Merge branch 'master' into sh-headless-chrome-support

* master: (297 commits)
  Fix deletion of container registry or images returning an error
  The fog-aliyun gem had a bug in v0.1.0 for file storage creation/update. This merge requests update the gem to v0.2.0 which contains the fix:
  Decrease ABC threshold to 54.28
  Update VERSION to 10.2.0-pre
  Update CHANGELOG.md for 10.1.0
  Document `CI_SHARED_ENVIRONMENT` and `CI_DISPOSABLE_ENVIRONMENT`
  Fix the external URLs generated for online view of HTML artifacts
  Use title as placeholder instead of issue title for reusability
  Fix failure in current_settings_spec.rb
  Clarify the difference between project_update and project_rename
  URI decode Page-Title header to preserve UTF-8 characters
  Update Gitaly version to v0.49.0
  Decrease Perceived Complexity threshold to 14
  Resolve "Remove help text regarding group issues on group issues page (and group merge requests page)"
  Force non diff resolved discussion to display when collapse toggled
  Added submodule support in multi-file editor
  add note about after_script being run separately
  Check for element before evaluate_script
  Merge branch 'master-i18n' into 'master'
  Update Prometheus gem to fix problems with other files overwriting current file
  ...

182 files changed, 3438 insertions, 2348 deletions

diff --git a/app/assets/images/auth_buttons/signin_with_google.png b/app/assets/images/auth_buttons/signin_with_google.png
index b1327b4f7b4..f27bb243304 100644
--- a/app/assets/images/auth_buttons/signin_with_google.png
+++ b/app/assets/images/auth_buttons/signin_with_google.png
diff --git a/app/assets/javascripts/api.js b/app/assets/javascripts/api.js
index 38d1effc77c..242b3e2b990 100644
--- a/app/assets/javascripts/api.js
+++ b/app/assets/javascripts/api.js
@@ -15,6 +15,7 @@ const Api = {
   issuableTemplatePath: '/:namespace_path/:project_path/templates/:type/:key',
   usersPath: '/api/:version/users.json',
   commitPath: '/api/:version/projects/:id/repository/commits',
+  branchSinglePath: '/api/:version/projects/:id/repository/branches/:branch',
 
   group(groupId, callback) {
     const url = Api.buildUrl(Api.groupPath)
@@ -123,6 +124,19 @@ const Api = {
     });
   },
 
+  branchSingle(id, branch) {
+    const url = Api.buildUrl(Api.branchSinglePath)
+      .replace(':id', id)
+      .replace(':branch', branch);
+
+    return this.wrapAjaxCall({
+      url,
+      type: 'GET',
+      contentType: 'application/json; charset=utf-8',
+      dataType: 'json',
+    });
+  },
+
   // Return text for a specific license
   licenseText(key, data, callback) {
     const url = Api.buildUrl(Api.licensePath)
diff --git a/app/assets/javascripts/blob/blob_file_dropzone.js b/app/assets/javascripts/blob/blob_file_dropzone.js
index ddd1fea3aca..0d590a9dbc4 100644
--- a/app/assets/javascripts/blob/blob_file_dropzone.js
+++ b/app/assets/javascripts/blob/blob_file_dropzone.js
@@ -1,6 +1,5 @@
 /* eslint-disable func-names, object-shorthand, prefer-arrow-callback */
-/* global Dropzone */
-
+import Dropzone from 'dropzone';
 import '../lib/utils/url_utility';
 import { HIDDEN_CLASS } from '../lib/utils/constants';
 import csrf from '../lib/utils/csrf';
diff --git a/app/assets/javascripts/boards/components/board_sidebar.js b/app/assets/javascripts/boards/components/board_sidebar.js
index 7f3afefc9cc..c1f902a785a 100644
--- a/app/assets/javascripts/boards/components/board_sidebar.js
+++ b/app/assets/javascripts/boards/components/board_sidebar.js
@@ -9,6 +9,7 @@ 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 DueDateSelectors from '../../due_date_select';
 import './sidebar/remove_issue';
 
 const Store = gl.issueBoards.BoardsStore;
@@ -113,7 +114,7 @@ gl.issueBoards.BoardSidebar = Vue.extend({
   mounted () {
     new IssuableContext(this.currentUser);
     new MilestoneSelect();
-    new gl.DueDateSelectors();
+    new DueDateSelectors();
     new LabelsSelect();
     new Sidebar();
     gl.Subscription.bindAll('.subscription');
diff --git a/app/assets/javascripts/boards/services/board_service.js b/app/assets/javascripts/boards/services/board_service.js
index 38eea38f949..97e80afa3f8 100644
--- a/app/assets/javascripts/boards/services/board_service.js
+++ b/app/assets/javascripts/boards/services/board_service.js
@@ -7,7 +7,7 @@ class BoardService {
     this.boards = Vue.resource(`${boardsEndpoint}{/id}.json`, {}, {
       issues: {
         method: 'GET',
-        url: `${gon.relative_url_root}/boards/${boardId}/issues.json`,
+        url: `${gon.relative_url_root}/-/boards/${boardId}/issues.json`,
       }
     });
     this.lists = Vue.resource(`${listsEndpoint}{/id}`, {}, {
@@ -16,7 +16,7 @@ class BoardService {
         url: `${listsEndpoint}/generate.json`
       }
     });
-    this.issue = Vue.resource(`${gon.relative_url_root}/boards/${boardId}/issues{/id}`, {});
+    this.issue = Vue.resource(`${gon.relative_url_root}/-/boards/${boardId}/issues{/id}`, {});
     this.issues = Vue.resource(`${listsEndpoint}{/id}/issues`, {}, {
       bulkUpdate: {
         method: 'POST',
diff --git a/app/assets/javascripts/broadcast_message.js b/app/assets/javascripts/broadcast_message.js
index f73e489e7b2..ff88083a4b4 100644
--- a/app/assets/javascripts/broadcast_message.js
+++ b/app/assets/javascripts/broadcast_message.js
@@ -1,33 +1,28 @@
-/* eslint-disable func-names, space-before-function-paren, prefer-arrow-callback, no-var, quotes, no-else-return, object-shorthand, comma-dangle, max-len */
-
-$(function() {
-  var previewPath;
-  $('input#broadcast_message_color').on('input', function() {
-    var previewColor;
-    previewColor = $(this).val();
-    return $('div.broadcast-message-preview').css('background-color', previewColor);
+export default function initBroadcastMessagesForm() {
+  $('input#broadcast_message_color').on('input', function onMessageColorInput() {
+    const previewColor = $(this).val();
+    $('div.broadcast-message-preview').css('background-color', previewColor);
   });
-  $('input#broadcast_message_font').on('input', function() {
-    var previewColor;
-    previewColor = $(this).val();
-    return $('div.broadcast-message-preview').css('color', previewColor);
+
+  $('input#broadcast_message_font').on('input', function onMessageFontInput() {
+    const previewColor = $(this).val();
+    $('div.broadcast-message-preview').css('color', previewColor);
   });
-  previewPath = $('textarea#broadcast_message_message').data('preview-path');
-  return $('textarea#broadcast_message_message').on('input', function() {
-    var message;
-    message = $(this).val();
+
+  const previewPath = $('textarea#broadcast_message_message').data('preview-path');
+
+  $('textarea#broadcast_message_message').on('input', _.debounce(function onMessageInput() {
+    const message = $(this).val();
     if (message === '') {
-      return $('.js-broadcast-message-preview').text("Your message here");
+      $('.js-broadcast-message-preview').text('Your message here');
     } else {
-      return $.ajax({
+      $.ajax({
         url: previewPath,
-        type: "POST",
+        type: 'POST',
         data: {
-          broadcast_message: {
-            message: message
-          }
-        }
+          broadcast_message: { message },
+        },
       });
     }
-  });
-});
+  }, 250));
+}
diff --git a/app/assets/javascripts/clusters.js b/app/assets/javascripts/clusters.js
index 50dbeb06362..180aa30e98c 100644
--- a/app/assets/javascripts/clusters.js
+++ b/app/assets/javascripts/clusters.js
@@ -3,7 +3,8 @@ import Visibility from 'visibilityjs';
 import axios from 'axios';
 import Poll from './lib/utils/poll';
 import { s__ } from './locale';
-import './flash';
+import initSettingsPanels from './settings_panels';
+import Flash from './flash';
 
 /**
  * Cluster page has 2 separate parts:
@@ -24,6 +25,8 @@ class ClusterService {
 
 export default class Clusters {
   constructor() {
+    initSettingsPanels();
+
     const dataset = document.querySelector('.js-edit-cluster-form').dataset;
 
     this.state = {
diff --git a/app/assets/javascripts/dispatcher.js b/app/assets/javascripts/dispatcher.js
index 0a653d7fefc..2885923aeda 100644
--- a/app/assets/javascripts/dispatcher.js
+++ b/app/assets/javascripts/dispatcher.js
@@ -1,8 +1,6 @@
 /* eslint-disable func-names, space-before-function-paren, no-var, prefer-arrow-callback, wrap-iife, no-shadow, consistent-return, one-var, one-var-declaration-per-line, camelcase, default-case, no-new, quotes, no-duplicate-case, no-case-declarations, no-fallthrough, max-len */
 /* global ProjectSelect */
-/* global ShortcutsNavigation */
 /* global IssuableIndex */
-/* global ShortcutsIssuable */
 /* global Milestone */
 /* global IssuableForm */
 /* global LabelsSelect */
@@ -31,10 +29,7 @@ import CILintEditor from './ci_lint_editor';
 /* global ProjectImport */
 import Labels from './labels';
 import LabelManager from './label_manager';
-/* global Shortcuts */
-/* global ShortcutsFindFile */
 /* global Sidebar */
-/* global ShortcutsWiki */
 
 import CommitsList from './commits';
 import Issue from './issue';
@@ -70,6 +65,7 @@ import initSettingsPanels from './settings_panels';
 import initExperimentalFlags from './experimental_flags';
 import OAuthRememberMe from './oauth_remember_me';
 import PerformanceBar from './performance_bar';
+import initBroadcastMessagesForm from './broadcast_message';
 import initNotes from './init_notes';
 import initLegacyFilters from './init_legacy_filters';
 import initIssuableSidebar from './init_issuable_sidebar';
@@ -77,12 +73,20 @@ import initProjectVisibilitySelector from './project_visibility';
 import GpgBadges from './gpg_badges';
 import UserFeatureHelper from './helpers/user_feature_helper';
 import initChangesDropdown from './init_changes_dropdown';
+import NewGroupChild from './groups/new_group_child';
 import AbuseReports from './abuse_reports';
 import { ajaxGet, convertPermissionToBoolean } from './lib/utils/common_utils';
 import AjaxLoadingSpinner from './ajax_loading_spinner';
 import GlFieldErrors from './gl_field_errors';
 import GLForm from './gl_form';
+import Shortcuts from './shortcuts';
+import ShortcutsNavigation from './shortcuts_navigation';
+import ShortcutsFindFile from './shortcuts_find_file';
+import ShortcutsIssuable from './shortcuts_issuable';
 import U2FAuthenticate from './u2f/authenticate';
+import Members from './members';
+import memberExpirationDate from './member_expiration_date';
+import DueDateSelectors from './due_date_select';
 
 (function() {
   var Dispatcher;
@@ -166,9 +170,6 @@ import U2FAuthenticate from './u2f/authenticate';
             const filteredSearchManager = new gl.FilteredSearchManager(page === 'projects:issues:index' ? 'issues' : 'merge_requests');
             filteredSearchManager.setup();
           }
-          if (page === 'projects:merge_requests:index') {
-            new UserCallout({ setCalloutPerProject: true });
-          }
           const pagePrefix = page === 'projects:merge_requests:index' ? 'merge_request_' : 'issue_';
           IssuableIndex.init(pagePrefix);
 
@@ -232,7 +233,7 @@ import U2FAuthenticate from './u2f/authenticate';
         case 'groups:milestones:edit':
         case 'groups:milestones:update':
           new ZenMode();
-          new gl.DueDateSelectors();
+          new DueDateSelectors();
           new GLForm($('.milestone-form'), true);
           break;
         case 'projects:compare:show':
@@ -350,7 +351,10 @@ import U2FAuthenticate from './u2f/authenticate';
         case 'projects:show':
           shortcut_handler = new ShortcutsNavigation();
           new NotificationsForm();
-          new UserCallout({ setCalloutPerProject: true });
+          new UserCallout({
+            setCalloutPerProject: true,
+            className: 'js-autodevops-banner',
+          });
 
           if ($('#tree-slider').length) new TreeView();
           if ($('.blob-viewer').length) new BlobViewer();
@@ -370,9 +374,6 @@ import U2FAuthenticate from './u2f/authenticate';
         case 'projects:pipelines:new':
           new NewBranchForm($('.js-new-pipeline-form'));
           break;
-        case 'projects:pipelines:index':
-          new UserCallout({ setCalloutPerProject: true });
-          break;
         case 'projects:pipelines:builds':
         case 'projects:pipelines:failures':
         case 'projects:pipelines:show':
@@ -393,21 +394,26 @@ import U2FAuthenticate from './u2f/authenticate';
           new gl.Activities();
           break;
         case 'groups:show':
+          const newGroupChildWrapper = document.querySelector('.js-new-project-subgroup');
           shortcut_handler = new ShortcutsNavigation();
           new NotificationsForm();
           new NotificationsDropdown();
           new ProjectsList();
+
+          if (newGroupChildWrapper) {
+            new NewGroupChild(newGroupChildWrapper);
+          }
           break;
         case 'groups:group_members:index':
-          new gl.MemberExpirationDate();
-          new gl.Members();
+          memberExpirationDate();
+          new Members();
           new UsersSelect();
           break;
         case 'projects:project_members:index':
-          new gl.MemberExpirationDate('.js-access-expiration-date-groups');
+          memberExpirationDate('.js-access-expiration-date-groups');
           new GroupsSelect();
-          new gl.MemberExpirationDate();
-          new gl.Members();
+          memberExpirationDate();
+          new Members();
           new UsersSelect();
           break;
         case 'groups:new':
@@ -430,7 +436,6 @@ import U2FAuthenticate from './u2f/authenticate';
           new TreeView();
           new BlobViewer();
           new NewCommitForm($('.js-create-dir-form'));
-          new UserCallout({ setCalloutPerProject: true });
           $('#tree-slider').waitForImages(function() {
             ajaxGet(document.querySelector('.js-tree-content').dataset.logsPath);
           });
@@ -528,7 +533,7 @@ import U2FAuthenticate from './u2f/authenticate';
           break;
         case 'profiles:personal_access_tokens:index':
         case 'admin:impersonation_tokens:index':
-          new gl.DueDateSelectors();
+          new DueDateSelectors();
           break;
         case 'projects:clusters:show':
           import(/* webpackChunkName: "clusters" */ './clusters')
@@ -553,6 +558,9 @@ import U2FAuthenticate from './u2f/authenticate';
         case 'admin':
           new Admin();
           switch (path[1]) {
+            case 'broadcast_messages':
+              initBroadcastMessagesForm();
+              break;
             case 'cohorts':
               new UsagePing();
               break;
diff --git a/app/assets/javascripts/dropzone_input.js b/app/assets/javascripts/dropzone_input.js
index bd45da8c422..7a17adcd44e 100644
--- a/app/assets/javascripts/dropzone_input.js
+++ b/app/assets/javascripts/dropzone_input.js
@@ -1,308 +1,276 @@
-/* eslint-disable func-names, space-before-function-paren, wrap-iife, max-len, one-var, no-var, one-var-declaration-per-line, no-unused-vars, camelcase, quotes, no-useless-concat, prefer-template, quote-props, comma-dangle, object-shorthand, consistent-return, prefer-arrow-callback */
-/* global Dropzone */
+import Dropzone from 'dropzone';
 import _ from 'underscore';
 import './preview_markdown';
 import csrf from './lib/utils/csrf';
 
-window.DropzoneInput = (function() {
-  function DropzoneInput(form) {
-    const divHover = '<div class="div-dropzone-hover"></div>';
-    const iconPaperclip = '<i class="fa fa-paperclip div-dropzone-icon"></i>';
-    const $attachButton = form.find('.button-attach-file');
-    const $attachingFileMessage = form.find('.attaching-file-message');
-    const $cancelButton = form.find('.button-cancel-uploading-files');
-    const $retryLink = form.find('.retry-uploading-link');
-    const $uploadProgress = form.find('.uploading-progress');
-    const $uploadingErrorContainer = form.find('.uploading-error-container');
-    const $uploadingErrorMessage = form.find('.uploading-error-message');
-    const $uploadingProgressContainer = form.find('.uploading-progress-container');
-    const uploadsPath = window.uploads_path || null;
-    const maxFileSize = gon.max_file_size || 10;
-    const formTextarea = form.find('.js-gfm-input');
-    let handlePaste;
-    let pasteText;
-    let addFileToForm;
-    let updateAttachingMessage;
-    let isImage;
-    let getFilename;
-    let uploadFile;
-
-    formTextarea.wrap('<div class="div-dropzone"></div>');
-    formTextarea.on('paste', (function(_this) {
-      return function(event) {
-        return handlePaste(event);
-      };
-    })(this));
-
-    // Add dropzone area to the form.
-    const $mdArea = formTextarea.closest('.md-area');
-    form.setupMarkdownPreview();
-    const $formDropzone = form.find('.div-dropzone');
-    $formDropzone.parent().addClass('div-dropzone-wrapper');
-    $formDropzone.append(divHover);
-    $formDropzone.find('.div-dropzone-hover').append(iconPaperclip);
-
-    if (!uploadsPath) return;
-
-    const dropzone = $formDropzone.dropzone({
-      url: uploadsPath,
-      dictDefaultMessage: '',
-      clickable: true,
-      paramName: 'file',
-      maxFilesize: maxFileSize,
-      uploadMultiple: false,
-      headers: csrf.headers,
-      previewContainer: false,
-      processing: function() {
-        return $('.div-dropzone-alert').alert('close');
-      },
-      dragover: function() {
-        $mdArea.addClass('is-dropzone-hover');
-        form.find('.div-dropzone-hover').css('opacity', 0.7);
-      },
-      dragleave: function() {
-        $mdArea.removeClass('is-dropzone-hover');
-        form.find('.div-dropzone-hover').css('opacity', 0);
-      },
-      drop: function() {
-        $mdArea.removeClass('is-dropzone-hover');
-        form.find('.div-dropzone-hover').css('opacity', 0);
-        formTextarea.focus();
-      },
-      success: function(header, response) {
-        const processingFileCount = this.getQueuedFiles().length + this.getUploadingFiles().length;
-        const shouldPad = processingFileCount >= 1;
-
-        pasteText(response.link.markdown, shouldPad);
-        // Show 'Attach a file' link only when all files have been uploaded.
-        if (!processingFileCount) $attachButton.removeClass('hide');
-        addFileToForm(response.link.url);
-      },
-      error: function(file, errorMessage = 'Attaching the file failed.', xhr) {
-        // If 'error' event is fired by dropzone, the second parameter is error message.
-        // If the 'errorMessage' parameter is empty, the default error message is set.
-        // If the 'error' event is fired by backend (xhr) error response, the third parameter is
-        // xhr object (xhr.responseText is error message).
-        // On error we hide the 'Attach' and 'Cancel' buttons
-        // and show an error.
-
-        // If there's xhr error message, let's show it instead of dropzone's one.
-        const message = xhr ? xhr.responseText : errorMessage;
-
-        $uploadingErrorContainer.removeClass('hide');
-        $uploadingErrorMessage.html(message);
-        $attachButton.addClass('hide');
-        $cancelButton.addClass('hide');
-      },
-      totaluploadprogress: function(totalUploadProgress) {
-        updateAttachingMessage(this.files, $attachingFileMessage);
-        $uploadProgress.text(Math.round(totalUploadProgress) + '%');
-      },
-      sending: function(file) {
-        // DOM elements already exist.
-        // Instead of dynamically generating them,
-        // we just either hide or show them.
-        $attachButton.addClass('hide');
-        $uploadingErrorContainer.addClass('hide');
-        $uploadingProgressContainer.removeClass('hide');
-        $cancelButton.removeClass('hide');
-      },
-      removedfile: function() {
-        $attachButton.removeClass('hide');
-        $cancelButton.addClass('hide');
-        $uploadingProgressContainer.addClass('hide');
-        $uploadingErrorContainer.addClass('hide');
-      },
-      queuecomplete: function() {
-        $('.dz-preview').remove();
-        $('.markdown-area').trigger('input');
+export default function dropzoneInput(form) {
+  const divHover = '<div class="div-dropzone-hover"></div>';
+  const iconPaperclip = '<i class="fa fa-paperclip div-dropzone-icon"></i>';
+  const $attachButton = form.find('.button-attach-file');
+  const $attachingFileMessage = form.find('.attaching-file-message');
+  const $cancelButton = form.find('.button-cancel-uploading-files');
+  const $retryLink = form.find('.retry-uploading-link');
+  const $uploadProgress = form.find('.uploading-progress');
+  const $uploadingErrorContainer = form.find('.uploading-error-container');
+  const $uploadingErrorMessage = form.find('.uploading-error-message');
+  const $uploadingProgressContainer = form.find('.uploading-progress-container');
+  const uploadsPath = window.uploads_path || null;
+  const maxFileSize = gon.max_file_size || 10;
+  const formTextarea = form.find('.js-gfm-input');
+  let handlePaste;
+  let pasteText;
+  let addFileToForm;
+  let updateAttachingMessage;
+  let isImage;
+  let getFilename;
+  let uploadFile;
+
+  formTextarea.wrap('<div class="div-dropzone"></div>');
+  formTextarea.on('paste', event => handlePaste(event));
+
+  // Add dropzone area to the form.
+  const $mdArea = formTextarea.closest('.md-area');
+  form.setupMarkdownPreview();
+  const $formDropzone = form.find('.div-dropzone');
+  $formDropzone.parent().addClass('div-dropzone-wrapper');
+  $formDropzone.append(divHover);
+  $formDropzone.find('.div-dropzone-hover').append(iconPaperclip);
+
+  if (!uploadsPath) return;
+
+  const dropzone = $formDropzone.dropzone({
+    url: uploadsPath,
+    dictDefaultMessage: '',
+    clickable: true,
+    paramName: 'file',
+    maxFilesize: maxFileSize,
+    uploadMultiple: false,
+    headers: csrf.headers,
+    previewContainer: false,
+    processing: () => $('.div-dropzone-alert').alert('close'),
+    dragover: () => {
+      $mdArea.addClass('is-dropzone-hover');
+      form.find('.div-dropzone-hover').css('opacity', 0.7);
+    },
+    dragleave: () => {
+      $mdArea.removeClass('is-dropzone-hover');
+      form.find('.div-dropzone-hover').css('opacity', 0);
+    },
+    drop: () => {
+      $mdArea.removeClass('is-dropzone-hover');
+      form.find('.div-dropzone-hover').css('opacity', 0);
+      formTextarea.focus();
+    },
+    success(header, response) {
+      const processingFileCount = this.getQueuedFiles().length + this.getUploadingFiles().length;
+      const shouldPad = processingFileCount >= 1;
+
+      pasteText(response.link.markdown, shouldPad);
+      // Show 'Attach a file' link only when all files have been uploaded.
+      if (!processingFileCount) $attachButton.removeClass('hide');
+      addFileToForm(response.link.url);
+    },
+    error: (file, errorMessage = 'Attaching the file failed.', xhr) => {
+      // If 'error' event is fired by dropzone, the second parameter is error message.
+      // If the 'errorMessage' parameter is empty, the default error message is set.
+      // If the 'error' event is fired by backend (xhr) error response, the third parameter is
+      // xhr object (xhr.responseText is error message).
+      // On error we hide the 'Attach' and 'Cancel' buttons
+      // and show an error.
+
+      // If there's xhr error message, let's show it instead of dropzone's one.
+      const message = xhr ? xhr.responseText : errorMessage;
 
-        $uploadingProgressContainer.addClass('hide');
-        $cancelButton.addClass('hide');
+      $uploadingErrorContainer.removeClass('hide');
+      $uploadingErrorMessage.html(message);
+      $attachButton.addClass('hide');
+      $cancelButton.addClass('hide');
+    },
+    totaluploadprogress(totalUploadProgress) {
+      updateAttachingMessage(this.files, $attachingFileMessage);
+      $uploadProgress.text(`${Math.round(totalUploadProgress)}%`);
+    },
+    sending: () => {
+      // DOM elements already exist.
+      // Instead of dynamically generating them,
+      // we just either hide or show them.
+      $attachButton.addClass('hide');
+      $uploadingErrorContainer.addClass('hide');
+      $uploadingProgressContainer.removeClass('hide');
+      $cancelButton.removeClass('hide');
+    },
+    removedfile: () => {
+      $attachButton.removeClass('hide');
+      $cancelButton.addClass('hide');
+      $uploadingProgressContainer.addClass('hide');
+      $uploadingErrorContainer.addClass('hide');
+    },
+    queuecomplete: () => {
+      $('.dz-preview').remove();
+      $('.markdown-area').trigger('input');
+
+      $uploadingProgressContainer.addClass('hide');
+      $cancelButton.addClass('hide');
+    },
+  });
+
+  const child = $(dropzone[0]).children('textarea');
+
+  // removeAllFiles(true) stops uploading files (if any)
+  // and remove them from dropzone files queue.
+  $cancelButton.on('click', (e) => {
+    const target = e.target.closest('.js-main-target-form').querySelector('.div-dropzone');
+
+    e.preventDefault();
+    e.stopPropagation();
+    Dropzone.forElement(target).removeAllFiles(true);
+  });
+
+  // If 'error' event is fired, we store a failed files,
+  // clear dropzone files queue, change status of failed files to undefined,
+  // and add that files to the dropzone files queue again.
+  // addFile() adds file to dropzone files queue and upload it.
+  $retryLink.on('click', (e) => {
+    const dropzoneInstance = Dropzone.forElement(e.target.closest('.js-main-target-form').querySelector('.div-dropzone'));
+    const failedFiles = dropzoneInstance.files;
+
+    e.preventDefault();
+
+    // 'true' parameter of removeAllFiles() cancels
+    // uploading of files that are being uploaded at the moment.
+    dropzoneInstance.removeAllFiles(true);
+
+    failedFiles.map((failedFile) => {
+      const file = failedFile;
+
+      if (file.status === Dropzone.ERROR) {
+        file.status = undefined;
+        file.accepted = undefined;
       }
-    });
-
-    const child = $(dropzone[0]).children('textarea');
-
-    // removeAllFiles(true) stops uploading files (if any)
-    // and remove them from dropzone files queue.
-    $cancelButton.on('click', (e) => {
-      const target = e.target.closest('.js-main-target-form').querySelector('.div-dropzone');
-
-      e.preventDefault();
-      e.stopPropagation();
-      Dropzone.forElement(target).removeAllFiles(true);
-    });
-
-    // If 'error' event is fired, we store a failed files,
-    // clear dropzone files queue, change status of failed files to undefined,
-    // and add that files to the dropzone files queue again.
-    // addFile() adds file to dropzone files queue and upload it.
-    $retryLink.on('click', (e) => {
-      const dropzoneInstance = Dropzone.forElement(e.target.closest('.js-main-target-form').querySelector('.div-dropzone'));
-      const failedFiles = dropzoneInstance.files;
 
-      e.preventDefault();
-
-      // 'true' parameter of removeAllFiles() cancels uploading of files that are being uploaded at the moment.
-      dropzoneInstance.removeAllFiles(true);
-
-      failedFiles.map((failedFile, i) => {
-        const file = failedFile;
-
-        if (file.status === Dropzone.ERROR) {
-          file.status = undefined;
-          file.accepted = undefined;
-        }
-
-        return dropzoneInstance.addFile(file);
-      });
+      return dropzoneInstance.addFile(file);
     });
-
-    handlePaste = function(event) {
-      var filename, image, pasteEvent, text;
-      pasteEvent = event.originalEvent;
-      if (pasteEvent.clipboardData && pasteEvent.clipboardData.items) {
-        image = isImage(pasteEvent);
-        if (image) {
-          event.preventDefault();
-          filename = getFilename(pasteEvent) || 'image.png';
-          text = `{{${filename}}}`;
-          pasteText(text);
-          return uploadFile(image.getAsFile(), filename);
-        }
+  });
+  // eslint-disable-next-line consistent-return
+  handlePaste = (event) => {
+    const pasteEvent = event.originalEvent;
+    if (pasteEvent.clipboardData && pasteEvent.clipboardData.items) {
+      const image = isImage(pasteEvent);
+      if (image) {
+        event.preventDefault();
+        const filename = getFilename(pasteEvent) || 'image.png';
+        const text = `{{${filename}}}`;
+        pasteText(text);
+        return uploadFile(image.getAsFile(), filename);
       }
-    };
-
-    isImage = function(data) {
-      var i, item;
-      i = 0;
-      while (i < data.clipboardData.items.length) {
-        item = data.clipboardData.items[i];
-        if (item.type.indexOf('image') !== -1) {
-          return item;
-        }
-        i += 1;
-      }
-      return false;
-    };
-
-    pasteText = function(text, shouldPad) {
-      var afterSelection, beforeSelection, caretEnd, caretStart, textEnd;
-      var formattedText = text;
-      if (shouldPad) formattedText += "\n\n";
-      const textarea = child.get(0);
-      caretStart = textarea.selectionStart;
-      caretEnd = textarea.selectionEnd;
-      textEnd = $(child).val().length;
-      beforeSelection = $(child).val().substring(0, caretStart);
-      afterSelection = $(child).val().substring(caretEnd, textEnd);
-      $(child).val(beforeSelection + formattedText + afterSelection);
-      textarea.setSelectionRange(caretStart + formattedText.length, caretEnd + formattedText.length);
-      textarea.style.height = `${textarea.scrollHeight}px`;
-      formTextarea.get(0).dispatchEvent(new Event('input'));
-      return formTextarea.trigger('input');
-    };
-
-    addFileToForm = function(path) {
-      $(form).append('<input type="hidden" name="files[]" value="' + _.escape(path) + '">');
-    };
-
-    getFilename = function(e) {
-      var value;
-      if (window.clipboardData && window.clipboardData.getData) {
-        value = window.clipboardData.getData('Text');
-      } else if (e.clipboardData && e.clipboardData.getData) {
-        value = e.clipboardData.getData('text/plain');
-      }
-      value = value.split("\r");
-      return value[0];
-    };
-
-    const showSpinner = function(e) {
-      return $uploadingProgressContainer.removeClass('hide');
-    };
-
-    const closeSpinner = function() {
-      return $uploadingProgressContainer.addClass('hide');
-    };
-
-    const showError = function(message) {
-      $uploadingErrorContainer.removeClass('hide');
-      $uploadingErrorMessage.html(message);
-    };
-
-    const closeAlertMessage = function() {
-      return form.find('.div-dropzone-alert').alert('close');
-    };
-
-    const insertToTextArea = function(filename, url) {
-      const $child = $(child);
-      $child.val(function(index, val) {
-        return val.replace(`{{${filename}}}`, url);
-      });
-
-      $child.trigger('change');
-    };
-
-    const appendToTextArea = function(url) {
-      return $(child).val(function(index, val) {
-        return val + url + "\n";
-      });
-    };
-
-    uploadFile = function(item, filename) {
-      var formData;
-      formData = new FormData();
-      formData.append('file', item, filename);
-      return $.ajax({
-        url: uploadsPath,
-        type: 'POST',
-        data: formData,
-        dataType: 'json',
-        processData: false,
-        contentType: false,
-        headers: csrf.headers,
-        beforeSend: function() {
-          showSpinner();
-          return closeAlertMessage();
-        },
-        success: function(e, textStatus, response) {
-          return insertToTextArea(filename, response.responseJSON.link.markdown);
-        },
-        error: function(response) {
-          return showError(response.responseJSON.message);
-        },
-        complete: function() {
-          return closeSpinner();
-        }
-      });
-    };
-
-    updateAttachingMessage = (files, messageContainer) => {
-      let attachingMessage;
-      const filesCount = files.filter(function(file) {
-        return file.status === 'uploading' ||
-               file.status === 'queued';
-      }).length;
-
-      // Dinamycally change uploading files text depending on files number in
-      // dropzone files queue.
-      if (filesCount > 1) {
-        attachingMessage = 'Attaching ' + filesCount + ' files -';
-      } else {
-        attachingMessage = 'Attaching a file -';
+    }
+  };
+
+  isImage = (data) => {
+    let i = 0;
+    while (i < data.clipboardData.items.length) {
+      const item = data.clipboardData.items[i];
+      if (item.type.indexOf('image') !== -1) {
+        return item;
       }
-
-      messageContainer.text(attachingMessage);
-    };
-
-    form.find('.markdown-selector').click(function(e) {
-      e.preventDefault();
-      $(this).closest('.gfm-form').find('.div-dropzone').click();
-      formTextarea.focus();
+      i += 1;
+    }
+    return false;
+  };
+
+  pasteText = (text, shouldPad) => {
+    let formattedText = text;
+    if (shouldPad) {
+      formattedText += '\n\n';
+    }
+    const textarea = child.get(0);
+    const caretStart = textarea.selectionStart;
+    const caretEnd = textarea.selectionEnd;
+    const textEnd = $(child).val().length;
+    const beforeSelection = $(child).val().substring(0, caretStart);
+    const afterSelection = $(child).val().substring(caretEnd, textEnd);
+    $(child).val(beforeSelection + formattedText + afterSelection);
+    textarea.setSelectionRange(caretStart + formattedText.length, caretEnd + formattedText.length);
+    textarea.style.height = `${textarea.scrollHeight}px`;
+    formTextarea.get(0).dispatchEvent(new Event('input'));
+    return formTextarea.trigger('input');
+  };
+
+  addFileToForm = (path) => {
+    $(form).append(`<input type="hidden" name="files[]" value="${_.escape(path)}">`);
+  };
+
+  getFilename = (e) => {
+    let value;
+    if (window.clipboardData && window.clipboardData.getData) {
+      value = window.clipboardData.getData('Text');
+    } else if (e.clipboardData && e.clipboardData.getData) {
+      value = e.clipboardData.getData('text/plain');
+    }
+    value = value.split('\r');
+    return value[0];
+  };
+
+  const showSpinner = () => $uploadingProgressContainer.removeClass('hide');
+
+  const closeSpinner = () => $uploadingProgressContainer.addClass('hide');
+
+  const showError = (message) => {
+    $uploadingErrorContainer.removeClass('hide');
+    $uploadingErrorMessage.html(message);
+  };
+
+  const closeAlertMessage = () => form.find('.div-dropzone-alert').alert('close');
+
+  const insertToTextArea = (filename, url) => {
+    const $child = $(child);
+    $child.val((index, val) => val.replace(`{{${filename}}}`, url));
+
+    $child.trigger('change');
+  };
+
+  uploadFile = (item, filename) => {
+    const formData = new FormData();
+    formData.append('file', item, filename);
+    return $.ajax({
+      url: uploadsPath,
+      type: 'POST',
+      data: formData,
+      dataType: 'json',
+      processData: false,
+      contentType: false,
+      headers: csrf.headers,
+      beforeSend: () => {
+        showSpinner();
+        return closeAlertMessage();
+      },
+      success: (e, text, response) => {
+        const md = response.responseJSON.link.markdown;
+        insertToTextArea(filename, md);
+      },
+      error: response => showError(response.responseJSON.message),
+      complete: () => closeSpinner(),
     });
-  }
-
-  return DropzoneInput;
-})();
+  };
+
+  updateAttachingMessage = (files, messageContainer) => {
+    let attachingMessage;
+    const filesCount = files.filter(file => file.status === 'uploading' || file.status === 'queued').length;
+
+    // Dinamycally change uploading files text depending on files number in
+    // dropzone files queue.
+    if (filesCount > 1) {
+      attachingMessage = `Attaching ${filesCount} files -`;
+    } else {
+      attachingMessage = 'Attaching a file -';
+    }
+
+    messageContainer.text(attachingMessage);
+  };
+
+  form.find('.markdown-selector').click(function onMarkdownClick(e) {
+    e.preventDefault();
+    $(this).closest('.gfm-form').find('.div-dropzone').click();
+    formTextarea.focus();
+  });
+}
diff --git a/app/assets/javascripts/due_date_select.js b/app/assets/javascripts/due_date_select.js
index ee71728184f..ada985913bb 100644
--- a/app/assets/javascripts/due_date_select.js
+++ b/app/assets/javascripts/due_date_select.js
@@ -1,8 +1,7 @@
-/* eslint-disable wrap-iife, func-names, space-before-function-paren, comma-dangle, prefer-template, consistent-return, class-methods-use-this, arrow-body-style, no-unused-vars, no-underscore-dangle, no-new, max-len, no-sequences, no-unused-expressions, no-param-reassign */
 /* global dateFormat */
 
 import Pikaday from 'pikaday';
-import DateFix from './lib/utils/datefix';
+import { parsePikadayDate, pikadayToString } from './lib/utils/datefix';
 
 class DueDateSelect {
   constructor({ $dropdown, $loading } = {}) {
@@ -17,8 +16,8 @@ class DueDateSelect {
     this.$value = $block.find('.value');
     this.$valueContent = $block.find('.value-content');
     this.$sidebarValue = $('.js-due-date-sidebar-value', $block);
-    this.fieldName = $dropdown.data('field-name'),
-    this.abilityName = $dropdown.data('ability-name'),
+    this.fieldName = $dropdown.data('field-name');
+    this.abilityName = $dropdown.data('ability-name');
     this.issueUpdateURL = $dropdown.data('issue-update');
 
     this.rawSelectedDate = null;
@@ -39,20 +38,20 @@ class DueDateSelect {
       hidden: () => {
         this.$selectbox.hide();
         this.$value.css('display', '');
-      }
+      },
     });
   }
 
   initDatePicker() {
     const $dueDateInput = $(`input[name='${this.fieldName}']`);
-    const dateFix = DateFix.dashedFix($dueDateInput.val());
     const calendar = new Pikaday({
       field: $dueDateInput.get(0),
       theme: 'gitlab-theme',
       format: 'yyyy-mm-dd',
+      parse: dateString => parsePikadayDate(dateString),
+      toString: date => pikadayToString(date),
       onSelect: (dateText) => {
-        const formattedDate = dateFormat(new Date(dateText), 'yyyy-mm-dd');
-        $dueDateInput.val(formattedDate);
+        $dueDateInput.val(calendar.toString(dateText));
 
         if (this.$dropdown.hasClass('js-issue-boards-due-date')) {
           gl.issueBoards.BoardsStore.detail.issue.dueDate = $dueDateInput.val();
@@ -60,10 +59,10 @@ class DueDateSelect {
         } else {
           this.saveDueDate(true);
         }
-      }
+      },
     });
 
-    calendar.setDate(dateFix);
+    calendar.setDate(parsePikadayDate($dueDateInput.val()));
     this.$datePicker.append(calendar.el);
     this.$datePicker.data('pikaday', calendar);
   }
@@ -79,8 +78,8 @@ class DueDateSelect {
         gl.issueBoards.BoardsStore.detail.issue.dueDate = '';
         this.updateIssueBoardIssue();
       } else {
-        $("input[name='" + this.fieldName + "']").val('');
-        return this.saveDueDate(false);
+        $(`input[name='${this.fieldName}']`).val('');
+        this.saveDueDate(false);
       }
     });
   }
@@ -111,7 +110,7 @@ class DueDateSelect {
     this.datePayload = datePayload;
   }
 
