Merge branch 'master' into 'qa-define-selectors'qa-define-selectors

# Conflicts:
#   qa/qa/page/group/show.rb

86 files changed, 1351 insertions, 661 deletions

diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index c1d78ef2d48..be18520b876 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -321,6 +321,7 @@ setup-test-env:
     expire_in: 7d
     paths:
       - tmp/tests
+      - config/secrets.yml
 
 rspec-pg 0 27: *rspec-metadata-pg
 rspec-pg 1 27: *rspec-metadata-pg
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 248c85304a9..5fc97c06f7c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,22 @@
 documentation](doc/development/changelog.md) for instructions on adding your own
 entry.
 
+## 10.4.2 (2018-01-30)
+
+### Fixed (6 changes)
+
+- Fix copy/paste on iOS devices due to a bug in webkit. !15804
+- Fix missing "allow users to request access" option in public project permissions. !16485
+- Fix encoding issue when counting commit count. !16637
+- Fixes destination already exists, and some particular service errors on Import/Export error. !16714
+- Fix cache clear bug withg using : on Windows. !16740
+- Use has_table_privilege for TRIGGER on PostgreSQL.
+
+### Changed (1 change)
+
+- Vendor Auto DevOps template with DAST security checks enabled. !16691
+
+
 ## 10.4.1 (2018-01-24)
 
 ### Fixed (4 changes)
diff --git a/Gemfile b/Gemfile
index ee576c53fe9..05f72b6482f 100644
--- a/Gemfile
+++ b/Gemfile
@@ -325,7 +325,7 @@ group :development, :test do
   gem 'spinach-rerun-reporter', '~> 0.0.2'
   gem 'rspec_profiling', '~> 0.0.5'
   gem 'rspec-set', '~> 0.1.3'
-  gem 'rspec-parameterized'
+  gem 'rspec-parameterized', require: false
 
   # Prevent occasions where minitest is not bundled in packaged versions of ruby (see #3826)
   gem 'minitest', '~> 5.7.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index 5532888d179..1a3c8f42469 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -304,7 +304,7 @@ GEM
       mime-types (>= 1.16)
       posix-spawn (~> 0.3)
     gitlab-markup (1.6.3)
-    gitlab-styles (2.3.1)
+    gitlab-styles (2.3.2)
       rubocop (~> 0.51)
       rubocop-gitlab-security (~> 0.1.0)
       rubocop-rspec (~> 1.19)
diff --git a/app/assets/javascripts/blob_edit/edit_blob.js b/app/assets/javascripts/blob_edit/edit_blob.js
index b37988a674d..a25f7fb3dcd 100644
--- a/app/assets/javascripts/blob_edit/edit_blob.js
+++ b/app/assets/javascripts/blob_edit/edit_blob.js
@@ -1,5 +1,8 @@
 /* global ace */
 
+import axios from '~/lib/utils/axios_utils';
+import createFlash from '~/flash';
+import { __ } from '~/locale';
 import TemplateSelectorMediator from '../blob/file_template_mediator';
 
 export default class EditBlob {
@@ -56,12 +59,14 @@ export default class EditBlob {
 
     if (paneId === '#preview') {
       this.$toggleButton.hide();
-      return $.post(currentLink.data('preview-url'), {
+      axios.post(currentLink.data('preview-url'), {
         content: this.editor.getValue(),
-      }, (response) => {
-        currentPane.empty().append(response);
-        return currentPane.renderGFM();
-      });
+      })
+      .then(({ data }) => {
+        currentPane.empty().append(data);
+        currentPane.renderGFM();
+      })
+      .catch(() => createFlash(__('An error occurred previewing the blob')));
     }
 
     this.$toggleButton.show();
diff --git a/app/assets/javascripts/create_item_dropdown.js b/app/assets/javascripts/create_item_dropdown.js
index 488db023ee7..42e9e568170 100644
--- a/app/assets/javascripts/create_item_dropdown.js
+++ b/app/assets/javascripts/create_item_dropdown.js
@@ -12,6 +12,7 @@ export default class CreateItemDropdown {
     this.fieldName = options.fieldName;
     this.onSelect = options.onSelect || (() => {});
     this.getDataOption = options.getData;
+    this.createNewItemFromValueOption = options.createNewItemFromValue;
     this.$dropdown = options.$dropdown;
     this.$dropdownContainer = this.$dropdown.parent();
     this.$dropdownFooter = this.$dropdownContainer.find('.dropdown-footer');
@@ -30,15 +31,15 @@ export default class CreateItemDropdown {
       filterable: true,
       remote: false,
       search: {
-        fields: ['title'],
+        fields: ['text'],
       },
       selectable: true,
       toggleLabel(selected) {
-        return (selected && 'id' in selected) ? selected.title : this.defaultToggleLabel;
+        return (selected && 'id' in selected) ? _.escape(selected.title) : this.defaultToggleLabel;
       },
       fieldName: this.fieldName,
       text(item) {
-        return _.escape(item.title);
+        return _.escape(item.text);
       },
       id(item) {
         return _.escape(item.id);
@@ -51,6 +52,11 @@ export default class CreateItemDropdown {
     });
   }
 
+  clearDropdown() {
+    this.$dropdownContainer.find('.dropdown-content').html('');
+    this.$dropdownContainer.find('.dropdown-input-field').val('');
+  }
+
   bindEvents() {
     this.$createButton.on('click', this.onClickCreateWildcard.bind(this));
   }
@@ -58,9 +64,13 @@ export default class CreateItemDropdown {
   onClickCreateWildcard(e) {
     e.preventDefault();
 
+    this.refreshData();
+    this.$dropdown.data('glDropdown').selectRowAtIndex();
+  }
+
+  refreshData() {
     // Refresh the dropdown's data, which ends up calling `getData`
     this.$dropdown.data('glDropdown').remote.execute();
-    this.$dropdown.data('glDropdown').selectRowAtIndex();
   }
 
   getData(term, callback) {
@@ -79,20 +89,28 @@ export default class CreateItemDropdown {
     });
   }
 
-  toggleCreateNewButton(item) {
-    if (item) {
-      this.selectedItem = {
-        title: item,
-        id: item,
-        text: item,
-      };
+  createNewItemFromValue(newValue) {
+    if (this.createNewItemFromValueOption) {
+      return this.createNewItemFromValueOption(newValue);
+    }
+
+    return {
+      title: newValue,
+      id: newValue,
+      text: newValue,
+    };
+  }
+
+  toggleCreateNewButton(newValue) {
+    if (newValue) {
+      this.selectedItem = this.createNewItemFromValue(newValue);
 
       this.$dropdownContainer
         .find('.js-dropdown-create-new-item code')
-        .text(item);
+        .text(newValue);
     }
 
-    this.toggleFooter(!item);
+    this.toggleFooter(!newValue);
   }
 
   toggleFooter(toggleState) {
diff --git a/app/assets/javascripts/gl_dropdown.js b/app/assets/javascripts/gl_dropdown.js
index 64f258aed64..15df7a7f989 100644
--- a/app/assets/javascripts/gl_dropdown.js
+++ b/app/assets/javascripts/gl_dropdown.js
@@ -2,6 +2,7 @@
 /* global fuzzaldrinPlus */
 import _ from 'underscore';
 import fuzzaldrinPlus from 'fuzzaldrin-plus';
+import axios from './lib/utils/axios_utils';
 import { visitUrl } from './lib/utils/url_utility';
 import { isObject } from './lib/utils/type_utility';
 
@@ -212,25 +213,17 @@ GitLabDropdownRemote = (function() {
   };
 
   GitLabDropdownRemote.prototype.fetchData = function() {
-    return $.ajax({
-      url: this.dataEndpoint,
-      dataType: this.options.dataType,
-      beforeSend: (function(_this) {
-        return function() {
-          if (_this.options.beforeSend) {
-            return _this.options.beforeSend();
-          }
-        };
-      })(this),
-      success: (function(_this) {
-        return function(data) {
-          if (_this.options.success) {
-            return _this.options.success(data);
-          }
-        };
-      })(this)
-    });
-  // Fetch the data through ajax if the data is a string
+    if (this.options.beforeSend) {
+      this.options.beforeSend();
+    }
+
+    // Fetch the data through ajax if the data is a string
+    return axios.get(this.dataEndpoint)
+      .then(({ data }) => {
+        if (this.options.success) {
+          return this.options.success(data);
+        }
+      });
   };
 
   return GitLabDropdownRemote;
diff --git a/app/assets/javascripts/graphs/graphs_show.js b/app/assets/javascripts/graphs/graphs_show.js
index 36bad6db3e1..b670e907a5c 100644
--- a/app/assets/javascripts/graphs/graphs_show.js
+++ b/app/assets/javascripts/graphs/graphs_show.js
@@ -1,11 +1,13 @@
+import flash from '../flash';
+import { __ } from '../locale';
+import axios from '../lib/utils/axios_utils';
 import ContributorsStatGraph from './stat_graph_contributors';
 
 document.addEventListener('DOMContentLoaded', () => {
-  $.ajax({
-    type: 'GET',
-    url: document.querySelector('.js-graphs-show').dataset.projectGraphPath,
-    dataType: 'json',
-    success(data) {
+  const url = document.querySelector('.js-graphs-show').dataset.projectGraphPath;
+
+  axios.get(url)
+    .then(({ data }) => {
       const graph = new ContributorsStatGraph();
       graph.init(data);
 
@@ -16,6 +18,6 @@ document.addEventListener('DOMContentLoaded', () => {
 
       $('.stat-graph').fadeIn();
       $('.loading-graph').hide();
-    },
-  });
+    })
+    .catch(() => flash(__('Error fetching contributors data.')));
 });
diff --git a/app/assets/javascripts/group_label_subscription.js b/app/assets/javascripts/group_label_subscription.js
index befaebb635e..df9429b1e02 100644
--- a/app/assets/javascripts/group_label_subscription.js
+++ b/app/assets/javascripts/group_label_subscription.js
@@ -1,3 +1,7 @@
+import axios from './lib/utils/axios_utils';
+import flash from './flash';
+import { __ } from './locale';
+
 export default class GroupLabelSubscription {
   constructor(container) {
     const $container = $(container);
@@ -13,14 +17,12 @@ export default class GroupLabelSubscription {
     event.preventDefault();
 
     const url = this.$unsubscribeButtons.attr('data-url');
-
-    $.ajax({
-      type: 'POST',
-      url,
-    }).done(() => {
-      this.toggleSubscriptionButtons();
-      this.$unsubscribeButtons.removeAttr('data-url');
-    });
+    axios.post(url)
+      .then(() => {
+        this.toggleSubscriptionButtons();
+        this.$unsubscribeButtons.removeAttr('data-url');
+      })
+      .catch(() => flash(__('There was an error when unsubscribing from this label.')));
   }
 
   subscribe(event) {
@@ -31,12 +33,9 @@ export default class GroupLabelSubscription {
 
     this.$unsubscribeButtons.attr('data-url', url);
 
-    $.ajax({
-      type: 'POST',
-      url,
-    }).done(() => {
-      this.toggleSubscriptionButtons();
-    });
+    axios.post(url)
+      .then(() => this.toggleSubscriptionButtons())
+      .catch(() => flash(__('There was an error when subscribing to this label.')));
   }
 
   toggleSubscriptionButtons() {
diff --git a/app/assets/javascripts/integrations/integration_settings_form.js b/app/assets/javascripts/integrations/integration_settings_form.js
index 32415a8791f..3f27cfc2f6d 100644
--- a/app/assets/javascripts/integrations/integration_settings_form.js
+++ b/app/assets/javascripts/integrations/integration_settings_form.js
@@ -1,4 +1,5 @@
-import Flash from '../flash';
+import axios from '../lib/utils/axios_utils';
+import flash from '../flash';
 
 export default class IntegrationSettingsForm {
   constructor(formSelector) {
@@ -95,29 +96,26 @@ export default class IntegrationSettingsForm {
    */
   testSettings(formData) {
     this.toggleSubmitBtnState(true);
-    $.ajax({
-      type: 'PUT',
-      url: this.testEndPoint,
-      data: formData,
-    })
-    .done((res) => {
-      if (res.error) {
-        new Flash(`${res.message} ${res.service_response}`, 'alert', document, {
-          title: 'Save anyway',
-          clickHandler: (e) => {
-            e.preventDefault();
-            this.$form.submit();
-          },
-        });
-      } else {
-        this.$form.submit();
-      }
-    })
-    .fail(() => {
-      new Flash('Something went wrong on our end.');
-    })
-    .always(() => {
-      this.toggleSubmitBtnState(false);
-    });
+
+    return axios.put(this.testEndPoint, formData)
+      .then(({ data }) => {
+        if (data.error) {
+          flash(`${data.message} ${data.service_response}`, 'alert', document, {
+            title: 'Save anyway',
+            clickHandler: (e) => {
+              e.preventDefault();
+              this.$form.submit();
+            },
+          });
+        } else {
+          this.$form.submit();
+        }
+
+        this.toggleSubmitBtnState(false);
+      })
+      .catch(() => {
+        flash('Something went wrong on our end.');
+        this.toggleSubmitBtnState(false);
+      });
   }
 }
diff --git a/app/assets/javascripts/issuable_bulk_update_actions.js b/app/assets/javascripts/issuable_bulk_update_actions.js
index b124fafec70..8c1b2e78ca4 100644
--- a/app/assets/javascripts/issuable_bulk_update_actions.js
+++ b/app/assets/javascripts/issuable_bulk_update_actions.js
@@ -1,5 +1,6 @@
 /* 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 */
 import _ from 'underscore';
+import axios from './lib/utils/axios_utils';
 import Flash from './flash';
 
 export default {
@@ -22,15 +23,9 @@ export default {
   },
 
   submit() {
-    const _this = this;
-    const xhr = $.ajax({
-      url: this.form.attr('action'),
-      method: this.form.attr('method'),
-      dataType: 'JSON',
-      data: this.getFormDataAsObject()
-    });
-    xhr.done(() => window.location.reload());
-    xhr.fail(() => this.onFormSubmitFailure());
+    axios[this.form.attr('method')](this.form.attr('action'), this.getFormDataAsObject())
+      .then(() => window.location.reload())
+      .catch(() => this.onFormSubmitFailure());
   },
 
   onFormSubmitFailure() {
diff --git a/app/assets/javascripts/issuable_index.js b/app/assets/javascripts/issuable_index.js
index c3e0acdff66..0683ca82a38 100644
--- a/app/assets/javascripts/issuable_index.js
+++ b/app/assets/javascripts/issuable_index.js
@@ -1,3 +1,6 @@
+import axios from './lib/utils/axios_utils';
+import flash from './flash';
+import { __ } from './locale';
 import IssuableBulkUpdateSidebar from './issuable_bulk_update_sidebar';
 import IssuableBulkUpdateActions from './issuable_bulk_update_actions';
 
@@ -20,23 +23,24 @@ export default class IssuableIndex {
   }
 
   static resetIncomingEmailToken() {
-    $('.incoming-email-token-reset').on('click', (e) => {
+    const $resetToken = $('.incoming-email-token-reset');
+
+    $resetToken.on('click', (e) => {
       e.preventDefault();
 
-      $.ajax({
-        type: 'PUT',
-        url: $('.incoming-email-token-reset').attr('href'),
-        dataType: 'json',
-        success(response) {
-          $('#issuable_email').val(response.new_address).focus();
-        },
-        beforeSend() {
-          $('.incoming-email-token-reset').text('resetting...');
-        },
-        complete() {
-          $('.incoming-email-token-reset').text('reset it');
-        },
-      });
+      $resetToken.text('resetting...');
+
+      axios.put($resetToken.attr('href'))
+        .then(({ data }) => {
+          $('#issuable_email').val(data.new_address).focus();
+
+          $resetToken.text('reset it');
+        })
+        .catch(() => {
+          flash(__('There was an error when reseting email token.'));
+
+          $resetToken.text('reset it');
+        });
     });
   }
 }
diff --git a/app/assets/javascripts/label_manager.js b/app/assets/javascripts/label_manager.js
index ac2f636df0f..61b40f79db1 100644
--- a/app/assets/javascripts/label_manager.js
+++ b/app/assets/javascripts/label_manager.js
@@ -1,7 +1,8 @@
 /* eslint-disable comma-dangle, class-methods-use-this, no-underscore-dangle, no-param-reassign, no-unused-vars, consistent-return, func-names, space-before-function-paren, max-len */
 import Sortable from 'vendor/Sortable';
 
