Merge branch 'master' of gitlab.com:gitlab-org/gitlab-ce

72 files changed, 813 insertions, 270 deletions

diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 07969475503..d4b375696c2 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -256,7 +256,7 @@ flaky-examples-check:
     USE_BUNDLE_INSTALL: "false"
     NEW_FLAKY_SPECS_REPORT: rspec_flaky/report-new.json
   stage: post-test
-  allow_failure: yes
+  allow_failure: true
   retry: 0
   only:
     - branches
@@ -416,7 +416,6 @@ ee_compat_check:
     - /^[\d-]+-stable(-ee)?/
     - branches@gitlab-org/gitlab-ee
     - branches@gitlab/gitlab-ee
-  allow_failure: no
   retry: 0
   artifacts:
     name: "${CI_JOB_NAME}_${CI_COMIT_REF_NAME}_${CI_COMMIT_SHA}"
diff --git a/GITALY_SERVER_VERSION b/GITALY_SERVER_VERSION
index 7f422a161ae..524456c7767 100644
--- a/GITALY_SERVER_VERSION
+++ b/GITALY_SERVER_VERSION
@@ -1 +1 @@
-0.53.0
+0.54.0
diff --git a/Gemfile b/Gemfile
index e357d76328a..5630f91c054 100644
--- a/Gemfile
+++ b/Gemfile
@@ -398,7 +398,7 @@ group :ed25519 do
 end
 
 # Gitaly GRPC client
-gem 'gitaly-proto', '~> 0.52.0', require: 'gitaly'
+gem 'gitaly-proto', '~> 0.54.0', require: 'gitaly'
 
 gem 'toml-rb', '~> 0.3.15', require: false
 
diff --git a/Gemfile.lock b/Gemfile.lock
index dc56e6e8f82..8f6ffa58e5d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -275,7 +275,7 @@ GEM
       po_to_json (>= 1.0.0)
       rails (>= 3.2.0)
     gherkin-ruby (0.3.2)
-    gitaly-proto (0.52.0)
+    gitaly-proto (0.54.0)
       google-protobuf (~> 3.1)
       grpc (~> 1.0)
     github-linguist (4.7.6)
@@ -355,10 +355,10 @@ GEM
       rake
     grape_logging (1.7.0)
       grape
-    grpc (1.6.6)
+    grpc (1.7.2)
       google-protobuf (~> 3.1)
       googleapis-common-protos-types (~> 1.0.0)
-      googleauth (~> 0.5.1)
+      googleauth (>= 0.5.1, < 0.7)
     haml (4.0.7)
       tilt
     haml_lint (0.26.0)
@@ -1034,7 +1034,7 @@ DEPENDENCIES
   gettext (~> 3.2.2)
   gettext_i18n_rails (~> 1.8.0)
   gettext_i18n_rails_js (~> 1.2.0)
-  gitaly-proto (~> 0.52.0)
+  gitaly-proto (~> 0.54.0)
   github-linguist (~> 4.7.0)
   gitlab-flowdock-git-hook (~> 1.0.1)
   gitlab-markup (~> 1.6.2)
diff --git a/app/assets/javascripts/boards/boards_bundle.js b/app/assets/javascripts/boards/boards_bundle.js
index ef4093b59e3..20d23162940 100644
--- a/app/assets/javascripts/boards/boards_bundle.js
+++ b/app/assets/javascripts/boards/boards_bundle.js
@@ -1,12 +1,13 @@
 /* eslint-disable one-var, quote-props, comma-dangle, space-before-function-paren */
-/* global BoardService */
 
 import _ from 'underscore';
 import Vue from 'vue';
 import VueResource from 'vue-resource';
 import Flash from '../flash';
+import { __ } from '../locale';
 import FilteredSearchBoards from './filtered_search_boards';
 import eventHub from './eventhub';
+import sidebarEventHub from '../sidebar/event_hub';
 import './models/issue';
 import './models/label';
 import './models/list';
@@ -14,7 +15,7 @@ import './models/milestone';
 import './models/assignee';
 import './stores/boards_store';
 import './stores/modal_store';
-import './services/board_service';
+import BoardService from './services/board_service';
 import './mixins/modal_mixins';
 import './mixins/sortable_default_options';
 import './filters/due_date_filters';
@@ -77,11 +78,16 @@ $(() => {
       });
       Store.rootPath = this.boardsEndpoint;
 
-      // Listen for updateTokens event
       eventHub.$on('updateTokens', this.updateTokens);
+      eventHub.$on('newDetailIssue', this.updateDetailIssue);
+      eventHub.$on('clearDetailIssue', this.clearDetailIssue);
+      sidebarEventHub.$on('toggleSubscription', this.toggleSubscription);
     },
     beforeDestroy() {
       eventHub.$off('updateTokens', this.updateTokens);
+      eventHub.$off('newDetailIssue', this.updateDetailIssue);
+      eventHub.$off('clearDetailIssue', this.clearDetailIssue);
+      sidebarEventHub.$off('toggleSubscription', this.toggleSubscription);
     },
     mounted () {
       this.filterManager = new FilteredSearchBoards(Store.filter, true);
@@ -112,6 +118,46 @@ $(() => {
     methods: {
       updateTokens() {
         this.filterManager.updateTokens();
+      },
+      updateDetailIssue(newIssue) {
+        const sidebarInfoEndpoint = newIssue.sidebarInfoEndpoint;
+        if (sidebarInfoEndpoint && newIssue.subscribed === undefined) {
+          newIssue.setFetchingState('subscriptions', true);
+          BoardService.getIssueInfo(sidebarInfoEndpoint)
+            .then(res => res.json())
+            .then((data) => {
+              newIssue.setFetchingState('subscriptions', false);
+              newIssue.updateData({
+                subscribed: data.subscribed,
+              });
+            })
+            .catch(() => {
+              newIssue.setFetchingState('subscriptions', false);
+              Flash(__('An error occurred while fetching sidebar data'));
+            });
+        }
+
+        Store.detail.issue = newIssue;
+      },
+      clearDetailIssue() {
+        Store.detail.issue = {};
+      },
+      toggleSubscription(id) {
+        const issue = Store.detail.issue;
+        if (issue.id === id && issue.toggleSubscriptionEndpoint) {
+          issue.setFetchingState('subscriptions', true);
+          BoardService.toggleIssueSubscription(issue.toggleSubscriptionEndpoint)
+            .then(() => {
+              issue.setFetchingState('subscriptions', false);
+              issue.updateData({
+                subscribed: !issue.subscribed,
+              });
+            })
+            .catch(() => {
+              issue.setFetchingState('subscriptions', false);
+              Flash(__('An error occurred when toggling the notification subscription'));
+            });
+        }
       }
     },
   });
diff --git a/app/assets/javascripts/boards/components/board_card.js b/app/assets/javascripts/boards/components/board_card.vue
index 079fb6438b9..0b220a56e0b 100644
--- a/app/assets/javascripts/boards/components/board_card.js
+++ b/app/assets/javascripts/boards/components/board_card.vue
@@ -1,25 +1,11 @@
+<script>
 import './issue_card_inner';
+import eventHub from '../eventhub';
 
 const Store = gl.issueBoards.BoardsStore;
 
 export default {
   name: 'BoardsIssueCard',
-  template: `
-    <li class="card"
-      :class="{ 'user-can-drag': !disabled && issue.id, 'is-disabled': disabled || !issue.id, 'is-active': issueDetailVisible }"
-      :index="index"
-      :data-issue-id="issue.id"
-      @mousedown="mouseDown"
-      @mousemove="mouseMove"
-      @mouseup="showIssue($event)">
-      <issue-card-inner
-        :list="list"
-        :issue="issue"
-        :issue-link-base="issueLinkBase"
-        :root-path="rootPath"
-        :update-filters="true" />
-    </li>
-  `,
   components: {
     'issue-card-inner': gl.issueBoards.IssueCardInner,
   },
@@ -56,12 +42,30 @@ export default {
         this.showDetail = false;
 
         if (Store.detail.issue && Store.detail.issue.id === this.issue.id) {
-          Store.detail.issue = {};
+          eventHub.$emit('clearDetailIssue');
         } else {
-          Store.detail.issue = this.issue;
+          eventHub.$emit('newDetailIssue', this.issue);
           Store.detail.list = this.list;
         }
       }
     },
   },
 };
+</script>
+
+<template>
+  <li class="card"
+    :class="{ 'user-can-drag': !disabled && issue.id, 'is-disabled': disabled || !issue.id, 'is-active': issueDetailVisible }"
+    :index="index"
+    :data-issue-id="issue.id"
+    @mousedown="mouseDown"
+    @mousemove="mouseMove"
+    @mouseup="showIssue($event)">
+    <issue-card-inner
+      :list="list"
+      :issue="issue"
+      :issue-link-base="issueLinkBase"
+      :root-path="rootPath"
+      :update-filters="true" />
+  </li>
+</template>
diff --git a/app/assets/javascripts/boards/components/board_list.js b/app/assets/javascripts/boards/components/board_list.js
index 6159680f1e6..29aeb8e84aa 100644
--- a/app/assets/javascripts/boards/components/board_list.js
+++ b/app/assets/javascripts/boards/components/board_list.js
@@ -1,6 +1,6 @@
 /* global Sortable */
 import boardNewIssue from './board_new_issue';
-import boardCard from './board_card';
+import boardCard from './board_card.vue';
 import eventHub from '../eventhub';
 import loadingIcon from '../../vue_shared/components/loading_icon.vue';
 
diff --git a/app/assets/javascripts/boards/components/board_sidebar.js b/app/assets/javascripts/boards/components/board_sidebar.js
index 9ae5e270a4b..faa76da964f 100644
--- a/app/assets/javascripts/boards/components/board_sidebar.js
+++ b/app/assets/javascripts/boards/components/board_sidebar.js
@@ -5,12 +5,13 @@
 import Vue from 'vue';
 import Flash from '../../flash';
 import eventHub from '../../sidebar/event_hub';
-import AssigneeTitle from '../../sidebar/components/assignees/assignee_title';
-import Assignees from '../../sidebar/components/assignees/assignees';
+import assigneeTitle from '../../sidebar/components/assignees/assignee_title';
+import assignees from '../../sidebar/components/assignees/assignees';
 import DueDateSelectors from '../../due_date_select';
 import './sidebar/remove_issue';
 import IssuableContext from '../../issuable_context';
 import LabelsSelect from '../../labels_select';
+import subscriptions from '../../sidebar/components/subscriptions/subscriptions.vue';
 
 const Store = gl.issueBoards.BoardsStore;
 