-  updateIssueBoardIssue () {
+  updateIssueBoardIssue() {
     this.$loading.fadeIn();
     this.$dropdown.trigger('loading.gl.dropdown');
     this.$selectbox.hide();
@@ -149,8 +148,8 @@ class DueDateSelect {
         return selectedDateValue.length ?
           $('.js-remove-due-date-holder').removeClass('hidden') :
           $('.js-remove-due-date-holder').addClass('hidden');
-      }
-    }).done((data) => {
+      },
+    }).done(() => {
       if (isDropdown) {
         this.$dropdown.trigger('loaded.gl.dropdown');
         this.$dropdown.dropdown('toggle');
@@ -160,27 +159,28 @@ class DueDateSelect {
   }
 }
 
-class DueDateSelectors {
+export default class DueDateSelectors {
   constructor() {
     this.initMilestoneDatePicker();
     this.initIssuableSelect();
   }
-
+  // eslint-disable-next-line class-methods-use-this
   initMilestoneDatePicker() {
-    $('.datepicker').each(function() {
+    $('.datepicker').each(function initPikadayMilestone() {
       const $datePicker = $(this);
-      const dateFix = DateFix.dashedFix($datePicker.val());
       const calendar = new Pikaday({
         field: $datePicker.get(0),
         theme: 'gitlab-theme animate-picker',
         format: 'yyyy-mm-dd',
         container: $datePicker.parent().get(0),
+        parse: dateString => parsePikadayDate(dateString),
+        toString: date => pikadayToString(date),
         onSelect(dateText) {
-          $datePicker.val(dateFormat(new Date(dateText), 'yyyy-mm-dd'));
-        }
+          $datePicker.val(calendar.toString(dateText));
+        },
       });
 
-      calendar.setDate(dateFix);
+      calendar.setDate(parsePikadayDate($datePicker.val()));
 
       $datePicker.data('pikaday', calendar);
     });
@@ -191,19 +191,17 @@ class DueDateSelectors {
       calendar.setDate(null);
     });
   }
-
+  // eslint-disable-next-line class-methods-use-this
   initIssuableSelect() {
     const $loading = $('.js-issuable-update .due_date').find('.block-loading').hide();
 
     $('.js-due-date-select').each((i, dropdown) => {
       const $dropdown = $(dropdown);
+      // eslint-disable-next-line no-new
       new DueDateSelect({
         $dropdown,
-        $loading
+        $loading,
       });
     });
   }
 }
-
-window.gl = window.gl || {};
-window.gl.DueDateSelectors = DueDateSelectors;
diff --git a/app/assets/javascripts/filterable_list.js b/app/assets/javascripts/filterable_list.js
index 6d516a253bb..9e91f72b2ea 100644
--- a/app/assets/javascripts/filterable_list.js
+++ b/app/assets/javascripts/filterable_list.js
@@ -6,10 +6,11 @@ import _ from 'underscore';
  */
 
 export default class FilterableList {
-  constructor(form, filter, holder) {
+  constructor(form, filter, holder, filterInputField = 'filter_groups') {
     this.filterForm = form;
     this.listFilterElement = filter;
     this.listHolderElement = holder;
+    this.filterInputField = filterInputField;
     this.isBusy = false;
   }
 
@@ -32,10 +33,10 @@ export default class FilterableList {
   onFilterInput() {
     const $form = $(this.filterForm);
     const queryData = {};
-    const filterGroupsParam = $form.find('[name="filter_groups"]').val();
+    const filterGroupsParam = $form.find(`[name="${this.filterInputField}"]`).val();
 
     if (filterGroupsParam) {
-      queryData.filter_groups = filterGroupsParam;
+      queryData[this.filterInputField] = filterGroupsParam;
     }
 
     this.filterResults(queryData);
diff --git a/app/assets/javascripts/filtered_search/filtered_search_visual_tokens.js b/app/assets/javascripts/filtered_search/filtered_search_visual_tokens.js
index dd24fc44d2a..d2f92929b8a 100644
--- a/app/assets/javascripts/filtered_search/filtered_search_visual_tokens.js
+++ b/app/assets/javascripts/filtered_search/filtered_search_visual_tokens.js
@@ -123,8 +123,8 @@ class FilteredSearchVisualTokens {
         /* eslint-disable no-param-reassign */
         tokenValueContainer.dataset.originalValue = tokenValue;
         tokenValueElement.innerHTML = `
-          <img class="avatar s20" src="${user.avatar_url}" alt="${user.name}'s avatar">
-          ${user.name}
+          <img class="avatar s20" src="${user.avatar_url}" alt="">
+          ${_.escape(user.name)}
         `;
         /* eslint-enable no-param-reassign */
       })
diff --git a/app/assets/javascripts/flash.js b/app/assets/javascripts/flash.js
index bc5cd818e1c..67261c1c9b4 100644
--- a/app/assets/javascripts/flash.js
+++ b/app/assets/javascripts/flash.js
@@ -40,6 +40,10 @@ const createFlashEl = (message, type, isInContentWrapper = false) => `
   </div>
 `;
 
+const removeFlashClickListener = (flashEl, fadeTransition) => {
+  flashEl.parentNode.addEventListener('click', () => hideFlash(flashEl, fadeTransition));
+};
+
 /*
  *  Flash banner supports different types of Flash configurations
  *  along with ability to provide actionConfig which can be used to show
@@ -70,7 +74,7 @@ const createFlash = function createFlash(
   flashContainer.innerHTML = createFlashEl(message, type, isInContentWrapper);
 
   const flashEl = flashContainer.querySelector(`.flash-${type}`);
-  flashEl.addEventListener('click', () => hideFlash(flashEl, fadeTransition));
+  removeFlashClickListener(flashEl, fadeTransition);
 
   if (actionConfig) {
     flashEl.innerHTML += createAction(actionConfig);
@@ -90,5 +94,6 @@ export {
   createFlashEl,
   createAction,
   hideFlash,
+  removeFlashClickListener,
 };
 window.Flash = createFlash;
diff --git a/app/assets/javascripts/gl_form.js b/app/assets/javascripts/gl_form.js
index 48d0c12143a..48cd43d3348 100644
--- a/app/assets/javascripts/gl_form.js
+++ b/app/assets/javascripts/gl_form.js
@@ -1,7 +1,7 @@
-/* global DropzoneInput */
 /* global autosize */
 
 import GfmAutoComplete from './gfm_auto_complete';
+import dropzoneInput from './dropzone_input';
 
 export default class GLForm {
   constructor(form, enableGFM = false) {
@@ -41,7 +41,7 @@ export default class GLForm {
         mergeRequests: this.enableGFM,
         labels: this.enableGFM,
       });
-      new DropzoneInput(this.form); // eslint-disable-line no-new
+      dropzoneInput(this.form);
       autosize(this.textarea);
     }
     // form and textarea event listeners
diff --git a/app/assets/javascripts/groups/components/app.vue b/app/assets/javascripts/groups/components/app.vue
new file mode 100644
index 00000000000..2c0b6ab4ea8
--- /dev/null
+++ b/app/assets/javascripts/groups/components/app.vue
@@ -0,0 +1,194 @@
+<script>
+/* global Flash */
+
+import eventHub from '../event_hub';
+import { getParameterByName } from '../../lib/utils/common_utils';
+import loadingIcon from '../../vue_shared/components/loading_icon.vue';
+import { COMMON_STR } from '../constants';
+
+import groupsComponent from './groups.vue';
+
+export default {
+  components: {
+    loadingIcon,
+    groupsComponent,
+  },
+  props: {
+    store: {
+      type: Object,
+      required: true,
+    },
+    service: {
+      type: Object,
+      required: true,
+    },
+    hideProjects: {
+      type: Boolean,
+      required: true,
+    },
+  },
+  data() {
+    return {
+      isLoading: true,
+      isSearchEmpty: false,
+      searchEmptyMessage: '',
+    };
+  },
+  computed: {
+    groups() {
+      return this.store.getGroups();
+    },
+    pageInfo() {
+      return this.store.getPaginationInfo();
+    },
+  },
+  methods: {
+    fetchGroups({ parentId, page, filterGroupsBy, sortBy, archived, updatePagination }) {
+      return this.service.getGroups(parentId, page, filterGroupsBy, sortBy, archived)
+                .then((res) => {
+                  if (updatePagination) {
+                    this.updatePagination(res.headers);
+                  }
+
+                  return res;
+                })
+                .then(res => res.json())
+                .catch(() => {
+                  this.isLoading = false;
+                  $.scrollTo(0);
+
+                  Flash(COMMON_STR.FAILURE);
+                });
+    },
+    fetchAllGroups() {
+      const page = getParameterByName('page') || null;
+      const sortBy = getParameterByName('sort') || null;
+      const archived = getParameterByName('archived') || null;
+      const filterGroupsBy = getParameterByName('filter') || null;
+
+      this.isLoading = true;
+      // eslint-disable-next-line promise/catch-or-return
+      this.fetchGroups({
+        page,
+        filterGroupsBy,
+        sortBy,
+        archived,
+        updatePagination: true,
+      }).then((res) => {
+        this.isLoading = false;
+        this.updateGroups(res, Boolean(filterGroupsBy));
+      });
+    },
+    fetchPage(page, filterGroupsBy, sortBy, archived) {
+      this.isLoading = true;
+
+      // eslint-disable-next-line promise/catch-or-return
+      this.fetchGroups({
+        page,
+        filterGroupsBy,
+        sortBy,
+        archived,
+        updatePagination: true,
+      }).then((res) => {
+        this.isLoading = false;
+        $.scrollTo(0);
+
+        const currentPath = gl.utils.mergeUrlParams({ page }, window.location.href);
+        window.history.replaceState({
+          page: currentPath,
+        }, document.title, currentPath);
+
+        this.updateGroups(res);
+      });
+    },
+    toggleChildren(group) {
+      const parentGroup = group;
+      if (!parentGroup.isOpen) {
+        if (parentGroup.children.length === 0) {
+          parentGroup.isChildrenLoading = true;
+          // eslint-disable-next-line promise/catch-or-return
+          this.fetchGroups({
+            parentId: parentGroup.id,
+          }).then((res) => {
+            this.store.setGroupChildren(parentGroup, res);
+          }).catch(() => {
+            parentGroup.isChildrenLoading = false;
+          });
+        } else {
+          parentGroup.isOpen = true;
+        }
+      } else {
+        parentGroup.isOpen = false;
+      }
+    },
+    leaveGroup(group, parentGroup) {
+      const targetGroup = group;
+      targetGroup.isBeingRemoved = true;
+      this.service.leaveGroup(targetGroup.leavePath)
+        .then(res => res.json())
+        .then((res) => {
+          $.scrollTo(0);
+          this.store.removeGroup(targetGroup, parentGroup);
+          Flash(res.notice, 'notice');
+        })
+        .catch((err) => {
+          let message = COMMON_STR.FAILURE;
+          if (err.status === 403) {
+            message = COMMON_STR.LEAVE_FORBIDDEN;
+          }
+          Flash(message);
+          targetGroup.isBeingRemoved = false;
+        });
+    },
+    updatePagination(headers) {
+      this.store.setPaginationInfo(headers);
+    },
+    updateGroups(groups, fromSearch) {
+      this.isSearchEmpty = groups ? groups.length === 0 : false;
+      if (fromSearch) {
+        this.store.setSearchedGroups(groups);
+      } else {
+        this.store.setGroups(groups);
+      }
+    },
+  },
+  created() {
+    this.searchEmptyMessage = this.hideProjects ?
+      COMMON_STR.GROUP_SEARCH_EMPTY : COMMON_STR.GROUP_PROJECT_SEARCH_EMPTY;
+
+    eventHub.$on('fetchPage', this.fetchPage);
+    eventHub.$on('toggleChildren', this.toggleChildren);
+    eventHub.$on('leaveGroup', this.leaveGroup);
+    eventHub.$on('updatePagination', this.updatePagination);
+    eventHub.$on('updateGroups', this.updateGroups);
+  },
+  mounted() {
+    this.fetchAllGroups();
+  },
+  beforeDestroy() {
+    eventHub.$off('fetchPage', this.fetchPage);
+    eventHub.$off('toggleChildren', this.toggleChildren);
+    eventHub.$off('leaveGroup', this.leaveGroup);
+    eventHub.$off('updatePagination', this.updatePagination);
+    eventHub.$off('updateGroups', this.updateGroups);
+  },
+};
+</script>
+
+<template>
+  <div>
+    <loading-icon
+      class="loading-animation prepend-top-20"
+      size="2"
+      v-if="isLoading"
+      :label="s__('GroupsTree|Loading groups')"
+    />
+    <groups-component
+      v-if="!isLoading"
+      :groups="groups"
+      :search-empty="isSearchEmpty"
+      :search-empty-message="searchEmptyMessage"
+      :page-info="pageInfo"
+    />
+  </div>
+</template>
diff --git a/app/assets/javascripts/groups/components/group_folder.vue b/app/assets/javascripts/groups/components/group_folder.vue
index 7cc6c4b0359..e60221fa08d 100644
--- a/app/assets/javascripts/groups/components/group_folder.vue
+++ b/app/assets/javascripts/groups/components/group_folder.vue
@@ -1,15 +1,27 @@
 <script>
+import { n__ } from '../../locale';
+import { MAX_CHILDREN_COUNT } from '../constants';
+
 export default {
   props: {
-    groups: {
-      type: Object,
-      required: true,
-    },
-    baseGroup: {
+    parentGroup: {
       type: Object,
       required: false,
       default: () => ({}),
     },
+    groups: {
+      type: Array,
+      required: false,
+      default: () => ([]),
+    },
+  },
+  computed: {
+    hasMoreChildren() {
+      return this.parentGroup.childrenCount > MAX_CHILDREN_COUNT;
+    },
+    moreChildrenStats() {
+      return n__('One more item', '%d more items', this.parentGroup.childrenCount - this.parentGroup.children.length);
+    },
   },
 };
 </script>
@@ -20,8 +32,20 @@ export default {
       v-for="(group, index) in groups"
       :key="index"
       :group="group"
-      :base-group="baseGroup"
-      :collection="groups"
+      :parent-group="parentGroup"
     />
+    <li
+      v-if="hasMoreChildren"
+      class="group-row">
+      <a
+        :href="parentGroup.relativePath"
+        class="group-row-contents has-more-items">
+        <i
+          class="fa fa-external-link"
+          aria-hidden="true"
+        />
+        {{moreChildrenStats}}
+      </a>
+    </li>
   </ul>
 </template>
diff --git a/app/assets/javascripts/groups/components/group_item.vue b/app/assets/javascripts/groups/components/group_item.vue
index 2060410e991..356a95c05ca 100644
--- a/app/assets/javascripts/groups/components/group_item.vue
+++ b/app/assets/javascripts/groups/components/group_item.vue
@@ -2,49 +2,28 @@
 import identicon from '../../vue_shared/components/identicon.vue';
 import eventHub from '../event_hub';
 
+import itemCaret from './item_caret.vue';
+import itemTypeIcon from './item_type_icon.vue';
+import itemStats from './item_stats.vue';
+import itemActions from './item_actions.vue';
+
 export default {
   components: {
     identicon,
+    itemCaret,
+    itemTypeIcon,
+    itemStats,
+    itemActions,
   },
   props: {
-    group: {
-      type: Object,
-      required: true,
-    },
-    baseGroup: {
+    parentGroup: {
       type: Object,
       required: false,
       default: () => ({}),
     },
-    collection: {
+    group: {
       type: Object,
-      required: false,
-      default: () => ({}),
-    },
-  },
-  methods: {
-    onClickRowGroup(e) {
-      e.stopPropagation();
-
-      // Skip for buttons
-      if (!(e.target.tagName === 'A') && !(e.target.tagName === 'I' && e.target.parentElement.tagName === 'A')) {
-        if (this.group.hasSubgroups) {
-          eventHub.$emit('toggleSubGroups', this.group);
-        } else {
-          window.location.href = this.group.groupPath;
-        }
-      }
-    },
-    onLeaveGroup(e) {
-      e.preventDefault();
-
-      // eslint-disable-next-line no-alert
-      if (confirm(`Are you sure you want to leave the "${this.group.fullName}" group?`)) {
-        this.leaveGroup();
-      }
-    },
-    leaveGroup() {
-      eventHub.$emit('leaveGroup', this.group, this.collection);
+      required: true,
     },
   },
   computed: {
@@ -53,51 +32,33 @@ export default {
     },
     rowClass() {
       return {
-        'group-row': true,
         'is-open': this.group.isOpen,
-        'has-subgroups': this.group.hasSubgroups,
-        'no-description': !this.group.description,
+        'has-children': this.hasChildren,
+        'has-description': this.group.description,
+        'being-removed': this.group.isBeingRemoved,
       };
     },
-    visibilityIcon() {
-      return {
-        fa: true,
-        'fa-globe': this.group.visibility === 'public',
-        'fa-shield': this.group.visibility === 'internal',
-        'fa-lock': this.group.visibility === 'private',
-      };
+    hasChildren() {
+      return this.group.childrenCount > 0;
     },
-    fullPath() {
-      let fullPath = '';
-
-      if (this.group.isOrphan) {
-        // check if current group is baseGroup
-        if (Object.keys(this.baseGroup).length > 0 && this.baseGroup !== this.group) {
-          // Remove baseGroup prefix from our current group.fullName. e.g:
-          // baseGroup.fullName: `level1`
-          // group.fullName: `level1 / level2 / level3`
-          // Result: `level2 / level3`
-          const gfn = this.group.fullName;
-          const bfn = this.baseGroup.fullName;
-          const length = bfn.length;
-          const start = gfn.indexOf(bfn);
-          const extraPrefixChars = 3;
-
-          fullPath = gfn.substr(start + length + extraPrefixChars);
+    hasAvatar() {
+      return this.group.avatarUrl !== null;
+    },
+    isGroup() {
+      return this.group.type === 'group';
+    },
+  },
+  methods: {
+    onClickRowGroup(e) {
+      const NO_EXPAND_CLS = 'no-expand';
+      if (!(e.target.classList.contains(NO_EXPAND_CLS) ||
+            e.target.parentElement.classList.contains(NO_EXPAND_CLS))) {
+        if (this.hasChildren) {
+          eventHub.$emit('toggleChildren', this.group);
         } else {
-          fullPath = this.group.fullName;
+          gl.utils.visitUrl(this.group.relativePath);
         }
-      } else {
-        fullPath = this.group.name;
       }
-
-      return fullPath;
-    },
-    hasGroups() {
-      return Object.keys(this.group.subGroups).length > 0;
-    },
-    hasAvatar() {
-      return this.group.avatarUrl && this.group.avatarUrl.indexOf('/assets/no_group_avatar') === -1;
     },
   },
 };
@@ -108,98 +69,36 @@ export default {
     @click.stop="onClickRowGroup"
     :id="groupDomId"
     :class="rowClass"
+    class="group-row"
     >
     <div
       class="group-row-contents">
-      <div
-        class="controls">
-        <a
-          v-if="group.canEdit"
-          class="edit-group btn"
-          :href="group.editPath">
-          <i
-            class="fa fa-cogs"
-            aria-hidden="true"
-          >
-          </i>
-        </a>
-        <a
-          @click="onLeaveGroup"
-          :href="group.leavePath"
-          class="leave-group btn"
-          title="Leave this group">
-          <i
-            class="fa fa-sign-out"
-            aria-hidden="true"
-          >
-          </i>
-        </a>
-      </div>
-      <div
-        class="stats">
-        <span
-          class="number-projects">
-          <i
-            class="fa fa-bookmark"
-            aria-hidden="true"
-          >
-          </i>
-          {{group.numberProjects}}
-        </span>
-        <span
-          class="number-users">
-          <i
-            class="fa fa-users"
-            aria-hidden="true"
-          >
-          </i>
-          {{group.numberUsers}}
-        </span>
-        <span
-          class="group-visibility">
-          <i
-            :class="visibilityIcon"
-            aria-hidden="true"
-          >
-          </i>
-        </span>
-      </div>
+      <item-actions
+        v-if="isGroup"
+        :group="group"
+        :parent-group="parentGroup"
+      />
+      <item-stats
+        :item="group"
+      />
       <div
         class="folder-toggle-wrap">
-        <span
-          class="folder-caret"
-          v-if="group.hasSubgroups">
-          <i
-            v-if="group.isOpen"
-            class="fa fa-caret-down"
-            aria-hidden="true"
-          >
-          </i>
-          <i
-            v-if="!group.isOpen"
-            class="fa fa-caret-right"
-            aria-hidden="true"
-          >
-          </i>
-        </span>
-        <span class="folder-icon">
-          <i
-            v-if="group.isOpen"
-            class="fa fa-folder-open"
-            aria-hidden="true"
-          >
-          </i>
-          <i
-            v-if="!group.isOpen"
-            class="fa fa-folder"
-            aria-hidden="true">
-          </i>
-        </span>
+        <item-caret
+          :is-group-open="group.isOpen"
+        />
+        <item-type-icon
+          :item-type="group.type"
+          :is-group-open="group.isOpen"
+        />
       </div>
       <div
-        class="avatar-container s40 hidden-xs">
+        class="avatar-container s40 hidden-xs"
+        :class="{ 'content-loading': group.isChildrenLoading }"
+      >
         <a
-          :href="group.groupPath">
+          :href="group.relativePath"
+          class="no-expand"
+        >
           <img
             v-if="hasAvatar"
             class="avatar s40"
@@ -215,19 +114,22 @@ export default {
       <div
         class="title">
         <a
-          :href="group.groupPath">{{fullPath}}</a>
-        <template v-if="group.permissions.humanGroupAccess">
-        as
-        <span class="access-type">{{group.permissions.humanGroupAccess}}</span>
-        </template>
+          :href="group.relativePath"
+          class="no-expand">{{group.fullName}}</a>
+        <span
+          v-if="group.permission"
+          class="access-type"
+        >
+          {{s__('GroupsTreeRole|as')}} {{group.permission}}
+        </span>
       </div>
       <div
         class="description">{{group.description}}</div>
     </div>
     <group-folder
-      v-if="group.isOpen && hasGroups"
-      :groups="group.subGroups"
-      :baseGroup="group"
+      v-if="group.isOpen && hasChildren"
+      :parent-group="group"
+      :groups="group.children"
     />
   </li>
 </template>
diff --git a/app/assets/javascripts/groups/components/groups.vue b/app/assets/javascripts/groups/components/groups.vue
index d17a43b048a..75a2bf34887 100644
--- a/app/assets/javascripts/groups/components/groups.vue
+++ b/app/assets/javascripts/groups/components/groups.vue
@@ -4,24 +4,33 @@ import eventHub from '../event_hub';
 import { getParameterByName } from '../../lib/utils/common_utils';
 
 export default {
+  components: {
+    tablePagination,
+  },
   props: {
     groups: {
-      type: Object,
+      type: Array,
       required: true,
     },
     pageInfo: {
       type: Object,
       required: true,
     },
-  },
-  components: {
-    tablePagination,
+    searchEmpty: {
+      type: Boolean,
+      required: true,
+    },
+    searchEmptyMessage: {
+      type: String,
+      required: true,
+    },
   },
   methods: {
     change(page) {
       const filterGroupsParam = getParameterByName('filter_groups');
       const sortParam = getParameterByName('sort');
-      eventHub.$emit('fetchPage', page, filterGroupsParam, sortParam);
+      const archivedParam = getParameterByName('archived');
+      eventHub.$emit('fetchPage', page, filterGroupsParam, sortParam, archivedParam);
     },
   },
 };
@@ -29,10 +38,17 @@ export default {
 
 <template>
   <div class="groups-list-tree-container">
+    <div
+      v-if="searchEmpty"
+      class="has-no-search-results">
+      {{searchEmptyMessage}}
+    </div>
     <group-folder
+      v-if="!searchEmpty"
       :groups="groups"
     />
     <table-pagination
+      v-if="!searchEmpty"
       :change="change"
       :pageInfo="pageInfo"
     />
diff --git a/app/assets/javascripts/groups/components/item_actions.vue b/app/assets/javascripts/groups/components/item_actions.vue
new file mode 100644
index 00000000000..7eff19e2e5a
--- /dev/null
+++ b/app/assets/javascripts/groups/components/item_actions.vue
@@ -0,0 +1,93 @@
+<script>
+import { s__ } from '../../locale';
+import tooltip from '../../vue_shared/directives/tooltip';
+import PopupDialog from '../../vue_shared/components/popup_dialog.vue';
+import eventHub from '../event_hub';
+import { COMMON_STR } from '../constants';
+
+export default {
+  components: {
+    PopupDialog,
+  },
+  directives: {
+    tooltip,
+  },
+  props: {
+    parentGroup: {
+      type: Object,
+      required: false,
+      default: () => ({}),
+    },
+    group: {
+      type: Object,
+      required: true,
+    },
+  },
+  data() {
+    return {
+      dialogStatus: false,
+    };
+  },
+  computed: {
+    leaveBtnTitle() {
+      return COMMON_STR.LEAVE_BTN_TITLE;
+    },
+    editBtnTitle() {
+      return COMMON_STR.EDIT_BTN_TITLE;
+    },
+    leaveConfirmationMessage() {
+      return s__(`GroupsTree|Are you sure you want to leave the "${this.group.fullName}" group?`);
+    },
+  },
+  methods: {
+    onLeaveGroup() {
+      this.dialogStatus = true;
+    },
+    leaveGroup(leaveConfirmed) {
+      this.dialogStatus = false;
+      if (leaveConfirmed) {
+        eventHub.$emit('leaveGroup', this.group, this.parentGroup);
+      }
+    },
+  },
+};
+</script>
+
+<template>
+  <div class="controls">
+    <a
+      v-tooltip
+      v-if="group.canEdit"
+      :href="group.editPath"
+      :title="editBtnTitle"
+      :aria-label="editBtnTitle"
+      data-container="body"
+      class="edit-group btn no-expand">
+      <i
+        class="fa fa-cogs"
+        aria-hidden="true"/>
+    </a>
+    <a
+      v-tooltip
+      v-if="group.canLeave"
+      @click.prevent="onLeaveGroup"
+      :href="group.leavePath"
+      :title="leaveBtnTitle"
+      :aria-label="leaveBtnTitle"
+      data-container="body"
+      class="leave-group btn no-expand">
+      <i
+        class="fa fa-sign-out"
+        aria-hidden="true"/>
+    </a>
+    <popup-dialog
+      v-show="dialogStatus"
+      :primary-button-label="__('Leave')"
+      kind="warning"
+      :title="__('Are you sure?')"
+      :text="__('Are you sure you want to leave this group?')"
+      :body="leaveConfirmationMessage"
+      @submit="leaveGroup"
+    />
+  </div>
+</template>
diff --git a/app/assets/javascripts/groups/components/item_caret.vue b/app/assets/javascripts/groups/components/item_caret.vue
new file mode 100644
index 00000000000..959b984816f
--- /dev/null
+++ b/app/assets/javascripts/groups/components/item_caret.vue
@@ -0,0 +1,25 @@
+<script>
+export default {
+  props: {
+    isGroupOpen: {
+      type: Boolean,
+      required: true,
+      default: false,
+    },
+  },
+  computed: {
+    iconClass() {
+      return this.isGroupOpen ? 'fa-caret-down' : 'fa-caret-right';
+    },
+  },
+};
+</script>
+
+<template>
+  <span class="folder-caret">
+    <i
+      :class="iconClass"
+      class="fa"
+      aria-hidden="true"/>
+  </span>
+</template>
diff --git a/app/assets/javascripts/groups/components/item_stats.vue b/app/assets/javascripts/groups/components/item_stats.vue
new file mode 100644
index 00000000000..9f8ac138fc3
--- /dev/null
+++ b/app/assets/javascripts/groups/components/item_stats.vue
@@ -0,0 +1,98 @@
+<script>
+import tooltip from '../../vue_shared/directives/tooltip';
+import { ITEM_TYPE, VISIBILITY_TYPE_ICON, GROUP_VISIBILITY_TYPE, PROJECT_VISIBILITY_TYPE } from '../constants';
+
+export default {
+  directives: {
+    tooltip,
+  },
+  props: {
+    item: {
+      type: Object,
+      required: true,
+    },
+  },
+  computed: {
+    visibilityIcon() {
+      return VISIBILITY_TYPE_ICON[this.item.visibility];
+    },
+    visibilityTooltip() {
+      if (this.item.type === ITEM_TYPE.GROUP) {
+        return GROUP_VISIBILITY_TYPE[this.item.visibility];
+      }
+      return PROJECT_VISIBILITY_TYPE[this.item.visibility];
+    },
+    isProject() {
+      return this.item.type === ITEM_TYPE.PROJECT;
+    },
+    isGroup() {
+      return this.item.type === ITEM_TYPE.GROUP;
+    },
+  },
+};
+</script>
+
+<template>
+  <div class="stats">
+    <span
+      v-tooltip
+      v-if="isGroup"
+      :title="s__('Subgroups')"
+      class="number-subgroups"
+      data-placement="top"
+      data-container="body">
+      <i
+        class="fa fa-folder"
+        aria-hidden="true"
+      />
+      {{item.subgroupCount}}
+    </span>
+    <span
+      v-tooltip
+      v-if="isGroup"
+      :title="s__('Projects')"
+      class="number-projects"
+      data-placement="top"
+      data-container="body">
+      <i
+        class="fa fa-bookmark"
+        aria-hidden="true"
+      />
+      {{item.projectCount}}
+    </span>
+    <span
+      v-tooltip
+      v-if="isGroup"
+      :title="s__('Members')"
+      class="number-users"
+      data-placement="top"
+      data-container="body">
+      <i
+        class="fa fa-users"
+        aria-hidden="true"
+      />
+      {{item.memberCount}}
+    </span>
+    <span
+      v-if="isProject"
+      class="project-stars">
+      <i
+        class="fa fa-star"
+        aria-hidden="true"
+      />
+      {{item.starCount}}
+    </span>
+    <span
+      v-tooltip
+      :title="visibilityTooltip"
+      data-placement="left"
+      data-container="body"
+      class="item-visibility">
+      <i
+        :class="visibilityIcon"
+        class="fa"
+        aria-hidden="true"
+      />
+    </span>
+  </div>
+</template>
diff --git a/app/assets/javascripts/groups/components/item_type_icon.vue b/app/assets/javascripts/groups/components/item_type_icon.vue
new file mode 100644
index 00000000000..c02a8ad6d8c
--- /dev/null
+++ b/app/assets/javascripts/groups/components/item_type_icon.vue
@@ -0,0 +1,34 @@
+<script>
+import { ITEM_TYPE } from '../constants';
+
+export default {
+  props: {
+    itemType: {
+      type: String,
+      required: true,
+    },
+    isGroupOpen: {
+      type: Boolean,
+      required: true,
+      default: false,
+    },
+  },
+  computed: {
+    iconClass() {
+      if (this.itemType === ITEM_TYPE.GROUP) {
+        return this.isGroupOpen ? 'fa-folder-open' : 'fa-folder';
+      }
+      return 'fa-bookmark';
+    },
+  },
+};
+</script>
+
+<template>
+  <span class="item-type-icon">
+    <i
+      :class="iconClass"
+      class="fa"
+      aria-hidden="true"/>
+  </span>
+</template>
diff --git a/app/assets/javascripts/groups/constants.js b/app/assets/javascripts/groups/constants.js
new file mode 100644
index 00000000000..6fde41414b3
--- /dev/null
+++ b/app/assets/javascripts/groups/constants.js
@@ -0,0 +1,35 @@
+import { __, s__ } from '../locale';
+
+export const MAX_CHILDREN_COUNT = 20;
+
+export const COMMON_STR = {
+  FAILURE: __('An error occurred. Please try again.'),
+  LEAVE_FORBIDDEN: s__('GroupsTree|Failed to leave the group. Please make sure you are not the only owner.'),
+  LEAVE_BTN_TITLE: s__('GroupsTree|Leave this group'),
+  EDIT_BTN_TITLE: s__('GroupsTree|Edit group'),
+  GROUP_SEARCH_EMPTY: s__('GroupsTree|Sorry, no groups matched your search'),
+  GROUP_PROJECT_SEARCH_EMPTY: s__('GroupsTree|Sorry, no groups or projects matched your search'),
+};
+
+export const ITEM_TYPE = {
+  PROJECT: 'project',
+  GROUP: 'group',
+};
+
+export const GROUP_VISIBILITY_TYPE = {
+  public: __('Public - The group and any public projects can be viewed without any authentication.'),
+  internal: __('Internal - The group and any internal projects can be viewed by any logged in user.'),
+  private: __('Private - The group and its projects can only be viewed by members.'),
+};
+
+export const PROJECT_VISIBILITY_TYPE = {
+  public: __('Public - The project can be accessed without any authentication.'),
+  internal: __('Internal - The project can be accessed by any logged in user.'),
+  private: __('Private - Project access must be granted explicitly to each user.'),
+};
+
+export const VISIBILITY_TYPE_ICON = {
+  public: 'fa-globe',
+  internal: 'fa-shield',
+  private: 'fa-lock',
+};
diff --git a/app/assets/javascripts/groups/groups_filterable_list.js b/app/assets/javascripts/groups/groups_filterable_list.js
index 83b102764ba..2db233b09da 100644
--- a/app/assets/javascripts/groups/groups_filterable_list.js
+++ b/app/assets/javascripts/groups/groups_filterable_list.js
@@ -3,12 +3,13 @@ import eventHub from './event_hub';
 import { getParameterByName } from '../lib/utils/common_utils';
 
 export default class GroupFilterableList extends FilterableList {
-  constructor({ form, filter, holder, filterEndpoint, pagePath }) {
-    super(form, filter, holder);
+  constructor({ form, filter, holder, filterEndpoint, pagePath, dropdownSel, filterInputField }) {
+    super(form, filter, holder, filterInputField);
     this.form = form;
     this.filterEndpoint = filterEndpoint;
     this.pagePath = pagePath;
-    this.$dropdown = $('.js-group-filter-dropdown-wrap');
+    this.filterInputField = filterInputField;
+    this.$dropdown = $(dropdownSel);
   }
 
   getFilterEndpoint() {
@@ -24,30 +25,34 @@ export default class GroupFilterableList extends FilterableList {
   bindEvents() {
     super.bindEvents();
 
-    this.onFormSubmitWrapper = this.onFormSubmit.bind(this);
     this.onFilterOptionClikWrapper = this.onOptionClick.bind(this);
 
-    this.filterForm.addEventListener('submit', this.onFormSubmitWrapper);
     this.$dropdown.on('click', 'a', this.onFilterOptionClikWrapper);
   }
 
-  onFormSubmit(e) {
-    e.preventDefault();
-
-    const $form = $(this.form);
-    const filterGroupsParam = $form.find('[name="filter_groups"]').val();
+  onFilterInput() {
     const queryData = {};
+    const $form = $(this.form);
+    const archivedParam = getParameterByName('archived', window.location.href);
+    const filterGroupsParam = $form.find(`[name="${this.filterInputField}"]`).val();
 
     if (filterGroupsParam) {
-      queryData.filter_groups = filterGroupsParam;
+      queryData[this.filterInputField] = filterGroupsParam;
+    }
+
+    if (archivedParam) {
+      queryData.archived = archivedParam;
     }
 
     this.filterResults(queryData);
-    this.setDefaultFilterOption();
+
+    if (this.setDefaultFilterOption) {
+      this.setDefaultFilterOption();
+    }
   }
 
   setDefaultFilterOption() {
-    const defaultOption = $.trim(this.$dropdown.find('.dropdown-menu a:first-child').text());
+    const defaultOption = $.trim(this.$dropdown.find('.dropdown-menu li.js-filter-sort-order a').first().text());
     this.$dropdown.find('.dropdown-label').text(defaultOption);
   }
 
@@ -55,23 +60,42 @@ export default class GroupFilterableList extends FilterableList {
     e.preventDefault();
 
     const queryData = {};
-    const sortParam = getParameterByName('sort', e.currentTarget.href);
+
+    // Get type of option selected from dropdown
+    const currentTargetClassList = e.currentTarget.parentElement.classList;
+    const isOptionFilterBySort = currentTargetClassList.contains('js-filter-sort-order');
+    const isOptionFilterByArchivedProjects = currentTargetClassList.contains('js-filter-archived-projects');
+
+    // Get option query param, also preserve currently applied query param
+    const sortParam = getParameterByName('sort', isOptionFilterBySort ? e.currentTarget.href : window.location.href);
+    const archivedParam = getParameterByName('archived', isOptionFilterByArchivedProjects ? e.currentTarget.href : window.location.href);
 
     if (sortParam) {
       queryData.sort = sortParam;
     }
 
+    if (archivedParam) {
+      queryData.archived = archivedParam;
+    }
+
     this.filterResults(queryData);
 
     // Active selected option
-    this.$dropdown.find('.dropdown-label').text($.trim(e.currentTarget.text));
+    if (isOptionFilterBySort) {
+      this.$dropdown.find('.dropdown-label').text($.trim(e.currentTarget.text));
+      this.$dropdown.find('.dropdown-menu li.js-filter-sort-order a').removeClass('is-active');
+    } else if (isOptionFilterByArchivedProjects) {
+      this.$dropdown.find('.dropdown-menu li.js-filter-archived-projects a').removeClass('is-active');
+    }
+
+    $(e.target).addClass('is-active');
 
     // Clear current value on search form
-    this.form.querySelector('[name="filter_groups"]').value = '';
+    this.form.querySelector(`[name="${this.filterInputField}"]`).value = '';
   }
 
   onFilterSuccess(data, xhr, queryData) {
-    super.onFilterSuccess(data, xhr, queryData);
+    const currentPath = this.getPagePath(queryData);
 
     const paginationData = {
       'X-Per-Page': xhr.getResponseHeader('X-Per-Page'),
@@ -82,7 +106,11 @@ export default class GroupFilterableList extends FilterableList {
       'X-Prev-Page': xhr.getResponseHeader('X-Prev-Page'),
     };
 
-    eventHub.$emit('updateGroups', data);
+    window.history.replaceState({
+      page: currentPath,
+    }, document.title, currentPath);
+
+    eventHub.$emit('updateGroups', data, Object.prototype.hasOwnProperty.call(queryData, this.filterInputField));
     eventHub.$emit('updatePagination', paginationData);
   }
 }
diff --git a/app/assets/javascripts/groups/index.js b/app/assets/javascripts/groups/index.js
index 600bae24b52..8b850765a1b 100644
--- a/app/assets/javascripts/groups/index.js
+++ b/app/assets/javascripts/groups/index.js
@@ -1,16 +1,17 @@
 import Vue from 'vue';
-import Flash from '../flash';
+import Translate from '../vue_shared/translate';
 import GroupFilterableList from './groups_filterable_list';
-import GroupsComponent from './components/groups.vue';
-import GroupFolder from './components/group_folder.vue';
-import GroupItem from './components/group_item.vue';
-import GroupsStore from './stores/groups_store';
-import GroupsService from './services/groups_service';
-import eventHub from './event_hub';
-import { getParameterByName } from '../lib/utils/common_utils';
+import GroupsStore from './store/groups_store';
+import GroupsService from './service/groups_service';
+
+import groupsApp from './components/app.vue';
+import groupFolderComponent from './components/group_folder.vue';
+import groupItemComponent from './components/group_item.vue';
+
+Vue.use(Translate);
 
 document.addEventListener('DOMContentLoaded', () => {
-  const el = document.getElementById('dashboard-group-app');
+  const el = document.getElementById('js-groups-tree');
 
