Merge branch 'master' of https://gitlab.com/gitlab-org/gitlab-ce into an/gitaly-timeoutsan/gitaly-timeouts

# Conflicts:
#	app/models/application_setting.rb
#	db/schema.rb

455 files changed, 9195 insertions, 5794 deletions

diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 87d73fc0c52..38fb743b0c9 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,7 +1,7 @@
-image: "dev.gitlab.org:5005/gitlab/gitlab-build-images:ruby-2.3.3-golang-1.8-git-2.13-phantomjs-2.1-node-8.x-yarn-1.0-postgresql-9.6"
+image: "dev.gitlab.org:5005/gitlab/gitlab-build-images:ruby-2.3.5-golang-1.8-git-2.13-phantomjs-2.1-node-8.x-yarn-1.0-postgresql-9.6"
 
 .default-cache: &default-cache
-  key: "ruby-233-with-yarn"
+  key: "ruby-235-with-yarn"
   paths:
     - vendor/ruby
     - .yarn-cache/
@@ -455,7 +455,7 @@ db:migrate:reset-mysql:
   variables:
     SETUP_DB: "false"
   script:
-    - git fetch origin v8.14.10
+    - git fetch origin v9.3.0
     - git checkout -f FETCH_HEAD
     - bundle install $BUNDLE_INSTALL_FLAGS
     - cp config/gitlab.yml.example config/gitlab.yml
@@ -551,7 +551,7 @@ karma:
   <<: *dedicated-runner
   <<: *except-docs
   <<: *pull-cache
-  image: "dev.gitlab.org:5005/gitlab/gitlab-build-images:ruby-2.3.3-golang-1.8-git-2.13-chrome-61.0-node-8.x-yarn-1.0-postgresql-9.6"
+  image: "dev.gitlab.org:5005/gitlab/gitlab-build-images:ruby-2.3.5-golang-1.8-git-2.13-chrome-61.0-node-8.x-yarn-1.0-postgresql-9.6"
   stage: test
   variables:
     BABEL_ENV: "coverage"
diff --git a/.gitlab/route-map.yml b/.gitlab/route-map.yml
new file mode 100644
index 00000000000..0b37dc68f8b
--- /dev/null
+++ b/.gitlab/route-map.yml
@@ -0,0 +1,3 @@
+# Documentation
+- source: /doc/(.+?)\.md/ # doc/administration/build_artifacts.md
+  public: '\1.html' # doc/administration/build_artifacts.html
diff --git a/.ruby-version b/.ruby-version
index 0bee604df76..cc6c9a491e0 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-2.3.3
+2.3.5
diff --git a/.scss-lint.yml b/.scss-lint.yml
index 73f8d27f78c..d2c972fa9c4 100644
--- a/.scss-lint.yml
+++ b/.scss-lint.yml
@@ -121,7 +121,8 @@ linters:
 
   # Avoid nesting selectors too deeply.
   NestingDepth:
-    enabled: false
+    enabled: true
+    max_depth: 6
 
   # Always use placeholder selectors in @extend.
   PlaceholderInExtend:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 578651639c5..6bca9944bb1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -100,7 +100,7 @@ entry.
 - [CHANGED] Added defaults for protected branches dropdowns on the repository settings. !14278
 - [CHANGED] Show confirmation modal before deleting account. !14360
 - [CHANGED] Allow creating merge requests across a fork network. !14422
-- [CHANGED] Re-arrange <script> tags before <template> tags in .vue files. !14671
+- [CHANGED] Re-arrange script HTML tags before template HTML tags in .vue files. !14671
 - [CHANGED] Create idea of read-only database. !14688
 - [CHANGED] Add active states to nav bar counters.
 - [CHANGED] Add view replaced file link for image diffs.
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 83e41a11e52..9b2ee157193 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -21,10 +21,10 @@ _This notice should stay as the first item in the CONTRIBUTING.md file._
 - [Workflow labels](#workflow-labels)
   - [Type labels (~"feature proposal", ~bug, ~customer, etc.)](#type-labels-feature-proposal-bug-customer-etc)
   - [Subject labels (~wiki, ~"container registry", ~ldap, ~api, etc.)](#subject-labels-wiki-container-registry-ldap-api-etc)
-  - [Team labels (~"CI/CD", ~Discussion, ~Edge, ~Platform, etc.)](#team-labels-ci-discussion-edge-platform-etc)
+  - [Team labels (~"CI/CD", ~Discussion, ~Edge, ~Platform, etc.)](#team-labels-cicd-discussion-edge-platform-etc)
   - [Priority labels (~Deliverable and ~Stretch)](#priority-labels-deliverable-and-stretch)
   - [Label for community contributors (~"Accepting Merge Requests")](#label-for-community-contributors-accepting-merge-requests)
-- [Implement design & UI elements](#implement-design--ui-elements)
+- [Implement design & UI elements](#implement-design-ui-elements)
 - [Issue tracker](#issue-tracker)
   - [Issue triaging](#issue-triaging)
   - [Feature proposals](#feature-proposals)
diff --git a/GITALY_SERVER_VERSION b/GITALY_SERVER_VERSION
index fbaaafa001b..c5d4cee36a1 100644
--- a/GITALY_SERVER_VERSION
+++ b/GITALY_SERVER_VERSION
@@ -1 +1 @@
-0.49.0
\ No newline at end of file
+0.51.0
diff --git a/GITLAB_WORKHORSE_VERSION b/GITLAB_WORKHORSE_VERSION
index 944880fa15e..15a27998172 100644
--- a/GITLAB_WORKHORSE_VERSION
+++ b/GITLAB_WORKHORSE_VERSION
@@ -1 +1 @@
-3.2.0
+3.3.0
diff --git a/Gemfile b/Gemfile
index f64cdca31c0..c97b1896d06 100644
--- a/Gemfile
+++ b/Gemfile
@@ -90,7 +90,7 @@ gem 'kaminari', '~> 1.0'
 gem 'hamlit', '~> 2.6.1'
 
 # Files attachments
-gem 'carrierwave', '~> 1.1'
+gem 'carrierwave', '~> 1.2'
 
 # Drag and Drop UI
 gem 'dropzonejs-rails', '~> 0.7.1'
@@ -281,7 +281,7 @@ group :metrics do
   gem 'influxdb', '~> 0.2', require: false
 
   # Prometheus
-  gem 'prometheus-client-mmap', '~>0.7.0.beta17'
+  gem 'prometheus-client-mmap', '~>0.7.0.beta18'
   gem 'raindrops', '~> 0.18'
 end
 
@@ -398,7 +398,7 @@ group :ed25519 do
 end
 
 # Gitaly GRPC client
-gem 'gitaly-proto', '~> 0.45.0', require: 'gitaly'
+gem 'gitaly-proto', '~> 0.51.0', require: 'gitaly'
 
 gem 'toml-rb', '~> 0.3.15', require: false
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 601d5ca16e2..4142977285e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -107,7 +107,7 @@ GEM
     capybara-screenshot (1.0.14)
       capybara (>= 1.0, < 3)
       launchy
-    carrierwave (1.1.0)
+    carrierwave (1.2.1)
       activemodel (>= 4.0.0)
       activesupport (>= 4.0.0)
       mime-types (>= 1.16)
@@ -273,7 +273,7 @@ GEM
       po_to_json (>= 1.0.0)
       rails (>= 3.2.0)
     gherkin-ruby (0.3.2)
-    gitaly-proto (0.45.0)
+    gitaly-proto (0.51.0)
       google-protobuf (~> 3.1)
       grpc (~> 1.0)
     github-linguist (4.7.6)
@@ -623,7 +623,7 @@ GEM
       parser
       unparser
     procto (0.0.3)
-    prometheus-client-mmap (0.7.0.beta17)
+    prometheus-client-mmap (0.7.0.beta18)
       mmap2 (~> 2.2, >= 2.2.7)
     pry (0.10.4)
       coderay (~> 1.1.0)
@@ -990,7 +990,7 @@ DEPENDENCIES
   bundler-audit (~> 0.5.0)
   capybara (~> 2.15.0)
   capybara-screenshot (~> 1.0.0)
-  carrierwave (~> 1.1)
+  carrierwave (~> 1.2)
   charlock_holmes (~> 0.7.5)
   chronic (~> 0.10.2)
   chronic_duration (~> 0.10.6)
@@ -1030,7 +1030,7 @@ DEPENDENCIES
   gettext (~> 3.2.2)
   gettext_i18n_rails (~> 1.8.0)
   gettext_i18n_rails_js (~> 1.2.0)
-  gitaly-proto (~> 0.45.0)
+  gitaly-proto (~> 0.51.0)
   github-linguist (~> 4.7.0)
   gitlab-flowdock-git-hook (~> 1.0.1)
   gitlab-markup (~> 1.6.2)
@@ -1106,7 +1106,7 @@ DEPENDENCIES
   pg (~> 0.18.2)
   poltergeist (~> 1.9.0)
   premailer-rails (~> 1.9.7)
-  prometheus-client-mmap (~> 0.7.0.beta17)
+  prometheus-client-mmap (~> 0.7.0.beta18)
   pry-byebug (~> 3.4.1)
   pry-rails (~> 0.3.4)
   rack-attack (~> 4.4.1)
diff --git a/app/assets/javascripts/api.js b/app/assets/javascripts/api.js
index 242b3e2b990..d963101028a 100644
--- a/app/assets/javascripts/api.js
+++ b/app/assets/javascripts/api.js
@@ -16,6 +16,7 @@ const Api = {
   usersPath: '/api/:version/users.json',
   commitPath: '/api/:version/projects/:id/repository/commits',
   branchSinglePath: '/api/:version/projects/:id/repository/branches/:branch',
+  createBranchPath: '/api/:version/projects/:id/repository/branches',
 
   group(groupId, callback) {
     const url = Api.buildUrl(Api.groupPath)
diff --git a/app/assets/javascripts/autosave.js b/app/assets/javascripts/autosave.js
index 4d2d4db7c0e..0f28bd233ac 100644
--- a/app/assets/javascripts/autosave.js
+++ b/app/assets/javascripts/autosave.js
@@ -1,8 +1,9 @@
-/* eslint-disable func-names, space-before-function-paren, wrap-iife, no-param-reassign, quotes, prefer-template, no-var, one-var, no-unused-vars, one-var-declaration-per-line, no-void, consistent-return, no-empty, max-len */
+/* eslint-disable no-param-reassign, prefer-template, no-var, no-void, consistent-return */
+
 import AccessorUtilities from './lib/utils/accessor';
 
-window.Autosave = (function() {
-  function Autosave(field, key, resource) {
+export default class Autosave {
+  constructor(field, key, resource) {
     this.field = field;
     this.isLocalStorageAvailable = AccessorUtilities.isLocalStorageAccessSafe();
     this.resource = resource;
@@ -12,14 +13,10 @@ window.Autosave = (function() {
     this.key = 'autosave/' + key;
     this.field.data('autosave', this);
     this.restore();
-    this.field.on('input', (function(_this) {
-      return function() {
-        return _this.save();
-      };
-    })(this));
+    this.field.on('input', () => this.save());
   }
 
-  Autosave.prototype.restore = function() {
+  restore() {
     var text;
 
     if (!this.isLocalStorageAvailable) return;
@@ -40,9 +37,9 @@ window.Autosave = (function() {
         field.dispatchEvent(event);
       }
     }
-  };
+  }
 
-  Autosave.prototype.save = function() {
+  save() {
     var text;
     text = this.field.val();
 
@@ -51,15 +48,11 @@ window.Autosave = (function() {
     }
 
     return this.reset();
-  };
+  }
 
-  Autosave.prototype.reset = function() {
+  reset() {
     if (!this.isLocalStorageAvailable) return;
 
     return window.localStorage.removeItem(this.key);
-  };
-
-  return Autosave;
-})();
-
-export default window.Autosave;
+  }
+}
diff --git a/app/assets/javascripts/behaviors/autosize.js b/app/assets/javascripts/behaviors/autosize.js
index e00af4b2fa8..add43b81f6d 100644
--- a/app/assets/javascripts/behaviors/autosize.js
+++ b/app/assets/javascripts/behaviors/autosize.js
@@ -1,8 +1,8 @@
-import autosize from 'vendor/autosize';
+import Autosize from 'autosize';
 
 document.addEventListener('DOMContentLoaded', () => {
   const autosizeEls = document.querySelectorAll('.js-autosize');
 
-  autosize(autosizeEls);
-  autosize.update(autosizeEls);
+  Autosize(autosizeEls);
+  Autosize.update(autosizeEls);
 });
diff --git a/app/assets/javascripts/boards/components/board_sidebar.js b/app/assets/javascripts/boards/components/board_sidebar.js
index c1f902a785a..9ae5e270a4b 100644
--- a/app/assets/javascripts/boards/components/board_sidebar.js
+++ b/app/assets/javascripts/boards/components/board_sidebar.js
@@ -1,7 +1,5 @@
 /* eslint-disable comma-dangle, space-before-function-paren, no-new */
-/* global IssuableContext */
 /* global MilestoneSelect */
-/* global LabelsSelect */
 /* global Sidebar */
 
 import Vue from 'vue';
@@ -11,6 +9,8 @@ import AssigneeTitle from '../../sidebar/components/assignees/assignee_title';
 import Assignees from '../../sidebar/components/assignees/assignees';
 import DueDateSelectors from '../../due_date_select';
 import './sidebar/remove_issue';
+import IssuableContext from '../../issuable_context';
+import LabelsSelect from '../../labels_select';
 
 const Store = gl.issueBoards.BoardsStore;
 
diff --git a/app/assets/javascripts/clusters.js b/app/assets/javascripts/clusters.js
index 180aa30e98c..661870c226c 100644
--- a/app/assets/javascripts/clusters.js
+++ b/app/assets/javascripts/clusters.js
@@ -64,19 +64,16 @@ export default class Clusters {
     this.poll = new Poll({
       resource: this.service,
       method: 'fetchData',
-      successCallback: (data) => {
-        const { status, status_reason } = data.data;
-        this.updateContainer(status, status_reason);
-      },
-      errorCallback: () => {
-        Flash(s__('ClusterIntegration|Something went wrong on our end.'));
-      },
+      successCallback: data => this.handleSuccess(data),
+      errorCallback: () => Clusters.handleError(),
     });
 
     if (!Visibility.hidden()) {
       this.poll.makeRequest();
     } else {
-      this.service.fetchData();
+      this.service.fetchData()
+        .then(data => this.handleSuccess(data))
+        .catch(() => Clusters.handleError());
     }
 
     Visibility.change(() => {
@@ -88,6 +85,15 @@ export default class Clusters {
     });
   }
 
+  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');
diff --git a/app/assets/javascripts/new_sidebar.js b/app/assets/javascripts/contextual_sidebar.js
index 997550b37fb..46b68ebe158 100644
--- a/app/assets/javascripts/new_sidebar.js
+++ b/app/assets/javascripts/contextual_sidebar.js
@@ -2,7 +2,7 @@ import Cookies from 'js-cookie';
 import _ from 'underscore';
 import bp from './breakpoints';
 
-export default class NewNavSidebar {
+export default class ContextualSidebar {
   constructor() {
     this.initDomElements();
     this.render();
@@ -55,7 +55,7 @@ export default class NewNavSidebar {
       this.$sidebar.toggleClass('sidebar-icons-only', collapsed);
       this.$page.toggleClass('page-with-icon-sidebar', breakpoint === 'sm' ? true : collapsed);
     }
-    NewNavSidebar.setCollapsedCookie(collapsed);
+    ContextualSidebar.setCollapsedCookie(collapsed);
 
     this.toggleSidebarOverflow();
   }
diff --git a/app/assets/javascripts/dispatcher.js b/app/assets/javascripts/dispatcher.js
index 748b1993c56..5930868412b 100644
--- a/app/assets/javascripts/dispatcher.js
+++ b/app/assets/javascripts/dispatcher.js
@@ -1,9 +1,9 @@
 /* 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 */
 /* global ProjectSelect */
-/* global IssuableIndex */
+import IssuableIndex from './issuable_index';
 /* global Milestone */
-/* global IssuableForm */
-/* global LabelsSelect */
+import IssuableForm from './issuable_form';
+import LabelsSelect from './labels_select';
 /* global MilestoneSelect */
 /* global NewBranchForm */
 /* global NotificationsForm */
@@ -13,7 +13,7 @@ import GroupLabelSubscription from './group_label_subscription';
 /* global LineHighlighter */
 import BuildArtifacts from './build_artifacts';
 import CILintEditor from './ci_lint_editor';
-/* global GroupsSelect */
+import groupsSelect from './groups_select';
 /* global Search */
 /* global Admin */
 /* global NamespaceSelects */
@@ -173,7 +173,7 @@ import Diff from './diff';
             filteredSearchManager.setup();
           }
           const pagePrefix = page === 'projects:merge_requests:index' ? 'merge_request_' : 'issue_';
-          IssuableIndex.init(pagePrefix);
+          new IssuableIndex(pagePrefix);
 
           shortcut_handler = new ShortcutsNavigation();
           new UsersSelect();
@@ -231,16 +231,21 @@ import Diff from './diff';
         case 'projects:milestones:new':
         case 'projects:milestones:edit':
         case 'projects:milestones:update':
+          new ZenMode();
+          new DueDateSelectors();
+          new GLForm($('.milestone-form'), true);
+          break;
         case 'groups:milestones:new':
         case 'groups:milestones:edit':
         case 'groups:milestones:update':
           new ZenMode();
           new DueDateSelectors();
-          new GLForm($('.milestone-form'), true);
+          new GLForm($('.milestone-form'), false);
           break;
         case 'projects:compare:show':
           new Diff();
-          initChangesDropdown();
+          const paddingTop = 16;
+          initChangesDropdown(document.querySelector('.navbar-gitlab').offsetHeight - paddingTop);
           break;
         case 'projects:branches:new':
         case 'projects:branches:create':
@@ -413,7 +418,7 @@ import Diff from './diff';
           break;
         case 'projects:project_members:index':
           memberExpirationDate('.js-access-expiration-date-groups');
-          new GroupsSelect();
+          groupsSelect();
           memberExpirationDate();
           new Members();
           new UsersSelect();
diff --git a/app/assets/javascripts/gl_dropdown.js b/app/assets/javascripts/gl_dropdown.js
index e8d8fef8579..c4202f92443 100644
--- a/app/assets/javascripts/gl_dropdown.js
+++ b/app/assets/javascripts/gl_dropdown.js
@@ -1,6 +1,7 @@
 /* eslint-disable func-names, no-underscore-dangle, space-before-function-paren, no-var, one-var, one-var-declaration-per-line, prefer-rest-params, max-len, vars-on-top, wrap-iife, no-unused-vars, quotes, no-shadow, no-cond-assign, prefer-arrow-callback, no-return-assign, no-else-return, camelcase, comma-dangle, no-lonely-if, guard-for-in, no-restricted-syntax, consistent-return, prefer-template, no-param-reassign, no-loop-func, no-mixed-operators */
 /* global fuzzaldrinPlus */
 import _ from 'underscore';
+import fuzzaldrinPlus from 'fuzzaldrin-plus';
 import { isObject } from './lib/utils/type_utility';
 
 var GitLabDropdown, GitLabDropdownFilter, GitLabDropdownRemote, GitLabDropdownInput;
diff --git a/app/assets/javascripts/groups_select.js b/app/assets/javascripts/groups_select.js
index 90ca70289ab..a69a0bde17b 100644
--- a/app/assets/javascripts/groups_select.js
+++ b/app/assets/javascripts/groups_select.js
@@ -1,121 +1,86 @@
-/* eslint-disable func-names, space-before-function-paren, no-var, wrap-iife, one-var,
-                  camelcase, one-var-declaration-per-line, quotes, object-shorthand,
-                  prefer-arrow-callback, comma-dangle, consistent-return, yoda,
-                  prefer-rest-params, prefer-spread, no-unused-vars, prefer-template,
-                  promise/catch-or-return */
 import Api from './api';
 import { normalizeCRLFHeaders } from './lib/utils/common_utils';
 
-var slice = [].slice;
+export default function groupsSelect() {
+  // Needs to be accessible in rspec
+  window.GROUP_SELECT_PER_PAGE = 20;
+  $('.ajax-groups-select').each(function setAjaxGroupsSelect2() {
+    const $select = $(this);
+    const allAvailable = $select.data('all-available');
+    const skipGroups = $select.data('skip-groups') || [];
+    $select.select2({
+      placeholder: 'Search for a group',
+      multiple: $select.hasClass('multiselect'),
+      minimumInputLength: 0,
+      ajax: {
+        url: Api.buildUrl(Api.groupsPath),
+        dataType: 'json',
+        quietMillis: 250,
+        transport(params) {
+          return $.ajax(params)
+            .then((data, status, xhr) => {
+              const results = data || [];
 
-window.GroupsSelect = (function() {
-  function GroupsSelect() {
-    $('.ajax-groups-select').each((function(_this) {
-      const self = _this;
-
-      return function(i, select) {
-        var all_available, skip_groups;
-        const $select = $(select);
-        all_available = $select.data('all-available');
-        skip_groups = $select.data('skip-groups') || [];
-
-        $select.select2({
-          placeholder: "Search for a group",
-          multiple: $select.hasClass('multiselect'),
-          minimumInputLength: 0,
-          ajax: {
-            url: Api.buildUrl(Api.groupsPath),
-            dataType: 'json',
-            quietMillis: 250,
-            transport: function (params) {
-              $.ajax(params).then((data, status, xhr) => {
-                const results = data || [];
-
-                const headers = normalizeCRLFHeaders(xhr.getAllResponseHeaders());
-                const currentPage = parseInt(headers['X-PAGE'], 10) || 0;
-                const totalPages = parseInt(headers['X-TOTAL-PAGES'], 10) || 0;
-                const more = currentPage < totalPages;
-
-                return {
-                  results,
-                  pagination: {
-                    more,
-                  },
-                };
-              }).then(params.success).fail(params.error);
-            },
-            data: function (search, page) {
-              return {
-                search,
-                page,
-                per_page: GroupsSelect.PER_PAGE,
-                all_available,
-              };
-            },
-            results: function (data, page) {
-              if (data.length) return { results: [] };
-
-              const groups = data.length ? data : data.results || [];
-              const more = data.pagination ? data.pagination.more : false;
-              const results = groups.filter(group => skip_groups.indexOf(group.id) === -1);
+              const headers = normalizeCRLFHeaders(xhr.getAllResponseHeaders());
+              const currentPage = parseInt(headers['X-PAGE'], 10) || 0;
+              const totalPages = parseInt(headers['X-TOTAL-PAGES'], 10) || 0;
+              const more = currentPage < totalPages;
 
               return {
                 results,
-                page,
-                more,
+                pagination: {
+                  more,
+                },
               };
-            },
-          },
-          initSelection: function(element, callback) {
-            var id;
-            id = $(element).val();
-            if (id !== "") {
-              return Api.group(id, callback);
-            }
-          },
-          formatResult: function() {
-            var args;
-            args = 1 <= arguments.length ? slice.call(arguments, 0) : [];
-            return self.formatResult.apply(self, args);
-          },
-          formatSelection: function() {
-            var args;
-            args = 1 <= arguments.length ? slice.call(arguments, 0) : [];
-            return self.formatSelection.apply(self, args);
-          },
-          dropdownCssClass: "ajax-groups-dropdown select2-infinite",
-          // we do not want to escape markup since we are displaying html in results
-          escapeMarkup: function(m) {
-            return m;
-          }
-        });
-
-        self.dropdown = document.querySelector('.select2-infinite .select2-results');
-
-        $select.on('select2-loaded', self.forceOverflow.bind(self));
-      };
-    })(this));
-  }
-
-  GroupsSelect.prototype.formatResult = function(group) {
-    var avatar;
-    if (group.avatar_url) {
-      avatar = group.avatar_url;
-    } else {
-      avatar = gon.default_avatar_url;
-    }
-    return "<div class='group-result'> <div class='group-name'>" + group.full_name + "</div> <div class='group-path'>" + group.full_path + "</div> </div>";
-  };
-
-  GroupsSelect.prototype.formatSelection = function(group) {
-    return group.full_name;
-  };
+            })
+            .then(params.success)
+            .fail(params.error);
+        },
+        data(search, page) {
+          return {
+            search,
+            page,
+            per_page: window.GROUP_SELECT_PER_PAGE,
+            all_available: allAvailable,
+          };
+        },
+        results(data, page) {
+          if (data.length) return { results: [] };
 
-  GroupsSelect.prototype.forceOverflow = function (e) {
-    this.dropdown.style.height = `${Math.floor(this.dropdown.scrollHeight)}px`;
-  };
+          const groups = data.length ? data : data.results || [];
+          const more = data.pagination ? data.pagination.more : false;
+          const results = groups.filter(group => skipGroups.indexOf(group.id) === -1);
 
-  GroupsSelect.PER_PAGE = 20;
+          return {
+            results,
+            page,
+            more,
+          };
+        },
+      },
+      // eslint-disable-next-line consistent-return
+      initSelection(element, callback) {
+        const id = $(element).val();
+        if (id !== '') {
+          return Api.group(id, callback);
+        }
+      },
+      formatResult(object) {
+        return `<div class='group-result'> <div class='group-name'>${object.full_name}</div> <div class='group-path'>${object.full_path}</div> </div>`;
+      },
+      formatSelection(object) {
+        return object.full_name;
+      },
+      dropdownCssClass: 'ajax-groups-dropdown select2-infinite',
+      // we do not want to escape markup since we are displaying html in results
+      escapeMarkup(m) {
+        return m;
+      },
+    });
 
-  return GroupsSelect;
-})();
+    $select.on('select2-loaded', () => {
+      const dropdown = document.querySelector('.select2-infinite .select2-results');
+      dropdown.style.height = `${Math.floor(dropdown.scrollHeight)}px`;
+    });
+  });
+}
diff --git a/app/assets/javascripts/header.js b/app/assets/javascripts/header.js
index ea2e2205077..33a352e158a 100644
--- a/app/assets/javascripts/header.js
+++ b/app/assets/javascripts/header.js
@@ -7,10 +7,12 @@ import { highCountTrim } from '~/lib/utils/text_utility';
  * @param {jQuery.Event} e
  * @param {String} count
  */
-$(document).on('todo:toggle', (e, count) => {
-  const parsedCount = parseInt(count, 10);
-  const $todoPendingCount = $('.todos-count');
+export default function initTodoToggle() {
+  $(document).on('todo:toggle', (e, count) => {
+    const parsedCount = parseInt(count, 10);
+    const $todoPendingCount = $('.todos-count');
 
-  $todoPendingCount.text(highCountTrim(parsedCount));
-  $todoPendingCount.toggleClass('hidden', parsedCount === 0);
-});
+    $todoPendingCount.text(highCountTrim(parsedCount));
+    $todoPendingCount.toggleClass('hidden', parsedCount === 0);
+  });
+}
diff --git a/app/assets/javascripts/importer_status.js b/app/assets/javascripts/importer_status.js
index 5b4ca94ed30..1dc70872d92 100644
--- a/app/assets/javascripts/importer_status.js
+++ b/app/assets/javascripts/importer_status.js
@@ -1,83 +1,81 @@
-/* eslint-disable func-names, space-before-function-paren, wrap-iife, camelcase, no-var, one-var, one-var-declaration-per-line, prefer-template, quotes, object-shorthand, comma-dangle, no-unused-vars, prefer-arrow-callback, no-else-return, vars-on-top, no-new, max-len */
+class ImporterStatus {
+  constructor(jobsUrl, importUrl) {
+    this.jobsUrl = jobsUrl;
+    this.importUrl = importUrl;
+    this.initStatusPage();
+    this.setAutoUpdate();
+  }
 
-(function() {
-  window.ImporterStatus = (function() {
-    function ImporterStatus(jobs_url, import_url) {
-      this.jobs_url = jobs_url;
-      this.import_url = import_url;
-      this.initStatusPage();
-      this.setAutoUpdate();
-    }
+  initStatusPage() {
+    $('.js-add-to-import')
+      .off('click')
+      .on('click', (event) => {
+        const $btn = $(event.currentTarget);
+        const $tr = $btn.closest('tr');
+        const $targetField = $tr.find('.import-target');
+        const $namespaceInput = $targetField.find('.js-select-namespace option:selected');
+        const id = $tr.attr('id').replace('repo_', '');
+        let targetNamespace;
+        let newName;
+        if ($namespaceInput.length > 0) {
+          targetNamespace = $namespaceInput[0].innerHTML;
+          newName = $targetField.find('#path').prop('value');
+          $targetField.empty().append(`${targetNamespace}/${newName}`);
+        }
+        $btn.disable().addClass('is-loading');
 
-    ImporterStatus.prototype.initStatusPage = function() {
-      $('.js-add-to-import').off('click').on('click', (function(_this) {
-        return function(e) {
-          var $btn, $namespace_input, $target_field, $tr, id, target_namespace, newName;
-          $btn = $(e.currentTarget);
-          $tr = $btn.closest('tr');
-          $target_field = $tr.find('.import-target');
-          $namespace_input = $target_field.find('.js-select-namespace option:selected');
-          id = $tr.attr('id').replace('repo_', '');
-          target_namespace = null;
-          newName = null;
-          if ($namespace_input.length > 0) {
-            target_namespace = $namespace_input[0].innerHTML;
-            newName = $target_field.find('#path').prop('value');
-            $target_field.empty().append(target_namespace + "/" + newName);
-          }
-          $btn.disable().addClass('is-loading');
-          return $.post(_this.import_url, {
-            repo_id: id,
-            target_namespace: target_namespace,
-            new_name: newName
-          }, {
-            dataType: 'script'
-          });
-        };
-      })(this));
-      return $('.js-import-all').off('click').on('click', function(e) {
-        var $btn;
-        $btn = $(this);
+        return $.post(this.importUrl, {
+          repo_id: id,
+          target_namespace: targetNamespace,
+          new_name: newName,
+        }, {
+          dataType: 'script',
+        });
+      });
+
+    $('.js-import-all')
+      .off('click')
+      .on('click', function onClickImportAll() {
+        const $btn = $(this);
         $btn.disable().addClass('is-loading');
-        return $('.js-add-to-import').each(function() {
+        return $('.js-add-to-import').each(function triggerAddImport() {
           return $(this).trigger('click');
         });
       });
-    };
+  }
+
+  setAutoUpdate() {
+    return setInterval(() => $.get(this.jobsUrl, data => $.each(data, (i, job) => {
+      const jobItem = $(`#project_${job.id}`);
+      const statusField = jobItem.find('.job-status');
 
-    ImporterStatus.prototype.setAutoUpdate = function() {
-      return setInterval(((function(_this) {
-        return function() {
-          return $.get(_this.jobs_url, function(data) {
-            return $.each(data, function(i, job) {
-              var job_item, status_field;
-              job_item = $("#project_" + job.id);
-              status_field = job_item.find(".job-status");
-              if (job.import_status === 'finished') {
-                job_item.removeClass("active").addClass("success");
-                return status_field.html('<span><i class="fa fa-check"></i> done</span>');
-              } else if (job.import_status === 'scheduled') {
-                return status_field.html("<i class='fa fa-spinner fa-spin'></i> scheduled");
-              } else if (job.import_status === 'started') {
-                return status_field.html("<i class='fa fa-spinner fa-spin'></i> started");
-              } else {
-                return status_field.html(job.import_status);
-              }
-            });
-          });
-        };
-      })(this)), 4000);
-    };
+      const spinner = '<i class="fa fa-spinner fa-spin"></i>';
 
-    return ImporterStatus;
-  })();
+      switch (job.import_status) {
+        case 'finished':
+          jobItem.removeClass('active').addClass('success');
+          statusField.html('<span><i class="fa fa-check"></i> done</span>');
+          break;
+        case 'scheduled':
+          statusField.html(`${spinner} scheduled`);
+          break;
+        case 'started':
+          statusField.html(`${spinner} started`);
+          break;
+        default:
+          statusField.html(job.import_status);
+          break;
+      }
+    })), 4000);
+  }
+}
 
-  $(function() {
-    if ($('.js-importer-status').length) {
-      var jobsImportPath = $('.js-importer-status').data('jobs-import-path');
-      var importPath = $('.js-importer-status').data('import-path');
+// eslint-disable-next-line consistent-return
+export default function initImporterStatus() {
+  const importerStatus = document.querySelector('.js-importer-status');
 
-      new window.ImporterStatus(jobsImportPath, importPath);
-    }
-  });
-}).call(window);
+  if (importerStatus) {
+    const data = importerStatus.dataset;
+    return new ImporterStatus(data.jobsImportPath, data.importPath);
+  }
+}
diff --git a/app/assets/javascripts/init_changes_dropdown.js b/app/assets/javascripts/init_changes_dropdown.js
index f785ed29e6c..1bab7965c19 100644
--- a/app/assets/javascripts/init_changes_dropdown.js
+++ b/app/assets/javascripts/init_changes_dropdown.js
@@ -1,7 +1,7 @@
 import stickyMonitor from './lib/utils/sticky';
 
-export default () => {
-  stickyMonitor(document.querySelector('.js-diff-files-changed'));
+export default (stickyTop) => {
+  stickyMonitor(document.querySelector('.js-diff-files-changed'), stickyTop);
 
   $('.js-diff-stats-dropdown').glDropdown({
     filterable: true,
diff --git a/app/assets/javascripts/init_issuable_sidebar.js b/app/assets/javascripts/init_issuable_sidebar.js
index 32a1a269f9a..1191e0b895e 100644
--- a/app/assets/javascripts/init_issuable_sidebar.js
+++ b/app/assets/javascripts/init_issuable_sidebar.js
@@ -1,7 +1,7 @@
 /* eslint-disable no-new */
 /* global MilestoneSelect */
-/* global LabelsSelect */
-/* global IssuableContext */
+import LabelsSelect from './labels_select';
+import IssuableContext from './issuable_context';
 /* global Sidebar */
 
 import DueDateSelectors from './due_date_select';
diff --git a/app/assets/javascripts/init_legacy_filters.js b/app/assets/javascripts/init_legacy_filters.js
index 1211c2c802c..1b265721581 100644
--- a/app/assets/javascripts/init_legacy_filters.js
+++ b/app/assets/javascripts/init_legacy_filters.js
@@ -1,15 +1,15 @@
 /* eslint-disable no-new */
-/* global LabelsSelect */
+import LabelsSelect from './labels_select';
 /* global MilestoneSelect */
-/* global IssueStatusSelect */
 /* global SubscriptionSelect */
 
 import UsersSelect from './users_select';
+import issueStatusSelect from './issue_status_select';
 
 export default () => {
   new UsersSelect();
   new LabelsSelect();
   new MilestoneSelect();
-  new IssueStatusSelect();
+  issueStatusSelect();
   new SubscriptionSelect();
 };
diff --git a/app/assets/javascripts/issuable_bulk_update_actions.js b/app/assets/javascripts/issuable_bulk_update_actions.js
index eb15949603f..b124fafec70 100644
--- a/app/assets/javascripts/issuable_bulk_update_actions.js
+++ b/app/assets/javascripts/issuable_bulk_update_actions.js
@@ -1,5 +1,4 @@
 /* eslint-disable comma-dangle, quotes, consistent-return, func-names, array-callback-return, space-before-function-paren, prefer-arrow-callback, max-len, no-unused-expressions, no-sequences, no-underscore-dangle, no-unused-vars, no-param-reassign */
-/* global IssuableIndex */
 import _ from 'underscore';
 import Flash from './flash';
 
diff --git a/app/assets/javascripts/issuable_bulk_update_sidebar.js b/app/assets/javascripts/issuable_bulk_update_sidebar.js
index 0e8a0519928..af6358953cf 100644
--- a/app/assets/javascripts/issuable_bulk_update_sidebar.js
+++ b/app/assets/javascripts/issuable_bulk_update_sidebar.js
@@ -1,10 +1,12 @@
 /* eslint-disable class-methods-use-this, no-new */
-/* global LabelsSelect */
 /* global MilestoneSelect */
-/* global IssueStatusSelect */
 /* global SubscriptionSelect */
 
 import IssuableBulkUpdateActions from './issuable_bulk_update_actions';
+import './milestone_select';
+import issueStatusSelect from './issue_status_select';
+import './subscription_select';
+import LabelsSelect from './labels_select';
 
 const HIDDEN_CLASS = 'hidden';
 const DISABLED_CONTENT_CLASS = 'disabled-content';
@@ -45,7 +47,7 @@ export default class IssuableBulkUpdateSidebar {
   initDropdowns() {
     new LabelsSelect();
     new MilestoneSelect();
-    new IssueStatusSelect();
+    issueStatusSelect();
     new SubscriptionSelect();
   }
 
diff --git a/app/assets/javascripts/issuable_context.js b/app/assets/javascripts/issuable_context.js
index 73791edaebb..da99394ff90 100644
--- a/app/assets/javascripts/issuable_context.js
+++ b/app/assets/javascripts/issuable_context.js
@@ -1,33 +1,32 @@
-/* eslint-disable func-names, space-before-function-paren, wrap-iife, no-new, comma-dangle, quotes, prefer-arrow-callback, consistent-return, one-var, no-var, one-var-declaration-per-line, no-underscore-dangle, max-len */
 import Cookies from 'js-cookie';
 import bp from './breakpoints';
 import UsersSelect from './users_select';
 
-const PARTICIPANTS_ROW_COUNT = 7;
-
-(function() {
-  this.IssuableContext = (function() {
-    function IssuableContext(currentUser) {
-      this.initParticipants();
-      new UsersSelect(currentUser);
-      $('select.select2').select2({
-        width: 'resolve',
-        dropdownAutoWidth: true
-      });
-      $(".issuable-sidebar .inline-update").on("change", "select", function() {
-        return $(this).submit();
-      });
-      $(".issuable-sidebar .inline-update").on("change", ".js-assignee", function() {
-        return $(this).submit();
-      });
-      $(document).off('click', '.issuable-sidebar .dropdown-content a').on('click', '.issuable-sidebar .dropdown-content a', function(e) {
-        return e.preventDefault();
-      });
-      $(document).off('click', '.edit-link').on('click', '.edit-link', function(e) {
-        var $block, $selectbox;
+export default class IssuableContext {
+  constructor(currentUser) {
+    this.userSelect = new UsersSelect(currentUser);
+
+    $('select.select2').select2({
+      width: 'resolve',
+      dropdownAutoWidth: true,
+    });
+
+    $('.issuable-sidebar .inline-update').on('change', 'select', function onClickSelect() {
+      return $(this).submit();
+    });
+    $('.issuable-sidebar .inline-update').on('change', '.js-assignee', function onClickAssignee() {
+      return $(this).submit();
+    });
+    $(document)
+      .off('click', '.issuable-sidebar .dropdown-content a')
+      .on('click', '.issuable-sidebar .dropdown-content a', e => e.preventDefault());
+
+    $(document)
+      .off('click', '.edit-link')
+      .on('click', '.edit-link', function onClickEdit(e) {
         e.preventDefault();
-        $block = $(this).parents('.block');
-        $selectbox = $block.find('.selectbox');
+        const $block = $(this).parents('.block');
+        const $selectbox = $block.find('.selectbox');
         if ($selectbox.is(':visible')) {
           $selectbox.hide();
           $block.find('.value').show();
@@ -35,46 +34,18 @@ const PARTICIPANTS_ROW_COUNT = 7;
           $selectbox.show();
           $block.find('.value').hide();
         }
-        if ($selectbox.is(':visible')) {
-          return setTimeout(function() {
-            return $block.find('.dropdown-menu-toggle').trigger('click');
-          }, 0);
-        }
-      });
-      window.addEventListener('beforeunload', function() {
-        // collapsed_gutter cookie hides the sidebar
-        var bpBreakpoint = bp.getBreakpointSize();
-        if (bpBreakpoint === 'xs' || bpBreakpoint === 'sm') {
-          Cookies.set('collapsed_gutter', true);
-        }
-      });
-    }
 
-    IssuableContext.prototype.initParticipants = function() {
-      $(document).on('click', '.js-participants-more', this.toggleHiddenParticipants);
-      return $('.js-participants-author').each(function(i) {
-        if (i >= PARTICIPANTS_ROW_COUNT) {
-          return $(this).addClass('js-participants-hidden').hide();
+        if ($selectbox.is(':visible')) {
+          setTimeout(() => $block.find('.dropdown-menu-toggle').trigger('click'), 0);
         }
       });
-    };
-
-    IssuableContext.prototype.toggleHiddenParticipants = function() {
-      const currentText = $(this).text().trim();
-      const lessText = $(this).data('less-text');
-      const originalText = $(this).data('original-text');
 
-      if (currentText === originalText) {
-        $(this).text(lessText);
-
-        if (gl.lazyLoader) gl.lazyLoader.loadCheck();
-      } else {
-        $(this).text(originalText);
+    window.addEventListener('beforeunload', () => {
+      // collapsed_gutter cookie hides the sidebar
+      const bpBreakpoint = bp.getBreakpointSize();
+      if (bpBreakpoint === 'xs' || bpBreakpoint === 'sm') {
+        Cookies.set('collapsed_gutter', true);
       }
-
-      $('.js-participants-hidden').toggle();
-    };
-
-    return IssuableContext;
-  })();
-}).call(window);
+    });
+  }
+}
diff --git a/app/assets/javascripts/issuable_form.js b/app/assets/javascripts/issuable_form.js
index cd2562bc6a9..57dcaa0e1ac 100644
--- a/app/assets/javascripts/issuable_form.js
+++ b/app/assets/javascripts/issuable_form.js
@@ -1,110 +1,107 @@
-/* eslint-disable func-names, space-before-function-paren, no-var, prefer-rest-params, wrap-iife, no-use-before-define, no-useless-escape, no-new, quotes, object-shorthand, no-unused-vars, comma-dangle, no-alert, consistent-return, no-else-return, prefer-template, one-var, one-var-declaration-per-line, curly, max-len */
+/* eslint-disable func-names, prefer-rest-params, wrap-iife, no-use-before-define, no-useless-escape, no-new, object-shorthand, no-unused-vars, comma-dangle, no-alert, consistent-return, no-else-return, prefer-template, one-var, one-var-declaration-per-line, curly, max-len */
 /* global GitLab */
-/* global Autosave */
 
 import Pikaday from 'pikaday';
+import Autosave from './autosave';
 import UsersSelect from './users_select';
 import GfmAutoComplete from './gfm_auto_complete';
 import ZenMode from './zen_mode';
 import { parsePikadayDate, pikadayToString } from './lib/utils/datefix';
 
-(function() {
-  this.IssuableForm = (function() {
-    IssuableForm.prototype.wipRegex = /^\s*(\[WIP\]\s*|WIP:\s*|WIP\s+)+\s*/i;
-
-    function IssuableForm(form) {
-      var $issuableDueDate, calendar;
-      this.form = form;
-      this.toggleWip = this.toggleWip.bind(this);
-      this.renderWipExplanation = this.renderWipExplanation.bind(this);
-      this.resetAutosave = this.resetAutosave.bind(this);
-      this.handleSubmit = this.handleSubmit.bind(this);
-      new GfmAutoComplete(gl.GfmAutoComplete && gl.GfmAutoComplete.dataSources).setup();
-      new UsersSelect();
-      new ZenMode();
-      this.titleField = this.form.find("input[name*='[title]']");
-      this.descriptionField = this.form.find("textarea[name*='[description]']");
-      if (!(this.titleField.length && this.descriptionField.length)) {
-        return;
-      }
-      this.initAutosave();
-      this.form.on("submit", this.handleSubmit);
-      this.form.on("click", ".btn-cancel", this.resetAutosave);
-      this.initWip();
-      $issuableDueDate = $('#issuable-due-date');
-      if ($issuableDueDate.length) {
-        calendar = new Pikaday({
-          field: $issuableDueDate.get(0),
-          theme: 'gitlab-theme animate-picker',
-          format: 'yyyy-mm-dd',
-          container: $issuableDueDate.parent().get(0),
-          parse: dateString => parsePikadayDate(dateString),
-          toString: date => pikadayToString(date),
-          onSelect: function(dateText) {
-            $issuableDueDate.val(calendar.toString(dateText));
-          }
-        });
-        calendar.setDate(parsePikadayDate($issuableDueDate.val()));
-      }
+export default class IssuableForm {
+  constructor(form) {
+    this.form = form;
+    this.toggleWip = this.toggleWip.bind(this);
+    this.renderWipExplanation = this.renderWipExplanation.bind(this);
+    this.resetAutosave = this.resetAutosave.bind(this);
+    this.handleSubmit = this.handleSubmit.bind(this);
+    this.wipRegex = /^\s*(\[WIP\]\s*|WIP:\s*|WIP\s+)+\s*/i;
+
+    new GfmAutoComplete(gl.GfmAutoComplete && gl.GfmAutoComplete.dataSources).setup();
+    new UsersSelect();
+    new ZenMode();
+
+    this.titleField = this.form.find('input[name*="[title]"]');
+    this.descriptionField = this.form.find('textarea[name*="[description]"]');
+    if (!(this.titleField.length && this.descriptionField.length)) {
+      return;
     }
 
-    IssuableForm.prototype.initAutosave = function() {
-      new Autosave(this.titleField, [document.location.pathname, document.location.search, "title"]);
-      return new Autosave(this.descriptionField, [document.location.pathname, document.location.search, "description"]);
-    };
-
-    IssuableForm.prototype.handleSubmit = function() {
-      return this.resetAutosave();
-    };
-
-    IssuableForm.prototype.resetAutosave = function() {
-      this.titleField.data("autosave").reset();
-      return this.descriptionField.data("autosave").reset();
-    };
-
-    IssuableForm.prototype.initWip = function() {
-      this.$wipExplanation = this.form.find(".js-wip-explanation");
-      this.$noWipExplanation = this.form.find(".js-no-wip-explanation");
-      if (!(this.$wipExplanation.length && this.$noWipExplanation.length)) {
-        return;
-      }
-      this.form.on("click", ".js-toggle-wip", this.toggleWip);
-      this.titleField.on("keyup blur", this.renderWipExplanation);
-      return this.renderWipExplanation();
-    };
-
-    IssuableForm.prototype.workInProgress = function() {
-      return this.wipRegex.test(this.titleField.val());
-    };
-
-    IssuableForm.prototype.renderWipExplanation = function() {
-      if (this.workInProgress()) {
-        this.$wipExplanation.show();
-        return this.$noWipExplanation.hide();
-      } else {
-        this.$wipExplanation.hide();
-        return this.$noWipExplanation.show();
-      }
-    };
-
-    IssuableForm.prototype.toggleWip = function(event) {
-      event.preventDefault();
-      if (this.workInProgress()) {
-        this.removeWip();
-      } else {
-        this.addWip();
-      }
-      return this.renderWipExplanation();
-    };
-
-    IssuableForm.prototype.removeWip = function() {
-      return this.titleField.val(this.titleField.val().replace(this.wipRegex, ""));
-    };
-
-    IssuableForm.prototype.addWip = function() {
-      return this.titleField.val("WIP: " + (this.titleField.val()));
-    };
-
-    return IssuableForm;
-  })();
-}).call(window);
+    this.initAutosave();
+    this.form.on('submit', this.handleSubmit);
+    this.form.on('click', '.btn-cancel', this.resetAutosave);
+    this.initWip();
+
+    const $issuableDueDate = $('#issuable-due-date');
+
+    if ($issuableDueDate.length) {
+      const calendar = new Pikaday({
+        field: $issuableDueDate.get(0),
+        theme: 'gitlab-theme animate-picker',
+        format: 'yyyy-mm-dd',
+        container: $issuableDueDate.parent().get(0),
+        parse: dateString => parsePikadayDate(dateString),
+        toString: date => pikadayToString(date),
+        onSelect: dateText => $issuableDueDate.val(calendar.toString(dateText)),
+      });
+      calendar.setDate(parsePikadayDate($issuableDueDate.val()));
+    }
+  }
+
+  initAutosave() {
+    new Autosave(this.titleField, [document.location.pathname, document.location.search, 'title']);
+    return new Autosave(this.descriptionField, [document.location.pathname, document.location.search, 'description']);
+  }
+
+  handleSubmit() {
+    return this.resetAutosave();
+  }
+
+  resetAutosave() {
+    this.titleField.data('autosave').reset();
+    return this.descriptionField.data('autosave').reset();
+  }
+
+  initWip() {
+    this.$wipExplanation = this.form.find('.js-wip-explanation');
+    this.$noWipExplanation = this.form.find('.js-no-wip-explanation');
+    if (!(this.$wipExplanation.length && this.$noWipExplanation.length)) {
+      return;
+    }
+    this.form.on('click', '.js-toggle-wip', this.toggleWip);
+    this.titleField.on('keyup blur', this.renderWipExplanation);
+    return this.renderWipExplanation();
+  }
+
+  workInProgress() {
+    return this.wipRegex.test(this.titleField.val());
+  }
+
+  renderWipExplanation() {
+    if (this.workInProgress()) {
+      this.$wipExplanation.show();
+      return this.$noWipExplanation.hide();
+    } else {
+      this.$wipExplanation.hide();
+      return this.$noWipExplanation.show();
+    }
+  }
+
+  toggleWip(event) {
+    event.preventDefault();
+    if (this.workInProgress()) {
+      this.removeWip();
+    } else {
+      this.addWip();
+    }
+    return this.renderWipExplanation();
+  }
+
+  removeWip() {
+    return this.titleField.val(this.titleField.val().replace(this.wipRegex, ''));
+  }
+
+  addWip() {
+    this.titleField.val(`WIP: ${(this.titleField.val())}`);
+  }
+}
diff --git a/app/assets/javascripts/issuable_index.js b/app/assets/javascripts/issuable_index.js
index ece0220c927..0b123a11a3b 100644
--- a/app/assets/javascripts/issuable_index.js
+++ b/app/assets/javascripts/issuable_index.js
@@ -1,171 +1,42 @@
-/* eslint-disable no-param-reassign, func-names, no-var, camelcase, no-unused-vars, object-shorthand, space-before-function-paren, no-return-assign, comma-dangle, consistent-return, one-var, one-var-declaration-per-line, quotes, prefer-template, prefer-arrow-callback, wrap-iife, max-len */
-/* global IssuableIndex */
-import _ from 'underscore';
 import IssuableBulkUpdateSidebar from './issuable_bulk_update_sidebar';
 import IssuableBulkUpdateActions from './issuable_bulk_update_actions';
 
-((global) => {
-  var issuable_created;
-
-  issuable_created = false;
-
-  global.IssuableIndex = {
-    init: function(pagePrefix) {
-      IssuableIndex.initTemplates();
-      IssuableIndex.initSearch();
-      IssuableIndex.initBulkUpdate(pagePrefix);
-      IssuableIndex.initResetFilters();
-      IssuableIndex.resetIncomingEmailToken();
-      IssuableIndex.initLabelFilterRemove();
-    },
-    initTemplates: function() {
-      return IssuableIndex.labelRow = _.template('<% _.each(labels, function(label){ %> <span class="label-row btn-group" role="group" aria-label="<%- label.title %>" style="color: <%- label.text_color %>;"> <a href="#" class="btn btn-transparent has-tooltip" style="background-color: <%- label.color %>;" title="<%- label.description %>" data-container="body"> <%- label.title %> </a> <button type="button" class="btn btn-transparent label-remove js-label-filter-remove" style="background-color: <%- label.color %>;" data-label="<%- label.title %>"> <i class="fa fa-times"></i> </button> </span> <% }); %>');
-    },
-    initSearch: function() {
-      const $searchInput = $('#issuable_search');
-
-      IssuableIndex.initSearchState($searchInput);
-
-      // `immediate` param set to false debounces on the `trailing` edge, lets user finish typing
-      const debouncedExecSearch = _.debounce(IssuableIndex.executeSearch, 1000, false);
-
-      $searchInput.off('keyup').on('keyup', debouncedExecSearch);
-
-      // ensures existing filters are preserved when manually submitted
-      $('#issuable_search_form').on('submit', (e) => {
-        e.preventDefault();
-        debouncedExecSearch(e);
-      });
-    },
-    initSearchState: function($searchInput) {
-      const currentSearchVal = $searchInput.val();
-
-      IssuableIndex.searchState = {
-        elem: $searchInput,
-        current: currentSearchVal
-      };
-
-      IssuableIndex.maybeFocusOnSearch();
-    },
-    accessSearchPristine: function(set) {
-      // store reference to previous value to prevent search on non-mutating keyup
-      const state = IssuableIndex.searchState;
-      const currentSearchVal = state.elem.val();
-
-      if (set) {
-        state.current = currentSearchVal;
-      } else {
-        return state.current === currentSearchVal;
-      }
-    },
-    maybeFocusOnSearch: function() {
-      const currentSearchVal = IssuableIndex.searchState.current;
-      if (currentSearchVal && currentSearchVal !== '') {
-        const queryLength = currentSearchVal.length;
-        const $searchInput = IssuableIndex.searchState.elem;
-
-      /* The following ensures that the cursor is initially placed at
-        * the end of search input when focus is applied. It accounts
-        * for differences in browser implementations of `setSelectionRange`
-        * and cursor placement for elements in focus.
-      */
-        $searchInput.focus();
-        if ($searchInput.setSelectionRange) {
-          $searchInput.setSelectionRange(queryLength, queryLength);
-        } else {
-          $searchInput.val(currentSearchVal);
-        }
-      }
-    },
-    executeSearch: function(e) {
-      const $search = $('#issuable_search');
-      const $searchName = $search.attr('name');
-      const $searchValue = $search.val();
-      const $filtersForm = $('.js-filter-form');
-      const $input = $(`input[name='${$searchName}']`, $filtersForm);
-      const isPristine = IssuableIndex.accessSearchPristine();
-
-      if (isPristine) {
-        return;
-      }
-
-      if (!$input.length) {
-        $filtersForm.append(`<input type='hidden' name='${$searchName}' value='${_.escape($searchValue)}'/>`);
-      } else {
-        $input.val($searchValue);
-      }
-
-      IssuableIndex.filterResults($filtersForm);
-    },
-    initLabelFilterRemove: function() {
-      return $(document).off('click', '.js-label-filter-remove').on('click', '.js-label-filter-remove', function(e) {
-        var $button;
-        $button = $(this);
-        // Remove the label input box
-        $('input[name="label_name[]"]').filter(function() {
-          return this.value === $button.data('label');
-        }).remove();
-        // Submit the form to get new data
-        IssuableIndex.filterResults($('.filter-form'));
-      });
-    },
-    filterResults: (function(_this) {
-      return function(form) {
-        var formAction, formData, issuesUrl;
-        formData = form.serializeArray();
-        formData = formData.filter(function(data) {
-          return data.value !== '';
-        });
-        formData = $.param(formData);
-        formAction = form.attr('action');
-        issuesUrl = formAction;
-        issuesUrl += "" + (formAction.indexOf('?') === -1 ? '?' : '&');
-        issuesUrl += formData;
-        return gl.utils.visitUrl(issuesUrl);
-      };
-    })(this),
-    initResetFilters: function() {
-      $('.reset-filters').on('click', function(e) {
-        e.preventDefault();
-        const target = e.target;
-        const $form = $(target).parents('.js-filter-form');
-        const baseIssuesUrl = target.href;
-
-        $form.attr('action', baseIssuesUrl);
-        gl.utils.visitUrl(baseIssuesUrl);
+export default class IssuableIndex {
+  constructor(pagePrefix) {
+    this.initBulkUpdate(pagePrefix);
+    IssuableIndex.resetIncomingEmailToken();
+  }
+  initBulkUpdate(pagePrefix) {
+    const userCanBulkUpdate = $('.issues-bulk-update').length > 0;
+    const alreadyInitialized = !!this.bulkUpdateSidebar;
+
+    if (userCanBulkUpdate && !alreadyInitialized) {
+      IssuableBulkUpdateActions.init({
+        prefixId: pagePrefix,
       });
-    },
-    initBulkUpdate: function(pagePrefix) {
-      const userCanBulkUpdate = $('.issues-bulk-update').length > 0;
-      const alreadyInitialized = !!this.bulkUpdateSidebar;
-
-      if (userCanBulkUpdate && !alreadyInitialized) {
-        IssuableBulkUpdateActions.init({
-          prefixId: pagePrefix,
-        });
-
-        this.bulkUpdateSidebar = new IssuableBulkUpdateSidebar();
-      }
-    },
-    resetIncomingEmailToken: function() {
-      $('.incoming-email-token-reset').on('click', function(e) {
-        e.preventDefault();
 
-        $.ajax({
-          type: 'PUT',
-          url: $('.incoming-email-token-reset').attr('href'),
-          dataType: 'json',
-          success: function(response) {
-            $('#issue_email').val(response.new_issue_address).focus();
-          },
-          beforeSend: function() {
-            $('.incoming-email-token-reset').text('resetting...');
-          },
-          complete: function() {
-            $('.incoming-email-token-reset').text('reset it');
-          }
-        });
-      });
+      this.bulkUpdateSidebar = new IssuableBulkUpdateSidebar();
     }
-  };
-})(window);
+  }
+
+  static resetIncomingEmailToken() {
+    $('.incoming-email-token-reset').on('click', (e) => {
+      e.preventDefault();
+
+      $.ajax({
+        type: 'PUT',
+        url: $('.incoming-email-token-reset').attr('href'),
+        dataType: 'json',
+        success(response) {
+          $('#issue_email').val(response.new_issue_address).focus();
+        },
+        beforeSend() {
+          $('.incoming-email-token-reset').text('resetting...');
+        },
+        complete() {
+          $('.incoming-email-token-reset').text('reset it');
+        },
+      });
+    });
+  }
+}
diff --git a/app/assets/javascripts/issue.js b/app/assets/javascripts/issue.js
index 3fc29f9a661..acd5730cf3c 100644
--- a/app/assets/javascripts/issue.js
+++ b/app/assets/javascripts/issue.js
@@ -6,7 +6,7 @@ import TaskList from './task_list';
 import CreateMergeRequestDropdown from './create_merge_request_dropdown';
 import IssuablesHelper from './helpers/issuables_helper';
 
-class Issue {
+export default class Issue {
   constructor() {
     if ($('a.btn-close').length) {
       this.taskList = new TaskList({
@@ -147,5 +147,3 @@ class Issue {
     });
   }
 }
-
-export default Issue;
diff --git a/app/assets/javascripts/issue_status_select.js b/app/assets/javascripts/issue_status_select.js
index 56cb536dcde..03546f61d1f 100644
--- a/app/assets/javascripts/issue_status_select.js
+++ b/app/assets/javascripts/issue_status_select.js
@@ -1,34 +1,23 @@
-/* eslint-disable func-names, space-before-function-paren, wrap-iife, no-var, quotes, object-shorthand, no-unused-vars, no-shadow, one-var, one-var-declaration-per-line, comma-dangle, max-len */
-(function() {
-  this.IssueStatusSelect = (function() {
-    function IssueStatusSelect() {
-      $('.js-issue-status').each(function(i, el) {
-        var fieldName;
-        fieldName = $(el).data("field-name");
-        return $(el).glDropdown({
-          selectable: true,
-          fieldName: fieldName,
-          toggleLabel: (function(_this) {
-            return function(selected, el, instance) {
-              var $item, label;
-              label = 'Author';
-              $item = instance.dropdown.find('.is-active');
-              if ($item.length) {
-                label = $item.text();
-              }
-              return label;
-            };
-          })(this),
-          clicked: function(options) {
-            return options.e.preventDefault();
-          },
-          id: function(obj, el) {
-            return $(el).data("id");
-          }
-        });
-      });
-    }
-
-    return IssueStatusSelect;
-  })();
-}).call(window);
+export default function issueStatusSelect() {
+  $('.js-issue-status').each((i, el) => {
+    const fieldName = $(el).data('field-name');
+    return $(el).glDropdown({
+      selectable: true,
+      fieldName,
+      toggleLabel(selected, element, instance) {
+        let label = 'Author';
+        const $item = instance.dropdown.find('.is-active');
+        if ($item.length) {
+          label = $item.text();
+        }
+        return label;
+      },
+      clicked(options) {
+        return options.e.preventDefault();
+      },
+      id(obj, element) {
+        return $(element).data('id');
+      },
+    });
+  });
+}
diff --git a/app/assets/javascripts/labels_select.js b/app/assets/javascripts/labels_select.js
index 84602cf9207..9b35efcb499 100644
--- a/app/assets/javascripts/labels_select.js
+++ b/app/assets/javascripts/labels_select.js
@@ -6,474 +6,470 @@ import IssuableBulkUpdateActions from './issuable_bulk_update_actions';
 import DropdownUtils from './filtered_search/dropdown_utils';
 import CreateLabelDropdown from './create_label';
 
-(function() {
-  this.LabelsSelect = (function() {
-    function LabelsSelect(els) {
-      var _this, $els;
-      _this = this;
+export default class LabelsSelect {
+  constructor(els) {
+    var _this, $els;
+    _this = this;
 
-      $els = $(els);
+    $els = $(els);
 
-      if (!els) {
-        $els = $('.js-label-select');
-      }
+    if (!els) {
+      $els = $('.js-label-select');
+    }
 
-      $els.each(function(i, dropdown) {
-        var $block, $colorPreview, $dropdown, $form, $loading, $selectbox, $sidebarCollapsedValue, $value, abilityName, defaultLabel, enableLabelCreateButton, issueURLSplit, issueUpdateURL, labelHTMLTemplate, labelNoneHTMLTemplate, labelUrl, namespacePath, projectPath, saveLabelData, selectedLabel, showAny, showNo, $sidebarLabelTooltip, initialSelected, $toggleText, fieldName, useId, propertyName, showMenuAbove, $container, $dropdownContainer;
-        $dropdown = $(dropdown);
-        $dropdownContainer = $dropdown.closest('.labels-filter');
-        $toggleText = $dropdown.find('.dropdown-toggle-text');
-        namespacePath = $dropdown.data('namespace-path');
-        projectPath = $dropdown.data('project-path');
-        labelUrl = $dropdown.data('labels');
-        issueUpdateURL = $dropdown.data('issueUpdate');
-        selectedLabel = $dropdown.data('selected');
-        if ((selectedLabel != null) && !$dropdown.hasClass('js-multiselect')) {
-          selectedLabel = selectedLabel.split(',');
-        }
-        showNo = $dropdown.data('show-no');
-        showAny = $dropdown.data('show-any');
-        showMenuAbove = $dropdown.data('showMenuAbove');
-        defaultLabel = $dropdown.data('default-label');
-        abilityName = $dropdown.data('ability-name');
-        $selectbox = $dropdown.closest('.selectbox');
-        $block = $selectbox.closest('.block');
-        $form = $dropdown.closest('form, .js-issuable-update');
-        $sidebarCollapsedValue = $block.find('.sidebar-collapsed-icon span');
-        $sidebarLabelTooltip = $block.find('.js-sidebar-labels-tooltip');
-        $value = $block.find('.value');
-        $loading = $block.find('.block-loading').fadeOut();
-        fieldName = $dropdown.data('field-name');
-        useId = $dropdown.is('.js-issuable-form-dropdown, .js-filter-bulk-update, .js-label-sidebar-dropdown');
-        propertyName = useId ? 'id' : 'title';
-        initialSelected = $selectbox
-          .find('input[name="' + $dropdown.data('field-name') + '"]')
-          .map(function () {
-            return this.value;
-          }).get();
-        if (issueUpdateURL != null) {
-          issueURLSplit = issueUpdateURL.split('/');
-        }
-        if (issueUpdateURL) {
-          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>';
-        }
+    $els.each(function(i, dropdown) {
+      var $block, $colorPreview, $dropdown, $form, $loading, $selectbox, $sidebarCollapsedValue, $value, abilityName, defaultLabel, enableLabelCreateButton, issueURLSplit, issueUpdateURL, labelHTMLTemplate, labelNoneHTMLTemplate, labelUrl, namespacePath, projectPath, saveLabelData, selectedLabel, showAny, showNo, $sidebarLabelTooltip, initialSelected, $toggleText, fieldName, useId, propertyName, showMenuAbove, $container, $dropdownContainer;
+      $dropdown = $(dropdown);
+      $dropdownContainer = $dropdown.closest('.labels-filter');
+      $toggleText = $dropdown.find('.dropdown-toggle-text');
+      namespacePath = $dropdown.data('namespace-path');
+      projectPath = $dropdown.data('project-path');
+      labelUrl = $dropdown.data('labels');
+      issueUpdateURL = $dropdown.data('issueUpdate');
+      selectedLabel = $dropdown.data('selected');
+      if ((selectedLabel != null) && !$dropdown.hasClass('js-multiselect')) {
+        selectedLabel = selectedLabel.split(',');
+      }
+      showNo = $dropdown.data('show-no');
+      showAny = $dropdown.data('show-any');
+      showMenuAbove = $dropdown.data('showMenuAbove');
+      defaultLabel = $dropdown.data('default-label');
+      abilityName = $dropdown.data('ability-name');
+      $selectbox = $dropdown.closest('.selectbox');
+      $block = $selectbox.closest('.block');
+      $form = $dropdown.closest('form, .js-issuable-update');
+      $sidebarCollapsedValue = $block.find('.sidebar-collapsed-icon span');
+      $sidebarLabelTooltip = $block.find('.js-sidebar-labels-tooltip');
+      $value = $block.find('.value');
+      $loading = $block.find('.block-loading').fadeOut();
+      fieldName = $dropdown.data('field-name');
+      useId = $dropdown.is('.js-issuable-form-dropdown, .js-filter-bulk-update, .js-label-sidebar-dropdown');
+      propertyName = useId ? 'id' : 'title';
+      initialSelected = $selectbox
+        .find('input[name="' + $dropdown.data('field-name') + '"]')
+        .map(function () {
+          return this.value;
+        }).get();
+      if (issueUpdateURL != null) {
+        issueURLSplit = issueUpdateURL.split('/');
+      }
+      if (issueUpdateURL) {
+        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>';
+      }
 
-        $sidebarLabelTooltip.tooltip();
+      $sidebarLabelTooltip.tooltip();
 
-        if ($dropdown.closest('.dropdown').find('.dropdown-new-label').length) {
-          new CreateLabelDropdown($dropdown.closest('.dropdown').find('.dropdown-new-label'), namespacePath, projectPath);
-        }
+      if ($dropdown.closest('.dropdown').find('.dropdown-new-label').length) {
+        new CreateLabelDropdown($dropdown.closest('.dropdown').find('.dropdown-new-label'), namespacePath, projectPath);
+      }
 
-        saveLabelData = function() {
-          var data, selected;
-          selected = $dropdown.closest('.selectbox').find("input[name='" + fieldName + "']").map(function() {
-            return this.value;
-          }).get();
+      saveLabelData = function() {
+        var data, selected;
+        selected = $dropdown.closest('.selectbox').find("input[name='" + fieldName + "']").map(function() {
+          return this.value;
+        }).get();
 
-          if (_.isEqual(initialSelected, selected)) return;
-          initialSelected = selected;
+        if (_.isEqual(initialSelected, selected)) return;
+        initialSelected = selected;
 
-          data = {};
-          data[abilityName] = {};
-          data[abilityName].label_ids = selected;
-          if (!selected.length) {
-            data[abilityName].label_ids = [''];
+        data = {};
+        data[abilityName] = {};
+        data[abilityName].label_ids = selected;
+        if (!selected.length) {
+          data[abilityName].label_ids = [''];
+        }
+        $loading.removeClass('hidden').fadeIn();
+        $dropdown.trigger('loading.gl.dropdown');
+        return $.ajax({
+          type: 'PUT',
+          url: issueUpdateURL,
+          dataType: 'JSON',
+          data: data
+        }).done(function(data) {
+          var labelCount, template, labelTooltipTitle, labelTitles;
+          $loading.fadeOut();
+          $dropdown.trigger('loaded.gl.dropdown');
+          $selectbox.hide();
+          data.issueURLSplit = issueURLSplit;
+          labelCount = 0;
+          if (data.labels.length) {
+            template = labelHTMLTemplate(data);
+            labelCount = data.labels.length;
           }
-          $loading.removeClass('hidden').fadeIn();
-          $dropdown.trigger('loading.gl.dropdown');
-          return $.ajax({
-            type: 'PUT',
-            url: issueUpdateURL,
-            dataType: 'JSON',
-            data: data
-          }).done(function(data) {
-            var labelCount, template, labelTooltipTitle, labelTitles;
-            $loading.fadeOut();
-            $dropdown.trigger('loaded.gl.dropdown');
-            $selectbox.hide();
-            data.issueURLSplit = issueURLSplit;
-            labelCount = 0;
-            if (data.labels.length) {
-              template = labelHTMLTemplate(data);
-              labelCount = data.labels.length;
-            }
-            else {
-              template = labelNoneHTMLTemplate;
-            }
-            $value.removeAttr('style').html(template);
-            $sidebarCollapsedValue.text(labelCount);
-
-            if (data.labels.length) {
-              labelTitles = data.labels.map(function(label) {
-                return label.title;
-              });
+          else {
+            template = labelNoneHTMLTemplate;
+          }
+          $value.removeAttr('style').html(template);
+          $sidebarCollapsedValue.text(labelCount);
 
-              if (labelTitles.length > 5) {
-                labelTitles = labelTitles.slice(0, 5);
-                labelTitles.push('and ' + (data.labels.length - 5) + ' more');
-              }
+          if (data.labels.length) {
+            labelTitles = data.labels.map(function(label) {
+              return label.title;
+            });
 
-              labelTooltipTitle = labelTitles.join(', ');
-            }
-            else {
-              labelTooltipTitle = '';
-              $sidebarLabelTooltip.tooltip('destroy');
+            if (labelTitles.length > 5) {
+              labelTitles = labelTitles.slice(0, 5);
+              labelTitles.push('and ' + (data.labels.length - 5) + ' more');
             }
 
-            $sidebarLabelTooltip
-              .attr('title', labelTooltipTitle)
-              .tooltip('fixTitle');
+            labelTooltipTitle = labelTitles.join(', ');
+          }
+          else {
+            labelTooltipTitle = '';
+            $sidebarLabelTooltip.tooltip('destroy');
+          }
 
-            $('.has-tooltip', $value).tooltip({
-              container: 'body'
-            });
+          $sidebarLabelTooltip
+            .attr('title', labelTooltipTitle)
+            .tooltip('fixTitle');
+
+          $('.has-tooltip', $value).tooltip({
+            container: 'body'
           });
-        };
-        $dropdown.glDropdown({
-          showMenuAbove: showMenuAbove,
-          data: function(term, callback) {
-            return $.ajax({
-              url: labelUrl
-            }).done(function(data) {
-              data = _.chain(data).groupBy(function(label) {
-                return label.title;
-              }).map(function(label) {
-                var color;
-                color = _.map(label, function(dup) {
-                  return dup.color;
+        });
+      };
+      $dropdown.glDropdown({
+        showMenuAbove: showMenuAbove,
+        data: function(term, callback) {
+          return $.ajax({
+            url: labelUrl
+          }).done(function(data) {
+            data = _.chain(data).groupBy(function(label) {
+              return label.title;
+            }).map(function(label) {
+              var color;
+              color = _.map(label, function(dup) {
+                return dup.color;
+              });
+              return {
+                id: label[0].id,
+                title: label[0].title,
+                color: color,
+                duplicate: color.length > 1
+              };
+            }).value();
+            if ($dropdown.hasClass('js-extra-options')) {
+              var extraData = [];
+              if (showNo) {
+                extraData.unshift({
+                  id: 0,
+                  title: 'No Label'
                 });
-                return {
-                  id: label[0].id,
-                  title: label[0].title,
-                  color: color,
-                  duplicate: color.length > 1
-                };
-              }).value();
-              if ($dropdown.hasClass('js-extra-options')) {
-                var extraData = [];
-                if (showNo) {
-                  extraData.unshift({
-                    id: 0,
-                    title: 'No Label'
-                  });
-                }
-                if (showAny) {
-                  extraData.unshift({
-                    isAny: true,
-                    title: 'Any Label'
-                  });
-                }
-                if (extraData.length) {
-                  extraData.push('divider');
-                  data = extraData.concat(data);
-                }
-              }
-
-              callback(data);
-              if (showMenuAbove) {
-                $dropdown.data('glDropdown').positionMenuAbove();
-              }
-            });
-          },
-          renderRow: function(label, instance) {
-            var $a, $li, color, colorEl, indeterminate, removesAll, selectedClass, spacing, i, marked, dropdownName, dropdownValue;
-            $li = $('<li>');
-            $a = $('<a href="#">');
-            selectedClass = [];
-            removesAll = label.id <= 0 || (label.id == null);
-            if ($dropdown.hasClass('js-filter-bulk-update')) {
-              indeterminate = $dropdown.data('indeterminate') || [];
-              marked = $dropdown.data('marked') || [];
-
-              if (indeterminate.indexOf(label.id) !== -1) {
-                selectedClass.push('is-indeterminate');
               }
-
-              if (marked.indexOf(label.id) !== -1) {
-                // Remove is-indeterminate class if the item will be marked as active
-                i = selectedClass.indexOf('is-indeterminate');
-                if (i !== -1) {
-                  selectedClass.splice(i, 1);
-                }
-                selectedClass.push('is-active');
+              if (showAny) {
+                extraData.unshift({
+                  isAny: true,
+                  title: 'Any Label'
+                });
               }
-            } else {
-              if (this.id(label)) {
-                dropdownName = $dropdown.data('fieldName');
-                dropdownValue = this.id(label).toString().replace(/'/g, '\\\'');
-
-                if ($form.find("input[type='hidden'][name='" + dropdownName + "'][value='" + dropdownValue + "']").length) {
-                  selectedClass.push('is-active');
-                }
+              if (extraData.length) {
+                extraData.push('divider');
+                data = extraData.concat(data);
               }
+            }
 
-              if ($dropdown.hasClass('js-multiselect') && removesAll) {
-                selectedClass.push('dropdown-clear-active');
-              }
+            callback(data);
+            if (showMenuAbove) {
+              $dropdown.data('glDropdown').positionMenuAbove();
             }
-            if (label.duplicate) {
-              color = gl.DropdownUtils.duplicateLabelColor(label.color);
+          });
+        },
+        renderRow: function(label, instance) {
+          var $a, $li, color, colorEl, indeterminate, removesAll, selectedClass, spacing, i, marked, dropdownName, dropdownValue;
+          $li = $('<li>');
+          $a = $('<a href="#">');
+          selectedClass = [];
+          removesAll = label.id <= 0 || (label.id == null);
+          if ($dropdown.hasClass('js-filter-bulk-update')) {
+            indeterminate = $dropdown.data('indeterminate') || [];
+            marked = $dropdown.data('marked') || [];
+
+            if (indeterminate.indexOf(label.id) !== -1) {
+              selectedClass.push('is-indeterminate');
             }
-            else {
-              if (label.color != null) {
-                color = label.color[0];
+
+            if (marked.indexOf(label.id) !== -1) {
+              // Remove is-indeterminate class if the item will be marked as active
+              i = selectedClass.indexOf('is-indeterminate');
+              if (i !== -1) {
+                selectedClass.splice(i, 1);
               }
+              selectedClass.push('is-active');
             }
-            if (color) {
-              colorEl = "<span class='dropdown-label-box' style='background: " + color + "'></span>";
-            }
-            else {
-              colorEl = '';
-            }
-            // We need to identify which items are actually labels
-            if (label.id) {
-              selectedClass.push('label-item');
-              $a.attr('data-label-id', label.id);
-            }
-            $a.addClass(selectedClass.join(' ')).html(colorEl + " " + label.title);
-            // Return generated html
-            return $li.html($a).prop('outerHTML');
-          },
-          search: {
-            fields: ['title']
-          },
-          selectable: true,
-          filterable: true,
-          selected: $dropdown.data('selected') || [],
-          toggleLabel: function(selected, el) {
-            var isSelected = el !== null ? el.hasClass('is-active') : false;
-            var title = selected.title;
-            var selectedLabels = this.selected;
-
-            if (selected.id === 0) {
-              this.selected = [];
-              return 'No Label';
+          } else {
+            if (this.id(label)) {
+              dropdownName = $dropdown.data('fieldName');
+              dropdownValue = this.id(label).toString().replace(/'/g, '\\\'');
+
+              if ($form.find("input[type='hidden'][name='" + dropdownName + "'][value='" + dropdownValue + "']").length) {
+                selectedClass.push('is-active');
+              }
             }
-            else if (isSelected) {
-              this.selected.push(title);
+
+            if ($dropdown.hasClass('js-multiselect') && removesAll) {
+              selectedClass.push('dropdown-clear-active');
             }
-            else {
-              var index = this.selected.indexOf(title);
-              this.selected.splice(index, 1);
+          }
+          if (label.duplicate) {
+            color = gl.DropdownUtils.duplicateLabelColor(label.color);
+          }
+          else {
+            if (label.color != null) {
+              color = label.color[0];
             }
+          }
+          if (color) {
+            colorEl = "<span class='dropdown-label-box' style='background: " + color + "'></span>";
+          }
+          else {
+            colorEl = '';
+          }
+          // We need to identify which items are actually labels
+          if (label.id) {
+            selectedClass.push('label-item');
+            $a.attr('data-label-id', label.id);
+          }
+          $a.addClass(selectedClass.join(' ')).html(colorEl + " " + label.title);
+          // Return generated html
+          return $li.html($a).prop('outerHTML');
+        },
+        search: {
+          fields: ['title']
+        },
+        selectable: true,
+        filterable: true,
+        selected: $dropdown.data('selected') || [],
+        toggleLabel: function(selected, el) {
+          var isSelected = el !== null ? el.hasClass('is-active') : false;
+          var title = selected.title;
+          var selectedLabels = this.selected;
+
+          if (selected.id === 0) {
+            this.selected = [];
+            return 'No Label';
+          }
+          else if (isSelected) {
+            this.selected.push(title);
+          }
+          else {
+            var index = this.selected.indexOf(title);
+            this.selected.splice(index, 1);
+          }
+
+          if (selectedLabels.length === 1) {
+            return selectedLabels;
+          }
+          else if (selectedLabels.length) {
+            return selectedLabels[0] + " +" + (selectedLabels.length - 1) + " more";
+          }
+          else {
+            return defaultLabel;
+          }
+        },
+        fieldName: $dropdown.data('field-name'),
+        id: function(label) {
+          if (label.id <= 0) return label.title;
+
+          if ($dropdown.hasClass('js-issuable-form-dropdown')) {
+            return label.id;
+          }
 
-            if (selectedLabels.length === 1) {
-              return selectedLabels;
+          if ($dropdown.hasClass("js-filter-submit") && (label.isAny == null)) {
+            return label.title;
+          }
+          else {
+            return label.id;
+          }
+        },
+        hidden: function() {
+          var isIssueIndex, isMRIndex, page, selectedLabels;
+          page = $('body').attr('data-page');
+          isIssueIndex = page === 'projects:issues:index';
+          isMRIndex = page === 'projects:merge_requests:index';
+          $selectbox.hide();
+          // display:block overrides the hide-collapse rule
+          $value.removeAttr('style');
+
+          if ($dropdown.hasClass('js-issuable-form-dropdown')) {
+            return;
+          }
+
+          if ($('html').hasClass('issue-boards-page')) {
+            return;
+          }
+          if ($dropdown.hasClass('js-multiselect')) {
+            if ($dropdown.hasClass('js-filter-submit') && (isIssueIndex || isMRIndex)) {
+              selectedLabels = $dropdown.closest('form').find("input:hidden[name='" + ($dropdown.data('fieldName')) + "']");
+              Issuable.filterResults($dropdown.closest('form'));
             }
-            else if (selectedLabels.length) {
-              return selectedLabels[0] + " +" + (selectedLabels.length - 1) + " more";
+            else if ($dropdown.hasClass('js-filter-submit')) {
+              $dropdown.closest('form').submit();
             }
             else {
-              return defaultLabel;
+              if (!$dropdown.hasClass('js-filter-bulk-update')) {
+                saveLabelData();
+              }
             }
-          },
-          fieldName: $dropdown.data('field-name'),
-          id: function(label) {
-            if (label.id <= 0) return label.title;
+          }
+        },
+        multiSelect: $dropdown.hasClass('js-multiselect'),
+        vue: $dropdown.hasClass('js-issue-board-sidebar'),
+        clicked: function(options) {
+          const { $el, e, isMarking } = options;
+          const label = options.selectedObj;
+
+          var isIssueIndex, isMRIndex, page, boardsModel;
+          var fadeOutLoader = () => {
+            $loading.fadeOut();
+          };
 
-            if ($dropdown.hasClass('js-issuable-form-dropdown')) {
-              return label.id;
-            }
+          page = $('body').attr('data-page');
+          isIssueIndex = page === 'projects:issues:index';
+          isMRIndex = page === 'projects:merge_requests:index';
 
-            if ($dropdown.hasClass("js-filter-submit") && (label.isAny == null)) {
-              return label.title;
-            }
-            else {
-              return label.id;
-            }
-          },
-          hidden: function() {
-            var isIssueIndex, isMRIndex, page, selectedLabels;
-            page = $('body').attr('data-page');
-            isIssueIndex = page === 'projects:issues:index';
-            isMRIndex = page === 'projects:merge_requests:index';
-            $selectbox.hide();
-            // display:block overrides the hide-collapse rule
-            $value.removeAttr('style');
-
-            if ($dropdown.hasClass('js-issuable-form-dropdown')) {
-              return;
-            }
+          if ($dropdown.parent().find('.is-active:not(.dropdown-clear-active)').length) {
+            $dropdown.parent()
+              .find('.dropdown-clear-active')
+              .removeClass('is-active');
+          }
 
-            if ($('html').hasClass('issue-boards-page')) {
-              return;
-            }
-            if ($dropdown.hasClass('js-multiselect')) {
-              if ($dropdown.hasClass('js-filter-submit') && (isIssueIndex || isMRIndex)) {
-                selectedLabels = $dropdown.closest('form').find("input:hidden[name='" + ($dropdown.data('fieldName')) + "']");
-                Issuable.filterResults($dropdown.closest('form'));
-              }
-              else if ($dropdown.hasClass('js-filter-submit')) {
-                $dropdown.closest('form').submit();
-              }
-              else {
-                if (!$dropdown.hasClass('js-filter-bulk-update')) {
-                  saveLabelData();
-                }
-              }
-            }
-          },
-          multiSelect: $dropdown.hasClass('js-multiselect'),
-          vue: $dropdown.hasClass('js-issue-board-sidebar'),
-          clicked: function(options) {
-            const { $el, e, isMarking } = options;
-            const label = options.selectedObj;
-
-            var isIssueIndex, isMRIndex, page, boardsModel;
-            var fadeOutLoader = () => {
-              $loading.fadeOut();
-            };
-
-            page = $('body').attr('data-page');
-            isIssueIndex = page === 'projects:issues:index';
-            isMRIndex = page === 'projects:merge_requests:index';
-
-            if ($dropdown.parent().find('.is-active:not(.dropdown-clear-active)').length) {
-              $dropdown.parent()
-                .find('.dropdown-clear-active')
-                .removeClass('is-active');
-            }
+          if ($dropdown.hasClass('js-issuable-form-dropdown')) {
+            return;
+          }
 
-            if ($dropdown.hasClass('js-issuable-form-dropdown')) {
-              return;
-            }
+          if ($dropdown.hasClass('js-filter-bulk-update')) {
+            _this.enableBulkLabelDropdown();
+            _this.setDropdownData($dropdown, isMarking, label.id);
+            return;
+          }
 
-            if ($dropdown.hasClass('js-filter-bulk-update')) {
-              _this.enableBulkLabelDropdown();
-              _this.setDropdownData($dropdown, isMarking, label.id);
-              return;
-            }
+          if ($dropdown.closest('.add-issues-modal').length) {
+            boardsModel = gl.issueBoards.ModalStore.store.filter;
+          }
 
-            if ($dropdown.closest('.add-issues-modal').length) {
-              boardsModel = gl.issueBoards.ModalStore.store.filter;
+          if (boardsModel) {
+            if (label.isAny) {
+              boardsModel['label_name'] = [];
+            } else if ($el.hasClass('is-active')) {
+              boardsModel['label_name'].push(label.title);
             }
 
-            if (boardsModel) {
-              if (label.isAny) {
-                boardsModel['label_name'] = [];
-              } else if ($el.hasClass('is-active')) {
-                boardsModel['label_name'].push(label.title);
-              }
-
-              e.preventDefault();
-              return;
+            e.preventDefault();
+            return;
+          }
+          else if ($dropdown.hasClass('js-filter-submit') && (isIssueIndex || isMRIndex)) {
+            if (!$dropdown.hasClass('js-multiselect')) {
+              selectedLabel = label.title;
+              return Issuable.filterResults($dropdown.closest('form'));
             }
-            else if ($dropdown.hasClass('js-filter-submit') && (isIssueIndex || isMRIndex)) {
-              if (!$dropdown.hasClass('js-multiselect')) {
-                selectedLabel = label.title;
-                return Issuable.filterResults($dropdown.closest('form'));
-              }
+          }
+          else if ($dropdown.hasClass('js-filter-submit')) {
+            return $dropdown.closest('form').submit();
+          }
+          else if ($dropdown.hasClass('js-issue-board-sidebar')) {
+            if ($el.hasClass('is-active')) {
+              gl.issueBoards.BoardsStore.detail.issue.labels.push(new ListLabel({
+                id: label.id,
+                title: label.title,
+                color: label.color[0],
+                textColor: '#fff'
+              }));
             }
-            else if ($dropdown.hasClass('js-filter-submit')) {
-              return $dropdown.closest('form').submit();
+            else {
+              var labels = gl.issueBoards.BoardsStore.detail.issue.labels;
+              labels = labels.filter(function (selectedLabel) {
+                return selectedLabel.id !== label.id;
+              });
+              gl.issueBoards.BoardsStore.detail.issue.labels = labels;
             }
-            else if ($dropdown.hasClass('js-issue-board-sidebar')) {
-              if ($el.hasClass('is-active')) {
-                gl.issueBoards.BoardsStore.detail.issue.labels.push(new ListLabel({
-                  id: label.id,
-                  title: label.title,
-                  color: label.color[0],
-                  textColor: '#fff'
-                }));
-              }
-              else {
-                var labels = gl.issueBoards.BoardsStore.detail.issue.labels;
-                labels = labels.filter(function (selectedLabel) {
-                  return selectedLabel.id !== label.id;
-                });
-                gl.issueBoards.BoardsStore.detail.issue.labels = labels;
-              }
 
-              $loading.fadeIn();
+            $loading.fadeIn();
+
+            gl.issueBoards.BoardsStore.detail.issue.update($dropdown.attr('data-issue-update'))
+              .then(fadeOutLoader)
+              .catch(fadeOutLoader);
+          }
+          else {
+            if ($dropdown.hasClass('js-multiselect')) {
 
-              gl.issueBoards.BoardsStore.detail.issue.update($dropdown.attr('data-issue-update'))
-                .then(fadeOutLoader)
-                .catch(fadeOutLoader);
             }
             else {
-              if ($dropdown.hasClass('js-multiselect')) {
-
-              }
-              else {
-                return saveLabelData();
-              }
+              return saveLabelData();
             }
-          },
-        });
-
-        // Set dropdown data
-        _this.setOriginalDropdownData($dropdownContainer, $dropdown);
+          }
+        },
       });
-      this.bindEvents();
-    }
 
-    LabelsSelect.prototype.bindEvents = function() {
-      return $('body').on('change', '.selected_issue', this.onSelectCheckboxIssue);
-    };
-
-    LabelsSelect.prototype.onSelectCheckboxIssue = function() {
-      if ($('.selected_issue:checked').length) {
-        return;
+      // Set dropdown data
+      _this.setOriginalDropdownData($dropdownContainer, $dropdown);
+    });
+    this.bindEvents();
+  }
+
+  bindEvents() {
+    return $('body').on('change', '.selected_issue', this.onSelectCheckboxIssue);
+  }
+  // eslint-disable-next-line class-methods-use-this
+  onSelectCheckboxIssue() {
+    if ($('.selected_issue:checked').length) {
+      return;
+    }
+    return $('.issues-bulk-update .labels-filter .dropdown-toggle-text').text('Label');
+  }
+  // eslint-disable-next-line class-methods-use-this
+  enableBulkLabelDropdown() {
+    IssuableBulkUpdateActions.willUpdateLabels = true;
+  }
+  // eslint-disable-next-line class-methods-use-this
+  setDropdownData($dropdown, isMarking, value) {
+    var i, markedIds, unmarkedIds, indeterminateIds;
+
+    markedIds = $dropdown.data('marked') || [];
+    unmarkedIds = $dropdown.data('unmarked') || [];
+    indeterminateIds = $dropdown.data('indeterminate') || [];
+
+    if (isMarking) {
+      markedIds.push(value);
+
+      i = indeterminateIds.indexOf(value);
+      if (i > -1) {
+        indeterminateIds.splice(i, 1);
       }
-      return $('.issues-bulk-update .labels-filter .dropdown-toggle-text').text('Label');
-    };
 
-    LabelsSelect.prototype.enableBulkLabelDropdown = function() {
-      IssuableBulkUpdateActions.willUpdateLabels = true;
-    };
-
-    LabelsSelect.prototype.setDropdownData = function($dropdown, isMarking, value) {
-      var i, markedIds, unmarkedIds, indeterminateIds;
-
-      markedIds = $dropdown.data('marked') || [];
-      unmarkedIds = $dropdown.data('unmarked') || [];
-      indeterminateIds = $dropdown.data('indeterminate') || [];
-
-      if (isMarking) {
-        markedIds.push(value);
-
-        i = indeterminateIds.indexOf(value);
-        if (i > -1) {
-          indeterminateIds.splice(i, 1);
-        }
-
-        i = unmarkedIds.indexOf(value);
-        if (i > -1) {
-          unmarkedIds.splice(i, 1);
-        }
-      } else {
-        // If marked item (not common) is unmarked
-        i = markedIds.indexOf(value);
-        if (i > -1) {
-          markedIds.splice(i, 1);
-        }
-
-        // If an indeterminate item is being unmarked
-        if (IssuableBulkUpdateActions.getOriginalIndeterminateIds().indexOf(value) > -1) {
-          unmarkedIds.push(value);
-        }
-
-        // If a marked item is being unmarked
-        // (a marked item could also be a label that is present in all selection)
-        if (IssuableBulkUpdateActions.getOriginalCommonIds().indexOf(value) > -1) {
-          unmarkedIds.push(value);
-        }
+      i = unmarkedIds.indexOf(value);
+      if (i > -1) {
+        unmarkedIds.splice(i, 1);
+      }
+    } else {
+      // If marked item (not common) is unmarked
+      i = markedIds.indexOf(value);
+      if (i > -1) {
+        markedIds.splice(i, 1);
       }
 
-      $dropdown.data('marked', markedIds);
-      $dropdown.data('unmarked', unmarkedIds);
-      $dropdown.data('indeterminate', indeterminateIds);
-    };
+      // If an indeterminate item is being unmarked
+      if (IssuableBulkUpdateActions.getOriginalIndeterminateIds().indexOf(value) > -1) {
+        unmarkedIds.push(value);
+      }
 
-    LabelsSelect.prototype.setOriginalDropdownData = function($container, $dropdown) {
-      var labels = [];
-      $container.find('[name="label_name[]"]').map(function() {
-        return labels.push(this.value);
-      });
-      $dropdown.data('marked', labels);
-    };
+      // If a marked item is being unmarked
+      // (a marked item could also be a label that is present in all selection)
+      if (IssuableBulkUpdateActions.getOriginalCommonIds().indexOf(value) > -1) {
+        unmarkedIds.push(value);
+      }
+    }
 
-    return LabelsSelect;
-  })();
-}).call(window);
+    $dropdown.data('marked', markedIds);
+    $dropdown.data('unmarked', unmarkedIds);
+    $dropdown.data('indeterminate', indeterminateIds);
+  }
+  // eslint-disable-next-line class-methods-use-this
+  setOriginalDropdownData($container, $dropdown) {
+    const labels = [];
+    $container.find('[name="label_name[]"]').map(function() {
+      return labels.push(this.value);
+    });
+    $dropdown.data('marked', labels);
+  }
+}
diff --git a/app/assets/javascripts/layout_nav.js b/app/assets/javascripts/layout_nav.js
index d064a2c0024..a6f82b247e2 100644
--- a/app/assets/javascripts/layout_nav.js
+++ b/app/assets/javascripts/layout_nav.js
@@ -1,7 +1,7 @@
 /* eslint-disable func-names, space-before-function-paren, no-var, prefer-arrow-callback, no-unused-vars, one-var, one-var-declaration-per-line, vars-on-top, max-len */
 import _ from 'underscore';
 import Cookies from 'js-cookie';
-import NewNavSidebar from './new_sidebar';
+import ContextualSidebar from './contextual_sidebar';
 import initFlyOutNav from './fly_out_nav';
 
 (function() {
@@ -51,8 +51,8 @@ import initFlyOutNav from './fly_out_nav';
   });
 
   $(() => {
-    const newNavSidebar = new NewNavSidebar();
-    newNavSidebar.bindEvents();
+    const contextualSidebar = new ContextualSidebar();
+    contextualSidebar.bindEvents();
 
     initFlyOutNav();
   });
diff --git a/app/assets/javascripts/lazy_loader.js b/app/assets/javascripts/lazy_loader.js
index 3d64b121fa7..dbbf1637a47 100644
--- a/app/assets/javascripts/lazy_loader.js
+++ b/app/assets/javascripts/lazy_loader.js
@@ -1,5 +1,3 @@
-/* eslint-disable one-export, one-var, one-var-declaration-per-line */
-
 import _ from 'underscore';
 
 export const placeholderImage = 'data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==';
@@ -21,7 +19,10 @@ export default class LazyLoader {
   }
   searchLazyImages() {
     this.lazyImages = [].slice.call(document.querySelectorAll('.lazy'));
-    this.checkElementsInView();
+
+    if (this.lazyImages.length) {
+      this.checkElementsInView();
+    }
   }
   startContentObserver() {
     const contentNode = document.querySelector(this.observerNode) || document.querySelector('body');
@@ -45,15 +46,13 @@ export default class LazyLoader {
   checkElementsInView() {
     const scrollTop = pageYOffset;
     const visHeight = scrollTop + innerHeight + SCROLL_THRESHOLD;
-    let imgBoundRect, imgTop, imgBound;
 
     // Loading Images which are in the current viewport or close to them
     this.lazyImages = this.lazyImages.filter((selectedImage) => {
       if (selectedImage.getAttribute('data-src')) {
-        imgBoundRect = selectedImage.getBoundingClientRect();
-
-        imgTop = scrollTop + imgBoundRect.top;
-        imgBound = imgTop + imgBoundRect.height;
+        const imgBoundRect = selectedImage.getBoundingClientRect();
+        const imgTop = scrollTop + imgBoundRect.top;
+        const imgBound = imgTop + imgBoundRect.height;
 
         if (scrollTop < imgBound && visHeight > imgTop) {
           LazyLoader.loadImage(selectedImage);
diff --git a/app/assets/javascripts/lib/utils/sticky.js b/app/assets/javascripts/lib/utils/sticky.js
index 64db42701ce..098afcfa1b4 100644
--- a/app/assets/javascripts/lib/utils/sticky.js
+++ b/app/assets/javascripts/lib/utils/sticky.js
@@ -28,14 +28,10 @@ export const isSticky = (el, scrollY, stickyTop, insertPlaceholder) => {
   }
 };
 
-export default (el, insertPlaceholder = true) => {
+export default (el, stickyTop, insertPlaceholder = true) => {
   if (!el) return;
 
-  const computedStyle = window.getComputedStyle(el);
-
-  if (!/sticky/.test(computedStyle.position)) return;
-
-  const stickyTop = parseInt(computedStyle.top, 10);
+  if (typeof CSS === 'undefined' || !(CSS.supports('(position: -webkit-sticky) or (position: sticky)'))) return;
 
   document.addEventListener('scroll', () => isSticky(el, window.scrollY, stickyTop, insertPlaceholder), {
     passive: true,
diff --git a/app/assets/javascripts/logo.js b/app/assets/javascripts/logo.js
index 729baa2e1a7..3688a57937e 100644
--- a/app/assets/javascripts/logo.js
+++ b/app/assets/javascripts/logo.js
@@ -1,7 +1,5 @@
-/* eslint-disable func-names, space-before-function-paren, prefer-arrow-callback */
-
-(function() {
-  window.addEventListener('beforeunload', function() {
+export default function initLogoAnimation() {
+  window.addEventListener('beforeunload', () => {
     $('.tanuki-logo').addClass('animate');
   });
-}).call(window);
+}
diff --git a/app/assets/javascripts/main.js b/app/assets/javascripts/main.js
index 52715fba43f..9117f033c9f 100644
--- a/app/assets/javascripts/main.js
+++ b/app/assets/javascripts/main.js
@@ -12,7 +12,6 @@ import svg4everybody from 'svg4everybody';
 // libraries with import side-effects
 import 'mousetrap';
 import 'mousetrap/plugins/pause/mousetrap-pause';
-import 'vendor/fuzzaldrin-plus';
 