@@ -117,11 +118,11 @@ gl.issueBoards.BoardSidebar = Vue.extend({
     new DueDateSelectors();
     new LabelsSelect();
     new Sidebar();
-    gl.Subscription.bindAll('.subscription');
   },
   components: {
+    assigneeTitle,
+    assignees,
     removeBtn: gl.issueBoards.RemoveIssueBtn,
-    'assignee-title': AssigneeTitle,
-    assignees: Assignees,
+    subscriptions,
   },
 });
diff --git a/app/assets/javascripts/boards/models/issue.js b/app/assets/javascripts/boards/models/issue.js
index 407db176446..10f85c1d676 100644
--- a/app/assets/javascripts/boards/models/issue.js
+++ b/app/assets/javascripts/boards/models/issue.js
@@ -17,6 +17,11 @@ class ListIssue {
     this.assignees = [];
     this.selected = false;
     this.position = obj.relative_position || Infinity;
+    this.isFetching = {
+      subscriptions: true,
+    };
+    this.sidebarInfoEndpoint = obj.issue_sidebar_endpoint;
+    this.toggleSubscriptionEndpoint = obj.toggle_subscription_endpoint;
 
     if (obj.milestone) {
       this.milestone = new ListMilestone(obj.milestone);
@@ -73,6 +78,14 @@ class ListIssue {
     return gl.issueBoards.BoardsStore.state.lists.filter(list => list.findIssue(this.id));
   }
 
+  updateData(newData) {
+    Object.assign(this, newData);
+  }
+
+  setFetchingState(key, value) {
+    this.isFetching[key] = value;
+  }
+
   update (url) {
     const data = {
       issue: {
diff --git a/app/assets/javascripts/boards/services/board_service.js b/app/assets/javascripts/boards/services/board_service.js
index 97e80afa3f8..fa7ddd25e1f 100644
--- a/app/assets/javascripts/boards/services/board_service.js
+++ b/app/assets/javascripts/boards/services/board_service.js
@@ -2,7 +2,7 @@
 
 import Vue from 'vue';
 
-class BoardService {
+export default class BoardService {
   constructor ({ boardsEndpoint, listsEndpoint, bulkUpdatePath, boardId }) {
     this.boards = Vue.resource(`${boardsEndpoint}{/id}.json`, {}, {
       issues: {
@@ -88,6 +88,14 @@ class BoardService {
 
     return this.issues.bulkUpdate(data);
   }
+
+  static getIssueInfo(endpoint) {
+    return Vue.http.get(endpoint);
+  }
+
+  static toggleIssueSubscription(endpoint) {
+    return Vue.http.post(endpoint);
+  }
 }
 
 window.BoardService = BoardService;
diff --git a/app/assets/javascripts/init_issuable_sidebar.js b/app/assets/javascripts/init_issuable_sidebar.js
index 1191e0b895e..ada693afc46 100644
--- a/app/assets/javascripts/init_issuable_sidebar.js
+++ b/app/assets/javascripts/init_issuable_sidebar.js
@@ -14,7 +14,6 @@ export default () => {
   });
   new LabelsSelect();
   new IssuableContext(sidebarOptions.currentUser);
-  gl.Subscription.bindAll('.subscription');
   new DueDateSelectors();
   window.sidebar = new Sidebar();
 };
diff --git a/app/assets/javascripts/main.js b/app/assets/javascripts/main.js
index cef79eec273..601ab90bb30 100644
--- a/app/assets/javascripts/main.js
+++ b/app/assets/javascripts/main.js
@@ -29,7 +29,6 @@ import './commit/image_file';
 // lib/utils
 import { handleLocationHash } from './lib/utils/common_utils';
 import './lib/utils/datetime_utility';
-import './lib/utils/pretty_time';
 import './lib/utils/url_utility';
 
 // behaviors
@@ -80,7 +79,6 @@ import './right_sidebar';
 import './search';
 import './search_autocomplete';
 import './smart_interval';
-import './subscription';
 import './subscription_select';
 import initBreadcrumbs from './breadcrumb';
 
diff --git a/app/assets/javascripts/sidebar/components/subscriptions/sidebar_subscriptions.vue b/app/assets/javascripts/sidebar/components/subscriptions/sidebar_subscriptions.vue
index 4ad3d469f25..25acc099699 100644
--- a/app/assets/javascripts/sidebar/components/subscriptions/sidebar_subscriptions.vue
+++ b/app/assets/javascripts/sidebar/components/subscriptions/sidebar_subscriptions.vue
@@ -3,6 +3,7 @@ import Store from '../../stores/sidebar_store';
 import Mediator from '../../sidebar_mediator';
 import eventHub from '../../event_hub';
 import Flash from '../../../flash';
+import { __ } from '../../../locale';
 import subscriptions from './subscriptions.vue';
 
 export default {
@@ -21,7 +22,7 @@ export default {
     onToggleSubscription() {
       this.mediator.toggleSubscription()
         .catch(() => {
-          Flash('Error occurred when toggling the notification subscription');
+          Flash(__('Error occurred when toggling the notification subscription'));
         });
     },
   },
diff --git a/app/assets/javascripts/sidebar/components/subscriptions/subscriptions.vue b/app/assets/javascripts/sidebar/components/subscriptions/subscriptions.vue
index a3a8213d63a..940e1764f3d 100644
--- a/app/assets/javascripts/sidebar/components/subscriptions/subscriptions.vue
+++ b/app/assets/javascripts/sidebar/components/subscriptions/subscriptions.vue
@@ -14,6 +14,10 @@ export default {
       type: Boolean,
       required: false,
     },
+    id: {
+      type: Number,
+      required: false,
+    },
   },
   components: {
     loadingButton,
@@ -32,7 +36,7 @@ export default {
   },
   methods: {
     toggleSubscription() {
-      eventHub.$emit('toggleSubscription');
+      eventHub.$emit('toggleSubscription', this.id);
     },
   },
 };
diff --git a/app/assets/javascripts/subscription.js b/app/assets/javascripts/subscription.js
deleted file mode 100644
index bb4d68fcd49..00000000000
--- a/app/assets/javascripts/subscription.js
+++ /dev/null
@@ -1,45 +0,0 @@
-class Subscription {
-  constructor(containerElm) {
-    this.containerElm = containerElm;
-
-    const subscribeButton = containerElm.querySelector('.js-subscribe-button');
-    if (subscribeButton) {
-      // remove class so we don't bind twice
-      subscribeButton.classList.remove('js-subscribe-button');
-      subscribeButton.addEventListener('click', this.toggleSubscription.bind(this));
-    }
-  }
-
-  toggleSubscription(event) {
-    const button = event.currentTarget;
-    const buttonSpan = button.querySelector('span');
-    if (!buttonSpan || button.classList.contains('disabled')) {
-      return;
-    }
-    button.classList.add('disabled');
-
-    const isSubscribed = buttonSpan.innerHTML.trim().toLowerCase() !== 'subscribe';
-    const toggleActionUrl = this.containerElm.dataset.url;
-
-    $.post(toggleActionUrl, () => {
-      button.classList.remove('disabled');
-
-      // hack to allow this to work with the issue boards Vue object
-      if (document.querySelector('html').classList.contains('issue-boards-page')) {
-        gl.issueBoards.boardStoreIssueSet(
-          'subscribed',
-          !gl.issueBoards.BoardsStore.detail.issue.subscribed,
-        );
-      } else {
-        buttonSpan.innerHTML = isSubscribed ? 'Subscribe' : 'Unsubscribe';
-      }
-    });
-  }
-
-  static bindAll(selector) {
-    [].forEach.call(document.querySelectorAll(selector), elm => new Subscription(elm));
-  }
-}
-
-window.gl = window.gl || {};
-window.gl.Subscription = Subscription;
diff --git a/app/assets/javascripts/vue_shared/components/icon.vue b/app/assets/javascripts/vue_shared/components/icon.vue
index 2e5f9f1088f..8f116233e72 100644
--- a/app/assets/javascripts/vue_shared/components/icon.vue
+++ b/app/assets/javascripts/vue_shared/components/icon.vue
@@ -6,10 +6,9 @@
   Sample configuration:
 
   <icon
-    :img-src="userAvatarSrc"
-    :img-alt="tooltipText"
-    :tooltip-text="tooltipText"
-    tooltip-placement="top"
+    name="retry"
+    :size="32"
+    css-classes="top"
   />
 
 */
diff --git a/app/assets/javascripts/vue_shared/components/markdown/header.vue b/app/assets/javascripts/vue_shared/components/markdown/header.vue
index 70f5fc1d664..6c575d8eb49 100644
--- a/app/assets/javascripts/vue_shared/components/markdown/header.vue
+++ b/app/assets/javascripts/vue_shared/components/markdown/header.vue
@@ -50,7 +50,9 @@
 <template>
   <div class="md-header">
     <ul class="nav-links clearfix">
-      <li :class="{ active: !previewMarkdown }">
+      <li
+        class="md-header-tab"
+        :class="{ active: !previewMarkdown }">
         <a
           class="js-write-link"
           href="#md-write-holder"
@@ -59,7 +61,9 @@
           Write
         </a>
       </li>
-      <li :class="{ active: previewMarkdown }">
+      <li
+        class="md-header-tab"
+        :class="{ active: previewMarkdown }">
         <a
           class="js-preview-link"
           href="#md-preview-holder"
@@ -68,56 +72,52 @@
           Preview
         </a>
       </li>
-      <li class="pull-right">
-        <div class="toolbar-group">
-          <toolbar-button
-            tag="**"
-            button-title="Add bold text"
-            icon="bold" />
-          <toolbar-button
-            tag="*"
-            button-title="Add italic text"
-            icon="italic" />
-          <toolbar-button
-            tag="> "
-            :prepend="true"
-            button-title="Insert a quote"
-            icon="quote" />
-          <toolbar-button
-            tag="`"
-            tag-block="```"
-            button-title="Insert code"
-            icon="code" />
-          <toolbar-button
-            tag="* "
-            :prepend="true"
-            button-title="Add a bullet list"
-            icon="list-bulleted" />
-          <toolbar-button
-            tag="1. "
-            :prepend="true"
-            button-title="Add a numbered list"
-            icon="list-numbered" />
-          <toolbar-button
-            tag="* [ ] "
-            :prepend="true"
-            button-title="Add a task list"
-            icon="task-done" />
-        </div>
-        <div class="toolbar-group">
-          <button
-            v-tooltip
-            aria-label="Go full screen"
-            class="toolbar-btn js-zen-enter"
-            data-container="body"
-            tabindex="-1"
-            title="Go full screen"
-            type="button">
-            <icon
-              name="screen-full">
-            </icon>
-          </button>
-        </div>
+      <li class="md-header-toolbar">
+        <toolbar-button
+          tag="**"
+          button-title="Add bold text"
+          icon="bold" />
+        <toolbar-button
+          tag="*"
+          button-title="Add italic text"
+          icon="italic" />
+        <toolbar-button
+          tag="> "
+          :prepend="true"
+          button-title="Insert a quote"
+          icon="quote" />
+        <toolbar-button
+          tag="`"
+          tag-block="```"
+          button-title="Insert code"
+          icon="code" />
+        <toolbar-button
+          tag="* "
+          :prepend="true"
+          button-title="Add a bullet list"
+          icon="list-bulleted" />
+        <toolbar-button
+          tag="1. "
+          :prepend="true"
+          button-title="Add a numbered list"
+          icon="list-numbered" />
+        <toolbar-button
+          tag="* [ ] "
+          :prepend="true"
+          button-title="Add a task list"
+          icon="task-done" />
+        <button
+          v-tooltip
+          aria-label="Go full screen"
+          class="toolbar-btn toolbar-fullscreen-btn js-zen-enter"
+          data-container="body"
+          tabindex="-1"
+          title="Go full screen"
+          type="button">
+          <icon
+            name="screen-full">
+          </icon>
+        </button>
       </li>
     </ul>
   </div>
diff --git a/app/assets/javascripts/vue_shared/components/markdown/toolbar_button.vue b/app/assets/javascripts/vue_shared/components/markdown/toolbar_button.vue
index b930fb116a3..e3e41f8f0ca 100644
--- a/app/assets/javascripts/vue_shared/components/markdown/toolbar_button.vue
+++ b/app/assets/javascripts/vue_shared/components/markdown/toolbar_button.vue
@@ -40,7 +40,7 @@
   <button
     v-tooltip
     type="button"
-    class="toolbar-btn js-md hidden-xs"
+    class="toolbar-btn js-md"
     tabindex="-1"
     data-container="body"
     :data-md-tag="tag"
diff --git a/app/assets/stylesheets/framework/common.scss b/app/assets/stylesheets/framework/common.scss
index bbbb73201be..5e4ddf366ef 100644
--- a/app/assets/stylesheets/framework/common.scss
+++ b/app/assets/stylesheets/framework/common.scss
@@ -430,6 +430,7 @@ img.emoji {
 /** COMMON CLASSES **/
 .prepend-top-0 { margin-top: 0; }
 .prepend-top-5 { margin-top: 5px; }
+.prepend-top-8 { margin-top: $grid-size; }
 .prepend-top-10 { margin-top: 10px; }
 .prepend-top-15 { margin-top: 15px; }
 .prepend-top-default { margin-top: $gl-padding !important; }
diff --git a/app/assets/stylesheets/framework/markdown_area.scss b/app/assets/stylesheets/framework/markdown_area.scss
index cd6f94fb354..5389eb0a5f2 100644
--- a/app/assets/stylesheets/framework/markdown_area.scss
+++ b/app/assets/stylesheets/framework/markdown_area.scss
@@ -57,6 +57,7 @@
 .md-header {
   .nav-links {
     a {
+      width: 100%;
       padding-top: 0;
       line-height: 19px;
 