   // Don't do anything if element doesn't exist (No groups)
   // This is for when the user enters directly to the page via URL
@@ -18,176 +19,56 @@ document.addEventListener('DOMContentLoaded', () => {
     return;
   }
 
-  Vue.component('groups-component', GroupsComponent);
-  Vue.component('group-folder', GroupFolder);
-  Vue.component('group-item', GroupItem);
+  Vue.component('group-folder', groupFolderComponent);
+  Vue.component('group-item', groupItemComponent);
 
   // eslint-disable-next-line no-new
   new Vue({
     el,
+    components: {
+      groupsApp,
+    },
     data() {
-      this.store = new GroupsStore();
-      this.service = new GroupsService(el.dataset.endpoint);
+      const dataset = this.$options.el.dataset;
+      const hideProjects = dataset.hideProjects === 'true';
+      const store = new GroupsStore(hideProjects);
+      const service = new GroupsService(dataset.endpoint);
 
       return {
-        store: this.store,
-        isLoading: true,
-        state: this.store.state,
+        store,
+        service,
+        hideProjects,
         loading: true,
       };
     },
-    computed: {
-      isEmpty() {
-        return Object.keys(this.state.groups).length === 0;
-      },
-    },
-    methods: {
-      fetchGroups(parentGroup) {
-        let parentId = null;
-        let getGroups = null;
-        let page = null;
-        let sort = null;
-        let pageParam = null;
-        let sortParam = null;
-        let filterGroups = null;
-        let filterGroupsParam = null;
-
-        if (parentGroup) {
-          parentId = parentGroup.id;
-        } else {
-          this.isLoading = true;
-        }
-
-        pageParam = getParameterByName('page');
-        if (pageParam) {
-          page = pageParam;
-        }
-
-        filterGroupsParam = getParameterByName('filter_groups');
-        if (filterGroupsParam) {
-          filterGroups = filterGroupsParam;
-        }
-
-        sortParam = getParameterByName('sort');
-        if (sortParam) {
-          sort = sortParam;
-        }
-
-        getGroups = this.service.getGroups(parentId, page, filterGroups, sort);
-        getGroups
-          .then(response => response.json())
-          .then((response) => {
-            this.isLoading = false;
-
-            this.updateGroups(response, parentGroup);
-          })
-          .catch(this.handleErrorResponse);
-
-        return getGroups;
-      },
-      fetchPage(page, filterGroups, sort) {
-        this.isLoading = true;
-
-        return this.service
-          .getGroups(null, page, filterGroups, sort)
-          .then((response) => {
-            this.isLoading = false;
-            $.scrollTo(0);
-
-            const currentPath = gl.utils.mergeUrlParams({ page }, window.location.href);
-            window.history.replaceState({
-              page: currentPath,
-            }, document.title, currentPath);
-
-            return response.json().then((data) => {
-              this.updateGroups(data);
-              this.updatePagination(response.headers);
-            });
-          })
-          .catch(this.handleErrorResponse);
-      },
-      toggleSubGroups(parentGroup = null) {
-        if (!parentGroup.isOpen) {
-          this.store.resetGroups(parentGroup);
-          this.fetchGroups(parentGroup);
-        }
-
-        this.store.toggleSubGroups(parentGroup);
-      },
-      leaveGroup(group, collection) {
-        this.service.leaveGroup(group.leavePath)
-          .then(resp => resp.json())
-          .then((response) => {
-            $.scrollTo(0);
-
-            this.store.removeGroup(group, collection);
-
-            // eslint-disable-next-line no-new
-            new Flash(response.notice, 'notice');
-          })
-          .catch((error) => {
-            let message = 'An error occurred. Please try again.';
-
-            if (error.status === 403) {
-              message = 'Failed to leave the group. Please make sure you are not the only owner';
-            }
-
-            // eslint-disable-next-line no-new
-            new Flash(message);
-          });
-      },
-      updateGroups(groups, parentGroup) {
-        this.store.setGroups(groups, parentGroup);
-      },
-      updatePagination(headers) {
-        this.store.storePagination(headers);
-      },
-      handleErrorResponse() {
-        this.isLoading = false;
-        $.scrollTo(0);
-
-        // eslint-disable-next-line no-new
-        new Flash('An error occurred. Please try again.');
-      },
-    },
-    created() {
-      eventHub.$on('fetchPage', this.fetchPage);
-      eventHub.$on('toggleSubGroups', this.toggleSubGroups);
-      eventHub.$on('leaveGroup', this.leaveGroup);
-      eventHub.$on('updateGroups', this.updateGroups);
-      eventHub.$on('updatePagination', this.updatePagination);
-    },
     beforeMount() {
+      const dataset = this.$options.el.dataset;
       let groupFilterList = null;
-      const form = document.querySelector('form#group-filter-form');
-      const filter = document.querySelector('.js-groups-list-filter');
-      const holder = document.querySelector('.js-groups-list-holder');
+      const form = document.querySelector(dataset.formSel);
+      const filter = document.querySelector(dataset.filterSel);
+      const holder = document.querySelector(dataset.holderSel);
 
       const opts = {
         form,
         filter,
         holder,
-        filterEndpoint: el.dataset.endpoint,
-        pagePath: el.dataset.path,
+        filterEndpoint: dataset.endpoint,
+        pagePath: dataset.path,
+        dropdownSel: dataset.dropdownSel,
+        filterInputField: 'filter',
       };
 
       groupFilterList = new GroupFilterableList(opts);
       groupFilterList.initSearch();
     },
-    mounted() {
-      this.fetchGroups()
-        .then((response) => {
-          this.updatePagination(response.headers);
-          this.isLoading = false;
-        })
-        .catch(this.handleErrorResponse);
-    },
-    beforeDestroy() {
-      eventHub.$off('fetchPage', this.fetchPage);
-      eventHub.$off('toggleSubGroups', this.toggleSubGroups);
-      eventHub.$off('leaveGroup', this.leaveGroup);
-      eventHub.$off('updateGroups', this.updateGroups);
-      eventHub.$off('updatePagination', this.updatePagination);
+    render(createElement) {
+      return createElement('groups-app', {
+        props: {
+          store: this.store,
+          service: this.service,
+          hideProjects: this.hideProjects,
+        },
+      });
     },
   });
 });
diff --git a/app/assets/javascripts/groups/new_group_child.js b/app/assets/javascripts/groups/new_group_child.js
new file mode 100644
index 00000000000..8e273579aae
--- /dev/null
+++ b/app/assets/javascripts/groups/new_group_child.js
@@ -0,0 +1,62 @@
+import DropLab from '../droplab/drop_lab';
+import ISetter from '../droplab/plugins/input_setter';
+
+const InputSetter = Object.assign({}, ISetter);
+
+const NEW_PROJECT = 'new-project';
+const NEW_SUBGROUP = 'new-subgroup';
+
+export default class NewGroupChild {
+  constructor(buttonWrapper) {
+    this.buttonWrapper = buttonWrapper;
+    this.newGroupChildButton = this.buttonWrapper.querySelector('.js-new-group-child');
+    this.dropdownToggle = this.buttonWrapper.querySelector('.js-dropdown-toggle');
+    this.dropdownList = this.buttonWrapper.querySelector('.dropdown-menu');
+
+    this.newGroupPath = this.buttonWrapper.dataset.projectPath;
+    this.subgroupPath = this.buttonWrapper.dataset.subgroupPath;
+
+    this.init();
+  }
+
+  init() {
+    this.initDroplab();
+    this.bindEvents();
+  }
+
+  initDroplab() {
+    this.droplab = new DropLab();
+    this.droplab.init(
+      this.dropdownToggle,
+      this.dropdownList,
+      [InputSetter],
+      this.getDroplabConfig(),
+    );
+  }
+
+  getDroplabConfig() {
+    return {
+      InputSetter: [{
+        input: this.newGroupChildButton,
+        valueAttribute: 'data-value',
+        inputAttribute: 'data-action',
+      }, {
+        input: this.newGroupChildButton,
+        valueAttribute: 'data-text',
+      }],
+    };
+  }
+
+  bindEvents() {
+    this.newGroupChildButton
+      .addEventListener('click', this.onClickNewGroupChildButton.bind(this));
+  }
+
+  onClickNewGroupChildButton(e) {
+    if (e.target.dataset.action === NEW_PROJECT) {
+      gl.utils.visitUrl(this.newGroupPath);
+    } else if (e.target.dataset.action === NEW_SUBGROUP) {
+      gl.utils.visitUrl(this.subgroupPath);
+    }
+  }
+}
diff --git a/app/assets/javascripts/groups/services/groups_service.js b/app/assets/javascripts/groups/service/groups_service.js
index 97e02fcb76d..639410384c2 100644
--- a/app/assets/javascripts/groups/services/groups_service.js
+++ b/app/assets/javascripts/groups/service/groups_service.js
@@ -8,7 +8,7 @@ export default class GroupsService {
     this.groups = Vue.resource(endpoint);
   }
 
-  getGroups(parentId, page, filterGroups, sort) {
+  getGroups(parentId, page, filterGroups, sort, archived) {
     const data = {};
 
     if (parentId) {
@@ -20,12 +20,16 @@ export default class GroupsService {
       }
 
       if (filterGroups) {
-        data.filter_groups = filterGroups;
+        data.filter = filterGroups;
       }
 
       if (sort) {
         data.sort = sort;
       }
+
+      if (archived) {
+        data.archived = archived;
+      }
     }
 
     return this.groups.get(data);
diff --git a/app/assets/javascripts/groups/store/groups_store.js b/app/assets/javascripts/groups/store/groups_store.js
new file mode 100644
index 00000000000..a1689f4c5cc
--- /dev/null
+++ b/app/assets/javascripts/groups/store/groups_store.js
@@ -0,0 +1,105 @@
+import { normalizeHeaders, parseIntPagination } from '../../lib/utils/common_utils';
+
+export default class GroupsStore {
+  constructor(hideProjects) {
+    this.state = {};
+    this.state.groups = [];
+    this.state.pageInfo = {};
+    this.hideProjects = hideProjects;
+  }
+
+  setGroups(rawGroups) {
+    if (rawGroups && rawGroups.length) {
+      this.state.groups = rawGroups.map(rawGroup => this.formatGroupItem(rawGroup));
+    } else {
+      this.state.groups = [];
+    }
+  }
+
+  setSearchedGroups(rawGroups) {
+    const formatGroups = groups => groups.map((group) => {
+      const formattedGroup = this.formatGroupItem(group);
+      if (formattedGroup.children && formattedGroup.children.length) {
+        formattedGroup.children = formatGroups(formattedGroup.children);
+      }
+      return formattedGroup;
+    });
+
+    if (rawGroups && rawGroups.length) {
+      this.state.groups = formatGroups(rawGroups);
+    } else {
+      this.state.groups = [];
+    }
+  }
+
+  setGroupChildren(parentGroup, children) {
+    const updatedParentGroup = parentGroup;
+    updatedParentGroup.children = children.map(rawChild => this.formatGroupItem(rawChild));
+    updatedParentGroup.isOpen = true;
+    updatedParentGroup.isChildrenLoading = false;
+  }
+
+  getGroups() {
+    return this.state.groups;
+  }
+
+  setPaginationInfo(pagination = {}) {
+    let paginationInfo;
+
+    if (Object.keys(pagination).length) {
+      const normalizedHeaders = normalizeHeaders(pagination);
+      paginationInfo = parseIntPagination(normalizedHeaders);
+    } else {
+      paginationInfo = pagination;
+    }
+
+    this.state.pageInfo = paginationInfo;
+  }
+
+  getPaginationInfo() {
+    return this.state.pageInfo;
+  }
+
+  formatGroupItem(rawGroupItem) {
+    const groupChildren = rawGroupItem.children || [];
+    const groupIsOpen = (groupChildren.length > 0) || false;
+    const childrenCount = this.hideProjects ?
+      rawGroupItem.subgroup_count :
+      rawGroupItem.children_count;
+
+    return {
+      id: rawGroupItem.id,
+      name: rawGroupItem.name,
+      fullName: rawGroupItem.full_name,
+      description: rawGroupItem.description,
+      visibility: rawGroupItem.visibility,
+      avatarUrl: rawGroupItem.avatar_url,
+      relativePath: rawGroupItem.relative_path,
+      editPath: rawGroupItem.edit_path,
+      leavePath: rawGroupItem.leave_path,
+      canEdit: rawGroupItem.can_edit,
+      canLeave: rawGroupItem.can_leave,
+      type: rawGroupItem.type,
+      permission: rawGroupItem.permission,
+      children: groupChildren,
+      isOpen: groupIsOpen,
+      isChildrenLoading: false,
+      isBeingRemoved: false,
+      parentId: rawGroupItem.parent_id,
+      childrenCount,
+      projectCount: rawGroupItem.project_count,
+      subgroupCount: rawGroupItem.subgroup_count,
+      memberCount: rawGroupItem.number_users_with_delimiter,
+      starCount: rawGroupItem.star_count,
+    };
+  }
+
+  removeGroup(group, parentGroup) {
+    const updatedParentGroup = parentGroup;
+    if (updatedParentGroup.children && updatedParentGroup.children.length) {
+      updatedParentGroup.children = parentGroup.children.filter(child => group.id !== child.id);
+    } else {
+      this.state.groups = this.state.groups.filter(child => group.id !== child.id);
+    }
+  }
+}
diff --git a/app/assets/javascripts/groups/stores/groups_store.js b/app/assets/javascripts/groups/stores/groups_store.js
deleted file mode 100644
index f59ec677603..00000000000
--- a/app/assets/javascripts/groups/stores/groups_store.js
+++ /dev/null
@@ -1,167 +0,0 @@
-import Vue from 'vue';
-import { parseIntPagination, normalizeHeaders } from '../../lib/utils/common_utils';
-
-export default class GroupsStore {
-  constructor() {
-    this.state = {};
-    this.state.groups = {};
-    this.state.pageInfo = {};
-  }
-
-  setGroups(rawGroups, parent) {
-    const parentGroup = parent;
-    const tree = this.buildTree(rawGroups, parentGroup);
-
-    if (parentGroup) {
-      parentGroup.subGroups = tree;
-    } else {
-      this.state.groups = tree;
-    }
-
-    return tree;
-  }
-
-  // eslint-disable-next-line class-methods-use-this
-  resetGroups(parent) {
-    const parentGroup = parent;
-    parentGroup.subGroups = {};
-  }
-
-  storePagination(pagination = {}) {
-    let paginationInfo;
-
-    if (Object.keys(pagination).length) {
-      const normalizedHeaders = normalizeHeaders(pagination);
-      paginationInfo = parseIntPagination(normalizedHeaders);
-    } else {
-      paginationInfo = pagination;
-    }
-
-    this.state.pageInfo = paginationInfo;
-  }
-
-  buildTree(rawGroups, parentGroup) {
-    const groups = this.decorateGroups(rawGroups);
-    const tree = {};
-    const mappedGroups = {};
-    const orphans = [];
-
-    // Map groups to an object
-    groups.map((group) => {
-      mappedGroups[`id${group.id}`] = group;
-      mappedGroups[`id${group.id}`].subGroups = {};
-      return group;
-    });
-
-    Object.keys(mappedGroups).map((key) => {
-      const currentGroup = mappedGroups[key];
-      if (currentGroup.parentId) {
-        // If the group is not at the root level, add it to its parent array of subGroups.
-        const findParentGroup = mappedGroups[`id${currentGroup.parentId}`];
-        if (findParentGroup) {
-          mappedGroups[`id${currentGroup.parentId}`].subGroups[`id${currentGroup.id}`] = currentGroup;
-          mappedGroups[`id${currentGroup.parentId}`].isOpen = true; // Expand group if it has subgroups
-        } else if (parentGroup && parentGroup.id === currentGroup.parentId) {
-          tree[`id${currentGroup.id}`] = currentGroup;
-        } else {
-          // No parent found. We save it for later processing
-          orphans.push(currentGroup);
-
-          // Add to tree to preserve original order
-          tree[`id${currentGroup.id}`] = currentGroup;
-        }
-      } else {
-        // If the group is at the top level, add it to first level elements array.
-        tree[`id${currentGroup.id}`] = currentGroup;
-      }
-
-      return key;
-    });
-
-    if (orphans.length) {
-      orphans.map((orphan) => {
-        let found = false;
-        const currentOrphan = orphan;
-
-        Object.keys(tree).map((key) => {
-          const group = tree[key];
-
-          if (
-           group &&
-           currentOrphan.fullPath.lastIndexOf(group.fullPath) === 0 &&
-           // Make sure the currently selected orphan is not the same as the group
-           // we are checking here otherwise it will end up in an infinite loop
-           currentOrphan.id !== group.id
-           ) {
-            group.subGroups[currentOrphan.id] = currentOrphan;
-            group.isOpen = true;
-            currentOrphan.isOrphan = true;
-            found = true;
-
-            // Delete if group was put at the top level. If not the group will be displayed twice.
-            if (tree[`id${currentOrphan.id}`]) {
-              delete tree[`id${currentOrphan.id}`];
-            }
-          }
-
-          return key;
-        });
-
-        if (!found) {
-          currentOrphan.isOrphan = true;
-
-          tree[`id${currentOrphan.id}`] = currentOrphan;
-        }
-
-        return orphan;
-      });
-    }
-
-    return tree;
-  }
-
-  decorateGroups(rawGroups) {
-    this.groups = rawGroups.map(this.decorateGroup);
-    return this.groups;
-  }
-
-  // eslint-disable-next-line class-methods-use-this
-  decorateGroup(rawGroup) {
-    return {
-      id: rawGroup.id,
-      fullName: rawGroup.full_name,
-      fullPath: rawGroup.full_path,
-      avatarUrl: rawGroup.avatar_url,
-      name: rawGroup.name,
-      hasSubgroups: rawGroup.has_subgroups,
-      canEdit: rawGroup.can_edit,
-      description: rawGroup.description,
-      webUrl: rawGroup.web_url,
-      groupPath: rawGroup.group_path,
-      parentId: rawGroup.parent_id,
-      visibility: rawGroup.visibility,
-      leavePath: rawGroup.leave_path,
-      editPath: rawGroup.edit_path,
-      isOpen: false,
-      isOrphan: false,
-      numberProjects: rawGroup.number_projects_with_delimiter,
-      numberUsers: rawGroup.number_users_with_delimiter,
-      permissions: {
-        humanGroupAccess: rawGroup.permissions.human_group_access,
-      },
-      subGroups: {},
-    };
-  }
-
-  // eslint-disable-next-line class-methods-use-this
-  removeGroup(group, collection) {
-    Vue.delete(collection, `id${group.id}`);
-  }
-
-  // eslint-disable-next-line class-methods-use-this
-  toggleSubGroups(toggleGroup) {
-    const group = toggleGroup;
-    group.isOpen = !group.isOpen;
-    return group;
-  }
-}
diff --git a/app/assets/javascripts/init_issuable_sidebar.js b/app/assets/javascripts/init_issuable_sidebar.js
index 29e3d2ea94e..32a1a269f9a 100644
--- a/app/assets/javascripts/init_issuable_sidebar.js
+++ b/app/assets/javascripts/init_issuable_sidebar.js
@@ -4,6 +4,8 @@
 /* global IssuableContext */
 /* global Sidebar */
 
+import DueDateSelectors from './due_date_select';
+
 export default () => {
   const sidebarOptions = JSON.parse(document.querySelector('.js-sidebar-options').innerHTML);
 
@@ -13,6 +15,6 @@ export default () => {
   new LabelsSelect();
   new IssuableContext(sidebarOptions.currentUser);
   gl.Subscription.bindAll('.subscription');
-  new gl.DueDateSelectors();
+  new DueDateSelectors();
   window.sidebar = new Sidebar();
 };
diff --git a/app/assets/javascripts/issuable_form.js b/app/assets/javascripts/issuable_form.js
index 470c39c6f76..cd2562bc6a9 100644
--- a/app/assets/javascripts/issuable_form.js
+++ b/app/assets/javascripts/issuable_form.js
@@ -1,12 +1,12 @@
 /* eslint-disable func-names, space-before-function-paren, no-var, prefer-rest-params, wrap-iife, no-use-before-define, no-useless-escape, no-new, quotes, object-shorthand, no-unused-vars, comma-dangle, no-alert, consistent-return, no-else-return, prefer-template, one-var, one-var-declaration-per-line, curly, max-len */
 /* global GitLab */
 /* global Autosave */
-/* global dateFormat */
 
 import Pikaday from 'pikaday';
 import UsersSelect from './users_select';
 import GfmAutoComplete from './gfm_auto_complete';
 import ZenMode from './zen_mode';
+import { parsePikadayDate, pikadayToString } from './lib/utils/datefix';
 
 (function() {
   this.IssuableForm = (function() {
@@ -38,11 +38,13 @@ import ZenMode from './zen_mode';
           theme: 'gitlab-theme animate-picker',
           format: 'yyyy-mm-dd',
           container: $issuableDueDate.parent().get(0),
+          parse: dateString => parsePikadayDate(dateString),
+          toString: date => pikadayToString(date),
           onSelect: function(dateText) {
-            $issuableDueDate.val(dateFormat(new Date(dateText), 'yyyy-mm-dd'));
+            $issuableDueDate.val(calendar.toString(dateText));
           }
         });
-        calendar.setDate(new Date($issuableDueDate.val()));
+        calendar.setDate(parsePikadayDate($issuableDueDate.val()));
       }
     }
 
diff --git a/app/assets/javascripts/issue_show/components/app.vue b/app/assets/javascripts/issue_show/components/app.vue
index eecb56cb185..d1aa83ea57f 100644
--- a/app/assets/javascripts/issue_show/components/app.vue
+++ b/app/assets/javascripts/issue_show/components/app.vue
@@ -24,6 +24,11 @@ export default {
       required: true,
       type: Boolean,
     },
+    showInlineEditButton: {
+      type: Boolean,
+      required: false,
+      default: false,
+    },
     issuableRef: {
       type: String,
       required: true,
@@ -222,20 +227,25 @@ export default {
     <div v-else>
       <title-component
         :issuable-ref="issuableRef"
+        :can-update="canUpdate"
         :title-html="state.titleHtml"
-        :title-text="state.titleText" />
+        :title-text="state.titleText"
+        :show-inline-edit-button="showInlineEditButton"
+      />
       <description-component
         v-if="state.descriptionHtml"
         :can-update="canUpdate"
         :description-html="state.descriptionHtml"
         :description-text="state.descriptionText"
         :updated-at="state.updatedAt"
-        :task-status="state.taskStatus" />
+        :task-status="state.taskStatus"
+      />
       <edited-component
         v-if="hasUpdated"
         :updated-at="state.updatedAt"
         :updated-by-name="state.updatedByName"
-        :updated-by-path="state.updatedByPath" />
+        :updated-by-path="state.updatedByPath"
+      />
     </div>
   </div>
 </template>
diff --git a/app/assets/javascripts/issue_show/components/fields/title.vue b/app/assets/javascripts/issue_show/components/fields/title.vue
index 83af8e1e245..c3abb9fd9d5 100644
--- a/app/assets/javascripts/issue_show/components/fields/title.vue
+++ b/app/assets/javascripts/issue_show/components/fields/title.vue
@@ -16,15 +16,15 @@
   <fieldset>
     <label
       class="sr-only"
-      for="issue-title">
+      for="issuable-title">
       Title
     </label>
     <input
-      id="issue-title"
+      id="issuable-title"
       class="form-control"
       type="text"
-      placeholder="Issue title"
-      aria-label="Issue title"
+      placeholder="Title"
+      aria-label="Title"
       v-model="formState.title"
       @keydown.meta.enter="updateIssuable"
       @keydown.ctrl.enter="updateIssuable" />
diff --git a/app/assets/javascripts/issue_show/components/title.vue b/app/assets/javascripts/issue_show/components/title.vue
index a9dabd4cff1..00002709ac6 100644
--- a/app/assets/javascripts/issue_show/components/title.vue
+++ b/app/assets/javascripts/issue_show/components/title.vue
@@ -1,5 +1,8 @@
 <script>
   import animateMixin from '../mixins/animate';
+  import eventHub from '../event_hub';
+  import tooltip from '../../vue_shared/directives/tooltip';
+  import { spriteIcon } from '../../lib/utils/common_utils';
 
   export default {
     mixins: [animateMixin],
@@ -15,6 +18,11 @@
         type: String,
         required: true,
       },
+      canUpdate: {
+        required: false,
+        type: Boolean,
+        default: false,
+      },
       titleHtml: {
         type: String,
         required: true,
@@ -23,6 +31,14 @@
         type: String,
         required: true,
       },
+      showInlineEditButton: {
+        type: Boolean,
+        required: false,
+        default: false,
+      },
+    },
+    directives: {
+      tooltip,
     },
     watch: {
       titleHtml() {
@@ -30,24 +46,46 @@
         this.animateChange();
       },
     },
+    computed: {
+      pencilIcon() {
+        return spriteIcon('pencil', 'link-highlight');
+      },
+    },
     methods: {
       setPageTitle() {
         const currentPageTitleScope = this.titleEl.innerText.split('·');
         currentPageTitleScope[0] = `${this.titleText} (${this.issuableRef}) `;
         this.titleEl.textContent = currentPageTitleScope.join('·');
       },
+      edit() {
+        eventHub.$emit('open.form');
+      },
     },
   };
 </script>
 
 <template>
-  <h2
-    class="title"
-    :class="{
-      'issue-realtime-pre-pulse': preAnimation,
-      'issue-realtime-trigger-pulse': pulseAnimation
-    }"
-    v-html="titleHtml"
-  >
-  </h2>
+  <div class="title-container">
+    <h2
+      class="title"
+      :class="{
+        'issue-realtime-pre-pulse': preAnimation,
+        'issue-realtime-trigger-pulse': pulseAnimation
+      }"
+      v-html="titleHtml"
+    >
+    </h2>
+    <button
+      v-tooltip
+      v-if="showInlineEditButton && canUpdate"
+      type="button"
+      class="btn-blank btn-edit note-action-button"
+      v-html="pencilIcon"
+      title="Edit title and description"
+      data-placement="bottom"
+      data-container="body"
+      @click="edit"
+      >
+    </button>
+  </div>
 </template>
diff --git a/app/assets/javascripts/jobs/components/header.vue b/app/assets/javascripts/jobs/components/header.vue
index 3f6f40d47ba..6d671845f8e 100644
--- a/app/assets/javascripts/jobs/components/header.vue
+++ b/app/assets/javascripts/jobs/components/header.vue
@@ -43,16 +43,6 @@
             type: 'link',
           });
         }
-
-        if (this.job.retry_path) {
-          actions.push({
-            label: 'Retry',
-            path: this.job.retry_path,
-            cssClass: 'js-retry-button btn btn-inverted-secondary visible-md-block visible-lg-block',
-            type: 'ujs-link',
-          });
-        }
-
         return actions;
       },
     },
diff --git a/app/assets/javascripts/lib/utils/common_utils.js b/app/assets/javascripts/lib/utils/common_utils.js
index 9f05cf16967..07899777a1e 100644
--- a/app/assets/javascripts/lib/utils/common_utils.js
+++ b/app/assets/javascripts/lib/utils/common_utils.js
@@ -403,7 +403,11 @@ export const setCiStatusFavicon = (pageUrl) => {
   });
 };
 
-export const spriteIcon = icon => `<svg><use xlink:href="${gon.sprite_icons}#${icon}" /></svg>`;
+export const spriteIcon = (icon, className = '') => {
+  const classAttribute = className.length > 0 ? `class="${className}"` : '';
+
+  return `<svg ${classAttribute}><use xlink:href="${gon.sprite_icons}#${icon}" /></svg>`;
+};
 
 export const imagePath = imgUrl => `${gon.asset_host || ''}${gon.relative_url_root || ''}/assets/${imgUrl}`;
 
diff --git a/app/assets/javascripts/lib/utils/datefix.js b/app/assets/javascripts/lib/utils/datefix.js
index 990dc3f6d1a..e98c9068367 100644
--- a/app/assets/javascripts/lib/utils/datefix.js
+++ b/app/assets/javascripts/lib/utils/datefix.js
@@ -1,8 +1,29 @@
-const DateFix = {
-  dashedFix(val) {
-    const [y, m, d] = val.split('-');
-    return new Date(y, m - 1, d);
-  },
+
+export const pad = (val, len = 2) => (`0${val}`).slice(-len);
+
+/**
+ * Formats dates in Pickaday
+ * @param {String} dateString Date in yyyy-mm-dd format
+ * @return {Date} UTC format
+ */
+export const parsePikadayDate = (dateString) => {
+  const parts = dateString.split('-');
+  const year = parseInt(parts[0], 10);
+  const month = parseInt(parts[1] - 1, 10);
+  const day = parseInt(parts[2], 10);
+
+  return new Date(year, month, day);
 };
 
-export default DateFix;
+/**
+ * Used `onSelect` method in pickaday
+ * @param {Date} date UTC format
+ * @return {String} Date formated in yyyy-mm-dd
+ */
+export const pikadayToString = (date) => {
+  const day = pad(date.getDate());
+  const month = pad(date.getMonth() + 1);
+  const year = date.getFullYear();
+
+  return `${year}-${month}-${day}`;
+};
diff --git a/app/assets/javascripts/lib/utils/url_utility.js b/app/assets/javascripts/lib/utils/url_utility.js
index 78c7a094127..1aa63216baf 100644
--- a/app/assets/javascripts/lib/utils/url_utility.js
+++ b/app/assets/javascripts/lib/utils/url_utility.js
@@ -85,7 +85,7 @@ w.gl.utils.getLocationHash = function(url) {
   return hashIndex === -1 ? null : url.substring(hashIndex + 1);
 };
 
-w.gl.utils.refreshCurrentPage = () => gl.utils.visitUrl(document.location.href);
+w.gl.utils.refreshCurrentPage = () => gl.utils.visitUrl(window.location.href);
 
 // eslint-disable-next-line import/prefer-default-export
 export function visitUrl(url, external = false) {
@@ -96,7 +96,7 @@ export function visitUrl(url, external = false) {
     otherWindow.opener = null;
     otherWindow.location = url;
   } else {
-    document.location.href = url;
+    window.location.href = url;
   }
 }
 
diff --git a/app/assets/javascripts/main.js b/app/assets/javascripts/main.js
index 8d7608ce0f4..4cf07e99161 100644
--- a/app/assets/javascripts/main.js
+++ b/app/assets/javascripts/main.js
@@ -21,15 +21,6 @@ window._ = _;
 window.Dropzone = Dropzone;
 window.Sortable = Sortable;
 
-// shortcuts
-import './shortcuts';
-import './shortcuts_blob';
-import './shortcuts_dashboard_navigation';
-import './shortcuts_navigation';
-import './shortcuts_find_file';
-import './shortcuts_issuable';
-import './shortcuts_network';
-
 // templates
 import './templates/issuable_template_selector';
 import './templates/issuable_template_selectors';
@@ -53,7 +44,6 @@ import './aside';
 import './autosave';
 import loadAwardsHandler from './awards_handler';
 import bp from './breakpoints';
-import './broadcast_message';
 import './commits';
 import './compare';
 import './compare_autocomplete';
@@ -61,10 +51,8 @@ import './confirm_danger_modal';
 import './copy_as_gfm';
 import './copy_to_clipboard';
 import './diff';
-import './dropzone_input';
-import './due_date_select';
 import './files_comment_button';
-import Flash from './flash';
+import Flash, { removeFlashClickListener } from './flash';
 import './gl_dropdown';
 import './gl_field_error';
 import './gl_field_errors';
@@ -84,8 +72,6 @@ import './layout_nav';
 import LazyLoader from './lazy_loader';
 import './line_highlighter';
 import './logo';
-import './member_expiration_date';
-import './members';
 import './merge_request';
 import './merge_request_tabs';
 import './milestone';
@@ -339,4 +325,10 @@ $(function () {
     event.preventDefault();
     gl.utils.visitUrl(`${action}${$(this).serialize()}`);
   });
+
+  const flashContainer = document.querySelector('.flash-container');
+
+  if (flashContainer && flashContainer.children.length) {
+    removeFlashClickListener(flashContainer.children[0]);
+  }
 });
diff --git a/app/assets/javascripts/member_expiration_date.js b/app/assets/javascripts/member_expiration_date.js
index cc9016e74da..84e70e35bad 100644
--- a/app/assets/javascripts/member_expiration_date.js
+++ b/app/assets/javascripts/member_expiration_date.js
@@ -1,55 +1,53 @@
-/* global dateFormat */
-
 import Pikaday from 'pikaday';
-
-(() => {
-  // Add datepickers to all `js-access-expiration-date` elements. If those elements are
-  // children of an element with the `clearable-input` class, and have a sibling
-  // `js-clear-input` element, then show that element when there is a value in the
-  // datepicker, and make clicking on that element clear the field.
-  //
-  window.gl = window.gl || {};
-  gl.MemberExpirationDate = (selector = '.js-access-expiration-date') => {
-    function toggleClearInput() {
-      $(this).closest('.clearable-input').toggleClass('has-value', $(this).val() !== '');
-    }
-    const inputs = $(selector);
-
-    inputs.each((i, el) => {
-      const $input = $(el);
-
-      const calendar = new Pikaday({
-        field: $input.get(0),
-        theme: 'gitlab-theme animate-picker',
-        format: 'yyyy-mm-dd',
-        minDate: new Date(),
-        container: $input.parent().get(0),
-        onSelect(dateText) {
-          $input.val(dateFormat(new Date(dateText), 'yyyy-mm-dd'));
-
-          $input.trigger('change');
-
-          toggleClearInput.call($input);
-        },
-      });
-
-      calendar.setDate(new Date($input.val()));
-      $input.data('pikaday', calendar);
+import { parsePikadayDate, pikadayToString } from './lib/utils/datefix';
+
+// Add datepickers to all `js-access-expiration-date` elements. If those elements are
+// children of an element with the `clearable-input` class, and have a sibling
+// `js-clear-input` element, then show that element when there is a value in the
+// datepicker, and make clicking on that element clear the field.
+//
+export default function memberExpirationDate(selector = '.js-access-expiration-date') {
+  function toggleClearInput() {
+    $(this).closest('.clearable-input').toggleClass('has-value', $(this).val() !== '');
+  }
+  const inputs = $(selector);
+
+  inputs.each((i, el) => {
+    const $input = $(el);
+
+    const calendar = new Pikaday({
+      field: $input.get(0),
+      theme: 'gitlab-theme animate-picker',
+      format: 'yyyy-mm-dd',
+      minDate: new Date(),
+      container: $input.parent().get(0),
+      parse: dateString => parsePikadayDate(dateString),
+      toString: date => pikadayToString(date),
+      onSelect(dateText) {
+        $input.val(calendar.toString(dateText));
+
+        $input.trigger('change');
+
+        toggleClearInput.call($input);
+      },
     });
 
-    inputs.next('.js-clear-input').on('click', function clicked(event) {
-      event.preventDefault();
+    calendar.setDate(parsePikadayDate($input.val()));
+    $input.data('pikaday', calendar);
+  });
 
-      const input = $(this).closest('.clearable-input').find(selector);
-      const calendar = input.data('pikaday');
+  inputs.next('.js-clear-input').on('click', function clicked(event) {
+    event.preventDefault();
 
-      calendar.setDate(null);
-      input.trigger('change');
-      toggleClearInput.call(input);
-    });
+    const input = $(this).closest('.clearable-input').find(selector);
+    const calendar = input.data('pikaday');
+
+    calendar.setDate(null);
+    input.trigger('change');
+    toggleClearInput.call(input);
+  });
 
-    inputs.on('blur', toggleClearInput);
+  inputs.on('blur', toggleClearInput);
 
-    inputs.each(toggleClearInput);
-  };
-}).call(window);
+  inputs.each(toggleClearInput);
+}
diff --git a/app/assets/javascripts/members.js b/app/assets/javascripts/members.js
index 8291b8c4a70..6264750a4fb 100644
--- a/app/assets/javascripts/members.js
+++ b/app/assets/javascripts/members.js
@@ -1,81 +1,74 @@
-/* eslint-disable class-methods-use-this */
-(() => {
-  window.gl = window.gl || {};
-
-  class Members {
-    constructor() {
-      this.addListeners();
-      this.initGLDropdown();
-    }
+export default class Members {
+  constructor() {
+    this.addListeners();
+    this.initGLDropdown();
+  }
 
-    addListeners() {
-      $('.project_member, .group_member').off('ajax:success').on('ajax:success', this.removeRow);
-      $('.js-member-update-control').off('change').on('change', this.formSubmit.bind(this));
-      $('.js-edit-member-form').off('ajax:success').on('ajax:success', this.formSuccess.bind(this));
-      gl.utils.disableButtonIfEmptyField('#user_ids', 'input[name=commit]', 'change');
-    }
+  addListeners() {
+    $('.project_member, .group_member').off('ajax:success').on('ajax:success', this.removeRow);
+    $('.js-member-update-control').off('change').on('change', this.formSubmit.bind(this));
+    $('.js-edit-member-form').off('ajax:success').on('ajax:success', this.formSuccess.bind(this));
+    gl.utils.disableButtonIfEmptyField('#user_ids', 'input[name=commit]', 'change');
+  }
 
-    initGLDropdown() {
-      $('.js-member-permissions-dropdown').each((i, btn) => {
-        const $btn = $(btn);
+  initGLDropdown() {
+    $('.js-member-permissions-dropdown').each((i, btn) => {
+      const $btn = $(btn);
 
-        $btn.glDropdown({
-          selectable: true,
-          isSelectable(selected, $el) {
-            return !$el.hasClass('is-active');
-          },
-          fieldName: $btn.data('field-name'),
-          id(selected, $el) {
-            return $el.data('id');
-          },
-          toggleLabel(selected, $el) {
-            return $el.text();
-          },
-          clicked: (options) => {
-            this.formSubmit(null, options.$el);
-          },
-        });
+      $btn.glDropdown({
+        selectable: true,
+        isSelectable(selected, $el) {
+          return !$el.hasClass('is-active');
+        },
+        fieldName: $btn.data('field-name'),
+        id(selected, $el) {
+          return $el.data('id');
+        },
+        toggleLabel(selected, $el) {
+          return $el.text();
+        },
+        clicked: (options) => {
+          this.formSubmit(null, options.$el);
+        },
       });
-    }
-
-    removeRow(e) {
-      const $target = $(e.target);
+    });
+  }
+  // eslint-disable-next-line class-methods-use-this
+  removeRow(e) {
+    const $target = $(e.target);
 
-      if ($target.hasClass('btn-remove')) {
-        $target.closest('.member')
-          .fadeOut(function fadeOutMemberRow() {
-            $(this).remove();
-          });
-      }
+    if ($target.hasClass('btn-remove')) {
+      $target.closest('.member')
+        .fadeOut(function fadeOutMemberRow() {
+          $(this).remove();
+        });
     }
+  }
 
-    formSubmit(e, $el = null) {
-      const $this = e ? $(e.currentTarget) : $el;
-      const { $toggle, $dateInput } = this.getMemberListItems($this);
-
-      $this.closest('form').trigger('submit.rails');
-
-      $toggle.disable();
-      $dateInput.disable();
-    }
+  formSubmit(e, $el = null) {
+    const $this = e ? $(e.currentTarget) : $el;
+    const { $toggle, $dateInput } = this.getMemberListItems($this);
 
