    end
+
+    it 'returns false when running in sequential mode' do
+      importer = described_class.new(project, client, parallel: false)
+      expect(importer).not_to be_parallel
+    end
+  end
+
+  describe '#execute' do
+    context 'when running in parallel mode' do
+      it 'imports notes in parallel' do
+        importer = described_class.new(project, client)
+
+        expect(importer).to receive(:parallel_import)
+
+        importer.execute
+      end
+    end
+
+    context 'when running in sequential mode' do
+      it 'imports notes in sequence' do
+        importer = described_class.new(project, client, parallel: false)
+
+        expect(importer).to receive(:sequential_import)
+
+        importer.execute
+      end
+    end
+  end
+
+  describe '#sequential_import' do
+    it 'imports each note in sequence' do
+      importer = described_class.new(project, client, parallel: false)
+      note_importer = double(:note_importer)
+
+      allow(importer)
+        .to receive(:each_object_to_import)
+        .and_yield(github_comment)
+
+      expect(Gitlab::GithubImport::Importer::NoteImporter)
+        .to receive(:new)
+        .with(
+          an_instance_of(Gitlab::GithubImport::Representation::Note),
+          project,
+          client
+        )
+        .and_return(note_importer)
+
+      expect(note_importer).to receive(:execute)
+
+      importer.sequential_import
+    end
+  end
+
+  describe '#parallel_import' do
+    it 'imports each note in parallel' do
+      importer = described_class.new(project, client)
+
+      allow(importer)
+        .to receive(:each_object_to_import)
+        .and_yield(github_comment)
+
+      expect(Gitlab::GithubImport::ImportNoteWorker)
+        .to receive(:perform_async)
+        .with(project.id, an_instance_of(Hash), an_instance_of(String))
+
+      waiter = importer.parallel_import
+
+      expect(waiter).to be_an_instance_of(Gitlab::JobWaiter)
+      expect(waiter.jobs_remaining).to eq(1)
+    end
+  end
+
+  describe '#id_for_already_imported_cache' do
+    it 'returns the ID of the given note' do
+      importer = described_class.new(project, client)
+
+      expect(importer.id_for_already_imported_cache(github_comment))
+        .to eq(1)
+    end
+  end
+
+  describe '#collection_options' do
+    it 'returns an empty Hash' do
+      # For large projects (e.g. kubernetes/kubernetes) GitHub's API may produce
+      # HTTP 500 errors when using explicit sorting options, regardless of what
+      # order you sort in. Not using any sorting options at all allows us to
+      # work around this.
+      importer = described_class.new(project, client)
+
+      expect(importer.collection_options).to eq({})
+    end
+  end
+end
diff --git a/spec/lib/gitlab/github_import/importer/pull_request_importer_spec.rb b/spec/lib/gitlab/github_import/importer/pull_request_importer_spec.rb
new file mode 100644
index 00000000000..35f3fdf8304
--- /dev/null
+++ b/spec/lib/gitlab/github_import/importer/pull_request_importer_spec.rb
@@ -0,0 +1,221 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::Importer::PullRequestImporter, :clean_gitlab_redis_cache do
+  let(:project) { create(:project, :repository) }
+  let(:client) { double(:client) }
+  let(:user) { create(:user) }
+  let(:created_at) { Time.new(2017, 1, 1, 12, 00) }
+  let(:updated_at) { Time.new(2017, 1, 1, 12, 15) }
+  let(:merged_at) { Time.new(2017, 1, 1, 12, 17) }
+
+  let(:source_commit) { project.repository.commit('feature') }
+  let(:target_commit) { project.repository.commit('master') }
+  let(:milestone) { create(:milestone, project: project) }
+
+  let(:pull_request) do
+    alice = Gitlab::GithubImport::Representation::User.new(id: 4, login: 'alice')
+
+    Gitlab::GithubImport::Representation::PullRequest.new(
+      iid: 42,
+      title: 'My Pull Request',
+      description: 'This is my pull request',
+      source_branch: 'feature',
+      source_branch_sha: source_commit.id,
+      target_branch: 'master',
+      target_branch_sha: target_commit.id,
+      source_repository_id: 400,
+      target_repository_id: 200,
+      source_repository_owner: 'alice',
+      state: :closed,
+      milestone_number: milestone.iid,
+      author: alice,
+      assignee: alice,
+      created_at: created_at,
+      updated_at: updated_at,
+      merged_at: merged_at
+    )
+  end
+
+  let(:importer) { described_class.new(pull_request, project, client) }
+
+  describe '#execute' do
+    it 'imports the pull request' do
+      expect(importer)
+        .to receive(:create_merge_request)
+        .and_return(10)
+
+      expect_any_instance_of(Gitlab::GithubImport::IssuableFinder)
+        .to receive(:cache_database_id)
+        .with(10)
+
+      importer.execute
+    end
+  end
+
+  describe '#create_merge_request' do
+    before do
+      allow(importer.milestone_finder)
+        .to receive(:id_for)
+        .with(pull_request)
+        .and_return(milestone.id)
+    end
+
+    context 'when the author could be found' do
+      before do
+        allow(importer.user_finder)
+          .to receive(:author_id_for)
+          .with(pull_request)
+          .and_return([user.id, true])
+
+        allow(importer.user_finder)
+          .to receive(:assignee_id_for)
+          .with(pull_request)
+          .and_return(user.id)
+      end
+
+      it 'imports the pull request with the pull request author as the merge request author' do
+        expect(Gitlab::GithubImport)
+          .to receive(:insert_and_return_id)
+          .with(
+            {
+              iid: 42,
+              title: 'My Pull Request',
+              description: 'This is my pull request',
+              source_project_id: project.id,
+              target_project_id: project.id,
+              source_branch: 'alice:feature',
+              target_branch: 'master',
+              state: :merged,
+              milestone_id: milestone.id,
+              author_id: user.id,
+              assignee_id: user.id,
+              created_at: created_at,
+              updated_at: updated_at
+            },
+            project.merge_requests
+          )
+          .and_call_original
+
+        importer.create_merge_request
+      end
+
+      it 'returns the ID of the created merge request' do
+        id = importer.create_merge_request
+
+        expect(id).to be_a_kind_of(Numeric)
+      end
+
+      it 'creates the merge request diffs' do
+        importer.create_merge_request
+
+        mr = project.merge_requests.take
+
+        expect(mr.merge_request_diffs.exists?).to eq(true)
+      end
+    end
+
+    context 'when the author could not be found' do
+      it 'imports the pull request with the project creator as the merge request author' do
+        allow(importer.user_finder)
+          .to receive(:author_id_for)
+          .with(pull_request)
+          .and_return([project.creator_id, false])
+
+        allow(importer.user_finder)
+          .to receive(:assignee_id_for)
+          .with(pull_request)
+          .and_return(user.id)
+
+        expect(Gitlab::GithubImport)
+          .to receive(:insert_and_return_id)
+          .with(
+            {
+              iid: 42,
+              title: 'My Pull Request',
+              description: "*Created by: alice*\n\nThis is my pull request",
+              source_project_id: project.id,
+              target_project_id: project.id,
+              source_branch: 'alice:feature',
+              target_branch: 'master',
+              state: :merged,
+              milestone_id: milestone.id,
+              author_id: project.creator_id,
+              assignee_id: user.id,
+              created_at: created_at,
+              updated_at: updated_at
+            },
+            project.merge_requests
+          )
+          .and_call_original
+
+        importer.create_merge_request
+      end
+    end
+
+    context 'when the source and target branch are identical' do
+      it 'uses a generated source branch name for the merge request' do
+        allow(importer.user_finder)
+          .to receive(:author_id_for)
+          .with(pull_request)
+          .and_return([user.id, true])
+
+        allow(importer.user_finder)
+          .to receive(:assignee_id_for)
+          .with(pull_request)
+          .and_return(user.id)
+
+        allow(pull_request)
+          .to receive(:source_repository_id)
+          .and_return(pull_request.target_repository_id)
+
+        allow(pull_request)
+          .to receive(:source_branch)
+          .and_return('master')
+
+        expect(Gitlab::GithubImport)
+          .to receive(:insert_and_return_id)
+          .with(
+            {
+              iid: 42,
+              title: 'My Pull Request',
+              description: 'This is my pull request',
+              source_project_id: project.id,
+              target_project_id: project.id,
+              source_branch: 'master-42',
+              target_branch: 'master',
+              state: :merged,
+              milestone_id: milestone.id,
+              author_id: user.id,
+              assignee_id: user.id,
+              created_at: created_at,
+              updated_at: updated_at
+            },
+            project.merge_requests
+          )
+          .and_call_original
+
+        importer.create_merge_request
+      end
+    end
+
+    context 'when the import fails due to a foreign key error' do
+      it 'does not raise any errors' do
+        allow(importer.user_finder)
+          .to receive(:author_id_for)
+          .with(pull_request)
+          .and_return([user.id, true])
+
+        allow(importer.user_finder)
+          .to receive(:assignee_id_for)
+          .with(pull_request)
+          .and_return(user.id)
+
+        expect(Gitlab::GithubImport)
+          .to receive(:insert_and_return_id)
+          .and_raise(ActiveRecord::InvalidForeignKey, 'invalid foreign key')
+
+        expect { importer.create_merge_request }.not_to raise_error
+      end
+    end
+  end
+end
diff --git a/spec/lib/gitlab/github_import/importer/pull_requests_importer_spec.rb b/spec/lib/gitlab/github_import/importer/pull_requests_importer_spec.rb
new file mode 100644
index 00000000000..d72572cd510
--- /dev/null
+++ b/spec/lib/gitlab/github_import/importer/pull_requests_importer_spec.rb
@@ -0,0 +1,272 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::Importer::PullRequestsImporter do
+  let(:project) { create(:project, import_source: 'foo/bar') }
+  let(:client) { double(:client) }
+
+  let(:pull_request) do
+    double(
+      :response,
+      number: 42,
+      title: 'My Pull Request',
+      body: 'This is my pull request',
+      state: 'closed',
+      head: double(
+        :head,
+        sha: '123abc',
+        ref: 'my-feature',
+        repo: double(:repo, id: 400),
+        user: double(:user, id: 4, login: 'alice')
+      ),
+      base: double(
+        :base,
+        sha: '456def',
+        ref: 'master',
+        repo: double(:repo, id: 200)
+      ),
+      milestone: double(:milestone, number: 4),
+      user: double(:user, id: 4, login: 'alice'),
+      assignee: double(:user, id: 4, login: 'alice'),
+      created_at: Time.zone.now,
+      updated_at: Time.zone.now,
+      merged_at: Time.zone.now
+    )
+  end
+
+  describe '#parallel?' do
+    it 'returns true when running in parallel mode' do
+      importer = described_class.new(project, client)
+      expect(importer).to be_parallel
+    end
+
+    it 'returns false when running in sequential mode' do
+      importer = described_class.new(project, client, parallel: false)
+      expect(importer).not_to be_parallel
+    end
+  end
+
+  describe '#execute' do
+    context 'when running in parallel mode' do
+      it 'imports pull requests in parallel' do
+        importer = described_class.new(project, client)
+
+        expect(importer).to receive(:parallel_import)
+
+        importer.execute
+      end
+    end
+
+    context 'when running in sequential mode' do
+      it 'imports pull requests in sequence' do
+        importer = described_class.new(project, client, parallel: false)
+
+        expect(importer).to receive(:sequential_import)
+
+        importer.execute
+      end
+    end
+  end
+
+  describe '#sequential_import' do
+    it 'imports each pull request in sequence' do
+      importer = described_class.new(project, client, parallel: false)
+      pull_request_importer = double(:pull_request_importer)
+
+      allow(importer)
+        .to receive(:each_object_to_import)
+        .and_yield(pull_request)
+
+      expect(Gitlab::GithubImport::Importer::PullRequestImporter)
+        .to receive(:new)
+        .with(
+          an_instance_of(Gitlab::GithubImport::Representation::PullRequest),
+          project,
+          client
+        )
+        .and_return(pull_request_importer)
+
+      expect(pull_request_importer).to receive(:execute)
+
+      importer.sequential_import
+    end
+  end
+
+  describe '#parallel_import' do
+    it 'imports each note in parallel' do
+      importer = described_class.new(project, client)
+
+      allow(importer)
+        .to receive(:each_object_to_import)
+        .and_yield(pull_request)
+
+      expect(Gitlab::GithubImport::ImportPullRequestWorker)
+        .to receive(:perform_async)
+        .with(project.id, an_instance_of(Hash), an_instance_of(String))
+
+      waiter = importer.parallel_import
+
+      expect(waiter).to be_an_instance_of(Gitlab::JobWaiter)
+      expect(waiter.jobs_remaining).to eq(1)
+    end
+  end
+
+  describe '#each_object_to_import', :clean_gitlab_redis_cache do
+    let(:importer) { described_class.new(project, client) }
+
+    before do
+      page = double(:page, objects: [pull_request], number: 1)
+
+      expect(client)
+        .to receive(:each_page)
+        .with(
+          :pull_requests,
+          'foo/bar',
+          { state: 'all', sort: 'created', direction: 'asc', page: 1 }
+        )
+        .and_yield(page)
+    end
+
+    it 'yields every pull request to the supplied block' do
+      expect { |b| importer.each_object_to_import(&b) }
+        .to yield_with_args(pull_request)
+    end
+
+    it 'updates the repository if a pull request was updated after the last clone' do
+      expect(importer)
+        .to receive(:update_repository?)
+        .with(pull_request)
+        .and_return(true)
+
+      expect(importer)
+        .to receive(:update_repository)
+
+      importer.each_object_to_import { }
+    end
+  end
+
+  describe '#update_repository' do
+    it 'updates the repository' do
+      importer = described_class.new(project, client)
+
+      expect(project.repository)
+        .to receive(:fetch_remote)
+        .with('github', forced: false)
+
+      expect(Rails.logger)
+        .to receive(:info)
+        .with(an_instance_of(String))
+
+      expect(importer.repository_updates_counter)
+        .to receive(:increment)
+        .with(project: project.path_with_namespace)
+        .and_call_original
+
+      Timecop.freeze do
+        importer.update_repository
+
+        expect(project.last_repository_updated_at).to eq(Time.zone.now)
+      end
+    end
+  end
+
+  describe '#update_repository?' do
+    let(:importer) { described_class.new(project, client) }
+
+    context 'when the pull request was updated after the last update' do
+      let(:pr) do
+        double(
+          :pr,
+          updated_at: Time.zone.now,
+          head: double(:head, sha: '123'),
+          base: double(:base, sha: '456')
+        )
+      end
+
+      before do
+        allow(project)
+          .to receive(:last_repository_updated_at)
+          .and_return(1.year.ago)
+      end
+
+      it 'returns true when the head SHA is not present' do
+        expect(importer)
+          .to receive(:commit_exists?)
+          .with(pr.head.sha)
+          .and_return(false)
+
+        expect(importer.update_repository?(pr)).to eq(true)
+      end
+
+      it 'returns true when the base SHA is not present' do
+        expect(importer)
+          .to receive(:commit_exists?)
+          .with(pr.head.sha)
+          .and_return(true)
+
+        expect(importer)
+          .to receive(:commit_exists?)
+          .with(pr.base.sha)
+          .and_return(false)
+
+        expect(importer.update_repository?(pr)).to eq(true)
+      end
+
+      it 'returns false if both the head and base SHAs are present' do
+        expect(importer)
+          .to receive(:commit_exists?)
+          .with(pr.head.sha)
+          .and_return(true)
+
+        expect(importer)
+          .to receive(:commit_exists?)
+          .with(pr.base.sha)
+          .and_return(true)
+
+        expect(importer.update_repository?(pr)).to eq(false)
+      end
+    end
+
+    context 'when the pull request was updated before the last update' do
+      it 'returns false' do
+        pr = double(:pr, updated_at: 1.year.ago)
+
+        allow(project)
+          .to receive(:last_repository_updated_at)
+          .and_return(Time.zone.now)
+
+        expect(importer.update_repository?(pr)).to eq(false)
+      end
+    end
+  end
+
+  describe '#commit_exists?' do
+    let(:importer) { described_class.new(project, client) }
+
+    it 'returns true when a commit exists' do
+      expect(project.repository)
+        .to receive(:lookup)
+        .with('123')
+        .and_return(double(:commit))
+
+      expect(importer.commit_exists?('123')).to eq(true)
+    end
+
+    it 'returns false when a commit does not exist' do
+      expect(project.repository)
+        .to receive(:lookup)
+        .with('123')
+        .and_raise(Rugged::OdbError)
+
+      expect(importer.commit_exists?('123')).to eq(false)
+    end
+  end
+
+  describe '#id_for_already_imported_cache' do
+    it 'returns the PR number of the given PR' do
+      importer = described_class.new(project, client)
+
+      expect(importer.id_for_already_imported_cache(pull_request))
+        .to eq(42)
+    end
+  end
+end
diff --git a/spec/lib/gitlab/github_import/importer/releases_importer_spec.rb b/spec/lib/gitlab/github_import/importer/releases_importer_spec.rb
new file mode 100644
index 00000000000..23ae026fb14
--- /dev/null
+++ b/spec/lib/gitlab/github_import/importer/releases_importer_spec.rb
@@ -0,0 +1,125 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::Importer::ReleasesImporter do
+  let(:project) { create(:project) }
+  let(:client) { double(:client) }
+  let(:importer) { described_class.new(project, client) }
+  let(:created_at) { Time.new(2017, 1, 1, 12, 00) }
+  let(:updated_at) { Time.new(2017, 1, 1, 12, 15) }
+
+  let(:release) do
+    double(
+      :release,
+      tag_name: '1.0',
+      body: 'This is my release',
+      created_at: created_at,
+      updated_at: updated_at
+    )
+  end
+
+  describe '#execute' do
+    it 'imports the releases in bulk' do
+      release_hash = {
+        tag_name: '1.0',
+        description: 'This is my release',
+        created_at: created_at,
+        updated_at: updated_at
+      }
+
+      expect(importer).to receive(:build_releases).and_return([release_hash])
+      expect(importer).to receive(:bulk_insert).with(Release, [release_hash])
+
+      importer.execute
+    end
+  end
+
+  describe '#build_releases' do
+    it 'returns an Array containnig release rows' do
+      expect(importer).to receive(:each_release).and_return([release])
+
+      rows = importer.build_releases
+
+      expect(rows.length).to eq(1)
+      expect(rows[0][:tag]).to eq('1.0')
+    end
+
+    it 'does not create releases that already exist' do
+      create(:release, project: project, tag: '1.0', description: '1.0')
+
+      expect(importer).to receive(:each_release).and_return([release])
+      expect(importer.build_releases).to be_empty
+    end
+
+    it 'uses a default release description if none is provided' do
+      expect(release).to receive(:body).and_return('')
+      expect(importer).to receive(:each_release).and_return([release])
+
+      release = importer.build_releases.first
+
+      expect(release[:description]).to eq('Release for tag 1.0')
+    end
+  end
+
+  describe '#build' do
+    let(:release_hash) { importer.build(release) }
+
+    it 'returns the attributes of the release as a Hash' do
+      expect(release_hash).to be_an_instance_of(Hash)
+    end
+
+    context 'the returned Hash' do
+      it 'includes the tag name' do
+        expect(release_hash[:tag]).to eq('1.0')
+      end
+
+      it 'includes the release description' do
+        expect(release_hash[:description]).to eq('This is my release')
+      end
+
+      it 'includes the project ID' do
+        expect(release_hash[:project_id]).to eq(project.id)
+      end
+
+      it 'includes the created timestamp' do
+        expect(release_hash[:created_at]).to eq(created_at)
+      end
+
+      it 'includes the updated timestamp' do
+        expect(release_hash[:updated_at]).to eq(updated_at)
+      end
+    end
+  end
+
+  describe '#each_release' do
+    let(:release) { double(:release) }
+
+    before do
+      allow(project).to receive(:import_source).and_return('foo/bar')
+
+      allow(client)
+        .to receive(:releases)
+        .with('foo/bar')
+        .and_return([release].to_enum)
+    end
+
+    it 'returns an Enumerator' do
+      expect(importer.each_release).to be_an_instance_of(Enumerator)
+    end
+
+    it 'yields every release to the Enumerator' do
+      expect(importer.each_release.next).to eq(release)
+    end
+  end
+
+  describe '#description_for' do
+    it 'returns the description when present' do
+      expect(importer.description_for(release)).to eq(release.body)
+    end
+
+    it 'returns a generated description when one is not present' do
+      allow(release).to receive(:body).and_return('')
+
+      expect(importer.description_for(release)).to eq('Release for tag 1.0')
+    end
+  end
+end
diff --git a/spec/lib/gitlab/github_import/importer/repository_importer_spec.rb b/spec/lib/gitlab/github_import/importer/repository_importer_spec.rb
new file mode 100644
index 00000000000..80539807711
--- /dev/null
+++ b/spec/lib/gitlab/github_import/importer/repository_importer_spec.rb
@@ -0,0 +1,264 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::Importer::RepositoryImporter do
+  let(:repository) { double(:repository) }
+  let(:client) { double(:client) }
+
+  let(:project) do
+    double(
+      :project,
+      import_url: 'foo.git',
+      import_source: 'foo/bar',
+      repository_storage_path: 'foo',
+      disk_path: 'foo',
+      repository: repository
+    )
+  end
+
+  let(:importer) { described_class.new(project, client) }
+  let(:shell_adapter) { Gitlab::Shell.new }
+
+  before do
+    # The method "gitlab_shell" returns a new instance every call, making
+    # it harder to set expectations. To work around this we'll stub the method
+    # and return the same instance on every call.
+    allow(importer).to receive(:gitlab_shell).and_return(shell_adapter)
+  end
+
+  describe '#import_wiki?' do
+    it 'returns true if the wiki should be imported' do
+      repo = double(:repo, has_wiki: true)
+
+      expect(client)
+        .to receive(:repository)
+        .with('foo/bar')
+        .and_return(repo)
+
+      expect(project)
+        .to receive(:wiki_repository_exists?)
+        .and_return(false)
+
+      expect(importer.import_wiki?).to eq(true)
+    end
+
+    it 'returns false if the GitHub wiki is disabled' do
+      repo = double(:repo, has_wiki: false)
+
+      expect(client)
+        .to receive(:repository)
+        .with('foo/bar')
+        .and_return(repo)
+
+      expect(importer.import_wiki?).to eq(false)
+    end
+
+    it 'returns false if the wiki has already been imported' do
+      repo = double(:repo, has_wiki: true)
+
+      expect(client)
+        .to receive(:repository)
+        .with('foo/bar')
+        .and_return(repo)
+
+      expect(project)
+        .to receive(:wiki_repository_exists?)
+        .and_return(true)
+
+      expect(importer.import_wiki?).to eq(false)
+    end
+  end
+
+  describe '#execute' do
+    it 'imports the repository and wiki' do
+      expect(repository)
+        .to receive(:empty_repo?)
+        .and_return(true)
+
+      expect(importer)
+        .to receive(:import_wiki?)
+        .and_return(true)
+
+      expect(importer)
+        .to receive(:import_repository)
+        .and_return(true)
+
+      expect(importer)
+        .to receive(:import_wiki_repository)
+        .and_return(true)
+
+      expect(importer)
+        .to receive(:update_clone_time)
+
+      expect(importer.execute).to eq(true)
+    end
+
+    it 'does not import the repository if it already exists' do
+      expect(repository)
+        .to receive(:empty_repo?)
+        .and_return(false)
+
+      expect(importer)
+        .to receive(:import_wiki?)
+        .and_return(true)
+
+      expect(importer)
+        .not_to receive(:import_repository)
+
+      expect(importer)
+        .to receive(:import_wiki_repository)
+        .and_return(true)
+
+      expect(importer)
+        .to receive(:update_clone_time)
+
+      expect(importer.execute).to eq(true)
+    end
+
+    it 'does not import the wiki if it is disabled' do
+      expect(repository)
+        .to receive(:empty_repo?)
+        .and_return(true)
+
+      expect(importer)
+        .to receive(:import_wiki?)
+        .and_return(false)
+
+      expect(importer)
+        .to receive(:import_repository)
+        .and_return(true)
+
+      expect(importer)
+        .to receive(:update_clone_time)
+
+      expect(importer)
+        .not_to receive(:import_wiki_repository)
+
+      expect(importer.execute).to eq(true)
+    end
+
+    it 'does not import the wiki if the repository could not be imported' do
+      expect(repository)
+        .to receive(:empty_repo?)
+        .and_return(true)
+
+      expect(importer)
+        .to receive(:import_wiki?)
+        .and_return(true)
+
+      expect(importer)
+        .to receive(:import_repository)
+        .and_return(false)
+
+      expect(importer)
+        .not_to receive(:update_clone_time)
+
+      expect(importer)
+        .not_to receive(:import_wiki_repository)
+
+      expect(importer.execute).to eq(false)
+    end
+  end
+
+  describe '#import_repository' do
+    it 'imports the repository' do
+      expect(project)
+        .to receive(:ensure_repository)
+
+      expect(importer)
+        .to receive(:configure_repository_remote)
+
+      expect(repository)
+        .to receive(:fetch_remote)
+        .with('github', forced: true)
+
+      expect(importer.import_repository).to eq(true)
+    end
+
+    it 'marks the import as failed when an error was raised' do
+      expect(project).to receive(:ensure_repository)
+        .and_raise(Gitlab::Git::Repository::NoRepository)
+
+      expect(importer)
+        .to receive(:fail_import)
+        .and_return(false)
+
+      expect(importer.import_repository).to eq(false)
+    end
+  end
+
+  describe '#configure_repository_remote' do
+    it 'configures the remote details' do
+      expect(repository)
+        .to receive(:remote_exists?)
+        .with('github')
+        .and_return(false)
+
+      expect(repository)
+        .to receive(:add_remote)
+        .with('github', 'foo.git')
+
+      expect(repository)
+        .to receive(:set_import_remote_as_mirror)
+        .with('github')
+
+      expect(repository)
+        .to receive(:add_remote_fetch_config)
+
+      importer.configure_repository_remote
+    end
+
+    it 'does not configure the remote if already configured' do
+      expect(repository)
+        .to receive(:remote_exists?)
+        .with('github')
+        .and_return(true)
+
+      expect(repository)
+        .not_to receive(:add_remote)
+
+      importer.configure_repository_remote
+    end
+  end
+
+  describe '#import_wiki_repository' do
+    it 'imports the wiki repository' do
+      expect(importer.gitlab_shell)
+        .to receive(:import_repository)
+        .with('foo', 'foo.wiki', 'foo.wiki.git')
+
+      expect(importer.import_wiki_repository).to eq(true)
+    end
+
+    it 'marks the import as failed if an error was raised' do
+      expect(importer.gitlab_shell)
+        .to receive(:import_repository)
+        .and_raise(Gitlab::Shell::Error)
+
+      expect(importer)
+        .to receive(:fail_import)
+        .and_return(false)
+
+      expect(importer.import_wiki_repository).to eq(false)
+    end
+  end
+
+  describe '#fail_import' do
+    it 'marks the import as failed' do
+      expect(project).to receive(:mark_import_as_failed).with('foo')
+
+      expect(importer.fail_import('foo')).to eq(false)
+    end
+  end
+
+  describe '#update_clone_time' do
+    it 'sets the timestamp for when the cloning process finished' do
+      Timecop.freeze do
+        expect(project)
+          .to receive(:update_column)
+          .with(:last_repository_updated_at, Time.zone.now)
+
+        importer.update_clone_time
+      end
+    end
+  end
+end
diff --git a/spec/lib/gitlab/github_import/issuable_finder_spec.rb b/spec/lib/gitlab/github_import/issuable_finder_spec.rb
new file mode 100644
index 00000000000..da69911812a
--- /dev/null
+++ b/spec/lib/gitlab/github_import/issuable_finder_spec.rb
@@ -0,0 +1,38 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::IssuableFinder, :clean_gitlab_redis_cache do
+  let(:project) { double(:project, id: 4) }
+  let(:issue) do
+    double(:issue, issuable_type: MergeRequest, iid: 1)
+  end
+
+  let(:finder) { described_class.new(project, issue) }
+
+  describe '#database_id' do
+    it 'returns nil when no cache is in place' do
+      expect(finder.database_id).to be_nil
+    end
+
+    it 'returns the ID of an issuable when the cache is in place' do
+      finder.cache_database_id(10)
+
+      expect(finder.database_id).to eq(10)
+    end
+
+    it 'raises TypeError when the object is not supported' do
+      finder = described_class.new(project, double(:issue))
+
+      expect { finder.database_id }.to raise_error(TypeError)
+    end
+  end
+
+  describe '#cache_database_id' do
+    it 'caches the ID of a database row' do
+      expect(Gitlab::GithubImport::Caching)
+        .to receive(:write)
+        .with('github-import/issuable-finder/4/MergeRequest/1', 10)
+
+      finder.cache_database_id(10)
+    end
+  end
+end
diff --git a/spec/lib/gitlab/github_import/label_finder_spec.rb b/spec/lib/gitlab/github_import/label_finder_spec.rb
new file mode 100644
index 00000000000..8ba766944d6
--- /dev/null
+++ b/spec/lib/gitlab/github_import/label_finder_spec.rb
@@ -0,0 +1,61 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::LabelFinder, :clean_gitlab_redis_cache do
+  let(:project) { create(:project) }
+  let(:finder) { described_class.new(project) }
+  let!(:bug) { create(:label, project: project, name: 'Bug') }
+  let!(:feature) { create(:label, project: project, name: 'Feature') }
+
+  describe '#id_for' do
+    context 'with a cache in place' do
+      before do
+        finder.build_cache
+      end
+
+      it 'returns the ID of the given label' do
+        expect(finder.id_for(feature.name)).to eq(feature.id)
+      end
+
+      it 'returns nil for an empty cache key' do
+        key = finder.cache_key_for(bug.name)
+
+        Gitlab::GithubImport::Caching.write(key, '')
+
+        expect(finder.id_for(bug.name)).to be_nil
+      end
+
+      it 'returns nil for a non existing label name' do
+        expect(finder.id_for('kittens')).to be_nil
+      end
+    end
+
+    context 'without a cache in place' do
+      it 'returns nil for a label' do
+        expect(finder.id_for(feature.name)).to be_nil
+      end
+    end
+  end
+
+  describe '#build_cache' do
+    it 'builds the cache of all project labels' do
+      expect(Gitlab::GithubImport::Caching)
+        .to receive(:write_multiple)
+        .with(
+          {
+            "github-import/label-finder/#{project.id}/Bug" => bug.id,
+            "github-import/label-finder/#{project.id}/Feature" => feature.id
+          }
+        )
+        .and_call_original
+
+      finder.build_cache
+    end
+  end
+
+  describe '#cache_key_for' do
+    it 'returns the cache key for a label name' do
+      expect(finder.cache_key_for('foo'))
+        .to eq("github-import/label-finder/#{project.id}/foo")
+    end
+  end
+end
diff --git a/spec/lib/gitlab/github_import/markdown_text_spec.rb b/spec/lib/gitlab/github_import/markdown_text_spec.rb
new file mode 100644
index 00000000000..1ff5b9d66b3
--- /dev/null
+++ b/spec/lib/gitlab/github_import/markdown_text_spec.rb
@@ -0,0 +1,28 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::MarkdownText do
+  describe '.format' do
+    it 'formats the text' do
+      author = double(:author, login: 'Alice')
+      text = described_class.format('Hello', author)
+
+      expect(text).to eq("*Created by: Alice*\n\nHello")
+    end
+  end
+
+  describe '#to_s' do
+    it 'returns the text when the author was found' do
+      author = double(:author, login: 'Alice')
+      text = described_class.new('Hello', author, true)
+
+      expect(text.to_s).to eq('Hello')
+    end
+
+    it 'returns the text with an extra header when the author was not found' do
+      author = double(:author, login: 'Alice')
+      text = described_class.new('Hello', author)
+
+      expect(text.to_s).to eq("*Created by: Alice*\n\nHello")
+    end
+  end
+end
diff --git a/spec/lib/gitlab/github_import/milestone_finder_spec.rb b/spec/lib/gitlab/github_import/milestone_finder_spec.rb
new file mode 100644
index 00000000000..dff931a2fe8
--- /dev/null
+++ b/spec/lib/gitlab/github_import/milestone_finder_spec.rb
@@ -0,0 +1,57 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::MilestoneFinder, :clean_gitlab_redis_cache do
+  let!(:project) { create(:project) }
+  let!(:milestone) { create(:milestone, project: project) }
+  let(:finder) { described_class.new(project) }
+
+  describe '#id_for' do
+    let(:issuable) { double(:issuable, milestone_number: milestone.iid) }
+
+    context 'with a cache in place' do
+      before do
+        finder.build_cache
+      end
+
+      it 'returns the milestone ID of the given issuable' do
+        expect(finder.id_for(issuable)).to eq(milestone.id)
+      end
+
+      it 'returns nil for an empty cache key' do
+        key = finder.cache_key_for(milestone.iid)
+
+        Gitlab::GithubImport::Caching.write(key, '')
+
+        expect(finder.id_for(issuable)).to be_nil
+      end
+
+      it 'returns nil for an issuable with a non-existing milestone' do
+        expect(finder.id_for(double(:issuable, milestone_number: 5))).to be_nil
+      end
+    end
+
+    context 'without a cache in place' do
+      it 'returns nil' do
+        expect(finder.id_for(issuable)).to be_nil
+      end
+    end
+  end
+
+  describe '#build_cache' do
+    it 'builds the cache of all project milestones' do
+      expect(Gitlab::GithubImport::Caching)
+        .to receive(:write_multiple)
+        .with("github-import/milestone-finder/#{project.id}/1" => milestone.id)
+        .and_call_original
+
+      finder.build_cache
+    end
+  end
+
+  describe '#cache_key_for' do
+    it 'returns the cache key for an IID' do
+      expect(finder.cache_key_for(10))
+        .to eq("github-import/milestone-finder/#{project.id}/10")
+    end
+  end
+end
diff --git a/spec/lib/gitlab/github_import/page_counter_spec.rb b/spec/lib/gitlab/github_import/page_counter_spec.rb
new file mode 100644
index 00000000000..c2613a9a415
--- /dev/null
+++ b/spec/lib/gitlab/github_import/page_counter_spec.rb
@@ -0,0 +1,32 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::PageCounter, :clean_gitlab_redis_cache do
+  let(:project) { double(:project, id: 1) }
+  let(:counter) { described_class.new(project, :issues) }
+
+  describe '#initialize' do
+    it 'sets the initial page number to 1 when no value is cached' do
+      expect(counter.current).to eq(1)
+    end
+
+    it 'sets the initial page number to the cached value when one is present' do
+      Gitlab::GithubImport::Caching.write(counter.cache_key, 2)
+
+      expect(described_class.new(project, :issues).current).to eq(2)
+    end
+  end
+
+  describe '#set' do
+    it 'overwrites the page number when the given number is greater than the current number' do
+      counter.set(4)
+      expect(counter.current).to eq(4)
+    end
+
+    it 'does not overwrite the page number when the given number is lower than the current number' do
+      counter.set(2)
+      counter.set(1)
+
+      expect(counter.current).to eq(2)
+    end
+  end
+end
diff --git a/spec/lib/gitlab/github_import/parallel_importer_spec.rb b/spec/lib/gitlab/github_import/parallel_importer_spec.rb
new file mode 100644
index 00000000000..e2a821d4d5c
--- /dev/null
+++ b/spec/lib/gitlab/github_import/parallel_importer_spec.rb
@@ -0,0 +1,40 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::ParallelImporter do
+  describe '.async?' do
+    it 'returns true' do
+      expect(described_class).to be_async
+    end
+  end
+
+  describe '#execute', :clean_gitlab_redis_shared_state do
+    let(:project) { create(:project) }
+    let(:importer) { described_class.new(project) }
+
+    before do
+      expect(Gitlab::GithubImport::Stage::ImportRepositoryWorker)
+        .to receive(:perform_async)
+        .with(project.id)
+        .and_return('123')
+    end
+
+    it 'schedules the importing of the repository' do
+      expect(importer.execute).to eq(true)
+    end
+
+    it 'sets the JID in Redis' do
+      expect(Gitlab::SidekiqStatus)
+        .to receive(:set)
+        .with("github-importer/#{project.id}", StuckImportJobsWorker::IMPORT_JOBS_EXPIRATION)
+        .and_call_original
+
+      importer.execute
+    end
+
+    it 'updates the import JID of the project' do
+      importer.execute
+
+      expect(project.import_jid).to eq("github-importer/#{project.id}")
+    end
+  end
+end
diff --git a/spec/lib/gitlab/github_import/parallel_scheduling_spec.rb b/spec/lib/gitlab/github_import/parallel_scheduling_spec.rb
new file mode 100644
index 00000000000..98205d3ee25
--- /dev/null
+++ b/spec/lib/gitlab/github_import/parallel_scheduling_spec.rb
@@ -0,0 +1,296 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::ParallelScheduling do
+  let(:importer_class) do
+    Class.new do
+      include(Gitlab::GithubImport::ParallelScheduling)
+
+      def collection_method
+        :issues
+      end
+    end
+  end
+
+  let(:project) { double(:project, id: 4, import_source: 'foo/bar') }
+  let(:client) { double(:client) }
+
+  describe '#parallel?' do
+    it 'returns true when running in parallel mode' do
+      expect(importer_class.new(project, client)).to be_parallel
+    end
+
+    it 'returns false when running in sequential mode' do
+      importer = importer_class.new(project, client, parallel: false)
+
+      expect(importer).not_to be_parallel
+    end
+  end
+
+  describe '#execute' do
+    it 'imports data in parallel when running in parallel mode' do
+      importer = importer_class.new(project, client)
+      waiter = double(:waiter)
+
+      expect(importer)
+        .to receive(:parallel_import)
+        .and_return(waiter)
+
+      expect(importer.execute)
+        .to eq(waiter)
+    end
+
+    it 'imports data in parallel when running in sequential mode' do
+      importer = importer_class.new(project, client, parallel: false)
+
+      expect(importer)
+        .to receive(:sequential_import)
+        .and_return([])
+
+      expect(importer.execute)
+        .to eq([])
+    end
+
+    it 'expires the cache used for tracking already imported objects' do
+      importer = importer_class.new(project, client)
+
+      expect(importer).to receive(:parallel_import)
+
+      expect(Gitlab::GithubImport::Caching)
+        .to receive(:expire)
+        .with(importer.already_imported_cache_key, a_kind_of(Numeric))
+
+      importer.execute
+    end
+  end
+
+  describe '#sequential_import' do
+    let(:importer) { importer_class.new(project, client, parallel: false) }
+
+    it 'imports data in sequence' do
+      repr_class = double(:representation_class)
+      repr_instance = double(:representation_instance)
+      gh_importer = double(:github_importer)
+      gh_importer_instance = double(:github_importer_instance)
+      object = double(:object)
+
+      expect(importer)
+        .to receive(:each_object_to_import)
+        .and_yield(object)
+
+      expect(importer)
+        .to receive(:representation_class)
+        .and_return(repr_class)
+
+      expect(repr_class)
+        .to receive(:from_api_response)
+        .with(object)
+        .and_return(repr_instance)
+
+      expect(importer)
+        .to receive(:importer_class)
+        .and_return(gh_importer)
+
+      expect(gh_importer)
+        .to receive(:new)
+        .with(repr_instance, project, client)
+        .and_return(gh_importer_instance)
+
+      expect(gh_importer_instance)
+        .to receive(:execute)
+
+      importer.sequential_import
+    end
+  end
+
+  describe '#parallel_import' do
+    let(:importer) { importer_class.new(project, client) }
+
+    it 'imports data in parallel' do
+      repr_class = double(:representation)
+      worker_class = double(:worker)
+      object = double(:object)
+
+      expect(importer)
+        .to receive(:each_object_to_import)
+        .and_yield(object)
+
+      expect(importer)
+        .to receive(:representation_class)
+        .and_return(repr_class)
+
+      expect(importer)
+        .to receive(:sidekiq_worker_class)
+        .and_return(worker_class)
+
+      expect(repr_class)
+        .to receive(:from_api_response)
+        .with(object)
+        .and_return({ title: 'Foo' })
+
+      expect(worker_class)
+        .to receive(:perform_async)
+        .with(project.id, { title: 'Foo' }, an_instance_of(String))
+
+      expect(importer.parallel_import)
+        .to be_an_instance_of(Gitlab::JobWaiter)
+    end
+  end
+
+  describe '#each_object_to_import' do
+    let(:importer) { importer_class.new(project, client) }
+    let(:object) { double(:object) }
+
+    before do
+      expect(importer)
+        .to receive(:collection_options)
+        .and_return({ state: 'all' })
+    end
+
+    it 'yields every object to import' do
+      page = double(:page, objects: [object], number: 1)
+
+      expect(client)
+        .to receive(:each_page)
+        .with(:issues, 'foo/bar', { state: 'all', page: 1 })
+        .and_yield(page)
+
+      expect(importer.page_counter)
+        .to receive(:set)
+        .with(1)
+        .and_return(true)
+
+      expect(importer)
+        .to receive(:already_imported?)
+        .with(object)
+        .and_return(false)
+
+      expect(importer)
+        .to receive(:mark_as_imported)
+        .with(object)
+
+      expect { |b| importer.each_object_to_import(&b) }
+        .to yield_with_args(object)
+    end
+
+    it 'resumes from the last page' do
+      page = double(:page, objects: [object], number: 2)
+
+      expect(importer.page_counter)
+        .to receive(:current)
+        .and_return(2)
+
+      expect(client)
+        .to receive(:each_page)
+        .with(:issues, 'foo/bar', { state: 'all', page: 2 })
+        .and_yield(page)
+
+      expect(importer.page_counter)
+        .to receive(:set)
+        .with(2)
+        .and_return(true)
+
+      expect(importer)
+        .to receive(:already_imported?)
+        .with(object)
+        .and_return(false)
+
+      expect(importer)
+        .to receive(:mark_as_imported)
+        .with(object)
+
+      expect { |b| importer.each_object_to_import(&b) }
+        .to yield_with_args(object)
+    end
+
+    it 'does not yield any objects if the page number was not set' do
+      page = double(:page, objects: [object], number: 1)
+
+      expect(client)
+        .to receive(:each_page)
+        .with(:issues, 'foo/bar', { state: 'all', page: 1 })
+        .and_yield(page)
+
+      expect(importer.page_counter)
+        .to receive(:set)
+        .with(1)
+        .and_return(false)
+
+      expect { |b| importer.each_object_to_import(&b) }
+        .not_to yield_control
+    end
+
+    it 'does not yield the object if it was already imported' do
+      page = double(:page, objects: [object], number: 1)
+
+      expect(client)
+        .to receive(:each_page)
+        .with(:issues, 'foo/bar', { state: 'all', page: 1 })
+        .and_yield(page)
+
+      expect(importer.page_counter)
+        .to receive(:set)
+        .with(1)
+        .and_return(true)
+
+      expect(importer)
+        .to receive(:already_imported?)
+        .with(object)
+        .and_return(true)
+
+      expect(importer)
+        .not_to receive(:mark_as_imported)
+
+      expect { |b| importer.each_object_to_import(&b) }
+        .not_to yield_control
+    end
+  end
+
+  describe '#already_imported?', :clean_gitlab_redis_cache do
+    let(:importer) { importer_class.new(project, client) }
+
+    it 'returns false when an object has not yet been imported' do
+      object = double(:object, id: 10)
+
+      expect(importer)
+        .to receive(:id_for_already_imported_cache)
+        .with(object)
+        .and_return(object.id)
+
+      expect(importer.already_imported?(object))
+        .to eq(false)
+    end
+
+    it 'returns true when an object has already been imported' do
+      object = double(:object, id: 10)
+
+      allow(importer)
+        .to receive(:id_for_already_imported_cache)
+        .with(object)
+        .and_return(object.id)
+
+      importer.mark_as_imported(object)
+
+      expect(importer.already_imported?(object))
+        .to eq(true)
+    end
+  end
+
+  describe '#mark_as_imported', :clean_gitlab_redis_cache do
+    it 'marks an object as already imported' do
+      object = double(:object, id: 10)
+      importer = importer_class.new(project, client)
+
+      expect(importer)
+        .to receive(:id_for_already_imported_cache)
+        .with(object)
+        .and_return(object.id)
+
+      expect(Gitlab::GithubImport::Caching)
+        .to receive(:set_add)
+        .with(importer.already_imported_cache_key, object.id)
+        .and_call_original
+
+      importer.mark_as_imported(object)
+    end
+  end
+end
diff --git a/spec/lib/gitlab/github_import/representation/diff_note_spec.rb b/spec/lib/gitlab/github_import/representation/diff_note_spec.rb
new file mode 100644
index 00000000000..7b0a1ea4948
--- /dev/null
+++ b/spec/lib/gitlab/github_import/representation/diff_note_spec.rb
@@ -0,0 +1,164 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::Representation::DiffNote do
+  let(:hunk) do
+    '@@ -1 +1 @@
+    -Hello
+    +Hello world'
+  end
+
+  let(:created_at) { Time.new(2017, 1, 1, 12, 00) }
+  let(:updated_at) { Time.new(2017, 1, 1, 12, 15) }
+
+  shared_examples 'a DiffNote' do
+    it 'returns an instance of DiffNote' do
+      expect(note).to be_an_instance_of(described_class)
+    end
+
+    context 'the returned DiffNote' do
+      it 'includes the number of the note' do
+        expect(note.noteable_id).to eq(42)
+      end
+
+      it 'includes the file path of the diff' do
+        expect(note.file_path).to eq('README.md')
+      end
+
+      it 'includes the commit ID' do
+        expect(note.commit_id).to eq('123abc')
+      end
+
+      it 'includes the user details' do
+        expect(note.author)
+          .to be_an_instance_of(Gitlab::GithubImport::Representation::User)
+
+        expect(note.author.id).to eq(4)
+        expect(note.author.login).to eq('alice')
+      end
+
+      it 'includes the note body' do
+        expect(note.note).to eq('Hello world')
+      end
+
+      it 'includes the created timestamp' do
+        expect(note.created_at).to eq(created_at)
+      end
+
+      it 'includes the updated timestamp' do
+        expect(note.updated_at).to eq(updated_at)
+      end
+
+      it 'includes the GitHub ID' do
+        expect(note.github_id).to eq(1)
+      end
+
+      it 'returns the noteable type' do
+        expect(note.noteable_type).to eq('MergeRequest')
+      end
+    end
+  end
+
+  describe '.from_api_response' do
+    let(:response) do
+      double(
+        :response,
+        html_url: 'https://github.com/foo/bar/pull/42',
+        path: 'README.md',
+        commit_id: '123abc',
+        diff_hunk: hunk,
+        user: double(:user, id: 4, login: 'alice'),
+        body: 'Hello world',
+        created_at: created_at,
+        updated_at: updated_at,
+        id: 1
+      )
+    end
+
+    it_behaves_like 'a DiffNote' do
+      let(:note) { described_class.from_api_response(response) }
+    end
+
+    it 'does not set the user if the response did not include a user' do
+      allow(response)
+        .to receive(:user)
+        .and_return(nil)
+
+      note = described_class.from_api_response(response)
+
+      expect(note.author).to be_nil
+    end
+  end
+
+  describe '.from_json_hash' do
+    it_behaves_like 'a DiffNote' do
+      let(:hash) do
+        {
+          'noteable_type' => 'MergeRequest',
+          'noteable_id' => 42,
+          'file_path' => 'README.md',
+          'commit_id' => '123abc',
+          'diff_hunk' => hunk,
+          'author' => { 'id' => 4, 'login' => 'alice' },
+          'note' => 'Hello world',
+          'created_at' => created_at.to_s,
+          'updated_at' => updated_at.to_s,
+          'github_id' => 1
+        }
+      end
+
+      let(:note) { described_class.from_json_hash(hash) }
+    end
+
+    it 'does not convert the author if it was not specified' do
+      hash = {
+        'noteable_type' => 'MergeRequest',
+        'noteable_id' => 42,
+        'file_path' => 'README.md',
+        'commit_id' => '123abc',
+        'diff_hunk' => hunk,
+        'note' => 'Hello world',
+        'created_at' => created_at.to_s,
+        'updated_at' => updated_at.to_s,
+        'github_id' => 1
+      }
+
+      note = described_class.from_json_hash(hash)
+
+      expect(note.author).to be_nil
+    end
+  end
+
+  describe '#line_code' do
+    it 'returns a String' do
+      note = described_class.new(diff_hunk: hunk, file_path: 'README.md')
+
+      expect(note.line_code).to be_an_instance_of(String)
+    end
+  end
+
+  describe '#diff_hash' do
+    it 'returns a Hash containing the diff details' do
+      note = described_class.from_json_hash(
+        'noteable_type' => 'MergeRequest',
+        'noteable_id' => 42,
+        'file_path' => 'README.md',
+        'commit_id' => '123abc',
+        'diff_hunk' => hunk,
+        'author' => { 'id' => 4, 'login' => 'alice' },
+        'note' => 'Hello world',
+        'created_at' => created_at.to_s,
+        'updated_at' => updated_at.to_s,
+        'github_id' => 1
+      )
+
+      expect(note.diff_hash).to eq(
+        diff: hunk,
+        new_path: 'README.md',
+        old_path: 'README.md',
+        a_mode: '100644',
+        b_mode: '100644',
+        new_file: false
+      )
+    end
+  end
+end
diff --git a/spec/lib/gitlab/github_import/representation/expose_attribute_spec.rb b/spec/lib/gitlab/github_import/representation/expose_attribute_spec.rb
new file mode 100644
index 00000000000..15de0fe49ff
--- /dev/null
+++ b/spec/lib/gitlab/github_import/representation/expose_attribute_spec.rb
@@ -0,0 +1,19 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::Representation::ExposeAttribute do
+  it 'defines a getter method that returns an attribute value' do
+    klass = Class.new do
+      include Gitlab::GithubImport::Representation::ExposeAttribute
+
+      expose_attribute :number
+
+      attr_reader :attributes
+
+      def initialize
+        @attributes = { number: 42 }
+      end
+    end
+
+    expect(klass.new.number).to eq(42)
+  end
+end
diff --git a/spec/lib/gitlab/github_import/representation/issue_spec.rb b/spec/lib/gitlab/github_import/representation/issue_spec.rb
new file mode 100644
index 00000000000..99330ce42cb
--- /dev/null
+++ b/spec/lib/gitlab/github_import/representation/issue_spec.rb
@@ -0,0 +1,182 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::Representation::Issue do
+  let(:created_at) { Time.new(2017, 1, 1, 12, 00) }
+  let(:updated_at) { Time.new(2017, 1, 1, 12, 15) }
+
+  shared_examples 'an Issue' do
+    it 'returns an instance of Issue' do
+      expect(issue).to be_an_instance_of(described_class)
+    end
+
+    context 'the returned Issue' do
+      it 'includes the issue number' do
+        expect(issue.iid).to eq(42)
+      end
+
+      it 'includes the issue title' do
+        expect(issue.title).to eq('My Issue')
+      end
+
+      it 'includes the issue description' do
+        expect(issue.description).to eq('This is my issue')
+      end
+
+      it 'includes the milestone number' do
+        expect(issue.milestone_number).to eq(4)
+      end
+
+      it 'includes the issue state' do
+        expect(issue.state).to eq(:opened)
+      end
+
+      it 'includes the issue assignees' do
+        expect(issue.assignees[0])
+          .to be_an_instance_of(Gitlab::GithubImport::Representation::User)
+
+        expect(issue.assignees[0].id).to eq(4)
+        expect(issue.assignees[0].login).to eq('alice')
+      end
+
+      it 'includes the label names' do
+        expect(issue.label_names).to eq(%w[bug])
+      end
+
+      it 'includes the author details' do
+        expect(issue.author)
+          .to be_an_instance_of(Gitlab::GithubImport::Representation::User)
+
+        expect(issue.author.id).to eq(4)
+        expect(issue.author.login).to eq('alice')
+      end
+
+      it 'includes the created timestamp' do
+        expect(issue.created_at).to eq(created_at)
+      end
+
+      it 'includes the updated timestamp' do
+        expect(issue.updated_at).to eq(updated_at)
+      end
+
+      it 'is not a pull request' do
+        expect(issue.pull_request?).to eq(false)
+      end
+    end
+  end
+
+  describe '.from_api_response' do
+    let(:response) do
+      double(
+        :response,
+        number: 42,
+        title: 'My Issue',
+        body: 'This is my issue',
+        milestone: double(:milestone, number: 4),
+        state: 'open',
+        assignees: [double(:user, id: 4, login: 'alice')],
+        labels: [double(:label, name: 'bug')],
+        user: double(:user, id: 4, login: 'alice'),
+        created_at: created_at,
+        updated_at: updated_at,
+        pull_request: false
+      )
+    end
+
+    it_behaves_like 'an Issue' do
+      let(:issue) { described_class.from_api_response(response) }
+    end
+
+    it 'does not set the user if the response did not include a user' do
+      allow(response)
+        .to receive(:user)
+        .and_return(nil)
+
+      issue = described_class.from_api_response(response)
+
+      expect(issue.author).to be_nil
+    end
+  end
+
+  describe '.from_json_hash' do
+    it_behaves_like 'an Issue' do
+      let(:hash) do
+        {
+          'iid' => 42,
+          'title' => 'My Issue',
+          'description' => 'This is my issue',
+          'milestone_number' => 4,
+          'state' => 'opened',
+          'assignees' => [{ 'id' => 4, 'login' => 'alice' }],
+          'label_names' => %w[bug],
+          'author' => { 'id' => 4, 'login' => 'alice' },
+          'created_at' => created_at.to_s,
+          'updated_at' => updated_at.to_s,
+          'pull_request' => false
+        }
+      end
+
+      let(:issue) { described_class.from_json_hash(hash) }
+    end
+
+    it 'does not convert the author if it was not specified' do
+      hash = {
+        'iid' => 42,
+        'title' => 'My Issue',
+        'description' => 'This is my issue',
+        'milestone_number' => 4,
+        'state' => 'opened',
+        'assignees' => [{ 'id' => 4, 'login' => 'alice' }],
+        'label_names' => %w[bug],
+        'created_at' => created_at.to_s,
+        'updated_at' => updated_at.to_s,
+        'pull_request' => false
+      }
+
+      issue = described_class.from_json_hash(hash)
+
+      expect(issue.author).to be_nil
+    end
+  end
+
+  describe '#labels?' do
+    it 'returns true when the issue has labels assigned' do
+      issue = described_class.new(label_names: %w[bug])
+
+      expect(issue.labels?).to eq(true)
+    end
+
+    it 'returns false when the issue has no labels assigned' do
+      issue = described_class.new(label_names: [])
+
+      expect(issue.labels?).to eq(false)
+    end
+  end
+
+  describe '#pull_request?' do
+    it 'returns false for an issue' do
+      issue = described_class.new(pull_request: false)
+
+      expect(issue.pull_request?).to eq(false)
+    end
+
+    it 'returns true for a pull request' do
+      issue = described_class.new(pull_request: true)
+
+      expect(issue.pull_request?).to eq(true)
+    end
+  end
+
+  describe '#truncated_title' do
+    it 'truncates the title to 255 characters' do
+      object = described_class.new(title: 'm' * 300)
+
+      expect(object.truncated_title.length).to eq(255)
+    end
+
+    it 'does not truncate the title if it is shorter than 255 characters' do
+      object = described_class.new(title: 'foo')
+
+      expect(object.truncated_title).to eq('foo')
+    end
+  end
+end
diff --git a/spec/lib/gitlab/github_import/representation/note_spec.rb b/spec/lib/gitlab/github_import/representation/note_spec.rb
new file mode 100644
index 00000000000..f2c1c66b357
--- /dev/null
+++ b/spec/lib/gitlab/github_import/representation/note_spec.rb
@@ -0,0 +1,107 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::Representation::Note do
+  let(:created_at) { Time.new(2017, 1, 1, 12, 00) }
+  let(:updated_at) { Time.new(2017, 1, 1, 12, 15) }
+
+  shared_examples 'a Note' do
+    it 'returns an instance of Note' do
+      expect(note).to be_an_instance_of(described_class)
+    end
+
+    context 'the returned Note' do
+      it 'includes the noteable ID' do
+        expect(note.noteable_id).to eq(42)
+      end
+
+      it 'includes the noteable type' do
+        expect(note.noteable_type).to eq('Issue')
+      end
+
+      it 'includes the author details' do
+        expect(note.author)
+          .to be_an_instance_of(Gitlab::GithubImport::Representation::User)
+
+        expect(note.author.id).to eq(4)
+        expect(note.author.login).to eq('alice')
+      end
+
+      it 'includes the note body' do
+        expect(note.note).to eq('Hello world')
+      end
+
+      it 'includes the created timestamp' do
+        expect(note.created_at).to eq(created_at)
+      end
+
+      it 'includes the updated timestamp' do
+        expect(note.updated_at).to eq(updated_at)
+      end
+
+      it 'includes the GitHub ID' do
+        expect(note.github_id).to eq(1)
+      end
+    end
+  end
+
+  describe '.from_api_response' do
+    let(:response) do
+      double(
+        :response,
+        html_url: 'https://github.com/foo/bar/issues/42',
+        user: double(:user, id: 4, login: 'alice'),
+        body: 'Hello world',
+        created_at: created_at,
+        updated_at: updated_at,
+        id: 1
+      )
+    end
+
+    it_behaves_like 'a Note' do
+      let(:note) { described_class.from_api_response(response) }
+    end
+
+    it 'does not set the user if the response did not include a user' do
+      allow(response)
+        .to receive(:user)
+        .and_return(nil)
+
+      note = described_class.from_api_response(response)
+
+      expect(note.author).to be_nil
+    end
+  end
+
+  describe '.from_json_hash' do
+    it_behaves_like 'a Note' do
+      let(:hash) do
+        {
+          'noteable_id' => 42,
+          'noteable_type' => 'Issue',
+          'author' => { 'id' => 4, 'login' => 'alice' },
+          'note' => 'Hello world',
+          'created_at' => created_at.to_s,
+          'updated_at' => updated_at.to_s,
+          'github_id' => 1
+        }
+      end
+
+      let(:note) { described_class.from_json_hash(hash) }
+    end
+
+    it 'does not convert the author if it was not specified' do
+      hash = {
+        'noteable_id' => 42,
+        'noteable_type' => 'Issue',
+        'note' => 'Hello world',
+        'created_at' => created_at.to_s,
+        'updated_at' => updated_at.to_s,
+        'github_id' => 1
+      }
+
+      note = described_class.from_json_hash(hash)
+
+      expect(note.author).to be_nil
+    end
+  end
+end
diff --git a/spec/lib/gitlab/github_import/representation/pull_request_spec.rb b/spec/lib/gitlab/github_import/representation/pull_request_spec.rb
new file mode 100644
index 00000000000..33f6ff0ae6a
--- /dev/null
+++ b/spec/lib/gitlab/github_import/representation/pull_request_spec.rb
@@ -0,0 +1,288 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::Representation::PullRequest do
+  let(:created_at) { Time.new(2017, 1, 1, 12, 00) }
+  let(:updated_at) { Time.new(2017, 1, 1, 12, 15) }
+  let(:merged_at) { Time.new(2017, 1, 1, 12, 17) }
+
+  shared_examples 'a PullRequest' do
+    it 'returns an instance of PullRequest' do
+      expect(pr).to be_an_instance_of(described_class)
+    end
+
+    context 'the returned PullRequest' do
+      it 'includes the pull request number' do
+        expect(pr.iid).to eq(42)
+      end
+
+      it 'includes the pull request title' do
+        expect(pr.title).to eq('My Pull Request')
+      end
+
+      it 'includes the pull request description' do
+        expect(pr.description).to eq('This is my pull request')
+      end
+
+      it 'includes the source branch name' do
+        expect(pr.source_branch).to eq('my-feature')
+      end
+
+      it 'includes the source branch SHA' do
+        expect(pr.source_branch_sha).to eq('123abc')
+      end
+
+      it 'includes the target branch name' do
+        expect(pr.target_branch).to eq('master')
+      end
+
+      it 'includes the target branch SHA' do
+        expect(pr.target_branch_sha).to eq('456def')
+      end
+
+      it 'includes the milestone number' do
+        expect(pr.milestone_number).to eq(4)
+      end
+
+      it 'includes the user details' do
+        expect(pr.author)
+          .to be_an_instance_of(Gitlab::GithubImport::Representation::User)
+
+        expect(pr.author.id).to eq(4)
+        expect(pr.author.login).to eq('alice')
+      end
+
+      it 'includes the assignee details' do
+        expect(pr.assignee)
+          .to be_an_instance_of(Gitlab::GithubImport::Representation::User)
+
+        expect(pr.assignee.id).to eq(4)
+        expect(pr.assignee.login).to eq('alice')
+      end
+
+      it 'includes the created timestamp' do
+        expect(pr.created_at).to eq(created_at)
+      end
+
+      it 'includes the updated timestamp' do
+        expect(pr.updated_at).to eq(updated_at)
+      end
+
+      it 'includes the merged timestamp' do
+        expect(pr.merged_at).to eq(merged_at)
+      end
+
+      it 'includes the source repository ID' do
+        expect(pr.source_repository_id).to eq(400)
+      end
+
+      it 'includes the target repository ID' do
+        expect(pr.target_repository_id).to eq(200)
+      end
+
+      it 'includes the source repository owner name' do
+        expect(pr.source_repository_owner).to eq('alice')
+      end
+
+      it 'includes the pull request state' do
+        expect(pr.state).to eq(:merged)
+      end
+    end
+  end
+
+  describe '.from_api_response' do
+    let(:response) do
+      double(
+        :response,
+        number: 42,
+        title: 'My Pull Request',
+        body: 'This is my pull request',
+        state: 'closed',
+        head: double(
+          :head,
+          sha: '123abc',
+          ref: 'my-feature',
+          repo: double(:repo, id: 400),
+          user: double(:user, id: 4, login: 'alice')
+        ),
+        base: double(
+          :base,
+          sha: '456def',
+          ref: 'master',
+          repo: double(:repo, id: 200)
+        ),
+        milestone: double(:milestone, number: 4),
+        user: double(:user, id: 4, login: 'alice'),
+        assignee: double(:user, id: 4, login: 'alice'),
+        created_at: created_at,
+        updated_at: updated_at,
+        merged_at: merged_at
+      )
+    end
+
+    it_behaves_like 'a PullRequest' do
+      let(:pr) { described_class.from_api_response(response) }
+    end
+
+    it 'does not set the user if the response did not include a user' do
+      allow(response)
+        .to receive(:user)
+        .and_return(nil)
+
+      pr = described_class.from_api_response(response)
+
+      expect(pr.author).to be_nil
+    end
+  end
+
+  describe '.from_json_hash' do
+    it_behaves_like 'a PullRequest' do
+      let(:hash) do
+        {
+          'iid' => 42,
+          'title' => 'My Pull Request',
+          'description' => 'This is my pull request',
+          'source_branch' => 'my-feature',
+          'source_branch_sha' => '123abc',
+          'target_branch' => 'master',
+          'target_branch_sha' => '456def',
+          'source_repository_id' => 400,
+          'target_repository_id' => 200,
+          'source_repository_owner' => 'alice',
+          'state' => 'closed',
+          'milestone_number' => 4,
+          'author' => { 'id' => 4, 'login' => 'alice' },
+          'assignee' => { 'id' => 4, 'login' => 'alice' },
+          'created_at' => created_at.to_s,
+          'updated_at' => updated_at.to_s,
+          'merged_at' => merged_at.to_s
+        }
+      end
+
+      let(:pr) { described_class.from_json_hash(hash) }
+    end
+
+    it 'does not convert the author if it was not specified' do
+      hash = {
+        'iid' => 42,
+        'title' => 'My Pull Request',
+        'description' => 'This is my pull request',
+        'source_branch' => 'my-feature',
+        'source_branch_sha' => '123abc',
+        'target_branch' => 'master',
+        'target_branch_sha' => '456def',
+        'source_repository_id' => 400,
+        'target_repository_id' => 200,
+        'source_repository_owner' => 'alice',
+        'state' => 'closed',
+        'milestone_number' => 4,
+        'assignee' => { 'id' => 4, 'login' => 'alice' },
+        'created_at' => created_at.to_s,
+        'updated_at' => updated_at.to_s,
+        'merged_at' => merged_at.to_s
+      }
+
+      pr = described_class.from_json_hash(hash)
+
+      expect(pr.author).to be_nil
+    end
+  end
+
+  describe '#state' do
+    it 'returns :opened for an open pull request' do
+      pr = described_class.new(state: :opened)
+
+      expect(pr.state).to eq(:opened)
+    end
+
+    it 'returns :closed for a closed pull request' do
+      pr = described_class.new(state: :closed)
+
+      expect(pr.state).to eq(:closed)
+    end
+
+    it 'returns :merged for a merged pull request' do
+      pr = described_class.new(state: :closed, merged_at: merged_at)
+
+      expect(pr.state).to eq(:merged)
+    end
+  end
+
+  describe '#cross_project?' do
+    it 'returns false for a pull request submitted from the target project' do
+      pr = described_class.new(source_repository_id: 1, target_repository_id: 1)
+
+      expect(pr).not_to be_cross_project
+    end
+
+    it 'returns true for a pull request submitted from a different project' do
+      pr = described_class.new(source_repository_id: 1, target_repository_id: 2)
+
+      expect(pr).to be_cross_project
+    end
+
+    it 'returns true if no source repository is present' do
+      pr = described_class.new(target_repository_id: 2)
+
+      expect(pr).to be_cross_project
+    end
+  end
+
+  describe '#formatted_source_branch' do
+    context 'for a cross-project pull request' do
+      it 'includes the owner name in the branch name' do
+        pr = described_class.new(
+          source_repository_owner: 'foo',
+          source_branch: 'branch',
+          target_branch: 'master',
+          source_repository_id: 1,
+          target_repository_id: 2
+        )
+
+        expect(pr.formatted_source_branch).to eq('foo:branch')
+      end
+    end
+
+    context 'for a regular pull request' do
+      it 'returns the source branch name' do
+        pr = described_class.new(
+          source_repository_owner: 'foo',
+          source_branch: 'branch',
+          target_branch: 'master',
+          source_repository_id: 1,
+          target_repository_id: 1
+        )
+
+        expect(pr.formatted_source_branch).to eq('branch')
+      end
+    end
+
+    context 'for a pull request with the same source and target branches' do
+      it 'returns a generated source branch name' do
+        pr = described_class.new(
+          iid: 1,
+          source_repository_owner: 'foo',
+          source_branch: 'branch',
+          target_branch: 'branch',
+          source_repository_id: 1,
+          target_repository_id: 1
+        )
+
+        expect(pr.formatted_source_branch).to eq('branch-1')
+      end
+    end
+  end
+
+  describe '#truncated_title' do
+    it 'truncates the title to 255 characters' do
+      object = described_class.new(title: 'm' * 300)
+
+      expect(object.truncated_title.length).to eq(255)
+    end
+
+    it 'does not truncate the title if it is shorter than 255 characters' do
+      object = described_class.new(title: 'foo')
+
+      expect(object.truncated_title).to eq('foo')
+    end
+  end
+end
diff --git a/spec/lib/gitlab/github_import/representation/to_hash_spec.rb b/spec/lib/gitlab/github_import/representation/to_hash_spec.rb
new file mode 100644
index 00000000000..c296aa0a45b
--- /dev/null
+++ b/spec/lib/gitlab/github_import/representation/to_hash_spec.rb
@@ -0,0 +1,37 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::Representation::ToHash do
+  describe '#to_hash' do
+    let(:user) { double(:user, attributes: { login: 'alice' }) }
+
+    let(:issue) do
+      double(
+        :issue,
+        attributes: { user: user, assignees: [user], number: 42 }
+      )
+    end
+
+    let(:issue_hash) { issue.to_hash }
+
+    before do
+      user.extend(described_class)
+      issue.extend(described_class)
+    end
+
+    it 'converts an object to a Hash' do
+      expect(issue_hash).to be_an_instance_of(Hash)
+    end
+
+    it 'converts nested objects to Hashes' do
+      expect(issue_hash[:user]).to eq({ login: 'alice' })
+    end
+
+    it 'converts Array values to Hashes' do
+      expect(issue_hash[:assignees]).to eq([{ login: 'alice' }])
+    end
+
+    it 'keeps values as-is if they do not respond to #to_hash' do
+      expect(issue_hash[:number]).to eq(42)
+    end
+  end
+end
diff --git a/spec/lib/gitlab/github_import/representation/user_spec.rb b/spec/lib/gitlab/github_import/representation/user_spec.rb
new file mode 100644
index 00000000000..4e63e8ea568
--- /dev/null
+++ b/spec/lib/gitlab/github_import/representation/user_spec.rb
@@ -0,0 +1,33 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::Representation::User do
+  shared_examples 'a User' do
+    it 'returns an instance of User' do
+      expect(user).to be_an_instance_of(described_class)
+    end
+
+    context 'the returned User' do
+      it 'includes the user ID' do
+        expect(user.id).to eq(42)
+      end
+
+      it 'includes the username' do
+        expect(user.login).to eq('alice')
+      end
+    end
+  end
+
+  describe '.from_api_response' do
+    it_behaves_like 'a User' do
+      let(:response) { double(:response, id: 42, login: 'alice') }
+      let(:user) { described_class.from_api_response(response) }
+    end
+  end
+
+  describe '.from_json_hash' do
+    it_behaves_like 'a User' do
+      let(:hash) { { 'id' => 42, 'login' => 'alice' } }
+      let(:user) { described_class.from_json_hash(hash) }
+    end
+  end
+end
diff --git a/spec/lib/gitlab/github_import/representation_spec.rb b/spec/lib/gitlab/github_import/representation_spec.rb
new file mode 100644
index 00000000000..0b0610817b0
--- /dev/null
+++ b/spec/lib/gitlab/github_import/representation_spec.rb
@@ -0,0 +1,17 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::Representation do
+  describe '.symbolize_hash' do
+    it 'returns a Hash with the keys as Symbols' do
+      hash = described_class.symbolize_hash('number' => 10)
+
+      expect(hash).to eq({ number: 10 })
+    end
+
+    it 'parses timestamp fields into Time instances' do
+      hash = described_class.symbolize_hash('created_at' => '2017-01-01 12:00')
+
+      expect(hash[:created_at]).to be_an_instance_of(Time)
+    end
+  end
+end
diff --git a/spec/lib/gitlab/github_import/sequential_importer_spec.rb b/spec/lib/gitlab/github_import/sequential_importer_spec.rb
new file mode 100644
index 00000000000..6089b0b751f
--- /dev/null
+++ b/spec/lib/gitlab/github_import/sequential_importer_spec.rb
@@ -0,0 +1,37 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::SequentialImporter do
+  describe '#execute' do
+    it 'imports a project in sequence' do
+      repository = double(:repository)
+      project = double(:project, id: 1, repository: repository)
+      importer = described_class.new(project, token: 'foo')
+
+      expect_any_instance_of(Gitlab::GithubImport::Importer::RepositoryImporter)
+        .to receive(:execute)
+
+      described_class::SEQUENTIAL_IMPORTERS.each do |klass|
+        instance = double(:instance)
+
+        expect(klass).to receive(:new)
+          .with(project, importer.client)
+          .and_return(instance)
+
+        expect(instance).to receive(:execute)
+      end
+
+      described_class::PARALLEL_IMPORTERS.each do |klass|
+        instance = double(:instance)
+
+        expect(klass).to receive(:new)
+          .with(project, importer.client, parallel: false)
+          .and_return(instance)
+
+        expect(instance).to receive(:execute)
+      end
+
+      expect(repository).to receive(:after_import)
+      expect(importer.execute).to eq(true)
+    end
+  end
+end
diff --git a/spec/lib/gitlab/github_import/user_finder_spec.rb b/spec/lib/gitlab/github_import/user_finder_spec.rb
new file mode 100644
index 00000000000..29f4c00d9c7
--- /dev/null
+++ b/spec/lib/gitlab/github_import/user_finder_spec.rb
@@ -0,0 +1,333 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::UserFinder, :clean_gitlab_redis_cache do
+  let(:project) { create(:project) }
+  let(:client) { double(:client) }
+  let(:finder) { described_class.new(project, client) }
+
+  describe '#author_id_for' do
+    it 'returns the user ID for the author of an object' do
+      user = double(:user, id: 4, login: 'kittens')
+      note = double(:note, author: user)
+
+      expect(finder).to receive(:user_id_for).with(user).and_return(42)
+
+      expect(finder.author_id_for(note)).to eq([42, true])
+    end
+
+    it 'returns the ID of the project creator if no user ID could be found' do
+      user = double(:user, id: 4, login: 'kittens')
+      note = double(:note, author: user)
+
+      expect(finder).to receive(:user_id_for).with(user).and_return(nil)
+
+      expect(finder.author_id_for(note)).to eq([project.creator_id, false])
+    end
+
+    it 'returns the ID of the ghost user when the object has no user' do
+      note = double(:note, author: nil)
+
+      expect(finder.author_id_for(note)).to eq([User.ghost.id, true])
+    end
+
+    it 'returns the ID of the ghost user when the given object is nil' do
+      expect(finder.author_id_for(nil)).to eq([User.ghost.id, true])
+    end
+  end
+
+  describe '#assignee_id_for' do
+    it 'returns the user ID for the assignee of an issuable' do
+      user = double(:user, id: 4, login: 'kittens')
+      issue = double(:issue, assignee: user)
+
+      expect(finder).to receive(:user_id_for).with(user).and_return(42)
+      expect(finder.assignee_id_for(issue)).to eq(42)
+    end
+
+    it 'returns nil if the issuable does not have an assignee' do
+      issue = double(:issue, assignee: nil)
+
+      expect(finder).not_to receive(:user_id_for)
+      expect(finder.assignee_id_for(issue)).to be_nil
+    end
+  end
+
+  describe '#user_id_for' do
+    it 'returns the user ID for the given user' do
+      user = double(:user, id: 4, login: 'kittens')
+
+      expect(finder).to receive(:find).with(user.id, user.login).and_return(42)
+      expect(finder.user_id_for(user)).to eq(42)
+    end
+  end
+
+  describe '#find' do
+    let(:user) { create(:user) }
+
+    before do
+      allow(finder).to receive(:email_for_github_username)
+        .and_return(user.email)
+    end
+
+    context 'without a cache' do
+      before do
+        allow(finder).to receive(:find_from_cache).and_return([false, nil])
+        expect(finder).to receive(:find_id_from_database).and_call_original
+      end
+
+      it 'finds a GitLab user for a GitHub user ID' do
+        user.identities.create!(provider: :github, extern_uid: 42)
+
+        expect(finder.find(42, user.username)).to eq(user.id)
+      end
+
+      it 'finds a GitLab user for a GitHub Email address' do
+        expect(finder.find(42, user.username)).to eq(user.id)
+      end
+    end
+
+    context 'with a cache' do
+      it 'returns the cached user ID' do
+        expect(finder).to receive(:find_from_cache).and_return([true, user.id])
+        expect(finder).not_to receive(:find_id_from_database)
+
+        expect(finder.find(42, user.username)).to eq(user.id)
+      end
+
+      it 'does not query the database if the cache key exists but is empty' do
+        expect(finder).to receive(:find_from_cache).and_return([true, nil])
+        expect(finder).not_to receive(:find_id_from_database)
+
+        expect(finder.find(42, user.username)).to be_nil
+      end
+    end
+  end
+
+  describe '#find_from_cache' do
+    it 'retrieves a GitLab user ID for a GitHub user ID' do
+      expect(finder)
+        .to receive(:cached_id_for_github_id)
+        .with(42)
+        .and_return([true, 4])
+
+      expect(finder.find_from_cache(42)).to eq([true, 4])
+    end
+
+    it 'retrieves a GitLab user ID for a GitHub Email address' do
+      email = 'kittens@example.com'
+
+      expect(finder)
+        .to receive(:cached_id_for_github_id)
+        .with(42)
+        .and_return([false, nil])
+
+      expect(finder)
+        .to receive(:cached_id_for_github_email)
+        .with(email)
+        .and_return([true, 4])
+
+      expect(finder.find_from_cache(42, email)).to eq([true, 4])
+    end
+
+    it 'does not query the cache for an Email address when none is given' do
+      expect(finder)
+        .to receive(:cached_id_for_github_id)
+        .with(42)
+        .and_return([false, nil])
+
+      expect(finder).not_to receive(:cached_id_for_github_id)
+
+      expect(finder.find_from_cache(42)).to eq([false])
+    end
+  end
+
+  describe '#find_id_from_database' do
+    let(:user) { create(:user) }
+
+    it 'returns the GitLab user ID for a GitHub user ID' do
+      user.identities.create!(provider: :github, extern_uid: 42)
+
+      expect(finder.find_id_from_database(42, user.email)).to eq(user.id)
+    end
+
+    it 'returns the GitLab user ID for a GitHub Email address' do
+      expect(finder.find_id_from_database(42, user.email)).to eq(user.id)
+    end
+  end
+
+  describe '#email_for_github_username' do
+    let(:email) { 'kittens@example.com' }
+
+    context 'when an Email address is cached' do
+      it 'reads the Email address from the cache' do
+        expect(Gitlab::GithubImport::Caching)
+          .to receive(:read)
+          .and_return(email)
+
+        expect(client).not_to receive(:user)
+        expect(finder.email_for_github_username('kittens')).to eq(email)
+      end
+    end
+
+    context 'when an Email address is not cached' do
+      let(:user) { double(:user, email: email) }
+
+      it 'retrieves the Email address from the GitHub API' do
+        expect(client).to receive(:user).with('kittens').and_return(user)
+        expect(finder.email_for_github_username('kittens')).to eq(email)
+      end
+
+      it 'caches the Email address when an Email address is available' do
+        expect(client).to receive(:user).with('kittens').and_return(user)
+
+        expect(Gitlab::GithubImport::Caching)
+          .to receive(:write)
+          .with(an_instance_of(String), email)
+
+        finder.email_for_github_username('kittens')
+      end
+
+      it 'returns nil if the user does not exist' do
+        expect(client)
+          .to receive(:user)
+          .with('kittens')
+          .and_return(nil)
+
+        expect(Gitlab::GithubImport::Caching)
+          .not_to receive(:write)
+
+        expect(finder.email_for_github_username('kittens')).to be_nil
+      end
+    end
+  end
+
+  describe '#cached_id_for_github_id' do
+    let(:id) { 4 }
+
+    it 'reads a user ID from the cache' do
+      Gitlab::GithubImport::Caching
+        .write(described_class::ID_CACHE_KEY % id, 4)
+
+      expect(finder.cached_id_for_github_id(id)).to eq([true, 4])
+    end
+
+    it 'reads a non existing cache key' do
+      expect(finder.cached_id_for_github_id(id)).to eq([false, nil])
+    end
+  end
+
+  describe '#cached_id_for_github_email' do
+    let(:email) { 'kittens@example.com' }
+
+    it 'reads a user ID from the cache' do
+      Gitlab::GithubImport::Caching
+        .write(described_class::ID_FOR_EMAIL_CACHE_KEY % email, 4)
+
+      expect(finder.cached_id_for_github_email(email)).to eq([true, 4])
+    end
+
+    it 'reads a non existing cache key' do
+      expect(finder.cached_id_for_github_email(email)).to eq([false, nil])
+    end
+  end
+
+  describe '#id_for_github_id' do
+    let(:id) { 4 }
+
+    it 'queries and caches the user ID for a given GitHub ID' do
+      expect(finder).to receive(:query_id_for_github_id)
+        .with(id)
+        .and_return(42)
+
+      expect(Gitlab::GithubImport::Caching)
+        .to receive(:write)
+        .with(described_class::ID_CACHE_KEY % id, 42)
+
+      finder.id_for_github_id(id)
+    end
+
+    it 'caches a nil value if no ID could be found' do
+      expect(finder).to receive(:query_id_for_github_id)
+        .with(id)
+        .and_return(nil)
+
+      expect(Gitlab::GithubImport::Caching)
+        .to receive(:write)
+        .with(described_class::ID_CACHE_KEY % id, nil)
+
+      finder.id_for_github_id(id)
+    end
+  end
+
+  describe '#id_for_github_email' do
+    let(:email) { 'kittens@example.com' }
+
+    it 'queries and caches the user ID for a given Email address' do
+      expect(finder).to receive(:query_id_for_github_email)
+        .with(email)
+        .and_return(42)
+
+      expect(Gitlab::GithubImport::Caching)
+        .to receive(:write)
+        .with(described_class::ID_FOR_EMAIL_CACHE_KEY % email, 42)
+
+      finder.id_for_github_email(email)
+    end
+
+    it 'caches a nil value if no ID could be found' do
+      expect(finder).to receive(:query_id_for_github_email)
+        .with(email)
+        .and_return(nil)
+
+      expect(Gitlab::GithubImport::Caching)
+        .to receive(:write)
+        .with(described_class::ID_FOR_EMAIL_CACHE_KEY % email, nil)
+
+      finder.id_for_github_email(email)
+    end
+  end
+
+  describe '#query_id_for_github_id' do
+    it 'returns the ID of the user for the given GitHub user ID' do
+      user = create(:user)
+
+      user.identities.create!(provider: :github, extern_uid: '42')
+
+      expect(finder.query_id_for_github_id(42)).to eq(user.id)
+    end
+
+    it 'returns nil when no user ID could be found' do
+      expect(finder.query_id_for_github_id(42)).to be_nil
+    end
+  end
+
+  describe '#query_id_for_github_email' do
+    it 'returns the ID of the user for the given Email address' do
+      user = create(:user, email: 'kittens@example.com')
+
+      expect(finder.query_id_for_github_email(user.email)).to eq(user.id)
+    end
+
+    it 'returns nil if no user ID could be found' do
+      expect(finder.query_id_for_github_email('kittens@example.com')).to be_nil
+    end
+  end
+
+  describe '#read_id_from_cache' do
+    it 'reads an ID from the cache' do
+      Gitlab::GithubImport::Caching.write('foo', 10)
+
+      expect(finder.read_id_from_cache('foo')).to eq([true, 10])
+    end
+
+    it 'reads a cache key with an empty value' do
+      Gitlab::GithubImport::Caching.write('foo', nil)
+
+      expect(finder.read_id_from_cache('foo')).to eq([true, nil])
+    end
+
+    it 'reads a cache key that does not exist' do
+      expect(finder.read_id_from_cache('foo')).to eq([false, nil])
+    end
+  end
+end
diff --git a/spec/lib/gitlab/github_import_spec.rb b/spec/lib/gitlab/github_import_spec.rb
new file mode 100644
index 00000000000..51414800e8c
--- /dev/null
+++ b/spec/lib/gitlab/github_import_spec.rb
@@ -0,0 +1,79 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport do
+  let(:project) { double(:project) }
+
+  describe '.new_client_for' do
+    it 'returns a new Client with a custom token' do
+      expect(described_class::Client)
+        .to receive(:new)
+        .with('123', parallel: true)
+
+      described_class.new_client_for(project, token: '123')
+    end
+
+    it 'returns a new Client with a token stored in the import data' do
+      import_data = double(:import_data, credentials: { user: '123' })
+
+      expect(project)
+        .to receive(:import_data)
+        .and_return(import_data)
+
+      expect(described_class::Client)
+        .to receive(:new)
+        .with('123', parallel: true)
+
+      described_class.new_client_for(project)
+    end
+  end
+
+  describe '.insert_and_return_id' do
+    let(:attributes) { { iid: 1, title: 'foo' } }
+    let(:project) { create(:project) }
+
+    context 'on PostgreSQL' do
+      it 'returns the ID returned by the query' do
+        expect(Gitlab::Database)
+          .to receive(:bulk_insert)
+          .with(Issue.table_name, [attributes], return_ids: true)
+          .and_return([10])
+
+        id = described_class.insert_and_return_id(attributes, project.issues)
+
+        expect(id).to eq(10)
+      end
+    end
+
+    context 'on MySQL' do
+      it 'uses a separate query to retrieve the ID' do
+        issue = create(:issue, project: project, iid: attributes[:iid])
+
+        expect(Gitlab::Database)
+          .to receive(:bulk_insert)
+          .with(Issue.table_name, [attributes], return_ids: true)
+          .and_return([])
+
+        id = described_class.insert_and_return_id(attributes, project.issues)
+
+        expect(id).to eq(issue.id)
+      end
+    end
+  end
+
+  describe '.ghost_user_id', :clean_gitlab_redis_cache do
+    it 'returns the ID of the ghost user' do
+      expect(described_class.ghost_user_id).to eq(User.ghost.id)
+    end
+
+    it 'caches the ghost user ID' do
+      expect(Gitlab::GithubImport::Caching)
+        .to receive(:write)
+        .once
+        .and_call_original
+
+      2.times do
+        described_class.ghost_user_id
+      end
+    end
+  end
+end
diff --git a/spec/lib/gitlab/hook_data/issuable_builder_spec.rb b/spec/lib/gitlab/hook_data/issuable_builder_spec.rb
index 30da56bec16..26529c4759d 100644
--- a/spec/lib/gitlab/hook_data/issuable_builder_spec.rb
+++ b/spec/lib/gitlab/hook_data/issuable_builder_spec.rb
@@ -41,7 +41,8 @@ describe Gitlab::HookData::IssuableBuilder do
             labels: [
               [{ id: 1, title: 'foo' }],
               [{ id: 1, title: 'foo' }, { id: 2, title: 'bar' }]
-            ]
+            ],
+            total_time_spent: [1, 2]
           }
         end
         let(:data) { builder.build(user: user, changes: changes) }
@@ -53,6 +54,10 @@ describe Gitlab::HookData::IssuableBuilder do
             labels: {
               previous: [{ id: 1, title: 'foo' }],
               current: [{ id: 1, title: 'foo' }, { id: 2, title: 'bar' }]
+            },
+            total_time_spent: {
+              previous: 1,
+              current: 2
             }
           }))
         end
diff --git a/spec/lib/gitlab/hook_data/issue_builder_spec.rb b/spec/lib/gitlab/hook_data/issue_builder_spec.rb
index 6c529cdd051..aeacd577d18 100644
--- a/spec/lib/gitlab/hook_data/issue_builder_spec.rb
+++ b/spec/lib/gitlab/hook_data/issue_builder_spec.rb
@@ -11,7 +11,6 @@ describe Gitlab::HookData::IssueBuilder do
       %w[
         assignee_id
         author_id
-        branch_name
         closed_at
         confidential
         created_at
diff --git a/spec/lib/gitlab/hook_data/merge_request_builder_spec.rb b/spec/lib/gitlab/hook_data/merge_request_builder_spec.rb
index 92bf87bbad4..78475403f9e 100644
--- a/spec/lib/gitlab/hook_data/merge_request_builder_spec.rb
+++ b/spec/lib/gitlab/hook_data/merge_request_builder_spec.rb
@@ -26,7 +26,6 @@ describe Gitlab::HookData::MergeRequestBuilder do
         merge_user_id
         merge_when_pipeline_succeeds
         milestone_id
-        ref_fetched
         source_branch
         source_project_id
         state
diff --git a/spec/lib/gitlab/import_export/all_models.yml b/spec/lib/gitlab/import_export/all_models.yml
index 6c6b9154a0a..bf1e97654e5 100644
--- a/spec/lib/gitlab/import_export/all_models.yml
+++ b/spec/lib/gitlab/import_export/all_models.yml
@@ -147,10 +147,6 @@ deploy_keys:
 - user
 - deploy_keys_projects
 - projects
-cluster:
-- project
-- user
-- service
 services:
 - project
 - service_hook
@@ -182,6 +178,8 @@ project:
 - tags
 - chat_services
 - cluster
+- clusters
+- cluster_project
 - creator
 - group
 - namespace
@@ -276,6 +274,7 @@ project:
 - root_of_fork_network
 - fork_network_member
 - fork_network
+- custom_attributes
 award_emoji:
 - awardable
 - user
@@ -289,4 +288,4 @@ push_event_payload:
 - event
 issue_assignees:
 - issue
-- assignee
\ No newline at end of file
+- assignee
diff --git a/spec/lib/gitlab/import_export/fork_spec.rb b/spec/lib/gitlab/import_export/fork_spec.rb
index dd0ce0dae41..cfb15ee7e8b 100644
--- a/spec/lib/gitlab/import_export/fork_spec.rb
+++ b/spec/lib/gitlab/import_export/fork_spec.rb
@@ -46,7 +46,7 @@ describe 'forked project import' do
   end
 
