Merge branch 'ce-to-ee-2018-12-07' into 'master'

CE upstream - 2018-12-07 20:59 UTC

Closes gitlab-ce#54862 and gitlab-runner#3807

See merge request gitlab-org/gitlab-ee!8762

app/assets/javascripts/clusters/components/applications.vue

@@ -84,6 +84,9 @@ export default {
     ingressExternalIp() {
       return this.applications.ingress.externalIp;
     },
+    certManagerInstalled() {
+      return this.applications.cert_manager.status === APPLICATION_STATUS.INSTALLED;
+    },
     ingressDescription() {
       const extraCostParagraph = sprintf(
         _.escape(
@@ -130,9 +133,9 @@ export default {
       return sprintf(
         _.escape(
           s__(
-            `ClusterIntegration|cert-manager is a native Kubernetes certificate management controller that helps with issuing certificates.
-            Installing cert-manager on your cluster will issue a certificate by %{letsEncrypt} and ensure that certificates
-            are valid and up to date.`,
+            `ClusterIntegration|Cert-Manager is a native Kubernetes certificate management controller that helps with issuing certificates.
+            Installing Cert-Manager on your cluster will issue a certificate by %{letsEncrypt} and ensure that certificates
+            are valid and up-to-date.`,
           ),
         ),
         {
@@ -259,6 +262,16 @@ export default {
                 </span>
               </div>
               <input v-else type="text" class="form-control js-ip-address" readonly value="?" />
+              <p class="form-text text-muted">
+                {{
+                  s__(`ClusterIntegration|Point a wildcard DNS to this
+                generated IP address in order to access
+                your application after it has been deployed.`)
+                }}
+                <a :href="ingressDnsHelpPath" target="_blank" rel="noopener noreferrer">
+                  {{ __('More information') }}
+                </a>
+              </p>
             </div>
 
             <p v-if="!ingressExternalIp" class="settings-message js-no-ip-message">
@@ -272,17 +285,6 @@ export default {
                 {{ __('More information') }}
               </a>
             </p>
-
-            <p>
-              {{
-                s__(`ClusterIntegration|Point a wildcard DNS to this
-              generated IP address in order to access
-              your application after it has been deployed.`)
-              }}
-              <a :href="ingressDnsHelpPath" target="_blank" rel="noopener noreferrer">
-                {{ __('More information') }}
-              </a>
-            </p>
           </template>
           <div v-html="ingressDescription"></div>
         </div>
@@ -295,10 +297,41 @@ export default {
         :status-reason="applications.cert_manager.statusReason"
         :request-status="applications.cert_manager.requestStatus"
         :request-reason="applications.cert_manager.requestReason"
+        :install-application-request-params="{ email: applications.cert_manager.email }"
         :disabled="!helmInstalled"
         title-link="https://cert-manager.readthedocs.io/en/latest/#"
       >
-        <div slot="description" v-html="certManagerDescription"></div>
+        <template>
+          <div slot="description">
+            <p v-html="certManagerDescription"></p>
+            <div class="form-group">
+              <label for="cert-manager-issuer-email">
+                {{ s__('ClusterIntegration|Issuer Email') }}
+              </label>
+              <div class="input-group">
+                <input
+                  v-model="applications.cert_manager.email"
+                  :readonly="certManagerInstalled"
+                  type="text"
+                  class="form-control js-email"
+                />
+              </div>
+              <p class="form-text text-muted">
+                {{
+                  s__(`ClusterIntegration|Issuers represent a certificate authority.
+                  You must provide an email address for your Issuer. `)
+                }}
+                <a
+                  href="http://docs.cert-manager.io/en/latest/reference/issuers.html?highlight=email"
+                  target="_blank"
+                  rel="noopener noreferrer"
+                >
+                  {{ __('More information') }}
+                </a>
+              </p>
+            </div>
+          </div>
+        </template>
       </application-row>
       <application-row
         v-if="isProjectCluster"
@@ -381,16 +414,17 @@ export default {
                   />
                 </span>
               </div>
+
+              <p v-if="ingressInstalled" class="form-text text-muted">
+                {{
+                  s__(`ClusterIntegration|Replace this with your own hostname if you want.
+                If you do so, point hostname to Ingress IP Address from above.`)
+                }}
+                <a :href="ingressDnsHelpPath" target="_blank" rel="noopener noreferrer">
+                  {{ __('More information') }}
+                </a>
+              </p>
             </div>
-            <p v-if="ingressInstalled">
-              {{
-                s__(`ClusterIntegration|Replace this with your own hostname if you want.
-              If you do so, point hostname to Ingress IP Address from above.`)
-              }}
-              <a :href="ingressDnsHelpPath" target="_blank" rel="noopener noreferrer">
-                {{ __('More information') }}
-              </a>
-            </p>
           </template>
         </div>
       </application-row>

app/assets/javascripts/clusters/constants.js

@@ -24,3 +24,4 @@ export const REQUEST_FAILURE = 'request-failure';
 export const INGRESS = 'ingress';
 export const JUPYTER = 'jupyter';
 export const KNATIVE = 'knative';
+export const CERT_MANAGER = 'cert_manager';

app/assets/javascripts/clusters/stores/clusters_store.js

 import { s__ } from '../../locale';
-import { INGRESS, JUPYTER, KNATIVE } from '../constants';
+import { INGRESS, JUPYTER, KNATIVE, CERT_MANAGER } from '../constants';
 
 export default class ClusterStore {
   constructor() {
@@ -30,6 +30,7 @@ export default class ClusterStore {
           statusReason: null,
           requestStatus: null,
           requestReason: null,
+          email: null,
         },
         runner: {
           title: s__('ClusterIntegration|GitLab Runner'),
@@ -103,6 +104,9 @@ export default class ClusterStore {
 
       if (appId === INGRESS) {
         this.state.applications.ingress.externalIp = serverAppEntry.external_ip;
+      } else if (appId === CERT_MANAGER) {
+        this.state.applications.cert_manager.email =
+          this.state.applications.cert_manager.email || serverAppEntry.email;
       } else if (appId === JUPYTER) {
         this.state.applications.jupyter.hostname =
           serverAppEntry.hostname ||

app/assets/javascripts/diffs/store/actions.js

@@ -218,8 +218,9 @@ export const toggleFileDiscussions = ({ getters, dispatch }, diff) => {
   });
 };
 
-export const saveDiffDiscussion = ({ dispatch }, { note, formData }) => {
+export const saveDiffDiscussion = ({ state, dispatch }, { note, formData }) => {
   const postData = getNoteFormData({
+    commit: state.commit,
     note,
     ...formData,
   });

app/assets/javascripts/diffs/store/utils.js

@@ -27,6 +27,7 @@ export const getReversePosition = linePosition => {
 
 export function getFormData(params) {
   const {
+    commit,
     note,
     noteableType,
     noteableData,
@@ -66,7 +67,7 @@ export function getFormData(params) {
       position,
       noteable_type: noteableType,
       noteable_id: noteableData.id,
-      commit_id: '',
+      commit_id: commit && commit.id,
       type:
         diffFile.diff_refs.start_sha && diffFile.diff_refs.head_sha
           ? DIFF_NOTE_TYPE

app/assets/javascripts/jobs/components/trigger_block.vue

 <script>
+import { __ } from '~/locale';
 import { GlButton } from '@gitlab/ui';
 
+const HIDDEN_VALUE = '••••••';
+
 export default {
   components: {
     GlButton,
@@ -13,17 +16,26 @@ export default {
   },
   data() {
     return {
-      areVariablesVisible: false,
+      showVariableValues: false,
     };
   },
   computed: {
     hasVariables() {
       return this.trigger.variables && this.trigger.variables.length > 0;
     },
+    getToggleButtonText() {
+      return this.showVariableValues ? __('Hide values') : __('Reveal values');
+    },
+    hasValues() {
+      return this.trigger.variables.some(v => v.value);
+    },
   },
   methods: {
-    revealVariables() {
-      this.areVariablesVisible = true;
+    toggleValues() {
+      this.showVariableValues = !this.showVariableValues;
+    },
+    getDisplayValue(value) {
+      return this.showVariableValues ? value : HIDDEN_VALUE;
     },
   },
 };
@@ -33,31 +45,33 @@ export default {
   <div class="build-widget block">
     <h4 class="title">{{ __('Trigger') }}</h4>
 
-    <p v-if="trigger.short_token" class="js-short-token">
+    <p
+      v-if="trigger.short_token"
+      class="js-short-token"
+      :class="{ 'append-bottom-0': !hasVariables }"
+    >
       <span class="build-light-text"> {{ __('Token') }} </span> {{ trigger.short_token }}
     </p>
 
-    <p v-if="hasVariables">
-      <gl-button
-        v-if="!areVariablesVisible"
-        type="button"
-        class="btn btn-default group js-reveal-variables"
-        @click="revealVariables"
-      >
-        {{ __('Reveal Variables') }}
-      </gl-button>
-    </p>
+    <template v-if="hasVariables">
+      <p class="trigger-variables-btn-container">
+        <span class="build-light-text"> {{ __('Variables:') }} </span>
 
-    <dl v-if="areVariablesVisible" class="js-build-variables trigger-build-variables">
-      <template v-for="variable in trigger.variables">
-        <dt :key="`${variable.key}-variable`" class="js-build-variable trigger-build-variable">
-          {{ variable.key }}
-        </dt>
+        <gl-button v-if="hasValues" class="group js-reveal-variables" @click="toggleValues">
+          {{ getToggleButtonText }}
+        </gl-button>
+      </p>
 
-        <dd :key="`${variable.key}-value`" class="js-build-value trigger-build-value">
-          {{ variable.value }}
-        </dd>
-      </template>
-    </dl>
+      <table class="js-build-variables trigger-build-variables">
+        <tr v-for="(variable, index) in trigger.variables" :key="`${variable.key}-${index}`">
+          <td class="js-build-variable trigger-build-variable trigger-variables-table-cell">
+            {{ variable.key }}
+          </td>
+          <td class="js-build-value trigger-build-value trigger-variables-table-cell">
+            {{ getDisplayValue(variable.value) }}
+          </td>
+        </tr>
+      </table>
+    </template>
   </div>
 </template>

app/assets/javascripts/milestone_select.js

@@ -155,7 +155,7 @@ export default class MilestoneSelect {
           const { $el, e } = clickEvent;
           let selected = clickEvent.selectedObj;
 
-          let data, boardsStore;
+          let data, modalStoreFilter;
           if (!selected) return;
 
           if (options.handleClick) {
@@ -179,11 +179,11 @@ export default class MilestoneSelect {
           }
 
           if ($dropdown.closest('.add-issues-modal').length) {
-            boardsStore = ModalStore.store.filter;
+            modalStoreFilter = ModalStore.store.filter;
           }
 
-          if (boardsStore) {
-            boardsStore[$dropdown.data('fieldName')] = selected.name;
+          if (modalStoreFilter) {
+            modalStoreFilter[$dropdown.data('fieldName')] = selected.name;
             e.preventDefault();
           } else if ($dropdown.hasClass('js-filter-submit') && (isIssueIndex || isMRIndex)) {
             return Issuable.filterResults($dropdown.closest('form'));

app/assets/javascripts/notes/components/comment_form.vue

@@ -247,15 +247,19 @@ Please check your network connection and try again.`;
       } else {
         this.reopenIssue()
           .then(() => this.enableButton())
-          .catch(() => {
+          .catch(({ data }) => {
             this.enableButton();
             this.toggleStateButtonLoading(false);
-            Flash(
-              sprintf(
-                __('Something went wrong while reopening the %{issuable}. Please try again later'),
-                { issuable: this.noteableDisplayName },
-              ),
+            let errorMessage = sprintf(
+              __('Something went wrong while reopening the %{issuable}. Please try again later'),
+              { issuable: this.noteableDisplayName },
             );
+
+            if (data) {
+              errorMessage = Object.values(data).join('\n');
+            }
+
+            Flash(errorMessage);
           });
       }
     },

app/assets/javascripts/vue_shared/components/sidebar/labels_select/dropdown_value_collapsed.vue

@@ -46,6 +46,7 @@ export default {
     class="sidebar-collapsed-icon"
     data-placement="left"
     data-container="body"
+    data-boundary="viewport"
     @click="handleClick"
   >
     <i aria-hidden="true" data-hidden="true" class="fa fa-tags"> </i>

app/assets/stylesheets/framework/header.scss

@@ -383,6 +383,16 @@
       top: 1px;
     }
   }
+
+  .dropdown-menu li a .identicon {
+    width: 17px;
+    height: 17px;
+    font-size: $gl-font-size-xs;
+    vertical-align: middle;
+    text-indent: 0;
+    line-height: $gl-font-size-xs + 2px;
+    display: inline-block;
+  }
 }
 
 .breadcrumbs-list {

app/assets/stylesheets/pages/builds.scss

@@ -221,9 +221,16 @@
     padding: 16px 0;
   }
 
+  .trigger-variables-btn-container {
+    @extend .d-flex;
+    justify-content: space-between;
+    align-items: center;
+  }
+
   .trigger-build-variables {
     margin: 0;
     overflow-x: auto;
+    width: 100%;
     -ms-overflow-style: scrollbar;
     -webkit-overflow-scrolling: touch;
   }
@@ -236,7 +243,15 @@
   .trigger-build-value {
     padding: 2px 4px;
     color: $black;
-    background-color: $white-light;
+  }
+
+  .trigger-variables-table-cell {
+    font-size: $gl-font-size-small;
+    line-height: $gl-line-height;
+    border: 1px solid $theme-gray-200;
+    padding: $gl-padding-4 6px;
+    width: 50%;
+    vertical-align: top;
   }
 
   .badge.badge-pill {

app/controllers/application_controller.rb

@@ -8,7 +8,6 @@ class ApplicationController < ActionController::Base
   include GitlabRoutingHelper
   include PageLayoutHelper
   include SafeParamsHelper
-  include SentryHelper
   include WorkhorseHelper
   include EnforcesTwoFactorAuthentication
   include WithPerformanceBar
@@ -129,6 +128,7 @@ class ApplicationController < ActionController::Base
 
     payload[:ua] = request.env["HTTP_USER_AGENT"]
     payload[:remote_ip] = request.remote_ip
+    payload[Gitlab::CorrelationId::LOG_KEY] = Gitlab::CorrelationId.current_id
 
     logged_user = auth_user
 
@@ -159,7 +159,7 @@ class ApplicationController < ActionController::Base
   end
 
   def log_exception(exception)
-    Raven.capture_exception(exception) if sentry_enabled?
+    Gitlab::Sentry.track_acceptable_exception(exception)
 
     backtrace_cleaner = Gitlab.rails5? ? request.env["action_dispatch.backtrace_cleaner"] : env
     application_trace = ActionDispatch::ExceptionWrapper.new(backtrace_cleaner, exception).application_trace
@@ -495,4 +495,8 @@ class ApplicationController < ActionController::Base
   def impersonator
     @impersonator ||= User.find(session[:impersonator_id]) if session[:impersonator_id]
   end
+
+  def sentry_context
+    Gitlab::Sentry.context(current_user)
+  end
 end

app/controllers/clusters/applications_controller.rb

@@ -23,6 +23,6 @@ class Clusters::ApplicationsController < Clusters::BaseController
   end
 
   def create_cluster_application_params
-    params.permit(:application, :hostname)
+    params.permit(:application, :hostname, :email)
   end
 end

app/controllers/concerns/issuable_collections.rb

@@ -102,7 +102,7 @@ module IssuableCollections
     elsif @group
       options[:group_id] = @group.id
       options[:include_subgroups] = true
-      options[:use_cte_for_search] = true
+      options[:attempt_group_search_optimizations] = true
     end
 
     params.permit(finder_type.valid_params).merge(options)

app/controllers/projects/merge_requests_controller.rb

@@ -124,17 +124,21 @@ class Projects::MergeRequestsController < Projects::MergeRequests::ApplicationCo
 
     respond_to do |format|
       format.html do
-        if @merge_request.valid?
-          redirect_to([@merge_request.target_project.namespace.becomes(Namespace), @merge_request.target_project, @merge_request])
-        else
+        if @merge_request.errors.present?
           define_edit_vars
 
           render :edit
+        else
+          redirect_to project_merge_request_path(@merge_request.target_project, @merge_request)
         end
       end
 
       format.json do
-        render json: serializer.represent(@merge_request, serializer: 'basic')
+        if merge_request.errors.present?
+          render json: @merge_request.errors, status: :bad_request
+        else
+          render json: serializer.represent(@merge_request, serializer: 'basic')
+        end
       end
     end
   rescue ActiveRecord::StaleObjectError

app/finders/issuable_finder.rb

@@ -27,12 +27,13 @@
 #     created_before: datetime
 #     updated_after: datetime
 #     updated_before: datetime
-#     use_cte_for_search: boolean
+#     attempt_group_search_optimizations: boolean
 #
 class IssuableFinder
   prepend FinderWithCrossProjectAccess
   include FinderMethods
   include CreatedAtFilter
+  include Gitlab::Utils::StrongMemoize
 
   requires_cross_project_access unless: -> { project? }
 
@@ -75,8 +76,9 @@ class IssuableFinder
     items = init_collection
     items = filter_items(items)
 