-    formSuccess(e) {
-      const { $toggle, $dateInput } = this.getMemberListItems($(e.currentTarget).closest('.member'));
+    $this.closest('form').trigger('submit.rails');
 
-      $toggle.enable();
-      $dateInput.enable();
-    }
+    $toggle.disable();
+    $dateInput.disable();
+  }
 
-    getMemberListItems($el) {
-      const $memberListItem = $el.is('.member') ? $el : $(`#${$el.data('el-id')}`);
+  formSuccess(e) {
+    const { $toggle, $dateInput } = this.getMemberListItems($(e.currentTarget).closest('.member'));
 
-      return {
-        $memberListItem,
-        $toggle: $memberListItem.find('.dropdown-menu-toggle'),
-        $dateInput: $memberListItem.find('.js-access-expiration-date'),
-      };
-    }
+    $toggle.enable();
+    $dateInput.enable();
   }
+  // eslint-disable-next-line class-methods-use-this
+  getMemberListItems($el) {
+    const $memberListItem = $el.is('.member') ? $el : $(`#${$el.data('el-id')}`);
 
-  gl.Members = Members;
-})();
+    return {
+      $memberListItem,
+      $toggle: $memberListItem.find('.dropdown-menu-toggle'),
+      $dateInput: $memberListItem.find('.js-access-expiration-date'),
+    };
+  }
+}
diff --git a/app/assets/javascripts/milestone_select.js b/app/assets/javascripts/milestone_select.js
index 951d5e559b4..e7d5325a509 100644
--- a/app/assets/javascripts/milestone_select.js
+++ b/app/assets/javascripts/milestone_select.js
@@ -146,7 +146,9 @@ import _ from 'underscore';
           clicked: function(options) {
             const { $el, e } = options;
             let selected = options.selectedObj;
+
             var data, isIssueIndex, isMRIndex, isSelecting, page, boardsStore;
+            if (!selected) return;
             page = $('body').attr('data-page');
             isIssueIndex = page === 'projects:issues:index';
             isMRIndex = (page === page && page === 'projects:merge_requests:index');
diff --git a/app/assets/javascripts/network/network_bundle.js b/app/assets/javascripts/network/network_bundle.js
index 8aae2ad201c..129f1724cb8 100644
--- a/app/assets/javascripts/network/network_bundle.js
+++ b/app/assets/javascripts/network/network_bundle.js
@@ -1,6 +1,6 @@
 /* eslint-disable func-names, space-before-function-paren, prefer-arrow-callback, quotes, no-var, vars-on-top, camelcase, comma-dangle, consistent-return, max-len */
-/* global ShortcutsNetwork */
 
+import ShortcutsNetwork from '../shortcuts_network';
 import Network from './network';
 
 $(function() {
diff --git a/app/assets/javascripts/notes.js b/app/assets/javascripts/notes.js
index 790f78d2e11..9c008da1a5d 100644
--- a/app/assets/javascripts/notes.js
+++ b/app/assets/javascripts/notes.js
@@ -13,7 +13,6 @@ import $ from 'jquery';
 import _ from 'underscore';
 import Cookies from 'js-cookie';
 import autosize from 'vendor/autosize';
-import Dropzone from 'dropzone';
 import 'vendor/jquery.caret'; // required by jquery.atwho
 import 'vendor/jquery.atwho';
 import AjaxCache from '~/lib/utils/ajax_cache';
@@ -22,13 +21,11 @@ import CommentTypeToggle from './comment_type_toggle';
 import GLForm from './gl_form';
 import loadAwardsHandler from './awards_handler';
 import './autosave';
-import './dropzone_input';
 import TaskList from './task_list';
 import { ajaxPost, isInViewport, getPagePath, scrollToElement, isMetaKey } from './lib/utils/common_utils';
 import imageDiffHelper from './image_diff/helpers/index';
 
 window.autosize = autosize;
-window.Dropzone = Dropzone;
 
 function normalizeNewlines(str) {
   return str.replace(/\r\n/g, '\n');
diff --git a/app/assets/javascripts/registry/components/collapsible_container.vue b/app/assets/javascripts/registry/components/collapsible_container.vue
index 41ea9742406..ac1c3ec253c 100644
--- a/app/assets/javascripts/registry/components/collapsible_container.vue
+++ b/app/assets/javascripts/registry/components/collapsible_container.vue
@@ -57,7 +57,7 @@
       },
 
       showError(message) {
-        Flash((errorMessages[message]));
+        Flash(errorMessages[message]);
       },
     },
   };
diff --git a/app/assets/javascripts/registry/components/table_registry.vue b/app/assets/javascripts/registry/components/table_registry.vue
index 4ce1571b0aa..e917279947e 100644
--- a/app/assets/javascripts/registry/components/table_registry.vue
+++ b/app/assets/javascripts/registry/components/table_registry.vue
@@ -57,7 +57,7 @@
       },
 
       showError(message) {
-        Flash((errorMessages[message]));
+        Flash(errorMessages[message]);
       },
     },
   };
diff --git a/app/assets/javascripts/registry/stores/actions.js b/app/assets/javascripts/registry/stores/actions.js
index 34ed40b8b65..795b39bb3dc 100644
--- a/app/assets/javascripts/registry/stores/actions.js
+++ b/app/assets/javascripts/registry/stores/actions.js
@@ -29,11 +29,9 @@ export const fetchList = ({ commit }, { repo, page }) => {
     });
 };
 
-export const deleteRepo = ({ commit }, repo) => Vue.http.delete(repo.destroyPath)
-  .then(res => res.json());
+export const deleteRepo = ({ commit }, repo) => Vue.http.delete(repo.destroyPath);
 
-export const deleteRegistry = ({ commit }, image) => Vue.http.delete(image.destroyPath)
-  .then(res => res.json());
+export const deleteRegistry = ({ commit }, image) => Vue.http.delete(image.destroyPath);
 
 export const setMainEndpoint = ({ commit }, data) => commit(types.SET_MAIN_ENDPOINT, data);
 export const toggleLoading = ({ commit }) => commit(types.TOGGLE_MAIN_LOADING);
diff --git a/app/assets/javascripts/registry/stores/mutations.js b/app/assets/javascripts/registry/stores/mutations.js
index e40382e7afc..208c3c39866 100644
--- a/app/assets/javascripts/registry/stores/mutations.js
+++ b/app/assets/javascripts/registry/stores/mutations.js
@@ -38,7 +38,7 @@ export default {
       tag: element.name,
       revision: element.revision,
       shortRevision: element.short_revision,
-      size: element.size,
+      size: element.total_size,
       layers: element.layers,
       location: element.location,
       createdAt: element.created_at,
diff --git a/app/assets/javascripts/repo/components/repo.vue b/app/assets/javascripts/repo/components/repo.vue
index cc60aa5939c..0a89a9f16cb 100644
--- a/app/assets/javascripts/repo/components/repo.vue
+++ b/app/assets/javascripts/repo/components/repo.vue
@@ -11,7 +11,9 @@ import Helper from '../helpers/repo_helper';
 import MonacoLoaderHelper from '../helpers/monaco_loader_helper';
 
 export default {
-  data: () => Store,
+  data() {
+    return Store;
+  },
   mixins: [RepoMixin],
   components: {
     RepoSidebar,
diff --git a/app/assets/javascripts/repo/components/repo_commit_section.vue b/app/assets/javascripts/repo/components/repo_commit_section.vue
index 6d8cc964eb2..185cd90ac06 100644
--- a/app/assets/javascripts/repo/components/repo_commit_section.vue
+++ b/app/assets/javascripts/repo/components/repo_commit_section.vue
@@ -3,12 +3,20 @@ import Flash from '../../flash';
 import Store from '../stores/repo_store';
 import RepoMixin from '../mixins/repo_mixin';
 import Service from '../services/repo_service';
+import PopupDialog from '../../vue_shared/components/popup_dialog.vue';
+import { visitUrl } from '../../lib/utils/url_utility';
 
 export default {
-  data: () => Store,
-
   mixins: [RepoMixin],
 
+  data() {
+    return Store;
+  },
+
+  components: {
+    PopupDialog,
+  },
+
   computed: {
     showCommitable() {
       return this.isCommitable && this.changedFiles.length;
@@ -28,7 +36,16 @@ export default {
   },
 
   methods: {
-    makeCommit() {
+    commitToNewBranch(status) {
+      if (status) {
+        this.showNewBranchDialog = false;
+        this.tryCommit(null, true, true);
+      } else {
+        // reset the state
+      }
+    },
+
+    makeCommit(newBranch) {
       // see https://docs.gitlab.com/ce/api/commits.html#create-a-commit-with-multiple-files-and-actions
       const commitMessage = this.commitMessage;
       const actions = this.changedFiles.map(f => ({
@@ -36,19 +53,63 @@ export default {
         file_path: f.path,
         content: f.newContent,
       }));
+      const branch = newBranch ? `${this.currentBranch}-${this.currentShortHash}` : this.currentBranch;
       const payload = {
-        branch: Store.currentBranch,
+        branch,
         commit_message: commitMessage,
         actions,
       };
-      Store.submitCommitsLoading = true;
+      if (newBranch) {
+        payload.start_branch = this.currentBranch;
+      }
+      this.submitCommitsLoading = true;
       Service.commitFiles(payload)
-        .then(this.resetCommitState)
-        .catch(() => Flash('An error occurred while committing your changes'));
+        .then(() => {
+          this.resetCommitState();
+          if (this.startNewMR) {
+            this.redirectToNewMr(branch);
+          } else {
+            this.redirectToBranch(branch);
+          }
+        })
+        .catch(() => {
+          Flash('An error occurred while committing your changes');
+        });
+    },
+
+    tryCommit(e, skipBranchCheck = false, newBranch = false) {
+      if (skipBranchCheck) {
+        this.makeCommit(newBranch);
+      } else {
+        Store.setBranchHash()
+          .then(() => {
+            if (Store.branchChanged) {
+              Store.showNewBranchDialog = true;
+              return;
+            }
+            this.makeCommit(newBranch);
+          })
+          .catch(() => {
+            Flash('An error occurred while committing your changes');
+          });
+      }
+    },
+
+    redirectToNewMr(branch) {
+      visitUrl(this.newMrTemplateUrl.replace('{{source_branch}}', branch));
+    },
+
+    redirectToBranch(branch) {
+      visitUrl(this.customBranchURL.replace('{{branch}}', branch));
     },
 
     resetCommitState() {
       this.submitCommitsLoading = false;
+      this.openedFiles = this.openedFiles.map((file) => {
+        const f = file;
+        f.changed = false;
+        return f;
+      });
       this.changedFiles = [];
       this.commitMessage = '';
       this.editMode = false;
@@ -62,9 +123,17 @@ export default {
 <div
   v-if="showCommitable"
   id="commit-area">
+  <popup-dialog
+    v-if="showNewBranchDialog"
+    :primary-button-label="__('Create new branch')"
+    kind="primary"
+    :title="__('Branch has changed')"
+    :text="__('This branch has changed since you started editing. Would you like to create a new branch?')"
+    @submit="commitToNewBranch"
+  />
   <form
     class="form-horizontal"
-    @submit.prevent="makeCommit">
+    @submit.prevent="tryCommit">
     <fieldset>
       <div class="form-group">
         <label class="col-md-4 control-label staged-files">
@@ -117,7 +186,7 @@ export default {
           class="btn btn-success">
           <i
             v-if="submitCommitsLoading"
-            class="fa fa-spinner fa-spin"
+            class="js-commit-loading-icon fa fa-spinner fa-spin"
             aria-hidden="true"
             aria-label="loading">
           </i>
@@ -126,6 +195,14 @@ export default {
           </span>
         </button>
       </div>
+      <div class="col-md-offset-4 col-md-6">
+        <div class="checkbox">
+          <label>
+            <input type="checkbox" v-model="startNewMR">
+            <span>Start a <strong>new merge request</strong> with these changes</span>
+          </label>
+        </div>
+      </div>
     </fieldset>
   </form>
 </div>
diff --git a/app/assets/javascripts/repo/components/repo_edit_button.vue b/app/assets/javascripts/repo/components/repo_edit_button.vue
index 353142edeb7..e6e8b2e5205 100644
--- a/app/assets/javascripts/repo/components/repo_edit_button.vue
+++ b/app/assets/javascripts/repo/components/repo_edit_button.vue
@@ -3,7 +3,9 @@ import Store from '../stores/repo_store';
 import RepoMixin from '../mixins/repo_mixin';
 
 export default {
-  data: () => Store,
+  data() {
+    return Store;
+  },
   mixins: [RepoMixin],
   computed: {
     buttonLabel() {
diff --git a/app/assets/javascripts/repo/components/repo_editor.vue b/app/assets/javascripts/repo/components/repo_editor.vue
index 02d9c775046..4639bee6d66 100644
--- a/app/assets/javascripts/repo/components/repo_editor.vue
+++ b/app/assets/javascripts/repo/components/repo_editor.vue
@@ -5,7 +5,9 @@ import Service from '../services/repo_service';
 import Helper from '../helpers/repo_helper';
 
 const RepoEditor = {
-  data: () => Store,
+  data() {
+    return Store;
+  },
 
   destroyed() {
     if (Helper.monacoInstance) {
@@ -22,7 +24,8 @@ const RepoEditor = {
         const monacoInstance = Helper.monaco.editor.create(this.$el, {
           model: null,
           readOnly: false,
-          contextmenu: false,
+          contextmenu: true,
+          scrollBeyondLastLine: false,
         });
 
         Helper.monacoInstance = monacoInstance;
@@ -92,7 +95,7 @@ const RepoEditor = {
     },
 
     blobRaw() {
-      if (Helper.monacoInstance && !this.isTree) {
+      if (Helper.monacoInstance) {
         this.setupEditor();
       }
     },
diff --git a/app/assets/javascripts/repo/components/repo_file.vue b/app/assets/javascripts/repo/components/repo_file.vue
index 8b9cbd23456..8c86e87ed3a 100644
--- a/app/assets/javascripts/repo/components/repo_file.vue
+++ b/app/assets/javascripts/repo/components/repo_file.vue
@@ -1,107 +1,95 @@
 <script>
-import TimeAgoMixin from '../../vue_shared/mixins/timeago';
+  import timeAgoMixin from '../../vue_shared/mixins/timeago';
+  import eventHub from '../event_hub';
+  import repoMixin from '../mixins/repo_mixin';
 
-const RepoFile = {
-  mixins: [TimeAgoMixin],
-  props: {
-    file: {
-      type: Object,
-      required: true,
+  export default {
+    mixins: [
+      repoMixin,
+      timeAgoMixin,
+    ],
+    props: {
+      file: {
+        type: Object,
+        required: true,
+      },
     },
-    isMini: {
-      type: Boolean,
-      required: false,
-      default: false,
+    computed: {
+      fileIcon() {
+        const classObj = {
+          'fa-spinner fa-spin': this.file.loading,
+          [this.file.icon]: !this.file.loading,
+          'fa-folder-open': !this.file.loading && this.file.opened,
+        };
+        return classObj;
+      },
+      levelIndentation() {
+        return {
+          marginLeft: `${this.file.level * 16}px`,
+        };
+      },
+      shortId() {
+        return this.file.id.substr(0, 8);
+      },
     },
-    loading: {
-      type: Object,
-      required: false,
-      default() { return { tree: false }; },
+    methods: {
+      linkClicked(file) {
+        eventHub.$emit('fileNameClicked', file);
+      },
     },
-    hasFiles: {
-      type: Boolean,
-      required: false,
-      default: false,
-    },
-    activeFile: {
-      type: Object,
-      required: true,
-    },
-  },
-
-  computed: {
-    canShowFile() {
-      return !this.loading.tree || this.hasFiles;
-    },
-
-    fileIcon() {
-      const classObj = {
-        'fa-spinner fa-spin': this.file.loading,
-        [this.file.icon]: !this.file.loading,
-      };
-      return classObj;
-    },
-
-    fileIndentation() {
-      return {
-        'margin-left': `${this.file.level * 10}px`,
-      };
-    },
-
-    activeFileClass() {
-      return {
-        active: this.activeFile.url === this.file.url,
-      };
-    },
-  },
-
-  methods: {
-    linkClicked(file) {
-      this.$emit('linkclicked', file);
-    },
-  },
-};
-
-export default RepoFile;
+  };
 </script>
 
 <template>
-<tr
-  v-if="canShowFile"
-  class="file"
-  :class="activeFileClass"
-  @click.prevent="linkClicked(file)">
-  <td>
-    <i
-      class="fa fa-fw file-icon"
-      :class="fileIcon"
-      :style="fileIndentation"
-      aria-label="file icon">
-    </i>
-    <a
-      :href="file.url"
-      class="repo-file-name"
-      :title="file.url">
-      {{file.name}}
-    </a>
-  </td>
+  <tr
+    class="file"
+    @click.prevent="linkClicked(file)">
+    <td>
+      <i
+        class="fa fa-fw file-icon"
+        :class="fileIcon"
+        :style="levelIndentation"
+        aria-hidden="true"
+      >
+      </i>
+      <a
+        :href="file.url"
+        class="repo-file-name"
+      >
+        {{ file.name }}
+      </a>
+      <template v-if="file.type === 'submodule' && file.id">
+        @
+        <span class="commit-sha">
+          <a
+            @click.stop
+            :href="file.tree_url"
+          >
+            {{ shortId }}
+          </a>
+        </span>
+      </template>
+    </td>
 
-  <template v-if="!isMini">
-    <td class="hidden-sm hidden-xs">
-      <div class="commit-message">
-        <a @click.stop :href="file.lastCommitUrl">
-          {{file.lastCommitMessage}}
+    <template v-if="!isMini">
+      <td class="hidden-sm hidden-xs">
+        <a
+          @click.stop
+          :href="file.lastCommit.url"
+          class="commit-message"
+        >
+          {{ file.lastCommit.message }}
         </a>
-      </div>
-    </td>
+      </td>
 
-    <td class="hidden-xs text-right">
-      <span
-        class="commit-update"
-        :title="tooltipTitle(file.lastCommitUpdate)">
-        {{timeFormated(file.lastCommitUpdate)}}
-      </span>
-    </td>
-  </template>
-</tr>
+      <td class="commit-update hidden-xs text-right">
+        <span
+          v-if="file.lastCommit.updatedAt"
+          :title="tooltipTitle(file.lastCommit.updatedAt)"
+        >
+          {{ timeFormated(file.lastCommit.updatedAt) }}
+        </span>
+      </td>
+    </template>
+  </tr>
 </template>
diff --git a/app/assets/javascripts/repo/components/repo_file_buttons.vue b/app/assets/javascripts/repo/components/repo_file_buttons.vue
index e43ef366f47..03cd219e718 100644
--- a/app/assets/javascripts/repo/components/repo_file_buttons.vue
+++ b/app/assets/javascripts/repo/components/repo_file_buttons.vue
@@ -4,7 +4,9 @@ import Helper from '../helpers/repo_helper';
 import RepoMixin from '../mixins/repo_mixin';
 
 const RepoFileButtons = {
-  data: () => Store,
+  data() {
+    return Store;
+  },
 
   mixins: [RepoMixin],
 
diff --git a/app/assets/javascripts/repo/components/repo_file_options.vue b/app/assets/javascripts/repo/components/repo_file_options.vue
deleted file mode 100644
index 6a15755f029..00000000000
--- a/app/assets/javascripts/repo/components/repo_file_options.vue
+++ /dev/null
@@ -1,25 +0,0 @@
-<script>
-const RepoFileOptions = {
-  props: {
-    isMini: {
-      type: Boolean,
-      required: false,
-      default: false,
-    },
-    projectName: {
-      type: String,
-      required: true,
-    },
-  },
-};
-
-export default RepoFileOptions;
-</script>
-
-<template>
-  <tr v-if="isMini" class="repo-file-options">
-    <td>
-      <span class="title">{{projectName}}</span>
-    </td>
-  </tr>
-</template>
diff --git a/app/assets/javascripts/repo/components/repo_loading_file.vue b/app/assets/javascripts/repo/components/repo_loading_file.vue
index bc8c64c8362..832b45b2b29 100644
--- a/app/assets/javascripts/repo/components/repo_loading_file.vue
+++ b/app/assets/javascripts/repo/components/repo_loading_file.vue
@@ -1,43 +1,23 @@
 <script>
-const RepoLoadingFile = {
-  props: {
-    loading: {
-      type: Object,
-      required: false,
-      default: {},
-    },
-    hasFiles: {
-      type: Boolean,
-      required: false,
-      default: false,
-    },
-    isMini: {
-      type: Boolean,
-      required: false,
-      default: false,
-    },
-  },
-
-  computed: {
-    showGhostLines() {
-      return this.loading.tree && !this.hasFiles;
-    },
-  },
+  import repoMixin from '../mixins/repo_mixin';
 
-  methods: {
-    lineOfCode(n) {
-      return `skeleton-line-${n}`;
+  export default {
+    mixins: [
+      repoMixin,
+    ],
+    methods: {
+      lineOfCode(n) {
+        return `skeleton-line-${n}`;
+      },
     },
-  },
-};
-
-export default RepoLoadingFile;
+  };
 </script>
 
 <template>
   <tr
-    v-if="showGhostLines"
-    class="loading-file">
+    class="loading-file"
+    aria-label="Loading files"
+  >
     <td>
       <div
         class="animation-container animation-container-small">
@@ -48,29 +28,28 @@ export default RepoLoadingFile;
         </div>
       </div>
     </td>
-
-    <td
-      v-if="!isMini"
-      class="hidden-sm hidden-xs">
-      <div class="animation-container">
-        <div
-          v-for="n in 6"
-          :key="n"
-          :class="lineOfCode(n)">
+    <template v-if="!isMini">
+      <td
+        class="hidden-sm hidden-xs">
+        <div class="animation-container">
+          <div
+            v-for="n in 6"
+            :key="n"
+            :class="lineOfCode(n)">
+          </div>
         </div>
-      </div>
-    </td>
+      </td>
 
-    <td
-      v-if="!isMini"
-      class="hidden-xs">
-      <div class="animation-container animation-container-small">
-        <div
-          v-for="n in 6"
-          :key="n"
-          :class="lineOfCode(n)">
+      <td
+        class="hidden-xs">
+        <div class="animation-container animation-container-small animation-container-right">
+          <div
+            v-for="n in 6"
+            :key="n"
+            :class="lineOfCode(n)">
+          </div>
         </div>
-      </div>
-    </td>
+      </td>
+    </template>
   </tr>
 </template>
diff --git a/app/assets/javascripts/repo/components/repo_prev_directory.vue b/app/assets/javascripts/repo/components/repo_prev_directory.vue
index bbdbdc61e38..c4bf6dcdec2 100644
--- a/app/assets/javascripts/repo/components/repo_prev_directory.vue
+++ b/app/assets/javascripts/repo/components/repo_prev_directory.vue
@@ -1,38 +1,38 @@
 <script>
-import RepoMixin from '../mixins/repo_mixin';
+  import eventHub from '../event_hub';
+  import repoMixin from '../mixins/repo_mixin';
 
-const RepoPreviousDirectory = {
-  props: {
-    prevUrl: {
-      type: String,
-      required: true,
+  export default {
+    mixins: [
+      repoMixin,
+    ],
+    props: {
+      prevUrl: {
+        type: String,
+        required: true,
+      },
     },
-  },
-
-  mixins: [RepoMixin],
-
-  computed: {
-    colSpanCondition() {
-      return this.isMini ? undefined : 3;
+    computed: {
+      colSpanCondition() {
+        return this.isMini ? undefined : 3;
+      },
     },
-  },
-
-  methods: {
-    linkClicked(file) {
-      this.$emit('linkclicked', file);
+    methods: {
+      linkClicked(file) {
+        eventHub.$emit('goToPreviousDirectoryClicked', file);
+      },
     },
-  },
-};
-
-export default RepoPreviousDirectory;
+  };
 </script>
 
 <template>
-<tr class="prev-directory">
-  <td
-    :colspan="colSpanCondition"
-    @click.prevent="linkClicked(prevUrl)">
-    <a :href="prevUrl">..</a>
-  </td>
-</tr>
+  <tr class="file prev-directory">
+    <td
+      :colspan="colSpanCondition"
+      class="table-cell"
+      @click.prevent="linkClicked(prevUrl)"
+    >
+      <a :href="prevUrl">...</a>
+    </td>
+  </tr>
 </template>
diff --git a/app/assets/javascripts/repo/components/repo_preview.vue b/app/assets/javascripts/repo/components/repo_preview.vue
index a87bef6084a..b5be771d539 100644
--- a/app/assets/javascripts/repo/components/repo_preview.vue
+++ b/app/assets/javascripts/repo/components/repo_preview.vue
@@ -4,7 +4,9 @@
 import Store from '../stores/repo_store';
 
 export default {
-  data: () => Store,
+  data() {
+    return Store;
+  },
   computed: {
     html() {
       return this.activeFile.html;
diff --git a/app/assets/javascripts/repo/components/repo_sidebar.vue b/app/assets/javascripts/repo/components/repo_sidebar.vue
index e0f3c33003a..09dc9ee25d7 100644
--- a/app/assets/javascripts/repo/components/repo_sidebar.vue
+++ b/app/assets/javascripts/repo/components/repo_sidebar.vue
@@ -1,9 +1,10 @@
 <script>
+import _ from 'underscore';
 import Service from '../services/repo_service';
 import Helper from '../helpers/repo_helper';
 import Store from '../stores/repo_store';
+import eventHub from '../event_hub';
 import RepoPreviousDirectory from './repo_prev_directory.vue';
-import RepoFileOptions from './repo_file_options.vue';
 import RepoFile from './repo_file.vue';
 import RepoLoadingFile from './repo_loading_file.vue';
 import RepoMixin from '../mixins/repo_mixin';
@@ -11,21 +12,35 @@ import RepoMixin from '../mixins/repo_mixin';
 export default {
   mixins: [RepoMixin],
   components: {
-    'repo-file-options': RepoFileOptions,
     'repo-previous-directory': RepoPreviousDirectory,
     'repo-file': RepoFile,
     'repo-loading-file': RepoLoadingFile,
   },
-
   created() {
     window.addEventListener('popstate', this.checkHistory);
   },
   destroyed() {
+    eventHub.$off('fileNameClicked', this.fileClicked);
+    eventHub.$off('goToPreviousDirectoryClicked', this.goToPreviousDirectoryClicked);
     window.removeEventListener('popstate', this.checkHistory);
   },
+  mounted() {
+    eventHub.$on('fileNameClicked', this.fileClicked);
+    eventHub.$on('goToPreviousDirectoryClicked', this.goToPreviousDirectoryClicked);
+  },
+  data() {
+    return Store;
+  },
+  computed: {
+    flattendFiles() {
+      const mapFiles = arr => (!arr.files.length ? [] : _.map(arr.files, a => [a, mapFiles(a)]));
 
-  data: () => Store,
-
+      return _.chain(this.files)
+        .map(arr => [arr, mapFiles(arr)])
+        .flatten()
+        .value();
+    },
+  },
   methods: {
     checkHistory() {
       let selectedFile = this.files.find(file => location.pathname.indexOf(file.url) > -1);
@@ -52,21 +67,25 @@ export default {
     },
 
     fileClicked(clickedFile, lineNumber) {
-      let file = clickedFile;
+      const file = clickedFile;
+
       if (file.loading) return;
-      file.loading = true;
 
       if (file.type === 'tree' && file.opened) {
-        file = Store.removeChildFilesOfTree(file);
-        file.loading = false;
+        Helper.setDirectoryToClosed(file);
         Store.setActiveLine(lineNumber);
+      } else if (file.type === 'submodule') {
+        file.loading = true;
+
+        gl.utils.visitUrl(file.url);
       } else {
         const openFile = Helper.getFileFromPath(file.url);
+
         if (openFile) {
-          file.loading = false;
           Store.setActiveFiles(openFile);
           Store.setActiveLine(lineNumber);
         } else {
+          file.loading = true;
           Service.url = file.url;
           Helper.getContent(file)
             .then(() => {
@@ -81,7 +100,7 @@ export default {
 
     goToPreviousDirectoryClicked(prevURL) {
       Service.url = prevURL;
-      Helper.getContent(null)
+      Helper.getContent(null, true)
         .then(() => Helper.scrollTabsRight())
         .catch(Helper.loadingError);
     },
@@ -92,38 +111,43 @@ export default {
 <template>
 <div id="sidebar" :class="{'sidebar-mini' : isMini}">
   <table class="table">
-    <thead v-if="!isMini">
+    <thead>
       <tr>
-        <th class="name">Name</th>
-        <th class="hidden-sm hidden-xs last-commit">Last commit</th>
-        <th class="hidden-xs last-update text-right">Last update</th>
+        <th
+          v-if="isMini"
+          class="repo-file-options title"
+        >
+          <strong class="clgray">
+            {{ projectName }}
+          </strong>
+        </th>
+        <template v-else>
+          <th class="name">
+            Name
+          </th>
+          <th class="hidden-sm hidden-xs last-commit">
+            Last commit
+          </th>
+          <th class="hidden-xs last-update text-right">
+            Last update
+          </th>
+        </template>
       </tr>
     </thead>
     <tbody>
-      <repo-file-options
-        :is-mini="isMini"
-        :project-name="projectName"
-      />
       <repo-previous-directory
-        v-if="isRoot"
+        v-if="!isRoot && !loading.tree"
         :prev-url="prevURL"
-        @linkclicked="goToPreviousDirectoryClicked(prevURL)"/>
+      />
       <repo-loading-file
+        v-if="!flattendFiles.length && loading.tree"
         v-for="n in 5"
         :key="n"
-        :loading="loading"
-        :has-files="!!files.length"
-        :is-mini="isMini"
       />
       <repo-file
-        v-for="file in files"
+        v-for="file in flattendFiles"
         :key="file.id"
         :file="file"
-        :is-mini="isMini"
-        @linkclicked="fileClicked(file)"
-        :is-tree="isTree"
-        :has-files="!!files.length"
-        :active-file="activeFile"
       />
     </tbody>
   </table>
diff --git a/app/assets/javascripts/repo/components/repo_tab.vue b/app/assets/javascripts/repo/components/repo_tab.vue
index 0d0c34ec741..098715915b0 100644
--- a/app/assets/javascripts/repo/components/repo_tab.vue
+++ b/app/assets/javascripts/repo/components/repo_tab.vue
@@ -26,11 +26,13 @@ const RepoTab = {
   },
 
   methods: {
-    tabClicked: Store.setActiveFiles,
-
+    tabClicked(file) {
+      Store.setActiveFiles(file);
+    },
     closeTab(file) {
       if (file.changed) return;
-      this.$emit('tabclosed', file);
+
+      Store.removeFromOpenedFiles(file);
     },
   },
 };
@@ -39,25 +41,28 @@ export default RepoTab;
 </script>
 
 <template>
-<li @click="tabClicked(tab)">
-  <a
-    href="#0"
-    class="close"
-    @click.stop.prevent="closeTab(tab)"
-    :aria-label="closeLabel">
-    <i
-      class="fa"
-      :class="changedClass"
-      aria-hidden="true">
-    </i>
-  </a>
+  <li
+    :class="{ active : tab.active }"
+    @click="tabClicked(tab)"
+  >
+    <button
+      type="button"
+      class="close-btn"
+      @click.stop.prevent="closeTab(tab)"
+      :aria-label="closeLabel">
+      <i
+        class="fa"
+        :class="changedClass"
+        aria-hidden="true">
+      </i>
+    </button>
 
-  <a
-    href="#"
-    class="repo-tab"
-    :title="tab.url"
-    @click.prevent="tabClicked(tab)">
-    {{tab.name}}
-  </a>
-</li>
+    <a
+      href="#"
+      class="repo-tab"
+      :title="tab.url"
+      @click.prevent="tabClicked(tab)">
+      {{tab.name}}
+    </a>
+  </li>
 </template>
diff --git a/app/assets/javascripts/repo/components/repo_tabs.vue b/app/assets/javascripts/repo/components/repo_tabs.vue
index 9c5bfc5d0cf..b57cd0960de 100644
--- a/app/assets/javascripts/repo/components/repo_tabs.vue
+++ b/app/assets/javascripts/repo/components/repo_tabs.vue
@@ -1,36 +1,29 @@
 <script>
-import Store from '../stores/repo_store';
-import RepoTab from './repo_tab.vue';
-import RepoMixin from '../mixins/repo_mixin';
+  import Store from '../stores/repo_store';
+  import RepoTab from './repo_tab.vue';
+  import RepoMixin from '../mixins/repo_mixin';
 
-const RepoTabs = {
-  mixins: [RepoMixin],
-
-  components: {
-    'repo-tab': RepoTab,
-  },
-
-  data: () => Store,
-
-  methods: {
-    tabClosed(file) {
-      Store.removeFromOpenedFiles(file);
+  export default {
+    mixins: [RepoMixin],
+    components: {
+      'repo-tab': RepoTab,
     },
-  },
-};
-
-export default RepoTabs;
+    data() {
+      return Store;
+    },
+  };
 </script>
 
 <template>
-<ul id="tabs">
-  <repo-tab
-    v-for="tab in openedFiles"
-    :key="tab.id"
-    :tab="tab"
-    :class="{'active' : tab.active}"
-    @tabclosed="tabClosed"
-  />
-  <li class="tabs-divider" />
-</ul>
+  <ul
+    id="tabs"
+    class="list-unstyled"
+  >
+    <repo-tab
+      v-for="tab in openedFiles"
+      :key="tab.id"
+      :tab="tab"
+    />
+    <li class="tabs-divider" />
+  </ul>
 </template>
diff --git a/app/assets/javascripts/repo/event_hub.js b/app/assets/javascripts/repo/event_hub.js
new file mode 100644
index 00000000000..0948c2e5352
--- /dev/null
+++ b/app/assets/javascripts/repo/event_hub.js
@@ -0,0 +1,3 @@
+import Vue from 'vue';
+
+export default new Vue();
diff --git a/app/assets/javascripts/repo/helpers/repo_helper.js b/app/assets/javascripts/repo/helpers/repo_helper.js
index 46204598e1d..f7b7f93e4b8 100644
--- a/app/assets/javascripts/repo/helpers/repo_helper.js
+++ b/app/assets/javascripts/repo/helpers/repo_helper.js
@@ -1,3 +1,4 @@
+import { convertPermissionToBoolean } from '../../lib/utils/common_utils';
 import Service from '../services/repo_service';
 import Store from '../stores/repo_store';
 import Flash from '../../flash';
@@ -25,10 +26,6 @@ const RepoHelper = {
 
   key: '',
 
-  isTree(data) {
-    return Object.hasOwnProperty.call(data, 'blobs');
-  },
-
   Time: window.performance
   && window.performance.now
   ? window.performance
@@ -58,13 +55,20 @@ const RepoHelper = {
   },
 
   setDirectoryOpen(tree, title) {
-    const file = tree;
-    if (!file) return undefined;
+    if (!tree) return;
 
-    file.opened = true;
-    file.icon = 'fa-folder-open';
-    RepoHelper.updateHistoryEntry(file.url, title);
-    return file;
+    Object.assign(tree, {
+      opened: true,
+    });
+
+    RepoHelper.updateHistoryEntry(tree.url, title);
+  },
+
+  setDirectoryToClosed(entry) {
+    Object.assign(entry, {
+      opened: false,
+      files: [],
+    });
   },
 
   isRenderable() {
@@ -81,63 +85,23 @@ const RepoHelper = {
     .catch(RepoHelper.loadingError);
   },
 
-  // when you open a directory you need to put the directory files under
-  // the directory... This will merge the list of the current directory and the new list.
-  getNewMergedList(inDirectory, currentList, newList) {
-    const newListSorted = newList.sort(this.compareFilesCaseInsensitive);
-    if (!inDirectory) return newListSorted;
-    const indexOfFile = currentList.findIndex(file => file.url === inDirectory.url);
-    if (!indexOfFile) return newListSorted;
-    return RepoHelper.mergeNewListToOldList(newListSorted, currentList, inDirectory, indexOfFile);
-  },
-
-  // within the get new merged list this does the merging of the current list of files
-  // and the new list of files. The files are never "in" another directory they just
-  // appear like they are because of the margin.
-  mergeNewListToOldList(newList, oldList, inDirectory, indexOfFile) {
-    newList.reverse().forEach((newFile) => {
-      const fileIndex = indexOfFile + 1;
-      const file = newFile;
-      file.level = inDirectory.level + 1;
-      oldList.splice(fileIndex, 0, file);
-    });
-
-    return oldList;
-  },
-
-  compareFilesCaseInsensitive(a, b) {
-    const aName = a.name.toLowerCase();
-    const bName = b.name.toLowerCase();
-    if (a.level > 0) return 0;
-    if (aName < bName) { return -1; }
-    if (aName > bName) { return 1; }
-    return 0;
-  },
+  getContent(treeOrFile, emptyFiles = false) {
+    let file = treeOrFile;
 
-  isRoot(url) {
-    // the url we are requesting -> split by the project URL. Grab the right side.
-    const isRoot = !!url.split(Store.projectUrl)[1]
-    // remove the first "/"
-    .slice(1)
-    // split this by "/"
-    .split('/')
-    // remove the first two items of the array... usually /tree/master.
-    .slice(2)
-    // we want to know the length of the array.
-    // If greater than 0 not root.
-    .length;
-    return isRoot;
-  },
+    if (!Store.files.length) {
+      Store.loading.tree = true;
+    }
 
-  getContent(treeOrFile) {
-    let file = treeOrFile;
     return Service.getContent()
     .then((response) => {
       const data = response.data;
-      if (response.headers && response.headers['page-title']) data.pageTitle = response.headers['page-title'];
+      if (response.headers && response.headers['page-title']) data.pageTitle = decodeURI(response.headers['page-title']);
+      if (response.headers && response.headers['is-root'] && !Store.isInitialRoot) {
+        Store.isRoot = convertPermissionToBoolean(response.headers['is-root']);
+        Store.isInitialRoot = Store.isRoot;
+      }
 
-      Store.isTree = RepoHelper.isTree(data);
-      if (!Store.isTree) {
+      if (file && file.type === 'blob') {
         if (!file) file = data;
         Store.binary = data.binary;
 
@@ -145,38 +109,40 @@ const RepoHelper = {
           // file might be undefined
           RepoHelper.setBinaryDataAsBase64(data);
           Store.setViewToPreview();
-        } else if (!Store.isPreviewView()) {
-          if (!data.render_error) {
-            Service.getRaw(data.raw_path)
-            .then((rawResponse) => {
-              Store.blobRaw = rawResponse.data;
-              data.plain = rawResponse.data;
-              RepoHelper.setFile(data, file);
-            }).catch(RepoHelper.loadingError);
-          }
+        } else if (!Store.isPreviewView() && !data.render_error) {
+          Service.getRaw(data.raw_path)
+          .then((rawResponse) => {
+            Store.blobRaw = rawResponse.data;
+            data.plain = rawResponse.data;
+            RepoHelper.setFile(data, file);
+          }).catch(RepoHelper.loadingError);
         }
 
         if (Store.isPreviewView()) {
           RepoHelper.setFile(data, file);
         }
+      } else {
+        Store.loading.tree = false;
+        RepoHelper.setDirectoryOpen(file, data.pageTitle || data.name);
 
