Merge branch 'master' into 39957-redirect-to-gpc-page-if-users-try-to-create-a-cluster-but-the-account-is-not-enabled

2018-01-05 20:04:33 +01:00 · 2018-01-05 20:04:33 +01:00 · b058af1be6
commit b058af1be6
parent 12984a7302 3d162d192b
175 changed files with 2889 additions and 755 deletions
--- a/Gemfile.lock
+++ b/Gemfile.lock
@ -718,7 +718,7 @@ GEM
      redis-store (>= 1.3, < 2)
    redis-namespace (1.5.2)
      redis (~> 3.0, >= 3.0.4)
-    redis-rack (2.0.3)
+    redis-rack (2.0.4)
      rack (>= 1.5, < 3)
      redis-store (>= 1.2, < 2)
    redis-rails (5.0.2)
--- a/app/assets/javascripts/behaviors/copy_as_gfm.js
+++ b/app/assets/javascripts/behaviors/copy_as_gfm.js
@ -74,6 +74,18 @@ const gfmRules = {
      return `![${el.dataset.title}](${el.getAttribute('src')})`;
    },
  },
+  MermaidFilter: {
+    'svg.mermaid'(el, text) {
+      const sourceEl = el.querySelector('text.source');
+      if (!sourceEl) return false;
+
+      return `\`\`\`mermaid\n${CopyAsGFM.nodeToGFM(sourceEl)}\n\`\`\``;
+    },
+    'svg.mermaid style, svg.mermaid g'(el, text) {
+      // We don't want to include the content of these elements in the copied text.
+      return '';
+    },
+  },
  MathFilter: {
    'pre.code.math[data-math-style=display]'(el, text) {
      return `\`\`\`math\n${text.trim()}\n\`\`\``;
--- a/app/assets/javascripts/create_merge_request_dropdown.js
+++ b/app/assets/javascripts/create_merge_request_dropdown.js
@ -276,13 +276,13 @@ export default class CreateMergeRequestDropdown {
    let target;
    let value;

-    if (event.srcElement === this.branchInput) {
+    if (event.target === this.branchInput) {
      target = 'branch';
      value = this.branchInput.value;
-    } else if (event.srcElement === this.refInput) {
+    } else if (event.target === this.refInput) {
      target = 'ref';
-      value = event.srcElement.value.slice(0, event.srcElement.selectionStart) +
-        event.srcElement.value.slice(event.srcElement.selectionEnd);
+      value = event.target.value.slice(0, event.target.selectionStart) +
+        event.target.value.slice(event.target.selectionEnd);
    } else {
      return false;
    }
--- a/app/assets/javascripts/groups/components/item_actions.vue
+++ b/app/assets/javascripts/groups/components/item_actions.vue
@ -45,11 +45,9 @@ export default {
    onLeaveGroup() {
      this.modalStatus = true;
    },
-    leaveGroup(leaveConfirmed) {
+    leaveGroup() {
      this.modalStatus = false;
-      if (leaveConfirmed) {
-        eventHub.$emit('leaveGroup', this.group, this.parentGroup);
-      }
+      eventHub.$emit('leaveGroup', this.group, this.parentGroup);
    },
  },
 };
--- a/app/assets/javascripts/groups/components/item_stats.vue
+++ b/app/assets/javascripts/groups/components/item_stats.vue
@ -42,28 +42,28 @@ export default {
      v-if="isGroup"
      css-class="number-subgroups"
      icon-name="folder"
-      :title="s__('Subgroups')"
-      :value=item.subgroupCount
+      :title="__('Subgroups')"
+      :value="item.subgroupCount"
    />
    <item-stats-value
      v-if="isGroup"
      css-class="number-projects"
      icon-name="bookmark"
-      :title="s__('Projects')"
-      :value=item.projectCount
+      :title="__('Projects')"
+      :value="item.projectCount"
    />
    <item-stats-value
      v-if="isGroup"
      css-class="number-users"
      icon-name="users"
-      :title="s__('Members')"
-      :value=item.memberCount
+      :title="__('Members')"
+      :value="item.memberCount"
    />
    <item-stats-value
      v-if="isProject"
      css-class="project-stars"
      icon-name="star"
-      :value=item.starCount
+      :value="item.starCount"
    />
    <item-stats-value
      css-class="item-visibility"
--- a/app/assets/javascripts/ide/components/new_dropdown/index.vue
+++ b/app/assets/javascripts/ide/components/new_dropdown/index.vue
@ -32,10 +32,10 @@
    methods: {
      createNewItem(type) {
        this.modalType = type;
-        this.toggleModalOpen();
+        this.openModal = true;
      },
-      toggleModalOpen() {
-        this.openModal = !this.openModal;
+      hideModal() {
+        this.openModal = false;
      },
    },
  };
@ -95,7 +95,7 @@
      :branch-id="branch"
      :path="path"
      :parent="parent"
-      @toggle="toggleModalOpen"
+      @hide="hideModal"
    />
  </div>
 </template>
--- a/app/assets/javascripts/ide/components/new_dropdown/modal.vue
+++ b/app/assets/javascripts/ide/components/new_dropdown/modal.vue
@ -43,10 +43,10 @@
          type: this.type,
        });

-        this.toggleModalOpen();
+        this.hideModal();
      },
-      toggleModalOpen() {
-        this.$emit('toggle');
+      hideModal() {
+        this.$emit('hide');
      },
    },
    computed: {
@ -86,7 +86,7 @@
    :title="modalTitle"
    :primary-button-label="buttonLabel"
    kind="success"
-    @toggle="toggleModalOpen"
+    @cancel="hideModal"
    @submit="createEntryInStore"
  >
    <form
--- a/app/assets/javascripts/ide/components/repo_commit_section.vue
+++ b/app/assets/javascripts/ide/components/repo_commit_section.vue
@ -110,7 +110,7 @@ export default {
    kind="primary"
    :title="__('Branch has changed')"
    :text="__('This branch has changed since you started editing. Would you like to create a new branch?')"
-    @toggle="showNewBranchModal = false"
+    @cancel="showNewBranchModal = false"
    @submit="makeCommit(true)"
  />
  <commit-files-list
--- a/app/assets/javascripts/ide/components/repo_edit_button.vue
+++ b/app/assets/javascripts/ide/components/repo_edit_button.vue
@ -50,7 +50,7 @@ export default {
      kind="warning"
      :title="__('Are you sure?')"
      :text="__('Are you sure you want to discard your changes?')"
-      @toggle="closeDiscardPopup"
+      @cancel="closeDiscardPopup"
      @submit="toggleEditMode(true)"
    />
  </div>
--- a/app/assets/javascripts/lib/utils/text_utility.js
+++ b/app/assets/javascripts/lib/utils/text_utility.js
@ -64,3 +64,12 @@ export const truncate = (string, maxLength) => `${string.substr(0, (maxLength -
 export function capitalizeFirstCharacter(text) {
  return `${text[0].toUpperCase()}${text.slice(1)}`;
 }
+
+/**
+ * Replaces all html tags from a string with the given replacement.
+ *
+ * @param {String} string
+ * @param {*} replace
+ * @returns {String}
+ */
+export const stripeHtml = (string, replace = '') => string.replace(/<[^>]*>/g, replace);
--- a/app/assets/javascripts/profile/account/components/delete_account_modal.vue
+++ b/app/assets/javascripts/profile/account/components/delete_account_modal.vue
@ -1,7 +1,7 @@
 <script>
-  import modal from '../../../vue_shared/components/modal.vue';
-  import { __, s__, sprintf } from '../../../locale';
-  import csrf from '../../../lib/utils/csrf';
+  import modal from '~/vue_shared/components/modal.vue';
+  import { __, s__, sprintf } from '~/locale';
+  import csrf from '~/lib/utils/csrf';

  export default {
    props: {
@ -22,7 +22,6 @@
      return {
        enteredPassword: '',
        enteredUsername: '',
-        isOpen: false,
      };
    },
    components: {
@ -69,78 +68,58 @@ Once you confirm %{deleteAccount}, it cannot be undone or recovered.`),

        return this.enteredUsername === this.username;
      },
-      onSubmit(status) {
-        if (status) {
-          if (!this.canSubmit()) {
-            return;
-          }
-
-          this.$refs.form.submit();
-        }
-
-        this.toggleOpen(false);
-      },
-      toggleOpen(isOpen) {
-        this.isOpen = isOpen;
+      onSubmit() {
+        this.$refs.form.submit();
      },
    },
  };
 </script>

 <template>
-  <div>
-    <modal
-      v-if="isOpen"
-      :title="s__('Profiles|Delete your account?')"
-      :text="text"
-      :kind="`danger ${!canSubmit() && 'disabled'}`"
-      :primary-button-label="s__('Profiles|Delete account')"
-      @toggle="toggleOpen"
-      @submit="onSubmit">
+  <modal
+    id="delete-account-modal"
+    :title="s__('Profiles|Delete your account?')"
+    :text="text"
+    kind="danger"
+    :primary-button-label="s__('Profiles|Delete account')"
+    @submit="onSubmit"
+    :submit-disabled="!canSubmit()">

-      <template slot="body" slot-scope="props">
-        <p v-html="props.text"></p>
+    <template slot="body" slot-scope="props">
+      <p v-html="props.text"></p>

-        <form
-          ref="form"
-          :action="actionUrl"
-          method="post">
+      <form
+        ref="form"
+        :action="actionUrl"
+        method="post">

-          <input
-            type="hidden"
-            name="_method"
-            value="delete" />
-          <input
-            type="hidden"
-            name="authenticity_token"
-            :value="csrfToken" />
+        <input
+          type="hidden"
+          name="_method"
+          value="delete" />
+        <input
+          type="hidden"
+          name="authenticity_token"
+          :value="csrfToken" />

-          <p id="input-label" v-html="inputLabel"></p>
+        <p id="input-label" v-html="inputLabel"></p>

-          <input
-            v-if="confirmWithPassword"
-            name="password"
-            class="form-control"
-            type="password"
-            v-model="enteredPassword"
-            aria-labelledby="input-label" />
-          <input
-            v-else
-            name="username"
-            class="form-control"
-            type="text"
-            v-model="enteredUsername"
-            aria-labelledby="input-label" />
-        </form>
-      </template>
+        <input
+          v-if="confirmWithPassword"
+          name="password"
+          class="form-control"
+          type="password"
+          v-model="enteredPassword"
+          aria-labelledby="input-label" />
+        <input
+          v-else
+          name="username"
+          class="form-control"
+          type="text"
+          v-model="enteredUsername"
+          aria-labelledby="input-label" />
+      </form>
+    </template>

-    </modal>
-
-    <button
-      type="button"
-      class="btn btn-danger"
-      @click="toggleOpen(true)">
-      {{ s__('Profiles|Delete account') }}
-    </button>
-  </div>
+  </modal>
 </template>
--- a/app/assets/javascripts/profile/account/index.js
+++ b/app/assets/javascripts/profile/account/index.js
@ -1,7 +1,12 @@
 import Vue from 'vue';

+import Translate from '~/vue_shared/translate';
+
 import deleteAccountModal from './components/delete_account_modal.vue';

+Vue.use(Translate);
+
+const deleteAccountButton = document.getElementById('delete-account-button');
 const deleteAccountModalEl = document.getElementById('delete-account-modal');
 // eslint-disable-next-line no-new
 new Vue({
@ -9,6 +14,9 @@ new Vue({
  components: {
    deleteAccountModal,
  },
+  mounted() {
+    deleteAccountButton.classList.remove('disabled');
+  },
  render(createElement) {
    return createElement('delete-account-modal', {
      props: {
--- a/app/assets/javascripts/projects/project_new.js
+++ b/app/assets/javascripts/projects/project_new.js
@ -1,6 +1,7 @@
 let hasUserDefinedProjectPath = false;

-const deriveProjectPathFromUrl = ($projectImportUrl, $projectPath) => {
+const deriveProjectPathFromUrl = ($projectImportUrl) => {
+  const $currentProjectPath = $projectImportUrl.parents('.toggle-import-form').find('#project_path');
  if (hasUserDefinedProjectPath) {
    return;
  }
@ -21,7 +22,7 @@ const deriveProjectPathFromUrl = ($projectImportUrl, $projectPath) => {
  // extract everything after the last slash
  const pathMatch = /\/([^/]+)$/.exec(importUrl);
  if (pathMatch) {
-    $projectPath.val(pathMatch[1]);
+    $currentProjectPath.val(pathMatch[1]);
  }
 };

@ -96,7 +97,7 @@ const bindEvents = () => {
    hasUserDefinedProjectPath = $projectPath.val().trim().length > 0;
  });