   it 'can access the MR' do
-    project.merge_requests.first.ensure_ref_fetched
+    project.merge_requests.first.fetch_ref!
 
     expect(project.repository.ref_exists?('refs/merge-requests/1/head')).to be_truthy
   end
diff --git a/spec/lib/gitlab/import_export/merge_request_parser_spec.rb b/spec/lib/gitlab/import_export/merge_request_parser_spec.rb
index 473ba40fae7..b793636c4d6 100644
--- a/spec/lib/gitlab/import_export/merge_request_parser_spec.rb
+++ b/spec/lib/gitlab/import_export/merge_request_parser_spec.rb
@@ -13,7 +13,7 @@ describe Gitlab::ImportExport::MergeRequestParser do
 
   let(:parsed_merge_request) do
     described_class.new(project,
-                        merge_request.diff_head_sha,
+                        'abcd',
                         merge_request,
                         merge_request.as_json).parse!
   end
@@ -29,4 +29,14 @@ describe Gitlab::ImportExport::MergeRequestParser do
   it 'has a target branch' do
     expect(project.repository.branch_exists?(parsed_merge_request.target_branch)).to be true
   end
+
+  it 'parses a MR that has no source branch' do
+    allow_any_instance_of(described_class).to receive(:branch_exists?).and_call_original
+    allow_any_instance_of(described_class).to receive(:branch_exists?).with(merge_request.source_branch).and_return(false)
+    allow_any_instance_of(described_class).to receive(:fork_merge_request?).and_return(true)
+    allow(Gitlab::GitalyClient).to receive(:migrate).and_call_original
+    allow(Gitlab::GitalyClient).to receive(:migrate).with(:fetch_ref).and_return([nil, 0])
+
+    expect(parsed_merge_request).to eq(merge_request)
+  end
 end
diff --git a/spec/lib/gitlab/import_export/project.json b/spec/lib/gitlab/import_export/project.json
index 9a68bbb379c..f7c90093bde 100644
--- a/spec/lib/gitlab/import_export/project.json
+++ b/spec/lib/gitlab/import_export/project.json
@@ -7408,5 +7408,23 @@
     "snippets_access_level": 20,
     "updated_at": "2016-09-23T11:58:28.000Z",
     "wiki_access_level": 20
-  }
+  },
+  "custom_attributes": [
+    {
+      "id": 1,
+      "created_at": "2017-10-19T15:36:23.466Z",
+      "updated_at": "2017-10-19T15:36:23.466Z",
+      "project_id": 5,
+      "key": "foo",
+      "value": "foo"
+    },
+    {
+      "id": 2,
+      "created_at": "2017-10-19T15:37:21.904Z",
+      "updated_at": "2017-10-19T15:37:21.904Z",
+      "project_id": 5,
+      "key": "bar",
+      "value": "bar"
+    }
+  ]
 }
diff --git a/spec/lib/gitlab/import_export/project_tree_restorer_spec.rb b/spec/lib/gitlab/import_export/project_tree_restorer_spec.rb
index 76b01b6a1ec..e4b4cf5ba85 100644
--- a/spec/lib/gitlab/import_export/project_tree_restorer_spec.rb
+++ b/spec/lib/gitlab/import_export/project_tree_restorer_spec.rb
@@ -133,6 +133,10 @@ describe Gitlab::ImportExport::ProjectTreeRestorer do
         expect(@project.project_feature).not_to be_nil
       end
 
+      it 'has custom attributes' do
+        expect(@project.custom_attributes.count).to eq(2)
+      end
+
       it 'restores the correct service' do
         expect(CustomIssueTrackerService.first).not_to be_nil
       end
diff --git a/spec/lib/gitlab/import_export/project_tree_saver_spec.rb b/spec/lib/gitlab/import_export/project_tree_saver_spec.rb
index 8da768ebd07..ee173afbd50 100644
--- a/spec/lib/gitlab/import_export/project_tree_saver_spec.rb
+++ b/spec/lib/gitlab/import_export/project_tree_saver_spec.rb
@@ -168,6 +168,10 @@ describe Gitlab::ImportExport::ProjectTreeSaver do
         expect(project_feature["builds_access_level"]).to eq(ProjectFeature::PRIVATE)
       end
 
+      it 'has custom attributes' do
+        expect(saved_project_json['custom_attributes'].count).to eq(2)
+      end
+
       it 'does not complain about non UTF-8 characters in MR diffs' do
         ActiveRecord::Base.connection.execute("UPDATE merge_request_diffs SET st_diffs = '---\n- :diff: !binary |-\n    LS0tIC9kZXYvbnVsbAorKysgYi9pbWFnZXMvbnVjb3IucGRmCkBAIC0wLDAg\n    KzEsMTY3OSBAQAorJVBERi0xLjUNJeLjz9MNCisxIDAgb2JqDTw8L01ldGFk\n    YXR'")
 
@@ -279,6 +283,9 @@ describe Gitlab::ImportExport::ProjectTreeSaver do
     create(:event, :created, target: milestone, project: project, author: user)
     create(:service, project: project, type: 'CustomIssueTrackerService', category: 'issue_tracker')
 
+    create(:project_custom_attribute, project: project)
+    create(:project_custom_attribute, project: project)
+
     project
   end
 
diff --git a/spec/lib/gitlab/import_export/safe_model_attributes.yml b/spec/lib/gitlab/import_export/safe_model_attributes.yml
index 89d30407077..4e36af18aa7 100644
--- a/spec/lib/gitlab/import_export/safe_model_attributes.yml
+++ b/spec/lib/gitlab/import_export/safe_model_attributes.yml
@@ -313,30 +313,47 @@ Ci::PipelineSchedule:
 - deleted_at
 - created_at
 - updated_at
-Gcp::Cluster:
+Clusters::Cluster:
 - id
-- project_id
 - user_id
-- service_id
 - enabled
+- name
+- provider_type
+- platform_type
+- created_at
+- updated_at
+Clusters::Project:
+- id
+- project_id
+- cluster_id
+- created_at
+- updated_at
+Clusters::Providers::Gcp:
+- id
+- cluster_id
 - status
 - status_reason
-- project_namespace
+- gcp_project_id
+- zone
+- num_nodes
+- machine_type
+- operation_id
 - endpoint
+- encrypted_access_token
+- encrypted_access_token_iv
+- created_at
+- updated_at
+Clusters::Platforms::Kubernetes:
+- id
+- cluster_id
+- api_url
 - ca_cert
-- encrypted_kubernetes_token
-- encrypted_kubernetes_token_iv
+- namespace
 - username
 - encrypted_password
 - encrypted_password_iv
-- gcp_project_id
-- gcp_cluster_zone
-- gcp_cluster_name
-- gcp_cluster_size
-- gcp_machine_type
-- gcp_operation_id
-- encrypted_gcp_token
-- encrypted_gcp_token_iv
+- encrypted_token
+- encrypted_token_iv
 - created_at
 - updated_at
 DeployKey:
@@ -508,4 +525,11 @@ ProjectAutoDevops:
 - updated_at
 IssueAssignee:
 - user_id
-- issue_id
\ No newline at end of file
+- issue_id
+ProjectCustomAttribute:
+- id
+- created_at
+- updated_at
+- project_id
+- key
+- value
diff --git a/spec/lib/gitlab/import_sources_spec.rb b/spec/lib/gitlab/import_sources_spec.rb
index c5725f47453..f2fa315e3ec 100644
--- a/spec/lib/gitlab/import_sources_spec.rb
+++ b/spec/lib/gitlab/import_sources_spec.rb
@@ -56,14 +56,14 @@ describe Gitlab::ImportSources do
 
   describe '.importer' do
     import_sources = {
-      'github' => Github::Import,
+      'github' => Gitlab::GithubImport::ParallelImporter,
       'bitbucket' => Gitlab::BitbucketImport::Importer,
       'gitlab' => Gitlab::GitlabImport::Importer,
       'google_code' => Gitlab::GoogleCodeImport::Importer,
       'fogbugz' => Gitlab::FogbugzImport::Importer,
       'git' => nil,
       'gitlab_project' => Gitlab::ImportExport::Importer,
-      'gitea' => Gitlab::GithubImport::Importer
+      'gitea' => Gitlab::LegacyGithubImport::Importer
     }
 
     import_sources.each do |name, klass|
diff --git a/spec/lib/gitlab/issuable_metadata_spec.rb b/spec/lib/gitlab/issuable_metadata_spec.rb
index 2455969a183..42635a68ee1 100644
--- a/spec/lib/gitlab/issuable_metadata_spec.rb
+++ b/spec/lib/gitlab/issuable_metadata_spec.rb
@@ -1,8 +1,8 @@
 require 'spec_helper'
 
 describe Gitlab::IssuableMetadata do
-  let(:user)        { create(:user) }
-  let!(:project)    { create(:project, :public, :repository, creator: user, namespace: user.namespace) }
+  let(:user)     { create(:user) }
+  let!(:project) { create(:project, :public, :repository, creator: user, namespace: user.namespace) }
 
   subject { Class.new { include Gitlab::IssuableMetadata }.new }
 
@@ -10,6 +10,10 @@ describe Gitlab::IssuableMetadata do
     expect(subject.issuable_meta_data(Issue.none, 'Issue')).to eq({})
   end
 
+  it 'raises an error when given a collection with no limit' do
+    expect { subject.issuable_meta_data(Issue.all, 'Issue') }.to raise_error(/must have a limit/)
+  end
+
   context 'issues' do
     let!(:issue) { create(:issue, author: user, project: project) }
     let!(:closed_issue) { create(:issue, state: :closed, author: user, project: project) }
@@ -19,7 +23,7 @@ describe Gitlab::IssuableMetadata do
     let!(:closing_issues) { create(:merge_requests_closing_issues, issue: issue, merge_request: merge_request) }
 
     it 'aggregates stats on issues' do
-      data = subject.issuable_meta_data(Issue.all, 'Issue')
+      data = subject.issuable_meta_data(Issue.all.limit(10), 'Issue')
 
       expect(data.count).to eq(2)
       expect(data[issue.id].upvotes).to eq(1)
@@ -42,7 +46,7 @@ describe Gitlab::IssuableMetadata do
     let!(:note) { create(:note_on_merge_request, author: user, project: project, noteable: merge_request, note: "a comment on a MR") }
 
     it 'aggregates stats on merge requests' do
-      data = subject.issuable_meta_data(MergeRequest.all, 'MergeRequest')
+      data = subject.issuable_meta_data(MergeRequest.all.limit(10), 'MergeRequest')
 
       expect(data.count).to eq(2)
       expect(data[merge_request.id].upvotes).to eq(1)
diff --git a/spec/lib/gitlab/kubernetes/helm_spec.rb b/spec/lib/gitlab/kubernetes/helm_spec.rb
new file mode 100644
index 00000000000..15f99b0401f
--- /dev/null
+++ b/spec/lib/gitlab/kubernetes/helm_spec.rb
@@ -0,0 +1,100 @@
+require 'spec_helper'
+
+describe Gitlab::Kubernetes::Helm do
+  let(:client) { double('kubernetes client') }
+  let(:helm) { described_class.new(client) }
+  let(:namespace) { Gitlab::Kubernetes::Namespace.new(described_class::NAMESPACE, client) }
+  let(:install_helm) { true }
+  let(:chart) { 'stable/a_chart' }
+  let(:application_name) { 'app_name' }
+  let(:command) { Gitlab::Kubernetes::Helm::InstallCommand.new(application_name, install_helm, chart) }
+  subject { helm }
+
+  before do
+    allow(Gitlab::Kubernetes::Namespace).to receive(:new).with(described_class::NAMESPACE, client).and_return(namespace)
+  end
+
+  describe '#initialize' do
+    it 'creates a namespace object' do
+      expect(Gitlab::Kubernetes::Namespace).to receive(:new).with(described_class::NAMESPACE, client)
+
+      subject
+    end
+  end
+
+  describe '#install' do
+    before do
+      allow(client).to receive(:create_pod).and_return(nil)
+      allow(namespace).to receive(:ensure_exists!).once
+    end
+
+    it 'ensures the namespace exists before creating the POD' do
+      expect(namespace).to receive(:ensure_exists!).once.ordered
+      expect(client).to receive(:create_pod).once.ordered
+
+      subject.install(command)
+    end
+  end
+
+  describe '#installation_status' do
+    let(:phase) { Gitlab::Kubernetes::Pod::RUNNING }
+    let(:pod) { Kubeclient::Resource.new(status: { phase: phase }) } # partial representation
+
+    it 'fetches POD phase from kubernetes cluster' do
+      expect(client).to receive(:get_pod).with(command.pod_name, described_class::NAMESPACE).once.and_return(pod)
+
+      expect(subject.installation_status(command.pod_name)).to eq(phase)
+    end
+  end
+
+  describe '#installation_log' do
+    let(:log) { 'some output' }
+    let(:response) { RestClient::Response.new(log) }
+
+    it 'fetches POD phase from kubernetes cluster' do
+      expect(client).to receive(:get_pod_log).with(command.pod_name, described_class::NAMESPACE).once.and_return(response)
+
+      expect(subject.installation_log(command.pod_name)).to eq(log)
+    end
+  end
+
+  describe '#delete_installation_pod!' do
+    it 'deletes the POD from kubernetes cluster' do
+      expect(client).to receive(:delete_pod).with(command.pod_name, described_class::NAMESPACE).once
+
+      subject.delete_installation_pod!(command.pod_name)
+    end
+  end
+
+  describe '#helm_init_command' do
+    subject { helm.send(:helm_init_command, command) }
+
+    context 'when command.install_helm is true' do
+      let(:install_helm) { true }
+
+      it { is_expected.to eq('helm init >/dev/null') }
+    end
+
+    context 'when command.install_helm is false' do
+      let(:install_helm) { false }
+
+      it { is_expected.to eq('helm init --client-only >/dev/null') }
+    end
+  end
+
+  describe '#helm_install_command' do
+    subject { helm.send(:helm_install_command, command) }
+
+    context 'when command.chart is nil' do
+      let(:chart) { nil }
+
+      it { is_expected.to be_nil }
+    end
+
+    context 'when command.chart is set' do
+      let(:chart) { 'stable/a_chart' }
+
+      it { is_expected.to eq("helm install #{chart} --name #{application_name} --namespace #{namespace.name} >/dev/null")}
+    end
+  end
+end
diff --git a/spec/lib/gitlab/kubernetes/namespace_spec.rb b/spec/lib/gitlab/kubernetes/namespace_spec.rb
new file mode 100644
index 00000000000..b3c987f9344
--- /dev/null
+++ b/spec/lib/gitlab/kubernetes/namespace_spec.rb
@@ -0,0 +1,66 @@
+require 'spec_helper'
+
+describe Gitlab::Kubernetes::Namespace do
+  let(:name) { 'a_namespace' }
+  let(:client) { double('kubernetes client') }
+  subject { described_class.new(name, client) }
+
+  it { expect(subject.name).to eq(name) }
+
+  describe '#exists?' do
+    context 'when namespace do not exits' do
+      let(:exception) { ::KubeException.new(404, "namespace #{name} not found", nil) }
+
+      it 'returns false' do
+        expect(client).to receive(:get_namespace).with(name).once.and_raise(exception)
+
+        expect(subject.exists?).to be_falsey
+      end
+    end
+
+    context 'when namespace exits' do
+      let(:namespace) { ::Kubeclient::Resource.new(kind: 'Namespace', metadata: { name: name }) } # partial representation
+
+      it 'returns true' do
+        expect(client).to receive(:get_namespace).with(name).once.and_return(namespace)
+
+        expect(subject.exists?).to be_truthy
+      end
+    end
+
+    context 'when cluster cannot be reached' do
+      let(:exception) { Errno::ECONNREFUSED.new }
+
+      it 'raises exception' do
+        expect(client).to receive(:get_namespace).with(name).once.and_raise(exception)
+
+        expect { subject.exists? }.to raise_error(exception)
+      end
+    end
+  end
+
+  describe '#create!' do
+    it 'creates a namespace' do
+      matcher = have_attributes(metadata: have_attributes(name: name))
+      expect(client).to receive(:create_namespace).with(matcher).once
+
+      expect { subject.create! }.not_to raise_error
+    end
+  end
+
+  describe '#ensure_exists!' do
+    it 'checks for existing namespace before creating' do
+      expect(subject).to receive(:exists?).once.ordered.and_return(false)
+      expect(subject).to receive(:create!).once.ordered
+
+      subject.ensure_exists!
+    end
+
+    it 'do not re-create an existing namespace' do
+      expect(subject).to receive(:exists?).once.and_return(true)
+      expect(subject).not_to receive(:create!)
+
+      subject.ensure_exists!
+    end
+  end
+end
diff --git a/spec/lib/gitlab/github_import/branch_formatter_spec.rb b/spec/lib/gitlab/legacy_github_import/branch_formatter_spec.rb
index 426b43f8b51..48655851140 100644
--- a/spec/lib/gitlab/github_import/branch_formatter_spec.rb
+++ b/spec/lib/gitlab/legacy_github_import/branch_formatter_spec.rb
@@ -1,6 +1,6 @@
 require 'spec_helper'
 
-describe Gitlab::GithubImport::BranchFormatter do
+describe Gitlab::LegacyGithubImport::BranchFormatter do
   let(:project) { create(:project, :repository) }
   let(:commit) { create(:commit, project: project) }
   let(:repo) { double }
diff --git a/spec/lib/gitlab/legacy_github_import/client_spec.rb b/spec/lib/gitlab/legacy_github_import/client_spec.rb
new file mode 100644
index 00000000000..80b767abce0
--- /dev/null
+++ b/spec/lib/gitlab/legacy_github_import/client_spec.rb
@@ -0,0 +1,97 @@
+require 'spec_helper'
+
+describe Gitlab::LegacyGithubImport::Client do
+  let(:token) { '123456' }
+  let(:github_provider) { Settingslogic.new('app_id' => 'asd123', 'app_secret' => 'asd123', 'name' => 'github', 'args' => { 'client_options' => {} }) }
+
+  subject(:client) { described_class.new(token) }
+
+  before do
+    allow(Gitlab.config.omniauth).to receive(:providers).and_return([github_provider])
+  end
+
+  it 'convert OAuth2 client options to symbols' do
+    client.client.options.keys.each do |key|
+      expect(key).to be_kind_of(Symbol)
+    end
+  end
+
+  it 'does not crash (e.g. Settingslogic::MissingSetting) when verify_ssl config is not present' do
+    expect { client.api }.not_to raise_error
+  end
+
+  context 'when config is missing' do
+    before do
+      allow(Gitlab.config.omniauth).to receive(:providers).and_return([])
+    end
+
+    it 'is still possible to get an Octokit client' do
+      expect { client.api }.not_to raise_error
+    end
+
+    it 'is not be possible to get an OAuth2 client' do
+      expect { client.client }.to raise_error(Projects::ImportService::Error)
+    end
+  end
+
+  context 'allow SSL verification to be configurable on API' do
+    before do
+      github_provider['verify_ssl'] = false
+    end
+
+    it 'uses supplied value' do
+      expect(client.client.options[:connection_opts][:ssl]).to eq({ verify: false })
+      expect(client.api.connection_options[:ssl]).to eq({ verify: false })
+    end
+  end
+
+  describe '#api_endpoint' do
+    context 'when provider does not specity an API endpoint' do
+      it 'uses GitHub root API endpoint' do
+        expect(client.api.api_endpoint).to eq 'https://api.github.com/'
+      end
+    end
+
+    context 'when provider specify a custom API endpoint' do
+      before do
+        github_provider['args']['client_options']['site'] = 'https://github.company.com/'
+      end
+
+      it 'uses the custom API endpoint' do
+        expect(OmniAuth::Strategies::GitHub).not_to receive(:default_options)
+        expect(client.api.api_endpoint).to eq 'https://github.company.com/'
+      end
+    end
+
+    context 'when given a host' do
+      subject(:client) { described_class.new(token, host: 'https://try.gitea.io/') }
+
+      it 'builds a endpoint with the given host and the default API version' do
+        expect(client.api.api_endpoint).to eq 'https://try.gitea.io/api/v3/'
+      end
+    end
+
+    context 'when given an API version' do
+      subject(:client) { described_class.new(token, api_version: 'v3') }
+
+      it 'does not use the API version without a host' do
+        expect(client.api.api_endpoint).to eq 'https://api.github.com/'
+      end
+    end
+
+    context 'when given a host and version' do
+      subject(:client) { described_class.new(token, host: 'https://try.gitea.io/', api_version: 'v3') }
+
+      it 'builds a endpoint with the given options' do
+        expect(client.api.api_endpoint).to eq 'https://try.gitea.io/api/v3/'
+      end
+    end
+  end
+
+  it 'does not raise error when rate limit is disabled' do
+    stub_request(:get, /api.github.com/)
+    allow(client.api).to receive(:rate_limit!).and_raise(Octokit::NotFound)
+
+    expect { client.issues {} }.not_to raise_error
+  end
+end
diff --git a/spec/lib/gitlab/github_import/comment_formatter_spec.rb b/spec/lib/gitlab/legacy_github_import/comment_formatter_spec.rb
index 035ac8c7c1f..413654e108c 100644
--- a/spec/lib/gitlab/github_import/comment_formatter_spec.rb
+++ b/spec/lib/gitlab/legacy_github_import/comment_formatter_spec.rb
@@ -1,6 +1,6 @@
 require 'spec_helper'
 
-describe Gitlab::GithubImport::CommentFormatter do
+describe Gitlab::LegacyGithubImport::CommentFormatter do
   let(:client) { double }
   let(:project) { create(:project) }
   let(:octocat) { double(id: 123456, login: 'octocat', email: 'octocat@example.com') }
diff --git a/spec/lib/gitlab/github_import/importer_spec.rb b/spec/lib/gitlab/legacy_github_import/importer_spec.rb
index d570f34985b..20514486727 100644
--- a/spec/lib/gitlab/github_import/importer_spec.rb
+++ b/spec/lib/gitlab/legacy_github_import/importer_spec.rb
@@ -1,7 +1,7 @@
 require 'spec_helper'
 
-describe Gitlab::GithubImport::Importer do
-  shared_examples 'Gitlab::GithubImport::Importer#execute' do
+describe Gitlab::LegacyGithubImport::Importer do
+  shared_examples 'Gitlab::LegacyGithubImport::Importer#execute' do
     let(:expected_not_called) { [] }
 
     before do
@@ -35,7 +35,7 @@ describe Gitlab::GithubImport::Importer do
     end
   end
 
-  shared_examples 'Gitlab::GithubImport::Importer#execute an error occurs' do
+  shared_examples 'Gitlab::LegacyGithubImport::Importer#execute an error occurs' do
     before do
       allow(project).to receive(:import_data).and_return(double.as_null_object)
 
@@ -178,7 +178,7 @@ describe Gitlab::GithubImport::Importer do
     end
   end
 
-  shared_examples 'Gitlab::GithubImport unit-testing' do
+  shared_examples 'Gitlab::LegacyGithubImport unit-testing' do
     describe '#clean_up_restored_branches' do
       subject { described_class.new(project) }
 
@@ -188,7 +188,7 @@ describe Gitlab::GithubImport::Importer do
       end
 
       context 'when pull request stills open' do
-        let(:gh_pull_request) { Gitlab::GithubImport::PullRequestFormatter.new(project, pull_request) }
+        let(:gh_pull_request) { Gitlab::LegacyGithubImport::PullRequestFormatter.new(project, pull_request) }
 
         it 'does not remove branches' do
           expect(subject).not_to receive(:remove_branch)
@@ -197,7 +197,7 @@ describe Gitlab::GithubImport::Importer do
       end
 
       context 'when pull request is closed' do
-        let(:gh_pull_request) { Gitlab::GithubImport::PullRequestFormatter.new(project, closed_pull_request) }
+        let(:gh_pull_request) { Gitlab::LegacyGithubImport::PullRequestFormatter.new(project, closed_pull_request) }
 
         it 'does remove branches' do
           expect(subject).to receive(:remove_branch).at_least(2).times
@@ -262,14 +262,14 @@ describe Gitlab::GithubImport::Importer do
     let(:repo_root) { 'https://github.com' }
     subject { described_class.new(project) }
 
-    it_behaves_like 'Gitlab::GithubImport::Importer#execute'
-    it_behaves_like 'Gitlab::GithubImport::Importer#execute an error occurs'
-    it_behaves_like 'Gitlab::GithubImport unit-testing'
+    it_behaves_like 'Gitlab::LegacyGithubImport::Importer#execute'
+    it_behaves_like 'Gitlab::LegacyGithubImport::Importer#execute an error occurs'
+    it_behaves_like 'Gitlab::LegacyGithubImport unit-testing'
 
     describe '#client' do
       it 'instantiates a Client' do
         allow(project).to receive(:import_data).and_return(double(credentials: credentials))
-        expect(Gitlab::GithubImport::Client).to receive(:new).with(
+        expect(Gitlab::LegacyGithubImport::Client).to receive(:new).with(
           credentials[:user],
           {}
         )
@@ -288,16 +288,16 @@ describe Gitlab::GithubImport::Importer do
       project.update(import_type: 'gitea', import_url: "#{repo_root}/foo/group/project.git")
     end
 
-    it_behaves_like 'Gitlab::GithubImport::Importer#execute' do
+    it_behaves_like 'Gitlab::LegacyGithubImport::Importer#execute' do
       let(:expected_not_called) { [:import_releases] }
     end
-    it_behaves_like 'Gitlab::GithubImport::Importer#execute an error occurs'
-    it_behaves_like 'Gitlab::GithubImport unit-testing'
+    it_behaves_like 'Gitlab::LegacyGithubImport::Importer#execute an error occurs'
+    it_behaves_like 'Gitlab::LegacyGithubImport unit-testing'
 
     describe '#client' do
       it 'instantiates a Client' do
         allow(project).to receive(:import_data).and_return(double(credentials: credentials))
-        expect(Gitlab::GithubImport::Client).to receive(:new).with(
+        expect(Gitlab::LegacyGithubImport::Client).to receive(:new).with(
           credentials[:user],
           { host: "#{repo_root}:443/foo", api_version: 'v1' }
         )
diff --git a/spec/lib/gitlab/github_import/issuable_formatter_spec.rb b/spec/lib/gitlab/legacy_github_import/issuable_formatter_spec.rb
index 05294d227bd..3b5d8945344 100644
--- a/spec/lib/gitlab/github_import/issuable_formatter_spec.rb
+++ b/spec/lib/gitlab/legacy_github_import/issuable_formatter_spec.rb
@@ -1,6 +1,6 @@
 require 'spec_helper'
 
-describe Gitlab::GithubImport::IssuableFormatter do
+describe Gitlab::LegacyGithubImport::IssuableFormatter do
   let(:raw_data) do
     double(number: 42)
   end
diff --git a/spec/lib/gitlab/github_import/issue_formatter_spec.rb b/spec/lib/gitlab/legacy_github_import/issue_formatter_spec.rb
index 0fc56d92aa6..1a4d5dbfb70 100644
--- a/spec/lib/gitlab/github_import/issue_formatter_spec.rb
+++ b/spec/lib/gitlab/legacy_github_import/issue_formatter_spec.rb
@@ -1,6 +1,6 @@
 require 'spec_helper'
 
-describe Gitlab::GithubImport::IssueFormatter do
+describe Gitlab::LegacyGithubImport::IssueFormatter do
   let(:client) { double }
   let!(:project) { create(:project, namespace: create(:namespace, path: 'octocat')) }
   let(:octocat) { double(id: 123456, login: 'octocat', email: 'octocat@example.com') }
@@ -30,7 +30,7 @@ describe Gitlab::GithubImport::IssueFormatter do
     allow(client).to receive(:user).and_return(octocat)
   end
 
-  shared_examples 'Gitlab::GithubImport::IssueFormatter#attributes' do
+  shared_examples 'Gitlab::LegacyGithubImport::IssueFormatter#attributes' do
     context 'when issue is open' do
       let(:raw_data) { double(base_data.merge(state: 'open')) }
 
@@ -135,7 +135,7 @@ describe Gitlab::GithubImport::IssueFormatter do
     end
   end
 
-  shared_examples 'Gitlab::GithubImport::IssueFormatter#number' do
+  shared_examples 'Gitlab::LegacyGithubImport::IssueFormatter#number' do
     let(:raw_data) { double(base_data.merge(number: 1347)) }
 
     it 'returns issue number' do
@@ -144,8 +144,8 @@ describe Gitlab::GithubImport::IssueFormatter do
   end
 
   context 'when importing a GitHub project' do
-    it_behaves_like 'Gitlab::GithubImport::IssueFormatter#attributes'
-    it_behaves_like 'Gitlab::GithubImport::IssueFormatter#number'
+    it_behaves_like 'Gitlab::LegacyGithubImport::IssueFormatter#attributes'
+    it_behaves_like 'Gitlab::LegacyGithubImport::IssueFormatter#number'
   end
 
   context 'when importing a Gitea project' do
@@ -153,8 +153,8 @@ describe Gitlab::GithubImport::IssueFormatter do
       project.update(import_type: 'gitea')
     end
 
-    it_behaves_like 'Gitlab::GithubImport::IssueFormatter#attributes'
-    it_behaves_like 'Gitlab::GithubImport::IssueFormatter#number'
+    it_behaves_like 'Gitlab::LegacyGithubImport::IssueFormatter#attributes'
+    it_behaves_like 'Gitlab::LegacyGithubImport::IssueFormatter#number'
   end
 
   describe '#has_comments?' do
diff --git a/spec/lib/gitlab/github_import/label_formatter_spec.rb b/spec/lib/gitlab/legacy_github_import/label_formatter_spec.rb
index 83fdd2cc415..0d1d04f1bf6 100644
--- a/spec/lib/gitlab/github_import/label_formatter_spec.rb
+++ b/spec/lib/gitlab/legacy_github_import/label_formatter_spec.rb
@@ -1,6 +1,6 @@
 require 'spec_helper'
 
-describe Gitlab::GithubImport::LabelFormatter do
+describe Gitlab::LegacyGithubImport::LabelFormatter do
   let(:project) { create(:project) }
   let(:raw) { double(name: 'improvements', color: 'e6e6e6') }
 
diff --git a/spec/lib/gitlab/github_import/milestone_formatter_spec.rb b/spec/lib/gitlab/legacy_github_import/milestone_formatter_spec.rb
index 683fa51b78e..1db4bbb568c 100644
--- a/spec/lib/gitlab/github_import/milestone_formatter_spec.rb
+++ b/spec/lib/gitlab/legacy_github_import/milestone_formatter_spec.rb
@@ -1,6 +1,6 @@
 require 'spec_helper'
 
-describe Gitlab::GithubImport::MilestoneFormatter do
+describe Gitlab::LegacyGithubImport::MilestoneFormatter do
   let(:project) { create(:project) }
   let(:created_at) { DateTime.strptime('2011-01-26T19:01:12Z') }
   let(:updated_at) { DateTime.strptime('2011-01-27T19:01:12Z') }
@@ -19,7 +19,7 @@ describe Gitlab::GithubImport::MilestoneFormatter do
 
   subject(:formatter) { described_class.new(project, raw_data) }
 
-  shared_examples 'Gitlab::GithubImport::MilestoneFormatter#attributes' do
+  shared_examples 'Gitlab::LegacyGithubImport::MilestoneFormatter#attributes' do
     let(:data) { base_data.merge(iid_attr => 1347) }
 
     context 'when milestone is open' do
@@ -82,7 +82,7 @@ describe Gitlab::GithubImport::MilestoneFormatter do
   end
 
   context 'when importing a GitHub project' do
-    it_behaves_like 'Gitlab::GithubImport::MilestoneFormatter#attributes'
+    it_behaves_like 'Gitlab::LegacyGithubImport::MilestoneFormatter#attributes'
   end
 
   context 'when importing a Gitea project' do
@@ -91,6 +91,6 @@ describe Gitlab::GithubImport::MilestoneFormatter do
       project.update(import_type: 'gitea')
     end
 
-    it_behaves_like 'Gitlab::GithubImport::MilestoneFormatter#attributes'
+    it_behaves_like 'Gitlab::LegacyGithubImport::MilestoneFormatter#attributes'
   end
 end
diff --git a/spec/lib/gitlab/github_import/project_creator_spec.rb b/spec/lib/gitlab/legacy_github_import/project_creator_spec.rb
index 948e7469a18..737c9a624e0 100644
--- a/spec/lib/gitlab/github_import/project_creator_spec.rb
+++ b/spec/lib/gitlab/legacy_github_import/project_creator_spec.rb
@@ -1,6 +1,6 @@
 require 'spec_helper'
 
-describe Gitlab::GithubImport::ProjectCreator do
+describe Gitlab::LegacyGithubImport::ProjectCreator do
   let(:user) { create(:user) }
   let(:namespace) { create(:group, owner: user) }
 
diff --git a/spec/lib/gitlab/github_import/pull_request_formatter_spec.rb b/spec/lib/gitlab/legacy_github_import/pull_request_formatter_spec.rb
index 2e42f6239b7..267a41e3f32 100644
--- a/spec/lib/gitlab/github_import/pull_request_formatter_spec.rb
+++ b/spec/lib/gitlab/legacy_github_import/pull_request_formatter_spec.rb
@@ -1,6 +1,6 @@
 require 'spec_helper'
 