 // expose common libraries as globals (TODO: remove these)
 window.jQuery = jQuery;
@@ -41,7 +40,6 @@ import './behaviors/';
 import './activities';
 import './admin';
 import './aside';
-import './autosave';
 import loadAwardsHandler from './awards_handler';
 import bp from './breakpoints';
 import './commits';
@@ -55,19 +53,12 @@ import './gl_dropdown';
 import './gl_field_error';
 import './gl_field_errors';
 import './gl_form';
-import './groups_select';
-import './header';
-import './importer_status';
-import './issuable_index';
-import './issuable_context';
-import './issuable_form';
-import './issue';
-import './issue_status_select';
-import './labels_select';
+import initTodoToggle from './header';
+import initImporterStatus from './importer_status';
 import './layout_nav';
 import LazyLoader from './lazy_loader';
 import './line_highlighter';
-import './logo';
+import initLogoAnimation from './logo';
 import './merge_request';
 import './merge_request_tabs';
 import './milestone';
@@ -140,6 +131,9 @@ $(function () {
   var fitSidebarForSize;
 
   initBreadcrumbs();
+  initImporterStatus();
+  initTodoToggle();
+  initLogoAnimation();
 
   // Set the default path for all cookies to GitLab's root directory
   Cookies.defaults.path = gon.relative_url_root || '/';
diff --git a/app/assets/javascripts/merge_request_tabs.js b/app/assets/javascripts/merge_request_tabs.js
index 789ccf48190..54c1b7a268e 100644
--- a/app/assets/javascripts/merge_request_tabs.js
+++ b/app/assets/javascripts/merge_request_tabs.js
@@ -67,6 +67,10 @@ import Diff from './diff';
   class MergeRequestTabs {
 
     constructor({ action, setUrl, stubLocation } = {}) {
+      const mergeRequestTabs = document.querySelector('.js-tabs-affix');
+      const navbar = document.querySelector('.navbar-gitlab');
+      const paddingTop = 16;
+
       this.diffsLoaded = false;
       this.pipelinesLoaded = false;
       this.commitsLoaded = false;
@@ -76,6 +80,11 @@ import Diff from './diff';
       this.setCurrentAction = this.setCurrentAction.bind(this);
       this.tabShown = this.tabShown.bind(this);
       this.showTab = this.showTab.bind(this);
+      this.stickyTop = navbar ? navbar.offsetHeight - paddingTop : 0;
+
+      if (mergeRequestTabs) {
+        this.stickyTop += mergeRequestTabs.offsetHeight;
+      }
 
       if (stubLocation) {
         location = stubLocation;
@@ -278,7 +287,7 @@ import Diff from './diff';
           const $container = $('#diffs');
           $container.html(data.html);
 
-          initChangesDropdown();
+          initChangesDropdown(this.stickyTop);
 
           if (typeof gl.diffNotesCompileComponents !== 'undefined') {
             gl.diffNotesCompileComponents();
diff --git a/app/assets/javascripts/notes.js b/app/assets/javascripts/notes.js
index 5a6868be444..705bec23b53 100644
--- a/app/assets/javascripts/notes.js
+++ b/app/assets/javascripts/notes.js
@@ -5,14 +5,14 @@ default-case, prefer-template, consistent-return, no-alert, no-return-assign,
 no-param-reassign, prefer-arrow-callback, no-else-return, comma-dangle, no-new,
 brace-style, no-lonely-if, vars-on-top, no-unused-vars, no-sequences, no-shadow,
 newline-per-chained-call, no-useless-escape, class-methods-use-this */
-/* global Autosave */
+
 /* global ResolveService */
 /* global mrRefreshWidgetUrl */
 
 import $ from 'jquery';
 import _ from 'underscore';
 import Cookies from 'js-cookie';
-import autosize from 'vendor/autosize';
+import Autosize from 'autosize';
 import 'vendor/jquery.caret'; // required by jquery.atwho
 import 'vendor/jquery.atwho';
 import AjaxCache from '~/lib/utils/ajax_cache';
@@ -20,12 +20,12 @@ import Flash from './flash';
 import CommentTypeToggle from './comment_type_toggle';
 import GLForm from './gl_form';
 import loadAwardsHandler from './awards_handler';
-import './autosave';
+import Autosave from './autosave';
 import TaskList from './task_list';
 import { ajaxPost, isInViewport, getPagePath, scrollToElement, isMetaKey } from './lib/utils/common_utils';
 import imageDiffHelper from './image_diff/helpers/index';
 
-window.autosize = autosize;
+window.autosize = Autosize;
 
 function normalizeNewlines(str) {
   return str.replace(/\r\n/g, '\n');
diff --git a/app/assets/javascripts/notes/components/issue_comment_form.vue b/app/assets/javascripts/notes/components/issue_comment_form.vue
index 2ce52e4538a..db8f85759b2 100644
--- a/app/assets/javascripts/notes/components/issue_comment_form.vue
+++ b/app/assets/javascripts/notes/components/issue_comment_form.vue
@@ -1,10 +1,9 @@
 <script>
-  /* global Autosave */
   import { mapActions, mapGetters } from 'vuex';
   import _ from 'underscore';
-  import autosize from 'vendor/autosize';
+  import Autosize from 'autosize';
   import Flash from '../../flash';
-  import '../../autosave';
+  import Autosave from '../../autosave';
   import TaskList from '../../task_list';
   import * as constants from '../constants';
   import eventHub from '../event_hub';
@@ -220,7 +219,7 @@
       },
       resizeTextarea() {
         this.$nextTick(() => {
-          autosize.update(this.$refs.textarea);
+          Autosize.update(this.$refs.textarea);
         });
       },
     },
diff --git a/app/assets/javascripts/notes/components/issue_discussion.vue b/app/assets/javascripts/notes/components/issue_discussion.vue
index baf43190d9e..0f13221b81e 100644
--- a/app/assets/javascripts/notes/components/issue_discussion.vue
+++ b/app/assets/javascripts/notes/components/issue_discussion.vue
@@ -9,8 +9,8 @@
   import issueNoteSignedOutWidget from './issue_note_signed_out_widget.vue';
   import issueNoteEditedText from './issue_note_edited_text.vue';
   import issueNoteForm from './issue_note_form.vue';
-  import placeholderNote from './issue_placeholder_note.vue';
-  import placeholderSystemNote from './issue_placeholder_system_note.vue';
+  import placeholderNote from '../../vue_shared/components/notes/placeholder_note.vue';
+  import placeholderSystemNote from '../../vue_shared/components/notes/placeholder_system_note.vue';
   import autosave from '../mixins/autosave';
 
   export default {
diff --git a/app/assets/javascripts/notes/components/issue_notes_app.vue b/app/assets/javascripts/notes/components/issue_notes_app.vue
index aecd1f957e5..5c9119644e3 100644
--- a/app/assets/javascripts/notes/components/issue_notes_app.vue
+++ b/app/assets/javascripts/notes/components/issue_notes_app.vue
@@ -5,10 +5,10 @@
   import * as constants from '../constants';
   import issueNote from './issue_note.vue';
   import issueDiscussion from './issue_discussion.vue';
-  import issueSystemNote from './issue_system_note.vue';
+  import systemNote from '../../vue_shared/components/notes/system_note.vue';
   import issueCommentForm from './issue_comment_form.vue';
-  import placeholderNote from './issue_placeholder_note.vue';
-  import placeholderSystemNote from './issue_placeholder_system_note.vue';
+  import placeholderNote from '../../vue_shared/components/notes/placeholder_note.vue';
+  import placeholderSystemNote from '../../vue_shared/components/notes/placeholder_system_note.vue';
   import loadingIcon from '../../vue_shared/components/loading_icon.vue';
 
   export default {
@@ -37,7 +37,7 @@
     components: {
       issueNote,
       issueDiscussion,
-      issueSystemNote,
+      systemNote,
       issueCommentForm,
       loadingIcon,
       placeholderNote,
@@ -68,7 +68,7 @@
           }
           return placeholderNote;
         } else if (note.individual_note) {
-          return note.notes[0].system ? issueSystemNote : issueNote;
+          return note.notes[0].system ? systemNote : issueNote;
         }
 
         return issueDiscussion;
diff --git a/app/assets/javascripts/notes/mixins/autosave.js b/app/assets/javascripts/notes/mixins/autosave.js
index 5843b97f225..a008171beda 100644
--- a/app/assets/javascripts/notes/mixins/autosave.js
+++ b/app/assets/javascripts/notes/mixins/autosave.js
@@ -1,5 +1,4 @@
-/* globals Autosave */
-import '../../autosave';
+import Autosave from '../../autosave';
 
 export default {
   methods: {
diff --git a/app/assets/javascripts/project_find_file.js b/app/assets/javascripts/project_find_file.js
index 11f9754780d..19682b20a4a 100644
--- a/app/assets/javascripts/project_find_file.js
+++ b/app/assets/javascripts/project_find_file.js
@@ -1,5 +1,6 @@
 /* eslint-disable func-names, space-before-function-paren, no-var, prefer-rest-params, wrap-iife, quotes, consistent-return, one-var, one-var-declaration-per-line, no-cond-assign, max-len, object-shorthand, no-param-reassign, comma-dangle, prefer-template, no-unused-vars, no-return-assign */
-/* global fuzzaldrinPlus */
+
+import fuzzaldrinPlus from 'fuzzaldrin-plus';
 
 (function() {
   this.ProjectFindFile = (function() {
diff --git a/app/assets/javascripts/project_select.js b/app/assets/javascripts/project_select.js
index fb01390f91c..bffc85e6315 100644
--- a/app/assets/javascripts/project_select.js
+++ b/app/assets/javascripts/project_select.js
@@ -2,13 +2,15 @@
 import Api from './api';
 import ProjectSelectComboButton from './project_select_combo_button';
 
-(function() {
-  this.ProjectSelect = (function() {
+(function () {
+  this.ProjectSelect = (function () {
     function ProjectSelect() {
       $('.ajax-project-select').each(function(i, select) {
         var placeholder;
+        const simpleFilter = $(select).data('simple-filter') || false;
         this.groupId = $(select).data('group-id');
         this.includeGroups = $(select).data('include-groups');
+        this.allProjects = $(select).data('all-projects') || false;
         this.orderBy = $(select).data('order-by') || 'id';
         this.withIssuesEnabled = $(select).data('with-issues-enabled');
         this.withMergeRequestsEnabled = $(select).data('with-merge-requests-enabled');
@@ -21,10 +23,10 @@ import ProjectSelectComboButton from './project_select_combo_button';
         $(select).select2({
           placeholder: placeholder,
           minimumInputLength: 0,
-          query: (function(_this) {
-            return function(query) {
+          query: (function (_this) {
+            return function (query) {
               var finalCallback, projectsCallback;
-              finalCallback = function(projects) {
+              finalCallback = function (projects) {
                 var data;
                 data = {
                   results: projects
@@ -32,9 +34,9 @@ import ProjectSelectComboButton from './project_select_combo_button';
                 return query.callback(data);
               };
               if (_this.includeGroups) {
-                projectsCallback = function(projects) {
+                projectsCallback = function (projects) {
                   var groupsCallback;
-                  groupsCallback = function(groups) {
+                  groupsCallback = function (groups) {
                     var data;
                     data = groups.concat(projects);
                     return finalCallback(data);
@@ -50,23 +52,25 @@ import ProjectSelectComboButton from './project_select_combo_button';
                 return Api.projects(query.term, {
                   order_by: _this.orderBy,
                   with_issues_enabled: _this.withIssuesEnabled,
-                  with_merge_requests_enabled: _this.withMergeRequestsEnabled
+                  with_merge_requests_enabled: _this.withMergeRequestsEnabled,
+                  membership: !_this.allProjects,
                 }, projectsCallback);
               }
             };
           })(this),
           id: function(project) {
+            if (simpleFilter) return project.id;
             return JSON.stringify({
               name: project.name,
               url: project.web_url,
             });
           },
-          text: function(project) {
+          text: function (project) {
             return project.name_with_namespace || project.name;
           },
           dropdownCssClass: "ajax-project-dropdown"
         });
-
+        if (simpleFilter) return select;
         return new ProjectSelectComboButton(select);
       });
     }
diff --git a/app/assets/javascripts/repo/components/new_branch_form.vue b/app/assets/javascripts/repo/components/new_branch_form.vue
index eac43e692b0..ba7090e4a9d 100644
--- a/app/assets/javascripts/repo/components/new_branch_form.vue
+++ b/app/assets/javascripts/repo/components/new_branch_form.vue
@@ -1,18 +1,12 @@
 <script>
+  import { mapState, mapActions } from 'vuex';
   import flash, { hideFlash } from '../../flash';
   import loadingIcon from '../../vue_shared/components/loading_icon.vue';
-  import eventHub from '../event_hub';
 
   export default {
     components: {
       loadingIcon,
     },
-    props: {
-      currentBranch: {
-        type: String,
-        required: true,
-      },
-    },
     data() {
       return {
         branchName: '',
@@ -20,11 +14,17 @@
       };
     },
     computed: {
+      ...mapState([
+        'currentBranch',
+      ]),
       btnDisabled() {
         return this.loading || this.branchName === '';
       },
     },
     methods: {
+      ...mapActions([
+        'createNewBranch',
+      ]),
       toggleDropdown() {
         this.$dropdown.dropdown('toggle');
       },
@@ -38,19 +38,21 @@
           hideFlash(flashEl, false);
         }
 
-        eventHub.$emit('createNewBranch', this.branchName);
-      },
-      showErrorMessage(message) {
-        this.loading = false;
-        flash(message, 'alert', this.$el);
-      },
-      createdNewBranch(newBranchName) {
-        this.loading = false;
-        this.branchName = '';
+        this.createNewBranch(this.branchName)
+          .then(() => {
+            this.loading = false;
+            this.branchName = '';
 
-        if (this.dropdownText) {
-          this.dropdownText.textContent = newBranchName;
-        }
+            if (this.dropdownText) {
+              this.dropdownText.textContent = this.currentBranch;
+            }
+
+            this.toggleDropdown();
+          })
+          .catch(res => res.json().then((data) => {
+            this.loading = false;
+            flash(data.message, 'alert', this.$el);
+          }));
       },
     },
     created() {
@@ -59,15 +61,6 @@
 
       // text element is outside Vue app
       this.dropdownText = document.querySelector('.project-refs-form .dropdown-toggle-text');
-
-      eventHub.$on('createNewBranchSuccess', this.createdNewBranch);
-      eventHub.$on('createNewBranchError', this.showErrorMessage);
-      eventHub.$on('toggleNewBranchDropdown', this.toggleDropdown);
-    },
-    destroyed() {
-      eventHub.$off('createNewBranchSuccess', this.createdNewBranch);
-      eventHub.$off('toggleNewBranchDropdown', this.toggleDropdown);
-      eventHub.$off('createNewBranchError', this.showErrorMessage);
     },
   };
 </script>
diff --git a/app/assets/javascripts/repo/components/new_dropdown/index.vue b/app/assets/javascripts/repo/components/new_dropdown/index.vue
new file mode 100644
index 00000000000..a5ee4f71281
--- /dev/null
+++ b/app/assets/javascripts/repo/components/new_dropdown/index.vue
@@ -0,0 +1,84 @@
+<script>
+  import { mapState } from 'vuex';
+  import newModal from './modal.vue';
+  import upload from './upload.vue';
+
+  export default {
+    components: {
+      newModal,
+      upload,
+    },
+    data() {
+      return {
+        openModal: false,
+        modalType: '',
+      };
+    },
+    computed: {
+      ...mapState([
+        'path',
+      ]),
+    },
+    methods: {
+      createNewItem(type) {
+        this.modalType = type;
+        this.toggleModalOpen();
+      },
+      toggleModalOpen() {
+        this.openModal = !this.openModal;
+      },
+    },
+  };
+</script>
+
+<template>
+  <div>
+    <ul class="breadcrumb repo-breadcrumb">
+      <li class="dropdown">
+        <button
+          type="button"
+          class="btn btn-default dropdown-toggle add-to-tree"
+          data-toggle="dropdown"
+          aria-label="Create new file or directory"
+        >
+          <i
+            class="fa fa-plus"
+            aria-hidden="true"
+          >
+          </i>
+        </button>
+        <ul class="dropdown-menu">
+          <li>
+            <a
+              href="#"
+              role="button"
+              @click.prevent="createNewItem('blob')"
+            >
+              {{ __('New file') }}
+            </a>
+          </li>
+          <li>
+            <upload
+              :path="path"
+            />
+          </li>
+          <li>
+            <a
+              href="#"
+              role="button"
+              @click.prevent="createNewItem('tree')"
+            >
+              {{ __('New directory') }}
+            </a>
+          </li>
+        </ul>
+      </li>
+    </ul>
+    <new-modal
+      v-if="openModal"
+      :type="modalType"
+      :path="path"
+      @toggle="toggleModalOpen"
+    />
+  </div>
+</template>
diff --git a/app/assets/javascripts/repo/components/new_dropdown/modal.vue b/app/assets/javascripts/repo/components/new_dropdown/modal.vue
new file mode 100644
index 00000000000..ac1f613bb71
--- /dev/null
+++ b/app/assets/javascripts/repo/components/new_dropdown/modal.vue
@@ -0,0 +1,98 @@
+<script>
+  import { mapActions } from 'vuex';
+  import { __ } from '../../../locale';
+  import popupDialog from '../../../vue_shared/components/popup_dialog.vue';
+
+  export default {
+    props: {
+      type: {
+        type: String,
+        required: true,
+      },
+      path: {
+        type: String,
+        required: true,
+      },
+    },
+    data() {
+      return {
+        entryName: this.path !== '' ? `${this.path}/` : '',
+      };
+    },
+    components: {
+      popupDialog,
+    },
+    methods: {
+      ...mapActions([
+        'createTempEntry',
+      ]),
+      createEntryInStore() {
+        this.createTempEntry({
+          name: this.entryName.replace(new RegExp(`^${this.path}/`), ''),
+          type: this.type,
+        });
+
+        this.toggleModalOpen();
+      },
+      toggleModalOpen() {
+        this.$emit('toggle');
+      },
+    },
+    computed: {
+      modalTitle() {
+        if (this.type === 'tree') {
+          return __('Create new directory');
+        }
+
+        return __('Create new file');
+      },
+      buttonLabel() {
+        if (this.type === 'tree') {
+          return __('Create directory');
+        }
+
+        return __('Create file');
+      },
+      formLabelName() {
+        if (this.type === 'tree') {
+          return __('Directory name');
+        }
+
+        return __('File name');
+      },
+    },
+    mounted() {
+      this.$refs.fieldName.focus();
+    },
+  };
+</script>
+
+<template>
+  <popup-dialog
+    :title="modalTitle"
+    :primary-button-label="buttonLabel"
+    kind="success"
+    @toggle="toggleModalOpen"
+    @submit="createEntryInStore"
+  >
+    <form
+      class="form-horizontal"
+      slot="body"
+      @submit.prevent="createEntryInStore"
+    >
+      <fieldset class="form-group append-bottom-0">
+        <label class="label-light col-sm-3">
+          {{ formLabelName }}
+        </label>
+        <div class="col-sm-9">
+          <input
+            type="text"
+            class="form-control"
+            v-model="entryName"
+            ref="fieldName"
+          />
+        </div>
+      </fieldset>
+    </form>
+  </popup-dialog>
+</template>
diff --git a/app/assets/javascripts/repo/components/new_dropdown/upload.vue b/app/assets/javascripts/repo/components/new_dropdown/upload.vue
new file mode 100644
index 00000000000..14ad32f4ae0
--- /dev/null
+++ b/app/assets/javascripts/repo/components/new_dropdown/upload.vue
@@ -0,0 +1,68 @@
+<script>
+  import { mapActions } from 'vuex';
+
+  export default {
+    props: {
+      path: {
+        type: String,
+        required: true,
+      },
+    },
+    methods: {
+      ...mapActions([
+        'createTempEntry',
+      ]),
+      createFile(target, file, isText) {
+        const { name } = file;
+        let { result } = target;
+
+        if (!isText) {
+          result = result.split('base64,')[1];
+        }
+
+        this.createTempEntry({
+          name,
+          type: 'blob',
+          content: result,
+          base64: !isText,
+        });
+      },
+      readFile(file) {
+        const reader = new FileReader();
+        const isText = file.type.match(/text.*/) !== null;
+
+        reader.addEventListener('load', e => this.createFile(e.target, file, isText), { once: true });
+
+        if (isText) {
+          reader.readAsText(file);
+        } else {
+          reader.readAsDataURL(file);
+        }
+      },
+      openFile() {
+        Array.from(this.$refs.fileUpload.files).forEach(file => this.readFile(file));
+      },
+    },
+    mounted() {
+      this.$refs.fileUpload.addEventListener('change', this.openFile);
+    },
+    beforeDestroy() {
+      this.$refs.fileUpload.removeEventListener('change', this.openFile);
+    },
+  };
+</script>
+
+<template>
+  <label
+    role="button"
+    class="menu-item"
+  >
+    {{ __('Upload file') }}
+    <input
+      id="file-upload"
+      type="file"
+      class="hidden"
+      ref="fileUpload"
+    />
+  </label>
+</template>
diff --git a/app/assets/javascripts/repo/components/repo.vue b/app/assets/javascripts/repo/components/repo.vue
index 6310bdb3270..98117802016 100644
--- a/app/assets/javascripts/repo/components/repo.vue
+++ b/app/assets/javascripts/repo/components/repo.vue
@@ -1,98 +1,59 @@
 <script>
+import { mapState, mapGetters } from 'vuex';
 import RepoSidebar from './repo_sidebar.vue';
 import RepoCommitSection from './repo_commit_section.vue';
 import RepoTabs from './repo_tabs.vue';
 import RepoFileButtons from './repo_file_buttons.vue';
 import RepoPreview from './repo_preview.vue';
-import RepoMixin from '../mixins/repo_mixin';
-import PopupDialog from '../../vue_shared/components/popup_dialog.vue';
-import Store from '../stores/repo_store';
-import Helper from '../helpers/repo_helper';
-import Service from '../services/repo_service';
-import MonacoLoaderHelper from '../helpers/monaco_loader_helper';
-import eventHub from '../event_hub';
+import repoEditor from './repo_editor.vue';
 
 export default {
-  data() {
-    return Store;
+  computed: {
+    ...mapState([
+      'currentBlobView',
+    ]),
+    ...mapGetters([
+      'isCollapsed',
+      'changedFiles',
+    ]),
   },
-  mixins: [RepoMixin],
   components: {
     RepoSidebar,
     RepoTabs,
     RepoFileButtons,
-    'repo-editor': MonacoLoaderHelper.repoEditorLoader,
+    repoEditor,
     RepoCommitSection,
-    PopupDialog,
     RepoPreview,
   },
-  created() {
-    eventHub.$on('createNewBranch', this.createNewBranch);
-  },
   mounted() {
-    Helper.getContent().catch(Helper.loadingError);
-  },
-  destroyed() {
-    eventHub.$off('createNewBranch', this.createNewBranch);
-  },
-  methods: {
-    getCurrentLocation() {
-      return location.href;
-    },
-    toggleDialogOpen(toggle) {
-      this.dialog.open = toggle;
-    },
-
-    dialogSubmitted(status) {
-      this.toggleDialogOpen(false);
-      this.dialog.status = status;
-    },
-    toggleBlobView: Store.toggleBlobView,
-    createNewBranch(branch) {
-      Service.createBranch({
-        branch,
-        ref: Store.currentBranch,
-      }).then((res) => {
-        const newBranchName = res.data.name;
-        const newUrl = this.getCurrentLocation().replace(Store.currentBranch, newBranchName);
-
-        Store.currentBranch = newBranchName;
-
-        history.pushState({ key: Helper.key }, '', newUrl);
+    const returnValue = 'Are you sure you want to lose unsaved changes?';
+    window.onbeforeunload = (e) => {
+      if (!this.changedFiles.length) return undefined;
 
-        eventHub.$emit('createNewBranchSuccess', newBranchName);
-        eventHub.$emit('toggleNewBranchDropdown');
-      }).catch((err) => {
-        eventHub.$emit('createNewBranchError', err.response.data.message);
+      Object.assign(e, {
+        returnValue,
       });
-    },
+      return returnValue;
+    };
   },
 };
 </script>
 
 <template>
   <div class="repository-view">
-    <div class="tree-content-holder" :class="{'tree-content-holder-mini' : isMini}">
+    <div class="tree-content-holder" :class="{'tree-content-holder-mini' : isCollapsed}">
       <repo-sidebar/>
-      <div v-if="isMini"
-      class="panel-right"
-      :class="{'edit-mode': editMode}">
+      <div
+        v-if="isCollapsed"
+        class="panel-right"
+      >
         <repo-tabs/>
         <component
           :is="currentBlobView"
-          class="blob-viewer-container"/>
+        />
         <repo-file-buttons/>
       </div>
     </div>
-    <repo-commit-section/>
-    <popup-dialog
-      v-show="dialog.open"
-      :primary-button-label="__('Discard changes')"
-      kind="warning"
-      :title="__('Are you sure?')"
-      :text="__('Are you sure you want to discard your changes?')"
-      @toggle="toggleDialogOpen"
-      @submit="dialogSubmitted"
-    />
+    <repo-commit-section v-if="changedFiles.length" />
   </div>
 </template>
diff --git a/app/assets/javascripts/repo/components/repo_commit_section.vue b/app/assets/javascripts/repo/components/repo_commit_section.vue
index 185cd90ac06..377e3d65348 100644
--- a/app/assets/javascripts/repo/components/repo_commit_section.vue
+++ b/app/assets/javascripts/repo/components/repo_commit_section.vue
@@ -1,139 +1,100 @@
 <script>
-import Flash from '../../flash';
-import Store from '../stores/repo_store';
-import RepoMixin from '../mixins/repo_mixin';
-import Service from '../services/repo_service';
+import { mapGetters, mapState, mapActions } from 'vuex';
 import PopupDialog from '../../vue_shared/components/popup_dialog.vue';
-import { visitUrl } from '../../lib/utils/url_utility';
+import { n__ } from '../../locale';
 
 export default {
-  mixins: [RepoMixin],
-
-  data() {
-    return Store;
-  },
-
   components: {
     PopupDialog,
   },
-
+  data() {
+    return {
+      showNewBranchDialog: false,
+      submitCommitsLoading: false,
+      startNewMR: false,
+      commitMessage: '',
+    };
+  },
   computed: {
-    showCommitable() {
-      return this.isCommitable && this.changedFiles.length;
-    },
-
-    branchPaths() {
-      return this.changedFiles.map(f => f.path);
-    },
-
-    cantCommitYet() {
+    ...mapState([
+      'currentBranch',
+    ]),
+    ...mapGetters([
+      'changedFiles',
+    ]),
+    commitButtonDisabled() {
       return !this.commitMessage || this.submitCommitsLoading;
     },
-
-    filePluralize() {
-      return this.changedFiles.length > 1 ? 'files' : 'file';
+    commitButtonText() {
+      return n__('Commit %d file', 'Commit %d files', this.changedFiles.length);
     },
   },
-
   methods: {
-    commitToNewBranch(status) {
-      if (status) {
-        this.showNewBranchDialog = false;
-        this.tryCommit(null, true, true);
-      } else {
-        // reset the state
-      }
-    },
+    ...mapActions([
+      'checkCommitStatus',
+      'commitChanges',
+      'getTreeData',
+    ]),
+    makeCommit(newBranch = false) {
+      const createNewBranch = newBranch || this.startNewMR;
 
-    makeCommit(newBranch) {
-      // see https://docs.gitlab.com/ce/api/commits.html#create-a-commit-with-multiple-files-and-actions
-      const commitMessage = this.commitMessage;
-      const actions = this.changedFiles.map(f => ({
-        action: 'update',
-        file_path: f.path,
-        content: f.newContent,
-      }));
-      const branch = newBranch ? `${this.currentBranch}-${this.currentShortHash}` : this.currentBranch;
       const payload = {
-        branch,
-        commit_message: commitMessage,
-        actions,
+        branch: createNewBranch ? `${this.currentBranch}-${new Date().getTime().toString()}` : this.currentBranch,
+        commit_message: this.commitMessage,
+        actions: this.changedFiles.map(f => ({
+          action: f.tempFile ? 'create' : 'update',
+          file_path: f.path,
+          content: f.content,
+          encoding: f.base64 ? 'base64' : 'text',
+        })),
+        start_branch: createNewBranch ? this.currentBranch : undefined,
       };
-      if (newBranch) {
-        payload.start_branch = this.currentBranch;
-      }
+
+      this.showNewBranchDialog = false;
       this.submitCommitsLoading = true;
-      Service.commitFiles(payload)
+
+      this.commitChanges({ payload, newMr: this.startNewMR })
         .then(() => {
-          this.resetCommitState();
-          if (this.startNewMR) {
-            this.redirectToNewMr(branch);
-          } else {
-            this.redirectToBranch(branch);
-          }
+          this.submitCommitsLoading = false;
+          this.getTreeData();
         })
         .catch(() => {
-          Flash('An error occurred while committing your changes');
+          this.submitCommitsLoading = false;
         });
     },
+    tryCommit() {
+      this.submitCommitsLoading = true;
 
-    tryCommit(e, skipBranchCheck = false, newBranch = false) {
-      if (skipBranchCheck) {
-        this.makeCommit(newBranch);
-      } else {
-        Store.setBranchHash()
-          .then(() => {
-            if (Store.branchChanged) {
-              Store.showNewBranchDialog = true;
-              return;
-            }
-            this.makeCommit(newBranch);
-          })
-          .catch(() => {
-            Flash('An error occurred while committing your changes');
-          });
-      }
-    },
-
-    redirectToNewMr(branch) {
-      visitUrl(this.newMrTemplateUrl.replace('{{source_branch}}', branch));
-    },
-
-    redirectToBranch(branch) {
-      visitUrl(this.customBranchURL.replace('{{branch}}', branch));
-    },
-
-    resetCommitState() {
-      this.submitCommitsLoading = false;
-      this.openedFiles = this.openedFiles.map((file) => {
-        const f = file;
-        f.changed = false;
-        return f;
-      });
-      this.changedFiles = [];
-      this.commitMessage = '';
-      this.editMode = false;
-      window.scrollTo(0, 0);
+      this.checkCommitStatus()
+        .then((branchChanged) => {
+          if (branchChanged) {
+            this.showNewBranchDialog = true;
+          } else {
+            this.makeCommit();
+          }
+        })
+        .catch(() => {
+          this.submitCommitsLoading = false;
+        });
     },
   },
 };
 </script>
 
 <template>
-<div
-  v-if="showCommitable"
-  id="commit-area">
+<div id="commit-area">
   <popup-dialog
     v-if="showNewBranchDialog"
     :primary-button-label="__('Create new branch')"
     kind="primary"
     :title="__('Branch has changed')"
     :text="__('This branch has changed since you started editing. Would you like to create a new branch?')"
-    @submit="commitToNewBranch"
+    @toggle="showNewBranchDialog = false"
+    @submit="makeCommit(true)"
   />
   <form
     class="form-horizontal"
-    @submit.prevent="tryCommit">
+    @submit.prevent="tryCommit()">
     <fieldset>
       <div class="form-group">
         <label class="col-md-4 control-label staged-files">
@@ -142,10 +103,10 @@ export default {
         <div class="col-md-6">
           <ul class="list-unstyled changed-files">
             <li
-              v-for="branchPath in branchPaths"
-              :key="branchPath">
+              v-for="(file, index) in changedFiles"
+              :key="index">
               <span class="help-block">
-                {{branchPath}}
+                {{ file.path }}
               </span>
             </li>
           </ul>
@@ -180,9 +141,8 @@ export default {
       </div>
       <div class="col-md-offset-4 col-md-6">
         <button
-          ref="submitCommit"
           type="submit"
-          :disabled="cantCommitYet"
+          :disabled="commitButtonDisabled"
           class="btn btn-success">
           <i
             v-if="submitCommitsLoading"
@@ -191,7 +151,7 @@ export default {
             aria-label="loading">
           </i>
           <span class="commit-summary">
-            Commit {{changedFiles.length}} {{filePluralize}}
+            {{ commitButtonText }}
           </span>
         </button>
       </div>
diff --git a/app/assets/javascripts/repo/components/repo_edit_button.vue b/app/assets/javascripts/repo/components/repo_edit_button.vue
index e6e8b2e5205..6c1bb4b8566 100644
--- a/app/assets/javascripts/repo/components/repo_edit_button.vue
+++ b/app/assets/javascripts/repo/components/repo_edit_button.vue
@@ -1,50 +1,57 @@
 <script>
-import Store from '../stores/repo_store';
-import RepoMixin from '../mixins/repo_mixin';
+import { mapGetters, mapActions, mapState } from 'vuex';
+import popupDialog from '../../vue_shared/components/popup_dialog.vue';
 
 export default {
-  data() {
-    return Store;
+  components: {
+    popupDialog,
   },
-  mixins: [RepoMixin],
   computed: {
+    ...mapState([
+      'editMode',
+      'discardPopupOpen',
+    ]),
+    ...mapGetters([
+      'canEditFile',
+    ]),
     buttonLabel() {
       return this.editMode ? this.__('Cancel edit') : this.__('Edit');
     },
-
-    showButton() {
-      return this.isCommitable &&
-        !this.activeFile.render_error &&
-        !this.binary &&
-        this.openedFiles.length;
-    },
   },
   methods: {
-    editCancelClicked() {
-      if (this.changedFiles.length) {
-        this.dialog.open = true;
-        return;
-      }
-      this.editMode = !this.editMode;
-      Store.toggleBlobView();
-    },
+    ...mapActions([
+      'toggleEditMode',
+      'closeDiscardPopup',
+    ]),
   },
 };
 </script>
 
 <template>
-<button
-  v-if="showButton"
-  class="btn btn-default"
-  type="button"
-  @click.prevent="editCancelClicked">
-  <i
-    v-if="!editMode"
-    class="fa fa-pencil"
-    aria-hidden="true">
-  </i>
-  <span>
-    {{buttonLabel}}
-  </span>
-</button>
+  <div class="editable-mode">
+    <button
+      v-if="canEditFile"
+      class="btn btn-default"
+      type="button"
+      @click.prevent="toggleEditMode()">
+      <i
+        v-if="!editMode"
+        class="fa fa-pencil"
+        aria-hidden="true">
+      </i>
+      <span>
+        {{buttonLabel}}
+      </span>
+    </button>
+    <popup-dialog
+      v-if="discardPopupOpen"
+      class="text-left"
+      :primary-button-label="__('Discard changes')"
+      kind="warning"
+      :title="__('Are you sure?')"
+      :text="__('Are you sure you want to discard your changes?')"
+      @toggle="closeDiscardPopup"
+      @submit="toggleEditMode(true)"
+    />
+  </div>
 </template>
diff --git a/app/assets/javascripts/repo/components/repo_editor.vue b/app/assets/javascripts/repo/components/repo_editor.vue
index 4639bee6d66..0d6729bb99b 100644
--- a/app/assets/javascripts/repo/components/repo_editor.vue
+++ b/app/assets/javascripts/repo/components/repo_editor.vue
@@ -1,124 +1,101 @@
 <script>
 /* global monaco */
-import Store from '../stores/repo_store';
-import Service from '../services/repo_service';
-import Helper from '../helpers/repo_helper';
-
-const RepoEditor = {
-  data() {
-    return Store;
-  },
+import { mapGetters, mapActions } from 'vuex';
+import flash from '../../flash';
+import monacoLoader from '../monaco_loader';
 
+export default {
   destroyed() {
-    if (Helper.monacoInstance) {
-      Helper.monacoInstance.destroy();
+    if (this.monacoInstance) {
+      this.monacoInstance.destroy();
     }
   },
-
   mounted() {
-    Service.getRaw(this.activeFile.raw_path)
-      .then((rawResponse) => {
-        Store.blobRaw = rawResponse.data;
-        Store.activeFile.plain = rawResponse.data;
-
-        const monacoInstance = Helper.monaco.editor.create(this.$el, {
-          model: null,
-          readOnly: false,
-          contextmenu: true,
-          scrollBeyondLastLine: false,
-        });
+    if (this.monaco) {
+      this.initMonaco();
+    } else {
+      monacoLoader(['vs/editor/editor.main'], () => {
+        this.monaco = monaco;
+
+        this.initMonaco();
+      });
+    }
+  },
+  methods: {
+    ...mapActions([
+      'getRawFileData',
+      'changeFileContent',
+    ]),
+    initMonaco() {
+      if (this.monacoInstance) {
+        this.monacoInstance.setModel(null);
+      }
 
-        Helper.monacoInstance = monacoInstance;
+      this.getRawFileData(this.activeFile)
+        .then(() => {
+          if (!this.monacoInstance) {
+            this.monacoInstance = this.monaco.editor.create(this.$el, {
+              model: null,
+              readOnly: false,
+              contextmenu: true,
+              scrollBeyondLastLine: false,
+            });
 
-        this.addMonacoEvents();
+            this.languages = this.monaco.languages.getLanguages();
 
-        this.setupEditor();
-      })
-      .catch(Helper.loadingError);
-  },
+            this.addMonacoEvents();
+          }
 
-  methods: {
+          this.setupEditor();
+        })
+        .catch(() => flash('Error setting up monaco. Please try again.'));
+    },
     setupEditor() {
-      this.showHide();
+      if (!this.activeFile) return;
+      const content = this.activeFile.content !== '' ? this.activeFile.content : this.activeFile.raw;
 
-      Helper.setMonacoModelFromLanguage();
-    },
+      const foundLang = this.languages.find(lang =>
+        lang.extensions && lang.extensions.indexOf(this.activeFileExtension) === 0,
+      );
+      const newModel = this.monaco.editor.createModel(
+        content, foundLang ? foundLang.id : 'plaintext',
+      );
 
-    showHide() {
-      if (!this.openedFiles.length || (this.binary && !this.activeFile.raw)) {
-        this.$el.style.display = 'none';
-      } else {
-        this.$el.style.display = 'inline-block';
-      }
+      this.monacoInstance.setModel(newModel);
     },
-
     addMonacoEvents() {
-      Helper.monacoInstance.onMouseUp(this.onMonacoEditorMouseUp);
-      Helper.monacoInstance.onKeyUp(this.onMonacoEditorKeysPressed.bind(this));
-    },
-
-    onMonacoEditorKeysPressed() {
-      Store.setActiveFileContents(Helper.monacoInstance.getValue());
-    },
-
-    onMonacoEditorMouseUp(e) {
-      if (!e.target.position) return;
-      const lineNumber = e.target.position.lineNumber;
-      if (e.target.element.classList.contains('line-numbers')) {
-        location.hash = `L${lineNumber}`;
-        Store.setActiveLine(lineNumber);
-      }
+      this.monacoInstance.onKeyUp(() => {
+        this.changeFileContent({
+          file: this.activeFile,
+          content: this.monacoInstance.getValue(),
+        });
+      });
     },
   },
-
   watch: {
-    dialog: {
-      handler(obj) {
-        const newObj = obj;
-        if (newObj.status) {
-          newObj.status = false;
-          this.openedFiles = this.openedFiles.map((file) => {
-            const f = file;
-            if (f.active) {
-              this.blobRaw = f.plain;
-            }
-            f.changed = false;
-            delete f.newContent;
-
-            return f;
-          });
-          this.editMode = false;
-          Store.toggleBlobView();
-        }
-      },
-      deep: true,
-    },
-
-    blobRaw() {
-      if (Helper.monacoInstance) {
-        this.setupEditor();
-      }
-    },
-
-    activeLine() {
-      if (Helper.monacoInstance) {
-        Helper.monacoInstance.setPosition({
-          lineNumber: this.activeLine,
-          column: 1,
-        });
+    activeFile(oldVal, newVal) {
+      if (newVal && !newVal.active) {
+        this.initMonaco();
       }
     },
   },
   computed: {
+    ...mapGetters([
+      'activeFile',
+      'activeFileExtension',
+    ]),
     shouldHideEditor() {
-      return !this.openedFiles.length || (this.binary && !this.activeFile.raw);
+      return this.activeFile.binary && !this.activeFile.raw;
     },
   },
 };
-
-export default RepoEditor;
 </script>
 
 <template>
-<div id="ide" v-if='!shouldHideEditor'></div>
+  <div
+    id="ide"
+    v-if='!shouldHideEditor'
+    class="blob-viewer-container blob-editor-container"
+  >
+  </div>
 </template>
diff --git a/app/assets/javascripts/repo/components/repo_file.vue b/app/assets/javascripts/repo/components/repo_file.vue
index 8c86e87ed3a..7a23154b340 100644
--- a/app/assets/javascripts/repo/components/repo_file.vue
+++ b/app/assets/javascripts/repo/components/repo_file.vue
@@ -1,11 +1,9 @@
 <script>
+  import { mapActions, mapGetters } from 'vuex';
   import timeAgoMixin from '../../vue_shared/mixins/timeago';
-  import eventHub from '../event_hub';
-  import repoMixin from '../mixins/repo_mixin';
 
   export default {
     mixins: [
-      repoMixin,
       timeAgoMixin,
     ],
     props: {
@@ -15,13 +13,15 @@
       },
     },
     computed: {
+      ...mapGetters([
+        'isCollapsed',
+      ]),
       fileIcon() {
-        const classObj = {
+        return {
           'fa-spinner fa-spin': this.file.loading,
           [this.file.icon]: !this.file.loading,
           'fa-folder-open': !this.file.loading && this.file.opened,
         };
-        return classObj;
       },
       levelIndentation() {
         return {
@@ -33,9 +33,9 @@
       },
     },
     methods: {
-      linkClicked(file) {
-        eventHub.$emit('fileNameClicked', file);
-      },
+      ...mapActions([
+        'clickedTreeRow',
+      ]),
     },
   };
 </script>
@@ -43,7 +43,7 @@
 <template>
   <tr
     class="file"
-    @click.prevent="linkClicked(file)">
+    @click.prevent="clickedTreeRow(file)">
     <td>
       <i
         class="fa fa-fw file-icon"
@@ -71,7 +71,7 @@
       </template>
     </td>
 
-    <template v-if="!isMini">
+    <template v-if="!isCollapsed">
       <td class="hidden-sm hidden-xs">
         <a
           @click.stop
diff --git a/app/assets/javascripts/repo/components/repo_file_buttons.vue b/app/assets/javascripts/repo/components/repo_file_buttons.vue
index 03cd219e718..dd948ee84fb 100644
--- a/app/assets/javascripts/repo/components/repo_file_buttons.vue
+++ b/app/assets/javascripts/repo/components/repo_file_buttons.vue
@@ -1,42 +1,35 @@
 <script>
-import Store from '../stores/repo_store';
-import Helper from '../helpers/repo_helper';
-import RepoMixin from '../mixins/repo_mixin';
-
-const RepoFileButtons = {
-  data() {
-    return Store;
-  },
-
-  mixins: [RepoMixin],
+import { mapGetters } from 'vuex';
 
+export default {
   computed: {
-
-    rawDownloadButtonLabel() {
-      return this.binary ? 'Download' : 'Raw';
+    ...mapGetters([
+      'activeFile',
+    ]),
+    showButtons() {
+      return this.activeFile.rawPath ||
+        this.activeFile.blamePath ||
+        this.activeFile.commitsPath ||
+        this.activeFile.permalink;
     },
-
-    canPreview() {
-      return Helper.isRenderable();
+    rawDownloadButtonLabel() {
+      return this.activeFile.binary ? 'Download' : 'Raw';
     },
   },
-
-  methods: {
-    rawPreviewToggle: Store.toggleRawPreview,
-  },
 };
-
-export default RepoFileButtons;
 </script>
 
 <template>
-  <div id="repo-file-buttons">
+  <div
+    v-if="showButtons"
+    class="repo-file-buttons"
+  >
     <a
-      :href="activeFile.raw_path"
+      :href="activeFile.rawPath"
       target="_blank"
       class="btn btn-default raw"
       rel="noopener noreferrer">
-      {{rawDownloadButtonLabel}}
+      {{ rawDownloadButtonLabel }}
     </a>
 
     <div
@@ -44,12 +37,12 @@ export default RepoFileButtons;
       role="group"
       aria-label="File actions">
       <a
-        :href="activeFile.blame_path"
+        :href="activeFile.blamePath"
         class="btn btn-default blame">
         Blame
       </a>
       <a
-        :href="activeFile.commits_path"
+        :href="activeFile.commitsPath"
         class="btn btn-default history">
         History
       </a>
@@ -59,13 +52,5 @@ export default RepoFileButtons;
         Permalink
       </a>
     </div>
-
-    <a
-      v-if="canPreview"
-      href="#"
-      @click.prevent="rawPreviewToggle"
-      class="btn btn-default preview">
-      {{activeFileLabel}}
-    </a>
   </div>
 </template>
diff --git a/app/assets/javascripts/repo/components/repo_loading_file.vue b/app/assets/javascripts/repo/components/repo_loading_file.vue
index 832b45b2b29..1e6c405f292 100644
--- a/app/assets/javascripts/repo/components/repo_loading_file.vue
+++ b/app/assets/javascripts/repo/components/repo_loading_file.vue
@@ -1,10 +1,12 @@
 <script>
-  import repoMixin from '../mixins/repo_mixin';
+  import { mapGetters } from 'vuex';
 
   export default {
-    mixins: [
-      repoMixin,
-    ],
+    computed: {
+      ...mapGetters([
+        'isCollapsed',
+      ]),
+    },
     methods: {
       lineOfCode(n) {
         return `skeleton-line-${n}`;
@@ -28,7 +30,7 @@
         </div>
       </div>
     </td>
-    <template v-if="!isMini">
+    <template v-if="!isCollapsed">
       <td
         class="hidden-sm hidden-xs">
         <div class="animation-container">
diff --git a/app/assets/javascripts/repo/components/repo_prev_directory.vue b/app/assets/javascripts/repo/components/repo_prev_directory.vue
index c4bf6dcdec2..a2b305bbd05 100644
--- a/app/assets/javascripts/repo/components/repo_prev_directory.vue
+++ b/app/assets/javascripts/repo/components/repo_prev_directory.vue
@@ -1,26 +1,22 @@
 <script>
-  import eventHub from '../event_hub';
-  import repoMixin from '../mixins/repo_mixin';
+  import { mapGetters, mapState, mapActions } from 'vuex';
 
   export default {
-    mixins: [
-      repoMixin,
-    ],
-    props: {
-      prevUrl: {
-        type: String,
-        required: true,
-      },
-    },
     computed: {
+      ...mapState([
+        'parentTreeUrl',
+      ]),
+      ...mapGetters([
+        'isCollapsed',
+      ]),
       colSpanCondition() {
-        return this.isMini ? undefined : 3;
+        return this.isCollapsed ? undefined : 3;
       },
     },
     methods: {
-      linkClicked(file) {
-        eventHub.$emit('goToPreviousDirectoryClicked', file);
-      },
+      ...mapActions([
+        'getTreeData',
+      ]),
     },
   };
 </script>
@@ -30,9 +26,9 @@
     <td
       :colspan="colSpanCondition"
       class="table-cell"
-      @click.prevent="linkClicked(prevUrl)"
+      @click.prevent="getTreeData({ endpoint: parentTreeUrl })"
     >
-      <a :href="prevUrl">...</a>
+      <a :href="parentTreeUrl">...</a>
     </td>
   </tr>
 </template>
diff --git a/app/assets/javascripts/repo/components/repo_preview.vue b/app/assets/javascripts/repo/components/repo_preview.vue
index b5be771d539..d1883299bd9 100644
--- a/app/assets/javascripts/repo/components/repo_preview.vue
+++ b/app/assets/javascripts/repo/components/repo_preview.vue
@@ -1,26 +1,20 @@
 <script>
 /* global LineHighlighter */
-
-import Store from '../stores/repo_store';
+import { mapGetters } from 'vuex';
 
 export default {
-  data() {
-    return Store;
-  },
   computed: {
-    html() {
-      return this.activeFile.html;
+    ...mapGetters([
+      'activeFile',
+    ]),
+    renderErrorTooLarge() {
+      return this.activeFile.renderError === 'too_large';
     },
   },
   methods: {
     highlightFile() {
       $(this.$el).find('.file-content').syntaxHighlight();
     },
-    highlightLine() {
-      if (Store.activeLine > -1) {
-        this.lineHighlighter.highlightHash(`#L${Store.activeLine}`);
-      }
-    },
   },
   mounted() {
     this.highlightFile();
@@ -29,38 +23,39 @@ export default {
       scrollFileHolder: true,
     });
   },
-  watch: {
-    html() {
-      this.$nextTick(() => {
-        this.highlightFile();
-        this.highlightLine();
-      });
-    },
-    activeLine() {
-      this.highlightLine();
-    },
+  updated() {
+    this.$nextTick(() => {
+      this.highlightFile();
+    });
   },
 };
 </script>
 
 <template>
-<div>
+<div class="blob-viewer-container">
   <div
-    v-if="!activeFile.render_error"
+    v-if="!activeFile.renderError"
     v-html="activeFile.html">
   </div>
   <div
-    v-else-if="activeFile.tooLarge"
+    v-else-if="activeFile.tempFile"
+    class="vertical-center render-error">
+    <p class="text-center">
+      The source could not be displayed for this temporary file.
+    </p>
+  </div>
+  <div
+    v-else-if="renderErrorTooLarge"
     class="vertical-center render-error">
     <p class="text-center">
-      The source could not be displayed because it is too large. You can <a :href="activeFile.raw_path">download</a> it instead.
+      The source could not be displayed because it is too large. You can <a :href="activeFile.rawPath" download>download</a> it instead.
     </p>
   </div>
   <div
     v-else
     class="vertical-center render-error">
     <p class="text-center">
-      The source could not be displayed because a rendering error occurred. You can <a :href="activeFile.raw_path">download</a> it instead.
+      The source could not be displayed because a rendering error occurred. You can <a :href="activeFile.rawPath" download>download</a> it instead.
     </p>
   </div>
 </div>
diff --git a/app/assets/javascripts/repo/components/repo_sidebar.vue b/app/assets/javascripts/repo/components/repo_sidebar.vue
index 09dc9ee25d7..63c0d70f5c0 100644
--- a/app/assets/javascripts/repo/components/repo_sidebar.vue
+++ b/app/assets/javascripts/repo/components/repo_sidebar.vue
@@ -1,120 +1,55 @@
 <script>
-import _ from 'underscore';
-import Service from '../services/repo_service';
-import Helper from '../helpers/repo_helper';
-import Store from '../stores/repo_store';
-import eventHub from '../event_hub';
+import { mapState, mapGetters, mapActions } from 'vuex';
 import RepoPreviousDirectory from './repo_prev_directory.vue';
 import RepoFile from './repo_file.vue';
 import RepoLoadingFile from './repo_loading_file.vue';
-import RepoMixin from '../mixins/repo_mixin';
 
 export default {
-  mixins: [RepoMixin],
   components: {
     'repo-previous-directory': RepoPreviousDirectory,
     'repo-file': RepoFile,
     'repo-loading-file': RepoLoadingFile,
   },
   created() {
-    window.addEventListener('popstate', this.checkHistory);
+    window.addEventListener('popstate', this.popHistoryState);
   },
   destroyed() {
-    eventHub.$off('fileNameClicked', this.fileClicked);
-    eventHub.$off('goToPreviousDirectoryClicked', this.goToPreviousDirectoryClicked);
-    window.removeEventListener('popstate', this.checkHistory);
+    window.removeEventListener('popstate', this.popHistoryState);
   },
   mounted() {
-    eventHub.$on('fileNameClicked', this.fileClicked);
-    eventHub.$on('goToPreviousDirectoryClicked', this.goToPreviousDirectoryClicked);
-  },
-  data() {
-    return Store;
+    this.getTreeData();
   },
   computed: {
-    flattendFiles() {
-      const mapFiles = arr => (!arr.files.length ? [] : _.map(arr.files, a => [a, mapFiles(a)]));
-
-      return _.chain(this.files)
-        .map(arr => [arr, mapFiles(arr)])
-        .flatten()
-        .value();
-    },
+    ...mapState([
+      'loading',
+      'isRoot',
+    ]),
+    ...mapState({
+      projectName(state) {
+        return state.project.name;
+      },
+    }),
+    ...mapGetters([
+      'treeList',
+      'isCollapsed',
+    ]),
   },
   methods: {
-    checkHistory() {
-      let selectedFile = this.files.find(file => location.pathname.indexOf(file.url) > -1);
-      if (!selectedFile) {
-        // Maybe it is not in the current tree but in the opened tabs
-        selectedFile = Helper.getFileFromPath(location.pathname);
-      }
-
-      let lineNumber = null;
-      if (location.hash.indexOf('#L') > -1) lineNumber = Number(location.hash.substr(2));
-
-      if (selectedFile) {
-        if (selectedFile.url !== this.activeFile.url) {
-          this.fileClicked(selectedFile, lineNumber);
-        } else {
-          Store.setActiveLine(lineNumber);
-        }
-      } else {
-        // Not opened at all lets open new tab
-        this.fileClicked({
-          url: location.href,
-        }, lineNumber);
-      }
-    },
-
-    fileClicked(clickedFile, lineNumber) {
-      const file = clickedFile;
-
-      if (file.loading) return;
-
-      if (file.type === 'tree' && file.opened) {
-        Helper.setDirectoryToClosed(file);
-        Store.setActiveLine(lineNumber);
-      } else if (file.type === 'submodule') {
-        file.loading = true;
-
-        gl.utils.visitUrl(file.url);
-      } else {
-        const openFile = Helper.getFileFromPath(file.url);
-
-        if (openFile) {
-          Store.setActiveFiles(openFile);
-          Store.setActiveLine(lineNumber);
-        } else {
-          file.loading = true;
-          Service.url = file.url;
-          Helper.getContent(file)
-            .then(() => {
-              file.loading = false;
-              Helper.scrollTabsRight();
-              Store.setActiveLine(lineNumber);
-            })
-            .catch(Helper.loadingError);
-        }
-      }
-    },
-
-    goToPreviousDirectoryClicked(prevURL) {
-      Service.url = prevURL;
-      Helper.getContent(null, true)
-        .then(() => Helper.scrollTabsRight())
-        .catch(Helper.loadingError);
-    },
+    ...mapActions([
+      'getTreeData',
+      'popHistoryState',
+    ]),
   },
 };
 </script>
 
 <template>
-<div id="sidebar" :class="{'sidebar-mini' : isMini}">
+<div id="sidebar" :class="{'sidebar-mini' : isCollapsed}">
   <table class="table">
     <thead>
       <tr>
         <th
-          v-if="isMini"
+          v-if="isCollapsed"
           class="repo-file-options title"
         >
           <strong class="clgray">
@@ -136,17 +71,16 @@ export default {
     </thead>
     <tbody>
       <repo-previous-directory
-        v-if="!isRoot && !loading.tree"
-        :prev-url="prevURL"
+        v-if="!isRoot && treeList.length"
       />
       <repo-loading-file
-        v-if="!flattendFiles.length && loading.tree"
+        v-if="!treeList.length && loading"
         v-for="n in 5"
         :key="n"
       />
       <repo-file
-        v-for="file in flattendFiles"
-        :key="file.id"
+        v-for="(file, index) in treeList"
+        :key="index"
         :file="file"
       />
     </tbody>
diff --git a/app/assets/javascripts/repo/components/repo_tab.vue b/app/assets/javascripts/repo/components/repo_tab.vue
index 098715915b0..da0714c368c 100644
--- a/app/assets/javascripts/repo/components/repo_tab.vue
+++ b/app/assets/javascripts/repo/components/repo_tab.vue
@@ -1,7 +1,7 @@
 <script>
-import Store from '../stores/repo_store';
+import { mapActions } from 'vuex';
 
-const RepoTab = {
+export default {
   props: {
     tab: {
       type: Object,
@@ -11,44 +11,38 @@ const RepoTab = {
 
   computed: {
     closeLabel() {
-      if (this.tab.changed) {
+      if (this.tab.changed || this.tab.tempFile) {
         return `${this.tab.name} changed`;
       }
       return `Close ${this.tab.name}`;
     },
     changedClass() {
       const tabChangedObj = {
-        'fa-times close-icon': !this.tab.changed,
-        'fa-circle unsaved-icon': this.tab.changed,
+        'fa-times close-icon': !this.tab.changed && !this.tab.tempFile,
+        'fa-circle unsaved-icon': this.tab.changed || this.tab.tempFile,
       };
       return tabChangedObj;
     },
   },
 
   methods: {
-    tabClicked(file) {
-      Store.setActiveFiles(file);
-    },
-    closeTab(file) {
-      if (file.changed) return;
-
-      Store.removeFromOpenedFiles(file);
-    },
+    ...mapActions([
+      'setFileActive',
+      'closeFile',
+    ]),
   },
 };
-
-export default RepoTab;
 </script>
 
 <template>
   <li
     :class="{ active : tab.active }"
-    @click="tabClicked(tab)"
+    @click="setFileActive(tab)"
   >
     <button
       type="button"
       class="close-btn"
-      @click.stop.prevent="closeTab(tab)"
+      @click.stop.prevent="closeFile({ file: tab })"
       :aria-label="closeLabel">
       <i
         class="fa"
@@ -61,7 +55,7 @@ export default RepoTab;
       href="#"
       class="repo-tab"
       :title="tab.url"
-      @click.prevent="tabClicked(tab)">
+      @click.prevent.stop="setFileActive(tab)">
       {{tab.name}}
     </a>
   </li>
diff --git a/app/assets/javascripts/repo/components/repo_tabs.vue b/app/assets/javascripts/repo/components/repo_tabs.vue
index b57cd0960de..59beae53e8d 100644
--- a/app/assets/javascripts/repo/components/repo_tabs.vue
+++ b/app/assets/javascripts/repo/components/repo_tabs.vue
@@ -1,15 +1,15 @@
 <script>
-  import Store from '../stores/repo_store';
+  import { mapState } from 'vuex';
   import RepoTab from './repo_tab.vue';
-  import RepoMixin from '../mixins/repo_mixin';
 
   export default {
-    mixins: [RepoMixin],
     components: {
       'repo-tab': RepoTab,
     },
-    data() {
-      return Store;
+    computed: {
+      ...mapState([
+        'openFiles',
+      ]),
     },
   };
 </script>
@@ -20,7 +20,7 @@
     class="list-unstyled"
   >
     <repo-tab
-      v-for="tab in openedFiles"
+      v-for="tab in openFiles"
       :key="tab.id"
       :tab="tab"
     />
diff --git a/app/assets/javascripts/repo/event_hub.js b/app/assets/javascripts/repo/event_hub.js
deleted file mode 100644
index 0948c2e5352..00000000000
--- a/app/assets/javascripts/repo/event_hub.js
+++ /dev/null
@@ -1,3 +0,0 @@
-import Vue from 'vue';
-
-export default new Vue();
diff --git a/app/assets/javascripts/repo/helpers/monaco_loader_helper.js b/app/assets/javascripts/repo/helpers/monaco_loader_helper.js
deleted file mode 100644
index f8729bbf585..00000000000
--- a/app/assets/javascripts/repo/helpers/monaco_loader_helper.js
+++ /dev/null
@@ -1,25 +0,0 @@
-/* global monaco */
-import RepoEditor from '../components/repo_editor.vue';
-import Store from '../stores/repo_store';
-import Helper from '../helpers/repo_helper';
-import monacoLoader from '../monaco_loader';
-
-function repoEditorLoader() {
-  Store.monacoLoading = true;
-  return new Promise((resolve, reject) => {
-    monacoLoader(['vs/editor/editor.main'], () => {
-      Helper.monaco = monaco;
-      Store.monacoLoading = false;
-      resolve(RepoEditor);
-    }, () => {
-      Store.monacoLoading = false;
-      reject();
-    });
-  });
-}
-
-const MonacoLoaderHelper = {
-  repoEditorLoader,
-};
-
-export default MonacoLoaderHelper;
diff --git a/app/assets/javascripts/repo/helpers/repo_helper.js b/app/assets/javascripts/repo/helpers/repo_helper.js
deleted file mode 100644
index f7b7f93e4b8..00000000000
--- a/app/assets/javascripts/repo/helpers/repo_helper.js
+++ /dev/null
@@ -1,228 +0,0 @@
-import { convertPermissionToBoolean } from '../../lib/utils/common_utils';
-import Service from '../services/repo_service';
-import Store from '../stores/repo_store';
-import Flash from '../../flash';
-
-const RepoHelper = {
-  monacoInstance: null,
-
-  getDefaultActiveFile() {
-    return {
-      active: true,
-      binary: false,
-      extension: '',
-      html: '',
-      mime_type: '',
-      name: '',
-      plain: '',
-      size: 0,
-      url: '',
-      raw: false,
-      newContent: '',
-      changed: false,
-      loading: false,
-    };
-  },
-
-  key: '',
-
-  Time: window.performance
-  && window.performance.now
-  ? window.performance
-  : Date,
-
-  getFileExtension(fileName) {
-    return fileName.split('.').pop();
-  },
-
-  getLanguageIDForFile(file, langs) {
-    const ext = RepoHelper.getFileExtension(file.name);
-    const foundLang = RepoHelper.findLanguage(ext, langs);
-
-    return foundLang ? foundLang.id : 'plaintext';
-  },
-
-  setMonacoModelFromLanguage() {
-    RepoHelper.monacoInstance.setModel(null);
-    const languages = RepoHelper.monaco.languages.getLanguages();
-    const languageID = RepoHelper.getLanguageIDForFile(Store.activeFile, languages);
-    const newModel = RepoHelper.monaco.editor.createModel(Store.blobRaw, languageID);
-    RepoHelper.monacoInstance.setModel(newModel);
-  },
-
-  findLanguage(ext, langs) {
-    return langs.find(lang => lang.extensions && lang.extensions.indexOf(`.${ext}`) > -1);
-  },
-
-  setDirectoryOpen(tree, title) {
-    if (!tree) return;
-
-    Object.assign(tree, {
-      opened: true,
-    });
-
-    RepoHelper.updateHistoryEntry(tree.url, title);
-  },
-
-  setDirectoryToClosed(entry) {
-    Object.assign(entry, {
-      opened: false,
-      files: [],
-    });
-  },
-
-  isRenderable() {
-    const okExts = ['md', 'svg'];
-    return okExts.indexOf(Store.activeFile.extension) > -1;
-  },
-
-  setBinaryDataAsBase64(file) {
-    Service.getBase64Content(file.raw_path)
-    .then((response) => {
-      Store.blobRaw = response;
-      file.base64 = response; // eslint-disable-line no-param-reassign
-    })
-    .catch(RepoHelper.loadingError);
-  },
-
-  getContent(treeOrFile, emptyFiles = false) {
-    let file = treeOrFile;
-
-    if (!Store.files.length) {
-      Store.loading.tree = true;
-    }
-
-    return Service.getContent()
-    .then((response) => {
-      const data = response.data;
-      if (response.headers && response.headers['page-title']) data.pageTitle = decodeURI(response.headers['page-title']);
-      if (response.headers && response.headers['is-root'] && !Store.isInitialRoot) {
-        Store.isRoot = convertPermissionToBoolean(response.headers['is-root']);
-        Store.isInitialRoot = Store.isRoot;
-      }
-
-      if (file && file.type === 'blob') {
-        if (!file) file = data;
-        Store.binary = data.binary;
-
-        if (data.binary) {
-          // file might be undefined
-          RepoHelper.setBinaryDataAsBase64(data);
-          Store.setViewToPreview();
-        } else if (!Store.isPreviewView() && !data.render_error) {
-          Service.getRaw(data.raw_path)
-          .then((rawResponse) => {
-            Store.blobRaw = rawResponse.data;
-            data.plain = rawResponse.data;
-            RepoHelper.setFile(data, file);
-          }).catch(RepoHelper.loadingError);
-        }
-
-        if (Store.isPreviewView()) {
-          RepoHelper.setFile(data, file);
-        }
-      } else {
-        Store.loading.tree = false;
-        RepoHelper.setDirectoryOpen(file, data.pageTitle || data.name);
-
-        if (emptyFiles) {
-          Store.files = [];
-        }
-
-        this.addToDirectory(file, data);
-
-        Store.prevURL = Service.blobURLtoParentTree(Service.url);
-      }
-    }).catch(RepoHelper.loadingError);
-  },
-
-  addToDirectory(file, data) {
-    const tree = file || Store;
-    const files = tree.files.concat(this.dataToListOfFiles(data, file ? file.level + 1 : 0));
-
-    tree.files = files;
-  },
-
-  setFile(data, file) {
-    const newFile = data;
-    newFile.url = file.url || Service.url; // Grab the URL from service, happens on page refresh.
-
-    if (newFile.render_error === 'too_large' || newFile.render_error === 'collapsed') {
-      newFile.tooLarge = true;
-    }
-    newFile.newContent = '';
-
-    Store.addToOpenedFiles(newFile);
-    Store.setActiveFiles(newFile);
-  },
-
-  serializeRepoEntity(type, entity, level = 0) {
-    const { id, url, name, icon, last_commit, tree_url } = entity;
-
-    return {
-      id,
-      type,
-      name,
-      url,
-      tree_url,
-      level,
-      icon: `fa-${icon}`,
-      files: [],
-      loading: false,
-      opened: false,
-      // eslint-disable-next-line camelcase
-      lastCommit: last_commit ? {
-        url: `${Store.projectUrl}/commit/${last_commit.id}`,
-        message: last_commit.message,
-        updatedAt: last_commit.committed_date,
-      } : {},
-    };
-  },
-
-  scrollTabsRight() {
-    const tabs = document.getElementById('tabs');
-    if (!tabs) return;
-    tabs.scrollLeft = tabs.scrollWidth;
-  },
-
-  dataToListOfFiles(data, level) {
-    const { blobs, trees, submodules } = data;
-    return [
-      ...trees.map(tree => RepoHelper.serializeRepoEntity('tree', tree, level)),
-      ...submodules.map(submodule => RepoHelper.serializeRepoEntity('submodule', submodule, level)),
-      ...blobs.map(blob => RepoHelper.serializeRepoEntity('blob', blob, level)),
-    ];
-  },
-
-  genKey() {
-    return RepoHelper.Time.now().toFixed(3);
-  },
-
-  updateHistoryEntry(url, title) {
-    const history = window.history;
-
-    RepoHelper.key = RepoHelper.genKey();
-
-    if (document.location.pathname !== url) {
-      history.pushState({ key: RepoHelper.key }, '', url);
-    }
-
-    if (title) {
-      document.title = title;
-    }
-  },
-
-  findOpenedFileFromActive() {
-    return Store.openedFiles.find(openedFile => Store.activeFile.url === openedFile.url);
-  },
-
-  getFileFromPath(path) {
-    return Store.openedFiles.find(file => file.url === path);
-  },
-
-  loadingError() {
-    Flash('Unable to load this content at this time.');
-  },
-};
-
-export default RepoHelper;
diff --git a/app/assets/javascripts/repo/index.js b/app/assets/javascripts/repo/index.js
index 85e960df497..b6801af7fcb 100644
--- a/app/assets/javascripts/repo/index.js
+++ b/app/assets/javascripts/repo/index.js
@@ -1,53 +1,50 @@
-import $ from 'jquery';
 import Vue from 'vue';
+import { mapActions } from 'vuex';
 import { convertPermissionToBoolean } from '../lib/utils/common_utils';
-import Service from './services/repo_service';
-import Store from './stores/repo_store';
 import Repo from './components/repo.vue';
 import RepoEditButton from './components/repo_edit_button.vue';
 import newBranchForm from './components/new_branch_form.vue';
+import newDropdown from './components/new_dropdown/index.vue';
+import store from './stores';
 import Translate from '../vue_shared/translate';
 
-function initDropdowns() {
-  $('.js-tree-ref-target-holder').hide();
-}
-
-function addEventsForNonVueEls() {
-  window.onbeforeunload = function confirmUnload(e) {
-    const hasChanged = Store.openedFiles
-      .some(file => file.changed);
-    if (!hasChanged) return undefined;
-    const event = e || window.event;
-    if (event) event.returnValue = 'Are you sure you want to lose unsaved changes?';
-    // For Safari
-    return 'Are you sure you want to lose unsaved changes?';
-  };
-}
-
-function setInitialStore(data) {
-  Store.service = Service;
-  Store.service.url = data.url;
-  Store.service.refsUrl = data.refsUrl;
-  Store.projectId = data.projectId;
-  Store.projectName = data.projectName;
-  Store.projectUrl = data.projectUrl;
-  Store.canCommit = data.canCommit;
-  Store.onTopOfBranch = data.onTopOfBranch;
-  Store.newMrTemplateUrl = decodeURIComponent(data.newMrTemplateUrl);
-  Store.customBranchURL = decodeURIComponent(data.blobUrl);
-  Store.isRoot = convertPermissionToBoolean(data.root);
-  Store.isInitialRoot = convertPermissionToBoolean(data.root);
-  Store.currentBranch = $('button.dropdown-menu-toggle').attr('data-ref');
-  Store.checkIsCommitable();
-  Store.setBranchHash();
-}
-
 function initRepo(el) {
+  if (!el) return null;
+
   return new Vue({
     el,
+    store,
     components: {
       repo: Repo,
     },
+    methods: {
+      ...mapActions([
+        'setInitialData',
+      ]),
+    },
+    created() {
+      const data = el.dataset;
+
+      this.setInitialData({
+        project: {
+          id: data.projectId,
+          name: data.projectName,
+          url: data.projectUrl,
+        },
+        endpoints: {
+          rootEndpoint: data.url,
+          newMergeRequestUrl: data.newMergeRequestUrl,
+          rootUrl: data.rootUrl,
+        },
+        canCommit: convertPermissionToBoolean(data.canCommit),
+        onTopOfBranch: convertPermissionToBoolean(data.onTopOfBranch),
+        currentRef: data.ref,
+        path: data.currentPath,
+        currentBranch: data.currentBranch,
+        isRoot: convertPermissionToBoolean(data.root),
+        isInitialRoot: convertPermissionToBoolean(data.root),
+      });
+    },
     render(createElement) {
       return createElement('repo');
     },
@@ -57,9 +54,26 @@ function initRepo(el) {
 function initRepoEditButton(el) {
   return new Vue({
     el,
+    store,
     components: {
       repoEditButton: RepoEditButton,
     },
+    render(createElement) {
+      return createElement('repo-edit-button');
+    },
+  });
+}
+
+function initNewDropdown(el) {
+  return new Vue({
+    el,
+    store,
+    components: {
+      newDropdown,
+    },
+    render(createElement) {
+      return createElement('new-dropdown');
+    },
   });
 }
 
@@ -73,30 +87,20 @@ function initNewBranchForm() {
     components: {
       newBranchForm,
     },
+    store,
     render(createElement) {
-      return createElement('new-branch-form', {
-        props: {
-          currentBranch: Store.currentBranch,
-        },
-      });
+      return createElement('new-branch-form');
     },
   });
 }
 
-function initRepoBundle() {
-  const repo = document.getElementById('repo');
-  const editButton = document.querySelector('.editable-mode');
-  setInitialStore(repo.dataset);
-  addEventsForNonVueEls();
-  initDropdowns();
-
-  Vue.use(Translate);
-
-  initRepo(repo);
-  initRepoEditButton(editButton);
-  initNewBranchForm();
-}
+const repo = document.getElementById('repo');
+const editButton = document.querySelector('.editable-mode');
+const newDropdownHolder = document.querySelector('.js-new-dropdown');
 
-$(initRepoBundle);
+Vue.use(Translate);
 
-export default initRepoBundle;
+initRepo(repo);
+initRepoEditButton(editButton);
+initNewBranchForm();
+initNewDropdown(newDropdownHolder);
diff --git a/app/assets/javascripts/repo/mixins/repo_mixin.js b/app/assets/javascripts/repo/mixins/repo_mixin.js
deleted file mode 100644
index c8e8238a0d3..00000000000
--- a/app/assets/javascripts/repo/mixins/repo_mixin.js
+++ /dev/null
@@ -1,17 +0,0 @@
-import Store from '../stores/repo_store';
-
-const RepoMixin = {
-  computed: {
-    isMini() {
-      return !!Store.openedFiles.length;
-    },
-
-    changedFiles() {
-      const changedFileList = this.openedFiles
-      .filter(file => file.changed);
-      return changedFileList;
-    },
-  },
-};
-
-export default RepoMixin;
diff --git a/app/assets/javascripts/repo/services/index.js b/app/assets/javascripts/repo/services/index.js
new file mode 100644
index 00000000000..dc222ccac01
--- /dev/null
+++ b/app/assets/javascripts/repo/services/index.js
@@ -0,0 +1,33 @@
+import Vue from 'vue';
+import VueResource from 'vue-resource';
+import Api from '../../api';
+
+Vue.use(VueResource);
+
+export default {
+  getTreeData(endpoint) {
+    return Vue.http.get(endpoint, { params: { format: 'json' } });
+  },
+  getFileData(endpoint) {
+    return Vue.http.get(endpoint, { params: { format: 'json' } });
+  },
+  getRawFileData(file) {
+    if (file.tempFile) {
+      return Promise.resolve(file.content);
+    }
+
+    return Vue.http.get(file.rawPath, { params: { format: 'json' } })
+      .then(res => res.text());
+  },
+  getBranchData(projectId, currentBranch) {
+    return Api.branchSingle(projectId, currentBranch);
+  },
+  createBranch(projectId, payload) {
+    const url = Api.buildUrl(Api.createBranchPath).replace(':id', projectId);
+
+    return Vue.http.post(url, payload);
+  },
+  commit(projectId, payload) {
+    return Api.commitMultiple(projectId, payload);
+  },
+};
diff --git a/app/assets/javascripts/repo/services/repo_service.js b/app/assets/javascripts/repo/services/repo_service.js
deleted file mode 100644
index 786b5637493..00000000000
--- a/app/assets/javascripts/repo/services/repo_service.js
+++ /dev/null
@@ -1,95 +0,0 @@
-import axios from 'axios';
-import csrf from '../../lib/utils/csrf';
-import Store from '../stores/repo_store';
-import Api from '../../api';
-import Helper from '../helpers/repo_helper';
-
-axios.defaults.headers.common[csrf.headerKey] = csrf.token;
-
-const RepoService = {
-  url: '',
-  options: {
-    params: {
-      format: 'json',
-    },
-  },
-  createBranchPath: '/api/:version/projects/:id/repository/branches',
-  richExtensionRegExp: /md/,
-
-  getRaw(url) {
-    return axios.get(url, {
-      // Stop Axios from parsing a JSON file into a JS object
-      transformResponse: [res => res],
-    });
-  },
-
-  buildParams(url = this.url) {
-    // shallow clone object without reference
-    const params = Object.assign({}, this.options.params);
-
-    if (this.urlIsRichBlob(url)) params.viewer = 'rich';
-
-    return params;
-  },
-
-  urlIsRichBlob(url = this.url) {
-    const extension = Helper.getFileExtension(url);
-
-    return this.richExtensionRegExp.test(extension);
-  },
-
-  getContent(url = this.url) {
-    const params = this.buildParams(url);
-
-    return axios.get(url, {
-      params,
-    });
-  },
-
-  getBase64Content(url = this.url) {
-    const request = axios.get(url, {
-      responseType: 'arraybuffer',
-    });
-
-    return request.then(response => this.bufferToBase64(response.data));
-  },
-
-  bufferToBase64(data) {
-    return new Buffer(data, 'binary').toString('base64');
-  },
-
-  blobURLtoParentTree(url) {
-    const urlArray = url.split('/');
-    urlArray.pop();
-    const blobIndex = urlArray.lastIndexOf('blob');
-
-    if (blobIndex > -1) urlArray[blobIndex] = 'tree';
-
-    return urlArray.join('/');
-  },
-
-  getBranch() {
-    return Api.branchSingle(Store.projectId, Store.currentBranch);
-  },
-
-  commitFiles(payload) {
-    return Api.commitMultiple(Store.projectId, payload)
-      .then(this.commitFlash);
-  },
-
-  createBranch(payload) {
-    const url = Api.buildUrl(this.createBranchPath)
-      .replace(':id', Store.projectId);
-    return axios.post(url, payload);
-  },
-
-  commitFlash(data) {
-    if (data.short_id && data.stats) {
-      window.Flash(`Your changes have been committed. Commit ${data.short_id} with ${data.stats.additions} additions, ${data.stats.deletions} deletions.`, 'notice');
-    } else {
-      window.Flash(data.message);
-    }
-  },
-};
-
-export default RepoService;
diff --git a/app/assets/javascripts/repo/stores/actions.js b/app/assets/javascripts/repo/stores/actions.js
new file mode 100644
index 00000000000..ca2f2a5ce7a
--- /dev/null
+++ b/app/assets/javascripts/repo/stores/actions.js
@@ -0,0 +1,129 @@
+import Vue from 'vue';
+import flash from '../../flash';
+import service from '../services';
+import * as types from './mutation_types';
+
+export const redirectToUrl = url => gl.utils.visitUrl(url);
+
+export const setInitialData = ({ commit }, data) => commit(types.SET_INITIAL_DATA, data);
+
+export const closeDiscardPopup = ({ commit }) => commit(types.TOGGLE_DISCARD_POPUP, false);
+
+export const discardAllChanges = ({ commit, getters, dispatch }) => {
+  const changedFiles = getters.changedFiles;
+
+  changedFiles.forEach((file) => {
+    commit(types.DISCARD_FILE_CHANGES, file);
+
+    if (file.tempFile) {
+      dispatch('closeFile', { file, force: true });
+    }
+  });
+};
+
+export const closeAllFiles = ({ state, dispatch }) => {
+  state.openFiles.forEach(file => dispatch('closeFile', { file }));
+};
+
+export const toggleEditMode = ({ state, commit, getters, dispatch }, force = false) => {
+  const changedFiles = getters.changedFiles;
+
+  if (changedFiles.length && !force) {
+    commit(types.TOGGLE_DISCARD_POPUP, true);
+  } else {
+    commit(types.TOGGLE_EDIT_MODE);
+    commit(types.TOGGLE_DISCARD_POPUP, false);
+    dispatch('toggleBlobView');
+
+    if (!state.editMode) {
+      dispatch('discardAllChanges');
+    }
+  }
+};
+
+export const toggleBlobView = ({ commit, state }) => {
+  if (state.editMode) {
+    commit(types.SET_EDIT_MODE);
+  } else {
+    commit(types.SET_PREVIEW_MODE);
+  }
+};
+
+export const checkCommitStatus = ({ state }) => service.getBranchData(
+  state.project.id,
+  state.currentBranch,
+)
+  .then((data) => {
+    const { id } = data.commit;
+
+    if (state.currentRef !== id) {
+      return true;
+    }
+
+    return false;
+  })
+  .catch(() => flash('Error checking branch data. Please try again.'));
+
+export const commitChanges = ({ commit, state, dispatch }, { payload, newMr }) =>
+  service.commit(state.project.id, payload)
+  .then((data) => {
+    const { branch } = payload;
+    if (!data.short_id) {
+      flash(data.message);
+      return;
+    }
+
+    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}`);
+    } else {
+      commit(types.SET_COMMIT_REF, data.id);
+      dispatch('discardAllChanges');
+      dispatch('closeAllFiles');
+      dispatch('toggleEditMode');
+
+      window.scrollTo(0, 0);
+    }
+  })
+  .catch(() => flash('Error committing changes. Please try again.'));
+
+export const createTempEntry = ({ state, dispatch }, { name, type, content = '', base64 = false }) => {
+  if (type === 'tree') {
+    dispatch('createTempTree', name);
+  } else if (type === 'blob') {
+    dispatch('createTempFile', {
+      tree: state,
+      name,
+      base64,
+      content,
+    });
+  }
+};
+
+export const popHistoryState = ({ state, dispatch, getters }) => {
+  const treeList = getters.treeList;
+  const tree = treeList.find(file => file.url === state.previousUrl);
+
+  if (!tree) return;
+
+  if (tree.type === 'tree') {
+    dispatch('toggleTreeOpen', { endpoint: tree.url, tree });
+  }
+};
+
+export const scrollToTab = () => {
+  Vue.nextTick(() => {
+    const tabs = document.getElementById('tabs');
+
+    if (tabs) {
+      const tabEl = tabs.querySelector('.active .repo-tab');
+
+      tabEl.focus();
+    }
+  });
+};
+
+export * from './actions/tree';
+export * from './actions/file';
+export * from './actions/branch';
diff --git a/app/assets/javascripts/repo/stores/actions/branch.js b/app/assets/javascripts/repo/stores/actions/branch.js
new file mode 100644
index 00000000000..b81a70dfd1e
--- /dev/null
+++ b/app/assets/javascripts/repo/stores/actions/branch.js
@@ -0,0 +1,20 @@
+import service from '../../services';
+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,
+  {
+    branch,
+    ref: rootState.currentBranch,
+  },
+).then(res => res.json())
+.then((data) => {
+  const branchName = data.name;
+  const url = location.href.replace(rootState.currentBranch, branchName);
+
+  pushState(url);
+
+  commit(types.SET_CURRENT_BRANCH, branchName);
+});
diff --git a/app/assets/javascripts/repo/stores/actions/file.js b/app/assets/javascripts/repo/stores/actions/file.js
new file mode 100644
index 00000000000..afbe0b78a82
--- /dev/null
+++ b/app/assets/javascripts/repo/stores/actions/file.js
@@ -0,0 +1,108 @@
+import { normalizeHeaders } from '../../../lib/utils/common_utils';
+import flash from '../../../flash';
+import service from '../../services';
+import * as types from '../mutation_types';
+import {
+  findEntry,
+  pushState,
+  setPageTitle,
+  createTemp,
+  findIndexOfFile,
+} from '../utils';
+
+export const closeFile = ({ commit, state, dispatch }, { file, force = false }) => {
+  if ((file.changed || file.tempFile) && !force) return;
+
+  const indexOfClosedFile = findIndexOfFile(state.openFiles, file);
+  const fileWasActive = file.active;
+
+  commit(types.TOGGLE_FILE_OPEN, file);
+  commit(types.SET_FILE_ACTIVE, { file, active: false });
+
+  if (state.openFiles.length > 0 && fileWasActive) {
+    const nextIndexToOpen = indexOfClosedFile === 0 ? 0 : indexOfClosedFile - 1;
+    const nextFileToOpen = state.openFiles[nextIndexToOpen];
+
+    dispatch('setFileActive', nextFileToOpen);
+  } else if (!state.openFiles.length) {
+    pushState(file.parentTreeUrl);
+  }
+};
+
+export const setFileActive = ({ commit, state, getters, dispatch }, file) => {
+  const currentActiveFile = getters.activeFile;
+
+  if (file.active) return;
+
+  if (currentActiveFile) {
+    commit(types.SET_FILE_ACTIVE, { file: currentActiveFile, active: false });
+  }
+
+  commit(types.SET_FILE_ACTIVE, { file, active: true });
+  dispatch('scrollToTab');
+
+  // reset hash for line highlighting
+  location.hash = '';
+};
+
+export const getFileData = ({ state, commit, dispatch }, file) => {
+  commit(types.TOGGLE_LOADING, file);
+
+  service.getFileData(file.url)
+    .then((res) => {
+      const pageTitle = decodeURI(normalizeHeaders(res.headers)['PAGE-TITLE']);
+
+      setPageTitle(pageTitle);
+
+      return res.json();
+    })
+    .then((data) => {
+      commit(types.SET_FILE_DATA, { data, file });
+      commit(types.TOGGLE_FILE_OPEN, file);
+      dispatch('setFileActive', file);
+      commit(types.TOGGLE_LOADING, file);
+
+      pushState(file.url);
+    })
+    .catch(() => {
+      commit(types.TOGGLE_LOADING, file);
+      flash('Error loading file data. Please try again.');
+    });
+};
+
+export const getRawFileData = ({ commit, dispatch }, file) => service.getRawFileData(file)
+  .then((raw) => {
+    commit(types.SET_FILE_RAW_DATA, { file, raw });
+  })
+  .catch(() => flash('Error loading file content. Please try again.'));
+
+export const changeFileContent = ({ commit }, { file, content }) => {
+  commit(types.UPDATE_FILE_CONTENT, { file, content });
+};
+
+export const createTempFile = ({ state, commit, dispatch }, { tree, name, content = '', base64 = '' }) => {
+  const file = createTemp({
+    name: name.replace(`${state.path}/`, ''),
+    path: tree.path,
+    type: 'blob',
+    level: tree.level !== undefined ? tree.level + 1 : 0,
+    changed: true,
+    content,
+    base64,
+  });
+
+  if (findEntry(tree, 'blob', file.name)) return flash(`The name "${file.name}" is already taken in this directory.`);
+
+  commit(types.CREATE_TMP_FILE, {
+    parent: tree,
+    file,
+  });
+  commit(types.TOGGLE_FILE_OPEN, file);
+  dispatch('setFileActive', file);
+
+  if (!state.editMode && !file.base64) {
+    dispatch('toggleEditMode', true);
+  }
+
+  return Promise.resolve(file);
+};
diff --git a/app/assets/javascripts/repo/stores/actions/tree.js b/app/assets/javascripts/repo/stores/actions/tree.js
new file mode 100644
index 00000000000..129743c66c2
--- /dev/null
+++ b/app/assets/javascripts/repo/stores/actions/tree.js
@@ -0,0 +1,110 @@
+import { normalizeHeaders } from '../../../lib/utils/common_utils';
+import flash from '../../../flash';
+import service from '../../services';
+import * as types from '../mutation_types';
+import {
+  pushState,
+  setPageTitle,
+  findEntry,
+  createTemp,
+} from '../utils';
+
+export const getTreeData = (
+  { commit, state },
+  { endpoint = state.endpoints.rootEndpoint, tree = state } = {},
+) => {
+  commit(types.TOGGLE_LOADING, tree);
+
+  service.getTreeData(endpoint)
+    .then((res) => {
+      const pageTitle = decodeURI(normalizeHeaders(res.headers)['PAGE-TITLE']);
+
+      setPageTitle(pageTitle);
+
+      return res.json();
+    })
+    .then((data) => {
+      if (!state.isInitialRoot) {
+        commit(types.SET_ROOT, data.path === '/');
+      }
+
+      commit(types.SET_DIRECTORY_DATA, { data, tree });
+      commit(types.SET_PARENT_TREE_URL, data.parent_tree_url);
+      commit(types.TOGGLE_LOADING, tree);
+
+      pushState(endpoint);
+    })
+    .catch(() => {
+      flash('Error loading tree data. Please try again.');
+      commit(types.TOGGLE_LOADING, tree);
+    });
+};
+
+export const toggleTreeOpen = ({ commit, dispatch }, { endpoint, tree }) => {
+  if (tree.opened) {
+    // send empty data to clear the tree
+    const data = { trees: [], blobs: [], submodules: [] };
+
+    pushState(tree.parentTreeUrl);
+
+    commit(types.SET_PREVIOUS_URL, tree.parentTreeUrl);
+    commit(types.SET_DIRECTORY_DATA, { data, tree });
+  } else {
+    commit(types.SET_PREVIOUS_URL, endpoint);
+    dispatch('getTreeData', { endpoint, tree });
+  }
+
+  commit(types.TOGGLE_TREE_OPEN, tree);
+};
+
+export const clickedTreeRow = ({ commit, dispatch }, row) => {
+  if (row.type === 'tree') {
+    dispatch('toggleTreeOpen', {
+      endpoint: row.url,
+      tree: row,
+    });
+  } else if (row.type === 'submodule') {
+    commit(types.TOGGLE_LOADING, row);
+
+    gl.utils.visitUrl(row.url);
+  } else if (row.type === 'blob' && row.opened) {
+    dispatch('setFileActive', row);
+  } else {
+    dispatch('getFileData', row);
+  }
+};
+
+export const createTempTree = ({ state, commit, dispatch }, name) => {
+  let tree = state;
+  const dirNames = name.replace(new RegExp(`^${state.path}/`), '').split('/');
+
+  dirNames.forEach((dirName) => {
+    const foundEntry = findEntry(tree, 'tree', dirName);
+
+    if (!foundEntry) {
+      const tmpEntry = createTemp({
+        name: dirName,
+        path: tree.path,
+        type: 'tree',
+        level: tree.level !== undefined ? tree.level + 1 : 0,
+      });
+
+      commit(types.CREATE_TMP_TREE, {
+        parent: tree,
+        tmpEntry,
+      });
+      commit(types.TOGGLE_TREE_OPEN, tmpEntry);
+
+      tree = tmpEntry;
+    } else {
+      tree = foundEntry;
+    }
+  });
+
+  if (tree.tempFile) {
+    dispatch('createTempFile', {
+      tree,
+      name: '.gitkeep',
+    });
+  }
+};
diff --git a/app/assets/javascripts/repo/stores/getters.js b/app/assets/javascripts/repo/stores/getters.js
new file mode 100644
index 00000000000..1ed05ac6e35
--- /dev/null
+++ b/app/assets/javascripts/repo/stores/getters.js
@@ -0,0 +1,36 @@
+import _ from 'underscore';
+
+/*
+  Takes the multi-dimensional tree and returns a flattened array.
+  This allows for the table to recursively render the table rows but keeps the data
+  structure nested to make it easier to add new files/directories.
+*/
+export const treeList = (state) => {
+  const mapTree = arr => (!arr.tree.length ? [] : _.map(arr.tree, a => [a, mapTree(a)]));
+
+  return _.chain(state.tree)
+    .map(arr => [arr, mapTree(arr)])
+    .flatten()
+    .value();
+};
+
+export const changedFiles = state => state.openFiles.filter(file => file.changed);
+
+export const activeFile = state => state.openFiles.find(file => file.active);
+
+export const activeFileExtension = (state) => {
+  const file = activeFile(state);
+  return file ? `.${file.path.split('.').pop()}` : '';
+};
+
+export const isCollapsed = state => !!state.openFiles.length;
+
+export const canEditFile = (state) => {
+  const currentActiveFile = activeFile(state);
+  const openedFiles = state.openFiles;
+
+  return state.canCommit &&
+    state.onTopOfBranch &&
+    openedFiles.length &&
+    (currentActiveFile && !currentActiveFile.renderError && !currentActiveFile.binary);
+};
diff --git a/app/assets/javascripts/repo/stores/index.js b/app/assets/javascripts/repo/stores/index.js
new file mode 100644
index 00000000000..6ac9bfd8189
--- /dev/null
+++ b/app/assets/javascripts/repo/stores/index.js
@@ -0,0 +1,15 @@
+import Vue from 'vue';
+import Vuex from 'vuex';
+import state from './state';
+import * as actions from './actions';
+import * as getters from './getters';
+import mutations from './mutations';
+
+Vue.use(Vuex);
+
+export default new Vuex.Store({
+  state: state(),
+  actions,
+  mutations,
+  getters,
+});
diff --git a/app/assets/javascripts/repo/stores/mutation_types.js b/app/assets/javascripts/repo/stores/mutation_types.js
new file mode 100644
index 00000000000..4722a7dd0df
--- /dev/null
+++ b/app/assets/javascripts/repo/stores/mutation_types.js
@@ -0,0 +1,28 @@
+export const SET_INITIAL_DATA = 'SET_INITIAL_DATA';
+export const TOGGLE_LOADING = 'TOGGLE_LOADING';
+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';
+
+// 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';
+
+// File mutation types
+export const SET_FILE_DATA = 'SET_FILE_DATA';
+export const TOGGLE_FILE_OPEN = 'TOGGLE_FILE_OPEN';
+export const SET_FILE_ACTIVE = 'SET_FILE_ACTIVE';
+export const SET_FILE_RAW_DATA = 'SET_FILE_RAW_DATA';
+export const UPDATE_FILE_CONTENT = 'UPDATE_FILE_CONTENT';
+export const DISCARD_FILE_CHANGES = 'DISCARD_FILE_CHANGES';
+export const CREATE_TMP_FILE = 'CREATE_TMP_FILE';
+
+// Viewer mutation types
+export const SET_PREVIEW_MODE = 'SET_PREVIEW_MODE';
+export const SET_EDIT_MODE = 'SET_EDIT_MODE';
+export const TOGGLE_EDIT_MODE = 'TOGGLE_EDIT_MODE';
+export const TOGGLE_DISCARD_POPUP = 'TOGGLE_DISCARD_POPUP';
+
+export const SET_CURRENT_BRANCH = 'SET_CURRENT_BRANCH';
diff --git a/app/assets/javascripts/repo/stores/mutations.js b/app/assets/javascripts/repo/stores/mutations.js
new file mode 100644
index 00000000000..2f9b038322b
--- /dev/null
+++ b/app/assets/javascripts/repo/stores/mutations.js
@@ -0,0 +1,54 @@
+import * as types from './mutation_types';
+import fileMutations from './mutations/file';
+import treeMutations from './mutations/tree';
+import branchMutations from './mutations/branch';
+
+export default {
+  [types.SET_INITIAL_DATA](state, data) {
+    Object.assign(state, data);
+  },
+  [types.SET_PREVIEW_MODE](state) {
+    Object.assign(state, {
+      currentBlobView: 'repo-preview',
+    });
+  },
+  [types.SET_EDIT_MODE](state) {
+    Object.assign(state, {
+      currentBlobView: 'repo-editor',
+    });
+  },
+  [types.TOGGLE_LOADING](state, entry) {
+    Object.assign(entry, {
+      loading: !entry.loading,
+    });
+  },
+  [types.TOGGLE_EDIT_MODE](state) {
+    Object.assign(state, {
+      editMode: !state.editMode,
+    });
+  },
+  [types.TOGGLE_DISCARD_POPUP](state, discardPopupOpen) {
+    Object.assign(state, {
+      discardPopupOpen,
+    });
+  },
+  [types.SET_COMMIT_REF](state, ref) {
+    Object.assign(state, {
+      currentRef: ref,
+    });
+  },
+  [types.SET_ROOT](state, isRoot) {
+    Object.assign(state, {
+      isRoot,
+      isInitialRoot: isRoot,
+    });
+  },
+  [types.SET_PREVIOUS_URL](state, previousUrl) {
+    Object.assign(state, {
+      previousUrl,
+    });
+  },
+  ...fileMutations,
+  ...treeMutations,
+  ...branchMutations,
+};
diff --git a/app/assets/javascripts/repo/stores/mutations/branch.js b/app/assets/javascripts/repo/stores/mutations/branch.js
new file mode 100644
index 00000000000..d8229e8a620
--- /dev/null
+++ b/app/assets/javascripts/repo/stores/mutations/branch.js
@@ -0,0 +1,9 @@
+import * as types from '../mutation_types';
+
+export default {
+  [types.SET_CURRENT_BRANCH](state, currentBranch) {
+    Object.assign(state, {
+      currentBranch,
+    });
+  },
+};
diff --git a/app/assets/javascripts/repo/stores/mutations/file.js b/app/assets/javascripts/repo/stores/mutations/file.js
new file mode 100644
index 00000000000..f9ba80b9dc2
--- /dev/null
+++ b/app/assets/javascripts/repo/stores/mutations/file.js
@@ -0,0 +1,54 @@
+import * as types from '../mutation_types';
+import { findIndexOfFile } from '../utils';
+
+export default {
+  [types.SET_FILE_ACTIVE](state, { file, active }) {
+    Object.assign(file, {
+      active,
+    });
+  },
+  [types.TOGGLE_FILE_OPEN](state, file) {
+    Object.assign(file, {
+      opened: !file.opened,
+    });
+
+    if (file.opened) {
+      state.openFiles.push(file);
+    } else {
+      state.openFiles.splice(findIndexOfFile(state.openFiles, file), 1);
+    }
+  },
+  [types.SET_FILE_DATA](state, { data, file }) {
+    Object.assign(file, {
+      blamePath: data.blame_path,
+      commitsPath: data.commits_path,
+      permalink: data.permalink,
+      rawPath: data.raw_path,
+      binary: data.binary,
+      html: data.html,
+      renderError: data.render_error,
+    });
+  },
+  [types.SET_FILE_RAW_DATA](state, { file, raw }) {
+    Object.assign(file, {
+      raw,
+    });
+  },
+  [types.UPDATE_FILE_CONTENT](state, { file, content }) {
+    const changed = content !== file.raw;
+
+    Object.assign(file, {
+      content,
+      changed,
+    });
+  },
+  [types.DISCARD_FILE_CHANGES](state, file) {
+    Object.assign(file, {
+      content: '',
+      changed: false,
+    });
+  },
+  [types.CREATE_TMP_FILE](state, { file, parent }) {
+    parent.tree.push(file);
+  },
+};
diff --git a/app/assets/javascripts/repo/stores/mutations/tree.js b/app/assets/javascripts/repo/stores/mutations/tree.js
new file mode 100644
index 00000000000..52be2673107
--- /dev/null
+++ b/app/assets/javascripts/repo/stores/mutations/tree.js
@@ -0,0 +1,45 @@
+import * as types from '../mutation_types';
+import * as utils from '../utils';
+
+export default {
+  [types.TOGGLE_TREE_OPEN](state, tree) {
+    Object.assign(tree, {
+      opened: !tree.opened,
+    });
+  },
+  [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)),
+      ],
+    });
+  },
+  [types.SET_PARENT_TREE_URL](state, url) {
+    Object.assign(state, {
+      parentTreeUrl: url,
+    });
+  },
+  [types.CREATE_TMP_TREE](state, { parent, tmpEntry }) {
+    parent.tree.push(tmpEntry);
+  },
+};
diff --git a/app/assets/javascripts/repo/stores/repo_store.js b/app/assets/javascripts/repo/stores/repo_store.js
deleted file mode 100644
index 39e1b4e5849..00000000000
--- a/app/assets/javascripts/repo/stores/repo_store.js
+++ /dev/null
@@ -1,181 +0,0 @@
-import Helper from '../helpers/repo_helper';
-import Service from '../services/repo_service';
-
-const RepoStore = {
-  monacoLoading: false,
-  service: '',
-  canCommit: false,
-  onTopOfBranch: false,
-  editMode: false,
-  isRoot: null,
-  isInitialRoot: null,
-  prevURL: '',
-  projectId: '',
-  projectName: '',
-  projectUrl: '',
-  branchUrl: '',
-  blobRaw: '',
-  currentBlobView: 'repo-preview',
-  openedFiles: [],
-  submitCommitsLoading: false,
-  dialog: {
-    open: false,
-    title: '',
-    status: false,
-  },
-  showNewBranchDialog: false,
-  activeFile: Helper.getDefaultActiveFile(),
-  activeFileIndex: 0,
-  activeLine: -1,
-  activeFileLabel: 'Raw',
-  files: [],
-  isCommitable: false,
-  binary: false,
-  currentBranch: '',
-  startNewMR: false,
-  currentHash: '',
-  currentShortHash: '',
-  customBranchURL: '',
-  newMrTemplateUrl: '',
-  branchChanged: false,
-  commitMessage: '',
-  loading: {
-    tree: false,
-    blob: false,
-  },
-
-  setBranchHash() {
-    return Service.getBranch()
-      .then((data) => {
-        if (RepoStore.currentHash !== '' && data.commit.id !== RepoStore.currentHash) {
-          RepoStore.branchChanged = true;
-        }
-        RepoStore.currentHash = data.commit.id;
-        RepoStore.currentShortHash = data.commit.short_id;
-      });
-  },
-
-  // mutations
-  checkIsCommitable() {
-    RepoStore.isCommitable = RepoStore.onTopOfBranch && RepoStore.canCommit;
-  },
-
-  toggleRawPreview() {
-    RepoStore.activeFile.raw = !RepoStore.activeFile.raw;
-    RepoStore.activeFileLabel = RepoStore.activeFile.raw ? 'Display rendered file' : 'Display source';
-  },
-
-  setActiveFiles(file) {
-    if (RepoStore.isActiveFile(file)) return;
-    RepoStore.openedFiles = RepoStore.openedFiles
-      .map((openedFile, i) => RepoStore.setFileActivity(file, openedFile, i));
-
-    RepoStore.setActiveToRaw();
-
-    if (file.binary) {
-      RepoStore.blobRaw = file.base64;
-    } else if (file.newContent || file.plain) {
-      RepoStore.blobRaw = file.newContent || file.plain;
-    } else {
-      Service.getRaw(file.raw_path)
-        .then((rawResponse) => {
-          RepoStore.blobRaw = rawResponse.data;
-          Helper.findOpenedFileFromActive().plain = rawResponse.data;
-        }).catch(Helper.loadingError);
-    }
-
-    if (!file.loading) Helper.updateHistoryEntry(file.url, file.pageTitle || file.name);
-    RepoStore.binary = file.binary;
-    RepoStore.setActiveLine(-1);
-  },
-
-  setFileActivity(file, openedFile, i) {
-    const activeFile = openedFile;
-    activeFile.active = file.url === activeFile.url;
-
-    if (activeFile.active) RepoStore.setActiveFile(activeFile, i);
-
-    return activeFile;
-  },
-
-  setActiveFile(activeFile, i) {
-    RepoStore.activeFile = Object.assign({}, RepoStore.activeFile, activeFile);
-    RepoStore.activeFileIndex = i;
-  },
-
-  setActiveLine(activeLine) {
-    if (!isNaN(activeLine)) RepoStore.activeLine = activeLine;
-  },
-
-  setActiveToRaw() {
-    RepoStore.activeFile.raw = false;
-    // can't get vue to listen to raw for some reason so RepoStore for now.
-    RepoStore.activeFileLabel = 'Display source';
-  },
-
-  removeFromOpenedFiles(file) {
-    if (file.type === 'tree') return;
-    let foundIndex;
-    RepoStore.openedFiles = RepoStore.openedFiles.filter((openedFile, i) => {
-      if (openedFile.path === file.path) foundIndex = i;
-      return openedFile.path !== file.path;
-    });
-
-    // now activate the right tab based on what you closed.
-    if (RepoStore.openedFiles.length === 0) {
-      RepoStore.activeFile = {};
-      return;
-    }
-
-    if (RepoStore.openedFiles.length === 1 || foundIndex === 0) {
-      RepoStore.setActiveFiles(RepoStore.openedFiles[0]);
-      return;
-    }
-
-    if (foundIndex && foundIndex > 0) {
-      RepoStore.setActiveFiles(RepoStore.openedFiles[foundIndex - 1]);
-    }
-  },
-
-  addToOpenedFiles(file) {
-    const openFile = file;
-
-    const openedFilesAlreadyExists = RepoStore.openedFiles
-      .some(openedFile => openedFile.path === openFile.path);
-
-    if (openedFilesAlreadyExists) return;
-
-    openFile.changed = false;
-    openFile.active = true;
-    RepoStore.openedFiles.push(openFile);
-  },
-
-  setActiveFileContents(contents) {
-    if (!RepoStore.editMode) return;
-    const currentFile = RepoStore.openedFiles[RepoStore.activeFileIndex];
-    RepoStore.activeFile.newContent = contents;
-    RepoStore.activeFile.changed = RepoStore.activeFile.plain !== RepoStore.activeFile.newContent;
-    currentFile.changed = RepoStore.activeFile.changed;
-    currentFile.newContent = contents;
-  },
-
-  toggleBlobView() {
-    RepoStore.currentBlobView = RepoStore.isPreviewView() ? 'repo-editor' : 'repo-preview';
-  },
-
-  setViewToPreview() {
-    RepoStore.currentBlobView = 'repo-preview';
-  },
-
-  // getters
-
-  isActiveFile(file) {
-    return file && file.url === RepoStore.activeFile.url;
-  },
-
-  isPreviewView() {
-    return RepoStore.currentBlobView === 'repo-preview';
-  },
-};
-
-export default RepoStore;
diff --git a/app/assets/javascripts/repo/stores/state.js b/app/assets/javascripts/repo/stores/state.js
new file mode 100644
index 00000000000..aab74754f02
--- /dev/null
+++ b/app/assets/javascripts/repo/stores/state.js
@@ -0,0 +1,23 @@
+export default () => ({
+  canCommit: false,
+  currentBranch: '',
+  currentBlobView: 'repo-preview',
+  currentRef: '',
+  discardPopupOpen: false,
+  editMode: false,
+  endpoints: {},
+  isRoot: false,
+  isInitialRoot: false,
+  loading: false,
+  onTopOfBranch: false,
+  openFiles: [],
+  path: '',
+  project: {
+    id: 0,
+    name: '',
+    url: '',
+  },
+  parentTreeUrl: '',
+  previousUrl: '',
+  tree: [],
+});
diff --git a/app/assets/javascripts/repo/stores/utils.js b/app/assets/javascripts/repo/stores/utils.js
new file mode 100644
index 00000000000..797c2b1e5b9
--- /dev/null
+++ b/app/assets/javascripts/repo/stores/utils.js
@@ -0,0 +1,108 @@
+export const dataStructure = () => ({
+  id: '',
+  type: '',
+  name: '',
+  url: '',
+  path: '',
+  level: 0,
+  tempFile: false,
+  icon: '',
+  tree: [],
+  loading: false,
+  opened: false,
+  active: false,
+  changed: false,
+  lastCommit: {},
+  tree_url: '',
+  blamePath: '',
+  commitsPath: '',
+  permalink: '',
+  rawPath: '',
+  binary: false,
+  html: '',
+  raw: '',
+  content: '',
+  parentTreeUrl: '',
+  renderError: false,
+  base64: false,
+});
+
+export const decorateData = (entity, projectUrl = '') => {
+  const {
+    id,
+    type,
+    url,
+    name,
+    icon,
+    last_commit,
+    tree_url,
+    path,
+    renderError,
+    content = '',
+    tempFile = false,
+    active = false,
+    opened = false,
+    changed = false,
+    parentTreeUrl = '',
+    level = 0,
+    base64 = false,
+  } = entity;
+
+  return {
+    ...dataStructure(),
+    id,
+    type,
+    name,
+    url,
+    tree_url,
+    path,
+    level,
+    tempFile,
+    icon: `fa-${icon}`,
+    opened,
+    active,
+    parentTreeUrl,
+    changed,
+    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,
+    } : {},
+  };
+};
+
+export const findEntry = (state, type, name) => state.tree.find(
+  f => f.type === type && f.name === name,
+);
+export const findIndexOfFile = (state, file) => state.findIndex(f => f.path === file.path);
+
+export const setPageTitle = (title) => {
+  document.title = title;
+};
+
+export const pushState = (url) => {
+  history.pushState({ url }, '', url);
+};
+
+export const createTemp = ({ name, path, type, level, changed, content, base64 }) => {
+  const treePath = path ? `${path}/${name}` : name;
+
+  return decorateData({
+    id: new Date().getTime().toString(),
+    name,
+    type,
+    tempFile: true,
+    path: treePath,
+    icon: type === 'tree' ? 'folder' : 'file-text-o',
+    changed,
+    content,
+    parentTreeUrl: '',
+    level,
+    base64,
+    renderError: base64,
+  });
+};
diff --git a/app/assets/javascripts/sidebar/components/participants/participants.vue b/app/assets/javascripts/sidebar/components/participants/participants.vue
new file mode 100644
index 00000000000..b8510a6ce3a
--- /dev/null
+++ b/app/assets/javascripts/sidebar/components/participants/participants.vue
@@ -0,0 +1,125 @@
+<script>
+import { __, n__, sprintf } from '../../../locale';
+import loadingIcon from '../../../vue_shared/components/loading_icon.vue';
+import userAvatarImage from '../../../vue_shared/components/user_avatar/user_avatar_image.vue';
+
+export default {
+  props: {
+    loading: {
+      type: Boolean,
+      required: false,
+      default: false,
+    },
+    participants: {
+      type: Array,
+      required: false,
+      default: () => [],
+    },
+    numberOfLessParticipants: {
+      type: Number,
+      required: false,
+      default: 7,
+    },
+  },
+  data() {
+    return {
+      isShowingMoreParticipants: false,
+    };
+  },
+  components: {
+    loadingIcon,
+    userAvatarImage,
+  },
+  computed: {
+    lessParticipants() {
+      return this.participants.slice(0, this.numberOfLessParticipants);
+    },
+    visibleParticipants() {
+      return this.isShowingMoreParticipants ? this.participants : this.lessParticipants;
+    },
+    hasMoreParticipants() {
+      return this.participants.length > this.numberOfLessParticipants;
+    },
+    toggleLabel() {
+      let label = '';
+      if (this.isShowingMoreParticipants) {
+        label = __('- show less');
+      } else {
+        label = sprintf(__('+ %{moreCount} more'), {
+          moreCount: this.participants.length - this.numberOfLessParticipants,
+        });
+      }
+
+      return label;
+    },
+    participantLabel() {
+      return sprintf(
+        n__('%{count} participant', '%{count} participants', this.participants.length),
+        { count: this.loading ? '' : this.participantCount },
+      );
+    },
+    participantCount() {
+      return this.participants.length;
+    },
+  },
+  methods: {
+    toggleMoreParticipants() {
+      this.isShowingMoreParticipants = !this.isShowingMoreParticipants;
+    },
+  },
+};
+</script>
+
+<template>
+  <div>
+    <div class="sidebar-collapsed-icon">
+      <i
+        class="fa fa-users"
+        aria-hidden="true">
+      </i>
+      <loading-icon
+        v-if="loading"
+        class="js-participants-collapsed-loading-icon" />
+      <span
+        v-else
+        class="js-participants-collapsed-count">
+        {{ participantCount }}
+      </span>
+    </div>
+    <div class="title hide-collapsed">
+      <loading-icon
+        v-if="loading"
+        :inline="true"
+        class="js-participants-expanded-loading-icon" />
+      {{ participantLabel }}
+    </div>
+    <div class="participants-list hide-collapsed">
+      <div
+        v-for="participant in visibleParticipants"
+        :key="participant.id"
+        class="participants-author js-participants-author">
+        <a
+          class="author_link"
+          :href="participant.web_url">
+          <user-avatar-image
+            :lazy="true"
+            :img-src="participant.avatar_url"
+            css-classes="avatar-inline"
+            :size="24"
+            :tooltip-text="participant.name"
+            tooltip-placement="bottom" />
+        </a>
+      </div>
+    </div>
+    <div
+      v-if="hasMoreParticipants"
+      class="participants-more hide-collapsed">
+      <button
+        type="button"
+        class="btn-transparent btn-blank js-toggle-participants-button"
+        @click="toggleMoreParticipants">
+        {{ toggleLabel }}
+      </button>
+    </div>
+  </div>
+</template>
diff --git a/app/assets/javascripts/sidebar/components/participants/sidebar_participants.vue b/app/assets/javascripts/sidebar/components/participants/sidebar_participants.vue
new file mode 100644
index 00000000000..c1296b28db7
--- /dev/null
+++ b/app/assets/javascripts/sidebar/components/participants/sidebar_participants.vue
@@ -0,0 +1,26 @@
+<script>
+import Store from '../../stores/sidebar_store';
+import Mediator from '../../sidebar_mediator';
+import participants from './participants.vue';
+
+export default {
+  data() {
+    return {
+      mediator: new Mediator(),
+      store: new Store(),
+    };
+  },
+  components: {
+    participants,
+  },
+};
+</script>
+
+<template>
+  <div class="block participants">
+    <participants
+      :loading="store.isFetching.participants"
+      :participants="store.participants"
+      :number-of-less-participants="7" />
+  </div>
+</template>
diff --git a/app/assets/javascripts/sidebar/components/subscriptions/sidebar_subscriptions.vue b/app/assets/javascripts/sidebar/components/subscriptions/sidebar_subscriptions.vue
new file mode 100644
index 00000000000..4ad3d469f25
--- /dev/null
+++ b/app/assets/javascripts/sidebar/components/subscriptions/sidebar_subscriptions.vue
@@ -0,0 +1,45 @@
+<script>
+import Store from '../../stores/sidebar_store';
+import Mediator from '../../sidebar_mediator';
+import eventHub from '../../event_hub';
+import Flash from '../../../flash';
+import subscriptions from './subscriptions.vue';
+
+export default {
+  data() {
+    return {
+      mediator: new Mediator(),
+      store: new Store(),
+    };
+  },
+
+  components: {
+    subscriptions,
+  },
+
+  methods: {
+    onToggleSubscription() {
+      this.mediator.toggleSubscription()
+        .catch(() => {
+          Flash('Error occurred when toggling the notification subscription');
+        });
+    },
+  },
+
+  created() {
+    eventHub.$on('toggleSubscription', this.onToggleSubscription);
+  },
+
+  beforeDestroy() {
+    eventHub.$off('toggleSubscription', this.onToggleSubscription);
+  },
+};
+</script>
+
+<template>
+  <div class="block subscriptions">
+    <subscriptions
+      :loading="store.isFetching.subscriptions"
+      :subscribed="store.subscribed" />
+  </div>
+</template>
diff --git a/app/assets/javascripts/sidebar/components/subscriptions/subscriptions.vue b/app/assets/javascripts/sidebar/components/subscriptions/subscriptions.vue
new file mode 100644
index 00000000000..a3a8213d63a
--- /dev/null
+++ b/app/assets/javascripts/sidebar/components/subscriptions/subscriptions.vue
@@ -0,0 +1,60 @@
+<script>
+import { __ } from '../../../locale';
+import eventHub from '../../event_hub';
+import loadingButton from '../../../vue_shared/components/loading_button.vue';
+
+export default {
+  props: {
+    loading: {
+      type: Boolean,
+      required: false,
+      default: false,
+    },
+    subscribed: {
+      type: Boolean,
+      required: false,
+    },
+  },
+  components: {
+    loadingButton,
+  },
+  computed: {
+    buttonLabel() {
+      let label;
+      if (this.subscribed === false) {
+        label = __('Subscribe');
+      } else if (this.subscribed === true) {
+        label = __('Unsubscribe');
+      }
+
+      return label;
+    },
+  },
+  methods: {
+    toggleSubscription() {
+      eventHub.$emit('toggleSubscription');
+    },
+  },
+};
+</script>
+
+<template>
+  <div>
+    <div class="sidebar-collapsed-icon">
+      <i
+        class="fa fa-rss"
+        aria-hidden="true">
+      </i>
+    </div>
+    <span class="issuable-header-text hide-collapsed pull-left">
+      {{ __('Notifications') }}
+    </span>
+    <loading-button
+      ref="loadingButton"
+      class="btn btn-default pull-right hide-collapsed js-issuable-subscribe-button"
+      :loading="loading"
+      :label="buttonLabel"
+      @click="toggleSubscription"
+    />
+  </div>
+</template>
diff --git a/app/assets/javascripts/sidebar/services/sidebar_service.js b/app/assets/javascripts/sidebar/services/sidebar_service.js
index 604648407a4..37c97225bfd 100644
--- a/app/assets/javascripts/sidebar/services/sidebar_service.js
+++ b/app/assets/javascripts/sidebar/services/sidebar_service.js
@@ -7,6 +7,7 @@ export default class SidebarService {
   constructor(endpointMap) {
     if (!SidebarService.singleton) {
       this.endpoint = endpointMap.endpoint;
+      this.toggleSubscriptionEndpoint = endpointMap.toggleSubscriptionEndpoint;
       this.moveIssueEndpoint = endpointMap.moveIssueEndpoint;
       this.projectsAutocompleteEndpoint = endpointMap.projectsAutocompleteEndpoint;
 