-  $projectImportUrl.keyup(() => deriveProjectPathFromUrl($projectImportUrl, $projectPath));
+  $projectImportUrl.keyup(() => deriveProjectPathFromUrl($projectImportUrl));
 };

 document.addEventListener('DOMContentLoaded', bindEvents);
--- a/app/assets/javascripts/render_mermaid.js
+++ b/app/assets/javascripts/render_mermaid.js
@ -24,7 +24,25 @@ export default function renderMermaid($els) {
    });

    $els.each((i, el) => {
-      mermaid.init(undefined, el);
+      const source = el.textContent;
+
+      mermaid.init(undefined, el, (id) => {
+        const svg = document.getElementById(id);
+
+        svg.classList.add('mermaid');
+
+        // pre > code > svg
+        svg.closest('pre').replaceWith(svg);
+
+        // We need to add the original source into the DOM to allow Copy-as-GFM
+        // to access it.
+        const sourceEl = document.createElement('text');
+        sourceEl.classList.add('source');
+        sourceEl.setAttribute('display', 'none');
+        sourceEl.textContent = source;
+
+        svg.appendChild(sourceEl);
+      });
    });
  }).catch((err) => {
    Flash(`Can't load mermaid module: ${err}`);
--- a/app/assets/javascripts/vue_merge_request_widget/components/states/mr_widget_rebase.vue
+++ b/app/assets/javascripts/vue_merge_request_widget/components/states/mr_widget_rebase.vue
@ -0,0 +1,133 @@
+<script>
+  import simplePoll from '../../../lib/utils/simple_poll';
+  import eventHub from '../../event_hub';
+  import statusIcon from '../mr_widget_status_icon';
+  import loadingIcon from '../../../vue_shared/components/loading_icon.vue';
+  import Flash from '../../../flash';
+
+  export default {
+    name: 'MRWidgetRebase',
+    props: {
+      mr: {
+        type: Object,
+        required: true,
+      },
+      service: {
+        type: Object,
+        required: true,
+      },
+    },
+    components: {
+      statusIcon,
+      loadingIcon,
+    },
+    data() {
+      return {
+        isMakingRequest: false,
+        rebasingError: null,
+      };
+    },
+    computed: {
+      status() {
+        if (this.mr.rebaseInProgress || this.isMakingRequest) {
+          return 'loading';
+        }
+        if (!this.mr.canPushToSourceBranch && !this.mr.rebaseInProgress) {
+          return 'warning';
+        }
+        return 'success';
+      },
+      showDisabledButton() {
+        return ['failed', 'loading'].includes(this.status);
+      },
+    },
+    methods: {
+      rebase() {
+        this.isMakingRequest = true;
+        this.rebasingError = null;
+
+        this.service.rebase()
+          .then(() => {
+            simplePoll(this.checkRebaseStatus);
+          })
+          .catch((error) => {
+            this.rebasingError = error.merge_error;
+            this.isMakingRequest = false;
+            Flash('Something went wrong. Please try again.');
+          });
+      },
+      checkRebaseStatus(continuePolling, stopPolling) {
+        this.service.poll()
+          .then(res => res.data)
+          .then((res) => {
+            if (res.rebase_in_progress) {
+              continuePolling();
+            } else {
+              this.isMakingRequest = false;
+
+              if (res.merge_error && res.merge_error.length) {
+                this.rebasingError = res.merge_error;
+                Flash('Something went wrong. Please try again.');
+              }
+
+              eventHub.$emit('MRWidgetUpdateRequested');
+              stopPolling();
+            }
+          })
+          .catch(() => {
+            this.isMakingRequest = false;
+            Flash('Something went wrong. Please try again.');
+            stopPolling();
+          });
+      },
+    },
+  };
+</script>
+<template>
+  <div class="mr-widget-body media">
+    <status-icon
+      :status="status"
+      :show-disabled-button="showDisabledButton"
+      />
+
+    <div class="rebase-state-find-class-convention media media-body space-children">
+      <template v-if="mr.rebaseInProgress || isMakingRequest">
+        <span class="bold">
+          Rebase in progress
+        </span>
+      </template>
+      <template v-if="!mr.rebaseInProgress && !mr.canPushToSourceBranch">
+        <span class="bold">
+          Fast-forward merge is not possible.
+          Rebase the source branch onto
+          <span class="label-branch">{{mr.targetBranch}}</span>
+          to allow this merge request to be merged.
+        </span>
+      </template>
+      <template v-if="!mr.rebaseInProgress && mr.canPushToSourceBranch && !isMakingRequest">
+        <div class="accept-merge-holder clearfix js-toggle-container accept-action media space-children">
+          <button
+            type="button"
+            class="btn btn-sm btn-reopen btn-success"
+            :disabled="isMakingRequest"
+            @click="rebase">
+            <loading-icon v-if="isMakingRequest" />
+            Rebase
+          </button>
+          <span
+            v-if="!rebasingError"
+            class="bold">
+            Fast-forward merge is not possible.
+            Rebase the source branch onto the target branch or merge target
+            branch into source branch to allow this merge request to be merged.
+          </span>
+          <span
+            v-else
+            class="bold danger">
+            {{rebasingError}}
+          </span>
+        </div>
+      </template>
+    </div>
+  </div>
+</template>
--- a/app/assets/javascripts/vue_merge_request_widget/dependencies.js
+++ b/app/assets/javascripts/vue_merge_request_widget/dependencies.js
@ -32,6 +32,7 @@ export { default as UnresolvedDiscussionsState } from './components/states/mr_wi
 export { default as PipelineBlockedState } from './components/states/mr_widget_pipeline_blocked';
 export { default as PipelineFailedState } from './components/states/mr_widget_pipeline_failed';
 export { default as MergeWhenPipelineSucceedsState } from './components/states/mr_widget_merge_when_pipeline_succeeds';
+export { default as RebaseState } from './components/states/mr_widget_rebase.vue';
 export { default as AutoMergeFailed } from './components/states/mr_widget_auto_merge_failed';
 export { default as CheckingState } from './components/states/mr_widget_checking';
 export { default as MRWidgetStore } from './stores/mr_widget_store';
--- a/app/assets/javascripts/vue_merge_request_widget/mr_widget_options.js
+++ b/app/assets/javascripts/vue_merge_request_widget/mr_widget_options.js
@ -10,6 +10,7 @@ import {
  MergedState,
  ClosedState,
  MergingState,
+  RebaseState,
  WipState,
  ArchivedState,
  ConflictsState,
@ -79,6 +80,7 @@ export default {
        ciEnvironmentsStatusPath: store.ciEnvironmentsStatusPath,
        statusPath: store.statusPath,
        mergeActionsContentPath: store.mergeActionsContentPath,
+        rebasePath: store.rebasePath,
      };
      return new MRWidgetService(endpoints);
    },
@ -232,6 +234,7 @@ export default {
    'mr-widget-pipeline-failed': PipelineFailedState,
    'mr-widget-merge-when-pipeline-succeeds': MergeWhenPipelineSucceedsState,
    'mr-widget-auto-merge-failed': AutoMergeFailed,
+    'mr-widget-rebase': RebaseState,
  },
  template: `
    <div class="mr-state-widget prepend-top-default">
--- a/app/assets/javascripts/vue_merge_request_widget/services/mr_widget_service.js
+++ b/app/assets/javascripts/vue_merge_request_widget/services/mr_widget_service.js
@ -37,6 +37,10 @@ export default class MRWidgetService {
    return axios.get(this.endpoints.mergeActionsContentPath);
  }

+  rebase() {
+    return axios.post(this.endpoints.rebasePath);
+  }
+
  static stopEnvironment(url) {
    return axios.post(url);
  }
--- a/app/assets/javascripts/vue_merge_request_widget/stores/get_state_key.js
+++ b/app/assets/javascripts/vue_merge_request_widget/stores/get_state_key.js
@ -25,6 +25,8 @@ export default function deviseState(data) {
    return this.mergeError ? stateKey.autoMergeFailed : stateKey.mergeWhenPipelineSucceeds;
  } else if (!this.canMerge) {
    return stateKey.notAllowedToMerge;
+  } else if (this.shouldBeRebased) {
+    return stateKey.rebase;
  } else if (this.canBeMerged) {
    return stateKey.readyToMerge;
  }
--- a/app/assets/javascripts/vue_merge_request_widget/stores/mr_widget_store.js
+++ b/app/assets/javascripts/vue_merge_request_widget/stores/mr_widget_store.js
@ -26,6 +26,7 @@ export default class MergeRequestStore {
    this.divergedCommitsCount = data.diverged_commits_count;
    this.pipeline = data.pipeline || {};
    this.deployments = this.deployments || data.deployments || [];
+    this.initRebase(data);

    if (data.issues_links) {
      const links = data.issues_links;
@ -124,6 +125,13 @@ export default class MergeRequestStore {
    return this.state === stateKey.nothingToMerge;
  }

+  initRebase(data) {
+    this.canPushToSourceBranch = data.can_push_to_source_branch;
+    this.rebaseInProgress = data.rebase_in_progress;
+    this.approvalsLeft = !data.approved;
+    this.rebasePath = data.rebase_path;
+  }
+
  static buildMetrics(metrics) {
    if (!metrics) {
      return {};
--- a/app/assets/javascripts/vue_merge_request_widget/stores/state_maps.js
+++ b/app/assets/javascripts/vue_merge_request_widget/stores/state_maps.js
@ -17,6 +17,7 @@ const stateToComponentMap = {
  failedToMerge: 'mr-widget-failed-to-merge',
  autoMergeFailed: 'mr-widget-auto-merge-failed',
  shaMismatch: 'mr-widget-sha-mismatch',
+  rebase: 'mr-widget-rebase',
 };

 const statesToShowHelpWidget = [
@ -29,6 +30,7 @@ const statesToShowHelpWidget = [
  'pipelineFailed',
  'pipelineBlocked',
  'autoMergeFailed',
+  'rebase',
 ];

 export const stateKey = {
@ -46,6 +48,7 @@ export const stateKey = {
  mergeWhenPipelineSucceeds: 'mergeWhenPipelineSucceeds',
  notAllowedToMerge: 'notAllowedToMerge',
  readyToMerge: 'readyToMerge',
+  rebase: 'rebase',
 };

 export default {
--- a/app/assets/javascripts/vue_shared/components/expand_button.vue
+++ b/app/assets/javascripts/vue_shared/components/expand_button.vue
@ -0,0 +1,46 @@
+<script>
+  import { __ } from '~/locale';
+  /**
+   * Port of detail_behavior expand button.
+   *
+   * @example
+   * <expand-button>
+   *   <template slot="expanded">
+   *      Text goes here.
+   *    </template>
+   * </expand-button>
+   */
+  export default {
+    name: 'expandButton',
+    data() {
+      return {
+        isCollapsed: true,
+      };
+    },
+    computed: {
+      ariaLabel() {
+        return __('Click to expand text');
+      },
+    },
+    methods: {
+      onClick() {
+        this.isCollapsed = !this.isCollapsed;
+      },
+    },
+  };
+</script>
+<template>
+  <span>
+    <button
+      type="button"
+      v-show="isCollapsed"
+      class="text-expander btn-blank"
+      :aria-label="ariaLabel"
+      @click="onClick">
+      ...
+    </button>
+    <span v-show="!isCollapsed">
+      <slot name="expanded"></slot>
+    </span>
+  </span>
+</template>
--- a/app/assets/javascripts/vue_shared/components/modal.vue
+++ b/app/assets/javascripts/vue_shared/components/modal.vue
@ -3,6 +3,10 @@ export default {
  name: 'modal',

  props: {
+    id: {
+      type: String,
+      required: false,
+    },
    title: {
      type: String,
      required: false,
@ -62,11 +66,11 @@ export default {
  },