@@ -72,6 +73,28 @@
   }
 }
 
+.md-header-tab {
+  @media(max-width: $screen-xs-max) {
+    flex: 1;
+    width: 100%;
+    border-bottom: 1px solid $border-color;
+    text-align: center;
+  }
+}
+
+.md-header-toolbar {
+  margin-left: auto;
+
+  @media(max-width: $screen-xs-max) {
+    flex: none;
+    display: flex;
+    justify-content: center;
+    width: 100%;
+    padding-top: $gl-padding-top;
+    padding-bottom: $gl-padding-top;
+  }
+}
+
 .referenced-users {
   color: $gl-text-color;
   padding-top: 10px;
@@ -126,16 +149,6 @@
   }
 }
 
-.toolbar-group {
-  float: left;
-  margin-right: -5px;
-  margin-left: $gl-padding;
-
-  &:first-child {
-    margin-left: 0;
-  }
-}
-
 .toolbar-btn {
   float: left;
   padding: 0 7px;
@@ -158,6 +171,16 @@
   }
 }
 
+.toolbar-fullscreen-btn {
+  margin-left: $gl-padding;
+  margin-right: -5px;
+
+  @media(max-width: $screen-xs-max) {
+    margin-left: 0;
+    margin-right: 0;
+  }
+}
+
 .atwho-view {
   overflow-y: auto;
   overflow-x: hidden;
diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index 2087fe81411..b2ec491146f 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -196,7 +196,11 @@ class ApplicationController < ActionController::Base
   end
 
   def check_password_expiration
-    if current_user && current_user.password_expires_at && current_user.password_expires_at < Time.now && !current_user.ldap_user?
+    return if session[:impersonator_id] || current_user&.ldap_user?
+
+    password_expires_at = current_user&.password_expires_at
+
+    if password_expires_at && password_expires_at < Time.now
       return redirect_to new_profile_password_path
     end
   end
diff --git a/app/controllers/boards/issues_controller.rb b/app/controllers/boards/issues_controller.rb
index 737656b3dcc..f8049b20b9f 100644
--- a/app/controllers/boards/issues_controller.rb
+++ b/app/controllers/boards/issues_controller.rb
@@ -84,6 +84,7 @@ module Boards
       resource.as_json(
         only: [:id, :iid, :project_id, :title, :confidential, :due_date, :relative_position],
         labels: true,
+        sidebar_endpoints: true,
         include: {
           project: { only: [:id, :path] },
           assignees: { only: [:id, :name, :username], methods: [:avatar_url] },
diff --git a/app/helpers/markup_helper.rb b/app/helpers/markup_helper.rb
index 6636e4d2362..9d269cb65d6 100644
--- a/app/helpers/markup_helper.rb
+++ b/app/helpers/markup_helper.rb
@@ -222,7 +222,7 @@ module MarkupHelper
     data = options[:data].merge({ container: 'body' })
     content_tag :button,
       type: 'button',
-      class: 'toolbar-btn js-md has-tooltip hidden-xs',
+      class: 'toolbar-btn js-md has-tooltip',
       tabindex: -1,
       data: data,
       title: options[:title],
diff --git a/app/models/issue.rb b/app/models/issue.rb
index b5abc8f57b0..a9863a50d84 100644
--- a/app/models/issue.rb
+++ b/app/models/issue.rb
@@ -246,7 +246,12 @@ class Issue < ActiveRecord::Base
 
   def as_json(options = {})
     super(options).tap do |json|
-      json[:subscribed] = subscribed?(options[:user], project) if options.key?(:user) && options[:user]
+      if options.key?(:sidebar_endpoints) && project
+        url_helper = Gitlab::Routing.url_helpers
+
+        json.merge!(issue_sidebar_endpoint: url_helper.project_issue_path(project, self, format: :json, serializer: 'sidebar'),
+                    toggle_subscription_endpoint: url_helper.toggle_subscription_project_issue_path(project, self))
+      end
 
       if options.key?(:labels)
         json[:labels] = labels.as_json(
diff --git a/app/services/merge_requests/merge_service.rb b/app/services/merge_requests/merge_service.rb
index 1da4dbd9e96..cedfcb50e09 100644
--- a/app/services/merge_requests/merge_service.rb
+++ b/app/services/merge_requests/merge_service.rb
@@ -10,6 +10,8 @@ module MergeRequests
 
     attr_reader :merge_request, :source
 
+    delegate :merge_jid, :state, to: :@merge_request
+
     def execute(merge_request)
       if project.merge_requests_ff_only_enabled && !self.is_a?(FfMergeService)
         FfMergeService.new(project, current_user, params).execute(merge_request)
@@ -27,6 +29,7 @@ module MergeRequests
           success
         end
       end
+      log_info("Merge process finished on JID #{merge_jid} with state #{state}")
     rescue MergeError => e
       handle_merge_error(log_message: e.message, save_message_on_model: true)
     end
@@ -49,7 +52,9 @@ module MergeRequests
     def commit
       message = params[:commit_message] || merge_request.merge_commit_message
 
+      log_info("Git merge started on JID #{merge_jid}")
       commit_id = repository.merge(current_user, source, merge_request, message)
+      log_info("Git merge finished on JID #{merge_jid} commit #{commit_id}")
 
       raise MergeError, 'Conflicts detected during merge' unless commit_id
 
@@ -63,7 +68,9 @@ module MergeRequests
     end
 
     def after_merge
+      log_info("Post merge started on JID #{merge_jid} with state #{state}")
       MergeRequests::PostMergeService.new(project, current_user).execute(merge_request)
+      log_info("Post merge finished on JID #{merge_jid} with state #{state}")
 
       if delete_source_branch?
         DeleteBranchService.new(@merge_request.source_project, branch_deletion_user)
@@ -92,6 +99,11 @@ module MergeRequests
       @merge_request.update(merge_error: log_message) if save_message_on_model
     end
 
+    def log_info(message)
+      @logger ||= Rails.logger
+      @logger.info("#{merge_request_info} - #{message}")
+    end
+
     def merge_request_info
       merge_request.to_reference(full: true)
     end
diff --git a/app/views/projects/_md_preview.html.haml b/app/views/projects/_md_preview.html.haml
index f8a2ea18989..a9431cc4956 100644
--- a/app/views/projects/_md_preview.html.haml
+++ b/app/views/projects/_md_preview.html.haml
@@ -10,25 +10,23 @@
 .md-area
   .md-header
     %ul.nav-links.clearfix
-      %li.active
+      %li.md-header-tab.active
         %a.js-md-write-button{ href: "#md-write-holder", tabindex: -1 }
           Write
-      %li
+      %li.md-header-tab
         %a.js-md-preview-button{ href: "#md-preview-holder", tabindex: -1 }
           Preview
 
-      %li.pull-right
-        .toolbar-group
-          = markdown_toolbar_button({ icon: "bold", data: { "md-tag" => "**" }, title: "Add bold text" })
-          = markdown_toolbar_button({ icon: "italic", data: { "md-tag" => "*" }, title: "Add italic text" })
-          = markdown_toolbar_button({ icon: "quote", data: { "md-tag" => "> ", "md-prepend" => true }, title: "Insert a quote" })
-          = markdown_toolbar_button({ icon: "code", data: { "md-tag" => "`", "md-block" => "```" }, title: "Insert code" })
-          = markdown_toolbar_button({ icon: "list-bulleted", data: { "md-tag" => "* ", "md-prepend" => true }, title: "Add a bullet list" })
-          = markdown_toolbar_button({ icon: "list-numbered", data: { "md-tag" => "1. ", "md-prepend" => true }, title: "Add a numbered list" })
-          = markdown_toolbar_button({ icon: "task-done", data: { "md-tag" => "* [ ] ", "md-prepend" => true }, title: "Add a task list" })
-        .toolbar-group
-          %button.toolbar-btn.js-zen-enter.has-tooltip{ type: "button", tabindex: -1, aria: { label: "Go full screen" }, title: "Go full screen", data: { container: "body" } }
-            = sprite_icon("screen-full")
+      %li.md-header-toolbar
+        = markdown_toolbar_button({ icon: "bold", data: { "md-tag" => "**" }, title: "Add bold text" })
+        = markdown_toolbar_button({ icon: "italic", data: { "md-tag" => "*" }, title: "Add italic text" })
+        = markdown_toolbar_button({ icon: "quote", data: { "md-tag" => "> ", "md-prepend" => true }, title: "Insert a quote" })
+        = markdown_toolbar_button({ icon: "code", data: { "md-tag" => "`", "md-block" => "```" }, title: "Insert code" })
+        = markdown_toolbar_button({ icon: "list-bulleted", data: { "md-tag" => "* ", "md-prepend" => true }, title: "Add a bullet list" })
+        = markdown_toolbar_button({ icon: "list-numbered", data: { "md-tag" => "1. ", "md-prepend" => true }, title: "Add a numbered list" })
+        = markdown_toolbar_button({ icon: "task-done", data: { "md-tag" => "* [ ] ", "md-prepend" => true }, title: "Add a task list" })
+        %button.toolbar-btn.toolbar-fullscreen-btn.js-zen-enter.has-tooltip{ type: "button", tabindex: -1, aria: { label: "Go full screen" }, title: "Go full screen", data: { container: "body" } }
+          = sprite_icon("screen-full")
 