@@ -36,6 +37,10 @@ export default class SidebarService {
     });
   }
 
+  toggleSubscription() {
+    return Vue.http.post(this.toggleSubscriptionEndpoint);
+  }
+
   moveIssue(moveToProjectId) {
     return Vue.http.post(this.moveIssueEndpoint, {
       move_to_project_id: moveToProjectId,
diff --git a/app/assets/javascripts/sidebar/sidebar_bundle.js b/app/assets/javascripts/sidebar/sidebar_bundle.js
index 09b9d75c02d..2650bb725d4 100644
--- a/app/assets/javascripts/sidebar/sidebar_bundle.js
+++ b/app/assets/javascripts/sidebar/sidebar_bundle.js
@@ -4,6 +4,8 @@ import SidebarAssignees from './components/assignees/sidebar_assignees';
 import ConfidentialIssueSidebar from './components/confidential/confidential_issue_sidebar.vue';
 import SidebarMoveIssue from './lib/sidebar_move_issue';
 import LockIssueSidebar from './components/lock/lock_issue_sidebar.vue';
+import sidebarParticipants from './components/participants/sidebar_participants.vue';
+import sidebarSubscriptions from './components/subscriptions/sidebar_subscriptions.vue';
 import Translate from '../vue_shared/translate';
 
 import Mediator from './sidebar_mediator';
@@ -49,6 +51,36 @@ function mountLockComponent(mediator) {
   }).$mount(el);
 }
 
+function mountParticipantsComponent() {
+  const el = document.querySelector('.js-sidebar-participants-entry-point');
+
+  if (!el) return;
+
+  // eslint-disable-next-line no-new
+  new Vue({
+    el,
+    components: {
+      sidebarParticipants,
+    },
+    render: createElement => createElement('sidebar-participants', {}),
+  });
+}
+
+function mountSubscriptionsComponent() {
+  const el = document.querySelector('.js-sidebar-subscriptions-entry-point');
+
+  if (!el) return;
+
+  // eslint-disable-next-line no-new
+  new Vue({
+    el,
+    components: {
+      sidebarSubscriptions,
+    },
+    render: createElement => createElement('sidebar-subscriptions', {}),
+  });
+}
+
 function domContentLoaded() {
   const sidebarOptions = JSON.parse(document.querySelector('.js-sidebar-options').innerHTML);
   const mediator = new Mediator(sidebarOptions);
@@ -63,6 +95,8 @@ function domContentLoaded() {
 
   mountConfidentialComponent(mediator);
   mountLockComponent(mediator);
+  mountParticipantsComponent();
+  mountSubscriptionsComponent();
 
   new SidebarMoveIssue(
     mediator,
diff --git a/app/assets/javascripts/sidebar/sidebar_mediator.js b/app/assets/javascripts/sidebar/sidebar_mediator.js
index ede3a0de144..2bda5a47791 100644
--- a/app/assets/javascripts/sidebar/sidebar_mediator.js
+++ b/app/assets/javascripts/sidebar/sidebar_mediator.js
@@ -8,6 +8,7 @@ export default class SidebarMediator {
       this.store = new Store(options);
       this.service = new Service({
         endpoint: options.endpoint,
+        toggleSubscriptionEndpoint: options.toggleSubscriptionEndpoint,
         moveIssueEndpoint: options.moveIssueEndpoint,
         projectsAutocompleteEndpoint: options.projectsAutocompleteEndpoint,
       });
@@ -39,10 +40,25 @@ export default class SidebarMediator {
       .then((data) => {
         this.store.setAssigneeData(data);
         this.store.setTimeTrackingData(data);
+        this.store.setParticipantsData(data);
+        this.store.setSubscriptionsData(data);
       })
       .catch(() => new Flash('Error occurred when fetching sidebar data'));
   }
 
+  toggleSubscription() {
+    this.store.setFetchingState('subscriptions', true);
+    return this.service.toggleSubscription()
+      .then(() => {
+        this.store.setSubscribedState(!this.store.subscribed);
+        this.store.setFetchingState('subscriptions', false);
+      })
+      .catch((err) => {
+        this.store.setFetchingState('subscriptions', false);
+        throw err;
+      });
+  }
+
   fetchAutocompleteProjects(searchTerm) {
     return this.service.getProjectsAutocomplete(searchTerm)
       .then(response => response.json())
diff --git a/app/assets/javascripts/sidebar/stores/sidebar_store.js b/app/assets/javascripts/sidebar/stores/sidebar_store.js
index d5d04103f3f..3150221b685 100644
--- a/app/assets/javascripts/sidebar/stores/sidebar_store.js
+++ b/app/assets/javascripts/sidebar/stores/sidebar_store.js
@@ -12,10 +12,14 @@ export default class SidebarStore {
       this.assignees = [];
       this.isFetching = {
         assignees: true,
+        participants: true,
+        subscriptions: true,
       };
       this.autocompleteProjects = [];
       this.moveToProjectId = 0;
       this.isLockDialogOpen = false;
+      this.participants = [];
+      this.subscribed = null;
 
       SidebarStore.singleton = this;
     }
@@ -37,6 +41,20 @@ export default class SidebarStore {
     this.humanTotalTimeSpent = data.human_total_time_spent;
   }
 
+  setParticipantsData(data) {
+    this.isFetching.participants = false;
+    this.participants = data.participants || [];
+  }
+
+  setSubscriptionsData(data) {
+    this.isFetching.subscriptions = false;
+    this.subscribed = data.subscribed || false;
+  }
+
+  setFetchingState(key, value) {
+    this.isFetching[key] = value;
+  }
+
   addAssignee(assignee) {
     if (!this.findAssignee(assignee)) {
       this.assignees.push(assignee);
@@ -61,6 +79,10 @@ export default class SidebarStore {
     this.autocompleteProjects = projects;
   }
 
+  setSubscribedState(subscribed) {
+    this.subscribed = subscribed;
+  }
+
   setMoveToProjectId(moveToProjectId) {
     this.moveToProjectId = moveToProjectId;
   }
diff --git a/app/assets/javascripts/vue_merge_request_widget/components/states/mr_widget_ready_to_merge.js b/app/assets/javascripts/vue_merge_request_widget/components/states/mr_widget_ready_to_merge.js
index b8a96b23012..be37dd87de9 100644
--- a/app/assets/javascripts/vue_merge_request_widget/components/states/mr_widget_ready_to_merge.js
+++ b/app/assets/javascripts/vue_merge_request_widget/components/states/mr_widget_ready_to_merge.js
@@ -286,6 +286,7 @@ export default {
                 <input
                   id="remove-source-branch-input"
                   v-model="removeSourceBranch"
+                  class="js-remove-source-branch-checkbox"
                   :disabled="isRemoveSourceBranchButtonDisabled"
                   type="checkbox"/> Remove source branch
               </label>
@@ -311,8 +312,8 @@ export default {
               </button>
             </template>
             <template v-else>
-              <span class="bold">
-                The pipeline for this merge request has not succeeded yet
+              <span class="bold js-resolve-mr-widget-items-message">
+                You can only merge once the items above are resolved
               </span>
             </template>
           </div>
diff --git a/app/assets/javascripts/vue_merge_request_widget/services/mr_widget_service.js b/app/assets/javascripts/vue_merge_request_widget/services/mr_widget_service.js
index 79c3d335679..99f5c305df5 100644
--- a/app/assets/javascripts/vue_merge_request_widget/services/mr_widget_service.js
+++ b/app/assets/javascripts/vue_merge_request_widget/services/mr_widget_service.js
@@ -11,7 +11,7 @@ export default class MRWidgetService {
     this.removeWIPResource = Vue.resource(endpoints.removeWIPPath);
     this.removeSourceBranchResource = Vue.resource(endpoints.sourceBranchPath);
     this.deploymentsResource = Vue.resource(endpoints.ciEnvironmentsStatusPath);
-    this.pollResource = Vue.resource(`${endpoints.statusPath}?basic=true`);
+    this.pollResource = Vue.resource(`${endpoints.statusPath}?serializer=basic`);
     this.mergeActionsContentResource = Vue.resource(endpoints.mergeActionsContentPath);
   }
 
diff --git a/app/assets/javascripts/notes/components/issue_placeholder_note.vue b/app/assets/javascripts/vue_shared/components/notes/placeholder_note.vue
index 6921d91372f..e467ca56704 100644
--- a/app/assets/javascripts/notes/components/issue_placeholder_note.vue
+++ b/app/assets/javascripts/vue_shared/components/notes/placeholder_note.vue
@@ -1,9 +1,26 @@
 <script>
+  /**
+   * Common component to render a placeholder note and user information.
+   *
+   * This component needs to be used with a vuex store.
+   * That vuex store needs to have a `getUserData` getter that contains
+   * {
+   *   path: String,
+   *   avatar_url: String,
+   *   name: String,
+   *   username: String,
+   * }
+   *
+   * @example
+   * <placeholder-note
+   *   :note="{body: 'This is a note'}"
+   *   />
+   */
   import { mapGetters } from 'vuex';
-  import userAvatarLink from '../../vue_shared/components/user_avatar/user_avatar_link.vue';
+  import userAvatarLink from '../user_avatar/user_avatar_link.vue';
 
   export default {
-    name: 'issuePlaceholderNote',
+    name: 'placeholderNote',
     props: {
       note: {
         type: Object,
diff --git a/app/assets/javascripts/notes/components/issue_placeholder_system_note.vue b/app/assets/javascripts/vue_shared/components/notes/placeholder_system_note.vue
index 80a8ef56a83..d805fea8006 100644
--- a/app/assets/javascripts/notes/components/issue_placeholder_system_note.vue
+++ b/app/assets/javascripts/vue_shared/components/notes/placeholder_system_note.vue
@@ -1,4 +1,12 @@
 <script>
+  /**
+   * Common component to render a placeholder system note.
+   *
+   * @example
+   * <placeholder-system-note
+   *  :note="{ body: 'Commands are being applied'}"
+   *  />
+   */
   export default {
     name: 'placeholderSystemNote',
     props: {
diff --git a/app/assets/javascripts/notes/components/issue_system_note.vue b/app/assets/javascripts/vue_shared/components/notes/system_note.vue
index 0cfb6522e77..98f8f32557d 100644
--- a/app/assets/javascripts/notes/components/issue_system_note.vue
+++ b/app/assets/javascripts/vue_shared/components/notes/system_note.vue
@@ -1,6 +1,24 @@
 <script>
+  /**
+   * Common component to render a system note, icon and user information.
+   *
+   * This component needs to be used with a vuex store.
+   * That vuex store needs to have a `targetNoteHash` getter
+   *
+   * @example
+   * <system-note
+   *   :note="{
+   *     id: String,
+   *     author: Object,
+   *     createdAt: String,
+   *     note_html: String,
+   *     system_note_icon_name: String
+   *    }"
+   *   />
+   */
   import { mapGetters } from 'vuex';
-  import issueNoteHeader from './issue_note_header.vue';
+  import issueNoteHeader from '../../../notes/components/issue_note_header.vue';
+  import { spriteIcon } from '../../../lib/utils/common_utils';
 
   export default {
     name: 'systemNote',
@@ -24,7 +42,7 @@
         return this.targetNoteHash === this.noteAnchorId;
       },
       iconHtml() {
-        return gl.utils.spriteIcon(this.note.system_note_icon_name);
+        return spriteIcon(this.note.system_note_icon_name);
       },
     },
   };
@@ -46,7 +64,8 @@
             :author="note.author"
             :created-at="note.created_at"
             :note-id="note.id"
-            :action-text-html="note.note_html" />
+            :action-text-html="note.note_html"
+            />
         </div>
       </div>
     </div>
diff --git a/app/assets/javascripts/vue_shared/components/popup_dialog.vue b/app/assets/javascripts/vue_shared/components/popup_dialog.vue
index 7d8c5936b7d..9e8c10bdc1a 100644
--- a/app/assets/javascripts/vue_shared/components/popup_dialog.vue
+++ b/app/assets/javascripts/vue_shared/components/popup_dialog.vue
@@ -9,7 +9,7 @@ export default {
     },
     text: {
       type: String,
-      required: true,
+      required: false,
     },
     kind: {
       type: String,
@@ -82,14 +82,15 @@ export default {
           type="button"
           class="btn"
           :class="btnCancelKindClass"
-          @click="emitSubmit(false)">
-            {{closeButtonLabel}}
+          @click="close">
+          {{ closeButtonLabel }}
         </button>
-        <button type="button"
+        <button
+          type="button"
           class="btn"
           :class="btnKindClass"
           @click="emitSubmit(true)">
-            {{primaryButtonLabel}}
+          {{ primaryButtonLabel }}
         </button>
       </div>
     </div>
diff --git a/app/assets/javascripts/vue_shared/components/user_avatar/user_avatar_link.vue b/app/assets/javascripts/vue_shared/components/user_avatar/user_avatar_link.vue
index 95898d54cf7..dc32e783258 100644
--- a/app/assets/javascripts/vue_shared/components/user_avatar/user_avatar_link.vue
+++ b/app/assets/javascripts/vue_shared/components/user_avatar/user_avatar_link.vue
@@ -12,12 +12,14 @@
     :img-alt="tooltipText"
     :img-size="20"
     :tooltip-text="tooltipText"
-    tooltip-placement="top"
+    :tooltip-placement="top"
+    :username="username"
   />
 
 */
 
 import userAvatarImage from './user_avatar_image.vue';
+import tooltip from '../../directives/tooltip';
 
 export default {
   name: 'UserAvatarLink',
@@ -60,6 +62,22 @@ export default {
       required: false,
       default: 'top',
     },
+    username: {
+      type: String,
+      required: false,
+      default: '',
+    },
+  },
+  computed: {
+    shouldShowUsername() {
+      return this.username.length > 0;
+    },
+    avatarTooltipText() {
+      return this.shouldShowUsername ? '' : this.tooltipText;
+    },
+  },
+  directives: {
+    tooltip,
   },
 };
 </script>
@@ -73,8 +91,13 @@ export default {
       :img-alt="imgAlt"
       :css-classes="imgCssClasses"
       :size="imgSize"
-      :tooltip-text="tooltipText"
+      :tooltip-text="avatarTooltipText"
+      :tooltip-placement="tooltipPlacement"
+    /><span
+      v-if="shouldShowUsername"
+      v-tooltip
+      :title="tooltipText"
       :tooltip-placement="tooltipPlacement"
-    />
+    >{{username}}</span>
   </a>
 </template>
diff --git a/app/assets/stylesheets/framework.scss b/app/assets/stylesheets/framework.scss
index a0bb9e61436..7b1ef003bb2 100644
--- a/app/assets/stylesheets/framework.scss
+++ b/app/assets/stylesheets/framework.scss
@@ -37,7 +37,7 @@
 @import "framework/secondary-navigation-elements";
 @import "framework/selects";
 @import "framework/sidebar";
-@import "framework/new-sidebar";
+@import "framework/contextual-sidebar";
 @import "framework/tables";
 @import "framework/notes";
 @import "framework/tabs";
diff --git a/app/assets/stylesheets/framework/new-sidebar.scss b/app/assets/stylesheets/framework/contextual-sidebar.scss
index 7a309f2c8a1..fa5d3833f3e 100644
--- a/app/assets/stylesheets/framework/new-sidebar.scss
+++ b/app/assets/stylesheets/framework/contextual-sidebar.scss
@@ -1,24 +1,10 @@
-@import "framework/variables";
-@import 'framework/tw_bootstrap_variables';
-@import "bootstrap/variables";
-
-$active-background: rgba(0, 0, 0, .04);
-$active-hover-background: $active-background;
-$active-hover-color: $gl-text-color;
-$inactive-badge-background: rgba(0, 0, 0, .08);
-$hover-background: rgba(0, 0, 0, .06);
-$hover-color: $gl-text-color;
-$inactive-color: $gl-text-color-secondary;
-$new-sidebar-width: 220px;
-$new-sidebar-collapsed-width: 50px;
-
-.page-with-new-sidebar {
+.page-with-contextual-sidebar {
   @media (min-width: $screen-md-min) {
-    padding-left: $new-sidebar-collapsed-width;
+    padding-left: $contextual-sidebar-collapsed-width;
   }
 
   @media (min-width: $screen-lg-min) {
-    padding-left: $new-sidebar-width;
+    padding-left: $contextual-sidebar-width;
   }
 
   // Override position: absolute
@@ -34,7 +20,7 @@ $new-sidebar-collapsed-width: 50px;
 
 .page-with-icon-sidebar {
   @media (min-width: $screen-sm-min) {
-    padding-left: $new-sidebar-collapsed-width;
+    padding-left: $contextual-sidebar-collapsed-width;
   }
 }
 
@@ -52,12 +38,12 @@ $new-sidebar-collapsed-width: 50px;
 
   &:hover,
   a:hover {
-    background-color: $hover-background;
-    color: $hover-color;
+    background-color: $link-hover-background;
+    color: $gl-text-color;
 
     .settings-avatar {
       svg {
-        fill: $hover-color;
+        fill: $gl-text-color;
       }
     }
   }
@@ -85,7 +71,7 @@ $new-sidebar-collapsed-width: 50px;
 .nav-sidebar {
   position: fixed;
   z-index: 400;
-  width: $new-sidebar-width;
+  width: $contextual-sidebar-width;
   transition: left $sidebar-transition-duration;
   top: $header-height;
   bottom: 0;
@@ -103,7 +89,7 @@ $new-sidebar-collapsed-width: 50px;
 
   &.sidebar-icons-only {
     width: auto;
-    min-width: $new-sidebar-collapsed-width;
+    min-width: $contextual-sidebar-collapsed-width;
 
     .nav-sidebar-inner-scroll {
       overflow-x: hidden;
@@ -149,11 +135,11 @@ $new-sidebar-collapsed-width: 50px;
       display: flex;
       align-items: center;
       padding: 12px 16px;
-      color: $inactive-color;
+      color: $gl-text-color-secondary;
     }
 
     svg {
-      fill: $inactive-color;
+      fill: $gl-text-color-secondary;
     }
   }
 
@@ -168,7 +154,7 @@ $new-sidebar-collapsed-width: 50px;
   }
 
   @media (max-width: $screen-xs-max) {
-    left: (-$new-sidebar-width);
+    left: (-$contextual-sidebar-width);
   }
 
   .nav-icon-container {
@@ -210,8 +196,8 @@ $new-sidebar-collapsed-width: 50px;
 
       &:hover,
       &:focus {
-        background: $active-hover-background;
-        color: $active-hover-color;
+        background: $link-active-background;
+        color: $gl-text-color;
       }
     }
 
@@ -220,7 +206,7 @@ $new-sidebar-collapsed-width: 50px;
         &,
         &:hover,
         &:focus {
-          background: $active-background;
+          background: $link-active-background;
         }
       }
     }
@@ -308,11 +294,11 @@ $new-sidebar-collapsed-width: 50px;
 
     .badge {
       background-color: $inactive-badge-background;
-      color: $inactive-color;
+      color: $gl-text-color-secondary;
     }
 
     &.active {
-      background: $active-background;
+      background: $link-active-background;
 
       > a {
         margin-left: 4px;
@@ -330,7 +316,7 @@ $new-sidebar-collapsed-width: 50px;
 
     &.active > a:hover,
     &.is-over > a {
-      background-color: $hover-background;
+      background-color: $link-hover-background;
     }
   }
 }
@@ -340,7 +326,7 @@ $new-sidebar-collapsed-width: 50px;
 
 .toggle-sidebar-button,
 .close-nav-button {
-  width: $new-sidebar-width - 2px;
+  width: $contextual-sidebar-width - 2px;
   position: fixed;
   bottom: 0;
   padding: 16px;
@@ -407,7 +393,7 @@ $new-sidebar-collapsed-width: 50px;
   }
 
   .toggle-sidebar-button {
-    width: $new-sidebar-collapsed-width - 2px;
+    width: $contextual-sidebar-collapsed-width - 2px;
     padding: 16px;
 
     .collapse-text,
diff --git a/app/assets/stylesheets/framework/dropdowns.scss b/app/assets/stylesheets/framework/dropdowns.scss
index a9d804e735d..1aa53b8f8cf 100644
--- a/app/assets/stylesheets/framework/dropdowns.scss
+++ b/app/assets/stylesheets/framework/dropdowns.scss
@@ -776,12 +776,15 @@
       a,
       button,
       .menu-item {
+        margin-bottom: 0;
         border-radius: 0;
         box-shadow: none;
         padding: 8px 16px;
         text-align: left;
         white-space: normal;
         width: 100%;
+        font-weight: $gl-font-weight-normal;
+        line-height: normal;
 
         &.dropdown-menu-user-link {
           white-space: nowrap;
diff --git a/app/assets/stylesheets/framework/filters.scss b/app/assets/stylesheets/framework/filters.scss
index b2847c348eb..0d80a85d521 100644
--- a/app/assets/stylesheets/framework/filters.scss
+++ b/app/assets/stylesheets/framework/filters.scss
@@ -65,7 +65,7 @@
     display: flex;
     flex: 1;
     -webkit-flex: 1;
-    padding-left: 30px;
+    padding-left: 12px;
     position: relative;
     margin-bottom: 0;
   }
@@ -221,10 +221,6 @@
     box-shadow: 0 0 4px $search-input-focus-shadow-color;
   }
 
-  &.focus .fa-filter {
-    color: $common-gray-dark;
-  }
-
   gl-emoji {
     display: inline-block;
     font-family: inherit;
@@ -251,13 +247,6 @@
     }
   }
 
-  .fa-filter {
-    position: absolute;
-    top: 10px;
-    left: 10px;
-    color: $gray-darkest;
-  }
-
   .fa-times {
     right: 10px;
     color: $gray-darkest;
diff --git a/app/assets/stylesheets/framework/gitlab-theme.scss b/app/assets/stylesheets/framework/gitlab-theme.scss
index 52b87de7a3d..dc591c06c88 100644
--- a/app/assets/stylesheets/framework/gitlab-theme.scss
+++ b/app/assets/stylesheets/framework/gitlab-theme.scss
@@ -216,12 +216,9 @@ body {
             color: $theme-gray-900;
           }
 
-          &.active > a {
+          &.active > a,
+          &.active > a:hover {
             color: $white-light;
-
-            &:hover {
-              color: $white-light;
-            }
           }
         }
       }
diff --git a/app/assets/stylesheets/framework/header.scss b/app/assets/stylesheets/framework/header.scss
index d79444fad79..62ba74ff582 100644
--- a/app/assets/stylesheets/framework/header.scss
+++ b/app/assets/stylesheets/framework/header.scss
@@ -239,10 +239,8 @@
             fill: currentColor;
           }
 
-          &.header-user-dropdown-toggle {
-            .header-user-avatar {
-              border-color: $white-light;
-            }
+          &.header-user-dropdown-toggle .header-user-avatar {
+            border-color: $white-light;
           }
         }
       }
diff --git a/app/assets/stylesheets/framework/variables.scss b/app/assets/stylesheets/framework/variables.scss
index d5ca23ff870..8ab48e4844f 100644
--- a/app/assets/stylesheets/framework/variables.scss
+++ b/app/assets/stylesheets/framework/variables.scss
@@ -9,6 +9,8 @@ $sidebar-transition-duration: .15s;
 $sidebar-breakpoint: 1024px;
 $default-transition-duration: .15s;
 $right-sidebar-transition-duration: .3s;
+$contextual-sidebar-width: 220px;
+$contextual-sidebar-collapsed-width: 50px;
 
 /*
  * Color schema
@@ -359,6 +361,13 @@ $filtered-search-term-shadow-color: rgba(0, 0, 0, 0.09);
 $dropdown-hover-color: $blue-400;
 
 /*
+* Contextual Sidebar
+*/
+$link-active-background: rgba(0, 0, 0, .04);
+$link-hover-background: rgba(0, 0, 0, .06);
+$inactive-badge-background: rgba(0, 0, 0, .08);
+
+/*
 * Buttons
 */
 $btn-active-gray: #ececec;
@@ -404,7 +413,6 @@ $note-targe3-inside: #ffffd3;
 $note-line2-border: #ddd;
 $note-icon-gutter-width: 55px;
 
-
 /*
 * Zen
 */
diff --git a/app/assets/stylesheets/pages/boards.scss b/app/assets/stylesheets/pages/boards.scss
index ca61f7a30c3..91296b354a7 100644
--- a/app/assets/stylesheets/pages/boards.scss
+++ b/app/assets/stylesheets/pages/boards.scss
@@ -414,7 +414,7 @@
   margin: 5px;
 }
 
-.page-with-new-sidebar.page-with-sidebar .issue-boards-sidebar {
+.page-with-contextual-sidebar.page-with-sidebar .issue-boards-sidebar {
   .issuable-sidebar-header {
     position: relative;
   }
diff --git a/app/assets/stylesheets/pages/issuable.scss b/app/assets/stylesheets/pages/issuable.scss
index 48532503263..88600a0e6d3 100644
--- a/app/assets/stylesheets/pages/issuable.scss
+++ b/app/assets/stylesheets/pages/issuable.scss
@@ -542,7 +542,9 @@
 }
 
 .participants-list {
-  margin: -5px;
+  display: flex;
+  flex-wrap: wrap;
+  margin: -7px;
 }
 
 
@@ -553,7 +555,7 @@
 
 .participants-author {
   display: inline-block;
-  padding: 5px;
+  padding: 7px;
 
   &:nth-of-type(7n) {
     padding-right: 0;
diff --git a/app/assets/stylesheets/pages/note_form.scss b/app/assets/stylesheets/pages/note_form.scss
index 04b132415eb..f0cad30f4f3 100644
--- a/app/assets/stylesheets/pages/note_form.scss
+++ b/app/assets/stylesheets/pages/note_form.scss
@@ -249,13 +249,12 @@
       width: 100%;
       padding-right: 5px;
     }
-
   }
 
   .discussion-actions {
     display: table;
 
-    .new-issue-for-discussion path {
+    .btn-default path {
       fill: $gray-darkest;
     }
 
diff --git a/app/assets/stylesheets/pages/notes.scss b/app/assets/stylesheets/pages/notes.scss
index ebad429c2ba..312917bd13a 100644
--- a/app/assets/stylesheets/pages/notes.scss
+++ b/app/assets/stylesheets/pages/notes.scss
@@ -269,7 +269,7 @@ ul.notes {
           display: none;
         }
 
-        &.system-note-commit-list {
+        &.system-note-commit-list:not(.hide-shade) {
           max-height: 70px;
           overflow: hidden;
           display: block;
@@ -291,16 +291,6 @@ ul.notes {
             bottom: 0;
             background: linear-gradient(rgba($white-light, 0.1) -100px, $white-light 100%);
           }
-
-          &.hide-shade {
-            max-height: 100%;
-            overflow: auto;
-
-            &::after {
-              display: none;
-              background: transparent;
-            }
-          }
         }
       }
     }
@@ -466,6 +456,10 @@ ul.notes {
   float: right;
   margin-left: 10px;
   color: $gray-darkest;
+
+  .btn-group > .discussion-next-btn {
+    margin-left: -1px;
+  }
 }
 
 .note-actions {
diff --git a/app/assets/stylesheets/pages/repo.scss b/app/assets/stylesheets/pages/repo.scss
index 97ca01f0f54..1bb4e3cc345 100644
--- a/app/assets/stylesheets/pages/repo.scss
+++ b/app/assets/stylesheets/pages/repo.scss
@@ -1,12 +1,3 @@
-.monaco-loader {
-  position: absolute;
-  top: 0;
-  left: 0;
-  right: 0;
-  bottom: 0;
-  background: $black-transparent;
-}
-
 .modal.popup-dialog {
   display: block;
   background-color: $black-transparent;
@@ -54,6 +45,7 @@
   }
 
   .tree-content-holder {
+    display: -webkit-flex;
     display: flex;
     min-height: 300px;
   }
@@ -63,7 +55,9 @@
   }
 
   .panel-right {
+    display: -webkit-flex;
     display: flex;
+    -webkit-flex-direction: column;
     flex-direction: column;
     width: 80%;
     height: 100%;
@@ -81,10 +75,6 @@
           text-decoration: underline;
         }
       }
-
-      .cursor {
-        display: none !important;
-      }
     }
 
     .blob-no-preview {
@@ -94,21 +84,12 @@
       }
     }
 
-    &.edit-mode {
-      .blob-viewer-container {
-        overflow: hidden;
-      }
-
-      .monaco-editor.vs {
-        .cursor {
-          background: $black;
-          border-color: $black;
-          display: block !important;
-        }
-      }
+    &.blob-editor-container {
+      overflow: hidden;
     }
 
     .blob-viewer-container {
+      -webkit-flex: 1;
       flex: 1;
       overflow: auto;
 
@@ -138,6 +119,7 @@
     }
 
     #tabs {
+      position: relative;
       flex-shrink: 0;
       display: flex;
       width: 100%;
@@ -166,6 +148,10 @@
           vertical-align: middle;
           text-decoration: none;
           margin-right: 12px;
+
+          &:focus {
+            outline: none;
+          }
         }
 
         .close-btn {
@@ -201,7 +187,7 @@
       }
     }
 
-    #repo-file-buttons {
+    .repo-file-buttons {
       background-color: $white-light;
       padding: 5px 10px;
       border-top: 1px solid $white-normal;
@@ -312,23 +298,3 @@
     width: 100%;
   }
 }
-
-@keyframes swipeRightAppear {
-  0% {
-    transform: scaleX(0.00);
-  }
-
-  100% {
-    transform: scaleX(1.00);
-  }
-}
-
-@keyframes swipeRightDissapear {
-  0% {
-    transform: scaleX(1.00);
-  }
-
-  100% {
-    transform: scaleX(0.00);
-  }
-}
diff --git a/app/controllers/confirmations_controller.rb b/app/controllers/confirmations_controller.rb
index 80ab681ed87..bc0948cd3fb 100644
--- a/app/controllers/confirmations_controller.rb
+++ b/app/controllers/confirmations_controller.rb
@@ -10,7 +10,7 @@ class ConfirmationsController < Devise::ConfirmationsController
     users_almost_there_path
   end
 
-  def after_confirmation_path_for(_resource_name, resource)
+  def after_confirmation_path_for(resource_name, resource)
     # incoming resource can either be a :user or an :email
     if signed_in?(:user)
       after_sign_in(resource)
diff --git a/app/controllers/help_controller.rb b/app/controllers/help_controller.rb
index 572915a4930..38f379dbf4f 100644
--- a/app/controllers/help_controller.rb
+++ b/app/controllers/help_controller.rb
@@ -57,6 +57,10 @@ class HelpController < ApplicationController
   def shortcuts
   end
 
+  def instance_configuration
+    @instance_configuration = InstanceConfiguration.new
+  end
+
   def ui
     @user = User.new(id: 0, name: 'John Doe', username: '@johndoe')
   end
diff --git a/app/controllers/projects/blob_controller.rb b/app/controllers/projects/blob_controller.rb
index 183a6f88a6a..770381472c5 100644
--- a/app/controllers/projects/blob_controller.rb
+++ b/app/controllers/projects/blob_controller.rb
@@ -205,6 +205,7 @@ class Projects::BlobController < Projects::ApplicationController
     tree_path = path_segments.join('/')
 
     render json: json.merge(
+      id: @blob.id,
       path: blob.path,
       name: blob.name,
       extension: blob.extension,
diff --git a/app/controllers/projects/branches_controller.rb b/app/controllers/projects/branches_controller.rb
index 7f03ce07dec..f28df83d5a5 100644
--- a/app/controllers/projects/branches_controller.rb
+++ b/app/controllers/projects/branches_controller.rb
@@ -15,6 +15,8 @@ class Projects::BranchesController < Projects::ApplicationController
     respond_to do |format|
       format.html do
         @refs_pipelines = @project.pipelines.latest_successful_for_refs(@branches.map(&:name))
+        @merged_branch_names =
+          repository.merged_branch_names(@branches.map(&:name))
         # n+1: https://gitlab.com/gitlab-org/gitlab-ce/issues/37429
         Gitlab::GitalyClient.allow_n_plus_1_calls do
           @max_commits = @branches.reduce(0) do |memo, branch|
diff --git a/app/controllers/projects/group_links_controller.rb b/app/controllers/projects/group_links_controller.rb
index f59200d3b1f..dbc1c8bcc28 100644
--- a/app/controllers/projects/group_links_controller.rb
+++ b/app/controllers/projects/group_links_controller.rb
@@ -12,12 +12,7 @@ class Projects::GroupLinksController < Projects::ApplicationController
 
     if group
       return render_404 unless can?(current_user, :read_group, group)
-
-      project.project_group_links.create(
-        group: group,
-        group_access: params[:link_group_access],
-        expires_at: params[:expires_at]
-      )
+      Projects::GroupLinks::CreateService.new(project, current_user, group_link_create_params).execute(group)
     else
       flash[:alert] = 'Please select a group.'
     end
@@ -32,7 +27,9 @@ class Projects::GroupLinksController < Projects::ApplicationController
   end
 
   def destroy
-    project.project_group_links.find(params[:id]).destroy
+    group_link = project.project_group_links.find(params[:id])
+
+    ::Projects::GroupLinks::DestroyService.new(project, current_user).execute(group_link)
 
     respond_to do |format|
       format.html do
@@ -47,4 +44,8 @@ class Projects::GroupLinksController < Projects::ApplicationController
   def group_link_params
     params.require(:group_link).permit(:group_access, :expires_at)
   end
+
+  def group_link_create_params
+    params.permit(:link_group_access, :expires_at)
+  end
 end
diff --git a/app/controllers/projects/issues_controller.rb b/app/controllers/projects/issues_controller.rb
index b7a108a0ebd..6a5e4538717 100644
--- a/app/controllers/projects/issues_controller.rb
+++ b/app/controllers/projects/issues_controller.rb
@@ -16,7 +16,7 @@ class Projects::IssuesController < Projects::ApplicationController
   before_action :authorize_create_issue!, only: [:new, :create]
 
   # Allow modify issue
-  before_action :authorize_update_issue!, only: [:update, :move]
+  before_action :authorize_update_issue!, only: [:edit, :update, :move]
 
   # Allow create a new branch and empty WIP merge request from current issue
   before_action :authorize_create_merge_request!, only: [:create_merge_request]
@@ -63,6 +63,10 @@ class Projects::IssuesController < Projects::ApplicationController
     respond_with(@issue)
   end
 
+  def edit
+    respond_with(@issue)
+  end
+
   def show
     @noteable = @issue
     @note     = @project.notes.new(noteable: @issue)
@@ -70,7 +74,7 @@ class Projects::IssuesController < Projects::ApplicationController
     respond_to do |format|
       format.html
       format.json do
-        render json: serializer.represent(@issue)
+        render json: serializer.represent(@issue, serializer: params[:serializer])
       end
     end
   end
@@ -122,6 +126,10 @@ class Projects::IssuesController < Projects::ApplicationController
     @issue = Issues::UpdateService.new(project, current_user, update_params).execute(issue)
 
     respond_to do |format|
+      format.html do
+        recaptcha_check_with_fallback { render :edit }
+      end
+
       format.json do
         render_issue_json
       end
diff --git a/app/controllers/projects/merge_requests_controller.rb b/app/controllers/projects/merge_requests_controller.rb
index c5204080333..2b0294c8387 100644
--- a/app/controllers/projects/merge_requests_controller.rb
+++ b/app/controllers/projects/merge_requests_controller.rb
@@ -83,7 +83,7 @@ class Projects::MergeRequestsController < Projects::MergeRequests::ApplicationCo
       format.json do
         Gitlab::PollingInterval.set_header(response, interval: 10_000)
 
-        render json: serializer.represent(@merge_request, basic: params[:basic])
+        render json: serializer.represent(@merge_request, serializer: params[:serializer])
       end
 
       format.patch  do
diff --git a/app/controllers/projects/milestones_controller.rb b/app/controllers/projects/milestones_controller.rb
index c94384d2a1a..980bbf699b6 100644
--- a/app/controllers/projects/milestones_controller.rb
+++ b/app/controllers/projects/milestones_controller.rb
@@ -2,13 +2,13 @@ class Projects::MilestonesController < Projects::ApplicationController
   include MilestoneActions
 
   before_action :check_issuables_available!
-  before_action :milestone, only: [:edit, :update, :destroy, :show, :merge_requests, :participants, :labels]
+  before_action :milestone, only: [:edit, :update, :destroy, :show, :merge_requests, :participants, :labels, :promote]
 
   # Allow read any milestone
   before_action :authorize_read_milestone!
 
   # Allow admin milestone
-  before_action :authorize_admin_milestone!, except: [:index, :show, :merge_requests, :participants, :labels]
+  before_action :authorize_admin_milestone!, except: [:index, :show, :merge_requests, :participants, :labels, :promote]
 
   respond_to :html
 
@@ -69,6 +69,14 @@ class Projects::MilestonesController < Projects::ApplicationController
     end
   end
 
+  def promote
+    promoted_milestone = Milestones::PromoteService.new(project, current_user).execute(milestone)
+    flash[:notice] = "Milestone has been promoted to group milestone."
+    redirect_to group_milestone_path(project.group, promoted_milestone.iid)
+  rescue Milestones::PromoteService::PromoteMilestoneError => error
+    redirect_to milestone, alert: error.message
+  end
+
   def destroy
     return access_denied! unless can?(current_user, :admin_milestone, @project)
 
diff --git a/app/controllers/projects/tree_controller.rb b/app/controllers/projects/tree_controller.rb
index 756f7e5df8c..f3719059f88 100644
--- a/app/controllers/projects/tree_controller.rb
+++ b/app/controllers/projects/tree_controller.rb
@@ -36,7 +36,6 @@ class Projects::TreeController < Projects::ApplicationController
 
       format.json do
         page_title @path.presence || _("Files"), @ref, @project.name_with_namespace
-        response.header['is-root'] = @path.empty?
 
         # n+1: https://gitlab.com/gitlab-org/gitlab-ce/issues/38261
         Gitlab::GitalyClient.allow_n_plus_1_calls do
diff --git a/app/finders/branches_finder.rb b/app/finders/branches_finder.rb
index 533076585c0..852eac3647d 100644
--- a/app/finders/branches_finder.rb
+++ b/app/finders/branches_finder.rb
@@ -23,7 +23,7 @@ class BranchesFinder
 
   def filter_by_name(branches)
     if search
-      branches.select { |branch| branch.name.include?(search) }
+      branches.select { |branch| branch.name.upcase.include?(search.upcase) }
     else
       branches
     end
diff --git a/app/helpers/application_settings_helper.rb b/app/helpers/application_settings_helper.rb
index 467daf0d99a..2b6ecad81c6 100644
--- a/app/helpers/application_settings_helper.rb
+++ b/app/helpers/application_settings_helper.rb
@@ -120,6 +120,15 @@ module ApplicationSettingsHelper
     message.html_safe
   end
 
+  def circuitbreaker_access_retries_help_text
+    _('The number of attempts GitLab will make to access a storage.')
+  end
+
+  def circuitbreaker_backoff_threshold_help_text
+    _("The number of failures after which GitLab will start temporarily "\
+      "disabling access to a storage shard on a host")
+  end
+
   def circuitbreaker_failure_wait_time_help_text
     _("When access to a storage fails. GitLab will prevent access to the "\
       "storage for the time specified here. This allows the filesystem to "\
@@ -144,6 +153,8 @@ module ApplicationSettingsHelper
       :akismet_api_key,
       :akismet_enabled,
       :auto_devops_enabled,
+      :circuitbreaker_access_retries,
+      :circuitbreaker_backoff_threshold,
       :circuitbreaker_failure_count_threshold,
       :circuitbreaker_failure_reset_time,
       :circuitbreaker_failure_wait_time,
diff --git a/app/helpers/instance_configuration_helper.rb b/app/helpers/instance_configuration_helper.rb
new file mode 100644
index 00000000000..cee319f20bc
--- /dev/null
+++ b/app/helpers/instance_configuration_helper.rb
@@ -0,0 +1,18 @@
+module InstanceConfigurationHelper
+  def instance_configuration_cell_html(value, &block)
+    return '-' unless value.to_s.presence
+
+    block_given? ? yield(value) : value
+  end
+
+  def instance_configuration_host(host)
+    @instance_configuration_host ||= instance_configuration_cell_html(host).capitalize
+  end
+
+  # Value must be in bytes
+  def instance_configuration_human_size_cell(value)
+    instance_configuration_cell_html(value) do |v|
+      number_to_human_size(v, strip_insignificant_zeros: true, significant: false)
+    end
+  end
+end
diff --git a/app/helpers/issuables_helper.rb b/app/helpers/issuables_helper.rb
index baa2d6e375e..d0069cd48cf 100644
--- a/app/helpers/issuables_helper.rb
+++ b/app/helpers/issuables_helper.rb
@@ -33,15 +33,17 @@ module IssuablesHelper
   end
 
   def serialize_issuable(issuable)
-    case issuable
-    when Issue
-      IssueSerializer.new(current_user: current_user, project: issuable.project).represent(issuable).to_json
-    when MergeRequest
-      MergeRequestSerializer
-        .new(current_user: current_user, project: issuable.project)
-        .represent(issuable)
-        .to_json
-    end
+    serializer_klass = case issuable
+                       when Issue
+                         IssueSerializer
+                       when MergeRequest
+                         MergeRequestSerializer
+                       end
+
+    serializer_klass
+      .new(current_user: current_user, project: issuable.project)
+      .represent(issuable)
+      .to_json
   end
 
   def template_dropdown_tag(issuable, &block)
@@ -357,7 +359,8 @@ module IssuablesHelper
 
   def issuable_sidebar_options(issuable, can_edit_issuable)
     {
-      endpoint: "#{issuable_json_path(issuable)}?basic=true",
+      endpoint: "#{issuable_json_path(issuable)}?serializer=sidebar",
+      toggleSubscriptionEndpoint: toggle_subscription_path(issuable),
       moveIssueEndpoint: move_namespace_project_issue_path(namespace_id: issuable.project.namespace.to_param, project_id: issuable.project, id: issuable),
       projectsAutocompleteEndpoint: autocomplete_projects_path(project_id: @project.id),
       editable: can_edit_issuable,
diff --git a/app/helpers/nav_helper.rb b/app/helpers/nav_helper.rb
index a23a43c9f43..8ada746b244 100644
--- a/app/helpers/nav_helper.rb
+++ b/app/helpers/nav_helper.rb
@@ -1,7 +1,7 @@
 module NavHelper
   def page_with_sidebar_class
     class_name = page_gutter_class
-    class_name << 'page-with-new-sidebar' if defined?(@left_sidebar) && @left_sidebar
+    class_name << 'page-with-contextual-sidebar' if defined?(@left_sidebar) && @left_sidebar
     class_name << 'page-with-icon-sidebar' if collapsed_sidebar? && @left_sidebar
 
     class_name
@@ -19,11 +19,7 @@ module NavHelper
       end
     elsif current_path?('jobs#show')
       %w[page-gutter build-sidebar right-sidebar-expanded]
-    elsif current_path?('wikis#show') ||
-        current_path?('wikis#edit') ||
-        current_path?('wikis#update') ||
-        current_path?('wikis#history') ||
-        current_path?('wikis#git_access')
+    elsif current_controller?('wikis') && current_action?('show', 'create', 'edit', 'update', 'history', 'git_access')
       %w[page-gutter wiki-sidebar right-sidebar-expanded]
     else
       []
diff --git a/app/helpers/storage_health_helper.rb b/app/helpers/storage_health_helper.rb
index 544c9efb845..4d2180f7eee 100644
--- a/app/helpers/storage_health_helper.rb
+++ b/app/helpers/storage_health_helper.rb
@@ -16,17 +16,16 @@ module StorageHealthHelper
   def message_for_circuit_breaker(circuit_breaker)
     maximum_failures = circuit_breaker.failure_count_threshold
     current_failures = circuit_breaker.failure_count
-    permanently_broken = circuit_breaker.circuit_broken? && current_failures >= maximum_failures
 
     translation_params = { number_of_failures: current_failures,
                            maximum_failures: maximum_failures,
                            number_of_seconds: circuit_breaker.failure_wait_time }
 
-    if permanently_broken
+    if circuit_breaker.circuit_broken?
       s_("%{number_of_failures} of %{maximum_failures} failures. GitLab will not "\
          "retry automatically. Reset storage information when the problem is "\
          "resolved.") % translation_params
-    elsif circuit_breaker.circuit_broken?
+    elsif circuit_breaker.backing_off?
       _("%{number_of_failures} of %{maximum_failures} failures. GitLab will "\
         "block access for %{number_of_seconds} seconds.") % translation_params
     else
diff --git a/app/models/application_setting.rb b/app/models/application_setting.rb
index 90cdcef991f..5b859fd3e1e 100644
--- a/app/models/application_setting.rb
+++ b/app/models/application_setting.rb
@@ -153,20 +153,32 @@ class ApplicationSetting < ActiveRecord::Base
             presence: true,
             numericality: { greater_than_or_equal_to: 0 }
 
-  validates :circuitbreaker_failure_count_threshold,
+  validates :circuitbreaker_backoff_threshold,
+            :circuitbreaker_failure_count_threshold,
             :circuitbreaker_failure_wait_time,
             :circuitbreaker_failure_reset_time,
             :circuitbreaker_storage_timeout,
             presence: true,
             numericality: { only_integer: true, greater_than_or_equal_to: 0 }
 
-  validates :gitaly_timeout_default,
+  validates :circuitbreaker_access_retries,
             presence: true,
-            numericality: { only_integer: true, greater_than: 0 }
+            numericality: { only_integer: true, greater_than_or_equal_to: 1 }
+
+  validates_each :circuitbreaker_backoff_threshold do |record, attr, value|
+    if value.to_i >= record.circuitbreaker_failure_count_threshold
+      record.errors.add(attr, _("The circuitbreaker backoff threshold should be "\
+                                "lower than the failure count threshold"))
+    end
+  end
+
+  validates :gitaly_timeout_default,
+    presence: true,
+    numericality: { only_integer: true, greater_than: 0 }
 
   validates :gitaly_timeout_fast,
-            presence: true,
-            numericality: { only_integer: true, greater_than: 0, less_than_or_equal_to: :gitaly_timeout_default }
+    presence: true,
+    numericality: { only_integer: true, greater_than: 0, less_than_or_equal_to: :gitaly_timeout_default }
 
   SUPPORTED_KEY_TYPES.each do |type|
     validates :"#{type}_key_restriction", presence: true, key_restriction: { type: type }
@@ -418,7 +430,7 @@ class ApplicationSetting < ActiveRecord::Base
   #   the enabling/disabling is `performance_bar_allowed_group_id`
   # - If `enable` is false, we set `performance_bar_allowed_group_id` to `nil`
   def performance_bar_enabled=(enable)
-    return if enable
+    return if Gitlab::Utils.to_boolean(enable)
 
     self.performance_bar_allowed_group_id = nil
   end
diff --git a/app/models/ci/pipeline.rb b/app/models/ci/pipeline.rb
index cf3ce3c9e54..ca65e81f27a 100644
--- a/app/models/ci/pipeline.rb
+++ b/app/models/ci/pipeline.rb
@@ -249,9 +249,7 @@ module Ci
     end
 
     def commit
-      @commit ||= project.commit(sha)
-    rescue
-      nil
+      @commit ||= project.commit_by(oid: sha)
     end
 
     def branch?
diff --git a/app/models/concerns/subscribable.rb b/app/models/concerns/subscribable.rb
index 274b38a7708..f478c8ede18 100644
--- a/app/models/concerns/subscribable.rb
+++ b/app/models/concerns/subscribable.rb
@@ -13,6 +13,8 @@ module Subscribable
   end
 
   def subscribed?(user, project = nil)
+    return false unless user
+
     if subscription = subscriptions.find_by(user: user, project: project)
       subscription.subscribed
     else
diff --git a/app/models/email.rb b/app/models/email.rb
index 384f38f2db7..2da8b050149 100644
--- a/app/models/email.rb
+++ b/app/models/email.rb
@@ -14,6 +14,8 @@ class Email < ActiveRecord::Base
   devise :confirmable
   self.reconfirmable = false  # currently email can't be changed, no need to reconfirm
 
+  delegate :username, to: :user
+
   def email=(value)
     write_attribute(:email, value.downcase.strip)
   end
diff --git a/app/models/environment.rb b/app/models/environment.rb
index b6868ccbe8f..e613d21add6 100644
--- a/app/models/environment.rb
+++ b/app/models/environment.rb
@@ -110,7 +110,7 @@ class Environment < ActiveRecord::Base
   end
 
   def ref_path
-    "refs/#{Repository::REF_ENVIRONMENTS}/#{Shellwords.shellescape(name)}"
+    "refs/#{Repository::REF_ENVIRONMENTS}/#{generate_slug}"
   end
 
   def formatted_external_url
diff --git a/app/models/identity.rb b/app/models/identity.rb
index 920a25932b4..ac8094b610e 100644
--- a/app/models/identity.rb
+++ b/app/models/identity.rb
@@ -7,7 +7,10 @@ class Identity < ActiveRecord::Base
   validates :extern_uid, allow_blank: true, uniqueness: { scope: :provider }
   validates :user_id, uniqueness: { scope: :provider }
 
-  scope :with_extern_uid, ->(provider, extern_uid) { where(extern_uid: extern_uid, provider: provider) }
+  scope :with_extern_uid, ->(provider, extern_uid) do
+    extern_uid = Gitlab::LDAP::Person.normalize_dn(extern_uid) if provider.starts_with?('ldap')
+    where(extern_uid: extern_uid, provider: provider)
+  end
 
   def ldap?
     provider.starts_with?('ldap')
diff --git a/app/models/instance_configuration.rb b/app/models/instance_configuration.rb
new file mode 100644
index 00000000000..b30b707e5fe
--- /dev/null
+++ b/app/models/instance_configuration.rb
@@ -0,0 +1,71 @@
+require 'resolv'
+
+class InstanceConfiguration
+  SSH_ALGORITHMS = %w(DSA ECDSA ED25519 RSA).freeze
+  SSH_ALGORITHMS_PATH = '/etc/ssh/'.freeze
+  CACHE_KEY = 'instance_configuration'.freeze
+  EXPIRATION_TIME = 24.hours
+
+  def settings
+    @configuration ||= Rails.cache.fetch(CACHE_KEY, expires_in: EXPIRATION_TIME) do
+      { ssh_algorithms_hashes: ssh_algorithms_hashes,
+        host: host,
+        gitlab_pages: gitlab_pages,
+        gitlab_ci: gitlab_ci }.deep_symbolize_keys
+    end
+  end
+
+  private
+
+  def ssh_algorithms_hashes
+    SSH_ALGORITHMS.map { |algo| ssh_algorithm_hashes(algo) }.compact
+  end
+
+  def host
+    Settings.gitlab.host
+  end
+
+  def gitlab_pages
+    Settings.pages.to_h.merge(ip_address: resolv_dns(Settings.pages.host))
+  end
+
+  def resolv_dns(dns)
+    Resolv.getaddress(dns)
+  rescue Resolv::ResolvError
+  end
+
+  def gitlab_ci
+    Settings.gitlab_ci
+            .to_h
+            .merge(artifacts_max_size: { value: Settings.artifacts.max_size&.megabytes,
+                                         default: 100.megabytes })
+  end
+
+  def ssh_algorithm_file(algorithm)
+    File.join(SSH_ALGORITHMS_PATH, "ssh_host_#{algorithm.downcase}_key.pub")
+  end
+
+  def ssh_algorithm_hashes(algorithm)
+    content = ssh_algorithm_file_content(algorithm)
+    return unless content.present?
+
+    { name: algorithm,
+      md5: ssh_algorithm_md5(content),
+      sha256: ssh_algorithm_sha256(content) }
+  end
+
+  def ssh_algorithm_file_content(algorithm)
+    file = ssh_algorithm_file(algorithm)
+    return unless File.exist?(file)
+
+    File.read(file)
+  end
+
+  def ssh_algorithm_md5(ssh_file_content)
+    OpenSSL::Digest::MD5.hexdigest(ssh_file_content).scan(/../).join(':')
+  end
+
+  def ssh_algorithm_sha256(ssh_file_content)
+    OpenSSL::Digest::SHA256.hexdigest(ssh_file_content)
+  end
+end
diff --git a/app/models/merge_request.rb b/app/models/merge_request.rb
index c3fae16d109..d45b9c805a4 100644
--- a/app/models/merge_request.rb
+++ b/app/models/merge_request.rb
@@ -396,6 +396,10 @@ class MergeRequest < ActiveRecord::Base
   end
 
   def merge_ongoing?
+    # While the MergeRequest is locked, it should present itself as 'merge ongoing'.
+    # The unlocking process is handled by StuckMergeJobsWorker scheduled in Cron.
+    return true if locked?
+
     !!merge_jid && !merged? && Gitlab::SidekiqStatus.running?(merge_jid)
   end
 
@@ -874,7 +878,7 @@ class MergeRequest < ActiveRecord::Base
   #
   def all_commit_shas
     if persisted?
-      column_shas = MergeRequestDiffCommit.where(merge_request_diff: merge_request_diffs).pluck('DISTINCT(sha)')
+      column_shas = MergeRequestDiffCommit.where(merge_request_diff: merge_request_diffs).limit(10_000).pluck('sha')
       serialised_shas = merge_request_diffs.where.not(st_commits: nil).flat_map(&:commit_shas)
 
       (column_shas + serialised_shas).uniq
diff --git a/app/models/merge_request_diff_commit.rb b/app/models/merge_request_diff_commit.rb
index 670b26d4ca3..b75387e236e 100644
--- a/app/models/merge_request_diff_commit.rb
+++ b/app/models/merge_request_diff_commit.rb
@@ -17,7 +17,9 @@ class MergeRequestDiffCommit < ActiveRecord::Base
       commit_hash.merge(
         merge_request_diff_id: merge_request_diff_id,
         relative_order: index,
-        sha: sha_attribute.type_cast_for_database(sha)
+        sha: sha_attribute.type_cast_for_database(sha),
+        authored_date: Gitlab::Database.sanitize_timestamp(commit_hash[:authored_date]),
+        committed_date: Gitlab::Database.sanitize_timestamp(commit_hash[:committed_date])
       )
     end
 
diff --git a/app/models/pages_domain.rb b/app/models/pages_domain.rb
index 5d798247863..2e824cda525 100644
--- a/app/models/pages_domain.rb
+++ b/app/models/pages_domain.rb
@@ -16,9 +16,9 @@ class PagesDomain < ActiveRecord::Base
     key: Gitlab::Application.secrets.db_key_base,
     algorithm: 'aes-256-cbc'
 
-  after_create :update
-  after_save :update
-  after_destroy :update
+  after_create :update_daemon
+  after_save :update_daemon
+  after_destroy :update_daemon
 
   def to_param
     domain
@@ -80,7 +80,7 @@ class PagesDomain < ActiveRecord::Base
 
   private
 
-  def update
+  def update_daemon
     ::Projects::UpdatePagesConfigurationService.new(project).execute
   end
 
diff --git a/app/models/project.rb b/app/models/project.rb
index 4689b588906..413866b994a 100644
--- a/app/models/project.rb
+++ b/app/models/project.rb
@@ -26,7 +26,15 @@ class Project < ActiveRecord::Base
 
   NUMBER_OF_PERMITTED_BOARDS = 1
   UNKNOWN_IMPORT_URL = 'http://unknown.git'.freeze
-  LATEST_STORAGE_VERSION = 1
+  # Hashed Storage versions handle rolling out new storage to project and dependents models:
+  # nil: legacy
+  # 1: repository
+  # 2: attachments
+  LATEST_STORAGE_VERSION = 2
+  HASHED_STORAGE_FEATURES = {
+    repository: 1,
+    attachments: 2
+  }.freeze
 
   cache_markdown_field :description, pipeline: :description
 
@@ -120,6 +128,7 @@ class Project < ActiveRecord::Base
   has_one :mock_deployment_service
   has_one :mock_monitoring_service
   has_one :microsoft_teams_service
+  has_one :packagist_service
 
   # TODO: replace these relations with the fork network versions
   has_one  :forked_project_link,  foreign_key: "forked_to_project_id"
@@ -540,6 +549,10 @@ class Project < ActiveRecord::Base
     repository.commit(ref)
   end
 
+  def commit_by(oid:)
+    repository.commit_by(oid: oid)
+  end
+
   # ref can't be HEAD, can only be branch/tag name or SHA
   def latest_successful_builds_for(ref = default_branch)
     latest_pipeline = pipelines.latest_successful_for(ref)
@@ -553,7 +566,7 @@ class Project < ActiveRecord::Base
 
   def merge_base_commit(first_commit_id, second_commit_id)
     sha = repository.merge_base(first_commit_id, second_commit_id)
-    repository.commit(sha) if sha
+    commit_by(oid: sha) if sha
   end
 
   def saved?
@@ -1079,6 +1092,7 @@ class Project < ActiveRecord::Base
 
   def hook_attrs(backward: true)
     attrs = {
+      id: id,
       name: name,
       description: description,
       web_url: web_url,
@@ -1390,6 +1404,19 @@ class Project < ActiveRecord::Base
     end
   end
 
+  def after_rename_repo
+    path_before_change = previous_changes['path'].first
+
+    # We need to check if project had been rolled out to move resource to hashed storage or not and decide
+    # if we need execute any take action or no-op.
+
+    unless hashed_storage?(:attachments)
+      Gitlab::UploadsTransfer.new.rename_project(path_before_change, self.path, namespace.full_path)
+    end
+
+    Gitlab::PagesTransfer.new.rename_project(path_before_change, self.path, namespace.full_path)
+  end
+
   def rename_repo_notify!
     send_move_instructions(full_path_was)
     expires_full_path_cache
@@ -1400,13 +1427,6 @@ class Project < ActiveRecord::Base
     reload_repository!
   end
 
-  def after_rename_repo
-    path_before_change = previous_changes['path'].first
-
-    Gitlab::UploadsTransfer.new.rename_project(path_before_change, self.path, namespace.full_path)
-    Gitlab::PagesTransfer.new.rename_project(path_before_change, self.path, namespace.full_path)
-  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)
@@ -1596,8 +1616,13 @@ class Project < ActiveRecord::Base
     [nil, 0].include?(self.storage_version)
   end
 
-  def hashed_storage?
-    self.storage_version && self.storage_version >= 1
+  # Check if Hashed Storage is enabled for the project with at least informed feature rolled out
+  #
+  # @param [Symbol] feature that needs to be rolled out for the project (:repository, :attachments)
+  def hashed_storage?(feature)
+    raise ArgumentError, "Invalid feature" unless HASHED_STORAGE_FEATURES.include?(feature)
+
+    self.storage_version && self.storage_version >= HASHED_STORAGE_FEATURES[feature]
   end
 
   def renamed?
@@ -1633,7 +1658,7 @@ class Project < ActiveRecord::Base
   end
 
   def migrate_to_hashed_storage!
-    return if hashed_storage?
+    return if hashed_storage?(:repository)
 
     update!(repository_read_only: true)
 
@@ -1658,7 +1683,7 @@ class Project < ActiveRecord::Base
 
   def storage
     @storage ||=
-      if hashed_storage?
+      if hashed_storage?(:repository)
         Storage::HashedProject.new(self)
       else
         Storage::LegacyProject.new(self)
diff --git a/app/models/project_services/jira_service.rb b/app/models/project_services/jira_service.rb
index 9ee3a533c1e..b487378edd2 100644
--- a/app/models/project_services/jira_service.rb
+++ b/app/models/project_services/jira_service.rb
@@ -3,6 +3,8 @@ class JiraService < IssueTrackerService
 
   validates :url, url: true, presence: true, if: :activated?
   validates :api_url, url: true, allow_blank: true
+  validates :username, presence: true, if: :activated?
+  validates :password, presence: true, if: :activated?
 
   prop_accessor :username, :password, :url, :api_url, :jira_issue_transition_id, :title, :description
 
diff --git a/app/models/project_services/kubernetes_service.rb b/app/models/project_services/kubernetes_service.rb
index 8ba07173c74..5c0b3338a62 100644
--- a/app/models/project_services/kubernetes_service.rb
+++ b/app/models/project_services/kubernetes_service.rb
@@ -153,7 +153,10 @@ class KubernetesService < DeploymentService
   end
 
   def default_namespace
-    "#{project.path}-#{project.id}" if project.present?
+    return unless project
+
+    slug = "#{project.path}-#{project.id}".downcase
+    slug.gsub(/[^-a-z0-9]/, '-').gsub(/^-+/, '')
   end
 
   def build_kubeclient!(api_path: 'api', api_version: 'v1')
diff --git a/app/models/project_services/packagist_service.rb b/app/models/project_services/packagist_service.rb
new file mode 100644
index 00000000000..f68a0c1a3c3
--- /dev/null
+++ b/app/models/project_services/packagist_service.rb
@@ -0,0 +1,65 @@
+class PackagistService < Service
+  include HTTParty
+
+  prop_accessor :username, :token, :server
+
+  validates :username, presence: true, if: :activated?
+  validates :token, presence: true, if: :activated?
+
+  default_value_for :push_events, true
+  default_value_for :tag_push_events, true
+
+  after_save :compose_service_hook, if: :activated?
+
+  def title
+    'Packagist'
+  end
+
+  def description
+    'Update your project on Packagist, the main Composer repository'
+  end
+
+  def self.to_param
+    'packagist'
+  end
+
+  def fields
+    [
+      { type: 'text', name: 'username', placeholder: '', required: true },
+      { type: 'text', name: 'token', placeholder: '', required: true },
+      { type: 'text', name: 'server', placeholder: 'https://packagist.org', required: false }
+    ]
+  end
+
+  def self.supported_events
+    %w(push merge_request tag_push)
+  end
+
+  def execute(data)
+    return unless supported_events.include?(data[:object_kind])
+
+    service_hook.execute(data)
+  end
+
+  def test(data)
+    begin
+      result = execute(data)
+      return { success: false, result: result[:message] } if result[:http_status] != 202
+    rescue StandardError => error
+      return { success: false, result: error }
+    end
+
+    { success: true, result: result[:message] }
+  end
+
+  def compose_service_hook
+    hook = service_hook || build_service_hook
+    hook.url = hook_url
+    hook.save
+  end
+
+  def hook_url
+    base_url = server.present? ? server : 'https://packagist.org'
+    "#{base_url}/api/update-package?username=#{username}&apiToken=#{token}"
+  end
+end
diff --git a/app/models/repository.rb b/app/models/repository.rb
index 4324ea46aac..44a1e9ce529 100644
--- a/app/models/repository.rb
+++ b/app/models/repository.rb
@@ -76,6 +76,7 @@ class Repository
     @full_path = full_path
     @disk_path = disk_path || full_path
     @project = project
+    @commit_cache = {}
   end
 
   def ==(other)
@@ -103,18 +104,17 @@ class Repository
 
   def commit(ref = 'HEAD')
     return nil unless exists?
+    return ref if ref.is_a?(::Commit)
 
-    commit =
-      if ref.is_a?(Gitlab::Git::Commit)
-        ref
-      else
-        Gitlab::Git::Commit.find(raw_repository, ref)
-      end
+    find_commit(ref)
+  end
 
-    commit = ::Commit.new(commit, @project) if commit
-    commit
-  rescue Rugged::OdbError, Rugged::TreeError
-    nil
+  # Finding a commit by the passed SHA
+  # Also takes care of caching, based on the SHA
+  def commit_by(oid:)
+    return @commit_cache[oid] if @commit_cache.key?(oid)
+
+    @commit_cache[oid] = find_commit(oid)
   end
 
   def commits(ref, path: nil, limit: nil, offset: nil, skip_merges: false, after: nil, before: nil)
@@ -231,7 +231,7 @@ class Repository
   # branches or tags, but we want to keep some of these commits around, for
   # example if they have comments or CI builds.
   def keep_around(sha)
-    return unless sha && commit(sha)
+    return unless sha && commit_by(oid: sha)
 
     return if kept_around?(sha)
 
@@ -862,22 +862,12 @@ class Repository
   end
 
   def ff_merge(user, source, target_branch, merge_request: nil)
-    our_commit = rugged.branches[target_branch].target
-    their_commit =
-      if source.is_a?(Gitlab::Git::Commit)
-        source.raw_commit
-      else
-        rugged.lookup(source)
-      end
-
-    raise 'Invalid merge target' if our_commit.nil?
-    raise 'Invalid merge source' if their_commit.nil?
+    their_commit_id = commit(source)&.id
+    raise 'Invalid merge source' if their_commit_id.nil?
 