  methods: {
-    close() {
-      this.$emit('toggle', false);
+    emitCancel(event) {
+      this.$emit('cancel', event);
    },
-    emitSubmit(status) {
-      this.$emit('submit', status);
+    emitSubmit(event) {
+      this.$emit('submit', event);
    },
  },
 };
@ -75,7 +79,9 @@ export default {
 <template>
 <div class="modal-open">
  <div
-    class="modal show"
+    :id="id"
+    class="modal"
+    :class="id ? '' : 'show'"
    role="dialog"
    tabindex="-1"
  >
@ -93,7 +99,8 @@ export default {
            <button
              type="button"
              class="close pull-right"
-              @click="close"
+              @click="emitCancel($event)"
+              data-dismiss="modal"
              aria-label="Close"
            >
              <span aria-hidden="true">&times;</span>
@ -110,7 +117,8 @@ export default {
            type="button"
            class="btn pull-left"
            :class="btnCancelKindClass"
-            @click="close">
+            @click="emitCancel($event)"
+            data-dismiss="modal">
            {{ closeButtonLabel }}
          </button>
          <button
@ -119,13 +127,17 @@ export default {
            class="btn pull-right js-primary-button"
            :disabled="submitDisabled"
            :class="btnKindClass"
-            @click="emitSubmit(true)">
+            @click="emitSubmit($event)"
+            data-dismiss="modal">
            {{ primaryButtonLabel }}
          </button>
        </div>
      </div>
    </div>
  </div>
-  <div class="modal-backdrop fade in" />
+  <div
+    v-if="!id"
+    class="modal-backdrop fade in">
+  </div>
 </div>
 </template>
--- a/app/assets/javascripts/vue_shared/components/recaptcha_modal.vue
+++ b/app/assets/javascripts/vue_shared/components/recaptcha_modal.vue
@ -70,7 +70,7 @@ export default {
  class="recaptcha-modal js-recaptcha-modal"
  :hide-footer="true"
  :title="__('Please solve the reCAPTCHA')"
-  @toggle="close"
+  @cancel="close"
 >
  <div slot="body">
    <p>
--- a/app/controllers/projects/merge_requests_controller.rb
+++ b/app/controllers/projects/merge_requests_controller.rb
@ -10,6 +10,7 @@ class Projects::MergeRequestsController < Projects::MergeRequests::ApplicationCo
  before_action :authorize_update_issuable!, only: [:close, :edit, :update, :remove_wip, :sort]
  before_action :set_issuables_index, only: [:index]
  before_action :authenticate_user!, only: [:assign_related_issues]
+  before_action :check_user_can_push_to_source_branch!, only: [:rebase]

  def index
    @merge_requests = @issuables
@ -223,6 +224,12 @@ class Projects::MergeRequestsController < Projects::MergeRequests::ApplicationCo
    render json: environments
  end

+  def rebase
+    RebaseWorker.perform_async(@merge_request.id, current_user.id)
+
+    render nothing: true, status: 200
+  end
+
  protected

  alias_method :subscribable_resource, :merge_request
@ -322,4 +329,14 @@ class Projects::MergeRequestsController < Projects::MergeRequests::ApplicationCo
    @finder_type = MergeRequestsFinder
    super
  end
+
+  def check_user_can_push_to_source_branch!
+    return access_denied! unless @merge_request.source_branch_exists?
+
+    access_check = ::Gitlab::UserAccess
+      .new(current_user, project: @merge_request.source_project)
+      .can_push_to_branch?(@merge_request.source_branch)
+
+    access_denied! unless access_check
+  end
 end
--- a/app/controllers/projects_controller.rb
+++ b/app/controllers/projects_controller.rb
@ -353,7 +353,7 @@ class ProjectsController < Projects::ApplicationController
  end

  def repo_exists?
-    project.repository_exists? && !project.empty_repo? && project.repo
+    project.repository_exists? && !project.empty_repo?

  rescue Gitlab::Git::Repository::NoRepository
    project.repository.expire_exists_cache
--- a/app/finders/labels_finder.rb
+++ b/app/finders/labels_finder.rb
@ -1,4 +1,6 @@
 class LabelsFinder < UnionFinder
+  include Gitlab::Utils::StrongMemoize
+
  def initialize(current_user, params = {})
    @current_user = current_user
    @params = params
@ -32,6 +34,8 @@ class LabelsFinder < UnionFinder
          label_ids << project.labels
        end
      end
+    elsif only_group_labels?
+      label_ids << Label.where(group_id: group.id)
    else
      label_ids << Label.where(group_id: projects.group_ids)
      label_ids << Label.where(project_id: projects.select(:id))
@ -51,6 +55,13 @@ class LabelsFinder < UnionFinder
    items.where(title: title)
  end

+  def group
+    strong_memoize(:group) do
+      group = Group.find(params[:group_id])
+      authorized_to_read_labels?(group) && group
+    end
+  end
+
  def group?
    params[:group_id].present?
  end
@ -63,6 +74,10 @@ class LabelsFinder < UnionFinder
    params[:project_ids].present?
  end

+  def only_group_labels?
+    params[:only_group_labels]
+  end
+
  def title
    params[:title] || params[:name]
  end
@ -96,9 +111,9 @@ class LabelsFinder < UnionFinder
    @projects
  end

-  def authorized_to_read_labels?(project)
+  def authorized_to_read_labels?(label_parent)
    return true if skip_authorization

-    Ability.allowed?(current_user, :read_label, project)
+    Ability.allowed?(current_user, :read_label, label_parent)
  end
 end
--- a/app/helpers/branches_helper.rb
+++ b/app/helpers/branches_helper.rb
@ -23,4 +23,12 @@ module BranchesHelper
  def protected_branch?(project, branch)
    ProtectedBranch.protected?(project, branch.name)
  end
+
+  def diverging_count_label(count)
+    if count >= Repository::MAX_DIVERGING_COUNT
+      "#{Repository::MAX_DIVERGING_COUNT - 1}+"
+    else
+      count.to_s
+    end
+  end
 end
--- a/app/models/concerns/deployment_platform.rb
+++ b/app/models/concerns/deployment_platform.rb
@ -0,0 +1,48 @@
+module DeploymentPlatform
+  def deployment_platform
+    @deployment_platform ||=
+      find_cluster_platform_kubernetes ||
+      find_kubernetes_service_integration ||
+      build_cluster_and_deployment_platform
+  end
+
+  private
+
+  def find_cluster_platform_kubernetes
+    clusters.find_by(enabled: true)&.platform_kubernetes
+  end
+
+  def find_kubernetes_service_integration
+    services.deployment.reorder(nil).find_by(active: true)
+  end
+
+  def build_cluster_and_deployment_platform
+    return unless kubernetes_service_template
+
+    cluster = ::Clusters::Cluster.create(cluster_attributes_from_service_template)
+    cluster.platform_kubernetes if cluster.persisted?
+  end
+
+  def kubernetes_service_template
+    @kubernetes_service_template ||= KubernetesService.active.find_by_template
+  end
+
+  def cluster_attributes_from_service_template
+    {
+      name: 'kubernetes-template',
+      projects: [self],
+      provider_type: :user,
+      platform_type: :kubernetes,
+      platform_kubernetes_attributes: platform_kubernetes_attributes_from_service_template
+    }
+  end
+
+  def platform_kubernetes_attributes_from_service_template
+    {
+      api_url: kubernetes_service_template.api_url,
+      ca_pem: kubernetes_service_template.ca_pem,
+      token: kubernetes_service_template.token,
+      namespace: kubernetes_service_template.namespace
+    }
+  end
+end
--- a/app/models/concerns/relative_positioning.rb
+++ b/app/models/concerns/relative_positioning.rb
@ -10,12 +10,12 @@ module RelativePositioning
    after_save :save_positionable_neighbours
  end

-  def project_ids
-    [project.id]
+  def min_relative_position
+    self.class.in_parents(parent_ids).minimum(:relative_position)
  end

  def max_relative_position
-    self.class.in_projects(project_ids).maximum(:relative_position)
+    self.class.in_parents(parent_ids).maximum(:relative_position)
  end

  def prev_relative_position
@ -23,7 +23,7 @@ module RelativePositioning

    if self.relative_position
      prev_pos = self.class
-        .in_projects(project_ids)
+        .in_parents(parent_ids)
        .where('relative_position < ?', self.relative_position)
        .maximum(:relative_position)
    end
@ -36,7 +36,7 @@ module RelativePositioning

    if self.relative_position
      next_pos = self.class
-        .in_projects(project_ids)
+        .in_parents(parent_ids)
        .where('relative_position > ?', self.relative_position)
        .minimum(:relative_position)
    end
@ -63,7 +63,7 @@ module RelativePositioning
    pos_after = before.next_relative_position

    if before.shift_after?
-      issue_to_move = self.class.in_projects(project_ids).find_by!(relative_position: pos_after)
+      issue_to_move = self.class.in_parents(parent_ids).find_by!(relative_position: pos_after)
      issue_to_move.move_after
      @positionable_neighbours = [issue_to_move] # rubocop:disable Gitlab/ModuleWithInstanceVariables

@ -78,7 +78,7 @@ module RelativePositioning
    pos_before = after.prev_relative_position

    if after.shift_before?
-      issue_to_move = self.class.in_projects(project_ids).find_by!(relative_position: pos_before)
+      issue_to_move = self.class.in_parents(parent_ids).find_by!(relative_position: pos_before)
      issue_to_move.move_before
      @positionable_neighbours = [issue_to_move] # rubocop:disable Gitlab/ModuleWithInstanceVariables

@ -92,6 +92,10 @@ module RelativePositioning
    self.relative_position = position_between(max_relative_position || START_POSITION, MAX_POSITION)
  end

+  def move_to_start
+    self.relative_position = position_between(min_relative_position || START_POSITION, MIN_POSITION)
+  end
+
  # Indicates if there is an issue that should be shifted to free the place
  def shift_after?
    next_pos = next_relative_position
--- a/app/models/issue.rb
+++ b/app/models/issue.rb
@ -35,6 +35,8 @@ class Issue < ActiveRecord::Base

  validates :project, presence: true

+  alias_attribute :parent_ids, :project_id
+
  scope :in_projects, ->(project_ids) { where(project_id: project_ids) }

  scope :assigned, -> { where('EXISTS (SELECT TRUE FROM issue_assignees WHERE issue_id = issues.id)') }
@ -78,6 +80,10 @@ class Issue < ActiveRecord::Base

  acts_as_paranoid

+  class << self
+    alias_method :in_parents, :in_projects
+  end
+
  def self.reference_prefix
    '#'
  end
--- a/app/models/merge_request.rb
+++ b/app/models/merge_request.rb
@ -156,6 +156,13 @@ class MergeRequest < ActiveRecord::Base
    '!'
  end

+  def rebase_in_progress?
+    # The source project can be deleted
+    return false unless source_project
+
+    source_project.repository.rebase_in_progress?(id)
+  end
+
  # Use this method whenever you need to make sure the head_pipeline is synced with the
  # branch head commit, for example checking if a merge request can be merged.
  # For more information check: https://gitlab.com/gitlab-org/gitlab-ce/issues/40004
@ -607,7 +614,7 @@ class MergeRequest < ActiveRecord::Base

    check_if_can_be_merged

-    can_be_merged?
+    can_be_merged? && !should_be_rebased?
  end

  def mergeable_state?(skip_ci_check: false)
--- a/app/models/project.rb
+++ b/app/models/project.rb
@ -19,6 +19,7 @@ class Project < ActiveRecord::Base
  include Routable
  include GroupDescendant
  include Gitlab::SQL::Pattern
+  include DeploymentPlatform

  extend Gitlab::ConfigHelper
  extend Gitlab::CurrentSettings
@ -904,12 +905,6 @@ class Project < ActiveRecord::Base
    @ci_service ||= ci_services.reorder(nil).find_by(active: true)
  end

-  # TODO: This will be extended for multiple enviroment clusters
-  def deployment_platform
-    @deployment_platform ||= clusters.find_by(enabled: true)&.platform_kubernetes
-    @deployment_platform ||= services.where(category: :deployment).reorder(nil).find_by(active: true)
-  end
-
  def monitoring_services
    services.where(category: :monitoring)
  end
@ -992,10 +987,6 @@ class Project < ActiveRecord::Base
    false
  end

-  def repo
-    repository.rugged
-  end
-
  def url_to_repo
    gitlab_shell.url_to_repo(full_path)
  end
@ -1438,7 +1429,7 @@ class Project < ActiveRecord::Base
    # We'd need to keep track of project full path otherwise directory tree
    # created with hashed storage enabled cannot be usefully imported using
    # the import rake task.
-    repo.config['gitlab.fullpath'] = gl_full_path
+    repository.rugged.config['gitlab.fullpath'] = gl_full_path
  rescue Gitlab::Git::Repository::NoRepository => e
    Rails.logger.error("Error writing to .git/config for project #{full_path} (#{id}): #{e.message}.")
    nil
--- a/app/models/repository.rb
+++ b/app/models/repository.rb
@ -4,6 +4,7 @@ class Repository
  REF_MERGE_REQUEST = 'merge-requests'.freeze
  REF_KEEP_AROUND = 'keep-around'.freeze
  REF_ENVIRONMENTS = 'environments'.freeze
+  MAX_DIVERGING_COUNT = 1000