-describe Gitlab::GithubImport::PullRequestFormatter do
+describe Gitlab::LegacyGithubImport::PullRequestFormatter do
   let(:client) { double }
   let(:project) { create(:project, :repository) }
   let(:source_sha) { create(:commit, project: project).id }
@@ -44,7 +44,7 @@ describe Gitlab::GithubImport::PullRequestFormatter do
     allow(client).to receive(:user).and_return(octocat)
   end
 
-  shared_examples 'Gitlab::GithubImport::PullRequestFormatter#attributes' do
+  shared_examples 'Gitlab::LegacyGithubImport::PullRequestFormatter#attributes' do
     context 'when pull request is open' do
       let(:raw_data) { double(base_data.merge(state: 'open')) }
 
@@ -189,7 +189,7 @@ describe Gitlab::GithubImport::PullRequestFormatter do
     end
   end
 
-  shared_examples 'Gitlab::GithubImport::PullRequestFormatter#number' do
+  shared_examples 'Gitlab::LegacyGithubImport::PullRequestFormatter#number' do
     let(:raw_data) { double(base_data) }
 
     it 'returns pull request number' do
@@ -197,7 +197,7 @@ describe Gitlab::GithubImport::PullRequestFormatter do
     end
   end
 
-  shared_examples 'Gitlab::GithubImport::PullRequestFormatter#source_branch_name' do
+  shared_examples 'Gitlab::LegacyGithubImport::PullRequestFormatter#source_branch_name' do
     context 'when source branch exists' do
       let(:raw_data) { double(base_data) }
 
@@ -231,7 +231,7 @@ describe Gitlab::GithubImport::PullRequestFormatter do
     end
   end
 
-  shared_examples 'Gitlab::GithubImport::PullRequestFormatter#target_branch_name' do
+  shared_examples 'Gitlab::LegacyGithubImport::PullRequestFormatter#target_branch_name' do
     context 'when target branch exists' do
       let(:raw_data) { double(base_data) }
 
@@ -250,10 +250,10 @@ describe Gitlab::GithubImport::PullRequestFormatter do
   end
 
   context 'when importing a GitHub project' do
-    it_behaves_like 'Gitlab::GithubImport::PullRequestFormatter#attributes'
-    it_behaves_like 'Gitlab::GithubImport::PullRequestFormatter#number'
-    it_behaves_like 'Gitlab::GithubImport::PullRequestFormatter#source_branch_name'
-    it_behaves_like 'Gitlab::GithubImport::PullRequestFormatter#target_branch_name'
+    it_behaves_like 'Gitlab::LegacyGithubImport::PullRequestFormatter#attributes'
+    it_behaves_like 'Gitlab::LegacyGithubImport::PullRequestFormatter#number'
+    it_behaves_like 'Gitlab::LegacyGithubImport::PullRequestFormatter#source_branch_name'
+    it_behaves_like 'Gitlab::LegacyGithubImport::PullRequestFormatter#target_branch_name'
   end
 
   context 'when importing a Gitea project' do
@@ -261,10 +261,10 @@ describe Gitlab::GithubImport::PullRequestFormatter do
       project.update(import_type: 'gitea')
     end
 
-    it_behaves_like 'Gitlab::GithubImport::PullRequestFormatter#attributes'
-    it_behaves_like 'Gitlab::GithubImport::PullRequestFormatter#number'
-    it_behaves_like 'Gitlab::GithubImport::PullRequestFormatter#source_branch_name'
-    it_behaves_like 'Gitlab::GithubImport::PullRequestFormatter#target_branch_name'
+    it_behaves_like 'Gitlab::LegacyGithubImport::PullRequestFormatter#attributes'
+    it_behaves_like 'Gitlab::LegacyGithubImport::PullRequestFormatter#number'
+    it_behaves_like 'Gitlab::LegacyGithubImport::PullRequestFormatter#source_branch_name'
+    it_behaves_like 'Gitlab::LegacyGithubImport::PullRequestFormatter#target_branch_name'
   end
 
   describe '#valid?' do
diff --git a/spec/lib/gitlab/github_import/release_formatter_spec.rb b/spec/lib/gitlab/legacy_github_import/release_formatter_spec.rb
index 926bf725d6a..082e3b36dd0 100644
--- a/spec/lib/gitlab/github_import/release_formatter_spec.rb
+++ b/spec/lib/gitlab/legacy_github_import/release_formatter_spec.rb
@@ -1,6 +1,6 @@
 require 'spec_helper'
 
-describe Gitlab::GithubImport::ReleaseFormatter do
+describe Gitlab::LegacyGithubImport::ReleaseFormatter do
   let!(:project) { create(:project, namespace: create(:namespace, path: 'octocat')) }
   let(:octocat) { double(id: 123456, login: 'octocat') }
   let(:created_at) { DateTime.strptime('2011-01-26T19:01:12Z') }
diff --git a/spec/lib/gitlab/github_import/user_formatter_spec.rb b/spec/lib/gitlab/legacy_github_import/user_formatter_spec.rb
index 98e3a7c28b9..3cd096eb0ad 100644
--- a/spec/lib/gitlab/github_import/user_formatter_spec.rb
+++ b/spec/lib/gitlab/legacy_github_import/user_formatter_spec.rb
@@ -1,6 +1,6 @@
 require 'spec_helper'
 
-describe Gitlab::GithubImport::UserFormatter do
+describe Gitlab::LegacyGithubImport::UserFormatter do
   let(:client) { double }
   let(:octocat) { double(id: 123456, login: 'octocat', email: 'octocat@example.com') }
 
diff --git a/spec/lib/gitlab/github_import/wiki_formatter_spec.rb b/spec/lib/gitlab/legacy_github_import/wiki_formatter_spec.rb
index 2662cc20b32..7723533aee2 100644
--- a/spec/lib/gitlab/github_import/wiki_formatter_spec.rb
+++ b/spec/lib/gitlab/legacy_github_import/wiki_formatter_spec.rb
@@ -1,6 +1,6 @@
 require 'spec_helper'
 
-describe Gitlab::GithubImport::WikiFormatter do
+describe Gitlab::LegacyGithubImport::WikiFormatter do
   let(:project) do
     create(:project,
            namespace: create(:namespace, path: 'gitlabhq'),
diff --git a/spec/lib/gitlab/metrics/background_transaction_spec.rb b/spec/lib/gitlab/metrics/background_transaction_spec.rb
new file mode 100644
index 00000000000..17445fe6de5
--- /dev/null
+++ b/spec/lib/gitlab/metrics/background_transaction_spec.rb
@@ -0,0 +1,19 @@
+require 'spec_helper'
+
+describe Gitlab::Metrics::BackgroundTransaction do
+  let(:test_worker_class) { double(:class, name: 'TestWorker') }
+
+  subject { described_class.new(test_worker_class) }
+
+  describe '#action' do
+    it 'returns transaction action name' do
+      expect(subject.action).to eq('TestWorker#perform')
+    end
+  end
+
+  describe '#label' do
+    it 'returns labels based on class name' do
+      expect(subject.labels).to eq(controller: 'TestWorker', action: 'perform')
+    end
+  end
+end
diff --git a/spec/lib/gitlab/metrics/instrumentation_spec.rb b/spec/lib/gitlab/metrics/instrumentation_spec.rb
index 4b19ee19103..977bc250049 100644
--- a/spec/lib/gitlab/metrics/instrumentation_spec.rb
+++ b/spec/lib/gitlab/metrics/instrumentation_spec.rb
@@ -1,7 +1,8 @@
 require 'spec_helper'
 
 describe Gitlab::Metrics::Instrumentation do
-  let(:transaction) { Gitlab::Metrics::Transaction.new }
+  let(:env) { {} }
+  let(:transaction) { Gitlab::Metrics::WebTransaction.new(env) }
 
   before do
     @dummy = Class.new do
diff --git a/spec/lib/gitlab/metrics/method_call_spec.rb b/spec/lib/gitlab/metrics/method_call_spec.rb
index a247f03b2da..f1e9e414e0d 100644
--- a/spec/lib/gitlab/metrics/method_call_spec.rb
+++ b/spec/lib/gitlab/metrics/method_call_spec.rb
@@ -1,7 +1,8 @@
 require 'spec_helper'
 
 describe Gitlab::Metrics::MethodCall do
-  let(:method_call) { described_class.new('Foo#bar', 'foo') }
+  let(:transaction) { double(:transaction, labels: {}) }
+  let(:method_call) { described_class.new('Foo#bar', :Foo, '#bar', transaction) }
 
   describe '#measure' do
     it 'measures the performance of the supplied block' do
@@ -11,6 +12,18 @@ describe Gitlab::Metrics::MethodCall do
       expect(method_call.cpu_time).to be_a_kind_of(Numeric)
       expect(method_call.call_count).to eq(1)
     end
+
+    it 'observes the performance of the supplied block' do
+      expect(described_class.call_real_duration_histogram)
+        .to receive(:observe)
+              .with({ module: :Foo, method: '#bar' }, be_a_kind_of(Numeric))
+
+      expect(described_class.call_cpu_duration_histogram)
+        .to receive(:observe)
+              .with({ module: :Foo, method: '#bar' }, be_a_kind_of(Numeric))
+
+      method_call.measure { 'foo' }
+    end
   end
 
   describe '#to_metric' do
@@ -19,7 +32,7 @@ describe Gitlab::Metrics::MethodCall do
       metric = method_call.to_metric
 
       expect(metric).to be_an_instance_of(Gitlab::Metrics::Metric)
-      expect(metric.series).to eq('foo')
+      expect(metric.series).to eq('rails_method_calls')
 
       expect(metric.values[:duration]).to be_a_kind_of(Numeric)
       expect(metric.values[:cpu_duration]).to be_a_kind_of(Numeric)
diff --git a/spec/lib/gitlab/metrics/rack_middleware_spec.rb b/spec/lib/gitlab/metrics/rack_middleware_spec.rb
index ec415f2bd85..b84387204ee 100644
--- a/spec/lib/gitlab/metrics/rack_middleware_spec.rb
+++ b/spec/lib/gitlab/metrics/rack_middleware_spec.rb
@@ -18,34 +18,6 @@ describe Gitlab::Metrics::RackMiddleware do
       expect(middleware.call(env)).to eq('yay')
     end
 
-    it 'tags a transaction with the name and action of a controller' do
-      klass      = double(:klass, name: 'TestController', content_type: 'text/html')
-      controller = double(:controller, class: klass, action_name: 'show')
-
-      env['action_controller.instance'] = controller
-
-      allow(app).to receive(:call).with(env)
-
-      expect(middleware).to receive(:tag_controller)
-        .with(an_instance_of(Gitlab::Metrics::Transaction), env)
-
-      middleware.call(env)
-    end
-
-    it 'tags a transaction with the method and path of the route in the grape endpoint' do
-      route    = double(:route, request_method: "GET", path: "/:version/projects/:id/archive(.:format)")
-      endpoint = double(:endpoint, route: route)
-
-      env['api.endpoint'] = endpoint
-
-      allow(app).to receive(:call).with(env)
-
-      expect(middleware).to receive(:tag_endpoint)
-        .with(an_instance_of(Gitlab::Metrics::Transaction), env)
-
-      middleware.call(env)
-    end
-
     it 'tracks any raised exceptions' do
       expect(app).to receive(:call).with(env).and_raise(RuntimeError)
 
@@ -60,7 +32,7 @@ describe Gitlab::Metrics::RackMiddleware do
     let(:transaction) { middleware.transaction_from_env(env) }
 
     it 'returns a Transaction' do
-      expect(transaction).to be_an_instance_of(Gitlab::Metrics::Transaction)
+      expect(transaction).to be_an_instance_of(Gitlab::Metrics::WebTransaction)
     end
 
     it 'stores the request method and URI in the transaction as values' do
@@ -84,58 +56,4 @@ describe Gitlab::Metrics::RackMiddleware do
       end
     end
   end
-
-  describe '#tag_controller' do
-    let(:transaction) { middleware.transaction_from_env(env) }
-    let(:content_type) { 'text/html' }
-
-    before do
-      klass      = double(:klass, name: 'TestController')
-      controller = double(:controller, class: klass, action_name: 'show', content_type: content_type)
-
-      env['action_controller.instance'] = controller
-    end
-
-    it 'tags a transaction with the name and action of a controller' do
-      middleware.tag_controller(transaction, env)
-
-      expect(transaction.action).to eq('TestController#show')
-    end
-
-    context 'when the response content type is not :html' do
-      let(:content_type) { 'application/json' }
-
-      it 'appends the mime type to the transaction action' do
-        middleware.tag_controller(transaction, env)
-
-        expect(transaction.action).to eq('TestController#show.json')
-      end
-    end
-  end
-
-  describe '#tag_endpoint' do
-    let(:transaction) { middleware.transaction_from_env(env) }
-
-    it 'tags a transaction with the method and path of the route in the grape endpount' do
-      route    = double(:route, request_method: "GET", path: "/:version/projects/:id/archive(.:format)")
-      endpoint = double(:endpoint, route: route)
-
-      env['api.endpoint'] = endpoint
-
-      middleware.tag_endpoint(transaction, env)
-
-      expect(transaction.action).to eq('Grape#GET /projects/:id/archive')
-    end
-
-    it 'does not tag a transaction if route infos are missing' do
-      endpoint = double(:endpoint)
-      allow(endpoint).to receive(:route).and_raise
-
-      env['api.endpoint'] = endpoint
-
-      middleware.tag_endpoint(transaction, env)
-
-      expect(transaction.action).to be_nil
-    end
-  end
 end
diff --git a/spec/lib/gitlab/metrics/influx_sampler_spec.rb b/spec/lib/gitlab/metrics/samplers/influx_sampler_spec.rb
index 999a9536d82..667e4747897 100644
--- a/spec/lib/gitlab/metrics/influx_sampler_spec.rb
+++ b/spec/lib/gitlab/metrics/samplers/influx_sampler_spec.rb
@@ -1,6 +1,6 @@
 require 'spec_helper'
 
-describe Gitlab::Metrics::InfluxSampler do
+describe Gitlab::Metrics::Samplers::InfluxSampler do
   let(:sampler) { described_class.new(5) }
 
   after do
diff --git a/spec/lib/gitlab/metrics/samplers/ruby_sampler_spec.rb b/spec/lib/gitlab/metrics/samplers/ruby_sampler_spec.rb
new file mode 100644
index 00000000000..53699327da1
--- /dev/null
+++ b/spec/lib/gitlab/metrics/samplers/ruby_sampler_spec.rb
@@ -0,0 +1,90 @@
+require 'spec_helper'
+
+describe Gitlab::Metrics::Samplers::RubySampler do
+  let(:sampler) { described_class.new(5) }
+
+  after do
+    Allocations.stop if Gitlab::Metrics.mri?
+  end
+
+  describe '#sample' do
+    it 'samples various statistics' do
+      expect(Gitlab::Metrics::System).to receive(:memory_usage)
+      expect(Gitlab::Metrics::System).to receive(:file_descriptor_count)
+      expect(sampler).to receive(:sample_objects)
+      expect(sampler).to receive(:sample_gc)
+
+      sampler.sample
+    end
+
+    it 'adds a metric containing the memory usage' do
+      expect(Gitlab::Metrics::System).to receive(:memory_usage)
+                                           .and_return(9000)
+
+      expect(sampler.metrics[:memory_usage]).to receive(:set)
+                                                  .with({}, 9000)
+                                                  .and_call_original
+
+      sampler.sample
+    end
+
+    it 'adds a metric containing the amount of open file descriptors' do
+      expect(Gitlab::Metrics::System).to receive(:file_descriptor_count)
+                                           .and_return(4)
+
+      expect(sampler.metrics[:file_descriptors]).to receive(:set)
+                                                      .with({}, 4)
+                                                      .and_call_original
+
+      sampler.sample
+    end
+
+    it 'clears any GC profiles' do
+      expect(GC::Profiler).to receive(:clear)
+
+      sampler.sample
+    end
+  end
+
+  describe '#sample_gc' do
+    it 'adds a metric containing garbage collection time statistics' do
+      expect(GC::Profiler).to receive(:total_time).and_return(0.24)
+
+      expect(sampler.metrics[:total_time]).to receive(:set)
+                                                .with({}, 240)
+                                                .and_call_original
+
+      sampler.sample
+    end
+
+    it 'adds a metric containing garbage collection statistics' do
+      GC.stat.keys.each do |key|
+        expect(sampler.metrics[key]).to receive(:set).with({}, anything).and_call_original
+      end
+
+      sampler.sample
+    end
+  end
+
+  if Gitlab::Metrics.mri?
+    describe '#sample_objects' do
+      it 'adds a metric containing the amount of allocated objects' do
+        expect(sampler.metrics[:objects_total]).to receive(:set)
+                                                     .with(include(class: anything), be > 0)
+                                                     .at_least(:once)
+                                                     .and_call_original
+
+        sampler.sample
+      end
+
+      it 'ignores classes without a name' do
+        expect(Allocations).to receive(:to_hash).and_return({ Class.new => 4 })
+
+        expect(sampler.metrics[:objects_total]).not_to receive(:set)
+                                                         .with(include(class: 'object_counts'), anything)
+
+        sampler.sample
+      end
+    end
+  end
+end
diff --git a/spec/lib/gitlab/metrics/unicorn_sampler_spec.rb b/spec/lib/gitlab/metrics/samplers/unicorn_sampler_spec.rb
index dc0d1f2e940..771b633a2b9 100644
--- a/spec/lib/gitlab/metrics/unicorn_sampler_spec.rb
+++ b/spec/lib/gitlab/metrics/samplers/unicorn_sampler_spec.rb
@@ -1,6 +1,6 @@
 require 'spec_helper'
 
-describe Gitlab::Metrics::UnicornSampler do
+describe Gitlab::Metrics::Samplers::UnicornSampler do
   subject { described_class.new(1.second) }
 
   describe '#sample' do
diff --git a/spec/lib/gitlab/metrics/sidekiq_middleware_spec.rb b/spec/lib/gitlab/metrics/sidekiq_middleware_spec.rb
index 0803ce42fac..ae1d8b47fe9 100644
--- a/spec/lib/gitlab/metrics/sidekiq_middleware_spec.rb
+++ b/spec/lib/gitlab/metrics/sidekiq_middleware_spec.rb
@@ -4,30 +4,35 @@ describe Gitlab::Metrics::SidekiqMiddleware do
   let(:middleware) { described_class.new }
   let(:message) { { 'args' => ['test'], 'enqueued_at' => Time.new(2016, 6, 23, 6, 59).to_f } }
 
-  def run(worker, message)
-    expect(Gitlab::Metrics::Transaction).to receive(:new)
-      .with('TestWorker#perform')
-      .and_call_original
-
-    expect_any_instance_of(Gitlab::Metrics::Transaction).to receive(:set)
-      .with(:sidekiq_queue_duration, instance_of(Float))
-
-    expect_any_instance_of(Gitlab::Metrics::Transaction).to receive(:finish)
-
-    middleware.call(worker, message, :test) { nil }
-  end
-
   describe '#call' do
     it 'tracks the transaction' do
       worker = double(:worker, class: double(:class, name: 'TestWorker'))
 
-      run(worker, message)
+      expect(Gitlab::Metrics::BackgroundTransaction).to receive(:new)
+        .with(worker.class)
+        .and_call_original
+
+      expect_any_instance_of(Gitlab::Metrics::Transaction).to receive(:set)
+        .with(:sidekiq_queue_duration, instance_of(Float))
+
+      expect_any_instance_of(Gitlab::Metrics::Transaction).to receive(:finish)
+
+      middleware.call(worker, message, :test) { nil }
     end
 
     it 'tracks the transaction (for messages without `enqueued_at`)' do
       worker = double(:worker, class: double(:class, name: 'TestWorker'))
 
-      run(worker, {})
+      expect(Gitlab::Metrics::BackgroundTransaction).to receive(:new)
+        .with(worker.class)
+        .and_call_original
+
+      expect_any_instance_of(Gitlab::Metrics::Transaction).to receive(:set)
+        .with(:sidekiq_queue_duration, instance_of(Float))
+
+      expect_any_instance_of(Gitlab::Metrics::Transaction).to receive(:finish)
+
+      middleware.call(worker, {}, :test) { nil }
     end
 
     it 'tracks any raised exceptions' do
@@ -45,18 +50,5 @@ describe Gitlab::Metrics::SidekiqMiddleware do
       expect { middleware.call(worker, message, :test) }
         .to raise_error(RuntimeError)
     end
-
-    it 'tags the metrics accordingly' do
-      tags = { one: 1, two: 2 }
-      worker = double(:worker, class: double(:class, name: 'TestWorker'))
-      allow(worker).to receive(:metrics_tags).and_return(tags)
-
-      tags.each do |tag, value|
-        expect_any_instance_of(Gitlab::Metrics::Transaction).to receive(:add_tag)
-          .with(tag, value)
-      end
-
-      run(worker, message)
-    end
   end
 end
diff --git a/spec/lib/gitlab/metrics/subscribers/action_view_spec.rb b/spec/lib/gitlab/metrics/subscribers/action_view_spec.rb
index e7b595405a8..eca75a4fac1 100644
--- a/spec/lib/gitlab/metrics/subscribers/action_view_spec.rb
+++ b/spec/lib/gitlab/metrics/subscribers/action_view_spec.rb
@@ -1,7 +1,8 @@
 require 'spec_helper'
 
 describe Gitlab::Metrics::Subscribers::ActionView do
-  let(:transaction) { Gitlab::Metrics::Transaction.new }
+  let(:env) { {} }
+  let(:transaction) { Gitlab::Metrics::WebTransaction.new(env) }
 
   let(:subscriber) { described_class.new }
 
@@ -29,5 +30,13 @@ describe Gitlab::Metrics::Subscribers::ActionView do
 
       subscriber.render_template(event)
     end
+
+    it 'observes view rendering time' do
+      expect(subscriber.send(:metric_view_rendering_duration_seconds))
+        .to receive(:observe)
+              .with({ view: 'app/views/x.html.haml' }, 2.1)
+
+      subscriber.render_template(event)
+    end
   end
 end
diff --git a/spec/lib/gitlab/metrics/subscribers/active_record_spec.rb b/spec/lib/gitlab/metrics/subscribers/active_record_spec.rb
index ce6587e993f..9b3698fb4a8 100644
--- a/spec/lib/gitlab/metrics/subscribers/active_record_spec.rb
+++ b/spec/lib/gitlab/metrics/subscribers/active_record_spec.rb
@@ -1,11 +1,12 @@
 require 'spec_helper'
 
 describe Gitlab::Metrics::Subscribers::ActiveRecord do
-  let(:transaction) { Gitlab::Metrics::Transaction.new }
+  let(:env) { {} }
+  let(:transaction) { Gitlab::Metrics::WebTransaction.new(env) }
   let(:subscriber)  { described_class.new }
 
   let(:event) do
-    double(:event, duration: 0.2,
+    double(:event, duration: 2,
                    payload:  { sql: 'SELECT * FROM users WHERE id = 10' })
   end
 
@@ -20,16 +21,24 @@ describe Gitlab::Metrics::Subscribers::ActiveRecord do
     end
 
     describe 'with a current transaction' do
+      it 'observes sql_duration metric' do
+        expect(subscriber).to receive(:current_transaction)
+                                .at_least(:once)
+                                .and_return(transaction)
+        expect(subscriber.send(:metric_sql_duration_seconds)).to receive(:observe).with({}, 0.002)
+        subscriber.sql(event)
+      end
+
       it 'increments the :sql_duration value' do
         expect(subscriber).to receive(:current_transaction)
           .at_least(:once)
           .and_return(transaction)
 
         expect(transaction).to receive(:increment)
-          .with(:sql_duration, 0.2)
+          .with(:sql_duration, 2, false)
 
         expect(transaction).to receive(:increment)
-          .with(:sql_count, 1)
+          .with(:sql_count, 1, false)
 
         subscriber.sql(event)
       end
diff --git a/spec/lib/gitlab/metrics/subscribers/rails_cache_spec.rb b/spec/lib/gitlab/metrics/subscribers/rails_cache_spec.rb
index f04dc8dcc02..58e28592cf9 100644
--- a/spec/lib/gitlab/metrics/subscribers/rails_cache_spec.rb
+++ b/spec/lib/gitlab/metrics/subscribers/rails_cache_spec.rb
@@ -1,15 +1,16 @@
 require 'spec_helper'
 
 describe Gitlab::Metrics::Subscribers::RailsCache do
-  let(:transaction) { Gitlab::Metrics::Transaction.new }
+  let(:env) { {} }
+  let(:transaction) { Gitlab::Metrics::WebTransaction.new(env) }
   let(:subscriber) { described_class.new }
 
   let(:event) { double(:event, duration: 15.2) }
 
   describe '#cache_read' do
     it 'increments the cache_read duration' do
-      expect(subscriber).to receive(:increment)
-        .with(:cache_read, event.duration)
+      expect(subscriber).to receive(:observe)
+                              .with(:read, event.duration)
 
       subscriber.cache_read(event)
     end
@@ -17,7 +18,7 @@ describe Gitlab::Metrics::Subscribers::RailsCache do
     context 'with a transaction' do
       before do
         allow(subscriber).to receive(:current_transaction)
-          .and_return(transaction)
+                               .and_return(transaction)
       end
 
       context 'with hit event' do
@@ -25,9 +26,9 @@ describe Gitlab::Metrics::Subscribers::RailsCache do
 
         it 'increments the cache_read_hit count' do
           expect(transaction).to receive(:increment)
-            .with(:cache_read_hit_count, 1)
+                                   .with(:cache_read_hit_count, 1, false)
           expect(transaction).to receive(:increment)
-            .with(any_args).at_least(1) # Other calls
+                                   .with(any_args).at_least(1) # Other calls
 
           subscriber.cache_read(event)
         end
@@ -37,7 +38,7 @@ describe Gitlab::Metrics::Subscribers::RailsCache do
 
           it 'does not increment cache read miss' do
             expect(transaction).not_to receive(:increment)
-              .with(:cache_read_hit_count, 1)
+                                         .with(:cache_read_hit_count, 1)
 
             subscriber.cache_read(event)
           end
@@ -49,9 +50,15 @@ describe Gitlab::Metrics::Subscribers::RailsCache do
 
         it 'increments the cache_read_miss count' do
           expect(transaction).to receive(:increment)
-            .with(:cache_read_miss_count, 1)
+                                   .with(:cache_read_miss_count, 1, false)
           expect(transaction).to receive(:increment)
-            .with(any_args).at_least(1) # Other calls
+                                   .with(any_args).at_least(1) # Other calls
+
+          subscriber.cache_read(event)
+        end
+
+        it 'increments the cache_read_miss total' do
+          expect(subscriber.send(:metric_cache_misses_total)).to receive(:increment).with({})
 
           subscriber.cache_read(event)
         end
@@ -61,7 +68,13 @@ describe Gitlab::Metrics::Subscribers::RailsCache do
 
           it 'does not increment cache read miss' do
             expect(transaction).not_to receive(:increment)
-              .with(:cache_read_miss_count, 1)
+                                         .with(:cache_read_miss_count, 1)
+
+            subscriber.cache_read(event)
+          end
+
+          it 'does not increment cache_read_miss total' do
+            expect(subscriber.send(:metric_cache_misses_total)).not_to receive(:increment).with({})
 
             subscriber.cache_read(event)
           end
@@ -71,27 +84,27 @@ describe Gitlab::Metrics::Subscribers::RailsCache do
   end
 
   describe '#cache_write' do
-    it 'increments the cache_write duration' do
-      expect(subscriber).to receive(:increment)
-        .with(:cache_write, event.duration)
+    it 'observes write duration' do
+      expect(subscriber).to receive(:observe)
+                              .with(:write, event.duration)
 
       subscriber.cache_write(event)
     end
   end
 
   describe '#cache_delete' do
-    it 'increments the cache_delete duration' do
-      expect(subscriber).to receive(:increment)
-        .with(:cache_delete, event.duration)
+    it 'observes delete duration' do
+      expect(subscriber).to receive(:observe)
+                              .with(:delete, event.duration)
 
       subscriber.cache_delete(event)
     end
   end
 
   describe '#cache_exist?' do
-    it 'increments the cache_exists duration' do
-      expect(subscriber).to receive(:increment)
-        .with(:cache_exists, event.duration)
+    it 'observes the exists duration' do
+      expect(subscriber).to receive(:observe)
+                              .with(:exists, event.duration)
 
       subscriber.cache_exist?(event)
     end
@@ -109,12 +122,12 @@ describe Gitlab::Metrics::Subscribers::RailsCache do
     context 'with a transaction' do
       before do
         allow(subscriber).to receive(:current_transaction)
-          .and_return(transaction)
+                               .and_return(transaction)
       end
 
       it 'increments the cache_read_hit count' do
         expect(transaction).to receive(:increment)
-          .with(:cache_read_hit_count, 1)
+                                 .with(:cache_read_hit_count, 1)
 
         subscriber.cache_fetch_hit(event)
       end
@@ -133,47 +146,61 @@ describe Gitlab::Metrics::Subscribers::RailsCache do
     context 'with a transaction' do
       before do
         allow(subscriber).to receive(:current_transaction)
-          .and_return(transaction)
+                               .and_return(transaction)
       end
 
       it 'increments the cache_fetch_miss count' do
         expect(transaction).to receive(:increment)
-          .with(:cache_read_miss_count, 1)
+                                 .with(:cache_read_miss_count, 1)
+
+        subscriber.cache_generate(event)
+      end
+
+      it 'increments the cache_read_miss total' do
+        expect(subscriber.send(:metric_cache_misses_total)).to receive(:increment).with({})
 
         subscriber.cache_generate(event)
       end
     end
   end
 
-  describe '#increment' do
+  describe '#observe' do
     context 'without a transaction' do
       it 'returns' do
         expect(transaction).not_to receive(:increment)
 
-        subscriber.increment(:foo, 15.2)
+        subscriber.observe(:foo, 15.2)
       end
     end
 
     context 'with a transaction' do
       before do
         allow(subscriber).to receive(:current_transaction)
-          .and_return(transaction)
+                               .and_return(transaction)
       end
 
       it 'increments the total and specific cache duration' do
         expect(transaction).to receive(:increment)
-          .with(:cache_duration, event.duration)
+                                 .with(:cache_duration, event.duration, false)
 
         expect(transaction).to receive(:increment)
-          .with(:cache_count, 1)
+                                 .with(:cache_count, 1, false)
 
         expect(transaction).to receive(:increment)
-          .with(:cache_delete_duration, event.duration)
+                                 .with(:cache_delete_duration, event.duration, false)
 
         expect(transaction).to receive(:increment)
-          .with(:cache_delete_count, 1)
+                                 .with(:cache_delete_count, 1, false)
+
+        subscriber.observe(:delete, event.duration)
+      end
+
+      it 'observes cache metric' do
+        expect(subscriber.send(:metric_cache_operation_duration_seconds))
+          .to receive(:observe)
+                .with(transaction.labels.merge(operation: :delete), event.duration / 1000.0)
 
-        subscriber.increment(:cache_delete, event.duration)
+        subscriber.observe(:delete, event.duration)
       end
     end
   end
diff --git a/spec/lib/gitlab/metrics/transaction_spec.rb b/spec/lib/gitlab/metrics/web_transaction_spec.rb
index 3779af81512..1d162f53a13 100644
--- a/spec/lib/gitlab/metrics/transaction_spec.rb
+++ b/spec/lib/gitlab/metrics/web_transaction_spec.rb
@@ -1,7 +1,8 @@
 require 'spec_helper'
 
-describe Gitlab::Metrics::Transaction do
-  let(:transaction) { described_class.new }
+describe Gitlab::Metrics::WebTransaction do
+  let(:env) { {} }
+  let(:transaction) { described_class.new(env) }
 
   describe '#duration' do
     it 'returns the duration of a transaction in seconds' do
@@ -48,7 +49,7 @@ describe Gitlab::Metrics::Transaction do
 
   describe '#method_call_for' do
     it 'returns a MethodCall' do
-      method = transaction.method_call_for('Foo#bar')
+      method = transaction.method_call_for('Foo#bar', :Foo, '#bar')
 
       expect(method).to be_an_instance_of(Gitlab::Metrics::MethodCall)
     end
@@ -85,14 +86,6 @@ describe Gitlab::Metrics::Transaction do
     end
   end
 
-  describe '#add_tag' do
-    it 'adds a tag' do
-      transaction.add_tag(:foo, 'bar')
-
-      expect(transaction.tags).to eq({ foo: 'bar' })
-    end
-  end
-
   describe '#finish' do
     it 'tracks the transaction details and submits them to Sidekiq' do
       expect(transaction).to receive(:track_self)
@@ -127,7 +120,7 @@ describe Gitlab::Metrics::Transaction do
     end
 
     it 'adds the action as a tag for every metric' do
-      transaction.action = 'Foo#bar'
+      allow(transaction).to receive(:labels).and_return(controller: 'Foo', action: 'bar')
       transaction.track_self
 
       hash = {
@@ -144,7 +137,8 @@ describe Gitlab::Metrics::Transaction do
     end
 
     it 'does not add an action tag for events' do
-      transaction.action = 'Foo#bar'
+      allow(transaction).to receive(:labels).and_return(controller: 'Foo', action: 'bar')
+
       transaction.add_event(:meow)
 
       hash = {
@@ -161,6 +155,61 @@ describe Gitlab::Metrics::Transaction do
     end
   end
 
+  describe '#labels' do
+    context 'when request goes to Grape endpoint' do
+      before do
+        route = double(:route, request_method: 'GET', path: '/:version/projects/:id/archive(.:format)')
+        endpoint = double(:endpoint, route: route)
+
+        env['api.endpoint'] = endpoint
+      end
+      it 'provides labels with the method and path of the route in the grape endpoint' do
+        expect(transaction.labels).to eq({ controller: 'Grape', action: 'GET /projects/:id/archive' })
+        expect(transaction.action).to eq('Grape#GET /projects/:id/archive')
+      end
+
+      it 'does not provide labels if route infos are missing' do
+        endpoint = double(:endpoint)
+        allow(endpoint).to receive(:route).and_raise
+
+        env['api.endpoint'] = endpoint
+
+        expect(transaction.labels).to eq({})
+        expect(transaction.action).to be_nil
+      end
+    end
+
+    context 'when request goes to ActionController' do
+      let(:content_type) { 'text/html' }
+
+      before do
+        klass = double(:klass, name: 'TestController')
+        controller = double(:controller, class: klass, action_name: 'show', content_type: content_type)
+
+        env['action_controller.instance'] = controller
+      end
+
+      it 'tags a transaction with the name and action of a controller' do
+        expect(transaction.labels).to eq({ controller: 'TestController', action: 'show' })
+        expect(transaction.action).to eq('TestController#show')
+      end
+
+      context 'when the response content type is not :html' do
+        let(:content_type) { 'application/json' }
+
+        it 'appends the mime type to the transaction action' do
+          expect(transaction.labels).to eq({ controller: 'TestController', action: 'show.json' })
+          expect(transaction.action).to eq('TestController#show.json')
+        end
+      end
+    end
+
+    it 'returns no labels when no route information is present in env' do
+      expect(transaction.labels).to eq({})
+      expect(transaction.action).to eq(nil)
+    end
+  end
+
   describe '#add_event' do
     it 'adds a metric' do
       transaction.add_event(:meow)
diff --git a/spec/lib/gitlab/metrics_spec.rb b/spec/lib/gitlab/metrics_spec.rb
index 599b8807d8d..1619fbd88b1 100644
--- a/spec/lib/gitlab/metrics_spec.rb
+++ b/spec/lib/gitlab/metrics_spec.rb
@@ -115,7 +115,7 @@ describe Gitlab::Metrics do
     end
 
     context 'with a transaction' do
-      let(:transaction) { Gitlab::Metrics::Transaction.new }
+      let(:transaction) { Gitlab::Metrics::WebTransaction.new({}) }
 
       before do
         allow(described_class).to receive(:current_transaction)
@@ -124,13 +124,13 @@ describe Gitlab::Metrics do
 
       it 'adds a metric to the current transaction' do
         expect(transaction).to receive(:increment)
-          .with('foo_real_time', a_kind_of(Numeric))
+                                 .with('foo_real_time', a_kind_of(Numeric), false)
 
         expect(transaction).to receive(:increment)
-          .with('foo_cpu_time', a_kind_of(Numeric))
+                                 .with('foo_cpu_time', a_kind_of(Numeric), false)
 
         expect(transaction).to receive(:increment)
-          .with('foo_call_count', 1)
+                                 .with('foo_call_count', 1, false)
 
         described_class.measure(:foo) { 10 }
       end
@@ -143,31 +143,6 @@ describe Gitlab::Metrics do
     end
   end
 
-  describe '.tag_transaction' do
-    context 'without a transaction' do
-      it 'does nothing' do
-        expect_any_instance_of(Gitlab::Metrics::Transaction)
-          .not_to receive(:add_tag)
-
-        described_class.tag_transaction(:foo, 'bar')
-      end
-    end
-
-    context 'with a transaction' do
-      let(:transaction) { Gitlab::Metrics::Transaction.new }
-
-      it 'adds the tag to the transaction' do
-        expect(described_class).to receive(:current_transaction)
-          .and_return(transaction)
-
-        expect(transaction).to receive(:add_tag)
-          .with(:foo, 'bar')
-
-        described_class.tag_transaction(:foo, 'bar')
-      end
-    end
-  end
-
   describe '.action=' do
     context 'without a transaction' do
       it 'does nothing' do
@@ -180,7 +155,7 @@ describe Gitlab::Metrics do
 
     context 'with a transaction' do
       it 'sets the action of a transaction' do
-        trans = Gitlab::Metrics::Transaction.new
+        trans = Gitlab::Metrics::WebTransaction.new({})
 
         expect(described_class).to receive(:current_transaction)
           .and_return(trans)
@@ -210,7 +185,7 @@ describe Gitlab::Metrics do
 
     context 'with a transaction' do
       it 'adds an event' do
-        transaction = Gitlab::Metrics::Transaction.new
+        transaction = Gitlab::Metrics::WebTransaction.new({})
 
         expect(transaction).to receive(:add_event).with(:meow)
 
@@ -224,7 +199,7 @@ describe Gitlab::Metrics do
 
   shared_examples 'prometheus metrics API' do
     describe '#counter' do
-      subject { described_class.counter(:couter, 'doc') }
+      subject { described_class.counter(:counter, 'doc') }
 
       describe '#increment' do
         it 'successfully calls #increment without arguments' do
@@ -280,7 +255,7 @@ describe Gitlab::Metrics do
     it_behaves_like 'prometheus metrics API'
 
     describe '#null_metric' do
-      subject { described_class.provide_metric(:test) }
+      subject { described_class.send(:provide_metric, :test) }
 
       it { is_expected.to be_a(Gitlab::Metrics::NullMetric) }
     end
@@ -321,7 +296,7 @@ describe Gitlab::Metrics do
     it_behaves_like 'prometheus metrics API'
 
     describe '#null_metric' do
-      subject { described_class.provide_metric(:test) }
+      subject { described_class.send(:provide_metric, :test) }
 
       it { is_expected.to be_nil }
     end
diff --git a/spec/lib/gitlab/middleware/rails_queue_duration_spec.rb b/spec/lib/gitlab/middleware/rails_queue_duration_spec.rb
index 88107536c9e..14f2c3cb86f 100644
--- a/spec/lib/gitlab/middleware/rails_queue_duration_spec.rb
+++ b/spec/lib/gitlab/middleware/rails_queue_duration_spec.rb
@@ -4,7 +4,7 @@ describe Gitlab::Middleware::RailsQueueDuration do
   let(:app) { double(:app) }
   let(:middleware) { described_class.new(app) }
   let(:env) { {} }
-  let(:transaction) { double(:transaction) }
+  let(:transaction) { Gitlab::Metrics::WebTransaction.new(env) }
 
   before do
     expect(app).to receive(:call).with(env).and_return('yay')
@@ -30,6 +30,16 @@ describe Gitlab::Middleware::RailsQueueDuration do
         expect(transaction).to receive(:set).with(:rails_queue_duration, an_instance_of(Float))
         expect(middleware.call(env)).to eq('yay')
       end
+
+      it 'observes rails queue duration metrics and calls the app when the header is present' do
+        env['HTTP_GITLAB_WORKHORSE_PROXY_START'] = '2000000000'
+
+        expect(middleware.send(:metric_rails_queue_duration_seconds)).to receive(:observe).with(transaction.labels, 1)
+
+        Timecop.freeze(Time.at(3)) do
+          expect(middleware.call(env)).to eq('yay')
+        end
+      end
     end
   end
 end
diff --git a/spec/lib/gitlab/middleware/read_only_spec.rb b/spec/lib/gitlab/middleware/read_only_spec.rb
index 86be06ff595..b14735943a5 100644
--- a/spec/lib/gitlab/middleware/read_only_spec.rb
+++ b/spec/lib/gitlab/middleware/read_only_spec.rb
@@ -91,13 +91,6 @@ describe Gitlab::Middleware::ReadOnly do
     end
 
     context 'whitelisted requests' do
-      it 'expects DELETE request to logout to be allowed' do
-        response = request.delete('/users/sign_out')
-
-        expect(response).not_to be_a_redirect
-        expect(subject).not_to disallow_request
-      end
-
       it 'expects a POST internal request to be allowed' do
         response = request.post("/api/#{API::API.version}/internal")
 
diff --git a/spec/lib/gitlab/path_regex_spec.rb b/spec/lib/gitlab/path_regex_spec.rb
index ee63c9338c5..0ae90069b7f 100644
--- a/spec/lib/gitlab/path_regex_spec.rb
+++ b/spec/lib/gitlab/path_regex_spec.rb
@@ -45,21 +45,16 @@ describe Gitlab::PathRegex do
       Found new routes that could cause conflicts with existing namespaced routes
       for groups or projects.
 
-      Add <#{missing_words.join(', ')}> to `Gitlab::PathRegex::#{constant_name}
-      to make sure no projects or namespaces can be created with those paths.
-
-      To rename any existing records with those paths you can use the
-      `Gitlab::Database::RenameReservedpathsMigration::<VERSION>.#{migration_helper}`
-      migration helper.
-
-      Make sure to make a note of the renamed records in the release blog post.
+      Nest <#{missing_words.join(', ')}> in a route containing `-`, that way
+      we know there will be no conflicts with groups or projects created with those
+      paths.
 
       MISSING
     end
 
     if additional_words.any?
       message += <<-ADDITIONAL
-      Why are <#{additional_words.join(', ')}> in `#{constant_name}`?
+      Is <#{additional_words.join(', ')}> in `#{constant_name}` required?
       If they are really required, update these specs to reflect that.
 
       ADDITIONAL
@@ -157,16 +152,7 @@ describe Gitlab::PathRegex do
   let(:paths_after_group_id) do
     group_routes.map do |route|
       route.gsub(STARTING_WITH_GROUP, '').split('/').first
-    end.uniq + ee_paths_after_group_id
-  end
-
-  let(:ee_paths_after_group_id) do
-    %w(analytics
-       ldap
-       ldap_group_links
-       notification_setting
-       audit_events
-       pipeline_quota hooks)
+    end.uniq
   end
 
   describe 'TOP_LEVEL_ROUTES' do
@@ -225,8 +211,6 @@ describe Gitlab::PathRegex do
 
     it 'accepts group routes' do
       expect(subject).to match('activity/')
-      expect(subject).to match('group_members/')
-      expect(subject).to match('labels/')
     end
 
     it 'is not case sensitive' do
@@ -258,8 +242,6 @@ describe Gitlab::PathRegex do
 
         it 'accepts group routes' do
           expect(subject).to match('activity/')
-          expect(subject).to match('group_members/')
-          expect(subject).to match('labels/')
         end
       end
 
@@ -280,8 +262,6 @@ describe Gitlab::PathRegex do
 
         it 'accepts group routes' do
           expect(subject).to match('activity/more/')
-          expect(subject).to match('group_members/more/')
-          expect(subject).to match('labels/more/')
         end
       end
     end
@@ -303,9 +283,7 @@ describe Gitlab::PathRegex do
         end
 
         it 'rejects group routes' do
-          expect(subject).not_to match('root/activity/')
-          expect(subject).not_to match('root/group_members/')
-          expect(subject).not_to match('root/labels/')
+          expect(subject).not_to match('root/-/')
         end
       end
 
@@ -325,9 +303,7 @@ describe Gitlab::PathRegex do
         end
 
         it 'rejects group routes' do
-          expect(subject).not_to match('root/activity/more/')
-          expect(subject).not_to match('root/group_members/more/')
-          expect(subject).not_to match('root/labels/more/')
+          expect(subject).not_to match('root/-/')
         end
       end
     end
@@ -360,9 +336,7 @@ describe Gitlab::PathRegex do
     end
 
     it 'accepts group routes' do
-      expect(subject).to match('activity/')
-      expect(subject).to match('group_members/')
-      expect(subject).to match('labels/')
+      expect(subject).to match('analytics/')
     end
 
     it 'is not case sensitive' do
@@ -393,9 +367,7 @@ describe Gitlab::PathRegex do
     end
 
     it 'accepts group routes' do
-      expect(subject).to match('root/activity/')
-      expect(subject).to match('root/group_members/')
-      expect(subject).to match('root/labels/')
+      expect(subject).to match('root/analytics/')
     end
 
     it 'is not case sensitive' do
diff --git a/spec/lib/gitlab/url_blocker_spec.rb b/spec/lib/gitlab/url_blocker_spec.rb
index f18823b61ef..d9b3c2350b1 100644
--- a/spec/lib/gitlab/url_blocker_spec.rb
+++ b/spec/lib/gitlab/url_blocker_spec.rb
@@ -20,6 +20,22 @@ describe Gitlab::UrlBlocker do
       expect(described_class.blocked_url?('https://gitlab.com:25/foo/foo.git')).to be true
     end
 
+    it 'returns true for alternative version of 127.0.0.1 (0177.1)' do
+      expect(described_class.blocked_url?('https://0177.1:65535/foo/foo.git')).to be true
+    end
+
+    it 'returns true for alternative version of 127.0.0.1 (0x7f.1)' do
+      expect(described_class.blocked_url?('https://0x7f.1:65535/foo/foo.git')).to be true
+    end
+
+    it 'returns true for alternative version of 127.0.0.1 (2130706433)' do
+      expect(described_class.blocked_url?('https://2130706433:65535/foo/foo.git')).to be true
+    end
+
+    it 'returns true for alternative version of 127.0.0.1 (127.000.000.001)' do
+      expect(described_class.blocked_url?('https://127.000.000.001:65535/foo/foo.git')).to be true
+    end
+
     it 'returns true for a non-alphanumeric hostname' do
       stub_resolv
 
diff --git a/spec/lib/gitlab/usage_data_spec.rb b/spec/lib/gitlab/usage_data_spec.rb
index a7b65e94706..a4c1113ae37 100644
--- a/spec/lib/gitlab/usage_data_spec.rb
+++ b/spec/lib/gitlab/usage_data_spec.rb
@@ -60,9 +60,9 @@ describe Gitlab::UsageData do
         deploy_keys
         deployments
         environments
-        gcp_clusters
-        gcp_clusters_enabled
-        gcp_clusters_disabled
+        clusters
+        clusters_enabled
+        clusters_disabled
         in_review_folder
         groups
         issues
diff --git a/spec/lib/gitlab/utils/strong_memoize_spec.rb b/spec/lib/gitlab/utils/strong_memoize_spec.rb
new file mode 100644
index 00000000000..4a104ab6d97
--- /dev/null
+++ b/spec/lib/gitlab/utils/strong_memoize_spec.rb
@@ -0,0 +1,52 @@
+require 'spec_helper'
+
+describe Gitlab::Utils::StrongMemoize do
+  let(:klass) do
+    struct = Struct.new(:value) do
+      def method_name
+        strong_memoize(:method_name) do
+          trace << value
+          value
+        end
+      end
+
+      def trace
+        @trace ||= []
+      end
+    end
+
+    struct.include(described_class)
+    struct
+  end
+
+  subject(:object) { klass.new(value) }
+
+  shared_examples 'caching the value' do
+    it 'only calls the block once' do
+      value0 = object.method_name
+      value1 = object.method_name
+
+      expect(value0).to eq(value)
+      expect(value1).to eq(value)
+      expect(object.trace).to contain_exactly(value)
+    end
+
+    it 'returns and defines the instance variable for the exact value' do
+      returned_value = object.method_name
+      memoized_value = object.instance_variable_get(:@method_name)
+
+      expect(returned_value).to eql(value)
+      expect(memoized_value).to eql(value)
+    end
+  end
+
+  describe '#strong_memoize' do
+    [nil, false, true, 'value', 0, [0]].each do |value|
+      context "with value #{value}" do
+        let(:value) { value }
+
+        it_behaves_like 'caching the value'
+      end
+    end
+  end
+end
diff --git a/spec/lib/google_api/cloud_platform/client_spec.rb b/spec/lib/google_api/cloud_platform/client_spec.rb
index acc5bd1da35..fac23dce44d 100644
--- a/spec/lib/google_api/cloud_platform/client_spec.rb
+++ b/spec/lib/google_api/cloud_platform/client_spec.rb
@@ -69,7 +69,7 @@ describe GoogleApi::CloudPlatform::Client do
 
     let(:cluster_name) { 'test-cluster' }
     let(:cluster_size) { 1 }
-    let(:machine_type) { 'n1-standard-4' }
+    let(:machine_type) { 'n1-standard-2' }
     let(:operation) { double }
 
     before do
diff --git a/spec/mailers/notify_spec.rb b/spec/mailers/notify_spec.rb
index c832cee965b..f942a22b6d1 100644
--- a/spec/mailers/notify_spec.rb
+++ b/spec/mailers/notify_spec.rb
@@ -783,7 +783,25 @@ describe Notify do
       shared_examples 'an email for a note on a diff discussion' do  |model|
         let(:note) { create(model, author: note_author) }
 
-        it "includes diffs with character-level highlighting" do
+        context 'when note is on image' do
+          before do
+            allow_any_instance_of(DiffDiscussion).to receive(:on_image?).and_return(true)
+          end
+
+          it 'does not include diffs with character-level highlighting' do
+            is_expected.not_to have_body_text '<span class="p">}</span></span>'
+          end
+
+          it 'ends the intro with a dot' do
+            is_expected.to have_body_text "#{note.diff_file.file_path}</a>."
+          end
+        end
+
+        it 'ends the intro with a colon' do
+          is_expected.to have_body_text "#{note.diff_file.file_path}</a>:"
+        end
+
+        it 'includes diffs with character-level highlighting' do
           is_expected.to have_body_text '<span class="p">}</span></span>'
         end
 
diff --git a/spec/migrations/migrate_gcp_clusters_to_new_clusters_architectures_spec.rb b/spec/migrations/migrate_gcp_clusters_to_new_clusters_architectures_spec.rb
new file mode 100644
index 00000000000..9f41534441b
--- /dev/null
+++ b/spec/migrations/migrate_gcp_clusters_to_new_clusters_architectures_spec.rb
@@ -0,0 +1,166 @@
+require 'spec_helper'
+require Rails.root.join('db', 'post_migrate', '20171013104327_migrate_gcp_clusters_to_new_clusters_architectures.rb')
+
+describe MigrateGcpClustersToNewClustersArchitectures, :migration do
+  let(:project) { create(:project) }
+  let(:user) { create(:user) }
+  let(:service) { create(:kubernetes_service, project: project) }
+
+  context 'when cluster is being created' do
+    let(:project_id) { project.id }
+    let(:user_id) { user.id }
+    let(:service_id) { service.id }
+    let(:status) { 2 } # creating
+    let(:gcp_cluster_size) { 1 }
+    let(:created_at) { "'2017-10-17 20:24:02'" }
+    let(:updated_at) { "'2017-10-17 20:28:44'" }
+    let(:enabled) { true }
+    let(:status_reason) { "''" }
+    let(:project_namespace) { "'sample-app'" }
+    let(:endpoint) { 'NULL' }
+    let(:ca_cert) { 'NULL' }
+    let(:encrypted_kubernetes_token) { 'NULL' }
+    let(:encrypted_kubernetes_token_iv) { 'NULL' }
+    let(:username) { 'NULL' }
+    let(:encrypted_password) { 'NULL' }
+    let(:encrypted_password_iv) { 'NULL' }
+    let(:gcp_project_id) { "'gcp_project_id'" }
+    let(:gcp_cluster_zone) { "'gcp_cluster_zone'" }
+    let(:gcp_cluster_name) { "'gcp_cluster_name'" }
+    let(:gcp_machine_type) { "'gcp_machine_type'" }
+    let(:gcp_operation_id) { 'NULL' }
+    let(:encrypted_gcp_token) { "'encrypted_gcp_token'" }
+    let(:encrypted_gcp_token_iv) { "'encrypted_gcp_token_iv'" }
+
+    let(:cluster) { Clusters::Cluster.last }
+    let(:cluster_id) { cluster.id }
+
+    before do
+      ActiveRecord::Base.connection.execute <<-SQL
+        INSERT INTO gcp_clusters (project_id, user_id, service_id, status, gcp_cluster_size, created_at, updated_at, enabled, status_reason, project_namespace, endpoint, ca_cert, encrypted_kubernetes_token, encrypted_kubernetes_token_iv, username, encrypted_password, encrypted_password_iv, gcp_project_id, gcp_cluster_zone, gcp_cluster_name, gcp_machine_type, gcp_operation_id, encrypted_gcp_token, encrypted_gcp_token_iv)
+        VALUES (#{project_id}, #{user_id}, #{service_id}, #{status}, #{gcp_cluster_size}, #{created_at}, #{updated_at}, #{enabled}, #{status_reason}, #{project_namespace}, #{endpoint}, #{ca_cert}, #{encrypted_kubernetes_token}, #{encrypted_kubernetes_token_iv}, #{username}, #{encrypted_password}, #{encrypted_password_iv}, #{gcp_project_id}, #{gcp_cluster_zone}, #{gcp_cluster_name}, #{gcp_machine_type}, #{gcp_operation_id}, #{encrypted_gcp_token}, #{encrypted_gcp_token_iv});
+      SQL
+    end
+
+    it 'correctly migrate to new clusters architectures' do
+      migrate!
+
+      expect(Clusters::Cluster.count).to eq(1)
+      expect(Clusters::Project.count).to eq(1)
+      expect(Clusters::Providers::Gcp.count).to eq(1)
+      expect(Clusters::Platforms::Kubernetes.count).to eq(1)
+
+      expect(cluster.user).to eq(user)
+      expect(cluster.enabled).to be_truthy
+      expect(cluster.name).to eq(gcp_cluster_name.delete!("'"))
+      expect(cluster.provider_type).to eq('gcp')
+      expect(cluster.platform_type).to eq('kubernetes')
+
+      expect(cluster.project).to eq(project)
+      expect(project.cluster).to eq(cluster)
+
+      expect(cluster.provider_gcp.cluster).to eq(cluster)
+      expect(cluster.provider_gcp.status).to eq(status)
+      expect(cluster.provider_gcp.status_reason).to eq(tr(status_reason))
+      expect(cluster.provider_gcp.gcp_project_id).to eq(tr(gcp_project_id))
+      expect(cluster.provider_gcp.zone).to eq(tr(gcp_cluster_zone))
+      expect(cluster.provider_gcp.num_nodes).to eq(gcp_cluster_size)
+      expect(cluster.provider_gcp.machine_type).to eq(tr(gcp_machine_type))
+      expect(cluster.provider_gcp.operation_id).to be_nil
+      expect(cluster.provider_gcp.endpoint).to be_nil
+      expect(cluster.provider_gcp.encrypted_access_token).to eq(tr(encrypted_gcp_token))
+      expect(cluster.provider_gcp.encrypted_access_token_iv).to eq(tr(encrypted_gcp_token_iv))
+
+      expect(cluster.platform_kubernetes.cluster).to eq(cluster)
+      expect(cluster.platform_kubernetes.api_url).to be_nil
+      expect(cluster.platform_kubernetes.ca_cert).to be_nil
+      expect(cluster.platform_kubernetes.namespace).to eq(tr(project_namespace))
+      expect(cluster.platform_kubernetes.username).to be_nil
+      expect(cluster.platform_kubernetes.encrypted_password).to be_nil
+      expect(cluster.platform_kubernetes.encrypted_password_iv).to be_nil
+      expect(cluster.platform_kubernetes.encrypted_token).to be_nil
+      expect(cluster.platform_kubernetes.encrypted_token_iv).to be_nil
+    end
+  end
+
+  context 'when cluster has been created' do
+    let(:project_id) { project.id }
+    let(:user_id) { user.id }
+    let(:service_id) { service.id }
+    let(:status) { 3 } # created
+    let(:gcp_cluster_size) { 1 }
+    let(:created_at) { "'2017-10-17 20:24:02'" }
+    let(:updated_at) { "'2017-10-17 20:28:44'" }
+    let(:enabled) { true }
+    let(:status_reason) { "'general error'" }
+    let(:project_namespace) { "'sample-app'" }
+    let(:endpoint) { "'111.111.111.111'" }
+    let(:ca_cert) { "'ca_cert'" }
+    let(:encrypted_kubernetes_token) { "'encrypted_kubernetes_token'" }
+    let(:encrypted_kubernetes_token_iv) { "'encrypted_kubernetes_token_iv'" }
+    let(:username) { "'username'" }
+    let(:encrypted_password) { "'encrypted_password'" }
+    let(:encrypted_password_iv) { "'encrypted_password_iv'" }
+    let(:gcp_project_id) { "'gcp_project_id'" }
+    let(:gcp_cluster_zone) { "'gcp_cluster_zone'" }
+    let(:gcp_cluster_name) { "'gcp_cluster_name'" }
+    let(:gcp_machine_type) { "'gcp_machine_type'" }
+    let(:gcp_operation_id) { "'gcp_operation_id'" }
+    let(:encrypted_gcp_token) { "'encrypted_gcp_token'" }
+    let(:encrypted_gcp_token_iv) { "'encrypted_gcp_token_iv'" }
+
+    let(:cluster) { Clusters::Cluster.last }
+    let(:cluster_id) { cluster.id }
+
+    before do
+      ActiveRecord::Base.connection.execute <<-SQL
+        INSERT INTO gcp_clusters (project_id, user_id, service_id, status, gcp_cluster_size, created_at, updated_at, enabled, status_reason, project_namespace, endpoint, ca_cert, encrypted_kubernetes_token, encrypted_kubernetes_token_iv, username, encrypted_password, encrypted_password_iv, gcp_project_id, gcp_cluster_zone, gcp_cluster_name, gcp_machine_type, gcp_operation_id, encrypted_gcp_token, encrypted_gcp_token_iv)
+        VALUES (#{project_id}, #{user_id}, #{service_id}, #{status}, #{gcp_cluster_size}, #{created_at}, #{updated_at}, #{enabled}, #{status_reason}, #{project_namespace}, #{endpoint}, #{ca_cert}, #{encrypted_kubernetes_token}, #{encrypted_kubernetes_token_iv}, #{username}, #{encrypted_password}, #{encrypted_password_iv}, #{gcp_project_id}, #{gcp_cluster_zone}, #{gcp_cluster_name}, #{gcp_machine_type}, #{gcp_operation_id}, #{encrypted_gcp_token}, #{encrypted_gcp_token_iv});
+      SQL
+    end
+
+    it 'correctly migrate to new clusters architectures' do
+      migrate!
+
+      expect(Clusters::Cluster.count).to eq(1)
+      expect(Clusters::Project.count).to eq(1)
+      expect(Clusters::Providers::Gcp.count).to eq(1)
+      expect(Clusters::Platforms::Kubernetes.count).to eq(1)
+
+      expect(cluster.user).to eq(user)
+      expect(cluster.enabled).to be_truthy
+      expect(cluster.name).to eq(tr(gcp_cluster_name))
+      expect(cluster.provider_type).to eq('gcp')
+      expect(cluster.platform_type).to eq('kubernetes')
+
+      expect(cluster.project).to eq(project)
+      expect(project.cluster).to eq(cluster)
+
+      expect(cluster.provider_gcp.cluster).to eq(cluster)
+      expect(cluster.provider_gcp.status).to eq(status)
+      expect(cluster.provider_gcp.status_reason).to eq(tr(status_reason))
+      expect(cluster.provider_gcp.gcp_project_id).to eq(tr(gcp_project_id))
+      expect(cluster.provider_gcp.zone).to eq(tr(gcp_cluster_zone))
+      expect(cluster.provider_gcp.num_nodes).to eq(gcp_cluster_size)
+      expect(cluster.provider_gcp.machine_type).to eq(tr(gcp_machine_type))
+      expect(cluster.provider_gcp.operation_id).to eq(tr(gcp_operation_id))
+      expect(cluster.provider_gcp.endpoint).to eq(tr(endpoint))
+      expect(cluster.provider_gcp.encrypted_access_token).to eq(tr(encrypted_gcp_token))
+      expect(cluster.provider_gcp.encrypted_access_token_iv).to eq(tr(encrypted_gcp_token_iv))
+
+      expect(cluster.platform_kubernetes.cluster).to eq(cluster)
+      expect(cluster.platform_kubernetes.api_url).to eq('https://' + tr(endpoint))
+      expect(cluster.platform_kubernetes.ca_cert).to eq(tr(ca_cert))
+      expect(cluster.platform_kubernetes.namespace).to eq(tr(project_namespace))
+      expect(cluster.platform_kubernetes.username).to eq(tr(username))
+      expect(cluster.platform_kubernetes.encrypted_password).to eq(tr(encrypted_password))
+      expect(cluster.platform_kubernetes.encrypted_password_iv).to eq(tr(encrypted_password_iv))
+      expect(cluster.platform_kubernetes.encrypted_token).to eq(tr(encrypted_kubernetes_token))
+      expect(cluster.platform_kubernetes.encrypted_token_iv).to eq(tr(encrypted_kubernetes_token_iv))
+    end
+  end
+
+  def tr(s)
+    s.delete("'")
+  end
+end
diff --git a/spec/migrations/schedule_merge_request_diff_migrations_spec.rb b/spec/migrations/schedule_merge_request_diff_migrations_spec.rb
index f95bd6e3511..76afb6c19cf 100644
--- a/spec/migrations/schedule_merge_request_diff_migrations_spec.rb
+++ b/spec/migrations/schedule_merge_request_diff_migrations_spec.rb
@@ -2,19 +2,6 @@ require 'spec_helper'
 require Rails.root.join('db', 'post_migrate', '20170703130158_schedule_merge_request_diff_migrations')
 
 describe ScheduleMergeRequestDiffMigrations, :migration, :sidekiq do
-  matcher :be_scheduled_migration do |time, *expected|
-    match do |migration|
-      BackgroundMigrationWorker.jobs.any? do |job|
-        job['args'] == [migration, expected] &&
-          job['at'].to_i == time.to_i
-      end
-    end
-
-    failure_message do |migration|
-      "Migration `#{migration}` with args `#{expected.inspect}` not scheduled!"
-    end
-  end
-
   let(:merge_request_diffs) { table(:merge_request_diffs) }
   let(:merge_requests) { table(:merge_requests) }
   let(:projects) { table(:projects) }
@@ -37,9 +24,9 @@ describe ScheduleMergeRequestDiffMigrations, :migration, :sidekiq do
       Timecop.freeze do
         migrate!
 