-        // if the file tree is empty
-        if (Store.files.length === 0) {
-          const parentURL = Service.blobURLtoParentTree(Service.url);
-          Service.url = parentURL;
-          RepoHelper.getContent();
+        if (emptyFiles) {
+          Store.files = [];
         }
-      } else {
-        // it's a tree
-        if (!file) Store.isRoot = RepoHelper.isRoot(Service.url);
-        file = RepoHelper.setDirectoryOpen(file, data.pageTitle || data.name);
-        const newDirectory = RepoHelper.dataToListOfFiles(data);
-        Store.addFilesToDirectory(file, Store.files, newDirectory);
+
+        this.addToDirectory(file, data);
+
         Store.prevURL = Service.blobURLtoParentTree(Service.url);
       }
     }).catch(RepoHelper.loadingError);
   },
 
+  addToDirectory(file, data) {
+    const tree = file || Store;
+    const files = tree.files.concat(this.dataToListOfFiles(data, file ? file.level + 1 : 0));
+
+    tree.files = files;
+  },
+
   setFile(data, file) {
     const newFile = data;
     newFile.url = file.url || Service.url; // Grab the URL from service, happens on page refresh.
@@ -190,57 +156,41 @@ const RepoHelper = {
     Store.setActiveFiles(newFile);
   },
 
-  serializeBlob(blob) {
-    const simpleBlob = RepoHelper.serializeRepoEntity('blob', blob);
-    simpleBlob.lastCommitMessage = blob.last_commit.message;
-    simpleBlob.lastCommitUpdate = blob.last_commit.committed_date;
-    simpleBlob.loading = false;
+  serializeRepoEntity(type, entity, level = 0) {
+    const { id, url, name, icon, last_commit, tree_url } = entity;
 
-    return simpleBlob;
-  },
-
-  serializeTree(tree) {
-    return RepoHelper.serializeRepoEntity('tree', tree);
-  },
-
-  serializeSubmodule(submodule) {
-    return RepoHelper.serializeRepoEntity('submodule', submodule);
-  },
-
-  serializeRepoEntity(type, entity) {
-    const { url, name, icon, last_commit } = entity;
-    const returnObj = {
+    return {
+      id,
       type,
       name,
       url,
+      tree_url,
+      level,
       icon: `fa-${icon}`,
-      level: 0,
+      files: [],
       loading: false,
+      opened: false,
+      // eslint-disable-next-line camelcase
+      lastCommit: last_commit ? {
+        url: `${Store.projectUrl}/commit/${last_commit.id}`,
+        message: last_commit.message,
+        updatedAt: last_commit.committed_date,
+      } : {},
     };
-
-    if (entity.last_commit) {
-      returnObj.lastCommitUrl = `${Store.projectUrl}/commit/${last_commit.id}`;
-    } else {
-      returnObj.lastCommitUrl = '';
-    }
-    return returnObj;
   },
 
   scrollTabsRight() {
-    // wait for the transition. 0.1 seconds.
-    setTimeout(() => {
-      const tabs = document.getElementById('tabs');
-      if (!tabs) return;
-      tabs.scrollLeft = tabs.scrollWidth;
-    }, 200);
+    const tabs = document.getElementById('tabs');
+    if (!tabs) return;
+    tabs.scrollLeft = tabs.scrollWidth;
   },
 
-  dataToListOfFiles(data) {
+  dataToListOfFiles(data, level) {
     const { blobs, trees, submodules } = data;
     return [
-      ...blobs.map(blob => RepoHelper.serializeBlob(blob)),
-      ...trees.map(tree => RepoHelper.serializeTree(tree)),
-      ...submodules.map(submodule => RepoHelper.serializeSubmodule(submodule)),
+      ...trees.map(tree => RepoHelper.serializeRepoEntity('tree', tree, level)),
+      ...submodules.map(submodule => RepoHelper.serializeRepoEntity('submodule', submodule, level)),
+      ...blobs.map(blob => RepoHelper.serializeRepoEntity('blob', blob, level)),
     ];
   },
 
diff --git a/app/assets/javascripts/repo/index.js b/app/assets/javascripts/repo/index.js
index 7d0123e3d3a..65dee7d5fd1 100644
--- a/app/assets/javascripts/repo/index.js
+++ b/app/assets/javascripts/repo/index.js
@@ -1,5 +1,6 @@
 import $ from 'jquery';
 import Vue from 'vue';
+import { convertPermissionToBoolean } from '../lib/utils/common_utils';
 import Service from './services/repo_service';
 import Store from './stores/repo_store';
 import Repo from './components/repo.vue';
@@ -31,8 +32,13 @@ function setInitialStore(data) {
   Store.projectUrl = data.projectUrl;
   Store.canCommit = data.canCommit;
   Store.onTopOfBranch = data.onTopOfBranch;
+  Store.newMrTemplateUrl = decodeURIComponent(data.newMrTemplateUrl);
+  Store.customBranchURL = decodeURIComponent(data.blobUrl);
+  Store.isRoot = convertPermissionToBoolean(data.root);
+  Store.isInitialRoot = convertPermissionToBoolean(data.root);
   Store.currentBranch = $('button.dropdown-menu-toggle').attr('data-ref');
   Store.checkIsCommitable();
+  Store.setBranchHash();
 }
 
 function initRepo(el) {
diff --git a/app/assets/javascripts/repo/services/repo_service.js b/app/assets/javascripts/repo/services/repo_service.js
index 830685f7e6e..d68d71a4629 100644
--- a/app/assets/javascripts/repo/services/repo_service.js
+++ b/app/assets/javascripts/repo/services/repo_service.js
@@ -64,6 +64,10 @@ const RepoService = {
     return urlArray.join('/');
   },
 
+  getBranch() {
+    return Api.branchSingle(Store.projectId, Store.currentBranch);
+  },
+
   commitFiles(payload) {
     return Api.commitMultiple(Store.projectId, payload)
       .then(this.commitFlash);
diff --git a/app/assets/javascripts/repo/stores/repo_store.js b/app/assets/javascripts/repo/stores/repo_store.js
index c633f538c1b..49d7317a17e 100644
--- a/app/assets/javascripts/repo/stores/repo_store.js
+++ b/app/assets/javascripts/repo/stores/repo_store.js
@@ -2,14 +2,13 @@ import Helper from '../helpers/repo_helper';
 import Service from '../services/repo_service';
 
 const RepoStore = {
-  monaco: {},
   monacoLoading: false,
   service: '',
   canCommit: false,
   onTopOfBranch: false,
   editMode: false,
-  isTree: false,
-  isRoot: false,
+  isRoot: null,
+  isInitialRoot: null,
   prevURL: '',
   projectId: '',
   projectName: '',
@@ -23,6 +22,7 @@ const RepoStore = {
     title: '',
     status: false,
   },
+  showNewBranchDialog: false,
   activeFile: Helper.getDefaultActiveFile(),
   activeFileIndex: 0,
   activeLine: -1,
@@ -31,22 +31,27 @@ const RepoStore = {
   isCommitable: false,
   binary: false,
   currentBranch: '',
+  startNewMR: false,
+  currentHash: '',
+  currentShortHash: '',
+  customBranchURL: '',
+  newMrTemplateUrl: '',
+  branchChanged: false,
   commitMessage: '',
-  binaryTypes: {
-    png: false,
-    md: false,
-    svg: false,
-    unknown: false,
-  },
   loading: {
     tree: false,
     blob: false,
   },
 
-  resetBinaryTypes() {
-    Object.keys(RepoStore.binaryTypes).forEach((key) => {
-      RepoStore.binaryTypes[key] = false;
-    });
+  setBranchHash() {
+    return Service.getBranch()
+      .then((data) => {
+        if (RepoStore.currentHash !== '' && data.commit.id !== RepoStore.currentHash) {
+          RepoStore.branchChanged = true;
+        }
+        RepoStore.currentHash = data.commit.id;
+        RepoStore.currentShortHash = data.commit.short_id;
+      });
   },
 
   // mutations
@@ -54,10 +59,6 @@ const RepoStore = {
     RepoStore.isCommitable = RepoStore.onTopOfBranch && RepoStore.canCommit;
   },
 
-  addFilesToDirectory(inDirectory, currentList, newList) {
-    RepoStore.files = Helper.getNewMergedList(inDirectory, currentList, newList);
-  },
-
   toggleRawPreview() {
     RepoStore.activeFile.raw = !RepoStore.activeFile.raw;
     RepoStore.activeFileLabel = RepoStore.activeFile.raw ? 'Display rendered file' : 'Display source';
@@ -111,30 +112,6 @@ const RepoStore = {
     RepoStore.activeFileLabel = 'Display source';
   },
 
-  removeChildFilesOfTree(tree) {
-    let foundTree = false;
-    const treeToClose = tree;
-    let canStopSearching = false;
-    RepoStore.files = RepoStore.files.filter((file) => {
-      const isItTheTreeWeWant = file.url === treeToClose.url;
-      // if it's the next tree
-      if (foundTree && file.type === 'tree' && !isItTheTreeWeWant && file.level === treeToClose.level) {
-        canStopSearching = true;
-        return true;
-      }
-      if (canStopSearching) return true;
-
-      if (isItTheTreeWeWant) foundTree = true;
-
-      if (foundTree) return file.level <= treeToClose.level;
-      return true;
-    });
-
-    treeToClose.opened = false;
-    treeToClose.icon = 'fa-folder';
-    return treeToClose;
-  },
-
   removeFromOpenedFiles(file) {
     if (file.type === 'tree') return;
     let foundIndex;
@@ -168,6 +145,7 @@ const RepoStore = {
     if (openedFilesAlreadyExists) return;
 
     openFile.changed = false;
+    openFile.active = true;
     RepoStore.openedFiles.push(openFile);
   },
 
diff --git a/app/assets/javascripts/shortcuts.js b/app/assets/javascripts/shortcuts.js
index f63b99ba1c5..ebe7a99ffae 100644
--- a/app/assets/javascripts/shortcuts.js
+++ b/app/assets/javascripts/shortcuts.js
@@ -1,128 +1,116 @@
-/* eslint-disable func-names, space-before-function-paren, no-var, prefer-rest-params, wrap-iife, quotes, prefer-arrow-callback, consistent-return, object-shorthand, no-unused-vars, one-var, one-var-declaration-per-line, no-else-return, comma-dangle, max-len */
-/* global Mousetrap */
 import Cookies from 'js-cookie';
 import Mousetrap from 'mousetrap';
-
 import findAndFollowLink from './shortcuts_dashboard_navigation';
 
-(function() {
-  this.Shortcuts = (function() {
-    function Shortcuts(skipResetBindings) {
-      this.onToggleHelp = this.onToggleHelp.bind(this);
-      this.enabledHelp = [];
-      if (!skipResetBindings) {
-        Mousetrap.reset();
-      }
-      Mousetrap.bind('?', this.onToggleHelp);
-      Mousetrap.bind('s', Shortcuts.focusSearch);
-      Mousetrap.bind('f', (e => this.focusFilter(e)));
-      Mousetrap.bind('p b', this.onTogglePerfBar);
-
-      const findFileURL = document.body.dataset.findFile;
-
-      Mousetrap.bind('shift+t', () => findAndFollowLink('.shortcuts-todos'));
-      Mousetrap.bind('shift+a', () => findAndFollowLink('.dashboard-shortcuts-activity'));
-      Mousetrap.bind('shift+i', () => findAndFollowLink('.dashboard-shortcuts-issues'));
-      Mousetrap.bind('shift+m', () => findAndFollowLink('.dashboard-shortcuts-merge_requests'));
-      Mousetrap.bind('shift+p', () => findAndFollowLink('.dashboard-shortcuts-projects'));
-      Mousetrap.bind('shift+g', () => findAndFollowLink('.dashboard-shortcuts-groups'));
-      Mousetrap.bind('shift+l', () => findAndFollowLink('.dashboard-shortcuts-milestones'));
-      Mousetrap.bind('shift+s', () => findAndFollowLink('.dashboard-shortcuts-snippets'));
-
-      Mousetrap.bind(['ctrl+shift+p', 'command+shift+p'], this.toggleMarkdownPreview);
-      if (typeof findFileURL !== "undefined" && findFileURL !== null) {
-        Mousetrap.bind('t', function() {
-          return gl.utils.visitUrl(findFileURL);
-        });
-      }
+const defaultStopCallback = Mousetrap.stopCallback;
+Mousetrap.stopCallback = (e, element, combo) => {
+  if (['ctrl+shift+p', 'command+shift+p'].indexOf(combo) !== -1) {
+    return false;
+  }
+
+  return defaultStopCallback(e, element, combo);
+};
+
+export default class Shortcuts {
+  constructor(skipResetBindings) {
+    this.onToggleHelp = this.onToggleHelp.bind(this);
+    this.enabledHelp = [];
+    if (!skipResetBindings) {
+      Mousetrap.reset();
     }
+    Mousetrap.bind('?', this.onToggleHelp);
+    Mousetrap.bind('s', Shortcuts.focusSearch);
+    Mousetrap.bind('f', this.focusFilter.bind(this));
+    Mousetrap.bind('p b', Shortcuts.onTogglePerfBar);
 
-    Shortcuts.prototype.onToggleHelp = function(e) {
-      e.preventDefault();
-      return Shortcuts.toggleHelp(this.enabledHelp);
-    };
+    const findFileURL = document.body.dataset.findFile;
+
+    Mousetrap.bind('shift+t', () => findAndFollowLink('.shortcuts-todos'));
+    Mousetrap.bind('shift+a', () => findAndFollowLink('.dashboard-shortcuts-activity'));
+    Mousetrap.bind('shift+i', () => findAndFollowLink('.dashboard-shortcuts-issues'));
+    Mousetrap.bind('shift+m', () => findAndFollowLink('.dashboard-shortcuts-merge_requests'));
+    Mousetrap.bind('shift+p', () => findAndFollowLink('.dashboard-shortcuts-projects'));
+    Mousetrap.bind('shift+g', () => findAndFollowLink('.dashboard-shortcuts-groups'));
+    Mousetrap.bind('shift+l', () => findAndFollowLink('.dashboard-shortcuts-milestones'));
+    Mousetrap.bind('shift+s', () => findAndFollowLink('.dashboard-shortcuts-snippets'));
+
+    Mousetrap.bind(['ctrl+shift+p', 'command+shift+p'], Shortcuts.toggleMarkdownPreview);
 
-    Shortcuts.prototype.onTogglePerfBar = function(e) {
+    if (typeof findFileURL !== 'undefined' && findFileURL !== null) {
+      Mousetrap.bind('t', () => {
+        gl.utils.visitUrl(findFileURL);
+      });
+    }
+
+    $(document).on('click.more_help', '.js-more-help-button', function clickMoreHelp(e) {
+      $(this).remove();
+      $('.hidden-shortcut').show();
       e.preventDefault();
-      const performanceBarCookieName = 'perf_bar_enabled';
-      if (Cookies.get(performanceBarCookieName) === 'true') {
-        Cookies.remove(performanceBarCookieName, { path: '/' });
-      } else {
-        Cookies.set(performanceBarCookieName, 'true', { path: '/' });
-      }
-      gl.utils.refreshCurrentPage();
-    };
-
-    Shortcuts.prototype.toggleMarkdownPreview = function(e) {
-      // Check if short-cut was triggered while in Write Mode
-      const $target = $(e.target);
-      const $form = $target.closest('form');
-
-      if ($target.hasClass('js-note-text')) {
-        $('.js-md-preview-button', $form).focus();
-      }
-      return $(document).triggerHandler('markdown-preview:toggle', [e]);
-    };
-
-    Shortcuts.toggleHelp = function(location) {
-      var $modal;
-      $modal = $('#modal-shortcuts');
-      if ($modal.length) {
-        $modal.modal('toggle');
-        return;
-      }
-      return $.ajax({
-        url: gon.shortcuts_path,
-        dataType: 'script',
-        success: function(e) {
-          var i, l, len, results;
-          if (location && location.length > 0) {
-            results = [];
-            for (i = 0, len = location.length; i < len; i += 1) {
-              l = location[i];
-              results.push($(l).show());
-            }
-            return results;
-          } else {
-            $('.hidden-shortcut').show();
-            return $('.js-more-help-button').remove();
+    });
+  }
+
+  onToggleHelp(e) {
+    e.preventDefault();
+    Shortcuts.toggleHelp(this.enabledHelp);
+  }
+
+  static onTogglePerfBar(e) {
+    e.preventDefault();
+    const performanceBarCookieName = 'perf_bar_enabled';
+    if (Cookies.get(performanceBarCookieName) === 'true') {
+      Cookies.remove(performanceBarCookieName, { path: '/' });
+    } else {
+      Cookies.set(performanceBarCookieName, 'true', { path: '/' });
+    }
+    gl.utils.refreshCurrentPage();
+  }
+
+  static toggleMarkdownPreview(e) {
+    // Check if short-cut was triggered while in Write Mode
+    const $target = $(e.target);
+    const $form = $target.closest('form');
+
+    if ($target.hasClass('js-note-text')) {
+      $('.js-md-preview-button', $form).focus();
+    }
+    $(document).triggerHandler('markdown-preview:toggle', [e]);
+  }
+
+  static toggleHelp(location) {
+    const $modal = $('#modal-shortcuts');
+
+    if ($modal.length) {
+      $modal.modal('toggle');
+    }
+
+    $.ajax({
+      url: gon.shortcuts_path,
+      dataType: 'script',
+      success() {
+        if (location && location.length > 0) {
+          const results = [];
+          for (let i = 0, len = location.length; i < len; i += 1) {
+            results.push($(location[i]).show());
           }
+          return results;
         }
-      });
-    };
-
-    Shortcuts.prototype.focusFilter = function(e) {
-      if (this.filterInput == null) {
-        this.filterInput = $('input[type=search]', '.nav-controls');
-      }
-      this.filterInput.focus();
-      return e.preventDefault();
-    };
-
-    Shortcuts.focusSearch = function(e) {
-      $('#search').focus();
-      return e.preventDefault();
-    };
-
-    return Shortcuts;
-  })();
-
-  $(document).on('click.more_help', '.js-more-help-button', function(e) {
-    $(this).remove();
-    $('.hidden-shortcut').show();
-    return e.preventDefault();
-  });
-
-  Mousetrap.stopCallback = (function() {
-    var defaultStopCallback;
-    defaultStopCallback = Mousetrap.stopCallback;
-    return function(e, element, combo) {
-      // allowed shortcuts if textarea, input, contenteditable are focused
-      if (['ctrl+shift+p', 'command+shift+p'].indexOf(combo) !== -1) {
-        return false;
-      } else {
-        return defaultStopCallback.apply(this, arguments);
-      }
-    };
-  })();
-}).call(window);
+
+        $('.hidden-shortcut').show();
+        return $('.js-more-help-button').remove();
+      },
+    });
+  }
+
+  focusFilter(e) {
+    if (!this.filterInput) {
+      this.filterInput = $('input[type=search]', '.nav-controls');
+    }
+    this.filterInput.focus();
+    e.preventDefault();
+  }
+
+  static focusSearch(e) {
+    $('#search').focus();
+    e.preventDefault();
+  }
+}
diff --git a/app/assets/javascripts/shortcuts_blob.js b/app/assets/javascripts/shortcuts_blob.js
index ccbf7c59165..fbc57bb4304 100644
--- a/app/assets/javascripts/shortcuts_blob.js
+++ b/app/assets/javascripts/shortcuts_blob.js
@@ -1,7 +1,6 @@
 /* global Mousetrap */
-/* global Shortcuts */
 
-import './shortcuts';
+import Shortcuts from './shortcuts';
 
 const defaults = {
   skipResetBindings: false,
diff --git a/app/assets/javascripts/shortcuts_find_file.js b/app/assets/javascripts/shortcuts_find_file.js
index b18b6139b35..81286c0010c 100644
--- a/app/assets/javascripts/shortcuts_find_file.js
+++ b/app/assets/javascripts/shortcuts_find_file.js
@@ -1,38 +1,30 @@
-/* eslint-disable func-names, space-before-function-paren, max-len, one-var, no-var, no-restricted-syntax, vars-on-top, no-use-before-define, no-param-reassign, new-cap, no-underscore-dangle, wrap-iife */
 /* global Mousetrap */
-/* global ShortcutsNavigation */
 
-import './shortcuts_navigation';
+import ShortcutsNavigation from './shortcuts_navigation';
 
-(function() {
-  var extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
-    hasProp = {}.hasOwnProperty;
+export default class ShortcutsFindFile extends ShortcutsNavigation {
+  constructor(projectFindFile) {
+    super();
 
-  this.ShortcutsFindFile = (function(superClass) {
-    extend(ShortcutsFindFile, superClass);
+    const oldStopCallback = Mousetrap.stopCallback;
+    this.projectFindFile = projectFindFile;
 
-    function ShortcutsFindFile(projectFindFile) {
-      var _oldStopCallback;
-      this.projectFindFile = projectFindFile;
-      ShortcutsFindFile.__super__.constructor.call(this);
-      _oldStopCallback = Mousetrap.stopCallback;
-      Mousetrap.stopCallback = (function(_this) {
-        // override to fire shortcuts action when focus in textbox
-        return function(event, element, combo) {
-          if (element === _this.projectFindFile.inputElement[0] && (combo === 'up' || combo === 'down' || combo === 'esc' || combo === 'enter')) {
-            // when press up/down key in textbox, cusor prevent to move to home/end
-            event.preventDefault();
-            return false;
-          }
-          return _oldStopCallback(event, element, combo);
-        };
-      })(this);
-      Mousetrap.bind('up', this.projectFindFile.selectRowUp);
-      Mousetrap.bind('down', this.projectFindFile.selectRowDown);
-      Mousetrap.bind('esc', this.projectFindFile.goToTree);
-      Mousetrap.bind('enter', this.projectFindFile.goToBlob);
-    }
+    Mousetrap.stopCallback = (e, element, combo) => {
+      if (
+        element === this.projectFindFile.inputElement[0] &&
+        (combo === 'up' || combo === 'down' || combo === 'esc' || combo === 'enter')
+      ) {
+        // when press up/down key in textbox, cusor prevent to move to home/end
+        event.preventDefault();
+        return false;
+      }
 
-    return ShortcutsFindFile;
-  })(ShortcutsNavigation);
-}).call(window);
+      return oldStopCallback(e, element, combo);
+    };
+
+    Mousetrap.bind('up', this.projectFindFile.selectRowUp);
+    Mousetrap.bind('down', this.projectFindFile.selectRowDown);
+    Mousetrap.bind('esc', this.projectFindFile.goToTree);
+    Mousetrap.bind('enter', this.projectFindFile.goToBlob);
+  }
+}
diff --git a/app/assets/javascripts/shortcuts_issuable.js b/app/assets/javascripts/shortcuts_issuable.js
index 78b257bf192..fc97938e3d1 100644
--- a/app/assets/javascripts/shortcuts_issuable.js
+++ b/app/assets/javascripts/shortcuts_issuable.js
@@ -1,100 +1,74 @@
-/* eslint-disable func-names, space-before-function-paren, max-len, no-var, one-var, no-restricted-syntax, vars-on-top, no-use-before-define, no-param-reassign, new-cap, no-underscore-dangle, wrap-iife, one-var-declaration-per-line, quotes, prefer-arrow-callback, consistent-return, prefer-template, no-mixed-operators */
 /* global Mousetrap */
-/* global ShortcutsNavigation */
 /* global sidebar */
 
 import _ from 'underscore';
 import 'mousetrap';
-import './shortcuts_navigation';
-
-(function() {
-  var extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
-    hasProp = {}.hasOwnProperty;
-
-  this.ShortcutsIssuable = (function(superClass) {
-    extend(ShortcutsIssuable, superClass);
-
-    function ShortcutsIssuable(isMergeRequest) {
-      ShortcutsIssuable.__super__.constructor.call(this);
-      Mousetrap.bind('a', this.openSidebarDropdown.bind(this, 'assignee'));
-      Mousetrap.bind('m', this.openSidebarDropdown.bind(this, 'milestone'));
-      Mousetrap.bind('r', (function(_this) {
-        return function() {
-          _this.replyWithSelectedText(isMergeRequest);
-          return false;
-        };
-      })(this));
-      Mousetrap.bind('e', (function(_this) {
-        return function() {
-          _this.editIssue();
-          return false;
-        };
-      })(this));
-      Mousetrap.bind('l', this.openSidebarDropdown.bind(this, 'labels'));
-      if (isMergeRequest) {
-        this.enabledHelp.push('.hidden-shortcut.merge_requests');
-      } else {
-        this.enabledHelp.push('.hidden-shortcut.issues');
-      }
+import ShortcutsNavigation from './shortcuts_navigation';
+
+export default class ShortcutsIssuable extends ShortcutsNavigation {
+  constructor(isMergeRequest) {
+    super();
+
+    this.$replyField = isMergeRequest ? $('.js-main-target-form #note_note') : $('.js-main-target-form .js-vue-comment-form');
+    this.editBtn = document.querySelector('.issuable-edit');
+
+    Mousetrap.bind('a', () => ShortcutsIssuable.openSidebarDropdown('assignee'));
+    Mousetrap.bind('m', () => ShortcutsIssuable.openSidebarDropdown('milestone'));
+    Mousetrap.bind('l', () => ShortcutsIssuable.openSidebarDropdown('labels'));
+    Mousetrap.bind('r', this.replyWithSelectedText.bind(this));
+    Mousetrap.bind('e', this.editIssue.bind(this));
+
+    if (isMergeRequest) {
+      this.enabledHelp.push('.hidden-shortcut.merge_requests');
+    } else {
+      this.enabledHelp.push('.hidden-shortcut.issues');
     }
+  }
+
+  replyWithSelectedText() {
+    const documentFragment = window.gl.utils.getSelectedFragment();
+
+    if (!documentFragment) {
+      this.$replyField.focus();
+      return false;
+    }
+
+    const el = window.gl.CopyAsGFM.transformGFMSelection(documentFragment.cloneNode(true));
+    const selected = window.gl.CopyAsGFM.nodeToGFM(el);
 
-    ShortcutsIssuable.prototype.replyWithSelectedText = function(isMergeRequest) {
-      var quote, documentFragment, el, selected, separator;
-      let replyField;
-
-      if (isMergeRequest) {
-        replyField = $('.js-main-target-form #note_note');
-      } else {
-        replyField = $('.js-main-target-form .js-vue-comment-form');
-      }
-
-      documentFragment = window.gl.utils.getSelectedFragment();
-      if (!documentFragment) {
-        replyField.focus();
-        return;
-      }
-
-      el = window.gl.CopyAsGFM.transformGFMSelection(documentFragment.cloneNode(true));
-      selected = window.gl.CopyAsGFM.nodeToGFM(el);
-
-      if (selected.trim() === "") {
-        return;
-      }
-      quote = _.map(selected.split("\n"), function(val) {
-        return ("> " + val).trim() + "\n";
-      });
-
-      // If replyField already has some content, add a newline before our quote
-      separator = replyField.val().trim() !== "" && "\n\n" || '';
-      replyField.val(function(a, current) {
-        return current + separator + quote.join('') + "\n";
-      });
-
-      // Trigger autosave
-      replyField.trigger('input').trigger('change');
-
-      // Trigger autosize
-      var event = document.createEvent('Event');
-      event.initEvent('autosize:update', true, false);
-      replyField.get(0).dispatchEvent(event);
-
-      // Focus the input field
-      return replyField.focus();
-    };
-
-    ShortcutsIssuable.prototype.editIssue = function() {
-      var $editBtn;
-      $editBtn = $('.issuable-edit');
-      // Need to click the element as on issues, editing is inline
-      // on merge request, editing is on a different page
-      $editBtn.get(0).click();
-    };
-
-    ShortcutsIssuable.prototype.openSidebarDropdown = function(name) {
-      sidebar.openDropdown(name);
+    if (selected.trim() === '') {
       return false;
-    };
+    }
+
+    const quote = _.map(selected.split('\n'), val => `${(`> ${val}`).trim()}\n`);
+
+    // If replyField already has some content, add a newline before our quote
+    const separator = (this.$replyField.val().trim() !== '' && '\n\n') || '';
+    this.$replyField.val((a, current) => `${current}${separator}${quote.join('')}\n`)
+      .trigger('input')
+      .trigger('change');
+
+    // Trigger autosize
+    const event = document.createEvent('Event');
+    event.initEvent('autosize:update', true, false);
+    this.$replyField.get(0).dispatchEvent(event);
+
+    // Focus the input field
+    this.$replyField.focus();
+
+    return false;
+  }
+
+  editIssue() {
+    // Need to click the element as on issues, editing is inline
+    // on merge request, editing is on a different page
+    this.editBtn.click();
+
+    return false;
+  }
 
-    return ShortcutsIssuable;
-  })(ShortcutsNavigation);
-}).call(window);
+  static openSidebarDropdown(name) {
+    sidebar.openDropdown(name);
+    return false;
+  }
+}
diff --git a/app/assets/javascripts/shortcuts_navigation.js b/app/assets/javascripts/shortcuts_navigation.js
index 55bae0c08a1..b4562701a3e 100644
--- a/app/assets/javascripts/shortcuts_navigation.js
+++ b/app/assets/javascripts/shortcuts_navigation.js
@@ -1,36 +1,27 @@
-/* eslint-disable func-names, space-before-function-paren, max-len, no-var, one-var, no-restricted-syntax, vars-on-top, no-use-before-define, no-param-reassign, new-cap, no-underscore-dangle, wrap-iife, prefer-arrow-callback, consistent-return, no-return-assign */
 /* global Mousetrap */
-/* global Shortcuts */
 
 import findAndFollowLink from './shortcuts_dashboard_navigation';
-import './shortcuts';
+import Shortcuts from './shortcuts';
 
-(function() {
-  var extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
-    hasProp = {}.hasOwnProperty;
+export default class ShortcutsNavigation extends Shortcuts {
+  constructor() {
+    super();
 
-  this.ShortcutsNavigation = (function(superClass) {
-    extend(ShortcutsNavigation, superClass);
+    Mousetrap.bind('g p', () => findAndFollowLink('.shortcuts-project'));
+    Mousetrap.bind('g e', () => findAndFollowLink('.shortcuts-project-activity'));
+    Mousetrap.bind('g f', () => findAndFollowLink('.shortcuts-tree'));
+    Mousetrap.bind('g c', () => findAndFollowLink('.shortcuts-commits'));
+    Mousetrap.bind('g j', () => findAndFollowLink('.shortcuts-builds'));
+    Mousetrap.bind('g n', () => findAndFollowLink('.shortcuts-network'));
+    Mousetrap.bind('g d', () => findAndFollowLink('.shortcuts-repository-charts'));
+    Mousetrap.bind('g i', () => findAndFollowLink('.shortcuts-issues'));
+    Mousetrap.bind('g b', () => findAndFollowLink('.shortcuts-issue-boards'));
+    Mousetrap.bind('g m', () => findAndFollowLink('.shortcuts-merge_requests'));
+    Mousetrap.bind('g t', () => findAndFollowLink('.shortcuts-todos'));
+    Mousetrap.bind('g w', () => findAndFollowLink('.shortcuts-wiki'));
+    Mousetrap.bind('g s', () => findAndFollowLink('.shortcuts-snippets'));
+    Mousetrap.bind('i', () => findAndFollowLink('.shortcuts-new-issue'));
 
-    function ShortcutsNavigation() {
-      ShortcutsNavigation.__super__.constructor.call(this);
-      Mousetrap.bind('g p', () => findAndFollowLink('.shortcuts-project'));
-      Mousetrap.bind('g e', () => findAndFollowLink('.shortcuts-project-activity'));
-      Mousetrap.bind('g f', () => findAndFollowLink('.shortcuts-tree'));
-      Mousetrap.bind('g c', () => findAndFollowLink('.shortcuts-commits'));
-      Mousetrap.bind('g j', () => findAndFollowLink('.shortcuts-builds'));
-      Mousetrap.bind('g n', () => findAndFollowLink('.shortcuts-network'));
-      Mousetrap.bind('g d', () => findAndFollowLink('.shortcuts-repository-charts'));
-      Mousetrap.bind('g i', () => findAndFollowLink('.shortcuts-issues'));
-      Mousetrap.bind('g b', () => findAndFollowLink('.shortcuts-issue-boards'));
-      Mousetrap.bind('g m', () => findAndFollowLink('.shortcuts-merge_requests'));
-      Mousetrap.bind('g t', () => findAndFollowLink('.shortcuts-todos'));
-      Mousetrap.bind('g w', () => findAndFollowLink('.shortcuts-wiki'));
-      Mousetrap.bind('g s', () => findAndFollowLink('.shortcuts-snippets'));
-      Mousetrap.bind('i', () => findAndFollowLink('.shortcuts-new-issue'));
-      this.enabledHelp.push('.hidden-shortcut.project');
-    }
-
-    return ShortcutsNavigation;
-  })(Shortcuts);
-}).call(window);
+    this.enabledHelp.push('.hidden-shortcut.project');
+  }
+}
diff --git a/app/assets/javascripts/shortcuts_network.js b/app/assets/javascripts/shortcuts_network.js
index cc44082efa9..21823085ac4 100644
--- a/app/assets/javascripts/shortcuts_network.js
+++ b/app/assets/javascripts/shortcuts_network.js
@@ -1,28 +1,17 @@
-/* eslint-disable func-names, space-before-function-paren, max-len, no-var, one-var, no-restricted-syntax, vars-on-top, no-use-before-define, no-param-reassign, new-cap, no-underscore-dangle, wrap-iife, max-len */
 /* global Mousetrap */
-/* global ShortcutsNavigation */
+import ShortcutsNavigation from './shortcuts_navigation';
 
-import './shortcuts_navigation';
+export default class ShortcutsNetwork extends ShortcutsNavigation {
+  constructor(graph) {
+    super();
 
-(function() {
-  var extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
-    hasProp = {}.hasOwnProperty;
+    Mousetrap.bind(['left', 'h'], graph.scrollLeft);
+    Mousetrap.bind(['right', 'l'], graph.scrollRight);
+    Mousetrap.bind(['up', 'k'], graph.scrollUp);
+    Mousetrap.bind(['down', 'j'], graph.scrollDown);
+    Mousetrap.bind(['shift+up', 'shift+k'], graph.scrollTop);
+    Mousetrap.bind(['shift+down', 'shift+j'], graph.scrollBottom);
 
-  this.ShortcutsNetwork = (function(superClass) {
-    extend(ShortcutsNetwork, superClass);
-
-    function ShortcutsNetwork(graph) {
-      this.graph = graph;
-      ShortcutsNetwork.__super__.constructor.call(this);
-      Mousetrap.bind(['left', 'h'], this.graph.scrollLeft);
-      Mousetrap.bind(['right', 'l'], this.graph.scrollRight);
-      Mousetrap.bind(['up', 'k'], this.graph.scrollUp);
-      Mousetrap.bind(['down', 'j'], this.graph.scrollDown);
-      Mousetrap.bind(['shift+up', 'shift+k'], this.graph.scrollTop);
-      Mousetrap.bind(['shift+down', 'shift+j'], this.graph.scrollBottom);
-      this.enabledHelp.push('.hidden-shortcut.network');
-    }
-
-    return ShortcutsNetwork;
-  })(ShortcutsNavigation);
-}).call(window);
+    this.enabledHelp.push('.hidden-shortcut.network');
+  }
+}
diff --git a/app/assets/javascripts/shortcuts_wiki.js b/app/assets/javascripts/shortcuts_wiki.js
index 8a075062a48..59b967dbe09 100644
--- a/app/assets/javascripts/shortcuts_wiki.js
+++ b/app/assets/javascripts/shortcuts_wiki.js
@@ -1,7 +1,7 @@
 /* eslint-disable class-methods-use-this */
 /* global Mousetrap */
-/* global ShortcutsNavigation */
 
+import ShortcutsNavigation from './shortcuts_navigation';
 import findAndFollowLink from './shortcuts_dashboard_navigation';
 
 export default class ShortcutsWiki extends ShortcutsNavigation {
diff --git a/app/assets/javascripts/vue_shared/components/popup_dialog.vue b/app/assets/javascripts/vue_shared/components/popup_dialog.vue
index 9279b50cd55..7d8c5936b7d 100644
--- a/app/assets/javascripts/vue_shared/components/popup_dialog.vue
+++ b/app/assets/javascripts/vue_shared/components/popup_dialog.vue
@@ -16,6 +16,11 @@ export default {
       required: false,
       default: 'primary',
     },
+    closeKind: {
+      type: String,
+      required: false,
+      default: 'default',
+    },
     closeButtonLabel: {
       type: String,
       required: false,
@@ -33,6 +38,11 @@ export default {
         [`btn-${this.kind}`]: true,
       };
     },
+    btnCancelKindClass() {
+      return {
+        [`btn-${this.closeKind}`]: true,
+      };
+    },
   },
 
   methods: {
@@ -70,7 +80,8 @@ export default {
       <div class="modal-footer">
         <button
           type="button"
-          class="btn btn-default"
+          class="btn"
+          :class="btnCancelKindClass"
           @click="emitSubmit(false)">
             {{closeButtonLabel}}
         </button>
diff --git a/app/assets/javascripts/vue_shared/components/user_avatar/user_avatar_image.vue b/app/assets/javascripts/vue_shared/components/user_avatar/user_avatar_image.vue
index dd9a2ebb184..1ac61a3c39b 100644
--- a/app/assets/javascripts/vue_shared/components/user_avatar/user_avatar_image.vue
+++ b/app/assets/javascripts/vue_shared/components/user_avatar/user_avatar_image.vue
@@ -7,6 +7,7 @@
   Sample configuration:
 
   <user-avatar-image
+    :lazy="true"
     :img-src="userAvatarSrc"
     :img-alt="tooltipText"
     :tooltip-text="tooltipText"
@@ -16,11 +17,17 @@
 */
 
 import defaultAvatarUrl from 'images/no_avatar.png';
+import { placeholderImage } from '../../../lazy_loader';
 import tooltip from '../../directives/tooltip';
 
 export default {
   name: 'UserAvatarImage',
   props: {
+    lazy: {
+      type: Boolean,
+      required: false,
+      default: false,
+    },
     imgSrc: {
       type: String,
       required: false,
@@ -56,18 +63,21 @@ export default {
     tooltip,
   },
   computed: {
+    // API response sends null when gravatar is disabled and
+    // we provide an empty string when we use it inside user avatar link.
+    // In both cases we should render the defaultAvatarUrl
+    sanitizedSource() {
+      return this.imgSrc === '' || this.imgSrc === null ? defaultAvatarUrl : this.imgSrc;
+    },
+    resultantSrcAttribute() {
+      return this.lazy ? placeholderImage : this.sanitizedSource;
+    },
     tooltipContainer() {
       return this.tooltipText ? 'body' : null;
     },
     avatarSizeClass() {
       return `s${this.size}`;
     },
-    // API response sends null when gravatar is disabled and
-    // we provide an empty string when we use it inside user avatar link.
-    // In both cases we should render the defaultAvatarUrl
-    imageSource() {
-      return this.imgSrc === '' || this.imgSrc === null ? defaultAvatarUrl : this.imgSrc;
-    },
   },
 };
 </script>
@@ -76,11 +86,16 @@ export default {
   <img
     v-tooltip
     class="avatar"
-    :class="[avatarSizeClass, cssClasses]"
-    :src="imageSource"
+    :class="{
+      lazy,
+      [avatarSizeClass]: true,
+      [cssClasses]: true
+    }"
+    :src="resultantSrcAttribute"
     :width="size"
     :height="size"
     :alt="imgAlt"
+    :data-src="sanitizedSource"
     :data-container="tooltipContainer"
     :data-placement="tooltipPlacement"
     :title="tooltipText"
diff --git a/app/assets/javascripts/zen_mode.js b/app/assets/javascripts/zen_mode.js
index 99c7644e4d9..cba7b9227cd 100644
--- a/app/assets/javascripts/zen_mode.js
+++ b/app/assets/javascripts/zen_mode.js
@@ -11,8 +11,6 @@ import Dropzone from 'dropzone';
 import 'mousetrap';
 import 'mousetrap/plugins/pause/mousetrap-pause';
 