  RESERVED_REFS_NAMES = %W[
    heads
@ -278,11 +279,12 @@ class Repository
    cache.fetch(:"diverging_commit_counts_#{branch.name}") do
      # Rugged seems to throw a `ReferenceError` when given branch_names rather
      # than SHA-1 hashes
-      number_commits_behind = raw_repository
-        .count_commits_between(branch.dereferenced_target.sha, root_ref_hash)
-
-      number_commits_ahead = raw_repository
-        .count_commits_between(root_ref_hash, branch.dereferenced_target.sha)
+      number_commits_behind, number_commits_ahead =
+        raw_repository.count_commits_between(
+          root_ref_hash,
+          branch.dereferenced_target.sha,
+          left_right: true,
+          max_count: MAX_DIVERGING_COUNT)

      { behind: number_commits_behind, ahead: number_commits_ahead }
    end
@ -1099,6 +1101,13 @@ class Repository
    @project.repository_storage_path
  end

+  def rebase(user, merge_request)
+    raw.rebase(user, merge_request.id, branch: merge_request.source_branch,
+                                       branch_sha: merge_request.source_branch_sha,
+                                       remote_repository: merge_request.target_project.repository.raw,
+                                       remote_branch: merge_request.target_branch)
+  end
+
  private

  # TODO Generice finder, later split this on finders by Ref or Oid
--- a/app/models/service.rb
+++ b/app/models/service.rb
@ -44,6 +44,7 @@ class Service < ActiveRecord::Base
  scope :pipeline_hooks, -> { where(pipeline_events: true, active: true) }
  scope :wiki_page_hooks, -> { where(wiki_page_events: true, active: true) }
  scope :external_issue_trackers, -> { issue_trackers.active.without_defaults }
+  scope :deployment, -> { where(category: 'deployment') }

  default_value_for :category, 'common'

@ -271,6 +272,10 @@ class Service < ActiveRecord::Base
    nil
  end

+  def self.find_by_template
+    find_by(template: true)
+  end
+
  private

  def cache_project_has_external_issue_tracker
--- a/app/policies/group_policy.rb
+++ b/app/policies/group_policy.rb
@ -28,12 +28,18 @@ class GroupPolicy < BasePolicy
  with_options scope: :subject, score: 0
  condition(:request_access_enabled) { @subject.request_access_enabled }

-  rule { public_group }      .enable :read_group
+  rule { public_group }.policy do
+    enable :read_group
+    enable :read_list
+    enable :read_label
+  end
+
  rule { logged_in_viewable }.enable :read_group

  rule { guest }.policy do
    enable :read_group
    enable :upload_file
+    enable :read_label
  end

  rule { admin }             .enable :read_group
--- a/app/presenters/merge_request_presenter.rb
+++ b/app/presenters/merge_request_presenter.rb
@ -76,6 +76,12 @@ class MergeRequestPresenter < Gitlab::View::Presenter::Delegated
    end
  end

+  def rebase_path
+    if !rebase_in_progress? && should_be_rebased? && user_can_push_to_source_branch?
+      rebase_project_merge_request_path(project, merge_request)
+    end
+  end
+
  def target_branch_tree_path
    if target_branch_exists?
      project_tree_path(project, target_branch)
@ -152,6 +158,10 @@ class MergeRequestPresenter < Gitlab::View::Presenter::Delegated
    user_can_collaborate_with_project? && can_be_cherry_picked?
  end

+  def can_push_to_source_branch?
+    source_branch_exists? && user_can_push_to_source_branch?
+  end
+
  private

  def conflicts
@ -174,6 +184,14 @@ class MergeRequestPresenter < Gitlab::View::Presenter::Delegated
    end.sort.to_sentence
  end

+  def user_can_push_to_source_branch?
+    return false unless source_branch_exists?
+
+    ::Gitlab::UserAccess
+      .new(current_user, project: source_project)
+      .can_push_to_branch?(source_branch)
+  end
+
  def user_can_collaborate_with_project?
    can?(current_user, :push_code, project) ||
      (current_user && current_user.already_forked?(project))
--- a/app/serializers/merge_request_basic_entity.rb
+++ b/app/serializers/merge_request_basic_entity.rb
@ -4,4 +4,5 @@ class MergeRequestBasicEntity < IssuableSidebarEntity
  expose :merge_error
  expose :state
  expose :source_branch_exists?, as: :source_branch_exists
+  expose :rebase_in_progress?, as: :rebase_in_progress
 end
--- a/app/serializers/merge_request_widget_entity.rb
+++ b/app/serializers/merge_request_widget_entity.rb
@ -23,6 +23,16 @@ class MergeRequestWidgetEntity < IssuableEntity
    MergeRequestMetricsEntity.new(metrics).as_json
  end

+  expose :rebase_commit_sha
+  expose :rebase_in_progress?, as: :rebase_in_progress
+
+  expose :can_push_to_source_branch do |merge_request|
+    presenter(merge_request).can_push_to_source_branch?
+  end
+  expose :rebase_path do |merge_request|
+    presenter(merge_request).rebase_path
+  end
+
  # User entities
  expose :merge_user, using: UserEntity

--- a/app/services/merge_requests/rebase_service.rb
+++ b/app/services/merge_requests/rebase_service.rb
@ -0,0 +1,30 @@
+module MergeRequests
+  class RebaseService < MergeRequests::WorkingCopyBaseService
+    def execute(merge_request)
+      @merge_request = merge_request
+
+      if rebase
+        success
+      else
+        error('Failed to rebase. Should be done manually')
+      end
+    end
+
+    def rebase
+      if merge_request.rebase_in_progress?
+        log_error('Rebase task canceled: Another rebase is already in progress', save_message_on_model: true)
+        return false
+      end
+
+      rebase_sha = repository.rebase(current_user, merge_request)
+
+      merge_request.update_attributes(rebase_commit_sha: rebase_sha)
+
+      true
+    rescue => e
+      log_error('Failed to rebase branch:')
+      log_error(e.message, save_message_on_model: true)
+      false
+    end
+  end
+end
--- a/app/services/merge_requests/working_copy_base_service.rb
+++ b/app/services/merge_requests/working_copy_base_service.rb
@ -0,0 +1,24 @@
+module MergeRequests
+  class WorkingCopyBaseService < MergeRequests::BaseService
+    attr_reader :merge_request
+
+    def source_project
+      @source_project ||= merge_request.source_project
+    end
+
+    def target_project
+      @target_project ||= merge_request.target_project
+    end
+
+    def log_error(message, save_message_on_model: false)
+      Gitlab::GitLogger.error("#{self.class.name} error (#{merge_request.to_reference(full: true)}): #{message}")
+
+      merge_request.update(merge_error: message) if save_message_on_model
+    end
+
+    # Don't try to print expensive instance variables.
+    def inspect
+      "#<#{self.class} #{merge_request.to_reference(full: true)}>"
+    end
+  end
+end
--- a/app/views/profiles/accounts/show.html.haml
+++ b/app/views/profiles/accounts/show.html.haml
@ -84,11 +84,13 @@
        = s_('Profiles|Deleting an account has the following effects:')
      = render 'users/deletion_guidance', user: current_user

+      %button#delete-account-button.btn.btn-danger.disabled{ data: { toggle: 'modal',
+        target: '#delete-account-modal' } }
+        = s_('Profiles|Delete account')
+
      #delete-account-modal{ data: { action_url: user_registration_path,
        confirm_with_password: ('true' if current_user.confirm_deletion_with_password?),
        username: current_user.username } }
-        %button.btn.btn-danger.disabled
-          = s_('Profiles|Delete account')
    - else
      - if @user.solo_owned_groups.present?
        %p
--- a/app/views/projects/_merge_request_fast_forward_settings.html.haml
+++ b/app/views/projects/_merge_request_fast_forward_settings.html.haml
@ -10,4 +10,4 @@
      No merge commits are created and all merges are fast-forwarded, which means that merging is only allowed if the branch could be fast-forwarded.
    %br
    %span.descr
-      When fast-forward merge is not possible, the user must first rebase locally.
+      When fast-forward merge is not possible, the user is given the option to rebase.
--- a/app/views/projects/_merge_request_rebase_settings.html.haml
+++ b/app/views/projects/_merge_request_rebase_settings.html.haml
@ -10,4 +10,4 @@
      This way you could make sure that if this merge request would build, after merging to target branch it would also build.
    %br
    %span.descr
-      When fast-forward merge is not possible, the user must first rebase locally.
+      When fast-forward merge is not possible, the user is given the option to rebase.
--- a/app/views/projects/branches/_branch.html.haml
+++ b/app/views/projects/branches/_branch.html.haml
@ -66,16 +66,16 @@
            = icon("trash-o")

    - if branch.name != @repository.root_ref
-      .divergence-graph{ title: s_('%{number_commits_behind} commits behind %{default_branch}, %{number_commits_ahead} commits ahead') % { number_commits_behind: number_commits_behind,
+      .divergence-graph{ title: s_('%{number_commits_behind} commits behind %{default_branch}, %{number_commits_ahead} commits ahead') % { number_commits_behind: diverging_count_label(number_commits_behind),
        default_branch: @repository.root_ref,
-        number_commits_ahead: number_commits_ahead } }
+        number_commits_ahead: diverging_count_label(number_commits_ahead) } }
        .graph-side
          .bar.bar-behind{ style: "width: #{number_commits_behind * bar_graph_width_factor}%" }
-          %span.count.count-behind= number_commits_behind
+          %span.count.count-behind= diverging_count_label(number_commits_behind)
        .graph-separator
        .graph-side
          .bar.bar-ahead{ style: "width: #{number_commits_ahead * bar_graph_width_factor}%" }
-          %span.count.count-ahead= number_commits_ahead
+          %span.count.count-ahead= diverging_count_label(number_commits_ahead)


  - if commit
--- a/app/views/projects/clusters/_advanced_settings.html.haml
+++ b/app/views/projects/clusters/_advanced_settings.html.haml
@ -11,5 +11,5 @@
    %label.text-danger
      = s_('ClusterIntegration|Remove cluster integration')
    %p
-      = s_('ClusterIntegration|Removing cluster integration will remove the cluster configuration you have added to this project. It will not delete your cluster on Google Kubernetes Engine.')
-    = link_to(s_('ClusterIntegration|Remove integration'), namespace_project_cluster_path(@project.namespace, @project, @cluster.id), method: :delete, class: 'btn btn-danger', data: { confirm: "Are you sure you want to remove cluster integration from this project? This will not delete your cluster on Google Kubernetes Engine"})
+      = s_("ClusterIntegration|Remove this cluster's configuration from this project. This will not delete your actual cluster.")
+    = link_to(s_('ClusterIntegration|Remove integration'), namespace_project_cluster_path(@project.namespace, @project, @cluster.id), method: :delete, class: 'btn btn-danger', data: { confirm: s_("ClusterIntegration|Are you sure you want to remove this cluster's integration? This will not delete your actual cluster.")})
--- a/app/views/projects/clusters/_banner.html.haml
+++ b/app/views/projects/clusters/_banner.html.haml
@ -1,6 +1,6 @@
-%h4= s_('ClusterIntegration|Enable cluster integration')
-.settings-content
+%h4= s_('ClusterIntegration|Cluster integration')

+.settings-content
  .hidden.js-cluster-error.alert.alert-danger.alert-block.append-bottom-10{ role: 'alert' }
    = s_('ClusterIntegration|Something went wrong while creating your cluster on Google Kubernetes Engine')
    %p.js-error-reason
@ -11,11 +11,4 @@
  .hidden.js-cluster-success.alert.alert-success.alert-block.append-bottom-10{ role: 'alert' }
    = s_('ClusterIntegration|Cluster was successfully created on Google Kubernetes Engine. Refresh the page to see cluster\'s details')