   .md-write-holder
     = yield
diff --git a/app/views/projects/issues/show.html.haml b/app/views/projects/issues/show.html.haml
index c64eb506412..48410ffee21 100644
--- a/app/views/projects/issues/show.html.haml
+++ b/app/views/projects/issues/show.html.haml
@@ -40,7 +40,7 @@
       .dropdown-menu.dropdown-menu-align-right.hidden-lg
         %ul
           - if can_update_issue
-            %li= link_to 'Edit', edit_project_issue_path(@project, @issue)
+            %li= link_to 'Edit', edit_project_issue_path(@project, @issue), class: 'issuable-edit'
           - unless current_user == @issue.author
             %li= link_to 'Report abuse', new_abuse_report_path(user_id: @issue.author.id, ref_url: issue_url(@issue))
           - if can_update_issue
diff --git a/app/views/projects/jobs/_sidebar.html.haml b/app/views/projects/jobs/_sidebar.html.haml
index b5067367802..17ac8a20a30 100644
--- a/app/views/projects/jobs/_sidebar.html.haml
+++ b/app/views/projects/jobs/_sidebar.html.haml
@@ -4,7 +4,7 @@
   .sidebar-container
     .blocks-container
       .block
-        %strong.prepend-top-10
+        %strong.inline.prepend-top-8
           = @build.name
         - if can?(current_user, :update_build, @build) && @build.retryable?
           = link_to "Retry", retry_namespace_project_job_path(@project.namespace, @project, @build), class: 'js-retry-button pull-right btn btn-inverted-secondary btn-retry visible-md-block visible-lg-block', method: :post
diff --git a/app/views/shared/boards/components/sidebar/_notifications.html.haml b/app/views/shared/boards/components/sidebar/_notifications.html.haml
index 9b989c23cab..333dd1a00b4 100644
--- a/app/views/shared/boards/components/sidebar/_notifications.html.haml
+++ b/app/views/shared/boards/components/sidebar/_notifications.html.haml
@@ -1,7 +1,5 @@
 - if current_user
-  .block.light.subscription{ ":data-url" => "'#{build_issue_link_base}/' + issue.iid + '/toggle_subscription'" }
-    %span.issuable-header-text.hide-collapsed.pull-left
-      Notifications
-    %button.btn.btn-default.pull-right.js-subscribe-button.issuable-subscribe-button.hide-collapsed{ type: "button" }
-      %span
-        {{issue.subscribed ? 'Unsubscribe' : 'Subscribe'}}
+  .block.subscriptions
+    %subscriptions{ ":loading" => "issue.isFetching && issue.isFetching.subscriptions",
+      ":subscribed" => "issue.subscribed",
+      ":id" => "issue.id" }
diff --git a/changelogs/unreleased/1870-impersonation-stuck-on-password-change.yml b/changelogs/unreleased/1870-impersonation-stuck-on-password-change.yml
new file mode 100644
index 00000000000..b217cb44bf7
--- /dev/null
+++ b/changelogs/unreleased/1870-impersonation-stuck-on-password-change.yml
@@ -0,0 +1,5 @@
+---
+title: Impersonation no longer gets stuck on password change.
+merge_request: 15497
+author:
+type: fixed
diff --git a/changelogs/unreleased/39167-async-boards-sidebar.yml b/changelogs/unreleased/39167-async-boards-sidebar.yml
new file mode 100644
index 00000000000..dc77f1ad451
--- /dev/null
+++ b/changelogs/unreleased/39167-async-boards-sidebar.yml
@@ -0,0 +1,5 @@
+---
+title: Update Issue Boards to fetch the notification subscription status asynchronously
+merge_request:
+author:
+type: performance
diff --git a/changelogs/unreleased/39497-inline-edit-issue-on-mobile.yml b/changelogs/unreleased/39497-inline-edit-issue-on-mobile.yml
new file mode 100644
index 00000000000..fc7c024f95a
--- /dev/null
+++ b/changelogs/unreleased/39497-inline-edit-issue-on-mobile.yml
@@ -0,0 +1,5 @@
+---
+title: Add inline editing to issues on mobile
+merge_request: 15438
+author:
+type: changed
diff --git a/changelogs/unreleased/40290-remove-rake-gitlab-sidekiq-drop-post-receive.yml b/changelogs/unreleased/40290-remove-rake-gitlab-sidekiq-drop-post-receive.yml
new file mode 100644
index 00000000000..9c308321a19
--- /dev/null
+++ b/changelogs/unreleased/40290-remove-rake-gitlab-sidekiq-drop-post-receive.yml
@@ -0,0 +1,5 @@
+---
+title: Removed unused rake task, 'rake gitlab:sidekiq:drop_post_receive'
+merge_request: 15493
+author:
+type: fixed
diff --git a/changelogs/unreleased/40292-bitbucket-import-hashed-storage.yml b/changelogs/unreleased/40292-bitbucket-import-hashed-storage.yml
new file mode 100644
index 00000000000..e5879f89156
--- /dev/null
+++ b/changelogs/unreleased/40292-bitbucket-import-hashed-storage.yml
@@ -0,0 +1,5 @@
+---
+title: Fix bitbucket wiki import with hashed storage enabled
+merge_request: 15490
+author:
+type: fixed
diff --git a/changelogs/unreleased/4080-align-retry-btn.yml b/changelogs/unreleased/4080-align-retry-btn.yml
new file mode 100644
index 00000000000..c7d3997839c
--- /dev/null
+++ b/changelogs/unreleased/4080-align-retry-btn.yml
@@ -0,0 +1,5 @@
+---
+title: Align retry button with job title with new grid size
+merge_request:
+author:
+type: fixed
diff --git a/changelogs/unreleased/bvl-dont-move-projects-using-hashed-storage.yml b/changelogs/unreleased/bvl-dont-move-projects-using-hashed-storage.yml
new file mode 100644
index 00000000000..e0895cb5d48
--- /dev/null
+++ b/changelogs/unreleased/bvl-dont-move-projects-using-hashed-storage.yml
@@ -0,0 +1,5 @@
+---
+title: Don't move repositories and attachments for projects using hashed storage
+merge_request: 15479
+author:
+type: other
diff --git a/changelogs/unreleased/fix-protected-branches-descriptions.yml b/changelogs/unreleased/fix-protected-branches-descriptions.yml
new file mode 100644
index 00000000000..8e233d9defd
--- /dev/null
+++ b/changelogs/unreleased/fix-protected-branches-descriptions.yml
@@ -0,0 +1,5 @@
+---
+title: Clarify wording of protected branch settings for the default branch
+merge_request:
+author:
+type: other
diff --git a/changelogs/unreleased/merge-requests-schema-cleanup.yml b/changelogs/unreleased/merge-requests-schema-cleanup.yml
new file mode 100644
index 00000000000..ccce9b1436c
--- /dev/null
+++ b/changelogs/unreleased/merge-requests-schema-cleanup.yml
@@ -0,0 +1,5 @@
+---
+title: Clean up schema of the "merge_requests" table
+merge_request:
+author:
+type: other
diff --git a/changelogs/unreleased/osw-merge-process-logs.yml b/changelogs/unreleased/osw-merge-process-logs.yml
new file mode 100644
index 00000000000..d2bb0e09834
--- /dev/null
+++ b/changelogs/unreleased/osw-merge-process-logs.yml
@@ -0,0 +1,5 @@
+---
+title: Add logs for monitoring the merge process
+merge_request:
+author:
+type: other
diff --git a/db/migrate/20171114150259_merge_requests_author_id_foreign_key.rb b/db/migrate/20171114150259_merge_requests_author_id_foreign_key.rb
new file mode 100644
index 00000000000..021eaa04a0c
--- /dev/null
+++ b/db/migrate/20171114150259_merge_requests_author_id_foreign_key.rb
@@ -0,0 +1,43 @@
+# See http://doc.gitlab.com/ce/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class MergeRequestsAuthorIdForeignKey < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  # Set this constant to true if this migration requires downtime.
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  class MergeRequest < ActiveRecord::Base
+    include EachBatch
+
+    self.table_name = 'merge_requests'
+
+    def self.with_orphaned_authors
+      where('NOT EXISTS (SELECT true FROM users WHERE merge_requests.author_id = users.id)')
+        .where('author_id IS NOT NULL')
+    end
+  end
+
+  def up
+    # Replacing the ghost user ID logic would be too complex, hence we don't
+    # redefine the User model here.
+    ghost_id = User.select(:id).ghost.id
+
+    MergeRequest.with_orphaned_authors.each_batch(of: 100) do |batch|
+      batch.update_all(author_id: ghost_id)
+    end
+
+    add_concurrent_foreign_key(
+      :merge_requests,
+      :users,
+      column: :author_id,
+      on_delete: :nullify
+    )
+  end
+
+  def down
+    remove_foreign_key(:merge_requests, column: :author_id)
+  end
+end
diff --git a/db/migrate/20171114160005_merge_requests_assignee_id_foreign_key.rb b/db/migrate/20171114160005_merge_requests_assignee_id_foreign_key.rb
new file mode 100644
index 00000000000..1a242f01051
--- /dev/null
+++ b/db/migrate/20171114160005_merge_requests_assignee_id_foreign_key.rb
@@ -0,0 +1,39 @@
+# See http://doc.gitlab.com/ce/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class MergeRequestsAssigneeIdForeignKey < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  # Set this constant to true if this migration requires downtime.
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  class MergeRequest < ActiveRecord::Base
+    include EachBatch
+
+    self.table_name = 'merge_requests'
+
+    def self.with_orphaned_assignees
+      where('NOT EXISTS (SELECT true FROM users WHERE merge_requests.assignee_id = users.id)')
+        .where('assignee_id IS NOT NULL')
+    end
+  end
+
+  def up
+    MergeRequest.with_orphaned_assignees.each_batch(of: 100) do |batch|
+      batch.update_all(assignee_id: nil)
+    end
+
+    add_concurrent_foreign_key(
+      :merge_requests,
+      :users,
+      column: :assignee_id,
+      on_delete: :nullify
+    )
+  end
+
+  def down
+    remove_foreign_key(:merge_requests, column: :assignee_id)
+  end
+end
diff --git a/db/migrate/20171114160904_merge_requests_updated_by_id_foreign_key.rb b/db/migrate/20171114160904_merge_requests_updated_by_id_foreign_key.rb
new file mode 100644
index 00000000000..eb3872e38da
--- /dev/null
+++ b/db/migrate/20171114160904_merge_requests_updated_by_id_foreign_key.rb
@@ -0,0 +1,46 @@
+# See http://doc.gitlab.com/ce/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class MergeRequestsUpdatedByIdForeignKey < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  # Set this constant to true if this migration requires downtime.
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  class MergeRequest < ActiveRecord::Base
+    include EachBatch
+
+    self.table_name = 'merge_requests'
+
+    def self.with_orphaned_updaters
+      where('NOT EXISTS (SELECT true FROM users WHERE merge_requests.updated_by_id = users.id)')
+        .where('updated_by_id IS NOT NULL')
+    end
+  end
+
+  def up
+    MergeRequest.with_orphaned_updaters.each_batch(of: 100) do |batch|
+      batch.update_all(updated_by_id: nil)
+    end
+
+    add_concurrent_index(
+      :merge_requests,
+      :updated_by_id,
+      where: 'updated_by_id IS NOT NULL'
+    )
+
+    add_concurrent_foreign_key(
+      :merge_requests,
+      :users,
+      column: :updated_by_id,
+      on_delete: :nullify
+    )
+  end
+
+  def down
+    remove_foreign_key_without_error(:merge_requests, column: :updated_by_id)
+    remove_concurrent_index(:merge_requests, :updated_by_id)
+  end
+end
diff --git a/db/migrate/20171114161720_merge_requests_merge_user_id_foreign_key.rb b/db/migrate/20171114161720_merge_requests_merge_user_id_foreign_key.rb
new file mode 100644
index 00000000000..925b3e537d7
--- /dev/null
+++ b/db/migrate/20171114161720_merge_requests_merge_user_id_foreign_key.rb
@@ -0,0 +1,46 @@
+# See http://doc.gitlab.com/ce/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class MergeRequestsMergeUserIdForeignKey < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  # Set this constant to true if this migration requires downtime.
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  class MergeRequest < ActiveRecord::Base
+    include EachBatch
+
+    self.table_name = 'merge_requests'
+
+    def self.with_orphaned_mergers
+      where('NOT EXISTS (SELECT true FROM users WHERE merge_requests.merge_user_id = users.id)')
+        .where('merge_user_id IS NOT NULL')
+    end
+  end
+
+  def up
+    MergeRequest.with_orphaned_mergers.each_batch(of: 100) do |batch|
+      batch.update_all(merge_user_id: nil)
+    end
+
+    add_concurrent_index(
+      :merge_requests,
+      :merge_user_id,
+      where: 'merge_user_id IS NOT NULL'
+    )
+
+    add_concurrent_foreign_key(
+      :merge_requests,
+      :users,
+      column: :merge_user_id,
+      on_delete: :nullify
+    )
+  end
+
+  def down
+    remove_foreign_key_without_error(:merge_requests, column: :merge_user_id)
+    remove_concurrent_index(:merge_requests, :merge_user_id)
+  end
+end
diff --git a/db/migrate/20171114161914_merge_requests_source_project_id_foreign_key.rb b/db/migrate/20171114161914_merge_requests_source_project_id_foreign_key.rb
new file mode 100644
index 00000000000..99740f64fe6
--- /dev/null
+++ b/db/migrate/20171114161914_merge_requests_source_project_id_foreign_key.rb
@@ -0,0 +1,45 @@
+# See http://doc.gitlab.com/ce/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class MergeRequestsSourceProjectIdForeignKey < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  # Set this constant to true if this migration requires downtime.
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  class MergeRequest < ActiveRecord::Base
+    include EachBatch
+
+    self.table_name = 'merge_requests'
+
+    def self.with_orphaned_source_projects
+      where('NOT EXISTS (SELECT true FROM projects WHERE merge_requests.source_project_id = projects.id)')
+        .where('source_project_id IS NOT NULL')
+    end
+  end
+
+  def up
+    # We need to allow NULL values so we can nullify the column when the source
+    # project is removed. We _don't_ want to remove the merge request, instead
+    # the application will keep them but close them.
+    change_column_null(:merge_requests, :source_project_id, true)
+
+    MergeRequest.with_orphaned_source_projects.each_batch(of: 100) do |batch|
+      batch.update_all(source_project_id: nil)
+    end
+
+    add_concurrent_foreign_key(
+      :merge_requests,
+      :projects,
+      column: :source_project_id,
+      on_delete: :nullify
+    )
+  end
+
+  def down
+    remove_foreign_key_without_error(:merge_requests, column: :source_project_id)
+    change_column_null(:merge_requests, :source_project_id, false)
+  end
+end
diff --git a/db/migrate/20171114162227_merge_requests_milestone_id_foreign_key.rb b/db/migrate/20171114162227_merge_requests_milestone_id_foreign_key.rb
new file mode 100644
index 00000000000..c005cf7d173
--- /dev/null
+++ b/db/migrate/20171114162227_merge_requests_milestone_id_foreign_key.rb
@@ -0,0 +1,39 @@
+# See http://doc.gitlab.com/ce/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class MergeRequestsMilestoneIdForeignKey < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  # Set this constant to true if this migration requires downtime.
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  class MergeRequest < ActiveRecord::Base
+    include EachBatch
+
+    self.table_name = 'merge_requests'
+
+    def self.with_orphaned_milestones
+      where('NOT EXISTS (SELECT true FROM milestones WHERE merge_requests.milestone_id = milestones.id)')
+        .where('milestone_id IS NOT NULL')
+    end
+  end
+
+  def up
+    MergeRequest.with_orphaned_milestones.each_batch(of: 100) do |batch|
+      batch.update_all(milestone_id: nil)
+    end
+
+    add_concurrent_foreign_key(
+      :merge_requests,
+      :milestones,
+      column: :milestone_id,
+      on_delete: :nullify
+    )
+  end
+
+  def down
+    remove_foreign_key_without_error(:merge_requests, column: :milestone_id)
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 25b4fa8b888..7afab18df08 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20171114104051) do
+ActiveRecord::Schema.define(version: 20171114162227) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -1040,7 +1040,7 @@ ActiveRecord::Schema.define(version: 20171114104051) do
   create_table "merge_requests", force: :cascade do |t|
     t.string "target_branch", null: false
     t.string "source_branch", null: false
-    t.integer "source_project_id", null: false
+    t.integer "source_project_id"
     t.integer "author_id"
     t.integer "assignee_id"
     t.string "title"
@@ -1080,6 +1080,7 @@ ActiveRecord::Schema.define(version: 20171114104051) do
   add_index "merge_requests", ["description"], name: "index_merge_requests_on_description_trigram", using: :gin, opclasses: {"description"=>"gin_trgm_ops"}
   add_index "merge_requests", ["head_pipeline_id"], name: "index_merge_requests_on_head_pipeline_id", using: :btree
   add_index "merge_requests", ["latest_merge_request_diff_id"], name: "index_merge_requests_on_latest_merge_request_diff_id", using: :btree
+  add_index "merge_requests", ["merge_user_id"], name: "index_merge_requests_on_merge_user_id", where: "(merge_user_id IS NOT NULL)", using: :btree
   add_index "merge_requests", ["milestone_id"], name: "index_merge_requests_on_milestone_id", using: :btree
   add_index "merge_requests", ["source_branch"], name: "index_merge_requests_on_source_branch", using: :btree
   add_index "merge_requests", ["source_project_id", "source_branch"], name: "index_merge_requests_on_source_project_id_and_source_branch", using: :btree
@@ -1088,6 +1089,7 @@ ActiveRecord::Schema.define(version: 20171114104051) do
   add_index "merge_requests", ["target_project_id", "merge_commit_sha", "id"], name: "index_merge_requests_on_tp_id_and_merge_commit_sha_and_id", using: :btree
   add_index "merge_requests", ["title"], name: "index_merge_requests_on_title", using: :btree
   add_index "merge_requests", ["title"], name: "index_merge_requests_on_title_trigram", using: :gin, opclasses: {"title"=>"gin_trgm_ops"}
+  add_index "merge_requests", ["updated_by_id"], name: "index_merge_requests_on_updated_by_id", where: "(updated_by_id IS NOT NULL)", using: :btree
 