-        expect(described_class::MIGRATION).to be_scheduled_migration(5.minutes.from_now, 1, 1)
-        expect(described_class::MIGRATION).to be_scheduled_migration(10.minutes.from_now, 2, 2)
-        expect(described_class::MIGRATION).to be_scheduled_migration(15.minutes.from_now, 4, 4)
+        expect(described_class::MIGRATION).to be_scheduled_migration(5.minutes, 1, 1)
+        expect(described_class::MIGRATION).to be_scheduled_migration(10.minutes, 2, 2)
+        expect(described_class::MIGRATION).to be_scheduled_migration(15.minutes, 4, 4)
         expect(BackgroundMigrationWorker.jobs.size).to eq 3
       end
     end
diff --git a/spec/migrations/schedule_merge_request_diff_migrations_take_two_spec.rb b/spec/migrations/schedule_merge_request_diff_migrations_take_two_spec.rb
index 4ab1bb67058..cf323973384 100644
--- a/spec/migrations/schedule_merge_request_diff_migrations_take_two_spec.rb
+++ b/spec/migrations/schedule_merge_request_diff_migrations_take_two_spec.rb
@@ -2,19 +2,6 @@ require 'spec_helper'
 require Rails.root.join('db', 'post_migrate', '20170926150348_schedule_merge_request_diff_migrations_take_two')
 
 describe ScheduleMergeRequestDiffMigrationsTakeTwo, :migration, :sidekiq do
-  matcher :be_scheduled_migration do |time, *expected|
-    match do |migration|
-      BackgroundMigrationWorker.jobs.any? do |job|
-        job['args'] == [migration, expected] &&
-          job['at'].to_i == time.to_i
-      end
-    end
-
-    failure_message do |migration|
-      "Migration `#{migration}` with args `#{expected.inspect}` not scheduled!"
-    end
-  end
-
   let(:merge_request_diffs) { table(:merge_request_diffs) }
   let(:merge_requests) { table(:merge_requests) }
   let(:projects) { table(:projects) }
@@ -37,9 +24,9 @@ describe ScheduleMergeRequestDiffMigrationsTakeTwo, :migration, :sidekiq do
       Timecop.freeze do
         migrate!
 
-        expect(described_class::MIGRATION).to be_scheduled_migration(10.minutes.from_now, 1, 1)
-        expect(described_class::MIGRATION).to be_scheduled_migration(20.minutes.from_now, 2, 2)
-        expect(described_class::MIGRATION).to be_scheduled_migration(30.minutes.from_now, 4, 4)
+        expect(described_class::MIGRATION).to be_scheduled_migration(10.minutes, 1, 1)
+        expect(described_class::MIGRATION).to be_scheduled_migration(20.minutes, 2, 2)
+        expect(described_class::MIGRATION).to be_scheduled_migration(30.minutes, 4, 4)
         expect(BackgroundMigrationWorker.jobs.size).to eq 3
       end
     end
diff --git a/spec/migrations/schedule_merge_request_latest_merge_request_diff_id_migrations_spec.rb b/spec/migrations/schedule_merge_request_latest_merge_request_diff_id_migrations_spec.rb
new file mode 100644
index 00000000000..158d0bc02ed
--- /dev/null
+++ b/spec/migrations/schedule_merge_request_latest_merge_request_diff_id_migrations_spec.rb
@@ -0,0 +1,64 @@
+require 'spec_helper'
+require Rails.root.join('db', 'post_migrate', '20171026082505_schedule_merge_request_latest_merge_request_diff_id_migrations')
+
+describe ScheduleMergeRequestLatestMergeRequestDiffIdMigrations, :migration, :sidekiq do
+  let(:projects_table) { table(:projects) }
+  let(:merge_requests_table) { table(:merge_requests) }
+  let(:merge_request_diffs_table) { table(:merge_request_diffs) }
+
+  let(:project) { projects_table.create!(name: 'gitlab', path: 'gitlab-org/gitlab-ce') }
+
+  let!(:merge_request_1) { create_mr!('mr_1', diffs: 1) }
+  let!(:merge_request_2) { create_mr!('mr_2', diffs: 2) }
+  let!(:merge_request_migrated) { create_mr!('merge_request_migrated', diffs: 3) }
+  let!(:merge_request_4) { create_mr!('mr_4', diffs: 3) }
+
+  def create_mr!(name, diffs: 0)
+    merge_request =
+      merge_requests_table.create!(target_project_id: project.id,
+                                   target_branch: 'master',
+                                   source_project_id: project.id,
+                                   source_branch: name,
+                                   title: name)
+
+    diffs.times do
+      merge_request_diffs_table.create!(merge_request_id: merge_request.id)
+    end
+
+    merge_request
+  end
+
+  def diffs_for(merge_request)
+    merge_request_diffs_table.where(merge_request_id: merge_request.id)
+  end
+
+  before do
+    stub_const("#{described_class.name}::BATCH_SIZE", 1)
+
+    diff_id = diffs_for(merge_request_migrated).minimum(:id)
+    merge_request_migrated.update!(latest_merge_request_diff_id: diff_id)
+  end
+
+  it 'correctly schedules background migrations' do
+    Sidekiq::Testing.fake! do
+      Timecop.freeze do
+        migrate!
+
+        expect(described_class::MIGRATION).to be_scheduled_migration(5.minutes, merge_request_1.id, merge_request_1.id)
+        expect(described_class::MIGRATION).to be_scheduled_migration(10.minutes, merge_request_2.id, merge_request_2.id)
+        expect(described_class::MIGRATION).to be_scheduled_migration(15.minutes, merge_request_4.id, merge_request_4.id)
+        expect(BackgroundMigrationWorker.jobs.size).to eq 3
+      end
+    end
+  end
+
+  it 'schedules background migrations' do
+    Sidekiq::Testing.inline! do
+      expect(merge_requests_table.where(latest_merge_request_diff_id: nil).count).to eq 3
+
+      migrate!
+
+      expect(merge_requests_table.where(latest_merge_request_diff_id: nil).count).to eq 0
+    end
+  end
+end
diff --git a/spec/models/ci/build_spec.rb b/spec/models/ci/build_spec.rb
index 5ed2e1ca99a..1795ee8e9a4 100644
--- a/spec/models/ci/build_spec.rb
+++ b/spec/models/ci/build_spec.rb
@@ -270,6 +270,23 @@ describe Ci::Build do
     end
   end
 
+  describe '#triggered_by?' do
+    subject { build.triggered_by?(user) }
+
+    context 'when user is owner' do
+      let(:build) { create(:ci_build, pipeline: pipeline, user: user) }
+
+      it { is_expected.to be_truthy }
+    end
+
+    context 'when user is not owner' do
+      let(:another_user) { create(:user) }
+      let(:build) { create(:ci_build, pipeline: pipeline, user: another_user) }
+
+      it { is_expected.to be_falsy }
+    end
+  end
+
   describe '#detailed_status' do
     it 'returns a detailed status' do
       expect(build.detailed_status(user))
diff --git a/spec/models/clusters/applications/helm_spec.rb b/spec/models/clusters/applications/helm_spec.rb
new file mode 100644
index 00000000000..f8855079842
--- /dev/null
+++ b/spec/models/clusters/applications/helm_spec.rb
@@ -0,0 +1,102 @@
+require 'rails_helper'
+
+describe Clusters::Applications::Helm do
+  it { is_expected.to belong_to(:cluster) }
+  it { is_expected.to validate_presence_of(:cluster) }
+
+  describe '#name' do
+    it 'is .application_name' do
+      expect(subject.name).to eq(described_class.application_name)
+    end
+
+    it 'is recorded in Clusters::Cluster::APPLICATIONS' do
+      expect(Clusters::Cluster::APPLICATIONS[subject.name]).to eq(described_class)
+    end
+  end
+
+  describe '#version' do
+    it 'defaults to Gitlab::Kubernetes::Helm::HELM_VERSION' do
+      expect(subject.version).to eq(Gitlab::Kubernetes::Helm::HELM_VERSION)
+    end
+  end
+
+  describe '#status' do
+    let(:cluster) { create(:cluster) }
+
+    subject { described_class.new(cluster: cluster) }
+
+    it 'defaults to :not_installable' do
+      expect(subject.status_name).to be(:not_installable)
+    end
+
+    context 'when platform kubernetes is defined' do
+      let(:cluster) { create(:cluster, :provided_by_gcp) }
+
+      it 'defaults to :installable' do
+        expect(subject.status_name).to be(:installable)
+      end
+    end
+  end
+
+  describe '#install_command' do
+    it 'has all the needed information' do
+      expect(subject.install_command).to have_attributes(name: subject.name, install_helm: true, chart: nil)
+    end
+  end
+
+  describe 'status state machine' do
+    describe '#make_installing' do
+      subject { create(:cluster_applications_helm, :scheduled) }
+
+      it 'is installing' do
+        subject.make_installing!
+
+        expect(subject).to be_installing
+      end
+    end
+
+    describe '#make_installed' do
+      subject { create(:cluster_applications_helm, :installing) }
+
+      it 'is installed' do
+        subject.make_installed
+
+        expect(subject).to be_installed
+      end
+    end
+
+    describe '#make_errored' do
+      subject { create(:cluster_applications_helm, :installing) }
+      let(:reason) { 'some errors' }
+
+      it 'is errored' do
+        subject.make_errored(reason)
+
+        expect(subject).to be_errored
+        expect(subject.status_reason).to eq(reason)
+      end
+    end
+
+    describe '#make_scheduled' do
+      subject { create(:cluster_applications_helm, :installable) }
+
+      it 'is scheduled' do
+        subject.make_scheduled
+
+        expect(subject).to be_scheduled
+      end
+
+      describe 'when was errored' do
+        subject { create(:cluster_applications_helm, :errored) }
+
+        it 'clears #status_reason' do
+          expect(subject.status_reason).not_to be_nil
+
+          subject.make_scheduled!
+
+          expect(subject.status_reason).to be_nil
+        end
+      end
+    end
+  end
+end
diff --git a/spec/models/clusters/applications/ingress_spec.rb b/spec/models/clusters/applications/ingress_spec.rb
new file mode 100644
index 00000000000..b83472e1944
--- /dev/null
+++ b/spec/models/clusters/applications/ingress_spec.rb
@@ -0,0 +1,108 @@
+require 'rails_helper'
+
+describe Clusters::Applications::Ingress do
+  it { is_expected.to belong_to(:cluster) }
+  it { is_expected.to validate_presence_of(:cluster) }
+
+  describe '#name' do
+    it 'is .application_name' do
+      expect(subject.name).to eq(described_class.application_name)
+    end
+
+    it 'is recorded in Clusters::Cluster::APPLICATIONS' do
+      expect(Clusters::Cluster::APPLICATIONS[subject.name]).to eq(described_class)
+    end
+  end
+
+  describe '#status' do
+    let(:cluster) { create(:cluster, :provided_by_gcp) }
+
+    subject { described_class.new(cluster: cluster) }
+
+    it 'defaults to :not_installable' do
+      expect(subject.status_name).to be(:not_installable)
+    end
+
+    context 'when application helm is scheduled' do
+      before do
+        create(:cluster_applications_helm, :scheduled, cluster: cluster)
+      end
+
+      it 'defaults to :not_installable' do
+        expect(subject.status_name).to be(:not_installable)
+      end
+    end
+
+    context 'when application helm is installed' do
+      before do
+        create(:cluster_applications_helm, :installed, cluster: cluster)
+      end
+
+      it 'defaults to :installable' do
+        expect(subject.status_name).to be(:installable)
+      end
+    end
+  end
+
+  describe '#install_command' do
+    it 'has all the needed information' do
+      expect(subject.install_command).to have_attributes(name: subject.name, install_helm: false, chart: subject.chart)
+    end
+  end
+
+  describe 'status state machine' do
+    describe '#make_installing' do
+      subject { create(:cluster_applications_ingress, :scheduled) }
+
+      it 'is installing' do
+        subject.make_installing!
+
+        expect(subject).to be_installing
+      end
+    end
+
+    describe '#make_installed' do
+      subject { create(:cluster_applications_ingress, :installing) }
+
+      it 'is installed' do
+        subject.make_installed
+
+        expect(subject).to be_installed
+      end
+    end
+
+    describe '#make_errored' do
+      subject { create(:cluster_applications_ingress, :installing) }
+      let(:reason) { 'some errors' }
+
+      it 'is errored' do
+        subject.make_errored(reason)
+
+        expect(subject).to be_errored
+        expect(subject.status_reason).to eq(reason)
+      end
+    end
+
+    describe '#make_scheduled' do
+      subject { create(:cluster_applications_ingress, :installable) }
+
+      it 'is scheduled' do
+        subject.make_scheduled
+
+        expect(subject).to be_scheduled
+      end
+
+      describe 'when was errored' do
+        subject { create(:cluster_applications_ingress, :errored) }
+
+        it 'clears #status_reason' do
+          expect(subject.status_reason).not_to be_nil
+
+          subject.make_scheduled!
+
+          expect(subject.status_reason).to be_nil
+        end
+      end
+    end
+  end
+end
diff --git a/spec/models/clusters/cluster_spec.rb b/spec/models/clusters/cluster_spec.rb
new file mode 100644
index 00000000000..b91a5e7a272
--- /dev/null
+++ b/spec/models/clusters/cluster_spec.rb
@@ -0,0 +1,202 @@
+require 'spec_helper'
+
+describe Clusters::Cluster do
+  it { is_expected.to belong_to(:user) }
+  it { is_expected.to have_many(:projects) }
+  it { is_expected.to have_one(:provider_gcp) }
+  it { is_expected.to have_one(:platform_kubernetes) }
+  it { is_expected.to delegate_method(:status).to(:provider) }
+  it { is_expected.to delegate_method(:status_reason).to(:provider) }
+  it { is_expected.to delegate_method(:status_name).to(:provider) }
+  it { is_expected.to delegate_method(:on_creation?).to(:provider) }
+  it { is_expected.to delegate_method(:update_kubernetes_integration!).to(:platform) }
+  it { is_expected.to respond_to :project }
+
+  describe '.enabled' do
+    subject { described_class.enabled }
+
+    let!(:cluster) { create(:cluster, enabled: true) }
+
+    before do
+      create(:cluster, enabled: false)
+    end
+
+    it { is_expected.to contain_exactly(cluster) }
+  end
+
+  describe '.disabled' do
+    subject { described_class.disabled }
+
+    let!(:cluster) { create(:cluster, enabled: false) }
+
+    before do
+      create(:cluster, enabled: true)
+    end
+
+    it { is_expected.to contain_exactly(cluster) }
+  end
+
+  describe 'validation' do
+    subject { cluster.valid? }
+
+    context 'when validates name' do
+      context 'when provided by user' do
+        let!(:cluster) { build(:cluster, :provided_by_user, name: name) }
+
+        context 'when name is empty' do
+          let(:name) { '' }
+
+          it { is_expected.to be_falsey }
+        end
+
+        context 'when name is nil' do
+          let(:name) { nil }
+
+          it { is_expected.to be_falsey }
+        end
+
+        context 'when name is present' do
+          let(:name) { 'cluster-name-1' }
+
+          it { is_expected.to be_truthy }
+        end
+      end
+
+      context 'when provided by gcp' do
+        let!(:cluster) { build(:cluster, :provided_by_gcp, name: name) }
+
+        context 'when name is shorter than 1' do
+          let(:name) { '' }
+
+          it { is_expected.to be_falsey }
+        end
+
+        context 'when name is longer than 63' do
+          let(:name) { 'a' * 64 }
+
+          it { is_expected.to be_falsey }
+        end
+
+        context 'when name includes invalid character' do
+          let(:name) { '!!!!!!' }
+
+          it { is_expected.to be_falsey }
+        end
+
+        context 'when name is present' do
+          let(:name) { 'cluster-name-1' }
+
+          it { is_expected.to be_truthy }
+        end
+
+        context 'when record is persisted' do
+          let(:name) { 'cluster-name-1' }
+
+          before do
+            cluster.save!
+          end
+
+          context 'when name is changed' do
+            before do
+              cluster.name = 'new-cluster-name'
+            end
+
+            it { is_expected.to be_falsey }
+          end
+
+          context 'when name is same' do
+            before do
+              cluster.name = name
+            end
+
+            it { is_expected.to be_truthy }
+          end
+        end
+      end
+    end
+
+    context 'when validates restrict_modification' do
+      context 'when creation is on going' do
+        let!(:cluster) { create(:cluster, :providing_by_gcp) }
+
+        it { expect(cluster.update(enabled: false)).to be_falsey }
+      end
+
+      context 'when creation is done' do
+        let!(:cluster) { create(:cluster, :provided_by_gcp) }
+
+        it { expect(cluster.update(enabled: false)).to be_truthy }
+      end
+    end
+  end
+
+  describe '#provider' do
+    subject { cluster.provider }
+
+    context 'when provider is gcp' do
+      let(:cluster) { create(:cluster, :provided_by_gcp) }
+
+      it 'returns a provider' do
+        is_expected.to eq(cluster.provider_gcp)
+        expect(subject.class.name.deconstantize).to eq(Clusters::Providers.to_s)
+      end
+    end
+
+    context 'when provider is user' do
+      let(:cluster) { create(:cluster, :provided_by_user) }
+
+      it { is_expected.to be_nil }
+    end
+  end
+
+  describe '#platform' do
+    subject { cluster.platform }
+
+    context 'when platform is kubernetes' do
+      let(:cluster) { create(:cluster, :provided_by_user) }
+
+      it 'returns a platform' do
+        is_expected.to eq(cluster.platform_kubernetes)
+        expect(subject.class.name.deconstantize).to eq(Clusters::Platforms.to_s)
+      end
+    end
+  end
+
+  describe '#first_project' do
+    subject { cluster.first_project }
+
+    context 'when cluster belongs to a project' do
+      let(:cluster) { create(:cluster, :project) }
+      let(:project) { Clusters::Project.find_by_cluster_id(cluster.id).project }
+
+      it { is_expected.to eq(project) }
+    end
+
+    context 'when cluster does not belong to projects' do
+      let(:cluster) { create(:cluster) }
+
+      it { is_expected.to be_nil }
+    end
+  end
+
+  describe '#applications' do
+    set(:cluster) { create(:cluster) }
+
+    subject { cluster.applications }
+
+    context 'when none of applications are created' do
+      it 'returns a list of a new objects' do
+        is_expected.not_to be_empty
+      end
+    end
+
+    context 'when applications are created' do
+      let!(:helm) { create(:cluster_applications_helm, cluster: cluster) }
+      let!(:ingress) { create(:cluster_applications_ingress, cluster: cluster) }
+
+      it 'returns a list of created applications' do
+        is_expected.to contain_exactly(helm, ingress)
+      end
+    end
+  end
+end
diff --git a/spec/models/clusters/platforms/kubernetes_spec.rb b/spec/models/clusters/platforms/kubernetes_spec.rb
new file mode 100644
index 00000000000..ed76be703a5
--- /dev/null
+++ b/spec/models/clusters/platforms/kubernetes_spec.rb
@@ -0,0 +1,188 @@
+require 'spec_helper'
+
+describe Clusters::Platforms::Kubernetes, :use_clean_rails_memory_store_caching do
+  include KubernetesHelpers
+  include ReactiveCachingHelpers
+
+  it { is_expected.to belong_to(:cluster) }
+  it { is_expected.to respond_to :ca_pem }
+
+  describe 'before_validation' do
+    context 'when namespace includes upper case' do
+      let(:kubernetes) { create(:cluster_platform_kubernetes, :configured, namespace: namespace) }
+      let(:namespace) { 'ABC' }
+
+      it 'converts to lower case' do
+        expect(kubernetes.namespace).to eq('abc')
+      end
+    end
+  end
+
+  describe 'validation' do
+    subject { kubernetes.valid? }
+
+    context 'when validates namespace' do
+      let(:kubernetes) { build(:cluster_platform_kubernetes, :configured, namespace: namespace) }
+
+      context 'when namespace is blank' do
+        let(:namespace) { '' }
+
+        it { is_expected.to be_truthy }
+      end
+
+      context 'when namespace is longer than 63' do
+        let(:namespace) { 'a' * 64 }
+
+        it { is_expected.to be_falsey }
+      end
+
+      context 'when namespace includes invalid character' do
+        let(:namespace) { '!!!!!!' }
+
+        it { is_expected.to be_falsey }
+      end
+
+      context 'when namespace is vaild' do
+        let(:namespace) { 'namespace-123' }
+
+        it { is_expected.to be_truthy }
+      end
+    end
+
+    context 'when validates api_url' do
+      let(:kubernetes) { build(:cluster_platform_kubernetes, :configured) }
+
+      before do
+        kubernetes.api_url = api_url
+      end
+
+      context 'when api_url is invalid url' do
+        let(:api_url) { '!!!!!!' }
+
+        it { expect(kubernetes.save).to be_falsey }
+      end
+
+      context 'when api_url is nil' do
+        let(:api_url) { nil }
+
+        it { expect(kubernetes.save).to be_falsey }
+      end
+
+      context 'when api_url is valid url' do
+        let(:api_url) { 'https://111.111.111.111' }
+
+        it { expect(kubernetes.save).to be_truthy }
+      end
+    end
+
+    context 'when validates token' do
+      let(:kubernetes) { build(:cluster_platform_kubernetes, :configured) }
+
+      before do
+        kubernetes.token = token
+      end
+
+      context 'when token is nil' do
+        let(:token) { nil }
+
+        it { expect(kubernetes.save).to be_falsey }
+      end
+    end
+  end
+
+  describe 'after_save from Clusters::Cluster' do
+    context 'when platform_kubernetes is being cerated' do
+      let(:enabled) { true }
+      let(:project) { create(:project) }
+      let(:cluster) { build(:cluster, provider_type: :gcp, platform_type: :kubernetes, platform_kubernetes: platform, provider_gcp: provider, enabled: enabled, projects: [project]) }
+      let(:platform) { build(:cluster_platform_kubernetes, :configured) }
+      let(:provider) { build(:cluster_provider_gcp) }
+      let(:kubernetes_service) { project.kubernetes_service }
+
+      it 'updates KubernetesService' do
+        cluster.save!
+
+        expect(kubernetes_service.active).to eq(enabled)
+        expect(kubernetes_service.api_url).to eq(platform.api_url)
+        expect(kubernetes_service.namespace).to eq(platform.namespace)
+        expect(kubernetes_service.ca_pem).to eq(platform.ca_cert)
+      end
+    end
+
+    context 'when platform_kubernetes has been created' do
+      let(:enabled) { false }
+      let!(:project) { create(:project) }
+      let!(:cluster) { create(:cluster, :provided_by_gcp, projects: [project]) }
+      let(:platform) { cluster.platform }
+      let(:kubernetes_service) { project.kubernetes_service }
+
+      it 'updates KubernetesService' do
+        cluster.update(enabled: enabled)
+
+        expect(kubernetes_service.active).to eq(enabled)
+      end
+    end
+
+    context 'when kubernetes_service has been configured without cluster integration' do
+      let!(:project) { create(:project) }
+      let(:cluster) { build(:cluster, provider_type: :gcp, platform_type: :kubernetes, platform_kubernetes: platform, provider_gcp: provider, projects: [project]) }
+      let(:platform) { build(:cluster_platform_kubernetes, :configured, api_url: 'https://111.111.111.111') }
+      let(:provider) { build(:cluster_provider_gcp) }
+
+      before do
+        create(:kubernetes_service, project: project)
+      end
+
+      it 'raises an error' do
+        expect { cluster.save! }.to raise_error('Kubernetes service already configured')
+      end
+    end
+  end
+
+  describe '#actual_namespace' do
+    subject { kubernetes.actual_namespace }
+
+    let!(:cluster) { create(:cluster, :project, platform_kubernetes: kubernetes) }
+    let(:project) { cluster.project }
+    let(:kubernetes) { create(:cluster_platform_kubernetes, :configured, namespace: namespace) }
+
+    context 'when namespace is present' do
+      let(:namespace) { 'namespace-123' }
+
+      it { is_expected.to eq(namespace) }
+    end
+
+    context 'when namespace is not present' do
+      let(:namespace) { nil }
+
+      it { is_expected.to eq("#{project.path}-#{project.id}") }
+    end
+  end
+
+  describe '.namespace_for_project' do
+    subject { described_class.namespace_for_project(project) }
+
+    let(:project) { create(:project) }
+
+    it { is_expected.to eq("#{project.path}-#{project.id}") }
+  end
+
+  describe '#default_namespace' do
+    subject { kubernetes.default_namespace }
+
+    let(:kubernetes) { create(:cluster_platform_kubernetes, :configured) }
+
+    context 'when cluster belongs to a project' do
+      let!(:cluster) { create(:cluster, :project, platform_kubernetes: kubernetes) }
+      let(:project) { cluster.project }
+
+      it { is_expected.to eq("#{project.path}-#{project.id}") }
+    end
+
+    context 'when cluster belongs to nothing' do
+      let!(:cluster) { create(:cluster, platform_kubernetes: kubernetes) }
+
+      it { is_expected.to be_nil }
+    end
+  end
+end
diff --git a/spec/models/clusters/project_spec.rb b/spec/models/clusters/project_spec.rb
new file mode 100644
index 00000000000..7d75d6ab345
--- /dev/null
+++ b/spec/models/clusters/project_spec.rb
@@ -0,0 +1,6 @@
+require 'spec_helper'
+
+describe Clusters::Project do
+  it { is_expected.to belong_to(:cluster) }
+  it { is_expected.to belong_to(:project) }
+end
diff --git a/spec/models/clusters/providers/gcp_spec.rb b/spec/models/clusters/providers/gcp_spec.rb
new file mode 100644
index 00000000000..b38b5e6bcad
--- /dev/null
+++ b/spec/models/clusters/providers/gcp_spec.rb
@@ -0,0 +1,183 @@
+require 'spec_helper'
+
+describe Clusters::Providers::Gcp do
+  it { is_expected.to belong_to(:cluster) }
+  it { is_expected.to validate_presence_of(:zone) }
+
+  describe 'default_value_for' do
+    let(:gcp) { build(:cluster_provider_gcp) }
+
+    it "has default value" do
+      expect(gcp.zone).to eq('us-central1-a')
+      expect(gcp.num_nodes).to eq(3)
+      expect(gcp.machine_type).to eq('n1-standard-2')
+    end
+  end
+
+  describe 'validation' do
+    subject { gcp.valid? }
+
+    context 'when validates gcp_project_id' do
+      let(:gcp) { build(:cluster_provider_gcp, gcp_project_id: gcp_project_id) }
+
+      context 'when gcp_project_id is shorter than 1' do
+        let(:gcp_project_id) { '' }
+
+        it { is_expected.to be_falsey }
+      end
+
+      context 'when gcp_project_id is longer than 63' do
+        let(:gcp_project_id) { 'a' * 64 }
+
+        it { is_expected.to be_falsey }
+      end
+
+      context 'when gcp_project_id includes invalid character' do
+        let(:gcp_project_id) { '!!!!!!' }
+
+        it { is_expected.to be_falsey }
+      end
+
+      context 'when gcp_project_id is valid' do
+        let(:gcp_project_id) { 'gcp-project-1' }
+
+        it { is_expected.to be_truthy }
+      end
+    end
+
+    context 'when validates num_nodes' do
+      let(:gcp) { build(:cluster_provider_gcp, num_nodes: num_nodes) }
+
+      context 'when num_nodes is string' do
+        let(:num_nodes) { 'A3' }
+
+        it { is_expected.to be_falsey }
+      end
+
+      context 'when num_nodes is nil' do
+        let(:num_nodes) { nil }
+
+        it { is_expected.to be_falsey }
+      end
+
+      context 'when num_nodes is smaller than 1' do
+        let(:num_nodes) { 0 }
+
+        it { is_expected.to be_falsey }
+      end
+
+      context 'when num_nodes is valid' do
+        let(:num_nodes) { 3 }
+
+        it { is_expected.to be_truthy }
+      end
+    end
+  end
+
+  describe '#state_machine' do
+    context 'when any => [:created]' do
+      let(:gcp) { build(:cluster_provider_gcp, :creating) }
+
+      before do
+        gcp.make_created
+      end
+
+      it 'nullify access_token and operation_id' do
+        expect(gcp.access_token).to be_nil
+        expect(gcp.operation_id).to be_nil
+        expect(gcp).to be_created
+      end
+    end
+
+    context 'when any => [:creating]' do
+      let(:gcp) { build(:cluster_provider_gcp) }
+
+      context 'when operation_id is present' do
+        let(:operation_id) { 'operation-xxx' }
+
+        before do
+          gcp.make_creating(operation_id)
+        end
+
+        it 'sets operation_id' do
+          expect(gcp.operation_id).to eq(operation_id)
+          expect(gcp).to be_creating
+        end
+      end
+
+      context 'when operation_id is nil' do
+        let(:operation_id) { nil }
+
+        it 'raises an error' do
+          expect { gcp.make_creating(operation_id) }
+            .to raise_error('operation_id is required')
+        end
+      end
+    end
+
+    context 'when any => [:errored]' do
+      let(:gcp) { build(:cluster_provider_gcp, :creating) }
+      let(:status_reason) { 'err msg' }
+
+      it 'nullify access_token and operation_id' do
+        gcp.make_errored(status_reason)
+
+        expect(gcp.access_token).to be_nil
+        expect(gcp.operation_id).to be_nil
+        expect(gcp.status_reason).to eq(status_reason)
+        expect(gcp).to be_errored
+      end
+
+      context 'when status_reason is nil' do
+        let(:gcp) { build(:cluster_provider_gcp, :errored) }
+
+        it 'does not set status_reason' do
+          gcp.make_errored(nil)
+
+          expect(gcp.status_reason).not_to be_nil
+        end
+      end
+    end
+  end
+
+  describe '#on_creation?' do
+    subject { gcp.on_creation? }
+
+    context 'when status is creating' do
+      let(:gcp) { create(:cluster_provider_gcp, :creating) }
+
+      it { is_expected.to be_truthy }
+    end
+
+    context 'when status is created' do
+      let(:gcp) { create(:cluster_provider_gcp, :created) }
+
+      it { is_expected.to be_falsey }
+    end
+  end
+
+  describe '#api_client' do
+    subject { gcp.api_client }
+
+    context 'when status is creating' do
+      let(:gcp) { build(:cluster_provider_gcp, :creating) }
+
+      it 'returns Cloud Platform API clinet' do
+        expect(subject).to be_an_instance_of(GoogleApi::CloudPlatform::Client)
+        expect(subject.access_token).to eq(gcp.access_token)
+      end
+    end
+
+    context 'when status is created' do
+      let(:gcp) { build(:cluster_provider_gcp, :created) }
+
+      it { is_expected.to be_nil }
+    end
+
+    context 'when status is errored' do
+      let(:gcp) { build(:cluster_provider_gcp, :errored) }
+
+      it { is_expected.to be_nil }
+    end
+  end
+end
diff --git a/spec/models/commit_status_spec.rb b/spec/models/commit_status_spec.rb
index 858ec831200..c536dab2681 100644
--- a/spec/models/commit_status_spec.rb
+++ b/spec/models/commit_status_spec.rb
@@ -1,9 +1,9 @@
 require 'spec_helper'
 
 describe CommitStatus do
-  let(:project) { create(:project, :repository) }
+  set(:project) { create(:project, :repository) }
 
-  let(:pipeline) do
+  set(:pipeline) do
     create(:ci_pipeline, project: project, sha: project.commit.id)
   end
 
@@ -464,4 +464,73 @@ describe CommitStatus do
       it { is_expected.to be_script_failure }
     end
   end
+
+  describe 'ensure stage assignment' do
+    context 'when commit status has a stage_id assigned' do
+      let!(:stage) do
+        create(:ci_stage_entity, project: project, pipeline: pipeline)
+      end
+
+      let(:commit_status) do
+        create(:commit_status, stage_id: stage.id, name: 'rspec', stage: 'test')
+      end
+
+      it 'does not create a new stage' do
+        expect { commit_status }.not_to change { Ci::Stage.count }
+        expect(commit_status.stage_id).to eq stage.id
+      end
+    end
+
+    context 'when commit status does not have a stage_id assigned' do
+      let(:commit_status) do
+        create(:commit_status, name: 'rspec', stage: 'test', status: :success)
+      end
+
+      let(:stage) { Ci::Stage.first }
+
+      it 'creates a new stage' do
+        expect { commit_status }.to change { Ci::Stage.count }.by(1)
+
+        expect(stage.name).to eq 'test'
+        expect(stage.project).to eq commit_status.project
+        expect(stage.pipeline).to eq commit_status.pipeline
+        expect(stage.status).to eq commit_status.status
+        expect(commit_status.stage_id).to eq stage.id
+      end
+    end
+
+    context 'when commit status does not have stage but it exists' do
+      let!(:stage) do
+        create(:ci_stage_entity, project: project,
+                                 pipeline: pipeline,
+                                 name: 'test')
+      end
+
+      let(:commit_status) do
+        create(:commit_status, project: project,
+                               pipeline: pipeline,
+                               name: 'rspec',
+                               stage: 'test',
+                               status: :success)
+      end
+
+      it 'uses existing stage' do
+        expect { commit_status }.not_to change { Ci::Stage.count }
+
+        expect(commit_status.stage_id).to eq stage.id
+        expect(stage.reload.status).to eq commit_status.status
+      end
+    end
+
+    context 'when commit status is being imported' do
+      let(:commit_status) do
+        create(:commit_status, name: 'rspec', stage: 'test', importing: true)
+      end
+
+      it 'does not create a new stage' do
+        expect { commit_status }.not_to change { Ci::Stage.count }
+        expect(commit_status.stage_id).not_to be_present
+      end
+    end
+  end
 end
diff --git a/spec/models/concerns/avatarable_spec.rb b/spec/models/concerns/avatarable_spec.rb
new file mode 100644
index 00000000000..cbdc438be0b
--- /dev/null
+++ b/spec/models/concerns/avatarable_spec.rb
@@ -0,0 +1,44 @@
+require 'spec_helper'
+
+describe Avatarable do
+  subject { create(:project, avatar: fixture_file_upload(File.join(Rails.root, 'spec/fixtures/dk.png'))) }
+
+  let(:gitlab_host) { "https://gitlab.example.com" }
+  let(:relative_url_root) { "/gitlab" }
+  let(:asset_host) { "https://gitlab-assets.example.com" }
+
+  before do
+    stub_config_setting(base_url: gitlab_host)
+    stub_config_setting(relative_url_root: relative_url_root)
+  end
+
+  describe '#avatar_path' do
+    using RSpec::Parameterized::TableSyntax
+
+    where(:has_asset_host, :visibility_level, :only_path, :avatar_path) do
+      true  | Project::PRIVATE  | true  | [gitlab_host, relative_url_root, subject.avatar.url]
+      true  | Project::PRIVATE  | false | [gitlab_host, relative_url_root, subject.avatar.url]
+      true  | Project::INTERNAL | true  | [gitlab_host, relative_url_root, subject.avatar.url]
+      true  | Project::INTERNAL | false | [gitlab_host, relative_url_root, subject.avatar.url]
+      true  | Project::PUBLIC   | true  | [subject.avatar.url]
+      true  | Project::PUBLIC   | false | [asset_host, subject.avatar.url]
+      false | Project::PRIVATE  | true  | [relative_url_root, subject.avatar.url]
+      false | Project::PRIVATE  | false | [gitlab_host, relative_url_root, subject.avatar.url]
+      false | Project::INTERNAL | true  | [relative_url_root, subject.avatar.url]
+      false | Project::INTERNAL | false | [gitlab_host, relative_url_root, subject.avatar.url]
+      false | Project::PUBLIC   | true  | [relative_url_root, subject.avatar.url]
+      false | Project::PUBLIC   | false | [gitlab_host, relative_url_root, subject.avatar.url]
+    end
+
+    with_them do
+      before do
+        allow(ActionController::Base).to receive(:asset_host).and_return(has_asset_host ? asset_host : nil)
+        subject.visibility_level = visibility_level
+      end
+
+      it 'returns the expected avatar path' do
+        expect(subject.avatar_path(only_path: only_path)).to eq(avatar_path.join)
+      end
+    end
+  end
+end
diff --git a/spec/models/concerns/ignorable_column_spec.rb b/spec/models/concerns/ignorable_column_spec.rb
index dba9fe43327..b70f2331a0e 100644
--- a/spec/models/concerns/ignorable_column_spec.rb
+++ b/spec/models/concerns/ignorable_column_spec.rb
@@ -5,7 +5,11 @@ describe IgnorableColumn do
     Class.new do
       def self.columns
         # This method does not have access to "double"
-        [Struct.new(:name).new('id'), Struct.new(:name).new('title')]
+        [
+          Struct.new(:name).new('id'),
+          Struct.new(:name).new('title'),
+          Struct.new(:name).new('date')
+        ]
       end
     end
   end
@@ -18,7 +22,7 @@ describe IgnorableColumn do
 
   describe '.columns' do
     it 'returns the columns, excluding the ignored ones' do
-      model.ignore_column(:title)
+      model.ignore_column(:title, :date)
 
       expect(model.columns.map(&:name)).to eq(%w(id))
     end
@@ -30,9 +34,9 @@ describe IgnorableColumn do
     end
 
     it 'returns the names of the ignored columns' do
-      model.ignore_column(:title)
+      model.ignore_column(:title, :date)
 
-      expect(model.ignored_columns).to eq(Set.new(%w(title)))
+      expect(model.ignored_columns).to eq(Set.new(%w(title date)))
     end
   end
 end
diff --git a/spec/models/concerns/issuable_spec.rb b/spec/models/concerns/issuable_spec.rb
index ba57301a3c9..4dfbb14952e 100644
--- a/spec/models/concerns/issuable_spec.rb
+++ b/spec/models/concerns/issuable_spec.rb
@@ -265,25 +265,44 @@ describe Issuable do
   end
 
   describe '#to_hook_data' do
+    let(:builder) { double }
+
     context 'labels are updated' do
       let(:labels) { create_list(:label, 2) }
 
       before do
         issue.update(labels: [labels[1]])
+        expect(Gitlab::HookData::IssuableBuilder)
+          .to receive(:new).with(issue).and_return(builder)
       end
 
       it 'delegates to Gitlab::HookData::IssuableBuilder#build' do
-        builder = double
+        expect(builder).to receive(:build).with(
+          user: user,
+          changes: hash_including(
+            'labels' => [[labels[0].hook_attrs], [labels[1].hook_attrs]]
+          ))
 
+        issue.to_hook_data(user, old_labels: [labels[0]])
+      end
+    end
+
+    context 'total_time_spent is updated' do
+      before do
+        issue.spend_time(duration: 2, user: user, spent_at: Time.now)
+        issue.save
         expect(Gitlab::HookData::IssuableBuilder)
           .to receive(:new).with(issue).and_return(builder)
+      end
+
+      it 'delegates to Gitlab::HookData::IssuableBuilder#build' do
         expect(builder).to receive(:build).with(
           user: user,
           changes: hash_including(
-            'labels' => [[labels[0].hook_attrs], [labels[1].hook_attrs]]
+            'total_time_spent' => [1, 2]
           ))
 
-        issue.to_hook_data(user, old_labels: [labels[0]])
+        issue.to_hook_data(user, old_total_time_spent: 1)
       end
     end
 
@@ -292,13 +311,11 @@ describe Issuable do
 
       before do
         issue.assignees << user << user2
+        expect(Gitlab::HookData::IssuableBuilder)
+          .to receive(:new).with(issue).and_return(builder)
       end
 
       it 'delegates to Gitlab::HookData::IssuableBuilder#build' do
-        builder = double
-
-        expect(Gitlab::HookData::IssuableBuilder)
-          .to receive(:new).with(issue).and_return(builder)
         expect(builder).to receive(:build).with(
           user: user,
           changes: hash_including(
@@ -316,13 +333,11 @@ describe Issuable do
       before do
         merge_request.update(assignee: user)
         merge_request.update(assignee: user2)
+        expect(Gitlab::HookData::IssuableBuilder)
+          .to receive(:new).with(merge_request).and_return(builder)
       end
 
       it 'delegates to Gitlab::HookData::IssuableBuilder#build' do
-        builder = double
-
-        expect(Gitlab::HookData::IssuableBuilder)
-          .to receive(:new).with(merge_request).and_return(builder)
         expect(builder).to receive(:build).with(
           user: user,
           changes: hash_including(
diff --git a/spec/models/concerns/milestoneish_spec.rb b/spec/models/concerns/milestoneish_spec.rb
index 66353935427..9048da0c73d 100644
--- a/spec/models/concerns/milestoneish_spec.rb
+++ b/spec/models/concerns/milestoneish_spec.rb
@@ -186,4 +186,21 @@ describe Milestone, 'Milestoneish' do
       expect(milestone.elapsed_days).to eq(2)
     end
   end
+
+  describe '#total_issue_time_spent' do
+    it 'calculates total issue time spent' do
+      closed_issue_1.spend_time(duration: 300, user: author)
+      closed_issue_1.save!
+      closed_issue_2.spend_time(duration: 600, user: assignee)
+      closed_issue_2.save!
+
+      expect(milestone.total_issue_time_spent).to eq(900)
+    end
+  end
+
+  describe '#human_total_issue_time_spent' do
+    it 'returns nil if no time has been spent' do
+      expect(milestone.human_total_issue_time_spent).to be_nil
+    end
+  end
 end
diff --git a/spec/models/diff_note_spec.rb b/spec/models/diff_note_spec.rb
index da972d2d86a..8389d5c5430 100644
--- a/spec/models/diff_note_spec.rb
+++ b/spec/models/diff_note_spec.rb
@@ -283,6 +283,12 @@ describe DiffNote do
         expect(diff_line).to be nil
         expect(subject).to be_valid
       end
+
+      it "does not update the position" do
+        expect(subject).not_to receive(:update_position)
+
+        subject.save
+      end
     end
 
     it "returns true for on_image?" do
diff --git a/spec/models/gcp/cluster_spec.rb b/spec/models/gcp/cluster_spec.rb
deleted file mode 100644
index 8f39fff6394..00000000000
--- a/spec/models/gcp/cluster_spec.rb
+++ /dev/null
@@ -1,264 +0,0 @@
-require 'spec_helper'
-
-describe Gcp::Cluster do
-  it { is_expected.to belong_to(:project) }
-  it { is_expected.to belong_to(:user) }
-  it { is_expected.to belong_to(:service) }
-
-  it { is_expected.to validate_presence_of(:gcp_cluster_zone) }
-
-  describe '.enabled' do
-    subject { described_class.enabled }
-
-    let!(:cluster) { create(:gcp_cluster, enabled: true) }
-
-    before do
-      create(:gcp_cluster, enabled: false)
-    end
-
-    it { is_expected.to contain_exactly(cluster) }
-  end
-
-  describe '.disabled' do
-    subject { described_class.disabled }
-
-    let!(:cluster) { create(:gcp_cluster, enabled: false) }
-
-    before do
-      create(:gcp_cluster, enabled: true)
-    end
-
-    it { is_expected.to contain_exactly(cluster) }
-  end
-
-  describe '#default_value_for' do
-    let(:cluster) { described_class.new }
-
-    it { expect(cluster.gcp_cluster_zone).to eq('us-central1-a') }
-    it { expect(cluster.gcp_cluster_size).to eq(3) }
-    it { expect(cluster.gcp_machine_type).to eq('n1-standard-4') }
-  end
-
-  describe '#validates' do
-    subject { cluster.valid? }
-
-    context 'when validates gcp_project_id' do
-      let(:cluster) { build(:gcp_cluster, gcp_project_id: gcp_project_id) }
-
-      context 'when valid' do
-        let(:gcp_project_id) { 'gcp-project-12345' }
-
-        it { is_expected.to be_truthy }
-      end
-
-      context 'when empty' do
-        let(:gcp_project_id) { '' }
-
-        it { is_expected.to be_falsey }
-      end
-
-      context 'when too long' do
-        let(:gcp_project_id) { 'A' * 64 }
-
-        it { is_expected.to be_falsey }
-      end
-
-      context 'when includes abnormal character' do
-        let(:gcp_project_id) { '!!!!!!' }
-
-        it { is_expected.to be_falsey }
-      end
-    end
-
-    context 'when validates gcp_cluster_name' do
-      let(:cluster) { build(:gcp_cluster, gcp_cluster_name: gcp_cluster_name) }
-
-      context 'when valid' do
-        let(:gcp_cluster_name) { 'test-cluster' }
-
-        it { is_expected.to be_truthy }
-      end
-
-      context 'when empty' do
-        let(:gcp_cluster_name) { '' }
-
-        it { is_expected.to be_falsey }
-      end
-
-      context 'when too long' do
-        let(:gcp_cluster_name) { 'A' * 64 }
-
-        it { is_expected.to be_falsey }
-      end
-
-      context 'when includes abnormal character' do
-        let(:gcp_cluster_name) { '!!!!!!' }
-
-        it { is_expected.to be_falsey }
-      end
-    end
-
-    context 'when validates gcp_cluster_size' do
-      let(:cluster) { build(:gcp_cluster, gcp_cluster_size: gcp_cluster_size) }
-
-      context 'when valid' do
-        let(:gcp_cluster_size) { 1 }
-
-        it { is_expected.to be_truthy }
-      end
-
-      context 'when zero' do
-        let(:gcp_cluster_size) { 0 }
-
-        it { is_expected.to be_falsey }
-      end
-    end
-
-    context 'when validates project_namespace' do
-      let(:cluster) { build(:gcp_cluster, project_namespace: project_namespace) }
-
-      context 'when valid' do
-        let(:project_namespace) { 'default-namespace' }
-
-        it { is_expected.to be_truthy }
-      end
-
-      context 'when empty' do
-        let(:project_namespace) { '' }
-
-        it { is_expected.to be_truthy }
-      end
-
-      context 'when too long' do
-        let(:project_namespace) { 'A' * 64 }
-
-        it { is_expected.to be_falsey }
-      end
-
-      context 'when includes abnormal character' do
-        let(:project_namespace) { '!!!!!!' }
-
-        it { is_expected.to be_falsey }
-      end
-    end
-
-    context 'when validates restrict_modification' do
-      let(:cluster) { create(:gcp_cluster) }
-
-      before do
-        cluster.make_creating!
-      end
-
-      context 'when created' do
-        before do
-          cluster.make_created!
-        end
-
-        it { is_expected.to be_truthy }
-      end
-
-      context 'when creating' do
-        it { is_expected.to be_falsey }
-      end
-    end
-  end
-
-  describe '#state_machine' do
-    let(:cluster) { build(:gcp_cluster) }
-
-    context 'when transits to created state' do
-      before do
-        cluster.gcp_token = 'tmp'
-        cluster.gcp_operation_id = 'tmp'
-        cluster.make_created!
-      end
-
-      it 'nullify gcp_token and gcp_operation_id' do
-        expect(cluster.gcp_token).to be_nil
-        expect(cluster.gcp_operation_id).to be_nil
-        expect(cluster).to be_created
-      end
-    end
-
-    context 'when transits to errored state' do
-      let(:reason) { 'something wrong' }
-
-      before do
-        cluster.make_errored!(reason)
-      end
-
-      it 'sets status_reason' do
-        expect(cluster.status_reason).to eq(reason)
-        expect(cluster).to be_errored
-      end
-    end
-  end
-
-  describe '#project_namespace_placeholder' do
-    subject { cluster.project_namespace_placeholder }
-
-    let(:cluster) { create(:gcp_cluster) }
-
-    it 'returns a placeholder' do
-      is_expected.to eq("#{cluster.project.path}-#{cluster.project.id}")
-    end
-  end
-
-  describe '#on_creation?' do
-    subject { cluster.on_creation? }
-
-    let(:cluster) { create(:gcp_cluster) }
-
-    context 'when status is creating' do
-      before do
-        cluster.make_creating!
-      end
-
-      it { is_expected.to be_truthy }
-    end
-
-    context 'when status is created' do
-      before do
-        cluster.make_created!
-      end
-
-      it { is_expected.to be_falsey }
-    end
-  end
-
-  describe '#api_url' do
-    subject { cluster.api_url }
-
-    let(:cluster) { create(:gcp_cluster, :created_on_gke) }
-    let(:api_url) { 'https://' + cluster.endpoint }
-
-    it { is_expected.to eq(api_url) }
-  end
-
-  describe '#restrict_modification' do
-    subject { cluster.restrict_modification }
-
-    let(:cluster) { create(:gcp_cluster) }
-
-    context 'when status is created' do
-      before do
-        cluster.make_created!
-      end
-
-      it { is_expected.to be_truthy }
-    end
-
-    context 'when status is creating' do
-      before do
-        cluster.make_creating!
-      end
-
-      it { is_expected.to be_falsey }
-
-      it 'sets error' do
-        is_expected.to be_falsey
-        expect(cluster.errors).not_to be_empty
-      end
-    end
-  end
-end
diff --git a/spec/models/group_custom_attribute_spec.rb b/spec/models/group_custom_attribute_spec.rb
new file mode 100644
index 00000000000..7ecb2022567
--- /dev/null
+++ b/spec/models/group_custom_attribute_spec.rb
@@ -0,0 +1,16 @@
+require 'spec_helper'
+
+describe GroupCustomAttribute do
+  describe 'assocations' do
+    it { is_expected.to belong_to(:group) }
+  end
+
+  describe 'validations' do
+    subject { build :group_custom_attribute }
+
+    it { is_expected.to validate_presence_of(:group) }
+    it { is_expected.to validate_presence_of(:key) }
+    it { is_expected.to validate_presence_of(:value) }
+    it { is_expected.to validate_uniqueness_of(:key).scoped_to(:group_id) }
+  end
+end
diff --git a/spec/models/group_spec.rb b/spec/models/group_spec.rb
index 0e1a7fdce0b..5e82a2988ce 100644
--- a/spec/models/group_spec.rb
+++ b/spec/models/group_spec.rb
@@ -17,6 +17,7 @@ describe Group do
     it { is_expected.to have_many(:variables).class_name('Ci::GroupVariable') }
     it { is_expected.to have_many(:uploads).dependent(:destroy) }
     it { is_expected.to have_one(:chat_team) }
+    it { is_expected.to have_many(:custom_attributes).class_name('GroupCustomAttribute') }
 
     describe '#members & #requesters' do
       let(:requester) { create(:user) }
@@ -64,12 +65,6 @@ describe Group do
 
         expect(group).not_to be_valid
       end
-
-      it 'rejects reserved group paths' do
-        group = build(:group, path: 'activity', parent: create(:group))
-
-        expect(group).not_to be_valid
-      end
     end
 
     describe '#visibility_level_allowed_by_parent' do
@@ -252,8 +247,6 @@ describe Group do
   describe '#avatar_url' do
     let!(:group) { create(:group, :access_requestable, :with_avatar) }
     let(:user) { create(:user) }
-    let(:gitlab_host) { "http://#{Gitlab.config.gitlab.host}" }
-    let(:avatar_path) { "/uploads/-/system/group/avatar/#{group.id}/dk.png" }
 
     context 'when avatar file is uploaded' do
       before do
@@ -261,12 +254,8 @@ describe Group do
       end
 
       it 'shows correct avatar url' do
-        expect(group.avatar_url).to eq(avatar_path)
-        expect(group.avatar_url(only_path: false)).to eq([gitlab_host, avatar_path].join)
-
-        allow(ActionController::Base).to receive(:asset_host).and_return(gitlab_host)
-
-        expect(group.avatar_url).to eq([gitlab_host, avatar_path].join)
+        expect(group.avatar_url).to eq(group.avatar.url)
+        expect(group.avatar_url(only_path: false)).to eq([Gitlab.config.gitlab.url, group.avatar.url].join)
       end
     end
   end
diff --git a/spec/models/issue_spec.rb b/spec/models/issue_spec.rb
index bb5033c1628..5f901262598 100644
--- a/spec/models/issue_spec.rb
+++ b/spec/models/issue_spec.rb
@@ -765,22 +765,4 @@ describe Issue do
       expect(described_class.public_only).to eq([public_issue])
     end
   end
-
-  describe '#update_project_counter_caches?' do
-    it 'returns true when the state changes' do
-      subject.state = 'closed'
-
-      expect(subject.update_project_counter_caches?).to eq(true)
-    end
-
-    it 'returns true when the confidential flag changes' do
-      subject.confidential = true
-
-      expect(subject.update_project_counter_caches?).to eq(true)
-    end
-
-    it 'returns false when the state or confidential flag did not change' do
-      expect(subject.update_project_counter_caches?).to eq(false)
-    end
-  end
 end
diff --git a/spec/models/key_spec.rb b/spec/models/key_spec.rb
index 81c2057e175..4cd9e3f4f1d 100644
--- a/spec/models/key_spec.rb
+++ b/spec/models/key_spec.rb
@@ -166,4 +166,27 @@ describe Key, :mailer do
       expect(key.public_key.key_text).to eq(valid_key)
     end
   end
+
+  describe '#refresh_user_cache', :use_clean_rails_memory_store_caching do
+    context 'when the key belongs to a user' do
+      it 'refreshes the keys count cache for the user' do
+        expect_any_instance_of(Users::KeysCountService)
+          .to receive(:refresh_cache)
+          .and_call_original
+
+        key = create(:personal_key)
+
+        expect(Users::KeysCountService.new(key.user).count).to eq(1)
+      end
+    end
+
+    context 'when the key does not belong to a user' do
+      it 'does nothing' do
+        expect_any_instance_of(Users::KeysCountService)
+          .not_to receive(:refresh_cache)
+
+        create(:key)
+      end
+    end
+  end
 end
diff --git a/spec/models/merge_request_spec.rb b/spec/models/merge_request_spec.rb
index 476a2697605..d250ad50713 100644
--- a/spec/models/merge_request_spec.rb
+++ b/spec/models/merge_request_spec.rb
@@ -1755,39 +1755,12 @@ describe MergeRequest do
     end
   end
 
-  describe '#fetch_ref' do
-    it 'sets "ref_fetched" flag to true' do
-      subject.update!(ref_fetched: nil)
+  describe '#fetch_ref!' do
+    it 'fetches the ref correctly' do
+      expect { subject.target_project.repository.delete_refs(subject.ref_path) }.not_to raise_error
 
-      subject.fetch_ref
-
-      expect(subject.reload.ref_fetched).to be_truthy
-    end
-  end
-
-  describe '#ref_fetched?' do
-    it 'does not perform git operation when value is cached' do
-      subject.ref_fetched = true
-
-      expect_any_instance_of(Repository).not_to receive(:ref_exists?)
-      expect(subject.ref_fetched?).to be_truthy
-    end
-
-    it 'caches the value when ref exists but value is not cached' do
-      subject.update!(ref_fetched: nil)
-      allow_any_instance_of(Repository).to receive(:ref_exists?)
-        .and_return(true)
-
-      expect(subject.ref_fetched?).to be_truthy
-      expect(subject.reload.ref_fetched).to be_truthy
-    end
-
-    it 'returns false when ref does not exist' do
-      subject.update!(ref_fetched: nil)
-      allow_any_instance_of(Repository).to receive(:ref_exists?)
-        .and_return(false)
-
-      expect(subject.ref_fetched?).to be_falsey
+      subject.fetch_ref!
+      expect(subject.target_project.repository.ref_exists?(subject.ref_path)).to be_truthy
     end
   end
 
@@ -1799,16 +1772,4 @@ describe MergeRequest do
         .to change { project.open_merge_requests_count }.from(1).to(0)
     end
   end
-
-  describe '#update_project_counter_caches?' do
-    it 'returns true when the state changes' do
-      subject.state = 'closed'
-
-      expect(subject.update_project_counter_caches?).to eq(true)
-    end
-
-    it 'returns false when the state did not change' do
-      expect(subject.update_project_counter_caches?).to eq(false)
-    end
-  end
 end
diff --git a/spec/models/project_custom_attribute_spec.rb b/spec/models/project_custom_attribute_spec.rb
new file mode 100644
index 00000000000..669de5506bc
--- /dev/null
+++ b/spec/models/project_custom_attribute_spec.rb
@@ -0,0 +1,16 @@
+require 'spec_helper'
+
+describe ProjectCustomAttribute do
+  describe 'assocations' do
+    it { is_expected.to belong_to(:project) }
+  end
+
+  describe 'validations' do
+    subject { build :project_custom_attribute }
+
+    it { is_expected.to validate_presence_of(:project) }
+    it { is_expected.to validate_presence_of(:key) }
+    it { is_expected.to validate_presence_of(:value) }
+    it { is_expected.to validate_uniqueness_of(:key).scoped_to(:project_id) }
+  end
+end
diff --git a/spec/models/project_services/chat_message/issue_message_spec.rb b/spec/models/project_services/chat_message/issue_message_spec.rb
index d37726dc3f1..f7a35fdc88a 100644
--- a/spec/models/project_services/chat_message/issue_message_spec.rb
+++ b/spec/models/project_services/chat_message/issue_message_spec.rb
@@ -66,6 +66,19 @@ describe ChatMessage::IssueMessage do
         expect(subject.attachments).to be_empty
       end
     end
+
+    context 'reopen' do
+      before do
+        args[:object_attributes][:action] = 'reopen'
+        args[:object_attributes][:state] = 'opened'
+      end
+
+      it 'returns a message regarding reopening of issues' do
+        expect(subject.pretext)
+          .to eq('[<http://somewhere.com|project_name>] Issue <http://url.com|#100 Issue title> opened by Test User (test.user)')
+        expect(subject.attachments).to be_empty
+      end
+    end
   end
 
   context 'with markdown' do
diff --git a/spec/models/project_services/kubernetes_service_spec.rb b/spec/models/project_services/kubernetes_service_spec.rb
index 00de536a18b..1c629155e1e 100644
--- a/spec/models/project_services/kubernetes_service_spec.rb
+++ b/spec/models/project_services/kubernetes_service_spec.rb
@@ -7,7 +7,7 @@ describe KubernetesService, :use_clean_rails_memory_store_caching do
   let(:project) { build_stubbed(:kubernetes_project) }
   let(:service) { project.kubernetes_service }
 