-  %p
-    - if @cluster.enabled?
-      - if can?(current_user, :update_cluster, @cluster)
-        = s_('ClusterIntegration|Cluster integration is enabled for this project. Disabling this integration will not affect your cluster, it will only temporarily turn off GitLab\'s connection to it.')
-      - else
-        = s_('ClusterIntegration|Cluster integration is enabled for this project.')
-    - else
-      = s_('ClusterIntegration|Cluster integration is disabled for this project.')
+  %p= s_('ClusterIntegration|Control how your cluster integrates with GitLab')
--- a/app/views/projects/clusters/_cluster.html.haml
+++ b/app/views/projects/clusters/_cluster.html.haml
@ -4,7 +4,7 @@
    .table-mobile-content
      = link_to cluster.name, namespace_project_cluster_path(@project.namespace, @project, cluster)
  .table-section.section-30
-    .table-mobile-header{ role: "rowheader" }= s_("ClusterIntegration|Environment pattern")
+    .table-mobile-header{ role: "rowheader" }= s_("ClusterIntegration|Environment scope")
    .table-mobile-content= cluster.environment_scope
  .table-section.section-30
    .table-mobile-header{ role: "rowheader" }= s_("ClusterIntegration|Project namespace")
--- a/app/views/projects/clusters/_enabled.html.haml
+++ b/app/views/projects/clusters/_enabled.html.haml
@ -1,17 +0,0 @@
-= form_for @cluster, url: namespace_project_cluster_path(@project.namespace, @project, @cluster), as: :cluster do |field|
-  = form_errors(@cluster)
-  .form-group.append-bottom-20
-    %label.append-bottom-10
-      = field.hidden_field :enabled, { class: 'js-toggle-input'}
-
-      %button{ type: 'button',
-        class: "js-toggle-cluster project-feature-toggle #{'is-checked' unless !@cluster.enabled?} #{'is-disabled' unless can?(current_user, :update_cluster, @cluster)}",
-        "aria-label": s_("ClusterIntegration|Toggle Cluster"),
-        disabled: !can?(current_user, :update_cluster, @cluster) }
-        %span.toggle-icon
-          = sprite_icon('status_success_borderless', size: 16, css_class: 'toggle-icon-svg toggle-status-checked')
-          = sprite_icon('status_failed_borderless', size: 16, css_class: 'toggle-icon-svg toggle-status-unchecked')
-
-    - if can?(current_user, :update_cluster, @cluster)
-      .form-group
-        = field.submit _('Save'), class: 'btn btn-success'
--- a/app/views/projects/clusters/_integration_form.html.haml
+++ b/app/views/projects/clusters/_integration_form.html.haml
@ -0,0 +1,33 @@
+= form_for @cluster, url: namespace_project_cluster_path(@project.namespace, @project, @cluster), as: :cluster do |field|
+  = form_errors(@cluster)
+  .form-group.append-bottom-20
+    %h5= s_('ClusterIntegration|Integration status')
+    %p
+      - if @cluster.enabled?
+        - if can?(current_user, :update_cluster, @cluster)
+          = s_('ClusterIntegration|Cluster integration is enabled for this project. Disabling this integration will not affect your cluster, it will only temporarily turn off GitLab\'s connection to it.')
+        - else
+          = s_('ClusterIntegration|Cluster integration is enabled for this project.')
+      - else
+        = s_('ClusterIntegration|Cluster integration is disabled for this project.')
+    %label.append-bottom-10
+      = field.hidden_field :enabled, { class: 'js-toggle-input'}
+
+      %button{ type: 'button',
+        class: "js-toggle-cluster project-feature-toggle #{'is-checked' unless !@cluster.enabled?} #{'is-disabled' unless can?(current_user, :update_cluster, @cluster)}",
+        "aria-label": s_("ClusterIntegration|Toggle Cluster"),
+        disabled: !can?(current_user, :update_cluster, @cluster) }
+        %span.toggle-icon
+          = sprite_icon('status_success_borderless', size: 16, css_class: 'toggle-icon-svg toggle-status-checked')
+          = sprite_icon('status_failed_borderless', size: 16, css_class: 'toggle-icon-svg toggle-status-unchecked')
+
+  .form-group
+    %h5= s_('ClusterIntegration|Environment scope')
+    %p
+      = s_("ClusterIntegration|Choose which of your project's environments will use this cluster.")
+      = link_to s_("ClusterIntegration|Learn more about environments"), help_page_path('ci/environments')
+    = field.text_field :environment_scope, class: 'form-control js-select-on-focus', readonly: !has_multiple_clusters?(@project), placeholder: s_('ClusterIntegration|Environment scope')
+
+  - if can?(current_user, :update_cluster, @cluster)
+    .form-group
+      = field.submit _('Save changes'), class: 'btn btn-success'
--- a/app/views/projects/clusters/gcp/_show.html.haml
+++ b/app/views/projects/clusters/gcp/_show.html.haml
@ -9,10 +9,6 @@
 = form_for @cluster, url: namespace_project_cluster_path(@project.namespace, @project, @cluster), as: :cluster do |field|
  = form_errors(@cluster)

-  .form-group
-    = field.label :environment_scope, s_('ClusterIntegration|Environment scope')
-    = field.text_field :environment_scope, class: 'form-control js-select-on-focus', readonly: !has_multiple_clusters?(@project), placeholder: s_('ClusterIntegration|Environment scope')
-
  = field.fields_for :platform_kubernetes, @cluster.platform_kubernetes do |platform_kubernetes_field|
    .form-group
      = platform_kubernetes_field.label :api_url, s_('ClusterIntegration|API URL')
--- a/app/views/projects/clusters/index.html.haml
+++ b/app/views/projects/clusters/index.html.haml
@ -13,7 +13,7 @@
        .table-section.section-30{ role: "rowheader" }
          = s_("ClusterIntegration|Cluster")
        .table-section.section-30{ role: "rowheader" }
-          = s_("ClusterIntegration|Environment pattern")
+          = s_("ClusterIntegration|Environment scope")
        .table-section.section-30{ role: "rowheader" }
          = s_("ClusterIntegration|Project namespace")
        .table-section.section-10{ role: "rowheader" }
--- a/app/views/projects/clusters/show.html.haml
+++ b/app/views/projects/clusters/show.html.haml
@ -18,9 +18,9 @@
  .js-cluster-application-notice
    .flash-container

-  %section.settings.no-animate.expanded
+  %section.settings.no-animate.expanded#cluster-integration
    = render 'banner'
-    = render 'enabled'
+    = render 'integration_form'

  .cluster-applications-table#js-cluster-applications

@ -41,6 +41,6 @@
      %h4= _('Advanced settings')
      %button.btn.js-settings-toggle
        = expanded ? 'Collapse' : 'Expand'
-      %p= s_('ClusterIntegration|Manage cluster integration on your GitLab project')
+      %p= s_("ClusterIntegration|Advanced options on this cluster's integration")
    .settings-content
      = render 'advanced_settings'
--- a/app/views/projects/clusters/user/_show.html.haml
+++ b/app/views/projects/clusters/user/_show.html.haml
@ -4,10 +4,6 @@
    = field.label :name, s_('ClusterIntegration|Cluster name')
    = field.text_field :name, class: 'form-control', placeholder: s_('ClusterIntegration|Cluster name')

-  .form-group
-    = field.label :environment_scope, s_('ClusterIntegration|Environment scope')
-    = field.text_field :environment_scope, class: 'form-control js-select-on-focus', readonly: !has_multiple_clusters?(@project), placeholder: s_('ClusterIntegration|Environment scope')
-
  = field.fields_for :platform_kubernetes, @cluster.platform_kubernetes do |platform_kubernetes_field|
    .form-group
      = platform_kubernetes_field.label :api_url, s_('ClusterIntegration|API URL')
--- a/app/workers/all_queues.yml
+++ b/app/workers/all_queues.yml
@ -90,6 +90,7 @@
 - project_service
 - propagate_service_template
 - reactive_caching
+- rebase
 - repository_fork
 - repository_import
 - storage_migrator
--- a/app/workers/rebase_worker.rb
+++ b/app/workers/rebase_worker.rb
@ -0,0 +1,12 @@
+class RebaseWorker
+  include ApplicationWorker
+
+  def perform(merge_request_id, current_user_id)
+    current_user = User.find(current_user_id)
+    merge_request = MergeRequest.find(merge_request_id)
+
+    MergeRequests::RebaseService
+      .new(merge_request.source_project, current_user)
+      .execute(merge_request)
+  end
+end
--- a/changelogs/unreleased/40228-verify-integrity-of-repositories.yml
+++ b/changelogs/unreleased/40228-verify-integrity-of-repositories.yml
@ -0,0 +1,5 @@
+---
+title: Fix gitlab-rake gitlab:import:repos import schedule
+merge_request: 15931
+author:
+type: fixed
--- a/changelogs/unreleased/40301-rebase.yml
+++ b/changelogs/unreleased/40301-rebase.yml
@ -0,0 +1,5 @@
+---
+title: Allow user to rebase merge requests.
+merge_request:
+author:
+type: added
--- a/changelogs/unreleased/40622-use-left-right-and-max-count.yml
+++ b/changelogs/unreleased/40622-use-left-right-and-max-count.yml
@ -0,0 +1,6 @@
+---
+title: Improve the performance for counting diverging commits. Show 999+
+  if it is more than 1000 commits
+merge_request: 15963
+author:
+type: performance
--- a/changelogs/unreleased/41056-create-cluster-from-kubernetes-integration-application-template.yml
+++ b/changelogs/unreleased/41056-create-cluster-from-kubernetes-integration-application-template.yml
@ -0,0 +1,5 @@
+---
+title: Allow automatic creation of Kubernetes Integration from template
+merge_request: 16104
+author:
+type: added
--- a/changelogs/unreleased/ac-autodevopfix-kubectl-version.yml
+++ b/changelogs/unreleased/ac-autodevopfix-kubectl-version.yml
@ -0,0 +1,5 @@
+---
+title: Force Auto DevOps kubectl version to 1.8.6
+merge_request: 16218
+author:
+type: fixed
--- a/changelogs/unreleased/api-domains-expose-project_id.yml
+++ b/changelogs/unreleased/api-domains-expose-project_id.yml
@ -0,0 +1,5 @@
+---
+title: Expose project_id on /api/v4/pages/domains
+merge_request: 16200
+author: Luc Didry
+type: changed
--- a/changelogs/unreleased/feature-api_runners_online.yml
+++ b/changelogs/unreleased/feature-api_runners_online.yml
@ -0,0 +1,5 @@
+---
+title: Add online and status attribute to runner api entity
+merge_request: 11750
+author:
+type: added
--- a/changelogs/unreleased/issues-40986-get-participants-from-issues-mr-api.yml
+++ b/changelogs/unreleased/issues-40986-get-participants-from-issues-mr-api.yml
@ -0,0 +1,5 @@
+---
+title: 'API: get participants from merge_requests & issues'
+merge_request: 16187
+author: Brent Greeff
+type: added
--- a/changelogs/unreleased/jivl-fix-import-project-url-bug.yml
+++ b/changelogs/unreleased/jivl-fix-import-project-url-bug.yml
@ -0,0 +1,5 @@
+---
+title: Fix import project url not updating project name
+merge_request: 16120
+author:
+type: fixed
--- a/changelogs/unreleased/ldap_username_attributes.yml
+++ b/changelogs/unreleased/ldap_username_attributes.yml
@ -0,0 +1,5 @@
+---
+title: Modify `LDAP::Person` to return username value based on attributes
+merge_request:
+author:
+type: fixed
--- a/changelogs/unreleased/update-redis-rack.yml
+++ b/changelogs/unreleased/update-redis-rack.yml
@ -0,0 +1,5 @@
+---
+title: Update redis-rack to 2.0.4
+merge_request:
+author:
+type: other
--- a/changelogs/unreleased/winh-modal-target-id.yml
+++ b/changelogs/unreleased/winh-modal-target-id.yml
@ -0,0 +1,5 @@
+---
+title: Add id to modal.vue to support data-toggle="modal"
+merge_request: 16189
+author:
+type: other
--- a/config/routes/project.rb
+++ b/config/routes/project.rb
@ -96,6 +96,7 @@ constraints(ProjectUrlConstrainer.new) do
          post :toggle_subscription
          post :remove_wip
          post :assign_related_issues
+          post :rebase

          scope constraints: { format: nil }, action: :show do
            get :commits, defaults: { tab: 'commits' }
--- a/db/migrate/20171230123729_add_rebase_commit_sha_to_merge_requests.rb
+++ b/db/migrate/20171230123729_add_rebase_commit_sha_to_merge_requests.rb
@ -0,0 +1,7 @@
+class AddRebaseCommitShaToMergeRequests < ActiveRecord::Migration
+  DOWNTIME = false
+
+  def change
+    add_column :merge_requests, :rebase_commit_sha, :string
+  end
+end
--- a/db/post_migrate/20171221140220_schedule_issues_closed_at_type_change.rb
+++ b/db/post_migrate/20171221140220_schedule_issues_closed_at_type_change.rb
@ -1,6 +1,6 @@
 # See http://doc.gitlab.com/ce/development/migration_style_guide.html
 # for more information on how to write migrations for GitLab.
-
+# rubocop:disable Migration/Datetime
 class ScheduleIssuesClosedAtTypeChange < ActiveRecord::Migration
  include Gitlab::Database::MigrationHelpers

--- a/db/schema.rb
+++ b/db/schema.rb
@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.