-    # This has to be last as we may use a CTE as an optimization fence by
-    # passing the use_cte_for_search param
+    # This has to be last as we may use a CTE as an optimization fence
+    # by passing the attempt_group_search_optimizations param and
+    # enabling the use_cte_for_group_issues_search feature flag
     # https://www.postgresql.org/docs/current/static/queries-with.html
     items = by_search(items)
 
@@ -85,6 +87,8 @@ class IssuableFinder
 
   def filter_items(items)
     items = by_project(items)
+    items = by_group(items)
+    items = by_subquery(items)
     items = by_scope(items)
     items = by_created_at(items)
     items = by_updated_at(items)
@@ -282,12 +286,31 @@ class IssuableFinder
   end
   # rubocop: enable CodeReuse/ActiveRecord
 
+  def use_subquery_for_search?
+    strong_memoize(:use_subquery_for_search) do
+      attempt_group_search_optimizations? &&
+        Feature.enabled?(:use_subquery_for_group_issues_search, default_enabled: false)
+    end
+  end
+
+  def use_cte_for_search?
+    strong_memoize(:use_cte_for_search) do
+      attempt_group_search_optimizations? &&
+        !use_subquery_for_search? &&
+        Feature.enabled?(:use_cte_for_group_issues_search, default_enabled: true)
+    end
+  end
+
   private
 
   def init_collection
     klass.all
   end
 
+  def attempt_group_search_optimizations?
+    search && Gitlab::Database.postgresql? && params[:attempt_group_search_optimizations]
+  end
+
   def count_key(value)
     Array(value).last.to_sym
   end
@@ -351,12 +374,13 @@ class IssuableFinder
   end
   # rubocop: enable CodeReuse/ActiveRecord
 
-  def use_cte_for_search?
-    return false unless search
-    return false unless Gitlab::Database.postgresql?
-    return false unless Feature.enabled?(:use_cte_for_group_issues_search, default_enabled: true)
-
-    params[:use_cte_for_search]
+  # Wrap projects and groups in a subquery if the conditions are met.
+  def by_subquery(items)
+    if use_subquery_for_search?
+      klass.where(id: items.select(:id)) # rubocop: disable CodeReuse/ActiveRecord
+    else
+      items
+    end
   end
 
   # rubocop: disable CodeReuse/ActiveRecord

app/helpers/icons_helper.rb

@@ -42,7 +42,7 @@ module IconsHelper
   end
 
   def sprite_icon(icon_name, size: nil, css_class: nil)
-    if Gitlab::Sentry.should_raise?
+    if Gitlab::Sentry.should_raise_for_dev?
       unless known_sprites.include?(icon_name)
         exception = ArgumentError.new("#{icon_name} is not a known icon in @gitlab-org/gitlab-svg")
         raise exception

app/helpers/sentry_helper.rb

-# frozen_string_literal: true
-
-module SentryHelper
-  def sentry_enabled?
-    Gitlab::Sentry.enabled?
-  end
-
-  def sentry_context
-    Gitlab::Sentry.context(current_user)
-  end
-end

app/models/clusters/applications/cert_manager.rb

@@ -14,6 +14,10 @@ module Clusters
 
       default_value_for :version, VERSION
 
+      default_value_for :email do |cert_manager|
+        cert_manager.cluster&.user&.email
+      end
+
       validates :email, presence: true
 
       def chart

app/models/clusters/applications/runner.rb

@@ -3,7 +3,7 @@
 module Clusters
   module Applications
     class Runner < ActiveRecord::Base
-      VERSION = '0.1.38'.freeze
+      VERSION = '0.1.39'.freeze
 
       self.table_name = 'clusters_applications_runners'
 

app/models/commit.rb

@@ -177,7 +177,9 @@ class Commit
   def title
     return full_title if full_title.length < 100
 
-    full_title.truncate(81, separator: ' ', omission: '…')
+    # Use three dots instead of the ellipsis Unicode character because
+    # some clients show the raw Unicode value in the merge commit.
+    full_title.truncate(81, separator: ' ', omission: '...')
   end
 
   # Returns the full commits title

app/models/concerns/discussion_on_diff.rb

@@ -38,12 +38,13 @@ module DiscussionOnDiff
   end
 
   # Returns an array of at most 16 highlighted lines above a diff note
-  def truncated_diff_lines(highlight: true)
+  def truncated_diff_lines(highlight: true, diff_limit: nil)
     return [] if diff_line.nil? && first_note.is_a?(LegacyDiffNote)
 
+    diff_limit = [diff_limit, NUMBER_OF_TRUNCATED_DIFF_LINES].compact.min
     lines = highlight ? highlighted_diff_lines : diff_lines
 
-    initial_line_index = [diff_line.index - NUMBER_OF_TRUNCATED_DIFF_LINES + 1, 0].max
+    initial_line_index = [diff_line.index - diff_limit + 1, 0].max
 
     prev_lines = []
 

app/models/merge_request.rb

@@ -541,15 +541,26 @@ class MergeRequest < ActiveRecord::Base
 
   def validate_branches
     if target_project == source_project && target_branch == source_branch
-      errors.add :branch_conflict, "You can not use same project/branch for source and target"
+      errors.add :branch_conflict, "You can't use same project/branch for source and target"
+      return
     end
 
     if opened?
-      similar_mrs = self.target_project.merge_requests.where(source_branch: source_branch, target_branch: target_branch, source_project_id: source_project.try(:id)).opened
-      similar_mrs = similar_mrs.where('id not in (?)', self.id) if self.id
-      if similar_mrs.any?
-        errors.add :validate_branches,
-                   "Cannot Create: This merge request already exists: #{similar_mrs.pluck(:title)}"
+      similar_mrs = target_project
+        .merge_requests
+        .where(source_branch: source_branch, target_branch: target_branch)
+        .where(source_project_id: source_project&.id)
+        .opened
+
+      similar_mrs = similar_mrs.where.not(id: id) if persisted?
+
+      conflict = similar_mrs.first
+
+      if conflict.present?
+        errors.add(
+          :validate_branches,
+          "Another open merge request already exists for this source branch: #{conflict.to_reference}"
+        )
       end
     end
   end

app/serializers/cluster_application_entity.rb

@@ -6,4 +6,5 @@ class ClusterApplicationEntity < Grape::Entity
   expose :status_reason
   expose :external_ip, if: -> (e, _) { e.respond_to?(:external_ip) }
   expose :hostname, if: -> (e, _) { e.respond_to?(:hostname) }
+  expose :email, if: -> (e, _) { e.respond_to?(:email) }
 end

app/serializers/diff_file_base_entity.rb

+# frozen_string_literal: true
+
+class DiffFileBaseEntity < Grape::Entity
+  include RequestAwareEntity
+  include BlobHelper
+  include SubmoduleHelper
+  include DiffHelper
+  include TreeHelper
+  include ChecksCollaboration
+  include Gitlab::Utils::StrongMemoize
+
+  expose :content_sha
+  expose :submodule?, as: :submodule
+
+  expose :submodule_link do |diff_file|
+    memoized_submodule_links(diff_file).first
+  end
+
+  expose :submodule_tree_url do |diff_file|
+    memoized_submodule_links(diff_file).last
+  end
+
+  expose :edit_path, if: -> (_, options) { options[:merge_request] } do |diff_file|
+    merge_request = options[:merge_request]
+
+    options = merge_request.persisted? ? { from_merge_request_iid: merge_request.iid } : {}
+
+    next unless merge_request.source_project
+
+    project_edit_blob_path(merge_request.source_project,
+      tree_join(merge_request.source_branch, diff_file.new_path),
+      options)
+  end
+
+  expose :old_path_html do |diff_file|
+    old_path, _ = mark_inline_diffs(diff_file.old_path, diff_file.new_path)
+    old_path
+  end
+
+  expose :new_path_html do |diff_file|
+    _, new_path = mark_inline_diffs(diff_file.old_path, diff_file.new_path)
+    new_path
+  end
+
+  expose :formatted_external_url, if: -> (_, options) { options[:environment] } do |diff_file|
+    options[:environment].formatted_external_url
+  end
+
+  expose :external_url, if: -> (_, options) { options[:environment] } do |diff_file|
+    options[:environment].external_url_for(diff_file.new_path, diff_file.content_sha)
+  end
+
+  expose :blob, using: BlobEntity
+
+  expose :can_modify_blob do |diff_file|
+    merge_request = options[:merge_request]
+
+    next unless diff_file.blob
+
+    if merge_request&.source_project && current_user
+      can_modify_blob?(diff_file.blob, merge_request.source_project, merge_request.source_branch)
+    else
+      false
+    end
+  end
+
+  expose :file_hash do |diff_file|
+    Digest::SHA1.hexdigest(diff_file.file_path)
+  end
+
+  expose :file_path
+  expose :old_path
+  expose :new_path
+  expose :new_file?, as: :new_file
+  expose :collapsed?, as: :collapsed
+  expose :text?, as: :text
+  expose :diff_refs
+  expose :stored_externally?, as: :stored_externally
+  expose :external_storage
+  expose :renamed_file?, as: :renamed_file
+  expose :deleted_file?, as: :deleted_file
+  expose :mode_changed?, as: :mode_changed
+  expose :a_mode
+  expose :b_mode
+
+  private
+
+  def memoized_submodule_links(diff_file)
+    strong_memoize(:submodule_links) do
+      if diff_file.submodule?
+        submodule_links(diff_file.blob, diff_file.content_sha, diff_file.repository)
+      else
+        []
+      end
+    end
+  end
+
+  def current_user
+    request.current_user
+  end
+end

app/serializers/diff_file_entity.rb

 # frozen_string_literal: true
 
-class DiffFileEntity < Grape::Entity
-  include RequestAwareEntity
+class DiffFileEntity < DiffFileBaseEntity
   include CommitsHelper
-  include DiffHelper
-  include SubmoduleHelper
-  include BlobHelper
   include IconsHelper
-  include TreeHelper
-  include ChecksCollaboration
-  include Gitlab::Utils::StrongMemoize
 
-  expose :submodule?, as: :submodule
-
-  expose :submodule_link do |diff_file|
-    memoized_submodule_links(diff_file).first
-  end
-
-  expose :submodule_tree_url do |diff_file|
-    memoized_submodule_links(diff_file).last
-  end
-
-  expose :blob, using: BlobEntity
-
-  expose :can_modify_blob do |diff_file|
-    merge_request = options[:merge_request]
-
-    next unless diff_file.blob
-
-    if merge_request&.source_project && current_user
-      can_modify_blob?(diff_file.blob, merge_request.source_project, merge_request.source_branch)
-    else
-      false
-    end
-  end
-
-  expose :file_hash do |diff_file|
-    Digest::SHA1.hexdigest(diff_file.file_path)
-  end
-
-  expose :file_path
   expose :too_large?, as: :too_large
-  expose :collapsed?, as: :collapsed
-  expose :new_file?, as: :new_file
-
-  expose :deleted_file?, as: :deleted_file
-  expose :renamed_file?, as: :renamed_file
-  expose :mode_changed?, as: :mode_changed
-  expose :old_path
-  expose :new_path
-  expose :mode_changed?, as: :mode_changed
-  expose :a_mode
-  expose :b_mode
-  expose :text?, as: :text
   expose :added_lines
   expose :removed_lines
-  expose :diff_refs
-  expose :content_sha
-  expose :stored_externally?, as: :stored_externally
-  expose :external_storage
 
   expose :load_collapsed_diff_url, if: -> (diff_file, options) { diff_file.text? && options[:merge_request] } do |diff_file|
     merge_request = options[:merge_request]
@@ -76,36 +24,6 @@ class DiffFileEntity < Grape::Entity
     )
   end
 
-  expose :formatted_external_url, if: -> (_, options) { options[:environment] } do |diff_file|
-    options[:environment].formatted_external_url
-  end
-
-  expose :external_url, if: -> (_, options) { options[:environment] } do |diff_file|
-    options[:environment].external_url_for(diff_file.new_path, diff_file.content_sha)
-  end
-
-  expose :old_path_html do |diff_file|
-    old_path, _ = mark_inline_diffs(diff_file.old_path, diff_file.new_path)
-    old_path
-  end
-
-  expose :new_path_html do |diff_file|
-    _, new_path = mark_inline_diffs(diff_file.old_path, diff_file.new_path)
-    new_path
-  end
-
-  expose :edit_path, if: -> (_, options) { options[:merge_request] } do |diff_file|
-    merge_request = options[:merge_request]
-
-    options = merge_request.persisted? ? { from_merge_request_iid: merge_request.iid } : {}
-
-    next unless merge_request.source_project
-
-    project_edit_blob_path(merge_request.source_project,
-      tree_join(merge_request.source_branch, diff_file.new_path),
-      options)
-  end
-
   expose :view_path, if: -> (_, options) { options[:merge_request] } do |diff_file|
     merge_request = options[:merge_request]
 
@@ -146,18 +64,4 @@ class DiffFileEntity < Grape::Entity
 
   # Used for parallel diffs
   expose :parallel_diff_lines, using: DiffLineParallelEntity, if: -> (diff_file, _) { diff_file.text? }
-
-  def current_user
-    request.current_user
-  end
-
-  def memoized_submodule_links(diff_file)
-    strong_memoize(:submodule_links) do
-      if diff_file.submodule?
-        submodule_links(diff_file.blob, diff_file.content_sha, diff_file.repository)
-      else
-        []
-      end
-    end
-  end
 end

app/serializers/discussion_diff_file_entity.rb

+# frozen_string_literal: true
+
+class DiscussionDiffFileEntity < DiffFileBaseEntity
+end

app/serializers/discussion_entity.rb

@@ -36,7 +36,7 @@ class DiscussionEntity < Grape::Entity
     new_project_issue_path(discussion.project, merge_request_to_resolve_discussions_of: discussion.noteable.iid, discussion_to_resolve: discussion.id)
   end
 
-  expose :diff_file, using: DiffFileEntity, if: -> (d, _) { d.diff_discussion? }
+  expose :diff_file, using: DiscussionDiffFileEntity, if: -> (d, _) { d.diff_discussion? }
 
   expose :diff_discussion?, as: :diff_discussion
 
@@ -46,19 +46,6 @@ class DiscussionEntity < Grape::Entity
 
   expose :truncated_diff_lines, using: DiffLineEntity, if: -> (d, _) { d.diff_discussion? && d.on_text? && (d.expanded? || render_truncated_diff_lines?) }
 
-  expose :image_diff_html, if: -> (d, _) { d.diff_discussion? && d.on_image? } do |discussion|
-    diff_file = discussion.diff_file
-    partial = diff_file.new_file? || diff_file.deleted_file? ? 'single_image_diff' : 'replaced_image_diff'
-    options[:context].render_to_string(
-      partial: "projects/diffs/#{partial}",
-      locals: { diff_file: diff_file,
-                position: discussion.position.to_json,
-                click_to_comment: false },
-      layout: false,
-      formats: [:html]
-    )
-  end
-
   expose :for_commit?, as: :for_commit
   expose :commit_id
 

app/serializers/trigger_variable_entity.rb

@@ -3,5 +3,6 @@
 class TriggerVariableEntity < Grape::Entity
   include RequestAwareEntity
 
-  expose :key, :value, :public
+  expose :key, :public
+  expose :value, if: ->(_, _) { can?(request.current_user, :admin_build, request.project) }
 end

app/services/clusters/applications/create_service.rb

@@ -20,7 +20,7 @@ module Clusters
           end
 
           if application.has_attribute?(:email)
-            application.email = current_user.email
+            application.email = params[:email]
           end
 
           if application.respond_to?(:oauth_application)

app/services/merge_requests/refresh_service.rb

@@ -58,13 +58,27 @@ module MergeRequests
         .preload(:latest_merge_request_diff)
         .where(target_branch: @push.branch_name).to_a
         .select(&:diff_head_commit)
+        .select do |merge_request|
+          commit_ids.include?(merge_request.diff_head_sha) &&
+            merge_request.merge_request_diff.state != 'empty'
+        end
+      merge_requests = filter_merge_requests(merge_requests)
+
+      return if merge_requests.empty?
 