-window.Dropzone = Dropzone;
-
 //
 // ### Events
 //
diff --git a/app/assets/stylesheets/framework.scss b/app/assets/stylesheets/framework.scss
index 0d7a5cba928..aa61ddc6a2c 100644
--- a/app/assets/stylesheets/framework.scss
+++ b/app/assets/stylesheets/framework.scss
@@ -7,6 +7,7 @@
 @import "framework/animations";
 @import "framework/avatar";
 @import "framework/asciidoctor";
+@import "framework/banner";
 @import "framework/blocks";
 @import "framework/buttons";
 @import "framework/badges";
diff --git a/app/assets/stylesheets/framework/animations.scss b/app/assets/stylesheets/framework/animations.scss
index f0e6b23757f..81439c0d2fe 100644
--- a/app/assets/stylesheets/framework/animations.scss
+++ b/app/assets/stylesheets/framework/animations.scss
@@ -23,6 +23,11 @@
     @include webkit-prefix(animation-duration, 2s);
   }
 
+  &.spin {
+    transform-origin: center;
+    animation: spin 4s linear infinite;
+  }
+
   &.flipOutX,
   &.flipOutY,
   &.bounceIn,
@@ -198,6 +203,13 @@ a {
     height: 12px;
   }
 
+  &.animation-container-right {
+    .skeleton-line-2 {
+      left: 0;
+      right: 150px;
+    }
+  }
+
   &::before {
     animation-duration: 1s;
     animation-fill-mode: forwards;
@@ -264,3 +276,9 @@ a {
     transform: translateX(468px);
   }
 }
+
+@keyframes spin {
+  100% {
+    transform: rotate(360deg);
+  }
+}
diff --git a/app/assets/stylesheets/framework/banner.scss b/app/assets/stylesheets/framework/banner.scss
new file mode 100644
index 00000000000..6433b0c7855
--- /dev/null
+++ b/app/assets/stylesheets/framework/banner.scss
@@ -0,0 +1,25 @@
+.banner-callout {
+  display: flex;
+  position: relative;
+  flex-wrap: wrap;
+
+  .banner-close {
+    position: absolute;
+    top: 10px;
+    right: 10px;
+    opacity: 1;
+
+    .dismiss-icon {
+      color: $gl-text-color;
+      font-size: $gl-font-size;
+    }
+  }
+
+  .banner-graphic {
+    margin: 20px auto;
+  }
+
+  &.banner-non-empty-state {
+    border-bottom: 1px solid $border-color;
+  }
+}
diff --git a/app/assets/stylesheets/framework/dropdowns.scss b/app/assets/stylesheets/framework/dropdowns.scss
index 9dcf332eee2..a9d804e735d 100644
--- a/app/assets/stylesheets/framework/dropdowns.scss
+++ b/app/assets/stylesheets/framework/dropdowns.scss
@@ -838,6 +838,7 @@
         a {
           padding: 8px 40px;
 
+          &.is-indeterminate::before,
           &.is-active::before {
             left: 16px;
           }
diff --git a/app/assets/stylesheets/framework/files.scss b/app/assets/stylesheets/framework/files.scss
index 588ec1ff3bc..5833ef939e9 100644
--- a/app/assets/stylesheets/framework/files.scss
+++ b/app/assets/stylesheets/framework/files.scss
@@ -10,6 +10,10 @@
     border: 0;
   }
 
+  &.file-holder-bottom-radius {
+    border-radius: 0 0 $border-radius-small $border-radius-small;
+  }
+
   &.readme-holder {
     margin: $gl-padding 0;
 
diff --git a/app/assets/stylesheets/framework/lists.scss b/app/assets/stylesheets/framework/lists.scss
index badc7b0eba3..d43f998cb82 100644
--- a/app/assets/stylesheets/framework/lists.scss
+++ b/app/assets/stylesheets/framework/lists.scss
@@ -281,6 +281,57 @@ ul.indent-list {
 
 
 // Specific styles for tree list
+@keyframes spin-avatar {
+  from { transform: rotate(0deg); }
+  to { transform: rotate(360deg); }
+}
+
+.groups-list-tree-container {
+  .has-no-search-results {
+    text-align: center;
+    padding: $gl-padding;
+    font-style: italic;
+    color: $well-light-text-color;
+  }
+
+  > .group-list-tree > .group-row.has-children:first-child {
+    border-top: none;
+  }
+}
+
+.group-list-tree .avatar-container.content-loading {
+  position: relative;
+
+  > a,
+  > a .avatar {
+    height: 100%;
+    border-radius: 50%;
+  }
+
+  > a {
+    padding: 2px;
+  }
+
+  > a .avatar {
+    border: 2px solid $white-normal;
+
+    &.identicon {
+      line-height: 30px;
+    }
+  }
+
+  &::after {
+    content: "";
+    position: absolute;
+    height: 100%;
+    width: 100%;
+    background-color: transparent;
+    border: 2px outset $kdb-border;
+    border-radius: 50%;
+    animation: spin-avatar 3s infinite linear;
+  }
+}
+
 .group-list-tree {
   .folder-toggle-wrap {
     float: left;
@@ -293,7 +344,7 @@ ul.indent-list {
   }
 
   .folder-caret,
-  .folder-icon {
+  .item-type-icon {
     display: inline-block;
   }
 
@@ -301,11 +352,11 @@ ul.indent-list {
     width: 15px;
   }
 
-  .folder-icon {
+  .item-type-icon {
     width: 20px;
   }
 
-  > .group-row:not(.has-subgroups) {
+  > .group-row:not(.has-children) {
     .folder-caret .fa {
       opacity: 0;
     }
@@ -351,12 +402,23 @@ ul.indent-list {
         top: 30px;
         bottom: 0;
       }
+
+      &.being-removed {
+        opacity: 0.5;
+      }
     }
   }
 
   .group-row {
     padding: 0;
-    border: none;
+
+    &.has-children {
+      border-top: none;
+    }
+
+    &:first-child {
+      border-top: 1px solid $white-normal;
+    }
 
     &:last-of-type {
       .group-row-contents:not(:hover) {
@@ -379,6 +441,25 @@ ul.indent-list {
     .avatar-container > a {
       width: 100%;
     }
+
+    &.has-more-items {
+      display: block;
+      padding: 20px 10px;
+    }
+  }
+}
+
+ul.group-list-tree {
+  li.group-row {
+    &.has-description {
+      .title {
+        line-height: inherit;
+      }
+    }
+
+    .title {
+      line-height: $list-text-height;
+    }
   }
 }
 
diff --git a/app/assets/stylesheets/framework/new-sidebar.scss b/app/assets/stylesheets/framework/new-sidebar.scss
index 78972717932..7a309f2c8a1 100644
--- a/app/assets/stylesheets/framework/new-sidebar.scss
+++ b/app/assets/stylesheets/framework/new-sidebar.scss
@@ -6,7 +6,7 @@ $active-background: rgba(0, 0, 0, .04);
 $active-hover-background: $active-background;
 $active-hover-color: $gl-text-color;
 $inactive-badge-background: rgba(0, 0, 0, .08);
-$hover-background: $white-light;
+$hover-background: rgba(0, 0, 0, .06);
 $hover-color: $gl-text-color;
 $inactive-color: $gl-text-color-secondary;
 $new-sidebar-width: 220px;
@@ -330,7 +330,7 @@ $new-sidebar-collapsed-width: 50px;
 
     &.active > a:hover,
     &.is-over > a {
-      background-color: $white-light;
+      background-color: $hover-background;
     }
   }
 }
@@ -344,7 +344,7 @@ $new-sidebar-collapsed-width: 50px;
   position: fixed;
   bottom: 0;
   padding: 16px;
-  background-color: $gray-normal;
+  background-color: $gray-light;
   border: 0;
   border-top: 2px solid $border-color;
   color: $gl-text-color-secondary;
@@ -466,7 +466,7 @@ $new-sidebar-collapsed-width: 50px;
 
   @media (max-width: $screen-xs-max) {
     + .breadcrumbs-links {
-      padding-left: 17px;
+      padding-left: $gl-padding;
       border-left: 1px solid $gl-text-color-quaternary;
     }
   }
diff --git a/app/assets/stylesheets/framework/selects.scss b/app/assets/stylesheets/framework/selects.scss
index 58f6e62b06a..621eec4f158 100644
--- a/app/assets/stylesheets/framework/selects.scss
+++ b/app/assets/stylesheets/framework/selects.scss
@@ -64,6 +64,10 @@
   z-index: 999;
 }
 
+.select2-drop-mask {
+  z-index: 998;
+}
+
 .select2-drop.select2-drop-above.select2-drop-active {
   border-top: 1px solid $dropdown-border-color;
   margin-top: -6px;
diff --git a/app/assets/stylesheets/framework/tooltips.scss b/app/assets/stylesheets/framework/tooltips.scss
index 93baf73cb78..98f28987a82 100644
--- a/app/assets/stylesheets/framework/tooltips.scss
+++ b/app/assets/stylesheets/framework/tooltips.scss
@@ -3,5 +3,5 @@
   border-radius: $border-radius-default;
   line-height: 16px;
   font-weight: $gl-font-weight-normal;
-  padding: $gl-btn-padding;
+  padding: 8px;
 }
diff --git a/app/assets/stylesheets/framework/variables.scss b/app/assets/stylesheets/framework/variables.scss
index 089a67a7c98..d5ca23ff870 100644
--- a/app/assets/stylesheets/framework/variables.scss
+++ b/app/assets/stylesheets/framework/variables.scss
@@ -233,6 +233,7 @@ $container-text-max-width: 540px;
 $gl-avatar-size: 40px;
 $error-exclamation-point: $red-500;
 $border-radius-default: 4px;
+$border-radius-small: 2px;
 $settings-icon-size: 18px;
 $provider-btn-not-active-color: $blue-500;
 $link-underline-blue: $blue-500;
diff --git a/app/assets/stylesheets/pages/clusters.scss b/app/assets/stylesheets/pages/clusters.scss
index 5538e46a6c4..8d6f30e3b84 100644
--- a/app/assets/stylesheets/pages/clusters.scss
+++ b/app/assets/stylesheets/pages/clusters.scss
@@ -4,6 +4,6 @@
   }
 
   .alert-block {
-    margin-bottom: 20px;
+    margin-bottom: 10px;
   }
 }
diff --git a/app/assets/stylesheets/pages/diff.scss b/app/assets/stylesheets/pages/diff.scss
index ffb5fc94475..09f831dcb29 100644
--- a/app/assets/stylesheets/pages/diff.scss
+++ b/app/assets/stylesheets/pages/diff.scss
@@ -707,11 +707,11 @@
 
 .frame.click-to-comment {
   position: relative;
-  cursor: url(icon_image_comment.svg)
+  cursor: image-url('icon_image_comment.svg')
     $image-comment-cursor-left-offset $image-comment-cursor-top-offset, auto;
 
   // Retina cursor
-  cursor: -webkit-image-set(url(icon_image_comment.svg) 1x, url(icon_image_comment@2x.svg) 2x)
+  cursor: -webkit-image-set(image-url('icon_image_comment.svg') 1x, image-url('icon_image_comment@2x.svg') 2x)
     $image-comment-cursor-left-offset $image-comment-cursor-top-offset, auto;
 
   .comment-indicator {
diff --git a/app/assets/stylesheets/pages/editor.scss b/app/assets/stylesheets/pages/editor.scss
index d3cd4d507de..edfafa79c44 100644
--- a/app/assets/stylesheets/pages/editor.scss
+++ b/app/assets/stylesheets/pages/editor.scss
@@ -4,7 +4,7 @@
     border-right: 1px solid $border-color;
     border-left: 1px solid $border-color;
     border-bottom: none;
-    border-radius: 2px;
+    border-radius: $border-radius-small $border-radius-small 0 0;
     background: $gray-normal;
   }
 
diff --git a/app/assets/stylesheets/pages/groups.scss b/app/assets/stylesheets/pages/groups.scss
index 6f6c6839975..9b7dda9b648 100644
--- a/app/assets/stylesheets/pages/groups.scss
+++ b/app/assets/stylesheets/pages/groups.scss
@@ -26,14 +26,117 @@
   }
 }
 
-.groups-header {
-  @media (min-width: $screen-sm-min) {
-    .nav-links {
-      width: 35%;
+.group-nav-container .nav-controls {
+  display: flex;
+  align-items: flex-start;
+  padding: $gl-padding-top 0;
+  border-bottom: 1px solid $border-color;
+
+  .group-filter-form {
+    flex: 1;
+  }
+
+  .dropdown-menu-align-right {
+    margin-top: 0;
+  }
+
+  .new-project-subgroup {
+    .dropdown-primary {
+      min-width: 115px;
+    }
+
+    .dropdown-toggle {
+      .dropdown-btn-icon {
+        pointer-events: none;
+        color: inherit;
+        margin-left: 0;
+      }
     }
 
-    .nav-controls {
-      width: 65%;
+    .dropdown-menu {
+      min-width: 280px;
+      margin-top: 2px;
+    }
+
+    li:not(.divider) {
+      padding: 0;
+
+      &.droplab-item-selected {
+        .icon-container {
+          .list-item-checkmark {
+            visibility: visible;
+          }
+        }
+      }
+
+      .menu-item {
+        padding: 8px 4px;
+
+        &:hover {
+          background-color: $gray-darker;
+          color: $theme-gray-900;
+        }
+      }
+
+      .icon-container {
+        float: left;
+        padding-left: 6px;
+
+        .list-item-checkmark {
+          visibility: hidden;
+        }
+      }
+
+      .description {
+        font-size: 14px;
+
+        strong {
+          display: block;
+          font-weight: $gl-font-weight-bold;
+        }
+      }
+    }
+  }
+
+  @media (max-width: $screen-sm-max) {
+    &,
+    .dropdown,
+    .dropdown .dropdown-toggle,
+    .btn-new {
+      display: block;
+    }
+
+    .group-filter-form,
+    .dropdown {
+      margin-bottom: 10px;
+      margin-right: 0;
+    }
+
+    .group-filter-form,
+    .dropdown .dropdown-toggle,
+    .btn-new {
+      width: 100%;
+    }
+
+    .dropdown .dropdown-toggle .fa-chevron-down {
+      position: absolute;
+      top: 11px;
+      right: 8px;
+    }
+
+    .new-project-subgroup {
+      display: flex;
+      align-items: flex-start;
+
+      .dropdown-primary {
+        flex: 1;
+      }
+
+      .dropdown-menu {
+        width: 100%;
+        max-width: inherit;
+        min-width: inherit;
+      }
     }
   }
 }
diff --git a/app/assets/stylesheets/pages/issuable.scss b/app/assets/stylesheets/pages/issuable.scss
index dae3ec7ac42..48532503263 100644
--- a/app/assets/stylesheets/pages/issuable.scss
+++ b/app/assets/stylesheets/pages/issuable.scss
@@ -72,12 +72,22 @@
     }
   }
 
+  .title-container {
+    display: flex;
+  }
+
   .title {
     padding: 0;
     margin-bottom: 16px;
     border-bottom: none;
   }
 
+  .btn-edit {
+    margin-left: auto;
+    // Set height to match title height
+    height: 2em;
+  }
+
   // Border around images in issue and MR descriptions.
   .description img:not(.emoji) {
     border: 1px solid $white-normal;
@@ -117,7 +127,7 @@
 }
 
 .right-sidebar {
-  a,
+  a:not(.btn-retry),
   .btn-link {
     color: inherit;
   }
@@ -459,7 +469,7 @@
     }
   }
 
-  a {
+  a:not(.btn-retry) {
     &:hover {
       color: $md-link-color;
       text-decoration: none;
diff --git a/app/assets/stylesheets/pages/notes.scss b/app/assets/stylesheets/pages/notes.scss
index 96b7db3b85d..ebad429c2ba 100644
--- a/app/assets/stylesheets/pages/notes.scss
+++ b/app/assets/stylesheets/pages/notes.scss
@@ -531,14 +531,13 @@ ul.notes {
   padding: 0;
   min-width: 16px;
   color: $gray-darkest;
+  fill: $gray-darkest;
 
   .fa {
     position: relative;
     font-size: 16px;
   }
 
-
-
   svg {
     height: 16px;
     width: 16px;
@@ -566,6 +565,7 @@ ul.notes {
 
     .link-highlight {
       color: $gl-link-color;
+      fill: $gl-link-color;
 
       svg {
         fill: $gl-link-color;
diff --git a/app/assets/stylesheets/pages/repo.scss b/app/assets/stylesheets/pages/repo.scss
index c36fe25f74d..ea37ccf5e3d 100644
--- a/app/assets/stylesheets/pages/repo.scss
+++ b/app/assets/stylesheets/pages/repo.scss
@@ -153,28 +153,13 @@
       overflow-x: auto;
 
       li {
-        animation: swipeRightAppear ease-in 0.1s;
-        animation-iteration-count: 1;
-        transform-origin: 0% 50%;
-        list-style-type: none;
+        position: relative;
         background: $gray-normal;
-        display: inline-block;
         padding: #{$gl-padding / 2} $gl-padding;
         border-right: 1px solid $white-dark;
         border-bottom: 1px solid $white-dark;
-        white-space: nowrap;
         cursor: pointer;
 
-        &.remove {
-          animation: swipeRightDissapear ease-in 0.1s;
-          animation-iteration-count: 1;
-          transform-origin: 0% 50%;
-
-          a {
-            width: 0;
-          }
-        }
-
         &.active {
           background: $white-light;
           border-bottom: none;
@@ -182,17 +167,21 @@
 
         a {
           @include str-truncated(100px);
-          color: $black;
+          color: $gl-text-color;
           vertical-align: middle;
           text-decoration: none;
           margin-right: 12px;
+        }
 
-          &.close {
-            width: auto;
-            font-size: 15px;
-            opacity: 1;
-            margin-right: -6px;
-          }
+        .close-btn {
+          position: absolute;
+          right: 8px;
+          top: 50%;
+          padding: 0;
+          background: none;
+          border: 0;
+          font-size: $gl-font-size;
+          transform: translateY(-50%);
         }
 
         .close-icon:hover {
@@ -201,9 +190,6 @@
 
         .close-icon,
         .unsaved-icon {
-          float: right;
-          margin-top: 3px;
-          margin-left: 15px;
           color: $gray-darkest;
         }
 
@@ -222,9 +208,7 @@
 
     #repo-file-buttons {
       background-color: $white-light;
-      border-bottom: 1px solid $white-normal;
       padding: 5px 10px;
-      position: relative;
       border-top: 1px solid $white-normal;
     }
 
@@ -287,37 +271,23 @@
       overflow: auto;
     }
 
-    table {
+    .table {
       margin-bottom: 0;
     }
 
     tr {
-      animation: fadein 0.5s;
-      cursor: pointer;
-
-      &.repo-file-options td {
-        padding: 0;
-        border-top: none;
-        background: $gray-light;
+      .repo-file-options {
+        padding: 2px 16px;
         width: 100%;
-        display: inline-block;
-
-        &:first-child {
-          border-top-left-radius: 2px;
-        }
+      }
 
-        .title {
-          display: inline-block;
-          font-size: 10px;
-          text-transform: uppercase;
-          font-weight: $gl-font-weight-bold;
-          color: $gray-darkest;
-          white-space: nowrap;
-          overflow: hidden;
-          text-overflow: ellipsis;
-          vertical-align: middle;
-          padding: 2px 16px;
-        }
+      .title {
+        font-size: 10px;
+        text-transform: uppercase;
+        white-space: nowrap;
+        overflow: hidden;
+        text-overflow: ellipsis;
+        vertical-align: middle;
       }
 
       .file-icon {
@@ -329,11 +299,13 @@
       }
     }
 
+    .file {
+      cursor: pointer;
+    }
+
     a {
       @include str-truncated(250px);
       color: $almost-black;
-      display: inline-block;
-      vertical-align: middle;
     }
   }
 }
diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index 967fe39256a..391a0519195 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -349,6 +349,6 @@ class ApplicationController < ActionController::Base
 
   def set_page_title_header
     # Per https://tools.ietf.org/html/rfc5987, headers need to be ISO-8859-1, not UTF-8
-    response.headers['Page-Title'] = page_title('GitLab').encode('ISO-8859-1')
+    response.headers['Page-Title'] = URI.escape(page_title('GitLab'))
   end
 end
diff --git a/app/controllers/concerns/group_tree.rb b/app/controllers/concerns/group_tree.rb
new file mode 100644
index 00000000000..9d4f97aa443
--- /dev/null
+++ b/app/controllers/concerns/group_tree.rb
@@ -0,0 +1,24 @@
+module GroupTree
+  def render_group_tree(groups)
+    @groups = if params[:filter].present?
+                Gitlab::GroupHierarchy.new(groups.search(params[:filter]))
+                  .base_and_ancestors
+              else
+                # Only show root groups if no parent-id is given
+                groups.where(parent_id: params[:parent_id])
+              end
+    @groups = @groups.with_selects_for_list(archived: params[:archived])
+                .sort(@sort = params[:sort])
+                .page(params[:page])
+
+    respond_to do |format|
+      format.html
+      format.json do
+        serializer = GroupChildSerializer.new(current_user: current_user)
+                       .with_pagination(request, response)
+        serializer.expand_hierarchy if params[:filter].present?
+        render json: serializer.represent(@groups)
+      end
+    end
+  end
+end
diff --git a/app/controllers/dashboard/groups_controller.rb b/app/controllers/dashboard/groups_controller.rb
index 7ed18fb481c..025769f512a 100644
--- a/app/controllers/dashboard/groups_controller.rb
+++ b/app/controllers/dashboard/groups_controller.rb
@@ -1,33 +1,8 @@
 class Dashboard::GroupsController < Dashboard::ApplicationController
-  def index
-    @sort = params[:sort] || 'created_desc'
-
-    @groups =
-      if params[:parent_id] && Group.supports_nested_groups?
-        parent = Group.find_by(id: params[:parent_id])
-
-        if can?(current_user, :read_group, parent)
-          GroupsFinder.new(current_user, parent: parent).execute
-        else
-          Group.none
-        end
-      else
-        current_user.groups
-      end
+  include GroupTree
 
-    @groups = @groups.search(params[:filter_groups]) if params[:filter_groups].present?
-    @groups = @groups.includes(:route)
-    @groups = @groups.sort(@sort)
-    @groups = @groups.page(params[:page])
-
-    respond_to do |format|
-      format.html
-      format.json do
-        render json: GroupSerializer
-          .new(current_user: @current_user)
-          .with_pagination(request, response)
-          .represent(@groups)
-      end
-    end
+  def index
+    groups = GroupsFinder.new(current_user, all_available: false).execute
+    render_group_tree(groups)
   end
 end
diff --git a/app/controllers/explore/groups_controller.rb b/app/controllers/explore/groups_controller.rb
index 81883c543ba..fa0a0f68fbc 100644
--- a/app/controllers/explore/groups_controller.rb
+++ b/app/controllers/explore/groups_controller.rb
@@ -1,17 +1,7 @@
 class Explore::GroupsController < Explore::ApplicationController
-  def index
-    @groups = GroupsFinder.new(current_user).execute
-    @groups = @groups.search(params[:filter_groups]) if params[:filter_groups].present?
-    @groups = @groups.sort(@sort = params[:sort])
-    @groups = @groups.page(params[:page])
+  include GroupTree
 
-    respond_to do |format|
-      format.html
-      format.json do
-        render json: {
-          html: view_to_html_string("explore/groups/_groups", locals: { groups: @groups })
-        }
-      end
-    end
+  def index
+    render_group_tree GroupsFinder.new(current_user).execute
   end
 end
diff --git a/app/controllers/groups/children_controller.rb b/app/controllers/groups/children_controller.rb
new file mode 100644
index 00000000000..b474f5d15ee
--- /dev/null
+++ b/app/controllers/groups/children_controller.rb
@@ -0,0 +1,39 @@
+module Groups
+  class ChildrenController < Groups::ApplicationController
+    before_action :group
+
+    def index
+      parent = if params[:parent_id].present?
+                 GroupFinder.new(current_user).execute(id: params[:parent_id])
+               else
+                 @group
+               end
+
+      if parent.nil?
+        render_404
+        return
+      end
+
+      setup_children(parent)
+
+      respond_to do |format|
+        format.json do
+          serializer = GroupChildSerializer
+                         .new(current_user: current_user)
+                         .with_pagination(request, response)
+          serializer.expand_hierarchy(parent) if params[:filter].present?
+          render json: serializer.represent(@children)
+        end
+      end
+    end
+
+    protected
+
+    def setup_children(parent)
+      @children = GroupDescendantsFinder.new(current_user: current_user,
+                                             parent_group: parent,
+                                             params: params).execute
+      @children = @children.page(params[:page])
+    end
+  end
+end
diff --git a/app/controllers/groups_controller.rb b/app/controllers/groups_controller.rb
index a962d82e3b5..bc3e95f1aed 100644
--- a/app/controllers/groups_controller.rb
+++ b/app/controllers/groups_controller.rb
@@ -46,15 +46,11 @@ class GroupsController < Groups::ApplicationController
   end
 
   def show
-    setup_projects
-
     respond_to do |format|
-      format.html
-
-      format.json do
-        render json: {
-          html: view_to_html_string("dashboard/projects/_projects", locals: { projects: @projects })
-        }
+      format.html do
+        @has_children = GroupDescendantsFinder.new(current_user: current_user,
+                                                   parent_group: @group,
+                                                   params: params).has_children?
       end
 
       format.atom do
@@ -64,13 +60,6 @@ class GroupsController < Groups::ApplicationController
     end
   end
 
-  def subgroups
-    return not_found unless Group.supports_nested_groups?
-
-    @nested_groups = GroupsFinder.new(current_user, parent: group).execute
-    @nested_groups = @nested_groups.search(params[:filter_groups]) if params[:filter_groups].present?
-  end
-
   def activity
     respond_to do |format|
       format.html
@@ -107,20 +96,6 @@ class GroupsController < Groups::ApplicationController
 
   protected
 
-  def setup_projects
-    set_non_archived_param
-    params[:sort] ||= 'latest_activity_desc'
-    @sort = params[:sort]
-
-    options = {}
-    options[:only_owned] = true if params[:shared] == '0'
-    options[:only_shared] = true if params[:shared] == '1'
-
-    @projects = GroupProjectsFinder.new(params: params, group: group, options: options, current_user: current_user).execute
-    @projects = @projects.includes(:namespace)
-    @projects = @projects.page(params[:page]) if params[:name].blank?
-  end
-
   def authorize_create_group!
     allowed = if params[:parent_id].present?
                 parent = Group.find_by(id: params[:parent_id])
@@ -166,6 +141,17 @@ class GroupsController < Groups::ApplicationController
   end
 
   def load_events
+    params[:sort] ||= 'latest_activity_desc'
+
+    options = {}
+    options[:only_owned] = true if params[:shared] == '0'
+    options[:only_shared] = true if params[:shared] == '1'
+
+    @projects = GroupProjectsFinder.new(params: params, group: group, options: options, current_user: current_user)
+                  .execute
+                  .includes(:namespace)
+                  .page(params[:page])
+
     @events = EventCollection
       .new(@projects, offset: params[:offset].to_i, filter: event_filter)
       .to_a
diff --git a/app/controllers/projects/application_controller.rb b/app/controllers/projects/application_controller.rb
index d7dd8ddcb7d..9e79852e378 100644
--- a/app/controllers/projects/application_controller.rb
+++ b/app/controllers/projects/application_controller.rb
@@ -2,7 +2,6 @@ class Projects::ApplicationController < ApplicationController
   include RoutableActions
 
   skip_before_action :authenticate_user!
-  before_action :redirect_git_extension
   before_action :project
   before_action :repository
   layout 'project'
@@ -11,15 +10,6 @@ class Projects::ApplicationController < ApplicationController
 
   private
 
-  def redirect_git_extension
-    # Redirect from
-    #   localhost/group/project.git
-    # to
-    #   localhost/group/project
-    #
-    redirect_to url_for(params.merge(format: nil)) if params[:format] == 'git'
-  end
-
   def project
     return @project if @project
     return nil unless params[:project_id] || params[:id]
diff --git a/app/controllers/projects/commits_controller.rb b/app/controllers/projects/commits_controller.rb
index 4a841bf2073..d48284a4429 100644
--- a/app/controllers/projects/commits_controller.rb
+++ b/app/controllers/projects/commits_controller.rb
@@ -48,6 +48,8 @@ class Projects::CommitsController < Projects::ApplicationController
   private
 
   def set_commits
+    render_404 unless request.format == :atom || @repository.blob_at(@commit.id, @path) || @repository.tree(@commit.id, @path).entries.present?
+
     @limit, @offset = (params[:limit] || 40).to_i, (params[:offset] || 0).to_i
     search = params[:search]
 
diff --git a/app/controllers/projects/merge_requests/conflicts_controller.rb b/app/controllers/projects/merge_requests/conflicts_controller.rb
index 28afef101a9..366524b0783 100644
--- a/app/controllers/projects/merge_requests/conflicts_controller.rb
+++ b/app/controllers/projects/merge_requests/conflicts_controller.rb
@@ -53,7 +53,7 @@ class Projects::MergeRequests::ConflictsController < Projects::MergeRequests::Ap
       flash[:notice] = 'All merge conflicts were resolved. The merge request can now be merged.'
 
       render json: { redirect_to: project_merge_request_url(@project, @merge_request, resolved_conflicts: true) }
-    rescue Gitlab::Conflict::ResolutionError => e
+    rescue Gitlab::Git::Conflict::Resolver::ResolutionError => e
       render status: :bad_request, json: { message: e.message }
     end
   end
diff --git a/app/controllers/projects/tree_controller.rb b/app/controllers/projects/tree_controller.rb
index f3719059f88..756f7e5df8c 100644
--- a/app/controllers/projects/tree_controller.rb
+++ b/app/controllers/projects/tree_controller.rb
@@ -36,6 +36,7 @@ class Projects::TreeController < Projects::ApplicationController
 
       format.json do
         page_title @path.presence || _("Files"), @ref, @project.name_with_namespace
+        response.header['is-root'] = @path.empty?
 
         # n+1: https://gitlab.com/gitlab-org/gitlab-ce/issues/38261
         Gitlab::GitalyClient.allow_n_plus_1_calls do
diff --git a/app/controllers/projects_controller.rb b/app/controllers/projects_controller.rb
index e90b75672ae..db543d688a0 100644
--- a/app/controllers/projects_controller.rb
+++ b/app/controllers/projects_controller.rb
@@ -4,6 +4,7 @@ class ProjectsController < Projects::ApplicationController
   include PreviewMarkdown
 
   before_action :authenticate_user!, except: [:index, :show, :activity, :refs]
+  before_action :redirect_git_extension, only: [:show]
   before_action :project, except: [:index, :new, :create]
   before_action :repository, except: [:index, :new, :create]
   before_action :assign_ref_vars, only: [:show], if: :repo_exists?
@@ -125,7 +126,7 @@ class ProjectsController < Projects::ApplicationController
     return access_denied! unless can?(current_user, :remove_project, @project)
 
     ::Projects::DestroyService.new(@project, current_user, {}).async_execute
-    flash[:alert] = _("Project '%{project_name}' will be deleted.") % { project_name: @project.name_with_namespace }
+    flash[:notice] = _("Project '%{project_name}' is in the process of being deleted.") % { project_name: @project.name_with_namespace }
 
     redirect_to dashboard_projects_path, status: 302
   rescue Projects::DestroyService::DestroyError => ex
@@ -389,4 +390,13 @@ class ProjectsController < Projects::ApplicationController
   def project_export_enabled
     render_404 unless current_application_settings.project_export_enabled?
   end
+
+  def redirect_git_extension
+    # Redirect from
+    #   localhost/group/project.git
+    # to
+    #   localhost/group/project
+    #
+    redirect_to request.original_url.sub(/\.git\/?\Z/, '') if params[:format] == 'git'
+  end
 end
diff --git a/app/finders/group_descendants_finder.rb b/app/finders/group_descendants_finder.rb
new file mode 100644
index 00000000000..1a5f6063437
--- /dev/null
+++ b/app/finders/group_descendants_finder.rb
@@ -0,0 +1,153 @@
+# GroupDescendantsFinder
+#
+# Used to find and filter all subgroups and projects of a passed parent group
+# visible to a specified user.
+#
+# When passing a `filter` param, the search is performed over all nested levels
+# of the `parent_group`. All ancestors for a search result are loaded
+#
+# Arguments:
+#   current_user: The user for which the children should be visible
+#   parent_group: The group to find children of
+#   params:
+#     Supports all params that the `ProjectsFinder` and `GroupProjectsFinder`
+#     support.
+#
+#     filter: string - is aliased to `search` for consistency with the frontend
+#     archived: string - `only` or `true`.
+#                        `non_archived` is passed to the `ProjectFinder`s if none
+#                        was given.
+class GroupDescendantsFinder
+  attr_reader :current_user, :parent_group, :params
+
+  def initialize(current_user: nil, parent_group:, params: {})
+    @current_user = current_user
+    @parent_group = parent_group
+    @params = params.reverse_merge(non_archived: params[:archived].blank?)
+  end
+
+  def execute
+    # The children array might be extended with the ancestors of projects when
+    # filtering. In that case, take the maximum so the array does not get limited
+    # Otherwise, allow paginating through all results
+    #
+    all_required_elements = children
+    all_required_elements |= ancestors_for_projects if params[:filter]
+    total_count = [all_required_elements.size, paginator.total_count].max
+
+    Kaminari.paginate_array(all_required_elements, total_count: total_count)
+  end
+
+  def has_children?
+    projects.any? || subgroups.any?
+  end
+
+  private
+
+  def children
+    @children ||= paginator.paginate(params[:page])
+  end
+
+  def paginator
+    @paginator ||= Gitlab::MultiCollectionPaginator.new(subgroups, projects,
+                                                        per_page: params[:per_page])
+  end
+
+  def direct_child_groups
+    GroupsFinder.new(current_user,
+                     parent: parent_group,
+                     all_available: true).execute
+  end
+
+  def all_visible_descendant_groups
+    groups_table = Group.arel_table
+    visible_to_user = groups_table[:visibility_level]
+                      .in(Gitlab::VisibilityLevel.levels_for_user(current_user))
+    if current_user
+      authorized_groups = GroupsFinder.new(current_user,
+                                           all_available: false)
+                            .execute.as('authorized')
+      authorized_to_user = groups_table.project(1).from(authorized_groups)
+                             .where(authorized_groups[:id].eq(groups_table[:id]))
+                             .exists
+      visible_to_user = visible_to_user.or(authorized_to_user)
+    end
+
+    hierarchy_for_parent
+      .descendants
+      .where(visible_to_user)
+  end
+
+  def subgroups_matching_filter
+    all_visible_descendant_groups
+      .search(params[:filter])
+  end
+
+  # When filtering we want all to preload all the ancestors upto the specified
+  # parent group.
+  #
+  # - root
+  #   - subgroup
+  #     - nested-group
+  #       - project
+  #
+  # So when searching 'project', on the 'subgroup' page we want to preload
+  # 'nested-group' but not 'subgroup' or 'root'
+  def ancestors_for_groups(base_for_ancestors)
+    Gitlab::GroupHierarchy.new(base_for_ancestors)
+      .base_and_ancestors(upto: parent_group.id)
+  end
+
+  def ancestors_for_projects
+    projects_to_load_ancestors_of = projects.where.not(namespace: parent_group)
+    groups_to_load_ancestors_of = Group.where(id: projects_to_load_ancestors_of.select(:namespace_id))
+    ancestors_for_groups(groups_to_load_ancestors_of)
+      .with_selects_for_list(archived: params[:archived])
+  end
+
+  def subgroups
+    return Group.none unless Group.supports_nested_groups?
+
+    # When filtering subgroups, we want to find all matches withing the tree of
+    # descendants to show to the user
+    groups = if params[:filter]
+               ancestors_for_groups(subgroups_matching_filter)
+             else
+               direct_child_groups
+             end
+    groups.with_selects_for_list(archived: params[:archived]).order_by(sort)
+  end
+
+  def direct_child_projects
+    GroupProjectsFinder.new(group: parent_group, current_user: current_user, params: params)
+      .execute
+  end
+
+  # Finds all projects nested under `parent_group` or any of its descendant
+  # groups
+  def projects_matching_filter
+    projects_nested_in_group = Project.where(namespace_id: hierarchy_for_parent.base_and_descendants.select(:id))
+    params_with_search = params.merge(search: params[:filter])
+
+    ProjectsFinder.new(params: params_with_search,
+                       current_user: current_user,
+                       project_ids_relation: projects_nested_in_group).execute
+  end
+
+  def projects
+    projects = if params[:filter]
+                 projects_matching_filter
+               else
+                 direct_child_projects
+               end
+    projects.with_route.order_by(sort)
+  end
+
+  def sort
+    params.fetch(:sort, 'id_asc')
+  end
+
+  def hierarchy_for_parent
+    @hierarchy ||= Gitlab::GroupHierarchy.new(Group.where(id: parent_group.id))
+  end
+end
diff --git a/app/finders/group_projects_finder.rb b/app/finders/group_projects_finder.rb
index f2d3b90b8e2..6e8733bb49c 100644
--- a/app/finders/group_projects_finder.rb
+++ b/app/finders/group_projects_finder.rb
@@ -34,7 +34,6 @@ class GroupProjectsFinder < ProjectsFinder
                else
                  collection_without_user
                end
-
     union(projects)
   end
 
diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index 8d02d5de5c3..4754a67450f 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -309,4 +309,8 @@ module ApplicationHelper
   def show_new_repo?
     cookies["new_repo"] == "true" && body_data_page != 'projects:show'
   end
+
+  def locale_path
+    asset_path("locale/#{Gitlab::I18n.locale}/app.js")
+  end
 end
diff --git a/app/helpers/application_settings_helper.rb b/app/helpers/application_settings_helper.rb
index 7bd34df5c95..1ee8911bb1a 100644
--- a/app/helpers/application_settings_helper.rb
+++ b/app/helpers/application_settings_helper.rb
@@ -108,6 +108,34 @@ module ApplicationSettingsHelper
     options_for_select(Sidekiq::Queue.all.map(&:name), @application_setting.sidekiq_throttling_queues)
   end
 