-    with_branch(user, target_branch) do |start_commit|
-      merge_request&.update(in_progress_merge_commit_sha: their_commit.oid)
+    merge_request&.update(in_progress_merge_commit_sha: their_commit_id)
 
-      their_commit.oid
-    end
+    with_cache_hooks { raw.ff_merge(user, their_commit_id, target_branch) }
   end
 
   def revert(
@@ -912,18 +902,27 @@ class Repository
     end
   end
 
-  def merged_to_root_ref?(branch_name)
-    branch_commit = commit(branch_name)
-    root_ref_commit = commit(root_ref)
+  def merged_to_root_ref?(branch_or_name, pre_loaded_merged_branches = nil)
+    branch = Gitlab::Git::Branch.find(self, branch_or_name)
 
-    if branch_commit
-      same_head = branch_commit.id == root_ref_commit.id
-      !same_head && ancestor?(branch_commit.id, root_ref_commit.id)
+    if branch
+      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)
+        end
+
+      !same_head && merged
     else
       nil
     end
   end
 
+  delegate :merged_branch_names, to: :raw_repository
+
   def merge_base(first_commit_id, second_commit_id)
     first_commit_id = commit(first_commit_id).try(:id) || first_commit_id
     second_commit_id = commit(second_commit_id).try(:id) || second_commit_id
@@ -1031,6 +1030,10 @@ class Repository
     if instance_variable_defined?(ivar)
       instance_variable_get(ivar)
     else
+      # If the repository doesn't exist and a fallback was specified we return
+      # that value inmediately. This saves us Rugged/gRPC invocations.
+      return fallback unless fallback.nil? || exists?
+
       begin
         value =
           if memoize_only
@@ -1040,8 +1043,9 @@ class Repository
           end
         instance_variable_set(ivar, value)
       rescue Rugged::ReferenceError, Gitlab::Git::Repository::NoRepository
-        # if e.g. HEAD or the entire repository doesn't exist we want to
-        # gracefully handle this and not cache anything.
+        # Even if the above `#exists?` check passes these errors might still
+        # occur (for example because of a non-existing HEAD). We want to
+        # gracefully handle this and not cache anything
         fallback
       end
     end
@@ -1069,6 +1073,18 @@ class Repository
 
   private
 
+  # TODO Generice finder, later split this on finders by Ref or Oid
+  # gitlab-org/gitlab-ce#39239
+  def find_commit(oid_or_ref)
+    commit = if oid_or_ref.is_a?(Gitlab::Git::Commit)
+               oid_or_ref
+             else
+               Gitlab::Git::Commit.find(raw_repository, oid_or_ref)
+             end
+
+    ::Commit.new(commit, @project) if commit
+  end
+
   def blob_data_at(sha, path)
     blob = blob_at(sha, path)
     return unless blob
@@ -1107,12 +1123,12 @@ class Repository
 
   def last_commit_for_path_by_gitaly(sha, path)
     c = raw_repository.gitaly_commit_client.last_commit_for_path(sha, path)
-    commit(c)
+    commit_by(oid: c)
   end
 
   def last_commit_for_path_by_rugged(sha, path)
     sha = last_commit_id_for_path_by_shelling_out(sha, path)
-    commit(sha)
+    commit_by(oid: sha)
   end
 
   def last_commit_id_for_path_by_shelling_out(sha, path)
diff --git a/app/models/service.rb b/app/models/service.rb
index 6b64079215f..fdd2605e3e3 100644
--- a/app/models/service.rb
+++ b/app/models/service.rb
@@ -238,6 +238,7 @@ class Service < ActiveRecord::Base
       kubernetes
       mattermost_slash_commands
       mattermost
+      packagist
       pipelines_email
       pivotaltracker
       prometheus
diff --git a/app/serializers/issuable_sidebar_entity.rb b/app/serializers/issuable_sidebar_entity.rb
new file mode 100644
index 00000000000..ff23d8bf0c7
--- /dev/null
+++ b/app/serializers/issuable_sidebar_entity.rb
@@ -0,0 +1,16 @@
+class IssuableSidebarEntity < Grape::Entity
+  include RequestAwareEntity
+
+  expose :participants, using: ::API::Entities::UserBasic do |issuable|
+    issuable.participants(request.current_user)
+  end
+
+  expose :subscribed do |issuable|
+    issuable.subscribed?(request.current_user, issuable.project)
+  end
+
+  expose :time_estimate
+  expose :total_time_spent
+  expose :human_time_estimate
+  expose :human_total_time_spent
+end
diff --git a/app/serializers/issue_serializer.rb b/app/serializers/issue_serializer.rb
index 4fff54a9126..2555595379b 100644
--- a/app/serializers/issue_serializer.rb
+++ b/app/serializers/issue_serializer.rb
@@ -1,3 +1,16 @@
 class IssueSerializer < BaseSerializer
-  entity IssueEntity
+  # This overrided method takes care of which entity should be used
+  # to serialize the `issue` based on `basic` key in `opts` param.
+  # Hence, `entity` doesn't need to be declared on the class scope.
+  def represent(merge_request, opts = {})
+    entity =
+      case opts[:serializer]
+      when 'sidebar'
+        IssueSidebarEntity
+      else
+        IssueEntity
+      end
+
+    super(merge_request, opts, entity)
+  end
 end
diff --git a/app/serializers/issue_sidebar_entity.rb b/app/serializers/issue_sidebar_entity.rb
new file mode 100644
index 00000000000..6c823dbfe95
--- /dev/null
+++ b/app/serializers/issue_sidebar_entity.rb
@@ -0,0 +1,3 @@
+class IssueSidebarEntity < IssuableSidebarEntity
+  expose :assignees, using: API::Entities::UserBasic
+end
diff --git a/app/serializers/merge_request_basic_entity.rb b/app/serializers/merge_request_basic_entity.rb
index 8461f158bb5..d54a6516aed 100644
--- a/app/serializers/merge_request_basic_entity.rb
+++ b/app/serializers/merge_request_basic_entity.rb
@@ -1,11 +1,7 @@
-class MergeRequestBasicEntity < Grape::Entity
+class MergeRequestBasicEntity < IssuableSidebarEntity
   expose :assignee_id
   expose :merge_status
   expose :merge_error
   expose :state
   expose :source_branch_exists?, as: :source_branch_exists
-  expose :time_estimate
-  expose :total_time_spent
-  expose :human_time_estimate
-  expose :human_total_time_spent
 end
diff --git a/app/serializers/merge_request_serializer.rb b/app/serializers/merge_request_serializer.rb
index f67034ce47a..e9d98d8baca 100644
--- a/app/serializers/merge_request_serializer.rb
+++ b/app/serializers/merge_request_serializer.rb
@@ -3,7 +3,14 @@ class MergeRequestSerializer < BaseSerializer
   # to serialize the `merge_request` based on `basic` key in `opts` param.
   # Hence, `entity` doesn't need to be declared on the class scope.
   def represent(merge_request, opts = {})
-    entity = opts[:basic] ? MergeRequestBasicEntity : MergeRequestEntity
+    entity =
+      case opts[:serializer]
+      when 'basic', 'sidebar'
+        MergeRequestBasicEntity
+      else
+        MergeRequestEntity
+      end
+
     super(merge_request, opts, entity)
   end
 end
diff --git a/app/services/issues/reopen_service.rb b/app/services/issues/reopen_service.rb
index 35de4337b15..62b4b4b6a1e 100644
--- a/app/services/issues/reopen_service.rb
+++ b/app/services/issues/reopen_service.rb
@@ -9,6 +9,7 @@ module Issues
         notification_service.reopen_issue(issue, current_user)
         execute_hooks(issue, 'reopen')
         invalidate_cache_counts(issue, users: issue.assignees)
+        issue.update_project_counter_caches
       end
 
       issue
diff --git a/app/services/merge_requests/merge_service.rb b/app/services/merge_requests/merge_service.rb
index 8c5821aa870..156e7b2f078 100644
--- a/app/services/merge_requests/merge_service.rb
+++ b/app/services/merge_requests/merge_service.rb
@@ -82,16 +82,9 @@ module MergeRequests
         @merge_request.can_remove_source_branch?(branch_deletion_user)
     end
 
-    # Logs merge error message and cleans `MergeRequest#merge_jid`.
-    #
     def handle_merge_error(log_message:, save_message_on_model: false)
       Rails.logger.error("MergeService ERROR: #{merge_request_info} - #{log_message}")
-
-      if save_message_on_model
-        @merge_request.update(merge_error: log_message, merge_jid: nil)
-      else
-        clean_merge_jid
-      end
+      @merge_request.update(merge_error: log_message) if save_message_on_model
     end
 
     def merge_request_info
diff --git a/app/services/merge_requests/reopen_service.rb b/app/services/merge_requests/reopen_service.rb
index b9c65be36ec..c599a90f9fe 100644
--- a/app/services/merge_requests/reopen_service.rb
+++ b/app/services/merge_requests/reopen_service.rb
@@ -11,6 +11,7 @@ module MergeRequests
         merge_request.reload_diff(current_user)
         merge_request.mark_as_unchecked
         invalidate_cache_counts(merge_request, users: merge_request.assignees)
+        merge_request.update_project_counter_caches
       end
 
       merge_request
diff --git a/app/services/milestones/promote_service.rb b/app/services/milestones/promote_service.rb
new file mode 100644
index 00000000000..bd9cfd4e0ea
--- /dev/null
+++ b/app/services/milestones/promote_service.rb
@@ -0,0 +1,80 @@
+module Milestones
+  class PromoteService < Milestones::BaseService
+    PromoteMilestoneError = Class.new(StandardError)
+
+    def execute(milestone)
+      check_project_milestone!(milestone)
+
+      Milestone.transaction do
+        # Destroy all milestones with same title across projects
+        destroy_old_milestones(milestone)
+
+        group_milestone = clone_project_milestone(milestone)
+
+        move_children_to_group_milestone(group_milestone)
+
+        # Just to be safe
+        unless group_milestone.valid?
+          raise_error(group_milestone.errors.full_messages.to_sentence)
+        end
+
+        group_milestone
+      end
+    end
+
+    private
+
+    def milestone_ids_for_merge(group_milestone)
+      # Pluck need to be used here instead of select so the array of ids
+      # is persistent after old milestones gets deleted.
+      @milestone_ids_for_merge ||= begin
+        search_params = { title: group_milestone.title, project_ids: group_project_ids, state: 'all' }
+        milestones = MilestonesFinder.new(search_params).execute
+        milestones.pluck(:id)
+      end
+    end
+
+    def move_children_to_group_milestone(group_milestone)
+      milestone_ids_for_merge(group_milestone).in_groups_of(100) do |milestone_ids|
+        update_children(group_milestone, milestone_ids)
+      end
+    end
+
+    def check_project_milestone!(milestone)
+      raise_error('Only project milestones can be promoted.') unless milestone.project_milestone?
+    end
+
+    def clone_project_milestone(milestone)
+      params = milestone.slice(:title, :description, :start_date, :due_date, :state_event)
+
+      create_service = CreateService.new(group, current_user, params)
+
+      create_service.execute
+    end
+
+    def update_children(group_milestone, milestone_ids)
+      issues = Issue.where(project_id: group_project_ids, milestone_id: milestone_ids)
+      merge_requests = MergeRequest.where(source_project_id: group_project_ids, milestone_id: milestone_ids)
+
+      [issues, merge_requests].each do |issuable_collection|
+        issuable_collection.update_all(milestone_id: group_milestone.id)
+      end
+    end
+
+    def group
+      @group ||= parent.group || raise_error('Project does not belong to a group.')
+    end
+
+    def destroy_old_milestones(group_milestone)
+      Milestone.where(id: milestone_ids_for_merge(group_milestone)).destroy_all
+    end
+
+    def group_project_ids
+      @group_project_ids ||= group.projects.map(&:id)
+    end
+
+    def raise_error(message)
+      raise PromoteMilestoneError, "Promotion failed - #{message}"
+    end
+  end
+end
diff --git a/app/services/projects/group_links/create_service.rb b/app/services/projects/group_links/create_service.rb
new file mode 100644
index 00000000000..35624577024
--- /dev/null
+++ b/app/services/projects/group_links/create_service.rb
@@ -0,0 +1,15 @@
+module Projects
+  module GroupLinks
+    class CreateService < BaseService
+      def execute(group)
+        return false unless group
+
+        project.project_group_links.create(
+          group: group,
+          group_access: params[:link_group_access],
+          expires_at: params[:expires_at]
+        )
+      end
+    end
+  end
+end
diff --git a/app/services/projects/group_links/destroy_service.rb b/app/services/projects/group_links/destroy_service.rb
new file mode 100644
index 00000000000..fbf31214c28
--- /dev/null
+++ b/app/services/projects/group_links/destroy_service.rb
@@ -0,0 +1,10 @@
+module Projects
+  module GroupLinks
+    class DestroyService < BaseService
+      def execute(group_link)
+        return false unless group_link
+        group_link.destroy
+      end
+    end
+  end
+end
diff --git a/app/services/projects/hashed_storage_migration_service.rb b/app/services/projects/hashed_storage_migration_service.rb
index 41259de3a16..f5945f3b87f 100644
--- a/app/services/projects/hashed_storage_migration_service.rb
+++ b/app/services/projects/hashed_storage_migration_service.rb
@@ -10,7 +10,7 @@ module Projects
     end
 
     def execute
-      return if project.hashed_storage?
+      return if project.hashed_storage?(:repository)
 
       @old_disk_path = project.disk_path
       has_wiki = project.wiki.repository_exists?
diff --git a/app/services/system_hooks_service.rb b/app/services/system_hooks_service.rb
index a1c2f8d0180..5d275967821 100644
--- a/app/services/system_hooks_service.rb
+++ b/app/services/system_hooks_service.rb
@@ -83,7 +83,7 @@ class SystemHooksService
       project_id: model.id,
       owner_name: owner.name,
       owner_email: owner.respond_to?(:email) ? owner.email : "",
-      project_visibility: Project.visibility_levels.key(model.visibility_level_value).downcase
+      project_visibility: model.visibility.downcase
     }
   end
 
diff --git a/app/uploaders/file_uploader.rb b/app/uploaders/file_uploader.rb
index 7027ac4b5db..d4ba3a028be 100644
--- a/app/uploaders/file_uploader.rb
+++ b/app/uploaders/file_uploader.rb
@@ -30,7 +30,7 @@ class FileUploader < GitlabUploader
   #
   # Returns a String without a trailing slash
   def self.dynamic_path_segment(model)
-    File.join(CarrierWave.root, base_dir, model.full_path)
+    File.join(CarrierWave.root, base_dir, model.disk_path)
   end
 
   attr_accessor :model
diff --git a/app/views/admin/application_settings/_form.html.haml b/app/views/admin/application_settings/_form.html.haml
index f8f029c7763..98499a896fe 100644
--- a/app/views/admin/application_settings/_form.html.haml
+++ b/app/views/admin/application_settings/_form.html.haml
@@ -533,11 +533,23 @@
   %fieldset
     %legend Git Storage Circuitbreaker settings
     .form-group
-      = f.label :circuitbreaker_failure_count_threshold, _('Maximum git storage failures'), class: 'control-label col-sm-2'
+      = f.label :circuitbreaker_access_retries, _('Number of access attempts'), class: 'control-label col-sm-2'
       .col-sm-10
-        = f.number_field :circuitbreaker_failure_count_threshold, class: 'form-control'
+        = f.number_field :circuitbreaker_access_retries, class: 'form-control'
         .help-block
-          = circuitbreaker_failure_count_help_text
+          = circuitbreaker_access_retries_help_text
+    .form-group
+      = f.label :circuitbreaker_storage_timeout, _('Seconds to wait for a storage access attempt'), class: 'control-label col-sm-2'
+      .col-sm-10
+        = f.number_field :circuitbreaker_storage_timeout, class: 'form-control'
+        .help-block
+          = circuitbreaker_storage_timeout_help_text
+    .form-group
+      = f.label :circuitbreaker_backoff_threshold, _('Number of failures before backing off'), class: 'control-label col-sm-2'
+      .col-sm-10
+        = f.number_field :circuitbreaker_backoff_threshold, class: 'form-control'
+        .help-block
+          = circuitbreaker_backoff_threshold_help_text
     .form-group
       = f.label :circuitbreaker_failure_wait_time, _('Seconds to wait after a storage failure'), class: 'control-label col-sm-2'
       .col-sm-10
@@ -545,17 +557,17 @@
         .help-block
           = circuitbreaker_failure_wait_time_help_text
     .form-group
-      = f.label :circuitbreaker_failure_reset_time, _('Seconds before reseting failure information'), class: 'control-label col-sm-2'
+      = f.label :circuitbreaker_failure_count_threshold, _('Maximum git storage failures'), class: 'control-label col-sm-2'
       .col-sm-10
-        = f.number_field :circuitbreaker_failure_reset_time, class: 'form-control'
+        = f.number_field :circuitbreaker_failure_count_threshold, class: 'form-control'
         .help-block
-          = circuitbreaker_failure_reset_time_help_text
+          = circuitbreaker_failure_count_help_text
     .form-group
-      = f.label :circuitbreaker_storage_timeout, _('Seconds to wait for a storage access attempt'), class: 'control-label col-sm-2'
+      = f.label :circuitbreaker_failure_reset_time, _('Seconds before reseting failure information'), class: 'control-label col-sm-2'
       .col-sm-10
-        = f.number_field :circuitbreaker_storage_timeout, class: 'form-control'
+        = f.number_field :circuitbreaker_failure_reset_time, class: 'form-control'
         .help-block
-          = circuitbreaker_storage_timeout_help_text
+          = circuitbreaker_failure_reset_time_help_text
 
   %fieldset
     %legend Repository Checks
diff --git a/app/views/dashboard/_projects_head.html.haml b/app/views/dashboard/_projects_head.html.haml
index fd2ba9ac1ca..9038c4fbebd 100644
--- a/app/views/dashboard/_projects_head.html.haml
+++ b/app/views/dashboard/_projects_head.html.haml
@@ -6,13 +6,13 @@
   .fade-right= icon('angle-right')
   %ul.nav-links.scrolling-tabs
     = nav_link(page: [dashboard_projects_path, root_path]) do
-      = link_to dashboard_projects_path, title: 'Home', class: 'shortcuts-activity', data: {placement: 'right'} do
+      = link_to dashboard_projects_path, class: 'shortcuts-activity', data: {placement: 'right'} do
         Your projects
     = nav_link(page: starred_dashboard_projects_path) do
-      = link_to starred_dashboard_projects_path, title: 'Starred Projects', data: {placement: 'right'} do
+      = link_to starred_dashboard_projects_path, data: {placement: 'right'} do
         Starred projects
     = nav_link(page: [explore_root_path, trending_explore_projects_path, starred_explore_projects_path, explore_projects_path]) do
-      = link_to explore_root_path, title: 'Explore', data: {placement: 'right'} do
+      = link_to explore_root_path, data: {placement: 'right'} do
         Explore projects
 
   .nav-controls
diff --git a/app/views/groups/milestones/_form.html.haml b/app/views/groups/milestones/_form.html.haml
index cc879e5a308..a1be0d3220a 100644
--- a/app/views/groups/milestones/_form.html.haml
+++ b/app/views/groups/milestones/_form.html.haml
@@ -11,7 +11,7 @@
         = f.label :description, "Description", class: "control-label"
         .col-sm-10
           = render layout: 'projects/md_preview', locals: { url: group_preview_markdown_path } do
-            = render 'projects/zen', f: f, attr: :description, classes: 'note-textarea', placeholder: 'Write milestone description...'
+            = render 'projects/zen', f: f, attr: :description, classes: 'note-textarea', placeholder: 'Write milestone description...', supports_autocomplete: false
             .clearfix
             .error-alert
 
diff --git a/app/views/help/index.html.haml b/app/views/help/index.html.haml
index c25eae63eec..d0c2e0b1d69 100644
--- a/app/views/help/index.html.haml
+++ b/app/views/help/index.html.haml
@@ -11,6 +11,7 @@
       %span= Gitlab::VERSION
       %small= link_to Gitlab::REVISION, Gitlab::COM_URL + namespace_project_commits_path('gitlab-org', 'gitlab-ce', Gitlab::REVISION)
       = version_status_badge
+
   %p.slead
     GitLab is open source software to collaborate on code.
     %br
@@ -23,6 +24,7 @@
     Used by more than 100,000 organizations, GitLab is the most popular solution to manage git repositories on-premises.
     %br
     Read more about GitLab at #{link_to promo_host, promo_url, target: '_blank', rel: 'noopener noreferrer'}.
+    %p= link_to 'Check the current instance configuration ', help_instance_configuration_url
   %hr
 
 .row.prepend-top-default
diff --git a/app/views/help/instance_configuration.html.haml b/app/views/help/instance_configuration.html.haml
new file mode 100644
index 00000000000..f09e3825a4b
--- /dev/null
+++ b/app/views/help/instance_configuration.html.haml
@@ -0,0 +1,17 @@
+- page_title 'Instance Configuration'
+.wiki.documentation
+  %h1 Instance Configuration
+
+  %p
+    In this page you will find information about the settings that are used in your current instance.
+
+  = render 'help/instance_configuration/ssh_info'
+  = render 'help/instance_configuration/gitlab_pages'
+  = render 'help/instance_configuration/gitlab_ci'
+  %p
+    %strong Table of contents
+
+    %ul
+      = content_for :table_content
+
+  = content_for :settings_content
diff --git a/app/views/help/instance_configuration/_gitlab_ci.html.haml b/app/views/help/instance_configuration/_gitlab_ci.html.haml
new file mode 100644
index 00000000000..7fa8bd086d4
--- /dev/null
+++ b/app/views/help/instance_configuration/_gitlab_ci.html.haml
@@ -0,0 +1,24 @@
+- content_for :table_content do
+  %li= link_to 'GitLab CI', '#gitlab-ci'
+
+- content_for :settings_content do
+  %h2#gitlab-ci
+    GitLab CI
+
+  %p
+    Below are the current settings regarding
+    = succeed('.') { link_to('GitLab CI', 'https://about.gitlab.com/gitlab-ci', target: '_blank') }
+
+  .table-responsive
+    %table
+      %thead
+        %tr
+          %th Setting
+          %th= instance_configuration_host(@instance_configuration.settings[:host])
+          %th Default
+      %tbody
+        %tr
+          - artifacts_size = @instance_configuration.settings[:gitlab_ci][:artifacts_max_size]
+          %td Artifacts maximum size
+          %td= instance_configuration_human_size_cell(artifacts_size[:value])
+          %td= instance_configuration_human_size_cell(artifacts_size[:default])
diff --git a/app/views/help/instance_configuration/_gitlab_pages.html.haml b/app/views/help/instance_configuration/_gitlab_pages.html.haml
new file mode 100644
index 00000000000..bdd77730dcc
--- /dev/null
+++ b/app/views/help/instance_configuration/_gitlab_pages.html.haml
@@ -0,0 +1,35 @@
+- gitlab_pages = @instance_configuration.settings[:gitlab_pages]
+- content_for :table_content do
+  %li= link_to 'GitLab Pages', '#gitlab-pages'
+
+- content_for :settings_content do
+  %h2#gitlab-pages
+    GitLab Pages
+
+  %p
+    Below are the settings for
+    = succeed('.') { link_to('Gitlab Pages', gitlab_pages[:url], target: '_blank') }
+  .table-responsive
+    %table
+      %thead
+        %tr
+          %th Setting
+          %th= instance_configuration_host(@instance_configuration.settings[:host])
+      %tbody
+        %tr
+          %td Domain Name
+          %td
+            %code= instance_configuration_cell_html(gitlab_pages[:host])
+        %tr
+          %td IP Address
+          %td
+            %code= instance_configuration_cell_html(gitlab_pages[:ip_address])
+        %tr
+          %td Port
+          %td
+            %code= instance_configuration_cell_html(gitlab_pages[:port])
+  %br
+
+  %p
+    The maximum size of your Pages site is regulated by the artifacts maximum
+    size which is part of #{succeed('.') { link_to('GitLab CI', '#gitlab-ci') }}
diff --git a/app/views/help/instance_configuration/_ssh_info.html.haml b/app/views/help/instance_configuration/_ssh_info.html.haml
new file mode 100644
index 00000000000..987cc61b3f6
--- /dev/null
+++ b/app/views/help/instance_configuration/_ssh_info.html.haml
@@ -0,0 +1,27 @@
+- ssh_info = @instance_configuration.settings[:ssh_algorithms_hashes]
+- if ssh_info.any?
+  - content_for :table_content do
+    %li= link_to 'SSH host keys fingerprints', '#ssh-host-keys-fingerprints'
+
+  - content_for :settings_content do
+    %h2#ssh-host-keys-fingerprints
+      SSH host keys fingerprints
+
+    %p
+      Below are the fingerprints for the current instance SSH host keys.
+
+    .table-responsive
+      %table
+        %thead
+          %tr
+            %th Algorithm
+            %th MD5
+            %th SHA256
+        %tbody
+          - ssh_info.each do |algorithm|
+            %tr
+              %td= algorithm[:name]
+              %td
+                %code= instance_configuration_cell_html(algorithm[:md5])
+              %td
+                %code= instance_configuration_cell_html(algorithm[:sha256])
diff --git a/app/views/layouts/nav/sidebar/_project.html.haml b/app/views/layouts/nav/sidebar/_project.html.haml
index f82207559a3..66146e61263 100644
--- a/app/views/layouts/nav/sidebar/_project.html.haml
+++ b/app/views/layouts/nav/sidebar/_project.html.haml
@@ -274,7 +274,7 @@
               Members
           %ul.sidebar-sub-level-items.is-fly-out-only
             = nav_link(path: %w[members#show], html_options: { class: "fly-out-top-item" } ) do
-              = link_to project_settings_members_path(@project) do
+              = link_to project_project_members_path(@project) do
                 %strong.fly-out-top-item-name
                   #{ _('Members') }
 
diff --git a/app/views/projects/branches/_branch.html.haml b/app/views/projects/branches/_branch.html.haml
index 49101d1efa4..6e02ae6c9cc 100644
--- a/app/views/projects/branches/_branch.html.haml
+++ b/app/views/projects/branches/_branch.html.haml
@@ -1,3 +1,4 @@
+- merged = local_assigns.fetch(:merged, false)
 - commit = @repository.commit(branch.dereferenced_target)
 - bar_graph_width_factor = @max_commits > 0 ? 100.0/@max_commits : 0
 - diverging_commit_counts = @repository.diverging_commit_counts(branch)
@@ -12,7 +13,7 @@
     &nbsp;
     - if branch.name == @repository.root_ref
       %span.label.label-primary default
-    - elsif @repository.merged_to_root_ref? branch.name
+    - elsif merged
       %span.label.label-info.has-tooltip{ title: s_('Branches|Merged into %{default_branch}') % { default_branch: @repository.root_ref } }
         = s_('Branches|merged')
 
@@ -47,7 +48,7 @@
                 target: "#modal-delete-branch",
                 delete_path: project_branch_path(@project, branch.name),
                 branch_name: branch.name,
-                is_merged: ("true" if @repository.merged_to_root_ref?(branch.name)) } }
+                is_merged: ("true" if merged) } }
               = icon("trash-o")
           - else
             %button{ class: "btn btn-remove remove-row js-ajax-loading-spinner has-tooltip disabled",
diff --git a/app/views/projects/branches/index.html.haml b/app/views/projects/branches/index.html.haml
index 7d9645d79e6..aade310236e 100644
--- a/app/views/projects/branches/index.html.haml
+++ b/app/views/projects/branches/index.html.haml
@@ -38,7 +38,7 @@
   - if @branches.any?
     %ul.content-list.all-branches
       - @branches.each do |branch|
-        = render "projects/branches/branch", branch: branch
+        = render "projects/branches/branch", branch: branch, merged: @repository.merged_to_root_ref?(branch, @merged_branch_names)
     = paginate @branches, theme: 'gitlab'
   - else
     .nothing-here-block
diff --git a/app/views/projects/clusters/show.html.haml b/app/views/projects/clusters/show.html.haml
index ff76abc3553..b127e06030e 100644
--- a/app/views/projects/clusters/show.html.haml
+++ b/app/views/projects/clusters/show.html.haml
@@ -47,7 +47,7 @@
 
         - if can?(current_user, :update_cluster, @cluster)
           .form-group
-            = field.submit s_('ClusterIntegration|Save'), class: 'btn btn-success'
+            = field.submit _('Save'), class: 'btn btn-success'
 
   %section.settings#js-cluster-details
     .settings-header
@@ -68,7 +68,7 @@
 
   %section.settings#js-cluster-advanced-settings
     .settings-header
-      %h4= s_('ClusterIntegration|Advanced settings')
+      %h4= _('Advanced settings')
       %button.btn.js-settings-toggle
         = expanded ? 'Collapse' : 'Expand'
       %p= s_('ClusterIntegration|Manage Cluster integration on your GitLab project')
diff --git a/app/views/projects/commit/_commit_box.html.haml b/app/views/projects/commit/_commit_box.html.haml
index 09bcd187e59..ff17372fdd9 100644
--- a/app/views/projects/commit/_commit_box.html.haml
+++ b/app/views/projects/commit/_commit_box.html.haml
@@ -77,5 +77,6 @@
         #{ n_(s_('Pipeline|with stage'), s_('Pipeline|with stages'), last_pipeline.stages_count) }
         .mr-widget-pipeline-graph
           = render 'shared/mini_pipeline_graph', pipeline: last_pipeline, klass: 'js-commit-pipeline-graph'
-      in
-      = time_interval_in_words last_pipeline.duration
+      - if last_pipeline.duration
+        in
+        = time_interval_in_words last_pipeline.duration
diff --git a/app/views/projects/empty.html.haml b/app/views/projects/empty.html.haml
index c9956183e12..af564b93dc3 100644
--- a/app/views/projects/empty.html.haml
+++ b/app/views/projects/empty.html.haml
@@ -72,6 +72,7 @@
           %pre.light-well
             :preserve
               cd existing_repo
+              git remote rename origin old-origin
               git remote add origin #{ content_tag(:span, default_url_to_repo, class: 'clone')}
               git push -u origin --all
               git push -u origin --tags
diff --git a/app/views/projects/issues/edit.html.haml b/app/views/projects/issues/edit.html.haml
new file mode 100644
index 00000000000..1b7d878c38c
--- /dev/null
+++ b/app/views/projects/issues/edit.html.haml
@@ -0,0 +1,7 @@
+- page_title "Edit", "#{@issue.title} (#{@issue.to_reference})", "Issues"
+
+%h3.page-title
+  Edit Issue ##{@issue.iid}
+%hr
+
+= render "form"
diff --git a/app/views/projects/milestones/show.html.haml b/app/views/projects/milestones/show.html.haml
index a5153df1159..9fc297ab7f6 100644
--- a/app/views/projects/milestones/show.html.haml
+++ b/app/views/projects/milestones/show.html.haml
@@ -23,14 +23,18 @@
         = milestone_date_range(@milestone)
     .milestone-buttons
       - if can?(current_user, :admin_milestone, @project)
+        = link_to edit_project_milestone_path(@project, @milestone), class: "btn btn-grouped btn-nr" do
+          Edit
+
+        - if @project.group
+          = link_to promote_project_milestone_path(@milestone.project, @milestone), title: "Promote to Group Milestone", class: 'btn btn-grouped', data: { confirm: "Promoting this milestone will make it available for all projects inside the group. Existing project milestones with the same name will be merged. Are you sure?", toggle: "tooltip" }, method: :post do
+            Promote
+
         - if @milestone.active?
           = link_to 'Close milestone', project_milestone_path(@project, @milestone, milestone: {state_event: :close }), method: :put, class: "btn btn-close btn-nr btn-grouped"
         - else
           = link_to 'Reopen milestone', project_milestone_path(@project, @milestone, milestone: {state_event: :activate }), method: :put, class: "btn btn-reopen btn-nr btn-grouped"
 
-        = link_to edit_project_milestone_path(@project, @milestone), class: "btn btn-grouped btn-nr" do
-          Edit
-
         = link_to project_milestone_path(@project, @milestone), data: { confirm: 'Are you sure?' }, method: :delete, class: "btn btn-grouped btn-danger" do
           Delete
 
@@ -40,6 +44,7 @@
   .detail-page-description.milestone-detail
     %h2.title
       = markdown_field(@milestone, :title)
+
     %div
       - if @milestone.description.present?
         .description
diff --git a/app/views/projects/tree/_tree_header.html.haml b/app/views/projects/tree/_tree_header.html.haml
index 47f3f2b459a..c02f7ee37ed 100644
--- a/app/views/projects/tree/_tree_header.html.haml
+++ b/app/views/projects/tree/_tree_header.html.haml
@@ -2,12 +2,14 @@
   .tree-ref-holder
     = render 'shared/ref_switcher', destination: 'tree', path: @path, show_create: true
 
-  - unless show_new_repo?
+  - if show_new_repo? && can_push_branch?(@project, @ref)
+    .js-new-dropdown
+  - else
     = render 'projects/tree/old_tree_header'
 
 .tree-controls
   - if show_new_repo?
-    = render 'shared/repo/editable_mode'
+    .editable-mode
   - else
     = link_to s_('Commits|History'), project_commits_path(@project, @id), class: 'btn'
 
diff --git a/app/views/shared/issuable/_participants.html.haml b/app/views/shared/issuable/_participants.html.haml
deleted file mode 100644
index 3f553c9fede..00000000000
--- a/app/views/shared/issuable/_participants.html.haml
+++ /dev/null
@@ -1,18 +0,0 @@
-- participants_row = 7
-- participants_size = participants.size
-- participants_extra = participants_size - participants_row
-.block.participants
-  .sidebar-collapsed-icon
-    = icon('users')
-    %span
-      = participants.count
-  .title.hide-collapsed
-    = pluralize participants.count, "participant"
-  .hide-collapsed.participants-list
-    - participants.each do |participant|
-      .participants-author.js-participants-author
-        = link_to_member(@project, participant, name: false, size: 24, lazy_load: true)
-  - if participants_extra > 0
-    .hide-collapsed.participants-more
-      %button.btn-transparent.btn-blank.js-participants-more{ type: 'button', data: { original_text: "+ #{participants_size - 7} more", less_text: "- show less" } }
-        + #{participants_extra} more
diff --git a/app/views/shared/issuable/_search_bar.html.haml b/app/views/shared/issuable/_search_bar.html.haml
index 161b1c9fd72..fabb17c7340 100644
--- a/app/views/shared/issuable/_search_bar.html.haml
+++ b/app/views/shared/issuable/_search_bar.html.haml
@@ -25,7 +25,6 @@
               %ul.tokens-container.list-unstyled
                 %li.input-token
                   %input.form-control.filtered-search{ search_filter_input_options(type) }
-              = icon('filter')
             #js-dropdown-hint.filtered-search-input-dropdown-menu.dropdown-menu.hint-dropdown
               %ul{ data: { dropdown: true } }
                 %li.filter-dropdown-item{ data: { action: 'submit' } }
diff --git a/app/views/shared/issuable/_sidebar.html.haml b/app/views/shared/issuable/_sidebar.html.haml
index 7b7411b1e23..e0009a35b9f 100644
--- a/app/views/shared/issuable/_sidebar.html.haml
+++ b/app/views/shared/issuable/_sidebar.html.haml
@@ -123,17 +123,10 @@
         %script#js-lock-issue-data{ type: "application/json" }= { is_locked: issuable.discussion_locked?, is_editable: can_edit_issuable }.to_json.html_safe
         #js-lock-entry-point
 
-      = render "shared/issuable/participants", participants: issuable.participants(current_user)
+      .js-sidebar-participants-entry-point
+
       - if current_user
-        - subscribed = issuable.subscribed?(current_user, @project)
-        .block.light.subscription{ data: { url: toggle_subscription_path(issuable) } }
-          .sidebar-collapsed-icon
-            = icon('rss', 'aria-hidden': 'true')
-          %span.issuable-header-text.hide-collapsed.pull-left
-            Notifications
-          - subscribtion_status = subscribed ? 'subscribed' : 'unsubscribed'
-          %button.btn.btn-default.pull-right.js-subscribe-button.issuable-subscribe-button.hide-collapsed{ type: "button" }
-            %span= subscribed ? 'Unsubscribe' : 'Subscribe'
+        .js-sidebar-subscriptions-entry-point
 
       - project_ref = cross_project_reference(@project, issuable)
       .block.project-reference
diff --git a/app/views/shared/milestones/_milestone.html.haml b/app/views/shared/milestones/_milestone.html.haml
index 305e2542281..7ba8f9d4313 100644
--- a/app/views/shared/milestones/_milestone.html.haml
+++ b/app/views/shared/milestones/_milestone.html.haml
@@ -49,6 +49,13 @@
           = link_to edit_project_milestone_path(milestone.project, milestone), class: "btn btn-xs btn-grouped" do
             Edit
           \
+
+          - if @project.group
+            = link_to promote_project_milestone_path(milestone.project, milestone), title: "Promote to Group Milestone", class: 'btn btn-xs btn-grouped', data: { confirm: "Promoting this milestone will make it available for all projects inside the group. Existing project milestones with the same name will be merged. Are you sure?", toggle: "tooltip" }, method: :post do
+              Promote
+
           = link_to 'Close Milestone', project_milestone_path(@project, milestone, milestone: {state_event: :close }), method: :put, remote: true, class: "btn btn-xs btn-close btn-grouped"
+
           = link_to project_milestone_path(milestone.project, milestone), data: { confirm: 'Are you sure?' }, method: :delete, class: "btn btn-xs btn-remove btn-grouped" do
             Delete
+
diff --git a/app/views/shared/repo/_editable_mode.html.haml b/app/views/shared/repo/_editable_mode.html.haml
deleted file mode 100644
index 73fdb8b523f..00000000000
--- a/app/views/shared/repo/_editable_mode.html.haml
+++ /dev/null
@@ -1,2 +0,0 @@
-.editable-mode
-  %repo-edit-button
diff --git a/app/views/shared/repo/_repo.html.haml b/app/views/shared/repo/_repo.html.haml
index 7185f5bcc5b..5867ea58378 100644
--- a/app/views/shared/repo/_repo.html.haml
+++ b/app/views/shared/repo/_repo.html.haml
@@ -1,10 +1,12 @@
 #repo{ data: { root: @path.empty?.to_s,
+               root_url: project_tree_path(project),
                url: content_url,
+               current_branch: @ref,
+               ref: @commit.id,
                project_name: project.name,
-               refs_url: refs_project_path(project, format: :json),
                project_url: project_path(project),
                project_id: project.id,
-               blob_url: namespace_project_blob_path(project.namespace, project, '{{branch}}'),
-               new_mr_template_url: namespace_project_new_merge_request_path(project.namespace, project, merge_request: { source_branch: '{{source_branch}}' }),
+               new_merge_request_url: namespace_project_new_merge_request_path(project.namespace, project, merge_request: { source_branch: '' }),
                can_commit: (!!can_push_branch?(project, @ref)).to_s,
-               on_top_of_branch: (!!on_top_of_branch?(project, @ref)).to_s } }
+               on_top_of_branch: (!!on_top_of_branch?(project, @ref)).to_s,
+               current_path: @path } }
diff --git a/app/workers/stuck_merge_jobs_worker.rb b/app/workers/stuck_merge_jobs_worker.rb
index 7843179d77c..a396c0f27b2 100644
--- a/app/workers/stuck_merge_jobs_worker.rb
+++ b/app/workers/stuck_merge_jobs_worker.rb
@@ -23,7 +23,7 @@ class StuckMergeJobsWorker
     merge_requests = MergeRequest.where(id: completed_ids)
 
     merge_requests.where.not(merge_commit_sha: nil).update_all(state: :merged)
-    merge_requests.where(merge_commit_sha: nil).update_all(state: :opened)
+    merge_requests.where(merge_commit_sha: nil).update_all(state: :opened, merge_jid: nil)
 
     Rails.logger.info("Updated state of locked merge jobs. JIDs: #{completed_jids.join(', ')}")
   end
diff --git a/app/workers/update_merge_requests_worker.rb b/app/workers/update_merge_requests_worker.rb
index 89ae17cef37..150788ca611 100644
--- a/app/workers/update_merge_requests_worker.rb
+++ b/app/workers/update_merge_requests_worker.rb
@@ -2,6 +2,10 @@ class UpdateMergeRequestsWorker
   include Sidekiq::Worker
   include DedicatedSidekiqQueue
 
+  def metrics_tags
+    @metrics_tags || {}
+  end
+
   def perform(project_id, user_id, oldrev, newrev, ref)
     project = Project.find_by(id: project_id)
     return unless project
@@ -9,6 +13,11 @@ class UpdateMergeRequestsWorker
     user = User.find_by(id: user_id)
     return unless user
 
+    @metrics_tags = {
+      project_id: project_id,
+      user_id: user_id
+    }
+
     MergeRequests::RefreshService.new(project, user).execute(oldrev, newrev, ref)
   end
 end
diff --git a/changelogs/unreleased/14970-suggest-rename-remote.yml b/changelogs/unreleased/14970-suggest-rename-remote.yml
new file mode 100644
index 00000000000..68a77eb446d
--- /dev/null
+++ b/changelogs/unreleased/14970-suggest-rename-remote.yml
@@ -0,0 +1,5 @@
+---
+title: Suggest to rename the remote for existing repository instructions
+merge_request: 14970
+author: helmo42
+type: added
diff --git a/changelogs/unreleased/23000-pages-api.yml b/changelogs/unreleased/23000-pages-api.yml
new file mode 100644
index 00000000000..9f6fa13dd07
--- /dev/null
+++ b/changelogs/unreleased/23000-pages-api.yml
@@ -0,0 +1,5 @@
+---
+title: Add API endpoints for Pages Domains
+merge_request: 13917
+author: Travis Miller
+type: added
diff --git a/changelogs/unreleased/23206-load-participants-async.yml b/changelogs/unreleased/23206-load-participants-async.yml
new file mode 100644
index 00000000000..12ab43fb88f
--- /dev/null
+++ b/changelogs/unreleased/23206-load-participants-async.yml
@@ -0,0 +1,5 @@
+---
+title: Update participants and subscriptions button in issuable sidebar to be async
+merge_request: 14836
+author:
+type: changed
diff --git a/changelogs/unreleased/31454-missing-project-id-pipeline-hook-data.yml b/changelogs/unreleased/31454-missing-project-id-pipeline-hook-data.yml
new file mode 100644
index 00000000000..daf7ac715bd
--- /dev/null
+++ b/changelogs/unreleased/31454-missing-project-id-pipeline-hook-data.yml
@@ -0,0 +1,5 @@
+---
+title: Adds project_id to pipeline hook data
+merge_request: 15044
+author: Jacopo Beschi @jacopo-beschi
+type: added
diff --git a/changelogs/unreleased/32318-filter-icon.yml b/changelogs/unreleased/32318-filter-icon.yml
new file mode 100644
index 00000000000..71e7c2c4dac
--- /dev/null
+++ b/changelogs/unreleased/32318-filter-icon.yml
@@ -0,0 +1,5 @@
+---
+title: Remove filter icon from search bar
+merge_request:
+author:
+type: other
diff --git a/changelogs/unreleased/35199-case-insensitive-branches-search.yml b/changelogs/unreleased/35199-case-insensitive-branches-search.yml
new file mode 100644
index 00000000000..da2729e9e55
--- /dev/null
+++ b/changelogs/unreleased/35199-case-insensitive-branches-search.yml
@@ -0,0 +1,5 @@
+---
+title: Case insensitive search for branches
+merge_request: 14995
+author: George Andrinopoulos
+type: fixed
diff --git a/changelogs/unreleased/35914-merge-request-update-worker-is-slow.yml b/changelogs/unreleased/35914-merge-request-update-worker-is-slow.yml
new file mode 100644
index 00000000000..34bb76195af
--- /dev/null
+++ b/changelogs/unreleased/35914-merge-request-update-worker-is-slow.yml
@@ -0,0 +1,5 @@
+---
+title: Add metric tagging for sidekiq workers
+merge_request: 15111
+author:
+type: added
diff --git a/changelogs/unreleased/3674-hashed-storage-attachments.yml b/changelogs/unreleased/3674-hashed-storage-attachments.yml
new file mode 100644
index 00000000000..41bdb5fa568
--- /dev/null
+++ b/changelogs/unreleased/3674-hashed-storage-attachments.yml
@@ -0,0 +1,5 @@
+---
+title: Hashed Storage support for Attachments
+merge_request: 15068
+author:
+type: added
diff --git a/changelogs/unreleased/38178-fl-mr-notes-components.yml b/changelogs/unreleased/38178-fl-mr-notes-components.yml
new file mode 100644
index 00000000000..244ccfb3071
--- /dev/null
+++ b/changelogs/unreleased/38178-fl-mr-notes-components.yml
@@ -0,0 +1,6 @@
+---
+title: Moves placeholders components into shared folder with documentation. Makes
+  them easier to reuse in MR and Snippets comments
+merge_request:
+author:
+type: other
diff --git a/changelogs/unreleased/39054-activerecord-statementinvalid-pg-querycanceled-error-canceling-statement-due-to-statement-timeout.yml b/changelogs/unreleased/39054-activerecord-statementinvalid-pg-querycanceled-error-canceling-statement-due-to-statement-timeout.yml
new file mode 100644
index 00000000000..47bf30ecb5a
--- /dev/null
+++ b/changelogs/unreleased/39054-activerecord-statementinvalid-pg-querycanceled-error-canceling-statement-due-to-statement-timeout.yml
@@ -0,0 +1,5 @@
+---
+title: Stop merge requests with thousands of commits from timing out
+merge_request: 15063
+author:
+type: performance
diff --git a/changelogs/unreleased/39188-change-default-disabled-merge-message.yml b/changelogs/unreleased/39188-change-default-disabled-merge-message.yml
new file mode 100644
index 00000000000..7de65f5c3f6
--- /dev/null
+++ b/changelogs/unreleased/39188-change-default-disabled-merge-message.yml
@@ -0,0 +1,5 @@
+---
+title: Update default disabled merge request widget message to reflect a general failure
+merge_request: 14960
+author:
+type: changed
diff --git a/changelogs/unreleased/39366-email-confirmation-fails.yml b/changelogs/unreleased/39366-email-confirmation-fails.yml
new file mode 100644
index 00000000000..a5568670c70
--- /dev/null
+++ b/changelogs/unreleased/39366-email-confirmation-fails.yml
@@ -0,0 +1,5 @@
+---
+title: 'Fix bug preventing secondary emails from being confirmed'
+merge_request: 15010
+author:
+type: fixed
diff --git a/changelogs/unreleased/39419-remove-overzealous-tooltips.yml b/changelogs/unreleased/39419-remove-overzealous-tooltips.yml
new file mode 100644
index 00000000000..d6cf60bebfa
--- /dev/null
+++ b/changelogs/unreleased/39419-remove-overzealous-tooltips.yml
@@ -0,0 +1,5 @@
+---
+title: Remove overzealous tooltips in projects page tabs
+merge_request: 15017
+author:
+type: removed
diff --git a/changelogs/unreleased/39441-bring-edit-form-back.yml b/changelogs/unreleased/39441-bring-edit-form-back.yml
new file mode 100644
index 00000000000..025417e4da9
--- /dev/null
+++ b/changelogs/unreleased/39441-bring-edit-form-back.yml
@@ -0,0 +1,5 @@
+---
+title: Fix editing issue description in mobile view
+merge_request:
+author:
+type: fixed
diff --git a/changelogs/unreleased/39495-fix-bitbucket-login.yml b/changelogs/unreleased/39495-fix-bitbucket-login.yml
new file mode 100644
index 00000000000..b48d557108b
--- /dev/null
+++ b/changelogs/unreleased/39495-fix-bitbucket-login.yml
@@ -0,0 +1,5 @@
+---
+title: Fix bitbucket login
+merge_request: 15051
+author:
+type: fixed
diff --git a/changelogs/unreleased/39509-fix-wiki-create-sidebar-overlap.yml b/changelogs/unreleased/39509-fix-wiki-create-sidebar-overlap.yml
new file mode 100644
index 00000000000..aebf6363d97
--- /dev/null
+++ b/changelogs/unreleased/39509-fix-wiki-create-sidebar-overlap.yml
@@ -0,0 +1,5 @@
+---
+title: Fix overlap of right-sidebar and main content when creating a Wiki page
+merge_request:
+author:
+type: fixed
diff --git a/changelogs/unreleased/39570-performance-bar-appears-enabled-even-though-it-won-t-show-up.yml b/changelogs/unreleased/39570-performance-bar-appears-enabled-even-though-it-won-t-show-up.yml
new file mode 100644
index 00000000000..66939d89d69
--- /dev/null
+++ b/changelogs/unreleased/39570-performance-bar-appears-enabled-even-though-it-won-t-show-up.yml
@@ -0,0 +1,5 @@
+---
+title: Allow to disable the Performance Bar
+merge_request: 15084
+author:
+type: fixed
diff --git a/changelogs/unreleased/39580-bump-carrierwave-to-1-2-1.yml b/changelogs/unreleased/39580-bump-carrierwave-to-1-2-1.yml
new file mode 100644
index 00000000000..bda85ac24e0
--- /dev/null
+++ b/changelogs/unreleased/39580-bump-carrierwave-to-1-2-1.yml
@@ -0,0 +1,5 @@
+---
+title: Bump carrierwave to 1.2.1
+merge_request: 15072
+author: Takuya Noguchi
+type: other
diff --git a/changelogs/unreleased/39582-nestingdepth-6.yml b/changelogs/unreleased/39582-nestingdepth-6.yml
new file mode 100644
index 00000000000..efe15f0a5f3
--- /dev/null
+++ b/changelogs/unreleased/39582-nestingdepth-6.yml
@@ -0,0 +1,5 @@
+---
+title: Enable NestingDepth (level 6) on scss-lint
+merge_request: 15073
+author: Takuya Noguchi
+type: other
diff --git a/changelogs/unreleased/39583-reopen-issue-count-cache.yml b/changelogs/unreleased/39583-reopen-issue-count-cache.yml
new file mode 100644
index 00000000000..ee35bcbcdae
--- /dev/null
+++ b/changelogs/unreleased/39583-reopen-issue-count-cache.yml
@@ -0,0 +1,5 @@
+---
+title: Refresh open Issue and Merge Request project counter caches when re-opening.
+merge_request: 15085
+author: Rob Ede @robjtede
+type: fixed
diff --git a/changelogs/unreleased/39593-emails-on-push-are-sent-to-only-the-first-recipient-when-using-aws-ses.yml b/changelogs/unreleased/39593-emails-on-push-are-sent-to-only-the-first-recipient-when-using-aws-ses.yml
new file mode 100644
index 00000000000..9a7109d054e
--- /dev/null
+++ b/changelogs/unreleased/39593-emails-on-push-are-sent-to-only-the-first-recipient-when-using-aws-ses.yml
@@ -0,0 +1,5 @@
+---
+title: Only set Auto-Submitted header once for emails on push
+merge_request:
+author:
+type: fixed
diff --git a/changelogs/unreleased/39619-cancel-merge-when-pipeline-succeeds-from-the-api-fails.yml b/changelogs/unreleased/39619-cancel-merge-when-pipeline-succeeds-from-the-api-fails.yml
new file mode 100644
index 00000000000..95251b46ecc
--- /dev/null
+++ b/changelogs/unreleased/39619-cancel-merge-when-pipeline-succeeds-from-the-api-fails.yml
@@ -0,0 +1,5 @@
+---
+title: Fix namespacing for MergeWhenPipelineSucceedsService in MR API
+merge_request:
+author:
+type: fixed
diff --git a/changelogs/unreleased/39639-clusters-poll.yml b/changelogs/unreleased/39639-clusters-poll.yml
new file mode 100644
index 00000000000..f0a82f58b19
--- /dev/null
+++ b/changelogs/unreleased/39639-clusters-poll.yml
@@ -0,0 +1,5 @@
+---
+title: Adds callback functions for initial request in clusters page
+merge_request:
+author:
+type: fixed
diff --git a/changelogs/unreleased/add-packagist-project-service.yml b/changelogs/unreleased/add-packagist-project-service.yml
new file mode 100644
index 00000000000..a13d00e91f7
--- /dev/null
+++ b/changelogs/unreleased/add-packagist-project-service.yml
@@ -0,0 +1,5 @@
+---
+title: Add Packagist project service
+merge_request: 14493
+author: Matt Coleman
+type: added
diff --git a/changelogs/unreleased/api-configure-jira.yml b/changelogs/unreleased/api-configure-jira.yml
new file mode 100644
index 00000000000..3ac52d573b0
--- /dev/null
+++ b/changelogs/unreleased/api-configure-jira.yml
@@ -0,0 +1,5 @@
+---
+title: Validate username/pw for Jiraservice, require them in the API
+merge_request: 15025
+author: Robert Schilling
+type: fixed
diff --git a/changelogs/unreleased/api-doc-group-statistics.yml b/changelogs/unreleased/api-doc-group-statistics.yml
new file mode 100644
index 00000000000..385ff978024
--- /dev/null
+++ b/changelogs/unreleased/api-doc-group-statistics.yml
@@ -0,0 +1,5 @@
+---
+title: Update the groups API documentation
+merge_request: 15024
+author: Robert Schilling
+type: fixed
diff --git a/changelogs/unreleased/backport-workhorse-show-all-refs.yml b/changelogs/unreleased/backport-workhorse-show-all-refs.yml
new file mode 100644
index 00000000000..36dd2115152
--- /dev/null
+++ b/changelogs/unreleased/backport-workhorse-show-all-refs.yml
@@ -0,0 +1,5 @@
+---
+title: Support show-all-refs for git over HTTP
+merge_request: 14834
+author:
+type: added
diff --git a/changelogs/unreleased/bvl-circuitbreaker-backoff.yml b/changelogs/unreleased/bvl-circuitbreaker-backoff.yml
new file mode 100644
index 00000000000..5cb90e7c085
--- /dev/null
+++ b/changelogs/unreleased/bvl-circuitbreaker-backoff.yml
@@ -0,0 +1,6 @@
+---
+title: Make the circuitbreaker more robust by adding higher thresholds, and multiple
+  access attempts.
+merge_request: 14933
+author:
+type: fixed
diff --git a/changelogs/unreleased/bvl-dont-rename-free-names.yml b/changelogs/unreleased/bvl-dont-rename-free-names.yml
new file mode 100644
index 00000000000..60a4ec8afbe
--- /dev/null
+++ b/changelogs/unreleased/bvl-dont-rename-free-names.yml
@@ -0,0 +1,5 @@
+---
+title: Don't rename paths that were freed up when upgrading
+merge_request: 15029
+author:
+type: fixed
diff --git a/changelogs/unreleased/bvl-fix-system-hook-project-visibility.yml b/changelogs/unreleased/bvl-fix-system-hook-project-visibility.yml
new file mode 100644
index 00000000000..a17ed51c9b8
--- /dev/null
+++ b/changelogs/unreleased/bvl-fix-system-hook-project-visibility.yml
@@ -0,0 +1,5 @@
+---
+title: Use the correct visibility attribute for projects in system hooks
+merge_request: 15065
+author:
+type: fixed
diff --git a/changelogs/unreleased/dm-ldap-identity-normalize-dn.yml b/changelogs/unreleased/dm-ldap-identity-normalize-dn.yml
new file mode 100644
index 00000000000..7ab25f79143
--- /dev/null
+++ b/changelogs/unreleased/dm-ldap-identity-normalize-dn.yml
@@ -0,0 +1,5 @@
+---
+title: Normalize LDAP DN when looking up identity
+merge_request:
+author:
+type: fixed
diff --git a/changelogs/unreleased/feature-ssh_host_fingerprint.yml b/changelogs/unreleased/feature-ssh_host_fingerprint.yml
new file mode 100644
index 00000000000..04f9fd1d6ed
--- /dev/null
+++ b/changelogs/unreleased/feature-ssh_host_fingerprint.yml
@@ -0,0 +1,5 @@
+---
+title: Automatic configuration settings page
+merge_request: 13850
+author: Francisco Lopez
+type: added
diff --git a/changelogs/unreleased/fix-500-on-old-merge-requests.yml b/changelogs/unreleased/fix-500-on-old-merge-requests.yml
new file mode 100644
index 00000000000..765d7466819
--- /dev/null
+++ b/changelogs/unreleased/fix-500-on-old-merge-requests.yml
@@ -0,0 +1,5 @@
+---
+title: Fix 500 errors caused by empty diffs in some discussions
+merge_request: 14945
+author: Alexander Popov
+type: fixed
diff --git a/changelogs/unreleased/fix-add-path-attr-to-wiki-file.yml b/changelogs/unreleased/fix-add-path-attr-to-wiki-file.yml
new file mode 100644
index 00000000000..0847b5f6733
--- /dev/null
+++ b/changelogs/unreleased/fix-add-path-attr-to-wiki-file.yml
@@ -0,0 +1,5 @@
+---
+title: Fix broken wiki pages that link to a wiki file
+merge_request: 15019
+author:
+type: fixed
diff --git a/changelogs/unreleased/fix-import-issue-assignees.yml b/changelogs/unreleased/fix-import-issue-assignees.yml
new file mode 100644
index 00000000000..063b6afaf08
--- /dev/null
+++ b/changelogs/unreleased/fix-import-issue-assignees.yml
@@ -0,0 +1,5 @@
+---
+title: Fix missing Import/Export issue assignees
+merge_request:
+author:
+type: fixed
diff --git a/changelogs/unreleased/fix-project-select-js-without-button.yml b/changelogs/unreleased/fix-project-select-js-without-button.yml
new file mode 100644
index 00000000000..389ca2394f0
--- /dev/null
+++ b/changelogs/unreleased/fix-project-select-js-without-button.yml
@@ -0,0 +1,5 @@
+---
+title: Use project select dropdown not only as a combobutton
+merge_request: 15043
+author:
+type: fixed
diff --git a/changelogs/unreleased/go-get-ssh.yml b/changelogs/unreleased/go-get-ssh.yml
new file mode 100644
index 00000000000..e485a94c6db
--- /dev/null
+++ b/changelogs/unreleased/go-get-ssh.yml
@@ -0,0 +1,5 @@
+---
+title: Returns a ssh url for go-get=1
+merge_request: 14990
+author: gvieira37
+type: fixed
diff --git a/changelogs/unreleased/hide-pipeline-zero-duration.yml b/changelogs/unreleased/hide-pipeline-zero-duration.yml
new file mode 100644
index 00000000000..5d7a0983537
--- /dev/null
+++ b/changelogs/unreleased/hide-pipeline-zero-duration.yml
@@ -0,0 +1,5 @@
+---
+title: Hides pipeline duration in commit box when it is zero (nil)
+merge_request: 14979
+author: gvieira37
+type: fixed
diff --git a/changelogs/unreleased/issue_38777.yml b/changelogs/unreleased/issue_38777.yml
new file mode 100644
index 00000000000..5c49b2f7879
--- /dev/null
+++ b/changelogs/unreleased/issue_38777.yml
@@ -0,0 +1,5 @@
+---
+title: Allow promoting project milestones to group milestones
+merge_request:
+author:
+type: added
diff --git a/changelogs/unreleased/make-merge-jid-handling-less-stateful.yml b/changelogs/unreleased/make-merge-jid-handling-less-stateful.yml
new file mode 100644
index 00000000000..fe945e822fd
--- /dev/null
+++ b/changelogs/unreleased/make-merge-jid-handling-less-stateful.yml
@@ -0,0 +1,5 @@
+---
+title: Fix widget of locked merge requests not being presented
+merge_request:
+author:
+type: fixed
diff --git a/changelogs/unreleased/mr-14642.yml b/changelogs/unreleased/mr-14642.yml
new file mode 100644
index 00000000000..048cc79e323
--- /dev/null
+++ b/changelogs/unreleased/mr-14642.yml
@@ -0,0 +1,6 @@
+---
+title: Auto Devops kubernetes default namespace is now correctly built out of gitlab
+  project group-name
+merge_request: 14642
+author: Mircea Danila Dumitrescu
+type: fixed
diff --git a/changelogs/unreleased/ph-multi-file-upload-file.yml b/changelogs/unreleased/ph-multi-file-upload-file.yml
new file mode 100644
index 00000000000..a2bd3cfe459
--- /dev/null
+++ b/changelogs/unreleased/ph-multi-file-upload-file.yml
@@ -0,0 +1,5 @@
+---
+title: Allow files to uploaded in the multi-file editor
+merge_request:
+author:
+type: added
diff --git a/changelogs/unreleased/refactor-group_links_controller.yml b/changelogs/unreleased/refactor-group_links_controller.yml
new file mode 100644
index 00000000000..af3d22c34cb
--- /dev/null
+++ b/changelogs/unreleased/refactor-group_links_controller.yml
@@ -0,0 +1,5 @@
+---
+title: Refactor GroupLinksController
+merge_request:
+author: 15121
+type: other
diff --git a/changelogs/unreleased/sh-fix-broken-redirection-relative-url-root.yml b/changelogs/unreleased/sh-fix-broken-redirection-relative-url-root.yml
new file mode 100644
index 00000000000..96e5195d247
--- /dev/null
+++ b/changelogs/unreleased/sh-fix-broken-redirection-relative-url-root.yml
@@ -0,0 +1,5 @@
+---
+title: Fix broken Members link when relative URL root paths are used
+merge_request:
+author:
+type: fixed
diff --git a/changelogs/unreleased/sh-fix-environment-write-ref.yml b/changelogs/unreleased/sh-fix-environment-write-ref.yml
new file mode 100644
index 00000000000..8f291843ebe
--- /dev/null
+++ b/changelogs/unreleased/sh-fix-environment-write-ref.yml
@@ -0,0 +1,5 @@
+---
+title: Fix the writing of invalid environment refs
+merge_request:
+author:
+type: fixed
diff --git a/changelogs/unreleased/sh-memoize-logger.yml b/changelogs/unreleased/sh-memoize-logger.yml
new file mode 100644
index 00000000000..1b6567ce72f
--- /dev/null
+++ b/changelogs/unreleased/sh-memoize-logger.yml
@@ -0,0 +1,5 @@
+---
+title: Memoize GitLab logger to reduce open file descriptors
+merge_request:
+author:
+type: fixed
diff --git a/changelogs/unreleased/update-fe-i18n-guide.yml b/changelogs/unreleased/update-fe-i18n-guide.yml
new file mode 100644
index 00000000000..10bcf7836c6
--- /dev/null
+++ b/changelogs/unreleased/update-fe-i18n-guide.yml
@@ -0,0 +1,5 @@
+---
+title: Update i18n section in FE docs for marking and interpolation
+merge_request:
+author:
+type: changed
diff --git a/changelogs/unreleased/use-git-branch-merged.yml b/changelogs/unreleased/use-git-branch-merged.yml
new file mode 100644
index 00000000000..24ec226250c
--- /dev/null
+++ b/changelogs/unreleased/use-git-branch-merged.yml
@@ -0,0 +1,5 @@
+---
+title: Improve branch listing page performance
+merge_request: 14729
+author:
+type: performance
diff --git a/changelogs/unreleased/zj-commit-cache.yml b/changelogs/unreleased/zj-commit-cache.yml
new file mode 100644
index 00000000000..e3afe0ea7ef
--- /dev/null
+++ b/changelogs/unreleased/zj-commit-cache.yml
@@ -0,0 +1,5 @@
+---
+title: Cache commits fetched from the repository
+merge_request:
+author:
+type: performance
diff --git a/changelogs/unreleased/zj-ruby-2-3-5.yml b/changelogs/unreleased/zj-ruby-2-3-5.yml
new file mode 100644
index 00000000000..09ec02417aa
--- /dev/null
+++ b/changelogs/unreleased/zj-ruby-2-3-5.yml
@@ -0,0 +1,5 @@
+---
+title: Upgrade Ruby to 2.3.5 to include security patches
+merge_request: 15099
+author:
+type: security
diff --git a/config/routes/ci.rb b/config/routes/ci.rb
index cbd4c2db852..60c1724bc05 100644
--- a/config/routes/ci.rb
+++ b/config/routes/ci.rb
@@ -1,5 +1,5 @@
 namespace :ci do
   resource :lint, only: [:show, :create]
 
-  root to: redirect('/')
+  root to: redirect('')
 end
diff --git a/config/routes/help.rb b/config/routes/help.rb
index d53822da9ec..2ea8bfd7aed 100644
--- a/config/routes/help.rb
+++ b/config/routes/help.rb
@@ -1,4 +1,5 @@
-get 'help'           => 'help#index'
-get 'help/shortcuts' => 'help#shortcuts'
-get 'help/ui'        => 'help#ui'
-get 'help/*path'     => 'help#show', as: :help_page
+get 'help'                        => 'help#index'
+get 'help/shortcuts'              => 'help#shortcuts'
+get 'help/ui'                     => 'help#ui'
+get 'help/instance_configuration' => 'help#instance_configuration'
+get 'help/*path'                  => 'help#show', as: :help_page
diff --git a/config/routes/project.rb b/config/routes/project.rb
index d05fe11f233..746c0c46677 100644
--- a/config/routes/project.rb
+++ b/config/routes/project.rb
@@ -293,6 +293,7 @@ constraints(ProjectUrlConstrainer.new) do
 
       resources :milestones, constraints: { id: /\d+/ } do
         member do
+          post :promote
           put :sort_issues
           put :sort_merge_requests
           get :merge_requests
@@ -393,7 +394,7 @@ constraints(ProjectUrlConstrainer.new) do
         end
       end
       namespace :settings do
-        get :members, to: redirect('/%{namespace_id}/%{project_id}/project_members')
+        get :members, to: redirect("%{namespace_id}/%{project_id}/project_members")
         resource :ci_cd, only: [:show], controller: 'ci_cd'
         resource :integrations, only: [:show]
         resource :repository, only: [:show], controller: :repository
diff --git a/config/routes/snippets.rb b/config/routes/snippets.rb
index 0a4ebac3ca3..81bc890d86b 100644
--- a/config/routes/snippets.rb
+++ b/config/routes/snippets.rb
@@ -17,5 +17,5 @@ resources :snippets, concerns: :awardable do
   end
 end
 
-get '/s/:username', to: redirect('/u/%{username}/snippets'),
+get '/s/:username', to: redirect('u/%{username}/snippets'),
                     constraints: { username: /[a-zA-Z.0-9_\-]+(?<!\.atom)/ }
diff --git a/config/routes/user.rb b/config/routes/user.rb
index e682dcd6663..733a3f6ce9a 100644
--- a/config/routes/user.rb
+++ b/config/routes/user.rb
@@ -22,17 +22,17 @@ scope(constraints: { username: Gitlab::PathRegex.root_namespace_route_regex }) d
     get :contributed, as: :contributed_projects
     get :snippets
     get :exists
-    get '/', to: redirect('/%{username}'), as: nil
+    get '/', to: redirect('%{username}'), as: nil
   end
 
   # Compatibility with old routing
   # TODO (dzaporozhets): remove in 10.0
-  get '/u/:username', to: redirect('/%{username}')
+  get '/u/:username', to: redirect('%{username}')
   # TODO (dzaporozhets): remove in 9.0
-  get '/u/:username/groups', to: redirect('/users/%{username}/groups')
-  get '/u/:username/projects', to: redirect('/users/%{username}/projects')
-  get '/u/:username/snippets', to: redirect('/users/%{username}/snippets')
-  get '/u/:username/contributed', to: redirect('/users/%{username}/contributed')
+  get '/u/:username/groups', to: redirect('users/%{username}/groups')
+  get '/u/:username/projects', to: redirect('users/%{username}/projects')
+  get '/u/:username/snippets', to: redirect('users/%{username}/snippets')
+  get '/u/:username/contributed', to: redirect('users/%{username}/contributed')
 end
 
 constraints(UserUrlConstrainer.new) do
diff --git a/db/migrate/20171017145932_add_new_circuitbreaker_settings_to_application_settings.rb b/db/migrate/20171017145932_add_new_circuitbreaker_settings_to_application_settings.rb
new file mode 100644
index 00000000000..07eb25c0b0f
--- /dev/null
+++ b/db/migrate/20171017145932_add_new_circuitbreaker_settings_to_application_settings.rb
@@ -0,0 +1,16 @@
+class AddNewCircuitbreakerSettingsToApplicationSettings < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  def change
+    add_column :application_settings,
+               :circuitbreaker_access_retries,
+               :integer,
+               default: 3
+    add_column :application_settings,
+               :circuitbreaker_backoff_threshold,
+               :integer,
+               default: 80
+  end
+end
diff --git a/db/post_migrate/20170525140254_rename_all_reserved_paths_again.rb b/db/post_migrate/20170525140254_rename_all_reserved_paths_again.rb
index 9441b236c8d..2125cc046e5 100644
--- a/db/post_migrate/20170525140254_rename_all_reserved_paths_again.rb
+++ b/db/post_migrate/20170525140254_rename_all_reserved_paths_again.rb
@@ -13,7 +13,6 @@ class RenameAllReservedPathsAgain < ActiveRecord::Migration
       .well-known
       abuse_reports
       admin
-      all
       api
       assets
       autocomplete
@@ -24,29 +23,20 @@ class RenameAllReservedPathsAgain < ActiveRecord::Migration
       groups
       health_check
       help
-      hooks
       import
       invites
-      issues
       jwt
       koding
-      member
-      merge_requests
-      new
-      notes
       notification_settings
       oauth
       profile
       projects
       public
-      repository
       robots.txt
       s
       search
       sent_notifications
-      services
       snippets
-      teams
       u
       unicorn_test
       unsubscribes
@@ -94,7 +84,6 @@ class RenameAllReservedPathsAgain < ActiveRecord::Migration
       notification_setting
       pipeline_quota
       projects
-      subgroups
   ].freeze
 
   def up
diff --git a/db/schema.rb b/db/schema.rb
index db545dba2b5..a43723b1fc6 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -138,6 +138,8 @@ ActiveRecord::Schema.define(version: 20171101130535) do
     t.integer "circuitbreaker_failure_wait_time", default: 30
     t.integer "circuitbreaker_failure_reset_time", default: 1800
     t.integer "circuitbreaker_storage_timeout", default: 30
+    t.integer "circuitbreaker_access_retries", default: 3
+    t.integer "circuitbreaker_backoff_threshold", default: 80
     t.integer "gitaly_timeout_default", default: 55
     t.integer "gitaly_timeout_fast", default: 10
   end
diff --git a/doc/administration/img/circuitbreaker_config.png b/doc/administration/img/circuitbreaker_config.png
index 9250d38297c..e811d173634 100644
--- a/doc/administration/img/circuitbreaker_config.png
+++ b/doc/administration/img/circuitbreaker_config.png
diff --git a/doc/administration/monitoring/performance/performance_bar.md b/doc/administration/monitoring/performance/performance_bar.md
index 68efe0aae5c..b9464945cea 100644
--- a/doc/administration/monitoring/performance/performance_bar.md
+++ b/doc/administration/monitoring/performance/performance_bar.md
@@ -28,6 +28,12 @@ will be allowed to display the Performance Bar.
 Make sure _Enable the Performance Bar_ is checked and hit
 **Save** to save the changes.
 
+Once the Performance Bar is enabled, you will need to press the [<kbd>p</kbd> +
+<kbd>b</kbd> keyboard shortcut](../../../workflow/shortcuts.md) to actually
+display it.
+
+You can toggle the Bar using the same shortcut.
+
 ---
 
 ![GitLab Performance Bar Admin Settings](img/performance_bar_configuration_settings.png)
diff --git a/doc/administration/monitoring/prometheus/gitlab_metrics.md b/doc/administration/monitoring/prometheus/gitlab_metrics.md
index 6baae20d16a..11d5e077a36 100644
--- a/doc/administration/monitoring/prometheus/gitlab_metrics.md
+++ b/doc/administration/monitoring/prometheus/gitlab_metrics.md
@@ -20,7 +20,7 @@ it, the client IP needs to be [included in a whitelist][whitelist].
 Currently the embedded Prometheus server is not automatically configured to
 collect metrics from this endpoint. We recommend setting up another Prometheus
 server, because the embedded server configuration is overwritten once every
-[reconfigure of GitLab][reconfigure]. In the future this will not be required. 
+[reconfigure of GitLab][reconfigure]. In the future this will not be required.
 
 ## Metrics available
 
@@ -45,6 +45,8 @@ In this experimental phase, only a few metrics are available:
 | redis_ping_success                | Gauge     | 9.4   | Whether or not the last redis ping succeeded |
 | redis_ping_latency_seconds        | Gauge     | 9.4   | Round trip time of the redis ping |
 | user_session_logins_total         | Counter   | 9.4   | Counter of how many users have logged in |
+| filesystem_circuitbreaker_latency_seconds | Histogram | 9.5 | Latency of the stat check the circuitbreaker uses to probe a shard |
+| filesystem_circuitbreaker         | Gauge     | 9.5   | Wether or not the circuit for a certain shard is broken or not |
 
 ## Metrics shared directory
 
diff --git a/doc/administration/repository_storage_paths.md b/doc/administration/repository_storage_paths.md
index efcabd69822..96f436fa7c3 100644
--- a/doc/administration/repository_storage_paths.md
+++ b/doc/administration/repository_storage_paths.md
@@ -109,6 +109,11 @@ This can be configured from the admin interface:
 
 ![circuitbreaker configuration](img/circuitbreaker_config.png)
 
+**Number of access attempts**: The number of attempts GitLab will make to access a
+storage when probing a shard.
+
+**Number of failures before backing off**: The number of failures after which
+GitLab will start temporarily disabling access to a storage shard on a host.
 
 **Maximum git storage failures:** The number of failures of after which GitLab will
 completely prevent access to the storage. The number of failures can be reset in
@@ -126,6 +131,15 @@ mount is reset.
 **Seconds to wait for a storage access attempt:** The time in seconds GitLab will
 try to access storage. After this time a timeout error will be raised.
 
+To enable the circuitbreaker for repository storage you can flip the feature flag from a rails console:
+
+```
+Feature.enable('git_storage_circuit_breaker')
+```
+
+Alternatively it can be enabled by setting `true` in the `GIT_STORAGE_CIRCUIT_BREAKER` environment variable.
+This approach would be used when enabling the circuit breaker on a single host.
+
 When storage failures occur, this will be visible in the admin interface like this:
 
 ![failing storage](img/failing_storage.png)
diff --git a/doc/administration/repository_storage_types.md b/doc/administration/repository_storage_types.md
index fa882bbe28a..0cb2648cc1e 100644
--- a/doc/administration/repository_storage_types.md
+++ b/doc/administration/repository_storage_types.md
@@ -25,7 +25,10 @@ Any change in the URL will need to be reflected on disk (when groups / users or
 of load in big installations, and can be even worst if they are using any type of network based filesystem.
 
 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.   
+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, 
+Docker Containers for the integrated Registry, etc.
 
 ## Hashed Storage
 
@@ -67,3 +70,23 @@ To migrate your existing projects to the new storage type, check the specific [r
 [ce-28283]: https://gitlab.com/gitlab-org/gitlab-ce/issues/28283
 [rake tasks]: raketasks/storage.md#migrate-existing-projects-to-hashed-storage
 [storage-paths]: repository_storage_types.md
+
+### Hashed Storage coverage
+
+We are incrementally moving every storable object in GitLab to the Hashed Storage pattern. You can check the current
+coverage status below.
+
+Not that things stored in 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 | 
+| ----------------| -------------- | -------------- | ------------- | -------------- |
+| Repository      | Yes            | Yes            | -             | 10.0           |
+| Attachments     | Yes            | Yes            | -             | 10.2           |
+| Avatars         | Yes            | No             | -             | -              | 
+| Pages           | Yes            | No             | -             | -              |
+| Docker Registry | Yes            | No             | -             | -              |
+| CI Build Logs   | No             | No             | -             | -              | 
+| CI Artifacts    | No             | No             | -             | -              | 
+| CI Cache        | No             | No             | Yes           | -              |
+| LFS Objects     | Yes            | No             | Yes (EEP)     | -              | 
diff --git a/doc/api/README.md b/doc/api/README.md
index 8f2a14e825e..89ffe9d7868 100644
--- a/doc/api/README.md
+++ b/doc/api/README.md
@@ -37,6 +37,7 @@ following locations:
 - [Notes](notes.md) (comments)
 - [Notification settings](notification_settings.md)
 - [Open source license templates](templates/licenses.md)
+- [Pages Domains](pages_domains.md)
 - [Pipelines](pipelines.md)
 - [Pipeline Triggers](pipeline_triggers.md)
 - [Pipeline Schedules](pipeline_schedules.md)
diff --git a/doc/api/groups.md b/doc/api/groups.md
index c2daa8bc029..99d200c9c93 100644
--- a/doc/api/groups.md
+++ b/doc/api/groups.md
@@ -40,6 +40,38 @@ GET /groups
 ]
 ```
 
+When adding the parameter `statistics=true` and the authenticated user is an admin, additional group statistics are returned.
+
+```
+GET /groups?statistics=true
+```
+
+```json
+[
+  {
+    "id": 1,
+    "name": "Foobar Group",
+    "path": "foo-bar",
+    "description": "An interesting group",
+    "visibility": "public",
+    "lfs_enabled": true,
+    "avatar_url": "http://localhost:3000/uploads/group/avatar/1/foo.jpg",
+    "web_url": "http://localhost:3000/groups/foo-bar",
+    "request_access_enabled": false,
+    "full_name": "Foobar Group",
+    "full_path": "foo-bar",
+    "parent_id": null,
+    "statistics": {
+      "storage_size" : 212,
+      "repository_size" : 33,
+      "lfs_objects_size" : 123,
+      "job_artifacts_size" : 57
+
+    }
+  }
+]
+```
+
 You can search for groups by name or path, see below.
 
 ## List a group's projects
diff --git a/doc/api/pages_domains.md b/doc/api/pages_domains.md
new file mode 100644
index 00000000000..51962595e33
--- /dev/null
+++ b/doc/api/pages_domains.md
@@ -0,0 +1,170 @@
+# Pages domains API
+
+Endpoints for connecting custom domain(s) and TLS certificates in [GitLab Pages](https://about.gitlab.com/features/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 pages domains
+
+Get a list of project pages domains. The user must have permissions to view pages domains.
+
+```http
+GET /projects/:id/pages/domains
+```
+
+| Attribute | Type           | Required | Description                              |
+| --------- | -------------- | -------- | ---------------------------------------- |
+| `id`      | integer/string | yes      | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user |
+
+```bash
+curl --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/projects/5/pages/domains
+```
+
+```json
+[
+  {
+    "domain": "www.domain.example",
+    "url": "http://www.domain.example"
+  },
+  {
+    "domain": "ssl.domain.example",
+    "url": "https://ssl.domain.example",
+    "certificate": {
+      "subject": "/O=Example, Inc./OU=Example Origin CA/CN=Example Origin Certificate",
+      "expired": false,
+      "certificate": "-----BEGIN CERTIFICATE-----\n … \n-----END CERTIFICATE-----",
+      "certificate_text": "Certificate:\n … \n"
+    }
+  }
+]
+```
+
+## Single pages domain
+
+Get a single project pages domain. The user must have permissions to view pages domains.
+
+```http
+GET /projects/:id/pages/domains/:domain
+```
+
+| Attribute | Type           | Required | Description                              |
+| --------- | -------------- | -------- | ---------------------------------------- |
+| `id`      | integer/string | yes      | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user |
+| `domain`  | string         | yes      | The domain                               |
+
+```bash
+curl --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/projects/5/pages/domains/www.domain.example
+```
+
+```json
+{
+  "domain": "www.domain.example",
+  "url": "http://www.domain.example"
+}
+```
+
+```bash
+curl --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/projects/5/pages/domains/ssl.domain.example
+```
+
+```json
+{
+  "domain": "ssl.domain.example",
+  "url": "https://ssl.domain.example",
+  "certificate": {
+    "subject": "/O=Example, Inc./OU=Example Origin CA/CN=Example Origin Certificate",
+    "expired": false,
+    "certificate": "-----BEGIN CERTIFICATE-----\n … \n-----END CERTIFICATE-----",
+    "certificate_text": "Certificate:\n … \n"
+  }
+}
+```
+
+## Create new pages domain
+
+Creates a new pages domain. The user must have permissions to create new pages domains.
+
+```http
+POST /projects/:id/pages/domains
+```
+
+| Attribute     | Type           | Required | Description                              |
+| ------------- | -------------- | -------- | ---------------------------------------- |
+| `id`          | integer/string | yes      | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user |
+| `domain`      | string         | yes      | The domain                               |
+| `certificate` | file/string    | no       | The certificate in PEM format with intermediates following in most specific to least specific order.|
+| `key`         | file/string    | no       | The certificate key in PEM format.       |
+
+```bash
+curl --request POST --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" --form="domain=ssl.domain.example" --form="certificate=@/path/to/cert.pem" --form="key=@/path/to/key.pem" https://gitlab.example.com/api/v4/projects/5/pages/domains
+```
+
+```bash
+curl --request POST --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" --form="domain=ssl.domain.example" --form="certificate=$CERT_PEM" --form="key=$KEY_PEM" https://gitlab.example.com/api/v4/projects/5/pages/domains
+```
+
+```json
+{
+  "domain": "ssl.domain.example",
+  "url": "https://ssl.domain.example",
+  "certificate": {
+    "subject": "/O=Example, Inc./OU=Example Origin CA/CN=Example Origin Certificate",
+    "expired": false,
+    "certificate": "-----BEGIN CERTIFICATE-----\n … \n-----END CERTIFICATE-----",
+    "certificate_text": "Certificate:\n … \n"
+  }
+}
+```
+
+## Update pages domain
+
+Updates an existing project pages domain. The user must have permissions to change an existing pages domains.
+
+```http
+PUT /projects/:id/pages/domains/:domain
+```
+
+| Attribute     | Type           | Required | Description                              |
+| ------------- | -------------- | -------- | ---------------------------------------- |
+| `id`          | integer/string | yes      | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user |
+| `domain`      | string         | yes      | The domain                               |
+| `certificate` | file/string    | no       | The certificate in PEM format with intermediates following in most specific to least specific order.|
+| `key`         | file/string    | no       | The certificate key in PEM format.       |
+
+```bash
+curl --request PUT --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" --form="certificate=@/path/to/cert.pem" --form="key=@/path/to/key.pem" https://gitlab.example.com/api/v4/projects/5/pages/domains/ssl.domain.example
+```
+
+```bash
+curl --request PUT --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" --form="certificate=$CERT_PEM" --form="key=$KEY_PEM" https://gitlab.example.com/api/v4/projects/5/pages/domains/ssl.domain.example
+```
+
+```json
+{
+  "domain": "ssl.domain.example",
+  "url": "https://ssl.domain.example",
+  "certificate": {
+    "subject": "/O=Example, Inc./OU=Example Origin CA/CN=Example Origin Certificate",
+    "expired": false,
+    "certificate": "-----BEGIN CERTIFICATE-----\n … \n-----END CERTIFICATE-----",
+    "certificate_text": "Certificate:\n … \n"
+  }
+}
+```
+
+## Delete pages domain
+
+Deletes an existing project pages domain.
+
+```http
+DELETE /projects/:id/pages/domains/:domain
+```
+
+| Attribute | Type           | Required | Description                              |
+| --------- | -------------- | -------- | ---------------------------------------- |
+| `id`      | integer/string | yes      | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user |
+| `domain`  | string         | yes      | The domain                               |
+
+```bash
+curl --request DELETE --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/projects/5/pages/domains/ssl.domain.example
+```
diff --git a/doc/api/pipelines.md b/doc/api/pipelines.md
index 890945cfc7e..a6631cab8c3 100644
--- a/doc/api/pipelines.md
+++ b/doc/api/pipelines.md
@@ -57,7 +57,7 @@ GET /projects/:id/pipelines/:pipeline_id
 | `pipeline_id` | integer | yes      | The ID of a pipeline   |
 
 ```
-curl --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" "https://gitlab.example.com/api/v4/projects/1/pipeline/46"
+curl --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" "https://gitlab.example.com/api/v4/projects/1/pipelines/46"
 ```
 
 Example of response
diff --git a/doc/api/services.md b/doc/api/services.md
index 49b87a4228c..e642ec964de 100644
--- a/doc/api/services.md
+++ b/doc/api/services.md
@@ -478,8 +478,8 @@ PUT /projects/:id/services/jira
 | --------- | ---- | -------- | ----------- |
 | `url`           | string | yes | The URL to the JIRA project which is being linked to this GitLab project, e.g., `https://jira.example.com`. |
 | `project_key`   | string | yes | The short identifier for your JIRA project, all uppercase, e.g., `PROJ`. |
-| `username`      | string | no  | The username of the user created to be used with GitLab/JIRA. |
-| `password`      | string | no  | The password of the user created to be used with GitLab/JIRA. |
+| `username`      | string | yes  | The username of the user created to be used with GitLab/JIRA. |
+| `password`      | string | yes  | The password of the user created to be used with GitLab/JIRA. |
 | `jira_issue_transition_id` | integer | no | The ID of a transition that moves issues to a closed state. You can find this number under the JIRA workflow administration (**Administration > Issues > Workflows**) by selecting **View** under **Operations** of the desired workflow of your project. The ID of each state can be found inside the parenthesis of each transition name under the **Transitions (id)** column ([see screenshot][trans]). By default, this ID is set to `2`. |
 
 ### Delete JIRA service
@@ -582,6 +582,40 @@ Delete Mattermost slash command service for a project.
 DELETE /projects/:id/services/mattermost-slash-commands
 ```
 
+## Packagist
+
+Update your project on Packagist, the main Composer repository, when commits or tags are pushed to GitLab.
+
+### Create/Edit Packagist service
+
+Set Packagist service for a project.
+
+```
+PUT /projects/:id/services/packagist
+```
+
+Parameters:
+
+- `username` (**required**)
+- `token` (**required**)
+- `server` (optional)
+
+### Delete Packagist service
+
+Delete Packagist service for a project.
+
+```
+DELETE /projects/:id/services/packagist
+```
+
+### Get Packagist service settings
+
+Get Packagist service settings for a project.
+
+```
+GET /projects/:id/services/packagist
+```
+
 ## Pipeline-Emails
 
 Get emails for GitLab CI pipelines.
diff --git a/doc/api/settings.md b/doc/api/settings.md
index 664f3ef7b77..4e24e4bbfc3 100644
--- a/doc/api/settings.md
+++ b/doc/api/settings.md
@@ -69,6 +69,8 @@ PUT /application/settings
 | `after_sign_up_text`                     | string           | no                                            | Text shown to the user after signing up                                                                                                                                                                                                                                                                                                                                                                                                                   |
 | `akismet_api_key`                        | string           | no                                            | API key for akismet spam protection                                                                                                                                                                                                                                                                                                                                                                                                                       |
 | `akismet_enabled`                        | boolean          | no                                            | Enable or disable akismet spam protection                                                                                                                                                                                                                                                                                                                                                                                                                 |
+| `circuitbreaker_access_retries           | integer          | no                                            | The number of attempts GitLab will make to access a storage.                                                                                                                                                                                                                                                                                                                                                                                              |
+| `circuitbreaker_backoff_threshold        | integer          | no                                            | The number of failures after which GitLab will start temporarily disabling access to a storage shard on a host.                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
 | `circuitbreaker_failure_count_threshold` | integer          | no                                            | The number of failures of after which GitLab will completely prevent access to the storage.                                                                                                                                                                                                                                                                                                                                                               |
 | `circuitbreaker_failure_reset_time`      | integer          | no                                            | Time in seconds GitLab will keep storage failure information. When no failures occur during this time, the failure information is reset.                                                                                                                                                                                                                                                                                                                  |
 | `circuitbreaker_failure_wait_time`       | integer          | no                                            | Time in seconds GitLab will block access to a failing storage to allow it to recover.                                                                                                                                                                                                                                                                                                                                                                     |
diff --git a/doc/development/ee_features.md b/doc/development/ee_features.md
new file mode 100644
index 00000000000..932a44f65e4
--- /dev/null
+++ b/doc/development/ee_features.md
@@ -0,0 +1,382 @@
+# Guidelines for implementing Enterprise Edition feature
+
+- **Write the code and the tests.**: As with any code, EE features should have
+  good test coverage to prevent regressions.
+- **Write documentation.**: Add documentation to the `doc/` directory. Describe
+  the feature and include screenshots, if applicable.
+- **Submit a MR to the `www-gitlab-com` project.**: Add the new feature to the
+  [EE features list][ee-features-list].
+
+## Act as CE when unlicensed
+
+Since the implementation of [GitLab CE features to work with unlicensed EE instance][ee-as-ce]
+GitLab Enterprise Edition should work like GitLab Community Edition
+when no license is active. So EE features always should be guarded by
+`project.feature_available?` or `group.feature_available?` (or
+`License.feature_available?` if it is a system-wide feature).
+
+CE specs should remain untouched as much as possible and extra specs
+should be added for EE. Licensed features can be stubbed using the
+spec helper `stub_licensed_features` in `EE::LicenseHelpers`.
+
+[ee-as-ce]: https://gitlab.com/gitlab-org/gitlab-ee/issues/2500
+
+## Separation of EE code
+
+We want a [single code base][] eventually, but before we reach the goal,
+we still need to merge changes from GitLab CE to EE. To help us get there,
+we should make sure that we no longer edit CE files in place in order to
+implement EE features.
+
+Instead, all EE codes should be put inside the `ee/` top-level directory, and
+tests should be put inside `spec/ee/`. We don't use `ee/spec` for now due to
+technical limitation. The rest of codes should be as close as to the CE files.
+
+[single code base]: https://gitlab.com/gitlab-org/gitlab-ee/issues/2952#note_41016454
+
+### EE-only features
+
+If the feature being developed is not present in any form in CE, we don't
+need to put the codes under `EE` namespace. For example, an EE model could
+go into: `ee/app/models/awesome.rb` using `Awesome` as the class name. This
+is applied not only to models. Here's a list of other examples:
+
+- `ee/app/controllers/foos_controller.rb`
+- `ee/app/finders/foos_finder.rb`
+- `ee/app/helpers/foos_helper.rb`
+- `ee/app/mailers/foos_mailer.rb`
+- `ee/app/models/foo.rb`
+- `ee/app/policies/foo_policy.rb`
+- `ee/app/serializers/foo_entity.rb`
+- `ee/app/serializers/foo_serializer.rb`
+- `ee/app/services/foo/create_service.rb`
+- `ee/app/validators/foo_attr_validator.rb`
+- `ee/app/workers/foo_worker.rb`
+
+### EE features based on CE features
+
+For features that build on existing CE features, write a module in the
+`EE` namespace and `prepend` it in the CE class. This makes conflicts
+less likely to happen during CE to EE merges because only one line is
+added to the CE class - the `prepend` line.
+
+Since the module would require an `EE` namespace, the file should also be
+put in an `ee/` sub-directory. For example, we want to extend the user model
+in EE, so we have a module called `::EE::User` put inside
+`ee/app/models/ee/user.rb`.
+
+This is also not just applied to models. Here's a list of other examples:
+
+- `ee/app/controllers/ee/foos_controller.rb`
+- `ee/app/finders/ee/foos_finder.rb`
+- `ee/app/helpers/ee/foos_helper.rb`
+- `ee/app/mailers/ee/foos_mailer.rb`
+- `ee/app/models/ee/foo.rb`
+- `ee/app/policies/ee/foo_policy.rb`
+- `ee/app/serializers/ee/foo_entity.rb`
+- `ee/app/serializers/ee/foo_serializer.rb`
+- `ee/app/services/ee/foo/create_service.rb`
+- `ee/app/validators/ee/foo_attr_validator.rb`
+- `ee/app/workers/ee/foo_worker.rb`
+
+#### Overriding CE methods
+
+To override a method present in the CE codebase, use `prepend`. It
+lets you override a method in a class with a method from a module, while
+still having access the class's implementation with `super`.
+
+There are a few gotchas with it:
+
+- you should always add a `raise NotImplementedError unless defined?(super)`
+  guard clause in the "overrider" method to ensure that if the method gets
+  renamed in CE, the EE override won't be silently forgotten.
+- when the "overrider" would add a line in the middle of the CE
+  implementation, you should refactor the CE method and split it in
+  smaller methods. Or create a "hook" method that is empty in CE,
+  and with the EE-specific implementation in EE.
+- when the original implementation contains a guard clause (e.g.
+  `return unless condition`), we cannot easily extend the behaviour by
+  overriding the method, because we can't know when the overridden method
+  (i.e. calling `super` in the overriding method) would want to stop early.
+  In this case, we shouldn't just override it, but update the original method
+  to make it call the other method we want to extend, like a [template method
+  pattern](https://en.wikipedia.org/wiki/Template_method_pattern).
+  For example, given this base:
+  ``` ruby
+    class Base
+      def execute
+        return unless enabled?
+
+        # ...
+        # ...
+      end
+    end
+  ```
+  Instead of just overriding `Base#execute`, we should update it and extract
+  the behaviour into another method:
+  ``` ruby
+    class Base
+      def execute
+        return unless enabled?
+
+        do_something
+      end
+
+      private
+
+      def do_something
+        # ...
+        # ...
+      end
+    end
+  ```
+  Then we're free to override that `do_something` without worrying about the
+  guards:
+  ``` ruby
+    module EE::Base
+      def do_something
+        # Follow the above pattern to call super and extend it
+      end
+    end
+  ```
+  This would require updating CE first, or make sure this is back ported to CE.
+
+When prepending, place them in the `ee/` specific sub-directory, and
+wrap class or module in `module EE` to avoid naming conflicts.
+
+For example to override the CE implementation of
+`ApplicationController#after_sign_out_path_for`:
+
+```ruby
+def after_sign_out_path_for(resource)
+  current_application_settings.after_sign_out_path.presence || new_user_session_path
+end
+```
+
+Instead of modifying the method in place, you should add `prepend` to
+the existing file:
+
+```ruby
+class ApplicationController < ActionController::Base
+  prepend EE::ApplicationController
+  # ...
+
+  def after_sign_out_path_for(resource)
+    current_application_settings.after_sign_out_path.presence || new_user_session_path
+  end
+
+  # ...
+end
+```
+
+And create a new file in the `ee/` sub-directory with the altered
+implementation:
+
+```ruby
+module EE
+  class ApplicationController
+    def after_sign_out_path_for(resource)
+      raise NotImplementedError unless defined?(super)
+
+      if Gitlab::Geo.secondary?
+        Gitlab::Geo.primary_node.oauth_logout_url(@geo_logout_state)
+      else
+        super
+      end
+    end
+  end
+end
+```
+
+#### Use self-descriptive wrapper methods
+
+When it's not possible/logical to modify the implementation of a
+method. Wrap it in a self-descriptive method and use that method.
+
+For example, in CE only an `admin` is allowed to access all private
+projects/groups, but in EE also an `auditor` has full private
+access. It would be incorrect to override the implementation of
+`User#admin?`, so instead add a method `full_private_access?` to
+`app/models/users.rb`. The implementation in CE will be:
+
+```ruby
+def full_private_access?
+  admin?
+end
+```
+
+In EE, the implementation `ee/app/models/ee/users.rb` would be:
+
+```ruby
+def full_private_access?
+  raise NotImplementedError unless defined?(super)
+  super || auditor?
+end
+```
+
+In `lib/gitlab/visibility_level.rb` this method is used to return the
+allowed visibilty levels:
+
+```ruby
+def levels_for_user(user = nil)
+  if user.full_private_access?
+    [PRIVATE, INTERNAL, PUBLIC]
+  elsif # ...
+end
+```
+
+See [CE MR][ce-mr-full-private] and [EE MR][ee-mr-full-private] for
+full implementation details.
+
+[ce-mr-full-private]: https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/12373
+[ee-mr-full-private]: https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/2199
+
+### Code in `app/controllers/`
+
+In controllers, the most common type of conflict is with `before_action` that
+has a list of actions in CE but EE adds some actions to that list.
+
+The same problem often occurs for `params.require` / `params.permit` calls.
+
+**Mitigations**
+
+Separate CE and EE actions/keywords. For instance for `params.require` in
+`ProjectsController`:
+
+```ruby
+def project_params
+  params.require(:project).permit(project_params_attributes)
+end
+
+# Always returns an array of symbols, created however best fits the use case.
+# It _should_ be sorted alphabetically.
+def project_params_attributes
+  %i[
+    description
+    name
+    path
+  ]
+end
+
+```
+
+In the `EE::ProjectsController` module:
+
+```ruby
+def project_params_attributes
+  super + project_params_attributes_ee
+end
+
+def project_params_attributes_ee
+  %i[
+    approvals_before_merge
+    approver_group_ids
+    approver_ids
+    ...
+  ]
+end
+```
+
+### Code in `app/models/`
+
+EE-specific models should `extend EE::Model`.
+
+For example, if EE has a specific `Tanuki` model, you would
+place it in `ee/app/models/ee/tanuki.rb`.
+
+### Code in `app/views/`
+
+It's a very frequent problem that EE is adding some specific view code in a CE
+view. For instance the approval code in the project's settings page.
+
+**Mitigations**
+
+Blocks of code that are EE-specific should be moved to partials. This
+avoids conflicts with big chunks of HAML code that that are not fun to
+resolve when you add the indentation to the equation.
+
+EE-specific views should be placed in `ee/app/views/ee/`, using extra
+sub-directories if appropriate.
+
+### Code in `lib/`
+
+Place EE-specific logic in the top-level `EE` module namespace. Namespace the
+class beneath the `EE` module just as you would normally.
+
+For example, if CE has LDAP classes in `lib/gitlab/ldap/` then you would place
+EE-specific LDAP classes in `ee/lib/ee/gitlab/ldap`.
+
+### Code in `spec/`
+
+When you're testing EE-only features, avoid adding examples to the
+existing CE specs. Also do no change existing CE examples, since they
+should remain working as-is when EE is running without a license.
+
+Instead place EE specs in the `spec/ee/spec` folder.
+
+## JavaScript code in `assets/javascripts/`
+
+To separate EE-specific JS-files we can also move the files into an `ee` folder.
+
+For example there can be an
+`app/assets/javascripts/protected_branches/protected_branches_bundle.js` and an
+EE counterpart
+`ee/app/assets/javascripts/protected_branches/protected_branches_bundle.js`.
+
+That way we can create a separate webpack bundle in `webpack.config.js`:
+
+```javascript
+    protected_branches:    '~/protected_branches',
+    ee_protected_branches: 'ee/protected_branches/protected_branches_bundle.js',
+```
+
+With the separate bundle in place, we can decide which bundle to load inside the
+view, using the `page_specific_javascript_bundle_tag` helper.
+
+```haml
+- content_for :page_specific_javascripts do
+  = page_specific_javascript_bundle_tag('protected_branches')
+```
+
+## SCSS code in `assets/stylesheets`
+
+To separate EE-specific styles in SCSS files, if a component you're adding styles for
+is limited to only EE, it is better to have a separate SCSS file in appropriate directory
+within `app/assets/stylesheets`.
+
+In some cases, this is not entirely possible or creating dedicated SCSS file is an overkill,
+e.g. a text style of some component is different for EE. In such cases,
+styles are usually kept in stylesheet that is common for both CE and EE, and it is wise
+to isolate such ruleset from rest of CE rules (along with adding comment describing the same)
+to avoid conflicts during CE to EE merge.
+
+#### Bad
+```scss
+.section-body {
+  .section-title {
+    background: $gl-header-color;
+  }
+
+  &.ee-section-body {
+    .section-title {
+      background: $gl-header-color-cyan;
+    }
+  }
+}
+```
+
+#### Good
+```scss
+.section-body {
+  .section-title {
+    background: $gl-header-color;
+  }
+}
+
+/* EE-specific styles */
+.section-body.ee-section-body {
+  .section-title {
+    background: $gl-header-color-cyan;
+  }
+}
+```
diff --git a/doc/development/fe_guide/index.md b/doc/development/fe_guide/index.md
index 73366eb9f3f..8f956681693 100644
--- a/doc/development/fe_guide/index.md
+++ b/doc/development/fe_guide/index.md
@@ -106,6 +106,10 @@ Frontend security practices.
 ## [Accessibility](accessibility.md)
 Our accessibility standards and resources.
 
+## [Internationalization (i18n) and Translations](../i18n/externalization.md)
+Frontend internationalization support is described in [this document](../i18n/).
+The [externalization part of the guide](../i18n/externalization.md) explains the helpers/methods available.
+
 
 [rails]: http://rubyonrails.org/
 [haml]: http://haml.info/
diff --git a/doc/development/i18n/externalization.md b/doc/development/i18n/externalization.md
index 167260b6e0e..7c38260406d 100644
--- a/doc/development/i18n/externalization.md
+++ b/doc/development/i18n/externalization.md
@@ -180,15 +180,43 @@ aren't in the message with id `1 pipeline`.
 
 ## Working with special content
 
+
+### Just marking content for parsing
+
+- In Ruby/HAML:
+
+    ```ruby
+    _('Subscribe')
+    ```
+
+- In JavaScript:
+
+    ```js
+    import { __ } from '../../../locale';
+    const label = __('Subscribe');
+    ```
+
+
+Sometimes there are some dynamic translations that can't be found by the
+parser when running `bundle exec rake gettext:find`. For these scenarios you can
+use the [`_N` method](https://github.com/grosser/gettext_i18n_rails/blob/c09e38d481e0899ca7d3fc01786834fa8e7aab97/Readme.md#unfound-translations-with-rake-gettextfind).
+
+There is also and alternative method to [translate messages from validation errors](https://github.com/grosser/gettext_i18n_rails/blob/c09e38d481e0899ca7d3fc01786834fa8e7aab97/Readme.md#option-a).
+
 ### Interpolation
 
 - In Ruby/HAML:
 
     ```ruby
-    _("Hello %{name}") % { name: 'Joe' }
+    _("Hello %{name}") % { name: 'Joe' } => 'Hello Joe'
     ```
 
-- In JavaScript: Not supported at this moment.
+- In JavaScript:
+
+    ```js
+    import { __, sprintf } from '../../../locale';
+    sprintf(__('Hello %{username}'), { username: 'Joe' }) => 'Hello Joe'
+    ```
 
 ### Plurals
 
@@ -234,14 +262,6 @@ Sometimes you need to add some context to the text that you want to translate
     s__('OpenedNDaysAgo|Opened')
     ```
 
-### Just marking content for parsing
-
-Sometimes there are some dynamic translations that can't be found by the
-parser when running `bundle exec rake gettext:find`. For these scenarios you can
-use the [`_N` method](https://github.com/grosser/gettext_i18n_rails/blob/c09e38d481e0899ca7d3fc01786834fa8e7aab97/Readme.md#unfound-translations-with-rake-gettextfind).
-
-There is also and alternative method to [translate messages from validation errors](https://github.com/grosser/gettext_i18n_rails/blob/c09e38d481e0899ca7d3fc01786834fa8e7aab97/Readme.md#option-a).
-
 ## Adding a new language
 
 Let's suppose you want to add translations for a new language, let's say French.
diff --git a/doc/gitlab-basics/add-merge-request.md b/doc/gitlab-basics/add-merge-request.md
index bf01fe51dc3..5cc014419ad 100644
--- a/doc/gitlab-basics/add-merge-request.md
+++ b/doc/gitlab-basics/add-merge-request.md
@@ -3,31 +3,28 @@
 Merge requests are useful to integrate separate changes that you've made to a
 project, on different branches. This is a brief guide on how to create a merge
 request. For more information, check the
-[merge requests documentation](../user/project/merge_requests.md).
+[merge requests documentation](../user/project/merge_requests/index.md).
 
 ---
 
 1. Before you start, you should have already [created a branch](create-branch.md)
    and [pushed your changes](basic-git-commands.md) to GitLab.
-
-1. You can then go to the project where you'd like to merge your changes and
-   click on the **Merge requests** tab.
-
-    ![Merge requests](img/project_navbar.png)
-
+1. Go to the project where you'd like to merge your changes and click on the
+   **Merge requests** tab.
 1. Click on **New merge request** on the right side of the screen.
-
-    ![New Merge Request](img/merge_request_new.png)
-
-1. Select a source branch and click on the **Compare branches and continue** button.
+1. From there on, you have the option to select the source branch and the target
+   branch you'd like to compare to. The default target project is the upstream
+   repository, but you can choose to compare across any of its forks.
 
     ![Select a branch](img/merge_request_select_branch.png)
 
+1. When ready, click on the **Compare branches and continue** button.
 1. At a minimum, add a title and a description to your merge request. Optionally,
    select a user to review your merge request and to accept or close it. You may
    also select a milestone and labels.
 
     ![New merge request page](img/merge_request_page.png)
 
-1. When ready, click on the **Submit merge request** button. Your merge request
-   will be ready to be approved and published.
+1. When ready, click on the **Submit merge request** button.
+
+Your merge request will be ready to be approved and merged.
diff --git a/doc/gitlab-basics/img/merge_request_new.png b/doc/gitlab-basics/img/merge_request_new.png
deleted file mode 100644
index 6fcd7bebada..00000000000
--- a/doc/gitlab-basics/img/merge_request_new.png
+++ /dev/null
diff --git a/doc/gitlab-basics/img/merge_request_select_branch.png b/doc/gitlab-basics/img/merge_request_select_branch.png
index 9f6b93943a9..57ea0e65f34 100644
--- a/doc/gitlab-basics/img/merge_request_select_branch.png
+++ b/doc/gitlab-basics/img/merge_request_select_branch.png
diff --git a/doc/gitlab-basics/img/project_navbar.png b/doc/gitlab-basics/img/project_navbar.png
deleted file mode 100644
index be6f38ede32..00000000000
--- a/doc/gitlab-basics/img/project_navbar.png
+++ /dev/null
diff --git a/doc/integration/saml.md b/doc/integration/saml.md
index b5b245c626f..3ae98adc465 100644
--- a/doc/integration/saml.md
+++ b/doc/integration/saml.md
@@ -132,14 +132,17 @@ On the sign in page there should now be a SAML button below the regular sign in
 Click the icon to begin the authentication process. If everything goes well the user
 will be returned to GitLab and will be signed in.
 
-## External Groups
+## Marking Users as External based on SAML Groups
 
 >**Note:**
 This setting is only available on GitLab 8.7 and above.
 
-SAML login includes support for external groups. You can define in the SAML
-settings which groups, to which your users belong in your IdP, you wish to be
-marked as [external](../user/permissions.md).
+SAML login includes support for automatically identifying whether a user should
+be considered an [external](../user/permissions.md) user based on the user's group
+membership in the SAML identity provider. This feature **does not** allow you to
+automatically add users to GitLab [Groups](../user/group/index.md), it simply 
+allows you to mark users as External if they are members of certain groups in the 
+Identity Provider.
 
 ### Requirements
 
diff --git a/doc/policy/maintenance.md b/doc/policy/maintenance.md
index 7ab56c89014..8d0afa9e692 100644
--- a/doc/policy/maintenance.md
+++ b/doc/policy/maintenance.md
@@ -19,24 +19,30 @@ For example, for GitLab version 10.5.7:
 * `5` represents minor version
 * `7` represents patch number
 
-## Security releases
+## Patch releases
 
-The current stable release will receive security patches and bug fixes
-(eg. `8.9.0` -> `8.9.1`).
+Patch releases usually only include bug fixes and are only done for the current
+stable release. That said, in some cases, we may backport it to previous stable
+release, depending on the severity of the bug.
 
-Feature releases will mark the next supported stable
-release where the minor version is increased numerically by increments of one
-(eg. `8.9 -> 8.10`).
+For instance, if we release `10.1.1` with a fix for a severe bug introduced in
+`10.0.0`, we could backport the fix to a new `10.0.x` patch release.
 
-Our current policy is to support one stable release at any given time.
-For medium-level security issues, we may consider backporting to the previous two
+### Security releases
+
+Security releases are a special kind of patch release that only include security
+fixes and patches (see below).
+
+Our current policy is to support one stable release at any given time, but for
+medium-level security issues, we may backport security fixes to the previous two
 monthly releases.
 
-For very serious security issues, there is [precedent](https://about.gitlab.com/2016/05/02/cve-2016-4340-patches/)
-to backport security fixes to even more monthly releases of GitLab. This decision
-is made on a case-by-case basis.
+For very serious security issues, there is
+[precedent](https://about.gitlab.com/2016/05/02/cve-2016-4340-patches/)
+to backport security fixes to even more monthly releases of GitLab.
+This decision is made on a case-by-case basis.
 
-## Version support
+## Upgrade recommendations
 
 We encourage everyone to run the latest stable release to ensure that you can
 easily upgrade to the most secure and feature-rich GitLab experience. In order
@@ -70,7 +76,6 @@ Please see the table below for some examples:
 | -------------- | ------------ | ------------------------ | ---------------- |
 | 9.4.5   | 8.13.4   | `8.13.4` -> `8.17.7` -> `9.4.5`     | `8.17.7` is the last version in version `8` |
 | 10.1.4   | 8.13.4   | `8.13.4` -> `8.17.7` -> `9.5.8` -> `10.1.4` | `8.17.7` is the last version in version `8`, `9.5.8` is the last version in version `9` |
-|
 
 More information about the release procedures can be found in our
 [release-tools documentation][rel]. You may also want to read our
diff --git a/doc/raketasks/backup_restore.md b/doc/raketasks/backup_restore.md
index e4c09b2b507..54c3e20d61d 100644
--- a/doc/raketasks/backup_restore.md
+++ b/doc/raketasks/backup_restore.md
@@ -136,44 +136,54 @@ In the example below we use Amazon S3 for storage, but Fog also lets you use
 for AWS, Google, OpenStack Swift, Rackspace and Aliyun as well. A local driver is
 [also available](#uploading-to-locally-mounted-shares).
 