   create_table "merge_requests_closing_issues", force: :cascade do |t|
     t.integer "merge_request_id", null: false
@@ -1965,7 +1967,13 @@ ActiveRecord::Schema.define(version: 20171114104051) do
   add_foreign_key "merge_request_metrics", "merge_requests", on_delete: :cascade
   add_foreign_key "merge_requests", "ci_pipelines", column: "head_pipeline_id", name: "fk_fd82eae0b9", on_delete: :nullify
   add_foreign_key "merge_requests", "merge_request_diffs", column: "latest_merge_request_diff_id", name: "fk_06067f5644", on_delete: :nullify
+  add_foreign_key "merge_requests", "milestones", name: "fk_6a5165a692", on_delete: :nullify
+  add_foreign_key "merge_requests", "projects", column: "source_project_id", name: "fk_3308fe130c", on_delete: :nullify
   add_foreign_key "merge_requests", "projects", column: "target_project_id", name: "fk_a6963e8447", on_delete: :cascade
+  add_foreign_key "merge_requests", "users", column: "assignee_id", name: "fk_6149611a04", on_delete: :nullify
+  add_foreign_key "merge_requests", "users", column: "author_id", name: "fk_e719a85f8a", on_delete: :nullify
+  add_foreign_key "merge_requests", "users", column: "merge_user_id", name: "fk_ad525e1f87", on_delete: :nullify
+  add_foreign_key "merge_requests", "users", column: "updated_by_id", name: "fk_641731faff", on_delete: :nullify
   add_foreign_key "merge_requests_closing_issues", "issues", on_delete: :cascade
   add_foreign_key "merge_requests_closing_issues", "merge_requests", on_delete: :cascade
   add_foreign_key "milestones", "namespaces", column: "group_id", name: "fk_95650a40d4", on_delete: :cascade
diff --git a/doc/api/settings.md b/doc/api/settings.md
index 4e24e4bbfc3..b27220f57f4 100644
--- a/doc/api/settings.md
+++ b/doc/api/settings.md
@@ -79,7 +79,7 @@ PUT /application/settings
 | `clientside_sentry_enabled`              | boolean          | no                                            | Enable Sentry error reporting for the client side                                                                                                                                                                                                                                                                                                                                                                                                         |
 | `container_registry_token_expire_delay`  | integer          | no                                            | Container Registry token duration in minutes                                                                                                                                                                                                                                                                                                                                                                                                              |
 | `default_artifacts_expire_in`            | string           | no                                            | Set the default expiration time for each job's artifacts                                                                                                                                                                                                                                                                                                                                                                                                  |
-| `default_branch_protection`              | integer          | no                                            | Determine if developers can push to master. Can take `0` _(not protected, both developers and masters can push new commits, force push or delete the branch)_, `1` _(partially protected, developers can push new commits, but cannot force push or delete the branch, masters can do anything)_ or `2` _(fully protected, developers cannot push new commits, force push or delete the branch, masters can do anything)_ as a parameter. Default is `2`. |
+| `default_branch_protection`              | integer          | no                                            | Determine if developers can push to master. Can take `0` _(not protected, both developers and masters can push new commits, force push, or delete the branch)_, `1` _(partially protected, developers and masters can push new commits, but cannot force push or delete the branch)_ or `2` _(fully protected, developers cannot push new commits, but masters can; no-one can force push or delete the branch)_ as a parameter. Default is `2`. |
 | `default_group_visibility`               | string           | no                                            | What visibility level new groups receive. Can take `private`, `internal` and `public` as a parameter. Default is `private`.                                                                                                                                                                                                                                                                                                                               |
 | `default_project_visibility`             | string           | no                                            | What visibility level new projects receive. Can take `private`, `internal` and `public` as a parameter. Default is `private`.                                                                                                                                                                                                                                                                                                                             |
 | `default_projects_limit`                 | integer          | no                                            | Project limit per user. Default is `100000`                                                                                                                                                                                                                                                                                                                                                                                                               |
diff --git a/doc/development/fe_guide/icons.md b/doc/development/fe_guide/icons.md
index cef62618a3c..b288ee95722 100644
--- a/doc/development/fe_guide/icons.md
+++ b/doc/development/fe_guide/icons.md
@@ -4,15 +4,17 @@ We are using SVG Icons in GitLab with a SVG Sprite, due to this the icons are on
 