+  def circuitbreaker_failure_count_help_text
+    health_link = link_to(s_('AdminHealthPageLink|health page'), admin_health_check_path)
+    api_link = link_to(s_('CircuitBreakerApiLink|circuitbreaker api'), help_page_path("api/repository_storage_health"))
+    message = _("The number of failures of after which GitLab will completely "\
+                "prevent access to the storage. The number of failures can be "\
+                "reset in the admin interface: %{link_to_health_page} or using "\
+                "the %{api_documentation_link}.")
+    message = message % { link_to_health_page: health_link, api_documentation_link: api_link }
+
+    message.html_safe
+  end
+
+  def circuitbreaker_failure_wait_time_help_text
+    _("When access to a storage fails. GitLab will prevent access to the "\
+      "storage for the time specified here. This allows the filesystem to "\
+      "recover. Repositories on failing shards are temporarly unavailable")
+  end
+
+  def circuitbreaker_failure_reset_time_help_text
+    _("The time in seconds GitLab will keep failure information. When no "\
+      "failures occur during this time, information about the mount is reset.")
+  end
+
+  def circuitbreaker_storage_timeout_help_text
+    _("The time in seconds GitLab will try to access storage. After this time a "\
+      "timeout error will be raised.")
+  end
+
   def visible_attributes
     [
       :admin_notification_email,
@@ -116,6 +144,10 @@ module ApplicationSettingsHelper
       :akismet_api_key,
       :akismet_enabled,
       :auto_devops_enabled,
+      :circuitbreaker_failure_count_threshold,
+      :circuitbreaker_failure_reset_time,
+      :circuitbreaker_failure_wait_time,
+      :circuitbreaker_storage_timeout,
       :clientside_sentry_dsn,
       :clientside_sentry_enabled,
       :container_registry_token_expire_delay,
diff --git a/app/helpers/preferences_helper.rb b/app/helpers/preferences_helper.rb
index 0d7347ed30d..8e822ed0ea2 100644
--- a/app/helpers/preferences_helper.rb
+++ b/app/helpers/preferences_helper.rb
@@ -36,7 +36,8 @@ module PreferencesHelper
   def project_view_choices
     [
       ['Files and Readme (default)', :files],
-      ['Activity', :activity]
+      ['Activity', :activity],
+      ['Readme', :readme]
     ]
   end
 
diff --git a/app/helpers/projects_helper.rb b/app/helpers/projects_helper.rb
index 20e050195ea..d085c1a0e57 100644
--- a/app/helpers/projects_helper.rb
+++ b/app/helpers/projects_helper.rb
@@ -15,7 +15,7 @@ module ProjectsHelper
   end
 
   def link_to_member_avatar(author, opts = {})
-    default_opts = { size: 16 }
+    default_opts = { size: 16, lazy_load: false }
     opts = default_opts.merge(opts)
 
     classes = %W[avatar avatar-inline s#{opts[:size]}]
@@ -27,8 +27,26 @@ module ProjectsHelper
     image_tag(src, width: opts[:size], class: classes, alt: '', "data-src" => avatar)
   end
 
+  def author_content_tag(author, opts = {})
+    default_opts = { author_class: 'author', tooltip: false, by_username: false }
+    opts = default_opts.merge(opts)
+
+    has_tooltip = !opts[:by_username] && opts[:tooltip]
+
+    username = opts[:by_username] ? author.to_reference : author.name
+    name_tag_options = { class: [opts[:author_class]] }
+
+    if has_tooltip
+      name_tag_options[:title] = author.to_reference
+      name_tag_options[:data] = { placement: 'top' }
+      name_tag_options[:class] << 'has-tooltip'
+    end
+
+    content_tag(:span, sanitize(username), name_tag_options)
+  end
+
   def link_to_member(project, author, opts = {}, &block)
-    default_opts = { avatar: true, name: true, size: 16, author_class: 'author', title: ":name", tooltip: false, lazy_load: false }
+    default_opts = { avatar: true, name: true, title: ":name" }
     opts = default_opts.merge(opts)
 
     return "(deleted)" unless author
@@ -39,12 +57,7 @@ module ProjectsHelper
     author_html << link_to_member_avatar(author, opts) if opts[:avatar]
 
     # Build name span tag
-    if opts[:by_username]
-      author_html << content_tag(:span, sanitize("@#{author.username}"), class: opts[:author_class]) if opts[:name]
-    else
-      tooltip_data = { placement: 'top' }
-      author_html << content_tag(:span, sanitize(author.name), class: [opts[:author_class], ('has-tooltip' if opts[:tooltip])], title: (author.to_reference if opts[:tooltip]), data: (tooltip_data if opts[:tooltip])) if opts[:name]
-    end
+    author_html << author_content_tag(author, opts) if opts[:name]
 
     author_html << capture(&block) if block
 
diff --git a/app/helpers/sorting_helper.rb b/app/helpers/sorting_helper.rb
index 1b542ed2a96..b05eb93b465 100644
--- a/app/helpers/sorting_helper.rb
+++ b/app/helpers/sorting_helper.rb
@@ -42,6 +42,17 @@ module SortingHelper
     options
   end
 
+  def groups_sort_options_hash
+    options = {
+      sort_value_recently_created => sort_title_recently_created,
+      sort_value_oldest_created => sort_title_oldest_created,
+      sort_value_recently_updated => sort_title_recently_updated,
+      sort_value_oldest_updated => sort_title_oldest_updated
+    }
+
+    options
+  end
+
   def member_sort_options_hash
     {
       sort_value_access_level_asc  => sort_title_access_level_asc,
diff --git a/app/models/application_setting.rb b/app/models/application_setting.rb
index c0cc60d5ebf..4dda276bb41 100644
--- a/app/models/application_setting.rb
+++ b/app/models/application_setting.rb
@@ -33,6 +33,8 @@ class ApplicationSetting < ActiveRecord::Base
 
   attr_accessor :domain_whitelist_raw, :domain_blacklist_raw
 
+  default_value_for :id, 1
+
   validates :uuid, presence: true
 
   validates :session_expire_delay,
@@ -151,6 +153,13 @@ class ApplicationSetting < ActiveRecord::Base
             presence: true,
             numericality: { greater_than_or_equal_to: 0 }
 
+  validates :circuitbreaker_failure_count_threshold,
+            :circuitbreaker_failure_wait_time,
+            :circuitbreaker_failure_reset_time,
+            :circuitbreaker_storage_timeout,
+            presence: true,
+            numericality: { only_integer: true, greater_than_or_equal_to: 0 }
+
   SUPPORTED_KEY_TYPES.each do |type|
     validates :"#{type}_key_restriction", presence: true, key_restriction: { type: type }
   end
@@ -194,7 +203,10 @@ class ApplicationSetting < ActiveRecord::Base
     ensure_cache_setup
 
     Rails.cache.fetch(CACHE_KEY) do
-      ApplicationSetting.last
+      ApplicationSetting.last.tap do |settings|
+        # do not cache nils
+        raise 'missing settings' unless settings
+      end
     end
   rescue
     # Fall back to an uncached value if there are any problems (e.g. redis down)
diff --git a/app/models/ci/artifact_blob.rb b/app/models/ci/artifact_blob.rb
index 8b66531ec7b..ec56cc53aea 100644
--- a/app/models/ci/artifact_blob.rb
+++ b/app/models/ci/artifact_blob.rb
@@ -2,7 +2,7 @@ module Ci
   class ArtifactBlob
     include BlobLike
 
-    EXTENTIONS_SERVED_BY_PAGES = %w[.html .htm .txt .json].freeze
+    EXTENSIONS_SERVED_BY_PAGES = %w[.html .htm .txt .json].freeze
 
     attr_reader :entry
 
@@ -36,17 +36,22 @@ module Ci
     def external_url(project, job)
       return unless external_link?(job)
 
-      components = project.full_path_components
-      components << "-/jobs/#{job.id}/artifacts/file/#{path}"
-      artifact_path = components[1..-1].join('/')
+      full_path_parts = project.full_path_components
+      top_level_group = full_path_parts.shift
 
-      "#{pages_config.protocol}://#{components[0]}.#{pages_config.host}/#{artifact_path}"
+      artifact_path = [
+        '-', *full_path_parts, '-',
+        'jobs', job.id,
+        'artifacts', path
+      ].join('/')
+
+      "#{pages_config.protocol}://#{top_level_group}.#{pages_config.host}/#{artifact_path}"
     end
 
     def external_link?(job)
       pages_config.enabled &&
         pages_config.artifacts_server &&
-        EXTENTIONS_SERVED_BY_PAGES.include?(File.extname(name)) &&
+        EXTENSIONS_SERVED_BY_PAGES.include?(File.extname(name)) &&
         job.project.public?
     end
 
diff --git a/app/models/concerns/group_descendant.rb b/app/models/concerns/group_descendant.rb
new file mode 100644
index 00000000000..01957da0bf3
--- /dev/null
+++ b/app/models/concerns/group_descendant.rb
@@ -0,0 +1,56 @@
+module GroupDescendant
+  # Returns the hierarchy of a project or group in the from of a hash upto a
+  # given top.
+  #
+  # > project.hierarchy
+  # => { parent_group => { child_group => project } }
+  def hierarchy(hierarchy_top = nil, preloaded = nil)
+    preloaded ||= ancestors_upto(hierarchy_top)
+    expand_hierarchy_for_child(self, self, hierarchy_top, preloaded)
+  end
+
+  # Merges all hierarchies of the given groups or projects into an array of
+  # hashes. All ancestors need to be loaded into the given `descendants` to avoid
+  # queries down the line.
+  #
+  # > GroupDescendant.merge_hierarchy([project, child_group, child_group2, parent])
+  # => { parent => [{ child_group => project}, child_group2] }
+  def self.build_hierarchy(descendants, hierarchy_top = nil)
+    descendants = Array.wrap(descendants).uniq
+    return [] if descendants.empty?
+
+    unless descendants.all? { |hierarchy| hierarchy.is_a?(GroupDescendant) }
+      raise ArgumentError.new('element is not a hierarchy')
+    end
+
+    all_hierarchies = descendants.map do |descendant|
+      descendant.hierarchy(hierarchy_top, descendants)
+    end
+
+    Gitlab::Utils::MergeHash.merge(all_hierarchies)
+  end
+
+  private
+
+  def expand_hierarchy_for_child(child, hierarchy, hierarchy_top, preloaded)
+    parent = hierarchy_top if hierarchy_top && child.parent_id == hierarchy_top.id
+    parent ||= preloaded.detect { |possible_parent| possible_parent.is_a?(Group) && possible_parent.id == child.parent_id }
+
+    if parent.nil? && !child.parent_id.nil?
+      raise ArgumentError.new('parent was not preloaded')
+    end
+
+    if parent.nil? && hierarchy_top.present?
+      raise ArgumentError.new('specified top is not part of the tree')
+    end
+
+    if parent && parent != hierarchy_top
+      expand_hierarchy_for_child(parent,
+                                 { parent => hierarchy },
+                                 hierarchy_top,
+                                 preloaded)
+    else
+      hierarchy
+    end
+  end
+end
diff --git a/app/models/concerns/loaded_in_group_list.rb b/app/models/concerns/loaded_in_group_list.rb
new file mode 100644
index 00000000000..dcb3b2b5ff3
--- /dev/null
+++ b/app/models/concerns/loaded_in_group_list.rb
@@ -0,0 +1,72 @@
+module LoadedInGroupList
+  extend ActiveSupport::Concern
+
+  module ClassMethods
+    def with_counts(archived:)
+      selects_including_counts = [
+        'namespaces.*',
+        "(#{project_count_sql(archived).to_sql}) AS preloaded_project_count",
+        "(#{member_count_sql.to_sql}) AS preloaded_member_count",
+        "(#{subgroup_count_sql.to_sql}) AS preloaded_subgroup_count"
+      ]
+
+      select(selects_including_counts)
+    end
+
+    def with_selects_for_list(archived: nil)
+      with_route.with_counts(archived: archived)
+    end
+
+    private
+
+    def project_count_sql(archived = nil)
+      projects = Project.arel_table
+      namespaces = Namespace.arel_table
+
+      base_count = projects.project(Arel.star.count.as('preloaded_project_count'))
+                     .where(projects[:namespace_id].eq(namespaces[:id]))
+      if archived == 'only'
+        base_count.where(projects[:archived].eq(true))
+      elsif Gitlab::Utils.to_boolean(archived)
+        base_count
+      else
+        base_count.where(projects[:archived].not_eq(true))
+      end
+    end
+
+    def subgroup_count_sql
+      namespaces = Namespace.arel_table
+      children = namespaces.alias('children')
+
+      namespaces.project(Arel.star.count.as('preloaded_subgroup_count'))
+        .from(children)
+        .where(children[:parent_id].eq(namespaces[:id]))
+    end
+
+    def member_count_sql
+      members = Member.arel_table
+      namespaces = Namespace.arel_table
+
+      members.project(Arel.star.count.as('preloaded_member_count'))
+        .where(members[:source_type].eq(Namespace.name))
+        .where(members[:source_id].eq(namespaces[:id]))
+        .where(members[:requested_at].eq(nil))
+    end
+  end
+
+  def children_count
+    @children_count ||= project_count + subgroup_count
+  end
+
+  def project_count
+    @project_count ||= try(:preloaded_project_count) || projects.non_archived.count
+  end
+
+  def subgroup_count
+    @subgroup_count ||= try(:preloaded_subgroup_count) || children.count
+  end
+
+  def member_count
+    @member_count ||= try(:preloaded_member_count) || users.count
+  end
+end
diff --git a/app/models/concerns/storage/legacy_namespace.rb b/app/models/concerns/storage/legacy_namespace.rb
index 5ab5c80a2f5..b3020484738 100644
--- a/app/models/concerns/storage/legacy_namespace.rb
+++ b/app/models/concerns/storage/legacy_namespace.rb
@@ -7,6 +7,8 @@ module Storage
         raise Gitlab::UpdatePathError.new('Namespace cannot be moved, because at least one project has tags in container registry')
       end
 
+      expires_full_path_cache
+
       # Move the namespace directory in all storage paths used by member projects
       repository_storage_paths.each do |repository_storage_path|
         # Ensure old directory exists before moving it
diff --git a/app/models/concerns/time_trackable.rb b/app/models/concerns/time_trackable.rb
index b517ddaebd7..9f403d96ed5 100644
--- a/app/models/concerns/time_trackable.rb
+++ b/app/models/concerns/time_trackable.rb
@@ -9,7 +9,7 @@ module TimeTrackable
   extend ActiveSupport::Concern
 
   included do
-    attr_reader :time_spent, :time_spent_user
+    attr_reader :time_spent, :time_spent_user, :spent_at
 
     alias_method :time_spent?, :time_spent
 
@@ -24,6 +24,7 @@ module TimeTrackable
   def spend_time(options)
     @time_spent = options[:duration]
     @time_spent_user = options[:user]
+    @spent_at = options[:spent_at]
     @original_total_time_spent = nil
 
     return if @time_spent == 0
@@ -55,7 +56,11 @@ module TimeTrackable
   end
 
   def add_or_subtract_spent_time
-    timelogs.new(time_spent: time_spent, user: @time_spent_user)
+    timelogs.new(
+      time_spent: time_spent,
+      user: @time_spent_user,
+      spent_at: @spent_at
+    )
   end
 
   def check_negative_time_spent
diff --git a/app/models/gcp/cluster.rb b/app/models/gcp/cluster.rb
index 18bd6a6dcb4..162a690c0e3 100644
--- a/app/models/gcp/cluster.rb
+++ b/app/models/gcp/cluster.rb
@@ -7,6 +7,9 @@ module Gcp
     belongs_to :user
     belongs_to :service
 
+    scope :enabled, -> { where(enabled: true) }
+    scope :disabled, -> { where(enabled: false) }
+
     default_value_for :gcp_cluster_zone, 'us-central1-a'
     default_value_for :gcp_cluster_size, 3
     default_value_for :gcp_machine_type, 'n1-standard-4'
diff --git a/app/models/group.rb b/app/models/group.rb
index e746e4a12c9..07fb62bb249 100644
--- a/app/models/group.rb
+++ b/app/models/group.rb
@@ -6,6 +6,8 @@ class Group < Namespace
   include Avatarable
   include Referable
   include SelectForProjectAuthorization
+  include LoadedInGroupList
+  include GroupDescendant
 
   has_many :group_members, -> { where(requested_at: nil) }, dependent: :destroy, as: :source # rubocop:disable Cop/ActiveRecordDependent
   alias_method :members, :group_members
diff --git a/app/models/merge_request.rb b/app/models/merge_request.rb
index 972a35dde4d..c3fae16d109 100644
--- a/app/models/merge_request.rb
+++ b/app/models/merge_request.rb
@@ -396,7 +396,7 @@ class MergeRequest < ActiveRecord::Base
   end
 
   def merge_ongoing?
-    !!merge_jid && !merged?
+    !!merge_jid && !merged? && Gitlab::SidekiqStatus.running?(merge_jid)
   end
 
   def closed_without_fork?
diff --git a/app/models/namespace.rb b/app/models/namespace.rb
index 4672881e220..0601a61a926 100644
--- a/app/models/namespace.rb
+++ b/app/models/namespace.rb
@@ -162,6 +162,13 @@ class Namespace < ActiveRecord::Base
       .base_and_ancestors
   end
 
+  # returns all ancestors upto but excluding the the given namespace
+  # when no namespace is given, all ancestors upto the top are returned
+  def ancestors_upto(top = nil)
+    Gitlab::GroupHierarchy.new(self.class.where(id: id))
+      .ancestors(upto: top)
+  end
+
   def self_and_ancestors
     return self.class.where(id: id) unless parent_id
 
diff --git a/app/models/note.rb b/app/models/note.rb
index ceded9f2aef..8939e590ef1 100644
--- a/app/models/note.rb
+++ b/app/models/note.rb
@@ -169,7 +169,7 @@ class Note < ActiveRecord::Base
   end
 
   def cross_reference?
-    system? && SystemNoteService.cross_reference?(note)
+    system? && matches_cross_reference_regex?
   end
 
   def diff_note?
diff --git a/app/models/project.rb b/app/models/project.rb
index 57e91ab3b88..4689b588906 100644
--- a/app/models/project.rb
+++ b/app/models/project.rb
@@ -17,6 +17,7 @@ class Project < ActiveRecord::Base
   include ProjectFeaturesCompatibility
   include SelectForProjectAuthorization
   include Routable
+  include GroupDescendant
 
   extend Gitlab::ConfigHelper
   extend Gitlab::CurrentSettings
@@ -81,6 +82,8 @@ class Project < ActiveRecord::Base
   belongs_to :creator, class_name: 'User'
   belongs_to :group, -> { where(type: 'Group') }, foreign_key: 'namespace_id'
   belongs_to :namespace
+  alias_method :parent, :namespace
+  alias_attribute :parent_id, :namespace_id
 
   has_one :last_event, -> {order 'events.created_at DESC'}, class_name: 'Event'
   has_many :boards, before_add: :validate_board_limit
@@ -479,6 +482,13 @@ class Project < ActiveRecord::Base
     end
   end
 
+  # returns all ancestor-groups upto but excluding the given namespace
+  # when no namespace is given, all ancestors upto the top are returned
+  def ancestors_upto(top = nil)
+    Gitlab::GroupHierarchy.new(Group.where(id: namespace_id))
+      .base_and_ancestors(upto: top)
+  end
+
   def lfs_enabled?
     return namespace.lfs_enabled? if self[:lfs_enabled].nil?
 
@@ -1262,7 +1272,7 @@ class Project < ActiveRecord::Base
 
     # self.forked_from_project will be nil before the project is saved, so
     # we need to go through the relation
-    original_project = forked_project_link.forked_from_project
+    original_project = forked_project_link&.forked_from_project
     return true unless original_project
 
     level <= original_project.visibility_level
@@ -1549,10 +1559,6 @@ class Project < ActiveRecord::Base
     map.public_path_for_source_path(path)
   end
 
-  def parent
-    namespace
-  end
-
   def parent_changed?
     namespace_id_changed?
   end
diff --git a/app/models/repository.rb b/app/models/repository.rb
index bf526ca1762..4324ea46aac 100644
--- a/app/models/repository.rb
+++ b/app/models/repository.rb
@@ -468,9 +468,7 @@ class Repository
   end
 
   def blob_at(sha, path)
-    unless Gitlab::Git.blank_ref?(sha)
-      Blob.decorate(Gitlab::Git::Blob.find(self, sha, path), project)
-    end
+    Blob.decorate(raw_repository.blob_at(sha, path), project)
   rescue Gitlab::Git::Repository::NoRepository
     nil
   end
@@ -914,14 +912,6 @@ class Repository
     end
   end
 
-  def resolve_conflicts(user, branch_name, params)
-    with_branch(user, branch_name) do
-      committer = user_to_committer(user)
-
-      create_commit(params.merge(author: committer, committer: committer))
-    end
-  end
-
   def merged_to_root_ref?(branch_name)
     branch_commit = commit(branch_name)
     root_ref_commit = commit(root_ref)
@@ -1127,7 +1117,7 @@ class Repository
 
   def last_commit_id_for_path_by_shelling_out(sha, path)
     args = %W(rev-list --max-count=1 #{sha} -- #{path})
-    run_git(args).first.strip
+    raw_repository.run_git_with_timeout(args, Gitlab::Git::Popen::FAST_GIT_PROCESS_TIMEOUT).first.strip
   end
 
   def repository_storage_path
diff --git a/app/models/user.rb b/app/models/user.rb
index 533a776bc65..9459b6d4fa4 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -182,13 +182,8 @@ class User < ActiveRecord::Base
   enum dashboard: [:projects, :stars, :project_activity, :starred_project_activity, :groups, :todos]
 
   # User's Project preference
-  #
-  # Note: When adding an option, it MUST go on the end of the hash with a
-  # number higher than the current max. We cannot move options and/or change
-  # their numbers.
-  #
-  # We skip 0 because this was used by an option that has since been removed.
-  enum project_view: { activity: 1, files: 2 }
+  # Note: When adding an option, it MUST go on the end of the array.
+  enum project_view: [:readme, :activity, :files]
 
   alias_attribute :private_token, :authentication_token
 
diff --git a/app/serializers/base_serializer.rb b/app/serializers/base_serializer.rb
index 4e6c15f673b..8cade280b0c 100644
--- a/app/serializers/base_serializer.rb
+++ b/app/serializers/base_serializer.rb
@@ -1,6 +1,9 @@
 class BaseSerializer
-  def initialize(parameters = {})
-    @request = EntityRequest.new(parameters)
+  attr_reader :params
+
+  def initialize(params = {})
+    @params = params
+    @request = EntityRequest.new(params)
   end
 
   def represent(resource, opts = {}, entity_class = nil)
diff --git a/app/serializers/concerns/with_pagination.rb b/app/serializers/concerns/with_pagination.rb
new file mode 100644
index 00000000000..d29e22d6740
--- /dev/null
+++ b/app/serializers/concerns/with_pagination.rb
@@ -0,0 +1,22 @@
+module WithPagination
+  attr_accessor :paginator
+
+  def with_pagination(request, response)
+    tap { self.paginator = Gitlab::Serializer::Pagination.new(request, response) }
+  end
+
+  def paginated?
+    paginator.present?
+  end
+
+  # super is `BaseSerializer#represent` here.
+  #
+  # we shouldn't try to paginate single resources
+  def represent(resource, opts = {})
+    if paginated? && resource.respond_to?(:page)
+      super(@paginator.paginate(resource), opts)
+    else
+      super(resource, opts)
+    end
+  end
+end
diff --git a/app/serializers/container_tag_entity.rb b/app/serializers/container_tag_entity.rb
index ec1fc349586..8f1488e6cbb 100644
--- a/app/serializers/container_tag_entity.rb
+++ b/app/serializers/container_tag_entity.rb
@@ -1,10 +1,10 @@
 class ContainerTagEntity < Grape::Entity
   include RequestAwareEntity
 
-  expose :name, :location, :revision, :total_size, :created_at
+  expose :name, :location, :revision, :short_revision, :total_size, :created_at
 
   expose :destroy_path, if: -> (*) { can_destroy? } do |tag|
-    project_registry_repository_tag_path(project, tag.repository, tag.name, format: :json)
+    project_registry_repository_tag_path(project, tag.repository, tag.name)
   end
 
   private
diff --git a/app/serializers/environment_serializer.rb b/app/serializers/environment_serializer.rb
index 88842a9aa75..84722f33f59 100644
--- a/app/serializers/environment_serializer.rb
+++ b/app/serializers/environment_serializer.rb
@@ -1,4 +1,6 @@
 class EnvironmentSerializer < BaseSerializer
+  include WithPagination
+
   Item = Struct.new(:name, :size, :latest)
 
   entity EnvironmentEntity
@@ -7,18 +9,10 @@ class EnvironmentSerializer < BaseSerializer
     tap { @itemize = true }
   end
 
-  def with_pagination(request, response)
-    tap { @paginator = Gitlab::Serializer::Pagination.new(request, response) }
-  end
-
   def itemized?
     @itemize
   end
 
-  def paginated?
-    @paginator.present?
-  end
-
   def represent(resource, opts = {})
     if itemized?
       itemize(resource).map do |item|
@@ -27,8 +21,6 @@ class EnvironmentSerializer < BaseSerializer
           latest: super(item.latest, opts) }
       end
     else
-      resource = @paginator.paginate(resource) if paginated?
-
       super(resource, opts)
     end
   end
diff --git a/app/serializers/group_child_entity.rb b/app/serializers/group_child_entity.rb
new file mode 100644
index 00000000000..37240bfb0b1
--- /dev/null
+++ b/app/serializers/group_child_entity.rb
@@ -0,0 +1,77 @@
+class GroupChildEntity < Grape::Entity
+  include ActionView::Helpers::NumberHelper
+  include RequestAwareEntity
+
+  expose :id, :name, :description, :visibility, :full_name,
+         :created_at, :updated_at, :avatar_url
+
+  expose :type do |instance|
+    type
+  end
+
+  expose :can_edit do |instance|
+    return false unless request.respond_to?(:current_user)
+
+    can?(request.current_user, "admin_#{type}", instance)
+  end
+
+  expose :edit_path do |instance|
+    # We know `type` will be one either `project` or `group`.
+    # The `edit_polymorphic_path` helper would try to call the path helper
+    # with a plural: `edit_groups_path(instance)` or `edit_projects_path(instance)`
+    # while our methods are `edit_group_path` or `edit_group_path`
+    public_send("edit_#{type}_path", instance) # rubocop:disable GitlabSecurity/PublicSend
+  end
+
+  expose :relative_path do |instance|
+    polymorphic_path(instance)
+  end
+
+  expose :permission do |instance|
+    membership&.human_access
+  end
+
+  # Project only attributes
+  expose :star_count,
+         if: lambda { |_instance, _options| project? }
+
+  # Group only attributes
+  expose :children_count, :parent_id, :project_count, :subgroup_count,
+         unless: lambda { |_instance, _options| project? }
+
+  expose :leave_path, unless: lambda { |_instance, _options| project? } do |instance|
+    leave_group_members_path(instance)
+  end
+
+  expose :can_leave, unless: lambda { |_instance, _options| project? } do |instance|
+    if membership
+      can?(request.current_user, :destroy_group_member, membership)
+    else
+      false
+    end
+  end
+
+  expose :number_projects_with_delimiter, unless: lambda { |_instance, _options| project? } do |instance|
+    number_with_delimiter(instance.project_count)
+  end
+
+  expose :number_users_with_delimiter, unless: lambda { |_instance, _options| project? } do |instance|
+    number_with_delimiter(instance.member_count)
+  end
+
+  private
+
+  def membership
+    return unless request.current_user
+
+    @membership ||= request.current_user.members.find_by(source: object)
+  end
+
+  def project?
+    object.is_a?(Project)
+  end
+
+  def type
+    object.class.name.downcase
+  end
+end
diff --git a/app/serializers/group_child_serializer.rb b/app/serializers/group_child_serializer.rb
new file mode 100644
index 00000000000..2baef0a5703
--- /dev/null
+++ b/app/serializers/group_child_serializer.rb
@@ -0,0 +1,51 @@
+class GroupChildSerializer < BaseSerializer
+  include WithPagination
+
+  attr_reader :hierarchy_root, :should_expand_hierarchy
+
+  entity GroupChildEntity
+
+  def expand_hierarchy(hierarchy_root = nil)
+    @hierarchy_root = hierarchy_root
+    @should_expand_hierarchy = true
+
+    self
+  end
+
+  def represent(resource, opts = {}, entity_class = nil)
+    if should_expand_hierarchy
+      paginator.paginate(resource) if paginated?
+      represent_hierarchies(resource, opts)
+    else
+      super(resource, opts)
+    end
+  end
+
+  protected
+
+  def represent_hierarchies(children, opts)
+    if children.is_a?(GroupDescendant)
+      represent_hierarchy(children.hierarchy(hierarchy_root), opts).first
+    else
+      hierarchies = GroupDescendant.build_hierarchy(children, hierarchy_root)
+      # When an array was passed, we always want to represent an array.
+      # Even if the hierarchy only contains one element
+      represent_hierarchy(Array.wrap(hierarchies), opts)
+    end
+  end
+
+  def represent_hierarchy(hierarchy, opts)
+    serializer = self.class.new(params)
+
+    if hierarchy.is_a?(Hash)
+      hierarchy.map do |parent, children|
+        serializer.represent(parent, opts)
+          .merge(children: Array.wrap(serializer.represent_hierarchy(children, opts)))
+      end
+    elsif hierarchy.is_a?(Array)
+      hierarchy.flat_map { |child| serializer.represent_hierarchy(child, opts) }
+    else
+      serializer.represent(hierarchy, opts)
+    end
+  end
+end
diff --git a/app/serializers/group_serializer.rb b/app/serializers/group_serializer.rb
index 26e8566828b..8cf7eb63bcf 100644
--- a/app/serializers/group_serializer.rb
+++ b/app/serializers/group_serializer.rb
@@ -1,19 +1,5 @@
 class GroupSerializer < BaseSerializer
-  entity GroupEntity
-
-  def with_pagination(request, response)
-    tap { @paginator = Gitlab::Serializer::Pagination.new(request, response) }
-  end
+  include WithPagination
 
-  def paginated?
-    @paginator.present?
-  end
-
-  def represent(resource, opts = {})
-    if paginated?
-      super(@paginator.paginate(resource), opts)
-    else
-      super(resource, opts)
-    end
-  end
+  entity GroupEntity
 end
diff --git a/app/serializers/pipeline_serializer.rb b/app/serializers/pipeline_serializer.rb
index 661bf17983c..7181f8a6b04 100644
--- a/app/serializers/pipeline_serializer.rb
+++ b/app/serializers/pipeline_serializer.rb
@@ -1,16 +1,10 @@
 class PipelineSerializer < BaseSerializer
+  include WithPagination
+
   InvalidResourceError = Class.new(StandardError)
 
   entity PipelineDetailsEntity
 
-  def with_pagination(request, response)
-    tap { @paginator = Gitlab::Serializer::Pagination.new(request, response) }
-  end
-
-  def paginated?
-    @paginator.present?
-  end
-
   def represent(resource, opts = {})
     if resource.is_a?(ActiveRecord::Relation)
 
diff --git a/app/serializers/submodule_entity.rb b/app/serializers/submodule_entity.rb
index 9a7eb5e7880..ed1f1ae0ef0 100644
--- a/app/serializers/submodule_entity.rb
+++ b/app/serializers/submodule_entity.rb
@@ -7,7 +7,7 @@ class SubmoduleEntity < Grape::Entity
     'archive'
   end
 
-  expose :project_url do |blob|
+  expose :url do |blob|
     submodule_links(blob, request).first
   end
 
diff --git a/app/services/auth/container_registry_authentication_service.rb b/app/services/auth/container_registry_authentication_service.rb
index 9a636346899..f40cd2b06c8 100644
--- a/app/services/auth/container_registry_authentication_service.rb
+++ b/app/services/auth/container_registry_authentication_service.rb
@@ -56,11 +56,22 @@ module Auth
     def process_scope(scope)
       type, name, actions = scope.split(':', 3)
       actions = actions.split(',')
-      path = ContainerRegistry::Path.new(name)
 
-      return unless type == 'repository'
+      case type
+      when 'registry'
+        process_registry_access(type, name, actions)
+      when 'repository'
+        path = ContainerRegistry::Path.new(name)
+        process_repository_access(type, path, actions)
+      end
+    end
+
+    def process_registry_access(type, name, actions)
+      return unless current_user&.admin?
+      return unless name == 'catalog'
+      return unless actions == ['*']
 
-      process_repository_access(type, path, actions)
+      { type: type, name: name, actions: ['*'] }
     end
 
     def process_repository_access(type, path, actions)
diff --git a/app/services/ci/retry_build_service.rb b/app/services/ci/retry_build_service.rb
index d67b9f5cc56..c552193e66b 100644
--- a/app/services/ci/retry_build_service.rb
+++ b/app/services/ci/retry_build_service.rb
@@ -28,6 +28,8 @@ module Ci
 
       attributes.push([:user, current_user])
 
+      build.retried = true
+
       Ci::Build.transaction do
         # mark all other builds of that name as retried
         build.pipeline.builds.latest
diff --git a/app/services/merge_requests/add_todo_when_build_fails_service.rb b/app/services/merge_requests/add_todo_when_build_fails_service.rb
index 727768b1a39..6805b2f7d1c 100644
--- a/app/services/merge_requests/add_todo_when_build_fails_service.rb
+++ b/app/services/merge_requests/add_todo_when_build_fails_service.rb
@@ -3,7 +3,7 @@ module MergeRequests
     # Adds a todo to the parent merge_request when a CI build fails
     #
     def execute(commit_status)
-      return if commit_status.allow_failure?
+      return if commit_status.allow_failure? || commit_status.retried?
 
       commit_status_merge_requests(commit_status) do |merge_request|
         todo_service.merge_request_build_failed(merge_request)
diff --git a/app/services/merge_requests/conflicts/list_service.rb b/app/services/merge_requests/conflicts/list_service.rb
index 9835606812c..0f677a996f7 100644
--- a/app/services/merge_requests/conflicts/list_service.rb
+++ b/app/services/merge_requests/conflicts/list_service.rb
@@ -23,13 +23,13 @@ module MergeRequests
           # when there are no conflict files.
           conflicts.files.each(&:lines)
           @conflicts_can_be_resolved_in_ui = conflicts.files.length > 0
-        rescue Rugged::OdbError, Gitlab::Conflict::Parser::UnresolvableError, Gitlab::Conflict::FileCollection::ConflictSideMissing
+        rescue Rugged::OdbError, Gitlab::Git::Conflict::Parser::UnresolvableError, Gitlab::Git::Conflict::Resolver::ConflictSideMissing
           @conflicts_can_be_resolved_in_ui = false
         end
       end
 
       def conflicts
-        @conflicts ||= Gitlab::Conflict::FileCollection.read_only(merge_request)
+        @conflicts ||= Gitlab::Conflict::FileCollection.new(merge_request)
       end
     end
   end
diff --git a/app/services/merge_requests/conflicts/resolve_service.rb b/app/services/merge_requests/conflicts/resolve_service.rb
index 6b6e231f4f9..27cafd2d7d9 100644
--- a/app/services/merge_requests/conflicts/resolve_service.rb
+++ b/app/services/merge_requests/conflicts/resolve_service.rb
@@ -1,54 +1,10 @@
 module MergeRequests
   module Conflicts
     class ResolveService < MergeRequests::Conflicts::BaseService
-      MissingFiles = Class.new(Gitlab::Conflict::ResolutionError)
-
       def execute(current_user, params)
-        rugged = merge_request.source_project.repository.rugged
-
-        Gitlab::Conflict::FileCollection.for_resolution(merge_request) do |conflicts_for_resolution|
-          merge_index = conflicts_for_resolution.merge_index
-
-          params[:files].each do |file_params|
-            conflict_file = conflicts_for_resolution.file_for_path(file_params[:old_path], file_params[:new_path])
-
-            write_resolved_file_to_index(merge_index, rugged, conflict_file, file_params)
-          end
-
-          unless merge_index.conflicts.empty?
-            missing_files = merge_index.conflicts.map { |file| file[:ours][:path] }
-
-            raise MissingFiles, "Missing resolutions for the following files: #{missing_files.join(', ')}"
-          end
-
-          commit_params = {
-            message: params[:commit_message] || conflicts_for_resolution.default_commit_message,
-            parents: [conflicts_for_resolution.our_commit, conflicts_for_resolution.their_commit].map(&:oid),
-            tree: merge_index.write_tree(rugged)
-          }
-
-          conflicts_for_resolution
-            .project
-            .repository
-            .resolve_conflicts(current_user, merge_request.source_branch, commit_params)
-        end
-      end
-
-      private
-
-      def write_resolved_file_to_index(merge_index, rugged, file, params)
-        if params[:sections]
-          new_file = file.resolve_lines(params[:sections]).map(&:text).join("\n")
-
-          new_file << "\n" if file.our_blob.data.ends_with?("\n")
-        elsif params[:content]
-          new_file = file.resolve_content(params[:content])
-        end
-
-        our_path = file.our_path
+        conflicts = Gitlab::Conflict::FileCollection.new(merge_request)
 
-        merge_index.add(path: our_path, oid: rugged.write(new_file, :blob), mode: file.our_mode)
-        merge_index.conflict_remove(our_path)
+        conflicts.resolve(current_user, params[:commit_message], params[:files])
       end
     end
   end
diff --git a/app/services/projects/destroy_service.rb b/app/services/projects/destroy_service.rb
index 19d75ff2efa..81972df9b3c 100644
--- a/app/services/projects/destroy_service.rb
+++ b/app/services/projects/destroy_service.rb
@@ -51,7 +51,7 @@ module Projects
     end
 
     def wiki_path
-      repo_path + '.wiki'
+      project.wiki.disk_path
     end
 
     def trash_repositories!
diff --git a/app/services/projects/unlink_fork_service.rb b/app/services/projects/unlink_fork_service.rb
index abe414d0c05..2b82e5732e4 100644
--- a/app/services/projects/unlink_fork_service.rb
+++ b/app/services/projects/unlink_fork_service.rb
@@ -15,8 +15,8 @@ module Projects
 
       refresh_forks_count(@project.forked_from_project)
 