-      merge_requests = merge_requests.select do |merge_request|
-        commit_ids.include?(merge_request.diff_head_sha) &&
-          merge_request.merge_request_diff.state != 'empty'
+      commit_analyze_enabled = Feature.enabled?(:branch_push_merge_commit_analyze, @project, default_enabled: true)
+      if commit_analyze_enabled
+        analyzer = Gitlab::BranchPushMergeCommitAnalyzer.new(
+          @commits.reverse,
+          relevant_commit_ids: merge_requests.map(&:diff_head_sha)
+        )
       end
 
-      filter_merge_requests(merge_requests).each do |merge_request|
+      merge_requests.each do |merge_request|
+        if commit_analyze_enabled
+          merge_request.merge_commit_sha = analyzer.get_merge_commit(merge_request.diff_head_sha)
+        end
+
         MergeRequests::PostMergeService
           .new(merge_request.target_project, @current_user)
           .execute(merge_request)

app/views/notify/_note_email.html.haml

-- discussion = @note.discussion if @note.part_of_discussion?
+- note = local_assigns.fetch(:note, @note)
+- diff_limit = local_assigns.fetch(:diff_limit, nil)
+- target_url = local_assigns.fetch(:target_url, @target_url)
+- note_style = local_assigns.fetch(:note_style, "")
+
+- discussion = note.discussion if note.part_of_discussion?
 - diff_discussion = discussion&.diff_discussion?
 - on_image = discussion.on_image? if diff_discussion
 
 - if discussion
   - phrase_end_char = on_image ? "." : ":"
 
-  %p.details
+  %p{ style: "color: #777777;" }
     = succeed phrase_end_char do
-      = link_to @note.author_name, user_url(@note.author)
+      = link_to note.author_name, user_url(note.author)
 
       - if diff_discussion
         - if discussion.new_discussion?
@@ -15,16 +20,16 @@
         - else
           commented on a discussion
 
-        on #{link_to discussion.file_path, @target_url}
+        on #{link_to discussion.file_path, target_url}
       - else
         - if discussion.new_discussion?
           started a new discussion
         - else
-          commented on a #{link_to 'discussion', @target_url}
+          commented on a #{link_to 'discussion', target_url}
 
 - elsif Gitlab::CurrentSettings.email_author_in_body
   %p.details
-    #{link_to @note.author_name, user_url(@note.author)} commented:
+    #{link_to note.author_name, user_url(note.author)} commented:
 
 - if diff_discussion && !on_image
   = content_for :head do
@@ -32,11 +37,11 @@
 
   %table
     = render partial: "projects/diffs/line",
-      collection: discussion.truncated_diff_lines,
+      collection: discussion.truncated_diff_lines(diff_limit: diff_limit),
       as: :line,
       locals: { diff_file: discussion.diff_file,
         plain: true,
         email: true }
 
-%div
-  = markdown(@note.note, pipeline: :email, author: @note.author)
+%div{ style: note_style }
+  = markdown(note.note, pipeline: :email, author: note.author)

app/views/notify/_note_email.text.erb

-<%  discussion = @note.discussion if @note.part_of_discussion? -%>
+<% note = local_assigns.fetch(:note, @note) -%>
+<% diff_limit = local_assigns.fetch(:diff_limit, nil) -%>
+
+<%  discussion = note.discussion if note.part_of_discussion? -%>
 <%  if discussion && !discussion.individual_note? -%>
-<%=   @note.author_name -%>
+<%=   note.author_name -%>
 <%    if discussion.new_discussion? -%>
 <%=     " started a new discussion" -%>
 <%    else -%>
@@ -13,14 +16,14 @@
 
 
 <%  elsif Gitlab::CurrentSettings.email_author_in_body -%>
-<%=     "#{@note.author_name} commented:" -%>
+<%=     "#{note.author_name} commented:" -%>
 
 
 <%  end -%>
 <%  if discussion&.diff_discussion? -%>
-<%    discussion.truncated_diff_lines(highlight: false).each do |line| -%>
+<%    discussion.truncated_diff_lines(highlight: false, diff_limit: diff_limit).each do |line| -%>
 <%=     "> #{line.text}\n" -%>
 <%    end -%>
 
 <%  end -%>
-<%= @note.note -%>
+<%= note.note -%>

app/views/projects/labels/index.html.haml

@@ -5,7 +5,7 @@
 - subscribed = params[:subscribed]
 - labels_or_filters = @labels.exists? || @prioritized_labels.exists? || search.present? || subscribed.present?
 
-- if @labels.present? && can_admin_label
+- if labels_or_filters && can_admin_label
   - content_for(:header_content) do
     .nav-controls
       = link_to _('New label'), new_project_label_path(@project), class: "btn btn-success qa-label-create-new"

app/workers/new_note_worker.rb

@@ -8,11 +8,18 @@ class NewNoteWorker
   # rubocop: disable CodeReuse/ActiveRecord
   def perform(note_id, _params = {})
     if note = Note.find_by(id: note_id)
-      NotificationService.new.new_note(note)
+      NotificationService.new.new_note(note) unless skip_notification?(note)
       Notes::PostProcessService.new(note).execute
     else
       Rails.logger.error("NewNoteWorker: couldn't find note with ID=#{note_id}, skipping job")
     end
   end
+
+  private
+
+  # EE-only method
+  def skip_notification?(note)
+    false
+  end
   # rubocop: enable CodeReuse/ActiveRecord
 end

changelogs/unreleased/20422-hide-ui-variables-by-default.yml

+---
+title: Pipeline trigger variable values are hidden in the UI by default. Maintainers
+  have the option to reveal them.
+merge_request: 23518
+author: jhampton
+type: added

changelogs/unreleased/22548-reopen-error-message.yml

+---
+title: Show error message when attempting to reopen an MR and there is an open MR
+  for the same branch
+merge_request: 16447
+author: Akos Gyimesi
+type: fixed

changelogs/unreleased/48889-populate-merge_commit_sha.yml

+---
+title: Fix "merged with [commit]" info for merge requests being merged automatically
+  by other actions
+merge_request: 22794
+author:
+type: fixed

changelogs/unreleased/51138-54026-breadcrumb-subgroups-ellipsis.yml

+---
+title: "Make auto-generated icons for subgroups in the breadcrumb dropdown display as a circle"
+merge_request: 23062
+author: Thomas Pathier
+type: fix
\ No newline at end of file

changelogs/unreleased/cert-manager-email.yml

+---
+title: Ability to override email for cert-manager
+merge_request: 23503
+author: Amit Rathi
+type: added

changelogs/unreleased/gt-show-primary-button-when-all-labels-are-prioritized.yml

+---
+title: Show primary button when all labels are prioritized
+merge_request: 23648
+author: George Tsiolis
+type: other

changelogs/unreleased/move-group-issues-search-cte-up-the-chain.yml

+---
+title: Fix error when searching for group issues with priority or popularity sort
+merge_request: 23445
+author:
+type: fixed

changelogs/unreleased/osw-remove-unnused-data-from-diff-discussions.yml

+---
+title: Remove unused data from discussions endpoint
+merge_request: 23570
+author:
+type: performance

changelogs/unreleased/sh-truncate-with-periods.yml

+---
+title: Truncate merge request titles with periods instead of ellipsis
+merge_request: 23558
+author:
+type: changed

changelogs/unreleased/store-correlation-logs.yml

+---
+title: Log and pass correlation-id between Unicorn, Sidekiq and Gitaly
+merge_request:
+author:
+type: added

changelogs/unreleased/update-gitlab-runner-helm-chart-to-0-1-39.yml

+---
+title: Update used version of Runner Helm Chart to 0.1.39
+merge_request: 23633
+author:
+type: other

changelogs/unreleased/winh-merge-request-diff-discussion-commit-id.yml

+---
+title: Pass commit when posting diff discussions
+merge_request: 23371
+author:
+type: fixed

changelogs/unreleased/winh-milestone-select.yml

+---
+title: Fix milestone select in issue sidebar of issue boards
+merge_request: 23625
+author:
+type: fixed

config/initializers/correlation_id.rb

+# frozen_string_literal: true
+
+Rails.application.config.middleware.use(Gitlab::Middleware::CorrelationId)

config/initializers/lograge.rb

@@ -29,6 +29,7 @@ unless Sidekiq.server?
       gitaly_calls = Gitlab::GitalyClient.get_request_count
       payload[:gitaly_calls] = gitaly_calls if gitaly_calls > 0
       payload[:response] = event.payload[:response] if event.payload[:response]
+      payload[Gitlab::CorrelationId::LOG_KEY] = Gitlab::CorrelationId.current_id
 
       payload
     end

config/initializers/sentry.rb

@@ -24,4 +24,4 @@ def configure_sentry
   end
 end
 
-configure_sentry if Rails.env.production?
+configure_sentry if Rails.env.production? || Rails.env.development?

config/initializers/sidekiq.rb

@@ -21,6 +21,7 @@ Sidekiq.configure_server do |config|
     chain.add Gitlab::SidekiqMiddleware::Shutdown
     chain.add Gitlab::SidekiqMiddleware::RequestStoreMiddleware unless ENV['SIDEKIQ_REQUEST_STORE'] == '0'
     chain.add Gitlab::SidekiqMiddleware::BatchLoader
+    chain.add Gitlab::SidekiqMiddleware::CorrelationLogger
     chain.add Gitlab::SidekiqStatus::ServerMiddleware
   end
 
@@ -31,6 +32,7 @@ Sidekiq.configure_server do |config|
 
   config.client_middleware do |chain|
     chain.add Gitlab::SidekiqStatus::ClientMiddleware
+    chain.add Gitlab::SidekiqMiddleware::CorrelationInjector
   end
 
   config.on :startup do
@@ -87,6 +89,7 @@ Sidekiq.configure_client do |config|
   config.redis = queues_config_hash
 
   config.client_middleware do |chain|
+    chain.add Gitlab::SidekiqMiddleware::CorrelationInjector
     chain.add Gitlab::SidekiqStatus::ClientMiddleware
   end
 end

danger/documentation/Dangerfile

@@ -24,23 +24,24 @@ The following files require a review from the Documentation team:
 
 * #{docs_paths_to_review.map { |path| "`#{path}`" }.join("\n* ")}
 
-When your content is ready for review, mention a technical writer in a separate
-comment and explain what needs to be reviewed.
-
-You are welcome to mention them sooner if you have questions about writing or updating
-the documentation. GitLabbers are also welcome to use the [#docs](https://gitlab.slack.com/archives/C16HYA2P5) channel on Slack.
-
-Who to ping [based on DevOps stages](https://about.gitlab.com/handbook/product/categories/#devops-stages):
+When your content is ready for review, assign the MR to a technical writer
+according to the [DevOps stages](https://about.gitlab.com/handbook/product/categories/#devops-stages)
+in the table below. If necessary, mention them in a comment explaining what needs
+to be reviewed.
 
 | Tech writer  | Stage(s)                                                     |
 | ------------ | ------------------------------------------------------------ |
-| `@marcia`    | ~Create ~Release                                             |
+| `@marcia`    | ~Create ~Release + ~"development guidelines"                 |
 | `@axil`      | ~Distribution ~Gitaly ~Gitter ~Monitoring ~Packaging ~Secure |
 | `@eread`     | ~Manage ~Configure ~Geo ~Verify                              |
 | `@mikelewis` | ~Plan                                                        |
 
+You are welcome to mention them sooner if you have questions about writing or
+updating the documentation. GitLabbers are also welcome to use the
+[#docs](https://gitlab.slack.com/archives/C16HYA2P5) channel on Slack.
+
 If you are not sure which category the change falls within, or the change is not
-part of one of these categories, you can mention one of the usernames above.
+part of one of these categories, mention one of the usernames above.
   MARKDOWN
 
   unless gitlab.mr_labels.include?('Documentation')

db/fixtures/development/04_project.rb

@@ -71,13 +71,17 @@ Sidekiq::Testing.inline! do
         params[:storage_version] = Project::LATEST_STORAGE_VERSION
       end
 
-      project = Projects::CreateService.new(User.first, params).execute
-      # Seed-Fu runs this entire fixture in a transaction, so the `after_commit`
-      # hook won't run until after the fixture is loaded. That is too late
-      # since the Sidekiq::Testing block has already exited. Force clearing
-      # the `after_commit` queue to ensure the job is run now.
+      project = nil
+
       Sidekiq::Worker.skipping_transaction_check do
+        project = Projects::CreateService.new(User.first, params).execute
+
+        # Seed-Fu runs this entire fixture in a transaction, so the `after_commit`
+        # hook won't run until after the fixture is loaded. That is too late
+        # since the Sidekiq::Testing block has already exited. Force clearing
+        # the `after_commit` queue to ensure the job is run now.
         project.send(:_run_after_commit_queue)
+        project.import_state.send(:_run_after_commit_queue)
       end
 
       if project.valid? && project.valid_repo?

db/fixtures/development/10_merge_requests.rb

@@ -25,7 +25,9 @@ Gitlab::Seeder.quiet do
       developer = project.team.developers.sample
       break unless developer
 
-      MergeRequests::CreateService.new(project, developer, params).execute
+      Sidekiq::Worker.skipping_transaction_check do
+        MergeRequests::CreateService.new(project, developer, params).execute
+      end
       print '.'
     end
   end
@@ -39,7 +41,9 @@ Gitlab::Seeder.quiet do
     target_branch: 'master',
     title: 'Can be automatically merged'
   }
-  MergeRequests::CreateService.new(project, User.admins.first, params).execute
+  Sidekiq::Worker.skipping_transaction_check do
+    MergeRequests::CreateService.new(project, User.admins.first, params).execute
+  end
   print '.'
 
   params = {
@@ -47,6 +51,8 @@ Gitlab::Seeder.quiet do
     target_branch: 'feature',
     title: 'Cannot be automatically merged'
   }
-  MergeRequests::CreateService.new(project, User.admins.first, params).execute
+  Sidekiq::Worker.skipping_transaction_check do
+    MergeRequests::CreateService.new(project, User.admins.first, params).execute
+  end
   print '.'
 end

doc/api/merge_requests.md

@@ -989,10 +989,9 @@ curl --request DELETE --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://git
 
 Merge changes submitted with MR using this API.
 