-ActiveRecord::Schema.define(version: 20171229225929) do
+ActiveRecord::Schema.define(version: 20171230123729) do

  # These are extensions that must be enabled in order to support this database
  enable_extension "plpgsql"
@ -1099,6 +1099,7 @@ ActiveRecord::Schema.define(version: 20171229225929) do
    t.string "merge_jid"
    t.boolean "discussion_locked"
    t.integer "latest_merge_request_diff_id"
+    t.string "rebase_commit_sha"
  end

  add_index "merge_requests", ["assignee_id"], name: "index_merge_requests_on_assignee_id", using: :btree
--- a/doc/administration/raketasks/check.md
+++ b/doc/administration/raketasks/check.md
@ -28,19 +28,25 @@ exactly which repositories are causing the trouble.

 ### Check all GitLab repositories

+>**Note:**
+>
+>  - `gitlab:repo:check` has been deprecated in favor of `gitlab:git:fsck`
+>  - [Deprecated][ce-15931] in GitLab 10.4.
+>  - `gitlab:repo:check` will be removed in the future. [Removal issue][ce-41699]
+
 This task loops through all repositories on the GitLab server and runs the
 3 integrity checks described previously.

 **Omnibus Installation**

 ```
-sudo gitlab-rake gitlab:repo:check
+sudo gitlab-rake gitlab:git:fsck
 ```

 **Source Installation**

 ```bash
-sudo -u git -H bundle exec rake gitlab:repo:check RAILS_ENV=production
+sudo -u git -H bundle exec rake gitlab:git:fsck RAILS_ENV=production
 ```

 ### Check repositories for a specific user
@ -76,3 +82,6 @@ The LDAP check Rake task will test the bind_dn and password credentials
 (if configured) and will list a sample of LDAP users. This task is also
 executed as part of the `gitlab:check` task, but can run independently.
 See [LDAP Rake Tasks - LDAP Check](ldap.md#check) for details.
+
+[ce-15931]: https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/15931
+[ce-41699]: https://gitlab.com/gitlab-org/gitlab-ce/issues/41699
--- a/doc/api/boards.md
+++ b/doc/api/boards.md
@ -15,10 +15,10 @@ GET /projects/:id/boards

 | Attribute | Type | Required | Description |
 | --------- | ---- | -------- | ----------- |
-| `id`   | integer/string  | yes    | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user |
+| `id` | integer/string | yes | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user |

 ```bash
-curl --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/projects/:id/boards
+curl --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/projects/5/boards
 ```

 Example response:
@ -27,6 +27,19 @@ Example response:
 [
  {
    "id" : 1,
+    "project": {
+      "id": 5,
+      "name": "Diaspora Project Site",
+      "name_with_namespace": "Diaspora / Diaspora Project Site",
+      "path": "diaspora-project-site",
+      "path_with_namespace": "diaspora/diaspora-project-site",
+      "http_url_to_repo": "http://example.com/diaspora/diaspora-project-site.git",
+      "web_url": "http://example.com/diaspora/diaspora-project-site"
+    },
+    "milestone":   {
+      "id": 12
+      "title": "10.0"
+    },
    "lists" : [
      {
        "id" : 1,
@ -60,6 +73,74 @@ Example response:
 ]
 ```

+## Single board
+
+Get a single board.
+
+```
+GET /projects/:id/boards/:board_id
+```
+
+| Attribute | Type | Required | Description |
+| --------- | ---- | -------- | ----------- |
+| `id` | integer/string | yes | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user |
+| `board_id` | integer | yes | The ID of a board |
+
+```bash
+curl --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/projects/5/boards/1
+```
+
+Example response:
+
+```json
+  {
+    "id": 1,
+    "name:": "project issue board",
+    "project": {
+      "id": 5,
+      "name": "Diaspora Project Site",
+      "name_with_namespace": "Diaspora / Diaspora Project Site",
+      "path": "diaspora-project-site",
+      "path_with_namespace": "diaspora/diaspora-project-site",
+      "http_url_to_repo": "http://example.com/diaspora/diaspora-project-site.git",
+      "web_url": "http://example.com/diaspora/diaspora-project-site"
+    },
+    "milestone":   {
+      "id": 12
+      "title": "10.0"
+    },
+    "lists" : [
+      {
+        "id" : 1,
+        "label" : {
+          "name" : "Testing",
+          "color" : "#F0AD4E",
+          "description" : null
+        },
+        "position" : 1
+      },
+      {
+        "id" : 2,
+        "label" : {
+          "name" : "Ready",
+          "color" : "#FF0000",
+          "description" : null
+        },
+        "position" : 2
+      },
+      {
+        "id" : 3,
+        "label" : {
+          "name" : "Production",
+          "color" : "#FF5F00",
+          "description" : null
+        },
+        "position" : 3
+      }
+    ]
+  }
+```
+
 ## List board lists

 Get a list of the board's lists.
@ -71,8 +152,8 @@ GET /projects/:id/boards/:board_id/lists

 | Attribute | Type | Required | Description |
 | --------- | ---- | -------- | ----------- |
-| `id`   | integer/string  | yes    | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user |
-| `board_id`   | integer  | yes    | The ID of a board |
+| `id` | integer/string | yes | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user |
+| `board_id` | integer | yes | The ID of a board |

 ```bash
 curl --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/projects/5/boards/1/lists
@ -122,9 +203,9 @@ GET /projects/:id/boards/:board_id/lists/:list_id

 | Attribute | Type | Required | Description |
 | --------- | ---- | -------- | ----------- |
-| `id`      | integer/string | yes   | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user |
-| `board_id`   | integer  | yes    | The ID of a board |
-| `list_id`| integer | yes   | The ID of a board's list |
+| `id` | integer/string | yes | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user |
+| `board_id` | integer | yes | The ID of a board |
+| `list_id`| integer | yes | The ID of a board's list |

 ```bash
 curl --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/projects/5/boards/1/lists/1
@ -154,9 +235,9 @@ POST /projects/:id/boards/:board_id/lists

 | Attribute | Type | Required | Description |
 | --------- | ---- | -------- | ----------- |
-| `id`            | integer/string | yes | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user |
-| `board_id`   | integer  | yes    | The ID of a board |
-| `label_id`         | integer  | yes | The ID of a label |
+| `id` | integer/string | yes | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user |
+| `board_id` | integer | yes | The ID of a board |
+| `label_id` | integer | yes | The ID of a label |

 ```bash
 curl --request POST --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/projects/5/boards/1/lists?label_id=5
@ -186,10 +267,10 @@ PUT /projects/:id/boards/:board_id/lists/:list_id

 | Attribute | Type | Required | Description |
 | --------- | ---- | -------- | ----------- |
-| `id`            | integer/string | yes | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user |
-| `board_id`   | integer  | yes    | The ID of a board |
-| `list_id`      | integer | yes | The ID of a board's list |
-| `position`         | integer  | yes  | The position of the list |
+| `id` | integer/string | yes | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user |
+| `board_id` | integer | yes | The ID of a board |
+| `list_id` | integer | yes | The ID of a board's list |
+| `position` | integer | yes | The position of the list |

 ```bash
 curl --request PUT --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/projects/5/boards/1/lists/1?position=2
@ -219,9 +300,9 @@ DELETE /projects/:id/boards/:board_id/lists/:list_id

 | Attribute | Type | Required | Description |
 | --------- | ---- | -------- | ----------- |
-| `id`            | integer/string | yes | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user |
-| `board_id`   | integer  | yes    | The ID of a board |
-| `list_id`      | integer | yes | The ID of a board's list |
+| `id` | integer/string | yes | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user |
+| `board_id` | integer | yes | The ID of a board |
+| `list_id` | integer | yes | The ID of a board's list |

 ```bash
 curl --request DELETE --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/projects/5/boards/1/lists/1
--- a/doc/api/issues.md
+++ b/doc/api/issues.md
@ -1124,6 +1124,45 @@ Example response:
 ```


+## Participants on issues
+
+```
+GET /projects/:id/issues/:issue_iid/participants
+```
+
+| Attribute   | Type    | Required | Description                          |
+|-------------|---------|----------|--------------------------------------|
+| `id`        | integer/string | yes      | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user  |
+| `issue_iid` | integer | yes      | The internal ID of a project's issue |
+
+```bash
+curl --request GET --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/projects/5/issues/93/participants
+```
+
+Example response:
+
+```json
+[
+  {
+    "id": 1,
+    "name": "John Doe1",
+    "username": "user1",
+    "state": "active",
+    "avatar_url": "http://www.gravatar.com/avatar/c922747a93b40d1ea88262bf1aebee62?s=80&d=identicon",
+    "web_url": "http://localhost/user1"
+  },
+  {
+    "id": 5,
+    "name": "John Doe5",
+    "username": "user5",
+    "state": "active",
+    "avatar_url": "http://www.gravatar.com/avatar/4aea8cf834ed91844a2da4ff7ae6b491?s=80&d=identicon",
+    "web_url": "http://localhost/user5"
+  }
+]
+```
+
+
 ## Comments on issues

 Comments are done via the [notes](notes.md) resource.
--- a/doc/api/merge_requests.md
+++ b/doc/api/merge_requests.md
@ -308,6 +308,41 @@ Parameters:
 }
 ```

+## Get single MR participants
+
+Get a list of merge request participants.
+
+```
+GET /projects/:id/merge_requests/:merge_request_iid/participants
+```
+
+Parameters:
+
+- `id` (required) - The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user
+- `merge_request_iid` (required) - The internal ID of the merge request
+
+
+```json
+[
+  {
+    "id": 1,
+    "name": "John Doe1",
+    "username": "user1",
+    "state": "active",
+    "avatar_url": "http://www.gravatar.com/avatar/c922747a93b40d1ea88262bf1aebee62?s=80&d=identicon",
+    "web_url": "http://localhost/user1"
+  },
+  {
+    "id": 2,
+    "name": "John Doe2",
+    "username": "user2",
+    "state": "active",
+    "avatar_url": "http://www.gravatar.com/avatar/10fc7f102be8de7657fb4d80898bbfe3?s=80&d=identicon",
+    "web_url": "http://localhost/user2"
+  },
+]
+```
+
 ## Get single MR commits

 Get a list of merge request commits.
--- a/doc/api/pages_domains.md
+++ b/doc/api/pages_domains.md
@ -21,6 +21,7 @@ curl --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/a
  {
    "domain": "ssl.domain.example",
    "url": "https://ssl.domain.example",
+    "project_id": 1337,
    "certificate": {
      "expired": false,
      "expiration": "2020-04-12T14:32:00.000Z"
--- a/doc/api/runners.md
+++ b/doc/api/runners.md
@ -30,14 +30,18 @@ Example response:
        "description": "test-1-20150125",
        "id": 6,
        "is_shared": false,
-        "name": null
+        "name": null,
+        "online": true,
+        "status": "online"
    },
    {
        "active": true,
        "description": "test-2-20150125",
        "id": 8,
        "is_shared": false,
-        "name": null
+        "name": null,
+        "online": false,
+        "status": "offline"
    }
 ]
 ```
@ -69,28 +73,36 @@ Example response:
        "description": "shared-runner-1",
        "id": 1,
        "is_shared": true,
-        "name": null
+        "name": null,
+        "online": true,
+        "status": "online"
    },
    {
        "active": true,
        "description": "shared-runner-2",
        "id": 3,
        "is_shared": true,
-        "name": null
+        "name": null,
+        "online": false
+        "status": "offline"
    },
    {
        "active": true,
        "description": "test-1-20150125",
        "id": 6,
        "is_shared": false,
-        "name": null
+        "name": null,
+        "online": true
+        "status": "paused"
    },
    {
        "active": true,
        "description": "test-2-20150125",
        "id": 8,
        "is_shared": false,
-        "name": null
+        "name": null,
+        "online": false,
+        "status": "offline"
    }
 ]
 ```
@ -122,6 +134,8 @@ Example response:
    "is_shared": false,
    "contacted_at": "2016-01-25T16:39:48.066Z",
    "name": null,
+    "online": true,
+    "status": "online",
    "platform": null,
    "projects": [
        {
@ -176,6 +190,8 @@ Example response:
    "is_shared": false,
    "contacted_at": "2016-01-25T16:39:48.066Z",
    "name": null,
+    "online": true,
+    "status": "online",
    "platform": null,
    "projects": [
        {
@ -327,14 +343,18 @@ Example response:
        "description": "test-2-20150125",
        "id": 8,
        "is_shared": false,
-        "name": null
+        "name": null,
+        "online": false,
+        "status": "offline"
    },
    {
        "active": true,
        "description": "development_runner",
        "id": 5,
        "is_shared": true,
-        "name": null
+        "name": null,
+        "online": true
+        "status": "paused"
    }
 ]
 ```
@ -364,7 +384,9 @@ Example response:
    "description": "test-2016-02-01",
    "id": 9,
    "is_shared": false,
-    "name": null
+    "name": null,
+    "online": true,
+    "status": "online"
 }
 ```