-import Flash from './flash';
+import flash from './flash';
+import axios from './lib/utils/axios_utils';
 
 export default class LabelManager {
   constructor({ togglePriorityButton, prioritizedLabels, otherLabels } = {}) {
@@ -50,11 +51,12 @@ export default class LabelManager {
     if (persistState == null) {
       persistState = true;
     }
-    let xhr;
     const _this = this;
     const url = $label.find('.js-toggle-priority').data('url');
     let $target = this.prioritizedLabels;
     let $from = this.otherLabels;
+    const rollbackLabelPosition = this.rollbackLabelPosition.bind(this, $label, action);
+
     if (action === 'remove') {
       $target = this.otherLabels;
       $from = this.prioritizedLabels;
@@ -71,40 +73,34 @@ export default class LabelManager {
       return;
     }
     if (action === 'remove') {
-      xhr = $.ajax({
-        url,
-        type: 'DELETE'
-      });
+      axios.delete(url)
+        .catch(rollbackLabelPosition);
+
       // Restore empty message
       if (!$from.find('li').length) {
         $from.find('.empty-message').removeClass('hidden');
       }
     } else {
-      xhr = this.savePrioritySort($label, action);
+      this.savePrioritySort($label, action)
+        .catch(rollbackLabelPosition);
     }
-    return xhr.fail(this.rollbackLabelPosition.bind(this, $label, action));
   }
 
   onPrioritySortUpdate() {
-    const xhr = this.savePrioritySort();
-    return xhr.fail(function() {
-      return new Flash(this.errorMessage, 'alert');
-    });
+    this.savePrioritySort()
+      .catch(() => flash(this.errorMessage));
   }
 
   savePrioritySort() {
-    return $.post({
-      url: this.prioritizedLabels.data('url'),
-      data: {
-        label_ids: this.getSortedLabelsIds()
-      }
+    return axios.post(this.prioritizedLabels.data('url'), {
+      label_ids: this.getSortedLabelsIds(),
     });
   }
 
   rollbackLabelPosition($label, originalAction) {
     const action = originalAction === 'remove' ? 'add' : 'remove';
     this.toggleLabelPriority($label, action, false);
-    return new Flash(this.errorMessage, 'alert');
+    flash(this.errorMessage);
   }
 
   getSortedLabelsIds() {
diff --git a/app/assets/javascripts/monitoring/components/dashboard.vue b/app/assets/javascripts/monitoring/components/dashboard.vue
index 025e38ea99a..5afae93724b 100644
--- a/app/assets/javascripts/monitoring/components/dashboard.vue
+++ b/app/assets/javascripts/monitoring/components/dashboard.vue
@@ -76,7 +76,13 @@
             .then(data => this.store.storeDeploymentData(data))
             .catch(() => new Flash('Error getting deployment information.')),
         ])
-          .then(() => { this.showEmptyState = false; })
+          .then(() => {
+            if (this.store.groups.length < 1) {
+              this.state = 'noData';
+              return;
+            }
+            this.showEmptyState = false;
+          })
           .catch(() => { this.state = 'unableToConnect'; });
       },
 
diff --git a/app/assets/javascripts/monitoring/components/empty_state.vue b/app/assets/javascripts/monitoring/components/empty_state.vue
index 87d1975d5ad..56cd60c583b 100644
--- a/app/assets/javascripts/monitoring/components/empty_state.vue
+++ b/app/assets/javascripts/monitoring/components/empty_state.vue
@@ -34,16 +34,23 @@
             svgUrl: this.emptyGettingStartedSvgPath,
             title: 'Get started with performance monitoring',
             description: `Stay updated about the performance and health
-of your environment by configuring Prometheus to monitor your deployments.`,
+              of your environment by configuring Prometheus to monitor your deployments.`,
             buttonText: 'Configure Prometheus',
           },
           loading: {
             svgUrl: this.emptyLoadingSvgPath,
             title: 'Waiting for performance data',
             description: `Creating graphs uses the data from the Prometheus server.
-If this takes a long time, ensure that data is available.`,
+              If this takes a long time, ensure that data is available.`,
             buttonText: 'View documentation',
           },
+          noData: {
+            svgUrl: this.emptyUnableToConnectSvgPath,
+            title: 'No data found',
+            description: `You are connected to the Prometheus server, but there is currently
+              no data to display.`,
+            buttonText: 'Configure Prometheus',
+          },
           unableToConnect: {
             svgUrl: this.emptyUnableToConnectSvgPath,
             title: 'Unable to connect to Prometheus server',
diff --git a/app/assets/javascripts/single_file_diff.js b/app/assets/javascripts/single_file_diff.js
index 95e51bc4e7a..48dd91bdf06 100644
--- a/app/assets/javascripts/single_file_diff.js
+++ b/app/assets/javascripts/single_file_diff.js
@@ -1,5 +1,8 @@
 /* eslint-disable func-names, prefer-arrow-callback, space-before-function-paren, no-var, prefer-rest-params, wrap-iife, one-var, one-var-declaration-per-line, consistent-return, no-param-reassign, max-len */
 
+import { __ } from './locale';
+import axios from './lib/utils/axios_utils';
+import createFlash from './flash';
 import FilesCommentButton from './files_comment_button';
 import imageDiffHelper from './image_diff/helpers/index';
 import syntaxHighlight from './syntax_highlight';
@@ -60,30 +63,31 @@ export default class SingleFileDiff {
   getContentHTML(cb) {
     this.collapsedContent.hide();
     this.loadingContent.show();
-    $.get(this.diffForPath, (function(_this) {
-      return function(data) {
-        _this.loadingContent.hide();
+
+    axios.get(this.diffForPath)
+      .then(({ data }) => {
+        this.loadingContent.hide();
         if (data.html) {
-          _this.content = $(data.html);
-          syntaxHighlight(_this.content);
+          this.content = $(data.html);
+          syntaxHighlight(this.content);
         } else {
-          _this.hasError = true;
-          _this.content = $(ERROR_HTML);
+          this.hasError = true;
+          this.content = $(ERROR_HTML);
         }
-        _this.collapsedContent.after(_this.content);
+        this.collapsedContent.after(this.content);
 
         if (typeof gl.diffNotesCompileComponents !== 'undefined') {
           gl.diffNotesCompileComponents();
         }
 
-        const $file = $(_this.file);
+        const $file = $(this.file);
         FilesCommentButton.init($file);
 
         const canCreateNote = $file.closest('.files').is('[data-can-create-note]');
         imageDiffHelper.initImageDiff($file[0], canCreateNote);
 
         if (cb) cb();
-      };
-    })(this));
+      })
+      .catch(createFlash(__('An error occurred while retrieving diff')));
   }
 }
diff --git a/app/assets/javascripts/vue_merge_request_widget/components/states/mr_widget_merged.js b/app/assets/javascripts/vue_merge_request_widget/components/states/mr_widget_merged.js
deleted file mode 100644
index 7f8d78cab73..00000000000
--- a/app/assets/javascripts/vue_merge_request_widget/components/states/mr_widget_merged.js
+++ /dev/null
@@ -1,139 +0,0 @@
-import Flash from '../../../flash';
-import mrWidgetAuthorTime from '../../components/mr_widget_author_time';
-import tooltip from '../../../vue_shared/directives/tooltip';
-import loadingIcon from '../../../vue_shared/components/loading_icon.vue';
-import statusIcon from '../mr_widget_status_icon.vue';
-import eventHub from '../../event_hub';
-
-export default {
-  name: 'MRWidgetMerged',
-  props: {
-    mr: { type: Object, required: true },
-    service: { type: Object, required: true },
-  },
-  data() {
-    return {
-      isMakingRequest: false,
-    };
-  },
-  directives: {
-    tooltip,
-  },
-  components: {
-    'mr-widget-author-and-time': mrWidgetAuthorTime,
-    loadingIcon,
-    statusIcon,
-  },
-  computed: {
-    shouldShowRemoveSourceBranch() {
-      const { sourceBranchRemoved, isRemovingSourceBranch, canRemoveSourceBranch } = this.mr;
-
-      return !sourceBranchRemoved && canRemoveSourceBranch &&
-        !this.isMakingRequest && !isRemovingSourceBranch;
-    },
-    shouldShowSourceBranchRemoving() {
-      const { sourceBranchRemoved, isRemovingSourceBranch } = this.mr;
-      return !sourceBranchRemoved && (isRemovingSourceBranch || this.isMakingRequest);
-    },
-    shouldShowMergedButtons() {
-      const { canRevertInCurrentMR, canCherryPickInCurrentMR, revertInForkPath,
-        cherryPickInForkPath } = this.mr;
-
-      return canRevertInCurrentMR || canCherryPickInCurrentMR ||
-        revertInForkPath || cherryPickInForkPath;
-    },
-  },
-  methods: {
-    removeSourceBranch() {
-      this.isMakingRequest = true;
-      this.service.removeSourceBranch()
-        .then(res => res.data)
-        .then((data) => {
-          if (data.message === 'Branch was removed') {
-            eventHub.$emit('MRWidgetUpdateRequested', () => {
-              this.isMakingRequest = false;
-            });
-          }
-        })
-        .catch(() => {
-          this.isMakingRequest = false;
-          new Flash('Something went wrong. Please try again.'); // eslint-disable-line
-        });
-    },
-  },
-  template: `
-    <div class="mr-widget-body media">
-      <status-icon status="success" />
-      <div class="media-body">
-        <div class="space-children">
-          <mr-widget-author-and-time
-            actionText="Merged by"
-            :author="mr.metrics.mergedBy"
-            :date-title="mr.metrics.mergedAt"
-            :date-readable="mr.metrics.readableMergedAt" />
-          <a
-            v-if="mr.canRevertInCurrentMR"
-            v-tooltip
-            class="btn btn-close btn-xs"
-            href="#modal-revert-commit"
-            data-toggle="modal"
-            data-container="body"
-            title="Revert this merge request in a new merge request">
-            Revert
-          </a>
-          <a
-            v-else-if="mr.revertInForkPath"
-            v-tooltip
-            class="btn btn-close btn-xs"
-            data-method="post"
-            :href="mr.revertInForkPath"
-            title="Revert this merge request in a new merge request">
-            Revert
-          </a>
-          <a
-            v-if="mr.canCherryPickInCurrentMR"
-            v-tooltip
-            class="btn btn-default btn-xs"
-            href="#modal-cherry-pick-commit"
-            data-toggle="modal"
-            data-container="body"
-            title="Cherry-pick this merge request in a new merge request">
-            Cherry-pick
-          </a>
-          <a
-            v-else-if="mr.cherryPickInForkPath"
-            v-tooltip
-            class="btn btn-default btn-xs"
-            data-method="post"
-            :href="mr.cherryPickInForkPath"
-            title="Cherry-pick this merge request in a new merge request">
-            Cherry-pick
-          </a>
-        </div>
-        <section class="mr-info-list">
-          <p>
-            The changes were merged into
-            <span class="label-branch">
-              <a :href="mr.targetBranchPath">{{mr.targetBranch}}</a>
-            </span>
-          </p>
-          <p v-if="mr.sourceBranchRemoved">The source branch has been removed</p>
-          <p v-if="shouldShowRemoveSourceBranch" class="space-children">
-            <span>You can remove source branch now</span>
-            <button
-              @click="removeSourceBranch"
-              :disabled="isMakingRequest"
-              type="button"
-              class="btn btn-xs btn-default js-remove-branch-button">
-              Remove Source Branch
-            </button>
-          </p>
-          <p v-if="shouldShowSourceBranchRemoving">
-            <loading-icon inline />
-            <span>The source branch is being removed</span>
-          </p>
-        </section>
-      </div>
-    </div>
-  `,
-};
diff --git a/app/assets/javascripts/vue_merge_request_widget/components/states/mr_widget_merged.vue b/app/assets/javascripts/vue_merge_request_widget/components/states/mr_widget_merged.vue
new file mode 100644
index 00000000000..a92e0b3c124
--- /dev/null
+++ b/app/assets/javascripts/vue_merge_request_widget/components/states/mr_widget_merged.vue
@@ -0,0 +1,192 @@
+<script>
+  import Flash from '~/flash';
+  import tooltip from '~/vue_shared/directives/tooltip';
+  import loadingIcon from '~/vue_shared/components/loading_icon.vue';
+  import { s__, __ } from '~/locale';
+  import mrWidgetAuthorTime from '../../components/mr_widget_author_time';
+  import statusIcon from '../mr_widget_status_icon.vue';
+  import eventHub from '../../event_hub';
+
+  export default {
+    name: 'MRWidgetMerged',
+    directives: {
+      tooltip,
+    },
+    components: {
+      mrWidgetAuthorTime,
+      loadingIcon,
+      statusIcon,
+    },
+    props: {
+      mr: {
+        type: Object,
+        required: true,
+        default: () => ({}),
+      },
+      service: {
+        type: Object,
+        required: true,
+        default: () => ({}),
+      },
+    },
+    data() {
+      return {
+        isMakingRequest: false,
+      };
+    },
+    computed: {
+      shouldShowRemoveSourceBranch() {
+        const {
+          sourceBranchRemoved,
+          isRemovingSourceBranch,
+          canRemoveSourceBranch,
+        } = this.mr;
+
+        return !sourceBranchRemoved &&
+          canRemoveSourceBranch &&
+          !this.isMakingRequest &&
+          !isRemovingSourceBranch;
+      },
+      shouldShowSourceBranchRemoving() {
+        const {
+          sourceBranchRemoved,
+          isRemovingSourceBranch,
+        } = this.mr;
+        return !sourceBranchRemoved &&
+          (isRemovingSourceBranch || this.isMakingRequest);
+      },
+      shouldShowMergedButtons() {
+        const {
+          canRevertInCurrentMR,
+          canCherryPickInCurrentMR,
+          revertInForkPath,
+          cherryPickInForkPath,
+        } = this.mr;
+
+        return canRevertInCurrentMR ||
+          canCherryPickInCurrentMR ||
+          revertInForkPath ||
+          cherryPickInForkPath;
+      },
+      revertTitle() {
+        return s__('mrWidget|Revert this merge request in a new merge request');
+      },
+      cherryPickTitle() {
+        return s__('mrWidget|Cherry-pick this merge request in a new merge request');
+      },
+      revertLabel() {
+        return s__('mrWidget|Revert');
+      },
+      cherryPickLabel() {
+        return s__('mrWidget|Cherry-pick');
+      },
+    },
+    methods: {
+      removeSourceBranch() {
+        this.isMakingRequest = true;
+
+        this.service.removeSourceBranch()
+          .then(res => res.data)
+          .then((data) => {
+            if (data.message === 'Branch was removed') {
+              eventHub.$emit('MRWidgetUpdateRequested', () => {
+                this.isMakingRequest = false;
+              });
+            }
+          })
+          .catch(() => {
+            this.isMakingRequest = false;
+            Flash(__('Something went wrong. Please try again.'));
+          });
+      },
+    },
+  };
+</script>
+<template>
+  <div class="mr-widget-body media">
+    <status-icon status="success" />
+    <div class="media-body">
+      <div class="space-children">
+        <mr-widget-author-time
+          :action-text="s__('mrWidget|Merged by')"
+          :author="mr.metrics.mergedBy"
+          :date-title="mr.metrics.mergedAt"
+          :date-readable="mr.metrics.readableMergedAt"
+        />
+        <a
+          v-if="mr.canRevertInCurrentMR"
+          v-tooltip
+          class="btn btn-close btn-xs"
+          href="#modal-revert-commit"
+          data-toggle="modal"
+          data-container="body"
+          :title="revertTitle"
+        >
+          {{ revertLabel }}
+        </a>
+        <a
+          v-else-if="mr.revertInForkPath"
+          v-tooltip
+          class="btn btn-close btn-xs"
+          data-method="post"
+          :href="mr.revertInForkPath"
+          :title="revertTitle"
+        >
+          {{ revertLabel }}
+        </a>
+        <a
+          v-if="mr.canCherryPickInCurrentMR"
+          v-tooltip
+          class="btn btn-default btn-xs"
+          href="#modal-cherry-pick-commit"
+          data-toggle="modal"
+          data-container="body"
+          :title="cherryPickTitle"
+        >
+          {{ cherryPickLabel }}
+        </a>
+        <a
+          v-else-if="mr.cherryPickInForkPath"
+          v-tooltip
+          class="btn btn-default btn-xs"
+          data-method="post"
+          :href="mr.cherryPickInForkPath"
+          :title="cherryPickTitle"
+        >
+          {{ cherryPickLabel }}
+        </a>
+      </div>
+      <section class="mr-info-list">
+        <p>
+          {{ s__("mrWidget|The changes were merged into") }}
+          <span class="label-branch">
+            <a :href="mr.targetBranchPath">{{ mr.targetBranch }}</a>
+          </span>
+        </p>
+        <p v-if="mr.sourceBranchRemoved">
+          {{ s__("mrWidget|The source branch has been removed") }}
+        </p>
+        <p
+          v-if="shouldShowRemoveSourceBranch"
+          class="space-children"
+        >
+          <span>{{ s__("mrWidget|You can remove source branch now") }}</span>
+          <button
+            @click="removeSourceBranch"
+            :disabled="isMakingRequest"
+            type="button"
+            class="btn btn-xs btn-default js-remove-branch-button"
+          >
+            {{ s__("mrWidget|Remove Source Branch") }}
+          </button>
+        </p>
+        <p v-if="shouldShowSourceBranchRemoving">
+          <loading-icon :inline="true" />
+          <span>
+            {{ s__("mrWidget|The source branch is being removed") }}
+          </span>
+        </p>
+      </section>
+    </div>
+  </div>
+</template>
diff --git a/app/assets/javascripts/vue_merge_request_widget/dependencies.js b/app/assets/javascripts/vue_merge_request_widget/dependencies.js
index b930aca6877..2917090e073 100644
--- a/app/assets/javascripts/vue_merge_request_widget/dependencies.js
+++ b/app/assets/javascripts/vue_merge_request_widget/dependencies.js
@@ -16,7 +16,7 @@ export { default as WidgetMergeHelp } from './components/mr_widget_merge_help';
 export { default as WidgetPipeline } from './components/mr_widget_pipeline.vue';
 export { default as WidgetDeployment } from './components/mr_widget_deployment';
 export { default as WidgetRelatedLinks } from './components/mr_widget_related_links';
-export { default as MergedState } from './components/states/mr_widget_merged';
+export { default as MergedState } from './components/states/mr_widget_merged.vue';
 export { default as FailedToMerge } from './components/states/mr_widget_failed_to_merge.vue';
 export { default as ClosedState } from './components/states/mr_widget_closed.vue';
 export { default as MergingState } from './components/states/mr_widget_merging.vue';
diff --git a/app/models/ci/build.rb b/app/models/ci/build.rb
index df67fb243ad..6ced5fb0e24 100644
--- a/app/models/ci/build.rb
+++ b/app/models/ci/build.rb
@@ -466,7 +466,7 @@ module Ci
 