+If merge request is unable to be accepted (ie: Work in Progress, Closed, Pipeline Pending Completion, or Failed while requiring Success) - you'll get a `405` and the error message 'Method Not Allowed'
 
-If it has some conflicts and can not be merged - you'll get a `405` and the error message 'Branch cannot be merged'
-
-If merge request is already merged or closed - you'll get a `406` and the error message 'Method Not Allowed'
+If it has some conflicts and can not be merged - you'll get a `406` and the error message 'Branch cannot be merged'
 
 If the `sha` parameter is passed and does not match the HEAD of the source - you'll get a `409` and the error message 'SHA does not match HEAD of source branch'
 

doc/api/search.md

@@ -910,16 +910,22 @@ Example response:
 
 ### Scope: wiki_blobs
 
+Filters are available for this scope:
+
+- filename
+- path
+- extension
+
+To use a filter simply include it in your query like: `a query filename:some_name*`.
+You may use wildcards (`*`) to use glob matching.
+
 Wiki blobs searches are performed on both filenames and contents. Search
 results:
 
 - Found in filenames are displayed before results found in contents.
 - May contain multiple matches for the same blob because the search string
-  might be found in both the filename and content, and matches of the different
-types are displayed separately.
-- May contain multiple matches for the same blob because the search string
-  might be found if the search string appears multiple times in the content.
-
+  might be found in both the filename and content, or might appear multiple
+  times in the content.
 
 ```bash
 curl --request GET --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/projects/6/search?scope=wiki_blobs&search=bye
@@ -976,22 +982,20 @@ Example response:
 ### Scope: blobs
 
 Filters are available for this scope:
+
 - filename
 - path
 - extension
 
-to use a filter simply include it in your query like so: `a query filename:some_name*`.
+To use a filter simply include it in your query like: `a query filename:some_name*`.
+You may use wildcards (`*`) to use glob matching.
 
 Blobs searches are performed on both filenames and contents. Search results:
 
 - Found in filenames are displayed before results found in contents.
 - May contain multiple matches for the same blob because the search string
-  might be found in both the filename and content, and matches of the different
-types are displayed separately.
-- May contain multiple matches for the same blob because the search string
-  might be found if the search string appears multiple times in the content.
-
-You may use wildcards (`*`) to use glob matching.
+  might be found in both the filename and content, or might appear multiple
+  times in the content.
 
 ```bash
 curl --request GET --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/projects/6/search?scope=blobs&search=installation

doc/ci/triggers/README.md

@@ -204,7 +204,7 @@ file. The parameter is of the form:
 variables[key]=value
 ```
 
-This information is also exposed in the UI.
+This information is also exposed in the UI. Please note that _values_ are only viewable by Owners and Maintainers.
 
 ![Job variables in UI](img/trigger_variables.png)
 

doc/development/documentation/index.md

@@ -368,6 +368,16 @@ You can combine one or more of the following:
       = link_to 'Help page', help_page_path('user/permissions')
     ```
 
+### GitLab `/help` tests
+
+Several [rspec tests](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/spec/features/help_pages_spec.rb)
+are run to ensure GitLab documentation renders and works correctly. In particular, that [main docs landing page](../../README.md) will work correctly from `/help`.
+For example, [GitLab.com's `/help`](https://gitlab.com/help).
+
+CAUTION: **Caution:**
+Because the rspec tests only run in a full pipeline, and not a special [docs-only pipeline](#branch-naming), it is possible
+to merge changes that will break `master` from a merge request with a successful docs-only pipeline run.
+
 ## General Documentation vs Technical Articles
 
 ### General documentation
@@ -552,6 +562,7 @@ Currently, the following tests are in place:
     As CE is merged into EE once a day, it's important to avoid merge conflicts.
     Submitting an EE-equivalent merge request cherry-picking all commits from CE to EE is
     essential to avoid them.
+1. In a full pipeline, tests for [`/help`](#gitlab-help-tests).
 
 ### Linting
 

doc/development/feature_flags.md

@@ -113,7 +113,15 @@ feature flag. You can stub a feature flag as follows:
 stub_feature_flags(my_feature_flag: false)
 ```
 
-## Enabling a feature flag
+## Enabling a feature flag (in development)
+
+In the rails console (`rails c`), enter the following command to enable your feature flag
+
+```ruby
+Feature.enable(:feature_flag_name)
+```
+
+## Enabling a feature flag (in production)
 
 Check how to [roll out changes using feature flags](rolling_out_changes_using_feature_flags.md).
 

doc/user/project/clusters/index.md

@@ -268,7 +268,7 @@ deployments.
 | ----------- | :------------: | ----------- | --------------- |
 | [Helm Tiller](https://docs.helm.sh/) | 10.2+ | Helm is a package manager for Kubernetes and is required to install all the other applications. It is installed in its own pod inside the cluster which can run the `helm` CLI in a safe environment. | n/a |
 | [Ingress](https://kubernetes.io/docs/concepts/services-networking/ingress/) | 10.2+ | Ingress can provide load balancing, SSL termination, and name-based virtual hosting. It acts as a web proxy for your applications and is useful if you want to use [Auto DevOps] or deploy your own web apps. | [stable/nginx-ingress](https://github.com/helm/charts/tree/master/stable/nginx-ingress) |
-| [Cert Manager](http://docs.cert-manager.io/en/latest/) | 11.6+ | Cert Manager is a native Kubernetes certificate management controller that helps with issuing certificates. Installing Cert Manager on your cluster will issue a certificate by [Let's Encrypt](https://letsencrypt.org/) and ensure that certificates are valid and up to date. The email address used by Let's Encrypt registration will be taken from the GitLab user that installed Cert Manager on the cluster. | [stable/cert-manager](https://github.com/helm/charts/tree/master/stable/cert-manager) |
+| [Cert Manager](http://docs.cert-manager.io/en/latest/) | 11.6+ | Cert Manager is a native Kubernetes certificate management controller that helps with issuing certificates. Installing Cert Manager on your cluster will issue a certificate by [Let's Encrypt](https://letsencrypt.org/) and ensure that certificates are valid and up-to-date. | [stable/cert-manager](https://github.com/helm/charts/tree/master/stable/cert-manager) |
 | [Prometheus](https://prometheus.io/docs/introduction/overview/) | 10.4+ | Prometheus is an open-source monitoring and alerting system useful to supervise your deployed applications. | [stable/prometheus](https://github.com/helm/charts/tree/master/stable/prometheus) |
 | [GitLab Runner](https://docs.gitlab.com/runner/) | 10.6+ | GitLab Runner is the open source project that is used to run your jobs and send the results back to GitLab. It is used in conjunction with [GitLab CI/CD](https://about.gitlab.com/features/gitlab-ci-cd/), the open-source continuous integration service included with GitLab that coordinates the jobs. When installing the GitLab Runner via the applications, it will run in **privileged mode** by default. Make sure you read the [security implications](#security-implications) before doing so. | [runner/gitlab-runner](https://gitlab.com/charts/gitlab-runner) |
 | [JupyterHub](http://jupyter.org/) | 11.0+ | [JupyterHub](https://jupyterhub.readthedocs.io/en/stable/) is a multi-user service for managing notebooks across a team. [Jupyter Notebooks](https://jupyter-notebook.readthedocs.io/en/latest/) provide a web-based interactive programming environment used for data analysis, visualization, and machine learning. We use [this](https://gitlab.com/gitlab-org/jupyterhub-user-image/blob/master/Dockerfile) custom Jupyter image that installs additional useful packages on top of the base Jupyter. You will also see ready-to-use DevOps Runbooks built with Nurtch's [Rubix library](https://github.com/amit1rrr/rubix). More information on creating executable runbooks can be found at [Nurtch Documentation](http://docs.nurtch.com/en/latest).  **Note**: Authentication will be enabled for any user of the GitLab server via OAuth2. HTTPS will be supported in a future release. | [jupyter/jupyterhub](https://jupyterhub.github.io/helm-chart/) |

lib/api/api.rb

@@ -20,7 +20,8 @@ module API
                     Gitlab::GrapeLogging::Loggers::RouteLogger.new,
                     Gitlab::GrapeLogging::Loggers::UserLogger.new,
                     Gitlab::GrapeLogging::Loggers::QueueDurationLogger.new,
-                    Gitlab::GrapeLogging::Loggers::PerfLogger.new
+                    Gitlab::GrapeLogging::Loggers::PerfLogger.new,
+                    Gitlab::GrapeLogging::Loggers::CorrelationIdLogger.new
                   ]
 
     allow_access_with_scope :api
@@ -91,7 +92,6 @@ module API
     content_type :txt, "text/plain"
 
     # Ensure the namespace is right, otherwise we might load Grape::API::Helpers
-    helpers ::SentryHelper
     helpers ::API::Helpers
     helpers ::API::Helpers::CommonHelpers
 

lib/api/helpers.rb

@@ -381,10 +381,10 @@ module API
     end
 
     def handle_api_exception(exception)
-      if sentry_enabled? && report_exception?(exception)
+      if report_exception?(exception)
         define_params_for_grape_middleware
-        sentry_context
-        Raven.capture_exception(exception, extra: params)
+        Gitlab::Sentry.context(current_user)
+        Gitlab::Sentry.track_acceptable_exception(exception, extra: params)
       end
 
       # lifted from https://github.com/rails/rails/blob/master/actionpack/lib/action_dispatch/middleware/debug_exceptions.rb#L60

lib/gitlab/branch_push_merge_commit_analyzer.rb

+# frozen_string_literal: true
+
+module Gitlab
+  # Analyse a graph of commits from a push to a branch,
+  # for each commit, analyze that if it is the head of a merge request,
+  # then what should its merge_commit be, relative to the branch.
+  #
+  # A----->B----->C----->D   target branch
+  # |             ^
+  # |             |
+  # +-->E----->F--+          merged branch
+  #     |     ^
+  #     |     |
+  #     +->G--+
+  #
+  # (See merge-commit-analyze-after branch in gitlab-test)
+  #
+  # Assuming
+  # - A is already in remote
+  # - B~D are all in its own branch with its own merge request, targeting the target branch
+  #
+  # When D is finally pushed to the target branch,
+  # what are the merge commits for all the other merge requests?
+  #
+  # We can walk backwards from the HEAD commit D,
+  # and find status of its parents.
+  # First we determine if commit belongs to the target branch (i.e. A, B, C, D),
+  # and then determine its merge commit.
+  #
+  # +--------+-----------------+--------------+
+  # | Commit | Direct ancestor | Merge commit |
+  # +--------+-----------------+--------------+
+  # | D      | Y               | D            |
+  # +--------+-----------------+--------------+
+  # | C      | Y               | C            |
+  # +--------+-----------------+--------------+
+  # | F      |                 | C            |
+  # +--------+-----------------+--------------+
+  # | B      | Y               | B            |
+  # +--------+-----------------+--------------+
+  # | E      |                 | C            |
+  # +--------+-----------------+--------------+
+  # | G      |                 | C            |
+  # +--------+-----------------+--------------+
+  #
+  # By examining the result, it can be said that
+  #
+  # - If commit is direct ancestor of HEAD, its merge commit is itself.
+  # - Otherwise, the merge commit is the same as its child's merge commit.
+  #
+  class BranchPushMergeCommitAnalyzer
+    class CommitDecorator < SimpleDelegator
+      attr_accessor :merge_commit
+      attr_writer :direct_ancestor # boolean
+
+      def direct_ancestor?
+        @direct_ancestor
+      end
+
+      # @param child_commit [CommitDecorator]
+      # @param first_parent [Boolean] whether `self` is the first parent of `child_commit`
+      def set_merge_commit(child_commit:)
+        @merge_commit ||= direct_ancestor? ? self : child_commit.merge_commit
+      end
+    end
+
+    # @param commits [Array] list of commits, must be ordered from the child (tip) of the graph back to the ancestors
+    def initialize(commits, relevant_commit_ids: nil)
+      @commits = commits
+      @id_to_commit = {}
+      @commits.each do |commit|
+        @id_to_commit[commit.id] = CommitDecorator.new(commit)
+
+        if relevant_commit_ids
+          relevant_commit_ids.delete(commit.id)
+          break if relevant_commit_ids.empty? # Only limit the analyze up to relevant_commit_ids
+        end
+      end
+
+      analyze
+    end
+
+    def get_merge_commit(id)
+      get_commit(id).merge_commit.id
+    end
+
+    private
+
+    def analyze
+      head_commit = get_commit(@commits.first.id)
+      head_commit.direct_ancestor = true
+      head_commit.merge_commit = head_commit
+
+      mark_all_direct_ancestors(head_commit)
+
+      # Analyzing a commit requires its child commit be analyzed first,
+      # which is the case here since commits are ordered from child to parent.
+      @id_to_commit.each_value do |commit|
+        analyze_parents(commit)
+      end
+    end
+
+    def analyze_parents(commit)
+      commit.parent_ids.each do |parent_commit_id|
+        parent_commit = get_commit(parent_commit_id)
+
+        next unless parent_commit # parent commit may not be part of new commits
+
+        parent_commit.set_merge_commit(child_commit: commit)
+      end
+    end
+
+    # Mark all direct ancestors.
+    # If child commit is a direct ancestor, its first parent is also a direct ancestor.
+    # We assume direct ancestors matches the trail of the target branch over time,
+    # This assumption is correct most of the time, especially for gitlab managed merges,
+    # but there are exception cases which can't be solved (https://stackoverflow.com/a/49754723/474597)
+    def mark_all_direct_ancestors(commit)
+      loop do
+        commit = get_commit(commit.parent_ids.first)
+
+        break unless commit
+
+        commit.direct_ancestor = true
+      end
+    end
+
+    def get_commit(id)
+      @id_to_commit[id]
+    end
+  end
+end

lib/gitlab/correlation_id.rb

+# frozen_string_literal: true
+
+module Gitlab
+  module CorrelationId
+    LOG_KEY = 'correlation_id'.freeze
+
+    class << self
+      def use_id(correlation_id, &blk)
+        # always generate a id if null is passed
+        correlation_id ||= new_id
+
+        ids.push(correlation_id || new_id)
+
+        begin
+          yield(current_id)
+        ensure
+          ids.pop
+        end
+      end
+
+      def current_id
+        ids.last
+      end
+
+      def current_or_new_id
+        current_id || new_id
+      end
+
+      private
+
+      def ids
+        Thread.current[:correlation_id] ||= []
+      end
+
+      def new_id
+        SecureRandom.uuid
+      end
+    end
+  end
+end

lib/gitlab/gitaly_client.rb

@@ -193,6 +193,7 @@ module Gitlab
       feature = feature_stack && feature_stack[0]
       metadata['call_site'] = feature.to_s if feature
       metadata['gitaly-servers'] = address_metadata(remote_storage) if remote_storage
+      metadata['correlation_id'] = Gitlab::CorrelationId.current_id if Gitlab::CorrelationId.current_id
 
       metadata.merge!(server_feature_flags)
 

lib/gitlab/grape_logging/loggers/correlation_id_logger.rb

+# frozen_string_literal: true
+
+# This module adds additional correlation id the grape logger
+module Gitlab
+  module GrapeLogging
+    module Loggers
+      class CorrelationIdLogger < ::GrapeLogging::Loggers::Base
+        def parameters(_, _)
+          { Gitlab::CorrelationId::LOG_KEY => Gitlab::CorrelationId.current_id }
+        end
+      end
+    end
+  end
+end

lib/gitlab/json_logger.rb

@@ -10,6 +10,7 @@ module Gitlab
       data = {}
       data[:severity] = severity
       data[:time] = timestamp.utc.iso8601(3)
+      data[Gitlab::CorrelationId::LOG_KEY] = Gitlab::CorrelationId.current_id
 
       case message
       when String

lib/gitlab/middleware/correlation_id.rb

+# frozen_string_literal: true
+
+# A dumb middleware that steals correlation id
+# and sets it as a global context for the request
+module Gitlab
+  module Middleware
+    class CorrelationId
+      include ActionView::Helpers::TagHelper
+
+      def initialize(app)
+        @app = app
+      end
+
+      def call(env)
+        ::Gitlab::CorrelationId.use_id(correlation_id(env)) do
+          @app.call(env)
+        end
+      end
+
+      private
+
+      def correlation_id(env)
+        if Gitlab.rails5?
+          request(env).request_id
+        else
+          request(env).uuid
+        end
+      end
+
+      def request(env)
+        ActionDispatch::Request.new(env)
+      end
+    end
+  end
+end

lib/gitlab/sentry.rb

@@ -3,7 +3,8 @@
 module Gitlab
   module Sentry
     def self.enabled?
-      Rails.env.production? && Gitlab::CurrentSettings.sentry_enabled?
+      (Rails.env.production? || Rails.env.development?) &&
+        Gitlab::CurrentSettings.sentry_enabled?
     end
 
     def self.context(current_user = nil)
@@ -31,7 +32,7 @@ module Gitlab
     def self.track_exception(exception, issue_url: nil, extra: {})
       track_acceptable_exception(exception, issue_url: issue_url, extra: extra)
 