-  describe "Associations" do
+  describe 'Associations' do
     it { is_expected.to belong_to :project }
   end
 
@@ -145,7 +145,7 @@ describe KubernetesService, :use_clean_rails_memory_store_caching do
     let(:discovery_url) { 'https://kubernetes.example.com/api/v1' }
 
     before do
-      stub_kubeclient_discover
+      stub_kubeclient_discover(service.api_url)
     end
 
     context 'with path prefix in api_url' do
@@ -153,7 +153,7 @@ describe KubernetesService, :use_clean_rails_memory_store_caching do
 
       it 'tests with the prefix' do
         service.api_url = 'https://kubernetes.example.com/prefix'
-        stub_kubeclient_discover
+        stub_kubeclient_discover(service.api_url)
 
         expect(service.test[:success]).to be_truthy
         expect(WebMock).to have_requested(:get, discovery_url).once
diff --git a/spec/models/project_spec.rb b/spec/models/project_spec.rb
index e8588975118..f7f19d464d1 100644
--- a/spec/models/project_spec.rb
+++ b/spec/models/project_spec.rb
@@ -79,6 +79,7 @@ describe Project do
     it { is_expected.to have_many(:pipeline_schedules) }
     it { is_expected.to have_many(:members_and_requesters) }
     it { is_expected.to have_one(:cluster) }
+    it { is_expected.to have_many(:custom_attributes).class_name('ProjectCustomAttribute') }
 
     context 'after initialized' do
       it "has a project_feature" do
@@ -276,6 +277,12 @@ describe Project do
 
         expect(project).to be_valid
       end
+
+      it 'allows a path ending in a period' do
+        project = build(:project, path: 'foo.')
+
+        expect(project).to be_valid
+      end
     end
   end
 
@@ -876,20 +883,14 @@ describe Project do
 
     context 'when avatar file is uploaded' do
       let(:project) { create(:project, :public, :with_avatar) }
-      let(:avatar_path) { "/uploads/-/system/project/avatar/#{project.id}/dk.png" }
-      let(:gitlab_host) { "http://#{Gitlab.config.gitlab.host}" }
 
       it 'shows correct url' do
-        expect(project.avatar_url).to eq(avatar_path)
-        expect(project.avatar_url(only_path: false)).to eq([gitlab_host, avatar_path].join)
-
-        allow(ActionController::Base).to receive(:asset_host).and_return(gitlab_host)
-
-        expect(project.avatar_url).to eq([gitlab_host, avatar_path].join)
+        expect(project.avatar_url).to eq(project.avatar.url)
+        expect(project.avatar_url(only_path: false)).to eq([Gitlab.config.gitlab.url, project.avatar.url].join)
       end
     end
 
-    context 'When avatar file in git' do
+    context 'when avatar file in git' do
       before do
         allow(project).to receive(:avatar_in_git) { true }
       end
@@ -1937,6 +1938,24 @@ describe Project do
         expect(second_fork.fork_source).to eq(project)
       end
     end
+
+    describe '#lfs_storage_project' do
+      it 'returns self for non-forks' do
+        expect(project.lfs_storage_project).to eq project
+      end
+
+      it 'returns the fork network root for forks' do
+        second_fork = fork_project(forked_project)
+
+        expect(second_fork.lfs_storage_project).to eq project
+      end
+
+      it 'returns self when fork_source is nil' do
+        expect(forked_project).to receive(:fork_source).and_return(nil)
+
+        expect(forked_project.lfs_storage_project).to eq forked_project
+      end
+    end
   end
 
   describe '#pushes_since_gc' do
@@ -3009,4 +3028,77 @@ describe Project do
       end
     end
   end
+
+  describe '#after_import' do
+    let(:project) { build(:project) }
+
+    it 'runs the correct hooks' do
+      expect(project.repository).to receive(:after_import)
+      expect(project).to receive(:import_finish)
+      expect(project).to receive(:update_project_counter_caches)
+      expect(project).to receive(:remove_import_jid)
+
+      project.after_import
+    end
+  end
+
+  describe '#update_project_counter_caches' do
+    let(:project) { create(:project) }
+
+    it 'updates all project counter caches' do
+      expect_any_instance_of(Projects::OpenIssuesCountService)
+        .to receive(:refresh_cache)
+        .and_call_original
+
+      expect_any_instance_of(Projects::OpenMergeRequestsCountService)
+        .to receive(:refresh_cache)
+        .and_call_original
+
+      project.update_project_counter_caches
+    end
+  end
+
+  describe '#remove_import_jid', :clean_gitlab_redis_cache do
+    let(:project) {  }
+
+    context 'without an import JID' do
+      it 'does nothing' do
+        project = create(:project)
+
+        expect(Gitlab::SidekiqStatus)
+          .not_to receive(:unset)
+
+        project.remove_import_jid
+      end
+    end
+
+    context 'with an import JID' do
+      it 'unsets the import JID' do
+        project = create(:project, import_jid: '123')
+
+        expect(Gitlab::SidekiqStatus)
+          .to receive(:unset)
+          .with('123')
+          .and_call_original
+
+        project.remove_import_jid
+
+        expect(project.import_jid).to be_nil
+      end
+    end
+  end
+
+  describe '#wiki_repository_exists?' do
+    it 'returns true when the wiki repository exists' do
+      project = create(:project, :wiki_repo)
+
+      expect(project.wiki_repository_exists?).to eq(true)
+    end
+
+    it 'returns false when the wiki repository does not exist' do
+      project = create(:project)
+
+      expect(project.wiki_repository_exists?).to eq(false)
+    end
+  end
 end
diff --git a/spec/models/project_wiki_spec.rb b/spec/models/project_wiki_spec.rb
index 3d46434fc27..929086305ba 100644
--- a/spec/models/project_wiki_spec.rb
+++ b/spec/models/project_wiki_spec.rb
@@ -10,6 +10,10 @@ describe ProjectWiki do
 
   subject { project_wiki }
 
+  it { is_expected.to delegate_method(:empty?).to :pages }
+  it { is_expected.to delegate_method(:repository_storage_path).to :project }
+  it { is_expected.to delegate_method(:hashed_storage?).to :project }
+
   describe "#path_with_namespace" do
     it "returns the project path with namespace with the .wiki extension" do
       expect(subject.path_with_namespace).to eq(project.full_path + '.wiki')
diff --git a/spec/models/user_spec.rb b/spec/models/user_spec.rb
index e0896d64c8f..86647ddf6ce 100644
--- a/spec/models/user_spec.rb
+++ b/spec/models/user_spec.rb
@@ -642,16 +642,40 @@ describe User do
   end
 
   describe 'groups' do
+    let(:user) { create(:user) }
+    let(:group) { create(:group) }
+
     before do
-      @user = create :user
-      @group = create :group
-      @group.add_owner(@user)
+      group.add_owner(user)
     end
 
-    it { expect(@user.several_namespaces?).to be_truthy }
-    it { expect(@user.authorized_groups).to eq([@group]) }
-    it { expect(@user.owned_groups).to eq([@group]) }
-    it { expect(@user.namespaces).to match_array([@user.namespace, @group]) }
+    it { expect(user.several_namespaces?).to be_truthy }
+    it { expect(user.authorized_groups).to eq([group]) }
+    it { expect(user.owned_groups).to eq([group]) }
+    it { expect(user.namespaces).to contain_exactly(user.namespace, group) }
+    it { expect(user.manageable_namespaces).to contain_exactly(user.namespace, group) }
+
+    context 'with child groups', :nested_groups do
+      let!(:subgroup) { create(:group, parent: group) }
+
+      describe '#manageable_namespaces' do
+        it 'includes all the namespaces the user can manage' do
+          expect(user.manageable_namespaces).to contain_exactly(user.namespace, group, subgroup)
+        end
+      end
+
+      describe '#manageable_groups' do
+        it 'includes all the namespaces the user can manage' do
+          expect(user.manageable_groups).to contain_exactly(group, subgroup)
+        end
+
+        it 'does not include duplicates if a membership was added for the subgroup' do
+          subgroup.add_owner(user)
+
+          expect(user.manageable_groups).to contain_exactly(group, subgroup)
+        end
+      end
+    end
   end
 
   describe 'group multiple owners' do
@@ -788,21 +812,23 @@ describe User do
       end
 
       it "creates external user by default" do
-        user = build(:user)
+        user = create(:user)
 
         expect(user.external).to be_truthy
+        expect(user.can_create_group).to be_falsey
+        expect(user.projects_limit).to be 0
       end
 
       describe 'with default overrides' do
         it "creates a non-external user" do
-          user = build(:user, external: false)
+          user = create(:user, external: false)
 
           expect(user.external).to be_falsey
         end
       end
     end
 
-    describe '#require_ssh_key?' do
+    describe '#require_ssh_key?', :use_clean_rails_memory_store_caching do
       protocol_and_expectation = {
         'http' => false,
         'ssh' => true,
@@ -817,6 +843,12 @@ describe User do
           expect(user.require_ssh_key?).to eq(expected)
         end
       end
+
+      it 'returns false when the user has 1 or more SSH keys' do
+        key = create(:personal_key)
+
+        expect(key.user.require_ssh_key?).to eq(false)
+      end
     end
   end
 
@@ -839,6 +871,19 @@ describe User do
     end
   end
 
+  describe '.by_any_email' do
+    it 'returns an ActiveRecord::Relation' do
+      expect(described_class.by_any_email('foo@example.com'))
+        .to be_a_kind_of(ActiveRecord::Relation)
+    end
+
+    it 'returns a relation of users' do
+      user = create(:user)
+
+      expect(described_class.by_any_email(user.email)).to eq([user])
+    end
+  end
+
   describe '.search' do
     let!(:user) { create(:user, name: 'user', username: 'usern', email: 'email@gmail.com') }
     let!(:user2) { create(:user, name: 'user name', username: 'username', email: 'someemail@gmail.com') }
@@ -1134,16 +1179,9 @@ describe User do
     let(:user) { create(:user, :with_avatar) }
 
     context 'when avatar file is uploaded' do
-      let(:gitlab_host) { "http://#{Gitlab.config.gitlab.host}" }
-      let(:avatar_path) { "/uploads/-/system/user/avatar/#{user.id}/dk.png" }
-
       it 'shows correct avatar url' do
-        expect(user.avatar_url).to eq(avatar_path)
-        expect(user.avatar_url(only_path: false)).to eq([gitlab_host, avatar_path].join)
-
-        allow(ActionController::Base).to receive(:asset_host).and_return(gitlab_host)
-
-        expect(user.avatar_url).to eq([gitlab_host, avatar_path].join)
+        expect(user.avatar_url).to eq(user.avatar.url)
+        expect(user.avatar_url(only_path: false)).to eq([Gitlab.config.gitlab.url, user.avatar.url].join)
       end
     end
   end
diff --git a/spec/policies/ci/build_policy_spec.rb b/spec/policies/ci/build_policy_spec.rb
index 8e1bc3d1543..298a9d16425 100644
--- a/spec/policies/ci/build_policy_spec.rb
+++ b/spec/policies/ci/build_policy_spec.rb
@@ -150,5 +150,82 @@ describe Ci::BuildPolicy do
         end
       end
     end
+
+    describe 'rules for erase build' do
+      let(:project) { create(:project, :repository) }
+      let(:build) { create(:ci_build, pipeline: pipeline, ref: 'some-ref', user: owner) }
+
+      context 'when a developer erases a build' do
+        before do
+          project.add_developer(user)
+        end
+
+        context 'when developers can push to the branch' do
+          before do
+            create(:protected_branch, :developers_can_push,
+                   name: build.ref, project: project)
+          end
+
+          context 'when the build was created by the developer' do
+            let(:owner) { user }
+
+            it { expect(policy).to be_allowed :erase_build }
+          end
+
+          context 'when the build was created by the other' do
+            let(:owner) { create(:user) }
+
+            it { expect(policy).to be_disallowed :erase_build }
+          end
+        end
+
+        context 'when no one can push or merge to the branch' do
+          let(:owner) { user }
+
+          before do
+            create(:protected_branch, :no_one_can_push, :no_one_can_merge,
+                   name: build.ref, project: project)
+          end
+
+          it { expect(policy).to be_disallowed :erase_build }
+        end
+      end
+
+      context 'when a master erases a build' do
+        before do
+          project.add_master(user)
+        end
+
+        context 'when masters can push to the branch' do
+          before do
+            create(:protected_branch, :masters_can_push,
+                   name: build.ref, project: project)
+          end
+
+          context 'when the build was created by the master' do
+            let(:owner) { user }
+
+            it { expect(policy).to be_allowed :erase_build }
+          end
+
+          context 'when the build was created by the other' do
+            let(:owner) { create(:user) }
+
+            it { expect(policy).to be_allowed :erase_build }
+          end
+        end
+
+        context 'when no one can push or merge to the branch' do
+          let(:owner) { user }
+
+          before do
+            create(:protected_branch, :no_one_can_push, :no_one_can_merge,
+                   name: build.ref, project: project)
+          end
+
+          it { expect(policy).to be_disallowed :erase_build }
+        end
+      end
+    end
   end
 end
diff --git a/spec/policies/gcp/cluster_policy_spec.rb b/spec/policies/clusters/cluster_policy_spec.rb
index e213aa3d557..4207f42b07f 100644
--- a/spec/policies/gcp/cluster_policy_spec.rb
+++ b/spec/policies/clusters/cluster_policy_spec.rb
@@ -1,8 +1,8 @@
 require 'spec_helper'
 
-describe Gcp::ClusterPolicy, :models do
-  set(:project) { create(:project) }
-  set(:cluster) { create(:gcp_cluster, project: project) }
+describe Clusters::ClusterPolicy, :models do
+  let(:cluster) { create(:cluster, :project) }
+  let(:project) { cluster.project }
   let(:user) { create(:user) }
   let(:policy) { described_class.new(user, cluster) }
 
diff --git a/spec/presenters/gcp/cluster_presenter_spec.rb b/spec/presenters/clusters/cluster_presenter_spec.rb
index 8d86dc31582..48d4f3671c5 100644
--- a/spec/presenters/gcp/cluster_presenter_spec.rb
+++ b/spec/presenters/clusters/cluster_presenter_spec.rb
@@ -1,8 +1,7 @@
 require 'spec_helper'
 
-describe Gcp::ClusterPresenter do
-  let(:project) { create(:project) }
-  let(:cluster) { create(:gcp_cluster, project: project) }
+describe Clusters::ClusterPresenter do
+  let(:cluster) { create(:cluster, :provided_by_gcp) }
 
   subject(:presenter) do
     described_class.new(cluster)
@@ -22,14 +21,14 @@ describe Gcp::ClusterPresenter do
     end
 
     it 'forwards missing methods to cluster' do
-      expect(presenter.gcp_cluster_zone).to eq(cluster.gcp_cluster_zone)
+      expect(presenter.status).to eq(cluster.status)
     end
   end
 
   describe '#gke_cluster_url' do
     subject { described_class.new(cluster).gke_cluster_url }
 
-    it { is_expected.to include(cluster.gcp_cluster_zone) }
-    it { is_expected.to include(cluster.gcp_cluster_name) }
+    it { is_expected.to include(cluster.provider.zone) }
+    it { is_expected.to include(cluster.name) }
   end
 end
diff --git a/spec/requests/api/groups_spec.rb b/spec/requests/api/groups_spec.rb
index 8ce9fcc80bf..04a658cd6c3 100644
--- a/spec/requests/api/groups_spec.rb
+++ b/spec/requests/api/groups_spec.rb
@@ -427,6 +427,142 @@ describe API::Groups do
     end
   end
 
+  describe 'GET /groups/:id/subgroups', :nested_groups do
+    let!(:subgroup1) { create(:group, parent: group1) }
+    let!(:subgroup2) { create(:group, :private, parent: group1) }
+    let!(:subgroup3) { create(:group, :private, parent: group2) }
+
+    context 'when unauthenticated' do
+      it 'returns only public subgroups' do
+        get api("/groups/#{group1.id}/subgroups")
+
+        expect(response).to have_gitlab_http_status(200)
+        expect(response).to include_pagination_headers
+        expect(json_response).to be_an Array
+        expect(json_response.length).to eq(1)
+        expect(json_response.first['id']).to eq(subgroup1.id)
+        expect(json_response.first['parent_id']).to eq(group1.id)
+      end
+
+      it 'returns 404 for a private group' do
+        get api("/groups/#{group2.id}/subgroups")
+
+        expect(response).to have_gitlab_http_status(404)
+      end
+    end
+
+    context 'when authenticated as user' do
+      context 'when user is not member of a public group' do
+        it 'returns no subgroups for the public group' do
+          get api("/groups/#{group1.id}/subgroups", user2)
+
+          expect(response).to have_gitlab_http_status(200)
+          expect(json_response).to be_an Array
+          expect(json_response.length).to eq(0)
+        end
+
+        context 'when using all_available in request' do
+          it 'returns public subgroups' do
+            get api("/groups/#{group1.id}/subgroups", user2), all_available: true
+
+            expect(response).to have_gitlab_http_status(200)
+            expect(json_response).to be_an Array
+            expect(json_response.length).to eq(1)
+            expect(json_response[0]['id']).to eq(subgroup1.id)
+            expect(json_response[0]['parent_id']).to eq(group1.id)
+          end
+        end
+      end
+
+      context 'when user is not member of a private group' do
+        it 'returns 404 for the private group' do
+          get api("/groups/#{group2.id}/subgroups", user1)
+
+          expect(response).to have_gitlab_http_status(404)
+        end
+      end
+
+      context 'when user is member of public group' do
+        before do
+          group1.add_guest(user2)
+        end
+
+        it 'returns private subgroups' do
+          get api("/groups/#{group1.id}/subgroups", user2)
+
+          expect(response).to have_gitlab_http_status(200)
+          expect(response).to include_pagination_headers
+          expect(json_response).to be_an Array
+          expect(json_response.length).to eq(2)
+          private_subgroups = json_response.select { |group| group['visibility'] == 'private' }
+          expect(private_subgroups.length).to eq(1)
+          expect(private_subgroups.first['id']).to eq(subgroup2.id)
+          expect(private_subgroups.first['parent_id']).to eq(group1.id)
+        end
+
+        context 'when using statistics in request' do
+          it 'does not include statistics' do
+            get api("/groups/#{group1.id}/subgroups", user2), statistics: true
+
+            expect(response).to have_gitlab_http_status(200)
+            expect(json_response).to be_an Array
+            expect(json_response.first).not_to include 'statistics'
+          end
+        end
+      end
+
+      context 'when user is member of private group' do
+        before do
+          group2.add_guest(user1)
+        end
+
+        it 'returns subgroups' do
+          get api("/groups/#{group2.id}/subgroups", user1)
+
+          expect(response).to have_gitlab_http_status(200)
+          expect(json_response).to be_an Array
+          expect(json_response.length).to eq(1)
+          expect(json_response.first['id']).to eq(subgroup3.id)
+          expect(json_response.first['parent_id']).to eq(group2.id)
+        end
+      end
+    end
+
+    context 'when authenticated as admin' do
+      it 'returns private subgroups of a public group' do
+        get api("/groups/#{group1.id}/subgroups", admin)
+
+        expect(response).to have_gitlab_http_status(200)
+        expect(json_response).to be_an Array
+        expect(json_response.length).to eq(2)
+      end
+
+      it 'returns subgroups of a private group' do
+        get api("/groups/#{group2.id}/subgroups", admin)
+
+        expect(response).to have_gitlab_http_status(200)
+        expect(json_response).to be_an Array
+        expect(json_response.length).to eq(1)
+      end
+
+      it 'does not include statistics by default' do
+        get api("/groups/#{group1.id}/subgroups", admin)
+
+        expect(response).to have_gitlab_http_status(200)
+        expect(json_response).to be_an Array
+        expect(json_response.first).not_to include('statistics')
+      end
+
+      it 'includes statistics if requested' do
+        get api("/groups/#{group1.id}/subgroups", admin), statistics: true
+
+        expect(response).to have_gitlab_http_status(200)
+        expect(json_response).to be_an Array
+        expect(json_response.first).to include('statistics')
+      end
+    end
+  end
+
   describe "POST /groups" do
     context "when authenticated as user without group permissions" do
       it "does not create group" do
@@ -618,4 +754,14 @@ describe API::Groups do
       end
     end
   end
+
+  it_behaves_like 'custom attributes endpoints', 'groups' do
+    let(:attributable) { group1 }
+    let(:other_attributable) { group2 }
+    let(:user) { user1 }
+
+    before do
+      group2.add_owner(user1)
+    end
+  end
 end
diff --git a/spec/requests/api/internal_spec.rb b/spec/requests/api/internal_spec.rb
index d919899282d..34ecdd1e164 100644
--- a/spec/requests/api/internal_spec.rb
+++ b/spec/requests/api/internal_spec.rb
@@ -203,18 +203,44 @@ describe API::Internal do
       end
 
       context 'with env passed as a JSON' do
-        it 'sets env in RequestStore' do
-          expect(Gitlab::Git::Env).to receive(:set).with({
-            'GIT_OBJECT_DIRECTORY' => 'foo',
-            'GIT_ALTERNATE_OBJECT_DIRECTORIES' => 'bar'
-          })
+        context 'when relative path envs are not set' do
+          it 'sets env in RequestStore' do
+            expect(Gitlab::Git::Env).to receive(:set).with({
+              'GIT_OBJECT_DIRECTORY' => 'foo',
+              'GIT_ALTERNATE_OBJECT_DIRECTORIES' => 'bar'
+            })
+
+            push(key, project.wiki, env: {
+              GIT_OBJECT_DIRECTORY: 'foo',
+              GIT_ALTERNATE_OBJECT_DIRECTORIES: 'bar'
+            }.to_json)
 
-          push(key, project.wiki, env: {
-            GIT_OBJECT_DIRECTORY: 'foo',
-            GIT_ALTERNATE_OBJECT_DIRECTORIES: 'bar'
-          }.to_json)
+            expect(response).to have_gitlab_http_status(200)
+          end
+        end
 
-          expect(response).to have_gitlab_http_status(200)
+        context 'when relative path envs are set' do
+          it 'sets env in RequestStore' do
+            obj_dir_relative = './objects'
+            alt_obj_dirs_relative = ['./alt-objects-1', './alt-objects-2']
+            repo_path = project.wiki.repository.path_to_repo
+
+            expect(Gitlab::Git::Env).to receive(:set).with({
+              'GIT_OBJECT_DIRECTORY' => File.join(repo_path, obj_dir_relative),
+              'GIT_ALTERNATE_OBJECT_DIRECTORIES' => alt_obj_dirs_relative.map { |d| File.join(repo_path, d) },
+              'GIT_OBJECT_DIRECTORY_RELATIVE' => obj_dir_relative,
+              'GIT_ALTERNATE_OBJECT_DIRECTORIES_RELATIVE' => alt_obj_dirs_relative
+            })
+
+            push(key, project.wiki, env: {
+              GIT_OBJECT_DIRECTORY: 'foo',
+              GIT_ALTERNATE_OBJECT_DIRECTORIES: 'bar',
+              GIT_OBJECT_DIRECTORY_RELATIVE: obj_dir_relative,
+              GIT_ALTERNATE_OBJECT_DIRECTORIES_RELATIVE: alt_obj_dirs_relative
+            }.to_json)
+
+            expect(response).to have_gitlab_http_status(200)
+          end
         end
       end
 
diff --git a/spec/requests/api/jobs_spec.rb b/spec/requests/api/jobs_spec.rb
index 1765907c1b4..2a83213e87a 100644
--- a/spec/requests/api/jobs_spec.rb
+++ b/spec/requests/api/jobs_spec.rb
@@ -500,7 +500,11 @@ describe API::Jobs do
   end
 
   describe 'POST /projects/:id/jobs/:job_id/erase' do
+    let(:role) { :master }
+
     before do
+      project.team << [user, role]
+
       post api("/projects/#{project.id}/jobs/#{job.id}/erase", user)
     end
 
@@ -529,6 +533,23 @@ describe API::Jobs do
         expect(response).to have_gitlab_http_status(403)
       end
     end
+
+    context 'when a developer erases a build' do
+      let(:role) { :developer }
+      let(:job) { create(:ci_build, :trace, :artifacts, :success, project: project, pipeline: pipeline, user: owner) }
+
+      context 'when the build was created by the developer' do
+        let(:owner) { user }
+
+        it { expect(response).to have_gitlab_http_status(201) }
+      end
+
+      context 'when the build was created by the other' do
+        let(:owner) { create(:user) }
+
+        it { expect(response).to have_gitlab_http_status(403) }
+      end
+    end
   end
 
   describe 'POST /projects/:id/jobs/:job_id/artifacts/keep' do
diff --git a/spec/requests/api/merge_requests_spec.rb b/spec/requests/api/merge_requests_spec.rb
index 024cfe8b372..a928ba79a4d 100644
--- a/spec/requests/api/merge_requests_spec.rb
+++ b/spec/requests/api/merge_requests_spec.rb
@@ -435,17 +435,7 @@ describe API::MergeRequests do
       expect(json_response['merge_status']).to eq('can_be_merged')
       expect(json_response['should_close_merge_request']).to be_falsy
       expect(json_response['force_close_merge_request']).to be_falsy
-    end
-
-    it "returns merge_request" do
-      get api("/projects/#{project.id}/merge_requests/#{merge_request.iid}", user)
-      expect(response).to have_gitlab_http_status(200)
-      expect(json_response['title']).to eq(merge_request.title)
-      expect(json_response['iid']).to eq(merge_request.iid)
-      expect(json_response['work_in_progress']).to eq(false)
-      expect(json_response['merge_status']).to eq('can_be_merged')
-      expect(json_response['should_close_merge_request']).to be_falsy
-      expect(json_response['force_close_merge_request']).to be_falsy
+      expect(json_response['changes_count']).to eq(merge_request.merge_request_diff.real_size)
     end
 
     it "returns a 404 error if merge_request_iid not found" do
@@ -462,12 +452,32 @@ describe API::MergeRequests do
     context 'Work in Progress' do
       let!(:merge_request_wip) { create(:merge_request, author: user, assignee: user, source_project: project, target_project: project, title: "WIP: Test", created_at: base_time + 1.second) }
 
-      it "returns merge_request" do
+      it "returns merge request" do
         get api("/projects/#{project.id}/merge_requests/#{merge_request_wip.iid}", user)
+
         expect(response).to have_gitlab_http_status(200)
         expect(json_response['work_in_progress']).to eq(true)
       end
     end
+
+    context 'when a merge request has more than the changes limit' do
+      it "returns a string indicating that more changes were made" do
+        stub_const('Commit::DIFF_HARD_LIMIT_FILES', 5)
+
+        merge_request_overflow = create(:merge_request, :simple,
+                                        author: user,
+                                        assignee: user,
+                                        source_project: project,
+                                        source_branch: 'expand-collapse-files',
+                                        target_project: project,
+                                        target_branch: 'master')
+
+        get api("/projects/#{project.id}/merge_requests/#{merge_request_overflow.iid}", user)
+
+        expect(response).to have_gitlab_http_status(200)
+        expect(json_response['changes_count']).to eq('5+')
+      end
+    end
   end
 
   describe 'GET /projects/:id/merge_requests/:merge_request_iid/commits' do
@@ -623,8 +633,6 @@ describe API::MergeRequests do
 
       before do
         forked_project.add_reporter(user2)
-
-        allow_any_instance_of(MergeRequest).to receive(:write_ref)
       end
 
       it "returns merge_request" do
diff --git a/spec/requests/api/pages_domains_spec.rb b/spec/requests/api/pages_domains_spec.rb
index d13b3a958c9..d412b045e9f 100644
--- a/spec/requests/api/pages_domains_spec.rb
+++ b/spec/requests/api/pages_domains_spec.rb
@@ -3,6 +3,7 @@ require 'rails_helper'
 describe API::PagesDomains do
   set(:project) { create(:project) }
   set(:user) { create(:user) }
+  set(:admin) { create(:admin) }
 
   set(:pages_domain) { create(:pages_domain, domain: 'www.domain.test', project: project) }
   set(:pages_domain_secure) { create(:pages_domain, :with_certificate, :with_key, domain: 'ssl.domain.test', project: project) }
@@ -23,12 +24,49 @@ describe API::PagesDomains do
     allow(Gitlab.config.pages).to receive(:enabled).and_return(true)
   end
 
+  describe 'GET /pages/domains' do
+    context 'when pages is disabled' do
+      before do
+        allow(Gitlab.config.pages).to receive(:enabled).and_return(false)
+      end
+
+      it_behaves_like '404 response' do
+        let(:request) { get api('/pages/domains', admin) }
+      end
+    end
+
+    context 'when pages is enabled' do
+      context 'when authenticated as an admin' do
+        it 'returns paginated all pages domains' do
+          get api('/pages/domains', admin)
+
+          expect(response).to have_gitlab_http_status(200)
+          expect(response).to match_response_schema('public_api/v4/pages_domain_basics')
+          expect(response).to include_pagination_headers
+          expect(json_response).to be_an Array
+          expect(json_response.size).to eq(3)
+          expect(json_response.last).to have_key('domain')
+          expect(json_response.last).to have_key('certificate_expiration')
+          expect(json_response.last['certificate_expiration']['expired']).to be true
+          expect(json_response.first).not_to have_key('certificate_expiration')
+        end
+      end
+
+      context 'when authenticated as a non-member' do
+        it_behaves_like '403 response' do
+          let(:request) { get api('/pages/domains', user) }
+        end
+      end
+    end
+  end
+
   describe 'GET /projects/:project_id/pages/domains' do
     shared_examples_for 'get pages domains' do
       it 'returns paginated pages domains' do
         get api(route, user)
 
         expect(response).to have_gitlab_http_status(200)
+        expect(response).to match_response_schema('public_api/v4/pages_domains')
         expect(response).to include_pagination_headers
         expect(json_response).to be_an Array
         expect(json_response.size).to eq(3)
@@ -99,6 +137,7 @@ describe API::PagesDomains do
         get api(route_domain, user)
 
         expect(response).to have_gitlab_http_status(200)
+        expect(response).to match_response_schema('public_api/v4/pages_domain/detail')
         expect(json_response['domain']).to eq(pages_domain.domain)
         expect(json_response['url']).to eq(pages_domain.url)
         expect(json_response['certificate']).to be_nil
@@ -108,6 +147,7 @@ describe API::PagesDomains do
         get api(route_secure_domain, user)
 
         expect(response).to have_gitlab_http_status(200)
+        expect(response).to match_response_schema('public_api/v4/pages_domain/detail')
         expect(json_response['domain']).to eq(pages_domain_secure.domain)
         expect(json_response['url']).to eq(pages_domain_secure.url)
         expect(json_response['certificate']['subject']).to eq(pages_domain_secure.subject)
@@ -118,6 +158,7 @@ describe API::PagesDomains do
         get api(route_expired_domain, user)
 
         expect(response).to have_gitlab_http_status(200)
+        expect(response).to match_response_schema('public_api/v4/pages_domain/detail')
         expect(json_response['certificate']['expired']).to be true
       end
     end
@@ -187,6 +228,7 @@ describe API::PagesDomains do
         pages_domain = PagesDomain.find_by(domain: json_response['domain'])
 
         expect(response).to have_gitlab_http_status(201)
+        expect(response).to match_response_schema('public_api/v4/pages_domain/detail')
         expect(pages_domain.domain).to eq(params[:domain])
         expect(pages_domain.certificate).to be_nil
         expect(pages_domain.key).to be_nil
@@ -197,6 +239,7 @@ describe API::PagesDomains do
         pages_domain = PagesDomain.find_by(domain: json_response['domain'])
 
         expect(response).to have_gitlab_http_status(201)
+        expect(response).to match_response_schema('public_api/v4/pages_domain/detail')
         expect(pages_domain.domain).to eq(params_secure[:domain])
         expect(pages_domain.certificate).to eq(params_secure[:certificate])
         expect(pages_domain.key).to eq(params_secure[:key])
@@ -270,6 +313,7 @@ describe API::PagesDomains do
         pages_domain_secure.reload
 
         expect(response).to have_gitlab_http_status(200)
+        expect(response).to match_response_schema('public_api/v4/pages_domain/detail')
         expect(pages_domain_secure.certificate).to be_nil
         expect(pages_domain_secure.key).to be_nil
       end
@@ -279,6 +323,7 @@ describe API::PagesDomains do
         pages_domain.reload
 
         expect(response).to have_gitlab_http_status(200)
+        expect(response).to match_response_schema('public_api/v4/pages_domain/detail')
         expect(pages_domain.certificate).to eq(params_secure[:certificate])
         expect(pages_domain.key).to eq(params_secure[:key])
       end
@@ -288,6 +333,7 @@ describe API::PagesDomains do
         pages_domain_expired.reload
 
         expect(response).to have_gitlab_http_status(200)
+        expect(response).to match_response_schema('public_api/v4/pages_domain/detail')
         expect(pages_domain_expired.certificate).to eq(params_secure[:certificate])
         expect(pages_domain_expired.key).to eq(params_secure[:key])
       end
@@ -297,6 +343,7 @@ describe API::PagesDomains do
         pages_domain_secure.reload
 
         expect(response).to have_gitlab_http_status(200)
+        expect(response).to match_response_schema('public_api/v4/pages_domain/detail')
         expect(pages_domain_secure.certificate).to eq(params_secure_nokey[:certificate])
       end
 
diff --git a/spec/requests/api/projects_spec.rb b/spec/requests/api/projects_spec.rb
index e095ba2af5d..50f6c8b7d64 100644
--- a/spec/requests/api/projects_spec.rb
+++ b/spec/requests/api/projects_spec.rb
@@ -50,6 +50,12 @@ describe API::Projects do
         expect(json_response).to be_an Array
         expect(json_response.map { |p| p['id'] }).to contain_exactly(*projects.map(&:id))
       end
+
+      it 'returns the proper security headers' do
+        get api('/projects', current_user), filter
+
+        expect(response).to include_security_headers
+      end
     end
 
     shared_examples_for 'projects response without N + 1 queries' do
@@ -1856,4 +1862,9 @@ describe API::Projects do
       end
     end
   end
+
+  it_behaves_like 'custom attributes endpoints', 'projects' do
+    let(:attributable) { project }
+    let(:other_attributable) { project2 }
+  end
 end
diff --git a/spec/requests/api/services_spec.rb b/spec/requests/api/services_spec.rb
index dfe48e45d49..ba697e2b305 100644
--- a/spec/requests/api/services_spec.rb
+++ b/spec/requests/api/services_spec.rb
@@ -175,4 +175,25 @@ describe API::Services do
       end
     end
   end
+
+  describe 'Mattermost service' do
+    let(:service_name) { 'mattermost' }
+    let(:params) do
+      { webhook: 'https://hook.example.com', username: 'username' }
+    end
+
+    before do
+      project.create_mattermost_service(
+        active: true,
+        properties: params
+      )
+    end
+
+    it 'accepts a username for update' do
+      put api("/projects/#{project.id}/services/mattermost", user), params.merge(username: 'new_username')
+
+      expect(response).to have_gitlab_http_status(200)
+      expect(json_response['properties']['username']).to eq('new_username')
+    end
+  end
 end
diff --git a/spec/requests/api/users_spec.rb b/spec/requests/api/users_spec.rb
index 634c8dae0ba..2aeae6f9ec7 100644
--- a/spec/requests/api/users_spec.rb
+++ b/spec/requests/api/users_spec.rb
@@ -1880,7 +1880,8 @@ describe API::Users do
     end
   end
 
-  include_examples 'custom attributes endpoints', 'users' do
+  it_behaves_like 'custom attributes endpoints', 'users' do
     let(:attributable) { user }
+    let(:other_attributable) { admin }
   end
 end
diff --git a/spec/requests/api/v3/builds_spec.rb b/spec/requests/api/v3/builds_spec.rb
index 3f58b7ef384..a73bb456b52 100644
--- a/spec/requests/api/v3/builds_spec.rb
+++ b/spec/requests/api/v3/builds_spec.rb
@@ -408,6 +408,8 @@ describe API::V3::Builds do
 
   describe 'POST /projects/:id/builds/:build_id/erase' do
     before do
+      project.add_master(user)
+
       post v3_api("/projects/#{project.id}/builds/#{build.id}/erase", user)
     end
 
diff --git a/spec/requests/api/v3/merge_requests_spec.rb b/spec/requests/api/v3/merge_requests_spec.rb
index 26251b95680..91897e5ee01 100644
--- a/spec/requests/api/v3/merge_requests_spec.rb
+++ b/spec/requests/api/v3/merge_requests_spec.rb
@@ -319,8 +319,6 @@ describe API::MergeRequests do
 
       before do
         forked_project.add_reporter(user2)
-
-        allow_any_instance_of(MergeRequest).to receive(:write_ref)
       end
 
       it "returns merge_request" do
diff --git a/spec/requests/lfs_http_spec.rb b/spec/requests/lfs_http_spec.rb
index 52e93e157f1..c597623bc4d 100644
--- a/spec/requests/lfs_http_spec.rb
+++ b/spec/requests/lfs_http_spec.rb
@@ -654,6 +654,20 @@ describe 'Git LFS API and storage' do
         }
       end
 
+      shared_examples 'pushes new LFS objects' do
+        let(:sample_size) { 150.megabytes }
+        let(:sample_oid) { '91eff75a492a3ed0dfcb544d7f31326bc4014c8551849c192fd1e48d4dd2c897' }
+
+        it 'responds with upload hypermedia link' do
+          expect(response).to have_gitlab_http_status(200)
+          expect(json_response['objects']).to be_kind_of(Array)
+          expect(json_response['objects'].first['oid']).to eq(sample_oid)
+          expect(json_response['objects'].first['size']).to eq(sample_size)
+          expect(json_response['objects'].first['actions']['upload']['href']).to eq("#{Gitlab.config.gitlab.url}/#{project.full_path}.git/gitlab-lfs/objects/#{sample_oid}/#{sample_size}")
+          expect(json_response['objects'].first['actions']['upload']['header']).to eq('Authorization' => authorization)
+        end
+      end
+
       describe 'when request is authenticated' do
         describe 'when user has project push access' do
           let(:authorization) { authorize_user }
@@ -684,27 +698,7 @@ describe 'Git LFS API and storage' do
           end
 
           context 'when pushing a lfs object that does not exist' do
-            let(:body) do
-              {
-                'operation' => 'upload',
-                'objects' => [
-                  { 'oid' => '91eff75a492a3ed0dfcb544d7f31326bc4014c8551849c192fd1e48d4dd2c897',
-                    'size' => 1575078 }
-                ]
-              }
-            end
-
-            it 'responds with status 200' do
-              expect(response).to have_gitlab_http_status(200)
-            end
-
-            it 'responds with upload hypermedia link' do
-              expect(json_response['objects']).to be_kind_of(Array)
-              expect(json_response['objects'].first['oid']).to eq("91eff75a492a3ed0dfcb544d7f31326bc4014c8551849c192fd1e48d4dd2c897")
-              expect(json_response['objects'].first['size']).to eq(1575078)
-              expect(json_response['objects'].first['actions']['upload']['href']).to eq("#{Gitlab.config.gitlab.url}/#{project.full_path}.git/gitlab-lfs/objects/91eff75a492a3ed0dfcb544d7f31326bc4014c8551849c192fd1e48d4dd2c897/1575078")
-              expect(json_response['objects'].first['actions']['upload']['header']).to eq('Authorization' => authorization)
-            end
+            it_behaves_like 'pushes new LFS objects'
           end
 
           context 'when pushing one new and one existing lfs object' do
@@ -785,6 +779,17 @@ describe 'Git LFS API and storage' do
             end
           end
         end
+
+        context 'when deploy key has project push access' do
+          let(:key) { create(:deploy_key, can_push: true) }
+          let(:authorization) { authorize_deploy_key }
+
+          let(:update_user_permissions) do
+            project.deploy_keys << key
+          end
+
+          it_behaves_like 'pushes new LFS objects'
+        end
       end
 
       context 'when user is not authenticated' do
diff --git a/spec/requests/openid_connect_spec.rb b/spec/requests/openid_connect_spec.rb
index 0b1f8ce6f6d..1a5ad9b04e4 100644
--- a/spec/requests/openid_connect_spec.rb
+++ b/spec/requests/openid_connect_spec.rb
@@ -107,6 +107,15 @@ describe 'OpenID Connect requests' do
       end
     end
 
+    # These 2 calls shouldn't actually throw, they should be handled as an
+    # unauthorized request, so we should be able to check the response.
+    #
+    # This was not possible due to an issue with Warden:
+    # https://github.com/hassox/warden/pull/162
+    #
+    # When the patch gets merged and we update Warden, these specs will need to
+    # updated to check the response instead of a raised exception.
+    # https://gitlab.com/gitlab-org/gitlab-ce/issues/40218
     context 'when user is blocked' do
       it 'returns authentication error' do
         access_grant
@@ -114,7 +123,7 @@ describe 'OpenID Connect requests' do
 
         expect do
           request_access_token
-        end.to throw_symbol :warden
+        end.to raise_error UncaughtThrowError
       end
     end
 
@@ -125,7 +134,7 @@ describe 'OpenID Connect requests' do
 
         expect do
           request_access_token
-        end.to throw_symbol :warden
+        end.to raise_error UncaughtThrowError
       end
     end
   end
diff --git a/spec/routing/group_routing_spec.rb b/spec/routing/group_routing_spec.rb
new file mode 100644
index 00000000000..7a4c8304e62
--- /dev/null
+++ b/spec/routing/group_routing_spec.rb
@@ -0,0 +1,127 @@
+require 'spec_helper'
+
+describe "Groups", "routing" do
+  let(:group_path) { 'complex.group-namegit' }
+  let!(:group) { create(:group, path: group_path) }
+
+  it "to #show" do
+    expect(get("/groups/#{group_path}")).to route_to('groups#show', id: group_path)
+  end
+
+  it "also supports nested groups" do
+    nested_group = create(:group, parent: group)
+    expect(get("/#{group_path}/#{nested_group.path}")).to route_to('groups#show', id: "#{group_path}/#{nested_group.path}")
+  end
+
+  it "also display group#show on the short path" do
+    expect(get("/#{group_path}")).to route_to('groups#show', id: group_path)
+  end
+
+  it "to #activity" do
+    expect(get("/groups/#{group_path}/-/activity")).to route_to('groups#activity', id: group_path)
+  end
+
+  it "to #issues" do
+    expect(get("/groups/#{group_path}/-/issues")).to route_to('groups#issues', id: group_path)
+  end
+
+  it "to #members" do
+    expect(get("/groups/#{group_path}/-/group_members")).to route_to('groups/group_members#index', group_id: group_path)
+  end
+
+  it "to #labels" do
+    expect(get("/groups/#{group_path}/-/labels")).to route_to('groups/labels#index', group_id: group_path)
+  end
+
+  it "to #milestones" do
+    expect(get("/groups/#{group_path}/-/milestones")).to route_to('groups/milestones#index', group_id: group_path)
+  end
+
+  describe 'legacy redirection' do
+    describe 'labels' do
+      it_behaves_like 'redirecting a legacy path', "/groups/complex.group-namegit/labels", "/groups/complex.group-namegit/-/labels/" do
+        let(:resource) { create(:group, parent: group, path: 'labels') }
+      end
+    end
+
+    describe 'group_members' do
+      it_behaves_like 'redirecting a legacy path', "/groups/complex.group-namegit/group_members", "/groups/complex.group-namegit/-/group_members/" do
+        let(:resource) { create(:group, parent: group, path: 'group_members') }
+      end
+    end
+
+    describe 'avatar' do
+      it 'routes to the avatars controller' do
+        expect(delete("/groups/#{group_path}/-/avatar"))
+          .to route_to(group_id: group_path,
+                       controller: 'groups/avatars',
+                       action: 'destroy')
+      end
+    end
+
+    describe 'milestones' do
+      it_behaves_like 'redirecting a legacy path', "/groups/complex.group-namegit/milestones", "/groups/complex.group-namegit/-/milestones/" do
+        let(:resource) { create(:group, parent: group, path: 'milestones') }
+      end
+
+      context 'nested routes' do
+        include RSpec::Rails::RequestExampleGroup
+
+        let(:milestone) { create(:milestone, group: group) }
+
+        it 'redirects the nested routes' do
+          request = get("/groups/#{group_path}/milestones/#{milestone.id}/merge_requests")
+          expect(request).to redirect_to("/groups/#{group_path}/-/milestones/#{milestone.id}/merge_requests")
+        end
+      end
+
+      context 'with a query string' do
+        it_behaves_like 'redirecting a legacy path', "/groups/complex.group-namegit/milestones?hello=world", "/groups/complex.group-namegit/-/milestones/?hello=world" do
+          let(:resource) { create(:group, parent: group, path: 'milestones') }
+        end
+
+        it_behaves_like 'redirecting a legacy path', "/groups/complex.group-namegit/milestones?milestones=/milestones", "/groups/complex.group-namegit/-/milestones/?milestones=/milestones" do
+          let(:resource) { create(:group, parent: group, path: 'milestones') }
+        end
+      end
+    end
+
+    describe 'edit' do
+      it_behaves_like 'redirecting a legacy path', "/groups/complex.group-namegit/edit", "/groups/complex.group-namegit/-/edit/" do
+        let(:resource) do
+          pending('still rejected because of the wildcard reserved word')
+          create(:group, parent: group, path: 'edit')
+        end
+      end
+    end
+
+    describe 'issues' do
+      it_behaves_like 'redirecting a legacy path', "/groups/complex.group-namegit/issues", "/groups/complex.group-namegit/-/issues/" do
+        let(:resource) { create(:group, parent: group, path: 'issues') }
+      end
+    end
+
+    describe 'merge_requests' do
+      it_behaves_like 'redirecting a legacy path', "/groups/complex.group-namegit/merge_requests", "/groups/complex.group-namegit/-/merge_requests/" do
+        let(:resource) { create(:group, parent: group, path: 'merge_requests') }
+      end
+    end
+
+    describe 'projects' do
+      it_behaves_like 'redirecting a legacy path', "/groups/complex.group-namegit/projects", "/groups/complex.group-namegit/-/projects/" do
+        let(:resource) { create(:group, parent: group, path: 'projects') }
+      end
+    end
+
+    describe 'activity' do
+      it_behaves_like 'redirecting a legacy path', "/groups/complex.group-namegit/activity", "/groups/complex.group-namegit/-/activity/" do
+        let(:resource) { create(:group, parent: group, path: 'activity') }
+      end
+
+      it_behaves_like 'redirecting a legacy path', "/groups/activity/activity", "/groups/activity/-/activity/" do
+        let!(:parent) { create(:group, path: 'activity') }
+        let(:resource) { create(:group, parent: parent, path: 'activity') }
+      end
+    end
+  end
+end
diff --git a/spec/routing/routing_spec.rb b/spec/routing/routing_spec.rb
index 609481603af..91aefa84d0e 100644
--- a/spec/routing/routing_spec.rb
+++ b/spec/routing/routing_spec.rb
@@ -257,8 +257,10 @@ describe "Authentication", "routing" do
     expect(post("/users/sign_in")).to route_to('sessions#create')
   end
 
-  it "DELETE /users/sign_out" do
-    expect(delete("/users/sign_out")).to route_to('sessions#destroy')
+  # sign_out with GET instead of DELETE facilitates ad-hoc single-sign-out processes
+  # (https://gitlab.com/gitlab-org/gitlab-ce/issues/39708)
+  it "GET /users/sign_out" do
+    expect(get("/users/sign_out")).to route_to('sessions#destroy')
   end
 
   it "POST /users/password" do
@@ -278,36 +280,6 @@ describe "Authentication", "routing" do
   end
 end
 
-describe "Groups", "routing" do
-  let(:name) { 'complex.group-namegit' }
-  let!(:group) { create(:group, name: name) }
-
-  it "to #show" do
-    expect(get("/groups/#{name}")).to route_to('groups#show', id: name)
-  end
-
-  it "also supports nested groups" do
-    nested_group = create(:group, parent: group)
-    expect(get("/#{name}/#{nested_group.name}")).to route_to('groups#show', id: "#{name}/#{nested_group.name}")
-  end
-
-  it "also display group#show on the short path" do
-    expect(get("/#{name}")).to route_to('groups#show', id: name)
-  end
-
-  it "to #activity" do
-    expect(get("/groups/#{name}/activity")).to route_to('groups#activity', id: name)
-  end
-
-  it "to #issues" do
-    expect(get("/groups/#{name}/issues")).to route_to('groups#issues', id: name)
-  end
-
-  it "to #members" do
-    expect(get("/groups/#{name}/group_members")).to route_to('groups/group_members#index', group_id: name)
-  end
-end
-
 describe HealthCheckController, 'routing' do
   it 'to #index' do
     expect(get('/health_check')).to route_to('health_check#index')
diff --git a/spec/serializers/cluster_application_entity_spec.rb b/spec/serializers/cluster_application_entity_spec.rb
new file mode 100644
index 00000000000..87c7b2ad36e
--- /dev/null
+++ b/spec/serializers/cluster_application_entity_spec.rb
@@ -0,0 +1,30 @@
+require 'spec_helper'
+
+describe ClusterApplicationEntity do
+  describe '#as_json' do
+    let(:application) { build(:cluster_applications_helm) }
+    subject { described_class.new(application).as_json }
+
+    it 'has name' do
+      expect(subject[:name]).to eq(application.name)
+    end
+
+    it 'has status' do
+      expect(subject[:status]).to eq(:not_installable)
+    end
+
+    it 'has no status_reason' do
+      expect(subject[:status_reason]).to be_nil
+    end
+
+    context 'when application is errored' do
+      let(:application) { build(:cluster_applications_helm, :errored) }
+
+      it 'has corresponded data' do
+        expect(subject[:status]).to eq(:errored)
+        expect(subject[:status_reason]).not_to be_nil
+        expect(subject[:status_reason]).to eq(application.status_reason)
+      end
+    end
+  end
+end
diff --git a/spec/serializers/cluster_entity_spec.rb b/spec/serializers/cluster_entity_spec.rb
index 2c7f49974f1..d6a43fd0f00 100644
--- a/spec/serializers/cluster_entity_spec.rb
+++ b/spec/serializers/cluster_entity_spec.rb
@@ -1,22 +1,51 @@
 require 'spec_helper'
 
 describe ClusterEntity do
-  set(:cluster) { create(:gcp_cluster, :errored) }
-  let(:request) { double('request') }
+  describe '#as_json' do
+    subject { described_class.new(cluster).as_json }
 
-  let(:entity) do
-    described_class.new(cluster)
-  end
+    context 'when provider type is gcp' do
+      let(:cluster) { create(:cluster, provider_type: :gcp, provider_gcp: provider) }
 
-  describe '#as_json' do
-    subject { entity.as_json }
+      context 'when status is creating' do
+        let(:provider) { create(:cluster_provider_gcp, :creating) }
+
+        it 'has corresponded data' do
+          expect(subject[:status]).to eq(:creating)
+          expect(subject[:status_reason]).to be_nil
+        end
+      end
+
+      context 'when status is errored' do
+        let(:provider) { create(:cluster_provider_gcp, :errored) }
 
-    it 'contains status' do
-      expect(subject[:status]).to eq(:errored)
+        it 'has corresponded data' do
+          expect(subject[:status]).to eq(:errored)
+          expect(subject[:status_reason]).to eq(provider.status_reason)
+        end
+      end
     end
 
-    it 'contains status reason' do
-      expect(subject[:status_reason]).to eq('general error')
+    context 'when provider type is user' do
+      let(:cluster) { create(:cluster, provider_type: :user) }
+
+      it 'has corresponded data' do
+        expect(subject[:status]).to eq(:created)
+        expect(subject[:status_reason]).to be_nil
+      end
+    end
+
+    context 'when no application has been installed' do
+      let(:cluster) { create(:cluster) }
+      subject { described_class.new(cluster).as_json[:applications]}
+
+      it 'contains helm as not_installable' do
+        expect(subject).not_to be_empty
+
+        helm = subject[0]
+        expect(helm[:name]).to eq('helm')
+        expect(helm[:status]).to eq(:not_installable)
+      end
     end
   end
 end
diff --git a/spec/serializers/cluster_serializer_spec.rb b/spec/serializers/cluster_serializer_spec.rb
index 1ac6784d28f..5e9f7a45891 100644
--- a/spec/serializers/cluster_serializer_spec.rb
+++ b/spec/serializers/cluster_serializer_spec.rb
@@ -1,18 +1,23 @@
 require 'spec_helper'
 
 describe ClusterSerializer do
-  let(:serializer) do
-    described_class.new
-  end
-
   describe '#represent_status' do
-    subject { serializer.represent_status(resource) }
+    subject { described_class.new.represent_status(cluster) }
+
+    context 'when provider type is gcp' do
+      let(:cluster) { create(:cluster, provider_type: :gcp, provider_gcp: provider) }
+      let(:provider) { create(:cluster_provider_gcp, :errored) }
+
+      it 'serializes only status' do
+        expect(subject.keys).to contain_exactly(:status, :status_reason, :applications)
+      end
+    end
 
-    context 'when represents only status' do
-      let(:resource) { create(:gcp_cluster, :errored) }
+    context 'when provider type is user' do
+      let(:cluster) { create(:cluster, provider_type: :user) }
 
       it 'serializes only status' do
-        expect(subject.keys).to contain_exactly(:status, :status_reason)
+        expect(subject.keys).to contain_exactly(:status, :status_reason, :applications)
       end
     end
   end
diff --git a/spec/serializers/pipeline_details_entity_spec.rb b/spec/serializers/pipeline_details_entity_spec.rb
index f60d1843581..45e18086894 100644
--- a/spec/serializers/pipeline_details_entity_spec.rb
+++ b/spec/serializers/pipeline_details_entity_spec.rb
@@ -107,7 +107,7 @@ describe PipelineDetailsEntity do
       it 'contains stages' do
         expect(subject).to include(:details)
         expect(subject[:details]).to include(:stages)
-        expect(subject[:details][:stages].first).to include(name: 'external')
+        expect(subject[:details][:stages].first).to include(name: 'test')
       end
     end
 
diff --git a/spec/services/base_count_service_spec.rb b/spec/services/base_count_service_spec.rb
new file mode 100644
index 00000000000..5ec8ed0976d
--- /dev/null
+++ b/spec/services/base_count_service_spec.rb
@@ -0,0 +1,80 @@
+require 'spec_helper'
+
+describe BaseCountService, :use_clean_rails_memory_store_caching do
+  let(:service) { described_class.new }
+
+  describe '#relation_for_count' do
+    it 'raises NotImplementedError' do
+      expect { service.relation_for_count }.to raise_error(NotImplementedError)
+    end
+  end
+
+  describe '#count' do
+    it 'returns the number of values' do
+      expect(service)
+        .to receive(:cache_key)
+        .and_return('foo')
+
+      expect(service)
+        .to receive(:uncached_count)
+        .and_return(5)
+
+      expect(service.count).to eq(5)
+    end
+  end
+
+  describe '#uncached_count' do
+    it 'returns the uncached number of values' do
+      expect(service)
+        .to receive(:relation_for_count)
+        .and_return(double(:relation, count: 5))
+
+      expect(service.uncached_count).to eq(5)
+    end
+  end
+
+  describe '#refresh_cache' do
+    it 'refreshes the cache' do
+      allow(service)
+        .to receive(:cache_key)
+        .and_return('foo')
+
+      allow(service)
+        .to receive(:uncached_count)
+        .and_return(4)
+
+      service.refresh_cache
+
+      expect(Rails.cache.fetch(service.cache_key, raw: service.raw?)).to eq(4)
+    end
+  end
+
+  describe '#delete_cache' do
+    it 'deletes the cache' do
+      allow(service)
+        .to receive(:cache_key)
+        .and_return('foo')
+
+      allow(service)
+        .to receive(:uncached_count)
+        .and_return(4)
+
+      service.refresh_cache
+      service.delete_cache
+
+      expect(Rails.cache.fetch(service.cache_key, raw: service.raw?)).to be_nil
+    end
+  end
+
+  describe '#raw?' do
+    it 'returns false' do
+      expect(service.raw?).to eq(false)
+    end
+  end
+
+  describe '#cache_key' do
+    it 'raises NotImplementedError' do
+      expect { service.cache_key }.to raise_error(NotImplementedError)
+    end
+  end
+end
diff --git a/spec/services/ci/create_cluster_service_spec.rb b/spec/services/ci/create_cluster_service_spec.rb
deleted file mode 100644
index 6e7398fbffa..00000000000
--- a/spec/services/ci/create_cluster_service_spec.rb
+++ /dev/null
@@ -1,47 +0,0 @@
-require 'spec_helper'
-
-describe Ci::CreateClusterService do
-  describe '#execute' do
-    let(:access_token) { 'xxx' }
-    let(:project) { create(:project) }
-    let(:user) { create(:user) }
-    let(:result) { described_class.new(project, user, params).execute(access_token) }
-
-    context 'when correct params' do
-      let(:params) do
-        {
-          gcp_project_id: 'gcp-project',
-          gcp_cluster_name: 'test-cluster',
-          gcp_cluster_zone: 'us-central1-a',
-          gcp_cluster_size: 1
-        }
-      end
-
-      it 'creates a cluster object' do
-        expect(ClusterProvisionWorker).to receive(:perform_async)
-        expect { result }.to change { Gcp::Cluster.count }.by(1)
-        expect(result.gcp_project_id).to eq('gcp-project')
-        expect(result.gcp_cluster_name).to eq('test-cluster')
-        expect(result.gcp_cluster_zone).to eq('us-central1-a')
-        expect(result.gcp_cluster_size).to eq(1)
-        expect(result.gcp_token).to eq(access_token)
-      end
-    end
-
-    context 'when invalid params' do
-      let(:params) do
-        {
-          gcp_project_id: 'gcp-project',
-          gcp_cluster_name: 'test-cluster',
-          gcp_cluster_zone: 'us-central1-a',
-          gcp_cluster_size: 'ABC'
-        }
-      end
-
-      it 'returns an error' do
-        expect(ClusterProvisionWorker).not_to receive(:perform_async)
-        expect { result }.to change { Gcp::Cluster.count }.by(0)
-      end
-    end
-  end
-end
diff --git a/spec/services/ci/fetch_gcp_operation_service_spec.rb b/spec/services/ci/fetch_gcp_operation_service_spec.rb
deleted file mode 100644
index 7792979c5cb..00000000000
--- a/spec/services/ci/fetch_gcp_operation_service_spec.rb
+++ /dev/null
@@ -1,36 +0,0 @@
-require 'spec_helper'
-require 'google/apis'
-
-describe Ci::FetchGcpOperationService do
-  describe '#execute' do
-    let(:cluster) { create(:gcp_cluster) }
-    let(:operation) { double }
-
-    context 'when suceeded' do
-      before do
-        allow_any_instance_of(GoogleApi::CloudPlatform::Client)
-          .to receive(:projects_zones_operations).and_return(operation)
-      end
-
-      it 'fetch the gcp operaion' do
-        expect { |b| described_class.new.execute(cluster, &b) }
-          .to yield_with_args(operation)
-      end
-    end
-
-    context 'when raises an error' do
-      let(:error) { Google::Apis::ServerError.new('a') }
-
-      before do
-        allow_any_instance_of(GoogleApi::CloudPlatform::Client)
-          .to receive(:projects_zones_operations).and_raise(error)
-      end
-
-      it 'sets an error to cluster object' do
-        expect { |b| described_class.new.execute(cluster, &b) }
-          .not_to yield_with_args
-        expect(cluster.reload).to be_errored
-      end
-    end
-  end
-end
diff --git a/spec/services/ci/finalize_cluster_creation_service_spec.rb b/spec/services/ci/finalize_cluster_creation_service_spec.rb
deleted file mode 100644
index def3709fdb4..00000000000
--- a/spec/services/ci/finalize_cluster_creation_service_spec.rb
+++ /dev/null
@@ -1,61 +0,0 @@
-require 'spec_helper'
-
-describe Ci::FinalizeClusterCreationService do
-  describe '#execute' do
-    let(:cluster) { create(:gcp_cluster) }
-    let(:result) { described_class.new.execute(cluster) }
-
-    context 'when suceeded to get cluster from api' do
-      let(:gke_cluster) { double }
-
-      before do
-        allow(gke_cluster).to receive(:endpoint).and_return('111.111.111.111')
-        allow(gke_cluster).to receive(:master_auth).and_return(spy)
-        allow_any_instance_of(GoogleApi::CloudPlatform::Client)
-          .to receive(:projects_zones_clusters_get).and_return(gke_cluster)
-      end
-
-      context 'when suceeded to get kubernetes token' do
-        let(:kubernetes_token) { 'abc' }
-
-        before do
-          allow_any_instance_of(Ci::FetchKubernetesTokenService)
-            .to receive(:execute).and_return(kubernetes_token)
-        end
-
-        it 'executes integration cluster' do
-          expect_any_instance_of(Ci::IntegrateClusterService).to receive(:execute)
-          described_class.new.execute(cluster)
-        end
-      end
-
-      context 'when failed to get kubernetes token' do
-        before do
-          allow_any_instance_of(Ci::FetchKubernetesTokenService)
-            .to receive(:execute).and_return(nil)
-        end
-
-        it 'sets an error to cluster object' do
-          described_class.new.execute(cluster)
-
-          expect(cluster.reload).to be_errored
-        end
-      end
-    end
-
-    context 'when failed to get cluster from api' do
-      let(:error) { Google::Apis::ServerError.new('a') }
-
-      before do
-        allow_any_instance_of(GoogleApi::CloudPlatform::Client)
-          .to receive(:projects_zones_clusters_get).and_raise(error)
-      end
-
-      it 'sets an error to cluster object' do
-        described_class.new.execute(cluster)
-
-        expect(cluster.reload).to be_errored
-      end
-    end
-  end
-end
diff --git a/spec/services/ci/integrate_cluster_service_spec.rb b/spec/services/ci/integrate_cluster_service_spec.rb
deleted file mode 100644
index 3a79c205bd1..00000000000
--- a/spec/services/ci/integrate_cluster_service_spec.rb
+++ /dev/null
@@ -1,42 +0,0 @@
-require 'spec_helper'
-
-describe Ci::IntegrateClusterService do
-  describe '#execute' do
-    let(:cluster) { create(:gcp_cluster, :custom_project_namespace) }
-    let(:endpoint) { '123.123.123.123' }
-    let(:ca_cert) { 'ca_cert_xxx' }
-    let(:token) { 'token_xxx' }
-    let(:username) { 'username_xxx' }
-    let(:password) { 'password_xxx' }
-
-    before do
-      described_class
-        .new.execute(cluster, endpoint, ca_cert, token, username, password)
-
-      cluster.reload
-    end
-
-    context 'when correct params' do
-      it 'creates a cluster object' do
-        expect(cluster.endpoint).to eq(endpoint)
-        expect(cluster.ca_cert).to eq(ca_cert)
-        expect(cluster.kubernetes_token).to eq(token)
-        expect(cluster.username).to eq(username)
-        expect(cluster.password).to eq(password)
-        expect(cluster.service.active).to be_truthy
-        expect(cluster.service.api_url).to eq(cluster.api_url)
-        expect(cluster.service.ca_pem).to eq(ca_cert)
-        expect(cluster.service.namespace).to eq(cluster.project_namespace)
-        expect(cluster.service.token).to eq(token)
-      end
-    end
-
-    context 'when invalid params' do
-      let(:endpoint) { nil }
-
-      it 'sets an error to cluster object' do
-        expect(cluster).to be_errored
-      end
-    end
-  end
-end
diff --git a/spec/services/ci/process_pipeline_service_spec.rb b/spec/services/ci/process_pipeline_service_spec.rb
index 214adc9960f..0ce41e7c7ee 100644
--- a/spec/services/ci/process_pipeline_service_spec.rb
+++ b/spec/services/ci/process_pipeline_service_spec.rb
@@ -292,6 +292,30 @@ describe Ci::ProcessPipelineService, '#execute' do
     end
   end
 