       if cache && project.jobs_cache_index
         cache = cache.merge(
-          key: "#{cache[:key]}:#{project.jobs_cache_index}")
+          key: "#{cache[:key]}_#{project.jobs_cache_index}")
       end
 
       [cache]
diff --git a/app/models/project_services/jira_service.rb b/app/models/project_services/jira_service.rb
index 2be35b6ea9d..23147d7f666 100644
--- a/app/models/project_services/jira_service.rb
+++ b/app/models/project_services/jira_service.rb
@@ -43,7 +43,7 @@ class JiraService < IssueTrackerService
       username: self.username,
       password: self.password,
       site: URI.join(url, '/').to_s,
-      context_path: url.path,
+      context_path: url.path.chomp('/'),
       auth_type: :basic,
       read_timeout: 120,
       use_cookies: true,
diff --git a/app/services/merge_requests/refresh_service.rb b/app/services/merge_requests/refresh_service.rb
index 9f05535d4d4..262622f8bd0 100644
--- a/app/services/merge_requests/refresh_service.rb
+++ b/app/services/merge_requests/refresh_service.rb
@@ -9,7 +9,8 @@ module MergeRequests
       Gitlab::GitalyClient.allow_n_plus_1_calls(&method(:find_new_commits))
       # Be sure to close outstanding MRs before reloading them to avoid generating an
       # empty diff during a manual merge
-      close_merge_requests
+      close_upon_missing_source_branch_ref
+      post_merge_manually_merged
       reload_merge_requests
       reset_merge_when_pipeline_succeeds
       mark_pending_todos_done
@@ -29,11 +30,22 @@ module MergeRequests
 
     private
 
+    def close_upon_missing_source_branch_ref
+      # MergeRequest#reload_diff ignores not opened MRs. This means it won't
+      # create an `empty` diff for `closed` MRs without a source branch, keeping
+      # the latest diff state as the last _valid_ one.
+      merge_requests_for_source_branch.reject(&:source_branch_exists?).each do |mr|
+        MergeRequests::CloseService
+          .new(mr.target_project, @current_user)
+          .execute(mr)
+      end
+    end
+
     # Collect open merge requests that target same branch we push into
     # and close if push to master include last commit from merge request
     # We need this to close(as merged) merge requests that were merged into
     # target branch manually
-    def close_merge_requests
+    def post_merge_manually_merged
       commit_ids = @commits.map(&:id)
       merge_requests = @project.merge_requests.preload(:latest_merge_request_diff).opened.where(target_branch: @branch_name).to_a
       merge_requests = merge_requests.select(&:diff_head_commit)
diff --git a/app/views/layouts/header/_new_dropdown.haml b/app/views/layouts/header/_new_dropdown.haml
index 088f2785092..eb32f393310 100644
--- a/app/views/layouts/header/_new_dropdown.haml
+++ b/app/views/layouts/header/_new_dropdown.haml
@@ -1,5 +1,5 @@
 %li.header-new.dropdown
-  = link_to new_project_path, class: "header-new-dropdown-toggle has-tooltip", title: "New...", ref: 'tooltip', aria: { label: "New..." }, data: { toggle: 'dropdown', placement: 'bottom', container: 'body' } do
+  = link_to new_project_path, class: "header-new-dropdown-toggle has-tooltip qa-new-menu-toggle", title: "New...", ref: 'tooltip', aria: { label: "New..." }, data: { toggle: 'dropdown', placement: 'bottom', container: 'body' } do
     = sprite_icon('plus-square', size: 16)
     = sprite_icon('angle-down', css_class: 'caret-down')
   .dropdown-menu-nav.dropdown-menu-align-right
diff --git a/app/views/projects/tags/_tag.html.haml b/app/views/projects/tags/_tag.html.haml
index 467f19b4c56..55e45a5e954 100644
--- a/app/views/projects/tags/_tag.html.haml
+++ b/app/views/projects/tags/_tag.html.haml
@@ -32,5 +32,5 @@
         = icon("pencil")
 
     - if can?(current_user, :admin_project, @project)
-      = link_to project_tag_path(@project, tag.name), class: "btn btn-remove remove-row has-tooltip #{protected_tag?(@project, tag) ? 'disabled' : ''}", title: s_('TagsPage|Delete tag'), method: :delete, data: { confirm: s_('TagsPage|Deleting the %{tag_name} tag cannot be undone. Are you sure?') % { tag_name: tag.name }, container: 'body' }, remote: true do
+      = link_to project_tag_path(@project, tag.name), class: "btn btn-remove remove-row has-tooltip prepend-left-10 #{protected_tag?(@project, tag) ? 'disabled' : ''}", title: s_('TagsPage|Delete tag'), method: :delete, data: { confirm: s_('TagsPage|Deleting the %{tag_name} tag cannot be undone. Are you sure?') % { tag_name: tag.name }, container: 'body' }, remote: true do
         = icon("trash-o")
diff --git a/bin/upgrade.rb b/bin/upgrade.rb
deleted file mode 100755
index a5caecf8526..00000000000
--- a/bin/upgrade.rb
+++ /dev/null
@@ -1,3 +0,0 @@
-require_relative "../lib/gitlab/upgrader"
-
-Gitlab::Upgrader.new.execute
diff --git a/changelogs/unreleased/32546-cannot-copy-paste-on-ios.yml b/changelogs/unreleased/32546-cannot-copy-paste-on-ios.yml
deleted file mode 100644
index f4c44983736..00000000000
--- a/changelogs/unreleased/32546-cannot-copy-paste-on-ios.yml
+++ /dev/null
@@ -1,5 +0,0 @@
----
-title: Fix copy/paste on iOS devices due to a bug in webkit
-merge_request: 15804
-author:
-type: fixed
diff --git a/changelogs/unreleased/41802-add-space-to-edit-delete-tag-btns.yml b/changelogs/unreleased/41802-add-space-to-edit-delete-tag-btns.yml
new file mode 100644
index 00000000000..f23a6452b0d
--- /dev/null
+++ b/changelogs/unreleased/41802-add-space-to-edit-delete-tag-btns.yml
@@ -0,0 +1,5 @@
+---
+title: Adds spacing between edit and delete tag btn in tag list
+merge_request: 16757
+author: Jacopo Beschi @jacopo-beschi
+type: fixed
diff --git a/changelogs/unreleased/42022-allow-users-to-request-access-not-visible-when-project-visibility-is-public.yml b/changelogs/unreleased/42022-allow-users-to-request-access-not-visible-when-project-visibility-is-public.yml
deleted file mode 100644
index 38684cd3c44..00000000000
--- a/changelogs/unreleased/42022-allow-users-to-request-access-not-visible-when-project-visibility-is-public.yml
+++ /dev/null
@@ -1,5 +0,0 @@
----
-title: Fix missing "allow users to request access" option in public project permissions
-merge_request: 16485
-author:
-type: fixed
diff --git a/changelogs/unreleased/42161-gitaly-commitservice-encoding-undefinedconversionerror-u-c124-from-utf-8-to-ascii-8bit.yml b/changelogs/unreleased/42161-gitaly-commitservice-encoding-undefinedconversionerror-u-c124-from-utf-8-to-ascii-8bit.yml
deleted file mode 100644
index c64bee9126e..00000000000
--- a/changelogs/unreleased/42161-gitaly-commitservice-encoding-undefinedconversionerror-u-c124-from-utf-8-to-ascii-8bit.yml
+++ /dev/null
@@ -1,5 +0,0 @@
----
-title: Fix encoding issue when counting commit count
-merge_request: 16637
-author:
-type: fixed
diff --git a/changelogs/unreleased/42327-import-from-gitlab-com-fails-destination-already-exists-and-is-not-an-empty-directory-error.yml b/changelogs/unreleased/42327-import-from-gitlab-com-fails-destination-already-exists-and-is-not-an-empty-directory-error.yml
deleted file mode 100644
index 660f4f5d42c..00000000000
--- a/changelogs/unreleased/42327-import-from-gitlab-com-fails-destination-already-exists-and-is-not-an-empty-directory-error.yml
+++ /dev/null
@@ -1,6 +0,0 @@
----
-title: Fixes destination already exists, and some particular service errors on Import/Export
-  error
-merge_request: 16714
-author:
-type: fixed
diff --git a/changelogs/unreleased/fix-postgresql-table-grant.yml b/changelogs/unreleased/fix-postgresql-table-grant.yml
deleted file mode 100644
index 1c6559f6f73..00000000000
--- a/changelogs/unreleased/fix-postgresql-table-grant.yml
+++ /dev/null
@@ -1,5 +0,0 @@
----
-title: Use has_table_privilege for TRIGGER on PostgreSQL
-merge_request:
-author:
-type: fixed
diff --git a/changelogs/unreleased/osw-fix-lost-diffs-when-source-branch-deleted.yml b/changelogs/unreleased/osw-fix-lost-diffs-when-source-branch-deleted.yml
new file mode 100644
index 00000000000..1cffb213f23
--- /dev/null
+++ b/changelogs/unreleased/osw-fix-lost-diffs-when-source-branch-deleted.yml
@@ -0,0 +1,5 @@
+---
+title: Close and do not reload MR diffs when source branch is deleted
+merge_request:
+author:
+type: fixed
diff --git a/changelogs/unreleased/osw-updates-merge-status-on-api-actions.yml b/changelogs/unreleased/osw-updates-merge-status-on-api-actions.yml
new file mode 100644
index 00000000000..3854985e576
--- /dev/null
+++ b/changelogs/unreleased/osw-updates-merge-status-on-api-actions.yml
@@ -0,0 +1,5 @@
+---
+title: Return more consistent values for merge_status on MR APIs
+merge_request:
+author:
+type: fixed
diff --git a/changelogs/unreleased/sh-fix-jira-trailing-slash.yml b/changelogs/unreleased/sh-fix-jira-trailing-slash.yml
new file mode 100644
index 00000000000..786f6cd3727
--- /dev/null
+++ b/changelogs/unreleased/sh-fix-jira-trailing-slash.yml
@@ -0,0 +1,5 @@
+---
+title: Fix JIRA not working when a trailing slash is included
+merge_request:
+author:
+type: fixed
diff --git a/config/application.rb b/config/application.rb
index 2067428ff62..751307de975 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -6,6 +6,7 @@ Bundler.require(:default, Rails.env)
 