-      raise exception if should_raise?
+      raise exception if should_raise_for_dev?
     end
 
     # This should be used when you do not want to raise an exception in
@@ -43,7 +44,11 @@ module Gitlab
         extra[:issue_url] = issue_url if issue_url
         context # Make sure we've set everything we know in the context
 
-        Raven.capture_exception(exception, extra: extra)
+        tags = {
+          Gitlab::CorrelationId::LOG_KEY.to_sym => Gitlab::CorrelationId.current_id
+        }
+
+        Raven.capture_exception(exception, tags: tags, extra: extra)
       end
     end
 
@@ -55,7 +60,7 @@ module Gitlab
       end
     end
 
-    def self.should_raise?
+    def self.should_raise_for_dev?
       Rails.env.development? || Rails.env.test?
     end
   end

lib/gitlab/sidekiq_middleware/correlation_injector.rb

+# frozen_string_literal: true
+
+module Gitlab
+  module SidekiqMiddleware
+    class CorrelationInjector
+      def call(worker_class, job, queue, redis_pool)
+        job[Gitlab::CorrelationId::LOG_KEY] ||=
+          Gitlab::CorrelationId.current_or_new_id
+
+        yield
+      end
+    end
+  end
+end

lib/gitlab/sidekiq_middleware/correlation_logger.rb

+# frozen_string_literal: true
+
+module Gitlab
+  module SidekiqMiddleware
+    class CorrelationLogger
+      def call(worker, job, queue)
+        correlation_id = job[Gitlab::CorrelationId::LOG_KEY]
+
+        Gitlab::CorrelationId.use_id(correlation_id) do
+          yield
+        end
+      end
+    end
+  end
+end

locale/gitlab.pot

@@ -1838,6 +1838,9 @@ msgstr ""
 msgid "ClusterIntegration|Cert-Manager"
 msgstr ""
 
+msgid "ClusterIntegration|Cert-Manager is a native Kubernetes certificate management controller that helps with issuing certificates. Installing Cert-Manager on your cluster will issue a certificate by %{letsEncrypt} and ensure that certificates are valid and up-to-date."
+msgstr ""
+
 msgid "ClusterIntegration|Certificate Authority bundle (PEM format)"
 msgstr ""
 
@@ -1961,6 +1964,12 @@ msgstr ""
 msgid "ClusterIntegration|Integration status"
 msgstr ""
 
+msgid "ClusterIntegration|Issuer Email"
+msgstr ""
+
+msgid "ClusterIntegration|Issuers represent a certificate authority. You must provide an email address for your Issuer. "
+msgstr ""
+
 msgid "ClusterIntegration|Jupyter Hostname"
 msgstr ""
 
@@ -2183,9 +2192,6 @@ msgstr ""
 msgid "ClusterIntegration|access to Google Kubernetes Engine"
 msgstr ""
 
-msgid "ClusterIntegration|cert-manager is a native Kubernetes certificate management controller that helps with issuing certificates. Installing cert-manager on your cluster will issue a certificate by %{letsEncrypt} and ensure that certificates are valid and up to date."
-msgstr ""
-
 msgid "ClusterIntegration|check the pricing here"
 msgstr ""
 
@@ -4487,6 +4493,9 @@ msgid_plural "Hide values"
 msgstr[0] ""
 msgstr[1] ""
 
+msgid "Hide values"
+msgstr ""
+
 msgid "Hide whitespace changes"
 msgstr ""
 
@@ -7316,14 +7325,14 @@ msgstr ""
 msgid "Retry verification"
 msgstr ""
 
-msgid "Reveal Variables"
-msgstr ""
-
 msgid "Reveal value"
 msgid_plural "Reveal values"
 msgstr[0] ""
 msgstr[1] ""
 
+msgid "Reveal values"
+msgstr ""
+
 msgid "Revert this commit"
 msgstr ""
 
@@ -9439,6 +9448,9 @@ msgstr ""
 msgid "Variables are applied to environments via the runner. They can be protected by only exposing them to protected branches or tags. You can use variables for passwords, secret keys, or whatever you want."
 msgstr ""
 
+msgid "Variables:"
+msgstr ""
+
 msgid "Various container registry settings."
 msgstr ""
 

spec/controllers/application_controller_spec.rb

@@ -460,6 +460,14 @@ describe ApplicationController do
       expect(controller.last_payload.has_key?(:response)).to be_falsey
     end
 
+    it 'does log correlation id' do
+      Gitlab::CorrelationId.use_id('new-id') do
+        get :index
+      end
+
+      expect(controller.last_payload).to include('correlation_id' => 'new-id')
+    end
+
     context '422 errors' do
       it 'logs a response with a string' do
         response = spy(ActionDispatch::Response, status: 422, body: 'Hello world', content_type: 'application/json', cookies: {})

spec/controllers/groups_controller_spec.rb

@@ -258,9 +258,10 @@ describe GroupsController do
     end
 
     context 'searching' do
-      # Remove as part of https://gitlab.com/gitlab-org/gitlab-ce/issues/52271
       before do
+        # Remove in https://gitlab.com/gitlab-org/gitlab-ce/issues/54643
         stub_feature_flags(use_cte_for_group_issues_search: false)
+        stub_feature_flags(use_subquery_for_group_issues_search: true)
       end
 
       it 'works with popularity sort' do

spec/controllers/projects/jobs_controller_spec.rb

@@ -401,18 +401,56 @@ describe Projects::JobsController, :clean_gitlab_redis_shared_state do
       context 'with variables' do
         before do
           create(:ci_pipeline_variable, pipeline: pipeline, key: :TRIGGER_KEY_1, value: 'TRIGGER_VALUE_1')
+        end
 
-          get_show(id: job.id, format: :json)
+        context 'user is a maintainer' do
+          before do
+            project.add_maintainer(user)
+
+            get_show(id: job.id, format: :json)
+          end
+
+          it 'returns a job_detail' do
+            expect(response).to have_gitlab_http_status(:ok)
+            expect(response).to match_response_schema('job/job_details')
+          end
+
+          it 'exposes trigger information and variables' do
+            expect(json_response['trigger']['short_token']).to eq 'toke'
+            expect(json_response['trigger']['variables'].length).to eq 1
+          end
+
+          it 'exposes correct variable properties' do
+            first_variable = json_response['trigger']['variables'].first
+
+            expect(first_variable['key']).to eq "TRIGGER_KEY_1"
+            expect(first_variable['value']).to eq "TRIGGER_VALUE_1"
+            expect(first_variable['public']).to eq false
+          end
         end
 
-        it 'exposes trigger information and variables' do
-          expect(response).to have_gitlab_http_status(:ok)
-          expect(response).to match_response_schema('job/job_details')
-          expect(json_response['trigger']['short_token']).to eq 'toke'
-          expect(json_response['trigger']['variables'].length).to eq 1
-          expect(json_response['trigger']['variables'].first['key']).to eq "TRIGGER_KEY_1"
-          expect(json_response['trigger']['variables'].first['value']).to eq "TRIGGER_VALUE_1"
-          expect(json_response['trigger']['variables'].first['public']).to eq false
+        context 'user is not a mantainer' do
+          before do
+            get_show(id: job.id, format: :json)
+          end
+
+          it 'returns a job_detail' do
+            expect(response).to have_gitlab_http_status(:ok)
+            expect(response).to match_response_schema('job/job_details')
+          end
+
+          it 'exposes trigger information and variables' do
+            expect(json_response['trigger']['short_token']).to eq 'toke'
+            expect(json_response['trigger']['variables'].length).to eq 1
+          end
+
+          it 'exposes correct variable properties' do
+            first_variable = json_response['trigger']['variables'].first
+
+            expect(first_variable['key']).to eq "TRIGGER_KEY_1"
+            expect(first_variable['value']).to be_nil
+            expect(first_variable['public']).to eq false
+          end
         end
       end
     end

spec/controllers/projects/merge_requests_controller_spec.rb

@@ -290,6 +290,20 @@ describe Projects::MergeRequestsController do
 
       it_behaves_like 'update invalid issuable', MergeRequest
     end
+
+    context 'two merge requests with the same source branch' do
+      it 'does not allow a closed merge request to be reopened if another one is open' do
+        merge_request.close!
+        create(:merge_request, source_project: merge_request.source_project, source_branch: merge_request.source_branch)
+
+        update_merge_request(state_event: 'reopen')
+
+        errors = assigns[:merge_request].errors
+
+        expect(errors[:validate_branches]).to include(/Another open merge request already exists for this source branch/)
+        expect(merge_request.reload).to be_closed
+      end
+    end
   end
 
   describe 'POST merge' do

spec/features/projects/clusters/applications_spec.rb

@@ -70,6 +70,44 @@ describe 'Clusters Applications', :js do
         end
       end
 
+      context 'when user installs Cert Manager' do
+        before do
+          allow(ClusterInstallAppWorker).to receive(:perform_async)
+          allow(ClusterWaitForIngressIpAddressWorker).to receive(:perform_in)
+          allow(ClusterWaitForIngressIpAddressWorker).to receive(:perform_async)
+
+          create(:clusters_applications_helm, :installed, cluster: cluster)
+
+          page.within('.js-cluster-application-row-cert_manager') do
+            click_button 'Install'
+          end
+        end
+
+        it 'shows status transition' do
+          def email_form_value
+            page.find('.js-email').value
+          end
+
+          page.within('.js-cluster-application-row-cert_manager') do
+            expect(email_form_value).to eq(cluster.user.email)
+            expect(page).to have_css('.js-cluster-application-install-button', exact_text: 'Install')
+
+            page.find('.js-email').set("new_email@example.org")
+            Clusters::Cluster.last.application_cert_manager.make_installing!
+
+            expect(email_form_value).to eq('new_email@example.org')
+            expect(page).to have_css('.js-cluster-application-install-button', exact_text: 'Installing')
+
+            Clusters::Cluster.last.application_cert_manager.make_installed!
+
+            expect(email_form_value).to eq('new_email@example.org')
+            expect(page).to have_css('.js-cluster-application-install-button', exact_text: 'Installed')
+          end
+
+          expect(page).to have_content('Cert-Manager was successfully installed on your Kubernetes cluster')
+        end
+      end
+
       context 'when user installs Ingress' do
         context 'when user installs application: Ingress' do
           before do

spec/features/projects/jobs_spec.rb

@@ -346,44 +346,85 @@ describe 'Jobs', :clean_gitlab_redis_shared_state do
 
     describe 'Variables' do
       let(:trigger_request) { create(:ci_trigger_request) }
+      let(:job) { create(:ci_build, pipeline: pipeline, trigger_request: trigger_request) }
 
-      let(:job) do
-        create :ci_build, pipeline: pipeline, trigger_request: trigger_request
-      end
+      context 'when user is a maintainer' do
+        shared_examples 'no reveal button variables behavior' do
+          it 'renders a hidden value with no reveal values button', :js do
+            expect(page).to have_content('Token')
+            expect(page).to have_content('Variables')
+
+            expect(page).not_to have_css('.js-reveal-variables')
+
+            expect(page).to have_selector('.js-build-variable', text: 'TRIGGER_KEY_1')
+            expect(page).to have_selector('.js-build-value', text: '••••••')
+          end
+        end
+
+        context 'when variables are stored in trigger_request' do
+          before do
+            trigger_request.update_attribute(:variables, { 'TRIGGER_KEY_1' => 'TRIGGER_VALUE_1' } )
+
+            visit project_job_path(project, job)
+          end
+
+          it_behaves_like 'no reveal button variables behavior'
+        end
 
-      shared_examples 'expected variables behavior' do
-        it 'shows variable key and value after click', :js do
-          expect(page).to have_content('Token')
-          expect(page).to have_css('.js-reveal-variables')
-          expect(page).not_to have_css('.js-build-variable')
-          expect(page).not_to have_css('.js-build-value')
+        context 'when variables are stored in pipeline_variables' do
+          before do
+            create(:ci_pipeline_variable, pipeline: pipeline, key: 'TRIGGER_KEY_1', value: 'TRIGGER_VALUE_1')
 
-          click_button 'Reveal Variables'
+            visit project_job_path(project, job)
+          end
 
-          expect(page).not_to have_css('.js-reveal-variables')
-          expect(page).to have_selector('.js-build-variable', text: 'TRIGGER_KEY_1')
-          expect(page).to have_selector('.js-build-value', text: 'TRIGGER_VALUE_1')
+          it_behaves_like 'no reveal button variables behavior'
         end
       end
 
-      context 'when variables are stored in trigger_request' do
+      context 'when user is a maintainer' do
         before do
-          trigger_request.update_attribute(:variables, { 'TRIGGER_KEY_1' => 'TRIGGER_VALUE_1' } )
+          project.add_maintainer(user)
+        end
 
-          visit project_job_path(project, job)
+        shared_examples 'reveal button variables behavior' do
+          it 'renders a hidden value with a reveal values button', :js do
+            expect(page).to have_content('Token')
+            expect(page).to have_content('Variables')
+
+            expect(page).to have_css('.js-reveal-variables')
+
+            expect(page).to have_selector('.js-build-variable', text: 'TRIGGER_KEY_1')
+            expect(page).to have_selector('.js-build-value', text: '••••••')
+          end
+
+          it 'reveals values on button click', :js do
+            click_button 'Reveal values'
+
+            expect(page).to have_selector('.js-build-variable', text: 'TRIGGER_KEY_1')
+            expect(page).to have_selector('.js-build-value', text: 'TRIGGER_VALUE_1')
+          end
         end
 
-        it_behaves_like 'expected variables behavior'
-      end
+        context 'when variables are stored in trigger_request' do
+          before do
+            trigger_request.update_attribute(:variables, { 'TRIGGER_KEY_1' => 'TRIGGER_VALUE_1' } )
 
-      context 'when variables are stored in pipeline_variables' do
-        before do
-          create(:ci_pipeline_variable, pipeline: pipeline, key: 'TRIGGER_KEY_1', value: 'TRIGGER_VALUE_1')
+            visit project_job_path(project, job)
+          end
 
-          visit project_job_path(project, job)
+          it_behaves_like 'reveal button variables behavior'
         end
 