-For omnibus packages, add the following to `/etc/gitlab/gitlab.rb`:
+#### Using Amazon S3
 
-```ruby
-gitlab_rails['backup_upload_connection'] = {
-  'provider' => 'AWS',
-  'region' => 'eu-west-1',
-  'aws_access_key_id' => 'AKIAKIAKI',
-  'aws_secret_access_key' => 'secret123'
-  # If using an IAM Profile, don't configure aws_access_key_id & aws_secret_access_key
-  # 'use_iam_profile' => true
-}
-gitlab_rails['backup_upload_remote_directory'] = 'my.s3.bucket'
-```
+For Omnibus GitLab packages:
+
+1. Add the following to `/etc/gitlab/gitlab.rb`:
+
+    ```ruby
+    gitlab_rails['backup_upload_connection'] = {
+      'provider' => 'AWS',
+      'region' => 'eu-west-1',
+      'aws_access_key_id' => 'AKIAKIAKI',
+      'aws_secret_access_key' => 'secret123'
+      # If using an IAM Profile, don't configure aws_access_key_id & aws_secret_access_key
+      # 'use_iam_profile' => true
+    }
+    gitlab_rails['backup_upload_remote_directory'] = 'my.s3.bucket'
+    ```
+
+1. [Reconfigure GitLab] for the changes to take effect
 
-Make sure to run `sudo gitlab-ctl reconfigure` after editing `/etc/gitlab/gitlab.rb` to reflect the changes.
+---
 
 For installations from source:
 
-```yaml
-  backup:
-    # snip
-    upload:
-      # Fog storage connection settings, see http://fog.io/storage/ .
-      connection:
-        provider: AWS
-        region: eu-west-1
-        aws_access_key_id: AKIAKIAKI
-        aws_secret_access_key: 'secret123'
-        # If using an IAM Profile, leave aws_access_key_id & aws_secret_access_key empty
-        # ie. aws_access_key_id: ''
-        # use_iam_profile: 'true'
-      # The remote 'directory' to store your backups. For S3, this would be the bucket name.
-      remote_directory: 'my.s3.bucket'
-      # Turns on AWS Server-Side Encryption with Amazon S3-Managed Keys for backups, this is optional
-      # encryption: 'AES256'
-      # Specifies Amazon S3 storage class to use for backups, this is optional
-      # storage_class: 'STANDARD'
-```
+1. Edit `home/git/gitlab/config/gitlab.yml`:
+
+    ```yaml
+      backup:
+        # snip
+        upload:
+          # Fog storage connection settings, see http://fog.io/storage/ .
+          connection:
+            provider: AWS
+            region: eu-west-1
+            aws_access_key_id: AKIAKIAKI
+            aws_secret_access_key: 'secret123'
+            # If using an IAM Profile, leave aws_access_key_id & aws_secret_access_key empty
+            # ie. aws_access_key_id: ''
+            # use_iam_profile: 'true'
+          # The remote 'directory' to store your backups. For S3, this would be the bucket name.
+          remote_directory: 'my.s3.bucket'
+          # Turns on AWS Server-Side Encryption with Amazon S3-Managed Keys for backups, this is optional
+          # encryption: 'AES256'
+          # Specifies Amazon S3 storage class to use for backups, this is optional
+          # storage_class: 'STANDARD'
+    ```
+
+1. [Restart GitLab] for the changes to take effect
 