 module Gitlab
   class Application < Rails::Application
+    require_dependency Rails.root.join('lib/gitlab/redis/wrapper')
     require_dependency Rails.root.join('lib/gitlab/redis/cache')
     require_dependency Rails.root.join('lib/gitlab/redis/queues')
     require_dependency Rails.root.join('lib/gitlab/redis/shared_state')
diff --git a/config/initializers/grape_route_helpers_fix.rb b/config/initializers/grape_route_helpers_fix.rb
index d3cf9e453d0..612cca3dfbd 100644
--- a/config/initializers/grape_route_helpers_fix.rb
+++ b/config/initializers/grape_route_helpers_fix.rb
@@ -1,5 +1,21 @@
 if defined?(GrapeRouteHelpers)
   module GrapeRouteHelpers
+    module AllRoutes
+      # Bringing in PR https://github.com/reprah/grape-route-helpers/pull/21 due to abandonment.
+      #
+      # Without the following fix, when two helper methods are the same, but have different arguments
+      # (for example: api_v1_cats_owners_path(id: 1) vs api_v1_cats_owners_path(id: 1, owner_id: 2))
+      # if the helper method with the least number of arguments is defined first (because the route was defined first)
+      # then it will shadow the longer route.
+      #
+      # The fix is to sort descending by amount of arguments
+      def decorated_routes
+        @decorated_routes ||= all_routes
+                                .map { |r| DecoratedRoute.new(r) }
+                                .sort_by { |r| -r.dynamic_path_segments.count }
+      end
+    end
+
     class DecoratedRoute
       # GrapeRouteHelpers gem tries to parse the versions
       # from a string, not supporting Grape `version` array definition.
diff --git a/doc/api/repository_files.md b/doc/api/repository_files.md
index a1a0b1b756c..c29dc22e12d 100644
--- a/doc/api/repository_files.md
+++ b/doc/api/repository_files.md
@@ -68,7 +68,7 @@ Example response:
 
 ```json
 {
-  "file_name": "app/project.rb",
+  "file_path": "app/project.rb",
   "branch": "master"
 }
 ```
@@ -98,7 +98,7 @@ Example response:
 
 ```json
 {
-  "file_name": "app/project.rb",
+  "file_path": "app/project.rb",
   "branch": "master"
 }
 ```
@@ -134,15 +134,6 @@ DELETE /projects/:id/repository/files/:file_path
 curl --request DELETE --header 'PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK' 'https://gitlab.example.com/api/v4/projects/13083/repository/files/app%2Fproject%2Erb?branch=master&author_email=author%40example.com&author_name=Firstname%20Lastname&commit_message=delete%20file'
 ```
 
-Example response:
-
-```json
-{
-  "file_name": "app/project.rb",
-  "branch": "master"
-}
-```
-
 Parameters:
 
 - `file_path` (required) - Url encoded full path to new file. Ex. lib%2Fclass%2Erb
diff --git a/doc/user/project/repository/branches/index.md b/doc/user/project/repository/branches/index.md
index 26c55891b3c..9d16a4c74f2 100644
--- a/doc/user/project/repository/branches/index.md
+++ b/doc/user/project/repository/branches/index.md
@@ -18,7 +18,7 @@ When you create a new [project](../../index.md), GitLab sets `master` as the def
 branch for your project. You can choose another branch to be your project's
 default under your project's **Settings > General**.
 
-The default branch is the branched affected by the
+The default branch is the branch affected by the
 [issue closing pattern](../../issues/automatic_issue_closing.md),
 which means that _an issue will be closed when a merge request is merged to
 the **default branch**_.
diff --git a/lib/api/entities.rb b/lib/api/entities.rb
index 7b9a80a234b..cb222697f32 100644
--- a/lib/api/entities.rb
+++ b/lib/api/entities.rb
@@ -507,7 +507,15 @@ module API
       expose :work_in_progress?, as: :work_in_progress
       expose :milestone, using: Entities::Milestone
       expose :merge_when_pipeline_succeeds
-      expose :merge_status
+
+      # Ideally we should deprecate `MergeRequest#merge_status` exposure and
+      # use `MergeRequest#mergeable?` instead (boolean).
+      # See https://gitlab.com/gitlab-org/gitlab-ce/issues/42344 for more
+      # information.
+      expose :merge_status do |merge_request|
+        merge_request.check_if_can_be_merged
+        merge_request.merge_status
+      end
       expose :diff_head_sha, as: :sha
       expose :merge_commit_sha
       expose :user_notes_count
diff --git a/lib/gitlab/popen.rb b/lib/gitlab/popen.rb
index 4bc5cda8cb5..b9832a724c4 100644
--- a/lib/gitlab/popen.rb
+++ b/lib/gitlab/popen.rb
@@ -5,7 +5,17 @@ module Gitlab
   module Popen
     extend self
 
-    def popen(cmd, path = nil, vars = {})
+    Result = Struct.new(:cmd, :stdout, :stderr, :status, :duration)
+
+    # Returns [stdout + stderr, status]
+    def popen(cmd, path = nil, vars = {}, &block)
+      result = popen_with_detail(cmd, path, vars, &block)
+
+      [result.stdout << result.stderr, result.status&.exitstatus]
+    end
+
+    # Returns Result
+    def popen_with_detail(cmd, path = nil, vars = {})
       unless cmd.is_a?(Array)
         raise "System commands must be given as an array of strings"
       end
@@ -18,18 +28,21 @@ module Gitlab
         FileUtils.mkdir_p(path)
       end
 
-      cmd_output = ""
-      cmd_status = 0
+      cmd_stdout = ''
+      cmd_stderr = ''
+      cmd_status = nil
+      start = Time.now
+
       Open3.popen3(vars, *cmd, options) do |stdin, stdout, stderr, wait_thr|
         yield(stdin) if block_given?
         stdin.close
 
-        cmd_output << stdout.read
-        cmd_output << stderr.read
-        cmd_status = wait_thr.value.exitstatus
+        cmd_stdout = stdout.read
+        cmd_stderr = stderr.read
+        cmd_status = wait_thr.value
       end
 
-      [cmd_output, cmd_status]
+      Result.new(cmd, cmd_stdout, cmd_stderr, cmd_status, Time.now - start)
     end
   end
 end
diff --git a/lib/gitlab/popen/runner.rb b/lib/gitlab/popen/runner.rb
new file mode 100644
index 00000000000..f44035a48bb
--- /dev/null
+++ b/lib/gitlab/popen/runner.rb
@@ -0,0 +1,46 @@
+module Gitlab
+  module Popen
+    class Runner
+      attr_reader :results
+
+      def initialize
+        @results = []
+      end
+
+      def run(commands, &block)
+        commands.each do |cmd|
+          # yield doesn't support blocks, so we need to use a block variable
+          block.call(cmd) do # rubocop:disable Performance/RedundantBlockCall
+            cmd_result = Gitlab::Popen.popen_with_detail(cmd)
+
+            results << cmd_result
+
+            cmd_result
+          end
+        end
+      end
+
+      def all_success_and_clean?
+        all_success? && all_stderr_empty?
+      end
+
+      def all_success?
+        results.all? { |result| result.status.success? }
+      end
+
+      def all_stderr_empty?
+        results.all? { |result| result.stderr.empty? }
+      end
+
+      def failed_results
+        results.reject { |result| result.status.success? }
+      end
+
+      def warned_results
+        results.select do |result|
+          result.status.success? && !result.stderr.empty?
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/redis/cache.rb b/lib/gitlab/redis/cache.rb
index 9bf019b72e6..a991933e910 100644
--- a/lib/gitlab/redis/cache.rb
+++ b/lib/gitlab/redis/cache.rb
@@ -1,5 +1,5 @@
 # please require all dependencies below:
-require_relative 'wrapper' unless defined?(::Gitlab::Redis::Wrapper)
+require_relative 'wrapper' unless defined?(::Rails) && ::Rails.root.present?
 
 module Gitlab
   module Redis
diff --git a/lib/tasks/gitlab/task_helpers.rb b/lib/gitlab/task_helpers.rb
index c1182af1014..34bee6fecbe 100644
--- a/lib/tasks/gitlab/task_helpers.rb
+++ b/lib/gitlab/task_helpers.rb
@@ -1,6 +1,7 @@
 require 'rainbow/ext/string'
 require 'gitlab/utils/strong_memoize'
 
+# rubocop:disable Rails/Output
 module Gitlab
   TaskFailedError = Class.new(StandardError)
   TaskAbortedByUserError = Class.new(StandardError)
@@ -96,11 +97,9 @@ module Gitlab
     end
 
     def gid_for(group_name)
-      begin
-        Etc.getgrnam(group_name).gid
-      rescue ArgumentError # no group
-        "group #{group_name} doesn't exist"
-      end
+      Etc.getgrnam(group_name).gid
+    rescue ArgumentError # no group
+      "group #{group_name} doesn't exist"
     end
 
     def gitlab_user
diff --git a/lib/gitlab/upgrader.rb b/lib/gitlab/upgrader.rb
index 3b64cb32afa..d545f2f95f1 100644
--- a/lib/gitlab/upgrader.rb
+++ b/lib/gitlab/upgrader.rb
@@ -1,6 +1,3 @@
-require_relative "popen"
-require_relative "version_info"
-
 module Gitlab
   class Upgrader
     def execute
diff --git a/lib/system_check/helpers.rb b/lib/system_check/helpers.rb
index c42ae4fe4c4..914ed794601 100644
--- a/lib/system_check/helpers.rb
+++ b/lib/system_check/helpers.rb
@@ -1,5 +1,3 @@
-require 'tasks/gitlab/task_helpers'
-
 module SystemCheck
   module Helpers
     include ::Gitlab::TaskHelpers
diff --git a/lib/tasks/flay.rake b/lib/tasks/flay.rake
index 7ad2b2e4d39..b1e012e70c5 100644
--- a/lib/tasks/flay.rake
+++ b/lib/tasks/flay.rake
@@ -1,6 +1,6 @@
 desc 'Code duplication analyze via flay'
 task :flay do
-  output = `bundle exec flay --mass 35 app/ lib/gitlab/`
+  output = `bundle exec flay --mass 35 app/ lib/gitlab/ 2> #{File::NULL}`
 
   if output.include? "Similar code found"
     puts output
diff --git a/lib/tasks/gitlab/backup.rake b/lib/tasks/gitlab/backup.rake
index 2383bcf954b..24e37f6c6cc 100644
--- a/lib/tasks/gitlab/backup.rake
+++ b/lib/tasks/gitlab/backup.rake
@@ -4,7 +4,7 @@ namespace :gitlab do
   namespace :backup do
     # Create backup of GitLab system
     desc "GitLab | Create a backup of the GitLab system"
-    task create: :environment do
+    task create: :gitlab_environment do
       warn_user_is_not_gitlab
       configure_cron_mode
 
@@ -25,7 +25,7 @@ namespace :gitlab do
 
     # Restore backup of GitLab system
     desc 'GitLab | Restore a previously created backup'
-    task restore: :environment do
+    task restore: :gitlab_environment do
       warn_user_is_not_gitlab
       configure_cron_mode
 
@@ -73,7 +73,7 @@ namespace :gitlab do
     end
 
     namespace :repo do
-      task create: :environment do
+      task create: :gitlab_environment do
         $progress.puts "Dumping repositories ...".color(:blue)
 
         if ENV["SKIP"] && ENV["SKIP"].include?("repositories")
@@ -84,7 +84,7 @@ namespace :gitlab do
         end
       end
 
-      task restore: :environment do
+      task restore: :gitlab_environment do
         $progress.puts "Restoring repositories ...".color(:blue)
         Backup::Repository.new.restore
         $progress.puts "done".color(:green)
@@ -92,7 +92,7 @@ namespace :gitlab do
     end
 
     namespace :db do
-      task create: :environment do
+      task create: :gitlab_environment do
         $progress.puts "Dumping database ... ".color(:blue)
 
         if ENV["SKIP"] && ENV["SKIP"].include?("db")
@@ -103,7 +103,7 @@ namespace :gitlab do
         end
       end
 
-      task restore: :environment do
+      task restore: :gitlab_environment do
         $progress.puts "Restoring database ... ".color(:blue)
         Backup::Database.new.restore
         $progress.puts "done".color(:green)
@@ -111,7 +111,7 @@ namespace :gitlab do
     end
 
     namespace :builds do
-      task create: :environment do
+      task create: :gitlab_environment do
         $progress.puts "Dumping builds ... ".color(:blue)
 
         if ENV["SKIP"] && ENV["SKIP"].include?("builds")
@@ -122,7 +122,7 @@ namespace :gitlab do
         end
       end
 
-      task restore: :environment do
+      task restore: :gitlab_environment do
         $progress.puts "Restoring builds ... ".color(:blue)
         Backup::Builds.new.restore
         $progress.puts "done".color(:green)
@@ -130,7 +130,7 @@ namespace :gitlab do
     end
 
     namespace :uploads do
-      task create: :environment do
+      task create: :gitlab_environment do
         $progress.puts "Dumping uploads ... ".color(:blue)
 
         if ENV["SKIP"] && ENV["SKIP"].include?("uploads")
@@ -141,7 +141,7 @@ namespace :gitlab do
         end
       end
 
-      task restore: :environment do
+      task restore: :gitlab_environment do
         $progress.puts "Restoring uploads ... ".color(:blue)
         Backup::Uploads.new.restore
         $progress.puts "done".color(:green)
@@ -149,7 +149,7 @@ namespace :gitlab do
     end
 
     namespace :artifacts do
-      task create: :environment do
+      task create: :gitlab_environment do
         $progress.puts "Dumping artifacts ... ".color(:blue)
 
         if ENV["SKIP"] && ENV["SKIP"].include?("artifacts")
@@ -160,7 +160,7 @@ namespace :gitlab do
         end
       end
 
-      task restore: :environment do
+      task restore: :gitlab_environment do
         $progress.puts "Restoring artifacts ... ".color(:blue)
         Backup::Artifacts.new.restore
         $progress.puts "done".color(:green)
@@ -168,7 +168,7 @@ namespace :gitlab do
     end
 
     namespace :pages do
-      task create: :environment do
+      task create: :gitlab_environment do
         $progress.puts "Dumping pages ... ".color(:blue)
 
         if ENV["SKIP"] && ENV["SKIP"].include?("pages")
@@ -179,7 +179,7 @@ namespace :gitlab do
         end
       end
 
-      task restore: :environment do
+      task restore: :gitlab_environment do
         $progress.puts "Restoring pages ... ".color(:blue)
         Backup::Pages.new.restore
         $progress.puts "done".color(:green)
@@ -187,7 +187,7 @@ namespace :gitlab do
     end
 
     namespace :lfs do
-      task create: :environment do
+      task create: :gitlab_environment do
         $progress.puts "Dumping lfs objects ... ".color(:blue)
 
         if ENV["SKIP"] && ENV["SKIP"].include?("lfs")
@@ -198,7 +198,7 @@ namespace :gitlab do
         end
       end
 
-      task restore: :environment do
+      task restore: :gitlab_environment do
         $progress.puts "Restoring lfs objects ... ".color(:blue)
         Backup::Lfs.new.restore
         $progress.puts "done".color(:green)
@@ -206,7 +206,7 @@ namespace :gitlab do
     end
 
     namespace :registry do
-      task create: :environment do
+      task create: :gitlab_environment do
         $progress.puts "Dumping container registry images ... ".color(:blue)
 
         if Gitlab.config.registry.enabled
@@ -221,7 +221,7 @@ namespace :gitlab do
         end
       end
 
-      task restore: :environment do
+      task restore: :gitlab_environment do
         $progress.puts "Restoring container registry images ... ".color(:blue)
 
         if Gitlab.config.registry.enabled
diff --git a/lib/tasks/gitlab/check.rake b/lib/tasks/gitlab/check.rake
index a584eb97cf5..e05a3aad824 100644
--- a/lib/tasks/gitlab/check.rake
+++ b/lib/tasks/gitlab/check.rake
@@ -1,7 +1,3 @@
-# Temporary hack, until we migrate all checks to SystemCheck format
-require 'system_check'
-require 'system_check/helpers'
-
 namespace :gitlab do
   desc 'GitLab | Check the configuration of GitLab and its environment'
   task check: %w{gitlab:gitlab_shell:check
@@ -12,7 +8,7 @@ namespace :gitlab do
 
   namespace :app do
     desc 'GitLab | Check the configuration of the GitLab Rails app'
-    task check: :environment  do
+    task check: :gitlab_environment do
       warn_user_is_not_gitlab
 
       checks = [
@@ -43,7 +39,7 @@ namespace :gitlab do
 
   namespace :gitlab_shell do
     desc "GitLab | Check the configuration of GitLab Shell"
-    task check: :environment  do
+    task check: :gitlab_environment do
       warn_user_is_not_gitlab
       start_checking "GitLab Shell"
 
@@ -251,7 +247,7 @@ namespace :gitlab do
 
   namespace :sidekiq do
     desc "GitLab | Check the configuration of Sidekiq"
-    task check: :environment  do
+    task check: :gitlab_environment do
       warn_user_is_not_gitlab
       start_checking "Sidekiq"
 