-        it_behaves_like 'expected variables behavior'
+        context 'when variables are stored in pipeline_variables' do
+          before do
+            create(:ci_pipeline_variable, pipeline: pipeline, key: 'TRIGGER_KEY_1', value: 'TRIGGER_VALUE_1')
+
+            visit project_job_path(project, job)
+          end
+
+          it_behaves_like 'reveal button variables behavior'
+        end
       end
     end
 

spec/features/projects/labels/update_prioritization_spec.rb

@@ -115,6 +115,21 @@ describe 'Prioritize labels' do
       end
     end
 
+    it 'user can see a primary button when there are only prioritized labels', :js do
+      visit project_labels_path(project)
+
+      page.within('.other-labels') do
+        all('.js-toggle-priority').each do |el|
+          el.click
+        end
+        wait_for_requests
+      end
+
+      page.within('.breadcrumbs-container') do
+        expect(page).to have_link('New label')
+      end
+    end
+
     it 'shows a help message about prioritized labels' do
       visit project_labels_path(project)
 

spec/finders/issues_finder_spec.rb

@@ -738,4 +738,131 @@ describe IssuesFinder do
       end
     end
   end
+
+  describe '#use_subquery_for_search?' do
+    let(:finder) { described_class.new(nil, params) }
+
+    before do
+      allow(Gitlab::Database).to receive(:postgresql?).and_return(true)
+      stub_feature_flags(use_subquery_for_group_issues_search: true)
+    end
+
+    context 'when there is no search param' do
+      let(:params) { { attempt_group_search_optimizations: true } }
+
+      it 'returns false' do
+        expect(finder.use_subquery_for_search?).to be_falsey
+      end
+    end
+
+    context 'when the database is not Postgres' do
+      let(:params) { { search: 'foo', attempt_group_search_optimizations: true } }
+
+      before do
+        allow(Gitlab::Database).to receive(:postgresql?).and_return(false)
+      end
+
+      it 'returns false' do
+        expect(finder.use_subquery_for_search?).to be_falsey
+      end
+    end
+
+    context 'when the attempt_group_search_optimizations param is falsey' do
+      let(:params) { { search: 'foo' } }
+
+      it 'returns false' do
+        expect(finder.use_subquery_for_search?).to be_falsey
+      end
+    end
+
+    context 'when the use_subquery_for_group_issues_search flag is disabled' do
+      let(:params) { { search: 'foo', attempt_group_search_optimizations: true } }
+
+      before do
+        stub_feature_flags(use_subquery_for_group_issues_search: false)
+      end
+
+      it 'returns false' do
+        expect(finder.use_subquery_for_search?).to be_falsey
+      end
+    end
+
+    context 'when all conditions are met' do
+      let(:params) { { search: 'foo', attempt_group_search_optimizations: true } }
+
+      it 'returns true' do
+        expect(finder.use_subquery_for_search?).to be_truthy
+      end
+    end
+  end
+
+  describe '#use_cte_for_search?' do
+    let(:finder) { described_class.new(nil, params) }
+
+    before do
+      allow(Gitlab::Database).to receive(:postgresql?).and_return(true)
+      stub_feature_flags(use_cte_for_group_issues_search: true)
+      stub_feature_flags(use_subquery_for_group_issues_search: false)
+    end
+
+    context 'when there is no search param' do
+      let(:params) { { attempt_group_search_optimizations: true } }
+
+      it 'returns false' do
+        expect(finder.use_cte_for_search?).to be_falsey
+      end
+    end
+
+    context 'when the database is not Postgres' do
+      let(:params) { { search: 'foo', attempt_group_search_optimizations: true } }
+
+      before do
+        allow(Gitlab::Database).to receive(:postgresql?).and_return(false)
+      end
+
+      it 'returns false' do
+        expect(finder.use_cte_for_search?).to be_falsey
+      end
+    end
+
+    context 'when the attempt_group_search_optimizations param is falsey' do
+      let(:params) { { search: 'foo' } }
+
+      it 'returns false' do
+        expect(finder.use_cte_for_search?).to be_falsey
+      end
+    end
+
+    context 'when the use_cte_for_group_issues_search flag is disabled' do
+      let(:params) { { search: 'foo', attempt_group_search_optimizations: true } }
+
+      before do
+        stub_feature_flags(use_cte_for_group_issues_search: false)
+      end
+
+      it 'returns false' do
+        expect(finder.use_cte_for_search?).to be_falsey
+      end
+    end
+
+    context 'when use_subquery_for_search? is true' do
+      let(:params) { { search: 'foo', attempt_group_search_optimizations: true } }
+
+      before do
+        stub_feature_flags(use_subquery_for_group_issues_search: true)
+      end
+
+      it 'returns false' do
+        expect(finder.use_cte_for_search?).to be_falsey
+      end
+    end
+
+    context 'when all conditions are met' do
+      let(:params) { { search: 'foo', attempt_group_search_optimizations: true } }
+
+      it 'returns true' do
+        expect(finder.use_cte_for_search?).to be_truthy
+      end
+    end
+  end
 end

spec/fixtures/api/schemas/cluster_status.json

@@ -32,7 +32,8 @@
         },
         "status_reason": { "type": ["string", "null"] },
         "external_ip": { "type": ["string", "null"] },
-        "hostname": { "type": ["string", "null"] }
+        "hostname": { "type": ["string", "null"] },
+        "email": { "type": ["string", "null"] }
       },
       "required" : [ "name", "status" ]
     }

spec/fixtures/api/schemas/job/trigger.json

@@ -12,12 +12,11 @@
         "type": "object",
         "required": [
           "key",
-          "value",
           "public"
         ],
         "properties": {
           "key": { "type": "string" },
-          "value": { "type": "string" },
+          "value": { "type": "string", "optional": true },
           "public": { "type": "boolean" }
         },
         "additionalProperties": false

spec/initializers/lograge_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe 'lograge', type: :request do
+  let(:headers) { { 'X-Request-ID' => 'new-correlation-id' } }
+
+  context 'for API requests' do
+    subject { get("/api/v4/endpoint", {}, headers) }
+
+    it 'logs to api_json log' do
+      # we assert receiving parameters by grape logger
+      expect_any_instance_of(Gitlab::GrapeLogging::Formatters::LogrageWithTimestamp).to receive(:call)
+        .with(anything, anything, anything, a_hash_including("correlation_id" => "new-correlation-id"))
+        .and_call_original
+
+      subject
+    end
+  end
+
+  context 'for Controller requests' do
+    subject { get("/", {}, headers) }
+
+    it 'logs to production_json log' do
+      # formatter receives a hash with correlation id
+      expect(Lograge.formatter).to receive(:call)
+        .with(a_hash_including("correlation_id" => "new-correlation-id"))
+        .and_call_original
+
+      # a log file receives a line with correlation id
+      expect(Lograge.logger).to receive(:send)
+        .with(anything, include('"correlation_id":"new-correlation-id"'))
+        .and_call_original
+
+      subject
+    end
+  end
+end

spec/javascripts/clusters/components/applications_spec.js

@@ -176,6 +176,54 @@ describe('Applications', () => {
       });
     });
 
+    describe('Cert-Manager application', () => {
+      describe('when not installed', () => {
+        it('renders email & allows editing', () => {
+          vm = mountComponent(Applications, {
+            applications: {
+              helm: { title: 'Helm Tiller', status: 'installed' },
+              ingress: { title: 'Ingress', status: 'installed', externalIp: '1.1.1.1' },
+              cert_manager: {
+                title: 'Cert-Manager',
+                email: 'before@example.com',
+                status: 'installable',
+              },
+              runner: { title: 'GitLab Runner' },
+              prometheus: { title: 'Prometheus' },
+              jupyter: { title: 'JupyterHub', hostname: '', status: 'installable' },
+              knative: { title: 'Knative', hostname: '', status: 'installable' },
+            },
+          });
+
+          expect(vm.$el.querySelector('.js-email').value).toEqual('before@example.com');
+          expect(vm.$el.querySelector('.js-email').getAttribute('readonly')).toBe(null);
+        });
+      });
+
+      describe('when installed', () => {
+        it('renders email in readonly', () => {
+          vm = mountComponent(Applications, {
+            applications: {
+              helm: { title: 'Helm Tiller', status: 'installed' },
+              ingress: { title: 'Ingress', status: 'installed', externalIp: '1.1.1.1' },
+              cert_manager: {
+                title: 'Cert-Manager',
+                email: 'after@example.com',
+                status: 'installed',
+              },
+              runner: { title: 'GitLab Runner' },
+              prometheus: { title: 'Prometheus' },
+              jupyter: { title: 'JupyterHub', hostname: '', status: 'installable' },
+              knative: { title: 'Knative', hostname: '', status: 'installable' },
+            },
+          });
+
+          expect(vm.$el.querySelector('.js-email').value).toEqual('after@example.com');
+          expect(vm.$el.querySelector('.js-email').getAttribute('readonly')).toEqual('readonly');
+        });
+      });
+    });
+
     describe('Jupyter application', () => {
       describe('with ingress installed with ip & jupyter installable', () => {
         it('renders hostname active input', () => {

spec/javascripts/clusters/services/mock_data.js

@@ -42,6 +42,7 @@ const CLUSTERS_MOCK_DATA = {
             name: 'cert_manager',
             status: APPLICATION_STATUS.ERROR,
             status_reason: 'Cannot connect',
+            email: 'test@example.com',
           },
         ],
       },
@@ -86,6 +87,7 @@ const CLUSTERS_MOCK_DATA = {
             name: 'cert_manager',
             status: APPLICATION_STATUS.ERROR,
             status_reason: 'Cannot connect',
+            email: 'test@example.com',
           },
         ],
       },

spec/javascripts/clusters/stores/clusters_store_spec.js

@@ -115,6 +115,7 @@ describe('Clusters Store', () => {
             statusReason: mockResponseData.applications[6].status_reason,
             requestStatus: null,
             requestReason: null,
+            email: mockResponseData.applications[6].email,
           },
         },
       });

spec/javascripts/diffs/mock_data/diff_discussions.js

@@ -489,8 +489,6 @@ export default {
   diff_discussion: true,
   truncated_diff_lines:
     '<tr class="line_holder new" id="">\n<td class="diff-line-num new old_line" data-linenumber="1">\n \n</td>\n<td class="diff-line-num new new_line" data-linenumber="1">\n1\n</td>\n<td class="line_content new noteable_line"><span id="LC1" class="line" lang="plaintext">  - Bad dates</span>\n</td>\n</tr>\n<tr class="line_holder new" id="">\n<td class="diff-line-num new old_line" data-linenumber="1">\n \n</td>\n<td class="diff-line-num new new_line" data-linenumber="2">\n2\n</td>\n<td class="line_content new noteable_line"><span id="LC2" class="line" lang="plaintext"></span>\n</td>\n</tr>\n',
-  image_diff_html:
-    '<div class="image js-replaced-image" data="">\n<div class="two-up view">\n<div class="wrap">\n<div class="frame deleted">\n<img alt="CHANGELOG" src="http://localhost:3000/gitlab-org/gitlab-test/raw/e63f41fe459e62e1228fcef60d7189127aeba95a/CHANGELOG" />\n</div>\n<p class="image-info hide">\n<span class="meta-filesize">22.3 KB</span>\n|\n<strong>W:</strong>\n<span class="meta-width"></span>\n|\n<strong>H:</strong>\n<span class="meta-height"></span>\n</p>\n</div>\n<div class="wrap">\n<div class="added frame js-image-frame" data-note-type="DiffNote" data-position="{&quot;base_sha&quot;:&quot;e63f41fe459e62e1228fcef60d7189127aeba95a&quot;,&quot;start_sha&quot;:&quot;d9eaefe5a676b820c57ff18cf5b68316025f7962&quot;,&quot;head_sha&quot;:&quot;c48ee0d1bf3b30453f5b32250ce03134beaa6d13&quot;,&quot;old_path&quot;:&quot;CHANGELOG&quot;,&quot;new_path&quot;:&quot;CHANGELOG&quot;,&quot;position_type&quot;:&quot;text&quot;,&quot;old_line&quot;:null,&quot;new_line&quot;:2}">\n<img alt="CHANGELOG" draggable="false" src="http://localhost:3000/gitlab-org/gitlab-test/raw/c48ee0d1bf3b30453f5b32250ce03134beaa6d13/CHANGELOG" />\n</div>\n\n<p class="image-info hide">\n<span class="meta-filesize">22.3 KB</span>\n|\n<strong>W:</strong>\n<span class="meta-width"></span>\n|\n<strong>H:</strong>\n<span class="meta-height"></span>\n</p>\n</div>\n</div>\n<div class="swipe view hide">\n<div class="swipe-frame">\n<div class="frame deleted">\n<img alt="CHANGELOG" src="http://localhost:3000/gitlab-org/gitlab-test/raw/e63f41fe459e62e1228fcef60d7189127aeba95a/CHANGELOG" />\n</div>\n<div class="swipe-wrap">\n<div class="added frame js-image-frame" data-note-type="DiffNote" data-position="{&quot;base_sha&quot;:&quot;e63f41fe459e62e1228fcef60d7189127aeba95a&quot;,&quot;start_sha&quot;:&quot;d9eaefe5a676b820c57ff18cf5b68316025f7962&quot;,&quot;head_sha&quot;:&quot;c48ee0d1bf3b30453f5b32250ce03134beaa6d13&quot;,&quot;old_path&quot;:&quot;CHANGELOG&quot;,&quot;new_path&quot;:&quot;CHANGELOG&quot;,&quot;position_type&quot;:&quot;text&quot;,&quot;old_line&quot;:null,&quot;new_line&quot;:2}">\n<img alt="CHANGELOG" draggable="false" src="http://localhost:3000/gitlab-org/gitlab-test/raw/c48ee0d1bf3b30453f5b32250ce03134beaa6d13/CHANGELOG" />\n</div>\n\n</div>\n<span class="swipe-bar">\n<span class="top-handle"></span>\n<span class="bottom-handle"></span>\n</span>\n</div>\n</div>\n<div class="onion-skin view hide">\n<div class="onion-skin-frame">\n<div class="frame deleted">\n<img alt="CHANGELOG" src="http://localhost:3000/gitlab-org/gitlab-test/raw/e63f41fe459e62e1228fcef60d7189127aeba95a/CHANGELOG" />\n</div>\n<div class="added frame js-image-frame" data-note-type="DiffNote" data-position="{&quot;base_sha&quot;:&quot;e63f41fe459e62e1228fcef60d7189127aeba95a&quot;,&quot;start_sha&quot;:&quot;d9eaefe5a676b820c57ff18cf5b68316025f7962&quot;,&quot;head_sha&quot;:&quot;c48ee0d1bf3b30453f5b32250ce03134beaa6d13&quot;,&quot;old_path&quot;:&quot;CHANGELOG&quot;,&quot;new_path&quot;:&quot;CHANGELOG&quot;,&quot;position_type&quot;:&quot;text&quot;,&quot;old_line&quot;:null,&quot;new_line&quot;:2}">\n<img alt="CHANGELOG" draggable="false" src="http://localhost:3000/gitlab-org/gitlab-test/raw/c48ee0d1bf3b30453f5b32250ce03134beaa6d13/CHANGELOG" />\n</div>\n\n<div class="controls">\n<div class="transparent"></div>\n<div class="drag-track">\n<div class="dragger" style="left: 0px;"></div>\n</div>\n<div class="opaque"></div>\n</div>\n</div>\n</div>\n</div>\n<div class="view-modes hide">\n<ul class="view-modes-menu">\n<li class="two-up" data-mode="two-up">2-up</li>\n<li class="swipe" data-mode="swipe">Swipe</li>\n<li class="onion-skin" data-mode="onion-skin">Onion skin</li>\n</ul>\n</div>\n',
 };
 
 export const imageDiffDiscussions = [

spec/javascripts/diffs/store/actions_spec.js

@@ -31,6 +31,7 @@ import actions, {
 import eventHub from '~/notes/event_hub';
 import * as types from '~/diffs/store/mutation_types';
 import axios from '~/lib/utils/axios_utils';
+import mockDiffFile from 'spec/diffs/mock_data/diff_file';
 import testAction from '../../helpers/vuex_action_helper';
 
 describe('DiffsStoreActions', () => {
@@ -609,11 +610,18 @@ describe('DiffsStoreActions', () => {
   });
 
   describe('saveDiffDiscussion', () => {
-    beforeEach(() => {
-      spyOnDependency(actions, 'getNoteFormData').and.returnValue('testData');
-    });
-
     it('dispatches actions', done => {
+      const commitId = 'something';
+      const formData = {
+        diffFile: { ...mockDiffFile },
+        noteableData: {},
+      };
+      const note = {};
+      const state = {
+        commit: {
+          id: commitId,
+        },
+      };
       const dispatch = jasmine.createSpy('dispatch').and.callFake(name => {
         switch (name) {
           case 'saveNote':
@@ -627,11 +635,19 @@ describe('DiffsStoreActions', () => {
         }
       });
 