 ### Usage in HAML/Rails
 
-To use a sprite Icon in HAML or Rails we use a specific helper function : 
+To use a sprite Icon in HAML or Rails we use a specific helper function :
 
 `sprite_icon(icon_name, size: nil, css_class: '')`
 
-**icon_name** Use the icon_name that you can find in the SVG Sprite (Overview is available under `/assets/sprite.symbol.html`).
+**icon_name** Use the icon_name that you can find in the SVG Sprite ([Overview is available here](http://gitlab-org.gitlab.io/gitlab-svgs/)`).
+
 **size (optional)** Use one of the following sizes : 16,24,32,48,72 (this will be translated into a `s16` class)
+
 **css_class (optional)** If you want to add additional css classes
 
-**Example** 
+**Example**
 
 `= sprite_icon('issues', size: 72, css_class: 'icon-danger')`
 
@@ -20,16 +22,34 @@ To use a sprite Icon in HAML or Rails we use a specific helper function :
 
 `<svg class="s72 icon-danger"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="/assets/icons.svg#issues"></use></svg>`
 
+### Usage in Vue
+
+We have a special Vue component for our sprite icons in `\vue_shared\components\icon.vue`.
+
+Sample usage :
+
+`<icon
+    name="retry"
+    :size="32"
+    css-classes="top"
+  />`
+
+**name** Name of the Icon in the SVG Sprite  ([Overview is available here](http://gitlab-org.gitlab.io/gitlab-svgs/)`).
+
+**size (optional)** Number value for the size which is then mapped to a specific CSS class (Available Sizes: 8,12,16,18,24,32,48,72 are mapped to `sXX` css classes)
+
+**css-classes (optional)** Additional CSS Classes to add to the svg tag.
+
 ### Usage in HTML/JS
 
-Please use the following function inside JS to render an icon : 
+Please use the following function inside JS to render an icon :
 `gl.utils.spriteIcon(iconName)`
 
 ## Adding a new icon to the sprite
 
 All Icons and Illustrations are managed in the [gitlab-svgs](https://gitlab.com/gitlab-org/gitlab-svgs) repository which is added as a dev-dependency.
 
-To upgrade to a new SVG Sprite version run `yarn upgrade @gitlab-org/gitlab-svgs` and then run `yarn run svg`. This task will copy the svg sprite and all illustrations in the correct folders.
+To upgrade to a new SVG Sprite version run `yarn upgrade @gitlab-org/gitlab-svgs` and then run `yarn run svg`. This task will copy the svg sprite and all illustrations in the correct folders. The updated files should be tracked in Git as those are referenced.
 
 # SVG Illustrations
 
diff --git a/doc/install/requirements.md b/doc/install/requirements.md
index 7bf126eec5d..baecf9455b0 100644
--- a/doc/install/requirements.md
+++ b/doc/install/requirements.md
@@ -80,13 +80,13 @@ errors during usage.
 - 256GB RAM supports up to 32,000 users
 - More users? Run it on [multiple application servers](https://about.gitlab.com/high-availability/)
 
-We recommend having at least 2GB of swap on your server, even if you currently have
+We recommend having at least [2GB of swap on your server](https://askubuntu.com/a/505344/310789), even if you currently have
 enough available RAM. Having swap will help reduce the chance of errors occurring
 if your available memory changes. We also recommend [configuring the kernel's swappiness setting](https://askubuntu.com/a/103916)
 to a low value like `10` to make the most of your RAM while still having the swap
 available when needed.
 
-Notice: The 25 workers of Sidekiq will show up as separate processes in your process overview (such as top or htop) but they share the same RAM allocation since Sidekiq is a multithreaded application. Please see the section below about Unicorn workers for information about how many you need of those.
+Notice: The 25 workers of Sidekiq will show up as separate processes in your process overview (such as `top` or `htop`) but they share the same RAM allocation since Sidekiq is a multithreaded application. Please see the section below about Unicorn workers for information about how many you need of those.
 
 ## Database
 
@@ -146,7 +146,7 @@ So for a machine with 2 cores, 3 unicorn workers is ideal.
 For all machines that have 2GB and up we recommend a minimum of three unicorn workers.
 If you have a 1GB machine we recommend to configure only two Unicorn workers to prevent excessive swapping.
 
-To change the Unicorn workers when you have the Omnibus package please see [the Unicorn settings in the Omnibus GitLab documentation](https://gitlab.com/gitlab-org/omnibus-gitlab/blob/master/doc/settings/unicorn.md#unicorn-settings).
+To change the Unicorn workers when you have the Omnibus package (which defaults to the recommendation above) please see [the Unicorn settings in the Omnibus GitLab documentation](https://gitlab.com/gitlab-org/omnibus-gitlab/blob/master/doc/settings/unicorn.md#unicorn-settings).
 
 ## Redis and Sidekiq
 
diff --git a/lib/gitlab/access.rb b/lib/gitlab/access.rb
index b4012ebbb99..7127948cf00 100644
--- a/lib/gitlab/access.rb
+++ b/lib/gitlab/access.rb
@@ -58,9 +58,9 @@ module Gitlab
       def protection_options
         {
           "Not protected: Both developers and masters can push new commits, force push, or delete the branch." => PROTECTION_NONE,
-          "Protected against pushes: Developers cannot push new commits, but are allowed to accept merge requests to the branch." => PROTECTION_DEV_CAN_MERGE,
-          "Partially protected: Developers can push new commits, but cannot force push or delete the branch. Masters can do all of those." => PROTECTION_DEV_CAN_PUSH,
-          "Fully protected: Developers cannot push new commits, force push, or delete the branch. Only masters can do any of those." => PROTECTION_FULL
+          "Protected against pushes: Developers cannot push new commits, but are allowed to accept merge requests to the branch. Masters can push to the branch." => PROTECTION_DEV_CAN_MERGE,
+          "Partially protected: Both developers and masters can push new commits, but cannot force push or delete the branch." => PROTECTION_DEV_CAN_PUSH,
+          "Fully protected: Developers cannot push new commits, but masters can. No-one can force push or delete the branch." => PROTECTION_FULL
         }
       end
 
diff --git a/lib/gitlab/bitbucket_import/importer.rb b/lib/gitlab/bitbucket_import/importer.rb
index 033ecd15749..d48ae17aeaf 100644
--- a/lib/gitlab/bitbucket_import/importer.rb
+++ b/lib/gitlab/bitbucket_import/importer.rb
@@ -61,9 +61,9 @@ module Gitlab
       def import_wiki
         return if project.wiki.repository_exists?
 
-        path_with_namespace = "#{project.full_path}.wiki"
+        disk_path = project.wiki.disk_path
         import_url = project.import_url.sub(/\.git\z/, ".git/wiki")
-        gitlab_shell.import_repository(project.repository_storage_path, path_with_namespace, import_url)
+        gitlab_shell.import_repository(project.repository_storage_path, disk_path, import_url)
       rescue StandardError => e
         errors << { type: :wiki, errors: e.message }
       end
diff --git a/lib/gitlab/database/rename_reserved_paths_migration/v1/migration_classes.rb b/lib/gitlab/database/rename_reserved_paths_migration/v1/migration_classes.rb
index 5481024db8e..7e492938eac 100644
--- a/lib/gitlab/database/rename_reserved_paths_migration/v1/migration_classes.rb
+++ b/lib/gitlab/database/rename_reserved_paths_migration/v1/migration_classes.rb
@@ -68,6 +68,11 @@ module Gitlab
             has_one :route, as: :source
             self.table_name = 'projects'
 
+            HASHED_STORAGE_FEATURES = {
+              repository: 1,
+              attachments: 2
+            }.freeze
+
             def repository_storage_path
               Gitlab.config.repositories.storages[repository_storage]['path']
             end
@@ -76,6 +81,13 @@ module Gitlab
             def self.name
               'Project'
             end
+
+            def hashed_storage?(feature)
+              raise ArgumentError, "Invalid feature" unless HASHED_STORAGE_FEATURES.include?(feature)
+              return false unless respond_to?(:storage_version)
+
+              self.storage_version && self.storage_version >= HASHED_STORAGE_FEATURES[feature]
+            end
           end
         end
       end
diff --git a/lib/gitlab/database/rename_reserved_paths_migration/v1/rename_projects.rb b/lib/gitlab/database/rename_reserved_paths_migration/v1/rename_projects.rb
index 75a75f61953..d32616862f0 100644
--- a/lib/gitlab/database/rename_reserved_paths_migration/v1/rename_projects.rb
+++ b/lib/gitlab/database/rename_reserved_paths_migration/v1/rename_projects.rb
@@ -22,9 +22,11 @@ module Gitlab
           end
 
           def move_project_folders(project, old_full_path, new_full_path)
-            move_repository(project, old_full_path, new_full_path)
-            move_repository(project, "#{old_full_path}.wiki", "#{new_full_path}.wiki")
-            move_uploads(old_full_path, new_full_path)
+            unless project.hashed_storage?(:repository)
+              move_repository(project, old_full_path, new_full_path)
+              move_repository(project, "#{old_full_path}.wiki", "#{new_full_path}.wiki")
+            end
+            move_uploads(old_full_path, new_full_path) unless project.hashed_storage?(:attachments)
             move_pages(old_full_path, new_full_path)
           end
 
diff --git a/lib/gitlab/git/repository.rb b/lib/gitlab/git/repository.rb
index ab3892dd50d..0c522deb6fa 100644
--- a/lib/gitlab/git/repository.rb
+++ b/lib/gitlab/git/repository.rb
@@ -304,7 +304,13 @@ module Gitlab
       end
 
       def delete_all_refs_except(prefixes)
-        delete_refs(*all_ref_names_except(prefixes))
+        gitaly_migrate(:ref_delete_refs) do |is_enabled|
+          if is_enabled
+            gitaly_ref_client.delete_refs(except_with_prefixes: prefixes)
+          else
+            delete_refs(*all_ref_names_except(prefixes))
+          end
+        end
       end
 