+  context 'when there is only one manual action' do
+    before do
+      create_build('deploy', stage_idx: 0, when: 'manual', allow_failure: true)
+
+      process_pipeline
+    end
+
+    it 'skips the pipeline' do
+      expect(pipeline.reload).to be_skipped
+    end
+
+    context 'when the action was played' do
+      before do
+        play_manual_action('deploy')
+      end
+
+      it 'queues the action and pipeline' do
+        expect(all_builds_statuses).to eq(%w[pending])
+
+        expect(pipeline.reload).to be_pending
+      end
+    end
+  end
+
   context 'when blocking manual actions are defined' do
     before do
       create_build('code:test', stage_idx: 0)
diff --git a/spec/services/ci/provision_cluster_service_spec.rb b/spec/services/ci/provision_cluster_service_spec.rb
deleted file mode 100644
index 5ce5c788314..00000000000
--- a/spec/services/ci/provision_cluster_service_spec.rb
+++ /dev/null
@@ -1,85 +0,0 @@
-require 'spec_helper'
-
-describe Ci::ProvisionClusterService do
-  describe '#execute' do
-    let(:cluster) { create(:gcp_cluster) }
-    let(:operation) { spy }
-
-    shared_examples 'error' do
-      it 'sets an error to cluster object' do
-        described_class.new.execute(cluster)
-
-        expect(cluster.reload).to be_errored
-      end
-    end
-
-    context 'when suceeded to request provision' do
-      before do
-        allow_any_instance_of(GoogleApi::CloudPlatform::Client)
-          .to receive(:projects_zones_clusters_create).and_return(operation)
-      end
-
-      context 'when operation status is RUNNING' do
-        before do
-          allow(operation).to receive(:status).and_return('RUNNING')
-        end
-
-        context 'when suceeded to parse gcp operation id' do
-          before do
-            allow_any_instance_of(GoogleApi::CloudPlatform::Client)
-              .to receive(:parse_operation_id).and_return('operation-123')
-          end
-
-          context 'when cluster status is scheduled' do
-            before do
-              allow_any_instance_of(GoogleApi::CloudPlatform::Client)
-                .to receive(:parse_operation_id).and_return('operation-123')
-            end
-
-            it 'schedules a worker for status minitoring' do
-              expect(WaitForClusterCreationWorker).to receive(:perform_in)
-
-              described_class.new.execute(cluster)
-            end
-          end
-
-          context 'when cluster status is creating' do
-            before do
-              cluster.make_creating!
-            end
-
-            it_behaves_like 'error'
-          end
-        end
-
-        context 'when failed to parse gcp operation id' do
-          before do
-            allow_any_instance_of(GoogleApi::CloudPlatform::Client)
-              .to receive(:parse_operation_id).and_return(nil)
-          end
-
-          it_behaves_like 'error'
-        end
-      end
-
-      context 'when operation status is others' do
-        before do
-          allow(operation).to receive(:status).and_return('others')
-        end
-
-        it_behaves_like 'error'
-      end
-    end
-
-    context 'when failed to request provision' do
-      let(:error) { Google::Apis::ServerError.new('a') }
-
-      before do
-        allow_any_instance_of(GoogleApi::CloudPlatform::Client)
-          .to receive(:projects_zones_clusters_create).and_raise(error)
-      end
-
-      it_behaves_like 'error'
-    end
-  end
-end
diff --git a/spec/services/ci/update_cluster_service_spec.rb b/spec/services/ci/update_cluster_service_spec.rb
deleted file mode 100644
index a289385b88f..00000000000
--- a/spec/services/ci/update_cluster_service_spec.rb
+++ /dev/null
@@ -1,37 +0,0 @@
-require 'spec_helper'
-
-describe Ci::UpdateClusterService do
-  describe '#execute' do
-    let(:cluster) { create(:gcp_cluster, :created_on_gke, :with_kubernetes_service) }
-
-    before do
-      described_class.new(cluster.project, cluster.user, params).execute(cluster)
-
-      cluster.reload
-    end
-
-    context 'when correct params' do
-      context 'when enabled is true' do
-        let(:params) { { 'enabled' => 'true' } }
-
-        it 'enables cluster and overwrite kubernetes service' do
-          expect(cluster.enabled).to be_truthy
-          expect(cluster.service.active).to be_truthy
-          expect(cluster.service.api_url).to eq(cluster.api_url)
-          expect(cluster.service.ca_pem).to eq(cluster.ca_cert)
-          expect(cluster.service.namespace).to eq(cluster.project_namespace)
-          expect(cluster.service.token).to eq(cluster.kubernetes_token)
-        end
-      end
-
-      context 'when enabled is false' do
-        let(:params) { { 'enabled' => 'false' } }
-
-        it 'disables cluster and kubernetes service' do
-          expect(cluster.enabled).to be_falsy
-          expect(cluster.service.active).to be_falsy
-        end
-      end
-    end
-  end
-end
diff --git a/spec/services/clusters/applications/check_installation_progress_service_spec.rb b/spec/services/clusters/applications/check_installation_progress_service_spec.rb
new file mode 100644
index 00000000000..75fc05d36e9
--- /dev/null
+++ b/spec/services/clusters/applications/check_installation_progress_service_spec.rb
@@ -0,0 +1,91 @@
+require 'spec_helper'
+
+describe Clusters::Applications::CheckInstallationProgressService do
+  RESCHEDULE_PHASES = Gitlab::Kubernetes::Pod::PHASES - [Gitlab::Kubernetes::Pod::SUCCEEDED, Gitlab::Kubernetes::Pod::FAILED].freeze
+
+  let(:application) { create(:cluster_applications_helm, :installing) }
+  let(:service) { described_class.new(application) }
+  let(:phase) { Gitlab::Kubernetes::Pod::UNKNOWN }
+  let(:errors) { nil }
+
+  shared_examples 'a terminated installation' do
+    it 'removes the installation POD' do
+      expect(service).to receive(:remove_installation_pod).once
+
+      service.execute
+    end
+  end
+
+  shared_examples 'a not yet terminated installation' do |a_phase|
+    let(:phase) { a_phase }
+
+    context "when phase is #{a_phase}" do
+      context 'when not timeouted' do
+        it 'reschedule a new check' do
+          expect(ClusterWaitForAppInstallationWorker).to receive(:perform_in).once
+          expect(service).not_to receive(:remove_installation_pod)
+
+          service.execute
+
+          expect(application).to be_installing
+          expect(application.status_reason).to be_nil
+        end
+      end
+
+      context 'when timeouted' do
+        let(:application) { create(:cluster_applications_helm, :timeouted) }
+
+        it_behaves_like 'a terminated installation'
+
+        it 'make the application errored' do
+          expect(ClusterWaitForAppInstallationWorker).not_to receive(:perform_in)
+
+          service.execute
+
+          expect(application).to be_errored
+          expect(application.status_reason).to match(/\btimeouted\b/)
+        end
+      end
+    end
+  end
+
+  before do
+    expect(service).to receive(:installation_phase).once.and_return(phase)
+
+    allow(service).to receive(:installation_errors).and_return(errors)
+    allow(service).to receive(:remove_installation_pod).and_return(nil)
+  end
+
+  describe '#execute' do
+    context 'when installation POD succeeded' do
+      let(:phase) { Gitlab::Kubernetes::Pod::SUCCEEDED }
+
+      it_behaves_like 'a terminated installation'
+
+      it 'make the application installed' do
+        expect(ClusterWaitForAppInstallationWorker).not_to receive(:perform_in)
+
+        service.execute
+
+        expect(application).to be_installed
+        expect(application.status_reason).to be_nil
+      end
+    end
+
+    context 'when installation POD failed' do
+      let(:phase) { Gitlab::Kubernetes::Pod::FAILED }
+      let(:errors) { 'test installation failed' }
+
+      it_behaves_like 'a terminated installation'
+
+      it 'make the application errored' do
+        service.execute
+
+        expect(application).to be_errored
+        expect(application.status_reason).to eq(errors)
+      end
+    end
+
+    RESCHEDULE_PHASES.each { |phase| it_behaves_like 'a not yet terminated installation', phase }
+  end
+end
diff --git a/spec/services/clusters/applications/install_service_spec.rb b/spec/services/clusters/applications/install_service_spec.rb
new file mode 100644
index 00000000000..054a49ffedf
--- /dev/null
+++ b/spec/services/clusters/applications/install_service_spec.rb
@@ -0,0 +1,60 @@
+require 'spec_helper'
+
+describe Clusters::Applications::InstallService do
+  describe '#execute' do
+    let(:application) { create(:cluster_applications_helm, :scheduled) }
+    let(:service) { described_class.new(application) }
+    let(:helm_client) { instance_double(Gitlab::Kubernetes::Helm) }
+
+    before do
+      allow(service).to receive(:helm_api).and_return(helm_client)
+    end
+
+    context 'when there are no errors' do
+      before do
+        expect(helm_client).to receive(:install).with(application.install_command)
+        allow(ClusterWaitForAppInstallationWorker).to receive(:perform_in).and_return(nil)
+      end
+
+      it 'make the application installing' do
+        expect(application.cluster).not_to be_nil
+        service.execute
+
+        expect(application).to be_installing
+      end
+
+      it 'schedule async installation status check' do
+        expect(ClusterWaitForAppInstallationWorker).to receive(:perform_in).once
+
+        service.execute
+      end
+    end
+
+    context 'when k8s cluster communication fails' do
+      before do
+        error = KubeException.new(500, 'system failure', nil)
+        expect(helm_client).to receive(:install).with(application.install_command).and_raise(error)
+      end
+
+      it 'make the application errored' do
+        service.execute
+
+        expect(application).to be_errored
+        expect(application.status_reason).to match(/kubernetes error:/i)
+      end
+    end
+
+    context 'when application cannot be persisted' do
+      let(:application) { build(:cluster_applications_helm, :scheduled) }
+
+      it 'make the application errored' do
+        expect(application).to receive(:make_installing!).once.and_raise(ActiveRecord::RecordInvalid)
+        expect(helm_client).not_to receive(:install)
+
+        service.execute
+
+        expect(application).to be_errored
+      end
+    end
+  end
+end
diff --git a/spec/services/clusters/applications/schedule_installation_service_spec.rb b/spec/services/clusters/applications/schedule_installation_service_spec.rb
new file mode 100644
index 00000000000..cf95361c935
--- /dev/null
+++ b/spec/services/clusters/applications/schedule_installation_service_spec.rb
@@ -0,0 +1,55 @@
+require 'spec_helper'
+
+describe Clusters::Applications::ScheduleInstallationService do
+  def count_scheduled
+    application_class&.with_status(:scheduled)&.count || 0
+  end
+
+  shared_examples 'a failing service' do
+    it 'raise an exception' do
+      expect(ClusterInstallAppWorker).not_to receive(:perform_async)
+      count_before = count_scheduled
+
+      expect { service.execute }.to raise_error(StandardError)
+      expect(count_scheduled).to eq(count_before)
+    end
+  end
+
+  describe '#execute' do
+    let(:application_class) { Clusters::Applications::Helm }
+    let(:cluster) { create(:cluster, :project, :provided_by_gcp) }
+    let(:project) { cluster.project }
+    let(:service) { described_class.new(project, nil, cluster: cluster, application_class: application_class) }
+
+    it 'creates a new application' do
+      expect { service.execute }.to change { application_class.count }.by(1)
+    end
+
+    it 'make the application scheduled' do
+      expect(ClusterInstallAppWorker).to receive(:perform_async).with(application_class.application_name, kind_of(Numeric)).once
+
+      expect { service.execute }.to change { application_class.with_status(:scheduled).count }.by(1)
+    end
+
+    context 'when installation is already in progress' do
+      let(:application) { create(:cluster_applications_helm, :installing) }
+      let(:cluster) { application.cluster }
+
+      it_behaves_like 'a failing service'
+    end
+
+    context 'when application_class is nil' do
+      let(:application_class) { nil }
+
+      it_behaves_like 'a failing service'
+    end
+
+    context 'when application cannot be persisted' do
+      before do
+        expect_any_instance_of(application_class).to receive(:make_scheduled!).once.and_raise(ActiveRecord::RecordInvalid)
+      end
+
+      it_behaves_like 'a failing service'
+    end
+  end
+end
diff --git a/spec/services/clusters/create_service_spec.rb b/spec/services/clusters/create_service_spec.rb
new file mode 100644
index 00000000000..5b6edb73beb
--- /dev/null
+++ b/spec/services/clusters/create_service_spec.rb
@@ -0,0 +1,64 @@
+require 'spec_helper'
+
+describe Clusters::CreateService do
+  let(:access_token) { 'xxx' }
+  let(:project) { create(:project) }
+  let(:user) { create(:user) }
+  let(:result) { described_class.new(project, user, params).execute(access_token) }
+
+  context 'when provider is gcp' do
+    context 'when correct params' do
+      let(:params) do
+        {
+          name: 'test-cluster',
+          provider_type: :gcp,
+          provider_gcp_attributes: {
+            gcp_project_id: 'gcp-project',
+            zone: 'us-central1-a',
+            num_nodes: 1,
+            machine_type: 'machine_type-a'
+          }
+        }
+      end
+
+      it 'creates a cluster object and performs a worker' do
+        expect(ClusterProvisionWorker).to receive(:perform_async)
+
+        expect { result }
+          .to change { Clusters::Cluster.count }.by(1)
+          .and change { Clusters::Providers::Gcp.count }.by(1)
+
+        expect(result.name).to eq('test-cluster')
+        expect(result.user).to eq(user)
+        expect(result.project).to eq(project)
+        expect(result.provider.gcp_project_id).to eq('gcp-project')
+        expect(result.provider.zone).to eq('us-central1-a')
+        expect(result.provider.num_nodes).to eq(1)
+        expect(result.provider.machine_type).to eq('machine_type-a')
+        expect(result.provider.access_token).to eq(access_token)
+        expect(result.platform).to be_nil
+      end
+    end
+
+    context 'when invalid params' do
+      let(:params) do
+        {
+          name: 'test-cluster',
+          provider_type: :gcp,
+          provider_gcp_attributes: {
+            gcp_project_id: '!!!!!!!',
+            zone: 'us-central1-a',
+            num_nodes: 1,
+            machine_type: 'machine_type-a'
+          }
+        }
+      end
+
+      it 'returns an error' do
+        expect(ClusterProvisionWorker).not_to receive(:perform_async)
+        expect { result }.to change { Clusters::Cluster.count }.by(0)
+        expect(result.errors[:"provider_gcp.gcp_project_id"]).to be_present
+      end
+    end
+  end
+end
diff --git a/spec/services/clusters/gcp/fetch_operation_service_spec.rb b/spec/services/clusters/gcp/fetch_operation_service_spec.rb
new file mode 100644
index 00000000000..e2fa93904c5
--- /dev/null
+++ b/spec/services/clusters/gcp/fetch_operation_service_spec.rb
@@ -0,0 +1,43 @@
+require 'spec_helper'
+
+describe Clusters::Gcp::FetchOperationService do
+  include GoogleApi::CloudPlatformHelpers
+
+  describe '#execute' do
+    let(:provider) { create(:cluster_provider_gcp, :creating) }
+    let(:gcp_project_id) { provider.gcp_project_id }
+    let(:zone) { provider.zone }
+    let(:operation_id) { provider.operation_id }
+
+    shared_examples 'success' do
+      it 'yields' do
+        expect { |b| described_class.new.execute(provider, &b) }
+          .to yield_with_args
+      end
+    end
+
+    shared_examples 'error' do
+      it 'sets an error to provider object' do
+        expect { |b| described_class.new.execute(provider, &b) }
+          .not_to yield_with_args
+        expect(provider.reload).to be_errored
+      end
+    end
+
+    context 'when suceeded to fetch operation' do
+      before do
+        stub_cloud_platform_get_zone_operation(gcp_project_id, zone, operation_id)
+      end
+
+      it_behaves_like 'success'
+    end
+
+    context 'when Internal Server Error happened' do
+      before do
+        stub_cloud_platform_get_zone_operation_error(gcp_project_id, zone, operation_id)
+      end
+
+      it_behaves_like 'error'
+    end
+  end
+end
diff --git a/spec/services/clusters/gcp/finalize_creation_service_spec.rb b/spec/services/clusters/gcp/finalize_creation_service_spec.rb
new file mode 100644
index 00000000000..0cf91307589
--- /dev/null
+++ b/spec/services/clusters/gcp/finalize_creation_service_spec.rb
@@ -0,0 +1,111 @@
+require 'spec_helper'
+
+describe Clusters::Gcp::FinalizeCreationService do
+  include GoogleApi::CloudPlatformHelpers
+  include KubernetesHelpers
+
+  describe '#execute' do
+    let(:cluster) { create(:cluster, :project, :providing_by_gcp) }
+    let(:provider) { cluster.provider }
+    let(:platform) { cluster.platform }
+    let(:gcp_project_id) { provider.gcp_project_id }
+    let(:zone) { provider.zone }
+    let(:cluster_name) { cluster.name }
+
+    shared_examples 'success' do
+      it 'configures provider and kubernetes' do
+        described_class.new.execute(provider)
+
+        expect(provider).to be_created
+      end
+    end
+
+    shared_examples 'error' do
+      it 'sets an error to provider object' do
+        described_class.new.execute(provider)
+
+        expect(provider.reload).to be_errored
+      end
+    end
+
+    context 'when suceeded to fetch gke cluster info' do
+      let(:endpoint) { '111.111.111.111' }
+      let(:api_url) { 'https://' + endpoint }
+      let(:username) { 'sample-username' }
+      let(:password) { 'sample-password' }
+
+      before do
+        stub_cloud_platform_get_zone_cluster(
+          gcp_project_id, zone, cluster_name,
+          {
+            endpoint: endpoint,
+            username: username,
+            password: password
+          }
+        )
+
+        stub_kubeclient_discover(api_url)
+      end
+
+      context 'when suceeded to fetch kuberenetes token' do
+        let(:token) { 'sample-token' }
+
+        before do
+          stub_kubeclient_get_secrets(
+            api_url,
+            {
+              token: Base64.encode64(token)
+            } )
+        end
+
+        it_behaves_like 'success'
+
+        it 'has corresponded data' do
+          described_class.new.execute(provider)
+          cluster.reload
+          provider.reload
+          platform.reload
+
+          expect(provider.endpoint).to eq(endpoint)
+          expect(platform.api_url).to eq(api_url)
+          expect(platform.ca_cert).to eq(Base64.decode64(load_sample_cert))
+          expect(platform.username).to eq(username)
+          expect(platform.password).to eq(password)
+          expect(platform.token).to eq(token)
+        end
+      end
+
+      context 'when default-token is not found' do
+        before do
+          stub_kubeclient_get_secrets(api_url, metadata_name: 'aaaa')
+        end
+
+        it_behaves_like 'error'
+      end
+
+      context 'when token is empty' do
+        before do
+          stub_kubeclient_get_secrets(api_url, token: '')
+        end
+
+        it_behaves_like 'error'
+      end
+
+      context 'when failed to fetch kuberenetes token' do
+        before do
+          stub_kubeclient_get_secrets_error(api_url)
+        end
+
+        it_behaves_like 'error'
+      end
+    end
+
+    context 'when failed to fetch gke cluster info' do
+      before do
+        stub_cloud_platform_get_zone_cluster_error(gcp_project_id, zone, cluster_name)
+      end
+
+      it_behaves_like 'error'
+    end
+  end
+end
diff --git a/spec/services/clusters/gcp/provision_service_spec.rb b/spec/services/clusters/gcp/provision_service_spec.rb
new file mode 100644
index 00000000000..f48afdc83b2
--- /dev/null
+++ b/spec/services/clusters/gcp/provision_service_spec.rb
@@ -0,0 +1,69 @@
+require 'spec_helper'
+
+describe Clusters::Gcp::ProvisionService do
+  include GoogleApi::CloudPlatformHelpers
+
+  describe '#execute' do
+    let(:provider) { create(:cluster_provider_gcp, :scheduled) }
+    let(:gcp_project_id) { provider.gcp_project_id }
+    let(:zone) { provider.zone }
+
+    shared_examples 'success' do
+      it 'schedules a worker for status minitoring' do
+        expect(WaitForClusterCreationWorker).to receive(:perform_in)
+
+        described_class.new.execute(provider)
+
+        expect(provider.reload).to be_creating
+      end
+    end
+
+    shared_examples 'error' do
+      it 'sets an error to provider object' do
+        described_class.new.execute(provider)
+
+        expect(provider.reload).to be_errored
+      end
+    end
+
+    context 'when suceeded to request provision' do
+      before do
+        stub_cloud_platform_create_cluster(gcp_project_id, zone)
+      end
+
+      it_behaves_like 'success'
+    end
+
+    context 'when operation status is unexpected' do
+      before do
+        stub_cloud_platform_create_cluster(
+          gcp_project_id, zone,
+          {
+            "status": 'unexpected'
+          } )
+      end
+
+      it_behaves_like 'error'
+    end
+
+    context 'when selfLink is unexpected' do
+      before do
+        stub_cloud_platform_create_cluster(
+          gcp_project_id, zone,
+          {
+            "selfLink": 'unexpected'
+          })
+      end
+
+      it_behaves_like 'error'
+    end
+
+    context 'when Internal Server Error happened' do
+      before do
+        stub_cloud_platform_create_cluster_error(gcp_project_id, zone)
+      end
+
+      it_behaves_like 'error'
+    end
+  end
+end
diff --git a/spec/services/clusters/gcp/verify_provision_status_service_spec.rb b/spec/services/clusters/gcp/verify_provision_status_service_spec.rb
new file mode 100644
index 00000000000..2ee2fa51f63
--- /dev/null
+++ b/spec/services/clusters/gcp/verify_provision_status_service_spec.rb
@@ -0,0 +1,107 @@
+require 'spec_helper'
+
+describe Clusters::Gcp::VerifyProvisionStatusService do
+  include GoogleApi::CloudPlatformHelpers
+
+  describe '#execute' do
+    let(:provider) { create(:cluster_provider_gcp, :creating) }
+    let(:gcp_project_id) { provider.gcp_project_id }
+    let(:zone) { provider.zone }
+    let(:operation_id) { provider.operation_id }
+
+    shared_examples 'continue_creation' do
+      it 'schedules a worker for status minitoring' do
+        expect(WaitForClusterCreationWorker).to receive(:perform_in)
+
+        described_class.new.execute(provider)
+      end
+    end
+
+    shared_examples 'finalize_creation' do
+      it 'schedules a worker for status minitoring' do
+        expect_any_instance_of(Clusters::Gcp::FinalizeCreationService).to receive(:execute)
+
+        described_class.new.execute(provider)
+      end
+    end
+
+    shared_examples 'error' do
+      it 'sets an error to provider object' do
+        described_class.new.execute(provider)
+
+        expect(provider.reload).to be_errored
+      end
+    end
+
+    context 'when operation status is RUNNING' do
+      before do
+        stub_cloud_platform_get_zone_operation(
+          gcp_project_id, zone, operation_id,
+          {
+            "status": 'RUNNING',
+            "startTime": 1.minute.ago.strftime("%FT%TZ")
+          } )
+      end
+
+      it_behaves_like 'continue_creation'
+
+      context 'when cluster creation time exceeds timeout' do
+        before do
+          stub_cloud_platform_get_zone_operation(
+            gcp_project_id, zone, operation_id,
+            {
+              "status": 'RUNNING',
+              "startTime": 30.minutes.ago.strftime("%FT%TZ")
+            } )
+        end
+
+        it_behaves_like 'error'
+      end
+    end
+
+    context 'when operation status is PENDING' do
+      before do
+        stub_cloud_platform_get_zone_operation(
+          gcp_project_id, zone, operation_id,
+          {
+            "status": 'PENDING',
+            "startTime": 1.minute.ago.strftime("%FT%TZ")
+          } )
+      end
+
+      it_behaves_like 'continue_creation'
+    end
+
+    context 'when operation status is DONE' do
+      before do
+        stub_cloud_platform_get_zone_operation(
+          gcp_project_id, zone, operation_id,
+          {
+            "status": 'DONE'
+          } )
+      end
+
+      it_behaves_like 'finalize_creation'
+    end
+
+    context 'when operation status is unexpected' do
+      before do
+        stub_cloud_platform_get_zone_operation(
+          gcp_project_id, zone, operation_id,
+          {
+            "status": 'unexpected'
+          } )
+      end
+
+      it_behaves_like 'error'
+    end
+
+    context 'when failed to get operation status' do
+      before do
+        stub_cloud_platform_get_zone_operation_error(gcp_project_id, zone, operation_id)
+      end
+
+      it_behaves_like 'error'
+    end
+  end
+end
diff --git a/spec/services/clusters/update_service_spec.rb b/spec/services/clusters/update_service_spec.rb
new file mode 100644
index 00000000000..2d91a21035d
--- /dev/null
+++ b/spec/services/clusters/update_service_spec.rb
@@ -0,0 +1,59 @@
+require 'spec_helper'
+
+describe Clusters::UpdateService do
+  describe '#execute' do
+    subject { described_class.new(cluster.project, cluster.user, params).execute(cluster) }
+
+    let(:cluster) { create(:cluster, :project, :provided_by_user) }
+
+    context 'when correct params' do
+      context 'when enabled is true' do
+        let(:params) { { enabled: true } }
+
+        it 'enables cluster' do
+          is_expected.to eq(true)
+          expect(cluster.enabled).to be_truthy
+        end
+      end
+
+      context 'when enabled is false' do
+        let(:params) { { enabled: false } }
+
+        it 'disables cluster' do
+          is_expected.to eq(true)
+          expect(cluster.enabled).to be_falsy
+        end
+      end
+
+      context 'when namespace is specified' do
+        let(:params) do
+          {
+            platform_kubernetes_attributes: {
+              namespace: 'custom-namespace'
+            }
+          }
+        end
+
+        it 'updates namespace' do
+          is_expected.to eq(true)
+          expect(cluster.platform.namespace).to eq('custom-namespace')
+        end
+      end
+    end
+
+    context 'when invalid params' do
+      let(:params) do
+        {
+          platform_kubernetes_attributes: {
+            namespace: '!!!'
+          }
+        }
+      end
+
+      it 'returns false' do
+        is_expected.to eq(false)
+        expect(cluster.errors[:"platform_kubernetes.namespace"]).to be_present
+      end
+    end
+  end
+end
diff --git a/spec/services/delete_merged_branches_service_spec.rb b/spec/services/delete_merged_branches_service_spec.rb
index 5a9eb359ee1..0de02576203 100644
--- a/spec/services/delete_merged_branches_service_spec.rb
+++ b/spec/services/delete_merged_branches_service_spec.rb
@@ -42,6 +42,14 @@ describe DeleteMergedBranchesService do
       expect(project.repository.branch_names).to include('improve/awesome')
     end
 
+    it 'ignores protected tags' do
+      create(:protected_tag, project: project, name: 'improve/*')
+
+      service.execute
+
+      expect(project.repository.branch_names).not_to include('improve/awesome')
+    end
+
     context 'user without rights' do
       let(:user) { create(:user) }
 
diff --git a/spec/services/events/render_service_spec.rb b/spec/services/events/render_service_spec.rb
new file mode 100644
index 00000000000..b4a4a44d07b
--- /dev/null
+++ b/spec/services/events/render_service_spec.rb
@@ -0,0 +1,37 @@
+require 'spec_helper'
+
+describe Events::RenderService do
+  describe '#execute' do
+    let!(:note) { build(:note) }
+    let!(:event) { build(:event, target: note, project: note.project) }
+    let!(:user) { build(:user) }
+
+    context 'when the request format is atom' do
+      it 'renders the note inside events' do
+        expect(Banzai::ObjectRenderer).to receive(:new)
+          .with(event.project, user,
+                only_path: false,
+                xhtml: true)
+          .and_call_original
+
+        expect_any_instance_of(Banzai::ObjectRenderer)
+          .to receive(:render).with([note], :note)
+
+        described_class.new(user).execute([event], atom_request: true)
+      end
+    end
+
+    context 'when the request format is not atom' do
+      it 'renders the note inside events' do
+        expect(Banzai::ObjectRenderer).to receive(:new)
+          .with(event.project, user, {})
+          .and_call_original
+
+        expect_any_instance_of(Banzai::ObjectRenderer)
+          .to receive(:render).with([note], :note)
+
+        described_class.new(user).execute([event], atom_request: false)
+      end
+    end
+  end
+end
diff --git a/spec/services/merge_requests/merge_service_spec.rb b/spec/services/merge_requests/merge_service_spec.rb
index ac196e92601..f86f1ac2443 100644
--- a/spec/services/merge_requests/merge_service_spec.rb
+++ b/spec/services/merge_requests/merge_service_spec.rb
@@ -248,6 +248,28 @@ describe MergeRequests::MergeService do
         expect(merge_request.merge_error).to include(error_message)
         expect(Rails.logger).to have_received(:error).with(a_string_matching(error_message))
       end
+
+      context "when fast-forward merge is not allowed" do
+        before do
+          allow_any_instance_of(Repository).to receive(:ancestor?).and_return(nil)
+        end
+
+        %w(semi-linear ff).each do |merge_method|
+          it "logs and saves error if merge is #{merge_method} only" do
+            merge_method = 'rebase_merge' if merge_method == 'semi-linear'
+            merge_request.project.update(merge_method: merge_method)
+            error_message = 'Only fast-forward merge is allowed for your project. Please update your source branch'
+            allow(service).to receive(:execute_hooks)
+
+            service.execute(merge_request)
+
+            expect(merge_request).to be_open
+            expect(merge_request.merge_commit_sha).to be_nil
+            expect(merge_request.merge_error).to include(error_message)
+            expect(Rails.logger).to have_received(:error).with(a_string_matching(error_message))
+          end
+        end
+      end
     end
   end
 end
diff --git a/spec/services/merge_requests/update_service_spec.rb b/spec/services/merge_requests/update_service_spec.rb
index 98409be4236..5ce6ca70c83 100644
--- a/spec/services/merge_requests/update_service_spec.rb
+++ b/spec/services/merge_requests/update_service_spec.rb
@@ -80,7 +80,7 @@ describe MergeRequests::UpdateService, :mailer do
       it 'executes hooks with update action' do
         expect(service)
           .to have_received(:execute_hooks)
-                .with(@merge_request, 'update', old_labels: [], old_assignees: [user3])
+                .with(@merge_request, 'update', old_labels: [], old_assignees: [user3], old_total_time_spent: 0)
       end
 
       it 'sends email to user2 about assign of new merge request and email to user3 about merge request unassignment' do
diff --git a/spec/services/milestones/destroy_service_spec.rb b/spec/services/milestones/destroy_service_spec.rb
index 5739386dd0d..16e288b3148 100644
--- a/spec/services/milestones/destroy_service_spec.rb
+++ b/spec/services/milestones/destroy_service_spec.rb
@@ -4,7 +4,7 @@ describe Milestones::DestroyService do
   let(:user) { create(:user) }
   let(:project) { create(:project) }
   let(:milestone) { create(:milestone, title: 'Milestone v1.0', project: project) }
-  let(:issue) { create(:issue, project: project, milestone: milestone) }
+  let!(:issue) { create(:issue, project: project, milestone: milestone) }
   let(:merge_request) { create(:merge_request, source_project: project, milestone: milestone) }
 
   before do
diff --git a/spec/services/notes/render_service_spec.rb b/spec/services/notes/render_service_spec.rb
new file mode 100644
index 00000000000..faac498037f
--- /dev/null
+++ b/spec/services/notes/render_service_spec.rb
@@ -0,0 +1,31 @@
+require 'spec_helper'
+
+describe Notes::RenderService do
+  describe '#execute' do
+    it 'renders a Note' do
+      note = double(:note)
+      project = double(:project)
+      wiki = double(:wiki)
+      user = double(:user)
+
+      expect(Banzai::ObjectRenderer).to receive(:new)
+        .with(project, user,
+             requested_path: 'foo',
+             project_wiki: wiki,
+             ref: 'bar',
+             only_path: nil,
+             xhtml: false)
+        .and_call_original
+
+      expect_any_instance_of(Banzai::ObjectRenderer)
+        .to receive(:render).with([note], :note)
+
+      described_class.new(user).execute([note], project,
+                                        requested_path: 'foo',
+                                        project_wiki: wiki,
+                                        ref: 'bar',
+                                        only_path: nil,
+                                        xhtml: false)
+    end
+  end
+end
diff --git a/spec/services/projects/import_service_spec.rb b/spec/services/projects/import_service_spec.rb
index 034065aab00..bf7facaec99 100644
--- a/spec/services/projects/import_service_spec.rb
+++ b/spec/services/projects/import_service_spec.rb
@@ -6,6 +6,41 @@ describe Projects::ImportService do
 
   subject { described_class.new(project, user) }
 
+  describe '#async?' do
+    it 'returns true for an asynchronous importer' do
+      importer_class = double(:importer, async?: true)
+
+      allow(subject).to receive(:has_importer?).and_return(true)
+      allow(subject).to receive(:importer_class).and_return(importer_class)
+
+      expect(subject).to be_async
+    end
+
+    it 'returns false for a regular importer' do
+      importer_class = double(:importer, async?: false)
+
+      allow(subject).to receive(:has_importer?).and_return(true)
+      allow(subject).to receive(:importer_class).and_return(importer_class)
+
+      expect(subject).not_to be_async
+    end
+
+    it 'returns false when the importer does not define #async?' do
+      importer_class = double(:importer)
+
+      allow(subject).to receive(:has_importer?).and_return(true)
+      allow(subject).to receive(:importer_class).and_return(importer_class)
+
+      expect(subject).not_to be_async
+    end
+
+    it 'returns false when the importer does not exist' do
+      allow(subject).to receive(:has_importer?).and_return(false)
+
+      expect(subject).not_to be_async
+    end
+  end
+
   describe '#execute' do
     context 'with unknown url' do
       before do
@@ -37,21 +72,24 @@ describe Projects::ImportService do
       end
 
       context 'with a Github repository' do
-        it 'succeeds if repository import is successfully' do
-          expect_any_instance_of(Github::Import).to receive(:execute).and_return(true)
+        it 'succeeds if repository import was scheduled' do
+          expect_any_instance_of(Gitlab::GithubImport::ParallelImporter)
+            .to receive(:execute)
+            .and_return(true)
 
           result = subject.execute
 
           expect(result[:status]).to eq :success
         end
 
-        it 'fails if repository import fails' do
-          expect_any_instance_of(Repository).to receive(:fetch_remote).and_raise(Gitlab::Shell::Error.new('Failed to import the repository'))
+        it 'fails if repository import was not scheduled' do
+          expect_any_instance_of(Gitlab::GithubImport::ParallelImporter)
+            .to receive(:execute)
+            .and_return(false)
 
           result = subject.execute
 
           expect(result[:status]).to eq :error
-          expect(result[:message]).to eq "Error importing repository #{project.import_url} into #{project.path_with_namespace} - The remote data could not be imported."
         end
       end
 
@@ -92,47 +130,22 @@ describe Projects::ImportService do
       end
 
       it 'succeeds if importer succeeds' do
-        allow_any_instance_of(Github::Import).to receive(:execute).and_return(true)
+        allow_any_instance_of(Gitlab::GithubImport::ParallelImporter)
+          .to receive(:execute).and_return(true)
 
         result = subject.execute
 
         expect(result[:status]).to eq :success
       end
 
-      it 'flushes various caches' do
-        allow_any_instance_of(Github::Import).to receive(:execute)
-          .and_return(true)
-
-        expect_any_instance_of(Repository).to receive(:expire_content_cache)
-
-        subject.execute
-      end
-
       it 'fails if importer fails' do
-        allow_any_instance_of(Github::Import).to receive(:execute).and_return(false)
-
-        result = subject.execute
-
-        expect(result[:status]).to eq :error
-        expect(result[:message]).to eq "Error importing repository #{project.import_url} into #{project.full_path} - The remote data could not be imported."
-      end
-
-      it 'fails if importer raise an error' do
-        allow_any_instance_of(Github::Import).to receive(:execute).and_raise(Projects::ImportService::Error.new('Github: failed to connect API'))
+        allow_any_instance_of(Gitlab::GithubImport::ParallelImporter)
+          .to receive(:execute)
+          .and_return(false)
 
         result = subject.execute
 
         expect(result[:status]).to eq :error
-        expect(result[:message]).to eq "Error importing repository #{project.import_url} into #{project.full_path} - Github: failed to connect API"
-      end
-
-      it 'expires content cache after error' do
-        allow_any_instance_of(Project).to receive(:repository_exists?).and_return(false)
-
-        expect_any_instance_of(Repository).to receive(:fetch_remote).and_raise(Gitlab::Shell::Error.new)
-        expect_any_instance_of(Repository).to receive(:expire_content_cache)
-
-        subject.execute
       end
     end
 
diff --git a/spec/services/users/keys_count_service_spec.rb b/spec/services/users/keys_count_service_spec.rb
new file mode 100644
index 00000000000..a188cf86772
--- /dev/null
+++ b/spec/services/users/keys_count_service_spec.rb
@@ -0,0 +1,66 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Users::KeysCountService, :use_clean_rails_memory_store_caching do
+  let(:user) { create(:user) }
+  let(:service) { described_class.new(user) }
+
+  describe '#count' do
+    before do
+      create(:personal_key, user: user)
+    end
+
+    it 'returns the number of SSH keys as an Integer' do
+      expect(service.count).to eq(1)
+    end
+
+    it 'caches the number of keys in Redis' do
+      service.delete_cache
+
+      recorder = ActiveRecord::QueryRecorder.new do
+        2.times { service.count }
+      end
+
+      expect(recorder.count).to eq(1)
+    end
+  end
+
+  describe '#refresh_cache' do
+    it 'refreshes the Redis cache' do
+      Rails.cache.write(service.cache_key, 10)
+      service.refresh_cache
+
+      expect(Rails.cache.fetch(service.cache_key, raw: true)).to be_zero
+    end
+  end
+
+  describe '#delete_cache' do
+    it 'removes the cache' do
+      service.count
+      service.delete_cache
+
+      expect(Rails.cache.fetch(service.cache_key, raw: true)).to be_nil
+    end
+  end
+
+  describe '#uncached_count' do
+    it 'returns the number of SSH keys' do
+      expect(service.uncached_count).to be_zero
+    end
+
+    it 'does not cache the number of keys' do
+      recorder = ActiveRecord::QueryRecorder.new do
+        2.times { service.uncached_count }
+      end
+
+      expect(recorder.count).to be > 0
+    end
+  end
+
+  describe '#cache_key' do
+    it 'returns the cache key' do
+      expect(service.cache_key).to eq("users/key-count-service/#{user.id}")
+    end
+  end
+end
diff --git a/spec/support/controllers/githubish_import_controller_shared_examples.rb b/spec/support/controllers/githubish_import_controller_shared_examples.rb
index b23d81a226a..a0839eefe6c 100644
--- a/spec/support/controllers/githubish_import_controller_shared_examples.rb
+++ b/spec/support/controllers/githubish_import_controller_shared_examples.rb
@@ -14,7 +14,7 @@ shared_examples 'a GitHub-ish import controller: POST personal_access_token' do
   it "updates access token" do
     token = 'asdfasdf9876'
 
-    allow_any_instance_of(Gitlab::GithubImport::Client)
+    allow_any_instance_of(Gitlab::LegacyGithubImport::Client)
       .to receive(:user).and_return(true)
 
     post :personal_access_token, personal_access_token: token
@@ -79,7 +79,7 @@ shared_examples 'a GitHub-ish import controller: GET status' do
   end
 
   it "handles an invalid access token" do
-    allow_any_instance_of(Gitlab::GithubImport::Client)
+    allow_any_instance_of(Gitlab::LegacyGithubImport::Client)
       .to receive(:repos).and_raise(Octokit::Unauthorized)
 
     get :status
@@ -110,7 +110,7 @@ shared_examples 'a GitHub-ish import controller: POST create' do
   context "when the repository owner is the provider user" do
     context "when the provider user and GitLab user's usernames match" do
       it "takes the current user's namespace" do
-        expect(Gitlab::GithubImport::ProjectCreator)
+        expect(Gitlab::LegacyGithubImport::ProjectCreator)
           .to receive(:new).with(provider_repo, provider_repo.name, user.namespace, user, access_params, type: provider)
             .and_return(double(execute: true))
 
@@ -122,7 +122,7 @@ shared_examples 'a GitHub-ish import controller: POST create' do
       let(:provider_username) { "someone_else" }
 
       it "takes the current user's namespace" do
-        expect(Gitlab::GithubImport::ProjectCreator)
+        expect(Gitlab::LegacyGithubImport::ProjectCreator)
           .to receive(:new).with(provider_repo, provider_repo.name, user.namespace, user, access_params, type: provider)
             .and_return(double(execute: true))
 
@@ -149,7 +149,7 @@ shared_examples 'a GitHub-ish import controller: POST create' do
         end
 
         it "takes the existing namespace" do
-          expect(Gitlab::GithubImport::ProjectCreator)
+          expect(Gitlab::LegacyGithubImport::ProjectCreator)
             .to receive(:new).with(provider_repo, provider_repo.name, existing_namespace, user, access_params, type: provider)
               .and_return(double(execute: true))
 
@@ -161,7 +161,7 @@ shared_examples 'a GitHub-ish import controller: POST create' do
         it "creates a project using user's namespace" do
           create(:user, username: other_username)
 
-          expect(Gitlab::GithubImport::ProjectCreator)
+          expect(Gitlab::LegacyGithubImport::ProjectCreator)
             .to receive(:new).with(provider_repo, provider_repo.name, user.namespace, user, access_params, type: provider)
               .and_return(double(execute: true))
 
@@ -173,14 +173,14 @@ shared_examples 'a GitHub-ish import controller: POST create' do
     context "when a namespace with the provider user's username doesn't exist" do
       context "when current user can create namespaces" do
         it "creates the namespace" do
-          expect(Gitlab::GithubImport::ProjectCreator)
+          expect(Gitlab::LegacyGithubImport::ProjectCreator)
             .to receive(:new).and_return(double(execute: true))
 
           expect { post :create, target_namespace: provider_repo.name, format: :js }.to change(Namespace, :count).by(1)
         end
 
         it "takes the new namespace" do
-          expect(Gitlab::GithubImport::ProjectCreator)
+          expect(Gitlab::LegacyGithubImport::ProjectCreator)
             .to receive(:new).with(provider_repo, provider_repo.name, an_instance_of(Group), user, access_params, type: provider)
               .and_return(double(execute: true))
 
@@ -194,14 +194,14 @@ shared_examples 'a GitHub-ish import controller: POST create' do
         end
 
         it "doesn't create the namespace" do
-          expect(Gitlab::GithubImport::ProjectCreator)
+          expect(Gitlab::LegacyGithubImport::ProjectCreator)
             .to receive(:new).and_return(double(execute: true))
 
           expect { post :create, format: :js }.not_to change(Namespace, :count)
         end
 
         it "takes the current user's namespace" do
-          expect(Gitlab::GithubImport::ProjectCreator)
+          expect(Gitlab::LegacyGithubImport::ProjectCreator)
             .to receive(:new).with(provider_repo, provider_repo.name, user.namespace, user, access_params, type: provider)
               .and_return(double(execute: true))
 
@@ -219,7 +219,7 @@ shared_examples 'a GitHub-ish import controller: POST create' do
       end
 
       it 'takes the selected namespace and name' do
-        expect(Gitlab::GithubImport::ProjectCreator)
+        expect(Gitlab::LegacyGithubImport::ProjectCreator)
           .to receive(:new).with(provider_repo, test_name, test_namespace, user, access_params, type: provider)
             .and_return(double(execute: true))
 
@@ -227,7 +227,7 @@ shared_examples 'a GitHub-ish import controller: POST create' do
       end
 
       it 'takes the selected name and default namespace' do
-        expect(Gitlab::GithubImport::ProjectCreator)
+        expect(Gitlab::LegacyGithubImport::ProjectCreator)
           .to receive(:new).with(provider_repo, test_name, user.namespace, user, access_params, type: provider)
             .and_return(double(execute: true))
 
@@ -245,7 +245,7 @@ shared_examples 'a GitHub-ish import controller: POST create' do
       end
 
       it 'takes the selected namespace and name' do
-        expect(Gitlab::GithubImport::ProjectCreator)
+        expect(Gitlab::LegacyGithubImport::ProjectCreator)
           .to receive(:new).with(provider_repo, test_name, nested_namespace, user, access_params, type: provider)
             .and_return(double(execute: true))
 
@@ -257,7 +257,7 @@ shared_examples 'a GitHub-ish import controller: POST create' do
       let(:test_name) { 'test_name' }
 
       it 'takes the selected namespace and name' do
-        expect(Gitlab::GithubImport::ProjectCreator)
+        expect(Gitlab::LegacyGithubImport::ProjectCreator)
           .to receive(:new).with(provider_repo, test_name, kind_of(Namespace), user, access_params, type: provider)
             .and_return(double(execute: true))
 
@@ -265,7 +265,7 @@ shared_examples 'a GitHub-ish import controller: POST create' do
       end
 
       it 'creates the namespaces' do
-        allow(Gitlab::GithubImport::ProjectCreator)
+        allow(Gitlab::LegacyGithubImport::ProjectCreator)
           .to receive(:new).with(provider_repo, test_name, kind_of(Namespace), user, access_params, type: provider)
             .and_return(double(execute: true))
 
@@ -274,7 +274,7 @@ shared_examples 'a GitHub-ish import controller: POST create' do
       end
 
       it 'new namespace has the right parent' do
-        allow(Gitlab::GithubImport::ProjectCreator)
+        allow(Gitlab::LegacyGithubImport::ProjectCreator)
           .to receive(:new).with(provider_repo, test_name, kind_of(Namespace), user, access_params, type: provider)
             .and_return(double(execute: true))
 
@@ -289,7 +289,7 @@ shared_examples 'a GitHub-ish import controller: POST create' do
       let!(:parent_namespace) { create(:group, name: 'foo', owner: user) }
 
       it 'takes the selected namespace and name' do
-        expect(Gitlab::GithubImport::ProjectCreator)
+        expect(Gitlab::LegacyGithubImport::ProjectCreator)
           .to receive(:new).with(provider_repo, test_name, kind_of(Namespace), user, access_params, type: provider)
             .and_return(double(execute: true))
 
@@ -297,7 +297,7 @@ shared_examples 'a GitHub-ish import controller: POST create' do
       end
 
       it 'creates the namespaces' do
-        allow(Gitlab::GithubImport::ProjectCreator)
+        allow(Gitlab::LegacyGithubImport::ProjectCreator)
           .to receive(:new).with(provider_repo, test_name, kind_of(Namespace), user, access_params, type: provider)
             .and_return(double(execute: true))
 
diff --git a/spec/support/cycle_analytics_helpers.rb b/spec/support/cycle_analytics_helpers.rb
index 934b4557ba2..26fd271ce31 100644
--- a/spec/support/cycle_analytics_helpers.rb
+++ b/spec/support/cycle_analytics_helpers.rb
@@ -94,6 +94,7 @@ module CycleAnalyticsHelpers
       ref: 'master',
       tag: false,
       name: 'dummy',
+      stage: 'dummy',
       pipeline: dummy_pipeline,
       protected: false)
   end
diff --git a/spec/support/features/discussion_comments_shared_example.rb b/spec/support/features/discussion_comments_shared_example.rb
index aabc64d972b..c24940393f9 100644
--- a/spec/support/features/discussion_comments_shared_example.rb
+++ b/spec/support/features/discussion_comments_shared_example.rb
@@ -71,7 +71,7 @@ shared_examples 'discussion comments' do |resource_name|
       expect(page).not_to have_selector menu_selector
 
       find(toggle_selector).click
-      find('body').click
+      execute_script("document.querySelector('body').click()")
 
       expect(page).not_to have_selector menu_selector
     end
diff --git a/spec/support/gitaly.rb b/spec/support/gitaly.rb
index 89fb362cf14..1512b3e0620 100644
--- a/spec/support/gitaly.rb
+++ b/spec/support/gitaly.rb
@@ -1,6 +1,10 @@
 RSpec.configure do |config|
   config.before(:each) do |example|
-    next if example.metadata[:skip_gitaly_mock]
-    allow(Gitlab::GitalyClient).to receive(:feature_enabled?).and_return(true)
+    if example.metadata[:disable_gitaly]
+      allow(Gitlab::GitalyClient).to receive(:feature_enabled?).and_return(false)
+    else
+      next if example.metadata[:skip_gitaly_mock]
+      allow(Gitlab::GitalyClient).to receive(:feature_enabled?).and_return(true)
+    end
   end
 end
diff --git a/spec/support/google_api/cloud_platform_helpers.rb b/spec/support/google_api/cloud_platform_helpers.rb
new file mode 100644
index 00000000000..dabf0db7666
--- /dev/null
+++ b/spec/support/google_api/cloud_platform_helpers.rb
@@ -0,0 +1,119 @@
+module GoogleApi
+  module CloudPlatformHelpers
+    def stub_google_api_validate_token
+      request.session[GoogleApi::CloudPlatform::Client.session_key_for_token] = 'token'
+      request.session[GoogleApi::CloudPlatform::Client.session_key_for_expires_at] = 1.hour.since.to_i.to_s
+    end
+
+    def stub_google_api_expired_token
+      request.session[GoogleApi::CloudPlatform::Client.session_key_for_token] = 'token'
+      request.session[GoogleApi::CloudPlatform::Client.session_key_for_expires_at] = 1.hour.ago.to_i.to_s
+    end
+
+    def stub_cloud_platform_get_zone_cluster(project_id, zone, cluster_id, **options)
+      WebMock.stub_request(:get, cloud_platform_get_zone_cluster_url(project_id, zone, cluster_id))
+        .to_return(cloud_platform_response(cloud_platform_cluster_body(options)))
+    end
+
+    def stub_cloud_platform_get_zone_cluster_error(project_id, zone, cluster_id)
+      WebMock.stub_request(:get, cloud_platform_get_zone_cluster_url(project_id, zone, cluster_id))
+        .to_return(status: [500, "Internal Server Error"])
+    end
+
+    def stub_cloud_platform_create_cluster(project_id, zone, **options)
+      WebMock.stub_request(:post, cloud_platform_create_cluster_url(project_id, zone))
+        .to_return(cloud_platform_response(cloud_platform_operation_body(options)))
+    end
+
+    def stub_cloud_platform_create_cluster_error(project_id, zone)
+      WebMock.stub_request(:post, cloud_platform_create_cluster_url(project_id, zone))
+        .to_return(status: [500, "Internal Server Error"])
+    end
+
+    def stub_cloud_platform_get_zone_operation(project_id, zone, operation_id, **options)
+      WebMock.stub_request(:get, cloud_platform_get_zone_operation_url(project_id, zone, operation_id))
+        .to_return(cloud_platform_response(cloud_platform_operation_body(options)))
+    end
+
+    def stub_cloud_platform_get_zone_operation_error(project_id, zone, operation_id)
+      WebMock.stub_request(:get, cloud_platform_get_zone_operation_url(project_id, zone, operation_id))
+        .to_return(status: [500, "Internal Server Error"])
+    end
+
+    def cloud_platform_get_zone_cluster_url(project_id, zone, cluster_id)
+      "https://container.googleapis.com/v1/projects/#{project_id}/zones/#{zone}/clusters/#{cluster_id}"
+    end
+
+    def cloud_platform_create_cluster_url(project_id, zone)
+      "https://container.googleapis.com/v1/projects/#{project_id}/zones/#{zone}/clusters"
+    end
+
+    def cloud_platform_get_zone_operation_url(project_id, zone, operation_id)
+      "https://container.googleapis.com/v1/projects/#{project_id}/zones/#{zone}/operations/#{operation_id}"
+    end
+
+    def cloud_platform_response(body)
+      { status: 200, headers: { 'Content-Type' => 'application/json' }, body: body.to_json }
+    end
+
+    def load_sample_cert
+      pem_file = File.expand_path(Rails.root.join('spec/fixtures/clusters/sample_cert.pem'))
+      Base64.encode64(File.read(pem_file))
+    end
+
+    ##
+    # gcloud container clusters create
+    # https://cloud.google.com/container-engine/reference/rest/v1/projects.zones.clusters/create
+    # rubocop:disable Metrics/CyclomaticComplexity
+    # rubocop:disable Metrics/PerceivedComplexity
+    def cloud_platform_cluster_body(**options)
+      {
+        "name": options[:name] || 'string',
+        "description": options[:description] || 'string',
+        "initialNodeCount": options[:initialNodeCount] || 'number',
+        "masterAuth": {
+          "username": options[:username] || 'string',
+          "password": options[:password] || 'string',
+          "clusterCaCertificate": options[:clusterCaCertificate] || load_sample_cert,
+          "clientCertificate": options[:clientCertificate] || 'string',
+          "clientKey": options[:clientKey] || 'string'
+        },
+        "loggingService": options[:loggingService] || 'string',
+        "monitoringService": options[:monitoringService] || 'string',
+        "network": options[:network] || 'string',
+        "clusterIpv4Cidr": options[:clusterIpv4Cidr] || 'string',
+        "subnetwork": options[:subnetwork] || 'string',
+        "enableKubernetesAlpha": options[:enableKubernetesAlpha] || 'boolean',
+        "labelFingerprint": options[:labelFingerprint] || 'string',
+        "selfLink": options[:selfLink] || 'string',
+        "zone": options[:zone] || 'string',
+        "endpoint": options[:endpoint] || 'string',
+        "initialClusterVersion": options[:initialClusterVersion] || 'string',
+        "currentMasterVersion": options[:currentMasterVersion] || 'string',
+        "currentNodeVersion": options[:currentNodeVersion] || 'string',
+        "createTime": options[:createTime] || 'string',
+        "status": options[:status] || 'RUNNING',
+        "statusMessage": options[:statusMessage] || 'string',
+        "nodeIpv4CidrSize": options[:nodeIpv4CidrSize] || 'number',
+        "servicesIpv4Cidr": options[:servicesIpv4Cidr] || 'string',
+        "currentNodeCount": options[:currentNodeCount] || 'number',
+        "expireTime": options[:expireTime] || 'string'
+      }
+    end
+
+    def cloud_platform_operation_body(**options)
+      {
+        "name": options[:name] || 'operation-1234567891234-1234567',
+        "zone": options[:zone] || 'us-central1-a',
+        "operationType": options[:operationType] || 'CREATE_CLUSTER',
+        "status": options[:status] || 'PENDING',
+        "detail": options[:detail] || 'detail',
+        "statusMessage": options[:statusMessage] || '',
+        "selfLink": options[:selfLink] || 'https://container.googleapis.com/v1/projects/123456789101/zones/us-central1-a/operations/operation-1234567891234-1234567',
+        "targetLink": options[:targetLink] || 'https://container.googleapis.com/v1/projects/123456789101/zones/us-central1-a/clusters/test-cluster',
+        "startTime": options[:startTime] || '2017-09-13T16:49:13.055601589Z',
+        "endTime": options[:endTime] || ''
+      }
+    end
+  end
+end
diff --git a/spec/support/kubernetes_helpers.rb b/spec/support/kubernetes_helpers.rb
index c92f78b324c..e46b61b6461 100644
--- a/spec/support/kubernetes_helpers.rb
+++ b/spec/support/kubernetes_helpers.rb
@@ -9,22 +9,51 @@ module KubernetesHelpers
     kube_response(kube_pods_body)
   end
 
-  def stub_kubeclient_discover
-    WebMock.stub_request(:get, service.api_url + '/api/v1').to_return(kube_response(kube_v1_discovery_body))
+  def stub_kubeclient_discover(api_url)
+    WebMock.stub_request(:get, api_url + '/api/v1').to_return(kube_response(kube_v1_discovery_body))
   end
 
   def stub_kubeclient_pods(response = nil)
-    stub_kubeclient_discover
+    stub_kubeclient_discover(service.api_url)
     pods_url = service.api_url + "/api/v1/namespaces/#{service.actual_namespace}/pods"
 
     WebMock.stub_request(:get, pods_url).to_return(response || kube_pods_response)
   end
 
+  def stub_kubeclient_get_secrets(api_url, **options)
+    WebMock.stub_request(:get, api_url + '/api/v1/secrets')
+      .to_return(kube_response(kube_v1_secrets_body(options)))
+  end
+
+  def stub_kubeclient_get_secrets_error(api_url)
+    WebMock.stub_request(:get, api_url + '/api/v1/secrets')
+      .to_return(status: [404, "Internal Server Error"])
+  end
+
+  def kube_v1_secrets_body(**options)
+    {
+      "kind" => "SecretList",
+      "apiVersion": "v1",
+      "items" => [
+        {
+          "metadata": {
+            "name": options[:metadata_name] || "default-token-1",
+            "namespace": "kube-system"
+          },
+          "data": {
+            "token": options[:token] || Base64.encode64('token-sample-123')
+          }
+        }
+      ]
+    }
+  end
+
   def kube_v1_discovery_body
     {
       "kind" => "APIResourceList",
       "resources" => [
-        { "name" => "pods", "namespaced" => true, "kind" => "Pod" }
+        { "name" => "pods", "namespaced" => true, "kind" => "Pod" },
+        { "name" => "secrets", "namespaced" => true, "kind" => "Secret" }
       ]
     }
   end
diff --git a/spec/support/legacy_path_redirect_shared_examples.rb b/spec/support/legacy_path_redirect_shared_examples.rb
new file mode 100644
index 00000000000..f300bdd48b1
--- /dev/null
+++ b/spec/support/legacy_path_redirect_shared_examples.rb
@@ -0,0 +1,13 @@
+shared_examples 'redirecting a legacy path' do |source, target|
+  include RSpec::Rails::RequestExampleGroup
+
+  it "redirects #{source} to #{target} when the resource does not exist" do
+    expect(get(source)).to redirect_to(target)
+  end
+
+  it "does not redirect #{source} to #{target} when the resource exists" do
+    resource
+
+    expect(get(source)).not_to redirect_to(target)
+  end
+end
diff --git a/spec/support/matchers/access_matchers_for_controller.rb b/spec/support/matchers/access_matchers_for_controller.rb
index bb6b7c63ee9..cdb62a5deee 100644
--- a/spec/support/matchers/access_matchers_for_controller.rb
+++ b/spec/support/matchers/access_matchers_for_controller.rb
@@ -5,7 +5,7 @@ module AccessMatchersForController
   extend RSpec::Matchers::DSL
   include Warden::Test::Helpers
 