-      saveDiffDiscussion({ dispatch }, { note: {}, formData: {} })
+      saveDiffDiscussion({ state, dispatch }, { note, formData })
         .then(() => {
-          expect(dispatch.calls.argsFor(0)).toEqual(['saveNote', 'testData', { root: true }]);
-          expect(dispatch.calls.argsFor(1)).toEqual(['updateDiscussion', 'test', { root: true }]);
-          expect(dispatch.calls.argsFor(2)).toEqual(['assignDiscussionsToDiff', ['discussion']]);
+          const { calls } = dispatch;
+
+          expect(calls.count()).toBe(5);
+          expect(calls.argsFor(0)).toEqual(['saveNote', jasmine.any(Object), { root: true }]);
+
+          const postData = calls.argsFor(0)[1];
+
+          expect(postData.data.note.commit_id).toBe(commitId);
+
+          expect(calls.argsFor(1)).toEqual(['updateDiscussion', 'test', { root: true }]);
+          expect(calls.argsFor(2)).toEqual(['assignDiscussionsToDiff', ['discussion']]);
         })
         .then(done)
         .catch(done.fail);

spec/javascripts/diffs/store/utils_spec.js

@@ -150,7 +150,7 @@ describe('DiffsStoreUtils', () => {
         note: {
           noteable_type: options.noteableType,
           noteable_id: options.noteableData.id,
-          commit_id: '',
+          commit_id: undefined,
           type: DIFF_NOTE_TYPE,
           line_code: options.noteTargetLine.line_code,
           note: options.note,
@@ -209,7 +209,7 @@ describe('DiffsStoreUtils', () => {
         note: {
           noteable_type: options.noteableType,
           noteable_id: options.noteableData.id,
-          commit_id: '',
+          commit_id: undefined,
           type: LEGACY_DIFF_NOTE_TYPE,
           line_code: options.noteTargetLine.line_code,
           note: options.note,

spec/javascripts/jobs/components/trigger_block_spec.js

@@ -31,8 +31,8 @@ describe('Trigger block', () => {
   });
 
   describe('with variables', () => {
-    describe('reveal variables', () => {
-      it('reveals variables on click', done => {
+    describe('hide/reveal variables', () => {
+      it('should toggle variables on click', done => {
         vm = mountComponent(Component, {
           trigger: {
             short_token: 'bd7e',
@@ -48,6 +48,10 @@ describe('Trigger block', () => {
         vm.$nextTick()
           .then(() => {
             expect(vm.$el.querySelector('.js-build-variables')).not.toBeNull();
+            expect(vm.$el.querySelector('.js-reveal-variables').textContent.trim()).toEqual(
+              'Hide values',
+            );
+
             expect(vm.$el.querySelector('.js-build-variables').textContent).toContain(
               'UPLOAD_TO_GCS',
             );
@@ -58,6 +62,26 @@ describe('Trigger block', () => {
             );
 
             expect(vm.$el.querySelector('.js-build-variables').textContent).toContain('true');
+
+            vm.$el.querySelector('.js-reveal-variables').click();
+          })
+          .then(vm.$nextTick)
+          .then(() => {
+            expect(vm.$el.querySelector('.js-reveal-variables').textContent.trim()).toEqual(
+              'Reveal values',
+            );
+
+            expect(vm.$el.querySelector('.js-build-variables').textContent).toContain(
+              'UPLOAD_TO_GCS',
+            );
+
+            expect(vm.$el.querySelector('.js-build-value').textContent).toContain('••••••');
+
+            expect(vm.$el.querySelector('.js-build-variables').textContent).toContain(
+              'UPLOAD_TO_S3',
+            );
+
+            expect(vm.$el.querySelector('.js-build-value').textContent).toContain('••••••');
           })
           .then(done)
           .catch(done.fail);

spec/lib/gitlab/branch_push_merge_commit_analyzer_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Gitlab::BranchPushMergeCommitAnalyzer do
+  let(:project) { create(:project, :repository) }
+  let(:oldrev) { 'merge-commit-analyze-before' }
+  let(:newrev) { 'merge-commit-analyze-after' }
+  let(:commits) { project.repository.commits_between(oldrev, newrev).reverse }
+
+  subject { described_class.new(commits) }
+
+  describe '#get_merge_commit' do
+    let(:expected_merge_commits) do
+      {
+        '646ece5cfed840eca0a4feb21bcd6a81bb19bda3' => '646ece5cfed840eca0a4feb21bcd6a81bb19bda3',
+        '29284d9bcc350bcae005872d0be6edd016e2efb5' => '29284d9bcc350bcae005872d0be6edd016e2efb5',
+        '5f82584f0a907f3b30cfce5bb8df371454a90051' => '29284d9bcc350bcae005872d0be6edd016e2efb5',
+        '8a994512e8c8f0dfcf22bb16df6e876be7a61036' => '29284d9bcc350bcae005872d0be6edd016e2efb5',
+        '689600b91aabec706e657e38ea706ece1ee8268f' => '29284d9bcc350bcae005872d0be6edd016e2efb5',
+        'db46a1c5a5e474aa169b6cdb7a522d891bc4c5f9' => 'db46a1c5a5e474aa169b6cdb7a522d891bc4c5f9'
+      }
+    end
+
+    it 'returns correct merge commit SHA for each commit' do
+      expected_merge_commits.each do |commit, merge_commit|
+        expect(subject.get_merge_commit(commit)).to eq(merge_commit)
+      end
+    end
+
+    context 'when one parent has two children' do
+      let(:oldrev) { '1adbdefe31288f3bbe4b614853de4908a0b6f792' }
+      let(:newrev) { '5f82584f0a907f3b30cfce5bb8df371454a90051' }
+
+      let(:expected_merge_commits) do
+        {
+          '5f82584f0a907f3b30cfce5bb8df371454a90051' => '5f82584f0a907f3b30cfce5bb8df371454a90051',
+          '8a994512e8c8f0dfcf22bb16df6e876be7a61036' => '5f82584f0a907f3b30cfce5bb8df371454a90051',
+          '689600b91aabec706e657e38ea706ece1ee8268f' => '689600b91aabec706e657e38ea706ece1ee8268f'
+        }
+      end
+
+      it 'returns correct merge commit SHA for each commit' do
+        expected_merge_commits.each do |commit, merge_commit|
+          expect(subject.get_merge_commit(commit)).to eq(merge_commit)
+        end
+      end
+    end
+
+    context 'when relevant_commit_ids is provided' do
+      let(:relevant_commit_id) { '8a994512e8c8f0dfcf22bb16df6e876be7a61036' }
+      subject { described_class.new(commits, relevant_commit_ids: [relevant_commit_id]) }
+
+      it 'returns correct merge commit' do
+        expected_merge_commits.each do |commit, merge_commit|
+          subject = described_class.new(commits, relevant_commit_ids: [commit])
+          expect(subject.get_merge_commit(commit)).to eq(merge_commit)
+        end
+      end
+    end
+  end
+end

spec/lib/gitlab/correlation_id_spec.rb

+# frozen_string_literal: true
+
+require 'fast_spec_helper'
+
+describe Gitlab::CorrelationId do
+  describe '.use_id' do
+    it 'yields when executed' do
+      expect { |blk| described_class.use_id('id', &blk) }.to yield_control
+    end
+
+    it 'stacks correlation ids' do
+      described_class.use_id('id1') do
+        described_class.use_id('id2') do |current_id|
+          expect(current_id).to eq('id2')
+        end
+      end
+    end
+
+    it 'for missing correlation id it generates random one' do
+      described_class.use_id('id1') do
+        described_class.use_id(nil) do |current_id|
+          expect(current_id).not_to be_empty
+          expect(current_id).not_to eq('id1')
+        end
+      end
+    end
+  end
+
+  describe '.current_id' do
+    subject { described_class.current_id }
+
+    it 'returns last correlation id' do
+      described_class.use_id('id1') do
+        described_class.use_id('id2') do
+          is_expected.to eq('id2')
+        end
+      end
+    end
+  end
+
+  describe '.current_or_new_id' do
+    subject { described_class.current_or_new_id }
+
+    context 'when correlation id is set' do
+      it 'returns last correlation id' do
+        described_class.use_id('id1') do
+          is_expected.to eq('id1')
+        end
+      end
+    end
+
+    context 'when correlation id is missing' do
+      it 'returns a new correlation id' do
+        expect(described_class).to receive(:new_id)
+          .and_call_original
+
+        is_expected.not_to be_empty
+      end
+    end
+  end
+
+  describe '.ids' do
+    subject { described_class.send(:ids) }
+
+    it 'returns empty list if not correlation is used' do
+      is_expected.to be_empty
+    end
+
+    it 'returns list if correlation ids are used' do
+      described_class.use_id('id1') do
+        described_class.use_id('id2') do
+          is_expected.to eq(%w(id1 id2))
+        end
+      end
+    end
+  end
+end

spec/lib/gitlab/json_logger_spec.rb

@@ -7,6 +7,10 @@ describe Gitlab::JsonLogger do
   let(:now) { Time.now }
 
   describe '#format_message' do
+    before do
+      allow(Gitlab::CorrelationId).to receive(:current_id).and_return('new-correlation-id')
+    end
+
     it 'formats strings' do
       output = subject.format_message('INFO', now, 'test', 'Hello world')
       data = JSON.parse(output)
@@ -14,6 +18,7 @@ describe Gitlab::JsonLogger do
       expect(data['severity']).to eq('INFO')
       expect(data['time']).to eq(now.utc.iso8601(3))
       expect(data['message']).to eq('Hello world')
+      expect(data['correlation_id']).to eq('new-correlation-id')
     end
 
     it 'formats hashes' do
@@ -24,6 +29,7 @@ describe Gitlab::JsonLogger do
       expect(data['time']).to eq(now.utc.iso8601(3))
       expect(data['hello']).to eq(1)
       expect(data['message']).to be_nil
+      expect(data['correlation_id']).to eq('new-correlation-id')
     end
   end
 end

spec/lib/gitlab/sentry_spec.rb

@@ -19,14 +19,15 @@ describe Gitlab::Sentry do
     end
 
     it 'raises the exception if it should' do
-      expect(described_class).to receive(:should_raise?).and_return(true)
+      expect(described_class).to receive(:should_raise_for_dev?).and_return(true)
       expect { described_class.track_exception(exception) }
         .to raise_error(RuntimeError)
     end
 
     context 'when exceptions should not be raised' do
       before do
-        allow(described_class).to receive(:should_raise?).and_return(false)
+        allow(described_class).to receive(:should_raise_for_dev?).and_return(false)
+        allow(Gitlab::CorrelationId).to receive(:current_id).and_return('cid')
       end
 
       it 'logs the exception with all attributes passed' do
@@ -35,8 +36,14 @@ describe Gitlab::Sentry do
           issue_url: 'http://gitlab.com/gitlab-org/gitlab-ce/issues/1'
         }
 
+        expected_tags = {
+          correlation_id: 'cid'
+        }
+
         expect(Raven).to receive(:capture_exception)
-                           .with(exception, extra: a_hash_including(expected_extras))
+                           .with(exception,
+                            tags: a_hash_including(expected_tags),
+                            extra: a_hash_including(expected_extras))
 
         described_class.track_exception(
           exception,
@@ -58,6 +65,7 @@ describe Gitlab::Sentry do
 
     before do
       allow(described_class).to receive(:enabled?).and_return(true)
+      allow(Gitlab::CorrelationId).to receive(:current_id).and_return('cid')
     end
 
     it 'calls Raven.capture_exception' do
@@ -66,8 +74,14 @@ describe Gitlab::Sentry do
         issue_url: 'http://gitlab.com/gitlab-org/gitlab-ce/issues/1'
       }
 
+      expected_tags = {
+        correlation_id: 'cid'
+      }
+
       expect(Raven).to receive(:capture_exception)
-                         .with(exception, extra: a_hash_including(expected_extras))
+                         .with(exception,
+                          tags: a_hash_including(expected_tags),
+                          extra: a_hash_including(expected_extras))
 
       described_class.track_acceptable_exception(
         exception,

spec/lib/gitlab/sidekiq_logging/structured_logger_spec.rb

@@ -12,7 +12,8 @@ describe Gitlab::SidekiqLogging::StructuredLogger do
         "queue_namespace" => "cronjob",
         "jid" => "da883554ee4fe414012f5f42",
         "created_at" => timestamp.to_f,
-        "enqueued_at" => timestamp.to_f
+        "enqueued_at" => timestamp.to_f,
+        "correlation_id" => 'cid'
       }
     end
     let(:logger) { double() }

spec/lib/gitlab/sidekiq_middleware/correlation_injector_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Gitlab::SidekiqMiddleware::CorrelationInjector do
+  class TestWorker
+    include ApplicationWorker
+  end
+
+  before do |example|
+    Sidekiq.client_middleware do |chain|
+      chain.add described_class
+    end
+  end
+
+  after do |example|
+    Sidekiq.client_middleware do |chain|
+      chain.remove described_class
+    end
+
+    Sidekiq::Queues.clear_all
+  end
+
+  around do |example|
+    Sidekiq::Testing.fake! do
+      example.run
+    end
+  end
+
+  it 'injects into payload the correlation id' do
+    expect_any_instance_of(described_class).to receive(:call).and_call_original
+
+    Gitlab::CorrelationId.use_id('new-correlation-id') do
+      TestWorker.perform_async(1234)
+    end
+
+    expected_job_params = {
+      "class" => "TestWorker",
+      "args" => [1234],
+      "correlation_id" => "new-correlation-id"
+    }
+
+    expect(Sidekiq::Queues.jobs_by_worker).to a_hash_including(
+      "TestWorker" => a_collection_containing_exactly(
+        a_hash_including(expected_job_params)))
+  end
+end

spec/lib/gitlab/sidekiq_middleware/correlation_logger_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Gitlab::SidekiqMiddleware::CorrelationLogger do
+  class TestWorker
+    include ApplicationWorker
+  end
+
+  before do |example|
+    Sidekiq::Testing.server_middleware do |chain|
+      chain.add described_class
+    end
+  end
+
+  after do |example|
+    Sidekiq::Testing.server_middleware do |chain|
+      chain.remove described_class
+    end
+  end
+
+  it 'injects into payload the correlation id' do
+    expect_any_instance_of(described_class).to receive(:call).and_call_original
+
+    expect_any_instance_of(TestWorker).to receive(:perform).with(1234) do
+      expect(Gitlab::CorrelationId.current_id).to eq('new-correlation-id')
+    end
+
+    Sidekiq::Client.push(
+      'queue' => 'test',
+      'class' => TestWorker,
+      'args' => [1234],
+      'correlation_id' => 'new-correlation-id')
+  end
+end

spec/models/clusters/applications/runner_spec.rb

@@ -18,7 +18,7 @@ describe Clusters::Applications::Runner do
       let(:application) { create(:clusters_applications_runner, :scheduled, version: '0.1.30') }
 
       it 'updates the application version' do
-        expect(application.reload.version).to eq('0.1.38')
+        expect(application.reload.version).to eq('0.1.39')
       end
     end
   end
@@ -46,7 +46,7 @@ describe Clusters::Applications::Runner do
     it 'should be initialized with 4 arguments' do
       expect(subject.name).to eq('runner')
       expect(subject.chart).to eq('runner/gitlab-runner')
-      expect(subject.version).to eq('0.1.38')
+      expect(subject.version).to eq('0.1.39')
       expect(subject).not_to be_rbac
       expect(subject.repository).to eq('https://charts.gitlab.io')
       expect(subject.files).to eq(gitlab_runner.files)
@@ -64,7 +64,7 @@ describe Clusters::Applications::Runner do
       let(:gitlab_runner) { create(:clusters_applications_runner, :errored, runner: ci_runner, version: '0.1.13') }
 
       it 'should be initialized with the locked version' do
-        expect(subject.version).to eq('0.1.38')
+        expect(subject.version).to eq('0.1.39')
       end
     end
   end

spec/models/commit_spec.rb

@@ -204,7 +204,7 @@ describe Commit do
       message = 'Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec sodales id felis id blandit. Vivamus egestas lacinia lacus, sed rutrum mauris.'
 