 If you are uploading your backups to S3 you will probably want to create a new
 IAM user with restricted access rights. To give the upload user access only for
@@ -226,6 +236,50 @@ with the name of your bucket:
 }
 ```
 
+#### Using Google Cloud Storage
+
+If you want to use Google Cloud Storage to save backups, you'll have to create
+an access key from the Google console first:
+
+1. Go to the storage settings page https://console.cloud.google.com/storage/settings
+1. Select "Interoperability" and create an access key
+1. Make note of the "Access Key" and "Secret" and replace them in the
+   configurations below
+1. Make sure you already have a bucket created
+
+For Omnibus GitLab packages:
+
+1. Edit `/etc/gitlab/gitlab.rb`:
+
+    ```ruby
+    gitlab_rails['backup_upload_connection'] = {
+      'provider' => 'Google',
+      'google_storage_access_key_id' => 'Access Key',
+      'google_storage_secret_access_key' => 'Secret'
+    }
+    gitlab_rails['backup_upload_remote_directory'] = 'my.google.bucket'
+    ```
+
+1. [Reconfigure GitLab] for the changes to take effect
+
+---
+
+For installations from source:
+
+1. Edit `home/git/gitlab/config/gitlab.yml`:
+
+    ```yaml
+      backup:
+        upload:
+          connection:
+            provider: 'Google'
+            google_storage_access_key_id: 'Access Key'
+            google_storage_secret_access_key: 'Secret'
+          remote_directory: 'my.google.bucket'
+    ```
+
+1. [Restart GitLab] for the changes to take effect
+
 ### Uploading to locally mounted shares
 
 You may also send backups to a mounted share (`NFS` / `CIFS` / `SMB` / etc.) by
@@ -554,3 +608,6 @@ The rake task runs this as the `gitlab` user which does not have the superuser a
 Those objects have no influence on the database backup/restore but they give this annoying warning.
 
 For more information see similar questions on postgresql issue tracker[here](http://www.postgresql.org/message-id/201110220712.30886.adrian.klaver@gmail.com) and [here](http://www.postgresql.org/message-id/2039.1177339749@sss.pgh.pa.us) as well as [stack overflow](http://stackoverflow.com/questions/4368789/error-must-be-owner-of-language-plpgsql).
+
+[reconfigure GitLab]: ../administration/restart_gitlab.md#omnibus-gitlab-reconfigure
+[restart GitLab]: ../administration/restart_gitlab.md#installations-from-source
diff --git a/doc/user/project/import/index.md b/doc/user/project/import/index.md
index 8da6e2a8207..e2b285678c3 100644
--- a/doc/user/project/import/index.md
+++ b/doc/user/project/import/index.md
@@ -4,7 +4,7 @@
 1. [From ClearCase](clearcase.md)
 1. [From CVS](cvs.md)
 1. [From FogBugz](fogbugz.md)
-1. [From GitHub.com of GitHub Enterprise](github.md)
+1. [From GitHub.com or GitHub Enterprise](github.md)
 1. [From GitLab.com](gitlab_com.md)
 1. [From Gitea](gitea.md)
 1. [From Perforce](perforce.md)
diff --git a/doc/user/project/integrations/project_services.md b/doc/user/project/integrations/project_services.md
index 51989ccaaea..a0405161495 100644
--- a/doc/user/project/integrations/project_services.md
+++ b/doc/user/project/integrations/project_services.md
@@ -43,6 +43,7 @@ Click on the service links to see further configuration instructions and details
 | [Mattermost slash commands](mattermost_slash_commands.md) | Mattermost chat and ChatOps slash commands |
 | [Mattermost Notifications](mattermost.md) | Receive event notifications in Mattermost |
 | [Microsoft teams](microsoft_teams.md) |  Receive notifications for actions that happen on GitLab into a room on Microsoft Teams using Office 365 Connectors |
+| Packagist | Update your project on Packagist, the main Composer repository |
 | Pipelines emails | Email the pipeline status to a list of recipients |
 | [Slack Notifications](slack.md) | Send GitLab events (e.g. issue created) to Slack as notifications |
 | [Slack slash commands](slack_slash_commands.md) | Use slash commands in Slack to control GitLab |
diff --git a/doc/user/project/integrations/webhooks.md b/doc/user/project/integrations/webhooks.md
index 7abc600a680..df75e25e12b 100644
--- a/doc/user/project/integrations/webhooks.md
+++ b/doc/user/project/integrations/webhooks.md
@@ -76,6 +76,7 @@ X-Gitlab-Event: Push Hook
   "user_avatar": "https://s.gravatar.com/avatar/d4c74594d841139328695756648b6bd6?s=8://s.gravatar.com/avatar/d4c74594d841139328695756648b6bd6?s=80",
   "project_id": 15,
   "project":{
+    "id": 15,
     "name":"Diaspora",
     "description":"",
     "web_url":"http://example.com/mike/diaspora",
@@ -156,6 +157,7 @@ X-Gitlab-Event: Tag Push Hook
   "user_avatar": "https://s.gravatar.com/avatar/d4c74594d841139328695756648b6bd6?s=8://s.gravatar.com/avatar/d4c74594d841139328695756648b6bd6?s=80",
   "project_id": 1,
   "project":{
+    "id": 1,
     "name":"Example",
     "description":"",
     "web_url":"http://example.com/jsmith/example",
@@ -206,6 +208,7 @@ X-Gitlab-Event: Issue Hook
     "avatar_url": "http://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=40\u0026d=identicon"
   },
   "project": {
+    "id": 1,
     "name":"Gitlab Test",
     "description":"Aut reprehenderit ut est.",
     "web_url":"http://example.com/gitlabhq/gitlab-test",
@@ -335,6 +338,7 @@ X-Gitlab-Event: Note Hook
   },
   "project_id": 5,
   "project":{
+    "id": 5,
     "name":"Gitlab Test",
     "description":"Aut reprehenderit ut est.",
     "web_url":"http://example.com/gitlabhq/gitlab-test",
@@ -414,6 +418,7 @@ X-Gitlab-Event: Note Hook
   },
   "project_id": 5,
   "project":{
+    "id": 5,
     "name":"Gitlab Test",
     "description":"Aut reprehenderit ut est.",
     "web_url":"http://example.com/gitlab-org/gitlab-test",
@@ -540,6 +545,7 @@ X-Gitlab-Event: Note Hook
   },
   "project_id": 5,
   "project":{
+    "id": 5,
     "name":"Gitlab Test",
     "description":"Aut reprehenderit ut est.",
     "web_url":"http://example.com/gitlab-org/gitlab-test",
@@ -618,6 +624,7 @@ X-Gitlab-Event: Note Hook
   },
   "project_id": 5,
   "project":{
+    "id": 5,
     "name":"Gitlab Test",
     "description":"Aut reprehenderit ut est.",
     "web_url":"http://example.com/gitlab-org/gitlab-test",
@@ -692,6 +699,7 @@ X-Gitlab-Event: Merge Request Hook
     "avatar_url": "http://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=40\u0026d=identicon"
   },
   "project": {
+    "id": 1,
     "name":"Gitlab Test",
     "description":"Aut reprehenderit ut est.",
     "web_url":"http://example.com/gitlabhq/gitlab-test",
@@ -848,6 +856,7 @@ X-Gitlab-Event: Wiki Page Hook
     "avatar_url": "http://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80\u0026d=identicon"
   },
   "project": {
+    "id": 1,
     "name": "awesome-project",
     "description": "This is awesome",
     "web_url": "http://example.com/root/awesome-project",
@@ -919,6 +928,7 @@ X-Gitlab-Event: Pipeline Hook
       "avatar_url": "http://www.gravatar.com/avatar/e32bd13e2add097461cb96824b7a829c?s=80\u0026d=identicon"
    },
    "project":{
+      "id": 1,
       "name": "Gitlab Test",
       "description": "Atque in sunt eos similique dolores voluptatem.",
       "web_url": "http://192.168.64.1:3005/gitlab-org/gitlab-test",
diff --git a/doc/user/project/merge_requests/index.md b/doc/user/project/merge_requests/index.md
index 6289fcf3c2b..4b2e042251b 100644
--- a/doc/user/project/merge_requests/index.md
+++ b/doc/user/project/merge_requests/index.md
@@ -34,7 +34,6 @@ With **[GitLab Enterprise Edition][ee]**, you can also:
 - View the deployment process across projects with [Multi-Project Pipeline Graphs](https://docs.gitlab.com/ee/ci/multi_project_pipeline_graphs.html#multi-project-pipeline-graphs) (available only in GitLab Enterprise Edition Premium)
 - Request [approvals](https://docs.gitlab.com/ee/user/project/merge_requests/merge_request_approvals.html) from your managers (available in GitLab Enterprise Edition Starter)
 - [Squash and merge](https://docs.gitlab.com/ee/user/project/merge_requests/squash_and_merge.html) for a cleaner commit history (available in GitLab Enterprise Edition Starter)
-- Enable [semi-linear history merge requests](https://docs.gitlab.com/ee/user/project/merge_requests/index.html#semi-linear-history-merge-requests) as another security layer to guarantee the pipeline is passing in the target branch (available in GitLab Enterprise Edition Starter)
 - Analise the impact of your changes with [Code Quality reports](https://docs.gitlab.com/ee/user/project/merge_requests/code_quality_diff.html) (available in GitLab Enterprise Edition Starter)
 
 ## Use cases
diff --git a/doc/user/project/milestones/index.md b/doc/user/project/milestones/index.md
index 876b98a4dc5..83adbd8cce2 100644
--- a/doc/user/project/milestones/index.md
+++ b/doc/user/project/milestones/index.md
@@ -29,7 +29,8 @@ In addition to that you will be able to filter issues or merge requests by group
 
 ## Milestone promotion
 
-You will be able to promote a project milestone to a group milestone [in the future](https://gitlab.com/gitlab-org/gitlab-ce/issues/35833).
+Project milestones can be promoted to group milestones if its project belongs to a group. When a milestone is promoted all other milestones across the group projects with the same title will be merged into it, which means all milestone's children like issues, merge requests and boards will be moved into the new promoted milestone.
+The promote button can be found in the milestone view or milestones list.
 
 ## Special milestone filters
 
diff --git a/doc/workflow/shortcuts.md b/doc/workflow/shortcuts.md
index 87416008e98..2e1bd6bfe5c 100644
--- a/doc/workflow/shortcuts.md
+++ b/doc/workflow/shortcuts.md
@@ -9,7 +9,7 @@ You can see GitLab's keyboard shortcuts by using 'shift + ?'
 | <kbd>n</kbd> | Main navigation |
 | <kbd>s</kbd> | Focus search |
 | <kbd>f</kbd> | Focus filter |
-| <kbd>p b</kbd> | Show/hide the Performance Bar |
+| <kbd>p</kbd> + <kbd>b</kbd> | Show/hide the Performance Bar |
 | <kbd>?</kbd> | Show/hide this dialog |
 | <kbd>⌘</kbd> + <kbd>shift</kbd> + <kbd>p</kbd> | Toggle markdown preview |
 | <kbd>↑</kbd> | Edit last comment (when focused on an empty textarea) |
diff --git a/features/steps/project/issues/issues.rb b/features/steps/project/issues/issues.rb
index 2c3ef2efd52..3843374678c 100644
--- a/features/steps/project/issues/issues.rb
+++ b/features/steps/project/issues/issues.rb
@@ -20,11 +20,13 @@ class Spinach::Features::ProjectIssues < Spinach::FeatureSteps
   end
 
   step 'I should see that I am subscribed' do
-    expect(find('.issuable-subscribe-button span')).to have_content 'Unsubscribe'
+    wait_for_requests
+    expect(find('.js-issuable-subscribe-button span')).to have_content 'Unsubscribe'
   end
 
   step 'I should see that I am unsubscribed' do
-    expect(find('.issuable-subscribe-button span')).to have_content 'Subscribe'
+    wait_for_requests
+    expect(find('.js-issuable-subscribe-button span')).to have_content 'Subscribe'
   end
 
   step 'I click link "Closed"' do
diff --git a/lib/additional_email_headers_interceptor.rb b/lib/additional_email_headers_interceptor.rb
index 2358fa6bbfd..3cb1694b9f1 100644
--- a/lib/additional_email_headers_interceptor.rb
+++ b/lib/additional_email_headers_interceptor.rb
@@ -1,8 +1,6 @@
 class AdditionalEmailHeadersInterceptor
   def self.delivering_email(message)
-    message.headers(
-      'Auto-Submitted' => 'auto-generated',
-      'X-Auto-Response-Suppress' => 'All'
-    )
+    message.header['Auto-Submitted'] ||= 'auto-generated'
+    message.header['X-Auto-Response-Suppress'] ||= 'All'
   end
 end
diff --git a/lib/api/api.rb b/lib/api/api.rb
index 99fcc59ba04..7db18e25a5f 100644
--- a/lib/api/api.rb
+++ b/lib/api/api.rb
@@ -131,6 +131,7 @@ module API
     mount ::API::Namespaces
     mount ::API::Notes
     mount ::API::NotificationSettings
+    mount ::API::PagesDomains
     mount ::API::Pipelines
     mount ::API::PipelineSchedules
     mount ::API::ProjectHooks
diff --git a/lib/api/entities.rb b/lib/api/entities.rb
index 5f0bad14839..efe874b2e6b 100644
--- a/lib/api/entities.rb
+++ b/lib/api/entities.rb
@@ -1043,5 +1043,22 @@ module API
       expose :key
       expose :value
     end
+
+    class PagesDomainCertificate < Grape::Entity
+      expose :subject
+      expose :expired?, as: :expired
+      expose :certificate
+      expose :certificate_text
+    end
+
+    class PagesDomain < Grape::Entity
+      expose :domain
+      expose :url
+      expose :certificate,
+             if: ->(pages_domain, _) { pages_domain.certificate? },
+             using: PagesDomainCertificate do |pages_domain|
+        pages_domain
+      end
+    end
   end
 end
diff --git a/lib/api/helpers.rb b/lib/api/helpers.rb
index 2b316b58ed9..7a2ec865860 100644
--- a/lib/api/helpers.rb
+++ b/lib/api/helpers.rb
@@ -184,6 +184,10 @@ module API
       end
     end
 
+    def require_pages_enabled!
+      not_found! unless user_project.pages_available?
+    end
+
     def can?(object, action, subject = :global)
       Ability.allowed?(object, action, subject)
     end
diff --git a/lib/api/merge_requests.rb b/lib/api/merge_requests.rb
index be843ec8251..726f09e3669 100644
--- a/lib/api/merge_requests.rb
+++ b/lib/api/merge_requests.rb
@@ -295,7 +295,7 @@ module API
 
         unauthorized! unless merge_request.can_cancel_merge_when_pipeline_succeeds?(current_user)
 
-        ::MergeRequest::MergeWhenPipelineSucceedsService
+        ::MergeRequests::MergeWhenPipelineSucceedsService
           .new(merge_request.target_project, current_user)
           .cancel(merge_request)
       end
diff --git a/lib/api/pages_domains.rb b/lib/api/pages_domains.rb
new file mode 100644
index 00000000000..259f3f34068
--- /dev/null
+++ b/lib/api/pages_domains.rb
@@ -0,0 +1,117 @@
+module API
+  class PagesDomains < Grape::API
+    include PaginationParams
+
+    before do
+      authenticate!
+      require_pages_enabled!
+    end
+
+    after_validation do
+      normalize_params_file_to_string
+    end
+
+    helpers do
+      def find_pages_domain!
+        user_project.pages_domains.find_by(domain: params[:domain]) || not_found!('PagesDomain')
+      end
+
+      def pages_domain
+        @pages_domain ||= find_pages_domain!
+      end
+
+      def normalize_params_file_to_string
+        params.each do |k, v|
+          if v.is_a?(Hash) && v.key?(:tempfile)
+            params[k] = v[:tempfile].to_a.join('')
+          end
+        end
+      end
+    end
+
+    params do
+      requires :id, type: String, desc: 'The ID of a project'
+    end
+    resource :projects, requirements: { id: %r{[^/]+} } do
+      desc 'Get all pages domains' do
+        success Entities::PagesDomain
+      end
+      params do
+        use :pagination
+      end
+      get ":id/pages/domains" do
+        authorize! :read_pages, user_project
+
+        present paginate(user_project.pages_domains.order(:domain)), with: Entities::PagesDomain
+      end
+
+      desc 'Get a single pages domain' do
+        success Entities::PagesDomain
+      end
+      params do
+        requires :domain, type: String, desc: 'The domain'
+      end
+      get ":id/pages/domains/:domain", requirements: { domain: %r{[^/]+} } do
+        authorize! :read_pages, user_project
+
+        present pages_domain, with: Entities::PagesDomain
+      end
+
+      desc 'Create a new pages domain' do
+        success Entities::PagesDomain
+      end
+      params do
+        requires :domain, type: String, desc: 'The domain'
+        optional :certificate, allow_blank: false, types: [File, String], desc: 'The certificate'
+        optional :key, allow_blank: false, types: [File, String], desc: 'The key'
+        all_or_none_of :certificate, :key
+      end
+      post ":id/pages/domains" do
+        authorize! :update_pages, user_project
+
+        pages_domain_params = declared(params, include_parent_namespaces: false)
+        pages_domain = user_project.pages_domains.create(pages_domain_params)
+
+        if pages_domain.persisted?
+          present pages_domain, with: Entities::PagesDomain
+        else
+          render_validation_error!(pages_domain)
+        end
+      end
+
+      desc 'Updates a pages domain'
+      params do
+        requires :domain, type: String, desc: 'The domain'
+        optional :certificate, allow_blank: false, types: [File, String], desc: 'The certificate'
+        optional :key, allow_blank: false, types: [File, String], desc: 'The key'
+      end
+      put ":id/pages/domains/:domain", requirements: { domain: %r{[^/]+} } do
+        authorize! :update_pages, user_project
+
+        pages_domain_params = declared(params, include_parent_namespaces: false)
+
+        # Remove empty private key if certificate is not empty.
+        if pages_domain_params[:certificate] && !pages_domain_params[:key]
+          pages_domain_params.delete(:key)
+        end
+
+        if pages_domain.update(pages_domain_params)
+          present pages_domain, with: Entities::PagesDomain
+        else
+          render_validation_error!(pages_domain)
+        end
+      end
+
+      desc 'Delete a pages domain'
+      params do
+        requires :domain, type: String, desc: 'The domain'
+      end
+      delete ":id/pages/domains/:domain", requirements: { domain: %r{[^/]+} } do
+        authorize! :update_pages, user_project
+
+        status 204
+        pages_domain.destroy
+      end
+    end
+  end
+end
diff --git a/lib/api/services.rb b/lib/api/services.rb
index 2cbd0517dc3..6454e475036 100644
--- a/lib/api/services.rb
+++ b/lib/api/services.rb
@@ -313,13 +313,13 @@ module API
           desc: 'The base URL to the JIRA instance API. Web URL value will be used if not set. E.g., https://jira-api.example.com'
         },
         {
-          required: false,
+          required: true,
           name: :username,
           type: String,
           desc: 'The username of the user created to be used with GitLab/JIRA'
         },
         {
-          required: false,
+          required: true,
           name: :password,
           type: String,
           desc: 'The password of the user created to be used with GitLab/JIRA'
@@ -374,6 +374,26 @@ module API
           desc: 'The Slack token'
         }
       ],
+      'packagist' => [
+        {
+          required: true,
+          name: :username,
+          type: String,
+          desc: 'The username'
+        },
+        {
+          required: true,
+          name: :token,
+          type: String,
+          desc: 'The Packagist API token'
+        },
+        {
+          required: false,
+          name: :server,
+          type: String,
+          desc: 'The server'
+        }
+      ],
       'pipelines-email' => [
         {
           required: true,
@@ -551,6 +571,7 @@ module API
       KubernetesService,
       MattermostSlashCommandsService,
       SlackSlashCommandsService,
+      PackagistService,
       PipelinesEmailService,
       PivotaltrackerService,
       PrometheusService,
diff --git a/lib/api/v3/services.rb b/lib/api/v3/services.rb
index 2d13d6fabfd..44ed94d2869 100644
--- a/lib/api/v3/services.rb
+++ b/lib/api/v3/services.rb
@@ -395,6 +395,26 @@ module API
             desc: 'The Slack token'
           }
         ],
+        'packagist' => [
+          {
+            required: true,
+            name: :username,
+            type: String,
+            desc: 'The username'
+          },
+          {
+            required: true,
+            name: :token,
+            type: String,
+            desc: 'The Packagist API token'
+          },
+          {
+            required: false,
+            name: :server,
+            type: String,
+            desc: 'The server'
+          }
+        ],
         'pipelines-email' => [
           {
             required: true,
diff --git a/lib/gitlab/database.rb b/lib/gitlab/database.rb
index 357f16936c6..43a00d6cedb 100644
--- a/lib/gitlab/database.rb
+++ b/lib/gitlab/database.rb
@@ -4,6 +4,10 @@ module Gitlab
     # https://www.postgresql.org/docs/9.2/static/datatype-numeric.html
     # http://dev.mysql.com/doc/refman/5.7/en/integer-types.html
     MAX_INT_VALUE = 2147483647
+    # The max value between MySQL's TIMESTAMP and PostgreSQL's timestampz:
+    # https://www.postgresql.org/docs/9.1/static/datatype-datetime.html
+    # https://dev.mysql.com/doc/refman/5.7/en/datetime.html
+    MAX_TIMESTAMP_VALUE = Time.at((1 << 31) - 1).freeze
 
     def self.config
       ActiveRecord::Base.configurations[Rails.env]
@@ -120,6 +124,10 @@ module Gitlab
       EOF
     end
 
+    def self.sanitize_timestamp(timestamp)
+      MAX_TIMESTAMP_VALUE > timestamp ? timestamp : MAX_TIMESTAMP_VALUE.dup
+    end
+
     # pool_size - The size of the DB pool.
     # host - An optional host name to use instead of the default one.
     def self.create_connection_pool(pool_size, host = nil)
diff --git a/lib/gitlab/diff/position.rb b/lib/gitlab/diff/position.rb
index bd0a9502a5e..ccfb908bcca 100644
--- a/lib/gitlab/diff/position.rb
+++ b/lib/gitlab/diff/position.rb
@@ -94,7 +94,9 @@ module Gitlab
       end
 
       def diff_file(repository)
-        @diff_file ||= begin
+        return @diff_file if defined?(@diff_file)
+
+        @diff_file = begin
           if RequestStore.active?
             key = {
               project_id: repository.project.id,
@@ -122,8 +124,8 @@ module Gitlab
 
       def find_diff_file(repository)
         return unless diff_refs.complete?
-
-        diff_refs.compare_in(repository.project).diffs(paths: paths, expanded: true).diff_files.first
+        return unless comparison = diff_refs.compare_in(repository.project)
+        comparison.diffs(paths: paths, expanded: true).diff_files.first
       end
 
       def get_formatter_class(type)
diff --git a/lib/gitlab/ee_compat_check.rb b/lib/gitlab/ee_compat_check.rb
index c4c60d1dfee..0ea534a5fd0 100644
--- a/lib/gitlab/ee_compat_check.rb
+++ b/lib/gitlab/ee_compat_check.rb
@@ -2,8 +2,8 @@
 module Gitlab
   # Checks if a set of migrations requires downtime or not.
   class EeCompatCheck
-    DEFAULT_CE_REPO = 'https://gitlab.com/gitlab-org/gitlab-ce.git'.freeze
-    EE_REPO = 'https://gitlab.com/gitlab-org/gitlab-ee.git'.freeze
+    DEFAULT_CE_PROJECT_URL = 'https://gitlab.com/gitlab-org/gitlab-ce'.freeze
+    EE_REPO_URL = 'https://gitlab.com/gitlab-org/gitlab-ee.git'.freeze
     CHECK_DIR = Rails.root.join('ee_compat_check')
     IGNORED_FILES_REGEX = /(VERSION|CHANGELOG\.md:\d+)/.freeze
     PLEASE_READ_THIS_BANNER = %Q{
@@ -17,14 +17,16 @@ module Gitlab
       ============================================================\n
     }.freeze
 
-    attr_reader :ee_repo_dir, :patches_dir, :ce_repo, :ce_branch, :ee_branch_found
-    attr_reader :failed_files
+    attr_reader :ee_repo_dir, :patches_dir, :ce_project_url, :ce_repo_url, :ce_branch, :ee_branch_found
+    attr_reader :job_id, :failed_files
 
-    def initialize(branch:, ce_repo: DEFAULT_CE_REPO)
+    def initialize(branch:, ce_project_url: DEFAULT_CE_PROJECT_URL, job_id: nil)
       @ee_repo_dir = CHECK_DIR.join('ee-repo')
       @patches_dir = CHECK_DIR.join('patches')
       @ce_branch = branch
-      @ce_repo = ce_repo
+      @ce_project_url = ce_project_url
+      @ce_repo_url = "#{ce_project_url}.git"
+      @job_id = job_id
     end
 
     def check
@@ -59,8 +61,8 @@ module Gitlab
         step("#{ee_repo_dir} already exists")
       else
         step(
-          "Cloning #{EE_REPO} into #{ee_repo_dir}",
-          %W[git clone --branch master --single-branch --depth=200 #{EE_REPO} #{ee_repo_dir}]
+          "Cloning #{EE_REPO_URL} into #{ee_repo_dir}",
+          %W[git clone --branch master --single-branch --depth=200 #{EE_REPO_URL} #{ee_repo_dir}]
         )
       end
     end
@@ -132,7 +134,7 @@ module Gitlab
     def check_patch(patch_path)
       step("Checking out master", %w[git checkout master])
       step("Resetting to latest master", %w[git reset --hard origin/master])
-      step("Fetching CE/#{ce_branch}", %W[git fetch #{ce_repo} #{ce_branch}])
+      step("Fetching CE/#{ce_branch}", %W[git fetch #{ce_repo_url} #{ce_branch}])
       step(
         "Checking if #{patch_path} applies cleanly to EE/master",
         # Don't use --check here because it can result in a 0-exit status even
@@ -237,7 +239,7 @@ module Gitlab
     end
 
     def patch_url
-      "https://gitlab.com/gitlab-org/gitlab-ce/-/jobs/#{ENV['CI_JOB_ID']}/artifacts/raw/ee_compat_check/patches/#{ce_patch_name}"
+      "#{ce_project_url}/-/jobs/#{job_id}/artifacts/raw/ee_compat_check/patches/#{ce_patch_name}"
     end
 
     def step(desc, cmd = nil)
@@ -304,7 +306,7 @@ module Gitlab
           # In the EE repo
           $ git fetch origin
           $ git checkout -b #{ee_branch_prefix} origin/master
-          $ git fetch #{ce_repo} #{ce_branch}
+          $ git fetch #{ce_repo_url} #{ce_branch}
           $ git cherry-pick SHA # Repeat for all the commits you want to pick
 
           You can squash the `#{ce_branch}` commits into a single "Port of #{ce_branch} to EE" commit.
diff --git a/lib/gitlab/git/branch.rb b/lib/gitlab/git/branch.rb
index c53882787f1..3487e099381 100644
--- a/lib/gitlab/git/branch.rb
+++ b/lib/gitlab/git/branch.rb
@@ -3,6 +3,14 @@
 module Gitlab
   module Git
     class Branch < Ref
+      def self.find(repo, branch_name)
+        if branch_name.is_a?(Gitlab::Git::Branch)
+          branch_name
+        else
+          repo.find_branch(branch_name)
+        end
+      end
+
       def initialize(repository, name, target, target_commit)
         super(repository, name, target, target_commit)
       end
diff --git a/lib/gitlab/git/commit.rb b/lib/gitlab/git/commit.rb
index 1957c254c28..23ae37ff71e 100644
--- a/lib/gitlab/git/commit.rb
+++ b/lib/gitlab/git/commit.rb
@@ -72,7 +72,8 @@ module Gitlab
 
           decorate(repo, commit) if commit
         rescue Rugged::ReferenceError, Rugged::InvalidError, Rugged::ObjectError,
-               Gitlab::Git::CommandError, Gitlab::Git::Repository::NoRepository
+               Gitlab::Git::CommandError, Gitlab::Git::Repository::NoRepository,
+               Rugged::OdbError, Rugged::TreeError
           nil
         end
 
diff --git a/lib/gitlab/git/hooks_service.rb b/lib/gitlab/git/hooks_service.rb
index c327e9b1616..f302b852b35 100644
--- a/lib/gitlab/git/hooks_service.rb
+++ b/lib/gitlab/git/hooks_service.rb
@@ -8,7 +8,7 @@ module Gitlab
       def execute(pusher, repository, oldrev, newrev, ref)
         @repository  = repository
         @gl_id       = pusher.gl_id
-        @gl_username = pusher.name
+        @gl_username = pusher.username
         @oldrev      = oldrev
         @newrev      = newrev
         @ref         = ref
diff --git a/lib/gitlab/git/repository.rb b/lib/gitlab/git/repository.rb
index 59a54b48ed9..fc8af38d4d9 100644
--- a/lib/gitlab/git/repository.rb
+++ b/lib/gitlab/git/repository.rb
@@ -166,7 +166,7 @@ module Gitlab
       end
 
       def local_branches(sort_by: nil)
-        gitaly_migrate(:local_branches) do |is_enabled|
+        gitaly_migrate(:local_branches, status: Gitlab::GitalyClient::MigrationStatus::OPT_OUT) do |is_enabled|
           if is_enabled
             gitaly_ref_client.local_branches(sort_by: sort_by)
           else
@@ -511,6 +511,10 @@ module Gitlab
         gitaly_commit_client.ancestor?(from, to)
       end
 
+      def merged_branch_names(branch_names = [])
+        Set.new(git_merged_branch_names(branch_names))
+      end
+
       # Return an array of Diff objects that represent the diff
       # between +from+ and +to+.  See Diff::filter_diff_options for the allowed
       # diff options.  The +options+ hash can also include :break_rewrites to
@@ -745,6 +749,16 @@ module Gitlab
         nil
       end
 
+      def ff_merge(user, source_sha, target_branch)
+        OperationService.new(user, self).with_branch(target_branch) do |our_commit|
+          raise ArgumentError, 'Invalid merge target' unless our_commit
+
+          source_sha
+        end
+      rescue Rugged::ReferenceError
+        raise ArgumentError, 'Invalid merge source'
+      end
+
       def revert(user:, commit:, branch_name:, message:, start_branch_name:, start_repository:)
         OperationService.new(user, self).with_branch(
           branch_name,
@@ -1180,6 +1194,13 @@ module Gitlab
         sort_branches(branches, sort_by)
       end
 
+      def git_merged_branch_names(branch_names = [])
+        lines = run_git(['branch', '--merged', root_ref] + branch_names)
+          .first.lines
+
+        lines.map(&:strip)
+      end
+
       def log_using_shell?(options)
         options[:path].present? ||
           options[:disable_walk] ||
diff --git a/lib/gitlab/git/storage.rb b/lib/gitlab/git/storage.rb
index 08e6c29abad..99518c9b1e4 100644
--- a/lib/gitlab/git/storage.rb
+++ b/lib/gitlab/git/storage.rb
@@ -12,6 +12,7 @@ module Gitlab
 
       CircuitOpen = Class.new(Inaccessible)
       Misconfiguration = Class.new(Inaccessible)
+      Failing = Class.new(Inaccessible)
 
       REDIS_KEY_PREFIX = 'storage_accessible:'.freeze
 
diff --git a/lib/gitlab/git/storage/circuit_breaker.rb b/lib/gitlab/git/storage/circuit_breaker.rb
index 0456ad9a1f3..be7598ef011 100644
--- a/lib/gitlab/git/storage/circuit_breaker.rb
+++ b/lib/gitlab/git/storage/circuit_breaker.rb
@@ -54,7 +54,7 @@ module Gitlab
         end
 
         def perform
-          return yield unless Feature.enabled?('git_storage_circuit_breaker')
+          return yield unless enabled?
 
           check_storage_accessible!
 
@@ -64,10 +64,27 @@ module Gitlab
         def circuit_broken?
           return false if no_failures?
 
+          failure_count > failure_count_threshold
+        end
+
+        def backing_off?
+          return false if no_failures?
+
           recent_failure = last_failure > failure_wait_time.seconds.ago
-          too_many_failures = failure_count > failure_count_threshold
+          too_many_failures = failure_count > backoff_threshold
 
-          recent_failure || too_many_failures
+          recent_failure && too_many_failures
+        end
+
+        private
+
+        # The circuitbreaker can be enabled for the entire fleet using a Feature
+        # flag.
+        #
+        # Enabling it for a single host can be done setting the
+        # `GIT_STORAGE_CIRCUIT_BREAKER` environment variable.
+        def enabled?
+          ENV['GIT_STORAGE_CIRCUIT_BREAKER'].present? || Feature.enabled?('git_storage_circuit_breaker')
         end
 
         def failure_info
@@ -83,7 +100,7 @@ module Gitlab
           return @storage_available if @storage_available
 
           if @storage_available = Gitlab::Git::Storage::ForkedStorageCheck
-                                    .storage_available?(storage_path, storage_timeout)
+                                    .storage_available?(storage_path, storage_timeout, access_retries)
             track_storage_accessible
           else
             track_storage_inaccessible
@@ -94,7 +111,11 @@ module Gitlab
 
         def check_storage_accessible!
           if circuit_broken?
-            raise Gitlab::Git::Storage::CircuitOpen.new("Circuit for #{storage} is broken", failure_wait_time)
+            raise Gitlab::Git::Storage::CircuitOpen.new("Circuit for #{storage} is broken", failure_reset_time)
+          end
+
+          if backing_off?
+            raise Gitlab::Git::Storage::Failing.new("Backing off access to #{storage}", failure_wait_time)
           end
 
           unless storage_available?
@@ -131,12 +152,6 @@ module Gitlab
           end
         end
 
-        def cache_key
-          @cache_key ||= "#{Gitlab::Git::Storage::REDIS_KEY_PREFIX}#{storage}:#{hostname}"
-        end
-
-        private
-
         def get_failure_info
           last_failure, failure_count = Gitlab::Git::Storage.redis.with do |redis|
             redis.hmget(cache_key, :last_failure, :failure_count)
@@ -146,6 +161,10 @@ module Gitlab
 
           FailureInfo.new(last_failure, failure_count.to_i)
         end
+
+        def cache_key
+          @cache_key ||= "#{Gitlab::Git::Storage::REDIS_KEY_PREFIX}#{storage}:#{hostname}"
+        end
       end
     end
   end
diff --git a/lib/gitlab/git/storage/circuit_breaker_settings.rb b/lib/gitlab/git/storage/circuit_breaker_settings.rb
index d2313fe7c1b..257fe8cd8f0 100644
--- a/lib/gitlab/git/storage/circuit_breaker_settings.rb
+++ b/lib/gitlab/git/storage/circuit_breaker_settings.rb
@@ -18,6 +18,14 @@ module Gitlab
           application_settings.circuitbreaker_storage_timeout
         end
 
+        def access_retries
+          application_settings.circuitbreaker_access_retries
+        end
+
+        def backoff_threshold
+          application_settings.circuitbreaker_backoff_threshold
+        end
+
         private
 
         def application_settings
diff --git a/lib/gitlab/git/storage/forked_storage_check.rb b/lib/gitlab/git/storage/forked_storage_check.rb
index 91d8241f17b..1307f400700 100644
--- a/lib/gitlab/git/storage/forked_storage_check.rb
+++ b/lib/gitlab/git/storage/forked_storage_check.rb
@@ -4,8 +4,17 @@ module Gitlab
       module ForkedStorageCheck
         extend self
 
-        def storage_available?(path, timeout_seconds = 5)
-          status = timeout_check(path, timeout_seconds)
+        def storage_available?(path, timeout_seconds = 5, retries = 1)
+          partial_timeout = timeout_seconds / retries
+          status = timeout_check(path, partial_timeout)
+
+          # If the status check did not succeed the first time, we retry a few
+          # more times to avoid one-off failures
+          current_attempts = 1
+          while current_attempts < retries && !status.success?
+            status = timeout_check(path, partial_timeout)
+            current_attempts += 1
+          end
 
           status.success?
         end
diff --git a/lib/gitlab/git/storage/null_circuit_breaker.rb b/lib/gitlab/git/storage/null_circuit_breaker.rb
index 60c6791a7e4..a12d52d295f 100644
--- a/lib/gitlab/git/storage/null_circuit_breaker.rb
+++ b/lib/gitlab/git/storage/null_circuit_breaker.rb
@@ -25,6 +25,10 @@ module Gitlab
           !!@error
         end
 
+        def backing_off?
+          false
+        end
+
         def last_failure
           circuit_broken? ? Time.now : nil
         end
diff --git a/lib/gitlab/git/user.rb b/lib/gitlab/git/user.rb
index da74719ae87..e6b61417de1 100644
--- a/lib/gitlab/git/user.rb
+++ b/lib/gitlab/git/user.rb
@@ -7,9 +7,8 @@ module Gitlab
         new(gitlab_user.username, gitlab_user.name, gitlab_user.email, Gitlab::GlId.gl_id(gitlab_user))
       end
 
-      # TODO support the username field in Gitaly https://gitlab.com/gitlab-org/gitaly/issues/628
       def self.from_gitaly(gitaly_user)
-        new('', gitaly_user.name, gitaly_user.email, gitaly_user.gl_id)
+        new(gitaly_user.gl_username, gitaly_user.name, gitaly_user.email, gitaly_user.gl_id)
       end
 
       def initialize(username, name, email, gl_id)
@@ -22,6 +21,10 @@ module Gitlab
       def ==(other)
         [username, name, email, gl_id] == [other.username, other.name, other.email, other.gl_id]
       end
+
+      def to_gitaly
+        Gitaly::User.new(gl_username: username, gl_id: gl_id, name: name, email: email)
+      end
     end
   end
 end
diff --git a/lib/gitlab/git/wiki.rb b/lib/gitlab/git/wiki.rb
index e7b2f52a552..45362ac438b 100644
--- a/lib/gitlab/git/wiki.rb
+++ b/lib/gitlab/git/wiki.rb
@@ -8,6 +8,7 @@ module Gitlab
           { name: name, email: email, message: message }
         end
       end
+      PageBlob = Struct.new(:name)
 
       def self.default_ref
         'master'
@@ -34,10 +35,14 @@ module Gitlab
       end
 
       def delete_page(page_path, commit_details)
-        assert_type!(commit_details, CommitDetails)
-
-        gollum_wiki.delete_page(gollum_page_by_path(page_path), commit_details.to_h)
-        nil
+        @repository.gitaly_migrate(:wiki_delete_page) do |is_enabled|
+          if is_enabled
+            gitaly_delete_page(page_path, commit_details)
+            gollum_wiki.clear_cache
+          else
+            gollum_delete_page(page_path, commit_details)
+          end
+        end
       end
 
       def update_page(page_path, title, format, content, commit_details)
@@ -53,22 +58,23 @@ module Gitlab
       end
 
       def page(title:, version: nil, dir: nil)
-        if version
-          version = Gitlab::Git::Commit.find(@repository, version).id
+        @repository.gitaly_migrate(:wiki_find_page) do |is_enabled|
+          if is_enabled
+            gitaly_find_page(title: title, version: version, dir: dir)
+          else
+            gollum_find_page(title: title, version: version, dir: dir)
+          end
         end
-
-        gollum_page = gollum_wiki.page(title, version, dir)
-        return unless gollum_page
-
-        new_page(gollum_page)
       end
 
       def file(name, version)
-        version ||= self.class.default_ref
-        gollum_file = gollum_wiki.file(name, version)
-        return unless gollum_file
-
-        Gitlab::Git::WikiFile.new(gollum_file)
+        @repository.gitaly_migrate(:wiki_find_file) do |is_enabled|
+          if is_enabled
+            gitaly_find_file(name, version)
+          else
+            gollum_find_file(name, version)
+          end
+        end
       end
 
       def page_versions(page_path)
@@ -80,7 +86,15 @@ module Gitlab
       end
 
       def preview_slug(title, format)
-        gollum_wiki.preview_page(title, '', format).url_path
+        # Adapted from gollum gem (Gollum::Wiki#preview_page) to avoid
+        # using Rugged through a Gollum::Wiki instance
+        page_class = Gollum::Page
+        page = page_class.new(nil)
+        ext = page_class.format_to_ext(format.to_sym)
+        name = page_class.cname(title) + '.' + ext
+        blob = PageBlob.new(name)
+        page.populate(blob)
+        page.url_path
       end
 
       private
@@ -126,9 +140,53 @@ module Gitlab
         raise Gitlab::Git::Wiki::DuplicatePageError, e.message
       end
 
+      def gollum_delete_page(page_path, commit_details)
+        assert_type!(commit_details, CommitDetails)
+
+        gollum_wiki.delete_page(gollum_page_by_path(page_path), 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
+        end
+
+        gollum_page = gollum_wiki.page(title, version, dir)
+        return unless gollum_page
+
+        new_page(gollum_page)
+      end
+
+      def gollum_find_file(name, version)
+        version ||= self.class.default_ref
+        gollum_file = gollum_wiki.file(name, version)
+        return unless gollum_file
+
+        Gitlab::Git::WikiFile.new(gollum_file)
+      end
+
       def gitaly_write_page(name, format, content, commit_details)
         gitaly_wiki_client.write_page(name, format, content, commit_details)
       end
+
+      def gitaly_delete_page(page_path, commit_details)
+        gitaly_wiki_client.delete_page(page_path, commit_details)
+      end
+
+      def gitaly_find_page(title:, version: nil, dir: nil)
+        wiki_page, version = gitaly_wiki_client.find_page(title: title, version: version, dir: dir)
+        return unless wiki_page
+
+        Gitlab::Git::WikiPage.new(wiki_page, version)
+      end
+
+      def gitaly_find_file(name, version)
+        wiki_file = gitaly_wiki_client.find_file(name, version)
+        return unless wiki_file
+
+        Gitlab::Git::WikiFile.new(wiki_file)
+      end
     end
   end
 end
diff --git a/lib/gitlab/git/wiki_file.rb b/lib/gitlab/git/wiki_file.rb
index 527f2a44dea..84335aca4bc 100644
--- a/lib/gitlab/git/wiki_file.rb
+++ b/lib/gitlab/git/wiki_file.rb
@@ -1,7 +1,7 @@
 module Gitlab
   module Git
     class WikiFile
-      attr_reader :mime_type, :raw_data, :name
+      attr_reader :mime_type, :raw_data, :name, :path
 
       # This class is meant to be serializable so that it can be constructed
       # by Gitaly and sent over the network to GitLab.
@@ -13,6 +13,7 @@ module Gitlab
         @mime_type = gollum_file.mime_type
         @raw_data = gollum_file.raw_data
         @name = gollum_file.name
+        @path = gollum_file.path
       end
     end
   end
diff --git a/lib/gitlab/git_access.rb b/lib/gitlab/git_access.rb
index 42b59c106e2..8998c4b1a83 100644
--- a/lib/gitlab/git_access.rb
+++ b/lib/gitlab/git_access.rb
@@ -215,10 +215,6 @@ module Gitlab
       ).exec
     end
 
-    def matching_merge_request?(newrev, branch_name)
-      Checks::MatchingMergeRequest.new(newrev, branch_name, project).match?
-    end
-
     def deploy_key
       actor if deploy_key?
     end
diff --git a/lib/gitlab/gitaly_client/operation_service.rb b/lib/gitlab/gitaly_client/operation_service.rb
index 91f34011f6e..adaf255f24b 100644
--- a/lib/gitlab/gitaly_client/operation_service.rb
+++ b/lib/gitlab/gitaly_client/operation_service.rb
@@ -10,7 +10,7 @@ module Gitlab
         request = Gitaly::UserDeleteTagRequest.new(
           repository: @gitaly_repo,
           tag_name: GitalyClient.encode(tag_name),
-          user: Util.gitaly_user(user)
+          user: Gitlab::Git::User.from_gitlab(user).to_gitaly
         )
 
         response = GitalyClient.call(@repository.storage, :operation_service, :user_delete_tag, request)
@@ -23,7 +23,7 @@ module Gitlab
       def add_tag(tag_name, user, target, message)
         request = Gitaly::UserCreateTagRequest.new(
           repository: @gitaly_repo,
-          user: Util.gitaly_user(user),
+          user: Gitlab::Git::User.from_gitlab(user).to_gitaly,
           tag_name: GitalyClient.encode(tag_name),
           target_revision: GitalyClient.encode(target),
           message: GitalyClient.encode(message.to_s)
@@ -45,7 +45,7 @@ module Gitlab
         request = Gitaly::UserCreateBranchRequest.new(
           repository: @gitaly_repo,
           branch_name: GitalyClient.encode(branch_name),
-          user: Util.gitaly_user(user),
+          user: Gitlab::Git::User.from_gitlab(user).to_gitaly,
           start_point: GitalyClient.encode(start_point)
         )
         response = GitalyClient.call(@repository.storage, :operation_service,
@@ -65,7 +65,7 @@ module Gitlab
         request = Gitaly::UserDeleteBranchRequest.new(
           repository: @gitaly_repo,
           branch_name: GitalyClient.encode(branch_name),
-          user: Util.gitaly_user(user)
+          user: Gitlab::Git::User.from_gitlab(user).to_gitaly
         )
 
         response = GitalyClient.call(@repository.storage, :operation_service, :user_delete_branch, request)
@@ -87,7 +87,7 @@ module Gitlab
         request_enum.push(
           Gitaly::UserMergeBranchRequest.new(
             repository: @gitaly_repo,
-            user: Util.gitaly_user(user),
+            user: Gitlab::Git::User.from_gitlab(user).to_gitaly,
             commit_id: source_sha,
             branch: GitalyClient.encode(target_branch),
             message: GitalyClient.encode(message)
diff --git a/lib/gitlab/gitaly_client/util.rb b/lib/gitlab/gitaly_client/util.rb
index a1222a7e718..b1a033280b4 100644
--- a/lib/gitlab/gitaly_client/util.rb
+++ b/lib/gitlab/gitaly_client/util.rb
@@ -18,16 +18,6 @@ module Gitlab
           )
         end
 
-        def gitaly_user(gitlab_user)
-          return unless gitlab_user
-
-          Gitaly::User.new(
-            gl_id: Gitlab::GlId.gl_id(gitlab_user),
-            name: GitalyClient.encode(gitlab_user.name),
-            email: GitalyClient.encode(gitlab_user.email)
-          )
-        end
-
         def gitlab_tag_from_gitaly_tag(repository, gitaly_tag)
           if gitaly_tag.target_commit.present?
             commit = Gitlab::Git::Commit.decorate(repository, gitaly_tag.target_commit)
diff --git a/lib/gitlab/gitaly_client/wiki_file.rb b/lib/gitlab/gitaly_client/wiki_file.rb
new file mode 100644
index 00000000000..a2e415864e6
--- /dev/null
+++ b/lib/gitlab/gitaly_client/wiki_file.rb
@@ -0,0 +1,17 @@
+module Gitlab
+  module GitalyClient
+    class WikiFile
+      FIELDS = %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
+    end
+  end
+end
diff --git a/lib/gitlab/gitaly_client/wiki_page.rb b/lib/gitlab/gitaly_client/wiki_page.rb
new file mode 100644
index 00000000000..8226278d5f6
--- /dev/null
+++ b/lib/gitlab/gitaly_client/wiki_page.rb
@@ -0,0 +1,25 @@
+module Gitlab
+  module GitalyClient
+    class WikiPage
+      FIELDS = %i(title format url_path path name historical 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
+
+      def historical?
+        @historical
+      end
+
+      def format
+        @format.to_sym
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/gitaly_client/wiki_service.rb b/lib/gitlab/gitaly_client/wiki_service.rb
index 03afcce81f0..15f0f30d303 100644
--- a/lib/gitlab/gitaly_client/wiki_service.rb
+++ b/lib/gitlab/gitaly_client/wiki_service.rb
@@ -15,11 +15,7 @@ module Gitlab
           repository: @gitaly_repo,
           name: GitalyClient.encode(name),
           format: format.to_s,
-          commit_details: Gitaly::WikiCommitDetails.new(
-            name: GitalyClient.encode(commit_details.name),
-            email: GitalyClient.encode(commit_details.email),
-            message: GitalyClient.encode(commit_details.message)
-          )
+          commit_details: gitaly_commit_details(commit_details)
         )
 
         strio = StringIO.new(content)
@@ -40,6 +36,85 @@ module Gitlab
           raise Gitlab::Git::Wiki::DuplicatePageError, error
         end
       end
+
+      def delete_page(page_path, commit_details)
+        request = Gitaly::WikiDeletePageRequest.new(
+          repository: @gitaly_repo,
+          page_path: GitalyClient.encode(page_path),
+          commit_details: gitaly_commit_details(commit_details)
+        )
+
+        GitalyClient.call(@repository.storage, :wiki_service, :wiki_delete_page, request)
+      end
+
+      def find_page(title:, version: nil, dir: nil)
+        request = Gitaly::WikiFindPageRequest.new(
+          repository: @gitaly_repo,
+          title: GitalyClient.encode(title),
+          revision: GitalyClient.encode(version),
+          directory: GitalyClient.encode(dir)
+        )
+
+        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
+
+          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
+
+            version = Gitlab::Git::WikiPageVersion.new(
+              Gitlab::Git::Commit.decorate(@repository, page.version.commit),
+              page.version.format
+            )
+          end
+        end
+
+        [wiki_page, version]
+      end
+
+      def find_file(name, revision)
+        request = Gitaly::WikiFindFileRequest.new(
+          repository: @gitaly_repo,
+          name: GitalyClient.encode(name),
+          revision: GitalyClient.encode(revision)
+        )
+
+        response = GitalyClient.call(@repository.storage, :wiki_service, :wiki_find_file, request)
+        wiki_file = nil
+
+        response.each do |message|
+          next unless message.name.present?
+
+          if wiki_file
+            wiki_file.raw_data << message.raw_data
+          else
+            wiki_file = GitalyClient::WikiFile.new(message.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_file.raw_data = wiki_file.raw_data.dup
+          end
+        end
+
+        wiki_file
+      end
+
+      private
+
+      def gitaly_commit_details(commit_details)
+        Gitaly::WikiCommitDetails.new(
+          name: GitalyClient.encode(commit_details.name),
+          email: GitalyClient.encode(commit_details.email),
+          message: GitalyClient.encode(commit_details.message)
+        )
+      end
     end
   end
 end
diff --git a/lib/gitlab/import_export/import_export.yml b/lib/gitlab/import_export/import_export.yml
index dec8b4c5acd..e68761066d8 100644
--- a/lib/gitlab/import_export/import_export.yml
+++ b/lib/gitlab/import_export/import_export.yml
@@ -19,6 +19,7 @@ project_tree:
     - milestone:
       - events:
         - :push_event_payload
+    - :issue_assignees
   - snippets:
     - :award_emoji
     - notes:
diff --git a/lib/gitlab/ldap/auth_hash.rb b/lib/gitlab/ldap/auth_hash.rb
index 3123da17fd9..1bd0965679a 100644
--- a/lib/gitlab/ldap/auth_hash.rb
+++ b/lib/gitlab/ldap/auth_hash.rb
@@ -4,7 +4,7 @@ module Gitlab
   module LDAP
     class AuthHash < Gitlab::OAuth::AuthHash
       def uid
-        Gitlab::LDAP::Person.normalize_dn(super)
+        @uid ||= Gitlab::LDAP::Person.normalize_dn(super)
       end
 
       private
diff --git a/lib/gitlab/ldap/user.rb b/lib/gitlab/ldap/user.rb
index 1793097363e..4d5c67ed892 100644
--- a/lib/gitlab/ldap/user.rb
+++ b/lib/gitlab/ldap/user.rb
@@ -9,10 +9,11 @@ module Gitlab
     class User < Gitlab::OAuth::User
       class << self
         def find_by_uid_and_provider(uid, provider)
-          # LDAP distinguished name is case-insensitive
+          uid = Gitlab::LDAP::Person.normalize_dn(uid)
+
           identity = ::Identity
             .where(provider: provider)
-            .iwhere(extern_uid: uid).last
+            .where(extern_uid: uid).last
           identity && identity.user
         end
       end
diff --git a/lib/gitlab/logger.rb b/lib/gitlab/logger.rb
index 6bffd410ed0..a42e312b5d3 100644
--- a/lib/gitlab/logger.rb
+++ b/lib/gitlab/logger.rb
@@ -13,7 +13,7 @@ module Gitlab
     end
 
     def self.read_latest
-      path = Rails.root.join("log", file_name)
+      path = self.full_log_path
 
       return [] unless File.readable?(path)
 
@@ -22,7 +22,15 @@ module Gitlab
     end
 
     def self.build
-      new(Rails.root.join("log", file_name))
+      RequestStore[self.cache_key] ||= new(self.full_log_path)
+    end
+
+    def self.full_log_path
+      Rails.root.join("log", file_name)
+    end
+
+    def self.cache_key
+      'logger:'.freeze + self.full_log_path.to_s
     end
   end
 end
diff --git a/lib/gitlab/metrics/sidekiq_middleware.rb b/lib/gitlab/metrics/sidekiq_middleware.rb
index f9dd8e41912..b983a40611f 100644
--- a/lib/gitlab/metrics/sidekiq_middleware.rb
+++ b/lib/gitlab/metrics/sidekiq_middleware.rb
@@ -11,6 +11,8 @@ module Gitlab
           # 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/middleware/go.rb b/lib/gitlab/middleware/go.rb
index f42168c720e..cfc6b2a2029 100644
--- a/lib/gitlab/middleware/go.rb
+++ b/lib/gitlab/middleware/go.rb
@@ -4,6 +4,7 @@ module Gitlab
   module Middleware
     class Go
       include ActionView::Helpers::TagHelper
+      include Gitlab::CurrentSettings
 
       PROJECT_PATH_REGEX = %r{\A(#{Gitlab::PathRegex.full_namespace_route_regex}/#{Gitlab::PathRegex.project_route_regex})/}.freeze
 
@@ -37,10 +38,20 @@ module Gitlab
       end
 
       def go_body(path)
-        project_url = URI.join(Gitlab.config.gitlab.url, path)
+        config = Gitlab.config
+        project_url = URI.join(config.gitlab.url, path)
         import_prefix = strip_url(project_url.to_s)
 
-        meta_tag = tag :meta, name: 'go-import', content: "#{import_prefix} git #{project_url}.git"
+        repository_url = case current_application_settings.enabled_git_access_protocol
+                         when 'ssh'
+                           shell = config.gitlab_shell
+                           port = ":#{shell.ssh_port}" unless shell.ssh_port == 22
+                           "ssh://#{shell.ssh_user}@#{shell.ssh_host}#{port}/#{path}.git"
+                         when 'http', nil
+                           "#{project_url}.git"
+                         end
+
+        meta_tag = tag :meta, name: 'go-import', content: "#{import_prefix} git #{repository_url}"
         head_tag = content_tag :head, meta_tag
         content_tag :html, head_tag
       end
diff --git a/lib/gitlab/performance_bar/peek_query_tracker.rb b/lib/gitlab/performance_bar/peek_query_tracker.rb
index 67fee8c227d..69e117f1da9 100644
--- a/lib/gitlab/performance_bar/peek_query_tracker.rb
+++ b/lib/gitlab/performance_bar/peek_query_tracker.rb
@@ -36,8 +36,8 @@ module Gitlab
       end
 
       def track_query(raw_query, bindings, start, finish)
-        query = Gitlab::Sherlock::Query.new(raw_query, start, finish)
-        query_info = { duration: query.duration.round(3), sql: query.formatted_query }
+        duration = finish - start
+        query_info = { duration: duration.round(3), sql: raw_query }
 
         PEEK_DB_CLIENT.query_details << query_info
       end
diff --git a/lib/gitlab/workhorse.rb b/lib/gitlab/workhorse.rb
index 58d5b0da1c4..e1219df1b25 100644
--- a/lib/gitlab/workhorse.rb
+++ b/lib/gitlab/workhorse.rb
@@ -16,14 +16,15 @@ module Gitlab
     SECRET_LENGTH = 32
 
     class << self
-      def git_http_ok(repository, is_wiki, user, action)
+      def git_http_ok(repository, is_wiki, user, action, show_all_refs: false)
         project = repository.project
         repo_path = repository.path_to_repo
         params = {
           GL_ID: Gitlab::GlId.gl_id(user),
           GL_REPOSITORY: Gitlab::GlRepository.gl_repository(project, is_wiki),
           GL_USERNAME: user&.username,
-          RepoPath: repo_path
+          RepoPath: repo_path,
+          ShowAllRefs: show_all_refs
         }
         server = {
           address: Gitlab::GitalyClient.address(project.repository_storage),
diff --git a/lib/omni_auth/strategies/bitbucket.rb b/lib/omni_auth/strategies/bitbucket.rb
index 5a7d67c2390..ce1bdfe6ee4 100644
--- a/lib/omni_auth/strategies/bitbucket.rb
+++ b/lib/omni_auth/strategies/bitbucket.rb
@@ -36,6 +36,10 @@ module OmniAuth
         email_response = access_token.get('api/2.0/user/emails').parsed
         @emails ||= email_response && email_response['values'] || nil
       end
+
+      def callback_url
+        options[:redirect_uri] || (full_host + script_name + callback_path)
+      end
     end
   end
 end
diff --git a/lib/system_check/app/ruby_version_check.rb b/lib/system_check/app/ruby_version_check.rb
index 08a2c495bd4..57bbabece1f 100644
--- a/lib/system_check/app/ruby_version_check.rb
+++ b/lib/system_check/app/ruby_version_check.rb
@@ -5,7 +5,7 @@ module SystemCheck
       set_check_pass -> { "yes (#{self.current_version})" }
 
       def self.required_version
-        @required_version ||= Gitlab::VersionInfo.new(2, 3, 3)
+        @required_version ||= Gitlab::VersionInfo.new(2, 3, 5)
       end
 
       def self.current_version
diff --git a/lib/tasks/gitlab/dev.rake b/lib/tasks/gitlab/dev.rake
index 930b4bc13e2..ba221e44e5d 100644
--- a/lib/tasks/gitlab/dev.rake
+++ b/lib/tasks/gitlab/dev.rake
@@ -5,10 +5,9 @@ namespace :gitlab do
       opts =
         if ENV['CI']
           {
-            # We don't use CI_REPOSITORY_URL since it includes `gitlab-ci-token:xxxxxxxxxxxxxxxxxxxx@`
-            # which is confusing in the steps suggested in the job's output.
-            ce_repo: "#{ENV['CI_PROJECT_URL']}.git",
-            branch: ENV['CI_COMMIT_REF_NAME']
+            ce_project_url: ENV['CI_PROJECT_URL'],
+            branch: ENV['CI_COMMIT_REF_NAME'],
+            job_id: ENV['CI_JOB_ID']
           }
         else
           unless args[:branch]
diff --git a/locale/gitlab.pot b/locale/gitlab.pot
index 1f356a231b0..08f6212d997 100644
--- a/locale/gitlab.pot
+++ b/locale/gitlab.pot
@@ -8,8 +8,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: gitlab 1.0.0\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2017-10-10 17:50+0200\n"
-"PO-Revision-Date: 2017-10-10 17:50+0200\n"
+"POT-Creation-Date: 2017-10-22 16:40+0300\n"
+"PO-Revision-Date: 2017-10-22 16:40+0300\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
 "Language: \n"
@@ -106,6 +106,12 @@ msgstr ""
 msgid "Add new directory"
 msgstr ""
 
+msgid "AdminHealthPageLink|health page"
+msgstr ""
+
+msgid "Advanced settings"
+msgstr ""
+
 msgid "All"
 msgstr ""
 
@@ -127,6 +133,9 @@ msgstr ""
 msgid "Are you sure you want to discard your changes?"
 msgstr ""
 
+msgid "Are you sure you want to leave this group?"
+msgstr ""
+
 msgid "Are you sure you want to reset registration token?"
 msgstr ""
 
@@ -160,18 +169,21 @@ msgstr ""
 msgid "AutoDevOps|Auto DevOps (Beta)"
 msgstr ""
 
-msgid "AutoDevOps|Auto DevOps can be activated for this project. It will automatically build, test, and deploy your application based on a predefined CI/CD configuration."
-msgstr ""
-
 msgid "AutoDevOps|Auto DevOps documentation"
 msgstr ""
 
 msgid "AutoDevOps|Enable in settings"
 msgstr ""
 
+msgid "AutoDevOps|It will automatically build, test, and deploy your application based on a predefined CI/CD configuration."
+msgstr ""
+
 msgid "AutoDevOps|Learn more in the %{link_to_documentation}"
 msgstr ""
 
+msgid "AutoDevOps|You can activate %{link_to_settings} for this project."
+msgstr ""
+
 msgid "Branch"
 msgid_plural "Branches"
 msgstr[0] ""
@@ -180,6 +192,9 @@ msgstr[1] ""
 msgid "Branch <strong>%{branch_name}</strong> was created. To set up auto deploy, choose a GitLab CI Yaml template and commit your changes. %{link_to_autodeploy_doc}"
 msgstr ""
 
+msgid "Branch has changed"
+msgstr ""
+
 msgid "BranchSwitcherPlaceholder|Search branches"
 msgstr ""
 
@@ -375,6 +390,9 @@ msgstr ""
 msgid "CiStatus|running"
 msgstr ""
 
+msgid "CircuitBreakerApiLink|circuitbreaker api"
+msgstr ""
+
 msgid "Clone repository"
 msgstr ""
 
@@ -384,6 +402,9 @@ msgstr ""
 msgid "ClusterIntegration|A %{link_to_container_project} must have been created under this account"
 msgstr ""
 
+msgid "ClusterIntegration|Cluster details"
+msgstr ""
+
 msgid "ClusterIntegration|Cluster integration"
 msgstr ""
 
@@ -435,6 +456,9 @@ msgstr ""
 msgid "ClusterIntegration|Make sure your account %{link_to_requirements} to create clusters"
 msgstr ""
 
+msgid "ClusterIntegration|Manage Cluster integration on your GitLab project"
+msgstr ""
+
 msgid "ClusterIntegration|Manage your cluster by visiting %{link_gke}"
 msgstr ""
 
@@ -459,7 +483,7 @@ msgstr ""
 msgid "ClusterIntegration|Removing cluster integration will remove the cluster configuration you have added to this project. It will not delete your project."
 msgstr ""
 
-msgid "ClusterIntegration|Save"
+msgid "ClusterIntegration|See and edit the details for your cluster"
 msgstr ""
 
 msgid "ClusterIntegration|See machine types"
@@ -614,6 +638,9 @@ msgstr ""
 msgid "Create merge request"
 msgstr ""
 
+msgid "Create new branch"
+msgstr ""
+
 msgid "Create new..."
 msgstr ""
 
@@ -1021,6 +1048,9 @@ msgstr ""
 msgid "Login"
 msgstr ""
 
+msgid "Maximum git storage failures"
+msgstr ""
+
 msgid "Median"
 msgstr ""
 
@@ -1347,6 +1377,9 @@ msgstr ""
 msgid "Profiles|your account"
 msgstr ""
 
+msgid "Project '%{project_name}' is in the process of being deleted."
+msgstr ""
+
 msgid "Project '%{project_name}' queued for deletion."
 msgstr ""
 
@@ -1356,9 +1389,6 @@ msgstr ""
 msgid "Project '%{project_name}' was successfully updated."
 msgstr ""
 
-msgid "Project '%{project_name}' will be deleted."
-msgstr ""
-
 msgid "Project access must be granted explicitly to each user."
 msgstr ""
 
@@ -1494,6 +1524,9 @@ msgstr ""
 msgid "SSH Keys"
 msgstr ""
 
+msgid "Save"
+msgstr ""
+
 msgid "Save changes"
 msgstr ""
 
@@ -1512,6 +1545,15 @@ msgstr ""
 msgid "Search branches and tags"
 msgstr ""
 
+msgid "Seconds before reseting failure information"
+msgstr ""
+
+msgid "Seconds to wait after a storage failure"
+msgstr ""
+
+msgid "Seconds to wait for a storage access attempt"
+msgstr ""
+
 msgid "Select Archive Format"
 msgstr ""
 
@@ -1714,6 +1756,9 @@ msgstr ""
 msgid "The issue stage shows the time it takes from creating an issue to assigning the issue to a milestone, or add the issue to a list on your Issue Board. Begin creating issues to see data for this stage."
 msgstr ""
 
+msgid "The number of failures of after which GitLab will completely prevent access to the storage. The number of failures can be reset in the admin interface: %{link_to_health_page} or using the %{api_documentation_link}."
+msgstr ""
+
 msgid "The phase of the development lifecycle."
 msgstr ""
 
@@ -1744,6 +1789,12 @@ msgstr ""
 msgid "The testing stage shows the time GitLab CI takes to run every pipeline for the related merge request. The data will automatically be added after your first pipeline finishes running."
 msgstr ""
 
+msgid "The time in seconds GitLab will keep failure information. When no failures occur during this time, information about the mount is reset."
+msgstr ""
+
+msgid "The time in seconds GitLab will try to access storage. After this time a timeout error will be raised."
+msgstr ""
+
 msgid "The time taken by each data entry gathered by that stage."
 msgstr ""
 
@@ -1753,6 +1804,9 @@ msgstr ""
 msgid "There are problems accessing Git storage: "
 msgstr ""
 
+msgid "This branch has changed since you started editing. Would you like to create a new branch?"
+msgstr ""
+
 msgid "This is a confidential issue."
 msgstr ""
 
@@ -1976,6 +2030,9 @@ msgstr ""
 msgid "We don't have enough data to show this stage."
 msgstr ""
 
+msgid "When access to a storage fails. GitLab will prevent access to the storage for the time specified here. This allows the filesystem to recover. Repositories on failing shards are temporarly unavailable"
+msgstr ""
+
 msgid "Wiki"
 msgstr ""
 
diff --git a/package.json b/package.json
index 057cd8f7bc7..0a1f5c8d081 100644
--- a/package.json
+++ b/package.json
@@ -13,6 +13,7 @@
     "webpack-prod": "NODE_ENV=production webpack --config config/webpack.config.js"
   },
   "dependencies": {
+    "autosize": "^4.0.0",
     "axios": "^0.16.2",
     "babel-core": "^6.22.1",
     "babel-eslint": "^7.2.1",
@@ -35,6 +36,7 @@
     "eslint-plugin-html": "^2.0.1",
     "exports-loader": "^0.6.4",
     "file-loader": "^0.11.1",
+    "fuzzaldrin-plus": "^0.5.0",
     "imports-loader": "^0.7.1",
     "jed": "^1.1.1",
     "jquery": "^2.2.1",
diff --git a/qa/qa.rb b/qa/qa.rb
index 59d9dd131c2..e8689a44f4d 100644
--- a/qa/qa.rb
+++ b/qa/qa.rb
@@ -8,6 +8,7 @@ module QA
     autoload :Release, 'qa/runtime/release'
     autoload :User, 'qa/runtime/user'
     autoload :Namespace, 'qa/runtime/namespace'
+    autoload :Scenario, 'qa/runtime/scenario'
   end
 
   ##
@@ -80,6 +81,11 @@ module QA
     module Admin
       autoload :Menu, 'qa/page/admin/menu'
     end
+
+    module Mattermost
+      autoload :Main, 'qa/page/mattermost/main'
+      autoload :Login, 'qa/page/mattermost/login'
+    end
   end
 
   ##
diff --git a/qa/qa/page/group/show.rb b/qa/qa/page/group/show.rb
index 6987c1f8f85..8080deda675 100644
--- a/qa/qa/page/group/show.rb
+++ b/qa/qa/page/group/show.rb
@@ -2,10 +2,6 @@ module QA
   module Page
     module Group
       class Show < Page::Base
-        def go_to_subgroups
-          click_link 'Subgroups'
-        end
-
         def go_to_subgroup(name)
           click_link name
         end
@@ -15,11 +11,19 @@ module QA
         end
 
         def go_to_new_subgroup
-          click_on 'New Subgroup'
+          within '.new-project-subgroup' do
+            find('.dropdown-toggle').click
+            find("li[data-value='new-subgroup']").click
+          end
+          find("input[data-action='new-subgroup']").click
         end
 
         def go_to_new_project
-          click_on 'New Project'
+          within '.new-project-subgroup' do
+            find('.dropdown-toggle').click
+            find("li[data-value='new-project']").click
+          end
+          find("input[data-action='new-project']").click
         end
       end
     end
diff --git a/qa/qa/page/mattermost/login.rb b/qa/qa/page/mattermost/login.rb
new file mode 100644
index 00000000000..2001dc5b230
--- /dev/null
+++ b/qa/qa/page/mattermost/login.rb
@@ -0,0 +1,19 @@
+module QA
+  module Page
+    module Mattermost
+      class Login < Page::Base
+        def initialize
+          visit(Runtime::Scenario.mattermost + '/login')
+        end
+
+        def sign_in_using_oauth
+          click_link class: 'btn btn-custom-login gitlab'
+
+          if page.has_content?('Authorize GitLab Mattermost to use your account?')
+            click_button 'Authorize'
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/qa/qa/page/mattermost/main.rb b/qa/qa/page/mattermost/main.rb
new file mode 100644
index 00000000000..e636d7676f4
--- /dev/null
+++ b/qa/qa/page/mattermost/main.rb
@@ -0,0 +1,11 @@
+module QA
+  module Page
+    module Mattermost
+      class Main < Page::Base
+        def initialize
+          visit(Runtime::Scenario.mattermost)
+        end
+      end
+    end
+  end
+end
diff --git a/qa/qa/runtime/scenario.rb b/qa/qa/runtime/scenario.rb
new file mode 100644
index 00000000000..0c5e9787e17
--- /dev/null
+++ b/qa/qa/runtime/scenario.rb
@@ -0,0 +1,8 @@
+module QA
+  module Runtime
+    module Scenario
+      extend self
+      attr_accessor :mattermost
+    end
+  end
+end
diff --git a/qa/qa/scenario/gitlab/project/create.rb b/qa/qa/scenario/gitlab/project/create.rb
index 7b614bfdd94..bb3b9e19c0f 100644
--- a/qa/qa/scenario/gitlab/project/create.rb
+++ b/qa/qa/scenario/gitlab/project/create.rb
@@ -15,8 +15,6 @@ module QA
             Scenario::Gitlab::Sandbox::Prepare.perform
 
             Page::Group::Show.perform do |page|
-              page.go_to_subgroups
-
               if page.has_subgroup?(Runtime::Namespace.name)
                 page.go_to_subgroup(Runtime::Namespace.name)
               else
diff --git a/qa/qa/scenario/test/integration/mattermost.rb b/qa/qa/scenario/test/integration/mattermost.rb
index 4732f2b635b..9a84e5c8fd8 100644
--- a/qa/qa/scenario/test/integration/mattermost.rb
+++ b/qa/qa/scenario/test/integration/mattermost.rb
@@ -8,6 +8,11 @@ module QA
         #
         class Mattermost < Scenario::Entrypoint
           tags :core, :mattermost
+
+          def perform(address, mattermost, *files)
+            Runtime::Scenario.mattermost = mattermost
+            super(address, files)
+          end
         end
       end
     end
diff --git a/qa/qa/specs/features/mattermost/login_spec.rb b/qa/qa/specs/features/mattermost/login_spec.rb
new file mode 100644
index 00000000000..a89a6a3d1cf
--- /dev/null
+++ b/qa/qa/specs/features/mattermost/login_spec.rb
@@ -0,0 +1,12 @@
+module QA
+  feature 'logging in to Mattermost', :mattermost do
+    scenario 'can use gitlab oauth' do
+      Page::Main::Entry.act { sign_in_using_credentials }
+      Page::Mattermost::Login.act { sign_in_using_oauth }
+
+      Page::Mattermost::Main.perform do |page|
+        expect(page).to have_content(/(Welcome to: Mattermost|Logout GitLab Mattermost)/)
+      end
+    end
+  end
+end
diff --git a/qa/spec/scenario/entrypoint_spec.rb b/qa/spec/scenario/entrypoint_spec.rb
new file mode 100644
index 00000000000..3fd068b641c
--- /dev/null
+++ b/qa/spec/scenario/entrypoint_spec.rb
@@ -0,0 +1,46 @@
+describe QA::Scenario::Entrypoint do
+  subject do
+    Class.new(QA::Scenario::Entrypoint) do
+      tags :rspec
+    end
+  end
+
+  context '#perform' do
+    let(:config) { spy('Specs::Config') }
+    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::Specs::Runner', runner)
+    end
+
+    it 'should set address' do
+      subject.perform("hello")
+
+      expect(config).to have_received(:address=).with("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'))
+      end
+    end
+
+    context 'specifying paths' 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)))
+      end
+    end
+  end
+end
diff --git a/spec/controllers/projects/issues_controller_spec.rb b/spec/controllers/projects/issues_controller_spec.rb
index 6f48f091a20..aecdfb50759 100644
--- a/spec/controllers/projects/issues_controller_spec.rb
+++ b/spec/controllers/projects/issues_controller_spec.rb
@@ -557,6 +557,29 @@ describe Projects::IssuesController do
         end
       end
     end
+
+    describe 'GET #edit' do
+      it_behaves_like 'restricted action', success: 200
+
+      def go(id:)
+        get :edit,
+          namespace_id: project.namespace.to_param,
+          project_id: project,
+          id: id
+      end
+    end
+
+    describe 'PUT #update' do
+      it_behaves_like 'restricted action', success: 302
+
+      def go(id:)
+        put :update,
+          namespace_id: project.namespace.to_param,
+          project_id: project,
+          id: id,
+          issue: { title: 'New title' }
+      end
+    end
   end
 
   describe 'POST #create' do
diff --git a/spec/controllers/projects/merge_requests_controller_spec.rb b/spec/controllers/projects/merge_requests_controller_spec.rb
index b7cccddefdd..52ef8c6a589 100644
--- a/spec/controllers/projects/merge_requests_controller_spec.rb
+++ b/spec/controllers/projects/merge_requests_controller_spec.rb
@@ -83,15 +83,15 @@ describe Projects::MergeRequestsController do
     end
 
     describe 'as json' do
-      context 'with basic param' do
+      context 'with basic serializer param' do
         it 'renders basic MR entity as json' do
-          go(basic: true, format: :json)
+          go(serializer: 'basic', format: :json)
 
           expect(response).to match_response_schema('entities/merge_request_basic')
         end
       end
 
-      context 'without basic param' do
+      context 'without basic serializer param' do
         it 'renders the merge request in the json format' do
           go(format: :json)
 
diff --git a/spec/controllers/projects/milestones_controller_spec.rb b/spec/controllers/projects/milestones_controller_spec.rb
index 573530d0db0..209979e642d 100644
--- a/spec/controllers/projects/milestones_controller_spec.rb
+++ b/spec/controllers/projects/milestones_controller_spec.rb
@@ -86,4 +86,32 @@ describe Projects::MilestonesController do
       expect(last_note).to eq('removed milestone')
     end
   end
+
+  describe '#promote' do
+    context 'promotion succeeds' do
+      before do
+        group = create(:group)
+        group.add_developer(user)
+        milestone.project.update(namespace: group)
+      end
+
+      it 'shows group milestone' do
+        post :promote, namespace_id: project.namespace.id, project_id: project.id, id: milestone.iid
+
+        group_milestone = assigns(:milestone)
+
+        expect(response).to redirect_to(group_milestone_path(project.group, group_milestone.iid))
+        expect(flash[:notice]).to eq('Milestone has been promoted to group milestone.')
+      end
+    end
+
+    context 'promotion fails' do
+      it 'shows project milestone' do
+        post :promote, namespace_id: project.namespace.id, project_id: project.id, id: milestone.iid
+
+        expect(response).to redirect_to(project_milestone_path(project, milestone))
+        expect(flash[:alert]).to eq('Promotion failed - Project does not belong to a group.')
+      end
+    end
+  end
 end
diff --git a/spec/controllers/projects/pipelines_controller_spec.rb b/spec/controllers/projects/pipelines_controller_spec.rb
index f1ad5dd84ff..1604a2da485 100644
--- a/spec/controllers/projects/pipelines_controller_spec.rb
+++ b/spec/controllers/projects/pipelines_controller_spec.rb
@@ -46,7 +46,7 @@ describe Projects::PipelinesController do
 
     context 'when performing gitaly calls', :request_store do
       it 'limits the Gitaly requests' do
-        expect { subject }.to change { Gitlab::GitalyClient.get_request_count }.by(10)
+        expect { subject }.to change { Gitlab::GitalyClient.get_request_count }.by(8)
       end
     end
   end
diff --git a/spec/factories/ci/builds.rb b/spec/factories/ci/builds.rb
index c2b59239af9..cf38066dedc 100644
--- a/spec/factories/ci/builds.rb
+++ b/spec/factories/ci/builds.rb
@@ -119,7 +119,7 @@ FactoryGirl.define do
       finished_at nil
     end
 
-    factory :ci_build_tag do
+    trait :tag do
       tag true
     end
 
diff --git a/spec/factories/instance_configuration.rb b/spec/factories/instance_configuration.rb
new file mode 100644
index 00000000000..406c7c3caf1
--- /dev/null
+++ b/spec/factories/instance_configuration.rb
@@ -0,0 +1,5 @@
+FactoryGirl.define do
+  factory :instance_configuration do
+    skip_create
+  end
+end
diff --git a/spec/factories/services.rb b/spec/factories/services.rb
index c2674ce2d11..ccf63f3ffa4 100644
--- a/spec/factories/services.rb
+++ b/spec/factories/services.rb
@@ -38,6 +38,8 @@ FactoryGirl.define do
     active true
     properties(
       url: 'https://jira.example.com',
+      username: 'jira_user',
+      password: 'my-secret-password',
       project_key: 'jira-key'
     )
   end
diff --git a/spec/features/admin/admin_settings_spec.rb b/spec/features/admin/admin_settings_spec.rb
index c490dce7ab0..85561511101 100644
--- a/spec/features/admin/admin_settings_spec.rb
+++ b/spec/features/admin/admin_settings_spec.rb
@@ -95,6 +95,29 @@ feature 'Admin updates settings' do
     expect(find_field('ED25519 SSH keys').value).to eq(forbidden)
   end
 
+  scenario 'Change Performance Bar settings' do
+    group = create(:group)
+
+    check 'Enable the Performance Bar'
+    fill_in 'Allowed group', with: group.path
+
+    click_on 'Save'
+
+    expect(page).to have_content 'Application settings saved successfully'
+
+    expect(find_field('Enable the Performance Bar')).to be_checked
+    expect(find_field('Allowed group').value).to eq group.path
+
+    uncheck 'Enable the Performance Bar'
+
+    click_on 'Save'
+
+    expect(page).to have_content 'Application settings saved successfully'
+
+    expect(find_field('Enable the Performance Bar')).not_to be_checked
+    expect(find_field('Allowed group').value).to be_nil
+  end
+
   def check_all_events
     page.check('Active')
     page.check('Push')
diff --git a/spec/features/boards/boards_spec.rb b/spec/features/boards/boards_spec.rb
index 60ed17c0c81..ebe6939df4c 100644
--- a/spec/features/boards/boards_spec.rb
+++ b/spec/features/boards/boards_spec.rb
@@ -538,7 +538,7 @@ describe 'Issue Boards', :js do
     end
 
     it 'does not show create new list' do
-      expect(page).not_to have_selector('.js-new-board-list')
+      expect(page).not_to have_button('.js-new-board-list')
     end
 
     it 'does not allow dragging' do
diff --git a/spec/features/groups/milestone_spec.rb b/spec/features/groups/milestone_spec.rb
index 12aa54a3da1..1b41b3842c8 100644
--- a/spec/features/groups/milestone_spec.rb
+++ b/spec/features/groups/milestone_spec.rb
@@ -19,9 +19,9 @@ feature 'Group milestones', :js do
     end
 
     it 'renders description preview' do
-      form = find('.gfm-form')
+      description = find('.note-textarea')
 
-      form.fill_in(:milestone_description, with: '')
+      description.native.send_keys('')
 
       click_link('Preview')
 
@@ -31,7 +31,7 @@ feature 'Group milestones', :js do
 
       click_link('Write')
 
-      form.fill_in(:milestone_description, with: ':+1: Nice')
+      description.native.send_keys(':+1: Nice')
 
       click_link('Preview')
 
@@ -51,6 +51,13 @@ feature 'Group milestones', :js do
 
       expect(find('.start_date')).to have_content(Date.today.at_beginning_of_month.strftime('%b %-d, %Y'))
     end
+
+    it 'description input does not support autocomplete' do
+      description = find('.note-textarea')
+      description.native.send_keys('!')
+
+      expect(page).not_to have_selector('.atwho-view')
+    end
   end
 
   context 'milestones list' do
diff --git a/spec/features/issues/form_spec.rb b/spec/features/issues/form_spec.rb
index 8ce470fc288..2db6f9a2982 100644
--- a/spec/features/issues/form_spec.rb
+++ b/spec/features/issues/form_spec.rb
@@ -218,15 +218,54 @@ describe 'New/edit issue', :js do
 
   context 'edit issue' do
     before do
-      visit project_issue_path(project, issue)
-      page.within('.content .issuable-actions') do
-        click_on 'Edit'
+      visit edit_project_issue_path(project, issue)
+    end
+
+    it 'allows user to update issue' do
+      expect(find('input[name="issue[assignee_ids][]"]', visible: false).value).to match(user.id.to_s)
+      expect(find('input[name="issue[milestone_id]"]', visible: false).value).to match(milestone.id.to_s)
+      expect(find('a', text: 'Assign to me', visible: false)).not_to be_visible
+
+      page.within '.js-user-search' do
+        expect(page).to have_content user.name
+      end
+
+      page.within '.js-milestone-select' do
+        expect(page).to have_content milestone.title
+      end
+
+      click_button 'Labels'
+      page.within '.dropdown-menu-labels' do
+        click_link label.title
+        click_link label2.title
+      end
+      page.within '.js-label-select' do
+        expect(page).to have_content label.title
+      end
+      expect(page.all('input[name="issue[label_ids][]"]', visible: false)[1].value).to match(label.id.to_s)
+      expect(page.all('input[name="issue[label_ids][]"]', visible: false)[2].value).to match(label2.id.to_s)
+
+      click_button 'Save changes'
+
+      page.within '.issuable-sidebar' do
+        page.within '.assignee' do
+          expect(page).to have_content user.name
+        end
+
+        page.within '.milestone' do
+          expect(page).to have_content milestone.title
+        end
+
+        page.within '.labels' do
+          expect(page).to have_content label.title
+          expect(page).to have_content label2.title
+        end
       end
     end
 
     it 'description has autocomplete' do
-      find_field('issue-description').native.send_keys('')
-      fill_in 'issue-description', with: '@'
+      find('#issue_description').native.send_keys('')
+      fill_in 'issue_description', with: '@'
 
       expect(page).to have_selector('.atwho-view')
     end
diff --git a/spec/features/issues_spec.rb b/spec/features/issues_spec.rb
index 25e99774575..d4fd3a50008 100644
--- a/spec/features/issues_spec.rb
+++ b/spec/features/issues_spec.rb
@@ -1,6 +1,6 @@
 require 'spec_helper'
 
-describe 'Issues', :js do
+describe 'Issues' do
   include DropzoneHelper
   include IssueHelpers
   include SortingHelper
@@ -24,15 +24,109 @@ describe 'Issues', :js do
     end
 
     before do
-      visit project_issue_path(project, issue)
-      page.within('.content .issuable-actions') do
-        find('.issuable-edit').click
-      end
-      find('.issue-details .content-block .js-zen-enter').click
+      visit edit_project_issue_path(project, issue)
+      find('.js-zen-enter').click
     end
 
     it 'opens new issue popup' do
-      expect(page).to have_content(issue.description)
+      expect(page).to have_content("Issue ##{issue.iid}")
+    end
+  end
+
+  describe 'Editing issue assignee' do
+    let!(:issue) do
+      create(:issue,
+             author: user,
+             assignees: [user],
+             project: project)
+    end
+
+    it 'allows user to select unassigned', :js do
+      visit edit_project_issue_path(project, issue)
+
+      expect(page).to have_content "Assignee #{user.name}"
+
+      first('.js-user-search').click
+      click_link 'Unassigned'
+
+      click_button 'Save changes'
+
+      page.within('.assignee') do
+        expect(page).to have_content 'No assignee - assign yourself'
+      end
+
+      expect(issue.reload.assignees).to be_empty
+    end
+  end
+
+  describe 'due date', :js do
+    context 'on new form' do
+      before do
+        visit new_project_issue_path(project)
+      end
+
+      it 'saves with due date' do
+        date = Date.today.at_beginning_of_month
+
+        fill_in 'issue_title', with: 'bug 345'
+        fill_in 'issue_description', with: 'bug description'
+        find('#issuable-due-date').click
+
+        page.within '.pika-single' do
+          click_button date.day
+        end
+
+        expect(find('#issuable-due-date').value).to eq date.to_s
+
+        click_button 'Submit issue'
+
+        page.within '.issuable-sidebar' do
+          expect(page).to have_content date.to_s(:medium)
+        end
+      end
+    end
+
+    context 'on edit form' do
+      let(:issue) { create(:issue, author: user, project: project, due_date: Date.today.at_beginning_of_month.to_s) }
+
+      before do
+        visit edit_project_issue_path(project, issue)
+      end
+
+      it 'saves with due date' do
+        date = Date.today.at_beginning_of_month
+
+        expect(find('#issuable-due-date').value).to eq date.to_s
+
+        date = date.tomorrow
+
+        fill_in 'issue_title', with: 'bug 345'
+        fill_in 'issue_description', with: 'bug description'
+        find('#issuable-due-date').click
+
+        page.within '.pika-single' do
+          click_button date.day
+        end
+
+        expect(find('#issuable-due-date').value).to eq date.to_s
+
+        click_button 'Save changes'
+
+        page.within '.issuable-sidebar' do
+          expect(page).to have_content date.to_s(:medium)
+        end
+      end
+
+      it 'warns about version conflict' do
+        issue.update(title: "New title")
+
+        fill_in 'issue_title', with: 'bug 345'
+        fill_in 'issue_description', with: 'bug description'
+
+        click_button 'Save changes'
+
+        expect(page).to have_content 'Someone edited the issue the same time you did'
+      end
     end
   end
 
diff --git a/spec/features/projects/members/share_with_group_spec.rb b/spec/features/projects/members/share_with_group_spec.rb
index 3b368f8e25d..63b5df5a8f5 100644
--- a/spec/features/projects/members/share_with_group_spec.rb
+++ b/spec/features/projects/members/share_with_group_spec.rb
@@ -149,7 +149,7 @@ feature 'Project > Members > Share with Group', :js do
         create(:group).add_owner(master)
 
         visit project_settings_members_path(project)
-        execute_script 'GroupsSelect.PER_PAGE = 1;'
+        execute_script 'GROUP_SELECT_PER_PAGE = 1;'
         open_select2 '#link_group_id'
       end
 
diff --git a/spec/features/projects/merge_requests/user_manages_subscription_spec.rb b/spec/features/projects/merge_requests/user_manages_subscription_spec.rb
index 30a80f8e652..4ca435491cb 100644
--- a/spec/features/projects/merge_requests/user_manages_subscription_spec.rb
+++ b/spec/features/projects/merge_requests/user_manages_subscription_spec.rb
@@ -13,7 +13,7 @@ describe 'User manages subscription', :js do
   end
 
   it 'toggles subscription' do
-    subscribe_button = find('.issuable-subscribe-button span')
+    subscribe_button = find('.js-issuable-subscribe-button')
 
     expect(subscribe_button).to have_content('Subscribe')
 
diff --git a/spec/features/projects/services/user_activates_packagist_spec.rb b/spec/features/projects/services/user_activates_packagist_spec.rb
new file mode 100644
index 00000000000..b0cc818f093
--- /dev/null
+++ b/spec/features/projects/services/user_activates_packagist_spec.rb
@@ -0,0 +1,24 @@
+require 'spec_helper'
+
+describe 'User activates Packagist' do
+  let(:project) { create(:project) }
+  let(:user) { create(:user) }
+
+  before do
+    project.add_master(user)
+    sign_in(user)
+
+    visit(project_settings_integrations_path(project))
+
+    click_link('Packagist')
+  end
+
+  it 'activates service' do
+    check('Active')
+    fill_in('Username', with: 'theUser')
+    fill_in('Token', with: 'verySecret')
+    click_button('Save')
+
+    expect(page).to have_content('Packagist activated.')
+  end
+end
diff --git a/spec/features/projects/services/user_views_services_spec.rb b/spec/features/projects/services/user_views_services_spec.rb
index f86591c2633..5c5e8b66642 100644
--- a/spec/features/projects/services/user_views_services_spec.rb
+++ b/spec/features/projects/services/user_views_services_spec.rb
@@ -21,5 +21,6 @@ describe 'User views services' do
     expect(page).to have_content('JetBrains TeamCity')
     expect(page).to have_content('Asana')
     expect(page).to have_content('Irker (IRC gateway)')
+    expect(page).to have_content('Packagist')
   end
 end
diff --git a/spec/features/projects/tree/create_directory_spec.rb b/spec/features/projects/tree/create_directory_spec.rb
new file mode 100644
index 00000000000..4c1fa5a666e
--- /dev/null
+++ b/spec/features/projects/tree/create_directory_spec.rb
@@ -0,0 +1,43 @@
+require 'spec_helper'
+
+feature 'Multi-file editor new directory', :js do
+  include WaitForRequests
+
+  let(:user) { create(:user) }
+  let(:project) { create(:project, :repository) }
+
+  before do
+    project.add_master(user)
+    sign_in(user)
+
+    page.driver.set_cookie('new_repo', 'true')
+
+    visit project_tree_path(project, :master)
+
+    wait_for_requests
+  end
+
+  it 'creates directory in current directory' do
+    find('.add-to-tree').click
+
+    click_link('New directory')
+
+    page.within('.popup-dialog') do
+      find('.form-control').set('foldername')
+
+      click_button('Create directory')
+    end
+
+    fill_in('commit-message', with: 'commit message')
+
+    click_button('Commit 1 file')
+
+    expect(page).to have_content('Your changes have been committed')
+    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/tree/create_file_spec.rb b/spec/features/projects/tree/create_file_spec.rb
new file mode 100644
index 00000000000..ed3b52a5790
--- /dev/null
+++ b/spec/features/projects/tree/create_file_spec.rb
@@ -0,0 +1,38 @@
+require 'spec_helper'
+
+feature 'Multi-file editor new file', :js do
+  include WaitForRequests
+
+  let(:user) { create(:user) }
+  let(:project) { create(:project, :repository) }
+
+  before do
+    project.add_master(user)
+    sign_in(user)
+
+    page.driver.set_cookie('new_repo', 'true')
+
+    visit project_tree_path(project, :master)
+
+    wait_for_requests
+  end
+
+  it 'creates file in current directory' do
+    find('.add-to-tree').click
+
+    click_link('New file')
+
+    page.within('.popup-dialog') do
+      find('.form-control').set('filename')
+
+      click_button('Create file')
+    end
+
+    fill_in('commit-message', with: 'commit message')
+
+    click_button('Commit 1 file')
+
+    expect(page).to have_content('Your changes have been committed')
+    expect(page).to have_selector('td', text: 'commit message')
+  end
+end
diff --git a/spec/features/projects/tree/upload_file_spec.rb b/spec/features/projects/tree/upload_file_spec.rb
new file mode 100644
index 00000000000..7dbe4fd0aa5
--- /dev/null
+++ b/spec/features/projects/tree/upload_file_spec.rb
@@ -0,0 +1,48 @@
+require 'spec_helper'
+
+feature 'Multi-file editor upload file', :js do
+  include WaitForRequests
+
+  let(:user) { create(:user) }
+  let(:project) { create(:project, :repository) }
+  let(:txt_file) { File.join(Rails.root, 'spec', 'fixtures', 'doc_sample.txt') }
+  let(:img_file) { File.join(Rails.root, 'spec', 'fixtures', 'dk.png') }
+
+  before do
+    project.add_master(user)
+    sign_in(user)
+
+    page.driver.set_cookie('new_repo', 'true')
+
+    visit project_tree_path(project, :master)
+
+    wait_for_requests
+  end
+
+  it 'uploads text file' do
+    find('.add-to-tree').click
+
+    # make the field visible so capybara can use it
+    execute_script('document.querySelector("#file-upload").classList.remove("hidden")')
+    attach_file('file-upload', txt_file)
+
+    find('.add-to-tree').click
+
+    expect(page).to have_selector('.repo-tab', text: 'doc_sample.txt')
+    expect(page).to have_content(File.open(txt_file, &:readline))
+  end
+
+  it 'uploads image file' do
+    find('.add-to-tree').click
+
+    # make the field visible so capybara can use it
+    execute_script('document.querySelector("#file-upload").classList.remove("hidden")')
+    attach_file('file-upload', img_file)
+
+    find('.add-to-tree').click
+
+    expect(page).to have_selector('.repo-tab', text: 'dk.png')
+    expect(page).not_to have_selector('.monaco-editor')
+    expect(page).to have_content('The source could not be displayed for this temporary file.')
+  end
+end
diff --git a/spec/features/projects/wiki/user_views_wiki_page_spec.rb b/spec/features/projects/wiki/user_views_wiki_page_spec.rb
index 470391dc66b..89f6901eb01 100644
--- a/spec/features/projects/wiki/user_views_wiki_page_spec.rb
+++ b/spec/features/projects/wiki/user_views_wiki_page_spec.rb
@@ -81,10 +81,15 @@ describe 'User views a wiki page' do
     end
 
     it 'shows a file stored in a page' do
-      file = Gollum::File.new(project.wiki)
-
-      allow_any_instance_of(Gollum::Wiki).to receive(:file).with('image.jpg', 'master').and_return(file)
-      allow_any_instance_of(Gollum::File).to receive(:mime_type).and_return('image/jpeg')
+      gollum_file_double = double('Gollum::File',
+                                  mime_type: 'image/jpeg',
+                                  name: 'images/image.jpg',
+                                  path: 'images/image.jpg',
+                                  raw_data: '')
+      wiki_file = Gitlab::Git::WikiFile.new(gollum_file_double)
+
+      allow(wiki_file).to receive(:mime_type).and_return('image/jpeg')
+      allow_any_instance_of(ProjectWiki).to receive(:find_file).with('image.jpg', nil).and_return(wiki_file)
 
       expect(page).to have_xpath('//img[@data-src="image.jpg"]')
       expect(page).to have_link('image', href: "#{project.wiki.wiki_base_path}/image.jpg")
diff --git a/spec/features/security/project/internal_access_spec.rb b/spec/features/security/project/internal_access_spec.rb
index d70cf1527e7..a7928857b7d 100644
--- a/spec/features/security/project/internal_access_spec.rb
+++ b/spec/features/security/project/internal_access_spec.rb
@@ -181,6 +181,21 @@ describe "Internal Project Access"  do
     it { is_expected.to be_denied_for(:visitor) }
   end
 
+  describe "GET /:project_path/issues/:id/edit" do
+    let(:issue) { create(:issue, project: project) }
+    subject { edit_project_issue_path(project, issue) }
+
+    it { is_expected.to be_allowed_for(:admin) }
+    it { is_expected.to be_allowed_for(:owner).of(project) }
+    it { is_expected.to be_allowed_for(:master).of(project) }
+    it { is_expected.to be_allowed_for(:developer).of(project) }
+    it { is_expected.to be_allowed_for(:reporter).of(project) }
+    it { is_expected.to be_denied_for(:guest).of(project) }
+    it { is_expected.to be_denied_for(:user) }
+    it { is_expected.to be_denied_for(:external) }
+    it { is_expected.to be_denied_for(:visitor) }
+  end
+
   describe "GET /:project_path/snippets" do
     subject { project_snippets_path(project) }
 
diff --git a/spec/features/security/project/private_access_spec.rb b/spec/features/security/project/private_access_spec.rb
index ea130606545..a4396b20afd 100644
--- a/spec/features/security/project/private_access_spec.rb
+++ b/spec/features/security/project/private_access_spec.rb
@@ -181,6 +181,21 @@ describe "Private Project Access"  do
     it { is_expected.to be_denied_for(:visitor) }
   end
 
+  describe "GET /:project_path/issues/:id/edit" do
+    let(:issue) { create(:issue, project: project) }
+    subject { edit_project_issue_path(project, issue) }
+
+    it { is_expected.to be_allowed_for(:admin) }
+    it { is_expected.to be_allowed_for(:owner).of(project) }
+    it { is_expected.to be_allowed_for(:master).of(project) }
+    it { is_expected.to be_allowed_for(:developer).of(project) }
+    it { is_expected.to be_allowed_for(:reporter).of(project) }
+    it { is_expected.to be_denied_for(:guest).of(project) }
+    it { is_expected.to be_denied_for(:user) }
+    it { is_expected.to be_denied_for(:external) }
+    it { is_expected.to be_denied_for(:visitor) }
+  end
+
   describe "GET /:project_path/snippets" do
     subject { project_snippets_path(project) }
 
diff --git a/spec/features/security/project/public_access_spec.rb b/spec/features/security/project/public_access_spec.rb
index d15f5af66c9..fccdeb0e5b7 100644
--- a/spec/features/security/project/public_access_spec.rb
+++ b/spec/features/security/project/public_access_spec.rb
@@ -394,6 +394,21 @@ describe "Public Project Access"  do
     it { is_expected.to be_allowed_for(:visitor) }
   end
 
+  describe "GET /:project_path/issues/:id/edit" do
+    let(:issue) { create(:issue, project: project) }
+    subject { edit_project_issue_path(project, issue) }
+
+    it { is_expected.to be_allowed_for(:admin) }
+    it { is_expected.to be_allowed_for(:owner).of(project) }
+    it { is_expected.to be_allowed_for(:master).of(project) }
+    it { is_expected.to be_allowed_for(:developer).of(project) }
+    it { is_expected.to be_allowed_for(:reporter).of(project) }
+    it { is_expected.to be_denied_for(:guest).of(project) }
+    it { is_expected.to be_denied_for(:user) }
+    it { is_expected.to be_denied_for(:external) }
+    it { is_expected.to be_denied_for(:visitor) }
+  end
+
   describe "GET /:project_path/snippets" do
     subject { project_snippets_path(project) }
 
diff --git a/spec/finders/branches_finder_spec.rb b/spec/finders/branches_finder_spec.rb
index 91f34973ba5..9e3f2c69606 100644
--- a/spec/finders/branches_finder_spec.rb
+++ b/spec/finders/branches_finder_spec.rb
@@ -46,6 +46,15 @@ describe BranchesFinder do
         expect(result.count).to eq(1)
       end
 
+      it 'filters branches by name ignoring letter case' do
+        branches_finder = described_class.new(repository, { search: 'FiX' })
+
+        result = branches_finder.execute
+
+        expect(result.first.name).to eq('fix')
+        expect(result.count).to eq(1)
+      end
+
       it 'does not find any branch with that name' do
         branches_finder = described_class.new(repository, { search: 'random' })
 
diff --git a/spec/fixtures/api/schemas/entities/issue.json b/spec/fixtures/api/schemas/entities/issue.json
new file mode 100644
index 00000000000..3d3329a3406
--- /dev/null
+++ b/spec/fixtures/api/schemas/entities/issue.json
@@ -0,0 +1,44 @@
+{
+  "type": "object",
+  "properties" : {
+    "id": { "type": "integer" },
+    "iid": { "type": "integer" },
+    "author_id": { "type": "integer" },
+    "description": { "type": ["string", "null"] },
+    "lock_version": { "type": ["string", "null"] },
+    "milestone_id": { "type": ["string", "null"] },
+    "title": { "type": "string" },
+    "moved_to_id": { "type": ["integer", "null"] },
+    "project_id": { "type": "integer" },
+    "web_url": { "type": "string" },
+    "state": { "type": "string" },
+    "create_note_path": { "type": "string" },
+    "preview_note_path": { "type": "string" },
+    "current_user": {
+      "type": "object",
+      "properties": {
+        "can_create_note": { "type": "boolean" },
+        "can_update": { "type": "boolean" }
+      }
+    },
+    "created_at": { "type": "date-time" },
+    "updated_at": { "type": "date-time" },
+    "branch_name": { "type": ["string", "null"] },
+    "due_date": { "type": "date" },
+    "confidential": { "type": "boolean" },
+    "discussion_locked": { "type": ["boolean", "null"] },
+    "updated_by_id": { "type": ["string", "null"] },
+    "deleted_at": { "type": ["string", "null"] },
+    "time_estimate": { "type": "integer" },
+    "total_time_spent": { "type": "integer" },
+    "human_time_estimate": { "type": ["integer", "null"] },
+    "human_total_time_spent": { "type": ["integer", "null"] },
+    "milestone": { "type": ["object", "null"] },
+    "labels": {
+      "type": "array",
+      "items": { "$ref": "label.json" }
+    },
+    "assignees": { "type": ["array", "null"] }
+  },
+  "additionalProperties": false
+}
diff --git a/spec/fixtures/api/schemas/entities/issue_sidebar.json b/spec/fixtures/api/schemas/entities/issue_sidebar.json
new file mode 100644
index 00000000000..682e345d5f5
--- /dev/null
+++ b/spec/fixtures/api/schemas/entities/issue_sidebar.json
@@ -0,0 +1,21 @@
+{
+  "type": "object",
+  "properties" : {
+    "id": { "type": "integer" },
+    "iid": { "type": "integer" },
+    "subscribed": { "type": "boolean" },
+    "time_estimate": { "type": "integer" },
+    "total_time_spent": { "type": "integer" },
+    "human_time_estimate": { "type": ["integer", "null"] },
+    "human_total_time_spent": { "type": ["integer", "null"] },
+    "participants": {
+      "type": "array",
+      "items": { "$ref": "../public_api/v4/user/basic.json" }
+    },
+    "assignees": {
+      "type": "array",
+      "items": { "$ref": "../public_api/v4/user/basic.json" }
+    }
+  },
+  "additionalProperties": false
+}
diff --git a/spec/fixtures/api/schemas/entities/label.json b/spec/fixtures/api/schemas/entities/label.json
new file mode 100644
index 00000000000..40dff764c17
--- /dev/null
+++ b/spec/fixtures/api/schemas/entities/label.json
@@ -0,0 +1,26 @@
+{
+  "type": "object",
+  "required": [
+    "id",
+    "color",
+    "description",
+    "title",
+    "priority"
+  ],
+  "properties": {
+    "id": { "type": "integer" },
+    "color": {
+      "type": "string",
+      "pattern": "^#[0-9A-Fa-f]{3}{1,2}$"
+    },
+    "description": { "type": ["string", "null"] },
+    "text_color": {
+      "type": "string",
+      "pattern": "^#[0-9A-Fa-f]{3}{1,2}$"
+    },
+    "type": { "type": "string" },
+    "title": { "type": "string" },
+    "priority": { "type": ["integer", "null"] }
+  },
+  "additionalProperties": false
+}
\ No newline at end of file
diff --git a/spec/fixtures/api/schemas/entities/merge_request_basic.json b/spec/fixtures/api/schemas/entities/merge_request_basic.json
index 6b14188582a..995f13381ad 100644
--- a/spec/fixtures/api/schemas/entities/merge_request_basic.json
+++ b/spec/fixtures/api/schemas/entities/merge_request_basic.json
@@ -9,7 +9,9 @@
     "human_time_estimate": { "type": ["string", "null"] },
     "human_total_time_spent": { "type": ["string", "null"] },
     "merge_error": { "type": ["string", "null"] },
-    "assignee_id": { "type": ["integer", "null"] }
+    "assignee_id": { "type": ["integer", "null"] },
+    "subscribed": { "type": ["boolean", "null"] },
+    "participants": { "type": "array" }
   },
   "additionalProperties": false
 }
diff --git a/spec/fixtures/api/schemas/issue.json b/spec/fixtures/api/schemas/issue.json
index e1f62508933..a55ecaa5697 100644
--- a/spec/fixtures/api/schemas/issue.json
+++ b/spec/fixtures/api/schemas/issue.json
@@ -19,32 +19,7 @@
     },
     "labels": {
       "type": "array",
-      "items": {
-        "type": "object",
-        "required": [
-          "id",
-          "color",
-          "description",
-          "title",
-          "priority"
-        ],
-        "properties": {
-          "id": { "type": "integer" },
-          "color": {
-            "type": "string",
-            "pattern": "^#[0-9A-Fa-f]{3}{1,2}+$"
-          },
-          "description": { "type": ["string", "null"] },
-          "text_color": {
-            "type": "string",
-            "pattern": "^#[0-9A-Fa-f]{3}{1,2}+$"
-          },
-          "type": { "type": "string" },
-          "title": { "type": "string" },
-          "priority": { "type": ["integer", "null"] }
-        },
-        "additionalProperties": false
-      }
+      "items": { "$ref": "entities/label.json" }
     },
     "assignee": {
       "id": { "type": "integet" },
diff --git a/spec/fixtures/api/schemas/public_api/v4/pages_domains.json b/spec/fixtures/api/schemas/public_api/v4/pages_domains.json
new file mode 100644
index 00000000000..0de1d0f1228
--- /dev/null
+++ b/spec/fixtures/api/schemas/public_api/v4/pages_domains.json
@@ -0,0 +1,23 @@
+{
+  "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
+  }
+}
diff --git a/spec/fixtures/ssh_host_example_key.pub b/spec/fixtures/ssh_host_example_key.pub
new file mode 100644
index 00000000000..6bac42b3ad0
--- /dev/null
+++ b/spec/fixtures/ssh_host_example_key.pub
@@ -0,0 +1 @@
+random content
diff --git a/spec/helpers/instance_configuration_helper_spec.rb b/spec/helpers/instance_configuration_helper_spec.rb
new file mode 100644
index 00000000000..5d716b9191d
--- /dev/null
+++ b/spec/helpers/instance_configuration_helper_spec.rb
@@ -0,0 +1,51 @@
+require 'spec_helper'
+
+describe InstanceConfigurationHelper do
+  describe '#instance_configuration_cell_html' do
+    describe 'if not block is passed' do
+      it 'returns the parameter if present' do
+        expect(helper.instance_configuration_cell_html('gitlab')).to eq('gitlab')
+      end
+
+      it 'returns "-" if the parameter is blank' do
+        expect(helper.instance_configuration_cell_html(nil)).to eq('-')
+        expect(helper.instance_configuration_cell_html('')).to eq('-')
+      end
+    end
+
+    describe 'if a block is passed' do
+      let(:upcase_block) { ->(value) { value.upcase } }
+
+      it 'returns the result of the block' do
+        expect(helper.instance_configuration_cell_html('gitlab', &upcase_block)).to eq('GITLAB')
+        expect(helper.instance_configuration_cell_html('gitlab') { |v| v.upcase }).to eq('GITLAB')
+      end
+
+      it 'returns "-" if the parameter is blank' do
+        expect(helper.instance_configuration_cell_html(nil, &upcase_block)).to eq('-')
+        expect(helper.instance_configuration_cell_html(nil) { |v| v.upcase }).to eq('-')
+        expect(helper.instance_configuration_cell_html('', &upcase_block)).to eq('-')
+      end
+    end
+
+    it 'boolean are valid values to display' do
+      expect(helper.instance_configuration_cell_html(true)).to eq(true)
+      expect(helper.instance_configuration_cell_html(false)).to eq(false)
+    end
+  end
+
+  describe '#instance_configuration_human_size_cell' do
+    it 'returns "-" if the parameter is blank' do
+      expect(helper.instance_configuration_human_size_cell(nil)).to eq('-')
+      expect(helper.instance_configuration_human_size_cell('')).to eq('-')
+    end
+
+    it 'accepts the value in bytes' do
+      expect(helper.instance_configuration_human_size_cell(1024)).to eq('1 KB')
+    end
+
+    it 'returns the value in human size readable format' do
+      expect(helper.instance_configuration_human_size_cell(1048576)).to eq('1 MB')
+    end
+  end
+end
diff --git a/spec/javascripts/gl_form_spec.js b/spec/javascripts/gl_form_spec.js
index 124fc030774..5a8009e57fd 100644
--- a/spec/javascripts/gl_form_spec.js
+++ b/spec/javascripts/gl_form_spec.js
@@ -1,9 +1,9 @@
-import autosize from 'vendor/autosize';
+import Autosize from 'autosize';
 import GLForm from '~/gl_form';
 import '~/lib/utils/text_utility';
 import '~/lib/utils/common_utils';
 
-window.autosize = autosize;
+window.autosize = Autosize;
 
 describe('GLForm', () => {
   describe('when instantiated', function () {
diff --git a/spec/javascripts/header_spec.js b/spec/javascripts/header_spec.js
index 4751eb868a4..2443ffd48f3 100644
--- a/spec/javascripts/header_spec.js
+++ b/spec/javascripts/header_spec.js
@@ -1,4 +1,4 @@
-import '~/header';
+import initTodoToggle from '~/header';
 
 describe('Header', function () {
   const todosPendingCount = '.todos-count';
@@ -14,6 +14,7 @@ describe('Header', function () {
 
   preloadFixtures(fixtureTemplate);
   beforeEach(() => {
+    initTodoToggle();
     loadFixtures(fixtureTemplate);
   });
 
diff --git a/spec/javascripts/helpers/vue_mount_component_helper.js b/spec/javascripts/helpers/vue_mount_component_helper.js
index d7a2e86771c..34acdfbfba9 100644
--- a/spec/javascripts/helpers/vue_mount_component_helper.js
+++ b/spec/javascripts/helpers/vue_mount_component_helper.js
@@ -1,4 +1,8 @@
-export default (Component, props = {}) => new Component({
-  propsData: props,
-}).$mount();
+export const createComponentWithStore = (Component, store, propsData = {}) => new Component({
+  store,
+  propsData,
+});
 
+export default (Component, props = {}, el = null) => new Component({
+  propsData: props,
+}).$mount(el);
diff --git a/spec/javascripts/issuable_context_spec.js b/spec/javascripts/issuable_context_spec.js
deleted file mode 100644
index bcb2b7b24a0..00000000000
--- a/spec/javascripts/issuable_context_spec.js
+++ /dev/null
@@ -1,34 +0,0 @@
-/* global IssuableContext */
-import '~/issuable_context';
-import $ from 'jquery';
-
-describe('IssuableContext', () => {
-  describe('toggleHiddenParticipants', () => {
-    const event = jasmine.createSpyObj('event', ['preventDefault']);
-
-    beforeEach(() => {
-      spyOn($.fn, 'data').and.returnValue('data');
-      spyOn($.fn, 'text').and.returnValue('data');
-    });
-
-    afterEach(() => {
-      gl.lazyLoader = undefined;
-    });
-
-    it('calls loadCheck if lazyLoader is set', () => {
-      gl.lazyLoader = jasmine.createSpyObj('lazyLoader', ['loadCheck']);
-
-      IssuableContext.prototype.toggleHiddenParticipants(event);
-
-      expect(gl.lazyLoader.loadCheck).toHaveBeenCalled();
-    });
-
-    it('does not throw if lazyLoader is not defined', () => {
-      gl.lazyLoader = undefined;
-
-      const toggle = IssuableContext.prototype.toggleHiddenParticipants.bind(null, event);
-
-      expect(toggle).not.toThrow();
-    });
-  });
-});
diff --git a/spec/javascripts/issuable_spec.js b/spec/javascripts/issuable_spec.js
index 45f55395d3a..ceee08d47c5 100644
--- a/spec/javascripts/issuable_spec.js
+++ b/spec/javascripts/issuable_spec.js
@@ -1,80 +1,44 @@
-/* global IssuableIndex */
-
-import '~/lib/utils/url_utility';
-import '~/issuable_index';
-
-(() => {
-  const BASE_URL = '/user/project/issues?scope=all&state=closed';
-  const DEFAULT_PARAMS = '&utf8=%E2%9C%93';
-
-  function updateForm(formValues, form) {
-    $.each(formValues, (id, value) => {
-      $(`#${id}`, form).val(value);
-    });
-  }
-
-  function resetForm(form) {
-    $('input[name!="utf8"]', form).each((index, input) => {
-      input.setAttribute('value', '');
+import IssuableIndex from '~/issuable_index';
+
+describe('Issuable', () => {
+  let Issuable;
+  describe('initBulkUpdate', () => {
+    it('should not set bulkUpdateSidebar', () => {
+      Issuable = new IssuableIndex('issue_');
+      expect(Issuable.bulkUpdateSidebar).not.toBeDefined();
     });
-  }
 
-  describe('Issuable', () => {
-    preloadFixtures('static/issuable_filter.html.raw');
+    it('should set bulkUpdateSidebar', () => {
+      const element = document.createElement('div');
+      element.classList.add('issues-bulk-update');
+      document.body.appendChild(element);
 
-    beforeEach(() => {
-      loadFixtures('static/issuable_filter.html.raw');
-      IssuableIndex.init();
-    });
-
-    it('should be defined', () => {
-      expect(window.IssuableIndex).toBeDefined();
+      Issuable = new IssuableIndex('issue_');
+      expect(Issuable.bulkUpdateSidebar).toBeDefined();
     });
+  });
 
-    describe('filtering', () => {
-      let $filtersForm;
-
-      beforeEach(() => {
-        $filtersForm = $('.js-filter-form');
-        loadFixtures('static/issuable_filter.html.raw');
-        resetForm($filtersForm);
-      });
-
-      it('should contain only the default parameters', () => {
-        spyOn(gl.utils, 'visitUrl');
-
-        IssuableIndex.filterResults($filtersForm);
-
-        expect(gl.utils.visitUrl).toHaveBeenCalledWith(BASE_URL + DEFAULT_PARAMS);
-      });
-
-      it('should filter for the phrase "broken"', () => {
-        spyOn(gl.utils, 'visitUrl');
-
-        updateForm({ search: 'broken' }, $filtersForm);
-        IssuableIndex.filterResults($filtersForm);
-        const params = `${DEFAULT_PARAMS}&search=broken`;
-
-        expect(gl.utils.visitUrl).toHaveBeenCalledWith(BASE_URL + params);
-      });
-
-      it('should keep query parameters after modifying filter', () => {
-        spyOn(gl.utils, 'visitUrl');
+  describe('resetIncomingEmailToken', () => {
+    beforeEach(() => {
+      const element = document.createElement('a');
+      element.classList.add('incoming-email-token-reset');
+      element.setAttribute('href', 'foo');
+      document.body.appendChild(element);
 
-        // initial filter
-        updateForm({ milestone_title: 'v1.0' }, $filtersForm);
+      const input = document.createElement('input');
+      input.setAttribute('id', 'issue_email');
+      document.body.appendChild(input);
 
-        IssuableIndex.filterResults($filtersForm);
-        let params = `${DEFAULT_PARAMS}&milestone_title=v1.0`;
-        expect(gl.utils.visitUrl).toHaveBeenCalledWith(BASE_URL + params);
+      Issuable = new IssuableIndex('issue_');
+    });
 
-        // update filter
-        updateForm({ label_name: 'Frontend' }, $filtersForm);
+    it('should send request to reset email token', () => {
+      spyOn(jQuery, 'ajax').and.callThrough();
+      document.querySelector('.incoming-email-token-reset').click();
 
-        IssuableIndex.filterResults($filtersForm);
-        params = `${DEFAULT_PARAMS}&milestone_title=v1.0&label_name=Frontend`;
-        expect(gl.utils.visitUrl).toHaveBeenCalledWith(BASE_URL + params);
-      });
+      expect(jQuery.ajax).toHaveBeenCalled();
+      expect(jQuery.ajax.calls.argsFor(0)[0].url).toEqual('foo');
     });
   });
-})();
+});
+
diff --git a/spec/javascripts/labels_issue_sidebar_spec.js b/spec/javascripts/labels_issue_sidebar_spec.js
index e47adc49224..a197b35f6fb 100644
--- a/spec/javascripts/labels_issue_sidebar_spec.js
+++ b/spec/javascripts/labels_issue_sidebar_spec.js
@@ -1,14 +1,12 @@
 /* eslint-disable no-new */
-/* global IssuableContext */
-/* global LabelsSelect */
+import IssuableContext from '~/issuable_context';
+import LabelsSelect from '~/labels_select';
 
 import '~/gl_dropdown';
 import 'select2';
 import '~/api';
 import '~/create_label';
-import '~/issuable_context';
 import '~/users_select';
-import '~/labels_select';
 
 (() => {
   let saveLabelCount = 0;
diff --git a/spec/javascripts/merge_request_notes_spec.js b/spec/javascripts/merge_request_notes_spec.js
index ac6ace48108..6054b75d0b8 100644
--- a/spec/javascripts/merge_request_notes_spec.js
+++ b/spec/javascripts/merge_request_notes_spec.js
@@ -1,6 +1,6 @@
 /* global Notes */
 
-import 'vendor/autosize';
+import 'autosize';
 import '~/gl_form';
 import '~/lib/utils/text_utility';
 import '~/render_gfm';
diff --git a/spec/javascripts/notes/components/issue_comment_form_spec.js b/spec/javascripts/notes/components/issue_comment_form_spec.js
index 3f659af5c3b..a26fc8f63cc 100644
--- a/spec/javascripts/notes/components/issue_comment_form_spec.js
+++ b/spec/javascripts/notes/components/issue_comment_form_spec.js
@@ -1,5 +1,5 @@
 import Vue from 'vue';
-import autosize from 'vendor/autosize';
+import Autosize from 'autosize';
 import store from '~/notes/stores';
 import issueCommentForm from '~/notes/components/issue_comment_form.vue';
 import { loggedOutIssueData, notesDataMock, userDataMock, issueDataMock } from '../mock_data';
@@ -97,14 +97,14 @@ describe('issue_comment_form component', () => {
       });
 
       it('should resize textarea after note discarded', (done) => {
-        spyOn(autosize, 'update');
+        spyOn(Autosize, 'update');
         spyOn(vm, 'discard').and.callThrough();
 
         vm.note = 'foo';
         vm.discard();
 
         Vue.nextTick(() => {
-          expect(autosize.update).toHaveBeenCalled();
+          expect(Autosize.update).toHaveBeenCalled();
           done();
         });
       });
diff --git a/spec/javascripts/notes/components/issue_placeholder_system_note_spec.js b/spec/javascripts/notes/components/issue_placeholder_system_note_spec.js
deleted file mode 100644
index d508a49f710..00000000000
--- a/spec/javascripts/notes/components/issue_placeholder_system_note_spec.js
+++ /dev/null
@@ -1,24 +0,0 @@
-import Vue from 'vue';
-import placeholderSystemNote from '~/notes/components/issue_placeholder_system_note.vue';
-
-describe('issue placeholder system note component', () => {
-  let mountComponent;
-  beforeEach(() => {
-    const PlaceholderSystemNote = Vue.extend(placeholderSystemNote);
-
-    mountComponent = props => new PlaceholderSystemNote({
-      propsData: {
-        note: {
-          body: props,
-        },
-      },
-    }).$mount();
-  });
-
-  it('should render system note placeholder with plain text', () => {
-    const vm = mountComponent('This is a placeholder');
-
-    expect(vm.$el.tagName).toEqual('LI');
-    expect(vm.$el.querySelector('.timeline-content em').textContent.trim()).toEqual('This is a placeholder');
-  });
-});
diff --git a/spec/javascripts/notes_spec.js b/spec/javascripts/notes_spec.js
index 4546b88e44d..53d8faae911 100644
--- a/spec/javascripts/notes_spec.js
+++ b/spec/javascripts/notes_spec.js
@@ -1,7 +1,7 @@
 /* eslint-disable space-before-function-paren, no-unused-expressions, no-var, object-shorthand, comma-dangle, max-len */
 /* global Notes */
 
-import 'vendor/autosize';
+import 'autosize';
 import '~/gl_form';
 import '~/lib/utils/text_utility';
 import '~/render_gfm';
diff --git a/spec/javascripts/repo/components/new_branch_form_spec.js b/spec/javascripts/repo/components/new_branch_form_spec.js
index c9c5ce096fc..9a705a1f0ed 100644
--- a/spec/javascripts/repo/components/new_branch_form_spec.js
+++ b/spec/javascripts/repo/components/new_branch_form_spec.js
@@ -1,8 +1,8 @@
 import Vue from 'vue';
+import store from '~/repo/stores';
 import newBranchForm from '~/repo/components/new_branch_form.vue';
-import eventHub from '~/repo/event_hub';
-import RepoStore from '~/repo/stores/repo_store';
-import createComponent from '../../helpers/vue_mount_component_helper';
+import { createComponentWithStore } from '../../helpers/vue_mount_component_helper';
+import { resetStore } from '../helpers';
 
 describe('Multi-file editor new branch form', () => {
   let vm;
@@ -10,17 +10,17 @@ describe('Multi-file editor new branch form', () => {
   beforeEach(() => {
     const Component = Vue.extend(newBranchForm);
 
-    RepoStore.currentBranch = 'master';
+    vm = createComponentWithStore(Component, store);
 
-    vm = createComponent(Component, {
-      currentBranch: RepoStore.currentBranch,
-    });
+    vm.$store.state.currentBranch = 'master';
+
+    vm.$mount();
   });
 
   afterEach(() => {
     vm.$destroy();
 
-    RepoStore.currentBranch = '';
+    resetStore(vm.$store);
   });
 
   describe('template', () => {
@@ -48,6 +48,10 @@ describe('Multi-file editor new branch form', () => {
   });
 
   describe('submitNewBranch', () => {
+    beforeEach(() => {
+      spyOn(vm, 'createNewBranch').and.returnValue(Promise.resolve());
+    });
+
     it('sets to loading', () => {
       vm.submitNewBranch();
 
@@ -66,57 +70,45 @@ describe('Multi-file editor new branch form', () => {
       });
     });
 
-    it('emits an event with branchName', () => {
-      spyOn(eventHub, '$emit');
-
+    it('calls createdNewBranch with branchName', () => {
       vm.branchName = 'testing';
 
       vm.submitNewBranch();
 
-      expect(eventHub.$emit).toHaveBeenCalledWith('createNewBranch', 'testing');
+      expect(vm.createNewBranch).toHaveBeenCalledWith('testing');
     });
   });
 
-  describe('showErrorMessage', () => {
-    it('sets loading to false', () => {
-      vm.loading = true;
-
-      vm.showErrorMessage();
-
-      expect(vm.loading).toBeFalsy();
-    });
-
-    it('creates flash element', () => {
-      vm.showErrorMessage('error message');
-
-      expect(vm.$el.querySelector('.flash-alert')).not.toBeNull();
-      expect(vm.$el.querySelector('.flash-alert').textContent.trim()).toBe('error message');
+  describe('submitNewBranch with error', () => {
+    beforeEach(() => {
+      spyOn(vm, 'createNewBranch').and.returnValue(Promise.reject({
+        json: () => Promise.resolve({
+          message: 'error message',
+        }),
+      }));
     });
-  });
 
-  describe('createdNewBranch', () => {
-    it('set loading to false', () => {
+    it('sets loading to false', (done) => {
       vm.loading = true;
 
-      vm.createdNewBranch();
-
-      expect(vm.loading).toBeFalsy();
-    });
-
-    it('resets branch name', () => {
-      vm.branchName = 'testing';
+      vm.submitNewBranch();
 
-      vm.createdNewBranch();
+      setTimeout(() => {
+        expect(vm.loading).toBeFalsy();
 
-      expect(vm.branchName).toBe('');
+        done();
+      });
     });
 
-    it('sets the dropdown toggle text', () => {
-      vm.dropdownText = document.createElement('span');
+    it('creates flash element', (done) => {
+      vm.submitNewBranch();
 
-      vm.createdNewBranch('branch name');
+      setTimeout(() => {
+        expect(vm.$el.querySelector('.flash-alert')).not.toBeNull();
+        expect(vm.$el.querySelector('.flash-alert').textContent.trim()).toBe('error message');
 
-      expect(vm.dropdownText.textContent).toBe('branch name');
+        done();
+      });
     });
   });
 });
diff --git a/spec/javascripts/repo/components/new_dropdown/index_spec.js b/spec/javascripts/repo/components/new_dropdown/index_spec.js
new file mode 100644
index 00000000000..93b10fc1fee
--- /dev/null
+++ b/spec/javascripts/repo/components/new_dropdown/index_spec.js
@@ -0,0 +1,71 @@
+import Vue from 'vue';
+import store from '~/repo/stores';
+import newDropdown from '~/repo/components/new_dropdown/index.vue';
+import { createComponentWithStore } from '../../../helpers/vue_mount_component_helper';
+import { resetStore } from '../../helpers';
+
+describe('new dropdown component', () => {
+  let vm;
+
+  beforeEach(() => {
+    const component = Vue.extend(newDropdown);
+
+    vm = createComponentWithStore(component, store);
+
+    vm.$store.state.path = '';
+
+    vm.$mount();
+  });
+
+  afterEach(() => {
+    vm.$destroy();
+
+    resetStore(vm.$store);
+  });
+
+  it('renders new file and new directory links', () => {
+    expect(vm.$el.querySelectorAll('a')[0].textContent.trim()).toBe('New file');
+    expect(vm.$el.querySelectorAll('a')[1].textContent.trim()).toBe('New directory');
+  });
+
+  describe('createNewItem', () => {
+    it('sets modalType to blob when new file is clicked', () => {
+      vm.$el.querySelectorAll('a')[0].click();
+
+      expect(vm.modalType).toBe('blob');
+    });
+
+    it('sets modalType to tree when new directory is clicked', () => {
+      vm.$el.querySelectorAll('a')[1].click();
+
+      expect(vm.modalType).toBe('tree');
+    });
+
+    it('opens modal when link is clicked', (done) => {
+      vm.$el.querySelectorAll('a')[0].click();
+
+      Vue.nextTick(() => {
+        expect(vm.$el.querySelector('.modal')).not.toBeNull();
+
+        done();
+      });
+    });
+  });
+
+  describe('toggleModalOpen', () => {
+    it('closes modal after toggling', (done) => {
+      vm.toggleModalOpen();
+
+      Vue.nextTick()
+        .then(() => {
+          expect(vm.$el.querySelector('.modal')).not.toBeNull();
+        })
+        .then(vm.toggleModalOpen)
+        .then(() => {
+          expect(vm.$el.querySelector('.modal')).toBeNull();
+        })
+        .then(done)
+        .catch(done.fail);
+    });
+  });
+});
diff --git a/spec/javascripts/repo/components/new_dropdown/modal_spec.js b/spec/javascripts/repo/components/new_dropdown/modal_spec.js
new file mode 100644
index 00000000000..1ff7590ec79
--- /dev/null
+++ b/spec/javascripts/repo/components/new_dropdown/modal_spec.js
@@ -0,0 +1,198 @@
+import Vue from 'vue';
+import store from '~/repo/stores';
+import modal from '~/repo/components/new_dropdown/modal.vue';
+import { createComponentWithStore } from '../../../helpers/vue_mount_component_helper';
+import { file, resetStore } from '../../helpers';
+
+describe('new file modal component', () => {
+  const Component = Vue.extend(modal);
+  let vm;
+
+  afterEach(() => {
+    vm.$destroy();
+
+    resetStore(vm.$store);
+  });
+
+  ['tree', 'blob'].forEach((type) => {
+    describe(type, () => {
+      beforeEach(() => {
+        vm = createComponentWithStore(Component, store, {
+          type,
+          path: '',
+        }).$mount();
+
+        vm.entryName = 'testing';
+      });
+
+      it(`sets modal title as ${type}`, () => {
+        const title = type === 'tree' ? 'directory' : 'file';
+
+        expect(vm.$el.querySelector('.modal-title').textContent.trim()).toBe(`Create new ${title}`);
+      });
+
+      it(`sets button label as ${type}`, () => {
+        const title = type === 'tree' ? 'directory' : 'file';
+
+        expect(vm.$el.querySelector('.btn-success').textContent.trim()).toBe(`Create ${title}`);
+      });
+
+      it(`sets form label as ${type}`, () => {
+        const title = type === 'tree' ? 'Directory' : 'File';
+
+        expect(vm.$el.querySelector('.label-light').textContent.trim()).toBe(`${title} name`);
+      });
+
+      describe('createEntryInStore', () => {
+        it('calls createTempEntry', () => {
+          spyOn(vm, 'createTempEntry');
+
+          vm.createEntryInStore();
+
+          expect(vm.createTempEntry).toHaveBeenCalledWith({
+            name: 'testing',
+            type,
+          });
+        });
+
+        it('sets editMode to true', (done) => {
+          vm.createEntryInStore();
+
+          setTimeout(() => {
+            expect(vm.$store.state.editMode).toBeTruthy();
+
+            done();
+          });
+        });
+
+        it('toggles blob view', (done) => {
+          vm.createEntryInStore();
+
+          setTimeout(() => {
+            expect(vm.$store.state.currentBlobView).toBe('repo-editor');
+
+            done();
+          });
+        });
+
+        it('opens newly created file', (done) => {
+          vm.createEntryInStore();
+
+          setTimeout(() => {
+            expect(vm.$store.state.openFiles.length).toBe(1);
+            expect(vm.$store.state.openFiles[0].name).toBe(type === 'blob' ? 'testing' : '.gitkeep');
+
+            done();
+          });
+        });
+
+        it(`creates ${type} in the current stores path`, (done) => {
+          vm.$store.state.path = 'app';
+
+          vm.createEntryInStore();
+
+          setTimeout(() => {
+            expect(vm.$store.state.tree[0].path).toBe('app/testing');
+            expect(vm.$store.state.tree[0].name).toBe('testing');
+
+            if (type === 'tree') {
+              expect(vm.$store.state.tree[0].tree.length).toBe(1);
+            }
+
+            done();
+          });
+        });
+
+        if (type === 'blob') {
+          it('creates new file', (done) => {
+            vm.createEntryInStore();