-  EXPECTED_STATUS_CODE_ALLOWED = [200, 201, 302].freeze
+  EXPECTED_STATUS_CODE_ALLOWED = [200, 201, 204, 302].freeze
   EXPECTED_STATUS_CODE_DENIED = [401, 404].freeze
 
   def emulate_user(role, membership = nil)
diff --git a/spec/support/matchers/security_header_matcher.rb b/spec/support/matchers/security_header_matcher.rb
new file mode 100644
index 00000000000..f8518d13ebb
--- /dev/null
+++ b/spec/support/matchers/security_header_matcher.rb
@@ -0,0 +1,5 @@
+RSpec::Matchers.define :include_security_headers do |expected|
+  match do |actual|
+    expect(actual.headers).to include('X-Content-Type-Options')
+  end
+end
diff --git a/spec/support/shared_examples/requests/api/custom_attributes_shared_examples.rb b/spec/support/shared_examples/requests/api/custom_attributes_shared_examples.rb
index 6bc39f2f279..4e18804b937 100644
--- a/spec/support/shared_examples/requests/api/custom_attributes_shared_examples.rb
+++ b/spec/support/shared_examples/requests/api/custom_attributes_shared_examples.rb
@@ -3,7 +3,9 @@ shared_examples 'custom attributes endpoints' do |attributable_name|
   let!(:custom_attribute2) { attributable.custom_attributes.create key: 'bar', value: 'bar' }
 
   describe "GET /#{attributable_name} with custom attributes filter" do
-    let!(:other_attributable) { create attributable.class.name.underscore }
+    before do
+      other_attributable
+    end
 
     context 'with an unauthorized user' do
       it 'does not filter by custom attributes' do
@@ -11,6 +13,7 @@ shared_examples 'custom attributes endpoints' do |attributable_name|
 
         expect(response).to have_gitlab_http_status(200)
         expect(json_response.size).to be 2
+        expect(json_response.map { |r| r['id'] }).to contain_exactly attributable.id, other_attributable.id
       end
     end
 
diff --git a/spec/validators/dynamic_path_validator_spec.rb b/spec/validators/dynamic_path_validator_spec.rb
deleted file mode 100644
index 08e1c5a728a..00000000000
--- a/spec/validators/dynamic_path_validator_spec.rb
+++ /dev/null
@@ -1,97 +0,0 @@
-require 'spec_helper'
-
-describe DynamicPathValidator do
-  let(:validator) { described_class.new(attributes: [:path]) }
-
-  def expect_handles_invalid_utf8
-    expect { yield('\255invalid') }.to be_falsey
-  end
-
-  describe '.valid_user_path' do
-    it 'handles invalid utf8' do
-      expect(described_class.valid_user_path?("a\0weird\255path")).to be_falsey
-    end
-  end
-
-  describe '.valid_group_path' do
-    it 'handles invalid utf8' do
-      expect(described_class.valid_group_path?("a\0weird\255path")).to be_falsey
-    end
-  end
-
-  describe '.valid_project_path' do
-    it 'handles invalid utf8' do
-      expect(described_class.valid_project_path?("a\0weird\255path")).to be_falsey
-    end
-  end
-
-  describe '#path_valid_for_record?' do
-    context 'for project' do
-      it 'calls valid_project_path?' do
-        project = build(:project, path: 'activity')
-
-        expect(described_class).to receive(:valid_project_path?).with(project.full_path).and_call_original
-
-        expect(validator.path_valid_for_record?(project, 'activity')).to be_truthy
-      end
-    end
-
-    context 'for group' do
-      it 'calls valid_group_path?' do
-        group = build(:group, :nested, path: 'activity')
-
-        expect(described_class).to receive(:valid_group_path?).with(group.full_path).and_call_original
-
-        expect(validator.path_valid_for_record?(group, 'activity')).to be_falsey
-      end
-    end
-
-    context 'for user' do
-      it 'calls valid_user_path?' do
-        user = build(:user, username: 'activity')
-
-        expect(described_class).to receive(:valid_user_path?).with(user.full_path).and_call_original
-
-        expect(validator.path_valid_for_record?(user, 'activity')).to be_truthy
-      end
-    end
-
-    context 'for user namespace' do
-      it 'calls valid_user_path?' do
-        user = create(:user, username: 'activity')
-        namespace = user.namespace
-
-        expect(described_class).to receive(:valid_user_path?).with(namespace.full_path).and_call_original
-
-        expect(validator.path_valid_for_record?(namespace, 'activity')).to be_truthy
-      end
-    end
-  end
-
-  describe '#validates_each' do
-    it 'adds a message when the path is not in the correct format' do
-      group = build(:group)
-
-      validator.validate_each(group, :path, "Path with spaces, and comma's!")
-
-      expect(group.errors[:path]).to include(Gitlab::PathRegex.namespace_format_message)
-    end
-
-    it 'adds a message when the path is not in the correct format' do
-      group = build(:group, path: 'users')
-
-      validator.validate_each(group, :path, 'users')
-
-      expect(group.errors[:path]).to include('users is a reserved name')
-    end
-
-    it 'updating to an invalid path is not allowed' do
-      project = create(:project)
-      project.path = 'update'
-
-      validator.validate_each(project, :path, 'update')
-
-      expect(project.errors[:path]).to include('update is a reserved name')
-    end
-  end
-end
diff --git a/spec/validators/namespace_path_validator_spec.rb b/spec/validators/namespace_path_validator_spec.rb
new file mode 100644
index 00000000000..61e2845f35f
--- /dev/null
+++ b/spec/validators/namespace_path_validator_spec.rb
@@ -0,0 +1,38 @@
+require 'spec_helper'
+
+describe NamespacePathValidator do
+  let(:validator) { described_class.new(attributes: [:path]) }
+
+  describe '.valid_path?' do
+    it 'handles invalid utf8' do
+      expect(described_class.valid_path?("a\0weird\255path")).to be_falsey
+    end
+  end
+
+  describe '#validates_each' do
+    it 'adds a message when the path is not in the correct format' do
+      group = build(:group)
+
+      validator.validate_each(group, :path, "Path with spaces, and comma's!")
+
+      expect(group.errors[:path]).to include(Gitlab::PathRegex.namespace_format_message)
+    end
+
+    it 'adds a message when the path is reserved when creating' do
+      group = build(:group, path: 'help')
+
+      validator.validate_each(group, :path, 'help')
+
+      expect(group.errors[:path]).to include('help is a reserved name')
+    end
+
+    it 'adds a message when the path is reserved when updating' do
+      group = create(:group)
+      group.path = 'help'
+
+      validator.validate_each(group, :path, 'help')
+
+      expect(group.errors[:path]).to include('help is a reserved name')
+    end
+  end
+end
diff --git a/spec/validators/project_path_validator_spec.rb b/spec/validators/project_path_validator_spec.rb
new file mode 100644
index 00000000000..8bb5e72dc22
--- /dev/null
+++ b/spec/validators/project_path_validator_spec.rb
@@ -0,0 +1,38 @@
+require 'spec_helper'
+
+describe ProjectPathValidator do
+  let(:validator) { described_class.new(attributes: [:path]) }
+
+  describe '.valid_path?' do
+    it 'handles invalid utf8' do
+      expect(described_class.valid_path?("a\0weird\255path")).to be_falsey
+    end
+  end
+
+  describe '#validates_each' do
+    it 'adds a message when the path is not in the correct format' do
+      project = build(:project)
+
+      validator.validate_each(project, :path, "Path with spaces, and comma's!")
+
+      expect(project.errors[:path]).to include(Gitlab::PathRegex.project_path_format_message)
+    end
+
+    it 'adds a message when the path is reserved when creating' do
+      project = build(:project, path: 'blob')
+
+      validator.validate_each(project, :path, 'blob')
+
+      expect(project.errors[:path]).to include('blob is a reserved name')
+    end
+
+    it 'adds a message when the path is reserved when updating' do
+      project = create(:project)
+      project.path = 'blob'
+
+      validator.validate_each(project, :path, 'blob')
+
+      expect(project.errors[:path]).to include('blob is a reserved name')
+    end
+  end
+end
diff --git a/spec/validators/user_path_validator_spec.rb b/spec/validators/user_path_validator_spec.rb
new file mode 100644
index 00000000000..a46089cc24f
--- /dev/null
+++ b/spec/validators/user_path_validator_spec.rb
@@ -0,0 +1,38 @@
+require 'spec_helper'
+
+describe UserPathValidator do
+  let(:validator) { described_class.new(attributes: [:username]) }
+
+  describe '.valid_path?' do
+    it 'handles invalid utf8' do
+      expect(described_class.valid_path?("a\0weird\255path")).to be_falsey
+    end
+  end
+
+  describe '#validates_each' do
+    it 'adds a message when the path is not in the correct format' do
+      user = build(:user)
+
+      validator.validate_each(user, :username, "Path with spaces, and comma's!")
+
+      expect(user.errors[:username]).to include(Gitlab::PathRegex.namespace_format_message)
+    end
+
+    it 'adds a message when the path is reserved when creating' do
+      user = build(:user, username: 'help')
+
+      validator.validate_each(user, :username, 'help')
+
+      expect(user.errors[:username]).to include('help is a reserved name')
+    end
+
+    it 'adds a message when the path is reserved when updating' do
+      user = create(:user)
+      user.username = 'help'
+
+      validator.validate_each(user, :username, 'help')
+
+      expect(user.errors[:username]).to include('help is a reserved name')
+    end
+  end
+end
diff --git a/spec/views/projects/commit/branches.html.haml_spec.rb b/spec/views/projects/commit/branches.html.haml_spec.rb
new file mode 100644
index 00000000000..b9d4dc80fe0
--- /dev/null
+++ b/spec/views/projects/commit/branches.html.haml_spec.rb
@@ -0,0 +1,109 @@
+require 'spec_helper'
+
+describe 'projects/commit/branches.html.haml' do
+  let(:project) { create(:project, :repository) }
+
+  before do
+    assign(:project, project)
+  end
+
+  context 'when branches and tags are available' do
+    before do
+      assign(:branches, ['master', 'test-branch'])
+      assign(:branches_limit_exceeded, false)
+      assign(:tags, ['tag1'])
+      assign(:tags_limit_exceeded, false)
+
+      render
+    end
+
+    it 'shows default branch' do
+      expect(rendered).to have_link('master')
+    end
+
+    it 'shows js expand link' do
+      expect(rendered).to have_selector('.js-details-expand')
+    end
+
+    it 'shows branch and tag links' do
+      expect(rendered).to have_link('test-branch')
+      expect(rendered).to have_link('tag1')
+    end
+  end
+
+  context 'when branches are available but no tags' do
+    before do
+      assign(:branches, ['master', 'test-branch'])
+      assign(:branches_limit_exceeded, false)
+      assign(:tags, [])
+      assign(:tags_limit_exceeded, true)
+
+      render
+    end
+
+    it 'shows branches' do
+      expect(rendered).to have_link('master')
+      expect(rendered).to have_link('test-branch')
+    end
+
+    it 'shows js expand link' do
+      expect(rendered).to have_selector('.js-details-expand')
+    end
+
+    it 'shows limit exceeded message for tags' do
+      expect(rendered).to have_text('Tags unavailable')
+    end
+  end
+
+  context 'when tags are available but no branches (just default)' do
+    before do
+      assign(:branches, ['master'])
+      assign(:branches_limit_exceeded, true)
+      assign(:tags, %w(tag1 tag2))
+      assign(:tags_limit_exceeded, false)
+
+      render
+    end
+
+    it 'shows default branch' do
+      expect(rendered).to have_text('master')
+    end
+
+    it 'shows js expand link' do
+      expect(rendered).to have_selector('.js-details-expand')
+    end
+
+    it 'shows tags' do
+      expect(rendered).to have_link('tag1')
+      expect(rendered).to have_link('tag2')
+    end
+
+    it 'shows limit exceeded for branches' do
+      expect(rendered).to have_text('Branches unavailable')
+    end
+  end
+
+  context 'when branches and tags are not available' do
+    before do
+      assign(:branches, ['master'])
+      assign(:branches_limit_exceeded, true)
+      assign(:tags, [])
+      assign(:tags_limit_exceeded, true)
+
+      render
+    end
+
+    it 'shows default branch' do
+      expect(rendered).to have_text('master')
+    end
+
+    it 'shows js expand link' do
+      expect(rendered).to have_selector('.js-details-expand')
+    end
+
+    it 'shows too many to search' do
+      expect(rendered).to have_text('Branches unavailable')
+      expect(rendered).to have_text('Tags unavailable')
+    end
+  end
+end
diff --git a/spec/workers/cluster_provision_worker_spec.rb b/spec/workers/cluster_provision_worker_spec.rb
index 11f208289db..8054ec11a48 100644
--- a/spec/workers/cluster_provision_worker_spec.rb
+++ b/spec/workers/cluster_provision_worker_spec.rb
@@ -2,11 +2,22 @@ require 'spec_helper'
 
 describe ClusterProvisionWorker do
   describe '#perform' do
-    context 'when cluster exists' do
-      let(:cluster) { create(:gcp_cluster) }
+    context 'when provider type is gcp' do
+      let(:cluster) { create(:cluster, provider_type: :gcp, provider_gcp: provider) }
+      let(:provider) { create(:cluster_provider_gcp, :scheduled) }
 
       it 'provision a cluster' do
-        expect_any_instance_of(Ci::ProvisionClusterService).to receive(:execute)
+        expect_any_instance_of(Clusters::Gcp::ProvisionService).to receive(:execute)
+
+        described_class.new.perform(cluster.id)
+      end
+    end
+
+    context 'when provider type is user' do
+      let(:cluster) { create(:cluster, provider_type: :user) }
+
+      it 'does not provision a cluster' do
+        expect_any_instance_of(Clusters::Gcp::ProvisionService).not_to receive(:execute)
 
         described_class.new.perform(cluster.id)
       end
@@ -14,7 +25,7 @@ describe ClusterProvisionWorker do
 
     context 'when cluster does not exist' do
       it 'does not provision a cluster' do
-        expect_any_instance_of(Ci::ProvisionClusterService).not_to receive(:execute)
+        expect_any_instance_of(Clusters::Gcp::ProvisionService).not_to receive(:execute)
 
         described_class.new.perform(123)
       end
diff --git a/spec/workers/concerns/gitlab/github_import/notify_upon_death_spec.rb b/spec/workers/concerns/gitlab/github_import/notify_upon_death_spec.rb
new file mode 100644
index 00000000000..4b9aa9a7ef8
--- /dev/null
+++ b/spec/workers/concerns/gitlab/github_import/notify_upon_death_spec.rb
@@ -0,0 +1,49 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::NotifyUponDeath do
+  let(:worker_class) do
+    Class.new do
+      include Sidekiq::Worker
+      include Gitlab::GithubImport::NotifyUponDeath
+    end
+  end
+
+  describe '.sidekiq_retries_exhausted' do
+    it 'notifies the JobWaiter when 3 arguments are given and the last is a String' do
+      job = { 'args' => [12, {}, '123abc'], 'jid' => '123' }
+
+      expect(Gitlab::JobWaiter)
+        .to receive(:notify)
+        .with('123abc', '123')
+
+      worker_class.sidekiq_retries_exhausted_block.call(job)
+    end
+
+    it 'does not notify the JobWaiter when only 2 arguments are given' do
+      job = { 'args' => [12, {}], 'jid' => '123' }
+
+      expect(Gitlab::JobWaiter)
+        .not_to receive(:notify)
+
+      worker_class.sidekiq_retries_exhausted_block.call(job)
+    end
+
+    it 'does not notify the JobWaiter when only 1 argument is given' do
+      job = { 'args' => [12], 'jid' => '123' }
+
+      expect(Gitlab::JobWaiter)
+        .not_to receive(:notify)
+
+      worker_class.sidekiq_retries_exhausted_block.call(job)
+    end
+
+    it 'does not notify the JobWaiter when the last argument is not a String' do
+      job = { 'args' => [12, {}, 40], 'jid' => '123' }
+
+      expect(Gitlab::JobWaiter)
+        .not_to receive(:notify)
+
+      worker_class.sidekiq_retries_exhausted_block.call(job)
+    end
+  end
+end
diff --git a/spec/workers/concerns/gitlab/github_import/object_importer_spec.rb b/spec/workers/concerns/gitlab/github_import/object_importer_spec.rb
new file mode 100644
index 00000000000..3ccf06f2d7d
--- /dev/null
+++ b/spec/workers/concerns/gitlab/github_import/object_importer_spec.rb
@@ -0,0 +1,70 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::ObjectImporter do
+  let(:worker) do
+    Class.new do
+      include(Gitlab::GithubImport::ObjectImporter)
+
+      def counter_name
+        :dummy_counter
+      end
+
+      def counter_description
+        'This is a counter'
+      end
+    end.new
+  end
+
+  describe '#import' do
+    it 'imports the object' do
+      representation_class = double(:representation_class)
+      importer_class = double(:importer_class)
+      importer_instance = double(:importer_instance)
+      representation = double(:representation)
+      project = double(:project, path_with_namespace: 'foo/bar')
+      client = double(:client)
+
+      expect(worker)
+        .to receive(:representation_class)
+        .and_return(representation_class)
+
+      expect(worker)
+        .to receive(:importer_class)
+        .and_return(importer_class)
+
+      expect(representation_class)
+        .to receive(:from_json_hash)
+        .with(an_instance_of(Hash))
+        .and_return(representation)
+
+      expect(importer_class)
+        .to receive(:new)
+        .with(representation, project, client)
+        .and_return(importer_instance)
+
+      expect(importer_instance)
+        .to receive(:execute)
+
+      expect(worker.counter)
+        .to receive(:increment)
+        .with(project: 'foo/bar')
+        .and_call_original
+
+      worker.import(project, client, { 'number' => 10 })
+    end
+  end
+
+  describe '#counter' do
+    it 'returns a Prometheus counter' do
+      expect(worker)
+        .to receive(:counter_name)
+        .and_call_original
+
+      expect(worker)
+        .to receive(:counter_description)
+        .and_call_original
+
+      worker.counter
+    end
+  end
+end
diff --git a/spec/workers/concerns/gitlab/github_import/queue_spec.rb b/spec/workers/concerns/gitlab/github_import/queue_spec.rb
new file mode 100644
index 00000000000..321ae3fe978
--- /dev/null
+++ b/spec/workers/concerns/gitlab/github_import/queue_spec.rb
@@ -0,0 +1,12 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::Queue do
+  it 'sets the Sidekiq options for the worker' do
+    worker = Class.new do
+      include Sidekiq::Worker
+      include Gitlab::GithubImport::Queue
+    end
+
+    expect(worker.sidekiq_options['queue']).to eq('github_importer')
+  end
+end
diff --git a/spec/workers/concerns/gitlab/github_import/rescheduling_methods_spec.rb b/spec/workers/concerns/gitlab/github_import/rescheduling_methods_spec.rb
new file mode 100644
index 00000000000..8de4059c4ae
--- /dev/null
+++ b/spec/workers/concerns/gitlab/github_import/rescheduling_methods_spec.rb
@@ -0,0 +1,110 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::ReschedulingMethods do
+  let(:worker) do
+    Class.new { include(Gitlab::GithubImport::ReschedulingMethods) }.new
+  end
+
+  describe '#perform' do
+    context 'with a non-existing project' do
+      it 'does not perform any work' do
+        expect(worker)
+          .not_to receive(:try_import)
+
+        worker.perform(-1, {})
+      end
+
+      it 'notifies any waiters so they do not wait forever' do
+        expect(worker)
+          .to receive(:notify_waiter)
+          .with('123')
+
+        worker.perform(-1, {}, '123')
+      end
+    end
+
+    context 'with an existing project' do
+      let(:project) { create(:project) }
+
+      it 'notifies any waiters upon successfully importing the data' do
+        expect(worker)
+          .to receive(:try_import)
+          .with(
+            an_instance_of(Project),
+            an_instance_of(Gitlab::GithubImport::Client),
+            { 'number' => 2 }
+          )
+          .and_return(true)
+
+        expect(worker)
+          .to receive(:notify_waiter).with('123')
+
+        worker.perform(project.id, { 'number' => 2 }, '123')
+      end
+
+      it 'reschedules itself if the data could not be imported' do
+        expect(worker)
+          .to receive(:try_import)
+          .with(
+            an_instance_of(Project),
+            an_instance_of(Gitlab::GithubImport::Client),
+            { 'number' => 2 }
+          )
+          .and_return(false)
+
+        expect(worker)
+          .not_to receive(:notify_waiter)
+
+        expect_any_instance_of(Gitlab::GithubImport::Client)
+          .to receive(:rate_limit_resets_in)
+          .and_return(14)
+
+        expect(worker.class)
+          .to receive(:perform_in)
+          .with(14, project.id, { 'number' => 2 }, '123')
+
+        worker.perform(project.id, { 'number' => 2 }, '123')
+      end
+    end
+  end
+
+  describe '#try_import' do
+    it 'returns true when the import succeeds' do
+      expect(worker)
+        .to receive(:import)
+        .with(10, 20)
+
+      expect(worker.try_import(10, 20)).to eq(true)
+    end
+
+    it 'returns false when the import fails due to hitting the GitHub API rate limit' do
+      expect(worker)
+        .to receive(:import)
+        .with(10, 20)
+        .and_raise(Gitlab::GithubImport::RateLimitError)
+
+      expect(worker.try_import(10, 20)).to eq(false)
+    end
+  end
+
+  describe '#notify_waiter' do
+    it 'notifies the waiter if a waiter key is specified' do
+      expect(worker)
+        .to receive(:jid)
+        .and_return('abc123')
+
+      expect(Gitlab::JobWaiter)
+        .to receive(:notify)
+        .with('123', 'abc123')
+
+      worker.notify_waiter('123')
+    end
+
+    it 'does not notify any waiters if no waiter key is specified' do
+      expect(Gitlab::JobWaiter)
+        .not_to receive(:notify)
+
+      worker.notify_waiter(nil)
+    end
+  end
+end
diff --git a/spec/workers/concerns/gitlab/github_import/stage_methods_spec.rb b/spec/workers/concerns/gitlab/github_import/stage_methods_spec.rb
new file mode 100644
index 00000000000..241e8a2b6d3
--- /dev/null
+++ b/spec/workers/concerns/gitlab/github_import/stage_methods_spec.rb
@@ -0,0 +1,77 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::StageMethods do
+  let(:project) { create(:project) }
+  let(:worker) do
+    Class.new { include(Gitlab::GithubImport::StageMethods) }.new
+  end
+
+  describe '#perform' do
+    it 'returns if no project could be found' do
+      expect(worker).not_to receive(:try_import)
+
+      worker.perform(-1)
+    end
+
+    it 'imports the data when the project exists' do
+      allow(worker)
+        .to receive(:find_project)
+        .with(project.id)
+        .and_return(project)
+
+      expect(worker)
+        .to receive(:try_import)
+        .with(
+          an_instance_of(Gitlab::GithubImport::Client),
+          an_instance_of(Project)
+        )
+
+      worker.perform(project.id)
+    end
+  end
+
+  describe '#try_import' do
+    it 'imports the project' do
+      client = double(:client)
+
+      expect(worker)
+        .to receive(:import)
+        .with(client, project)
+
+      worker.try_import(client, project)
+    end
+
+    it 'reschedules the worker if RateLimitError was raised' do
+      client = double(:client, rate_limit_resets_in: 10)
+
+      expect(worker)
+        .to receive(:import)
+        .with(client, project)
+        .and_raise(Gitlab::GithubImport::RateLimitError)
+
+      expect(worker.class)
+        .to receive(:perform_in)
+        .with(10, project.id)
+
+      worker.try_import(client, project)
+    end
+  end
+
+  describe '#find_project' do
+    it 'returns a Project for an existing ID' do
+      project.update_column(:import_status, 'started')
+
+      expect(worker.find_project(project.id)).to eq(project)
+    end
+
+    it 'returns nil for a project that failed importing' do
+      project.update_column(:import_status, 'failed')
+
+      expect(worker.find_project(project.id)).to be_nil
+    end
+
+    it 'returns nil for a non-existing project ID' do
+      expect(worker.find_project(-1)).to be_nil
+    end
+  end
+end
diff --git a/spec/workers/gitlab/github_import/advance_stage_worker_spec.rb b/spec/workers/gitlab/github_import/advance_stage_worker_spec.rb
new file mode 100644
index 00000000000..3be49a0dee8
--- /dev/null
+++ b/spec/workers/gitlab/github_import/advance_stage_worker_spec.rb
@@ -0,0 +1,115 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::AdvanceStageWorker, :clean_gitlab_redis_shared_state do
+  let(:project) { create(:project, import_jid: '123') }
+  let(:worker) { described_class.new }
+
+  describe '#perform' do
+    context 'when the project no longer exists' do
+      it 'does not perform any work' do
+        expect(worker).not_to receive(:wait_for_jobs)
+
+        worker.perform(-1, { '123' => 2 }, :finish)
+      end
+    end
+
+    context 'when there are remaining jobs' do
+      before do
+        allow(worker)
+          .to receive(:find_project)
+          .and_return(project)
+      end
+
+      it 'reschedules itself' do
+        expect(worker)
+          .to receive(:wait_for_jobs)
+          .with({ '123' => 2 })
+          .and_return({ '123' => 1 })
+
+        expect(described_class)
+          .to receive(:perform_in)
+          .with(described_class::INTERVAL, project.id, { '123' => 1 }, :finish)
+
+        worker.perform(project.id, { '123' => 2 }, :finish)
+      end
+    end
+
+    context 'when there are no remaining jobs' do
+      before do
+        allow(worker)
+          .to receive(:find_project)
+          .and_return(project)
+
+        allow(worker)
+          .to receive(:wait_for_jobs)
+          .with({ '123' => 2 })
+          .and_return({})
+      end
+
+      it 'schedules the next stage' do
+        expect(project)
+          .to receive(:refresh_import_jid_expiration)
+
+        expect(Gitlab::GithubImport::Stage::FinishImportWorker)
+          .to receive(:perform_async)
+          .with(project.id)
+
+        worker.perform(project.id, { '123' => 2 }, :finish)
+      end
+
+      it 'raises KeyError when the stage name is invalid' do
+        expect { worker.perform(project.id, { '123' => 2 }, :kittens) }
+          .to raise_error(KeyError)
+      end
+    end
+  end
+
+  describe '#wait_for_jobs' do
+    it 'waits for jobs to complete and returns a new pair of keys to wait for' do
+      waiter1 = double(:waiter1, jobs_remaining: 1, key: '123')
+      waiter2 = double(:waiter2, jobs_remaining: 0, key: '456')
+
+      expect(Gitlab::JobWaiter)
+        .to receive(:new)
+        .ordered
+        .with(2, '123')
+        .and_return(waiter1)
+
+      expect(Gitlab::JobWaiter)
+        .to receive(:new)
+        .ordered
+        .with(1, '456')
+        .and_return(waiter2)
+
+      expect(waiter1)
+        .to receive(:wait)
+        .with(described_class::BLOCKING_WAIT_TIME)
+
+      expect(waiter2)
+        .to receive(:wait)
+        .with(described_class::BLOCKING_WAIT_TIME)
+
+      new_waiters = worker.wait_for_jobs({ '123' => 2, '456' => 1 })
+
+      expect(new_waiters).to eq({ '123' => 1 })
+    end
+  end
+
+  describe '#find_project' do
+    it 'returns a Project' do
+      project.update_column(:import_status, 'started')
+
+      found = worker.find_project(project.id)
+
+      expect(found).to be_an_instance_of(Project)
+
+      # This test is there to make sure we only select the columns we care
+      # about.
+      expect(found.attributes).to eq({ 'id' => nil, 'import_jid' => '123' })
+    end
+
+    it 'returns nil if the project import is not running' do
+      expect(worker.find_project(project.id)).to be_nil
+    end
+  end
+end
diff --git a/spec/workers/gitlab/github_import/import_diff_note_worker_spec.rb b/spec/workers/gitlab/github_import/import_diff_note_worker_spec.rb
new file mode 100644
index 00000000000..7c8c665a9b3
--- /dev/null
+++ b/spec/workers/gitlab/github_import/import_diff_note_worker_spec.rb
@@ -0,0 +1,42 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::ImportDiffNoteWorker do
+  let(:worker) { described_class.new }
+
+  describe '#import' do
+    it 'imports a diff note' do
+      project = double(:project, path_with_namespace: 'foo/bar')
+      client = double(:client)
+      importer = double(:importer)
+      hash = {
+        'noteable_id' => 42,
+        'path' => 'README.md',
+        'commit_id' => '123abc',
+        'diff_hunk' => "@@ -1 +1 @@\n-Hello\n+Hello world",
+        'user' => { 'id' => 4, 'login' => 'alice' },
+        'note' => 'Hello world',
+        'created_at' => Time.zone.now.to_s,
+        'updated_at' => Time.zone.now.to_s
+      }
+
+      expect(Gitlab::GithubImport::Importer::DiffNoteImporter)
+        .to receive(:new)
+        .with(
+          an_instance_of(Gitlab::GithubImport::Representation::DiffNote),
+          project,
+          client
+        )
+        .and_return(importer)
+
+      expect(importer)
+        .to receive(:execute)
+
+      expect(worker.counter)
+        .to receive(:increment)
+        .with(project: 'foo/bar')
+        .and_call_original
+
+      worker.import(project, client, hash)
+    end
+  end
+end
diff --git a/spec/workers/gitlab/github_import/import_issue_worker_spec.rb b/spec/workers/gitlab/github_import/import_issue_worker_spec.rb
new file mode 100644
index 00000000000..4116380ff4d
--- /dev/null
+++ b/spec/workers/gitlab/github_import/import_issue_worker_spec.rb
@@ -0,0 +1,45 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::ImportIssueWorker do
+  let(:worker) { described_class.new }
+
+  describe '#import' do
+    it 'imports an issue' do
+      project = double(:project, path_with_namespace: 'foo/bar')
+      client = double(:client)
+      importer = double(:importer)
+      hash = {
+        'iid' => 42,
+        'title' => 'My Issue',
+        'description' => 'This is my issue',
+        'milestone_number' => 4,
+        'state' => 'opened',
+        'assignees' => [{ 'id' => 4, 'login' => 'alice' }],
+        'label_names' => %w[bug],
+        'user' => { 'id' => 4, 'login' => 'alice' },
+        'created_at' => Time.zone.now.to_s,
+        'updated_at' => Time.zone.now.to_s,
+        'pull_request' => false
+      }
+
+      expect(Gitlab::GithubImport::Importer::IssueAndLabelLinksImporter)
+        .to receive(:new)
+        .with(
+          an_instance_of(Gitlab::GithubImport::Representation::Issue),
+          project,
+          client
+        )
+        .and_return(importer)
+
+      expect(importer)
+        .to receive(:execute)
+
+      expect(worker.counter)
+        .to receive(:increment)
+        .with(project: 'foo/bar')
+        .and_call_original
+
+      worker.import(project, client, hash)
+    end
+  end
+end
diff --git a/spec/workers/gitlab/github_import/import_note_worker_spec.rb b/spec/workers/gitlab/github_import/import_note_worker_spec.rb
new file mode 100644
index 00000000000..0ca825a722b
--- /dev/null
+++ b/spec/workers/gitlab/github_import/import_note_worker_spec.rb
@@ -0,0 +1,40 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::ImportNoteWorker do
+  let(:worker) { described_class.new }
+
+  describe '#import' do
+    it 'imports a note' do
+      project = double(:project, path_with_namespace: 'foo/bar')
+      client = double(:client)
+      importer = double(:importer)
+      hash = {
+        'noteable_id' => 42,
+        'noteable_type' => 'issues',
+        'user' => { 'id' => 4, 'login' => 'alice' },
+        'note' => 'Hello world',
+        'created_at' => Time.zone.now.to_s,
+        'updated_at' => Time.zone.now.to_s
+      }
+
+      expect(Gitlab::GithubImport::Importer::NoteImporter)
+        .to receive(:new)
+        .with(
+          an_instance_of(Gitlab::GithubImport::Representation::Note),
+          project,
+          client
+        )
+        .and_return(importer)
+
+      expect(importer)
+        .to receive(:execute)
+
+      expect(worker.counter)
+        .to receive(:increment)
+        .with(project: 'foo/bar')
+        .and_call_original
+
+      worker.import(project, client, hash)
+    end
+  end
+end
diff --git a/spec/workers/gitlab/github_import/import_pull_request_worker_spec.rb b/spec/workers/gitlab/github_import/import_pull_request_worker_spec.rb
new file mode 100644
index 00000000000..d49f560af42
--- /dev/null
+++ b/spec/workers/gitlab/github_import/import_pull_request_worker_spec.rb
@@ -0,0 +1,51 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::ImportPullRequestWorker do
+  let(:worker) { described_class.new }
+
+  describe '#import' do
+    it 'imports a pull request' do
+      project = double(:project, path_with_namespace: 'foo/bar')
+      client = double(:client)
+      importer = double(:importer)
+      hash = {
+        'iid' => 42,
+        'title' => 'My Pull Request',
+        'description' => 'This is my pull request',
+        'source_branch' => 'my-feature',
+        'source_branch_sha' => '123abc',
+        'target_branch' => 'master',
+        'target_branch_sha' => '456def',
+        'source_repository_id' => 400,
+        'target_repository_id' => 200,
+        'source_repository_owner' => 'alice',
+        'state' => 'closed',
+        'milestone_number' => 4,
+        'user' => { 'id' => 4, 'login' => 'alice' },
+        'assignee' => { 'id' => 4, 'login' => 'alice' },
+        'created_at' => Time.zone.now.to_s,
+        'updated_at' => Time.zone.now.to_s,
+        'merged_at' => Time.zone.now.to_s
+      }
+
+      expect(Gitlab::GithubImport::Importer::PullRequestImporter)
+        .to receive(:new)
+        .with(
+          an_instance_of(Gitlab::GithubImport::Representation::PullRequest),
+          project,
+          client
+        )
+        .and_return(importer)
+
+      expect(importer)
+        .to receive(:execute)
+
+      expect(worker.counter)
+        .to receive(:increment)
+        .with(project: 'foo/bar')
+        .and_call_original
+
+      worker.import(project, client, hash)
+    end
+  end
+end
diff --git a/spec/workers/gitlab/github_import/refresh_import_jid_worker_spec.rb b/spec/workers/gitlab/github_import/refresh_import_jid_worker_spec.rb
new file mode 100644
index 00000000000..073c6d7a2f5
--- /dev/null
+++ b/spec/workers/gitlab/github_import/refresh_import_jid_worker_spec.rb
@@ -0,0 +1,95 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::RefreshImportJidWorker do
+  let(:worker) { described_class.new }
+
+  describe '.perform_in_the_future' do
+    it 'schedules a job in the future' do
+      expect(described_class)
+        .to receive(:perform_in)
+        .with(1.minute.to_i, 10, '123')
+
+      described_class.perform_in_the_future(10, '123')
+    end
+  end
+
+  describe '#perform' do
+    let(:project) { create(:project, import_jid: '123abc') }
+
+    context 'when the project does not exist' do
+      it 'does nothing' do
+        expect(Gitlab::SidekiqStatus)
+          .not_to receive(:running?)
+
+        worker.perform(-1, '123')
+      end
+    end
+
+    context 'when the job is running' do
+      it 'refreshes the import JID and reschedules itself' do
+        allow(worker)
+          .to receive(:find_project)
+          .with(project.id)
+          .and_return(project)
+
+        expect(Gitlab::SidekiqStatus)
+          .to receive(:running?)
+          .with('123')
+          .and_return(true)
+
+        expect(project)
+          .to receive(:refresh_import_jid_expiration)
+
+        expect(worker.class)
+          .to receive(:perform_in_the_future)
+          .with(project.id, '123')
+
+        worker.perform(project.id, '123')
+      end
+    end
+
+    context 'when the job is no longer running' do
+      it 'returns' do
+        allow(worker)
+          .to receive(:find_project)
+          .with(project.id)
+          .and_return(project)
+
+        expect(Gitlab::SidekiqStatus)
+          .to receive(:running?)
+          .with('123')
+          .and_return(false)
+
+        expect(project)
+          .not_to receive(:refresh_import_jid_expiration)
+
+        worker.perform(project.id, '123')
+      end
+    end
+  end
+
+  describe '#find_project' do
+    it 'returns a Project' do
+      project = create(:project, import_status: 'started')
+
+      expect(worker.find_project(project.id)).to be_an_instance_of(Project)
+    end
+
+    it 'only selects the import JID field' do
+      project = create(:project, import_status: 'started', import_jid: '123abc')
+
+      expect(worker.find_project(project.id).attributes)
+        .to eq({ 'id' => nil, 'import_jid' => '123abc' })
+    end
+
+    it 'returns nil for a project for which the import process failed' do
+      project = create(:project, import_status: 'failed')
+
+      expect(worker.find_project(project.id)).to be_nil
+    end
+
+    it 'returns nil for a non-existing project' do
+      expect(worker.find_project(-1)).to be_nil
+    end
+  end
+end
diff --git a/spec/workers/gitlab/github_import/stage/finish_import_worker_spec.rb b/spec/workers/gitlab/github_import/stage/finish_import_worker_spec.rb
new file mode 100644
index 00000000000..91e0cddb5d8
--- /dev/null
+++ b/spec/workers/gitlab/github_import/stage/finish_import_worker_spec.rb
@@ -0,0 +1,32 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::Stage::FinishImportWorker do
+  let(:project) { create(:project) }
+  let(:worker) { described_class.new }
+
+  describe '#perform' do
+    it 'marks the import as finished' do
+      expect(project).to receive(:after_import)
+      expect(worker).to receive(:report_import_time).with(project)
+
+      worker.import(double(:client), project)
+    end
+  end
+
+  describe '#report_import_time' do
+    it 'reports the total import time' do
+      expect(worker.histogram)
+        .to receive(:observe)
+        .with({ project: project.path_with_namespace }, a_kind_of(Numeric))
+        .and_call_original
+
+      expect(worker.counter)
+        .to receive(:increment)
+        .and_call_original
+
+      expect(worker.logger).to receive(:info).with(an_instance_of(String))
+
+      worker.report_import_time(project)
+    end
+  end
+end
diff --git a/spec/workers/gitlab/github_import/stage/import_base_data_worker_spec.rb b/spec/workers/gitlab/github_import/stage/import_base_data_worker_spec.rb
new file mode 100644
index 00000000000..8c80d660287
--- /dev/null
+++ b/spec/workers/gitlab/github_import/stage/import_base_data_worker_spec.rb
@@ -0,0 +1,30 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::Stage::ImportBaseDataWorker do
+  let(:project) { create(:project) }
+  let(:worker) { described_class.new }
+
+  describe '#import' do
+    it 'imports the base data of a project' do
+      importer = double(:importer)
+      client = double(:client)
+
+      described_class::IMPORTERS.each do |klass|
+        expect(klass)
+          .to receive(:new)
+          .with(project, client)
+          .and_return(importer)
+
+        expect(importer).to receive(:execute)
+      end
+
+      expect(project).to receive(:refresh_import_jid_expiration)
+
+      expect(Gitlab::GithubImport::Stage::ImportPullRequestsWorker)
+        .to receive(:perform_async)
+        .with(project.id)
+
+      worker.import(client, project)
+    end
+  end
+end
diff --git a/spec/workers/gitlab/github_import/stage/import_issues_and_diff_notes_worker_spec.rb b/spec/workers/gitlab/github_import/stage/import_issues_and_diff_notes_worker_spec.rb
new file mode 100644
index 00000000000..ab347f5b75b
--- /dev/null
+++ b/spec/workers/gitlab/github_import/stage/import_issues_and_diff_notes_worker_spec.rb
@@ -0,0 +1,32 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::Stage::ImportIssuesAndDiffNotesWorker do
+  let(:project) { create(:project) }
+  let(:worker) { described_class.new }
+
+  describe '#import' do
+    it 'imports the issues and diff notes' do
+      client = double(:client)
+
+      described_class::IMPORTERS.each do |klass|
+        importer = double(:importer)
+        waiter = Gitlab::JobWaiter.new(2, '123')
+
+        expect(klass)
+          .to receive(:new)
+          .with(project, client)
+          .and_return(importer)
+
+        expect(importer)
+          .to receive(:execute)
+          .and_return(waiter)
+      end
+
+      expect(Gitlab::GithubImport::AdvanceStageWorker)
+        .to receive(:perform_async)
+        .with(project.id, { '123' => 2 }, :notes)
+
+      worker.import(client, project)
+    end
+  end
+end
diff --git a/spec/workers/gitlab/github_import/stage/import_notes_worker_spec.rb b/spec/workers/gitlab/github_import/stage/import_notes_worker_spec.rb
new file mode 100644
index 00000000000..098d2d55386
--- /dev/null
+++ b/spec/workers/gitlab/github_import/stage/import_notes_worker_spec.rb
@@ -0,0 +1,29 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::Stage::ImportNotesWorker do
+  let(:project) { create(:project) }
+  let(:worker) { described_class.new }
+
+  describe '#import' do
+    it 'imports all the notes' do
+      importer = double(:importer)
+      client = double(:client)
+      waiter = Gitlab::JobWaiter.new(2, '123')
+
+      expect(Gitlab::GithubImport::Importer::NotesImporter)
+        .to receive(:new)
+        .with(project, client)
+        .and_return(importer)
+
+      expect(importer)
+        .to receive(:execute)
+        .and_return(waiter)
+
+      expect(Gitlab::GithubImport::AdvanceStageWorker)
+        .to receive(:perform_async)
+        .with(project.id, { '123' => 2 }, :finish)
+
+      worker.import(client, project)
+    end
+  end
+end
diff --git a/spec/workers/gitlab/github_import/stage/import_pull_requests_worker_spec.rb b/spec/workers/gitlab/github_import/stage/import_pull_requests_worker_spec.rb
new file mode 100644
index 00000000000..2fc91a3e80a
--- /dev/null
+++ b/spec/workers/gitlab/github_import/stage/import_pull_requests_worker_spec.rb
@@ -0,0 +1,32 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::Stage::ImportPullRequestsWorker do
+  let(:project) { create(:project) }
+  let(:worker) { described_class.new }
+
+  describe '#import' do
+    it 'imports all the pull requests' do
+      importer = double(:importer)
+      client = double(:client)
+      waiter = Gitlab::JobWaiter.new(2, '123')
+
+      expect(Gitlab::GithubImport::Importer::PullRequestsImporter)
+        .to receive(:new)
+        .with(project, client)
+        .and_return(importer)
+
+      expect(importer)
+        .to receive(:execute)
+        .and_return(waiter)
+
+      expect(project)
+        .to receive(:refresh_import_jid_expiration)
+
+      expect(Gitlab::GithubImport::AdvanceStageWorker)
+        .to receive(:perform_async)
+        .with(project.id, { '123' => 2 }, :issues_and_diff_notes)
+
+      worker.import(client, project)
+    end
+  end
+end
diff --git a/spec/workers/gitlab/github_import/stage/import_repository_worker_spec.rb b/spec/workers/gitlab/github_import/stage/import_repository_worker_spec.rb
new file mode 100644
index 00000000000..adab535ac05
--- /dev/null
+++ b/spec/workers/gitlab/github_import/stage/import_repository_worker_spec.rb
@@ -0,0 +1,49 @@
+require 'spec_helper'
+
+describe Gitlab::GithubImport::Stage::ImportRepositoryWorker do
+  let(:project) { double(:project, id: 4) }
+  let(:worker) { described_class.new }
+
+  describe '#import' do
+    before do
+      expect(Gitlab::GithubImport::RefreshImportJidWorker)
+        .to receive(:perform_in_the_future)
+        .with(project.id, '123')
+
+      expect(worker)
+        .to receive(:jid)
+        .and_return('123')
+    end
+
+    context 'when the import succeeds' do
+      it 'schedules the importing of the base data' do
+        client = double(:client)
+
+        expect_any_instance_of(Gitlab::GithubImport::Importer::RepositoryImporter)
+          .to receive(:execute)
+          .and_return(true)
+
+        expect(Gitlab::GithubImport::Stage::ImportBaseDataWorker)
+          .to receive(:perform_async)
+          .with(project.id)
+
+        worker.import(client, project)
+      end
+    end
+
+    context 'when the import fails' do
+      it 'does not schedule the importing of the base data' do
+        client = double(:client)
+
+        expect_any_instance_of(Gitlab::GithubImport::Importer::RepositoryImporter)
+          .to receive(:execute)
+          .and_return(false)
+
+        expect(Gitlab::GithubImport::Stage::ImportBaseDataWorker)
+          .not_to receive(:perform_async)
+
+        worker.import(client, project)
+      end
+    end
+  end
+end
diff --git a/spec/workers/repository_import_worker_spec.rb b/spec/workers/repository_import_worker_spec.rb
index 5cff5108477..0af537647ad 100644
--- a/spec/workers/repository_import_worker_spec.rb
+++ b/spec/workers/repository_import_worker_spec.rb
@@ -59,5 +59,28 @@ describe RepositoryImportWorker do
         expect(project.reload.import_status).to eq('failed')
       end
     end
+
+    context 'when using an asynchronous importer' do
+      it 'does not mark the import process as finished' do
+        service = double(:service)
+
+        allow(Projects::ImportService)
+          .to receive(:new)
+          .and_return(service)
+
+        allow(service)
+          .to receive(:execute)
+          .and_return(true)
+
+        allow(service)
+          .to receive(:async?)
+          .and_return(true)
+
+        expect_any_instance_of(Project)
+          .not_to receive(:import_finish)
+
+        subject.perform(project.id)
+      end
+    end
   end
 end
diff --git a/spec/workers/update_merge_requests_worker_spec.rb b/spec/workers/update_merge_requests_worker_spec.rb
index 558ff9109ec..0fa19ac84bb 100644
--- a/spec/workers/update_merge_requests_worker_spec.rb
+++ b/spec/workers/update_merge_requests_worker_spec.rb
@@ -23,5 +23,17 @@ describe UpdateMergeRequestsWorker do
 
       perform
     end
+
+    context 'when slow' do
+      before do
+        stub_const("UpdateMergeRequestsWorker::LOG_TIME_THRESHOLD", -1)
+      end
+
+      it 'logs debug info' do
+        expect(Rails.logger).to receive(:info).with(a_string_matching(/\AUpdateMergeRequestsWorker#perform.*project_id=#{project.id},user_id=#{user.id},oldrev=#{oldrev},newrev=#{newrev},ref=#{ref}/))
+
+        perform
+      end
+    end
   end
 end
diff --git a/spec/workers/wait_for_cluster_creation_worker_spec.rb b/spec/workers/wait_for_cluster_creation_worker_spec.rb
index dcd4a3b9aec..0e92b298178 100644
--- a/spec/workers/wait_for_cluster_creation_worker_spec.rb
+++ b/spec/workers/wait_for_cluster_creation_worker_spec.rb
@@ -2,65 +2,32 @@ require 'spec_helper'
 
 describe WaitForClusterCreationWorker do
   describe '#perform' do
-    context 'when cluster exists' do
-      let(:cluster) { create(:gcp_cluster) }
-      let(:operation) { double }
+    context 'when provider type is gcp' do
+      let(:cluster) { create(:cluster, provider_type: :gcp, provider_gcp: provider) }
+      let(:provider) { create(:cluster_provider_gcp, :creating) }
 
-      before do
-        allow(operation).to receive(:status).and_return(status)
-        allow(operation).to receive(:start_time).and_return(1.minute.ago)
-        allow(operation).to receive(:status_message).and_return('error')
-        allow_any_instance_of(Ci::FetchGcpOperationService).to receive(:execute).and_yield(operation)
-      end
-
-      context 'when operation status is RUNNING' do
-        let(:status) { 'RUNNING' }
-
-        it 'reschedules worker' do
-          expect(described_class).to receive(:perform_in)
-
-          described_class.new.perform(cluster.id)
-        end
-
-        context 'when operation timeout' do
-          before do
-            allow(operation).to receive(:start_time).and_return(30.minutes.ago.utc)
-          end
-
-          it 'sets an error message on cluster' do
-            described_class.new.perform(cluster.id)
+      it 'provision a cluster' do
+        expect_any_instance_of(Clusters::Gcp::VerifyProvisionStatusService).to receive(:execute)
 
-            expect(cluster.reload).to be_errored
-          end
-        end
-      end
-
-      context 'when operation status is DONE' do
-        let(:status) { 'DONE' }
-
-        it 'finalizes cluster creation' do
-          expect_any_instance_of(Ci::FinalizeClusterCreationService).to receive(:execute)
-
-          described_class.new.perform(cluster.id)
-        end
+        described_class.new.perform(cluster.id)
       end
+    end
 
-      context 'when operation status is others' do
-        let(:status) { 'others' }
+    context 'when provider type is user' do
+      let(:cluster) { create(:cluster, provider_type: :user) }
 
-        it 'sets an error message on cluster' do
-          described_class.new.perform(cluster.id)
+      it 'does not provision a cluster' do
+        expect_any_instance_of(Clusters::Gcp::VerifyProvisionStatusService).not_to receive(:execute)
 
-          expect(cluster.reload).to be_errored
-        end
+        described_class.new.perform(cluster.id)
       end
     end
 
     context 'when cluster does not exist' do
       it 'does not provision a cluster' do
-        expect_any_instance_of(Ci::FetchGcpOperationService).not_to receive(:execute)
+        expect_any_instance_of(Clusters::Gcp::VerifyProvisionStatusService).not_to receive(:execute)
 
-        described_class.new.perform(1234)
+        described_class.new.perform(123)
       end
     end
   end
diff --git a/vendor/assets/javascripts/latinise.js b/vendor/assets/javascripts/latinise.js
deleted file mode 100644
index da37966b28a..00000000000
--- a/vendor/assets/javascripts/latinise.js
+++ /dev/null
@@ -1,11 +0,0 @@
-// Converting text to basic latin (aka removing accents)
-//
-// Based on: http://semplicewebsites.com/removing-accents-javascript
-//
-var Latinise = {
-  map: {"Á":"A","Ă":"A","Ắ":"A","Ặ":"A","Ằ":"A","Ẳ":"A","Ẵ":"A","Ǎ":"A","Â":"A","Ấ":"A","Ậ":"A","Ầ":"A","Ẩ":"A","Ẫ":"A","Ä":"A","Ǟ":"A","Ȧ":"A","Ǡ":"A","Ạ":"A","Ȁ":"A","À":"A","Ả":"A","Ȃ":"A","Ā":"A","Ą":"A","Å":"A","Ǻ":"A","Ḁ":"A","Ⱥ":"A","Ã":"A","Ꜳ":"AA","Æ":"AE","Ǽ":"AE","Ǣ":"AE","Ꜵ":"AO","Ꜷ":"AU","Ꜹ":"AV","Ꜻ":"AV","Ꜽ":"AY","Ḃ":"B","Ḅ":"B","Ɓ":"B","Ḇ":"B","Ƀ":"B","Ƃ":"B","Ć":"C","Č":"C","Ç":"C","Ḉ":"C","Ĉ":"C","Ċ":"C","Ƈ":"C","Ȼ":"C","Ď":"D","Ḑ":"D","Ḓ":"D","Ḋ":"D","Ḍ":"D","Ɗ":"D","Ḏ":"D","Dz":"D","Dž":"D","Đ":"D","Ƌ":"D","DZ":"DZ","DŽ":"DZ","É":"E","Ĕ":"E","Ě":"E","Ȩ":"E","Ḝ":"E","Ê":"E","Ế":"E","Ệ":"E","Ề":"E","Ể":"E","Ễ":"E","Ḙ":"E","Ë":"E","Ė":"E","Ẹ":"E","Ȅ":"E","È":"E","Ẻ":"E","Ȇ":"E","Ē":"E","Ḗ":"E","Ḕ":"E","Ę":"E","Ɇ":"E","Ẽ":"E","Ḛ":"E","Ꝫ":"ET","Ḟ":"F","Ƒ":"F","Ǵ":"G","Ğ":"G","Ǧ":"G","Ģ":"G","Ĝ":"G","Ġ":"G","Ɠ":"G","Ḡ":"G","Ǥ":"G","Ḫ":"H","Ȟ":"H","Ḩ":"H","Ĥ":"H","Ⱨ":"H","Ḧ":"H","Ḣ":"H","Ḥ":"H","Ħ":"H","Í":"I","Ĭ":"I","Ǐ":"I","Î":"I","Ï":"I","Ḯ":"I","İ":"I","Ị":"I","Ȉ":"I","Ì":"I","Ỉ":"I","Ȋ":"I","Ī":"I","Į":"I","Ɨ":"I","Ĩ":"I","Ḭ":"I","Ꝺ":"D","Ꝼ":"F","Ᵹ":"G","Ꞃ":"R","Ꞅ":"S","Ꞇ":"T","Ꝭ":"IS","Ĵ":"J","Ɉ":"J","Ḱ":"K","Ǩ":"K","Ķ":"K","Ⱪ":"K","Ꝃ":"K","Ḳ":"K","Ƙ":"K","Ḵ":"K","Ꝁ":"K","Ꝅ":"K","Ĺ":"L","Ƚ":"L","Ľ":"L","Ļ":"L","Ḽ":"L","Ḷ":"L","Ḹ":"L","Ⱡ":"L","Ꝉ":"L","Ḻ":"L","Ŀ":"L","Ɫ":"L","Lj":"L","Ł":"L","LJ":"LJ","Ḿ":"M","Ṁ":"M","Ṃ":"M","Ɱ":"M","Ń":"N","Ň":"N","Ņ":"N","Ṋ":"N","Ṅ":"N","Ṇ":"N","Ǹ":"N","Ɲ":"N","Ṉ":"N","Ƞ":"N","Nj":"N","Ñ":"N","NJ":"NJ","Ó":"O","Ŏ":"O","Ǒ":"O","Ô":"O","Ố":"O","Ộ":"O","Ồ":"O","Ổ":"O","Ỗ":"O","Ö":"O","Ȫ":"O","Ȯ":"O","Ȱ":"O","Ọ":"O","Ő":"O","Ȍ":"O","Ò":"O","Ỏ":"O","Ơ":"O","Ớ":"O","Ợ":"O","Ờ":"O","Ở":"O","Ỡ":"O","Ȏ":"O","Ꝋ":"O","Ꝍ":"O","Ō":"O","Ṓ":"O","Ṑ":"O","Ɵ":"O","Ǫ":"O","Ǭ":"O","Ø":"O","Ǿ":"O","Õ":"O","Ṍ":"O","Ṏ":"O","Ȭ":"O","Ƣ":"OI","Ꝏ":"OO","Ɛ":"E","Ɔ":"O","Ȣ":"OU","Ṕ":"P","Ṗ":"P","Ꝓ":"P","Ƥ":"P","Ꝕ":"P","Ᵽ":"P","Ꝑ":"P","Ꝙ":"Q","Ꝗ":"Q","Ŕ":"R","Ř":"R","Ŗ":"R","Ṙ":"R","Ṛ":"R","Ṝ":"R","Ȑ":"R","Ȓ":"R","Ṟ":"R","Ɍ":"R","Ɽ":"R","Ꜿ":"C","Ǝ":"E","Ś":"S","Ṥ":"S","Š":"S","Ṧ":"S","Ş":"S","Ŝ":"S","Ș":"S","Ṡ":"S","Ṣ":"S","Ṩ":"S","ẞ":"SS","Ť":"T","Ţ":"T","Ṱ":"T","Ț":"T","Ⱦ":"T","Ṫ":"T","Ṭ":"T","Ƭ":"T","Ṯ":"T","Ʈ":"T","Ŧ":"T","Ɐ":"A","Ꞁ":"L","Ɯ":"M","Ʌ":"V","Ꜩ":"TZ","Ú":"U","Ŭ":"U","Ǔ":"U","Û":"U","Ṷ":"U","Ü":"U","Ǘ":"U","Ǚ":"U","Ǜ":"U","Ǖ":"U","Ṳ":"U","Ụ":"U","Ű":"U","Ȕ":"U","Ù":"U","Ủ":"U","Ư":"U","Ứ":"U","Ự":"U","Ừ":"U","Ử":"U","Ữ":"U","Ȗ":"U","Ū":"U","Ṻ":"U","Ų":"U","Ů":"U","Ũ":"U","Ṹ":"U","Ṵ":"U","Ꝟ":"V","Ṿ":"V","Ʋ":"V","Ṽ":"V","Ꝡ":"VY","Ẃ":"W","Ŵ":"W","Ẅ":"W","Ẇ":"W","Ẉ":"W","Ẁ":"W","Ⱳ":"W","Ẍ":"X","Ẋ":"X","Ý":"Y","Ŷ":"Y","Ÿ":"Y","Ẏ":"Y","Ỵ":"Y","Ỳ":"Y","Ƴ":"Y","Ỷ":"Y","Ỿ":"Y","Ȳ":"Y","Ɏ":"Y","Ỹ":"Y","Ź":"Z","Ž":"Z","Ẑ":"Z","Ⱬ":"Z","Ż":"Z","Ẓ":"Z","Ȥ":"Z","Ẕ":"Z","Ƶ":"Z","IJ":"IJ","Œ":"OE","ᴀ":"A","ᴁ":"AE","ʙ":"B","ᴃ":"B","ᴄ":"C","ᴅ":"D","ᴇ":"E","ꜰ":"F","ɢ":"G","ʛ":"G","ʜ":"H","ɪ":"I","ʁ":"R","ᴊ":"J","ᴋ":"K","ʟ":"L","ᴌ":"L","ᴍ":"M","ɴ":"N","ᴏ":"O","ɶ":"OE","ᴐ":"O","ᴕ":"OU","ᴘ":"P","ʀ":"R","ᴎ":"N","ᴙ":"R","ꜱ":"S","ᴛ":"T","ⱻ":"E","ᴚ":"R","ᴜ":"U","ᴠ":"V","ᴡ":"W","ʏ":"Y","ᴢ":"Z","á":"a","ă":"a","ắ":"a","ặ":"a","ằ":"a","ẳ":"a","ẵ":"a","ǎ":"a","â":"a","ấ":"a","ậ":"a","ầ":"a","ẩ":"a","ẫ":"a","ä":"a","ǟ":"a","ȧ":"a","ǡ":"a","ạ":"a","ȁ":"a","à":"a","ả":"a","ȃ":"a","ā":"a","ą":"a","ᶏ":"a","ẚ":"a","å":"a","ǻ":"a","ḁ":"a","ⱥ":"a","ã":"a","ꜳ":"aa","æ":"ae","ǽ":"ae","ǣ":"ae","ꜵ":"ao","ꜷ":"au","ꜹ":"av","ꜻ":"av","ꜽ":"ay","ḃ":"b","ḅ":"b","ɓ":"b","ḇ":"b","ᵬ":"b","ᶀ":"b","ƀ":"b","ƃ":"b","ɵ":"o","ć":"c","č":"c","ç":"c","ḉ":"c","ĉ":"c","ɕ":"c","ċ":"c","ƈ":"c","ȼ":"c","ď":"d","ḑ":"d","ḓ":"d","ȡ":"d","ḋ":"d","ḍ":"d","ɗ":"d","ᶑ":"d","ḏ":"d","ᵭ":"d","ᶁ":"d","đ":"d","ɖ":"d","ƌ":"d","ı":"i","ȷ":"j","ɟ":"j","ʄ":"j","dz":"dz","dž":"dz","é":"e","ĕ":"e","ě":"e","ȩ":"e","ḝ":"e","ê":"e","ế":"e","ệ":"e","ề":"e","ể":"e","ễ":"e","ḙ":"e","ë":"e","ė":"e","ẹ":"e","ȅ":"e","è":"e","ẻ":"e","ȇ":"e","ē":"e","ḗ":"e","ḕ":"e","ⱸ":"e","ę":"e","ᶒ":"e","ɇ":"e","ẽ":"e","ḛ":"e","ꝫ":"et","ḟ":"f","ƒ":"f","ᵮ":"f","ᶂ":"f","ǵ":"g","ğ":"g","ǧ":"g","ģ":"g","ĝ":"g","ġ":"g","ɠ":"g","ḡ":"g","ᶃ":"g","ǥ":"g","ḫ":"h","ȟ":"h","ḩ":"h","ĥ":"h","ⱨ":"h","ḧ":"h","ḣ":"h","ḥ":"h","ɦ":"h","ẖ":"h","ħ":"h","ƕ":"hv","í":"i","ĭ":"i","ǐ":"i","î":"i","ï":"i","ḯ":"i","ị":"i","ȉ":"i","ì":"i","ỉ":"i","ȋ":"i","ī":"i","į":"i","ᶖ":"i","ɨ":"i","ĩ":"i","ḭ":"i","ꝺ":"d","ꝼ":"f","ᵹ":"g","ꞃ":"r","ꞅ":"s","ꞇ":"t","ꝭ":"is","ǰ":"j","ĵ":"j","ʝ":"j","ɉ":"j","ḱ":"k","ǩ":"k","ķ":"k","ⱪ":"k","ꝃ":"k","ḳ":"k","ƙ":"k","ḵ":"k","ᶄ":"k","ꝁ":"k","ꝅ":"k","ĺ":"l","ƚ":"l","ɬ":"l","ľ":"l","ļ":"l","ḽ":"l","ȴ":"l","ḷ":"l","ḹ":"l","ⱡ":"l","ꝉ":"l","ḻ":"l","ŀ":"l","ɫ":"l","ᶅ":"l","ɭ":"l","ł":"l","lj":"lj","ſ":"s","ẜ":"s","ẛ":"s","ẝ":"s","ḿ":"m","ṁ":"m","ṃ":"m","ɱ":"m","ᵯ":"m","ᶆ":"m","ń":"n","ň":"n","ņ":"n","ṋ":"n","ȵ":"n","ṅ":"n","ṇ":"n","ǹ":"n","ɲ":"n","ṉ":"n","ƞ":"n","ᵰ":"n","ᶇ":"n","ɳ":"n","ñ":"n","nj":"nj","ó":"o","ŏ":"o","ǒ":"o","ô":"o","ố":"o","ộ":"o","ồ":"o","ổ":"o","ỗ":"o","ö":"o","ȫ":"o","ȯ":"o","ȱ":"o","ọ":"o","ő":"o","ȍ":"o","ò":"o","ỏ":"o","ơ":"o","ớ":"o","ợ":"o","ờ":"o","ở":"o","ỡ":"o","ȏ":"o","ꝋ":"o","ꝍ":"o","ⱺ":"o","ō":"o","ṓ":"o","ṑ":"o","ǫ":"o","ǭ":"o","ø":"o","ǿ":"o","õ":"o","ṍ":"o","ṏ":"o","ȭ":"o","ƣ":"oi","ꝏ":"oo","ɛ":"e","ᶓ":"e","ɔ":"o","ᶗ":"o","ȣ":"ou","ṕ":"p","ṗ":"p","ꝓ":"p","ƥ":"p","ᵱ":"p","ᶈ":"p","ꝕ":"p","ᵽ":"p","ꝑ":"p","ꝙ":"q","ʠ":"q","ɋ":"q","ꝗ":"q","ŕ":"r","ř":"r","ŗ":"r","ṙ":"r","ṛ":"r","ṝ":"r","ȑ":"r","ɾ":"r","ᵳ":"r","ȓ":"r","ṟ":"r","ɼ":"r","ᵲ":"r","ᶉ":"r","ɍ":"r","ɽ":"r","ↄ":"c","ꜿ":"c","ɘ":"e","ɿ":"r","ś":"s","ṥ":"s","š":"s","ṧ":"s","ş":"s","ŝ":"s","ș":"s","ṡ":"s","ṣ":"s","ṩ":"s","ʂ":"s","ᵴ":"s","ᶊ":"s","ȿ":"s","ɡ":"g","ß":"ss","ᴑ":"o","ᴓ":"o","ᴝ":"u","ť":"t","ţ":"t","ṱ":"t","ț":"t","ȶ":"t","ẗ":"t","ⱦ":"t","ṫ":"t","ṭ":"t","ƭ":"t","ṯ":"t","ᵵ":"t","ƫ":"t","ʈ":"t","ŧ":"t","ᵺ":"th","ɐ":"a","ᴂ":"ae","ǝ":"e","ᵷ":"g","ɥ":"h","ʮ":"h","ʯ":"h","ᴉ":"i","ʞ":"k","ꞁ":"l","ɯ":"m","ɰ":"m","ᴔ":"oe","ɹ":"r","ɻ":"r","ɺ":"r","ⱹ":"r","ʇ":"t","ʌ":"v","ʍ":"w","ʎ":"y","ꜩ":"tz","ú":"u","ŭ":"u","ǔ":"u","û":"u","ṷ":"u","ü":"u","ǘ":"u","ǚ":"u","ǜ":"u","ǖ":"u","ṳ":"u","ụ":"u","ű":"u","ȕ":"u","ù":"u","ủ":"u","ư":"u","ứ":"u","ự":"u","ừ":"u","ử":"u","ữ":"u","ȗ":"u","ū":"u","ṻ":"u","ų":"u","ᶙ":"u","ů":"u","ũ":"u","ṹ":"u","ṵ":"u","ᵫ":"ue","ꝸ":"um","ⱴ":"v","ꝟ":"v","ṿ":"v","ʋ":"v","ᶌ":"v","ⱱ":"v","ṽ":"v","ꝡ":"vy","ẃ":"w","ŵ":"w","ẅ":"w","ẇ":"w","ẉ":"w","ẁ":"w","ⱳ":"w","ẘ":"w","ẍ":"x","ẋ":"x","ᶍ":"x","ý":"y","ŷ":"y","ÿ":"y","ẏ":"y","ỵ":"y","ỳ":"y","ƴ":"y","ỷ":"y","ỿ":"y","ȳ":"y","ẙ":"y","ɏ":"y","ỹ":"y","ź":"z","ž":"z","ẑ":"z","ʑ":"z","ⱬ":"z","ż":"z","ẓ":"z","ȥ":"z","ẕ":"z","ᵶ":"z","ᶎ":"z","ʐ":"z","ƶ":"z","ɀ":"z","ff":"ff","ffi":"ffi","ffl":"ffl","fi":"fi","fl":"fl","ij":"ij","œ":"oe","st":"st","ₐ":"a","ₑ":"e","ᵢ":"i","ⱼ":"j","ₒ":"o","ᵣ":"r","ᵤ":"u","ᵥ":"v","ₓ":"x"}
-};
-
-String.prototype.latinise = function() {
-  return this.replace(/[^A-Za-z0-9]/g, function(x) { return Latinise.map[x] || x; });
-};
diff --git a/vendor/gitignore/Android.gitignore b/vendor/gitignore/Android.gitignore
index c79ba5080a3..addf405e4f5 100644
--- a/vendor/gitignore/Android.gitignore
+++ b/vendor/gitignore/Android.gitignore
@@ -32,7 +32,7 @@ proguard/
 # Android Studio captures folder
 captures/
 