       allow(commit).to receive(:safe_message).and_return(message)
-      expect(commit.title).to eq('Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec sodales id felis…')
+      expect(commit.title).to eq('Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec sodales id...')
     end
 
     it "truncates a message with a newline before 80 characters at the newline" do

spec/models/concerns/discussion_on_diff_spec.rb

@@ -12,6 +12,34 @@ describe DiscussionOnDiff do
 
         expect(truncated_lines.count).to be <= DiffDiscussion::NUMBER_OF_TRUNCATED_DIFF_LINES
       end
+
+      context 'with truncated diff lines diff limit set' do
+        let(:truncated_lines) do
+          subject.truncated_diff_lines(
+            diff_limit: diff_limit
+          )
+        end
+
+        context 'when diff limit is higher than default' do
+          let(:diff_limit) { DiffDiscussion::NUMBER_OF_TRUNCATED_DIFF_LINES + 1 }
+
+          it 'returns fewer lines than the default' do
+            expect(subject.diff_lines.count).to be > diff_limit
+
+            expect(truncated_lines.count).to be <= DiffDiscussion::NUMBER_OF_TRUNCATED_DIFF_LINES
+          end
+        end
+
+        context 'when diff_limit is lower than default' do
+          let(:diff_limit) { 3 }
+
+          it 'returns fewer lines than the default' do
+            expect(subject.diff_lines.count).to be > DiffDiscussion::NUMBER_OF_TRUNCATED_DIFF_LINES
+
+            expect(truncated_lines.count).to be <= diff_limit
+          end
+        end
+      end
     end
 
     context "when some diff lines are meta" do

spec/models/namespace_spec.rb

@@ -249,7 +249,7 @@ describe Namespace do
 
               move_dir_result
             end
-            expect(Gitlab::Sentry).to receive(:should_raise?).and_return(false) # like prod
+            expect(Gitlab::Sentry).to receive(:should_raise_for_dev?).and_return(false) # like prod
 
             namespace.update(path: namespace.full_path + '_new')
           end

spec/requests/api/helpers_spec.rb

@@ -5,7 +5,6 @@ require_relative '../../../config/initializers/sentry'
 describe API::Helpers do
   include API::APIGuard::HelperMethods
   include described_class
-  include SentryHelper
   include TermsHelper
 
   let(:user) { create(:user) }
@@ -272,8 +271,15 @@ describe API::Helpers do
 
   describe '.handle_api_exception' do
     before do
-      allow_any_instance_of(self.class).to receive(:sentry_enabled?).and_return(true)
       allow_any_instance_of(self.class).to receive(:rack_response)
+      allow(Gitlab::Sentry).to receive(:enabled?).and_return(true)
+
+      stub_application_setting(
+        sentry_enabled: true,
+        sentry_dsn: "dummy://12345:67890@sentry.localdomain/sentry/42"
+      )
+      configure_sentry
+      Raven.client.configuration.encoding = 'json'
     end
 
     it 'does not report a MethodNotAllowed exception to Sentry' do
@@ -289,10 +295,13 @@ describe API::Helpers do
       exception = RuntimeError.new('test error')
       allow(exception).to receive(:backtrace).and_return(caller)
 
-      expect_any_instance_of(self.class).to receive(:sentry_context)
-      expect(Raven).to receive(:capture_exception).with(exception, extra: {})
+      expect(Raven).to receive(:capture_exception).with(exception, tags: {
+        correlation_id: 'new-correlation-id'
+      }, extra: {})
 
-      handle_api_exception(exception)
+      Gitlab::CorrelationId.use_id('new-correlation-id') do
+        handle_api_exception(exception)
+      end
     end
 
     context 'with a personal access token given' do
@@ -303,7 +312,6 @@ describe API::Helpers do
         # We need to stub at a lower level than #sentry_enabled? otherwise
         # Sentry is not enabled when the request below is made, and the test
         # would pass even without the fix
-        expect(Gitlab::Sentry).to receive(:enabled?).twice.and_return(true)
         expect(ProjectsFinder).to receive(:new).and_raise('Runtime Error!')
 
         get api('/projects', personal_access_token: token)
@@ -320,17 +328,7 @@ describe API::Helpers do
       # Sentry events are an array of the form [auth_header, data, options]
       let(:event_data) { Raven.client.transport.events.first[1] }
 
-      before do
-        stub_application_setting(
-          sentry_enabled: true,
-          sentry_dsn: "dummy://12345:67890@sentry.localdomain/sentry/42"
-        )
-        configure_sentry
-        Raven.client.configuration.encoding = 'json'
-      end
-
       it 'sends the params, excluding confidential values' do
-        expect(Gitlab::Sentry).to receive(:enabled?).twice.and_return(true)
         expect(ProjectsFinder).to receive(:new).and_raise('Runtime Error!')
 
         get api('/projects', user), password: 'dont_send_this', other_param: 'send_this'

spec/serializers/diff_file_entity_spec.rb

@@ -13,39 +13,6 @@ describe DiffFileEntity do
 
   subject { entity.as_json }
 
-  shared_examples 'diff file entity' do
-    it 'exposes correct attributes' do
-      expect(subject).to include(
-        :submodule, :submodule_link, :submodule_tree_url, :file_path,
-        :deleted_file, :old_path, :new_path, :mode_changed,
-        :a_mode, :b_mode, :text, :old_path_html,
-        :new_path_html, :highlighted_diff_lines, :parallel_diff_lines,
-        :blob, :file_hash, :added_lines, :removed_lines, :diff_refs, :content_sha,
-        :stored_externally, :external_storage, :too_large, :collapsed, :new_file,
-        :context_lines_path
-      )
-    end
-
-    it 'includes viewer' do
-      expect(subject[:viewer].with_indifferent_access)
-          .to match_schema('entities/diff_viewer')
-    end
-
-    # Converted diff files from GitHub import does not contain blob file
-    # and content sha.
-    context 'when diff file does not have a blob and content sha' do
-      it 'exposes some attributes as nil' do
-        allow(diff_file).to receive(:content_sha).and_return(nil)
-        allow(diff_file).to receive(:blob).and_return(nil)
-
-        expect(subject[:context_lines_path]).to be_nil
-        expect(subject[:view_path]).to be_nil
-        expect(subject[:highlighted_diff_lines]).to be_nil
-        expect(subject[:can_modify_blob]).to be_nil
-      end
-    end
-  end
-
   context 'when there is no merge request' do
     it_behaves_like 'diff file entity'
   end

spec/serializers/discussion_diff_file_entity_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe DiscussionDiffFileEntity do
+  include RepoHelpers
+
+  let(:project) { create(:project, :repository) }
+  let(:repository) { project.repository }
+  let(:commit) { project.commit(sample_commit.id) }
+  let(:diff_refs) { commit.diff_refs }
+  let(:diff) { commit.raw_diffs.first }
+  let(:diff_file) { Gitlab::Diff::File.new(diff, diff_refs: diff_refs, repository: repository) }
+  let(:entity) { described_class.new(diff_file, request: {}) }
+
+  subject { entity.as_json }
+
+  context 'when there is no merge request' do
+    it_behaves_like 'diff file discussion entity'
+  end
+
+  context 'when there is a merge request' do
+    let(:user) { create(:user) }
+    let(:request) { EntityRequest.new(project: project, current_user: user) }
+    let(:merge_request) { create(:merge_request, source_project: project, target_project: project) }
+    let(:entity) { described_class.new(diff_file, request: request, merge_request: merge_request) }
+
+    it_behaves_like 'diff file discussion entity'
+
+    it 'exposes additional attributes' do
+      expect(subject).to include(:edit_path)
+    end
+
+    it 'exposes no diff lines' do
+      expect(subject).not_to include(:highlighted_diff_lines,
+                                     :parallel_diff_lines)
+    end
+  end
+end

spec/serializers/discussion_entity_spec.rb

@@ -74,13 +74,5 @@ describe DiscussionEntity do
         :active
       )
     end
-
-    context 'when diff file is a image' do
-      it 'exposes image attributes' do
-        allow(discussion).to receive(:on_image?).and_return(true)
-
-        expect(subject.keys).to include(:image_diff_html)
-      end
-    end
   end
 end

spec/serializers/trigger_variable_entity_spec.rb

+require 'spec_helper'
+
+describe TriggerVariableEntity do
+  let(:project) { create(:project) }
+  let(:request) { double('request') }
+  let(:user) { create(:user) }
+  let(:variable) { { key: 'TEST_KEY', value: 'TEST_VALUE' } }
+
+  subject { described_class.new(variable, request: request).as_json }
+
+  before do
+    allow(request).to receive(:current_user).and_return(user)
+    allow(request).to receive(:project).and_return(project)
+  end
+
+  it 'exposes the variable key' do
+    expect(subject).to include(:key)
+  end
+
+  context 'when user has access to the value' do
+    context 'when user is maintainer' do
+      before do
+        project.team.add_maintainer(user)
+      end
+
+      it 'exposes the variable value' do
+        expect(subject).to include(:value)
+      end
+    end
+
+    context 'when user is owner' do
+      let(:user) { project.owner }
+
+      it 'exposes the variable value' do
+        expect(subject).to include(:value)
+      end
+    end
+  end
+
+  context 'when user does not have access to the value' do
+    before do
+      project.team.add_developer(user)
+    end
+
+    it 'does not expose the variable value' do
+      expect(subject).not_to include(:value)
+    end
+  end
+end

spec/services/clusters/applications/create_service_spec.rb

@@ -31,6 +31,31 @@ describe Clusters::Applications::CreateService do
       subject
     end
 
+    context 'cert manager application' do
+      let(:params) do
+        {
+          application: 'cert_manager',
+          email: 'test@example.com'
+        }
+      end
+
+      before do
+        allow_any_instance_of(Clusters::Applications::ScheduleInstallationService).to receive(:execute)
+      end
+
+      it 'creates the application' do
+        expect do
+          subject
+
+          cluster.reload
+        end.to change(cluster, :application_cert_manager)
+      end
+
+      it 'sets the email' do
+        expect(subject.email).to eq('test@example.com')
+      end
+    end
+
     context 'jupyter application' do
       let(:params) do
         {

spec/services/merge_requests/refresh_service_spec.rb

@@ -715,4 +715,77 @@ describe MergeRequests::RefreshService do
       @fork_build_failed_todo.reload
     end
   end
+
+  describe 'updating merge_commit' do
+    let(:service) { described_class.new(project, user) }
+    let(:user) { create(:user) }
+    let(:project) { create(:project, :repository) }
+
+    let(:oldrev) { TestEnv::BRANCH_SHA['merge-commit-analyze-before'] }
+    let(:newrev) { TestEnv::BRANCH_SHA['merge-commit-analyze-after'] } # Pretend branch is now updated
+
+    let!(:merge_request) do
+      create(
+        :merge_request,
+        source_project: project,
+        source_branch: 'merge-commit-analyze-after',
+        target_branch: 'merge-commit-analyze-before',
+        target_project: project,
+        merge_user: user
+      )
+    end
+
+    let!(:merge_request_side_branch) do
+      create(
+        :merge_request,
+        source_project: project,
+        source_branch: 'merge-commit-analyze-side-branch',
+        target_branch: 'merge-commit-analyze-before',
+        target_project: project,
+        merge_user: user
+      )
+    end
+
+    subject { service.execute(oldrev, newrev, 'refs/heads/merge-commit-analyze-before') }
+
+    context 'feature enabled' do
+      before do
+        stub_feature_flags(branch_push_merge_commit_analyze: true)
+      end
+
+      it "updates merge requests' merge_commits" do
+        expect(Gitlab::BranchPushMergeCommitAnalyzer).to receive(:new).and_wrap_original do |original_method, commits|
+          expect(commits.map(&:id)).to eq(%w{646ece5cfed840eca0a4feb21bcd6a81bb19bda3 29284d9bcc350bcae005872d0be6edd016e2efb5 5f82584f0a907f3b30cfce5bb8df371454a90051 8a994512e8c8f0dfcf22bb16df6e876be7a61036 689600b91aabec706e657e38ea706ece1ee8268f db46a1c5a5e474aa169b6cdb7a522d891bc4c5f9})
+
+          original_method.call(commits)
+        end
+
+        subject
+
+        merge_request.reload
+        merge_request_side_branch.reload
+
+        expect(merge_request.merge_commit.id).to eq('646ece5cfed840eca0a4feb21bcd6a81bb19bda3')
+        expect(merge_request_side_branch.merge_commit.id).to eq('29284d9bcc350bcae005872d0be6edd016e2efb5')
+      end
+    end
+
+    context 'when feature is disabled' do
+      before do
+        stub_feature_flags(branch_push_merge_commit_analyze: false)
+      end
+
+      it "does not trigger analysis" do
+        expect(Gitlab::BranchPushMergeCommitAnalyzer).not_to receive(:new)
+
+        subject
+
+        merge_request.reload
+        merge_request_side_branch.reload
+
+        expect(merge_request.merge_commit).to eq(nil)
+        expect(merge_request_side_branch.merge_commit).to eq(nil)
+      end
+    end
+  end
 end

spec/support/helpers/test_env.rb

@@ -54,6 +54,9 @@ module TestEnv
     'add_images_and_changes'             => '010d106',
     'update-gitlab-shell-v-6-0-1'        => '2f61d70',
     'update-gitlab-shell-v-6-0-3'        => 'de78448',
+    'merge-commit-analyze-before'        => '1adbdef',
+    'merge-commit-analyze-side-branch'   => '8a99451',
+    'merge-commit-analyze-after'         => '646ece5',
     '2-mb-file'                          => 'bf12d25',
     'before-create-delete-modify-move'   => '845009f',
     'between-create-delete-modify-move'  => '3f5f443',

spec/support/shared_examples/serializers/diff_file_entity_examples.rb

+# frozen_string_literal: true
+
+shared_examples 'diff file base entity' do
+  it 'exposes essential attributes' do
+    expect(subject).to include(:content_sha, :submodule, :submodule_link,
+                               :submodule_tree_url, :old_path_html,
+                               :new_path_html, :blob, :can_modify_blob,
+                               :file_hash, :file_path, :old_path, :new_path,
+                               :collapsed, :text, :diff_refs, :stored_externally,
+                               :external_storage, :renamed_file, :deleted_file,
+                               :mode_changed, :a_mode, :b_mode, :new_file)
+  end
+
+  # Converted diff files from GitHub import does not contain blob file
+  # and content sha.
+  context 'when diff file does not have a blob and content sha' do
+    it 'exposes some attributes as nil' do
+      allow(diff_file).to receive(:content_sha).and_return(nil)
+      allow(diff_file).to receive(:blob).and_return(nil)
+
+      expect(subject[:context_lines_path]).to be_nil
+      expect(subject[:view_path]).to be_nil
+      expect(subject[:highlighted_diff_lines]).to be_nil
+      expect(subject[:can_modify_blob]).to be_nil
+    end
+  end
+end
+
+shared_examples 'diff file entity' do
+  it_behaves_like 'diff file base entity'
+
+  it 'exposes correct attributes' do
+    expect(subject).to include(:too_large, :added_lines, :removed_lines,
+                               :context_lines_path, :highlighted_diff_lines,
+                               :parallel_diff_lines)
+  end
+
+  it 'includes viewer' do
+    expect(subject[:viewer].with_indifferent_access)
+        .to match_schema('entities/diff_viewer')
+  end
+end
+
+shared_examples 'diff file discussion entity' do
+  it_behaves_like 'diff file base entity'
+end