--- a/doc/api/settings.md
+++ b/doc/api/settings.md
@ -69,7 +69,7 @@ PUT /application/settings
 | `after_sign_up_text`                     | string           | no                                            | Text shown to the user after signing up                                                                                                                                                                                                                                                                                                                                                                                                                   |
 | `akismet_api_key`                        | string           | no                                            | API key for akismet spam protection                                                                                                                                                                                                                                                                                                                                                                                                                       |
 | `akismet_enabled`                        | boolean          | no                                            | Enable or disable akismet spam protection                                                                                                                                                                                                                                                                                                                                                                                                                 |
-| `circuitbreaker_access_retries           | integer          | no                                            | The number of attempts GitLab will make to access a storage.                                                                                                                                                                                                                                                                                                                                                                                              |
+| `circuitbreaker_access_retries`          | integer          | no                                            | The number of attempts GitLab will make to access a storage.                                                                                                                                                                                                                                                                                                                                                                                              |
 | `circuitbreaker_check_interval`          | integer          | no                                            | Number of seconds in between storage checks.                                                                                                                                                                                                                                                                                                                                                                                                              |
 | `circuitbreaker_failure_count_threshold` | integer          | no                                            | The number of failures of after which GitLab will completely prevent access to the storage.                                                                                                                                                                                                                                                                                                                                                               |
 | `circuitbreaker_failure_reset_time`      | integer          | no                                            | Time in seconds GitLab will keep storage failure information. When no failures occur during this time, the failure information is reset.                                                                                                                                                                                                                                                                                                                  |
--- a/doc/development/gitaly.md
+++ b/doc/development/gitaly.md
@ -97,6 +97,29 @@ describe 'Gitaly Request count tests' do
 end
 ```

+## Running tests with a locally modified version of Gitaly
+
+Normally, gitlab-ce/ee tests use a local clone of Gitaly in `tmp/tests/gitaly`
+pinned at the version specified in GITALY_SERVER_VERSION. If you want
+to run tests locally against a modified version of Gitaly you can
+replace `tmp/tests/gitaly` with a symlink.
+
+```shell
+rm -rf tmp/tests/gitaly
+ln -s /path/to/gitaly tmp/tests/gitaly
+```
+
+Make sure you run `make` in your local Gitaly directory before running
+tests. Otherwise, Gitaly will fail to boot.
+
+If you make changes to your local Gitaly in between test runs you need
+to manually run `make` again.
+
+Note that CI tests will not use your locally modified version of
+Gitaly. To use a custom Gitaly version in CI you need to update
+GITALY_SERVER_VERSION. You can use the format `=revision` to use a
+non-tagged commit from https://gitlab.com/gitlab-org/gitaly in CI.
+
 ---

 [Return to Development documentation](README.md)
--- a/doc/development/testing_guide/end_to_end_tests.md
+++ b/doc/development/testing_guide/end_to_end_tests.md
@ -0,0 +1,80 @@
+# End-to-End Testing
+
+## What is End-to-End testing?
+
+End-to-End testing is a strategy used to check whether your application works
+as expected across entire software stack and architecture, including
+integration of all microservices and components that are supposed to work
+together.
+
+## How do we test GitLab?
+
+We use [Omnibus GitLab][omnibus-gitlab] to build GitLab packages and then we
+test these packages using [GitLab QA][gitlab-qa] project, which is entirely
+black-box, click-driven testing framework.
+
+### Testing nightly builds
+
+We run scheduled pipeline each night to test nightly builds created by Omnibus.
+You can find these nightly pipelines at [GitLab QA pipelines page][gitlab-qa-pipelines].
+
+### Testing code in merge requests
+
+It is possible to run end-to-end tests (eventually being run within a
+[GitLab QA pipeline][gitlab-qa-pipelines]) for a merge request by triggering
+the `package-qa` manual action, that should be present in a merge request
+widget.
+
+Mmanual action that starts end-to-end tests is also available in merge requests
+in Omnibus GitLab project.
+
+Below you can read more about how to use it and how does it work.
+
+#### How does it work?
+
+Currently, we are using _multi-project pipeline_-like approach to run QA
+pipelines.
+
+1. Developer triggers a manual action, that can be found in CE and EE merge
+requests. This starts a chain of pipelines in multiple projects.
+
+1. The script being executed triggers a pipeline in GitLab Omnibus and waits
+for the resulting status. We call this a _status attribution_.
+
+1. GitLab packages are being built in Omnibus pipeline. Packages are going to be
+pushed to Container Registry.
+
+1. When packages are ready, and available in the registry, a final step in the
+pipeline, that is now running in Omnibus, triggers a new pipeline in the GitLab
+QA project. It also waits for a resulting status.
+
+1. GitLab QA pulls images from the registry, spins-up containers and runs tests
+against a test environment that has been just orchestrated by the `gitlab-qa`
+tool.
+
+1. The result of the GitLab QA pipeline is being propagated upstream, through
+Omnibus, back to CE / EE merge request.
+
+#### How do I write tests?
+
+In order to write new tests, you first need to learn more about GitLab QA
+architecture. See the [documentation about it][gitlab-qa-architecture] in
+GitLab QA project.
+
+Once you decided where to put test environment orchestration scenarios and
+instance specs, take a look at the [relevant documentation][instance-qa-readme]
+and examples in [the `qa/` directory][instance-qa-examples].
+
+## Where can I ask for help?
+
+You can ask question in the `#qa` channel on Slack (GitLab internal) or you can
+find an issue you would like to work on in [the issue tracker][gitlab-qa-issues]
+and start a new discussion there.
+
+[omnibus-gitlab]: https://gitlab.com/gitlab-org/omnibus-gitlab
+[gitlab-qa]: https://gitlab.com/gitlab-org/gitlab-qa
+[gitlab-qa-pipelines]: https://gitlab.com/gitlab-org/gitlab-qa/pipelines
+[gitlab-qa-architecture]: https://gitlab.com/gitlab-org/gitlab-qa/blob/master/docs/architecture.md
+[gitlab-qa-issues]: https://gitlab.com/gitlab-org/gitlab-qa/issues
+[instance-qa-readme]: https://gitlab.com/gitlab-org/gitlab-ce/tree/master/qa/README.md
+[instance-qa-examples]: https://gitlab.com/gitlab-org/gitlab-ce/tree/master/qa/qa
--- a/doc/development/testing_guide/index.md
+++ b/doc/development/testing_guide/index.md
@ -65,6 +65,13 @@ Everything you should know about how to test Rake tasks.

 ---

+## [End-to-end tests](end_to_end_tests.md)
+
+Everything you should know about how to run end-to-end tests using
+[GitLab QA][gitlab-qa] testing framework.
+
+---
+
 ## Spinach (feature) tests

 GitLab [moved from Cucumber to Spinach](https://github.com/gitlabhq/gitlabhq/pull/1426)
@ -89,3 +96,4 @@ test should be re-implemented using RSpec instead.
 [Capybara]: https://github.com/teamcapybara/capybara
 [Karma]: http://karma-runner.github.io/
 [Jasmine]: https://jasmine.github.io/
+[gitlab-qa]: https://gitlab.com/gitlab-org/gitlab-qa
--- a/doc/development/testing_guide/testing_levels.md
+++ b/doc/development/testing_guide/testing_levels.md
@ -121,6 +121,9 @@ running feature tests (i.e. using Capybara) against it.
 The actual test scenarios and steps are [part of GitLab Rails] so that they're
 always in-sync with the codebase.

+Read a separate document about [end-to-end tests](end_to_end_tests.md) to
+learn more.
+
 [multiple pieces]: ../architecture.md#components
 [GitLab Shell]: https://gitlab.com/gitlab-org/gitlab-shell
 [GitLab Workhorse]: https://gitlab.com/gitlab-org/gitlab-workhorse
--- a/doc/user/project/merge_requests/fast_forward_merge.md
+++ b/doc/user/project/merge_requests/fast_forward_merge.md
@ -9,7 +9,7 @@ When the fast-forward merge ([`--ff-only`][ffonly]) setting is enabled, no merge
 commits will be created and all merges are fast-forwarded, which means that
 merging is only allowed if the branch could be fast-forwarded.

-When a fast-forward merge is not possible, the user must rebase the branch manually.
+When a fast-forward merge is not possible, the user is given the option to rebase.

 ## Use cases

@ -25,7 +25,7 @@ merge commits. In such cases, the fast-forward merge is the perfect candidate.
 Now, when you visit the merge request page, you will be able to accept it
 **only if a fast-forward merge is possible**.

-![Fast forward merge request](img/ff_merge_mr.png)
+![Fast forward merge request](img/ff_merge_rebase.png)

 If the target branch is ahead of the source branch, you need to rebase the
 source branch locally before you will be able to do a fast-forward merge.
--- a/doc/user/project/merge_requests/img/ff_merge_mr.png
+++ b/doc/user/project/merge_requests/img/ff_merge_mr.png
--- a/doc/user/project/merge_requests/img/ff_merge_rebase.png
+++ b/doc/user/project/merge_requests/img/ff_merge_rebase.png
--- a/features/project/ff_merge_requests.feature
+++ b/features/project/ff_merge_requests.feature
@ -22,3 +22,20 @@ Feature: Project Ff Merge Requests
    Then I should see ff-only merge button
    When I accept this merge request
    Then I should see merged request
+
+  @javascript
+  Scenario: I do rebase before ff-only merge
+    Given ff merge enabled
+    And rebase before merge enabled
+    When I visit merge request page "Bug NS-05"
+    Then I should see rebase button
+    When I press rebase button
+    Then I should see rebase in progress message
+
+  @javascript
+  Scenario: I do rebase before regular merge
+    Given rebase before merge enabled
+    When I visit merge request page "Bug NS-05"
+    Then I should see rebase button
+    When I press rebase button
+    Then I should see rebase in progress message
--- a/features/steps/project/ff_merge_requests.rb
+++ b/features/steps/project/ff_merge_requests.rb
@ -17,6 +17,10 @@ class Spinach::Features::ProjectFfMergeRequests < Spinach::FeatureSteps
           author: project.users.first)
  end

+  step 'merge request is mergeable' do
+    expect(page).to have_button 'Merge'
+  end
+
  step 'I should see ff-only merge button' do
    expect(page).to have_content "Fast-forward merge without a merge commit"
    expect(page).to have_button 'Merge'
@ -45,6 +49,10 @@ class Spinach::Features::ProjectFfMergeRequests < Spinach::FeatureSteps
    project.save!
  end

+  step 'I should see rebase button' do
+    expect(page).to have_button "Rebase"
+  end
+
  step 'merge request "Bug NS-05" is rebased' do
    merge_request.source_branch = 'flatten-dir'
    merge_request.target_branch = 'improve/awesome'
@ -59,6 +67,20 @@ class Spinach::Features::ProjectFfMergeRequests < Spinach::FeatureSteps
    merge_request.save!
  end

+  step 'rebase before merge enabled' do
+    project = merge_request.target_project
+    project.merge_requests_rebase_enabled = true
+    project.save!
+  end
+
+  step 'I press rebase button' do
+    click_button "Rebase"
+  end
+
+  step "I should see rebase in progress message" do
+    expect(page).to have_content("Rebase in progress")
+  end
+
  def merge_request
    @merge_request ||= MergeRequest.find_by!(title: "Bug NS-05")
  end
--- a/lib/api/api.rb
+++ b/lib/api/api.rb