       # Returns an Array of all ref names, except when it's matching pattern
diff --git a/lib/gitlab/gitaly_client/ref_service.rb b/lib/gitlab/gitaly_client/ref_service.rb
index e8a2215959d..31b04bc2650 100644
--- a/lib/gitlab/gitaly_client/ref_service.rb
+++ b/lib/gitlab/gitaly_client/ref_service.rb
@@ -126,6 +126,15 @@ module Gitlab
         GitalyClient.call(@repository.storage, :ref_service, :delete_branch, request)
       end
 
+      def delete_refs(except_with_prefixes:)
+        request = Gitaly::DeleteRefsRequest.new(
+          repository: @gitaly_repo,
+          except_with_prefix: except_with_prefixes
+        )
+
+        GitalyClient.call(@repository.storage, :ref_service, :delete_refs, request)
+      end
+
       private
 
       def consume_refs_response(response)
diff --git a/lib/gitlab/import_export/merge_request_parser.rb b/lib/gitlab/import_export/merge_request_parser.rb
index 61db4bd9ccc..f3d7407383c 100644
--- a/lib/gitlab/import_export/merge_request_parser.rb
+++ b/lib/gitlab/import_export/merge_request_parser.rb
@@ -1,7 +1,7 @@
 module Gitlab
   module ImportExport
     class MergeRequestParser
-      FORKED_PROJECT_ID = -1
+      FORKED_PROJECT_ID = nil
 
       def initialize(project, diff_head_sha, merge_request, relation_hash)
         @project = project
diff --git a/lib/tasks/gitlab/sidekiq.rake b/lib/tasks/gitlab/sidekiq.rake
deleted file mode 100644
index 6cbc83b8973..00000000000
--- a/lib/tasks/gitlab/sidekiq.rake
+++ /dev/null
@@ -1,47 +0,0 @@
-namespace :gitlab do
-  namespace :sidekiq do
-    QUEUE = 'queue:post_receive'.freeze
-
-    desc 'Drop all Sidekiq PostReceive jobs for a given project'
-    task :drop_post_receive, [:project] => :environment do |t, args|
-      unless args.project.present?
-        abort "Please specify the project you want to drop PostReceive jobs for:\n  rake gitlab:sidekiq:drop_post_receive[group/project]"
-      end
-      project_path = Project.find_by_full_path(args.project).repository.path_to_repo
-
-      Sidekiq.redis do |redis|
-        unless redis.exists(QUEUE)
-          abort "Queue #{QUEUE} is empty"
-        end
-
-        temp_queue = "#{QUEUE}_#{Time.now.to_i}"
-        redis.rename(QUEUE, temp_queue)
-
-        # At this point, then post_receive queue is empty. It may be receiving
-        # new jobs already. We will repopulate it with the old jobs, skipping the
-        # ones we want to drop.
-        dropped = 0
-        while (job = redis.lpop(temp_queue))
-          if repo_path(job) == project_path
-            dropped += 1
-          else
-            redis.rpush(QUEUE, job)
-          end
-        end
-        # The temp_queue will delete itself after we have popped all elements
-        # from it
-
-        puts "Dropped #{dropped} jobs containing #{project_path} from #{QUEUE}"
-      end
-    end
-
-    def repo_path(job)
-      job_args = JSON.parse(job)['args']
-      if job_args
-        job_args.first
-      else
-        nil
-      end
-    end
-  end
-end
diff --git a/qa/Dockerfile b/qa/Dockerfile
index f3a81a7e355..9b6ffff7c4d 100644
--- a/qa/Dockerfile
+++ b/qa/Dockerfile
@@ -9,6 +9,13 @@ RUN sed -i "s/httpredir.debian.org/ftp.us.debian.org/" /etc/apt/sources.list
 RUN apt-get update && apt-get install -y wget git unzip xvfb
 
 ##
+# Install Docker
+#
+RUN wget -q https://download.docker.com/linux/static/stable/x86_64/docker-17.09.0-ce.tgz && \
+    tar -zxf docker-17.09.0-ce.tgz && mv docker/docker /usr/local/bin/docker && \
+    rm docker-17.09.0-ce.tgz
+
+##
 # Install Google Chrome version with headless support
 #
 RUN curl -sS -L https://dl.google.com/linux/linux_signing_key.pub | apt-key add -
diff --git a/qa/qa/specs/features/mattermost/login_spec.rb b/qa/qa/specs/features/mattermost/login_spec.rb
index 92f91cb2725..1fde3f89a99 100644
--- a/qa/qa/specs/features/mattermost/login_spec.rb
+++ b/qa/qa/specs/features/mattermost/login_spec.rb
@@ -9,5 +9,16 @@ module QA
         expect(page).to have_content(/(Welcome to: Mattermost|Logout GitLab Mattermost)/)
       end
     end
+
+    ##
+    # TODO, temporary workaround for gitlab-org/gitlab-qa#102.
+    #
+    after do
+      visit Runtime::Scenario.mattermost_address
+      reset_session!
+
+      visit Runtime::Scenario.gitlab_address
+      reset_session!
+    end
   end
 end
diff --git a/spec/controllers/application_controller_spec.rb b/spec/controllers/application_controller_spec.rb
index b73ca0c2346..768c7e99c96 100644
--- a/spec/controllers/application_controller_spec.rb
+++ b/spec/controllers/application_controller_spec.rb
@@ -6,6 +6,10 @@ describe ApplicationController do
   describe '#check_password_expiration' do
     let(:controller) { described_class.new }
 
+    before do
+      allow(controller).to receive(:session).and_return({})
+    end
+
     it 'redirects if the user is over their password expiry' do
       user.password_expires_at = Time.new(2002)
 
diff --git a/spec/features/admin/admin_users_spec.rb b/spec/features/admin/admin_users_spec.rb
index b47f9055d29..a69b428d117 100644
--- a/spec/features/admin/admin_users_spec.rb
+++ b/spec/features/admin/admin_users_spec.rb
@@ -167,19 +167,36 @@ describe "Admin::Users" do
         it 'sees impersonation log out icon' do
           icon = first('.fa.fa-user-secret')
 
-          expect(icon).not_to eql nil
+          expect(icon).not_to be nil
         end
 
         it 'logs out of impersonated user back to original user' do
           find(:css, 'li.impersonation a').click
 
-          expect(page.find(:css, '.header-user .profile-link')['data-user']).to eql(current_user.username)
+          expect(page.find(:css, '.header-user .profile-link')['data-user']).to eq(current_user.username)
         end
 
         it 'is redirected back to the impersonated users page in the admin after stopping' do
           find(:css, 'li.impersonation a').click
 
-          expect(current_path).to eql "/admin/users/#{another_user.username}"
+          expect(current_path).to eq("/admin/users/#{another_user.username}")
+        end
+      end
+
+      context 'when impersonating a user with an expired password' do
+        before do
+          another_user.update(password_expires_at: Time.now - 5.minutes)
+          click_link 'Impersonate'
+        end
+
+        it 'does not redirect to password change page' do
+          expect(current_path).to eq('/')
+        end
+
+        it 'is redirected back to the impersonated users page in the admin after stopping' do
+          find(:css, 'li.impersonation a').click
+
+          expect(current_path).to eq("/admin/users/#{another_user.username}")
         end
       end
     end
diff --git a/spec/features/boards/sidebar_spec.rb b/spec/features/boards/sidebar_spec.rb
index 9137ab82ff4..205900615c4 100644
--- a/spec/features/boards/sidebar_spec.rb
+++ b/spec/features/boards/sidebar_spec.rb
@@ -331,11 +331,29 @@ describe 'Issue Boards', :js do
   context 'subscription' do
     it 'changes issue subscription' do
       click_card(card)
+      wait_for_requests
 
-      page.within('.subscription') do
+      page.within('.subscriptions') do
         click_button 'Subscribe'
         wait_for_requests
-        expect(page).to have_content("Unsubscribe")
+
+        expect(page).to have_content('Unsubscribe')
+      end
+    end
+
+    it 'has "Unsubscribe" button when already subscribed' do
+      create(:subscription, user: user, project: project, subscribable: issue2, subscribed: true)
+      visit project_board_path(project, board)
+      wait_for_requests
+
+      click_card(card)
+      wait_for_requests
+
+      page.within('.subscriptions') do
+        click_button 'Unsubscribe'
+        wait_for_requests
+
+        expect(page).to have_content('Subscribe')
       end
     end
   end
diff --git a/spec/fixtures/api/schemas/issue.json b/spec/fixtures/api/schemas/issue.json
index a55ecaa5697..b579e32c9aa 100644
--- a/spec/fixtures/api/schemas/issue.json
+++ b/spec/fixtures/api/schemas/issue.json
@@ -13,6 +13,8 @@
     "confidential": { "type": "boolean" },
     "due_date": { "type": ["date", "null"] },
     "relative_position": { "type": "integer" },
+    "issue_sidebar_endpoint": { "type": "string" },
+    "toggle_subscription_endpoint": { "type": "string" },
     "project": {
       "id": { "type": "integer" },
       "path": { "type": "string" }
diff --git a/spec/javascripts/boards/board_card_spec.js b/spec/javascripts/boards/board_card_spec.js
index 83b13b06dc1..8f607899b20 100644
--- a/spec/javascripts/boards/board_card_spec.js
+++ b/spec/javascripts/boards/board_card_spec.js
@@ -9,10 +9,11 @@
 import Vue from 'vue';
 import '~/boards/models/assignee';
 
+import eventHub from '~/boards/eventhub';
 import '~/boards/models/list';
 import '~/boards/models/label';
 import '~/boards/stores/boards_store';
-import boardCard from '~/boards/components/board_card';
+import boardCard from '~/boards/components/board_card.vue';
 import './mock_data';
 
 describe('Board card', () => {
@@ -157,33 +158,35 @@ describe('Board card', () => {
     });
 
     it('sets detail issue to card issue on mouse up', () => {
+      spyOn(eventHub, '$emit');
+
       triggerEvent('mousedown');
       triggerEvent('mouseup');
 
-      expect(gl.issueBoards.BoardsStore.detail.issue).toEqual(vm.issue);
+      expect(eventHub.$emit).toHaveBeenCalledWith('newDetailIssue', vm.issue);
       expect(gl.issueBoards.BoardsStore.detail.list).toEqual(vm.list);
     });
 
     it('adds active class if detail issue is set', (done) => {
-      triggerEvent('mousedown');
-      triggerEvent('mouseup');
-
-      setTimeout(() => {
-        expect(vm.$el.classList.contains('is-active')).toBe(true);
-        done();
-      }, 0);
+      vm.detailIssue.issue = vm.issue;
+
+      Vue.nextTick()
+        .then(() => {
+          expect(vm.$el.classList.contains('is-active')).toBe(true);
+        })
+        .then(done)
+        .catch(done.fail);
     });
 
     it('resets detail issue to empty if already set', () => {
-      triggerEvent('mousedown');
-      triggerEvent('mouseup');
+      spyOn(eventHub, '$emit');
 