@@ -310,7 +306,7 @@ namespace :gitlab do
 
   namespace :incoming_email do
     desc "GitLab | Check the configuration of Reply by email"
-    task check: :environment  do
+    task check: :gitlab_environment do
       warn_user_is_not_gitlab
 
       if Gitlab.config.incoming_email.enabled
@@ -333,7 +329,7 @@ namespace :gitlab do
   end
 
   namespace :ldap do
-    task :check, [:limit] => :environment do |_, args|
+    task :check, [:limit] => :gitlab_environment do |_, args|
       # Only show up to 100 results because LDAP directories can be very big.
       # This setting only affects the `rake gitlab:check` script.
       args.with_defaults(limit: 100)
@@ -389,7 +385,7 @@ namespace :gitlab do
 
   namespace :repo do
     desc "GitLab | Check the integrity of the repositories managed by GitLab"
-    task check: :environment do
+    task check: :gitlab_environment do
       puts "This task is deprecated. Please use gitlab:git:fsck instead".color(:red)
       Rake::Task["gitlab:git:fsck"].execute
     end
@@ -397,7 +393,7 @@ namespace :gitlab do
 
   namespace :orphans do
     desc 'Gitlab | Check for orphaned namespaces and repositories'
-    task check: :environment do
+    task check: :gitlab_environment do
       warn_user_is_not_gitlab
       checks = [
         SystemCheck::Orphans::NamespaceCheck,
@@ -408,7 +404,7 @@ namespace :gitlab do
     end
 
     desc 'GitLab | Check for orphaned namespaces in the repositories path'
-    task check_namespaces: :environment do
+    task check_namespaces: :gitlab_environment do
       warn_user_is_not_gitlab
       checks = [SystemCheck::Orphans::NamespaceCheck]
 
@@ -416,7 +412,7 @@ namespace :gitlab do
     end
 
     desc 'GitLab | Check for orphaned repositories in the repositories path'
-    task check_repositories: :environment do
+    task check_repositories: :gitlab_environment do
       warn_user_is_not_gitlab
       checks = [SystemCheck::Orphans::RepositoryCheck]
 
@@ -426,7 +422,7 @@ namespace :gitlab do
 
   namespace :user do
     desc "GitLab | Check the integrity of a specific user's repositories"
-    task :check_repos, [:username] => :environment do |t, args|
+    task :check_repos, [:username] => :gitlab_environment do |t, args|
       username = args[:username] || prompt("Check repository integrity for username? ".color(:blue))
       user = User.find_by(username: username)
       if user
diff --git a/lib/tasks/gitlab/cleanup.rake b/lib/tasks/gitlab/cleanup.rake
index ab601b0d66b..5a53eac0897 100644
--- a/lib/tasks/gitlab/cleanup.rake
+++ b/lib/tasks/gitlab/cleanup.rake
@@ -5,7 +5,7 @@ namespace :gitlab do
     HASHED_REPOSITORY_NAME = '@hashed'.freeze
 
     desc "GitLab | Cleanup | Clean namespaces"
-    task dirs: :environment  do
+    task dirs: :gitlab_environment do
       warn_user_is_not_gitlab
       remove_flag = ENV['REMOVE']
 
@@ -49,7 +49,7 @@ namespace :gitlab do
     end
 
     desc "GitLab | Cleanup | Clean repositories"
-    task repos: :environment  do
+    task repos: :gitlab_environment do
       warn_user_is_not_gitlab
 
       move_suffix = "+orphaned+#{Time.now.to_i}"
@@ -78,7 +78,7 @@ namespace :gitlab do
     end
 
     desc "GitLab | Cleanup | Block users that have been removed in LDAP"
-    task block_removed_ldap_users: :environment  do
+    task block_removed_ldap_users: :gitlab_environment do
       warn_user_is_not_gitlab
       block_flag = ENV['BLOCK']
 
@@ -109,7 +109,7 @@ namespace :gitlab do
     # released. So likely this should only be run once on gitlab.com
     # Faulty refs are moved so they are kept around, else some features break.
     desc 'GitLab | Cleanup | Remove faulty deployment refs'
-    task move_faulty_deployment_refs: :environment do
+    task move_faulty_deployment_refs: :gitlab_environment do
       projects = Project.where(id: Deployment.select(:project_id).distinct)
 
       projects.find_each do |project|
diff --git a/lib/tasks/gitlab/git.rake b/lib/tasks/gitlab/git.rake
index 3f5dd2ae3b3..cb4f7e5c8a8 100644
--- a/lib/tasks/gitlab/git.rake
+++ b/lib/tasks/gitlab/git.rake
@@ -1,7 +1,7 @@
 namespace :gitlab do
   namespace :git do
     desc "GitLab | Git | Repack"
-    task repack: :environment do
+    task repack: :gitlab_environment do
       failures = perform_git_cmd(%W(#{Gitlab.config.git.bin_path} repack -a --quiet), "Repacking repo")
       if failures.empty?
         puts "Done".color(:green)
@@ -11,7 +11,7 @@ namespace :gitlab do
     end
 
     desc "GitLab | Git | Run garbage collection on all repos"
-    task gc: :environment do
+    task gc: :gitlab_environment do
       failures = perform_git_cmd(%W(#{Gitlab.config.git.bin_path} gc --auto --quiet), "Garbage Collecting")
       if failures.empty?
         puts "Done".color(:green)
@@ -21,7 +21,7 @@ namespace :gitlab do
     end
 
     desc "GitLab | Git | Prune all repos"
-    task prune: :environment do
+    task prune: :gitlab_environment do
       failures = perform_git_cmd(%W(#{Gitlab.config.git.bin_path} prune), "Git Prune")
       if failures.empty?
         puts "Done".color(:green)
@@ -31,7 +31,7 @@ namespace :gitlab do
     end
 
     desc 'GitLab | Git | Check all repos integrity'
-    task fsck: :environment do
+    task fsck: :gitlab_environment do
       failures = perform_git_cmd(%W(#{Gitlab.config.git.bin_path} fsck --name-objects --no-progress), "Checking integrity") do |repo|
         check_config_lock(repo)
         check_ref_locks(repo)
diff --git a/lib/tasks/gitlab/gitaly.rake b/lib/tasks/gitlab/gitaly.rake
index aece8893974..107ff1d8aeb 100644
--- a/lib/tasks/gitlab/gitaly.rake
+++ b/lib/tasks/gitlab/gitaly.rake
@@ -1,7 +1,7 @@
 namespace :gitlab do
   namespace :gitaly do
     desc "GitLab | Install or upgrade gitaly"
-    task :install, [:dir, :repo] => :environment do |t, args|
+    task :install, [:dir, :repo] => :gitlab_environment do |t, args|
       require 'toml'
 
       warn_user_is_not_gitlab
diff --git a/lib/tasks/gitlab/helpers.rake b/lib/tasks/gitlab/helpers.rake
index b0a24790c4a..14d1125a03d 100644
--- a/lib/tasks/gitlab/helpers.rake
+++ b/lib/tasks/gitlab/helpers.rake
@@ -1,8 +1,6 @@
-require 'tasks/gitlab/task_helpers'
-
 # Prevent StateMachine warnings from outputting during a cron task
 StateMachines::Machine.ignore_method_conflicts = true if ENV['CRON']
 
-namespace :gitlab do
+task gitlab_environment: :environment do
   extend SystemCheck::Helpers
 end
diff --git a/lib/tasks/gitlab/info.rake b/lib/tasks/gitlab/info.rake
index e9fb6a008b0..45e9a1a1c72 100644
--- a/lib/tasks/gitlab/info.rake
+++ b/lib/tasks/gitlab/info.rake
@@ -1,7 +1,7 @@
 namespace :gitlab do
   namespace :env do
     desc "GitLab | Show information about GitLab and its environment"
-    task info: :environment  do
+    task info: :gitlab_environment do
       # check if there is an RVM environment
       rvm_version = run_and_match(%w(rvm --version), /[\d\.]+/).try(:to_s)
       # check Ruby version
diff --git a/lib/tasks/gitlab/setup.rake b/lib/tasks/gitlab/setup.rake
index 05fcb8e3da5..1d903c81358 100644
--- a/lib/tasks/gitlab/setup.rake
+++ b/lib/tasks/gitlab/setup.rake
@@ -1,6 +1,6 @@
 namespace :gitlab do
   desc "GitLab | Setup production application"
-  task setup: :environment do
+  task setup: :gitlab_environment do
     setup_db
   end
 
diff --git a/lib/tasks/gitlab/shell.rake b/lib/tasks/gitlab/shell.rake
index 12ae4199b69..844664b12d4 100644
--- a/lib/tasks/gitlab/shell.rake
+++ b/lib/tasks/gitlab/shell.rake
@@ -1,7 +1,7 @@
 namespace :gitlab do
   namespace :shell do
     desc "GitLab | Install or upgrade gitlab-shell"
-    task :install, [:repo] => :environment do |t, args|
+    task :install, [:repo] => :gitlab_environment do |t, args|
       warn_user_is_not_gitlab
 
       default_version = Gitlab::Shell.version_required
@@ -58,12 +58,12 @@ namespace :gitlab do
     end
 
     desc "GitLab | Setup gitlab-shell"
-    task setup: :environment do
+    task setup: :gitlab_environment do
       setup
     end
 
     desc "GitLab | Build missing projects"
-    task build_missing_projects: :environment do
+    task build_missing_projects: :gitlab_environment do
       Project.find_each(batch_size: 1000) do |project|
         path_to_repo = project.repository.path_to_repo
         if File.exist?(path_to_repo)
@@ -80,7 +80,7 @@ namespace :gitlab do
     end
 
     desc 'Create or repair repository hooks symlink'
-    task create_hooks: :environment do
+    task create_hooks: :gitlab_environment do
       warn_user_is_not_gitlab
 
       puts 'Creating/Repairing hooks symlinks for all repositories'
diff --git a/lib/tasks/gitlab/workhorse.rake b/lib/tasks/gitlab/workhorse.rake
index 308ffb0e284..b917a293095 100644
--- a/lib/tasks/gitlab/workhorse.rake
+++ b/lib/tasks/gitlab/workhorse.rake
@@ -1,7 +1,7 @@
 namespace :gitlab do
   namespace :workhorse do
     desc "GitLab | Install or upgrade gitlab-workhorse"
-    task :install, [:dir, :repo] => :environment do |t, args|
+    task :install, [:dir, :repo] => :gitlab_environment do |t, args|
       warn_user_is_not_gitlab
 
       unless args.dir.present?
diff --git a/lib/tasks/haml-lint.rake b/lib/tasks/haml-lint.rake
index ad2d034b0b4..5c0cc4990fc 100644
--- a/lib/tasks/haml-lint.rake
+++ b/lib/tasks/haml-lint.rake
@@ -2,5 +2,14 @@ unless Rails.env.production?
   require 'haml_lint/rake_task'
   require 'haml_lint/inline_javascript'
 
+  # Workaround for warnings from parser/current
+  # TODO: Remove this after we update parser gem
+  task :haml_lint do
+    require 'parser'
+    def Parser.warn(*args)
+      puts(*args) # static-analysis ignores stdout if status is 0
+    end
+  end
+
   HamlLint::RakeTask.new
 end
diff --git a/lib/tasks/migrate/setup_postgresql.rake b/lib/tasks/migrate/setup_postgresql.rake
index c996537cfbe..31cbd651edb 100644
--- a/lib/tasks/migrate/setup_postgresql.rake
+++ b/lib/tasks/migrate/setup_postgresql.rake
@@ -1,16 +1,14 @@
-require Rails.root.join('lib/gitlab/database')
-require Rails.root.join('lib/gitlab/database/migration_helpers')
-require Rails.root.join('db/migrate/20151007120511_namespaces_projects_path_lower_indexes')
-require Rails.root.join('db/migrate/20151008110232_add_users_lower_username_email_indexes')
-require Rails.root.join('db/migrate/20161212142807_add_lower_path_index_to_routes')
-require Rails.root.join('db/migrate/20170317203554_index_routes_path_for_like')
-require Rails.root.join('db/migrate/20170724214302_add_lower_path_index_to_redirect_routes')
-require Rails.root.join('db/migrate/20170503185032_index_redirect_routes_path_for_like')
-require Rails.root.join('db/migrate/20171220191323_add_index_on_namespaces_lower_name.rb')
-require Rails.root.join('db/migrate/20180113220114_rework_redirect_routes_indexes.rb')
-
 desc 'GitLab | Sets up PostgreSQL'
 task setup_postgresql: :environment do
+  require Rails.root.join('db/migrate/20151007120511_namespaces_projects_path_lower_indexes')
+  require Rails.root.join('db/migrate/20151008110232_add_users_lower_username_email_indexes')
+  require Rails.root.join('db/migrate/20161212142807_add_lower_path_index_to_routes')
+  require Rails.root.join('db/migrate/20170317203554_index_routes_path_for_like')
+  require Rails.root.join('db/migrate/20170724214302_add_lower_path_index_to_redirect_routes')
+  require Rails.root.join('db/migrate/20170503185032_index_redirect_routes_path_for_like')
+  require Rails.root.join('db/migrate/20171220191323_add_index_on_namespaces_lower_name.rb')
+  require Rails.root.join('db/migrate/20180113220114_rework_redirect_routes_indexes.rb')
+
   NamespacesProjectsPathLowerIndexes.new.up
   AddUsersLowerUsernameEmailIndexes.new.up
   AddLowerPathIndexToRoutes.new.up
diff --git a/qa/qa.rb b/qa/qa.rb
index 180ee778fd4..bd24f241747 100644
--- a/qa/qa.rb
+++ b/qa/qa.rb
@@ -27,6 +27,7 @@ module QA
     module Resource
       autoload :Sandbox, 'qa/factory/resource/sandbox'
       autoload :Group, 'qa/factory/resource/group'
+      autoload :Issue, 'qa/factory/resource/issue'
       autoload :Project, 'qa/factory/resource/project'
       autoload :MergeRequest, 'qa/factory/resource/merge_request'
       autoload :DeployKey, 'qa/factory/resource/deploy_key'
@@ -125,6 +126,12 @@ module QA
         autoload :SecretVariables, 'qa/page/project/settings/secret_variables'
         autoload :Runners, 'qa/page/project/settings/runners'
       end
+
+      module Issue
+        autoload :New, 'qa/page/project/issue/new'
+        autoload :Show, 'qa/page/project/issue/show'
+        autoload :Index, 'qa/page/project/issue/index'
+      end
     end
 
     module Profile
diff --git a/qa/qa/factory/resource/issue.rb b/qa/qa/factory/resource/issue.rb
new file mode 100644
index 00000000000..06e7e8df56c
--- /dev/null
+++ b/qa/qa/factory/resource/issue.rb
@@ -0,0 +1,34 @@
+require 'securerandom'
+
+module QA
+  module Factory
+    module Resource
+      class Issue < Factory::Base
+        attr_writer :title, :description, :project
+
+        dependency Factory::Resource::Project, as: :project do |project|
+          project.name = 'project-for-issues'
+          project.description = 'project for adding issues'
+        end
+
+        product :title do
+          Page::Project::Issue::Show.act { issue_title }
+        end
+
+        def fabricate!
+          project.visit!
+
+          Page::Project::Show.act do
+            go_to_new_issue
+          end
+
+          Page::Project::Issue::New.perform do |page|
+            page.add_title(@title)
+            page.add_description(@description)
+            page.create_new_issue
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/qa/qa/page/base.rb b/qa/qa/page/base.rb
index f472e8ccc7e..7a2d9731205 100644
--- a/qa/qa/page/base.rb
+++ b/qa/qa/page/base.rb
@@ -42,6 +42,23 @@ module QA
         page.within(selector) { yield } if block_given?
       end
 
+      # Returns true if successfully GETs the given URL
+      # Useful because `page.status_code` is unsupported by our driver, and
+      # we don't have access to the `response` to use `have_http_status`.
+      def asset_exists?(url)
+        page.execute_script <<~JS
+          xhr = new XMLHttpRequest();
+          xhr.open('GET', '#{url}', true);
+          xhr.send();
+        JS
+
+        return false unless wait(time: 0.5, max: 60, reload: false) do
+          page.evaluate_script('xhr.readyState == XMLHttpRequest.DONE')
+        end
+
+        page.evaluate_script('xhr.status') == 200
+      end
+
       def find_element(name)
         find(element_selector_css(name))
       end
@@ -80,6 +97,21 @@ module QA
         views.map(&:errors).flatten
       end
 
+      # Not tested and not expected to work with multiple dropzones
+      # instantiated on one page because there is no distinguishing
+      # attribute per dropzone file field.
+      def attach_file_to_dropzone(attachment, dropzone_form_container)
+        filename = File.basename(attachment)
+
+        field_style = { visibility: 'visible', height: '', width: '' }
+        attach_file(attachment, class: 'dz-hidden-input', make_visible: field_style)
+
+        # Wait for link to be appended to dropzone text
+        wait(reload: false) do
+          find("#{dropzone_form_container} textarea").value.match(filename)
+        end
+      end
+
       class DSL
         attr_reader :views
 
diff --git a/qa/qa/page/group/show.rb b/qa/qa/page/group/show.rb
index ac1fd9b5f90..82985703e54 100644
--- a/qa/qa/page/group/show.rb
+++ b/qa/qa/page/group/show.rb
@@ -3,23 +3,14 @@ module QA
     module Group
       class Show < Page::Base
         view 'app/views/groups/show.html.haml' do
-          element :dropdown_toggle, '.dropdown-toggle'
-          element :new_project_subgroup, '.new-project-subgroup'