-# Intellij
+# IntelliJ
 *.iml
 .idea/workspace.xml
 .idea/tasks.xml
diff --git a/vendor/gitignore/Composer.gitignore b/vendor/gitignore/Composer.gitignore
index c4222678424..a67d42b32f8 100644
--- a/vendor/gitignore/Composer.gitignore
+++ b/vendor/gitignore/Composer.gitignore
@@ -1,6 +1,6 @@
 composer.phar
 /vendor/
 
-# Commit your application's lock file http://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file
+# Commit your application's lock file https://getcomposer.org/doc/01-basic-usage.md#commit-your-composer-lock-file-to-version-control
 # You may choose to ignore a library lock file http://getcomposer.org/doc/02-libraries.md#lock-file
 # composer.lock
diff --git a/vendor/gitignore/Global/Windows.gitignore b/vendor/gitignore/Global/Windows.gitignore
index dff26a9ab70..846a1db836c 100644
--- a/vendor/gitignore/Global/Windows.gitignore
+++ b/vendor/gitignore/Global/Windows.gitignore
@@ -7,7 +7,7 @@ ehthumbs_vista.db
 *.stackdump
 
 # Folder config file
-Desktop.ini
+[Dd]esktop.ini
 
 # Recycle Bin used on file shares
 $RECYCLE.BIN/
diff --git a/vendor/gitignore/Perl.gitignore b/vendor/gitignore/Perl.gitignore
index 9bf1537f6ae..ecf66f84291 100644
--- a/vendor/gitignore/Perl.gitignore
+++ b/vendor/gitignore/Perl.gitignore
@@ -24,7 +24,7 @@ Build.bat
 # Module::Install
 inc/
 
-# ExtUitls::MakeMaker
+# ExtUtils::MakeMaker
 /blib/
 /_eumm/
 /*.gz
diff --git a/vendor/gitignore/Terraform.gitignore b/vendor/gitignore/Terraform.gitignore
index 9b5aebb1b35..1fef4ab91e1 100644
--- a/vendor/gitignore/Terraform.gitignore
+++ b/vendor/gitignore/Terraform.gitignore
@@ -1,10 +1,9 @@
-# Compiled files
-*.tfstate
-*.tfstate.*.backup
-*.tfstate.backup
+#  Local .terraform directories
+**/.terraform/*
 
-# Module directory
-.terraform/
+# .tfstate files
+*.tfstate
+*.tfstate.*
 
-# Variable values for development
-terraform.tfvars
+# .tfvars files
+*.tfvars
diff --git a/vendor/gitignore/VisualStudio.gitignore b/vendor/gitignore/VisualStudio.gitignore
index 0867ec5a7ee..509668db67a 100644
--- a/vendor/gitignore/VisualStudio.gitignore
+++ b/vendor/gitignore/VisualStudio.gitignore
@@ -171,11 +171,11 @@ PublishScripts/
 # NuGet Packages
 *.nupkg
 # The packages folder can be ignored because of Package Restore
-**/packages/*
+**/[Pp]ackages/*
 # except build/, which is used as an MSBuild target.
-!**/packages/build/
+!**/[Pp]ackages/build/
 # Uncomment if necessary however generally it will be regenerated when needed
-#!**/packages/repositories.config
+#!**/[Pp]ackages/repositories.config
 # NuGet v3's project.json files produces more ignorable files
 *.nuget.props
 *.nuget.targets
diff --git a/vendor/gitlab-ci-yml/Auto-DevOps.gitlab-ci.yml b/vendor/gitlab-ci-yml/Auto-DevOps.gitlab-ci.yml
index c93e6567baf..88261502d7f 100644
--- a/vendor/gitlab-ci-yml/Auto-DevOps.gitlab-ci.yml
+++ b/vendor/gitlab-ci-yml/Auto-DevOps.gitlab-ci.yml
@@ -335,7 +335,9 @@ production:
 
   function check_kube_domain() {
     if [ -z ${AUTO_DEVOPS_DOMAIN+x} ]; then
-      echo "In order to deploy, AUTO_DEVOPS_DOMAIN must be set as a variable at the group or project level, or manually added in .gitlab-cy.yml"
+      echo "In order to deploy or use Review Apps, AUTO_DEVOPS_DOMAIN variable must be set"
+      echo "You can do it in Auto DevOps project settings or defining a secret variable at group or project level"
+      echo "You can also manually add it in .gitlab-ci.yml"
       false
     else
       true
diff --git a/vendor/gitlab-ci-yml/Crystal.gitlab-ci.yml b/vendor/gitlab-ci-yml/Crystal.gitlab-ci.yml
index 02cfab3a5b2..36386a19fdc 100644
--- a/vendor/gitlab-ci-yml/Crystal.gitlab-ci.yml
+++ b/vendor/gitlab-ci-yml/Crystal.gitlab-ci.yml
@@ -16,7 +16,7 @@ image: "crystallang/crystal:latest"
 # Cache shards in between builds
 cache:
   paths:
-    - libs
+    - lib
 
 # This is a basic example for a shard or script which doesn't use
 # services such as redis or postgres
diff --git a/vendor/gitlab-ci-yml/OpenShift.gitlab-ci.yml b/vendor/gitlab-ci-yml/OpenShift.gitlab-ci.yml
index 636cb0a9a99..290b9997084 100644
--- a/vendor/gitlab-ci-yml/OpenShift.gitlab-ci.yml
+++ b/vendor/gitlab-ci-yml/OpenShift.gitlab-ci.yml
@@ -31,14 +31,14 @@ test2:
     - oc project "$CI_PROJECT_NAME-$CI_PROJECT_ID" 2> /dev/null || oc new-project "$CI_PROJECT_NAME-$CI_PROJECT_ID"
   script:
     - "oc get services $APP 2> /dev/null || oc new-app . --name=$APP --strategy=docker"
-    - "oc start-build $APP --from-dir=. --follow || sleep 3s || oc start-build $APP --from-dir=. --follow"
+    - "oc start-build $APP --from-dir=. --follow || sleep 3s && oc start-build $APP --from-dir=. --follow"
     - "oc get routes $APP 2> /dev/null || oc expose service $APP --hostname=$APP_HOST"
 
 review:
   <<: *deploy
   stage: review
   variables:
-    APP: $CI_COMMIT_REF_NAME
+    APP: review-$CI_COMMIT_REF_NAME
     APP_HOST: $CI_PROJECT_NAME-$CI_ENVIRONMENT_SLUG.$OPENSHIFT_DOMAIN
   environment:
     name: review/$CI_COMMIT_REF_NAME
@@ -56,7 +56,7 @@ stop-review:
     - oc delete all -l "app=$APP"
   when: manual
   variables:
-    APP: $CI_COMMIT_REF_NAME
+    APP: review-$CI_COMMIT_REF_NAME
     GIT_STRATEGY: none
   environment:
     name: review/$CI_COMMIT_REF_NAME
diff --git a/vendor/gitlab-ci-yml/Rust.gitlab-ci.yml b/vendor/gitlab-ci-yml/Rust.gitlab-ci.yml
index 7810121c350..6573eceaa59 100644
--- a/vendor/gitlab-ci-yml/Rust.gitlab-ci.yml
+++ b/vendor/gitlab-ci-yml/Rust.gitlab-ci.yml
@@ -1,6 +1,6 @@
-# Unofficial language image. Look for the different tagged releases at:
-# https://hub.docker.com/r/scorpil/rust/tags/
-image: "scorpil/rust:stable"
+# Official language image. Look for the different tagged releases at:
+# https://hub.docker.com/r/library/rust/tags/
+image: "rust:latest"
 
 # Optional: Pick zero or more services to be used on all builds.
 # Only needed when using a docker container to run your tests in.
diff --git a/vendor/gitlab-ci-yml/dotNET.gitlab-ci.yml b/vendor/gitlab-ci-yml/dotNET.gitlab-ci.yml
new file mode 100644
index 00000000000..fc3d4ecdbba
--- /dev/null
+++ b/vendor/gitlab-ci-yml/dotNET.gitlab-ci.yml
@@ -0,0 +1,86 @@
+# The following script will work for any project that can be built from command line by msbuild
+# It uses powershell shell executor, so you need to add the following line to your config.toml file
+# (located in gitlab-runner.exe directory):
+#   shell = "powershell"
+#
+# The script is composed of 3 stages: build, test and deploy.  
+#
+# The build stage restores NuGet packages and uses msbuild to build the exe and msi
+# One major issue you'll find is that you can't build msi projects from command line
+# if you use vdproj.  There are workarounds building msi via devenv, but they rarely work
+# The best solution is migrating your vdproj projects to WiX, as it can be build directly 
+# by msbuild.
+#
+# The test stage runs nunit from command line against Test project inside your solution
+# It also saves the resulting TestResult.xml file
+#
+# The deploy stage copies the exe and msi from build stage to a network drive
+# You need to have the network drive mapped as Local System user for gitlab-runner service to see it
+# The best way to persist the mapping is via a scheduled task (see: https://stackoverflow.com/a/7867064/1288473),
+# running the following batch command: net use P: \\x.x.x.x\Projects /u:your_user your_pass /persistent:yes
+
+
+# place project specific paths in variables to make the rest of the script more generic
+variables:
+  EXE_RELEASE_FOLDER: 'YourApp\bin\Release'
+  MSI_RELEASE_FOLDER: 'Setup\bin\Release'
+  TEST_FOLDER: 'Tests\bin\Release'
+  DEPLOY_FOLDER: 'P:\Projects\YourApp\Builds'
+  
+  NUGET_PATH: 'C:\NuGet\nuget.exe'
+  MSBUILD_PATH: 'C:\Program Files (x86)\MSBuild\14.0\Bin\msbuild.exe'
+  NUNIT_PATH: 'C:\Program Files (x86)\NUnit.org\nunit-console\nunit3-console.exe'
+
+stages:
+  - build
+  - test
+  - deploy
+
+build_job:
+  stage: build
+  only:
+    - tags # the build process will only be started by git tag commits
+  script:
+    - '& "$env:NUGET_PATH" restore' # restore Nuget dependencies
+    - '& "$env:MSBUILD_PATH" /p:Configuration=Release' # build the project
+  artifacts:
+    expire_in: 1 week # save gitlab server space, we copy the files we need to deploy folder later on
+    paths:
+      - '$env:EXE_RELEASE_FOLDER\YourApp.exe' # saving exe to copy to deploy folder
+      - '$env:MSI_RELEASE_FOLDER\YourApp Setup.msi' # saving msi to copy to deploy folder
+      - '$env:TEST_FOLDER\' # saving entire Test project so NUnit can run tests 
+
+test_job:
+  stage: test
+  only:
+    - tags
+  script:
+    - '& "$env:NUNIT_PATH" ".\$env:TEST_FOLDER\Tests.dll"' # running NUnit tests
+  artifacts:
+    expire_in: 1 week # save gitlab server space, we copy the files we need to deploy folder later on
+    paths:
+      - '.\TestResult.xml' # saving NUnit results to copy to deploy folder
+  dependencies:
+    - build_job
+
+deploy_job:
+  stage: deploy
+  only:
+    - tags
+  script:
+    # Compose a folder for each release based on commit tag.
+    # Assuming your tag is Rev1.0.0.1, and your last commit message is 'First commit'
+    # the artifact files will be copied to:
+    # P:\Projects\YourApp\Builds\Rev1.0.0.1 - First commit\
+    - '$commitSubject = git log -1 --pretty=%s'
+    - '$deployFolder = $($env:DEPLOY_FOLDER) + "\" + $($env:CI_BUILD_TAG) + " - " + $commitSubject + "\"'
+
+    # xcopy takes care of recursively creating required folders
+    - 'xcopy /y ".\$env:EXE_RELEASE_FOLDER\YourApp.exe" "$deployFolder"'
+    - 'xcopy /y ".\$env:MSI_RELEASE_FOLDER\YourApp Setup.msi" "$deployFolder"'
+    - 'xcopy /y ".\TestResult.xml" "$deployFolder"'
+
+  dependencies:
+    - build_job
+    - test_job
+  
\ No newline at end of file
diff --git a/vendor/licenses.csv b/vendor/licenses.csv
index 9f78059986d..6f6ca5f8b32 100644
--- a/vendor/licenses.csv
+++ b/vendor/licenses.csv
@@ -1,7 +1,11 @@
+"","","MIT,ISC,Apache 2.0,New BSD,Simplified BSD"
 RedCloth,4.3.2,MIT
 abbrev,1.0.9,ISC
+abbrev,1.1.0,ISC
 accepts,1.3.3,MIT
 ace-rails-ap,4.1.2,MIT
+acorn,3.3.0,MIT
+acorn,4.0.13,MIT
 acorn,5.1.1,MIT
 acorn-dynamic-import,2.0.2,MIT
 acorn-jsx,3.0.1,MIT
@@ -15,7 +19,9 @@ activesupport,4.2.8,MIT
 acts-as-taggable-on,4.0.0,MIT
 addressable,2.5.2,Apache 2.0
 after,0.8.2,MIT
+ajv,4.11.8,MIT
 ajv,5.2.2,MIT
+ajv-keywords,1.5.1,MIT
 ajv-keywords,2.1.0,MIT
 akismet,2.0.0,MIT
 align-text,0.1.4,MIT
@@ -24,10 +30,14 @@ alphanum-sort,1.0.2,MIT
 amdefine,1.0.1,BSD-3-Clause OR MIT
 ansi-escapes,1.4.0,MIT
 ansi-html,0.0.5,"Apache, Version 2.0"
+ansi-html,0.0.7,Apache 2.0
 ansi-regex,2.1.1,MIT
 ansi-styles,2.2.1,MIT
+ansi-styles,3.2.0,MIT
 anymatch,1.3.2,ISC
 append-transform,0.4.0,MIT
+aproba,1.1.1,ISC
+are-we-there-yet,1.1.4,ISC
 arel,6.0.4,MIT
 argparse,1.0.9,MIT
 arr-diff,2.0.0,MIT
@@ -35,6 +45,7 @@ arr-flatten,1.0.1,MIT
 array-find,1.0.0,MIT
 array-find-index,1.0.2,MIT
 array-flatten,1.1.1,MIT
+array-flatten,2.1.1,MIT
 array-slice,0.2.3,MIT
 array-union,1.0.2,MIT
 array-uniq,1.0.3,MIT
@@ -44,15 +55,24 @@ arrify,1.0.1,MIT
 asana,0.6.0,MIT
 asciidoctor,1.5.3,MIT
 asciidoctor-plantuml,0.0.7,MIT
+asn1,0.2.3,MIT
 asn1.js,4.9.1,MIT
 assert,1.4.1,MIT
+assert-plus,0.2.0,MIT
+assert-plus,1.0.0,MIT
+async,0.9.2,MIT
+async,1.5.2,MIT
 async,2.4.1,MIT
 async-each,1.0.1,MIT
+asynckit,0.4.0,MIT
 atomic,1.1.99,Apache 2.0
 attr_encrypted,3.0.3,MIT
 attr_required,1.0.0,MIT
 autoprefixer,6.7.7,MIT
 autoprefixer-rails,6.2.3,MIT
+autosize,4.0.0,MIT
+aws-sign2,0.6.0,Apache 2.0
+aws4,1.6.0,MIT
 axiom-types,0.1.1,MIT
 axios,0.16.2,MIT
 babel-code-frame,6.22.0,MIT
@@ -130,6 +150,7 @@ babel-types,6.23.0,MIT
 babosa,1.0.2,MIT
 babylon,6.16.1,MIT
 backo2,1.0.2,MIT
+balanced-match,0.4.2,MIT
 balanced-match,1.0.0,MIT
 base32,0.3.2,MIT
 base64-arraybuffer,0.1.5,MIT
@@ -137,19 +158,25 @@ base64-js,1.2.0,MIT
 base64id,1.0.0,MIT
 batch,0.6.1,MIT
 bcrypt,3.1.11,MIT
+bcrypt-pbkdf,1.0.1,New BSD
 bcrypt_pbkdf,1.0.0,MIT
 better-assert,1.0.2,MIT
 big.js,3.1.3,MIT
 binary-extensions,1.10.0,MIT
 bindata,2.4.1,ruby
 blob,0.0.4,unknown
+block-stream,0.0.9,ISC
 bluebird,2.11.0,MIT
+bluebird,3.5.0,MIT
 bn.js,4.11.6,MIT
 body-parser,1.17.2,MIT
 bonjour,3.5.0,MIT
+boom,2.10.1,New BSD
 bootstrap-sass,3.3.6,MIT
 bootstrap_form,2.7.0,MIT
+brace-expansion,1.1.7,MIT
 brace-expansion,1.1.8,MIT
+braces,0.1.5,MIT
 braces,1.8.5,MIT
 brorand,1.0.7,MIT
 browser,2.2.0,MIT
@@ -168,17 +195,23 @@ builder,3.2.3,MIT
 builtin-modules,1.1.1,MIT
 builtin-status-codes,3.0.0,MIT
 bytes,2.4.0,MIT
+bytes,2.5.0,MIT
 caller-path,0.1.0,MIT
 callsite,1.0.0,unknown
 callsites,0.2.0,MIT
+camelcase,1.2.1,MIT
+camelcase,2.1.1,MIT
+camelcase,3.0.0,MIT
 camelcase,4.1.0,MIT
 camelcase-keys,2.1.0,MIT
 caniuse-api,1.6.1,MIT
 caniuse-db,1.0.30000649,CC-BY-4.0
-carrierwave,1.1.0,MIT
+carrierwave,1.2.1,MIT
+caseless,0.12.0,Apache 2.0
 cause,0.1,MIT
 center-align,0.1.3,MIT
 chalk,1.1.3,MIT
+chalk,2.3.0,MIT
 charlock_holmes,0.7.5,MIT
 chokidar,1.7.0,MIT
 chronic,0.10.2,MIT
@@ -191,6 +224,7 @@ clap,1.1.3,MIT
 cli-cursor,1.0.2,MIT
 cli-width,2.1.0,ISC
 clipboard,1.6.1,MIT
+cliui,2.1.0,ISC
 cliui,3.2.0,ISC
 clone,1.0.2,MIT
 co,4.6.0,MIT
@@ -204,9 +238,11 @@ color-string,0.3.0,MIT
 colormin,1.1.2,MIT
 colors,1.1.2,MIT
 combine-lists,1.0.1,MIT
+combined-stream,1.0.5,MIT
 commander,2.9.0,MIT
 commondir,1.0.1,MIT
 component-bind,1.0.0,unknown
+component-emitter,1.1.2,unknown
 component-emitter,1.2.1,MIT
 component-inherit,0.0.3,unknown
 compressible,2.0.11,MIT
@@ -220,7 +256,8 @@ configstore,1.4.0,Simplified BSD
 connect,3.6.3,MIT
 connect-history-api-fallback,1.3.0,MIT
 connection_pool,2.2.1,MIT
-console-browserify,1.1.0,[Circular]
+console-browserify,1.1.0,MIT
+console-control-strings,1.1.0,ISC
 consolidate,0.14.5,MIT
 constants-browserify,1.0.0,MIT
 contains-path,0.1.0,MIT
@@ -230,6 +267,7 @@ convert-source-map,1.3.0,MIT
 cookie,0.3.1,MIT
 cookie-signature,1.0.6,MIT
 copy-webpack-plugin,4.0.1,MIT
+core-js,2.3.0,MIT
 core-js,2.4.1,MIT
 core-util-is,1.0.2,MIT
 cosmiconfig,2.1.1,MIT
@@ -240,9 +278,11 @@ create-hmac,1.1.4,MIT
 creole,0.5.0,ruby
 cropper,2.3.0,MIT
 cross-spawn,5.1.0,MIT
+cryptiles,2.0.5,New BSD
 crypto-browserify,3.11.0,MIT
 css-color-names,0.0.4,MIT
 css-loader,0.28.0,MIT
+css-selector-tokenizer,0.6.0,MIT
 css-selector-tokenizer,0.7.0,MIT
 css_parser,1.5.0,MIT
 cssesc,0.1.0,MIT
@@ -250,11 +290,16 @@ cssnano,3.10.0,MIT
 csso,2.3.2,MIT
 currently-unhandled,0.4.1,MIT
 custom-event,1.0.1,MIT
+d,0.1.1,MIT
 d,1.0.0,MIT
 d3,3.5.11,New BSD
 d3_rails,3.5.11,MIT
+dashdash,1.14.1,MIT
 date-now,0.1.4,MIT
 de-indent,1.0.2,MIT
+debug,2.2.0,MIT
+debug,2.3.3,MIT
+debug,2.6.7,MIT
 debug,2.6.8,MIT
 debugger-ruby_core_source,1.3.8,MIT
 decamelize,1.2.0,MIT
@@ -269,7 +314,11 @@ default-require-extensions,1.0.0,MIT
 default_value_for,3.0.2,MIT
 defined,1.0.0,MIT
 del,2.2.2,MIT
+del,3.0.0,MIT
+delayed-stream,1.0.0,MIT
 delegate,3.1.2,MIT
+delegates,1.0.0,MIT
+depd,1.1.0,MIT
 depd,1.1.1,MIT
 des.js,1.0.0,MIT
 descendants_tracker,0.0.4,MIT
@@ -285,12 +334,14 @@ diffy,3.1.0,MIT
 dns-equal,1.0.0,MIT
 dns-packet,1.2.2,MIT
 dns-txt,2.0.2,MIT
+doctrine,1.5.0,BSD
 doctrine,2.0.0,Apache 2.0
 document-register-element,1.3.0,MIT
 dom-serialize,2.2.1,MIT
 dom-serializer,0.1.0,MIT
 domain-browser,1.1.7,MIT
 domain_name,0.5.20161021,"Simplified BSD,New BSD,Mozilla Public License 2.0"
+domelementtype,1.1.3,unknown
 domelementtype,1.3.0,unknown
 domhandler,2.3.0,unknown
 domutils,1.5.1,unknown
@@ -298,9 +349,10 @@ doorkeeper,4.2.6,MIT
 doorkeeper-openid_connect,1.2.0,MIT
 dropzone,4.2.0,MIT
 dropzonejs-rails,0.7.2,MIT
-duplexer,0.1.1,[Circular]
+duplexer,0.1.1,MIT
 duplexer3,0.1.4,New BSD
 duplexify,3.5.1,MIT
+ecc-jsbn,0.1.1,MIT
 editorconfig,0.13.2,MIT
 ee-first,1.1.1,MIT
 ejs,2.5.6,Apache 2.0
@@ -315,6 +367,7 @@ end-of-stream,1.4.0,MIT
 engine.io,1.8.3,MIT
 engine.io-client,1.8.3,MIT
 engine.io-parser,1.3.2,MIT
+enhanced-resolve,0.9.1,MIT
 enhanced-resolve,3.4.1,MIT
 ent,2.2.0,MIT
 entities,1.1.1,BSD-like
@@ -346,9 +399,12 @@ eslint-plugin-jasmine,2.2.0,MIT
 eslint-plugin-promise,3.5.0,ISC
 espree,3.5.0,Simplified BSD
 esprima,2.7.3,Simplified BSD
+esprima,4.0.0,Simplified BSD
 esquery,1.0.0,BSD
 esrecurse,4.1.0,Simplified BSD
+estraverse,1.9.3,BSD
 estraverse,4.1.1,Simplified BSD
+estraverse,4.2.0,Simplified BSD
 esutils,2.0.2,BSD
 et-orbi,1.0.3,MIT
 etag,1.8.0,MIT
@@ -365,12 +421,14 @@ execjs,2.6.0,MIT
 exit-hook,1.1.1,MIT
 expand-braces,0.1.2,MIT
 expand-brackets,0.1.5,MIT
+expand-range,0.1.1,MIT
 expand-range,1.8.2,MIT
 exports-loader,0.6.4,MIT
 express,4.15.4,MIT
 expression_parser,0.9.0,MIT
 extend,3.0.1,MIT
 extglob,0.3.2,MIT
+extsprintf,1.0.2,MIT
 faraday,0.12.2,MIT
 faraday_middleware,0.11.0.1,MIT
 faraday_middleware-multi_json,0.0.6,MIT
@@ -378,6 +436,8 @@ fast-deep-equal,1.0.0,MIT
 fast-levenshtein,2.0.6,MIT
 fast_gettext,1.4.0,"MIT,ruby"
 fastparse,1.1.1,MIT
+faye-websocket,0.10.0,MIT
+faye-websocket,0.11.1,MIT
 faye-websocket,0.7.3,MIT
 ffi,1.9.18,New BSD
 figures,1.7.0,MIT
@@ -386,17 +446,19 @@ file-loader,0.11.1,MIT
 filename-regex,2.0.0,MIT
 fileset,2.0.3,MIT
 filesize,3.3.0,New BSD
+filesize,3.5.10,New BSD
 fill-range,2.2.3,MIT
 finalhandler,1.0.4,MIT
 find-cache-dir,1.0.0,MIT
 find-root,0.1.2,MIT
+find-up,1.1.2,MIT
 find-up,2.1.0,MIT
 flat-cache,1.2.2,MIT
 flatten,1.0.2,MIT
 flipper,0.10.2,MIT
 flipper-active_record,0.10.2,MIT
 flowdock,0.7.1,MIT
-fog-aliyun,0.1.0,MIT
+fog-aliyun,0.2.0,MIT
 fog-aws,1.4.0,MIT
 fog-core,1.44.3,MIT
 fog-google,0.5.3,MIT
@@ -409,6 +471,8 @@ follow-redirects,1.2.3,MIT
 font-awesome-rails,4.7.0.1,"MIT,SIL Open Font License"
 for-in,0.1.6,MIT
 for-own,0.1.4,MIT
+forever-agent,0.6.1,Apache 2.0
+form-data,2.1.4,MIT
 formatador,0.2.5,MIT
 forwarded,0.1.0,MIT
 fresh,0.5.0,MIT
@@ -416,8 +480,12 @@ from,0.1.7,MIT
 fs-access,1.0.1,MIT
 fs-extra,0.26.7,MIT
 fs.realpath,1.0.0,ISC
-fsevents,,unknown
+fsevents,1.1.2,MIT
+fstream,1.0.11,ISC
+fstream-ignore,1.0.5,ISC
 function-bind,1.1.0,MIT
+fuzzaldrin-plus,0.5.0,MIT
+gauge,2.7.4,ISC
 gemnasium-gitlab-service,0.2.6,MIT
 gemojione,3.3.0,MIT
 generate-function,2.0.0,MIT
@@ -426,30 +494,37 @@ get-caller-file,1.0.2,ISC
 get-stdin,4.0.1,MIT
 get-stream,3.0.0,MIT
 get_process_mem,0.2.0,MIT
+getpass,0.1.7,MIT
 gettext_i18n_rails,1.8.0,MIT
 gettext_i18n_rails_js,1.2.0,MIT
-gitaly-proto,0.41.0,MIT
+gitaly-proto,0.51.0,MIT
 github-linguist,4.7.6,MIT
 github-markup,1.6.1,MIT
 gitlab-flowdock-git-hook,1.0.1,MIT
 gitlab-grit,2.8.2,MIT
-gitlab-markup,1.6.2,MIT
+gitlab-markup,1.6.3,MIT
 gitlab-svgs,1.0.4,unknown
 gitlab_omniauth-ldap,2.0.4,MIT
+glob,5.0.15,ISC
 glob,6.0.4,ISC
+glob,7.1.1,ISC
+glob,7.1.2,ISC
 glob-base,0.3.0,MIT
 glob-parent,2.0.0,ISC
 globalid,0.3.7,MIT
 globals,9.18.0,MIT
 globby,5.0.0,MIT
+globby,6.1.0,MIT
 gollum-grit_adapter,1.0.1,MIT
 gollum-lib,4.2.7,MIT
 gollum-rugged_adapter,0.4.4,MIT
 gon,6.1.0,MIT
 good-listener,1.2.2,MIT
 google-api-client,0.13.6,Apache 2.0
-google-protobuf,3.4.0.2,New BSD
+google-protobuf,3.4.1.1,New BSD
+googleapis-common-protos-types,1.0.0,Apache 2.0
 googleauth,0.5.3,Apache 2.0
+got,3.3.1,MIT
 got,7.1.0,MIT
 gpgme,2.0.13,LGPL-2.1+
 graceful-fs,4.1.11,ISC
@@ -458,25 +533,31 @@ grape,1.0.0,MIT
 grape-entity,0.6.0,MIT
 grape-route-helpers,2.1.0,MIT
 grape_logging,1.7.0,MIT
-grpc,1.6.0,Apache 2.0
+grpc,1.6.6,Apache 2.0
 gzip-size,3.0.0,MIT
 hamlit,2.6.1,MIT
 handle-thing,1.2.5,MIT
 handlebars,4.0.6,MIT
+har-schema,1.0.5,ISC
+har-validator,4.2.1,ISC
 has,1.0.1,MIT
 has-ansi,2.0.0,MIT
 has-binary,0.1.7,MIT
 has-cors,1.1.0,MIT
+has-flag,1.0.0,MIT
 has-flag,2.0.0,MIT
 has-symbol-support-x,1.3.0,MIT
 has-to-string-tag-x,1.3.0,MIT
+has-unicode,2.0.1,ISC
 hash-sum,1.0.2,MIT
 hash.js,1.0.3,MIT
 hashie,3.5.6,MIT
 hashie-forbidden_attributes,0.1.1,MIT
+hawk,3.1.3,New BSD
 he,1.1.1,MIT
 health_check,2.6.0,MIT
 hipchat,1.5.2,MIT
+hoek,2.16.3,New BSD
 home-or-tmp,2.0.0,MIT
 hosted-git-info,2.2.0,ISC
 hpack.js,2.1.6,MIT
@@ -489,10 +570,12 @@ htmlparser2,3.9.2,MIT
 http,0.9.8,MIT
 http-cookie,1.0.3,MIT
 http-deceiver,1.2.7,MIT
+http-errors,1.6.1,MIT
 http-errors,1.6.2,MIT
 http-form_data,1.0.1,MIT
 http-proxy,1.16.2,MIT
 http-proxy-middleware,0.17.4,MIT
+http-signature,1.1.1,MIT
 http_parser.rb,0.6.0,MIT
 httparty,0.13.7,MIT
 httpclient,2.8.2,ruby
@@ -513,6 +596,7 @@ indexof,0.0.1,unknown
 infinity-agent,2.0.3,MIT
 inflight,1.0.6,ISC
 influxdb,0.2.3,MIT
+inherits,2.0.1,ISC
 inherits,2.0.3,ISC
 ini,1.3.4,ISC
 inquirer,0.12.0,MIT
@@ -532,12 +616,16 @@ is-builtin-module,1.0.0,MIT
 is-dotfile,1.0.2,MIT
 is-equal-shallow,0.1.3,MIT
 is-extendable,0.1.1,MIT
+is-extglob,1.0.0,MIT
 is-extglob,2.1.1,MIT
 is-finite,1.0.2,MIT
+is-fullwidth-code-point,1.0.0,MIT
 is-fullwidth-code-point,2.0.0,MIT
+is-glob,2.0.1,MIT
 is-glob,3.1.0,MIT
 is-my-json-valid,2.16.0,MIT
 is-npm,1.0.0,MIT
+is-number,0.1.1,MIT
 is-number,2.1.0,MIT
 is-object,1.0.1,MIT
 is-path-cwd,1.0.0,MIT
@@ -553,13 +641,16 @@ is-resolvable,1.0.0,MIT
 is-retry-allowed,1.1.0,MIT
 is-stream,1.1.0,MIT
 is-svg,2.1.0,MIT
+is-typedarray,1.0.0,MIT
 is-unc-path,0.1.2,MIT
 is-utf8,0.2.1,MIT
 is-windows,0.2.0,MIT
+isarray,0.0.1,MIT
 isarray,1.0.0,MIT
 isbinaryfile,3.0.2,MIT
-isexe,2.0.0,ISC
+isexe,1.1.2,ISC
 isobject,2.1.0,MIT
+isstream,0.1.2,MIT
 istanbul,0.4.5,New BSD
 istanbul-api,1.1.1,New BSD
 istanbul-lib-coverage,1.0.1,New BSD
@@ -573,6 +664,7 @@ jasmine-core,2.6.3,MIT
 jasmine-jquery,2.1.1,MIT
 jed,1.1.1,MIT
 jira-ruby,1.4.1,MIT
+jodid25519,1.0.2,MIT
 jquery,2.2.1,MIT
 jquery-atwho-rails,1.3.2,MIT
 jquery-rails,4.1.1,MIT
@@ -582,18 +674,23 @@ js-beautify,1.6.12,MIT
 js-cookie,2.1.3,MIT
 js-tokens,3.0.1,MIT
 js-yaml,3.7.0,MIT
+js-yaml,3.9.1,MIT
+jsbn,0.1.1,MIT
+jsesc,0.5.0,MIT
 jsesc,1.3.0,MIT
 json,1.8.6,ruby
 json-jwt,1.7.2,MIT
 json-loader,0.5.7,MIT
+json-schema,0.2.3,"AFLv2.1,BSD"
 json-schema-traverse,0.3.1,MIT
 json-stable-stringify,1.0.1,MIT
 json-stringify-safe,5.0.1,ISC
-json3,3.3.2,[Circular]
+json3,3.3.2,MIT
 json5,0.5.1,MIT
 jsonfile,2.4.0,MIT
 jsonify,0.0.0,Public Domain
 jsonpointer,4.0.1,MIT
+jsprim,1.4.0,MIT
 jszip,3.1.3,(MIT OR GPL-3.0)
 jszip-utils,0.0.2,MIT or GPLv3
 jwt,1.5.6,MIT
@@ -619,11 +716,14 @@ levn,0.3.0,MIT
 licensee,8.7.0,MIT
 lie,3.1.1,MIT
 little-plugger,1.1.4,MIT
+load-json-file,1.1.0,MIT
 load-json-file,2.0.0,MIT
 loader-runner,2.3.0,MIT
+loader-utils,0.2.16,MIT
 loader-utils,1.1.0,MIT
 locale,2.1.2,"ruby,LGPLv3+"
 locate-path,2.0.0,MIT
+lodash,3.10.1,MIT
 lodash,4.17.4,MIT
 lodash._baseassign,3.2.0,MIT
 lodash._basecopy,3.0.1,MIT
@@ -634,11 +734,13 @@ lodash._getnative,3.9.1,MIT
 lodash._isiterateecall,3.0.9,MIT
 lodash._topath,3.8.1,MIT
 lodash.assign,3.2.0,MIT
+lodash.camelcase,4.1.1,MIT
 lodash.camelcase,4.3.0,MIT
 lodash.capitalize,4.2.1,MIT
 lodash.cond,4.5.2,MIT
 lodash.deburr,4.1.0,MIT
 lodash.defaults,3.1.2,MIT
+lodash.get,3.7.0,MIT
 lodash.get,4.4.2,MIT
 lodash.isarguments,3.1.0,MIT
 lodash.isarray,3.0.4,MIT
@@ -658,7 +760,9 @@ loofah,2.0.3,MIT
 loose-envify,1.3.1,MIT
 loud-rejection,1.6.0,MIT
 lowercase-keys,1.0.0,MIT
+lru-cache,2.2.4,MIT
 lru-cache,3.2.0,ISC
+lru-cache,4.0.2,ISC
 macaddress,0.2.8,MIT
 mail,2.6.6,MIT
 mail_room,0.9.1,MIT
@@ -670,6 +774,7 @@ math-expression-evaluator,1.2.16,MIT
 media-typer,0.3.0,MIT
 mem,1.1.0,MIT
 memoist,0.16.0,MIT
+memory-fs,0.2.0,MIT
 memory-fs,0.4.1,MIT
 meow,3.7.0,MIT
 merge-descriptors,1.0.1,MIT
@@ -677,8 +782,10 @@ method_source,0.8.2,MIT
 methods,1.1.2,MIT
 micromatch,2.3.11,MIT
 miller-rabin,4.0.0,MIT
-mime,1.3.4,[Circular]
+mime,1.3.4,MIT
+mime-db,1.27.0,MIT
 mime-db,1.29.0,MIT
+mime-types,2.1.15,MIT
 mime-types,3.1,MIT
 mime-types-data,3.2016.0521,MIT
 mimemagic,0.3.0,MIT
@@ -687,13 +794,17 @@ mimic-response,1.0.0,MIT
 mini_portile2,2.3.0,MIT
 minimalistic-assert,1.0.0,ISC
 minimatch,3.0.3,ISC
+minimatch,3.0.4,ISC
 minimist,0.0.8,MIT
+minimist,1.2.0,MIT
 mkdirp,0.5.1,MIT
 mmap2,2.2.7,ruby
 moment,2.17.1,MIT
-monaco-editor,0.8.3,MIT
+monaco-editor,0.10.0,MIT
 mousetrap,1.4.6,Apache 2.0
 mousetrap-rails,1.4.6,"MIT,Apache"
+ms,0.7.1,MIT
+ms,0.7.2,MIT
 ms,2.0.0,MIT
 multi_json,1.12.2,MIT
 multi_xml,0.6.0,MIT
@@ -703,7 +814,9 @@ multipart-post,2.0.0,MIT
 mustermann,1.0.0,MIT
 mustermann-grape,1.0.0,MIT
 mute-stream,0.0.5,ISC
+mysql2,0.4.5,MIT
 name-all-modules-plugin,1.0.1,MIT
+nan,2.6.2,MIT
 natural-compare,1.4.0,MIT
 negotiator,0.6.1,MIT
 nested-error-stacks,1.0.2,MIT
@@ -712,21 +825,30 @@ net-ssh,4.1.0,MIT
 netrc,0.11.0,MIT
 node-dir,0.1.17,MIT
 node-forge,0.6.33,BSD
+node-libs-browser,1.1.1,MIT
 node-libs-browser,2.0.0,MIT
+node-pre-gyp,0.6.36,New BSD
+node-pre-gyp,0.6.37,New BSD
 nodemon,1.11.0,MIT
 nokogiri,1.8.1,MIT
+nopt,1.0.10,MIT
 nopt,3.0.6,ISC
-normalize-package-data,2.3.5,Simplified BSD
+nopt,4.0.1,ISC
+normalize-package-data,2.4.0,Simplified BSD
 normalize-path,2.1.1,MIT
 normalize-range,0.1.2,MIT
 normalize-url,1.9.1,MIT
 npm-run-path,2.0.2,MIT
+npmlog,4.1.0,ISC
 null-check,1.0.0,MIT
 num2fraction,1.2.2,MIT
 number-is-nan,1.0.1,MIT
 numerizer,0.1.1,MIT
 oauth,0.5.1,MIT
+oauth-sign,0.8.2,Apache 2.0
 oauth2,1.4.0,MIT
+object-assign,3.0.0,MIT
+object-assign,4.1.0,MIT
 object-assign,4.1.1,MIT
 object-component,0.0.3,unknown
 object.omit,2.0.1,MIT
@@ -766,6 +888,7 @@ orm_adapter,0.5.0,MIT
 os,0.9.6,MIT
 os-browserify,0.2.1,MIT
 os-homedir,1.0.2,MIT
+os-locale,1.4.0,MIT
 os-locale,2.1.0,MIT
 os-tmpdir,1.0.2,MIT
 osenv,0.1.4,ISC
@@ -776,6 +899,7 @@ p-locate,2.0.0,MIT
 p-map,1.1.1,MIT
 p-timeout,1.2.0,MIT
 package-json,1.2.0,MIT
+pako,0.2.9,MIT
 pako,1.0.5,(MIT AND Zlib)
 paranoia,2.3.1,MIT
 parse-asn1,5.0.0,ISC
@@ -786,28 +910,34 @@ parseqs,0.0.5,MIT
 parseuri,0.0.5,MIT
 parseurl,1.3.1,MIT
 path-browserify,0.0.0,MIT
+path-exists,2.1.0,MIT
 path-exists,3.0.0,MIT
 path-is-absolute,1.0.1,MIT
 path-is-inside,1.0.2,(WTFPL OR MIT)
 path-key,2.0.1,MIT
 path-parse,1.0.5,MIT
 path-to-regexp,0.1.7,MIT
+path-type,1.1.0,MIT
 path-type,2.0.0,MIT
 pause-stream,0.0.11,"MIT,Apache2"
 pbkdf2,3.0.9,MIT
 peek,1.0.1,MIT
 peek-gc,0.0.2,MIT
 peek-host,1.0.0,MIT
+peek-mysql2,1.1.0,MIT
 peek-performance_bar,1.3.0,MIT
 peek-pg,1.3.0,MIT
 peek-rblineprof,0.2.0,MIT
 peek-redis,1.2.0,MIT
 peek-sidekiq,1.0.3,MIT
+performance-now,0.2.0,MIT
 pg,0.18.4,"BSD,ruby,GPL"
 pify,2.3.0,MIT
-pikaday,1.5.1,"BSD,MIT"
+pify,3.0.0,MIT
+pikaday,1.6.1,MIT
 pinkie,2.0.4,MIT
 pinkie-promise,2.0.1,MIT
+pkg-dir,1.0.0,MIT
 pkg-dir,2.0.0,MIT
 pkg-up,1.0.0,MIT
 pluralize,1.2.1,MIT
@@ -860,7 +990,7 @@ private,0.1.7,MIT
 process,0.11.9,MIT
 process-nextick-args,1.0.7,MIT
 progress,1.1.8,MIT
-prometheus-client-mmap,0.7.0.beta14,Apache 2.0
+prometheus-client-mmap,0.7.0.beta18,Apache 2.0
 proto-list,1.2.4,ISC
 proxy-addr,1.1.5,MIT
 prr,0.0.0,MIT
@@ -868,15 +998,18 @@ ps-tree,1.1.0,MIT
 pseudomap,1.0.2,ISC
 public-encrypt,4.0.0,MIT
 public_suffix,3.0.0,MIT
+punycode,1.3.2,MIT
 punycode,1.4.1,MIT
 pyu-ruby-sasl,0.0.3.3,MIT
 q,1.5.0,MIT
 qjobs,1.1.5,MIT
+qs,6.4.0,New BSD
 qs,6.5.0,New BSD
 query-string,4.3.2,MIT
 querystring,0.2.0,MIT
-querystring-es3,0.2.1,[Circular]
+querystring-es3,0.2.1,MIT
 querystringify,0.0.4,MIT
+querystringify,1.0.0,MIT
 rack,1.6.8,MIT
 rack-accept,0.4.5,MIT
 rack-attack,4.4.1,MIT
@@ -908,9 +1041,14 @@ rdoc,4.2.2,ruby
 re2,1.1.1,New BSD
 react-dev-utils,0.5.2,New BSD
 read-all-stream,3.1.0,MIT
+read-pkg,1.1.0,MIT
 read-pkg,2.0.0,MIT
+read-pkg-up,1.0.1,MIT
 read-pkg-up,2.0.0,MIT
+readable-stream,1.0.34,MIT
 readable-stream,2.0.6,MIT
+readable-stream,2.2.9,MIT
+readable-stream,2.3.3,MIT
 readdirp,2.1.0,MIT
 readline2,1.0.1,MIT
 recaptcha,3.0.0,MIT
@@ -932,21 +1070,26 @@ regenerate,1.3.2,MIT
 regenerator-runtime,0.10.1,MIT
 regenerator-transform,0.9.8,BSD
 regex-cache,0.4.3,MIT
+regexpu-core,1.0.0,MIT
 regexpu-core,2.0.0,MIT
 registry-url,3.1.0,MIT
 regjsgen,0.2.0,MIT
 regjsparser,0.1.5,BSD
 remove-trailing-separator,1.1.0,ISC
 repeat-element,1.1.2,MIT
+repeat-string,0.2.2,MIT
 repeat-string,1.6.1,MIT
+repeating,1.1.3,MIT
 repeating,2.0.1,MIT
 representable,3.0.4,MIT
+request,2.81.0,Apache 2.0
 request_store,1.3.1,MIT
 require-directory,2.1.1,MIT
 require-from-string,1.2.1,MIT
 require-main-filename,1.0.1,ISC
 require-uncached,1.0.3,MIT
 requires-port,1.0.0,MIT
+resolve,1.1.7,MIT
 resolve,1.2.0,MIT
 resolve-from,1.0.1,MIT
 responders,2.3.0,MIT
@@ -972,6 +1115,7 @@ rugged,0.26.0,MIT
 run-async,0.1.0,MIT
 rx-lite,3.1.2,Apache 2.0
 safe-buffer,5.0.1,MIT
+safe-buffer,5.1.1,MIT
 safe_yaml,1.0.4,MIT
 sanitize,2.1.0,MIT
 sass,3.4.22,MIT
@@ -985,6 +1129,7 @@ select-hose,2.0.0,MIT
 select2,3.5.2-browserify,unknown
 select2-rails,3.5.9.3,MIT
 selfsigned,1.10.1,MIT
+semver,4.3.6,ISC
 semver,5.3.0,ISC
 semver-diff,2.1.0,MIT
 send,0.15.4,MIT
@@ -1011,14 +1156,20 @@ slack-notifier,1.5.1,MIT
 slash,1.0.0,MIT
 slice-ansi,0.0.4,MIT
 slide,1.1.6,ISC
+sntp,1.0.9,BSD
 socket.io,1.7.3,MIT
 socket.io-adapter,0.5.0,MIT
 socket.io-client,1.7.3,MIT
 socket.io-parser,2.3.1,MIT
 sockjs,0.3.18,MIT
 sockjs-client,1.0.1,MIT
+sockjs-client,1.1.4,MIT
 sort-keys,1.1.2,MIT
+source-list-map,0.1.8,MIT
 source-list-map,2.0.0,MIT
+source-map,0.1.43,BSD
+source-map,0.2.0,BSD
+source-map,0.4.4,New BSD
 source-map,0.5.6,New BSD
 source-map-support,0.4.11,MIT
 spdx-correct,1.0.2,Apache 2.0
@@ -1031,6 +1182,7 @@ sprintf-js,1.0.3,New BSD
 sprockets,3.7.1,MIT
 sprockets-rails,3.2.0,MIT
 sql.js,0.4.0,MIT
+sshpk,1.13.0,MIT
 state_machines,0.4.0,MIT
 state_machines-activemodel,0.4.0,MIT
 state_machines-activerecord,0.4.0,MIT
@@ -1042,19 +1194,29 @@ stream-shift,1.0.0,MIT
 strict-uri-encode,1.1.0,MIT
 string-length,1.0.1,MIT
 string-width,1.0.2,MIT
+string-width,2.0.0,MIT
 string_decoder,0.10.31,MIT
+string_decoder,1.0.1,MIT
+string_decoder,1.0.3,MIT
 stringex,2.7.1,MIT
+stringstream,0.0.5,MIT
 strip-ansi,3.0.1,MIT
+strip-bom,2.0.0,MIT
 strip-bom,3.0.0,MIT
 strip-eof,1.0.0,MIT
 strip-indent,1.0.1,MIT
 strip-json-comments,2.0.1,MIT
+supports-color,2.0.0,MIT
 supports-color,3.2.3,MIT
+supports-color,4.2.1,MIT
 svg4everybody,2.1.9,CC0-1.0
 svgo,0.7.2,MIT
 sys-filesystem,1.1.6,Artistic 2.0
 table,3.8.3,New BSD
+tapable,0.1.10,MIT
 tapable,0.2.8,MIT
+tar,2.2.1,ISC
+tar-pack,3.4.0,Simplified BSD
 temple,0.7.7,MIT
 test-exclude,4.0.0,ISC
 text,1.3.1,MIT
@@ -1067,9 +1229,10 @@ three-stl-loader,1.0.4,MIT
 through,2.3.8,MIT
 thunky,0.1.0,unknown
 tilt,2.0.6,MIT
-time-stamp,2.0.0,MIT
 timeago.js,2.0.5,MIT
+timed-out,2.0.0,MIT
 timed-out,4.0.1,MIT
+timers-browserify,1.4.2,MIT
 timers-browserify,2.0.4,MIT
 timfel-krb5-auth,0.8.3,LGPL
 tiny-emitter,1.1.0,MIT
@@ -1079,15 +1242,20 @@ to-arraybuffer,1.0.1,MIT
 to-fast-properties,1.0.2,MIT
 toml-rb,0.3.15,MIT
 touch,1.0.0,ISC
+tough-cookie,2.3.2,New BSD
 traverse,0.6.6,MIT
 trim-newlines,1.0.0,MIT
 trim-right,1.0.1,MIT
 truncato,0.7.10,MIT
 tryit,1.0.3,MIT
+ts-loader,3.1.1,MIT
 tty-browserify,0.0.0,MIT
+tunnel-agent,0.6.0,Apache 2.0
+tweetnacl,0.14.5,Unlicense
 type-check,0.3.2,MIT
 type-is,1.6.15,MIT
 typedarray,0.0.6,MIT
+typescript,2.6.1,Apache 2.0
 tzinfo,1.2.3,MIT
 u2f,0.2.1,MIT
 uber,0.1.0,MIT
@@ -1095,6 +1263,8 @@ uglifier,2.7.2,MIT
 uglify-js,2.8.29,Simplified BSD
 uglify-to-browserify,1.0.2,MIT
 uglifyjs-webpack-plugin,0.4.6,MIT
+uid-number,0.0.6,ISC
+ultron,1.0.2,MIT
 ultron,1.1.0,MIT
 unc-path-regex,0.1.2,MIT
 undefsafe,0.0.3,MIT / http://rem.mit-license.org
@@ -1111,6 +1281,8 @@ update-notifier,0.5.0,Simplified BSD
 url,0.11.0,MIT
 url-loader,0.5.8,MIT
 url-parse,1.0.5,MIT
+url-parse,1.1.7,MIT
+url-parse,1.1.9,MIT
 url-parse-lax,1.0.0,MIT
 url-to-options,1.0.1,MIT
 url_safe_base64,0.2.2,MIT
@@ -1118,26 +1290,28 @@ user-home,2.0.0,MIT
 useragent,2.2.1,MIT
 util,0.10.3,MIT
 util-deprecate,1.0.2,MIT
-utils-merge,1.0.0,[Circular]
+utils-merge,1.0.0,MIT
 uuid,2.0.3,MIT
+uuid,3.0.1,MIT
 validate-npm-package-license,3.0.1,Apache 2.0
 validates_hostname,1.0.6,MIT
 vary,1.1.1,MIT
 vendors,1.0.1,MIT
+verror,1.3.6,MIT
 version_sorter,2.1.0,MIT
 virtus,1.0.5,MIT
 visibilityjs,1.2.4,MIT
 vm-browserify,0.0.4,MIT
 vmstat,2.3.0,MIT
 void-elements,2.0.1,MIT
-vue,2.2.6,MIT
+vue,2.5.2,MIT
 vue-hot-reload-api,2.0.11,MIT
 vue-loader,11.3.4,MIT
 vue-resource,1.3.4,MIT
 vue-style-loader,2.0.5,MIT
-vue-template-compiler,2.2.6,MIT
+vue-template-compiler,2.5.2,MIT
 vue-template-es2015-compiler,1.5.1,MIT
-vuex,2.3.1,MIT
+vuex,3.0.0,MIT
 warden,1.2.6,MIT
 watchpack,1.4.0,MIT
 wbuf,1.7.2,MIT
@@ -1151,15 +1325,20 @@ webpack-stats-plugin,0.1.5,MIT
 websocket-driver,0.6.5,MIT
 websocket-extensions,0.1.1,MIT
 whet.extend,0.9.9,MIT
-which,1.3.0,ISC
+which,1.2.12,ISC
+which-module,1.0.0,ISC
 which-module,2.0.0,ISC
+wide-align,1.1.2,ISC
 wikicloth,0.8.1,MIT
 window-size,0.1.0,MIT
+wordwrap,0.0.2,MIT/X11
+wordwrap,0.0.3,MIT
 wordwrap,1.0.0,MIT
 wrap-ansi,2.1.0,MIT
 wrappy,1.0.2,ISC
 write,0.2.1,MIT
 write-file-atomic,1.3.4,ISC
+ws,1.1.2,MIT
 ws,2.3.1,MIT
 wtf-8,1.0.0,MIT
 xdg-basedir,2.0.0,MIT
@@ -1168,6 +1347,9 @@ xmlhttprequest-ssl,1.5.3,MIT
 xtend,4.0.1,MIT
 y18n,3.2.1,ISC
 yallist,2.1.2,ISC
+yargs,3.10.0,MIT
+yargs,6.6.0,MIT
 yargs,8.0.2,MIT
+yargs-parser,4.2.1,ISC
 yargs-parser,7.0.0,ISC
 yeast,0.1.2,MIT
diff --git a/yarn.lock b/yarn.lock
index bf92370d44f..1271c8a1ee3 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2,6 +2,10 @@
 # yarn lockfile v1
 
 
+"@gitlab-org/gitlab-svgs@^1.0.2":
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/@gitlab-org/gitlab-svgs/-/gitlab-svgs-1.0.2.tgz#e4d29058e2bb438ba71ac525c6397ef15ae2877b"
+
 abbrev@1, abbrev@1.0.x:
   version "1.0.9"
   resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.0.9.tgz#91b4792588a7738c25f35dd6f63752a2f8776135"
@@ -2720,10 +2724,6 @@ getpass@^0.1.1:
   dependencies:
     assert-plus "^1.0.0"
 
-"gitlab-svgs@https://gitlab.com/gitlab-org/gitlab-svgs.git":
-  version "1.0.4"
-  resolved "https://gitlab.com/gitlab-org/gitlab-svgs.git#0442503549e6d74a4e22e1641e1d2ab0ae09884b"
-
 glob-base@^0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/glob-base/-/glob-base-0.3.0.tgz#dbb164f6221b1c0b1ccf82aea328b497df0ea3c4"