@ -119,6 +119,7 @@ module API
    mount ::API::Features
    mount ::API::Files
    mount ::API::Groups
+    mount ::API::GroupMilestones
    mount ::API::Internal
    mount ::API::Issues
    mount ::API::Jobs
@ -129,8 +130,6 @@ module API
    mount ::API::Members
    mount ::API::MergeRequestDiffs
    mount ::API::MergeRequests
-    mount ::API::ProjectMilestones
-    mount ::API::GroupMilestones
    mount ::API::Namespaces
    mount ::API::Notes
    mount ::API::NotificationSettings
@ -139,6 +138,7 @@ module API
    mount ::API::PipelineSchedules
    mount ::API::ProjectHooks
    mount ::API::Projects
+    mount ::API::ProjectMilestones
    mount ::API::ProjectSnippets
    mount ::API::ProtectedBranches
    mount ::API::Repositories
--- a/lib/api/boards.rb
+++ b/lib/api/boards.rb
@ -1,45 +1,46 @@
 module API
  class Boards < Grape::API
+    include BoardsResponses
    include PaginationParams

    before { authenticate! }

+    helpers do
+      def board_parent
+        user_project
+      end
+    end
+
    params do
      requires :id, type: String, desc: 'The ID of a project'
    end
    resource :projects, requirements: API::PROJECT_ENDPOINT_REQUIREMENTS do
-      desc 'Get all project boards' do
-        detail 'This feature was introduced in 8.13'
-        success Entities::Board
-      end
-      params do
-        use :pagination
-      end
-      get ':id/boards' do
-        authorize!(:read_board, user_project)
-        present paginate(user_project.boards), with: Entities::Board
+      segment ':id/boards' do
+        desc 'Get all project boards' do
+          detail 'This feature was introduced in 8.13'
+          success Entities::Board
+        end
+        params do
+          use :pagination
+        end
+        get '/' do
+          authorize!(:read_board, user_project)
+          present paginate(board_parent.boards), with: Entities::Board
+        end
+
+        desc 'Find a project board' do
+          detail 'This feature was introduced in 10.4'
+          success Entities::Board
+        end
+        get '/:board_id' do
+          present board, with: Entities::Board
+        end
      end

      params do
        requires :board_id, type: Integer, desc: 'The ID of a board'
      end
      segment ':id/boards/:board_id' do
-        helpers do
-          def project_board
-            board = user_project.boards.first
-
-            if params[:board_id] == board.id
-              board
-            else
-              not_found!('Board')
-            end
-          end
-
-          def board_lists
-            project_board.lists.destroyable
-          end
-        end
-
        desc 'Get the lists of a project board' do
          detail 'Does not include `done` list. This feature was introduced in 8.13'
          success Entities::List
@ -72,22 +73,13 @@ module API
          requires :label_id, type: Integer, desc: 'The ID of an existing label'
        end
        post '/lists' do
-          unless available_labels.exists?(params[:label_id])
+          unless available_labels_for(user_project).exists?(params[:label_id])
            render_api_error!({ error: 'Label not found!' }, 400)
          end

          authorize!(:admin_list, user_project)

-          service = ::Boards::Lists::CreateService.new(user_project, current_user,
-            { label_id: params[:label_id] })
-
-          list = service.execute(project_board)
-
-          if list.valid?
-            present list, with: Entities::List
-          else
-            render_validation_error!(list)
-          end
+          create_list
        end

        desc 'Moves a board list to a new position' do
@ -99,18 +91,11 @@ module API
          requires :position, type: Integer, desc: 'The position of the list'
        end
        put '/lists/:list_id' do
-          list = project_board.lists.movable.find(params[:list_id])
+          list = board_lists.find(params[:list_id])

          authorize!(:admin_list, user_project)

-          service = ::Boards::Lists::MoveService.new(user_project, current_user,
-              { position: params[:position] })
-
-          if service.execute(list)
-            present list, with: Entities::List
-          else
-            render_api_error!({ error: "List could not be moved!" }, 400)
-          end
+          move_list(list)
        end

        desc 'Delete a board list' do
@ -124,12 +109,7 @@ module API
          authorize!(:admin_list, user_project)
          list = board_lists.find(params[:list_id])

-          destroy_conditionally!(list) do |list|
-            service = ::Boards::Lists::DestroyService.new(user_project, current_user)
-            unless service.execute(list)
-              render_api_error!({ error: 'List could not be deleted!' }, 400)
-            end
-          end
+          destroy_list(list)
        end
      end
    end
--- a/lib/api/boards_responses.rb
+++ b/lib/api/boards_responses.rb
@ -0,0 +1,50 @@
+module API
+  module BoardsResponses
+    extend ActiveSupport::Concern
+
+    included do
+      helpers do
+        def board
+          board_parent.boards.find(params[:board_id])
+        end
+
+        def board_lists
+          board.lists.destroyable
+        end
+
+        def create_list
+          create_list_service =
+            ::Boards::Lists::CreateService.new(board_parent, current_user, { label_id: params[:label_id] })
+
+          list = create_list_service.execute(board)
+
+          if list.valid?
+            present list, with: Entities::List
+          else
+            render_validation_error!(list)
+          end
+        end
+
+        def move_list(list)
+          move_list_service =
+            ::Boards::Lists::MoveService.new(board_parent, current_user, { position: params[:position].to_i })
+
+          if move_list_service.execute(list)
+            present list, with: Entities::List
+          else
+            render_api_error!({ error: "List could not be moved!" }, 400)
+          end
+        end
+
+        def destroy_list(list)
+          destroy_conditionally!(list) do |list|
+            service = ::Boards::Lists::DestroyService.new(board_parent, current_user)
+            unless service.execute(list)
+              render_api_error!({ error: 'List could not be deleted!' }, 400)
+            end
+          end
+        end
+      end
+    end
+  end
+end
--- a/lib/api/entities.rb
+++ b/lib/api/entities.rb
@ -791,6 +791,8 @@ module API

    class Board < Grape::Entity
      expose :id
+      expose :project, using: Entities::BasicProjectDetails
+
      expose :lists, using: Entities::List do |board|
        board.lists.destroyable
      end
@ -862,6 +864,8 @@ module API
      expose :active
      expose :is_shared
      expose :name
+      expose :online?, as: :online
+      expose :status
    end

    class RunnerDetails < Runner
@ -1133,6 +1137,7 @@ module API
    class PagesDomainBasic < Grape::Entity
      expose :domain
      expose :url
+      expose :project_id
      expose :certificate,
        as: :certificate_expiration,
        if: ->(pages_domain, _) { pages_domain.certificate? },
--- a/lib/api/helpers.rb
+++ b/lib/api/helpers.rb
@ -74,8 +74,15 @@ module API
      page || not_found!('Wiki Page')
    end

-    def available_labels
-      @available_labels ||= LabelsFinder.new(current_user, project_id: user_project.id).execute
+    def available_labels_for(label_parent)
+      search_params =
+        if label_parent.is_a?(Project)
+          { project_id: label_parent.id }
+        else
+          { group_id: label_parent.id, only_group_labels: true }
+        end
+
+      LabelsFinder.new(current_user, search_params).execute
    end

    def find_user(id)
@ -141,7 +148,9 @@ module API
    end

    def find_project_label(id)
-      label = available_labels.find_by_id(id) || available_labels.find_by_title(id)
+      labels = available_labels_for(user_project)
+      label = labels.find_by_id(id) || labels.find_by_title(id)
+
      label || not_found!('Label')
    end

--- a/lib/api/issues.rb
+++ b/lib/api/issues.rb
@ -277,6 +277,19 @@ module API
        present paginate(merge_requests), with: Entities::MergeRequestBasic, current_user: current_user, project: user_project
      end

+      desc 'List participants for an issue'  do
+        success Entities::UserBasic
+      end
+      params do
+        requires :issue_iid, type: Integer, desc: 'The internal ID of a project issue'
+      end
+      get ':id/issues/:issue_iid/participants' do
+        issue = find_project_issue(params[:issue_iid])
+        participants = ::Kaminari.paginate_array(issue.participants)
+
+        present paginate(participants), with: Entities::UserBasic, current_user: current_user, project: user_project
+      end
+
      desc 'Get the user agent details for an issue' do
        success Entities::UserAgentDetail
      end
--- a/lib/api/labels.rb
+++ b/lib/api/labels.rb
@ -15,7 +15,7 @@ module API
        use :pagination
      end
      get ':id/labels' do
-        present paginate(available_labels), with: Entities::Label, current_user: current_user, project: user_project
+        present paginate(available_labels_for(user_project)), with: Entities::Label, current_user: current_user, project: user_project
      end

      desc 'Create a new label' do
@ -30,7 +30,7 @@ module API
      post ':id/labels' do
        authorize! :admin_label, user_project

-        label = available_labels.find_by(title: params[:name])
+        label = available_labels_for(user_project).find_by(title: params[:name])
        conflict!('Label already exists') if label

        priority = params.delete(:priority)
--- a/lib/api/merge_requests.rb
+++ b/lib/api/merge_requests.rb
@ -185,6 +185,16 @@ module API
        present merge_request, with: Entities::MergeRequest, current_user: current_user, project: user_project
      end

+      desc 'Get the participants of a merge request' do
+        success Entities::UserBasic
+      end
+      get ':id/merge_requests/:merge_request_iid/participants' do
+        merge_request = find_merge_request_with_access(params[:merge_request_iid])
+        participants = ::Kaminari.paginate_array(merge_request.participants)
+
+        present paginate(participants), with: Entities::UserBasic
+      end
+
      desc 'Get the commits of a merge request' do
        success Entities::Commit
      end
--- a/lib/api/v3/labels.rb
+++ b/lib/api/v3/labels.rb
@ -11,7 +11,7 @@ module API
          success ::API::Entities::Label
        end
        get ':id/labels' do
-          present available_labels, with: ::API::Entities::Label, current_user: current_user, project: user_project
+          present available_labels_for(user_project), with: ::API::Entities::Label, current_user: current_user, project: user_project
        end

        desc 'Delete an existing label' do
--- a/lib/banzai/filter/mermaid_filter.rb
+++ b/lib/banzai/filter/mermaid_filter.rb
@ -2,16 +2,7 @@ module Banzai
  module Filter
    class MermaidFilter < HTML::Pipeline::Filter
      def call
-        doc.css('pre[lang="mermaid"]').add_class('mermaid')
-        doc.css('pre[lang="mermaid"]').add_class('js-render-mermaid')
-
-        # The `<code></code>` blocks are added in the lib/banzai/filter/syntax_highlight_filter.rb
-        # We want to keep context and consistency, so we the blocks are added for all filters.
-        # Details: https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/15107/diffs?diff_id=7962900#note_45495859
-        doc.css('pre[lang="mermaid"]').each do |pre|
-          document = pre.at('code')
-          document.replace(document.content)
-        end
+        doc.css('pre[lang="mermaid"] > code').add_class('js-render-mermaid')

        doc
      end
--- a/lib/gitlab/encoding_helper.rb
+++ b/lib/gitlab/encoding_helper.rb
@ -14,14 +14,7 @@ module Gitlab
    ENCODING_CONFIDENCE_THRESHOLD = 50

    def encode!(message)
-      return nil unless message.respond_to?(:force_encoding)
-      return message if message.encoding == Encoding::UTF_8 && message.valid_encoding?
-
-      if message.respond_to?(:frozen?) && message.frozen?
-        message = message.dup
-      end
-
-      message.force_encoding("UTF-8")
+      message = force_encode_utf8(message)
      return message if message.valid_encoding?

      # return message if message type is binary
@ -35,6 +28,8 @@ module Gitlab

      # encode and clean the bad chars
      message.replace clean(message)
+    rescue ArgumentError
+      return nil
    rescue
      encoding = detect ? detect[:encoding] : "unknown"
      "--broken encoding: #{encoding}"
@ -54,8 +49,8 @@ module Gitlab
    end

    def encode_utf8(message)
-      return nil unless message.is_a?(String)
-      return message if message.encoding == Encoding::UTF_8 && message.valid_encoding?
+      message = force_encode_utf8(message)
+      return message if message.valid_encoding?

      detect = CharlockHolmes::EncodingDetector.detect(message)
      if detect && detect[:encoding]
@ -69,6 +64,8 @@ module Gitlab
      else
        clean(message)
      end
+    rescue ArgumentError
+      return nil
    end

    def encode_binary(s)
@ -83,6 +80,15 @@ module Gitlab

    private

+    def force_encode_utf8(message)
+      raise ArgumentError unless message.respond_to?(:force_encoding)
+      return message if message.encoding == Encoding::UTF_8 && message.valid_encoding?
+
+      message = message.dup if message.respond_to?(:frozen?) && message.frozen?
+
+      message.force_encoding("UTF-8")
+    end
+
    def clean(message)
      message.encode("UTF-16BE", undef: :replace, invalid: :replace, replace: "")
        .encode("UTF-8")
--- a/lib/gitlab/git.rb
+++ b/lib/gitlab/git.rb
@ -11,7 +11,7 @@ module Gitlab
      include Gitlab::EncodingHelper

      def ref_name(ref)
-        encode_utf8(ref).sub(/\Arefs\/(tags|heads|remotes)\//, '')
+        encode!(ref).sub(/\Arefs\/(tags|heads|remotes)\//, '')
      end

      def branch_name(ref)
--- a/Show more
+++ b/Show more