-
-          element :new_project_toggle,
-            /%li.+ data: { value: "new\-project"/
-          element :new_project_button,
-            /%input.+ data: { action: "new\-project"/
-
-          element :new_subgroup_toggle,
-            /%li.+ data: { value: "new\-subgroup"/
-          # TODO: input[data-action='new-subgroup'] seems to be handled by JS?
-          # See app/assets/javascripts/groups/new_group_child.js
-        end
-
-        view 'app/views/shared/groups/_search_form.html.haml' do
-          element :filter_by_name,
-            "placeholder: s_('GroupsTree|Filter by name...')"
+          element :new_project_or_subgroup_dropdown, '.new-project-subgroup'
+          element :new_project_or_subgroup_dropdown_toggle, '.dropdown-toggle'
+          element :new_project_option, /%li.*data:.*value: "new-project"/
+          element :new_project_button, /%input.*data:.*action: "new-project"/
+          element :new_subgroup_option, /%li.*data:.*value: "new-subgroup"/
+
+          # data-value and data-action get modified by JS for subgroup
+          element :new_subgroup_button, /%input.*\.js-new-group-child/
         end
 
         def go_to_subgroup(name)
diff --git a/qa/qa/page/menu/side.rb b/qa/qa/page/menu/side.rb
index b2738152907..5fdcea20029 100644
--- a/qa/qa/page/menu/side.rb
+++ b/qa/qa/page/menu/side.rb
@@ -7,6 +7,8 @@ module QA
           element :settings_link, 'link_to edit_project_path'
           element :repository_link, "title: 'Repository'"
           element :pipelines_settings_link, "title: 'CI / CD'"
+          element :issues_link, %r{link_to.*shortcuts-issues}
+          element :issues_link_text, "Issues"
           element :top_level_items, '.sidebar-top-level-items'
           element :activity_link, "title: 'Activity'"
         end
@@ -43,6 +45,12 @@ module QA
           end
         end
 
+        def click_issues
+          within_sidebar do
+            click_link('Issues')
+          end
+        end
+
         private
 
         def hover_settings
diff --git a/qa/qa/page/project/issue/index.rb b/qa/qa/page/project/issue/index.rb
new file mode 100644
index 00000000000..b5903f536a4
--- /dev/null
+++ b/qa/qa/page/project/issue/index.rb
@@ -0,0 +1,17 @@
+module QA
+  module Page
+    module Project
+      module Issue
+        class Index < Page::Base
+          view 'app/views/projects/issues/_issue.html.haml' do
+            element :issue_link, 'link_to issue.title'
+          end
+
+          def go_to_issue(title)
+            click_link(title)
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/qa/qa/page/project/issue/new.rb b/qa/qa/page/project/issue/new.rb
new file mode 100644
index 00000000000..7fc581da1ed
--- /dev/null
+++ b/qa/qa/page/project/issue/new.rb
@@ -0,0 +1,33 @@
+module QA
+  module Page
+    module Project
+      module Issue
+        class New < Page::Base
+          view 'app/views/shared/issuable/_form.html.haml' do
+            element :submit_issue_button, 'form.submit "Submit'
+          end
+
+          view 'app/views/shared/issuable/form/_title.html.haml' do
+            element :issue_title_textbox, 'form.text_field :title'
+          end
+
+          view 'app/views/shared/form_elements/_description.html.haml' do
+            element :issue_description_textarea, "render 'projects/zen', f: form, attr: :description"
+          end
+
+          def add_title(title)
+            fill_in 'issue_title', with: title
+          end
+
+          def add_description(description)
+            fill_in 'issue_description', with: description
+          end
+
+          def create_new_issue
+            click_on 'Submit issue'
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/qa/qa/page/project/issue/show.rb b/qa/qa/page/project/issue/show.rb
new file mode 100644
index 00000000000..10644c0fecc
--- /dev/null
+++ b/qa/qa/page/project/issue/show.rb
@@ -0,0 +1,37 @@
+module QA
+  module Page
+    module Project
+      module Issue
+        class Show < Page::Base
+          view 'app/views/projects/issues/show.html.haml' do
+            element :issue_details, '.issue-details'
+            element :title, '.title'
+          end
+
+          view 'app/views/shared/notes/_form.html.haml' do
+            element :new_note_form, 'new-note'
+            element :new_note_form, 'attr: :note'
+          end
+
+          view 'app/views/shared/notes/_comment_button.html.haml' do
+            element :comment_button, '%strong Comment'
+          end
+
+          def issue_title
+            find('.issue-details .title').text
+          end
+
+          # Adds a comment to an issue
+          # attachment option should be an absolute path
+          def comment(text, attachment:)
+            fill_in(with: text, name: 'note[note]')
+
+            attach_file_to_dropzone(attachment, '.new-note') if attachment
+
+            click_on 'Comment'
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/qa/qa/page/project/show.rb b/qa/qa/page/project/show.rb
index 75308ae8a3c..553d35f9579 100644
--- a/qa/qa/page/project/show.rb
+++ b/qa/qa/page/project/show.rb
@@ -17,6 +17,11 @@ module QA
           element :project_name
         end
 
+        view 'app/views/layouts/header/_new_dropdown.haml' do
+          element :new_menu_toggle
+          element :new_issue_link, "link_to 'New issue', new_project_issue_path(@project)"
+        end
+
         def choose_repository_clone_http
           wait(reload: false) do
             click_element :clone_dropdown
@@ -46,6 +51,12 @@ module QA
           sleep 5
           refresh
         end
+
+        def go_to_new_issue
+          click_element :new_menu_toggle
+
+          click_link 'New issue'
+        end
       end
     end
   end
diff --git a/qa/spec/fixtures/banana_sample.gif b/qa/spec/fixtures/banana_sample.gif
new file mode 100644
index 00000000000..1322ac92d14
--- /dev/null
+++ b/qa/spec/fixtures/banana_sample.gif
diff --git a/scripts/static-analysis b/scripts/static-analysis
index 96d08287ded..bdb88f3cb57 100755
--- a/scripts/static-analysis
+++ b/scripts/static-analysis
@@ -1,6 +1,29 @@
 #!/usr/bin/env ruby
 
-require ::File.expand_path('../lib/gitlab/popen', __dir__)
+# We don't have auto-loading here
+require_relative '../lib/gitlab/popen'
+require_relative '../lib/gitlab/popen/runner'
+
+def emit_warnings(static_analysis)
+  static_analysis.warned_results.each do |result|
+    puts
+    puts "**** #{result.cmd.join(' ')} had the following warnings:"
+    puts
+    puts result.stderr
+    puts
+  end
+end
+
+def emit_errors(static_analysis)
+  static_analysis.failed_results.each do |result|
+    puts
+    puts "**** #{result.cmd.join(' ')} failed with the following error:"
+    puts
+    puts result.stdout
+    puts result.stderr
+    puts
+  end
+end
 
 tasks = [
   %w[bundle exec rake config_lint],
@@ -12,23 +35,20 @@ tasks = [
   %w[bundle exec rubocop --parallel],
   %w[bundle exec rake gettext:lint],
   %w[bundle exec rake lint:static_verification],
-  %w[scripts/lint-changelog-yaml],
   %w[scripts/lint-conflicts.sh],
   %w[scripts/lint-rugged]
 ]
 
-failed_tasks = tasks.reduce({}) do |failures, task|
-  start = Time.now
-  puts
-  puts "$ #{task.join(' ')}"
+static_analysis = Gitlab::Popen::Runner.new
 
-  output, status = Gitlab::Popen.popen(task)
-  puts "==> Finished in #{Time.now - start} seconds"
+static_analysis.run(tasks) do |cmd, &run|
   puts
+  puts "$ #{cmd.join(' ')}"
 
-  failures[task.join(' ')] = output unless status.zero?
+  result = run.call
 
-  failures
+  puts "==> Finished in #{result.duration} seconds"
+  puts
 end
 
 puts
@@ -36,17 +56,20 @@ puts '==================================================='
 puts
 puts
 
-if failed_tasks.empty?
+if static_analysis.all_success_and_clean?
   puts 'All static analyses passed successfully.'
+elsif static_analysis.all_success?
+  puts 'All static analyses passed successfully, but we have warnings:'
+  puts
+
+  emit_warnings(static_analysis)
+
+  exit 2
 else
   puts 'Some static analyses failed:'
 
-  failed_tasks.each do |failed_task, output|
-    puts
-    puts "**** #{failed_task} failed with the following error:"
-    puts
-    puts output
-  end
+  emit_warnings(static_analysis)
+  emit_errors(static_analysis)
 
   exit 1
 end
diff --git a/spec/features/expand_collapse_diffs_spec.rb b/spec/features/expand_collapse_diffs_spec.rb
index 1dd7547a7fc..31862b2e8f4 100644
--- a/spec/features/expand_collapse_diffs_spec.rb
+++ b/spec/features/expand_collapse_diffs_spec.rb
@@ -112,13 +112,6 @@ feature 'Expand and collapse diffs', :js do
         wait_for_requests
       end
 
-      it 'makes a request to get the content' do
-        ajax_uris = evaluate_script('ajaxUris')
-
-        expect(ajax_uris).not_to be_empty
-        expect(ajax_uris.first).to include('large_diff.md')
-      end
-
       it 'shows the diff content' do
         expect(large_diff).to have_selector('.code')
         expect(large_diff).not_to have_selector('.nothing-here-block')
diff --git a/spec/features/projects/blobs/edit_spec.rb b/spec/features/projects/blobs/edit_spec.rb
index 69e4c9f04a1..89d3bd24b89 100644
--- a/spec/features/projects/blobs/edit_spec.rb
+++ b/spec/features/projects/blobs/edit_spec.rb
@@ -17,12 +17,15 @@ feature 'Editing file blob', :js do
       sign_in(user)
     end
 
-    def edit_and_commit
+    def edit_and_commit(commit_changes: true)
       wait_for_requests
       find('.js-edit-blob').click
       find('#editor')
       execute_script('ace.edit("editor").setValue("class NextFeature\nend\n")')
-      click_button 'Commit changes'
+
+      if commit_changes
+        click_button 'Commit changes'
+      end
     end
 
     context 'from MR diff' do
@@ -39,13 +42,26 @@ feature 'Editing file blob', :js do
     context 'from blob file path' do
       before do
         visit project_blob_path(project, tree_join(branch, file_path))
-        edit_and_commit
       end
 
       it 'updates content' do
+        edit_and_commit
+
         expect(page).to have_content 'successfully committed'
         expect(page).to have_content 'NextFeature'
       end
+
+      it 'previews content' do
+        edit_and_commit(commit_changes: false)
+        click_link 'Preview changes'
+        wait_for_requests
+
+        old_line_count = page.all('.line_holder.old').size
+        new_line_count = page.all('.line_holder.new').size
+
+        expect(old_line_count).to be > 0
+        expect(new_line_count).to be > 0
+      end
     end
   end
 
diff --git a/spec/initializers/grape_route_helpers_fix_spec.rb b/spec/initializers/grape_route_helpers_fix_spec.rb
new file mode 100644
index 00000000000..2cf5924128f
--- /dev/null
+++ b/spec/initializers/grape_route_helpers_fix_spec.rb
@@ -0,0 +1,14 @@
+require 'spec_helper'
+require_relative '../../config/initializers/grape_route_helpers_fix'
+
+describe 'route shadowing' do
+  include GrapeRouteHelpers::NamedRouteMatcher
+
+  it 'does not occur' do
+    path = api_v4_projects_merge_requests_path(id: 1)
+    expect(path).to eq('/api/v4/projects/1/merge_requests')
+
+    path = api_v4_projects_merge_requests_path(id: 1, merge_request_iid: 3)
+    expect(path).to eq('/api/v4/projects/1/merge_requests/3')
+  end
+end
diff --git a/spec/javascripts/create_item_dropdown_spec.js b/spec/javascripts/create_item_dropdown_spec.js
index c8b00a4f553..143137c23ec 100644
--- a/spec/javascripts/create_item_dropdown_spec.js
+++ b/spec/javascripts/create_item_dropdown_spec.js
@@ -18,54 +18,67 @@ describe('CreateItemDropdown', () => {
   preloadFixtures('static/create_item_dropdown.html.raw');
 
   let $wrapperEl;
+  let createItemDropdown;
+
+  function createItemAndClearInput(text) {
+    // Filter for the new item
+    $wrapperEl.find('.dropdown-input-field')
+      .val(text)
+      .trigger('input');
+
+    // Create the new item
+    const $createButton = $wrapperEl.find('.js-dropdown-create-new-item');
+    $createButton.click();
+
+    // Clear out the filter
+    $wrapperEl.find('.dropdown-input-field')
+      .val('')
+      .trigger('input');
+  }
 
   beforeEach(() => {
     loadFixtures('static/create_item_dropdown.html.raw');
     $wrapperEl = $('.js-create-item-dropdown-fixture-root');
-
-    // eslint-disable-next-line no-new
-    new CreateItemDropdown({
-      $dropdown: $wrapperEl.find('.js-dropdown-menu-toggle'),
-      defaultToggleLabel: 'All variables',
-      fieldName: 'variable[environment]',
-      getData: (term, callback) => {
-        callback(DROPDOWN_ITEM_DATA);
-      },
-    });
   });
 
   afterEach(() => {
     $wrapperEl.remove();
   });
 
-  it('should have a dropdown item for each piece of data', () => {
-    // Get the data in the dropdown
-    $('.js-dropdown-menu-toggle').click();
+  describe('items', () => {
+    beforeEach(() => {
+      createItemDropdown = new CreateItemDropdown({
+        $dropdown: $wrapperEl.find('.js-dropdown-menu-toggle'),
+        defaultToggleLabel: 'All variables',
+        fieldName: 'variable[environment]',
+        getData: (term, callback) => {
+          callback(DROPDOWN_ITEM_DATA);
+        },
+      });
+    });
+
+    it('should have a dropdown item for each piece of data', () => {
+      // Get the data in the dropdown
+      $('.js-dropdown-menu-toggle').click();
 
-    const $itemEls = $wrapperEl.find('.js-dropdown-content a');
-    expect($itemEls.length).toEqual(DROPDOWN_ITEM_DATA.length);
+      const $itemEls = $wrapperEl.find('.js-dropdown-content a');
+      expect($itemEls.length).toEqual(DROPDOWN_ITEM_DATA.length);
+    });
   });
 
   describe('created items', () => {
     const NEW_ITEM_TEXT = 'foobarbaz';
 
-    function createItemAndClearInput(text) {
-      // Filter for the new item
-      $wrapperEl.find('.dropdown-input-field')
-        .val(text)
-        .trigger('input');
-
-      // Create the new item
-      const $createButton = $wrapperEl.find('.js-dropdown-create-new-item');
-      $createButton.click();
-
-      // Clear out the filter
-      $wrapperEl.find('.dropdown-input-field')
-        .val('')
-        .trigger('input');
-    }
-
     beforeEach(() => {
+      createItemDropdown = new CreateItemDropdown({
+        $dropdown: $wrapperEl.find('.js-dropdown-menu-toggle'),
+        defaultToggleLabel: 'All variables',
+        fieldName: 'variable[environment]',
+        getData: (term, callback) => {
+          callback(DROPDOWN_ITEM_DATA);
+        },
+      });
+
       // Open the dropdown
       $('.js-dropdown-menu-toggle').click();
 
@@ -103,4 +116,68 @@ describe('CreateItemDropdown', () => {
       expect($itemEls.length).toEqual(DROPDOWN_ITEM_DATA.length);
     });
   });
+
+  describe('clearDropdown()', () => {
+    beforeEach(() => {
+      createItemDropdown = new CreateItemDropdown({
+        $dropdown: $wrapperEl.find('.js-dropdown-menu-toggle'),
+        defaultToggleLabel: 'All variables',
+        fieldName: 'variable[environment]',
+        getData: (term, callback) => {
+          callback(DROPDOWN_ITEM_DATA);
+        },
+      });
+    });
+
+    it('should clear all data and filter input', () => {
+      const filterInput = $wrapperEl.find('.dropdown-input-field');
+
+      // Get the data in the dropdown
+      $('.js-dropdown-menu-toggle').click();
+
+      // Filter for an item
+      filterInput
+        .val('one')
+        .trigger('input');
+
+      const $itemElsAfterFilter = $wrapperEl.find('.js-dropdown-content a');
+      expect($itemElsAfterFilter.length).toEqual(1);
+
+      createItemDropdown.clearDropdown();
+
+      const $itemElsAfterClear = $wrapperEl.find('.js-dropdown-content a');
+      expect($itemElsAfterClear.length).toEqual(0);