+
+            setTimeout(() => {
+              expect(vm.$store.state.tree.length).toBe(1);
+              expect(vm.$store.state.tree[0].name).toBe('testing');
+              expect(vm.$store.state.tree[0].type).toBe('blob');
+              expect(vm.$store.state.tree[0].tempFile).toBeTruthy();
+
+              done();
+            });
+          });
+
+          it('does not create temp file when file already exists', (done) => {
+            vm.$store.state.tree.push(file('testing', '1', type));
+
+            vm.createEntryInStore();
+
+            setTimeout(() => {
+              expect(vm.$store.state.tree.length).toBe(1);
+              expect(vm.$store.state.tree[0].name).toBe('testing');
+              expect(vm.$store.state.tree[0].type).toBe('blob');
+              expect(vm.$store.state.tree[0].tempFile).toBeFalsy();
+
+              done();
+            });
+          });
+        } else {
+          it('creates new tree', () => {
+            vm.createEntryInStore();
+
+            expect(vm.$store.state.tree.length).toBe(1);
+            expect(vm.$store.state.tree[0].name).toBe('testing');
+            expect(vm.$store.state.tree[0].type).toBe('tree');
+            expect(vm.$store.state.tree[0].tempFile).toBeTruthy();
+            expect(vm.$store.state.tree[0].tree.length).toBe(1);
+            expect(vm.$store.state.tree[0].tree[0].name).toBe('.gitkeep');
+          });
+
+          it('creates multiple trees when entryName has slashes', () => {
+            vm.entryName = 'app/test';
+            vm.createEntryInStore();
+
+            expect(vm.$store.state.tree.length).toBe(1);
+            expect(vm.$store.state.tree[0].name).toBe('app');
+            expect(vm.$store.state.tree[0].tree[0].name).toBe('test');
+            expect(vm.$store.state.tree[0].tree[0].tree[0].name).toBe('.gitkeep');
+          });
+
+          it('creates tree in existing tree', () => {
+            vm.$store.state.tree.push(file('app', '1', 'tree'));
+
+            vm.entryName = 'app/test';
+            vm.createEntryInStore();
+
+            expect(vm.$store.state.tree.length).toBe(1);
+            expect(vm.$store.state.tree[0].name).toBe('app');
+            expect(vm.$store.state.tree[0].tempFile).toBeFalsy();
+            expect(vm.$store.state.tree[0].tree[0].tempFile).toBeTruthy();
+            expect(vm.$store.state.tree[0].tree[0].name).toBe('test');
+            expect(vm.$store.state.tree[0].tree[0].tree[0].name).toBe('.gitkeep');
+          });
+
+          it('does not create new tree when already exists', () => {
+            vm.$store.state.tree.push(file('app', '1', 'tree'));
+
+            vm.entryName = 'app';
+            vm.createEntryInStore();
+
+            expect(vm.$store.state.tree.length).toBe(1);
+            expect(vm.$store.state.tree[0].name).toBe('app');
+            expect(vm.$store.state.tree[0].tempFile).toBeFalsy();
+            expect(vm.$store.state.tree[0].tree.length).toBe(0);
+          });
+        }
+      });
+    });
+  });
+
+  it('focuses field on mount', () => {
+    document.body.innerHTML += '<div class="js-test"></div>';
+
+    vm = createComponentWithStore(Component, store, {
+      type: 'tree',
+      path: '',
+    }).$mount('.js-test');
+
+    expect(document.activeElement).toBe(vm.$refs.fieldName);
+
+    vm.$el.remove();
+  });
+});
diff --git a/spec/javascripts/repo/components/new_dropdown/upload_spec.js b/spec/javascripts/repo/components/new_dropdown/upload_spec.js
new file mode 100644
index 00000000000..bf7893029b1
--- /dev/null
+++ b/spec/javascripts/repo/components/new_dropdown/upload_spec.js
@@ -0,0 +1,103 @@
+import Vue from 'vue';
+import upload from '~/repo/components/new_dropdown/upload.vue';
+import store from '~/repo/stores';
+import { createComponentWithStore } from '../../../helpers/vue_mount_component_helper';
+import { resetStore } from '../../helpers';
+
+describe('new dropdown upload', () => {
+  let vm;
+
+  beforeEach(() => {
+    const Component = Vue.extend(upload);
+
+    vm = createComponentWithStore(Component, store, {
+      path: '',
+    });
+
+    vm.$mount();
+  });
+
+  afterEach(() => {
+    vm.$destroy();
+
+    resetStore(vm.$store);
+  });
+
+  describe('readFile', () => {
+    beforeEach(() => {
+      spyOn(FileReader.prototype, 'readAsText');
+      spyOn(FileReader.prototype, 'readAsDataURL');
+    });
+
+    it('calls readAsText for text files', () => {
+      const file = {
+        type: 'text/html',
+      };
+
+      vm.readFile(file);
+
+      expect(FileReader.prototype.readAsText).toHaveBeenCalledWith(file);
+    });
+
+    it('calls readAsDataURL for non-text files', () => {
+      const file = {
+        type: 'images/png',
+      };
+
+      vm.readFile(file);
+
+      expect(FileReader.prototype.readAsDataURL).toHaveBeenCalledWith(file);
+    });
+  });
+
+  describe('createFile', () => {
+    const target = {
+      result: 'content',
+    };
+    const binaryTarget = {
+      result: 'base64,base64content',
+    };
+    const file = {
+      name: 'file',
+    };
+
+    it('creates new file', (done) => {
+      vm.createFile(target, file, true);
+
+      vm.$nextTick(() => {
+        expect(vm.$store.state.tree.length).toBe(1);
+        expect(vm.$store.state.tree[0].name).toBe(file.name);
+        expect(vm.$store.state.tree[0].content).toBe(target.result);
+
+        done();
+      });
+    });
+
+    it('creates new file in path', (done) => {
+      vm.$store.state.path = 'testing';
+      vm.createFile(target, file, true);
+
+      vm.$nextTick(() => {
+        expect(vm.$store.state.tree.length).toBe(1);
+        expect(vm.$store.state.tree[0].name).toBe(file.name);
+        expect(vm.$store.state.tree[0].content).toBe(target.result);
+        expect(vm.$store.state.tree[0].path).toBe(`testing/${file.name}`);
+
+        done();
+      });
+    });
+
+    it('splits content on base64 if binary', (done) => {
+      vm.createFile(binaryTarget, file, false);
+
+      vm.$nextTick(() => {
+        expect(vm.$store.state.tree.length).toBe(1);
+        expect(vm.$store.state.tree[0].name).toBe(file.name);
+        expect(vm.$store.state.tree[0].content).toBe(binaryTarget.result.split('base64,')[1]);
+        expect(vm.$store.state.tree[0].base64).toBe(true);
+
+        done();
+      });
+    });
+  });
+});
diff --git a/spec/javascripts/repo/components/repo_commit_section_spec.js b/spec/javascripts/repo/components/repo_commit_section_spec.js
index e09d593f04c..0f991e1b727 100644
--- a/spec/javascripts/repo/components/repo_commit_section_spec.js
+++ b/spec/javascripts/repo/components/repo_commit_section_spec.js
@@ -1,56 +1,43 @@
 import Vue from 'vue';
+import store from '~/repo/stores';
+import service from '~/repo/services';
 import repoCommitSection from '~/repo/components/repo_commit_section.vue';
-import RepoStore from '~/repo/stores/repo_store';
-import RepoService from '~/repo/services/repo_service';
 import getSetTimeoutPromise from '../../helpers/set_timeout_promise_helper';
+import { file, resetStore } from '../helpers';
 
 describe('RepoCommitSection', () => {
-  const branch = 'master';
-  const projectUrl = 'projectUrl';
-  let changedFiles;
-  let openedFiles;
+  let vm;
 
-  RepoStore.projectUrl = projectUrl;
-
-  function createComponent(el) {
+  function createComponent() {
     const RepoCommitSection = Vue.extend(repoCommitSection);
 
-    return new RepoCommitSection().$mount(el);
+    const comp = new RepoCommitSection({
+      store,
+    }).$mount();
+
+    comp.$store.state.currentBranch = 'master';
+    comp.$store.state.openFiles = [file(), file()];
+    comp.$store.state.openFiles.forEach(f => Object.assign(f, {
+      changed: true,
+      content: 'testing',
+    }));
+
+    return comp.$mount();
   }
 
   beforeEach(() => {
-    // Create a copy for each test because these can get modified directly
-    changedFiles = [{
-      id: 0,
-      changed: true,
-      url: `/namespace/${projectUrl}/blob/${branch}/dir/file0.ext`,
-      path: 'dir/file0.ext',
-      newContent: 'a',
-    }, {
-      id: 1,
-      changed: true,
-      url: `/namespace/${projectUrl}/blob/${branch}/dir/file1.ext`,
-      path: 'dir/file1.ext',
-      newContent: 'b',
-    }];
-    openedFiles = changedFiles.concat([{
-      id: 2,
-      url: `/namespace/${projectUrl}/blob/${branch}/dir/file2.ext`,
-      path: 'dir/file2.ext',
-      changed: false,
-    }]);
+    vm = createComponent();
   });
 
-  it('renders a commit section', () => {
-    RepoStore.isCommitable = true;
-    RepoStore.currentBranch = branch;
-    RepoStore.targetBranch = branch;
-    RepoStore.openedFiles = openedFiles;
+  afterEach(() => {
+    vm.$destroy();
+
+    resetStore(vm.$store);
+  });
 
-    const vm = createComponent();
+  it('renders a commit section', () => {
     const changedFileElements = [...vm.$el.querySelectorAll('.changed-files > li')];
-    const commitMessage = vm.$el.querySelector('#commit-message');
-    const submitCommit = vm.$refs.submitCommit;
+    const submitCommit = vm.$el.querySelector('.btn');
     const targetBranch = vm.$el.querySelector('.target-branch');
 
     expect(vm.$el.querySelector(':scope > form')).toBeTruthy();
@@ -58,160 +45,70 @@ describe('RepoCommitSection', () => {
     expect(changedFileElements.length).toEqual(2);
 
     changedFileElements.forEach((changedFile, i) => {
-      expect(changedFile.textContent.trim()).toEqual(changedFiles[i].path);
+      expect(changedFile.textContent.trim()).toEqual(vm.$store.getters.changedFiles[i].path);
     });
 
-    expect(commitMessage.tagName).toEqual('TEXTAREA');
-    expect(commitMessage.name).toEqual('commit-message');
-    expect(submitCommit.type).toEqual('submit');
     expect(submitCommit.disabled).toBeTruthy();
     expect(submitCommit.querySelector('.fa-spinner.fa-spin')).toBeFalsy();
     expect(vm.$el.querySelector('.commit-summary').textContent.trim()).toEqual('Commit 2 files');
     expect(targetBranch.querySelector(':scope > label').textContent.trim()).toEqual('Target branch');
-    expect(targetBranch.querySelector('.help-block').textContent.trim()).toEqual(branch);
-  });
-
-  it('does not render if not isCommitable', () => {
-    RepoStore.isCommitable = false;
-    RepoStore.openedFiles = [{
-      id: 0,
-      changed: true,
-    }];
-
-    const vm = createComponent();
-
-    expect(vm.$el.innerHTML).toBeFalsy();
-  });
-
-  it('does not render if no changedFiles', () => {
-    RepoStore.isCommitable = true;
-    RepoStore.openedFiles = [];
-
-    const vm = createComponent();
-
-    expect(vm.$el.innerHTML).toBeFalsy();
+    expect(targetBranch.querySelector('.help-block').textContent.trim()).toEqual('master');
   });
 
   describe('when submitting', () => {
-    let el;
-    let vm;
-    const projectId = 'projectId';
-    const commitMessage = 'commitMessage';
-
-    beforeEach((done) => {
-      RepoStore.isCommitable = true;
-      RepoStore.currentBranch = branch;
-      RepoStore.targetBranch = branch;
-      RepoStore.openedFiles = openedFiles;
-      RepoStore.projectId = projectId;
-
-      // We need to append to body to get form `submit` events working
-      // Otherwise we run into, "Form submission canceled because the form is not connected"
-      // See https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#form-submission-algorithm
-      el = document.createElement('div');
-      document.body.appendChild(el);
-
-      vm = createComponent(el);
-      vm.commitMessage = commitMessage;
-
-      spyOn(vm, 'tryCommit').and.callThrough();
-      spyOn(vm, 'redirectToNewMr').and.stub();
-      spyOn(vm, 'redirectToBranch').and.stub();
-      spyOn(RepoService, 'commitFiles').and.returnValue(Promise.resolve());
-      spyOn(RepoService, 'getBranch').and.returnValue(Promise.resolve({
-        commit: {
-          id: 1,
-          short_id: 1,
-        },
-      }));
-
-      // Wait for the vm data to be in place
-      Vue.nextTick(() => {
-        done();
-      });
-    });
+    let changedFiles;
 
-    afterEach(() => {
-      vm.$destroy();
-      el.remove();
-      RepoStore.openedFiles = [];
-    });
+    beforeEach(() => {
+      vm.commitMessage = 'testing';
+      changedFiles = JSON.parse(JSON.stringify(vm.$store.getters.changedFiles));
 
-    it('shows commit message', () => {
-      const commitMessageEl = vm.$el.querySelector('#commit-message');
-      expect(commitMessageEl.value).toBe(commitMessage);
+      spyOn(service, 'commit').and.returnValue(Promise.resolve({
+        short_id: '1',
+        stats: {},
+      }));
     });
 
     it('allows you to submit', () => {
-      const submitCommit = vm.$refs.submitCommit;
-      expect(submitCommit.disabled).toBeFalsy();
+      expect(vm.$el.querySelector('.btn').disabled).toBeTruthy();
     });
 
-    it('shows commit submit and summary if commitMessage and spinner if submitCommitsLoading', (done) => {
-      const submitCommit = vm.$refs.submitCommit;
-      submitCommit.click();
+    it('submits commit', (done) => {
+      vm.makeCommit();
 
       // Wait for the branch check to finish
       getSetTimeoutPromise()
         .then(() => Vue.nextTick())
         .then(() => {
-          expect(vm.tryCommit).toHaveBeenCalled();
-          expect(submitCommit.querySelector('.js-commit-loading-icon')).toBeTruthy();
-          expect(vm.redirectToBranch).toHaveBeenCalled();
-
-          const args = RepoService.commitFiles.calls.allArgs()[0];
-          const { commit_message, actions, branch: payloadBranch } = args[0];
+          const args = service.commit.calls.allArgs()[0];
+          const { commit_message, actions, branch: payloadBranch } = args[1];
 
-          expect(commit_message).toBe(commitMessage);
+          expect(commit_message).toBe('testing');
           expect(actions.length).toEqual(2);
-          expect(payloadBranch).toEqual(branch);
+          expect(payloadBranch).toEqual('master');
           expect(actions[0].action).toEqual('update');
           expect(actions[1].action).toEqual('update');
-          expect(actions[0].content).toEqual(openedFiles[0].newContent);
-          expect(actions[1].content).toEqual(openedFiles[1].newContent);
-          expect(actions[0].file_path).toEqual(openedFiles[0].path);
-          expect(actions[1].file_path).toEqual(openedFiles[1].path);
+          expect(actions[0].content).toEqual(changedFiles[0].content);
+          expect(actions[1].content).toEqual(changedFiles[1].content);
+          expect(actions[0].file_path).toEqual(changedFiles[0].path);
+          expect(actions[1].file_path).toEqual(changedFiles[1].path);
         })
         .then(done)
         .catch(done.fail);
     });
 
     it('redirects to MR creation page if start new MR checkbox checked', (done) => {
+      spyOn(gl.utils, 'visitUrl');
       vm.startNewMR = true;
 
-      Vue.nextTick()
-        .then(() => {
-          const submitCommit = vm.$refs.submitCommit;
-          submitCommit.click();
-        })
-        // Wait for the branch check to finish
-        .then(() => getSetTimeoutPromise())
+      vm.makeCommit();
+
+      getSetTimeoutPromise()
+        .then(() => Vue.nextTick())
         .then(() => {
-          expect(vm.redirectToNewMr).toHaveBeenCalled();
+          expect(gl.utils.visitUrl).toHaveBeenCalled();
         })
         .then(done)
         .catch(done.fail);
     });
   });
-
-  describe('methods', () => {
-    describe('resetCommitState', () => {
-      it('should reset store vars and scroll to top', () => {
-        const vm = {
-          submitCommitsLoading: true,
-          changedFiles: new Array(10),
-          openedFiles: new Array(3),
-          commitMessage: 'commitMessage',
-          editMode: true,
-        };
-
-        repoCommitSection.methods.resetCommitState.call(vm);
-
-        expect(vm.submitCommitsLoading).toEqual(false);
-        expect(vm.changedFiles).toEqual([]);
-        expect(vm.commitMessage).toEqual('');
-        expect(vm.editMode).toEqual(false);
-      });
-    });
-  });
 });
diff --git a/spec/javascripts/repo/components/repo_edit_button_spec.js b/spec/javascripts/repo/components/repo_edit_button_spec.js
index dff2fac191d..44018464b35 100644
--- a/spec/javascripts/repo/components/repo_edit_button_spec.js
+++ b/spec/javascripts/repo/components/repo_edit_button_spec.js
@@ -1,45 +1,83 @@
 import Vue from 'vue';
+import store from '~/repo/stores';
 import repoEditButton from '~/repo/components/repo_edit_button.vue';
-import RepoStore from '~/repo/stores/repo_store';
+import { file, resetStore } from '../helpers';
 
 describe('RepoEditButton', () => {
-  function createComponent() {
+  let vm;
+
+  beforeEach(() => {
+    const f = file();
     const RepoEditButton = Vue.extend(repoEditButton);
 
-    return new RepoEditButton().$mount();
-  }
+    vm = new RepoEditButton({
+      store,
+    });
+
+    f.active = true;
+    vm.$store.dispatch('setInitialData', {
+      canCommit: true,
+      onTopOfBranch: true,
+    });
+    vm.$store.state.openFiles.push(f);
+  });
 
   afterEach(() => {
-    RepoStore.openedFiles = [];
+    vm.$destroy();
+
+    resetStore(vm.$store);
   });
 
-  it('renders an edit button that toggles the view state', (done) => {
-    RepoStore.isCommitable = true;
-    RepoStore.changedFiles = [];
-    RepoStore.binary = false;
-    RepoStore.openedFiles = [{}, {}];
+  it('renders an edit button', () => {
+    vm.$mount();
+
+    expect(vm.$el.querySelector('.btn')).not.toBeNull();
+    expect(vm.$el.querySelector('.btn').textContent.trim()).toBe('Edit');
+  });
 
-    const vm = createComponent();
+  it('renders edit button with cancel text', () => {
+    vm.$store.state.editMode = true;
 
-    expect(vm.$el.tagName).toEqual('BUTTON');
-    expect(vm.$el.textContent).toMatch('Edit');
+    vm.$mount();
 
-    spyOn(vm, 'editCancelClicked').and.callThrough();
+    expect(vm.$el.querySelector('.btn')).not.toBeNull();
+    expect(vm.$el.querySelector('.btn').textContent.trim()).toBe('Cancel edit');
+  });
 
-    vm.$el.click();
+  it('toggles edit mode on click', (done) => {
+    vm.$mount();
+
+    vm.$el.querySelector('.btn').click();
+
+    vm.$nextTick(() => {
+      expect(vm.$el.querySelector('.btn').textContent.trim()).toBe('Cancel edit');
 
-    Vue.nextTick(() => {
-      expect(vm.editCancelClicked).toHaveBeenCalled();
-      expect(vm.$el.textContent).toMatch('Cancel edit');
       done();
     });
   });
 
-  it('does not render if not isCommitable', () => {
-    RepoStore.isCommitable = false;
+  describe('discardPopupOpen', () => {
+    beforeEach(() => {
+      vm.$store.state.discardPopupOpen = true;
+      vm.$store.state.editMode = true;
+      vm.$store.state.openFiles[0].changed = true;
+
+      vm.$mount();
+    });
+
+    it('renders popup', () => {
+      expect(vm.$el.querySelector('.modal')).not.toBeNull();
+    });
+
+    it('removes all changed files', (done) => {
+      vm.$el.querySelector('.btn-warning').click();
 
-    const vm = createComponent();
+      vm.$nextTick(() => {
+        expect(vm.$store.getters.changedFiles.length).toBe(0);
+        expect(vm.$el.querySelector('.modal')).toBeNull();
 
-    expect(vm.$el.innerHTML).toBeUndefined();
+        done();
+      });
+    });
   });
 });
diff --git a/spec/javascripts/repo/components/repo_editor_spec.js b/spec/javascripts/repo/components/repo_editor_spec.js
index a25a600b3be..82f914b7c9d 100644
--- a/spec/javascripts/repo/components/repo_editor_spec.js
+++ b/spec/javascripts/repo/components/repo_editor_spec.js
@@ -1,52 +1,46 @@
 import Vue from 'vue';
-import RepoStore from '~/repo/stores/repo_store';
+import store from '~/repo/stores';
 import repoEditor from '~/repo/components/repo_editor.vue';
+import { file, resetStore } from '../helpers';
 
 describe('RepoEditor', () => {
+  let vm;
+
   beforeEach(() => {
+    const f = file();
     const RepoEditor = Vue.extend(repoEditor);
 
-    this.vm = new RepoEditor().$mount();
+    vm = new RepoEditor({
+      store,
+    });
+
+    f.active = true;
+    f.tempFile = true;
+    vm.$store.state.openFiles.push(f);
+    vm.monaco = true;
+
+    vm.$mount();
   });
 
   afterEach(() => {
-    RepoStore.openedFiles = [];
+    vm.$destroy();
+
+    resetStore(vm.$store);
   });
 
   it('renders an ide container', (done) => {
-    this.vm.openedFiles = ['idiidid'];
-    this.vm.binary = false;
-
     Vue.nextTick(() => {
-      expect(this.vm.shouldHideEditor).toBe(false);
-      expect(this.vm.$el.id).toEqual('ide');
-      expect(this.vm.$el.tagName).toBe('DIV');
+      expect(vm.shouldHideEditor).toBeFalsy();
       done();
     });
   });
 
-  describe('when there are no open files', () => {
-    it('does not render the ide', (done) => {
-      this.vm.openedFiles = [];
-
-      Vue.nextTick(() => {
-        expect(this.vm.shouldHideEditor).toBe(true);
-        expect(this.vm.$el.tagName).not.toBeDefined();
-        done();
-      });
-    });
-  });
-
   describe('when open file is binary and not raw', () => {
     it('does not render the IDE', (done) => {
-      this.vm.binary = true;
-      this.vm.activeFile = {
-        raw: false,
-      };
+      vm.$store.getters.activeFile.binary = true;
 
       Vue.nextTick(() => {
-        expect(this.vm.shouldHideEditor).toBe(true);
-        expect(this.vm.$el.tagName).not.toBeDefined();
+        expect(vm.shouldHideEditor).toBeTruthy();
         done();
       });
     });
diff --git a/spec/javascripts/repo/components/repo_file_buttons_spec.js b/spec/javascripts/repo/components/repo_file_buttons_spec.js
index 701c260224f..d6e255e4810 100644
--- a/spec/javascripts/repo/components/repo_file_buttons_spec.js
+++ b/spec/javascripts/repo/components/repo_file_buttons_spec.js
@@ -1,79 +1,49 @@
 import Vue from 'vue';
+import store from '~/repo/stores';
 import repoFileButtons from '~/repo/components/repo_file_buttons.vue';
-import RepoStore from '~/repo/stores/repo_store';
+import { file, resetStore } from '../helpers';
 
 describe('RepoFileButtons', () => {
+  const activeFile = file();
+  let vm;
+
   function createComponent() {
     const RepoFileButtons = Vue.extend(repoFileButtons);
 
-    return new RepoFileButtons().$mount();
+    activeFile.rawPath = 'test';
+    activeFile.blamePath = 'test';
+    activeFile.commitsPath = 'test';
+    activeFile.active = true;
+    store.state.openFiles.push(activeFile);
+
+    return new RepoFileButtons({
+      store,
+    }).$mount();
   }
 
   afterEach(() => {
-    RepoStore.openedFiles = [];
-  });
-
-  it('renders Raw, Blame, History, Permalink and Preview toggle', () => {
-    const activeFile = {
-      extension: 'md',
-      url: 'url',
-      raw_path: 'raw_path',
-      blame_path: 'blame_path',
-      commits_path: 'commits_path',
-      permalink: 'permalink',
-    };
-    const activeFileLabel = 'activeFileLabel';
-    RepoStore.openedFiles = new Array(1);
-    RepoStore.activeFile = activeFile;
-    RepoStore.activeFileLabel = activeFileLabel;
-    RepoStore.editMode = true;
-    RepoStore.binary = false;
-
-    const vm = createComponent();
-    const raw = vm.$el.querySelector('.raw');
-    const blame = vm.$el.querySelector('.blame');
-    const history = vm.$el.querySelector('.history');
+    vm.$destroy();
 
-    expect(vm.$el.id).toEqual('repo-file-buttons');
-    expect(raw.href).toMatch(`/${activeFile.raw_path}`);
-    expect(raw.textContent.trim()).toEqual('Raw');
-    expect(blame.href).toMatch(`/${activeFile.blame_path}`);
-    expect(blame.textContent.trim()).toEqual('Blame');
-    expect(history.href).toMatch(`/${activeFile.commits_path}`);
-    expect(history.textContent.trim()).toEqual('History');
-    expect(vm.$el.querySelector('.permalink').textContent.trim()).toEqual('Permalink');
-    expect(vm.$el.querySelector('.preview').textContent.trim()).toEqual(activeFileLabel);
+    resetStore(vm.$store);
   });
 
-  it('triggers rawPreviewToggle on preview click', () => {
-    const activeFile = {
-      extension: 'md',
-      url: 'url',
-    };
-    RepoStore.openedFiles = new Array(1);
-    RepoStore.activeFile = activeFile;
-    RepoStore.editMode = true;
-
-    const vm = createComponent();
-    const preview = vm.$el.querySelector('.preview');
-
-    spyOn(vm, 'rawPreviewToggle');
-
-    preview.click();
-
-    expect(vm.rawPreviewToggle).toHaveBeenCalled();
-  });
+  it('renders Raw, Blame, History, Permalink and Preview toggle', (done) => {
+    vm = createComponent();
 
-  it('does not render preview toggle if not canPreview', () => {
-    const activeFile = {
-      extension: 'abcd',
-      url: 'url',
-    };
-    RepoStore.openedFiles = new Array(1);
-    RepoStore.activeFile = activeFile;
+    vm.$nextTick(() => {
+      const raw = vm.$el.querySelector('.raw');
+      const blame = vm.$el.querySelector('.blame');
+      const history = vm.$el.querySelector('.history');
 
-    const vm = createComponent();
+      expect(raw.href).toMatch(`/${activeFile.rawPath}`);
+      expect(raw.textContent.trim()).toEqual('Raw');
+      expect(blame.href).toMatch(`/${activeFile.blamePath}`);
+      expect(blame.textContent.trim()).toEqual('Blame');
+      expect(history.href).toMatch(`/${activeFile.commitsPath}`);
+      expect(history.textContent.trim()).toEqual('History');
+      expect(vm.$el.querySelector('.permalink').textContent.trim()).toEqual('Permalink');
 
-    expect(vm.$el.querySelector('.preview')).toBeFalsy();
+      done();
+    });
   });
 });
diff --git a/spec/javascripts/repo/components/repo_file_spec.js b/spec/javascripts/repo/components/repo_file_spec.js
index 107f6797f8a..c45f8a18d1f 100644
--- a/spec/javascripts/repo/components/repo_file_spec.js
+++ b/spec/javascripts/repo/components/repo_file_spec.js
@@ -1,31 +1,29 @@
 import Vue from 'vue';
+import store from '~/repo/stores';
 import repoFile from '~/repo/components/repo_file.vue';
-import RepoStore from '~/repo/stores/repo_store';
-import eventHub from '~/repo/event_hub';
-import { file } from '../mock_data';
+import { file, resetStore } from '../helpers';
 
 describe('RepoFile', () => {
   const updated = 'updated';
-  const otherFile = {
-    html: '<p class="file-content">html</p>',
-    pageTitle: 'otherpageTitle',
-  };
+  let vm;
 
   function createComponent(propsData) {
     const RepoFile = Vue.extend(repoFile);
 
     return new RepoFile({
+      store,
       propsData,
     }).$mount();
   }
 
-  beforeEach(() => {
-    RepoStore.openedFiles = [];
+  afterEach(() => {
+    resetStore(vm.$store);
   });
 
   it('renders link, icon, name and last commit details', () => {
     const RepoFile = Vue.extend(repoFile);
-    const vm = new RepoFile({
+    vm = new RepoFile({
+      store,
       propsData: {
         file: file(),
       },
@@ -46,23 +44,17 @@ describe('RepoFile', () => {
   });
 
   it('does render if hasFiles is true and is loading tree', () => {
-    const vm = createComponent({
+    vm = createComponent({
       file: file(),
     });
 
     expect(vm.$el.querySelector('.fa-spin.fa-spinner')).toBeFalsy();
   });
 
-  it('sets the document title correctly', () => {
-    RepoStore.setActiveFiles(otherFile);
-
-    expect(document.title.trim()).toEqual(otherFile.pageTitle);
-  });
-
   it('renders a spinner if the file is loading', () => {
     const f = file();
     f.loading = true;
-    const vm = createComponent({
+    vm = createComponent({
       file: f,
     });
 
@@ -70,32 +62,34 @@ describe('RepoFile', () => {
     expect(vm.$el.querySelector('.fa-spin.fa-spinner').style.marginLeft).toEqual(`${vm.file.level * 16}px`);
   });
 
-  it('does not render commit message and datetime if mini', () => {
-    RepoStore.openedFiles.push(file());
-
-    const vm = createComponent({
+  it('does not render commit message and datetime if mini', (done) => {
+    vm = createComponent({
       file: file(),
     });
+    vm.$store.state.openFiles.push(vm.file);
 
-    expect(vm.$el.querySelector('.commit-message')).toBeFalsy();
-    expect(vm.$el.querySelector('.commit-update')).toBeFalsy();
+    vm.$nextTick(() => {
+      expect(vm.$el.querySelector('.commit-message')).toBeFalsy();
+      expect(vm.$el.querySelector('.commit-update')).toBeFalsy();
+
+      done();
+    });
   });
 
-  it('fires linkClicked when the link is clicked', () => {
-    const vm = createComponent({
+  it('fires clickedTreeRow when the link is clicked', () => {
+    vm = createComponent({
       file: file(),
     });
 
-    spyOn(vm, 'linkClicked');
+    spyOn(vm, 'clickedTreeRow');
 
     vm.$el.click();
 
-    expect(vm.linkClicked).toHaveBeenCalledWith(vm.file);
+    expect(vm.clickedTreeRow).toHaveBeenCalledWith(vm.file);
   });
 
   describe('submodule', () => {
     let f;
-    let vm;
 
     beforeEach(() => {
       f = file('submodule name', '123456789');
@@ -118,20 +112,4 @@ describe('RepoFile', () => {
       expect(vm.$el.querySelector('td').textContent.replace(/\s+/g, ' ')).toContain('submodule name @ 12345678');
     });
   });
-
-  describe('methods', () => {
-    describe('linkClicked', () => {
-      it('$emits fileNameClicked with file obj', () => {
-        spyOn(eventHub, '$emit');
-
-        const vm = createComponent({
-          file: file(),
-        });
-
-        vm.linkClicked(vm.file);
-
-        expect(eventHub.$emit).toHaveBeenCalledWith('fileNameClicked', vm.file);
-      });
-    });
-  });
 });
diff --git a/spec/javascripts/repo/components/repo_loading_file_spec.js b/spec/javascripts/repo/components/repo_loading_file_spec.js
index e9f95a02028..031f2a9c0b2 100644
--- a/spec/javascripts/repo/components/repo_loading_file_spec.js
+++ b/spec/javascripts/repo/components/repo_loading_file_spec.js
@@ -1,13 +1,16 @@
 import Vue from 'vue';
-import RepoStore from '~/repo/stores/repo_store';
+import store from '~/repo/stores';
 import repoLoadingFile from '~/repo/components/repo_loading_file.vue';
+import { resetStore } from '../helpers';
 
 describe('RepoLoadingFile', () => {
-  function createComponent(propsData) {
+  let vm;
+
+  function createComponent() {
     const RepoLoadingFile = Vue.extend(repoLoadingFile);
 
     return new RepoLoadingFile({
-      propsData,
+      store,
     }).$mount();
   }
 
@@ -30,33 +33,30 @@ describe('RepoLoadingFile', () => {
   }
 
   afterEach(() => {
-    RepoStore.openedFiles = [];
+    vm.$destroy();
+
+    resetStore(vm.$store);
   });
 
   it('renders 3 columns of animated LoC', () => {
-    const vm = createComponent({
-      loading: {
-        tree: true,
-      },
-      hasFiles: false,
-    });
+    vm = createComponent();
     const columns = [...vm.$el.querySelectorAll('td')];
 
     expect(columns.length).toEqual(3);
     assertColumns(columns);
   });
 
-  it('renders 1 column of animated LoC if isMini', () => {
-    RepoStore.openedFiles = new Array(1);
-    const vm = createComponent({
-      loading: {
-        tree: true,
-      },
-      hasFiles: false,
-    });
-    const columns = [...vm.$el.querySelectorAll('td')];
+  it('renders 1 column of animated LoC if isMini', (done) => {
+    vm = createComponent();
+    vm.$store.state.openFiles.push('test');
 
-    expect(columns.length).toEqual(1);
-    assertColumns(columns);
+    vm.$nextTick(() => {
+      const columns = [...vm.$el.querySelectorAll('td')];
+
+      expect(columns.length).toEqual(1);
+      assertColumns(columns);
+
+      done();
+    });
   });
 });
diff --git a/spec/javascripts/repo/components/repo_prev_directory_spec.js b/spec/javascripts/repo/components/repo_prev_directory_spec.js
index 4c064f21084..7f82ae36a64 100644
--- a/spec/javascripts/repo/components/repo_prev_directory_spec.js
+++ b/spec/javascripts/repo/components/repo_prev_directory_spec.js
@@ -1,47 +1,45 @@
 import Vue from 'vue';
+import store from '~/repo/stores';
 import repoPrevDirectory from '~/repo/components/repo_prev_directory.vue';
-import eventHub from '~/repo/event_hub';
+import { resetStore } from '../helpers';
 
 describe('RepoPrevDirectory', () => {
-  function createComponent(propsData) {
+  let vm;
+  const parentLink = 'parent';
+  function createComponent() {
     const RepoPrevDirectory = Vue.extend(repoPrevDirectory);
 
-    return new RepoPrevDirectory({
-      propsData,
-    }).$mount();
-  }
-
-  it('renders a prev dir link', () => {
-    const prevUrl = 'prevUrl';
-    const vm = createComponent({
-      prevUrl,
+    const comp = new RepoPrevDirectory({
+      store,
     });
-    const link = vm.$el.querySelector('a');
 
-    spyOn(vm, 'linkClicked');
+    comp.$store.state.parentTreeUrl = parentLink;
 
-    expect(link.href).toMatch(`/${prevUrl}`);
-    expect(link.textContent).toEqual('...');
+    return comp.$mount();
+  }
+
+  beforeEach(() => {
+    vm = createComponent();
+  });
 
-    link.click();
+  afterEach(() => {
+    vm.$destroy();
 
-    expect(vm.linkClicked).toHaveBeenCalledWith(prevUrl);
+    resetStore(vm.$store);
   });
 
-  describe('methods', () => {
-    describe('linkClicked', () => {
-      it('$emits linkclicked with prevUrl', () => {
-        const prevUrl = 'prevUrl';
-        const vm = createComponent({
-          prevUrl,
-        });
+  it('renders a prev dir link', () => {
+    const link = vm.$el.querySelector('a');
 
-        spyOn(eventHub, '$emit');
+    expect(link.href).toMatch(`/${parentLink}`);
+    expect(link.textContent).toEqual('...');
+  });
 
-        vm.linkClicked(prevUrl);
+  it('clicking row triggers getTreeData', () => {
+    spyOn(vm, 'getTreeData');
 
-        expect(eventHub.$emit).toHaveBeenCalledWith('goToPreviousDirectoryClicked', prevUrl);
-      });
-    });
+    vm.$el.querySelector('td').click();
+
+    expect(vm.getTreeData).toHaveBeenCalledWith({ endpoint: parentLink });
   });
 });
diff --git a/spec/javascripts/repo/components/repo_preview_spec.js b/spec/javascripts/repo/components/repo_preview_spec.js
index 4920cf02083..8d1a87494cf 100644
--- a/spec/javascripts/repo/components/repo_preview_spec.js
+++ b/spec/javascripts/repo/components/repo_preview_spec.js
@@ -1,23 +1,37 @@
 import Vue from 'vue';
+import store from '~/repo/stores';
 import repoPreview from '~/repo/components/repo_preview.vue';
-import RepoStore from '~/repo/stores/repo_store';
+import { file, resetStore } from '../helpers';
 
 describe('RepoPreview', () => {
+  let vm;
+
   function createComponent() {
+    const f = file();
     const RepoPreview = Vue.extend(repoPreview);
 
-    return new RepoPreview().$mount();
+    const comp = new RepoPreview({
+      store,
+    });
+
+    f.active = true;
+    f.html = 'test';
+
+    comp.$store.state.openFiles.push(f);
+
+    return comp.$mount();
   }
 
-  it('renders a div with the activeFile html', () => {
-    const activeFile = {
-      html: '<p class="file-content">html</p>',
-    };
-    RepoStore.activeFile = activeFile;
+  afterEach(() => {
+    vm.$destroy();
+
+    resetStore(vm.$store);
+  });
 
-    const vm = createComponent();
+  it('renders a div with the activeFile html', () => {
+    vm = createComponent();
 
     expect(vm.$el.tagName).toEqual('DIV');
-    expect(vm.$el.innerHTML).toContain(activeFile.html);
+    expect(vm.$el.innerHTML).toContain('test');
   });
 });
diff --git a/spec/javascripts/repo/components/repo_sidebar_spec.js b/spec/javascripts/repo/components/repo_sidebar_spec.js
index 148f275e03d..7cb4dace491 100644
--- a/spec/javascripts/repo/components/repo_sidebar_spec.js
+++ b/spec/javascripts/repo/components/repo_sidebar_spec.js
@@ -1,32 +1,31 @@
 import Vue from 'vue';
-import Helper from '~/repo/helpers/repo_helper';
-import RepoService from '~/repo/services/repo_service';
-import RepoStore from '~/repo/stores/repo_store';
+import store from '~/repo/stores';
 import repoSidebar from '~/repo/components/repo_sidebar.vue';
-import { file } from '../mock_data';
+import { file, resetStore } from '../helpers';
 
 describe('RepoSidebar', () => {
   let vm;
 
-  function createComponent() {
+  beforeEach(() => {
     const RepoSidebar = Vue.extend(repoSidebar);
 
-    return new RepoSidebar().$mount();
-  }
+    vm = new RepoSidebar({
+      store,
+    });
+
+    vm.$store.state.isRoot = true;
+    vm.$store.state.tree.push(file());
+
+    vm.$mount();
+  });
 
   afterEach(() => {
     vm.$destroy();
 
-    RepoStore.files = [];
-    RepoStore.openedFiles = [];
+    resetStore(vm.$store);
   });
 
   it('renders a sidebar', () => {
-    RepoStore.files = [file()];
-    RepoStore.openedFiles = [];
-    RepoStore.isRoot = true;
-
-    vm = createComponent();
     const thead = vm.$el.querySelector('thead');
     const tbody = vm.$el.querySelector('tbody');
 
@@ -41,139 +40,36 @@ describe('RepoSidebar', () => {
     expect(tbody.querySelector('.file')).toBeTruthy();
   });
 
-  it('does not render a thead, renders repo-file-options and sets sidebar-mini class if isMini', () => {
-    RepoStore.openedFiles = [{
-      id: 0,
-    }];
-    vm = createComponent();
-
-    expect(vm.$el.classList.contains('sidebar-mini')).toBeTruthy();
-    expect(vm.$el.querySelector('thead')).toBeTruthy();
-    expect(vm.$el.querySelector('thead .repo-file-options')).toBeTruthy();
-  });
-
-  it('renders 5 loading files if tree is loading and not hasFiles', () => {
-    RepoStore.loading.tree = true;
-    RepoStore.files = [];
-    vm = createComponent();
+  it('does not render a thead, renders repo-file-options and sets sidebar-mini class if isMini', (done) => {
+    vm.$store.state.openFiles.push(vm.$store.state.tree[0]);
 
-    expect(vm.$el.querySelectorAll('tbody .loading-file').length).toEqual(5);
-  });
-
-  it('renders a prev directory if is not root', () => {
-    RepoStore.files = [file()];
-    RepoStore.isRoot = false;
-    RepoStore.loading.tree = false;
-    vm = createComponent();
-
-    expect(vm.$el.querySelector('tbody .prev-directory')).toBeTruthy();
-  });
+    Vue.nextTick(() => {
+      expect(vm.$el.classList.contains('sidebar-mini')).toBeTruthy();
+      expect(vm.$el.querySelector('thead')).toBeTruthy();
+      expect(vm.$el.querySelector('thead .repo-file-options')).toBeTruthy();
 
-  describe('flattendFiles', () => {
-    it('returns a flattend array of files', () => {
-      const f = file();
-      f.files.push(file('testing 123'));
-      const files = [f, file()];
-      vm = createComponent();
-      vm.files = files;
-
-      expect(vm.flattendFiles.length).toBe(3);
-      expect(vm.flattendFiles[1].name).toBe('testing 123');
+      done();
     });
   });
 
-  describe('methods', () => {
-    describe('fileClicked', () => {
-      it('should fetch data for new file', () => {
-        spyOn(Helper, 'getContent').and.callThrough();
-        RepoStore.files = [file()];
-        RepoStore.isRoot = true;
-        vm = createComponent();
-
-        vm.fileClicked(RepoStore.files[0]);
-
-        expect(Helper.getContent).toHaveBeenCalledWith(RepoStore.files[0]);
-      });
-
-      it('should not fetch data for already opened files', () => {
-        const f = file();
-        spyOn(Helper, 'getFileFromPath').and.returnValue(f);
-        spyOn(RepoStore, 'setActiveFiles');
-        vm = createComponent();
-        vm.fileClicked(f);
+  it('renders 5 loading files if tree is loading', (done) => {
+    vm.$store.state.tree = [];
+    vm.$store.state.loading = true;
 
-        expect(RepoStore.setActiveFiles).toHaveBeenCalledWith(f);
-      });
+    Vue.nextTick(() => {
+      expect(vm.$el.querySelectorAll('tbody .loading-file').length).toEqual(5);
 
-      it('should hide files in directory if already open', () => {
-        spyOn(Helper, 'setDirectoryToClosed').and.callThrough();
-        const f = file();
-        f.opened = true;
-        f.type = 'tree';
-        RepoStore.files = [f];
-        vm = createComponent();
-
-        vm.fileClicked(RepoStore.files[0]);
-
-        expect(Helper.setDirectoryToClosed).toHaveBeenCalledWith(RepoStore.files[0]);
-      });
-
-      describe('submodule', () => {
-        it('opens submodule project URL', () => {
-          spyOn(gl.utils, 'visitUrl');
-
-          const f = file();
-          f.type = 'submodule';
-
-          vm = createComponent();
-
-          vm.fileClicked(f);
-
-          expect(gl.utils.visitUrl).toHaveBeenCalledWith('url');
-        });
-      });
-    });
-
-    describe('goToPreviousDirectoryClicked', () => {
-      it('should hide files in directory if already open', () => {
-        const prevUrl = 'foo/bar';
-        vm = createComponent();
-
-        vm.goToPreviousDirectoryClicked(prevUrl);
-
-        expect(RepoService.url).toEqual(prevUrl);
-      });
+      done();
     });
+  });
 
-    describe('back button', () => {
-      beforeEach(() => {
-        const f = file();
-        const file2 = Object.assign({}, file());
-        file2.url = 'test';
-        RepoStore.files = [f, file2];
-        RepoStore.openedFiles = [];
-        RepoStore.isRoot = true;
-
-        vm = createComponent();
-      });
-
-      it('render previous file when using back button', () => {
-        spyOn(Helper, 'getContent').and.callThrough();
-
-        vm.fileClicked(RepoStore.files[1]);
-        expect(Helper.getContent).toHaveBeenCalledWith(RepoStore.files[1]);
-
-        history.pushState({
-          key: Math.random(),
-        }, '', RepoStore.files[1].url);
-        const popEvent = document.createEvent('Event');
-        popEvent.initEvent('popstate', true, true);
-        window.dispatchEvent(popEvent);
+  it('renders a prev directory if is not root', (done) => {
+    vm.$store.state.isRoot = false;
 
-        expect(Helper.getContent.calls.mostRecent().args[0].url).toContain(RepoStore.files[1].url);
+    Vue.nextTick(() => {
+      expect(vm.$el.querySelector('tbody .prev-directory')).toBeTruthy();
 
-        window.history.pushState({}, null, '/');
-      });
+      done();
     });
   });
 });
diff --git a/spec/javascripts/repo/components/repo_spec.js b/spec/javascripts/repo/components/repo_spec.js
index 3558a155728..b32d2c13af8 100644
--- a/spec/javascripts/repo/components/repo_spec.js
+++ b/spec/javascripts/repo/components/repo_spec.js
@@ -1,9 +1,8 @@
 import Vue from 'vue';
+import store from '~/repo/stores';
 import repo from '~/repo/components/repo.vue';
-import RepoStore from '~/repo/stores/repo_store';
-import Service from '~/repo/services/repo_service';
-import eventHub from '~/repo/event_hub';
-import createComponent from '../../helpers/vue_mount_component_helper';
+import { createComponentWithStore } from '../../helpers/vue_mount_component_helper';
+import { file, resetStore } from '../helpers';
 
 describe('repo component', () => {
   let vm;
@@ -11,86 +10,26 @@ describe('repo component', () => {
   beforeEach(() => {
     const Component = Vue.extend(repo);
 
-    RepoStore.currentBranch = 'master';
-
-    vm = createComponent(Component);
+    vm = createComponentWithStore(Component, store).$mount();
   });
 
   afterEach(() => {
     vm.$destroy();
 
-    RepoStore.currentBranch = '';
+    resetStore(vm.$store);
   });
 
-  describe('createNewBranch', () => {
-    beforeEach(() => {
-      spyOn(history, 'pushState');
-    });
-
-    describe('success', () => {
-      beforeEach(() => {
-        spyOn(Service, 'createBranch').and.returnValue(Promise.resolve({
-          data: {
-            name: 'test',
-          },
-        }));
-      });
-
-      it('calls createBranch with branchName', () => {
-        eventHub.$emit('createNewBranch', 'test');
-
-        expect(Service.createBranch).toHaveBeenCalledWith({
-          branch: 'test',
-          ref: RepoStore.currentBranch,
-        });
-      });
-
-      it('pushes new history state', (done) => {
-        RepoStore.currentBranch = 'master';
-
-        spyOn(vm, 'getCurrentLocation').and.returnValue('http://test.com/master');
-
-        eventHub.$emit('createNewBranch', 'test');
-
-        setTimeout(() => {
-          expect(history.pushState).toHaveBeenCalledWith(jasmine.anything(), '', 'http://test.com/test');
-          done();
-        });
-      });
-
-      it('updates stores currentBranch', (done) => {
-        eventHub.$emit('createNewBranch', 'test');
-
-        setTimeout(() => {
-          expect(RepoStore.currentBranch).toBe('test');
-
-          done();
-        });
-      });
-    });
-
-    describe('failure', () => {
-      beforeEach(() => {
-        spyOn(Service, 'createBranch').and.returnValue(Promise.reject({
-          response: {
-            data: {
-              message: 'test',
-            },
-          },
-        }));
-      });
-
-      it('emits createNewBranchError event', (done) => {
-        spyOn(eventHub, '$emit').and.callThrough();
+  it('does not render panel right when no files open', () => {
+    expect(vm.$el.querySelector('.panel-right')).toBeNull();
+  });
 
-        eventHub.$emit('createNewBranch', 'test');
+  it('renders panel right when files are open', (done) => {
+    vm.$store.state.tree.push(file());
 
-        setTimeout(() => {
-          expect(eventHub.$emit).toHaveBeenCalledWith('createNewBranchError', 'test');
+    Vue.nextTick(() => {
+      expect(vm.$el.querySelector('.panel-right')).toBeNull();
 
-          done();
-        });
-      });
+      done();
     });
   });
 });
diff --git a/spec/javascripts/repo/components/repo_tab_spec.js b/spec/javascripts/repo/components/repo_tab_spec.js
index 37e297437f0..df0ca55aafc 100644
--- a/spec/javascripts/repo/components/repo_tab_spec.js
+++ b/spec/javascripts/repo/components/repo_tab_spec.js
@@ -1,47 +1,64 @@
 import Vue from 'vue';
+import store from '~/repo/stores';
 import repoTab from '~/repo/components/repo_tab.vue';
-import RepoStore from '~/repo/stores/repo_store';
+import { file, resetStore } from '../helpers';
 
 describe('RepoTab', () => {
+  let vm;
+
   function createComponent(propsData) {
     const RepoTab = Vue.extend(repoTab);
 
     return new RepoTab({
+      store,
       propsData,
     }).$mount();
   }
 
+  afterEach(() => {
+    resetStore(vm.$store);
+  });
+
   it('renders a close link and a name link', () => {
-    const tab = {
-      url: 'url',
-      name: 'name',
-    };
-    const vm = createComponent({
-      tab,
+    vm = createComponent({
+      tab: file(),
     });
+    vm.$store.state.openFiles.push(vm.tab);
     const close = vm.$el.querySelector('.close-btn');
-    const name = vm.$el.querySelector(`a[title="${tab.url}"]`);
-
-    spyOn(vm, 'closeTab');
-    spyOn(vm, 'tabClicked');
+    const name = vm.$el.querySelector(`a[title="${vm.tab.url}"]`);
 
     expect(close.querySelector('.fa-times')).toBeTruthy();
-    expect(name.textContent.trim()).toEqual(tab.name);
+    expect(name.textContent.trim()).toEqual(vm.tab.name);
+  });
 
-    close.click();
-    name.click();
+  it('calls setFileActive when clicking tab', () => {
+    vm = createComponent({
+      tab: file(),
+    });
+
+    spyOn(vm, 'setFileActive');
+
+    vm.$el.click();
 
-    expect(vm.closeTab).toHaveBeenCalledWith(tab);
-    expect(vm.tabClicked).toHaveBeenCalledWith(tab);
+    expect(vm.setFileActive).toHaveBeenCalledWith(vm.tab);
+  });
+
+  it('calls closeFile when clicking close button', () => {
+    vm = createComponent({
+      tab: file(),
+    });
+
+    spyOn(vm, 'closeFile');
+
+    vm.$el.querySelector('.close-btn').click();
+
+    expect(vm.closeFile).toHaveBeenCalledWith({ file: vm.tab });
   });
 
   it('renders an fa-circle icon if tab is changed', () => {
-    const tab = {
-      url: 'url',
-      name: 'name',
-      changed: true,
-    };
-    const vm = createComponent({
+    const tab = file();
+    tab.changed = true;
+    vm = createComponent({
       tab,
     });
 
@@ -50,38 +67,41 @@ describe('RepoTab', () => {
 
   describe('methods', () => {
     describe('closeTab', () => {
-      it('returns undefined and does not $emit if file is changed', () => {
-        const tab = {
-          url: 'url',
-          name: 'name',
-          changed: true,
-        };
-        const vm = createComponent({
+      it('does not close tab if is changed', (done) => {
+        const tab = file();
+        tab.changed = true;
+        tab.opened = true;
+        vm = createComponent({
           tab,
         });
-
-        spyOn(RepoStore, 'removeFromOpenedFiles');
+        vm.$store.state.openFiles.push(tab);
+        vm.$store.dispatch('setFileActive', tab);
 
         vm.$el.querySelector('.close-btn').click();
 
-        expect(RepoStore.removeFromOpenedFiles).not.toHaveBeenCalled();
+        vm.$nextTick(() => {
+          expect(tab.opened).toBeTruthy();
+
+          done();
+        });
       });
 
-      it('$emits tabclosed event with file obj', () => {
-        const tab = {
-          url: 'url',
-          name: 'name',
-          changed: false,
-        };
-        const vm = createComponent({
+      it('closes tab when clicking close btn', (done) => {
+        const tab = file('lose');
+        tab.opened = true;
+        vm = createComponent({
           tab,
         });
-
-        spyOn(RepoStore, 'removeFromOpenedFiles');
+        vm.$store.state.openFiles.push(tab);
+        vm.$store.dispatch('setFileActive', tab);
 
         vm.$el.querySelector('.close-btn').click();
 
-        expect(RepoStore.removeFromOpenedFiles).toHaveBeenCalledWith(tab);
+        vm.$nextTick(() => {
+          expect(tab.opened).toBeFalsy();
+
+          done();
+        });
       });
     });
   });
diff --git a/spec/javascripts/repo/components/repo_tabs_spec.js b/spec/javascripts/repo/components/repo_tabs_spec.js
index 431129bc866..d0246cc72e6 100644
--- a/spec/javascripts/repo/components/repo_tabs_spec.js
+++ b/spec/javascripts/repo/components/repo_tabs_spec.js
@@ -1,35 +1,38 @@
 import Vue from 'vue';
-import RepoStore from '~/repo/stores/repo_store';
+import store from '~/repo/stores';
 import repoTabs from '~/repo/components/repo_tabs.vue';
+import { file, resetStore } from '../helpers';
 
 describe('RepoTabs', () => {
-  const openedFiles = [{
-    id: 0,
-    active: true,
-  }, {
-    id: 1,
-  }];
+  const openedFiles = [file(), file()];
+  let vm;
 
   function createComponent() {
     const RepoTabs = Vue.extend(repoTabs);
 
-    return new RepoTabs().$mount();
+    return new RepoTabs({
+      store,
+    }).$mount();
   }
 
   afterEach(() => {
-    RepoStore.openedFiles = [];
+    resetStore(vm.$store);
   });
 
-  it('renders a list of tabs', () => {
-    RepoStore.openedFiles = openedFiles;
+  it('renders a list of tabs', (done) => {
+    vm = createComponent();
+    openedFiles[0].active = true;
+    vm.$store.state.openFiles = openedFiles;
 
-    const vm = createComponent();
-    const tabs = [...vm.$el.querySelectorAll(':scope > li')];
+    vm.$nextTick(() => {
+      const tabs = [...vm.$el.querySelectorAll(':scope > li')];
 
-    expect(vm.$el.id).toEqual('tabs');
-    expect(tabs.length).toEqual(3);
-    expect(tabs[0].classList.contains('active')).toBeTruthy();
-    expect(tabs[1].classList.contains('active')).toBeFalsy();
-    expect(tabs[2].classList.contains('tabs-divider')).toBeTruthy();
+      expect(tabs.length).toEqual(3);
+      expect(tabs[0].classList.contains('active')).toBeTruthy();
+      expect(tabs[1].classList.contains('active')).toBeFalsy();
+      expect(tabs[2].classList.contains('tabs-divider')).toBeTruthy();
+
+      done();
+    });
   });
 });
diff --git a/spec/javascripts/repo/helpers.js b/spec/javascripts/repo/helpers.js
new file mode 100644
index 00000000000..376c291c64b
--- /dev/null
+++ b/spec/javascripts/repo/helpers.js
@@ -0,0 +1,20 @@
+import { decorateData } from '~/repo/stores/utils';
+import state from '~/repo/stores/state';
+
+export const resetStore = (store) => {
+  store.replaceState(state());
+};
+
+export const file = (name = 'name', id = name, type = '') => decorateData({
+  id,
+  type,
+  icon: 'icon',
+  url: 'url',
+  name,
+  path: name,
+  last_commit: {
+    id: '123',
+    message: 'test',
+    committed_date: new Date().toISOString(),
+  },
+});
diff --git a/spec/javascripts/repo/mock_data.js b/spec/javascripts/repo/mock_data.js
deleted file mode 100644
index 71e275caf09..00000000000
--- a/spec/javascripts/repo/mock_data.js
+++ /dev/null
@@ -1,14 +0,0 @@
-import RepoHelper from '~/repo/helpers/repo_helper';
-
-// eslint-disable-next-line import/prefer-default-export
-export const file = (name = 'name', id = name) => RepoHelper.serializeRepoEntity('blob', {
-  id,
-  icon: 'icon',
-  url: 'url',
-  name,
-  last_commit: {
-    id: '123',
-    message: 'test',
-    committed_date: new Date().toISOString(),
-  },
-});
diff --git a/spec/javascripts/repo/services/repo_service_spec.js b/spec/javascripts/repo/services/repo_service_spec.js
deleted file mode 100644
index 6f530770525..00000000000
--- a/spec/javascripts/repo/services/repo_service_spec.js
+++ /dev/null
@@ -1,171 +0,0 @@
-import axios from 'axios';
-import RepoService from '~/repo/services/repo_service';
-import RepoStore from '~/repo/stores/repo_store';
-import Api from '~/api';
-
-describe('RepoService', () => {
-  it('has default json format param', () => {
-    expect(RepoService.options.params.format).toBe('json');
-  });
-
-  describe('buildParams', () => {
-    let newParams;
-    const url = 'url';
-
-    beforeEach(() => {
-      newParams = {};
-
-      spyOn(Object, 'assign').and.returnValue(newParams);
-    });
-
-    it('clones params', () => {
-      const params = RepoService.buildParams(url);
-
-      expect(Object.assign).toHaveBeenCalledWith({}, RepoService.options.params);
-
-      expect(params).toBe(newParams);
-    });
-
-    it('sets and returns viewer params to richif urlIsRichBlob is true', () => {
-      spyOn(RepoService, 'urlIsRichBlob').and.returnValue(true);
-
-      const params = RepoService.buildParams(url);
-
-      expect(params.viewer).toEqual('rich');
-    });
-
-    it('returns params urlIsRichBlob is false', () => {
-      spyOn(RepoService, 'urlIsRichBlob').and.returnValue(false);
-
-      const params = RepoService.buildParams(url);
-
-      expect(params.viewer).toBeUndefined();
-    });
-
-    it('calls urlIsRichBlob with the objects url prop if no url arg is provided', () => {
-      spyOn(RepoService, 'urlIsRichBlob');
-      RepoService.url = url;
-
-      RepoService.buildParams();
-
-      expect(RepoService.urlIsRichBlob).toHaveBeenCalledWith(url);
-    });
-  });
-
-  describe('urlIsRichBlob', () => {
-    it('returns true for md extension', () => {
-      const isRichBlob = RepoService.urlIsRichBlob('url.md');
-
-      expect(isRichBlob).toBeTruthy();
-    });
-
-    it('returns false for js extension', () => {
-      const isRichBlob = RepoService.urlIsRichBlob('url.js');
-
-      expect(isRichBlob).toBeFalsy();
-    });
-  });
-
-  describe('getContent', () => {
-    const params = {};
-    const url = 'url';
-    const requestPromise = Promise.resolve();
-
-    beforeEach(() => {
-      spyOn(RepoService, 'buildParams').and.returnValue(params);
-      spyOn(axios, 'get').and.returnValue(requestPromise);
-    });
-
-    it('calls buildParams and axios.get', () => {
-      const request = RepoService.getContent(url);
-
-      expect(RepoService.buildParams).toHaveBeenCalledWith(url);
-      expect(axios.get).toHaveBeenCalledWith(url, {
-        params,
-      });
-      expect(request).toBe(requestPromise);
-    });
-
-    it('uses object url prop if no url arg is provided', () => {
-      RepoService.url = url;
-
-      RepoService.getContent();
-
-      expect(axios.get).toHaveBeenCalledWith(url, {
-        params,
-      });
-    });
-  });
-
-  describe('getBase64Content', () => {
-    const url = 'url';
-    const response = { data: 'data' };
-
-    beforeEach(() => {
-      spyOn(RepoService, 'bufferToBase64');
-      spyOn(axios, 'get').and.returnValue(Promise.resolve(response));
-    });
-
-    it('calls axios.get and bufferToBase64 on completion', (done) => {
-      const request = RepoService.getBase64Content(url);
-
-      expect(axios.get).toHaveBeenCalledWith(url, {
-        responseType: 'arraybuffer',
-      });
-      expect(request).toEqual(jasmine.any(Promise));
-
-      request.then(() => {
-        expect(RepoService.bufferToBase64).toHaveBeenCalledWith(response.data);
-        done();
-      }).catch(done.fail);
-    });
-  });
-
-  describe('commitFiles', () => {
-    it('calls commitMultiple and .then commitFlash', (done) => {
-      const projectId = 'projectId';
-      const payload = {};
-      RepoStore.projectId = projectId;
-
-      spyOn(Api, 'commitMultiple').and.returnValue(Promise.resolve());
-      spyOn(RepoService, 'commitFlash');
-
-      const apiPromise = RepoService.commitFiles(payload);
-
-      expect(Api.commitMultiple).toHaveBeenCalledWith(projectId, payload);
-
-      apiPromise.then(() => {
-        expect(RepoService.commitFlash).toHaveBeenCalled();
-        done();
-      }).catch(done.fail);
-    });
-  });
-
-  describe('commitFlash', () => {
-    it('calls Flash with data.message', () => {
-      const data = {
-        message: 'message',
-      };
-      spyOn(window, 'Flash');
-
-      RepoService.commitFlash(data);
-
-      expect(window.Flash).toHaveBeenCalledWith(data.message);
-    });
-
-    it('calls Flash with success string if short_id and stats', () => {
-      const data = {
-        short_id: 'short_id',
-        stats: {
-          additions: '4',
-          deletions: '5',
-        },
-      };
-      spyOn(window, 'Flash');
-
-      RepoService.commitFlash(data);
-
-      expect(window.Flash).toHaveBeenCalledWith(`Your changes have been committed. Commit ${data.short_id} with ${data.stats.additions} additions, ${data.stats.deletions} deletions.`, 'notice');
-    });
-  });
-});
diff --git a/spec/javascripts/search_autocomplete_spec.js b/spec/javascripts/search_autocomplete_spec.js
index cf811af3d6c..5e55a5d2686 100644
--- a/spec/javascripts/search_autocomplete_spec.js
+++ b/spec/javascripts/search_autocomplete_spec.js
@@ -3,7 +3,6 @@
 import '~/gl_dropdown';
 import '~/search_autocomplete';
 import '~/lib/utils/common_utils';
-import 'vendor/fuzzaldrin-plus';
 
 (function() {
   var assertLinks, dashboardIssuesPath, dashboardMRsPath, groupIssuesPath, groupMRsPath, groupName, mockDashboardOptions, mockGroupOptions, mockProjectOptions, projectIssuesPath, projectMRsPath, projectName, userId, widget;
diff --git a/spec/javascripts/sidebar/mock_data.js b/spec/javascripts/sidebar/mock_data.js
index e2b6bcabc98..0682b463043 100644
--- a/spec/javascripts/sidebar/mock_data.js
+++ b/spec/javascripts/sidebar/mock_data.js
@@ -109,12 +109,14 @@ const sidebarMockData = {
       labels: [],
       web_url: '/root/some-project/issues/5',
     },
+    '/gitlab-org/gitlab-shell/issues/5/toggle_subscription': {},
   },
 };
 
 export default {
   mediator: {
     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',
     editable: true,
diff --git a/spec/javascripts/sidebar/participants_spec.js b/spec/javascripts/sidebar/participants_spec.js
new file mode 100644
index 00000000000..30cc549c7c0
--- /dev/null
+++ b/spec/javascripts/sidebar/participants_spec.js
@@ -0,0 +1,174 @@
+import Vue from 'vue';
+import participants from '~/sidebar/components/participants/participants.vue';
+import mountComponent from '../helpers/vue_mount_component_helper';
+
+const PARTICIPANT = {
+  id: 1,
+  state: 'active',
+  username: 'marcene',
+  name: 'Allie Will',
+  web_url: 'foo.com',
+  avatar_url: 'gravatar.com/avatar/xxx',
+};
+
+const PARTICIPANT_LIST = [
+  PARTICIPANT,
+  { ...PARTICIPANT, id: 2 },
+  { ...PARTICIPANT, id: 3 },
+];
+
+describe('Participants', function () {
+  let vm;
+  let Participants;
+
+  beforeEach(() => {
+    Participants = Vue.extend(participants);
+  });
+
+  afterEach(() => {
+    vm.$destroy();
+  });
+
+  describe('collapsed sidebar state', () => {
+    it('shows loading spinner when loading', () => {
+      vm = mountComponent(Participants, {
+        loading: true,
+      });
+
+      expect(vm.$el.querySelector('.js-participants-collapsed-loading-icon')).toBeDefined();
+    });
+
+    it('shows participant count when given', () => {
+      vm = mountComponent(Participants, {
+        loading: false,
+        participants: PARTICIPANT_LIST,
+      });
+      const countEl = vm.$el.querySelector('.js-participants-collapsed-count');
+
+      expect(countEl.textContent.trim()).toBe(`${PARTICIPANT_LIST.length}`);
+    });
+
+    it('shows full participant count when there are hidden participants', () => {
+      vm = mountComponent(Participants, {
+        loading: false,
+        participants: PARTICIPANT_LIST,
+        numberOfLessParticipants: 1,
+      });
+      const countEl = vm.$el.querySelector('.js-participants-collapsed-count');
+
+      expect(countEl.textContent.trim()).toBe(`${PARTICIPANT_LIST.length}`);
+    });
+  });
+
+  describe('expanded sidebar state', () => {
+    it('shows loading spinner when loading', () => {
+      vm = mountComponent(Participants, {
+        loading: true,
+      });
+
+      expect(vm.$el.querySelector('.js-participants-expanded-loading-icon')).toBeDefined();
+    });
+
+    it('when only showing visible participants, shows an avatar only for each participant under the limit', (done) => {
+      const numberOfLessParticipants = 2;
+      vm = mountComponent(Participants, {
+        loading: false,
+        participants: PARTICIPANT_LIST,
+        numberOfLessParticipants,
+      });
+      vm.isShowingMoreParticipants = false;
+
+      Vue.nextTick()
+        .then(() => {
+          const participantEls = vm.$el.querySelectorAll('.js-participants-author');
+
+          expect(participantEls.length).toBe(numberOfLessParticipants);
+        })
+        .then(done)
+        .catch(done.fail);
+    });
+
+    it('when only showing all participants, each has an avatar', (done) => {
+      const numberOfLessParticipants = 2;
+      vm = mountComponent(Participants, {
+        loading: false,
+        participants: PARTICIPANT_LIST,
+        numberOfLessParticipants,
+      });
+      vm.isShowingMoreParticipants = true;
+
+      Vue.nextTick()
+        .then(() => {
+          const participantEls = vm.$el.querySelectorAll('.js-participants-author');
+
+          expect(participantEls.length).toBe(PARTICIPANT_LIST.length);
+        })
+        .then(done)
+        .catch(done.fail);
+    });
+
+    it('does not have more participants link when they can all be shown', () => {
+      const numberOfLessParticipants = 100;
+      vm = mountComponent(Participants, {
+        loading: false,
+        participants: PARTICIPANT_LIST,
+        numberOfLessParticipants,
+      });
+      const moreParticipantLink = vm.$el.querySelector('.js-toggle-participants-button');
+
+      expect(PARTICIPANT_LIST.length).toBeLessThan(numberOfLessParticipants);
+      expect(moreParticipantLink).toBeNull();
+    });
+
+    it('when too many participants, has more participants link to show more', (done) => {
+      vm = mountComponent(Participants, {
+        loading: false,
+        participants: PARTICIPANT_LIST,
+        numberOfLessParticipants: 2,
+      });
+      vm.isShowingMoreParticipants = false;
+
+      Vue.nextTick()
+        .then(() => {
+          const moreParticipantLink = vm.$el.querySelector('.js-toggle-participants-button');
+
+          expect(moreParticipantLink.textContent.trim()).toBe('+ 1 more');
+        })
+        .then(done)
+        .catch(done.fail);
+    });
+
+    it('when too many participants and already showing them, has more participants link to show less', (done) => {
+      vm = mountComponent(Participants, {
+        loading: false,
+        participants: PARTICIPANT_LIST,
+        numberOfLessParticipants: 2,
+      });
+      vm.isShowingMoreParticipants = true;
+
+      Vue.nextTick()
+        .then(() => {
+          const moreParticipantLink = vm.$el.querySelector('.js-toggle-participants-button');
+
+          expect(moreParticipantLink.textContent.trim()).toBe('- show less');
+        })
+        .then(done)
+        .catch(done.fail);
+    });
+
+    it('clicking more participants link emits event', () => {
+      vm = mountComponent(Participants, {
+        loading: false,
+        participants: PARTICIPANT_LIST,
+        numberOfLessParticipants: 2,
+      });
+      const moreParticipantLink = vm.$el.querySelector('.js-toggle-participants-button');
+
+      expect(vm.isShowingMoreParticipants).toBe(false);
+
+      moreParticipantLink.click();
+
+      expect(vm.isShowingMoreParticipants).toBe(true);
+    });
+  });
+});
diff --git a/spec/javascripts/sidebar/sidebar_mediator_spec.js b/spec/javascripts/sidebar/sidebar_mediator_spec.js
index 3aa8ca5db0d..7deb1fd2118 100644
--- a/spec/javascripts/sidebar/sidebar_mediator_spec.js
+++ b/spec/javascripts/sidebar/sidebar_mediator_spec.js
@@ -57,8 +57,8 @@ describe('Sidebar mediator', () => {
       .then(() => {
         expect(this.mediator.service.getProjectsAutocomplete).toHaveBeenCalledWith(searchTerm);
         expect(this.mediator.store.setAutocompleteProjects).toHaveBeenCalled();
-        done();
       })
+      .then(done)
       .catch(done.fail);
   });
 
@@ -72,8 +72,21 @@ describe('Sidebar mediator', () => {
       .then(() => {
         expect(this.mediator.service.moveIssue).toHaveBeenCalledWith(moveToProjectId);
         expect(gl.utils.visitUrl).toHaveBeenCalledWith('/root/some-project/issues/5');
-        done();
       })
+      .then(done)
+      .catch(done.fail);
+  });
+
+  it('toggle subscription', (done) => {
+    this.mediator.store.setSubscribedState(false);
+    spyOn(this.mediator.service, 'toggleSubscription').and.callThrough();
+
+    this.mediator.toggleSubscription()
+      .then(() => {
+        expect(this.mediator.service.toggleSubscription).toHaveBeenCalled();
+        expect(this.mediator.store.subscribed).toEqual(true);
+      })
+      .then(done)
       .catch(done.fail);
   });
 });
diff --git a/spec/javascripts/sidebar/sidebar_service_spec.js b/spec/javascripts/sidebar/sidebar_service_spec.js
index a4bd8ba8d88..7324d34d84a 100644
--- a/spec/javascripts/sidebar/sidebar_service_spec.js
+++ b/spec/javascripts/sidebar/sidebar_service_spec.js
@@ -7,6 +7,7 @@ describe('Sidebar service', () => {
     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',
     });
@@ -23,6 +24,7 @@ describe('Sidebar service', () => {
         expect(resp).toBeDefined();
         done();
       })
+      .then(done)
       .catch(done.fail);
   });
 
@@ -30,8 +32,8 @@ describe('Sidebar service', () => {
     this.service.update('issue[assignee_ids]', [1])
       .then((resp) => {
         expect(resp).toBeDefined();
-        done();
       })
+      .then(done)
       .catch(done.fail);
   });
 
@@ -39,8 +41,8 @@ describe('Sidebar service', () => {
     this.service.getProjectsAutocomplete()
       .then((resp) => {
         expect(resp).toBeDefined();
-        done();
       })
+      .then(done)
       .catch(done.fail);
   });
 
@@ -48,8 +50,17 @@ describe('Sidebar service', () => {
     this.service.moveIssue(123)
       .then((resp) => {
         expect(resp).toBeDefined();
-        done();
       })
+      .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/sidebar/sidebar_store_spec.js b/spec/javascripts/sidebar/sidebar_store_spec.js
index 69eb3839d67..51dee64fb93 100644
--- a/spec/javascripts/sidebar/sidebar_store_spec.js
+++ b/spec/javascripts/sidebar/sidebar_store_spec.js
@@ -2,21 +2,36 @@ import SidebarStore from '~/sidebar/stores/sidebar_store';
 import Mock from './mock_data';
 import UsersMockHelper from '../helpers/user_mock_data_helper';
 
-describe('Sidebar store', () => {
-  const assignee = {
-    id: 2,
-    name: 'gitlab user 2',
-    username: 'gitlab2',
-    avatar_url: 'http://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80&d=identicon',
-  };
-
-  const anotherAssignee = {
-    id: 3,
-    name: 'gitlab user 3',
-    username: 'gitlab3',
-    avatar_url: 'http://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80&d=identicon',
-  };
+const ASSIGNEE = {
+  id: 2,
+  name: 'gitlab user 2',
+  username: 'gitlab2',
+  avatar_url: 'http://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80&d=identicon',
+};
+
+const ANOTHER_ASSINEE = {
+  id: 3,
+  name: 'gitlab user 3',
+  username: 'gitlab3',
+  avatar_url: 'http://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80&d=identicon',
+};
+
+const PARTICIPANT = {
+  id: 1,
+  state: 'active',
+  username: 'marcene',
+  name: 'Allie Will',
+  web_url: 'foo.com',
+  avatar_url: 'gravatar.com/avatar/xxx',
+};
+
+const PARTICIPANT_LIST = [
+  PARTICIPANT,
+  { ...PARTICIPANT, id: 2 },
+  { ...PARTICIPANT, id: 3 },
+];
 
+describe('Sidebar store', () => {
   beforeEach(() => {
     this.store = new SidebarStore({
       currentUser: {
@@ -40,23 +55,23 @@ describe('Sidebar store', () => {
   });
 
   it('adds a new assignee', () => {
-    this.store.addAssignee(assignee);
+    this.store.addAssignee(ASSIGNEE);
     expect(this.store.assignees.length).toEqual(1);
   });
 
   it('removes an assignee', () => {
-    this.store.removeAssignee(assignee);
+    this.store.removeAssignee(ASSIGNEE);
     expect(this.store.assignees.length).toEqual(0);
   });
 
   it('finds an existent assignee', () => {
     let foundAssignee;
 
-    this.store.addAssignee(assignee);
-    foundAssignee = this.store.findAssignee(assignee);
+    this.store.addAssignee(ASSIGNEE);
+    foundAssignee = this.store.findAssignee(ASSIGNEE);
     expect(foundAssignee).toBeDefined();
-    expect(foundAssignee).toEqual(assignee);
-    foundAssignee = this.store.findAssignee(anotherAssignee);
+    expect(foundAssignee).toEqual(ASSIGNEE);
+    foundAssignee = this.store.findAssignee(ANOTHER_ASSINEE);
     expect(foundAssignee).toBeUndefined();
   });
 
@@ -65,6 +80,28 @@ describe('Sidebar store', () => {
     expect(this.store.assignees.length).toEqual(0);
   });
 
+  it('sets participants data', () => {
+    expect(this.store.participants.length).toEqual(0);
+
+    this.store.setParticipantsData({
+      participants: PARTICIPANT_LIST,
+    });
+
+    expect(this.store.isFetching.participants).toEqual(false);
+    expect(this.store.participants.length).toEqual(PARTICIPANT_LIST.length);
+  });
+
+  it('sets subcriptions data', () => {
+    expect(this.store.subscribed).toEqual(null);
+
+    this.store.setSubscriptionsData({
+      subscribed: true,
+    });
+
+    expect(this.store.isFetching.subscriptions).toEqual(false);
+    expect(this.store.subscribed).toEqual(true);
+  });
+
   it('set assigned data', () => {
     const users = {
       assignees: UsersMockHelper.createNumberRandomUsers(3),
@@ -75,6 +112,14 @@ describe('Sidebar store', () => {
     expect(this.store.assignees.length).toEqual(3);
   });
 
+  it('sets fetching state', () => {
+    expect(this.store.isFetching.participants).toEqual(true);
+
+    this.store.setFetchingState('participants', false);
+
+    expect(this.store.isFetching.participants).toEqual(false);
+  });
+
   it('set time tracking data', () => {
     this.store.setTimeTrackingData(Mock.time);
     expect(this.store.timeEstimate).toEqual(Mock.time.time_estimate);
@@ -90,6 +135,14 @@ describe('Sidebar store', () => {
     expect(this.store.autocompleteProjects).toEqual(projects);
   });
 
+  it('sets subscribed state', () => {
+    expect(this.store.subscribed).toEqual(null);
+
+    this.store.setSubscribedState(true);
+
+    expect(this.store.subscribed).toEqual(true);
+  });
+
   it('set move to project ID', () => {
     const projectId = 7;
     this.store.setMoveToProjectId(projectId);
diff --git a/spec/javascripts/sidebar/sidebar_subscriptions_spec.js b/spec/javascripts/sidebar/sidebar_subscriptions_spec.js
new file mode 100644
index 00000000000..7adf22b0f1f
--- /dev/null
+++ b/spec/javascripts/sidebar/sidebar_subscriptions_spec.js
@@ -0,0 +1,36 @@
+import Vue from 'vue';
+import sidebarSubscriptions from '~/sidebar/components/subscriptions/sidebar_subscriptions.vue';
+import SidebarMediator from '~/sidebar/sidebar_mediator';
+import SidebarService from '~/sidebar/services/sidebar_service';
+import SidebarStore from '~/sidebar/stores/sidebar_store';
+import eventHub from '~/sidebar/event_hub';
+import mountComponent from '../helpers/vue_mount_component_helper';
+import Mock from './mock_data';
+
+describe('Sidebar Subscriptions', function () {
+  let vm;
+  let SidebarSubscriptions;
+
+  beforeEach(() => {
+    SidebarSubscriptions = Vue.extend(sidebarSubscriptions);
+    // Setup the stores, services, etc
+    // eslint-disable-next-line no-new
+    new SidebarMediator(Mock.mediator);
+  });
+
+  afterEach(() => {
+    vm.$destroy();
+    SidebarService.singleton = null;
+    SidebarStore.singleton = null;
+    SidebarMediator.singleton = null;
+  });
+
+  it('calls the mediator toggleSubscription on event', () => {
+    spyOn(SidebarMediator.prototype, 'toggleSubscription').and.returnValue(Promise.resolve());
+    vm = mountComponent(SidebarSubscriptions, {});
+
+    eventHub.$emit('toggleSubscription');
+
+    expect(SidebarMediator.prototype.toggleSubscription).toHaveBeenCalled();
+  });
+});
diff --git a/spec/javascripts/sidebar/subscriptions_spec.js b/spec/javascripts/sidebar/subscriptions_spec.js
new file mode 100644
index 00000000000..9b33dd02fb9
--- /dev/null
+++ b/spec/javascripts/sidebar/subscriptions_spec.js
@@ -0,0 +1,42 @@
+import Vue from 'vue';
+import subscriptions from '~/sidebar/components/subscriptions/subscriptions.vue';
+import mountComponent from '../helpers/vue_mount_component_helper';
+
+describe('Subscriptions', function () {
+  let vm;
+  let Subscriptions;
+
+  beforeEach(() => {
+    Subscriptions = Vue.extend(subscriptions);
+  });
+
+  afterEach(() => {
+    vm.$destroy();
+  });
+
+  it('shows loading spinner when loading', () => {
+    vm = mountComponent(Subscriptions, {
+      loading: true,
+      subscribed: undefined,
+    });
+
+    expect(vm.$refs.loadingButton.loading).toBe(true);
+    expect(vm.$refs.loadingButton.label).toBeUndefined();
+  });
+
+  it('has "Subscribe" text when currently not subscribed', () => {
+    vm = mountComponent(Subscriptions, {
+      subscribed: false,
+    });
+
+    expect(vm.$refs.loadingButton.label).toBe('Subscribe');
+  });
+
+  it('has "Unsubscribe" text when currently not subscribed', () => {
+    vm = mountComponent(Subscriptions, {
+      subscribed: true,
+    });
+
+    expect(vm.$refs.loadingButton.label).toBe('Unsubscribe');
+  });
+});
diff --git a/spec/javascripts/vue_mr_widget/components/states/mr_widget_ready_to_merge_spec.js b/spec/javascripts/vue_mr_widget/components/states/mr_widget_ready_to_merge_spec.js
index d7019ea408b..df3d29ee1f9 100644
--- a/spec/javascripts/vue_mr_widget/components/states/mr_widget_ready_to_merge_spec.js
+++ b/spec/javascripts/vue_mr_widget/components/states/mr_widget_ready_to_merge_spec.js
@@ -43,6 +43,10 @@ describe('MRWidgetReadyToMerge', () => {
     vm = createComponent();
   });
 
+  afterEach(() => {
+    vm.$destroy();
+  });
+
   describe('props', () => {
     it('should have props', () => {
       const { mr, service } = readyToMergeComponent.props;
@@ -495,6 +499,48 @@ describe('MRWidgetReadyToMerge', () => {
     });
   });
 
+  describe('Merge controls', () => {
+    describe('when allowed to merge', () => {
+      beforeEach(() => {
+        vm = createComponent({
+          mr: { isMergeAllowed: true },
+        });
+      });
+
+      it('shows remove source branch checkbox', () => {
+        expect(vm.$el.querySelector('.js-remove-source-branch-checkbox')).toBeDefined();
+      });
+
+      it('shows modify commit message button', () => {
+        expect(vm.$el.querySelector('.js-modify-commit-message-button')).toBeDefined();
+      });
+
+      it('does not show message about needing to resolve items', () => {
+        expect(vm.$el.querySelector('.js-resolve-mr-widget-items-message')).toBeNull();
+      });
+    });
+
+    describe('when not allowed to merge', () => {
+      beforeEach(() => {
+        vm = createComponent({
+          mr: { isMergeAllowed: false },
+        });
+      });
+
+      it('does not show remove source branch checkbox', () => {
+        expect(vm.$el.querySelector('.js-remove-source-branch-checkbox')).toBeNull();
+      });
+
+      it('does not show  modify commit message button', () => {
+        expect(vm.$el.querySelector('.js-modify-commit-message-button')).toBeNull();
+      });
+
+      it('shows message to resolve all items before being allowed to merge', () => {
+        expect(vm.$el.querySelector('.js-resolve-mr-widget-items-message')).toBeDefined();
+      });
+    });
+  });
+
   describe('Commit message area', () => {
     it('when using merge commits, should show "Modify commit message" button', () => {
       const customVm = createComponent({
diff --git a/spec/javascripts/notes/components/issue_placeholder_note_spec.js b/spec/javascripts/vue_shared/components/notes/placeholder_note_spec.js
index 6e5275087f3..ba8ab0b2cd7 100644
--- a/spec/javascripts/notes/components/issue_placeholder_note_spec.js
+++ b/spec/javascripts/vue_shared/components/notes/placeholder_note_spec.js
@@ -1,7 +1,7 @@
 import Vue from 'vue';
-import issuePlaceholderNote from '~/notes/components/issue_placeholder_note.vue';
+import issuePlaceholderNote from '~/vue_shared/components/notes/placeholder_note.vue';
 import store from '~/notes/stores';
-import { userDataMock } from '../mock_data';
+import { userDataMock } from '../../../notes/mock_data';
 
 describe('issue placeholder system note component', () => {
   let vm;
diff --git a/spec/javascripts/vue_shared/components/notes/placeholder_system_note_spec.js b/spec/javascripts/vue_shared/components/notes/placeholder_system_note_spec.js
new file mode 100644
index 00000000000..7b8e6c330c2
--- /dev/null
+++ b/spec/javascripts/vue_shared/components/notes/placeholder_system_note_spec.js
@@ -0,0 +1,25 @@
+import Vue from 'vue';
+import placeholderSystemNote from '~/vue_shared/components/notes/placeholder_system_note.vue';
+import mountComponent from '../../../helpers/vue_mount_component_helper';
+
+describe('placeholder system note component', () => {
+  let PlaceholderSystemNote;
+  let vm;
+
+  beforeEach(() => {
+    PlaceholderSystemNote = Vue.extend(placeholderSystemNote);
+  });
+
+  afterEach(() => {
+    vm.$destroy();
+  });
+
+  it('should render system note placeholder with plain text', () => {
+    vm = mountComponent(PlaceholderSystemNote, {
+      note: { body: 'This is a placeholder' },
+    });
+
+    expect(vm.$el.tagName).toEqual('LI');
+    expect(vm.$el.querySelector('.timeline-content em').textContent.trim()).toEqual('This is a placeholder');
+  });
+});
diff --git a/spec/javascripts/notes/components/issue_system_note_spec.js b/spec/javascripts/vue_shared/components/notes/system_note_spec.js
index c317ce32716..36aaf0a6c2e 100644
--- a/spec/javascripts/notes/components/issue_system_note_spec.js
+++ b/spec/javascripts/vue_shared/components/notes/system_note_spec.js
@@ -1,5 +1,5 @@
 import Vue from 'vue';
-import issueSystemNote from '~/notes/components/issue_system_note.vue';
+import issueSystemNote from '~/vue_shared/components/notes/system_note.vue';
 import store from '~/notes/stores';
 
 describe('issue system note', () => {
@@ -33,6 +33,10 @@ describe('issue system note', () => {
     }).$mount();
   });
 
+  afterEach(() => {
+    vm.$destroy();
+  });
+
   it('should render a list item with correct id', () => {
     expect(vm.$el.getAttribute('id')).toEqual(`note_${props.note.id}`);
   });
diff --git a/spec/javascripts/vue_shared/components/user_avatar/user_avatar_link_spec.js b/spec/javascripts/vue_shared/components/user_avatar/user_avatar_link_spec.js
index 52e450e9ba5..8450ad9dbcb 100644
--- a/spec/javascripts/vue_shared/components/user_avatar/user_avatar_link_spec.js
+++ b/spec/javascripts/vue_shared/components/user_avatar/user_avatar_link_spec.js
@@ -11,6 +11,7 @@ describe('User Avatar Link Component', function () {
       imgCssClasses: 'myextraavatarclass',
       tooltipText: 'tooltip text',
       tooltipPlacement: 'bottom',
+      username: 'username',
     };
 
     const UserAvatarLinkComponent = Vue.extend(UserAvatarLink);
@@ -47,4 +48,42 @@ describe('User Avatar Link Component', function () {
       expect(this.userAvatarLink[key]).toBeDefined();
     });
   });
+
+  describe('no username', function () {
+    beforeEach(function (done) {
+      this.userAvatarLink.username = '';
+
+      Vue.nextTick(done);
+    });
+
+    it('should only render image tag in link', function () {
+      const childElements = this.userAvatarLink.$el.childNodes;
+      expect(childElements[0].tagName).toBe('IMG');
+
+      // Vue will render the hidden component as <!---->
+      expect(childElements[1].tagName).toBeUndefined();
+    });
+
+    it('should render avatar image tooltip', function () {
+      expect(this.userAvatarLink.$el.querySelector('img').dataset.originalTitle).toEqual(this.propsData.tooltipText);
+    });
+  });
+
+  describe('username', function () {
+    it('should not render avatar image tooltip', function () {
+      expect(this.userAvatarLink.$el.querySelector('img').dataset.originalTitle).toEqual('');
+    });
+
+    it('should render username prop in <span>', function () {
+      expect(this.userAvatarLink.$el.querySelector('span').innerText.trim()).toEqual(this.propsData.username);
+    });
+
+    it('should render text tooltip for <span>', function () {
+      expect(this.userAvatarLink.$el.querySelector('span').dataset.originalTitle).toEqual(this.propsData.tooltipText);
+    });
+
+    it('should render text tooltip placement for <span>', function () {
+      expect(this.userAvatarLink.$el.querySelector('span').getAttribute('tooltip-placement')).toEqual(this.propsData.tooltipPlacement);
+    });
+  });
 });
diff --git a/spec/lib/additional_email_headers_interceptor_spec.rb b/spec/lib/additional_email_headers_interceptor_spec.rb
index 580450eef1e..b5c1a360ba9 100644
--- a/spec/lib/additional_email_headers_interceptor_spec.rb
+++ b/spec/lib/additional_email_headers_interceptor_spec.rb
@@ -1,12 +1,29 @@
 require 'spec_helper'
 
 describe AdditionalEmailHeadersInterceptor do
-  it 'adds Auto-Submitted header' do
-    mail = ActionMailer::Base.mail(to: 'test@mail.com', from: 'info@mail.com', body: 'hello').deliver
+  let(:mail) do
+    ActionMailer::Base.mail(to: 'test@mail.com', from: 'info@mail.com', body: 'hello')
+  end
+
+  before do
+    mail.deliver_now
+  end
 
+  it 'adds Auto-Submitted header' do
     expect(mail.header['To'].value).to eq('test@mail.com')
     expect(mail.header['From'].value).to eq('info@mail.com')
     expect(mail.header['Auto-Submitted'].value).to eq('auto-generated')
     expect(mail.header['X-Auto-Response-Suppress'].value).to eq('All')
   end
+
+  context 'when the same mail object is sent twice' do
+    before do
+      mail.deliver_now
+    end
+
+    it 'does not add the Auto-Submitted header twice' do
+      expect(mail.header['Auto-Submitted'].value).to eq('auto-generated')
+      expect(mail.header['X-Auto-Response-Suppress'].value).to eq('All')
+    end
+  end
 end
diff --git a/spec/lib/banzai/filter/gollum_tags_filter_spec.rb b/spec/lib/banzai/filter/gollum_tags_filter_spec.rb
index 97d612e6347..ca76d6f0881 100644
--- a/spec/lib/banzai/filter/gollum_tags_filter_spec.rb
+++ b/spec/lib/banzai/filter/gollum_tags_filter_spec.rb
@@ -15,9 +15,13 @@ describe Banzai::Filter::GollumTagsFilter do
 
   context 'linking internal images' do
     it 'creates img tag if image exists' do
-      file = Gollum::File.new(project_wiki.wiki)
-      expect(file).to receive(:path).and_return('images/image.jpg')
-      expect(project_wiki).to receive(:find_file).with('images/image.jpg').and_return(file)
+      gollum_file_double = double('Gollum::File',
+                                  mime_type: 'image/jpeg',
+                                  name: 'images/image.jpg',
+                                  path: 'images/image.jpg',
+                                  raw_data: '')
+      wiki_file = Gitlab::Git::WikiFile.new(gollum_file_double)
+      expect(project_wiki).to receive(:find_file).with('images/image.jpg').and_return(wiki_file)
 
       tag = '[[images/image.jpg]]'
       doc = filter("See #{tag}", project_wiki: project_wiki)
diff --git a/spec/lib/gitlab/app_logger_spec.rb b/spec/lib/gitlab/app_logger_spec.rb
new file mode 100644
index 00000000000..c86d30ce6df
--- /dev/null
+++ b/spec/lib/gitlab/app_logger_spec.rb
@@ -0,0 +1,12 @@
+require 'spec_helper'
+
+describe Gitlab::AppLogger, :request_store do
+  subject { described_class }
+
+  it 'builds a logger once' do
+    expect(::Logger).to receive(:new).and_call_original
+
+    subject.info('hello world')
+    subject.error('hello again')
+  end
+end
diff --git a/spec/lib/gitlab/database_spec.rb b/spec/lib/gitlab/database_spec.rb
index 5fa94999d25..7aeb85b8f5a 100644
--- a/spec/lib/gitlab/database_spec.rb
+++ b/spec/lib/gitlab/database_spec.rb
@@ -256,4 +256,26 @@ describe Gitlab::Database do
       expect(described_class.false_value).to eq 0
     end
   end
+
+  describe '#sanitize_timestamp' do
+    let(:max_timestamp) { Time.at((1 << 31) - 1) }
+
+    subject { described_class.sanitize_timestamp(timestamp) }
+
+    context 'with a timestamp smaller than MAX_TIMESTAMP_VALUE' do
+      let(:timestamp) { max_timestamp - 10.years }
+
+      it 'returns the given timestamp' do
+        expect(subject).to eq(timestamp)
+      end
+    end
+
+    context 'with a timestamp larger than MAX_TIMESTAMP_VALUE' do
+      let(:timestamp) { max_timestamp + 1.second }
+
+      it 'returns MAX_TIMESTAMP_VALUE' do
+        expect(subject).to eq(max_timestamp)
+      end
+    end
+  end
 end
diff --git a/spec/lib/gitlab/diff/position_spec.rb b/spec/lib/gitlab/diff/position_spec.rb
index 245f24e96d4..677eb373d22 100644
--- a/spec/lib/gitlab/diff/position_spec.rb
+++ b/spec/lib/gitlab/diff/position_spec.rb
@@ -364,6 +364,43 @@ describe Gitlab::Diff::Position do
     end
   end
 
+  describe "position for a missing ref" do
+    let(:diff_refs) do
+      Gitlab::Diff::DiffRefs.new(
+        base_sha: "not_existing_sha",
+        head_sha: "existing_sha"
+      )
+    end
+
+    subject do
+      described_class.new(
+        old_path: "files/ruby/feature.rb",
+        new_path: "files/ruby/feature.rb",
+        old_line: 3,
+        new_line: nil,
+        diff_refs: diff_refs
+      )
+    end
+
+    describe "#diff_file" do
+      it "does not raise exception" do
+        expect { subject.diff_file(project.repository) }.not_to raise_error
+      end
+    end
+
+    describe "#diff_line" do
+      it "does not raise exception" do
+        expect { subject.diff_line(project.repository) }.not_to raise_error
+      end
+    end
+
+    describe "#line_code" do
+      it "does not raise exception" do
+        expect { subject.line_code(project.repository) }.not_to raise_error
+      end
+    end
+  end
+
   describe "position for a file in the initial commit" do
     let(:commit) { project.commit("1a0b36b3cdad1d2ee32457c102a8c0b7056fa863") }
 
diff --git a/spec/lib/gitlab/git/branch_spec.rb b/spec/lib/gitlab/git/branch_spec.rb
index 318a7b7a332..708870060e7 100644
--- a/spec/lib/gitlab/git/branch_spec.rb
+++ b/spec/lib/gitlab/git/branch_spec.rb
@@ -7,6 +7,38 @@ describe Gitlab::Git::Branch, seed_helper: true do
 
   it { is_expected.to be_kind_of Array }
 
+  describe '.find' do
+    subject { described_class.find(repository, branch) }
+
+    before do
+      allow(repository).to receive(:find_branch).with(branch)
+        .and_call_original
+    end
+
+    context 'when finding branch via branch name' do
+      let(:branch) { 'master' }
+
+      it 'returns a branch object' do
+        expect(subject).to be_a(described_class)
+        expect(subject.name).to eq(branch)
+
+        expect(repository).to have_received(:find_branch).with(branch)
+      end
+    end
+
+    context 'when the branch is already a branch' do
+      let(:commit) { repository.commit('master') }
+      let(:branch) { described_class.new(repository, 'master', commit.sha, commit) }
+
+      it 'returns a branch object' do
+        expect(subject).to be_a(described_class)
+        expect(subject).to eq(branch)
+
+        expect(repository).not_to have_received(:find_branch).with(branch)
+      end
+    end
+  end
+
   describe '#size' do
     subject { super().size }
     it { is_expected.to eq(SeedRepo::Repo::BRANCHES.size) }
diff --git a/spec/lib/gitlab/git/hooks_service_spec.rb b/spec/lib/gitlab/git/hooks_service_spec.rb
index 51e4e3fdad1..3ed3feb4c74 100644
--- a/spec/lib/gitlab/git/hooks_service_spec.rb
+++ b/spec/lib/gitlab/git/hooks_service_spec.rb
@@ -1,24 +1,26 @@
 require 'spec_helper'
 
 describe Gitlab::Git::HooksService, seed_helper: true do
-  let(:user) { Gitlab::Git::User.new('janedoe', 'Jane Doe', 'janedoe@example.com', 'user-456') }
+  let(:gl_id) { 'user-456' }
+  let(:gl_username) { 'janedoe' }
+  let(:user) { Gitlab::Git::User.new(gl_username, 'Jane Doe', 'janedoe@example.com', gl_id) }
   let(:repository) { Gitlab::Git::Repository.new('default', TEST_REPO_PATH, 'project-123') }
   let(:service) { described_class.new }
-
-  before do
-    @blankrev = Gitlab::Git::BLANK_SHA
-    @oldrev = SeedRepo::Commit::PARENT_ID
-    @newrev = SeedRepo::Commit::ID
-    @ref = 'refs/heads/feature'
-  end
+  let(:blankrev) { Gitlab::Git::BLANK_SHA }
+  let(:oldrev) { SeedRepo::Commit::PARENT_ID }
+  let(:newrev) { SeedRepo::Commit::ID }
+  let(:ref) { 'refs/heads/feature' }
 
   describe '#execute' do
     context 'when receive hooks were successful' do
-      it 'calls post-receive hook' do
-        hook = double(trigger: [true, nil])
+      let(:hook) { double(:hook) }
+
+      it 'calls all three hooks' do
         expect(Gitlab::Git::Hook).to receive(:new).exactly(3).times.and_return(hook)
+        expect(hook).to receive(:trigger).with(gl_id, gl_username, blankrev, newrev, ref)
+          .exactly(3).times.and_return([true, nil])
 
-        service.execute(user, repository, @blankrev, @newrev, @ref) { }
+        service.execute(user, repository, blankrev, newrev, ref) { }
       end
     end
 
@@ -28,7 +30,7 @@ describe Gitlab::Git::HooksService, seed_helper: true do
         expect(service).not_to receive(:run_hook).with('post-receive')
 
         expect do
-          service.execute(user, repository, @blankrev, @newrev, @ref)
+          service.execute(user, repository, blankrev, newrev, ref)
         end.to raise_error(Gitlab::Git::HooksService::PreReceiveError)
       end
     end
@@ -40,7 +42,7 @@ describe Gitlab::Git::HooksService, seed_helper: true do
         expect(service).not_to receive(:run_hook).with('post-receive')
 
         expect do
-          service.execute(user, repository, @blankrev, @newrev, @ref)
+          service.execute(user, repository, blankrev, newrev, ref)
         end.to raise_error(Gitlab::Git::HooksService::PreReceiveError)
       end
     end
diff --git a/spec/lib/gitlab/git/repository_spec.rb b/spec/lib/gitlab/git/repository_spec.rb
index b2d2f770e3d..b161d25b96c 100644
--- a/spec/lib/gitlab/git/repository_spec.rb
+++ b/spec/lib/gitlab/git/repository_spec.rb
@@ -1135,6 +1135,32 @@ describe Gitlab::Git::Repository, seed_helper: true do
     end
   end
 
+  describe '#merged_branch_names' do
+    context 'when branch names are passed' do
+      it 'only returns the names we are asking' do
+        names = repository.merged_branch_names(%w[merge-test])
+
+        expect(names).to contain_exactly('merge-test')
+      end
+
+      it 'does not return unmerged branch names' do
+        names = repository.merged_branch_names(%w[feature])
+
+        expect(names).to be_empty
+      end
+    end
+
+    context 'when no branch names are specified' do
+      it 'returns all merged branch names' do
+        names = repository.merged_branch_names
+
+        expect(names).to include('merge-test')
+        expect(names).to include('fix-mode')
+        expect(names).not_to include('feature')
+      end
+    end
+  end
+
   describe "#ls_files" do
     let(:master_file_paths) { repository.ls_files("master") }
     let(:not_existed_branch) { repository.ls_files("not_existed_branch") }
@@ -1564,6 +1590,60 @@ describe Gitlab::Git::Repository, seed_helper: true do
     end
   end
 
+  describe '#ff_merge' do
+    let(:repository) do
+      Gitlab::Git::Repository.new('default', TEST_MUTABLE_REPO_PATH, '')
+    end
+    let(:branch_head) { '6d394385cf567f80a8fd85055db1ab4c5295806f' }
+    let(:source_sha) { 'cfe32cf61b73a0d5e9f13e774abde7ff789b1660' }
+    let(:user) { build(:user) }
+    let(:target_branch) { 'test-ff-target-branch' }
+
+    before do
+      repository.create_branch(target_branch, branch_head)
+    end
+
+    after do
+      ensure_seeds
+    end
+
+    subject { repository.ff_merge(user, source_sha, target_branch) }
+
+    it 'performs a ff_merge' do
+      expect(subject.newrev).to eq(source_sha)
+      expect(subject.repo_created).to be(false)
+      expect(subject.branch_created).to be(false)
+
+      expect(repository.commit(target_branch).id).to eq(source_sha)
+    end
+
+    context 'with a non-existing target branch' do
+      subject { repository.ff_merge(user, source_sha, 'this-isnt-real') }
+
+      it 'throws an ArgumentError' do
+        expect { subject }.to raise_error(ArgumentError)
+      end
+    end
+
+    context 'with a non-existing source commit' do
+      let(:source_sha) { 'f001' }
+
+      it 'throws an ArgumentError' do
+        expect { subject }.to raise_error(ArgumentError)
+      end
+    end
+
+    context 'when the source sha is not a descendant of the branch head' do
+      let(:source_sha) { '1a0b36b3cdad1d2ee32457c102a8c0b7056fa863' }
+
+      it "doesn't perform the ff_merge" do
+        expect { subject }.to raise_error(Gitlab::Git::CommitError)
+
+        expect(repository.commit(target_branch).id).to eq(branch_head)
+      end
+    end
+  end
+
   def create_remote_branch(repository, remote_name, branch_name, source_branch_name)
     source_branch = repository.branches.find { |branch| branch.name == source_branch_name }
     rugged = repository.rugged
diff --git a/spec/lib/gitlab/git/storage/circuit_breaker_spec.rb b/spec/lib/gitlab/git/storage/circuit_breaker_spec.rb
index c8d532df059..72dabca793a 100644
--- a/spec/lib/gitlab/git/storage/circuit_breaker_spec.rb
+++ b/spec/lib/gitlab/git/storage/circuit_breaker_spec.rb
@@ -79,7 +79,9 @@ describe Gitlab::Git::Storage::CircuitBreaker, clean_gitlab_redis_shared_state:
       stub_application_setting(circuitbreaker_failure_count_threshold: 0,
                                circuitbreaker_failure_wait_time: 1,
                                circuitbreaker_failure_reset_time: 2,
-                               circuitbreaker_storage_timeout: 3)
+                               circuitbreaker_storage_timeout: 3,
+                               circuitbreaker_access_retries: 4,
+                               circuitbreaker_backoff_threshold: 5)
     end
 
     describe '#failure_count_threshold' do
@@ -105,14 +107,43 @@ describe Gitlab::Git::Storage::CircuitBreaker, clean_gitlab_redis_shared_state:
         expect(circuit_breaker.storage_timeout).to eq(3)
       end
     end
+
+    describe '#access_retries' do
+      it 'reads the value from settings' do
+        expect(circuit_breaker.access_retries).to eq(4)
+      end
+    end
+
+    describe '#backoff_threshold' do
+      it 'reads the value from settings' do
+        expect(circuit_breaker.backoff_threshold).to eq(5)
+      end
+    end
   end
 
   describe '#perform' do
-    it 'raises an exception with retry time when the circuit is open' do
-      allow(circuit_breaker).to receive(:circuit_broken?).and_return(true)
+    it 'raises the correct exception when the circuit is open' do
+      set_in_redis(:last_failure, 1.day.ago.to_f)
+      set_in_redis(:failure_count, 999)
 
       expect { |b| circuit_breaker.perform(&b) }
-        .to raise_error(Gitlab::Git::Storage::CircuitOpen)
+        .to raise_error do |exception|
+        expect(exception).to be_kind_of(Gitlab::Git::Storage::CircuitOpen)
+        expect(exception.retry_after).to eq(1800)
+      end
+    end
+
+    it 'raises the correct exception when backing off' do
+      Timecop.freeze do
+        set_in_redis(:last_failure, 1.second.ago.to_f)
+        set_in_redis(:failure_count, 90)
+
+        expect { |b| circuit_breaker.perform(&b) }
+          .to raise_error do |exception|
+          expect(exception).to be_kind_of(Gitlab::Git::Storage::Failing)
+          expect(exception.retry_after).to eq(30)
+        end
+      end
     end
 
     it 'yields the block' do
@@ -122,6 +153,7 @@ describe Gitlab::Git::Storage::CircuitBreaker, clean_gitlab_redis_shared_state:
 
     it 'checks if the storage is available' do
       expect(circuit_breaker).to receive(:check_storage_accessible!)
+                                   .and_call_original
 
       circuit_breaker.perform { 'hello world' }
     end
@@ -137,201 +169,124 @@ describe Gitlab::Git::Storage::CircuitBreaker, clean_gitlab_redis_shared_state:
         .to raise_error(Rugged::OSError)
     end
 
-    context 'with the feature disabled' do
-      it 'returns the block without checking accessibility' do
-        stub_feature_flags(git_storage_circuit_breaker: false)
-
-        expect(circuit_breaker).not_to receive(:circuit_broken?)
+    it 'tracks that the storage was accessible' do
+      set_in_redis(:failure_count, 10)
+      set_in_redis(:last_failure, Time.now.to_f)
 
-        result = circuit_breaker.perform { 'hello' }
+      circuit_breaker.perform { '' }
 
-        expect(result).to eq('hello')
-      end
+      expect(value_from_redis(:failure_count).to_i).to eq(0)
+      expect(value_from_redis(:last_failure)).to be_empty
+      expect(circuit_breaker.failure_count).to eq(0)
+      expect(circuit_breaker.last_failure).to be_nil
     end
-  end
 
-  describe '#circuit_broken?' do
-    it 'is working when there is no last failure' do
-      set_in_redis(:last_failure, nil)
-      set_in_redis(:failure_count, 0)
+    it 'only performs the accessibility check once' do
+      expect(Gitlab::Git::Storage::ForkedStorageCheck)
+        .to receive(:storage_available?).once.and_call_original
 
-      expect(circuit_breaker.circuit_broken?).to be_falsey
+      2.times { circuit_breaker.perform { '' } }
     end
 
-    it 'is broken when there was a recent failure' do
-      Timecop.freeze do
-        set_in_redis(:last_failure, 1.second.ago.to_f)
-        set_in_redis(:failure_count, 1)
+    it 'calls the check with the correct arguments' do
+      stub_application_setting(circuitbreaker_storage_timeout: 30,
+                               circuitbreaker_access_retries: 3)
 
-        expect(circuit_breaker.circuit_broken?).to be_truthy
-      end
-    end
+      expect(Gitlab::Git::Storage::ForkedStorageCheck)
+        .to receive(:storage_available?).with(TestEnv.repos_path, 30, 3)
+              .and_call_original
 
-    it 'is broken when there are too many failures' do
-      set_in_redis(:last_failure, 1.day.ago.to_f)
-      set_in_redis(:failure_count, 200)
-
-      expect(circuit_breaker.circuit_broken?).to be_truthy
+      circuit_breaker.perform { '' }
     end
 
-    context 'the `failure_wait_time` is set to 0' do
+    context 'with the feature disabled' do
       before do
-        stub_application_setting(circuitbreaker_failure_wait_time: 0)
-      end
-
-      it 'is working even when there is a recent failure' do
-        Timecop.freeze do
-          set_in_redis(:last_failure, 0.seconds.ago.to_f)
-          set_in_redis(:failure_count, 1)
-
-          expect(circuit_breaker.circuit_broken?).to be_falsey
-        end
+        stub_feature_flags(git_storage_circuit_breaker: false)
       end
-    end
-  end
 
-  describe "storage_available?" do
-    context 'the storage is available' do
-      it 'tracks that the storage was accessible an raises the error' do
-        expect(circuit_breaker).to receive(:track_storage_accessible)
-
-        circuit_breaker.storage_available?
-      end
+      it 'returns the block without checking accessibility' do
+        expect(circuit_breaker).not_to receive(:check_storage_accessible!)
 
-      it 'only performs the check once' do
-        expect(Gitlab::Git::Storage::ForkedStorageCheck)
-          .to receive(:storage_available?).once.and_call_original
+        result = circuit_breaker.perform { 'hello' }
 
-        2.times { circuit_breaker.storage_available? }
+        expect(result).to eq('hello')
       end
-    end
-
-    context 'storage is not available' do
-      let(:storage_name) { 'broken' }
-
-      it 'tracks that the storage was inaccessible' do
-        expect(circuit_breaker).to receive(:track_storage_inaccessible)
 
-        circuit_breaker.storage_available?
-      end
-    end
-  end
+      it 'allows enabling the feature using an ENV var' do
+        stub_env('GIT_STORAGE_CIRCUIT_BREAKER', 'true')
+        expect(circuit_breaker).to receive(:check_storage_accessible!)
 
-  describe '#check_storage_accessible!' do
-    it 'raises an exception with retry time when the circuit is open' do
-      allow(circuit_breaker).to receive(:circuit_broken?).and_return(true)
+        result = circuit_breaker.perform { 'hello' }
 
-      expect { circuit_breaker.check_storage_accessible! }
-        .to raise_error do |exception|
-        expect(exception).to be_kind_of(Gitlab::Git::Storage::CircuitOpen)
-        expect(exception.retry_after).to eq(30)
+        expect(result).to eq('hello')
       end
     end
 
     context 'the storage is not available' do
       let(:storage_name) { 'broken' }
 
-      it 'raises an error' do
+      it 'raises the correct exception' do
         expect(circuit_breaker).to receive(:track_storage_inaccessible)
 
-        expect { circuit_breaker.check_storage_accessible! }
+        expect { circuit_breaker.perform { '' } }
           .to raise_error do |exception|
           expect(exception).to be_kind_of(Gitlab::Git::Storage::Inaccessible)
           expect(exception.retry_after).to eq(30)
         end
       end
-    end
-  end
-
-  describe '#track_storage_inaccessible' do
-    around do |example|
-      Timecop.freeze { example.run }
-    end
-
-    it 'records the failure time in redis' do
-      circuit_breaker.track_storage_inaccessible
-
-      failure_time = value_from_redis(:last_failure)
 
-      expect(Time.at(failure_time.to_i)).to be_within(1.second).of(Time.now)
-    end
-
-    it 'sets the failure time on the breaker without reloading' do
-      circuit_breaker.track_storage_inaccessible
-
-      expect(circuit_breaker).not_to receive(:get_failure_info)
-      expect(circuit_breaker.last_failure).to eq(Time.now)
-    end
-
-    it 'increments the failure count in redis' do
-      set_in_redis(:failure_count, 10)
-
-      circuit_breaker.track_storage_inaccessible
-
-      expect(value_from_redis(:failure_count).to_i).to be(11)
-    end
-
-    it 'increments the failure count on the breaker without reloading' do
-      set_in_redis(:failure_count, 10)
-
-      circuit_breaker.track_storage_inaccessible
+      it 'tracks that the storage was inaccessible' do
+        Timecop.freeze do
+          expect { circuit_breaker.perform { '' } }.to raise_error(Gitlab::Git::Storage::Inaccessible)
 
-      expect(circuit_breaker).not_to receive(:get_failure_info)
-      expect(circuit_breaker.failure_count).to eq(11)
+          expect(value_from_redis(:failure_count).to_i).to eq(1)
+          expect(value_from_redis(:last_failure)).not_to be_empty
+          expect(circuit_breaker.failure_count).to eq(1)
+          expect(circuit_breaker.last_failure).to be_within(1.second).of(Time.now)
+        end
+      end
     end
   end
 
-  describe '#track_storage_accessible' do
-    it 'sets the failure count to zero in redis' do
-      set_in_redis(:failure_count, 10)
-
-      circuit_breaker.track_storage_accessible
-
-      expect(value_from_redis(:failure_count).to_i).to be(0)
-    end
-
-    it 'sets the failure count to zero on the breaker without reloading' do
-      set_in_redis(:failure_count, 10)
-
-      circuit_breaker.track_storage_accessible
+  describe '#circuit_broken?' do
+    it 'is working when there is no last failure' do
+      set_in_redis(:last_failure, nil)
+      set_in_redis(:failure_count, 0)
 
-      expect(circuit_breaker).not_to receive(:get_failure_info)
-      expect(circuit_breaker.failure_count).to eq(0)
+      expect(circuit_breaker.circuit_broken?).to be_falsey
     end
 
-    it 'removes the last failure time from redis' do
-      set_in_redis(:last_failure, Time.now.to_i)
-
-      circuit_breaker.track_storage_accessible
+    it 'is broken when there are too many failures' do
+      set_in_redis(:last_failure, 1.day.ago.to_f)
+      set_in_redis(:failure_count, 200)
 
-      expect(circuit_breaker).not_to receive(:get_failure_info)
-      expect(circuit_breaker.last_failure).to be_nil
+      expect(circuit_breaker.circuit_broken?).to be_truthy
     end
+  end
 
-    it 'removes the last failure time from the breaker without reloading' do
-      set_in_redis(:last_failure, Time.now.to_i)
-
-      circuit_breaker.track_storage_accessible
+  describe '#backing_off?' do
+    it 'is true when there was a recent failure' do
+      Timecop.freeze do
+        set_in_redis(:last_failure, 1.second.ago.to_f)
+        set_in_redis(:failure_count, 90)
 
-      expect(value_from_redis(:last_failure)).to be_empty
+        expect(circuit_breaker.backing_off?).to be_truthy
+      end
     end
 
-    it 'wont connect to redis when there are no failures' do
-      expect(Gitlab::Git::Storage.redis).to receive(:with).once
-                                              .and_call_original
-      expect(circuit_breaker).to receive(:track_storage_accessible)
-                           .and_call_original
-
-      circuit_breaker.track_storage_accessible
-    end
-  end
+    context 'the `failure_wait_time` is set to 0' do
+      before do
+        stub_application_setting(circuitbreaker_failure_wait_time: 0)
+      end
 
-  describe '#no_failures?' do
-    it 'is false when a failure was tracked' do
-      set_in_redis(:last_failure, Time.now.to_i)
-      set_in_redis(:failure_count, 1)
+      it 'is working even when there are failures' do
+        Timecop.freeze do
+          set_in_redis(:last_failure, 0.seconds.ago.to_f)
+          set_in_redis(:failure_count, 90)
 
-      expect(circuit_breaker.no_failures?).to be_falsey
+          expect(circuit_breaker.backing_off?).to be_falsey
+        end
+      end
     end
   end
 
@@ -351,10 +306,4 @@ describe Gitlab::Git::Storage::CircuitBreaker, clean_gitlab_redis_shared_state:
       expect(circuit_breaker.failure_count).to eq(7)
     end
   end
-
-  describe '#cache_key' do
-    it 'includes storage and host' do
-      expect(circuit_breaker.cache_key).to eq(cache_key)
-    end
-  end
 end
diff --git a/spec/lib/gitlab/git/storage/forked_storage_check_spec.rb b/spec/lib/gitlab/git/storage/forked_storage_check_spec.rb
index c708b15853a..39a5d020bb4 100644
--- a/spec/lib/gitlab/git/storage/forked_storage_check_spec.rb
+++ b/spec/lib/gitlab/git/storage/forked_storage_check_spec.rb
@@ -33,6 +33,21 @@ describe Gitlab::Git::Storage::ForkedStorageCheck, broken_storage: true, skip_da
       expect(runtime).to be < 1.0
     end
 
+    it 'will try the specified amount of times before failing'  do
+      allow(described_class).to receive(:check_filesystem_in_process) do
+        Process.spawn("sleep 10")
+      end
+
+      expect(Process).to receive(:spawn).with('sleep 10').twice
+                           .and_call_original
+
+      runtime = Benchmark.realtime do
+        described_class.storage_available?(existing_path, 0.5, 2)
+      end
+
+      expect(runtime).to be < 1.0
+    end
+
     describe 'when using paths with spaces' do
       let(:test_dir) { Rails.root.join('tmp', 'tests', 'storage_check') }
       let(:path_with_spaces) { File.join(test_dir, 'path with spaces') }
diff --git a/spec/lib/gitlab/git/storage/null_circuit_breaker_spec.rb b/spec/lib/gitlab/git/storage/null_circuit_breaker_spec.rb
index 7ee6d2f3709..5db37f55e03 100644
--- a/spec/lib/gitlab/git/storage/null_circuit_breaker_spec.rb
+++ b/spec/lib/gitlab/git/storage/null_circuit_breaker_spec.rb
@@ -65,17 +65,6 @@ describe Gitlab::Git::Storage::NullCircuitBreaker do
     ours = described_class.public_instance_methods
     theirs = Gitlab::Git::Storage::CircuitBreaker.public_instance_methods
 
-    # These methods are not part of the public API, but are public to allow the
-    # CircuitBreaker specs to operate. They should be made private over time.
-    exceptions = %i[
-      cache_key
-      check_storage_accessible!
-      no_failures?
-      storage_available?
-      track_storage_accessible
-      track_storage_inaccessible
-    ]
-
-    expect(theirs - ours).to contain_exactly(*exceptions)
+    expect(theirs - ours).to be_empty
   end
 end
diff --git a/spec/lib/gitlab/git/user_spec.rb b/spec/lib/gitlab/git/user_spec.rb
index 31d5f59a562..eb8db819045 100644
--- a/spec/lib/gitlab/git/user_spec.rb
+++ b/spec/lib/gitlab/git/user_spec.rb
@@ -5,14 +5,20 @@ describe Gitlab::Git::User do
   let(:name) { 'Jane Doe' }
   let(:email) { 'janedoe@example.com' }
   let(:gl_id) { 'user-123' }
+  let(:user) do
+    described_class.new(username, name, email, gl_id)
+  end
 
   subject { described_class.new(username, name, email, gl_id) }
 
   describe '.from_gitaly' do
-    let(:gitaly_user) { Gitaly::User.new(name: name, email: email, gl_id: gl_id) }
+    let(:gitaly_user) do
+      Gitaly::User.new(gl_username: username, name: name, email: email, gl_id: gl_id)
+    end
+
     subject { described_class.from_gitaly(gitaly_user) }
 
-    it { expect(subject).to eq(described_class.new('', name, email, gl_id)) }
+    it { expect(subject).to eq(user) }
   end
 
   describe '.from_gitlab' do
@@ -35,4 +41,16 @@ describe Gitlab::Git::User do
     it { expect(subject).not_to eq_other(username, name, email + 'x', gl_id) }
     it { expect(subject).not_to eq_other(username, name, email, gl_id + 'x') }
   end
+
+  describe '#to_gitaly' do
+    subject { user.to_gitaly }
+
+    it 'creates a Gitaly::User with the correct data' do
+      expect(subject).to be_a(Gitaly::User)
+      expect(subject.gl_username).to eq(username)
+      expect(subject.name).to eq(name)
+      expect(subject.email).to eq(email)
+      expect(subject.gl_id).to eq(gl_id)
+    end
+  end
 end
diff --git a/spec/lib/gitlab/gitaly_client/operation_service_spec.rb b/spec/lib/gitlab/gitaly_client/operation_service_spec.rb
index 7bd6a7fa842..e144e28b5d8 100644
--- a/spec/lib/gitlab/gitaly_client/operation_service_spec.rb
+++ b/spec/lib/gitlab/gitaly_client/operation_service_spec.rb
@@ -5,7 +5,7 @@ describe Gitlab::GitalyClient::OperationService do
   let(:repository) { project.repository.raw }
   let(:client) { described_class.new(repository) }
   let(:user) { create(:user) }
-  let(:gitaly_user) { Gitlab::GitalyClient::Util.gitaly_user(user) }
+  let(:gitaly_user) { Gitlab::Git::User.from_gitlab(user).to_gitaly }
 
   describe '#user_create_branch' do
     let(:branch_name) { 'new' }
diff --git a/spec/lib/gitlab/gitaly_client/util_spec.rb b/spec/lib/gitlab/gitaly_client/util_spec.rb
index c0c29552494..d1e0136f8c1 100644
--- a/spec/lib/gitlab/gitaly_client/util_spec.rb
+++ b/spec/lib/gitlab/gitaly_client/util_spec.rb
@@ -26,18 +26,4 @@ describe Gitlab::GitalyClient::Util do
       expect(subject.git_alternate_object_directories).to eq(git_alternate_object_directory)
     end
   end
-
-  describe '.gitaly_user' do
-    let(:user) { create(:user) }
-    let(:gl_id) { Gitlab::GlId.gl_id(user) }
-
-    subject { described_class.gitaly_user(user) }
-
-    it 'creates a Gitaly::User from a GitLab user' do
-      expect(subject).to be_a(Gitaly::User)
-      expect(subject.name).to eq(user.name)
-      expect(subject.email).to eq(user.email)
-      expect(subject.gl_id).to eq(gl_id)
-    end
-  end
 end
diff --git a/spec/lib/gitlab/import_export/all_models.yml b/spec/lib/gitlab/import_export/all_models.yml
index 29baa70d5ae..6c6b9154a0a 100644
--- a/spec/lib/gitlab/import_export/all_models.yml
+++ b/spec/lib/gitlab/import_export/all_models.yml
@@ -195,6 +195,7 @@ project:
 - mattermost_slash_commands_service
 - slack_slash_commands_service
 - irker_service
+- packagist_service
 - pivotaltracker_service
 - prometheus_service
 - hipchat_service
@@ -286,3 +287,6 @@ timelogs:
 - user
 push_event_payload:
 - event
+issue_assignees:
+- issue
+- assignee
\ No newline at end of file
diff --git a/spec/lib/gitlab/import_export/project.json b/spec/lib/gitlab/import_export/project.json
index 1115fb218d6..9a68bbb379c 100644
--- a/spec/lib/gitlab/import_export/project.json
+++ b/spec/lib/gitlab/import_export/project.json
@@ -43,7 +43,7 @@
   "issues": [
     {
       "id": 40,
-      "title": "Voluptatem amet doloribus deleniti eos maxime repudiandae molestias.",
+      "title": "Voluptatem",
       "assignee_id": 1,
       "author_id": 22,
       "project_id": 5,
@@ -60,6 +60,12 @@
       "due_date": null,
       "moved_to_id": null,
       "test_ee_field": "test",
+      "issue_assignees": [
+        {
+          "user_id": 1,
+          "issue_id": 1
+        }
+      ],
       "milestone": {
         "id": 1,
         "title": "test milestone",
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 4301eee17dc..76b01b6a1ec 100644
--- a/spec/lib/gitlab/import_export/project_tree_restorer_spec.rb
+++ b/spec/lib/gitlab/import_export/project_tree_restorer_spec.rb
@@ -63,6 +63,10 @@ describe Gitlab::ImportExport::ProjectTreeRestorer do
         expect(issue.reload.updated_at.to_s).to eq('2016-06-14 15:02:47 UTC')
       end
 
+      it 'has issue assignees' do
+        expect(Issue.where(title: 'Voluptatem').first.issue_assignees).not_to be_empty
+      end
+
       it 'contains the merge access levels on a protected branch' do
         expect(ProtectedBranch.first.merge_access_levels).not_to be_empty
       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 d9b86e1bf34..8da768ebd07 100644
--- a/spec/lib/gitlab/import_export/project_tree_saver_spec.rb
+++ b/spec/lib/gitlab/import_export/project_tree_saver_spec.rb
@@ -77,6 +77,10 @@ describe Gitlab::ImportExport::ProjectTreeSaver do
         expect(saved_project_json['issues'].first['notes']).not_to be_empty
       end
 
+      it 'has issue assignees' do
+        expect(saved_project_json['issues'].first['issue_assignees']).not_to be_empty
+      end
+
       it 'has author on issue comments' do
         expect(saved_project_json['issues'].first['notes'].first['author']).not_to be_empty
       end
diff --git a/spec/lib/gitlab/import_export/safe_model_attributes.yml b/spec/lib/gitlab/import_export/safe_model_attributes.yml
index 121c0ed04ed..89d30407077 100644
--- a/spec/lib/gitlab/import_export/safe_model_attributes.yml
+++ b/spec/lib/gitlab/import_export/safe_model_attributes.yml
@@ -506,3 +506,6 @@ ProjectAutoDevops:
 - project_id
 - created_at
 - updated_at
+IssueAssignee:
+- user_id
+- issue_id
\ No newline at end of file
diff --git a/spec/lib/gitlab/ldap/authentication_spec.rb b/spec/lib/gitlab/ldap/authentication_spec.rb
index 01b6282af0c..9d57a46c12b 100644
--- a/spec/lib/gitlab/ldap/authentication_spec.rb
+++ b/spec/lib/gitlab/ldap/authentication_spec.rb
@@ -1,8 +1,8 @@
 require 'spec_helper'
 
 describe Gitlab::LDAP::Authentication do
-  let(:user)     { create(:omniauth_user, extern_uid: dn) }
-  let(:dn)       { 'uid=john,ou=people,dc=example,dc=com' }
+  let(:dn)       { 'uid=John Smith, ou=People, dc=example, dc=com' }
+  let(:user)     { create(:omniauth_user, extern_uid: Gitlab::LDAP::Person.normalize_dn(dn)) }
   let(:login)    { 'john' }
   let(:password) { 'password' }
 
diff --git a/spec/lib/gitlab/ldap/user_spec.rb b/spec/lib/gitlab/ldap/user_spec.rb
index 9a4705d1cee..260df6e4dae 100644
--- a/spec/lib/gitlab/ldap/user_spec.rb
+++ b/spec/lib/gitlab/ldap/user_spec.rb
@@ -44,23 +44,25 @@ describe Gitlab::LDAP::User do
   end
 
   describe '.find_by_uid_and_provider' do
+    let(:dn) { 'CN=John Åström, CN=Users, DC=Example, DC=com' }
+
     it 'retrieves the correct user' do
       special_info = {
         name: 'John Åström',
         email: 'john@example.com',
         nickname: 'jastrom'
       }
-      special_hash = OmniAuth::AuthHash.new(uid: 'CN=John Åström,CN=Users,DC=Example,DC=com', provider: 'ldapmain', info: special_info)
+      special_hash = OmniAuth::AuthHash.new(uid: dn, provider: 'ldapmain', info: special_info)
       special_chars_user = described_class.new(special_hash)
       user = special_chars_user.save
 
-      expect(described_class.find_by_uid_and_provider(special_hash.uid, special_hash.provider)).to eq user
+      expect(described_class.find_by_uid_and_provider(dn, 'ldapmain')).to eq user
     end
   end
 
   describe 'find or create' do
     it "finds the user if already existing" do
-      create(:omniauth_user, extern_uid: 'uid=John Smith,ou=People,dc=example,dc=com', provider: 'ldapmain')
+      create(:omniauth_user, extern_uid: 'uid=john smith,ou=people,dc=example,dc=com', provider: 'ldapmain')
 
       expect { ldap_user.save }.not_to change { User.count }
     end
diff --git a/spec/lib/gitlab/metrics/sidekiq_middleware_spec.rb b/spec/lib/gitlab/metrics/sidekiq_middleware_spec.rb
index b576d7173f5..0803ce42fac 100644
--- a/spec/lib/gitlab/metrics/sidekiq_middleware_spec.rb
+++ b/spec/lib/gitlab/metrics/sidekiq_middleware_spec.rb
@@ -4,35 +4,30 @@ 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 } }
 
-  describe '#call' do
-    it 'tracks the transaction' do
-      worker = double(:worker, class: double(:class, name: 'TestWorker'))
+  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(Gitlab::Metrics::Transaction).to receive(:new)
-        .with('TestWorker#perform')
-        .and_call_original
+    expect_any_instance_of(Gitlab::Metrics::Transaction).to receive(:finish)
 
-      expect_any_instance_of(Gitlab::Metrics::Transaction).to receive(:set)
-        .with(:sidekiq_queue_duration, instance_of(Float))
+    middleware.call(worker, message, :test) { nil }
+  end
 
-      expect_any_instance_of(Gitlab::Metrics::Transaction).to receive(:finish)
+  describe '#call' do
+    it 'tracks the transaction' do
+      worker = double(:worker, class: double(:class, name: 'TestWorker'))
 
-      middleware.call(worker, message, :test) { nil }
+      run(worker, message)
     end
 
     it 'tracks the transaction (for messages without `enqueued_at`)' do
       worker = double(:worker, class: double(:class, name: 'TestWorker'))
 
-      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, {}, :test) { nil }
+      run(worker, {})
     end
 
     it 'tracks any raised exceptions' do
@@ -50,5 +45,18 @@ 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/middleware/go_spec.rb b/spec/lib/gitlab/middleware/go_spec.rb
index cab662819ac..67121937398 100644
--- a/spec/lib/gitlab/middleware/go_spec.rb
+++ b/spec/lib/gitlab/middleware/go_spec.rb
@@ -17,89 +17,115 @@ describe Gitlab::Middleware::Go do
     describe 'when go-get=1' do
       let(:current_user) { nil }
 
-      context 'with simple 2-segment project path' do
-        let!(:project) { create(:project, :private) }
+      shared_examples 'go-get=1' do |enabled_protocol:|
+        context 'with simple 2-segment project path' do
+          let!(:project) { create(:project, :private) }
 
-        context 'with subpackages' do
-          let(:path) { "#{project.full_path}/subpackage" }
+          context 'with subpackages' do
+            let(:path) { "#{project.full_path}/subpackage" }
 
-          it 'returns the full project path' do
-            expect_response_with_path(go, project.full_path)
-          end
-        end
-
-        context 'without subpackages' do
-          let(:path) { project.full_path }
-
-          it 'returns the full project path' do
-            expect_response_with_path(go, project.full_path)
+            it 'returns the full project path' do
+              expect_response_with_path(go, enabled_protocol, project.full_path)
+            end
           end
-        end
-      end
 
-      context 'with a nested project path' do
-        let(:group) { create(:group, :nested) }
-        let!(:project) { create(:project, :public, namespace: group) }
+          context 'without subpackages' do
+            let(:path) { project.full_path }
 
-        shared_examples 'a nested project' do
-          context 'when the project is public' do
             it 'returns the full project path' do
-              expect_response_with_path(go, project.full_path)
+              expect_response_with_path(go, enabled_protocol, project.full_path)
             end
           end
+        end
 
-          context 'when the project is private' do
-            before do
-              project.update_attribute(:visibility_level, Project::PRIVATE)
-            end
+        context 'with a nested project path' do
+          let(:group) { create(:group, :nested) }
+          let!(:project) { create(:project, :public, namespace: group) }
 
-            context 'with access to the project' do
-              let(:current_user) { project.creator }