-      expect(gl.issueBoards.BoardsStore.detail.issue).toEqual(vm.issue);
+      gl.issueBoards.BoardsStore.detail.issue = vm.issue;
 
       triggerEvent('mousedown');
       triggerEvent('mouseup');
 
-      expect(gl.issueBoards.BoardsStore.detail.issue).toEqual({});
+      expect(eventHub.$emit).toHaveBeenCalledWith('clearDetailIssue');
     });
   });
 });
diff --git a/spec/javascripts/boards/issue_spec.js b/spec/javascripts/boards/issue_spec.js
index 022d286d5df..ccde657789a 100644
--- a/spec/javascripts/boards/issue_spec.js
+++ b/spec/javascripts/boards/issue_spec.js
@@ -133,6 +133,19 @@ describe('Issue model', () => {
     expect(relativePositionIssue.position).toBe(1);
   });
 
+  it('updates data', () => {
+    issue.updateData({ subscribed: true });
+    expect(issue.subscribed).toBe(true);
+  });
+
+  it('sets fetching state', () => {
+    expect(issue.isFetching.subscriptions).toBe(true);
+
+    issue.setFetchingState('subscriptions', false);
+
+    expect(issue.isFetching.subscriptions).toBe(false);
+  });
+
   describe('update', () => {
     it('passes assignee ids when there are assignees', (done) => {
       spyOn(Vue.http, 'patch').and.callFake((url, data) => {
diff --git a/spec/javascripts/vue_shared/components/loading_button_spec.js b/spec/javascripts/vue_shared/components/loading_button_spec.js
index c1eabdede00..49bf8ee6f7c 100644
--- a/spec/javascripts/vue_shared/components/loading_button_spec.js
+++ b/spec/javascripts/vue_shared/components/loading_button_spec.js
@@ -98,7 +98,6 @@ describe('LoadingButton', function () {
     it('does not call given callback when disabled because of loading', () => {
       vm = mountComponent(LoadingButton, {
         loading: true,
-        indeterminate: true,
       });
       spyOn(vm, '$emit');
 
diff --git a/spec/lib/gitlab/bitbucket_import/importer_spec.rb b/spec/lib/gitlab/bitbucket_import/importer_spec.rb
index a66347ead76..a6a1d9e619f 100644
--- a/spec/lib/gitlab/bitbucket_import/importer_spec.rb
+++ b/spec/lib/gitlab/bitbucket_import/importer_spec.rb
@@ -54,11 +54,13 @@ describe Gitlab::BitbucketImport::Importer do
     create(
       :project,
       import_source: project_identifier,
+      import_url: "https://bitbucket.org/#{project_identifier}.git",
       import_data_attributes: { credentials: data }
     )
   end
 
   let(:importer) { described_class.new(project) }
+  let(:gitlab_shell) { double }
 
   let(:issues_statuses_sample_data) do
     {
@@ -67,6 +69,10 @@ describe Gitlab::BitbucketImport::Importer do
     }
   end
 
+  before do
+    allow(importer).to receive(:gitlab_shell) { gitlab_shell }
+  end
+
   context 'issues statuses' do
     before do
       # HACK: Bitbucket::Representation.const_get('Issue') seems to return ::Issue without this
@@ -110,15 +116,36 @@ describe Gitlab::BitbucketImport::Importer do
     end
 
     it 'maps statuses to open or closed' do
+      allow(importer).to receive(:import_wiki)
+
       importer.execute
 
       expect(project.issues.where(state: "closed").size).to eq(5)
       expect(project.issues.where(state: "opened").size).to eq(2)
     end
 
-    it 'calls import_wiki' do
-      expect(importer).to receive(:import_wiki)
-      importer.execute
+    describe 'wiki import' do
+      it 'is skipped when the wiki exists' do
+        expect(project.wiki).to receive(:repository_exists?) { true }
+        expect(importer.gitlab_shell).not_to receive(:import_repository)
+
+        importer.execute
+
+        expect(importer.errors).to be_empty
+      end
+
+      it 'imports to the project disk_path' do
+        expect(project.wiki).to receive(:repository_exists?) { false }
+        expect(importer.gitlab_shell).to receive(:import_repository).with(
+          project.repository_storage_path,
+          project.wiki.disk_path,
+          project.import_url + '/wiki'
+        )
+
+        importer.execute
+
+        expect(importer.errors).to be_empty
+      end
     end
   end
 end
diff --git a/spec/lib/gitlab/database/rename_reserved_paths_migration/v1/rename_projects_spec.rb b/spec/lib/gitlab/database/rename_reserved_paths_migration/v1/rename_projects_spec.rb
index 8922370b0a0..e850b5cd6a4 100644
--- a/spec/lib/gitlab/database/rename_reserved_paths_migration/v1/rename_projects_spec.rb
+++ b/spec/lib/gitlab/database/rename_reserved_paths_migration/v1/rename_projects_spec.rb
@@ -87,6 +87,14 @@ describe Gitlab::Database::RenameReservedPathsMigration::V1::RenameProjects, :tr
       subject.move_project_folders(project, 'known-parent/the-path', 'known-parent/the-path0')
     end
 
+    it 'does not move the repositories when hashed storage is enabled' do
+      project.update!(storage_version: Project::HASHED_STORAGE_FEATURES[:repository])
+
+      expect(subject).not_to receive(:move_repository)
+
+      subject.move_project_folders(project, 'known-parent/the-path', 'known-parent/the-path0')
+    end
+
     it 'moves uploads' do
       expect(subject).to receive(:move_uploads)
                            .with('known-parent/the-path', 'known-parent/the-path0')
@@ -94,6 +102,14 @@ describe Gitlab::Database::RenameReservedPathsMigration::V1::RenameProjects, :tr
       subject.move_project_folders(project, 'known-parent/the-path', 'known-parent/the-path0')
     end
 
+    it 'does not move uploads when hashed storage is enabled for attachments' do
+      project.update!(storage_version: Project::HASHED_STORAGE_FEATURES[:attachments])
+
+      expect(subject).not_to receive(:move_uploads)
+
+      subject.move_project_folders(project, 'known-parent/the-path', 'known-parent/the-path0')
+    end
+
     it 'moves pages' do
       expect(subject).to receive(:move_pages)
                            .with('known-parent/the-path', 'known-parent/the-path0')
diff --git a/spec/lib/gitlab/git/repository_spec.rb b/spec/lib/gitlab/git/repository_spec.rb
index e226635971d..f0da77c61bb 100644
--- a/spec/lib/gitlab/git/repository_spec.rb
+++ b/spec/lib/gitlab/git/repository_spec.rb
@@ -1783,6 +1783,32 @@ describe Gitlab::Git::Repository, seed_helper: true do
     end
   end
 
+  describe '#delete_all_refs_except' do
+    let(:repository) do
+      Gitlab::Git::Repository.new('default', TEST_MUTABLE_REPO_PATH, '')
+    end
+
+    before do
+      repository.write_ref("refs/delete/a", "0b4bc9a49b562e85de7cc9e834518ea6828729b9")
+      repository.write_ref("refs/also-delete/b", "12d65c8dd2b2676fa3ac47d955accc085a37a9c1")
+      repository.write_ref("refs/keep/c", "6473c90867124755509e100d0d35ebdc85a0b6ae")
+      repository.write_ref("refs/also-keep/d", "0b4bc9a49b562e85de7cc9e834518ea6828729b9")
+    end
+
+    after do
+      ensure_seeds
+    end
+
+    it 'deletes all refs except those with the specified prefixes' do
+      repository.delete_all_refs_except(%w(refs/keep refs/also-keep refs/heads))
+      expect(repository.ref_exists?("refs/delete/a")).to be(false)
+      expect(repository.ref_exists?("refs/also-delete/b")).to be(false)
+      expect(repository.ref_exists?("refs/keep/c")).to be(true)
+      expect(repository.ref_exists?("refs/also-keep/d")).to be(true)
+      expect(repository.ref_exists?("refs/heads/master")).to be(true)
+    end
+  end
+
   def create_remote_branch(repository, remote_name, branch_name, source_branch_name)
     source_branch = repository.branches.find { |branch| branch.name == source_branch_name }
     rugged = repository.rugged
diff --git a/spec/lib/gitlab/gitaly_client/ref_service_spec.rb b/spec/lib/gitlab/gitaly_client/ref_service_spec.rb
index 8127b4842b7..951e146a30a 100644
--- a/spec/lib/gitlab/gitaly_client/ref_service_spec.rb
+++ b/spec/lib/gitlab/gitaly_client/ref_service_spec.rb
@@ -104,4 +104,17 @@ describe Gitlab::GitalyClient::RefService do
       expect { client.ref_exists?('reXXXXX') }.to raise_error(ArgumentError)
     end
   end
+
+  describe '#delete_refs' do
+    let(:prefixes) { %w(refs/heads refs/keep-around) }
+
+    it 'sends a delete_refs message' do
+      expect_any_instance_of(Gitaly::RefService::Stub)
+        .to receive(:delete_refs)
+        .with(gitaly_request_with_params(except_with_prefix: prefixes), kind_of(Hash))
+        .and_return(double('delete_refs_response'))
+
+      client.delete_refs(except_with_prefixes: prefixes)
+    end
+  end
 end
diff --git a/spec/lib/gitlab/import_export/project_tree_restorer_spec.rb b/spec/lib/gitlab/import_export/project_tree_restorer_spec.rb
index e4b4cf5ba85..c2bda6f8821 100644
--- a/spec/lib/gitlab/import_export/project_tree_restorer_spec.rb
+++ b/spec/lib/gitlab/import_export/project_tree_restorer_spec.rb
@@ -155,7 +155,7 @@ describe Gitlab::ImportExport::ProjectTreeRestorer do
         end
 
         it 'has no source if source/target differ' do
-          expect(MergeRequest.find_by_title('MR2').source_project_id).to eq(-1)
+          expect(MergeRequest.find_by_title('MR2').source_project_id).to be_nil
         end
       end
 
diff --git a/spec/services/milestones/destroy_service_spec.rb b/spec/services/milestones/destroy_service_spec.rb
index 16e288b3148..af35e17bfa7 100644
--- a/spec/services/milestones/destroy_service_spec.rb
+++ b/spec/services/milestones/destroy_service_spec.rb
@@ -5,7 +5,7 @@ describe Milestones::DestroyService do
   let(:project) { create(:project) }
   let(:milestone) { create(:milestone, title: 'Milestone v1.0', project: project) }
   let!(:issue) { create(:issue, project: project, milestone: milestone) }
-  let(:merge_request) { create(:merge_request, source_project: project, milestone: milestone) }
+  let!(:merge_request) { create(:merge_request, source_project: project, milestone: milestone) }
 
   before do
     project.team << [user, :master]