+      expect(filterInput.val()).toEqual('');
+    });
+  });
+
+  describe('createNewItemFromValue option', () => {
+    beforeEach(() => {
+      createItemDropdown = new CreateItemDropdown({
+        $dropdown: $wrapperEl.find('.js-dropdown-menu-toggle'),
+        defaultToggleLabel: 'All variables',
+        fieldName: 'variable[environment]',
+        getData: (term, callback) => {
+          callback(DROPDOWN_ITEM_DATA);
+        },
+        createNewItemFromValue: newValue => ({
+          title: `${newValue}-title`,
+          id: `${newValue}-id`,
+          text: `${newValue}-text`,
+        }),
+      });
+    });
+
+    it('all items go through createNewItemFromValue', () => {
+      // Get the data in the dropdown
+      $('.js-dropdown-menu-toggle').click();
+
+      createItemAndClearInput('new-item');
+
+      const $itemEls = $wrapperEl.find('.js-dropdown-content a');
+      expect($itemEls.length).toEqual(1 + DROPDOWN_ITEM_DATA.length);
+      expect($($itemEls[3]).text()).toEqual('new-item-text');
+      expect($wrapperEl.find('.dropdown-toggle-text').text()).toEqual('new-item-title');
+    });
+  });
 });
diff --git a/spec/javascripts/integrations/integration_settings_form_spec.js b/spec/javascripts/integrations/integration_settings_form_spec.js
index 9033eb9ce02..d0fba908e34 100644
--- a/spec/javascripts/integrations/integration_settings_form_spec.js
+++ b/spec/javascripts/integrations/integration_settings_form_spec.js
@@ -1,3 +1,5 @@
+import MockAdaptor from 'axios-mock-adapter';
+import axios from '~/lib/utils/axios_utils';
 import IntegrationSettingsForm from '~/integrations/integration_settings_form';
 
 describe('IntegrationSettingsForm', () => {
@@ -109,91 +111,117 @@ describe('IntegrationSettingsForm', () => {
   describe('testSettings', () => {
     let integrationSettingsForm;
     let formData;
+    let mock;
 
     beforeEach(() => {
+      mock = new MockAdaptor(axios);
+
+      spyOn(axios, 'put').and.callThrough();
+
       integrationSettingsForm = new IntegrationSettingsForm('.js-integration-settings-form');
       formData = integrationSettingsForm.$form.serialize();
     });
 
-    it('should make an ajax request with provided `formData`', () => {
-      const deferred = $.Deferred();
-      spyOn($, 'ajax').and.returnValue(deferred.promise());
+    afterEach(() => {
+      mock.restore();
+    });
 
-      integrationSettingsForm.testSettings(formData);
+    it('should make an ajax request with provided `formData`', (done) => {
+      integrationSettingsForm.testSettings(formData)
+        .then(() => {
+          expect(axios.put).toHaveBeenCalledWith(integrationSettingsForm.testEndPoint, formData);
 
-      expect($.ajax).toHaveBeenCalledWith({
-        type: 'PUT',
-        url: integrationSettingsForm.testEndPoint,
-        data: formData,
-      });
+          done();
+        })
+        .catch(done.fail);
     });
 
-    it('should show error Flash with `Save anyway` action if ajax request responds with error in test', () => {
+    it('should show error Flash with `Save anyway` action if ajax request responds with error in test', (done) => {
       const errorMessage = 'Test failed.';
-      const deferred = $.Deferred();
-      spyOn($, 'ajax').and.returnValue(deferred.promise());
-
-      integrationSettingsForm.testSettings(formData);
+      mock.onPut(integrationSettingsForm.testEndPoint).reply(200, {
+        error: true,
+        message: errorMessage,
+        service_response: 'some error',
+      });
 
-      deferred.resolve({ error: true, message: errorMessage, service_response: 'some error' });
+      integrationSettingsForm.testSettings(formData)
+        .then(() => {
+          const $flashContainer = $('.flash-container');
+          expect($flashContainer.find('.flash-text').text().trim()).toEqual('Test failed. some error');
+          expect($flashContainer.find('.flash-action')).toBeDefined();
+          expect($flashContainer.find('.flash-action').text().trim()).toEqual('Save anyway');
 
-      const $flashContainer = $('.flash-container');
-      expect($flashContainer.find('.flash-text').text().trim()).toEqual('Test failed. some error');
-      expect($flashContainer.find('.flash-action')).toBeDefined();
-      expect($flashContainer.find('.flash-action').text().trim()).toEqual('Save anyway');
+          done();
+        })
+        .catch(done.fail);
     });
 
-    it('should submit form if ajax request responds without any error in test', () => {
-      const deferred = $.Deferred();
-      spyOn($, 'ajax').and.returnValue(deferred.promise());
+    it('should submit form if ajax request responds without any error in test', (done) => {
+      spyOn(integrationSettingsForm.$form, 'submit');
 
-      integrationSettingsForm.testSettings(formData);
+      mock.onPut(integrationSettingsForm.testEndPoint).reply(200, {
+        error: false,
+      });
 
-      spyOn(integrationSettingsForm.$form, 'submit');
-      deferred.resolve({ error: false });
+      integrationSettingsForm.testSettings(formData)
+        .then(() => {
+          expect(integrationSettingsForm.$form.submit).toHaveBeenCalled();
 
-      expect(integrationSettingsForm.$form.submit).toHaveBeenCalled();
+          done();
+        })
+        .catch(done.fail);
     });
 
-    it('should submit form when clicked on `Save anyway` action of error Flash', () => {
-      const errorMessage = 'Test failed.';
-      const deferred = $.Deferred();
-      spyOn($, 'ajax').and.returnValue(deferred.promise());
+    it('should submit form when clicked on `Save anyway` action of error Flash', (done) => {
+      spyOn(integrationSettingsForm.$form, 'submit');
 
-      integrationSettingsForm.testSettings(formData);
+      const errorMessage = 'Test failed.';
+      mock.onPut(integrationSettingsForm.testEndPoint).reply(200, {
+        error: true,
+        message: errorMessage,
+      });
 
-      deferred.resolve({ error: true, message: errorMessage });
+      integrationSettingsForm.testSettings(formData)
+        .then(() => {
+          const $flashAction = $('.flash-container .flash-action');
+          expect($flashAction).toBeDefined();
 
-      const $flashAction = $('.flash-container .flash-action');
-      expect($flashAction).toBeDefined();
+          $flashAction.get(0).click();
+        })
+        .then(() => {
+          expect(integrationSettingsForm.$form.submit).toHaveBeenCalled();
 
-      spyOn(integrationSettingsForm.$form, 'submit');
-      $flashAction.get(0).click();
-      expect(integrationSettingsForm.$form.submit).toHaveBeenCalled();
+          done();
+        })
+        .catch(done.fail);
     });
 
-    it('should show error Flash if ajax request failed', () => {
+    it('should show error Flash if ajax request failed', (done) => {
       const errorMessage = 'Something went wrong on our end.';
-      const deferred = $.Deferred();
-      spyOn($, 'ajax').and.returnValue(deferred.promise());
 
-      integrationSettingsForm.testSettings(formData);
+      mock.onPut(integrationSettingsForm.testEndPoint).networkError();
 
-      deferred.reject();
+      integrationSettingsForm.testSettings(formData)
+        .then(() => {
+          expect($('.flash-container .flash-text').text().trim()).toEqual(errorMessage);
 
-      expect($('.flash-container .flash-text').text().trim()).toEqual(errorMessage);
+          done();
+        })
+        .catch(done.fail);
     });
 
-    it('should always call `toggleSubmitBtnState` with `false` once request is completed', () => {
-      const deferred = $.Deferred();
-      spyOn($, 'ajax').and.returnValue(deferred.promise());
-
-      integrationSettingsForm.testSettings(formData);
+    it('should always call `toggleSubmitBtnState` with `false` once request is completed', (done) => {
+      mock.onPut(integrationSettingsForm.testEndPoint).networkError();
 
       spyOn(integrationSettingsForm, 'toggleSubmitBtnState');
-      deferred.reject();
 
-      expect(integrationSettingsForm.toggleSubmitBtnState).toHaveBeenCalledWith(false);
+      integrationSettingsForm.testSettings(formData)
+        .then(() => {
+          expect(integrationSettingsForm.toggleSubmitBtnState).toHaveBeenCalledWith(false);
+
+          done();
+        })
+        .catch(done.fail);
     });
   });
 });
diff --git a/spec/javascripts/issuable_spec.js b/spec/javascripts/issuable_spec.js
index 5a9112716f4..d53ffecbd35 100644
--- a/spec/javascripts/issuable_spec.js
+++ b/spec/javascripts/issuable_spec.js
@@ -1,3 +1,5 @@
+import MockAdaptor from 'axios-mock-adapter';
+import axios from '~/lib/utils/axios_utils';
 import IssuableIndex from '~/issuable_index';
 
 describe('Issuable', () => {
@@ -19,6 +21,8 @@ describe('Issuable', () => {
   });
 
   describe('resetIncomingEmailToken', () => {
+    let mock;
+
     beforeEach(() => {
       const element = document.createElement('a');
       element.classList.add('incoming-email-token-reset');
@@ -30,14 +34,28 @@ describe('Issuable', () => {
       document.body.appendChild(input);
 
       Issuable = new IssuableIndex('issue_');
+
+      mock = new MockAdaptor(axios);
+
+      mock.onPut('foo').reply(200, {
+        new_address: 'testing123',
+      });
     });
 
-    it('should send request to reset email token', () => {
-      spyOn(jQuery, 'ajax').and.callThrough();
+    afterEach(() => {
+      mock.restore();
+    });
+
+    it('should send request to reset email token', (done) => {
+      spyOn(axios, 'put').and.callThrough();
       document.querySelector('.incoming-email-token-reset').click();
 
-      expect(jQuery.ajax).toHaveBeenCalled();
-      expect(jQuery.ajax.calls.argsFor(0)[0].url).toEqual('foo');
+      setTimeout(() => {
+        expect(axios.put).toHaveBeenCalledWith('foo');
+        expect($('#issuable_email').val()).toBe('testing123');
+
+        done();
+      });
     });
   });
 });
diff --git a/spec/javascripts/vue_mr_widget/components/states/mr_widget_merged_spec.js b/spec/javascripts/vue_mr_widget/components/states/mr_widget_merged_spec.js
index 2dc3b72ea40..43a989393ba 100644
--- a/spec/javascripts/vue_mr_widget/components/states/mr_widget_merged_spec.js
+++ b/spec/javascripts/vue_mr_widget/components/states/mr_widget_merged_spec.js
@@ -1,108 +1,99 @@
 import Vue from 'vue';
-import mergedComponent from '~/vue_merge_request_widget/components/states/mr_widget_merged';
+import mergedComponent from '~/vue_merge_request_widget/components/states/mr_widget_merged.vue';
 import eventHub from '~/vue_merge_request_widget/event_hub';
-
-const targetBranch = 'foo';
-
-const createComponent = () => {
-  const Component = Vue.extend(mergedComponent);
-  const mr = {
-    isRemovingSourceBranch: false,
-    cherryPickInForkPath: false,
-    canCherryPickInCurrentMR: true,
-    revertInForkPath: false,
-    canRevertInCurrentMR: true,
-    canRemoveSourceBranch: true,
-    sourceBranchRemoved: true,
-    metrics: {
-      mergedBy: {},
-      mergedAt: 'mergedUpdatedAt',
-      readableMergedAt: '',
-      closedBy: {},
-      closedAt: 'mergedUpdatedAt',
-      readableClosedAt: '',
-    },
-    updatedAt: 'mrUpdatedAt',
-    targetBranch,
-  };
-
-  const service = {
-    removeSourceBranch() {},
-  };
-
-  return new Component({
-    el: document.createElement('div'),
-    propsData: { mr, service },
-  });
-};
+import mountComponent from '../../../helpers/vue_mount_component_helper';
 
 describe('MRWidgetMerged', () => {
-  describe('props', () => {
-    it('should have props', () => {
-      const { mr, service } = mergedComponent.props;
-
-      expect(mr.type instanceof Object).toBeTruthy();
-      expect(mr.required).toBeTruthy();
-
-      expect(service.type instanceof Object).toBeTruthy();
-      expect(service.required).toBeTruthy();
-    });
-  });
-
-  describe('components', () => {
-    it('should have components added', () => {
-      expect(mergedComponent.components['mr-widget-author-and-time']).toBeDefined();
-    });
+  let vm;
+  const targetBranch = 'foo';
+
+  beforeEach(() => {
+    const Component = Vue.extend(mergedComponent);
+    const mr = {
+      isRemovingSourceBranch: false,
+      cherryPickInForkPath: false,
+      canCherryPickInCurrentMR: true,
+      revertInForkPath: false,
+      canRevertInCurrentMR: true,
+      canRemoveSourceBranch: true,
+      sourceBranchRemoved: true,
+      metrics: {
+        mergedBy: {
+          name: 'Administrator',
+          username: 'root',
+          webUrl: 'http://localhost:3000/root',
+          avatarUrl: 'http://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80&d=identicon',
+        },
+        mergedAt: 'Jan 24, 2018 1:02pm GMT+0000',
+        readableMergedAt: '',
+        closedBy: {},
+        closedAt: 'Jan 24, 2018 1:02pm GMT+0000',
+        readableClosedAt: '',
+      },
+      updatedAt: 'mergedUpdatedAt',
+      targetBranch,
+    };
+
+    const service = {
+      removeSourceBranch() {},
+    };
+
+    spyOn(eventHub, '$emit');
+
+    vm = mountComponent(Component, { mr, service });
   });
 
-  describe('data', () => {
-    it('should have default data', () => {
-      const data = mergedComponent.data();
-
-      expect(data.isMakingRequest).toBeFalsy();
-    });
+  afterEach(() => {
+    vm.$destroy();
   });
 
   describe('computed', () => {
     describe('shouldShowRemoveSourceBranch', () => {
-      it('should correct value when fields changed', () => {
-        const vm = createComponent();
+      it('returns true when sourceBranchRemoved is false', () => {
         vm.mr.sourceBranchRemoved = false;
-        expect(vm.shouldShowRemoveSourceBranch).toBeTruthy();
+        expect(vm.shouldShowRemoveSourceBranch).toEqual(true);
+      });
 
+      it('returns false wehn sourceBranchRemoved is true', () => {
         vm.mr.sourceBranchRemoved = true;
-        expect(vm.shouldShowRemoveSourceBranch).toBeFalsy();
+        expect(vm.shouldShowRemoveSourceBranch).toEqual(false);
+      });
 
+      it('returns false when canRemoveSourceBranch is false', () => {
         vm.mr.sourceBranchRemoved = false;
         vm.mr.canRemoveSourceBranch = false;
-        expect(vm.shouldShowRemoveSourceBranch).toBeFalsy();
+        expect(vm.shouldShowRemoveSourceBranch).toEqual(false);
+      });
 
+      it('returns false when is making request', () => {
         vm.mr.canRemoveSourceBranch = true;
         vm.isMakingRequest = true;
-        expect(vm.shouldShowRemoveSourceBranch).toBeFalsy();
+        expect(vm.shouldShowRemoveSourceBranch).toEqual(false);
+      });
 
+      it('returns true when all are true', () => {
         vm.mr.isRemovingSourceBranch = true;
         vm.mr.canRemoveSourceBranch = true;
         vm.isMakingRequest = true;
-        expect(vm.shouldShowRemoveSourceBranch).toBeFalsy();
+        expect(vm.shouldShowRemoveSourceBranch).toEqual(false);
       });
     });
+
     describe('shouldShowSourceBranchRemoving', () => {
       it('should correct value when fields changed', () => {
-        const vm = createComponent();
         vm.mr.sourceBranchRemoved = false;
-        expect(vm.shouldShowSourceBranchRemoving).toBeFalsy();
+        expect(vm.shouldShowSourceBranchRemoving).toEqual(false);
 
         vm.mr.sourceBranchRemoved = true;
-        expect(vm.shouldShowRemoveSourceBranch).toBeFalsy();
+        expect(vm.shouldShowRemoveSourceBranch).toEqual(false);
 
         vm.mr.sourceBranchRemoved = false;
         vm.isMakingRequest = true;
-        expect(vm.shouldShowSourceBranchRemoving).toBeTruthy();
+        expect(vm.shouldShowSourceBranchRemoving).toEqual(true);
 
         vm.isMakingRequest = false;
         vm.mr.isRemovingSourceBranch = true;
-        expect(vm.shouldShowSourceBranchRemoving).toBeTruthy();