+          shared_examples 'a nested project' do
+            context 'when the project is public' do
+              it 'returns the full project path' do
+                expect_response_with_path(go, enabled_protocol, project.full_path)
+              end
+            end
 
+            context 'when the project is private' do
               before do
-                project.team.add_master(current_user)
+                project.update_attribute(:visibility_level, Project::PRIVATE)
               end
 
-              it 'returns the full project path' do
-                expect_response_with_path(go, project.full_path)
+              context 'with access to the project' do
+                let(:current_user) { project.creator }
+
+                before do
+                  project.team.add_master(current_user)
+                end
+
+                it 'returns the full project path' do
+                  expect_response_with_path(go, enabled_protocol, project.full_path)
+                end
               end
-            end
 
-            context 'without access to the project' do
-              it 'returns the 2-segment group path' do
-                expect_response_with_path(go, group.full_path)
+              context 'without access to the project' do
+                it 'returns the 2-segment group path' do
+                  expect_response_with_path(go, enabled_protocol, group.full_path)
+                end
               end
             end
           end
-        end
 
-        context 'with subpackages' do
-          let(:path) { "#{project.full_path}/subpackage" }
+          context 'with subpackages' do
+            let(:path) { "#{project.full_path}/subpackage" }
 
-          it_behaves_like 'a nested project'
-        end
+            it_behaves_like 'a nested project'
+          end
+
+          context 'with a subpackage that is not a valid project path' do
+            let(:path) { "#{project.full_path}/---subpackage" }
 
-        context 'with a subpackage that is not a valid project path' do
-          let(:path) { "#{project.full_path}/---subpackage" }
+            it_behaves_like 'a nested project'
+          end
+
+          context 'without subpackages' do
+            let(:path) { project.full_path }
 
-          it_behaves_like 'a nested project'
+            it_behaves_like 'a nested project'
+          end
         end
 
-        context 'without subpackages' do
-          let(:path) { project.full_path }
+        context 'with a bogus path' do
+          let(:path) { "http:;url=http:&sol;&sol;www.example.com'http-equiv='refresh'x='?go-get=1" }
+
+          it 'skips go-import generation' do
+            expect(app).to receive(:call).and_return('no-go')
 
-          it_behaves_like 'a nested project'
+            go
+          end
+        end
+      end
+
+      context 'with SSH disabled' do
+        before do
+          stub_application_setting(enabled_git_access_protocol: 'http')
         end
+
+        include_examples 'go-get=1', enabled_protocol: :http
       end
 
-      context 'with a bogus path' do
-        let(:path) { "http:;url=http:&sol;&sol;www.example.com'http-equiv='refresh'x='?go-get=1" }
+      context 'with HTTP disabled' do
+        before do
+          stub_application_setting(enabled_git_access_protocol: 'ssh')
+        end
 
-        it 'skips go-import generation' do
-          expect(app).to receive(:call).and_return('no-go')
+        include_examples 'go-get=1', enabled_protocol: :ssh
+      end
 
-          go
+      context 'with nothing disabled' do
+        before do
+          stub_application_setting(enabled_git_access_protocol: nil)
         end
+
+        include_examples 'go-get=1', enabled_protocol: nil
       end
     end
 
@@ -113,10 +139,16 @@ describe Gitlab::Middleware::Go do
       middleware.call(env)
     end
 
-    def expect_response_with_path(response, path)
+    def expect_response_with_path(response, protocol, path)
+      repository_url = case protocol
+                       when :ssh
+                         "ssh://git@#{Gitlab.config.gitlab.host}/#{path}.git"
+                       when :http, nil
+                         "http://#{Gitlab.config.gitlab.host}/#{path}.git"
+                       end
       expect(response[0]).to eq(200)
       expect(response[1]['Content-Type']).to eq('text/html')
-      expected_body = %{<html><head><meta name="go-import" content="#{Gitlab.config.gitlab.host}/#{path} git http://#{Gitlab.config.gitlab.host}/#{path}.git" /></head></html>}
+      expected_body = %{<html><head><meta name="go-import" content="#{Gitlab.config.gitlab.host}/#{path} git #{repository_url}" /></head></html>}
       expect(response[2].body).to eq([expected_body])
     end
   end
diff --git a/spec/lib/gitlab/o_auth/user_spec.rb b/spec/lib/gitlab/o_auth/user_spec.rb
index db26e16e3b2..c7471a21fda 100644
--- a/spec/lib/gitlab/o_auth/user_spec.rb
+++ b/spec/lib/gitlab/o_auth/user_spec.rb
@@ -4,7 +4,7 @@ describe Gitlab::OAuth::User do
   let(:oauth_user) { described_class.new(auth_hash) }
   let(:gl_user) { oauth_user.gl_user }
   let(:uid) { 'my-uid' }
-  let(:dn) { 'uid=user1,ou=People,dc=example' }
+  let(:dn) { 'uid=user1,ou=people,dc=example' }
   let(:provider) { 'my-provider' }
   let(:auth_hash) { OmniAuth::AuthHash.new(uid: uid, provider: provider, info: info_hash) }
   let(:info_hash) do
diff --git a/spec/lib/gitlab/saml/user_spec.rb b/spec/lib/gitlab/saml/user_spec.rb
index 1c23fb5f285..1765980e977 100644
--- a/spec/lib/gitlab/saml/user_spec.rb
+++ b/spec/lib/gitlab/saml/user_spec.rb
@@ -7,7 +7,7 @@ describe Gitlab::Saml::User do
   let(:saml_user) { described_class.new(auth_hash) }
   let(:gl_user) { saml_user.gl_user }
   let(:uid) { 'my-uid' }
-  let(:dn) { 'uid=user1,ou=People,dc=example' }
+  let(:dn) { 'uid=user1,ou=people,dc=example' }
   let(:provider) { 'saml' }
   let(:raw_info_attr) { { 'groups' => %w(Developers Freelancers Designers) } }
   let(:auth_hash) { OmniAuth::AuthHash.new(uid: uid, provider: provider, info: info_hash, extra: { raw_info: OneLogin::RubySaml::Attributes.new(raw_info_attr) }) }
diff --git a/spec/lib/gitlab/workhorse_spec.rb b/spec/lib/gitlab/workhorse_spec.rb
index 80bf7986ee0..249c77dc636 100644
--- a/spec/lib/gitlab/workhorse_spec.rb
+++ b/spec/lib/gitlab/workhorse_spec.rb
@@ -268,7 +268,8 @@ describe Gitlab::Workhorse do
         GL_ID: "user-#{user.id}",
         GL_USERNAME: user.username,
         GL_REPOSITORY: "project-#{project.id}",
-        RepoPath: repo_path
+        RepoPath: repo_path,
+        ShowAllRefs: false
       }
     end
 
@@ -282,7 +283,8 @@ describe Gitlab::Workhorse do
           GL_ID: "user-#{user.id}",
           GL_USERNAME: user.username,
           GL_REPOSITORY: "wiki-#{project.id}",
-          RepoPath: repo_path
+          RepoPath: repo_path,
+          ShowAllRefs: false
         }
       end
 
@@ -324,6 +326,12 @@ describe Gitlab::Workhorse do
 
           expect(subject).to include(gitaly_params)
         end
+
+        context 'show_all_refs enabled' do
+          subject { described_class.git_http_ok(repository, false, user, action, show_all_refs: true) }
+
+          it { is_expected.to include(ShowAllRefs: true) }
+        end
       end
 
       context "when git_receive_pack action is passed" do
@@ -336,6 +344,12 @@ describe Gitlab::Workhorse do
         let(:action) { 'info_refs' }
 
         it { expect(subject).to include(gitaly_params) }
+
+        context 'show_all_refs enabled' do
+          subject { described_class.git_http_ok(repository, false, user, action, show_all_refs: true) }
+
+          it { is_expected.to include(ShowAllRefs: true) }
+        end
       end
 
       context 'when action passed is not supported by Gitaly' do
diff --git a/spec/models/application_setting_spec.rb b/spec/models/application_setting_spec.rb
index 30495fd4f5e..47b7150d36f 100644
--- a/spec/models/application_setting_spec.rb
+++ b/spec/models/application_setting_spec.rb
@@ -115,7 +115,8 @@ describe ApplicationSetting do
     end
 
     context 'circuitbreaker settings' do
-      [:circuitbreaker_failure_count_threshold,
+      [:circuitbreaker_backoff_threshold,
+       :circuitbreaker_failure_count_threshold,
        :circuitbreaker_failure_wait_time,
        :circuitbreaker_failure_reset_time,
        :circuitbreaker_storage_timeout].each do |field|
@@ -125,6 +126,16 @@ describe ApplicationSetting do
                            .is_greater_than_or_equal_to(0)
         end
       end
+
+      it 'requires the `backoff_threshold` to be lower than the `failure_count_threshold`' do
+        setting.circuitbreaker_failure_count_threshold = 10
+        setting.circuitbreaker_backoff_threshold = 15
+        failure_message = "The circuitbreaker backoff threshold should be lower "\
+                          "than the failure count threshold"
+
+        expect(setting).not_to be_valid
+        expect(setting.errors[:circuitbreaker_backoff_threshold]).to include(failure_message)
+      end
     end
 
     context 'repository storages' do
diff --git a/spec/models/concerns/subscribable_spec.rb b/spec/models/concerns/subscribable_spec.rb
index 28ff8158e0e..45dfb136aea 100644
--- a/spec/models/concerns/subscribable_spec.rb
+++ b/spec/models/concerns/subscribable_spec.rb
@@ -6,6 +6,12 @@ describe Subscribable, 'Subscribable' do
   let(:user_1)   { create(:user) }
 
   describe '#subscribed?' do
+    context 'without user' do
+      it 'returns false' do
+        expect(resource.subscribed?(nil, project)).to be_falsey
+      end
+    end
+
     context 'without project' do
       it 'returns false when no subscription exists' do
         expect(resource.subscribed?(user_1)).to be_falsey
diff --git a/spec/models/email_spec.rb b/spec/models/email_spec.rb
index b32dd31ae6d..47eb0717c0c 100644
--- a/spec/models/email_spec.rb
+++ b/spec/models/email_spec.rb
@@ -40,4 +40,12 @@ describe Email do
       expect(user.emails.confirmed.count).to eq 1
     end
   end
+
+  describe 'delegation' do
+    let(:user) { create(:user) }
+
+    it 'delegates to :user' do
+      expect(build(:email, user: user).username).to eq user.username
+    end
+  end
 end
diff --git a/spec/models/environment_spec.rb b/spec/models/environment_spec.rb
index 25e5d155894..e1be23541e8 100644
--- a/spec/models/environment_spec.rb
+++ b/spec/models/environment_spec.rb
@@ -575,6 +575,16 @@ describe Environment do
     end
   end
 
+  describe '#ref_path' do
+    subject(:environment) do
+      create(:environment, name: 'staging / review-1')
+    end
+
+    it 'returns a path that uses the slug and does not have spaces' do
+      expect(environment.ref_path).to start_with('refs/environments/staging-review-1-')
+    end
+  end
+
   describe '#external_url_for' do
     let(:source_path) { 'source/file.html' }
     let(:sha) { RepoHelpers.sample_commit.id }
diff --git a/spec/models/identity_spec.rb b/spec/models/identity_spec.rb
index 4ca6556d0f4..3ed048744de 100644
--- a/spec/models/identity_spec.rb
+++ b/spec/models/identity_spec.rb
@@ -1,6 +1,6 @@
 require 'spec_helper'
 
-RSpec.describe Identity do
+describe Identity do
   describe 'relations' do
     it { is_expected.to belong_to(:user) }
   end
@@ -22,4 +22,16 @@ RSpec.describe Identity do
       expect(other_identity.ldap?).to be_falsey
     end
   end
+
+  describe '.with_extern_uid' do
+    context 'LDAP identity' do
+      let!(:ldap_identity) { create(:identity, provider: 'ldapmain', extern_uid: 'uid=john smith,ou=people,dc=example,dc=com') }
+
+      it 'finds the identity when the DN is formatted differently' do
+        identity = described_class.with_extern_uid('ldapmain', 'uid=John Smith, ou=People, dc=example, dc=com').first
+
+        expect(identity).to eq(ldap_identity)
+      end
+    end
+  end
 end
diff --git a/spec/models/instance_configuration_spec.rb b/spec/models/instance_configuration_spec.rb
new file mode 100644
index 00000000000..8548fff5c76
--- /dev/null
+++ b/spec/models/instance_configuration_spec.rb
@@ -0,0 +1,109 @@
+require 'spec_helper'
+
+RSpec.describe InstanceConfiguration do
+  context 'without cache' do
+    describe '#settings' do
+      describe '#ssh_algorithms_hashes' do
+        let(:md5) { '54:e0:f8:70:d6:4f:4c:b1:b3:02:44:77:cf:cd:0d:fc' }
+        let(:sha256) { '9327f0d15a48c4d9f6a3aee65a1825baf9a3412001c98169c5fd022ac27762fc' }
+
+        it 'does not return anything if file does not exist' do
+          stub_pub_file(exist: false)
+
+          expect(subject.settings[:ssh_algorithms_hashes]).to be_empty
+        end
+
+        it 'does not return anything if file is empty' do
+          stub_pub_file
+
+          allow(File).to receive(:read).and_return('')
+
+          expect(subject.settings[:ssh_algorithms_hashes]).to be_empty
+        end
+
+        it 'returns the md5 and sha256 if file valid and exists' do
+          stub_pub_file
+
+          result = subject.settings[:ssh_algorithms_hashes].select { |o| o[:md5] == md5 && o[:sha256] == sha256 }
+
+          expect(result.size).to eq(InstanceConfiguration::SSH_ALGORITHMS.size)
+        end
+
+        def stub_pub_file(exist: true)
+          path = 'spec/fixtures/ssh_host_example_key.pub'
+          path << 'random' unless exist
+          allow(subject).to receive(:ssh_algorithm_file).and_return(Rails.root.join(path))
+        end
+      end
+
+      describe '#host' do
+        it 'returns current instance host' do
+          allow(Settings.gitlab).to receive(:host).and_return('exampledomain')
+
+          expect(subject.settings[:host]).to eq(Settings.gitlab.host)
+        end
+      end
+
+      describe '#gitlab_pages' do
+        let(:gitlab_pages) { subject.settings[:gitlab_pages] }
+        it 'returns Settings.pages' do
+          gitlab_pages.delete(:ip_address)
+
+          expect(gitlab_pages).to eq(Settings.pages.symbolize_keys)
+        end
+
+        it 'returns the Gitlab\'s pages host ip address' do
+          expect(gitlab_pages.keys).to include(:ip_address)
+        end
+
+        it 'returns the ip address as nil if the domain is invalid' do
+          allow(Settings.pages).to receive(:host).and_return('exampledomain')
+
+          expect(gitlab_pages[:ip_address]).to eq nil
+        end
+
+        it 'returns the ip address of the domain' do
+          allow(Settings.pages).to receive(:host).and_return('localhost')
+
+          expect(gitlab_pages[:ip_address]).to eq('127.0.0.1').or eq('::1')
+        end
+      end
+
+      describe '#gitlab_ci' do
+        let(:gitlab_ci) { subject.settings[:gitlab_ci] }
+        it 'returns Settings.gitalb_ci' do
+          gitlab_ci.delete(:artifacts_max_size)
+
+          expect(gitlab_ci).to eq(Settings.gitlab_ci.symbolize_keys)
+        end
+
+        it 'returns the key artifacts_max_size' do
+          expect(gitlab_ci.keys).to include(:artifacts_max_size)
+        end
+      end
+    end
+  end
+
+  context 'with cache', :use_clean_rails_memory_store_caching do
+    it 'caches settings content' do
+      expect(Rails.cache.read(described_class::CACHE_KEY)).to be_nil
+
+      settings = subject.settings
+
+      expect(Rails.cache.read(described_class::CACHE_KEY)).to eq(settings)
+    end
+
+    describe 'cached settings' do
+      before do
+        subject.settings
+      end
+
+      it 'expires after EXPIRATION_TIME' do
+        allow(Time).to receive(:now).and_return(Time.now + described_class::EXPIRATION_TIME)
+        Rails.cache.cleanup
+
+        expect(Rails.cache.read(described_class::CACHE_KEY)).to eq(nil)
+      end
+    end
+  end
+end
diff --git a/spec/models/merge_request_diff_commit_spec.rb b/spec/models/merge_request_diff_commit_spec.rb
index 9d4a0ecf8c0..7709cf43200 100644
--- a/spec/models/merge_request_diff_commit_spec.rb
+++ b/spec/models/merge_request_diff_commit_spec.rb
@@ -2,14 +2,93 @@ require 'rails_helper'
 
 describe MergeRequestDiffCommit do
   let(:merge_request) { create(:merge_request) }
-  subject { merge_request.commits.first }
+  let(:project) { merge_request.project }
 
   describe '#to_hash' do
+    subject { merge_request.commits.first }
+
     it 'returns the same results as Commit#to_hash, except for parent_ids' do
-      commit_from_repo = merge_request.project.repository.commit(subject.sha)
+      commit_from_repo = project.repository.commit(subject.sha)
       commit_from_repo_hash = commit_from_repo.to_hash.merge(parent_ids: [])
 
       expect(subject.to_hash).to eq(commit_from_repo_hash)
     end
   end
+
+  describe '.create_bulk' do
+    let(:sha_attribute)  { Gitlab::Database::ShaAttribute.new }
+    let(:merge_request_diff_id) { merge_request.merge_request_diff.id }
+    let(:commits) do
+      [
+        project.commit('5937ac0a7beb003549fc5fd26fc247adbce4a52e'),
+        project.commit('570e7b2abdd848b95f2f578043fc23bd6f6fd24d')
+      ]
+    end
+    let(:rows) do
+      [
+        {
+          "message": "Add submodule from gitlab.com\n\nSigned-off-by: Dmitriy Zaporozhets \u003cdmitriy.zaporozhets@gmail.com\u003e\n",
+          "authored_date": "2014-02-27T10:01:38.000+01:00".to_time,
+          "author_name": "Dmitriy Zaporozhets",
+          "author_email": "dmitriy.zaporozhets@gmail.com",
+          "committed_date": "2014-02-27T10:01:38.000+01:00".to_time,
+          "committer_name": "Dmitriy Zaporozhets",
+          "committer_email": "dmitriy.zaporozhets@gmail.com",
+          "merge_request_diff_id": merge_request_diff_id,
+          "relative_order": 0,
+          "sha": sha_attribute.type_cast_for_database('5937ac0a7beb003549fc5fd26fc247adbce4a52e')
+        },
+        {
+          "message": "Change some files\n\nSigned-off-by: Dmitriy Zaporozhets \u003cdmitriy.zaporozhets@gmail.com\u003e\n",
+          "authored_date": "2014-02-27T09:57:31.000+01:00".to_time,
+          "author_name": "Dmitriy Zaporozhets",
+          "author_email": "dmitriy.zaporozhets@gmail.com",
+          "committed_date": "2014-02-27T09:57:31.000+01:00".to_time,
+          "committer_name": "Dmitriy Zaporozhets",
+          "committer_email": "dmitriy.zaporozhets@gmail.com",
+          "merge_request_diff_id": merge_request_diff_id,
+          "relative_order": 1,
+          "sha": sha_attribute.type_cast_for_database('570e7b2abdd848b95f2f578043fc23bd6f6fd24d')
+        }
+      ]
+    end
+
+    subject { described_class.create_bulk(merge_request_diff_id, commits) }
+
+    it 'inserts the commits into the database en masse' do
+      expect(Gitlab::Database).to receive(:bulk_insert)
+        .with(described_class.table_name, rows)
+
+      subject
+    end
+
+    context 'with dates larger than the DB limit' do
+      let(:commits) do
+        # This commit's date is "Sun Aug 17 07:12:55 292278994 +0000"
+        [project.commit('ba3343bc4fa403a8dfbfcab7fc1a8c29ee34bd69')]
+      end
+      let(:timestamp) { Time.at((1 << 31) - 1) }
+      let(:rows) do
+        [{
+          "message": "Weird commit date\n",
+          "authored_date": timestamp,
+          "author_name": "Alejandro Rodríguez",
+          "author_email": "alejorro70@gmail.com",
+          "committed_date": timestamp,
+          "committer_name": "Alejandro Rodríguez",
+          "committer_email": "alejorro70@gmail.com",
+          "merge_request_diff_id": merge_request_diff_id,
+          "relative_order": 0,
+          "sha": sha_attribute.type_cast_for_database('ba3343bc4fa403a8dfbfcab7fc1a8c29ee34bd69')
+        }]
+      end
+
+      it 'uses a sanitized date' do
+        expect(Gitlab::Database).to receive(:bulk_insert)
+          .with(described_class.table_name, rows)
+
+        subject
+      end
+    end
+  end
 end
diff --git a/spec/models/merge_request_spec.rb b/spec/models/merge_request_spec.rb
index 73e038b61ed..476a2697605 100644
--- a/spec/models/merge_request_spec.rb
+++ b/spec/models/merge_request_spec.rb
@@ -86,7 +86,7 @@ describe MergeRequest do
 
     context 'when the target branch does not exist' do
       before do
-        project.repository.raw_repository.delete_branch(subject.target_branch)
+        project.repository.rm_branch(subject.author, subject.target_branch)
       end
 
       it 'returns nil' do
@@ -1388,7 +1388,7 @@ describe MergeRequest do
 
     context 'when the target branch does not exist' do
       before do
-        subject.project.repository.raw_repository.delete_branch(subject.target_branch)
+        subject.project.repository.rm_branch(subject.author, subject.target_branch)
       end
 
       it 'returns nil' do
@@ -1460,6 +1460,12 @@ describe MergeRequest do
   end
 
   describe '#merge_ongoing?' do
+    it 'returns true when the merge request is locked' do
+      merge_request = build_stubbed(:merge_request, state: :locked)
+
+      expect(merge_request.merge_ongoing?).to be(true)
+    end
+
     it 'returns true when merge_id, MR is not merged and it has no running job' do
       merge_request = build_stubbed(:merge_request, state: :open, merge_jid: 'foo')
       allow(Gitlab::SidekiqStatus).to receive(:running?).with('foo') { true }
diff --git a/spec/models/project_services/jira_service_spec.rb b/spec/models/project_services/jira_service_spec.rb
index 63bf131cfc5..ad22fb2a386 100644
--- a/spec/models/project_services/jira_service_spec.rb
+++ b/spec/models/project_services/jira_service_spec.rb
@@ -24,6 +24,8 @@ describe JiraService do
       end
 
       it { is_expected.not_to validate_presence_of(:url) }
+      it { is_expected.not_to validate_presence_of(:username) }
+      it { is_expected.not_to validate_presence_of(:password) }
     end
 
     context 'validating urls' do
@@ -54,6 +56,18 @@ describe JiraService do
         expect(service).not_to be_valid
       end
 
+      it 'is not valid when username is missing' do
+        service.username = nil
+
+        expect(service).not_to be_valid
+      end
+
+      it 'is not valid when password is missing' do
+        service.password = nil
+
+        expect(service).not_to be_valid
+      end
+
       it 'is valid when api url is a valid url' do
         service.api_url = 'http://jira.test.com/api'
 
diff --git a/spec/models/project_services/kubernetes_service_spec.rb b/spec/models/project_services/kubernetes_service_spec.rb
index 2298dcab55f..00de536a18b 100644
--- a/spec/models/project_services/kubernetes_service_spec.rb
+++ b/spec/models/project_services/kubernetes_service_spec.rb
@@ -99,45 +99,34 @@ describe KubernetesService, :use_clean_rails_memory_store_caching do
   describe '#actual_namespace' do
     subject { service.actual_namespace }
 
-    it "returns the default namespace" do
-      is_expected.to eq(service.send(:default_namespace))
-    end
-
-    context 'when namespace is specified' do
-      before do
-        service.namespace = 'my-namespace'
+    shared_examples 'a correctly formatted namespace' do
+      it 'returns a valid Kubernetes namespace name' do
+        expect(subject).to match(Gitlab::Regex.kubernetes_namespace_regex)
+        expect(subject).to eq(expected_namespace)
       end
+    end
 
-      it "returns the user-namespace" do
-        is_expected.to eq('my-namespace')
-      end
+    it_behaves_like 'a correctly formatted namespace' do
+      let(:expected_namespace) { service.send(:default_namespace) }
     end
 
-    context 'when service is not assigned to project' do
+    context 'when the project path contains forbidden characters' do
       before do
-        service.project = nil
+        project.path = '-a_Strange.Path--forSure'
       end
 
-      it "does not return namespace" do
-        is_expected.to be_nil
+      it_behaves_like 'a correctly formatted namespace' do
+        let(:expected_namespace) { "a-strange-path--forsure-#{project.id}" }
       end
     end
-  end
-
-  describe '#actual_namespace' do
-    subject { service.actual_namespace }
-
-    it "returns the default namespace" do
-      is_expected.to eq(service.send(:default_namespace))
-    end
 
     context 'when namespace is specified' do
       before do
         service.namespace = 'my-namespace'
       end
 
-      it "returns the user-namespace" do
-        is_expected.to eq('my-namespace')
+      it_behaves_like 'a correctly formatted namespace' do
+        let(:expected_namespace) { 'my-namespace' }
       end
     end
 
@@ -146,7 +135,7 @@ describe KubernetesService, :use_clean_rails_memory_store_caching do
         service.project = nil
       end
 
-      it "does not return namespace" do
+      it 'does not return namespace' do
         is_expected.to be_nil
       end
     end
diff --git a/spec/models/project_services/packagist_service_spec.rb b/spec/models/project_services/packagist_service_spec.rb
new file mode 100644
index 00000000000..6acee311700
--- /dev/null
+++ b/spec/models/project_services/packagist_service_spec.rb
@@ -0,0 +1,46 @@
+require 'spec_helper'
+
+describe PackagistService do
+  describe "Associations" do
+    it { is_expected.to belong_to :project }
+    it { is_expected.to have_one :service_hook }
+  end
+
+  let(:project) { create(:project) }
+
+  let(:packagist_server) { 'https://packagist.example.com' }
+  let(:packagist_username) { 'theUser' }
+  let(:packagist_token) { 'verySecret' }
+  let(:packagist_hook_url) do
+    "#{packagist_server}/api/update-package?username=#{packagist_username}&apiToken=#{packagist_token}"
+  end
+
+  let(:packagist_params) do
+    {
+        active: true,
+        project: project,
+        properties: {
+            username: packagist_username,
+            token: packagist_token,
+            server: packagist_server
+        }
+    }
+  end
+
+  describe '#execute' do
+    let(:user)    { create(:user) }
+    let(:project) { create(:project, :repository) }
+    let(:push_sample_data) { Gitlab::DataBuilder::Push.build_sample(project, user) }
+    let(:packagist_service) { described_class.create(packagist_params) }
+
+    before do
+      stub_request(:post, packagist_hook_url)
+    end
+
+    it 'calls Packagist API' do
+      packagist_service.execute(push_sample_data)
+
+      expect(a_request(:post, packagist_hook_url)).to have_been_made.once
+    end
+  end
+end
diff --git a/spec/models/project_spec.rb b/spec/models/project_spec.rb
index 74eba7e33f6..ed6e42d476e 100644
--- a/spec/models/project_spec.rb
+++ b/spec/models/project_spec.rb
@@ -24,6 +24,7 @@ describe Project do
     it { is_expected.to have_one(:slack_service) }
     it { is_expected.to have_one(:microsoft_teams_service) }
     it { is_expected.to have_one(:mattermost_service) }
+    it { is_expected.to have_one(:packagist_service) }
     it { is_expected.to have_one(:pushover_service) }
     it { is_expected.to have_one(:asana_service) }
     it { is_expected.to have_many(:boards) }
@@ -2452,6 +2453,7 @@ describe Project do
   context 'legacy storage' do
     let(:project) { create(:project, :repository) }
     let(:gitlab_shell) { Gitlab::Shell.new }
+    let(:project_storage) { project.send(:storage) }
 
     before do
       allow(project).to receive(:gitlab_shell).and_return(gitlab_shell)
@@ -2493,7 +2495,7 @@ describe Project do
 
     describe '#hashed_storage?' do
       it 'returns false' do
-        expect(project.hashed_storage?).to be_falsey
+        expect(project.hashed_storage?(:repository)).to be_falsey
       end
     end
 
@@ -2546,6 +2548,30 @@ describe Project do
 
         it { expect { subject }.to raise_error(StandardError) }
       end
+
+      context 'gitlab pages' do
+        before do
+          expect(project_storage).to receive(:rename_repo) { true }
+        end
+
+        it 'moves pages folder to new location' do
+          expect_any_instance_of(Gitlab::PagesTransfer).to receive(:rename_project)
+
+          project.rename_repo
+        end
+      end
+
+      context 'attachments' do
+        before do
+          expect(project_storage).to receive(:rename_repo) { true }
+        end
+
+        it 'moves uploads folder to new location' do
+          expect_any_instance_of(Gitlab::UploadsTransfer).to receive(:rename_project)
+
+          project.rename_repo
+        end
+      end
     end
 
     describe '#pages_path' do
@@ -2605,8 +2631,14 @@ describe Project do
     end
 
     describe '#hashed_storage?' do
-      it 'returns true' do
-        expect(project.hashed_storage?).to be_truthy
+      it 'returns true if rolled out' do
+        expect(project.hashed_storage?(:attachments)).to be_truthy
+      end
+
+      it 'returns false when not rolled out yet' do
+        project.storage_version = 1
+
+        expect(project.hashed_storage?(:attachments)).to be_falsey
       end
     end
 
@@ -2649,10 +2681,6 @@ describe Project do
           .to receive(:execute_hooks_for)
             .with(project, :rename)
 
-        expect_any_instance_of(Gitlab::UploadsTransfer)
-          .to receive(:rename_project)
-            .with('foo', project.path, project.namespace.full_path)
-
         expect(project).to receive(:expire_caches_before_rename)
 
         expect(project).to receive(:expires_full_path_cache)
@@ -2673,6 +2701,32 @@ describe Project do
 
         it { expect { subject }.to raise_error(StandardError) }
       end
+
+      context 'gitlab pages' do
+        it 'moves pages folder to new location' do
+          expect_any_instance_of(Gitlab::PagesTransfer).to receive(:rename_project)
+
+          project.rename_repo
+        end
+      end
+
+      context 'attachments' do
+        it 'keeps uploads folder location unchanged' do
+          expect_any_instance_of(Gitlab::UploadsTransfer).not_to receive(:rename_project)
+
+          project.rename_repo
+        end
+
+        context 'when not rolled out' do
+          let(:project) { create(:project, :repository, storage_version: 1) }
+
+          it 'moves pages folder to new location' do
+            expect_any_instance_of(Gitlab::UploadsTransfer).to receive(:rename_project)
+
+            project.rename_repo
+          end
+        end
+      end
     end
 
     describe '#pages_path' do
diff --git a/spec/models/project_wiki_spec.rb b/spec/models/project_wiki_spec.rb
index f10d9383ae2..3d46434fc27 100644
--- a/spec/models/project_wiki_spec.rb
+++ b/spec/models/project_wiki_spec.rb
@@ -117,65 +117,74 @@ describe ProjectWiki do
   end
 
   describe "#find_page" do
-    before do
-      create_page("index page", "This is an awesome Gollum Wiki")
-    end
+    shared_examples 'finding a wiki page' do
+      before do
+        create_page("index page", "This is an awesome Gollum Wiki")
+      end
 
-    after do
-      destroy_page(subject.pages.first.page)
-    end
+      after do
+        destroy_page(subject.pages.first.page)
+      end
 
-    it "returns the latest version of the page if it exists" do
-      page = subject.find_page("index page")
-      expect(page.title).to eq("index page")
-    end
+      it "returns the latest version of the page if it exists" do
+        page = subject.find_page("index page")
+        expect(page.title).to eq("index page")
+      end
 
-    it "returns nil if the page does not exist" do
-      expect(subject.find_page("non-existant")).to eq(nil)
+      it "returns nil if the page does not exist" do
+        expect(subject.find_page("non-existant")).to eq(nil)
+      end
+
+      it "can find a page by slug" do
+        page = subject.find_page("index-page")
+        expect(page.title).to eq("index page")
+      end
+
+      it "returns a WikiPage instance" do
+        page = subject.find_page("index page")
+        expect(page).to be_a WikiPage
+      end
     end
 
-    it "can find a page by slug" do
-      page = subject.find_page("index-page")
-      expect(page.title).to eq("index page")
+    context 'when Gitaly wiki_find_page is enabled' do
+      it_behaves_like 'finding a wiki page'
     end
 
-    it "returns a WikiPage instance" do
-      page = subject.find_page("index page")
-      expect(page).to be_a WikiPage
+    context 'when Gitaly wiki_find_page is disabled', :skip_gitaly_mock do
+      it_behaves_like 'finding a wiki page'
     end
   end
 
   describe '#find_file' do
-    before do
-      file = Gollum::File.new(subject.wiki)
-      allow_any_instance_of(Gollum::Wiki)
-                   .to receive(:file).with('image.jpg', 'master')
-                   .and_return(file)
-      allow_any_instance_of(Gollum::File)
-                   .to receive(:mime_type)
-                   .and_return('image/jpeg')
-      allow_any_instance_of(Gollum::Wiki)
-                   .to receive(:file).with('non-existant', 'master')
-                   .and_return(nil)
-    end
+    shared_examples 'finding a wiki file' do
+      before do
+        file = File.open(Rails.root.join('spec', 'fixtures', 'dk.png'))
+        subject.wiki # Make sure the wiki repo exists
 
-    after do
-      allow_any_instance_of(Gollum::Wiki).to receive(:file).and_call_original
-      allow_any_instance_of(Gollum::File).to receive(:mime_type).and_call_original
-    end
+        BareRepoOperations.new(subject.repository.path_to_repo).commit_file(file, 'image.png')
+      end
+
+      it 'returns the latest version of the file if it exists' do
+        file = subject.find_file('image.png')
+        expect(file.mime_type).to eq('image/png')
+      end
+
+      it 'returns nil if the page does not exist' do
+        expect(subject.find_file('non-existant')).to eq(nil)
+      end
 
-    it 'returns the latest version of the file if it exists' do
-      file = subject.find_file('image.jpg')
-      expect(file.mime_type).to eq('image/jpeg')
+      it 'returns a Gitlab::Git::WikiFile instance' do
+        file = subject.find_file('image.png')
+        expect(file).to be_a Gitlab::Git::WikiFile
+      end
     end
 
-    it 'returns nil if the page does not exist' do
-      expect(subject.find_file('non-existant')).to eq(nil)
+    context 'when Gitaly wiki_find_file is enabled' do
+      it_behaves_like 'finding a wiki file'
     end
 
-    it 'returns a Gitlab::Git::WikiFile instance' do
-      file = subject.find_file('image.jpg')
-      expect(file).to be_a Gitlab::Git::WikiFile
+    context 'when Gitaly wiki_find_file is disabled', :skip_gitaly_mock do
+      it_behaves_like 'finding a wiki file'
     end
   end
 
@@ -265,23 +274,33 @@ describe ProjectWiki do
   end
 
   describe "#delete_page" do
-    before do
-      create_page("index", "some content")
-      @page = subject.wiki.page(title: "index")
-    end
+    shared_examples 'deleting a wiki page' do
+      before do
+        create_page("index", "some content")
+        @page = subject.wiki.page(title: "index")
+      end
 
-    it "deletes the page" do
-      subject.delete_page(@page)
-      expect(subject.pages.count).to eq(0)
-    end
+      it "deletes the page" do
+        subject.delete_page(@page)
+        expect(subject.pages.count).to eq(0)
+      end
 
-    it 'updates project activity' do
-      subject.delete_page(@page)
+      it 'updates project activity' do
+        subject.delete_page(@page)
 
-      project.reload
+        project.reload
 
-      expect(project.last_activity_at).to be_within(1.minute).of(Time.now)
-      expect(project.last_repository_updated_at).to be_within(1.minute).of(Time.now)
+        expect(project.last_activity_at).to be_within(1.minute).of(Time.now)
+        expect(project.last_repository_updated_at).to be_within(1.minute).of(Time.now)
+      end
+    end
+
+    context 'when Gitaly wiki_delete_page is enabled' do
+      it_behaves_like 'deleting a wiki page'
+    end
+
+    context 'when Gitaly wiki_delete_page is disabled', :skip_gitaly_mock do
+      it_behaves_like 'deleting a wiki page'
     end
   end
 
@@ -343,6 +362,6 @@ describe ProjectWiki do
   end
 
   def destroy_page(page)
-    subject.delete_page(page, commit_details)
+    subject.delete_page(page, "test commit")
   end
 end
diff --git a/spec/models/repository_spec.rb b/spec/models/repository_spec.rb
index 39d188f18af..d7c07676911 100644
--- a/spec/models/repository_spec.rb
+++ b/spec/models/repository_spec.rb
@@ -299,6 +299,24 @@ describe Repository do
 
       it { is_expected.to be_falsey }
     end
+
+    context 'when pre-loaded merged branches are provided' do
+      using RSpec::Parameterized::TableSyntax
+
+      where(:branch, :pre_loaded, :expected) do
+        'not-merged-branch' | ['branch-merged']     | false
+        'branch-merged'     | ['not-merged-branch'] | false
+        'branch-merged'     | ['branch-merged']     | true
+        'not-merged-branch' | ['not-merged-branch'] | false
+        'master'            | ['master']            | false
+      end
+
+      with_them do
+        subject { repository.merged_to_root_ref?(branch, pre_loaded) }
+
+        it { is_expected.to eq(expected) }
+      end
+    end
   end
 
   describe '#can_be_merged?' do
@@ -2110,19 +2128,41 @@ describe Repository do
   end
 
   describe '#cache_method_output', :use_clean_rails_memory_store_caching do
+    let(:fallback) { 10 }
+
     context 'with a non-existing repository' do
-      let(:value) do
-        repository.cache_method_output(:cats, fallback: 10) do
-          raise Rugged::ReferenceError
+      let(:project) { create(:project) } # No repository
+
+      subject do
+        repository.cache_method_output(:cats, fallback: fallback) do
+          repository.cats_call_stub
         end
       end
 
-      it 'returns a fallback value' do
-        expect(value).to eq(10)
+      it 'returns the fallback value' do
+        expect(subject).to eq(fallback)
+      end
+
+      it 'avoids calling the original method' do
+        expect(repository).not_to receive(:cats_call_stub)
+
+        subject
+      end
+    end
+
+    context 'with a method throwing a non-existing-repository error' do
+      subject do
+        repository.cache_method_output(:cats, fallback: fallback) do
+          raise Gitlab::Git::Repository::NoRepository
+        end
+      end
+
+      it 'returns the fallback value' do
+        expect(subject).to eq(fallback)
       end
 
       it 'does not cache the data' do
-        value
+        subject
 
         expect(repository.instance_variable_defined?(:@cats)).to eq(false)
         expect(repository.send(:cache).exist?(:cats)).to eq(false)
@@ -2238,4 +2278,24 @@ describe Repository do
       end
     end
   end
+
+  describe 'commit cache' do
+    set(:project) { create(:project, :repository) }
+
+    it 'caches based on SHA' do
+      # Gets the commit oid, and warms the cache
+      oid = project.commit.id
+
+      expect(Gitlab::Git::Commit).not_to receive(:find).once
+
+      project.commit_by(oid: oid)
+    end
+
+    it 'caches nil values' do
+      expect(Gitlab::Git::Commit).to receive(:find).once
+
+      project.commit_by(oid: '1' * 40)
+      project.commit_by(oid: '1' * 40)
+    end
+  end
 end
diff --git a/spec/models/wiki_page_spec.rb b/spec/models/wiki_page_spec.rb
index 1f14d06997e..a7227b38850 100644
--- a/spec/models/wiki_page_spec.rb
+++ b/spec/models/wiki_page_spec.rb
@@ -402,7 +402,7 @@ describe WikiPage do
 
   def destroy_page(title)
     page = wiki.wiki.page(title: title)
-    wiki.delete_page(page, commit_details)
+    wiki.delete_page(page, "test commit")
   end
 
   def get_slugs(page_or_dir)
diff --git a/spec/requests/api/merge_requests_spec.rb b/spec/requests/api/merge_requests_spec.rb
index 28b1404a4f7..024cfe8b372 100644
--- a/spec/requests/api/merge_requests_spec.rb
+++ b/spec/requests/api/merge_requests_spec.rb
@@ -1061,6 +1061,30 @@ describe API::MergeRequests do
     end
   end
 
+  describe 'POST :id/merge_requests/:merge_request_iid/cancel_merge_when_pipeline_succeeds' do
+    before do
+      ::MergeRequests::MergeWhenPipelineSucceedsService.new(merge_request.target_project, user).execute(merge_request)
+    end
+
+    it 'removes the merge_when_pipeline_succeeds status' do
+      post api("/projects/#{project.id}/merge_requests/#{merge_request.iid}/cancel_merge_when_pipeline_succeeds", user)
+
+      expect(response).to have_gitlab_http_status(201)
+    end
+
+    it 'returns 404 if the merge request is not found' do
+      post api("/projects/#{project.id}/merge_requests/123/merge_when_pipeline_succeeds", user)
+
+      expect(response).to have_gitlab_http_status(404)
+    end
+
+    it 'returns 404 if the merge request id is used instead of iid' do
+      post api("/projects/#{project.id}/merge_requests/#{merge_request.id}/merge_when_pipeline_succeeds", user)
+
+      expect(response).to have_gitlab_http_status(404)
+    end
+  end
+
   describe 'Time tracking' do
     let(:issuable) { merge_request }
 
diff --git a/spec/requests/api/pages_domains_spec.rb b/spec/requests/api/pages_domains_spec.rb
new file mode 100644
index 00000000000..d13b3a958c9
--- /dev/null
+++ b/spec/requests/api/pages_domains_spec.rb
@@ -0,0 +1,440 @@
+require 'rails_helper'
+
+describe API::PagesDomains do
+  set(:project) { create(:project) }
+  set(:user) { create(:user) }
+
+  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) }
+  set(:pages_domain_expired) { create(:pages_domain, :with_expired_certificate, :with_key, domain: 'expired.domain.test', project: project) }
+
+  let(:pages_domain_params) { build(:pages_domain, domain: 'www.other-domain.test').slice(:domain) }
+  let(:pages_domain_secure_params) { build(:pages_domain, :with_certificate, :with_key, domain: 'ssl.other-domain.test', project: project).slice(:domain, :certificate, :key) }
+  let(:pages_domain_secure_key_missmatch_params) {build(:pages_domain, :with_trusted_chain, :with_key, project: project).slice(:domain, :certificate, :key) }
+  let(:pages_domain_secure_missing_chain_params) {build(:pages_domain, :with_missing_chain, project: project).slice(:certificate) }
+
+  let(:route) { "/projects/#{project.id}/pages/domains" }
+  let(:route_domain) { "/projects/#{project.id}/pages/domains/#{pages_domain.domain}" }
+  let(:route_secure_domain) { "/projects/#{project.id}/pages/domains/#{pages_domain_secure.domain}" }
+  let(:route_expired_domain) { "/projects/#{project.id}/pages/domains/#{pages_domain_expired.domain}" }
+  let(:route_vacant_domain) { "/projects/#{project.id}/pages/domains/www.vacant-domain.test" }
+
+  before do
+    allow(Gitlab.config.pages).to receive(:enabled).and_return(true)
+  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 include_pagination_headers
+        expect(json_response).to be_an Array
+        expect(json_response.size).to eq(3)
+        expect(json_response.map { |pages_domain| pages_domain['domain'] }).to include(pages_domain.domain)
+        expect(json_response.last).to have_key('domain')
+      end
+    end
+
+    context 'when pages is disabled' do
+      before do
+        allow(Gitlab.config.pages).to receive(:enabled).and_return(false)
+        project.add_master(user)
+      end
+
+      it_behaves_like '404 response' do
+        let(:request) { get api(route, user) }
+      end
+    end
+
+    context 'when user is a master' do
+      before do
+        project.add_master(user)
+      end
+
+      it_behaves_like 'get pages domains'
+    end
+
+    context 'when user is a developer' do
+      before do
+        project.add_developer(user)
+      end
+
+      it_behaves_like '403 response' do
+        let(:request) { get api(route, user) }
+      end
+    end
+
+    context 'when user is a reporter' do
+      before do
+        project.add_reporter(user)
+      end
+
+      it_behaves_like '403 response' do
+        let(:request) { get api(route, user) }
+      end
+    end
+
+    context 'when user is a guest' do
+      before do
+        project.add_guest(user)
+      end
+
+      it_behaves_like '403 response' do
+        let(:request) { get api(route, user) }
+      end
+    end
+
+    context 'when user is not a member' do
+      it_behaves_like '404 response' do
+        let(:request) { get api(route, user) }
+      end
+    end
+  end
+
+  describe 'GET /projects/:project_id/pages/domains/:domain' do
+    shared_examples_for 'get pages domain' do
+      it 'returns pages domain' do
+        get api(route_domain, user)
+
+        expect(response).to have_gitlab_http_status(200)
+        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
+      end
+
+      it 'returns pages domain with a certificate' do
+        get api(route_secure_domain, user)
+
+        expect(response).to have_gitlab_http_status(200)
+        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)
+        expect(json_response['certificate']['expired']).to be false
+      end
+
+      it 'returns pages domain with an expired certificate' do
+        get api(route_expired_domain, user)
+
+        expect(response).to have_gitlab_http_status(200)
+        expect(json_response['certificate']['expired']).to be true
+      end
+    end
+
+    context 'when domain is vacant' do
+      before do
+        project.add_master(user)
+      end
+
+      it_behaves_like '404 response' do
+        let(:request) { get api(route_vacant_domain, user) }
+      end
+    end
+
+    context 'when user is a master' do
+      before do
+        project.add_master(user)
+      end
+
+      it_behaves_like 'get pages domain'
+    end
+
+    context 'when user is a developer' do
+      before do
+        project.add_developer(user)
+      end
+
+      it_behaves_like '403 response' do
+        let(:request) { get api(route, user) }
+      end
+    end
+
+    context 'when user is a reporter' do
+      before do
+        project.add_reporter(user)
+      end
+
+      it_behaves_like '403 response' do
+        let(:request) { get api(route, user) }
+      end
+    end
+
+    context 'when user is a guest' do
+      before do
+        project.add_guest(user)
+      end
+
+      it_behaves_like '403 response' do
+        let(:request) { get api(route, user) }
+      end
+    end
+
+    context 'when user is not a member' do
+      it_behaves_like '404 response' do
+        let(:request) { get api(route, user) }
+      end
+    end
+  end
+
+  describe 'POST /projects/:project_id/pages/domains' do
+    let(:params) { pages_domain_params.slice(:domain) }
+    let(:params_secure) { pages_domain_secure_params.slice(:domain, :certificate, :key) }
+
+    shared_examples_for 'post pages domains' do
+      it 'creates a new pages domain' do
+        post api(route, user), params
+        pages_domain = PagesDomain.find_by(domain: json_response['domain'])
+
+        expect(response).to have_gitlab_http_status(201)
+        expect(pages_domain.domain).to eq(params[:domain])
+        expect(pages_domain.certificate).to be_nil
+        expect(pages_domain.key).to be_nil
+      end
+
+      it 'creates a new secure pages domain' do
+        post api(route, user), params_secure
+        pages_domain = PagesDomain.find_by(domain: json_response['domain'])
+
+        expect(response).to have_gitlab_http_status(201)
+        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])
+      end
+
+      it 'fails to create pages domain without key' do
+        post api(route, user), pages_domain_secure_params.slice(:domain, :certificate)
+
+        expect(response).to have_gitlab_http_status(400)
+      end
+
+      it 'fails to create pages domain with key missmatch' do
+        post api(route, user), pages_domain_secure_key_missmatch_params.slice(:domain, :certificate, :key)
+
+        expect(response).to have_gitlab_http_status(400)
+      end
+    end
+
+    context 'when user is a master' do
+      before do
+        project.add_master(user)
+      end
+
+      it_behaves_like 'post pages domains'
+    end
+
+    context 'when user is a developer' do
+      before do
+        project.add_developer(user)
+      end
+
+      it_behaves_like '403 response' do
+        let(:request) { post api(route, user), params }
+      end
+    end
+
+    context 'when user is a reporter' do
+      before do
+        project.add_reporter(user)
+      end
+
+      it_behaves_like '403 response' do
+        let(:request) { post api(route, user), params }
+      end
+    end
+
+    context 'when user is a guest' do
+      before do
+        project.add_guest(user)
+      end
+
+      it_behaves_like '403 response' do
+        let(:request) { post api(route, user), params }
+      end
+    end
+
+    context 'when user is not a member' do
+      it_behaves_like '404 response' do
+        let(:request) { post api(route, user), params }
+      end
+    end
+  end
+
+  describe 'PUT /projects/:project_id/pages/domains/:domain' do
+    let(:params_secure) { pages_domain_secure_params.slice(:certificate, :key) }
+    let(:params_secure_nokey) { pages_domain_secure_params.slice(:certificate) }
+
+    shared_examples_for 'put pages domain' do
+      it 'updates pages domain removing certificate' do
+        put api(route_secure_domain, user)
+        pages_domain_secure.reload
+
+        expect(response).to have_gitlab_http_status(200)
+        expect(pages_domain_secure.certificate).to be_nil
+        expect(pages_domain_secure.key).to be_nil
+      end
+
+      it 'updates pages domain adding certificate' do
+        put api(route_domain, user), params_secure
+        pages_domain.reload
+
+        expect(response).to have_gitlab_http_status(200)
+        expect(pages_domain.certificate).to eq(params_secure[:certificate])
+        expect(pages_domain.key).to eq(params_secure[:key])
+      end
+
+      it 'updates pages domain with expired certificate' do
+        put api(route_expired_domain, user), params_secure
+        pages_domain_expired.reload
+
+        expect(response).to have_gitlab_http_status(200)
+        expect(pages_domain_expired.certificate).to eq(params_secure[:certificate])
+        expect(pages_domain_expired.key).to eq(params_secure[:key])
+      end
+
+      it 'updates pages domain with expired certificate not updating key' do
+        put api(route_secure_domain, user), params_secure_nokey
+        pages_domain_secure.reload
+
+        expect(response).to have_gitlab_http_status(200)
+        expect(pages_domain_secure.certificate).to eq(params_secure_nokey[:certificate])
+      end
+
+      it 'fails to update pages domain adding certificate without key' do
+        put api(route_domain, user), params_secure_nokey
+
+        expect(response).to have_gitlab_http_status(400)
+      end
+
+      it 'fails to update pages domain adding certificate with missing chain' do
+        put api(route_domain, user), pages_domain_secure_missing_chain_params.slice(:certificate)
+
+        expect(response).to have_gitlab_http_status(400)
+      end
+
+      it 'fails to update pages domain with key missmatch' do
+        put api(route_secure_domain, user), pages_domain_secure_key_missmatch_params.slice(:certificate, :key)
+
+        expect(response).to have_gitlab_http_status(400)
+      end
+    end
+
+    context 'when domain is vacant' do
+      before do
+        project.add_master(user)
+      end
+
+      it_behaves_like '404 response' do
+        let(:request) { put api(route_vacant_domain, user) }
+      end
+    end
+
+    context 'when user is a master' do
+      before do
+        project.add_master(user)
+      end
+
+      it_behaves_like 'put pages domain'
+    end
+
+    context 'when user is a developer' do
+      before do
+        project.add_developer(user)
+      end
+
+      it_behaves_like '403 response' do
+        let(:request) { put api(route_domain, user) }
+      end
+    end
+
+    context 'when user is a reporter' do
+      before do
+        project.add_reporter(user)
+      end
+
+      it_behaves_like '403 response' do
+        let(:request) { put api(route_domain, user) }
+      end
+    end
+
+    context 'when user is a guest' do
+      before do
+        project.add_guest(user)
+      end
+
+      it_behaves_like '403 response' do
+        let(:request) { put api(route_domain, user) }
+      end
+    end
+
+    context 'when user is not a member' do
+      it_behaves_like '404 response' do
+        let(:request) { put api(route_domain, user) }
+      end
+    end
+  end
+
+  describe 'DELETE /projects/:project_id/pages/domains/:domain' do
+    shared_examples_for 'delete pages domain' do
+      it 'deletes a pages domain' do
+        delete api(route_domain, user)
+
+        expect(response).to have_gitlab_http_status(204)
+      end
+    end
+
+    context 'when domain is vacant' do
+      before do
+        project.add_master(user)
+      end
+
+      it_behaves_like '404 response' do
+        let(:request) { delete api(route_vacant_domain, user) }
+      end
+    end
+
+    context 'when user is a master' do
+      before do
+        project.add_master(user)
+      end
+
+      it_behaves_like 'delete pages domain'
+    end
+
+    context 'when user is a developer' do
+      before do
+        project.add_developer(user)
+      end
+
+      it_behaves_like '403 response' do
+        let(:request) { delete api(route_domain, user) }
+      end
+    end
+
+    context 'when user is a reporter' do
+      before do
+        project.add_reporter(user)
+      end
+
+      it_behaves_like '403 response' do
+        let(:request) { delete api(route_domain, user) }
+      end
+    end
+
+    context 'when user is a guest' do
+      before do
+        project.add_guest(user)
+      end
+
+      it_behaves_like '403 response' do
+        let(:request) { delete api(route_domain, user) }
+      end
+    end
+
+    context 'when user is not a member' do
+      it_behaves_like '404 response' do
+        let(:request) { delete api(route_domain, user) }
+      end
+    end
+  end
+end
diff --git a/spec/requests/api/runner_spec.rb b/spec/requests/api/runner_spec.rb
index 5fd76fce7df..47f4ccd4887 100644
--- a/spec/requests/api/runner_spec.rb
+++ b/spec/requests/api/runner_spec.rb
@@ -385,7 +385,7 @@ describe API::Runner do
           end
 
           context 'when job is made for tag' do
-            let!(:job) { create(:ci_build_tag, pipeline: pipeline, name: 'spinach', stage: 'test', stage_idx: 0) }
+            let!(:job) { create(:ci_build, :tag, pipeline: pipeline, name: 'spinach', stage: 'test', stage_idx: 0) }
 
             it 'sets branch as ref_type' do
               request_job
@@ -436,8 +436,8 @@ describe API::Runner do
           end
 
           context 'when project and pipeline have multiple jobs' do
-            let!(:job) { create(:ci_build_tag, pipeline: pipeline, name: 'spinach', stage: 'test', stage_idx: 0) }
-            let!(:job2) { create(:ci_build_tag, pipeline: pipeline, name: 'rubocop', stage: 'test', stage_idx: 0) }
+            let!(:job) { create(:ci_build, :tag, pipeline: pipeline, name: 'spinach', stage: 'test', stage_idx: 0) }
+            let!(:job2) { create(:ci_build, :tag, pipeline: pipeline, name: 'rubocop', stage: 'test', stage_idx: 0) }
             let!(:test_job) { create(:ci_build, pipeline: pipeline, name: 'deploy', stage: 'deploy', stage_idx: 1) }
 
             before do
@@ -458,7 +458,7 @@ describe API::Runner do
           end
 
           context 'when pipeline have jobs with artifacts' do
-            let!(:job) { create(:ci_build_tag, :artifacts, pipeline: pipeline, name: 'spinach', stage: 'test', stage_idx: 0) }
+            let!(:job) { create(:ci_build, :tag, :artifacts, pipeline: pipeline, name: 'spinach', stage: 'test', stage_idx: 0) }
             let!(:test_job) { create(:ci_build, pipeline: pipeline, name: 'deploy', stage: 'deploy', stage_idx: 1) }
 
             before do
@@ -478,8 +478,8 @@ describe API::Runner do
           end
 
           context 'when explicit dependencies are defined' do
-            let!(:job) { create(:ci_build_tag, pipeline: pipeline, name: 'spinach', stage: 'test', stage_idx: 0) }
-            let!(:job2) { create(:ci_build_tag, pipeline: pipeline, name: 'rubocop', stage: 'test', stage_idx: 0) }
+            let!(:job) { create(:ci_build, :tag, pipeline: pipeline, name: 'spinach', stage: 'test', stage_idx: 0) }
+            let!(:job2) { create(:ci_build, :tag, pipeline: pipeline, name: 'rubocop', stage: 'test', stage_idx: 0) }
             let!(:test_job) do
               create(:ci_build, pipeline: pipeline, token: 'test-job-token', name: 'deploy',
                                 stage: 'deploy', stage_idx: 1,
@@ -502,8 +502,8 @@ describe API::Runner do
           end
 
           context 'when dependencies is an empty array' do
-            let!(:job) { create(:ci_build_tag, pipeline: pipeline, name: 'spinach', stage: 'test', stage_idx: 0) }
-            let!(:job2) { create(:ci_build_tag, pipeline: pipeline, name: 'rubocop', stage: 'test', stage_idx: 0) }
+            let!(:job) { create(:ci_build, :tag, pipeline: pipeline, name: 'spinach', stage: 'test', stage_idx: 0) }
+            let!(:job2) { create(:ci_build, :tag, pipeline: pipeline, name: 'rubocop', stage: 'test', stage_idx: 0) }
             let!(:empty_dependencies_job) do
               create(:ci_build, pipeline: pipeline, token: 'test-job-token', name: 'empty_dependencies_job',
                                 stage: 'deploy', stage_idx: 1,
diff --git a/spec/routing/project_routing_spec.rb b/spec/routing/project_routing_spec.rb
index 39d44245c3f..fb1281a6b42 100644
--- a/spec/routing/project_routing_spec.rb
+++ b/spec/routing/project_routing_spec.rb
@@ -426,18 +426,23 @@ describe 'project routing' do
     end
   end
 
-  #     project_milestones GET    /:project_id/milestones(.:format)          milestones#index
-  #                        POST   /:project_id/milestones(.:format)          milestones#create
-  #  new_project_milestone GET    /:project_id/milestones/new(.:format)      milestones#new
-  # edit_project_milestone GET    /:project_id/milestones/:id/edit(.:format) milestones#edit
-  #      project_milestone GET    /:project_id/milestones/:id(.:format)      milestones#show
-  #                        PUT    /:project_id/milestones/:id(.:format)      milestones#update
-  #                        DELETE /:project_id/milestones/:id(.:format)      milestones#destroy
+  #     project_milestones    GET    /:project_id/milestones(.:format)          milestones#index
+  #                           POST   /:project_id/milestones(.:format)          milestones#create
+  #  new_project_milestone    GET    /:project_id/milestones/new(.:format)      milestones#new
+  # edit_project_milestone    GET    /:project_id/milestones/:id/edit(.:format) milestones#edit
+  #      project_milestone    GET    /:project_id/milestones/:id(.:format)      milestones#show
+  #                           PUT    /:project_id/milestones/:id(.:format)      milestones#update
+  #                           DELETE /:project_id/milestones/:id(.:format)      milestones#destroy
+  # promote_project_milestone POST /:project_id/milestones/:id/promote          milestones#promote
   describe Projects::MilestonesController, 'routing' do
     it_behaves_like 'RESTful project resources' do
       let(:controller) { 'milestones' }
       let(:actions) { [:index, :create, :new, :edit, :show, :update] }
     end
+
+    it 'to #promote' do
+      expect(post('/gitlab/gitlabhq/milestones/1/promote')).to route_to('projects/milestones#promote', namespace_id: 'gitlab', project_id: 'gitlabhq', id: "1")
+    end
   end
 
   # project_labels GET    /:project_id/labels(.:format) labels#index
diff --git a/spec/serializers/issue_serializer_spec.rb b/spec/serializers/issue_serializer_spec.rb
new file mode 100644
index 00000000000..75578816e75
--- /dev/null
+++ b/spec/serializers/issue_serializer_spec.rb
@@ -0,0 +1,27 @@
+require 'spec_helper'
+
+describe IssueSerializer do
+  let(:resource) { create(:issue) }
+  let(:user)     { create(:user) }
+  let(:json_entity) do
+    described_class.new(current_user: user)
+      .represent(resource, serializer: serializer)
+      .with_indifferent_access
+  end
+
+  context 'non-sidebar issue serialization' do
+    let(:serializer) { nil }
+
+    it 'matches issue json schema' do
+      expect(json_entity).to match_schema('entities/issue')
+    end
+  end
+
+  context 'sidebar issue serialization' do
+    let(:serializer) { 'sidebar' }
+
+    it 'matches sidebar issue json schema' do
+      expect(json_entity).to match_schema('entities/issue_sidebar')
+    end
+  end
+end
diff --git a/spec/serializers/merge_request_basic_serializer_spec.rb b/spec/serializers/merge_request_basic_serializer_spec.rb
index 4daf5a59d0c..1fad8e6bc5d 100644
--- a/spec/serializers/merge_request_basic_serializer_spec.rb
+++ b/spec/serializers/merge_request_basic_serializer_spec.rb
@@ -4,9 +4,13 @@ describe MergeRequestBasicSerializer do
   let(:resource) { create(:merge_request) }
   let(:user)     { create(:user) }
 
-  subject { described_class.new.represent(resource) }
+  let(:json_entity) do
+    described_class.new(current_user: user)
+      .represent(resource, serializer: 'basic')
+      .with_indifferent_access
+  end
 
-  it 'has important MergeRequest attributes' do
-    expect(subject).to include(:merge_status)
+  it 'matches basic merge request json' do
+    expect(json_entity).to match_schema('entities/merge_request_basic')
   end
 end
diff --git a/spec/serializers/merge_request_serializer_spec.rb b/spec/serializers/merge_request_serializer_spec.rb
index 73fbecc153d..e3abefa6d63 100644
--- a/spec/serializers/merge_request_serializer_spec.rb
+++ b/spec/serializers/merge_request_serializer_spec.rb
@@ -9,11 +9,11 @@ describe MergeRequestSerializer do
   end
 
   describe '#represent' do
-    let(:opts) { { basic: basic } }
-    subject { serializer.represent(merge_request, basic: basic) }
+    let(:opts) { { serializer: serializer_entity } }
+    subject { serializer.represent(merge_request, serializer: serializer_entity) }
 
-    context 'when basic param is truthy' do
-      let(:basic) { true }
+    context 'when passing basic serializer param' do
+      let(:serializer_entity) { 'basic' }
 
       it 'calls super class #represent with correct params' do
         expect_any_instance_of(BaseSerializer).to receive(:represent)
@@ -23,8 +23,8 @@ describe MergeRequestSerializer do
       end
     end
 
-    context 'when basic param is falsy' do
-      let(:basic) { false }
+    context 'when serializer param is falsy' do
+      let(:serializer_entity) { nil }
 
       it 'calls super class #represent with correct params' do
         expect_any_instance_of(BaseSerializer).to receive(:represent)
diff --git a/spec/services/merge_requests/merge_service_spec.rb b/spec/services/merge_requests/merge_service_spec.rb
index d1043f99b5a..ac196e92601 100644
--- a/spec/services/merge_requests/merge_service_spec.rb
+++ b/spec/services/merge_requests/merge_service_spec.rb
@@ -12,55 +12,6 @@ describe MergeRequests::MergeService do
   end
 
   describe '#execute' do
-    context 'MergeRequest#merge_jid' do
-      let(:service) do
-        described_class.new(project, user, commit_message: 'Awesome message')
-      end
-
-      before do
-        merge_request.update_column(:merge_jid, 'hash-123')
-      end
-
-      it 'is cleaned when no error is raised' do
-        service.execute(merge_request)
-
-        expect(merge_request.reload.merge_jid).to be_nil
-      end
-
-      it 'is cleaned when expected error is raised' do
-        allow(service).to receive(:commit).and_raise(described_class::MergeError)
-
-        service.execute(merge_request)
-
-        expect(merge_request.reload.merge_jid).to be_nil
-      end
-
-      it 'is cleaned when merge request is not mergeable' do
-        allow(merge_request).to receive(:mergeable?).and_return(false)
-
-        service.execute(merge_request)
-
-        expect(merge_request.reload.merge_jid).to be_nil
-      end
-
-      it 'is cleaned when no source is found' do
-        allow(merge_request).to receive(:diff_head_sha).and_return(nil)
-
-        service.execute(merge_request)
-
-        expect(merge_request.reload.merge_jid).to be_nil
-      end
-
-      it 'is not cleaned when unexpected error is raised' do
-        service = described_class.new(project, user, commit_message: 'Awesome message')
-        allow(service).to receive(:commit).and_raise(StandardError)
-
-        expect { service.execute(merge_request) }.to raise_error(StandardError)
-
-        expect(merge_request.reload.merge_jid).to be_present
-      end
-    end
-
     context 'valid params' do
       let(:service) { described_class.new(project, user, commit_message: 'Awesome message') }
 
diff --git a/spec/services/milestones/promote_service_spec.rb b/spec/services/milestones/promote_service_spec.rb
new file mode 100644
index 00000000000..9f2df6d6d19
--- /dev/null
+++ b/spec/services/milestones/promote_service_spec.rb
@@ -0,0 +1,77 @@
+require 'spec_helper'
+
+describe Milestones::PromoteService do
+  let(:group) { create(:group) }
+  let(:project) { create(:project, namespace: group) }
+  let(:user) { create(:user) }
+  let(:milestone_title) { 'project milestone' }
+  let(:milestone) { create(:milestone, project: project, title: milestone_title) }
+  let(:service) { described_class.new(project, user) }
+
+  describe '#execute' do
+    before do
+      group.add_master(user)
+    end
+
+    context 'validations' do
+      it 'raises error if milestone does not belong to a project' do
+        allow(milestone).to receive(:project_milestone?).and_return(false)
+
+        expect { service.execute(milestone) }.to raise_error(described_class::PromoteMilestoneError)
+      end
+
+      it 'raises error if project does not belong to a group' do
+        project.update(namespace: user.namespace)
+
+        expect { service.execute(milestone) }.to raise_error(described_class::PromoteMilestoneError)
+      end
+    end
+
+    context 'without duplicated milestone titles across projects' do
+      it 'promotes project milestone to group milestone' do
+        promoted_milestone = service.execute(milestone)
+
+        expect(promoted_milestone).to be_group_milestone
+      end
+
+      it 'sets issuables with new promoted milestone' do
+        issue = create(:issue, milestone: milestone, project: project)
+        merge_request = create(:merge_request, milestone: milestone, source_project: project)
+
+        promoted_milestone = service.execute(milestone)
+
+        expect(promoted_milestone).to be_group_milestone
+        expect(issue.reload.milestone).to eq(promoted_milestone)
+        expect(merge_request.reload.milestone).to eq(promoted_milestone)
+      end
+    end
+
+    context 'with duplicated milestone titles across projects' do
+      let(:project_2) { create(:project, namespace: group) }
+      let!(:milestone_2) { create(:milestone, project: project_2, title: milestone_title) }
+
+      it 'deletes project milestones with the same title' do
+        promoted_milestone = service.execute(milestone)
+
+        expect(promoted_milestone).to be_group_milestone
+        expect(promoted_milestone).to be_valid
+        expect(Milestone.exists?(milestone.id)).to be_falsy
+        expect(Milestone.exists?(milestone_2.id)).to be_falsy
+      end
+
+      it 'sets all issuables with new promoted milestone' do
+        issue = create(:issue, milestone: milestone, project: project)
+        issue_2 = create(:issue, milestone: milestone_2, project: project_2)
+        merge_request = create(:merge_request, milestone: milestone, source_project: project)
+        merge_request_2 = create(:merge_request, milestone: milestone_2, source_project: project_2)
+
+        promoted_milestone = service.execute(milestone)
+
+        expect(issue.reload.milestone).to eq(promoted_milestone)
+        expect(issue_2.reload.milestone).to eq(promoted_milestone)
+        expect(merge_request.reload.milestone).to eq(promoted_milestone)
+        expect(merge_request_2.reload.milestone).to eq(promoted_milestone)
+      end
+    end
+  end
+end
diff --git a/spec/services/projects/group_links/create_service_spec.rb b/spec/services/projects/group_links/create_service_spec.rb
new file mode 100644
index 00000000000..ffb270d277e
--- /dev/null
+++ b/spec/services/projects/group_links/create_service_spec.rb
@@ -0,0 +1,22 @@
+require 'spec_helper'
+
+describe Projects::GroupLinks::CreateService, '#execute' do
+  let(:user) { create :user }
+  let(:group) { create :group }
+  let(:project) { create :project }
+  let(:opts) do
+    {
+      link_group_access: '30',
+      expires_at: nil
+    }
+  end
+  let(:subject) { described_class.new(project, user, opts) }
+
+  it 'adds group to project' do
+    expect { subject.execute(group) }.to change { project.project_group_links.count }.from(0).to(1)
+  end
+
+  it 'returns false if group is blank' do
+    expect { subject.execute(nil) }.not_to change { project.project_group_links.count }
+  end
+end
diff --git a/spec/services/projects/group_links/destroy_service_spec.rb b/spec/services/projects/group_links/destroy_service_spec.rb
new file mode 100644
index 00000000000..336ee01ae50
--- /dev/null
+++ b/spec/services/projects/group_links/destroy_service_spec.rb
@@ -0,0 +1,16 @@
+require 'spec_helper'
+
+describe Projects::GroupLinks::DestroyService, '#execute' do
+  let(:group_link) { create :project_group_link }
+  let(:project) { group_link.project }
+  let(:user) { create :user }
+  let(:subject) { described_class.new(project, user) }
+
+  it 'removes group from project' do
+    expect { subject.execute(group_link) }.to change { project.project_group_links.count }.from(1).to(0)
+  end
+
+  it 'returns false if group_link is blank' do
+    expect { subject.execute(nil) }.not_to change { project.project_group_links.count }
+  end
+end
diff --git a/spec/services/projects/hashed_storage_migration_service_spec.rb b/spec/services/projects/hashed_storage_migration_service_spec.rb
index aa1988d29d6..b71b47c59b6 100644
--- a/spec/services/projects/hashed_storage_migration_service_spec.rb
+++ b/spec/services/projects/hashed_storage_migration_service_spec.rb
@@ -23,7 +23,7 @@ describe Projects::HashedStorageMigrationService do
       it 'updates project to be hashed and not read-only' do
         service.execute
 
-        expect(project.hashed_storage?).to be_truthy
+        expect(project.hashed_storage?(:repository)).to be_truthy
         expect(project.repository_read_only).to be_falsey
       end
 
diff --git a/spec/services/system_hooks_service_spec.rb b/spec/services/system_hooks_service_spec.rb
index 8b5d9187785..8f7aea533dc 100644
--- a/spec/services/system_hooks_service_spec.rb
+++ b/spec/services/system_hooks_service_spec.rb
@@ -63,6 +63,12 @@ describe SystemHooksService do
         :group_id, :user_id, :user_username, :user_name, :user_email, :group_access
       )
     end
+
+    it 'includes the correct project visibility level' do
+      data = event_data(project, :create)
+
+      expect(data[:project_visibility]).to eq('private')
+    end
   end
 
   context 'event names' do
diff --git a/spec/support/bare_repo_operations.rb b/spec/support/bare_repo_operations.rb
new file mode 100644
index 00000000000..38d11992dc2
--- /dev/null
+++ b/spec/support/bare_repo_operations.rb
@@ -0,0 +1,60 @@
+require 'zlib'
+
+class BareRepoOperations
+  # The ID of empty tree.
+  # See http://stackoverflow.com/a/40884093/1856239 and https://github.com/git/git/blob/3ad8b5bf26362ac67c9020bf8c30eee54a84f56d/cache.h#L1011-L1012
+  EMPTY_TREE_ID = '4b825dc642cb6eb9a060e54bf8d69288fbee4904'.freeze
+
+  include Gitlab::Popen
+
+  def initialize(path_to_repo)
+    @path_to_repo = path_to_repo
+  end
+
+  # Based on https://stackoverflow.com/a/25556917/1856239
+  def commit_file(file, dst_path, branch = 'master')
+    head_id = execute(['show', '--format=format:%H', '--no-patch', branch], allow_failure: true)[0] || EMPTY_TREE_ID
+
+    execute(['read-tree', '--empty'])
+    execute(['read-tree', head_id])
+
+    blob_id = execute(['hash-object', '--stdin', '-w']) do |stdin|
+      stdin.write(file.read)
+    end
+
+    execute(['update-index', '--add', '--cacheinfo', '100644', blob_id[0], dst_path])
+
+    tree_id = execute(['write-tree'])
+
+    commit_tree_args = ['commit-tree', tree_id[0], '-m', "Add #{dst_path}"]
+    commit_tree_args += ['-p', head_id] unless head_id == EMPTY_TREE_ID
+    commit_id = execute(commit_tree_args)
+
+    execute(['update-ref', "refs/heads/#{branch}", commit_id[0]])
+  end
+
+  private
+
+  def execute(args, allow_failure: false)
+    output, status = popen(base_args + args, nil) do |stdin|
+      yield stdin if block_given?
+    end
+
+    unless status.zero?
+      if allow_failure
+        return []
+      else
+        raise "Got a non-zero exit code while calling out `#{args.join(' ')}`: #{output}"
+      end
+    end
+
+    output.split("\n")
+  end
+
+  def base_args
+    [
+      Gitlab.config.git.bin_path,
+      "--git-dir=#{@path_to_repo}"
+    ]
+  end
+end
diff --git a/spec/support/jira_service_helper.rb b/spec/support/jira_service_helper.rb
index 0b5f66597fd..88a7aeba461 100644
--- a/spec/support/jira_service_helper.rb
+++ b/spec/support/jira_service_helper.rb
@@ -6,6 +6,8 @@ module JiraServiceHelper
     properties = {
       title: "JIRA tracker",
       url: JIRA_URL,
+      username: 'jira-user',
+      password: 'my-secret-password',
       project_key: "JIRA",
       jira_issue_transition_id: '1'
     }
diff --git a/spec/support/update_invalid_issuable.rb b/spec/support/update_invalid_issuable.rb
index 50a1d4a56e2..1490287681b 100644
--- a/spec/support/update_invalid_issuable.rb
+++ b/spec/support/update_invalid_issuable.rb
@@ -25,13 +25,11 @@ shared_examples 'update invalid issuable' do |klass|
         .and_raise(ActiveRecord::StaleObjectError.new(issuable, :save))
     end
 
-    if klass == MergeRequest
-      it 'renders edit when format is html' do
-        put :update, params
+    it 'renders edit when format is html' do
+      put :update, params
 
-        expect(response).to render_template(:edit)
-        expect(assigns[:conflict]).to be_truthy
-      end
+      expect(response).to render_template(:edit)
+      expect(assigns[:conflict]).to be_truthy
     end
 
     it 'renders json error message when format is json' do
@@ -44,17 +42,16 @@ shared_examples 'update invalid issuable' do |klass|
     end
   end
 
-  if klass == MergeRequest
-    context 'when updating an invalid issuable' do
-      before do
-        params[:merge_request][:title] = ""
-      end
+  context 'when updating an invalid issuable' do
+    before do
+      key = klass == Issue ? :issue : :merge_request
+      params[key][:title] = ""
+    end
 
-      it 'renders edit when merge request is invalid' do
-        put :update, params
+    it 'renders edit when merge request is invalid' do
+      put :update, params
 
-        expect(response).to render_template(:edit)
-      end
+      expect(response).to render_template(:edit)
     end
   end
 end
diff --git a/spec/uploaders/file_uploader_spec.rb b/spec/uploaders/file_uploader_spec.rb
index 2492d56a5cf..f52b2bab05b 100644
--- a/spec/uploaders/file_uploader_spec.rb
+++ b/spec/uploaders/file_uploader_spec.rb
@@ -3,25 +3,51 @@ require 'spec_helper'
 describe FileUploader do
   let(:uploader) { described_class.new(build_stubbed(:project)) }
 
-  describe '.absolute_path' do
-    it 'returns the correct absolute path by building it dynamically' do
-      project = build_stubbed(:project)
-      upload = double(model: project, path: 'secret/foo.jpg')
+  context 'legacy storage' do
+    let(:project) { build_stubbed(:project) }
 
-      dynamic_segment = project.path_with_namespace
+    describe '.absolute_path' do
+      it 'returns the correct absolute path by building it dynamically' do
+        upload = double(model: project, path: 'secret/foo.jpg')
 
-      expect(described_class.absolute_path(upload))
-        .to end_with("#{dynamic_segment}/secret/foo.jpg")
+        dynamic_segment = project.full_path
+
+        expect(described_class.absolute_path(upload))
+          .to end_with("#{dynamic_segment}/secret/foo.jpg")
+      end
+    end
+
+    describe "#store_dir" do
+      it "stores in the namespace path" do
+        uploader = described_class.new(project)
+
+        expect(uploader.store_dir).to include(project.full_path)
+        expect(uploader.store_dir).not_to include("system")
+      end
     end
   end
 
-  describe "#store_dir" do
-    it "stores in the namespace path" do
-      project = build_stubbed(:project)
-      uploader = described_class.new(project)
+  context 'hashed storage' do
+    let(:project) { build_stubbed(:project, :hashed) }
+
+    describe '.absolute_path' do
+      it 'returns the correct absolute path by building it dynamically' do
+        upload = double(model: project, path: 'secret/foo.jpg')
+
+        dynamic_segment = project.disk_path
+
+        expect(described_class.absolute_path(upload))
+          .to end_with("#{dynamic_segment}/secret/foo.jpg")
+      end
+    end
+
+    describe "#store_dir" do
+      it "stores in the namespace path" do
+        uploader = described_class.new(project)
 
-      expect(uploader.store_dir).to include(project.path_with_namespace)
-      expect(uploader.store_dir).not_to include("system")
+        expect(uploader.store_dir).to include(project.disk_path)
+        expect(uploader.store_dir).not_to include("system")
+      end
     end
   end
 
diff --git a/spec/views/help/index.html.haml_spec.rb b/spec/views/help/index.html.haml_spec.rb
index c030129559e..0a78606171d 100644
--- a/spec/views/help/index.html.haml_spec.rb
+++ b/spec/views/help/index.html.haml_spec.rb
@@ -25,6 +25,14 @@ describe 'help/index' do
     end
   end
 
+  describe 'instance configuration link' do
+    it 'is visible to guests' do
+      render
+
+      expect(rendered).to have_link(nil, help_instance_configuration_url)
+    end
+  end
+
   def stub_user(user = double)
     allow(view).to receive(:user_signed_in?).and_return(user)
   end
diff --git a/spec/views/help/instance_configuration.html.haml_spec.rb b/spec/views/help/instance_configuration.html.haml_spec.rb
new file mode 100644
index 00000000000..f30b5881fde
--- /dev/null
+++ b/spec/views/help/instance_configuration.html.haml_spec.rb
@@ -0,0 +1,29 @@
+require 'rails_helper'
+
+describe 'help/instance_configuration' do
+  describe 'General Sections:' do
+    let(:instance_configuration) { build(:instance_configuration)}
+    let(:settings) { instance_configuration.settings }
+    let(:ssh_settings) { settings[:ssh_algorithms_hashes] }
+
+    before do
+      assign(:instance_configuration, instance_configuration)
+    end
+
+    it 'has links to several sections' do
+      render
+
+      expect(rendered).to have_link(nil, '#ssh-host-keys-fingerprints') if ssh_settings.any?
+      expect(rendered).to have_link(nil, '#gitlab-pages')
+      expect(rendered).to have_link(nil, '#gitlab-ci')
+    end
+
+    it 'has several sections' do
+      render
+
+      expect(rendered).to have_css('h2#ssh-host-keys-fingerprints') if ssh_settings.any?
+      expect(rendered).to have_css('h2#gitlab-pages')
+      expect(rendered).to have_css('h2#gitlab-ci')
+    end
+  end
+end
diff --git a/spec/views/shared/issuable/_participants.html.haml.rb b/spec/views/shared/issuable/_participants.html.haml.rb
deleted file mode 100644
index 51059d4c0d7..00000000000
--- a/spec/views/shared/issuable/_participants.html.haml.rb
+++ /dev/null
@@ -1,26 +0,0 @@
-require 'spec_helper'
-require 'nokogiri'
-
-describe 'shared/issuable/_participants.html.haml' do
-  let(:project) { create(:project) }
-  let(:participants)  { create_list(:user, 100) }
-
-  before do
-    allow(view).to receive_messages(project: project,
-                                    participants: participants)
-  end
-
-  it 'renders lazy loaded avatars' do
-    render 'shared/issuable/participants'
-
-    html = Nokogiri::HTML(rendered)
-
-    avatars = html.css('.participants-author img')
-
-    avatars.each do |avatar|
-      expect(avatar[:class]).to include('lazy')
-      expect(avatar[:src]).to eql(LazyImageTagHelper.placeholder_image)
-      expect(avatar[:"data-src"]).to match('http://www.gravatar.com/avatar/')
-    end
-  end
-end
diff --git a/spec/workers/stuck_merge_jobs_worker_spec.rb b/spec/workers/stuck_merge_jobs_worker_spec.rb
index a5ad78393c9..f8b55e873df 100644
--- a/spec/workers/stuck_merge_jobs_worker_spec.rb
+++ b/spec/workers/stuck_merge_jobs_worker_spec.rb
@@ -12,8 +12,13 @@ describe StuckMergeJobsWorker do
 
         worker.perform
 
-        expect(mr_with_sha.reload).to be_merged
-        expect(mr_without_sha.reload).to be_opened
+        mr_with_sha.reload
+        mr_without_sha.reload
+
+        expect(mr_with_sha).to be_merged
+        expect(mr_without_sha).to be_opened
+        expect(mr_with_sha.merge_jid).to be_present
+        expect(mr_without_sha.merge_jid).to be_nil
       end
 
       it 'updates merge request to opened when locked but has not been merged' do
diff --git a/vendor/assets/javascripts/autosize.js b/vendor/assets/javascripts/autosize.js
deleted file mode 100644
index cfa49e72c50..00000000000
--- a/vendor/assets/javascripts/autosize.js
+++ /dev/null
@@ -1,243 +0,0 @@
-/*!
-	Autosize 3.0.14
-	license: MIT
-	http://www.jacklmoore.com/autosize
-*/
-(function (global, factory) {
-	if (typeof define === 'function' && define.amd) {
-		define(['exports', 'module'], factory);
-	} else if (typeof exports !== 'undefined' && typeof module !== 'undefined') {
-		factory(exports, module);
-	} else {
-		var mod = {
-			exports: {}
-		};
-		factory(mod.exports, mod);
-		global.autosize = mod.exports;
-	}
-})(this, function (exports, module) {
-	'use strict';
-
-	var set = typeof Set === 'function' ? new Set() : (function () {
-		var list = [];
-
-		return {
-			has: function has(key) {
-				return Boolean(list.indexOf(key) > -1);
-			},
-			add: function add(key) {
-				list.push(key);
-			},
-			'delete': function _delete(key) {
-				list.splice(list.indexOf(key), 1);
-			} };
-	})();
-
-	function assign(ta) {
-		var _ref = arguments[1] === undefined ? {} : arguments[1];
-
-		var _ref$setOverflowX = _ref.setOverflowX;
-		var setOverflowX = _ref$setOverflowX === undefined ? true : _ref$setOverflowX;
-		var _ref$setOverflowY = _ref.setOverflowY;
-		var setOverflowY = _ref$setOverflowY === undefined ? true : _ref$setOverflowY;
-
-		if (!ta || !ta.nodeName || ta.nodeName !== 'TEXTAREA' || set.has(ta)) return;
-
-		var heightOffset = null;
-		var overflowY = null;
-		var clientWidth = ta.clientWidth;
-
-		function init() {
-			var style = window.getComputedStyle(ta, null);
-
-			overflowY = style.overflowY;
-
-			if (style.resize === 'vertical') {
-				ta.style.resize = 'none';
-			} else if (style.resize === 'both') {
-				ta.style.resize = 'horizontal';
-			}
-
-			if (style.boxSizing === 'content-box') {
-				heightOffset = -(parseFloat(style.paddingTop) + parseFloat(style.paddingBottom));
-			} else {
-				heightOffset = parseFloat(style.borderTopWidth) + parseFloat(style.borderBottomWidth);
-			}
-			// Fix when a textarea is not on document body and heightOffset is Not a Number
-			if (isNaN(heightOffset)) {
-				heightOffset = 0;
-			}
-
-			update();
-		}
-
-		function changeOverflow(value) {
-			{
-				// Chrome/Safari-specific fix:
-				// When the textarea y-overflow is hidden, Chrome/Safari do not reflow the text to account for the space
-				// made available by removing the scrollbar. The following forces the necessary text reflow.
-				var width = ta.style.width;
-				ta.style.width = '0px';
-				// Force reflow:
-				/* jshint ignore:start */
-				ta.offsetWidth;
-				/* jshint ignore:end */
-				ta.style.width = width;
-			}
-
-			overflowY = value;
-
-			if (setOverflowY) {
-				ta.style.overflowY = value;
-			}
-
-			resize();
-		}
-
-		function resize() {
-			var htmlTop = window.pageYOffset;
-			var bodyTop = document.body.scrollTop;
-			var originalHeight = ta.style.height;
-
-			ta.style.height = 'auto';
-
-			var endHeight = ta.scrollHeight + heightOffset;
-
-			if (ta.scrollHeight === 0) {
-				// If the scrollHeight is 0, then the element probably has display:none or is detached from the DOM.
-				ta.style.height = originalHeight;
-				return;
-			}
-
-			ta.style.height = endHeight + 'px';
-
-			// used to check if an update is actually necessary on window.resize
-			clientWidth = ta.clientWidth;
-
-			// prevents scroll-position jumping
-			document.documentElement.scrollTop = htmlTop;
-			document.body.scrollTop = bodyTop;
-		}
-
-		function update() {
-			var startHeight = ta.style.height;
-
-			resize();
-
-			var style = window.getComputedStyle(ta, null);
-
-			if (style.height !== ta.style.height) {
-				if (overflowY !== 'visible') {
-					changeOverflow('visible');
-				}
-			} else {
-				if (overflowY !== 'hidden') {
-					changeOverflow('hidden');
-				}
-			}
-
-			if (startHeight !== ta.style.height) {
-				var evt = document.createEvent('Event');
-				evt.initEvent('autosize:resized', true, false);
-				ta.dispatchEvent(evt);
-			}
-		}
-
-		var pageResize = function pageResize() {
-			if (ta.clientWidth !== clientWidth) {
-				update();
-			}
-		};
-
-		var destroy = (function (style) {
-			window.removeEventListener('resize', pageResize, false);
-			ta.removeEventListener('input', update, false);
-			ta.removeEventListener('keyup', update, false);
-			ta.removeEventListener('autosize:destroy', destroy, false);
-			ta.removeEventListener('autosize:update', update, false);
-			set['delete'](ta);
-
-			Object.keys(style).forEach(function (key) {
-				ta.style[key] = style[key];
-			});
-		}).bind(ta, {
-			height: ta.style.height,
-			resize: ta.style.resize,
-			overflowY: ta.style.overflowY,
-			overflowX: ta.style.overflowX,
-			wordWrap: ta.style.wordWrap });
-
-		ta.addEventListener('autosize:destroy', destroy, false);
-
-		// IE9 does not fire onpropertychange or oninput for deletions,
-		// so binding to onkeyup to catch most of those events.
-		// There is no way that I know of to detect something like 'cut' in IE9.
-		if ('onpropertychange' in ta && 'oninput' in ta) {
-			ta.addEventListener('keyup', update, false);
-		}
-
-		window.addEventListener('resize', pageResize, false);
-		ta.addEventListener('input', update, false);
-		ta.addEventListener('autosize:update', update, false);
-		set.add(ta);
-
-		if (setOverflowX) {
-			ta.style.overflowX = 'hidden';
-			ta.style.wordWrap = 'break-word';
-		}
-
-		init();
-	}
-
-	function destroy(ta) {
-		if (!(ta && ta.nodeName && ta.nodeName === 'TEXTAREA')) return;
-		var evt = document.createEvent('Event');
-		evt.initEvent('autosize:destroy', true, false);
-		ta.dispatchEvent(evt);
-	}
-
-	function update(ta) {
-		if (!(ta && ta.nodeName && ta.nodeName === 'TEXTAREA')) return;
-		var evt = document.createEvent('Event');
-		evt.initEvent('autosize:update', true, false);
-		ta.dispatchEvent(evt);
-	}
-
-	var autosize = null;
-
-	// Do nothing in Node.js environment and IE8 (or lower)
-	if (typeof window === 'undefined' || typeof window.getComputedStyle !== 'function') {
-		autosize = function (el) {
-			return el;
-		};
-		autosize.destroy = function (el) {
-			return el;
-		};
-		autosize.update = function (el) {
-			return el;
-		};
-	} else {
-		autosize = function (el, options) {
-			if (el) {
-				Array.prototype.forEach.call(el.length ? el : [el], function (x) {
-					return assign(x, options);
-				});
-			}
-			return el;
-		};
-		autosize.destroy = function (el) {
-			if (el) {
-				Array.prototype.forEach.call(el.length ? el : [el], destroy);
-			}
-			return el;
-		};
-		autosize.update = function (el) {
-			if (el) {
-				Array.prototype.forEach.call(el.length ? el : [el], update);
-			}
-			return el;
-		};
-	}
-
-	module.exports = autosize;
-});
\ No newline at end of file
diff --git a/vendor/assets/javascripts/fuzzaldrin-plus.js b/vendor/assets/javascripts/fuzzaldrin-plus.js
deleted file mode 100644
index 1985e3f8f6c..00000000000
--- a/vendor/assets/javascripts/fuzzaldrin-plus.js
+++ /dev/null
@@ -1,1161 +0,0 @@
-/*!
- * fuzzaldrin-plus.js - 0.3.1
- * https://github.com/jeancroy/fuzzaldrin-plus
- *
- * Copyright 2016 - Jean Christophe Roy
- * Released under the MIT license
- * https://github.com/jeancroy/fuzzaldrin-plus/raw/master/LICENSE.md
- */
-(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
-fuzzaldrinPlus = require('fuzzaldrin-plus');
-
-},{"fuzzaldrin-plus":3}],2:[function(require,module,exports){
-(function() {
-  var PathSeparator, legacy_scorer, pluckCandidates, scorer, sortCandidates;
-
-  scorer = require('./scorer');
-
-  legacy_scorer = require('./legacy');
-
-  pluckCandidates = function(a) {
-    return a.candidate;
-  };
-
-  sortCandidates = function(a, b) {
-    return b.score - a.score;
-  };
-
-  PathSeparator = require('path').sep;
-
-  module.exports = function(candidates, query, _arg) {
-    var allowErrors, bAllowErrors, bKey, candidate, coreQuery, key, legacy, maxInners, maxResults, prepQuery, queryHasSlashes, score, scoredCandidates, spotLeft, string, _i, _j, _len, _len1, _ref;
-    _ref = _arg != null ? _arg : {}, key = _ref.key, maxResults = _ref.maxResults, maxInners = _ref.maxInners, allowErrors = _ref.allowErrors, legacy = _ref.legacy;
-    scoredCandidates = [];
-    spotLeft = (maxInners != null) && maxInners > 0 ? maxInners : candidates.length;
-    bAllowErrors = !!allowErrors;
-    bKey = key != null;
-    prepQuery = scorer.prepQuery(query);
-    if (!legacy) {
-      for (_i = 0, _len = candidates.length; _i < _len; _i++) {
-        candidate = candidates[_i];
-        string = bKey ? candidate[key] : candidate;
-        if (!string) {
-          continue;
-        }
-        score = scorer.score(string, query, prepQuery, bAllowErrors);
-        if (score > 0) {
-          scoredCandidates.push({
-            candidate: candidate,
-            score: score
-          });
-          if (!--spotLeft) {
-            break;
-          }
-        }
-      }
-    } else {
-      queryHasSlashes = prepQuery.depth > 0;
-      coreQuery = prepQuery.core;
-      for (_j = 0, _len1 = candidates.length; _j < _len1; _j++) {
-        candidate = candidates[_j];
-        string = key != null ? candidate[key] : candidate;
-        if (!string) {
-          continue;
-        }
-        score = legacy_scorer.score(string, coreQuery, queryHasSlashes);
-        if (!queryHasSlashes) {
-          score = legacy_scorer.basenameScore(string, coreQuery, score);
-        }
-        if (score > 0) {
-          scoredCandidates.push({
-            candidate: candidate,
-            score: score
-          });
-        }
-      }
-    }
-    scoredCandidates.sort(sortCandidates);
-    candidates = scoredCandidates.map(pluckCandidates);
-    if (maxResults != null) {
-      candidates = candidates.slice(0, maxResults);
-    }
-    return candidates;
-  };
-
-}).call(this);
-
-},{"./legacy":4,"./scorer":6,"path":7}],3:[function(require,module,exports){
-(function() {
-  var PathSeparator, filter, legacy_scorer, matcher, prepQueryCache, scorer;
-
-  scorer = require('./scorer');
-
-  legacy_scorer = require('./legacy');
-
-  filter = require('./filter');
-
-  matcher = require('./matcher');
-
-  PathSeparator = require('path').sep;
-
-  prepQueryCache = null;
-
-  module.exports = {
-    filter: function(candidates, query, options) {
-      if (!((query != null ? query.length : void 0) && (candidates != null ? candidates.length : void 0))) {
-        return [];
-      }
-      return filter(candidates, query, options);
-    },
-    prepQuery: function(query) {
-      return scorer.prepQuery(query);
-    },
-    score: function(string, query, prepQuery, _arg) {
-      var allowErrors, coreQuery, legacy, queryHasSlashes, score, _ref;
-      _ref = _arg != null ? _arg : {}, allowErrors = _ref.allowErrors, legacy = _ref.legacy;
-      if (!((string != null ? string.length : void 0) && (query != null ? query.length : void 0))) {
-        return 0;
-      }
-      if (prepQuery == null) {
-        prepQuery = prepQueryCache && prepQueryCache.query === query ? prepQueryCache : (prepQueryCache = scorer.prepQuery(query));
-      }
-      if (!legacy) {
-        score = scorer.score(string, query, prepQuery, !!allowErrors);
-      } else {
-        queryHasSlashes = prepQuery.depth > 0;
-        coreQuery = prepQuery.core;
-        score = legacy_scorer.score(string, coreQuery, queryHasSlashes);
-        if (!queryHasSlashes) {
-          score = legacy_scorer.basenameScore(string, coreQuery, score);
-        }
-      }
-      return score;
-    },
-    match: function(string, query, prepQuery, _arg) {
-      var allowErrors, baseMatches, matches, query_lw, string_lw, _i, _ref, _results;
-      allowErrors = (_arg != null ? _arg : {}).allowErrors;
-      if (!string) {
-        return [];
-      }
-      if (!query) {
-        return [];
-      }
-      if (string === query) {
-        return (function() {
-          _results = [];
-          for (var _i = 0, _ref = string.length; 0 <= _ref ? _i < _ref : _i > _ref; 0 <= _ref ? _i++ : _i--){ _results.push(_i); }
-          return _results;
-        }).apply(this);
-      }
-      if (prepQuery == null) {
-        prepQuery = prepQueryCache && prepQueryCache.query === query ? prepQueryCache : (prepQueryCache = scorer.prepQuery(query));
-      }
-      if (!(allowErrors || scorer.isMatch(string, prepQuery.core_lw, prepQuery.core_up))) {
-        return [];
-      }
-      string_lw = string.toLowerCase();
-      query_lw = prepQuery.query_lw;
-      matches = matcher.match(string, string_lw, prepQuery);
-      if (matches.length === 0) {
-        return matches;
-      }
-      if (string.indexOf(PathSeparator) > -1) {
-        baseMatches = matcher.basenameMatch(string, string_lw, prepQuery);
-        matches = matcher.mergeMatches(matches, baseMatches);
-      }
-      return matches;
-    }
-  };
-
-}).call(this);
-
-},{"./filter":2,"./legacy":4,"./matcher":5,"./scorer":6,"path":7}],4:[function(require,module,exports){
-(function() {
-  var PathSeparator, queryIsLastPathSegment;
-
-  PathSeparator = require('path').sep;
-
-  exports.basenameScore = function(string, query, score) {
-    var base, depth, index, lastCharacter, segmentCount, slashCount;
-    index = string.length - 1;
-    while (string[index] === PathSeparator) {
-      index--;
-    }
-    slashCount = 0;
-    lastCharacter = index;
-    base = null;
-    while (index >= 0) {
-      if (string[index] === PathSeparator) {
-        slashCount++;
-        if (base == null) {
-          base = string.substring(index + 1, lastCharacter + 1);
-        }
-      } else if (index === 0) {
-        if (lastCharacter < string.length - 1) {
-          if (base == null) {
-            base = string.substring(0, lastCharacter + 1);
-          }
-        } else {
-          if (base == null) {
-            base = string;
-          }
-        }
-      }
-      index--;
-    }
-    if (base === string) {
-      score *= 2;
-    } else if (base) {
-      score += exports.score(base, query);
-    }
-    segmentCount = slashCount + 1;
-    depth = Math.max(1, 10 - segmentCount);
-    score *= depth * 0.01;
-    return score;
-  };
-
-  exports.score = function(string, query) {
-    var character, characterScore, indexInQuery, indexInString, lowerCaseIndex, minIndex, queryLength, queryScore, stringLength, totalCharacterScore, upperCaseIndex, _ref;
-    if (string === query) {
-      return 1;
-    }
-    if (queryIsLastPathSegment(string, query)) {
-      return 1;
-    }
-    totalCharacterScore = 0;
-    queryLength = query.length;
-    stringLength = string.length;
-    indexInQuery = 0;
-    indexInString = 0;
-    while (indexInQuery < queryLength) {
-      character = query[indexInQuery++];
-      lowerCaseIndex = string.indexOf(character.toLowerCase());
-      upperCaseIndex = string.indexOf(character.toUpperCase());
-      minIndex = Math.min(lowerCaseIndex, upperCaseIndex);
-      if (minIndex === -1) {
-        minIndex = Math.max(lowerCaseIndex, upperCaseIndex);
-      }
-      indexInString = minIndex;
-      if (indexInString === -1) {
-        return 0;
-      }
-      characterScore = 0.1;
-      if (string[indexInString] === character) {
-        characterScore += 0.1;
-      }
-      if (indexInString === 0 || string[indexInString - 1] === PathSeparator) {
-        characterScore += 0.8;
-      } else if ((_ref = string[indexInString - 1]) === '-' || _ref === '_' || _ref === ' ') {
-        characterScore += 0.7;
-      }
-      string = string.substring(indexInString + 1, stringLength);
-      totalCharacterScore += characterScore;
-    }
-    queryScore = totalCharacterScore / queryLength;
-    return ((queryScore * (queryLength / stringLength)) + queryScore) / 2;
-  };
-
-  queryIsLastPathSegment = function(string, query) {
-    if (string[string.length - query.length - 1] === PathSeparator) {
-      return string.lastIndexOf(query) === string.length - query.length;
-    }
-  };
-
-  exports.match = function(string, query, stringOffset) {
-    var character, indexInQuery, indexInString, lowerCaseIndex, matches, minIndex, queryLength, stringLength, upperCaseIndex, _i, _ref, _results;
-    if (stringOffset == null) {
-      stringOffset = 0;
-    }
-    if (string === query) {
-      return (function() {
-        _results = [];
-        for (var _i = stringOffset, _ref = stringOffset + string.length; stringOffset <= _ref ? _i < _ref : _i > _ref; stringOffset <= _ref ? _i++ : _i--){ _results.push(_i); }
-        return _results;
-      }).apply(this);
-    }
-    queryLength = query.length;
-    stringLength = string.length;
-    indexInQuery = 0;
-    indexInString = 0;
-    matches = [];
-    while (indexInQuery < queryLength) {
-      character = query[indexInQuery++];
-      lowerCaseIndex = string.indexOf(character.toLowerCase());
-      upperCaseIndex = string.indexOf(character.toUpperCase());
-      minIndex = Math.min(lowerCaseIndex, upperCaseIndex);
-      if (minIndex === -1) {
-        minIndex = Math.max(lowerCaseIndex, upperCaseIndex);
-      }
-      indexInString = minIndex;
-      if (indexInString === -1) {
-        return [];
-      }
-      matches.push(stringOffset + indexInString);
-      stringOffset += indexInString + 1;
-      string = string.substring(indexInString + 1, stringLength);
-    }
-    return matches;
-  };
-
-}).call(this);
-
-},{"path":7}],5:[function(require,module,exports){
-(function() {
-  var PathSeparator, scorer;
-
-  PathSeparator = require('path').sep;
-
-  scorer = require('./scorer');
-
-  exports.basenameMatch = function(subject, subject_lw, prepQuery) {
-    var basePos, depth, end;
-    end = subject.length - 1;
-    while (subject[end] === PathSeparator) {
-      end--;
-    }
-    basePos = subject.lastIndexOf(PathSeparator, end);
-    if (basePos === -1) {
-      return [];
-    }
-    depth = prepQuery.depth;
-    while (depth-- > 0) {
-      basePos = subject.lastIndexOf(PathSeparator, basePos - 1);
-      if (basePos === -1) {
-        return [];
-      }
-    }
-    basePos++;
-    end++;
-    return exports.match(subject.slice(basePos, end), subject_lw.slice(basePos, end), prepQuery, basePos);
-  };
-
-  exports.mergeMatches = function(a, b) {
-    var ai, bj, i, j, m, n, out;
-    m = a.length;
-    n = b.length;
-    if (n === 0) {
-      return a.slice();
-    }
-    if (m === 0) {
-      return b.slice();
-    }
-    i = -1;
-    j = 0;
-    bj = b[j];
-    out = [];
-    while (++i < m) {
-      ai = a[i];
-      while (bj <= ai && ++j < n) {
-        if (bj < ai) {
-          out.push(bj);
-        }
-        bj = b[j];
-      }
-      out.push(ai);
-    }
-    while (j < n) {
-      out.push(b[j++]);
-    }
-    return out;
-  };
-
-  exports.match = function(subject, subject_lw, prepQuery, offset) {
-    var DIAGONAL, LEFT, STOP, UP, acro_score, align, backtrack, csc_diag, csc_row, csc_score, i, j, m, matches, move, n, pos, query, query_lw, score, score_diag, score_row, score_up, si_lw, start, trace;
-    if (offset == null) {
-      offset = 0;
-    }
-    query = prepQuery.query;
-    query_lw = prepQuery.query_lw;
-    m = subject.length;
-    n = query.length;
-    acro_score = scorer.scoreAcronyms(subject, subject_lw, query, query_lw).score;
-    score_row = new Array(n);
-    csc_row = new Array(n);
-    STOP = 0;
-    UP = 1;
-    LEFT = 2;
-    DIAGONAL = 3;
-    trace = new Array(m * n);
-    pos = -1;
-    j = -1;
-    while (++j < n) {
-      score_row[j] = 0;
-      csc_row[j] = 0;
-    }
-    i = -1;
-    while (++i < m) {
-      score = 0;
-      score_up = 0;
-      csc_diag = 0;
-      si_lw = subject_lw[i];
-      j = -1;
-      while (++j < n) {
-        csc_score = 0;
-        align = 0;
-        score_diag = score_up;
-        if (query_lw[j] === si_lw) {
-          start = scorer.isWordStart(i, subject, subject_lw);
-          csc_score = csc_diag > 0 ? csc_diag : scorer.scoreConsecutives(subject, subject_lw, query, query_lw, i, j, start);
-          align = score_diag + scorer.scoreCharacter(i, j, start, acro_score, csc_score);
-        }
-        score_up = score_row[j];
-        csc_diag = csc_row[j];
-        if (score > score_up) {
-          move = LEFT;
-        } else {
-          score = score_up;
-          move = UP;
-        }
-        if (align > score) {
-          score = align;
-          move = DIAGONAL;
-        } else {
-          csc_score = 0;
-        }
-        score_row[j] = score;
-        csc_row[j] = csc_score;
-        trace[++pos] = score > 0 ? move : STOP;
-      }
-    }
-    i = m - 1;
-    j = n - 1;
-    pos = i * n + j;
-    backtrack = true;
-    matches = [];
-    while (backtrack && i >= 0 && j >= 0) {
-      switch (trace[pos]) {
-        case UP:
-          i--;
-          pos -= n;
-          break;
-        case LEFT:
-          j--;
-          pos--;
-          break;
-        case DIAGONAL:
-          matches.push(i + offset);
-          j--;
-          i--;
-          pos -= n + 1;
-          break;
-        default:
-          backtrack = false;
-      }
-    }
-    matches.reverse();
-    return matches;
-  };
-
-}).call(this);
-
-},{"./scorer":6,"path":7}],6:[function(require,module,exports){
-(function() {
-  var AcronymResult, PathSeparator, Query, basenameScore, coreChars, countDir, doScore, emptyAcronymResult, file_coeff, isMatch, isSeparator, isWordEnd, isWordStart, miss_coeff, opt_char_re, pos_bonus, scoreAcronyms, scoreCharacter, scoreConsecutives, scoreExact, scoreExactMatch, scorePattern, scorePosition, scoreSize, tau_depth, tau_size, truncatedUpperCase, wm;
-
-  PathSeparator = require('path').sep;
-
-  wm = 150;
-
-  pos_bonus = 20;
-
-  tau_depth = 13;
-
-  tau_size = 85;
-
-  file_coeff = 1.2;
-
-  miss_coeff = 0.75;
-
-  opt_char_re = /[ _\-:\/\\]/g;
-
-  exports.coreChars = coreChars = function(query) {
-    return query.replace(opt_char_re, '');
-  };
-
-  exports.score = function(string, query, prepQuery, allowErrors) {
-    var score, string_lw;
-    if (prepQuery == null) {
-      prepQuery = new Query(query);
-    }
-    if (allowErrors == null) {
-      allowErrors = false;
-    }
-    if (!(allowErrors || isMatch(string, prepQuery.core_lw, prepQuery.core_up))) {
-      return 0;
-    }
-    string_lw = string.toLowerCase();
-    score = doScore(string, string_lw, prepQuery);
-    return Math.ceil(basenameScore(string, string_lw, prepQuery, score));
-  };
-
-  Query = (function() {
-    function Query(query) {
-      if (!(query != null ? query.length : void 0)) {
-        return null;
-      }
-      this.query = query;
-      this.query_lw = query.toLowerCase();
-      this.core = coreChars(query);
-      this.core_lw = this.core.toLowerCase();
-      this.core_up = truncatedUpperCase(this.core);
-      this.depth = countDir(query, query.length);
-    }
-
-    return Query;
-
-  })();
-
-  exports.prepQuery = function(query) {
-    return new Query(query);
-  };
-
-  exports.isMatch = isMatch = function(subject, query_lw, query_up) {
-    var i, j, m, n, qj_lw, qj_up, si;
-    m = subject.length;
-    n = query_lw.length;
-    if (!m || n > m) {
-      return false;
-    }
-    i = -1;
-    j = -1;
-    while (++j < n) {
-      qj_lw = query_lw[j];
-      qj_up = query_up[j];
-      while (++i < m) {
-        si = subject[i];
-        if (si === qj_lw || si === qj_up) {
-          break;
-        }
-      }
-      if (i === m) {
-        return false;
-      }
-    }
-    return true;
-  };
-
-  doScore = function(subject, subject_lw, prepQuery) {
-    var acro, acro_score, align, csc_diag, csc_row, csc_score, i, j, m, miss_budget, miss_left, mm, n, pos, query, query_lw, record_miss, score, score_diag, score_row, score_up, si_lw, start, sz;
-    query = prepQuery.query;
-    query_lw = prepQuery.query_lw;
-    m = subject.length;
-    n = query.length;
-    acro = scoreAcronyms(subject, subject_lw, query, query_lw);
-    acro_score = acro.score;
-    if (acro.count === n) {
-      return scoreExact(n, m, acro_score, acro.pos);
-    }
-    pos = subject_lw.indexOf(query_lw);
-    if (pos > -1) {
-      return scoreExactMatch(subject, subject_lw, query, query_lw, pos, n, m);
-    }
-    score_row = new Array(n);
-    csc_row = new Array(n);
-    sz = scoreSize(n, m);
-    miss_budget = Math.ceil(miss_coeff * n) + 5;
-    miss_left = miss_budget;
-    j = -1;
-    while (++j < n) {
-      score_row[j] = 0;
-      csc_row[j] = 0;
-    }
-    i = subject_lw.indexOf(query_lw[0]);
-    if (i > -1) {
-      i--;
-    }
-    mm = subject_lw.lastIndexOf(query_lw[n - 1], m);
-    if (mm > i) {
-      m = mm + 1;
-    }
-    while (++i < m) {
-      score = 0;
-      score_diag = 0;
-      csc_diag = 0;
-      si_lw = subject_lw[i];
-      record_miss = true;
-      j = -1;
-      while (++j < n) {
-        score_up = score_row[j];
-        if (score_up > score) {
-          score = score_up;
-        }
-        csc_score = 0;
-        if (query_lw[j] === si_lw) {
-          start = isWordStart(i, subject, subject_lw);
-          csc_score = csc_diag > 0 ? csc_diag : scoreConsecutives(subject, subject_lw, query, query_lw, i, j, start);
-          align = score_diag + scoreCharacter(i, j, start, acro_score, csc_score);
-          if (align > score) {
-            score = align;
-            miss_left = miss_budget;
-          } else {
-            if (record_miss && --miss_left <= 0) {
-              return score_row[n - 1] * sz;
-            }
-            record_miss = false;
-          }
-        }
-        score_diag = score_up;
-        csc_diag = csc_row[j];
-        csc_row[j] = csc_score;
-        score_row[j] = score;
-      }
-    }
-    return score * sz;
-  };
-
-  exports.isWordStart = isWordStart = function(pos, subject, subject_lw) {
-    var curr_s, prev_s;
-    if (pos === 0) {
-      return true;
-    }
-    curr_s = subject[pos];
-    prev_s = subject[pos - 1];
-    return isSeparator(curr_s) || isSeparator(prev_s) || (curr_s !== subject_lw[pos] && prev_s === subject_lw[pos - 1]);
-  };
-
-  exports.isWordEnd = isWordEnd = function(pos, subject, subject_lw, len) {
-    var curr_s, next_s;
-    if (pos === len - 1) {
-      return true;
-    }
-    curr_s = subject[pos];
-    next_s = subject[pos + 1];
-    return isSeparator(curr_s) || isSeparator(next_s) || (curr_s === subject_lw[pos] && next_s !== subject_lw[pos + 1]);
-  };
-
-  isSeparator = function(c) {
-    return c === ' ' || c === '.' || c === '-' || c === '_' || c === '/' || c === '\\';
-  };
-
-  scorePosition = function(pos) {
-    var sc;
-    if (pos < pos_bonus) {
-      sc = pos_bonus - pos;
-      return 100 + sc * sc;
-    } else {
-      return Math.max(100 + pos_bonus - pos, 0);
-    }
-  };
-
-  scoreSize = function(n, m) {
-    return tau_size / (tau_size + Math.abs(m - n));
-  };
-
-  scoreExact = function(n, m, quality, pos) {
-    return 2 * n * (wm * quality + scorePosition(pos)) * scoreSize(n, m);
-  };
-
-  exports.scorePattern = scorePattern = function(count, len, sameCase, start, end) {
-    var bonus, sz;
-    sz = count;
-    bonus = 6;
-    if (sameCase === count) {
-      bonus += 2;
-    }
-    if (start) {
-      bonus += 3;
-    }
-    if (end) {
-      bonus += 1;
-    }
-    if (count === len) {
-      if (start) {
-        if (sameCase === len) {
-          sz += 2;
-        } else {
-          sz += 1;
-        }
-      }
-      if (end) {
-        bonus += 1;
-      }
-    }
-    return sameCase + sz * (sz + bonus);
-  };
-
-  exports.scoreCharacter = scoreCharacter = function(i, j, start, acro_score, csc_score) {
-    var posBonus;
-    posBonus = scorePosition(i);
-    if (start) {
-      return posBonus + wm * ((acro_score > csc_score ? acro_score : csc_score) + 10);
-    }
-    return posBonus + wm * csc_score;
-  };
-
-  exports.scoreConsecutives = scoreConsecutives = function(subject, subject_lw, query, query_lw, i, j, start) {
-    var k, m, mi, n, nj, sameCase, startPos, sz;
-    m = subject.length;
-    n = query.length;
-    mi = m - i;
-    nj = n - j;
-    k = mi < nj ? mi : nj;
-    startPos = i;
-    sameCase = 0;
-    sz = 0;
-    if (query[j] === subject[i]) {
-      sameCase++;
-    }
-    while (++sz < k && query_lw[++j] === subject_lw[++i]) {
-      if (query[j] === subject[i]) {
-        sameCase++;
-      }
-    }
-    if (sz === 1) {
-      return 1 + 2 * sameCase;
-    }
-    return scorePattern(sz, n, sameCase, start, isWordEnd(i, subject, subject_lw, m));
-  };
-
-  exports.scoreExactMatch = scoreExactMatch = function(subject, subject_lw, query, query_lw, pos, n, m) {
-    var end, i, pos2, sameCase, start;
-    start = isWordStart(pos, subject, subject_lw);
-    if (!start) {
-      pos2 = subject_lw.indexOf(query_lw, pos + 1);
-      if (pos2 > -1) {
-        start = isWordStart(pos2, subject, subject_lw);
-        if (start) {
-          pos = pos2;
-        }
-      }
-    }
-    i = -1;
-    sameCase = 0;
-    while (++i < n) {
-      if (query[pos + i] === subject[i]) {
-        sameCase++;
-      }
-    }
-    end = isWordEnd(pos + n - 1, subject, subject_lw, m);
-    return scoreExact(n, m, scorePattern(n, n, sameCase, start, end), pos);
-  };
-
-  AcronymResult = (function() {
-    function AcronymResult(score, pos, count) {
-      this.score = score;
-      this.pos = pos;
-      this.count = count;
-    }
-
-    return AcronymResult;
-
-  })();
-
-  emptyAcronymResult = new AcronymResult(0, 0.1, 0);
-
-  exports.scoreAcronyms = scoreAcronyms = function(subject, subject_lw, query, query_lw) {
-    var count, i, j, m, n, pos, qj_lw, sameCase, score;
-    m = subject.length;
-    n = query.length;
-    if (!(m > 1 && n > 1)) {
-      return emptyAcronymResult;
-    }
-    count = 0;
-    pos = 0;
-    sameCase = 0;
-    i = -1;
-    j = -1;
-    while (++j < n) {
-      qj_lw = query_lw[j];
-      while (++i < m) {
-        if (qj_lw === subject_lw[i] && isWordStart(i, subject, subject_lw)) {
-          if (query[j] === subject[i]) {
-            sameCase++;
-          }
-          pos += i;
-          count++;
-          break;
-        }
-      }
-      if (i === m) {
-        break;
-      }
-    }
-    if (count < 2) {
-      return emptyAcronymResult;
-    }
-    score = scorePattern(count, n, sameCase, true, false);
-    return new AcronymResult(score, pos / count, count);
-  };
-
-  basenameScore = function(subject, subject_lw, prepQuery, fullPathScore) {
-    var alpha, basePathScore, basePos, depth, end;
-    if (fullPathScore === 0) {
-      return 0;
-    }
-    end = subject.length - 1;
-    while (subject[end] === PathSeparator) {
-      end--;
-    }
-    basePos = subject.lastIndexOf(PathSeparator, end);
-    if (basePos === -1) {
-      return fullPathScore;
-    }
-    depth = prepQuery.depth;
-    while (depth-- > 0) {
-      basePos = subject.lastIndexOf(PathSeparator, basePos - 1);
-      if (basePos === -1) {
-        return fullPathScore;
-      }
-    }
-    basePos++;
-    end++;
-    basePathScore = doScore(subject.slice(basePos, end), subject_lw.slice(basePos, end), prepQuery);
-    alpha = 0.5 * tau_depth / (tau_depth + countDir(subject, end + 1));
-    return alpha * basePathScore + (1 - alpha) * fullPathScore * scoreSize(0, file_coeff * (end - basePos));
-  };
-
-  exports.countDir = countDir = function(path, end) {
-    var count, i;
-    if (end < 1) {
-      return 0;
-    }
-    count = 0;
-    i = -1;
-    while (++i < end && path[i] === PathSeparator) {
-      continue;
-    }
-    while (++i < end) {
-      if (path[i] === PathSeparator) {
-        count++;
-        while (++i < end && path[i] === PathSeparator) {
-          continue;
-        }
-      }
-    }
-    return count;
-  };
-
-  truncatedUpperCase = function(str) {
-    var char, upper, _i, _len;
-    upper = "";
-    for (_i = 0, _len = str.length; _i < _len; _i++) {
-      char = str[_i];
-      upper += char.toUpperCase()[0];
-    }
-    return upper;
-  };
-
-}).call(this);
-
-},{"path":7}],7:[function(require,module,exports){
-(function (process){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-// resolves . and .. elements in a path array with directory names there
-// must be no slashes, empty elements, or device names (c:\) in the array
-// (so also no leading and trailing slashes - it does not distinguish
-// relative and absolute paths)
-function normalizeArray(parts, allowAboveRoot) {
-  // if the path tries to go above the root, `up` ends up > 0
-  var up = 0;
-  for (var i = parts.length - 1; i >= 0; i--) {
-    var last = parts[i];
-    if (last === '.') {
-      parts.splice(i, 1);
-    } else if (last === '..') {
-      parts.splice(i, 1);
-      up++;
-    } else if (up) {
-      parts.splice(i, 1);
-      up--;
-    }
-  }
-
-  // if the path is allowed to go above the root, restore leading ..s
-  if (allowAboveRoot) {
-    for (; up--; up) {
-      parts.unshift('..');
-    }
-  }
-
-  return parts;
-}
-
-// Split a filename into [root, dir, basename, ext], unix version
-// 'root' is just a slash, or nothing.
-var splitPathRe =
-    /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
-var splitPath = function(filename) {
-  return splitPathRe.exec(filename).slice(1);
-};
-
-// path.resolve([from ...], to)
-// posix version
-exports.resolve = function() {
-  var resolvedPath = '',
-      resolvedAbsolute = false;
-
-  for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) {
-    var path = (i >= 0) ? arguments[i] : process.cwd();
-
-    // Skip empty and invalid entries
-    if (typeof path !== 'string') {
-      throw new TypeError('Arguments to path.resolve must be strings');
-    } else if (!path) {
-      continue;
-    }
-
-    resolvedPath = path + '/' + resolvedPath;
-    resolvedAbsolute = path.charAt(0) === '/';
-  }
-
-  // At this point the path should be resolved to a full absolute path, but
-  // handle relative paths to be safe (might happen when process.cwd() fails)
-
-  // Normalize the path
-  resolvedPath = normalizeArray(filter(resolvedPath.split('/'), function(p) {
-    return !!p;
-  }), !resolvedAbsolute).join('/');
-
-  return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.';
-};
-
-// path.normalize(path)
-// posix version
-exports.normalize = function(path) {
-  var isAbsolute = exports.isAbsolute(path),
-      trailingSlash = substr(path, -1) === '/';
-
-  // Normalize the path
-  path = normalizeArray(filter(path.split('/'), function(p) {
-    return !!p;
-  }), !isAbsolute).join('/');
-
-  if (!path && !isAbsolute) {
-    path = '.';
-  }
-  if (path && trailingSlash) {
-    path += '/';
-  }
-
-  return (isAbsolute ? '/' : '') + path;
-};
-
-// posix version
-exports.isAbsolute = function(path) {
-  return path.charAt(0) === '/';
-};
-
-// posix version
-exports.join = function() {
-  var paths = Array.prototype.slice.call(arguments, 0);
-  return exports.normalize(filter(paths, function(p, index) {
-    if (typeof p !== 'string') {
-      throw new TypeError('Arguments to path.join must be strings');
-    }
-    return p;
-  }).join('/'));
-};
-
-
-// path.relative(from, to)
-// posix version
-exports.relative = function(from, to) {
-  from = exports.resolve(from).substr(1);
-  to = exports.resolve(to).substr(1);
-
-  function trim(arr) {
-    var start = 0;
-    for (; start < arr.length; start++) {
-      if (arr[start] !== '') break;
-    }
-
-    var end = arr.length - 1;
-    for (; end >= 0; end--) {
-      if (arr[end] !== '') break;
-    }
-
-    if (start > end) return [];
-    return arr.slice(start, end - start + 1);
-  }
-
-  var fromParts = trim(from.split('/'));
-  var toParts = trim(to.split('/'));
-
-  var length = Math.min(fromParts.length, toParts.length);
-  var samePartsLength = length;
-  for (var i = 0; i < length; i++) {
-    if (fromParts[i] !== toParts[i]) {
-      samePartsLength = i;
-      break;
-    }
-  }
-
-  var outputParts = [];
-  for (var i = samePartsLength; i < fromParts.length; i++) {
-    outputParts.push('..');
-  }
-
-  outputParts = outputParts.concat(toParts.slice(samePartsLength));
-
-  return outputParts.join('/');
-};
-
-exports.sep = '/';
-exports.delimiter = ':';
-
-exports.dirname = function(path) {
-  var result = splitPath(path),
-      root = result[0],
-      dir = result[1];
-
-  if (!root && !dir) {
-    // No dirname whatsoever
-    return '.';
-  }
-
-  if (dir) {
-    // It has a dirname, strip trailing slash
-    dir = dir.substr(0, dir.length - 1);
-  }
-
-  return root + dir;
-};
-
-
-exports.basename = function(path, ext) {
-  var f = splitPath(path)[2];
-  // TODO: make this comparison case-insensitive on windows?
-  if (ext && f.substr(-1 * ext.length) === ext) {
-    f = f.substr(0, f.length - ext.length);
-  }
-  return f;
-};
-
-
-exports.extname = function(path) {
-  return splitPath(path)[3];
-};
-
-function filter (xs, f) {
-    if (xs.filter) return xs.filter(f);
-    var res = [];
-    for (var i = 0; i < xs.length; i++) {
-        if (f(xs[i], i, xs)) res.push(xs[i]);
-    }
-    return res;
-}
-
-// String.prototype.substr - negative index don't work in IE8
-var substr = 'ab'.substr(-1) === 'b'
-    ? function (str, start, len) { return str.substr(start, len) }
-    : function (str, start, len) {
-        if (start < 0) start = str.length + start;
-        return str.substr(start, len);
-    }
-;
-
-}).call(this,require('_process'))
-},{"_process":8}],8:[function(require,module,exports){
-// shim for using process in browser
-
-var process = module.exports = {};
-var queue = [];
-var draining = false;
-var currentQueue;
-var queueIndex = -1;
-
-function cleanUpNextTick() {
-    draining = false;
-    if (currentQueue.length) {
-        queue = currentQueue.concat(queue);
-    } else {
-        queueIndex = -1;
-    }
-    if (queue.length) {
-        drainQueue();
-    }
-}
-
-function drainQueue() {
-    if (draining) {
-        return;
-    }
-    var timeout = setTimeout(cleanUpNextTick);
-    draining = true;
-
-    var len = queue.length;
-    while(len) {
-        currentQueue = queue;
-        queue = [];
-        while (++queueIndex < len) {
-            if (currentQueue) {
-                currentQueue[queueIndex].run();
-            }
-        }
-        queueIndex = -1;
-        len = queue.length;
-    }
-    currentQueue = null;
-    draining = false;
-    clearTimeout(timeout);
-}
-
-process.nextTick = function (fun) {
-    var args = new Array(arguments.length - 1);
-    if (arguments.length > 1) {
-        for (var i = 1; i < arguments.length; i++) {
-            args[i - 1] = arguments[i];
-        }
-    }
-    queue.push(new Item(fun, args));
-    if (queue.length === 1 && !draining) {
-        setTimeout(drainQueue, 0);
-    }
-};
-
-// v8 likes predictible objects
-function Item(fun, array) {
-    this.fun = fun;
-    this.array = array;
-}
-Item.prototype.run = function () {
-    this.fun.apply(null, this.array);
-};
-process.title = 'browser';
-process.browser = true;
-process.env = {};
-process.argv = [];
-process.version = ''; // empty string to avoid regexp issues
-process.versions = {};
-
-function noop() {}
-
-process.on = noop;
-process.addListener = noop;
-process.once = noop;
-process.off = noop;
-process.removeListener = noop;
-process.removeAllListeners = noop;
-process.emit = noop;
-
-process.binding = function (name) {
-    throw new Error('process.binding is not supported');
-};
-
-process.cwd = function () { return '/' };
-process.chdir = function (dir) {
-    throw new Error('process.chdir is not supported');
-};
-process.umask = function() { return 0; };
-
-},{}]},{},[1]);
diff --git a/yarn.lock b/yarn.lock
index 91ffbe5d4b0..818878fe36c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -248,6 +248,10 @@ autoprefixer@^6.3.1:
     postcss "^5.2.16"
     postcss-value-parser "^3.2.3"
 
+autosize@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/autosize/-/autosize-4.0.0.tgz#7a0599b1ba84d73bd7589b0d9da3870152c69237"
+
 aws-sign2@~0.6.0:
   version "0.6.0"
   resolved "https://registry.yarnpkg.com/aws-sign2/-/aws-sign2-0.6.0.tgz#14342dd38dbcc94d0e5b87d763cd63612c0e794f"
@@ -2671,6 +2675,10 @@ function-bind@^1.1.1, function-bind@~1.1.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/function-bind/-/function-bind-1.1.1.tgz#a56899d3ea3c9bab874bb9773b7c5ede92f4895d"
 
+fuzzaldrin-plus@^0.5.0:
+  version "0.5.0"
+  resolved "https://registry.yarnpkg.com/fuzzaldrin-plus/-/fuzzaldrin-plus-0.5.0.tgz#ef5f26f0c2fc7e9e9a16ea149a802d6cb4804b1e"
+
 gauge@~2.7.3:
   version "2.7.4"
   resolved "https://registry.yarnpkg.com/gauge/-/gauge-2.7.4.tgz#2c03405c7538c39d7eb37b317022e325fb018bf7"