+        expect(vm.shouldShowSourceBranchRemoving).toEqual(true);
       });
     });
   });
@@ -110,8 +101,6 @@ describe('MRWidgetMerged', () => {
   describe('methods', () => {
     describe('removeSourceBranch', () => {
       it('should set flag and call service then request main component to update the widget', (done) => {
-        const vm = createComponent();
-        spyOn(eventHub, '$emit');
         spyOn(vm.service, 'removeSourceBranch').and.returnValue(new Promise((resolve) => {
           resolve({
             data: {
@@ -123,7 +112,7 @@ describe('MRWidgetMerged', () => {
         vm.removeSourceBranch();
         setTimeout(() => {
           const args = eventHub.$emit.calls.argsFor(0);
-          expect(vm.isMakingRequest).toBeTruthy();
+          expect(vm.isMakingRequest).toEqual(true);
           expect(args[0]).toEqual('MRWidgetUpdateRequested');
           expect(args[1]).not.toThrow();
           done();
@@ -132,53 +121,50 @@ describe('MRWidgetMerged', () => {
     });
   });
 
-  describe('template', () => {
-    let vm;
-    let el;
+  it('has merged by information', () => {
+    expect(vm.$el.textContent).toContain('Merged by');
+    expect(vm.$el.textContent).toContain('Administrator');
+  });
 
-    beforeEach(() => {
-      vm = createComponent();
-      el = vm.$el;
-    });
+  it('renders branch information', () => {
+    expect(vm.$el.textContent).toContain('The changes were merged into');
+    expect(vm.$el.textContent).toContain(targetBranch);
+  });
 
-    it('should have correct elements', () => {
-      expect(el.classList.contains('mr-widget-body')).toBeTruthy();
-      expect(el.querySelector('.js-mr-widget-author')).toBeDefined();
-      expect(el.innerText).toContain('The changes were merged into');
-      expect(el.innerText).toContain(targetBranch);
-      expect(el.innerText).toContain('The source branch has been removed');
-      expect(el.innerText).toContain('Revert');
-      expect(el.innerText).toContain('Cherry-pick');
-      expect(el.innerText).not.toContain('You can remove source branch now');
-      expect(el.innerText).not.toContain('The source branch is being removed');
-    });
+  it('renders information about branch being removed', () => {
+    expect(vm.$el.textContent).toContain('The source branch has been removed');
+  });
 
-    it('should not show source branch removed text', (done) => {
-      vm.mr.sourceBranchRemoved = false;
+  it('shows revert and cherry-pick buttons', () => {
+    expect(vm.$el.textContent).toContain('Revert');
+    expect(vm.$el.textContent).toContain('Cherry-pick');
+  });
 
-      Vue.nextTick(() => {
-        expect(el.innerText).toContain('You can remove source branch now');
-        expect(el.innerText).not.toContain('The source branch has been removed');
-        done();
-      });
+  it('should not show source branch removed text', (done) => {
+    vm.mr.sourceBranchRemoved = false;
+
+    Vue.nextTick(() => {
+      expect(vm.$el.innerText).toContain('You can remove source branch now');
+      expect(vm.$el.innerText).not.toContain('The source branch has been removed');
+      done();
     });
+  });
 
-    it('should show source branch removing text', (done) => {
-      vm.mr.isRemovingSourceBranch = true;
-      vm.mr.sourceBranchRemoved = false;
+  it('should show source branch removing text', (done) => {
+    vm.mr.isRemovingSourceBranch = true;
+    vm.mr.sourceBranchRemoved = false;
 
-      Vue.nextTick(() => {
-        expect(el.innerText).toContain('The source branch is being removed');
-        expect(el.innerText).not.toContain('You can remove source branch now');
-        expect(el.innerText).not.toContain('The source branch has been removed');
-        done();
-      });
+    Vue.nextTick(() => {
+      expect(vm.$el.innerText).toContain('The source branch is being removed');
+      expect(vm.$el.innerText).not.toContain('You can remove source branch now');
+      expect(vm.$el.innerText).not.toContain('The source branch has been removed');
+      done();
     });
+  });
 
-    it('should use mergedEvent updatedAt as tooltip title', () => {
-      expect(
-        el.querySelector('time').getAttribute('title'),
-      ).toBe('mergedUpdatedAt');
-    });
+  it('should use mergedEvent mergedAt as tooltip title', () => {
+    expect(
+      vm.$el.querySelector('time').getAttribute('title'),
+    ).toBe('Jan 24, 2018 1:02pm GMT+0000');
   });
 });
diff --git a/spec/lib/gitlab/popen/runner_spec.rb b/spec/lib/gitlab/popen/runner_spec.rb
new file mode 100644
index 00000000000..2e2cb4ca28f
--- /dev/null
+++ b/spec/lib/gitlab/popen/runner_spec.rb
@@ -0,0 +1,139 @@
+require 'spec_helper'
+
+describe Gitlab::Popen::Runner do
+  subject { described_class.new }
+
+  describe '#run' do
+    it 'runs the command and returns the result' do
+      run_command
+
+      expect(Gitlab::Popen).to have_received(:popen_with_detail)
+    end
+  end
+
+  describe '#all_success_and_clean?' do
+    it 'returns true when exit status is 0 and stderr is empty' do
+      run_command
+
+      expect(subject).to be_all_success_and_clean
+    end
+
+    it 'returns false when exit status is not 0' do
+      run_command(exitstatus: 1)
+
+      expect(subject).not_to be_all_success_and_clean
+    end
+
+    it 'returns false when exit stderr has something' do
+      run_command(stderr: 'stderr')
+
+      expect(subject).not_to be_all_success_and_clean
+    end
+  end
+
+  describe '#all_success?' do
+    it 'returns true when exit status is 0' do
+      run_command
+
+      expect(subject).to be_all_success
+    end
+
+    it 'returns false when exit status is not 0' do
+      run_command(exitstatus: 1)
+
+      expect(subject).not_to be_all_success
+    end
+
+    it 'returns true' do
+      run_command(stderr: 'stderr')
+
+      expect(subject).to be_all_success
+    end
+  end
+
+  describe '#all_stderr_empty?' do
+    it 'returns true when stderr is empty' do
+      run_command
+
+      expect(subject).to be_all_stderr_empty
+    end
+
+    it 'returns true when exit status is not 0' do
+      run_command(exitstatus: 1)
+
+      expect(subject).to be_all_stderr_empty
+    end
+
+    it 'returns false when exit stderr has something' do
+      run_command(stderr: 'stderr')
+
+      expect(subject).not_to be_all_stderr_empty
+    end
+  end
+
+  describe '#failed_results' do
+    it 'returns [] when everything is passed' do
+      run_command
+
+      expect(subject.failed_results).to be_empty
+    end
+
+    it 'returns the result when exit status is not 0' do
+      result = run_command(exitstatus: 1)
+
+      expect(subject.failed_results).to contain_exactly(result)
+    end
+
+    it 'returns [] when exit stderr has something' do
+      run_command(stderr: 'stderr')
+
+      expect(subject.failed_results).to be_empty
+    end
+  end
+
+  describe '#warned_results' do
+    it 'returns [] when everything is passed' do
+      run_command
+
+      expect(subject.warned_results).to be_empty
+    end
+
+    it 'returns [] when exit status is not 0' do
+      run_command(exitstatus: 1)
+
+      expect(subject.warned_results).to be_empty
+    end
+
+    it 'returns the result when exit stderr has something' do
+      result = run_command(stderr: 'stderr')
+
+      expect(subject.warned_results).to contain_exactly(result)
+    end
+  end
+
+  def run_command(
+    command: 'command',
+    stdout: 'stdout',
+    stderr: '',
+    exitstatus: 0,
+    status: double(exitstatus: exitstatus, success?: exitstatus.zero?),
+    duration: 0.1)
+
+    result =
+      Gitlab::Popen::Result.new(command, stdout, stderr, status, duration)
+
+    allow(Gitlab::Popen)
+      .to receive(:popen_with_detail)
+      .and_return(result)
+
+    subject.run([command]) do |cmd, &run|
+      expect(cmd).to eq(command)
+
+      cmd_result = run.call
+
+      expect(cmd_result).to eq(result)
+    end
+
+    subject.results.first
+  end
+end
diff --git a/spec/lib/gitlab/popen_spec.rb b/spec/lib/gitlab/popen_spec.rb
index b145ca36f26..1dbead16d5b 100644
--- a/spec/lib/gitlab/popen_spec.rb
+++ b/spec/lib/gitlab/popen_spec.rb
@@ -1,11 +1,23 @@
 require 'spec_helper'
 
-describe 'Gitlab::Popen' do
+describe Gitlab::Popen do
   let(:path) { Rails.root.join('tmp').to_s }
 
   before do
     @klass = Class.new(Object)
-    @klass.send(:include, Gitlab::Popen)
+    @klass.send(:include, described_class)
+  end
+
+  describe '.popen_with_detail' do
+    subject { @klass.new.popen_with_detail(cmd) }
+
+    let(:cmd) { %W[#{Gem.ruby} -e $stdout.puts(1);$stderr.puts(2);exit(3)] }
+
+    it { expect(subject.cmd).to eq(cmd) }
+    it { expect(subject.stdout).to eq("1\n") }
+    it { expect(subject.stderr).to eq("2\n") }
+    it { expect(subject.status.exitstatus).to eq(3) }
+    it { expect(subject.duration).to be_kind_of(Numeric) }
   end
 
   context 'zero status' do
diff --git a/spec/models/ci/build_spec.rb b/spec/models/ci/build_spec.rb
index 45a606c1ea8..f5b3b4a9fc5 100644
--- a/spec/models/ci/build_spec.rb
+++ b/spec/models/ci/build_spec.rb
@@ -277,7 +277,7 @@ describe Ci::Build do
           allow_any_instance_of(Project).to receive(:jobs_cache_index).and_return(1)
         end
 
-        it { is_expected.to be_an(Array).and all(include(key: "key:1")) }
+        it { is_expected.to be_an(Array).and all(include(key: "key_1")) }
       end
 
       context 'when project does not have jobs_cache_index' do
diff --git a/spec/models/commit_spec.rb b/spec/models/commit_spec.rb
index f8a98b43e46..959383ff0b7 100644
--- a/spec/models/commit_spec.rb
+++ b/spec/models/commit_spec.rb
@@ -228,7 +228,7 @@ eos
     it { expect(data).to be_a(Hash) }
     it { expect(data[:message]).to include('adds bar folder and branch-test text file to check Repository merged_to_root_ref method') }
     it { expect(data[:timestamp]).to eq('2016-09-27T14:37:46Z') }
-    it { expect(data[:added]).to eq(["bar/branch-test.txt"]) }
+    it { expect(data[:added]).to contain_exactly("bar/branch-test.txt") }
     it { expect(data[:modified]).to eq([]) }
     it { expect(data[:removed]).to eq([]) }
   end
@@ -532,8 +532,8 @@ eos
     let(:commit2) { merge_request1.merge_request_diff.commits.first }
 
     it 'returns merge_requests that introduced that commit' do
-      expect(commit1.merge_requests).to eq([merge_request1, merge_request2])
-      expect(commit2.merge_requests).to eq([merge_request1])
+      expect(commit1.merge_requests).to contain_exactly(merge_request1, merge_request2)
+      expect(commit2.merge_requests).to contain_exactly(merge_request1)
     end
   end
 end
diff --git a/spec/models/merge_request_spec.rb b/spec/models/merge_request_spec.rb
index 15f9c68e400..eb9690df313 100644
--- a/spec/models/merge_request_spec.rb
+++ b/spec/models/merge_request_spec.rb
@@ -1539,7 +1539,7 @@ describe MergeRequest do
       expect { subject.reload_diff }.to change { subject.merge_request_diffs.count }.by(1)
     end
 
-    it "executs diff cache service" do
+    it "executes diff cache service" do
       expect_any_instance_of(MergeRequests::MergeRequestDiffCacheService).to receive(:execute).with(subject)
 
       subject.reload_diff
diff --git a/spec/models/project_services/jira_service_spec.rb b/spec/models/project_services/jira_service_spec.rb
index c9b3c6cf602..1eaaadf56c5 100644
--- a/spec/models/project_services/jira_service_spec.rb
+++ b/spec/models/project_services/jira_service_spec.rb
@@ -3,6 +3,29 @@ require 'spec_helper'
 describe JiraService do
   include Gitlab::Routing
 
+  describe '#options' do
+    let(:service) do
+      described_class.new(
+        project: build_stubbed(:project),
+        active: true,
+        username: 'username',
+        password: 'test',
+        jira_issue_transition_id: 24,
+        url: 'http://jira.test.com/path/'
+      )
+    end
+
+    it 'sets the URL properly' do
+      # jira-ruby gem parses the URI and handles trailing slashes
+      # fine: https://github.com/sumoheavy/jira-ruby/blob/v1.4.1/lib/jira/http_client.rb#L59
+      expect(service.options[:site]).to eq('http://jira.test.com/')
+    end
+
+    it 'leaves out trailing slashes in context' do
+      expect(service.options[:context_path]).to eq('/path')
+    end
+  end
+
   describe "Associations" do
     it { is_expected.to belong_to :project }
     it { is_expected.to have_one :service_hook }
diff --git a/spec/requests/api/merge_requests_spec.rb b/spec/requests/api/merge_requests_spec.rb
index 8e2982f1a5d..14dd9da119d 100644
--- a/spec/requests/api/merge_requests_spec.rb
+++ b/spec/requests/api/merge_requests_spec.rb
@@ -198,6 +198,8 @@ describe API::MergeRequests do
 
         create(:merge_request, state: 'closed', milestone: milestone1, author: user, assignee: user, source_project: project, target_project: project, title: "Test", created_at: base_time)
 
+        create(:merge_request, milestone: milestone1, author: user, assignee: user, source_project: project, target_project: project, title: "Test", created_at: base_time)
+
         expect do
           get api("/projects/#{project.id}/merge_requests", user)
         end.not_to exceed_query_limit(control)
diff --git a/spec/services/merge_requests/refresh_service_spec.rb b/spec/services/merge_requests/refresh_service_spec.rb
index 7a01d3dd698..7c3374c6113 100644
--- a/spec/services/merge_requests/refresh_service_spec.rb
+++ b/spec/services/merge_requests/refresh_service_spec.rb
@@ -55,11 +55,12 @@ describe MergeRequests::RefreshService do
 
       before do
         allow(refresh_service).to receive(:execute_hooks)
-        refresh_service.execute(@oldrev, @newrev, 'refs/heads/master')
-        reload_mrs
       end
 
       it 'executes hooks with update action' do
+        refresh_service.execute(@oldrev, @newrev, 'refs/heads/master')
+        reload_mrs
+
         expect(refresh_service).to have_received(:execute_hooks)
           .with(@merge_request, 'update', old_rev: @oldrev)
 
@@ -72,6 +73,26 @@ describe MergeRequests::RefreshService do
         expect(@build_failed_todo).to be_done
         expect(@fork_build_failed_todo).to be_done
       end
+
+      context 'when source branch ref does not exists' do
+        before do
+          DeleteBranchService.new(@project, @user).execute(@merge_request.source_branch)
+        end
+
+        it 'closes MRs without source branch ref' do
+          expect { refresh_service.execute(@oldrev, @newrev, 'refs/heads/master') }
+            .to change { @merge_request.reload.state }
+            .from('opened')
+            .to('closed')
+
+          expect(@fork_merge_request.reload).to be_open
+        end
+
+        it 'does not change the merge request diff' do
+          expect { refresh_service.execute(@oldrev, @newrev, 'refs/heads/master') }
+            .not_to change { @merge_request.reload.merge_request_diff }
+        end
+      end
     end
 
     context 'when pipeline exists for the source branch' do
diff --git a/spec/support/javascript_fixtures_helpers.rb b/spec/support/javascript_fixtures_helpers.rb
index 923c8080e6c..2197bc9d853 100644
--- a/spec/support/javascript_fixtures_helpers.rb
+++ b/spec/support/javascript_fixtures_helpers.rb
@@ -1,6 +1,5 @@
 require 'action_dispatch/testing/test_request'
 require 'fileutils'
-require 'gitlab/popen'
 
 module JavaScriptFixturesHelpers
   include Gitlab::Popen
diff --git a/spec/tasks/gitlab/task_helpers_spec.rb b/spec/tasks/gitlab/task_helpers_spec.rb
index fae5ec35c47..e9322ec4931 100644
--- a/spec/tasks/gitlab/task_helpers_spec.rb
+++ b/spec/tasks/gitlab/task_helpers_spec.rb
@@ -1,5 +1,4 @@
 require 'spec_helper'
-require 'tasks/gitlab/task_helpers'
 
 class TestHelpersTest
   include Gitlab::TaskHelpers