-      @project.forked_project_link.destroy
       @project.fork_network_member.destroy
+      @project.forked_project_link.destroy
     end
 
     def refresh_forks_count(project)
diff --git a/app/services/quick_actions/interpret_service.rb b/app/services/quick_actions/interpret_service.rb
index 955d934838b..06ac86cd5a9 100644
--- a/app/services/quick_actions/interpret_service.rb
+++ b/app/services/quick_actions/interpret_service.rb
@@ -381,7 +381,7 @@ module QuickActions
     end
 
     desc 'Add or substract spent time'
-    explanation do |time_spent|
+    explanation do |time_spent, time_spent_date|
       if time_spent
         if time_spent > 0
           verb = 'Adds'
@@ -394,16 +394,20 @@ module QuickActions
         "#{verb} #{Gitlab::TimeTrackingFormatter.output(value)} spent time."
       end
     end
-    params '<1h 30m | -1h 30m>'
+    params '<time(1h30m | -1h30m)> <date(YYYY-MM-DD)>'
     condition do
       current_user.can?(:"admin_#{issuable.to_ability_name}", issuable)
     end
-    parse_params do |raw_duration|
-      Gitlab::TimeTrackingFormatter.parse(raw_duration)
+    parse_params do |raw_time_date|
+      Gitlab::QuickActions::SpendTimeAndDateSeparator.new(raw_time_date).execute
     end
-    command :spend do |time_spent|
+    command :spend do |time_spent, time_spent_date|
       if time_spent
-        @updates[:spend_time] = { duration: time_spent, user: current_user }
+        @updates[:spend_time] = {
+          duration: time_spent,
+          user: current_user,
+          spent_at: time_spent_date
+        }
       end
     end
 
diff --git a/app/services/system_note_service.rb b/app/services/system_note_service.rb
index a52dce6cb4b..69bd19c1977 100644
--- a/app/services/system_note_service.rb
+++ b/app/services/system_note_service.rb
@@ -162,7 +162,6 @@ module SystemNoteService
   #   "changed time estimate to 3d 5h"
   #
   # Returns the created Note object
-
   def change_time_estimate(noteable, project, author)
     parsed_time = Gitlab::TimeTrackingFormatter.output(noteable.time_estimate)
     body = if noteable.time_estimate == 0
@@ -188,16 +187,17 @@ module SystemNoteService
   #   "added 2h 30m of time spent"
   #
   # Returns the created Note object
-
   def change_time_spent(noteable, project, author)
     time_spent = noteable.time_spent
 
     if time_spent == :reset
       body = "removed time spent"
     else
+      spent_at = noteable.spent_at
       parsed_time = Gitlab::TimeTrackingFormatter.output(time_spent.abs)
       action = time_spent > 0 ? 'added' : 'subtracted'
       body = "#{action} #{parsed_time} of time spent"
+      body << " at #{spent_at}" if spent_at
     end
 
     create_note(NoteSummary.new(noteable, project, author, body, action: 'time_tracking'))
@@ -451,10 +451,6 @@ module SystemNoteService
     end
   end
 
-  def cross_reference?(note_text)
-    note_text =~ /\A#{cross_reference_note_prefix}/i
-  end
-
   # Check if a cross-reference is disallowed
   #
   # This method prevents adding a "mentioned in !1" note on every single commit
@@ -484,7 +480,6 @@ module SystemNoteService
   # mentioner - Mentionable object
   #
   # Returns Boolean
-
   def cross_reference_exists?(noteable, mentioner)
     # Initial scope should be system notes of this noteable type
     notes = Note.system.where(noteable_type: noteable.class)
diff --git a/app/views/admin/application_settings/_form.html.haml b/app/views/admin/application_settings/_form.html.haml
index dbaed1d09fb..2b23af9212e 100644
--- a/app/views/admin/application_settings/_form.html.haml
+++ b/app/views/admin/application_settings/_form.html.haml
@@ -530,6 +530,32 @@
           = succeed "." do
             = link_to "repository storages documentation", help_page_path("administration/repository_storages")
 
+  %fieldset
+    %legend Git Storage Circuitbreaker settings
+    .form-group
+      = f.label :circuitbreaker_failure_count_threshold, _('Maximum git storage failures'), class: 'control-label col-sm-2'
+      .col-sm-10
+        = f.number_field :circuitbreaker_failure_count_threshold, class: 'form-control'
+        .help-block
+          = circuitbreaker_failure_count_help_text
+    .form-group
+      = f.label :circuitbreaker_failure_wait_time, _('Seconds to wait after a storage failure'), class: 'control-label col-sm-2'
+      .col-sm-10
+        = f.number_field :circuitbreaker_failure_wait_time, class: 'form-control'
+        .help-block
+          = circuitbreaker_failure_wait_time_help_text
+    .form-group
+      = f.label :circuitbreaker_failure_reset_time, _('Seconds before reseting failure information'), class: 'control-label col-sm-2'
+      .col-sm-10
+        = f.number_field :circuitbreaker_failure_reset_time, class: 'form-control'
+        .help-block
+          = circuitbreaker_failure_reset_time_help_text
+    .form-group
+      = f.label :circuitbreaker_storage_timeout, _('Seconds to wait for a storage access attempt'), class: 'control-label col-sm-2'
+      .col-sm-10
+        = f.number_field :circuitbreaker_storage_timeout, class: 'form-control'
+        .help-block
+          = circuitbreaker_storage_timeout_help_text
 
   %fieldset
     %legend Repository Checks
diff --git a/app/views/dashboard/_groups_head.html.haml b/app/views/dashboard/_groups_head.html.haml
index 7981daa0705..cebdbab4e74 100644
--- a/app/views/dashboard/_groups_head.html.haml
+++ b/app/views/dashboard/_groups_head.html.haml
@@ -1,13 +1,13 @@
 .top-area
   %ul.nav-links
     = nav_link(page: dashboard_groups_path) do
-      = link_to dashboard_groups_path, title: 'Your groups' do
+      = link_to dashboard_groups_path, title: _("Your groups") do
         Your groups
     = nav_link(page: explore_groups_path) do
-      = link_to explore_groups_path, title: 'Explore public groups' do
+      = link_to explore_groups_path, title: _("Explore public groups") do
         Explore public groups
   .nav-controls
     = render 'shared/groups/search_form'
     = render 'shared/groups/dropdown'
     - if current_user.can_create_group?
-      = link_to "New group", new_group_path, class: "btn btn-new"
+      = link_to _("New group"), new_group_path, class: "btn btn-new"
diff --git a/app/views/dashboard/groups/_empty_state.html.haml b/app/views/dashboard/groups/_empty_state.html.haml
deleted file mode 100644
index f5222fe631e..00000000000
--- a/app/views/dashboard/groups/_empty_state.html.haml
+++ /dev/null
@@ -1,7 +0,0 @@
-.groups-empty-state
-  = custom_icon("icon_empty_groups")
-
-  .text-content
-    %h4 A group is a collection of several projects.
-    %p If you organize your projects under a group, it works like a folder.
-    %p You can manage your group member’s permissions and access to each project in the group.
diff --git a/app/views/dashboard/groups/_groups.html.haml b/app/views/dashboard/groups/_groups.html.haml
index 168e6272d8e..601b6a8b1a7 100644
--- a/app/views/dashboard/groups/_groups.html.haml
+++ b/app/views/dashboard/groups/_groups.html.haml
@@ -1,9 +1,2 @@
 .js-groups-list-holder
-  #dashboard-group-app{ data: { endpoint: dashboard_groups_path(format: :json), path: dashboard_groups_path } }
-    .groups-list-loading
-      = icon('spinner spin', 'v-show' => 'isLoading')
-    %template{ 'v-if' => '!isLoading && isEmpty' }
-      %div{ 'v-cloak' => true }
-        = render 'empty_state'
-    %template{ 'v-else-if' => '!isLoading && !isEmpty' }
-      %groups-component{ ':groups' => 'state.groups', ':page-info' => 'state.pageInfo' }
+  #js-groups-tree{ data: { hide_projects: 'true', endpoint: dashboard_groups_path(format: :json), path: dashboard_groups_path, form_sel: 'form#group-filter-form', filter_sel: '.js-groups-list-filter', holder_sel: '.js-groups-list-holder', dropdown_sel: '.js-group-filter-dropdown-wrap' } }
diff --git a/app/views/dashboard/groups/index.html.haml b/app/views/dashboard/groups/index.html.haml
index 1cea8182733..25bf08c6c12 100644
--- a/app/views/dashboard/groups/index.html.haml
+++ b/app/views/dashboard/groups/index.html.haml
@@ -6,7 +6,7 @@
 = webpack_bundle_tag 'common_vue'
 = webpack_bundle_tag 'groups'
 
-- if @groups.empty?
-  = render 'empty_state'
+- if params[:filter].blank? && @groups.empty?
+  = render 'shared/groups/empty_state'
 - else
   = render 'groups'
diff --git a/app/views/discussions/_discussion.html.haml b/app/views/discussions/_discussion.html.haml
index 578e751ab47..0f03163a2e8 100644
--- a/app/views/discussions/_discussion.html.haml
+++ b/app/views/discussions/_discussion.html.haml
@@ -44,4 +44,4 @@
             = render "discussions/diff_with_notes", discussion: discussion
           - else
             .panel.panel-default
-              = render "discussions/notes", discussion: discussion
+              = render partial: "discussions/notes", locals: { discussion: discussion, disable_collapse_class: true }
diff --git a/app/views/discussions/_parallel_diff_discussion.html.haml b/app/views/discussions/_parallel_diff_discussion.html.haml
index 253cd336882..079d9083dff 100644
--- a/app/views/discussions/_parallel_diff_discussion.html.haml
+++ b/app/views/discussions/_parallel_diff_discussion.html.haml
@@ -4,7 +4,7 @@
     %td.notes_line.old
     %td.notes_content.parallel.old
       .content{ class: ('hide' unless discussions_left.any?(&:expanded?)) }
-        = render partial: "discussions/notes", collection: discussions_left, as: :discussion, line_type: 'old'
+        = render partial: "discussions/notes", collection: discussions_left, as: :discussion, line_type: 'old', locals: { disable_collapse_class: true }
   - else
     %td.notes_line.old= ("")
     %td.notes_content.parallel.old
@@ -14,7 +14,7 @@
     %td.notes_line.new
     %td.notes_content.parallel.new
       .content{ class: ('hide' unless discussions_right.any?(&:expanded?)) }
-        = render partial: "discussions/notes", collection: discussions_right, as: :discussion, line_type: 'new'
+        = render partial: "discussions/notes", collection: discussions_right, as: :discussion, line_type: 'new', locals: { disable_collapse_class: true }
   - else
     %td.notes_line.new= ("")
     %td.notes_content.parallel.new
diff --git a/app/views/explore/groups/_groups.html.haml b/app/views/explore/groups/_groups.html.haml
index 794c6d1d170..91149498248 100644
--- a/app/views/explore/groups/_groups.html.haml
+++ b/app/views/explore/groups/_groups.html.haml
@@ -1,6 +1,2 @@
 .js-groups-list-holder
-  %ul.content-list
-    - @groups.each do |group|
-      = render 'shared/groups/group', group: group
-
-  = paginate @groups, theme: 'gitlab'
+  #js-groups-tree{ data: { hide_projects: 'true', endpoint: explore_groups_path(format: :json), path: explore_groups_path, form_sel: 'form#group-filter-form', filter_sel: '.js-groups-list-filter', holder_sel: '.js-groups-list-holder', dropdown_sel: '.js-group-filter-dropdown-wrap' } }
diff --git a/app/views/explore/groups/index.html.haml b/app/views/explore/groups/index.html.haml
index 2651ef37e67..86abdf547cc 100644
--- a/app/views/explore/groups/index.html.haml
+++ b/app/views/explore/groups/index.html.haml
@@ -2,6 +2,9 @@
 - page_title    "Groups"
 - header_title  "Groups", dashboard_groups_path
 
+= webpack_bundle_tag 'common_vue'
+= webpack_bundle_tag 'groups'
+
 - if current_user
   = render 'dashboard/groups_head'
 - else
@@ -17,7 +20,7 @@
       %p Below you will find all the groups that are public.
       %p You can easily contribute to them by requesting to join these groups.
 
-- if @groups.present?
-  = render 'groups'
-- else
+- if params[:filter].blank? && @groups.empty?
   .nothing-here-block No public groups
+- else
+  = render 'groups'
diff --git a/app/views/groups/_children.html.haml b/app/views/groups/_children.html.haml
new file mode 100644
index 00000000000..3afb6b2f849
--- /dev/null
+++ b/app/views/groups/_children.html.haml
@@ -0,0 +1,5 @@
+= webpack_bundle_tag 'common_vue'
+= webpack_bundle_tag 'groups'
+
+.js-groups-list-holder
+  #js-groups-tree{ data: { hide_projects: 'false', group_id: group.id, endpoint: group_children_path(group, format: :json), path: group_path(group), form_sel: 'form#group-filter-form', filter_sel: '.js-groups-list-filter', holder_sel: '.js-groups-list-holder', dropdown_sel: '.js-group-filter-dropdown-wrap' } }
diff --git a/app/views/groups/_show_nav.html.haml b/app/views/groups/_show_nav.html.haml
deleted file mode 100644
index 35b75bc0923..00000000000
--- a/app/views/groups/_show_nav.html.haml
+++ /dev/null
@@ -1,8 +0,0 @@
-%ul.nav-links
-  = nav_link(page: group_path(@group)) do
-    = link_to group_path(@group) do
-      Projects
-  - if Group.supports_nested_groups?
-    = nav_link(page: subgroups_group_path(@group)) do
-      = link_to subgroups_group_path(@group) do
-        Subgroups
diff --git a/app/views/groups/issues.html.haml b/app/views/groups/issues.html.haml
index 07e64d9aeaf..00909982d59 100644
--- a/app/views/groups/issues.html.haml
+++ b/app/views/groups/issues.html.haml
@@ -19,13 +19,6 @@
 
   = render 'shared/issuable/search_bar', type: :issues
 
-  .row-content-block.second-block
-    Only issues from the
-    %strong= @group.name
-    group are listed here.
-    - if current_user
-      To see all issues you should visit #{link_to 'dashboard', issues_dashboard_path} page.
-
   = render 'shared/issues'
 - else
   = render 'shared/empty_states/issues', project_select_button: true
diff --git a/app/views/groups/merge_requests.html.haml b/app/views/groups/merge_requests.html.haml
index e56dc1fb9c2..694292aa7c1 100644
--- a/app/views/groups/merge_requests.html.haml
+++ b/app/views/groups/merge_requests.html.haml
@@ -15,11 +15,4 @@
 
   = render 'shared/issuable/search_bar', type: :merge_requests
 
-  .row-content-block.second-block
-    Only merge requests from
-    %strong= @group.name
-    group are listed here.
-    - if current_user
-      To see all merge requests you should visit #{link_to 'dashboard', merge_requests_dashboard_path} page.
-
   = render 'shared/merge_requests'
diff --git a/app/views/groups/show.html.haml b/app/views/groups/show.html.haml
index 3ca63f9c3e0..7f9486d08d9 100644
--- a/app/views/groups/show.html.haml
+++ b/app/views/groups/show.html.haml
@@ -1,5 +1,6 @@
 - @no_container = true
 - breadcrumb_title "Details"
+- can_create_subgroups = can?(current_user, :create_subgroup, @group)
 
 = content_for :meta_tags do
   = auto_discovery_link_tag(:atom, group_url(@group, rss_url_options), title: "#{@group.name} activity")
@@ -7,13 +8,38 @@
 = render 'groups/home_panel'
 
 .groups-header{ class: container_class }
-  .top-area
-    = render 'groups/show_nav'
-    .nav-controls
-      = render 'shared/projects/search_form'
-      = render 'shared/projects/dropdown'
+  .group-nav-container
+    .nav-controls.clearfix
+      = render "shared/groups/search_form"
+      = render "shared/groups/dropdown", show_archive_options: true
       - if can? current_user, :create_projects, @group
-        = link_to new_project_path(namespace_id: @group.id), class: 'btn btn-new pull-right' do
-          New Project
+        - new_project_label = _("New project")
+        - new_subgroup_label = _("New subgroup")
+        - if can_create_subgroups
+          .btn-group.new-project-subgroup.droplab-dropdown.js-new-project-subgroup{ data: { project_path: new_project_path(namespace_id: @group.id), subgroup_path: new_group_path(parent_id: @group.id) } }
+            %input.btn.btn-success.dropdown-primary.js-new-group-child{ type: "button", value: new_project_label, data: { action: "new-project" } }
+            %button.btn.btn-success.dropdown-toggle.js-dropdown-toggle{ type: "button", data: { "dropdown-trigger" => "#new-project-or-subgroup-dropdown" } }
+              = icon("caret-down", class: "dropdown-btn-icon")
+            %ul#new-project-or-subgroup-dropdown.dropdown-menu.dropdown-menu-align-right{ data: { dropdown: true } }
+              %li.droplab-item-selected{ role: "button", data: { value: "new-project", text: new_project_label } }
+                .menu-item
+                  .icon-container
+                    = icon("check", class: "list-item-checkmark")
+                  .description
+                    %strong= new_project_label
+                    %span= s_("GroupsTree|Create a project in this group.")
+              %li.divider.droplap-item-ignore
+              %li{ role: "button", data: { value: "new-subgroup", text: new_subgroup_label } }
+                .menu-item
+                  .icon-container
+                    = icon("check", class: "list-item-checkmark")
+                  .description
+                    %strong= new_subgroup_label
+                    %span= s_("GroupsTree|Create a subgroup in this group.")
+        - else
+          = link_to new_project_label, new_project_path(namespace_id: @group.id), class: "btn btn-success"
 
-  = render "projects", projects: @projects
+  - if params[:filter].blank? && !@has_children
+    = render "shared/groups/empty_state"
+  - else
+    = render "children", children: @children, group: @group
diff --git a/app/views/groups/subgroups.html.haml b/app/views/groups/subgroups.html.haml
deleted file mode 100644
index 869b3b243c6..00000000000
--- a/app/views/groups/subgroups.html.haml
+++ /dev/null
@@ -1,21 +0,0 @@
-- breadcrumb_title "Details"
-- @no_container = true
-
-= render 'groups/home_panel'
-
-.groups-header{ class: container_class }
-  .top-area
-    = render 'groups/show_nav'
-    .nav-controls
-      = form_tag request.path, method: :get do |f|
-        = search_field_tag :filter_groups, params[:filter_groups], placeholder: 'Filter by name', class: 'form-control', spellcheck: false
-      - if can?(current_user, :create_subgroup, @group)
-        = link_to new_group_path(parent_id: @group.id), class: 'btn btn-new pull-right' do
-          New Subgroup
-
-  - if @nested_groups.present?
-    %ul.content-list
-      = render partial: 'shared/groups/group', collection: @nested_groups, locals: { full_name: false }
-  - else
-    .nothing-here-block
-      There are no subgroups to show.
diff --git a/app/views/help/_shortcuts.html.haml b/app/views/help/_shortcuts.html.haml
index b18b3dd5766..29b23ae2e52 100644
--- a/app/views/help/_shortcuts.html.haml
+++ b/app/views/help/_shortcuts.html.haml
@@ -17,10 +17,6 @@
                   %th Global Shortcuts
                 %tr
                   %td.shortcut
-                    .key n
-                  %td Main Navigation
-                %tr
-                  %td.shortcut
                     .key s
                   %td Focus Search
                 %tr
diff --git a/app/views/layouts/_head.html.haml b/app/views/layouts/_head.html.haml
index f1b32274664..1597621fa78 100644
--- a/app/views/layouts/_head.html.haml
+++ b/app/views/layouts/_head.html.haml
@@ -37,7 +37,7 @@
   - if content_for?(:library_javascripts)
     = yield :library_javascripts
 
-  = javascript_include_tag asset_path("locale/#{I18n.locale.to_s || I18n.default_locale.to_s}/app.js") unless I18n.locale == :en
+  = javascript_include_tag locale_path unless I18n.locale == :en
   = webpack_bundle_tag "webpack_runtime"
   = webpack_bundle_tag "common"
   = webpack_bundle_tag "main"
diff --git a/app/views/layouts/nav/sidebar/_project.html.haml b/app/views/layouts/nav/sidebar/_project.html.haml
index 759d6ff68ea..f82207559a3 100644
--- a/app/views/layouts/nav/sidebar/_project.html.haml
+++ b/app/views/layouts/nav/sidebar/_project.html.haml
@@ -272,6 +272,11 @@
               = sprite_icon('users')
             %span.nav-item-name
               Members
+          %ul.sidebar-sub-level-items.is-fly-out-only
+            = nav_link(path: %w[members#show], html_options: { class: "fly-out-top-item" } ) do
+              = link_to project_settings_members_path(@project) do
+                %strong.fly-out-top-item-name
+                  #{ _('Members') }
 
       = render 'shared/sidebar_toggle_button'
 
diff --git a/app/views/projects/_readme.html.haml b/app/views/projects/_readme.html.haml
new file mode 100644
index 00000000000..44aa9eb3826
--- /dev/null
+++ b/app/views/projects/_readme.html.haml
@@ -0,0 +1,23 @@
+- if (readme = @repository.readme) && readme.rich_viewer
+  %article.file-holder.readme-holder{ id: 'readme', class: ("limited-width-container" unless fluid_layout) }
+    .js-file-title.file-title
+      = blob_icon readme.mode, readme.name
+      = link_to project_blob_path(@project, tree_join(@ref, readme.path)) do
+        %strong
+          = readme.name
+    = render 'projects/blob/viewer', viewer: readme.rich_viewer, viewer_url: namespace_project_blob_path(@project.namespace, @project, tree_join(@ref, readme.path), viewer: :rich, format: :json)
+
+- else
+  .row-content-block.second-block.center
+    %h3.page-title
+      This project does not have a README yet
+    - if can?(current_user, :push_code, @project)
+      %p
+        A
+        %code README
+        file contains information about other files in a repository and is commonly
+        distributed with computer software, forming part of its documentation.
+      %p
+        We recommend you to
+        = link_to "add a README", add_special_file_path(@project, file_name: 'README.md'), class: 'underlined-link'
+        file to the repository and GitLab will render it here instead of this message.
diff --git a/app/views/projects/blob/_editor.html.haml b/app/views/projects/blob/_editor.html.haml
index 4b344b2edb9..7777f55ddd7 100644
--- a/app/views/projects/blob/_editor.html.haml
+++ b/app/views/projects/blob/_editor.html.haml
@@ -1,6 +1,6 @@
 - action = current_action?(:edit) || current_action?(:update) ? 'edit' : 'create'
 
-.file-holder.file.append-bottom-default
+.file-holder-bottom-radius.file-holder.file.append-bottom-default
   .js-file-title.file-title.clearfix{ data: { current_action: action } }
     .editor-ref
       = icon('code-fork')
diff --git a/app/views/projects/clusters/_advanced_settings.html.haml b/app/views/projects/clusters/_advanced_settings.html.haml
new file mode 100644
index 00000000000..6c162481dd8
--- /dev/null
+++ b/app/views/projects/clusters/_advanced_settings.html.haml
@@ -0,0 +1,14 @@
+- if can?(current_user, :admin_cluster, @cluster)
+  .append-bottom-20
+    %label.append-bottom-10
+      = s_('ClusterIntegration|Google Container Engine')
+    %p
+      - link_gke = link_to(s_('ClusterIntegration|Google Container Engine'), @cluster.gke_cluster_url, target: '_blank', rel: 'noopener noreferrer')
+      = s_('ClusterIntegration|Manage your cluster by visiting %{link_gke}').html_safe % { link_gke: link_gke }
+
+  .well.form-group
+    %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 project.')
+    = 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 Container Engine"})
diff --git a/app/views/projects/clusters/login.html.haml b/app/views/projects/clusters/login.html.haml
index ae132672b7e..fde030b500b 100644
--- a/app/views/projects/clusters/login.html.haml
+++ b/app/views/projects/clusters/login.html.haml
@@ -10,7 +10,7 @@
   .col-sm-8.col-sm-offset-4.signin-with-google
     - if @authorize_url
       = link_to @authorize_url do
-        = image_tag('auth_buttons/signin_with_google.png')
+        = image_tag('auth_buttons/signin_with_google.png', width: '191px')
     - else
       - link = link_to(s_('ClusterIntegration|properly configured'), help_page_path("integration/google"), target: '_blank', rel: 'noopener noreferrer')
       = s_('Google authentication is not %{link_to_documentation}. Ask your GitLab administrator if you want to use this service.').html_safe % { link_to_documentation: link }
diff --git a/app/views/projects/clusters/show.html.haml b/app/views/projects/clusters/show.html.haml
index aee6f904a62..ff76abc3553 100644
--- a/app/views/projects/clusters/show.html.haml
+++ b/app/views/projects/clusters/show.html.haml
@@ -1,24 +1,37 @@
+- @content_class = "limit-container-width" unless fluid_layout
 - breadcrumb_title "Cluster"
 - page_title _("Cluster")
 
+- expanded = Rails.env.test?
+
 - status_path = status_namespace_project_cluster_path(@cluster.project.namespace, @cluster.project, @cluster.id, format: :json) if can?(current_user, :admin_cluster, @cluster) && @cluster.on_creation?
-.row.prepend-top-default.edit-cluster-form.js-edit-cluster-form{ data: { status_path: status_path,
+.edit-cluster-form.js-edit-cluster-form{ data: { status_path: status_path,
   toggle_status: @cluster.enabled? ? 'true': 'false',
   cluster_status: @cluster.status_name,
   cluster_status_reason: @cluster.status_reason } }
-  .col-sm-4
-    = render 'sidebar'
-  .col-sm-8
-    %label.append-bottom-10{ for: 'enable-cluster-integration' }
-      = s_('ClusterIntegration|Enable cluster integration')
-    %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.')
+
+  %section.settings
+    %h4= s_('ClusterIntegration|Enable cluster integration')
+    .settings-content.expanded
+
+      .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 Container Engine')
+        %p.js-error-reason
+
+      .hidden.js-cluster-creating.alert.alert-info.alert-block.append-bottom-10{ role: 'alert' }
+        = s_('ClusterIntegration|Cluster is being created on Google Container Engine...')
+
+      .hidden.js-cluster-success.alert.alert-success.alert-block.append-bottom-10{ role: 'alert' }
+        = s_('ClusterIntegration|Cluster was successfully created on Google Container Engine')
+
+      %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 enabled for this project.')
-      - else
-        = s_('ClusterIntegration|Cluster integration is disabled for this project.')
+          = s_('ClusterIntegration|Cluster integration is disabled for this project.')
 
     = form_for [@project.namespace.becomes(Namespace), @project, @cluster] do |field|
       = form_errors(@cluster)
@@ -36,35 +49,28 @@
           .form-group
             = field.submit s_('ClusterIntegration|Save'), class: 'btn btn-success'
 
-    - if can?(current_user, :admin_cluster, @cluster)
-      %label.append-bottom-10{ for: 'google-container-engine' }
-        = s_('ClusterIntegration|Google Container Engine')
-      %p
-        - link_gke = link_to(s_('ClusterIntegration|Google Container Engine'), @cluster.gke_cluster_url, target: '_blank', rel: 'noopener noreferrer')
-        = s_('ClusterIntegration|Manage your cluster by visiting %{link_gke}').html_safe % { link_gke: link_gke }
+  %section.settings#js-cluster-details
+    .settings-header
+      %h4= s_('ClusterIntegration|Cluster details')
+      %button.btn.js-settings-toggle
+        = expanded ? 'Collapse' : 'Expand'
+      %p= s_('ClusterIntegration|See and edit the details for your cluster')
 
-      .hidden.js-cluster-error.alert.alert-danger.alert-block{ role: 'alert' }
-        = s_('ClusterIntegration|Something went wrong while creating your cluster on Google Container Engine')
-        %p.js-error-reason
-
-      .hidden.js-cluster-creating.alert.alert-info.alert-block{ role: 'alert' }
-        = s_('ClusterIntegration|Cluster is being created on Google Container Engine...')
-
-      .hidden.js-cluster-success.alert.alert-success.alert-block{ role: 'alert' }
-        = s_('ClusterIntegration|Cluster was successfully created on Google Container Engine')
+    .settings-content.no-animate{ class: ('expanded' if expanded) }
 
-    .form_group.append-bottom-20
-      %label.append-bottom-10{ for: 'cluter-name' }
-        = s_('ClusterIntegration|Cluster name')
-      .input-group
-        %input.form-control.cluster-name{ value: @cluster.gcp_cluster_name, disabled: true }
-        %span.input-group-addon.clipboard-addon
-          = clipboard_button(text: @cluster.gcp_cluster_name, title: s_('ClusterIntegration|Copy cluster name'))
+      .form_group.append-bottom-20
+        %label.append-bottom-10{ for: 'cluter-name' }
+          = s_('ClusterIntegration|Cluster name')
+        .input-group
+          %input.form-control.cluster-name{ value: @cluster.gcp_cluster_name, disabled: true }
+          %span.input-group-addon.clipboard-addon
+            = clipboard_button(text: @cluster.gcp_cluster_name, title: s_('ClusterIntegration|Copy cluster name'))
 
-    - if can?(current_user, :admin_cluster, @cluster)
-      .well.form_group
-        %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 project.')
-        = 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 Container Engine"})
+  %section.settings#js-cluster-advanced-settings
+    .settings-header
+      %h4= s_('ClusterIntegration|Advanced settings')
+      %button.btn.js-settings-toggle
+        = expanded ? 'Collapse' : 'Expand'
+      %p= s_('ClusterIntegration|Manage Cluster integration on your GitLab project')
+    .settings-content.no-animate{ class: ('expanded' if expanded) }
+      = render 'advanced_settings'
diff --git a/app/views/projects/empty.html.haml b/app/views/projects/empty.html.haml
index 3f3ce10419f..c9956183e12 100644
--- a/app/views/projects/empty.html.haml
+++ b/app/views/projects/empty.html.haml
@@ -24,10 +24,15 @@
     %p
       You will need to be owner or have the master permission level for the initial push, as the master branch is automatically protected.
 
+    - if show_auto_devops_callout?(@project)
+      %p
+        - link = link_to(s_('AutoDevOps|Auto DevOps (Beta)'), project_settings_ci_cd_path(@project, anchor: 'js-general-pipeline-settings'))
+        = s_('AutoDevOps|You can activate %{link_to_settings} for this project.').html_safe % { link_to_settings: link }
+      %p
+        = s_('AutoDevOps|It will automatically build, test, and deploy your application based on a predefined CI/CD configuration.')
+
 - if can?(current_user, :push_code, @project)
   %div{ class: container_class }
-    - if show_auto_devops_callout?(@project)
-      = render 'shared/auto_devops_callout'
     .prepend-top-20
     .empty_wrapper
       %h3.page-title-empty
diff --git a/app/views/projects/jobs/_sidebar.html.haml b/app/views/projects/jobs/_sidebar.html.haml
index d5c6d329ce4..7da4ffd5e43 100644
--- a/app/views/projects/jobs/_sidebar.html.haml
+++ b/app/views/projects/jobs/_sidebar.html.haml
@@ -4,8 +4,10 @@
   .sidebar-container
     .blocks-container
       .block
-        %strong
+        %strong.prepend-top-10
           = @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
         %a.gutter-toggle.pull-right.visible-xs-block.visible-sm-block.js-sidebar-build-toggle{ href: "#", 'aria-label': 'Toggle Sidebar', role: 'button' }
           = icon('angle-double-right')
 
diff --git a/app/views/projects/merge_requests/index.html.haml b/app/views/projects/merge_requests/index.html.haml
index 6b8dcb3e60b..8da2243adef 100644
--- a/app/views/projects/merge_requests/index.html.haml
+++ b/app/views/projects/merge_requests/index.html.haml
@@ -13,8 +13,6 @@
 
 - if @project.merge_requests.exists?
   %div{ class: container_class }
-    - if show_auto_devops_callout?(@project)
-      = render 'shared/auto_devops_callout'
     .top-area
       = render 'shared/issuable/nav', type: :merge_requests
       .nav-controls
diff --git a/app/views/projects/new.html.haml b/app/views/projects/new.html.haml
index 0a835dcdeb0..0a7880ce4cd 100644
--- a/app/views/projects/new.html.haml
+++ b/app/views/projects/new.html.haml
@@ -54,6 +54,10 @@
                     = f.label :visibility_level, class: 'label-light' do #the label here seems wrong
                       Import project from
                     .import-buttons
+                      - if gitlab_project_import_enabled?
+                        .import_gitlab_project.has-tooltip{ data: { container: 'body' } }
+                          = link_to new_import_gitlab_project_path, class: 'btn btn_import_gitlab_project project-submit' do
+                            = icon('gitlab', text: 'GitLab export')
                       %div
                         - if github_import_enabled?
                           = link_to new_import_github_path, class: 'btn import_github' do
@@ -87,10 +91,6 @@
                         - if git_import_enabled?
                           %button.btn.js-toggle-button.import_git{ type: "button" }
                             = icon('git', text: 'Repo by URL')
-                      - if gitlab_project_import_enabled?
-                        .import_gitlab_project.has-tooltip{ data: { container: 'body' } }
-                          = link_to new_import_gitlab_project_path, class: 'btn btn_import_gitlab_project project-submit' do
-                            = icon('gitlab', text: 'GitLab export')
                 .col-lg-12
                   .js-toggle-content.hide.toggle-import-form
                     %hr
diff --git a/app/views/projects/pipelines/index.html.haml b/app/views/projects/pipelines/index.html.haml
index a10a7c23924..f8627a3818b 100644
--- a/app/views/projects/pipelines/index.html.haml
+++ b/app/views/projects/pipelines/index.html.haml
@@ -2,8 +2,6 @@
 - page_title "Pipelines"
 
 %div{ 'class' => container_class }
-  - if show_auto_devops_callout?(@project)
-    = render 'shared/auto_devops_callout'
   #pipelines-list-vue{ data: { endpoint: project_pipelines_path(@project, format: :json),
     "help-page-path" => help_page_path('ci/quick_start/README'),
     "help-auto-devops-path" => help_page_path('topics/autodevops/index.md'),
diff --git a/app/views/projects/tree/show.html.haml b/app/views/projects/tree/show.html.haml
index 0cc6674842a..745a6040488 100644
--- a/app/views/projects/tree/show.html.haml
+++ b/app/views/projects/tree/show.html.haml
@@ -12,7 +12,5 @@
     = webpack_bundle_tag 'repo'
 
 %div{ class: [container_class, ("limit-container-width" unless fluid_layout)] }
-  - if show_auto_devops_callout?(@project) && !show_new_repo?
-    = render 'shared/auto_devops_callout'
   = render 'projects/last_push'
   = render 'projects/files', commit: @last_commit, project: @project, ref: @ref, content_url: project_tree_path(@project, @id)
diff --git a/app/views/shared/_auto_devops_callout.html.haml b/app/views/shared/_auto_devops_callout.html.haml
index 7c633175a06..934d65e8b42 100644
--- a/app/views/shared/_auto_devops_callout.html.haml
+++ b/app/views/shared/_auto_devops_callout.html.haml
@@ -1,15 +1,16 @@
-.user-callout{ data: { uid: 'auto_devops_settings_dismissed', project_path: project_path(@project) } }
-  .bordered-box.landing.content-block
-    %button.btn.btn-default.close.js-close-callout{ type: 'button',
-      'aria-label' => 'Dismiss Auto DevOps box' }
-      = icon('times', class: 'dismiss-icon', 'aria-hidden' => 'true')
-    .svg-container
-      = custom_icon('icon_autodevops')
-    .user-callout-copy
-      %h4= s_('AutoDevOps|Auto DevOps (Beta)')
-      %p= s_('AutoDevOps|Auto DevOps can be activated for this project. It will automatically build, test, and deploy your application based on a predefined CI/CD configuration.')
-      %p
-        - link = link_to(s_('AutoDevOps|Auto DevOps documentation'), help_page_path('topics/autodevops/index.md'), target: '_blank', rel: 'noopener noreferrer')
-        = s_('AutoDevOps|Learn more in the %{link_to_documentation}').html_safe % { link_to_documentation: link }
+.js-autodevops-banner.banner-callout.banner-non-empty-state.append-bottom-20{ data: { uid: 'auto_devops_settings_dismissed', project_path: project_path(@project) } }
+  .banner-graphic
+    = custom_icon('icon_autodevops')
 
-      = link_to s_('AutoDevOps|Enable in settings'), project_settings_ci_cd_path(@project, anchor: 'js-general-pipeline-settings'), class: 'btn btn-primary js-close-callout'
+  .prepend-top-10.prepend-left-10.append-bottom-10
+    %h5= s_('AutoDevOps|Auto DevOps (Beta)')
+    %p= s_('AutoDevOps|It will automatically build, test, and deploy your application based on a predefined CI/CD configuration.')
+    %p
+      - link = link_to(s_('AutoDevOps|Auto DevOps documentation'), help_page_path('topics/autodevops/index.md'), target: '_blank', rel: 'noopener noreferrer')
+      = s_('AutoDevOps|Learn more in the %{link_to_documentation}').html_safe % { link_to_documentation: link }
+    .prepend-top-10
+      = link_to s_('AutoDevOps|Enable in settings'), project_settings_ci_cd_path(@project, anchor: 'js-general-pipeline-settings'), class: 'btn js-close-callout'
+
+  %button.btn-transparent.banner-close.close.js-close-callout{ type: 'button',
+  'aria-label' => 'Dismiss Auto DevOps box' }
+    = icon('times', class: 'dismiss-icon', 'aria-hidden' => 'true')
diff --git a/app/views/shared/boards/components/sidebar/_labels.html.haml b/app/views/shared/boards/components/sidebar/_labels.html.haml
index 1f540bdaf93..dfc0f9be321 100644
--- a/app/views/shared/boards/components/sidebar/_labels.html.haml
+++ b/app/views/shared/boards/components/sidebar/_labels.html.haml
@@ -25,7 +25,7 @@
             show_any: "true",
             project_id: @project&.try(:id),
             labels: labels_filter_path(false),
-            namespace_path: @project.try(:namespace).try(:full_path),
+            namespace_path: @namespace_path,
             project_path: @project.try(:path) },
           ":data-issue-update" => "'#{build_issue_link_base}/' + issue.iid + '.json'" }
           %span.dropdown-toggle-text
diff --git a/app/views/shared/groups/_dropdown.html.haml b/app/views/shared/groups/_dropdown.html.haml
index 760370a6984..8e6747ca740 100644
--- a/app/views/shared/groups/_dropdown.html.haml
+++ b/app/views/shared/groups/_dropdown.html.haml
@@ -1,18 +1,32 @@
-.dropdown.inline.js-group-filter-dropdown-wrap
+- show_archive_options = local_assigns.fetch(:show_archive_options, false)
+- if @sort.present?
+  - default_sort_by = @sort
+- else
+  - if params[:sort]
+    - default_sort_by = params[:sort]
+  - else
+    - default_sort_by = sort_value_recently_created
+
+.dropdown.inline.js-group-filter-dropdown-wrap.append-right-10
   %button.dropdown-toggle{ type: 'button', 'data-toggle' => 'dropdown' }
     %span.dropdown-label
-      - if @sort.present?
-        = sort_options_hash[@sort]
-      - else
-        = sort_title_recently_created
+      = sort_options_hash[default_sort_by]
     = icon('chevron-down')
-  %ul.dropdown-menu.dropdown-menu-align-right
-    %li
-      = link_to filter_groups_path(sort: sort_value_recently_created) do
-        = sort_title_recently_created
-      = link_to filter_groups_path(sort: sort_value_oldest_created) do
-        = sort_title_oldest_created
-      = link_to filter_groups_path(sort: sort_value_recently_updated) do
-        = sort_title_recently_updated
-      = link_to filter_groups_path(sort: sort_value_oldest_updated) do
-        = sort_title_oldest_updated
+  %ul.dropdown-menu.dropdown-menu-align-right.dropdown-menu-selectable
+    %li.dropdown-header
+      = _("Sort by")
+    - groups_sort_options_hash.each do |value, title|
+      %li.js-filter-sort-order
+        = link_to filter_groups_path(sort: value), class: ("is-active" if default_sort_by == value) do
+          = title
+    - if show_archive_options
+      %li.divider
+      %li.js-filter-archived-projects
+        = link_to group_children_path(@group, archived: nil), class: ("is-active" unless params[:archived].present?) do
+          Hide archived projects
+      %li.js-filter-archived-projects
+        = link_to group_children_path(@group, archived: true), class: ("is-active" if Gitlab::Utils.to_boolean(params[:archived])) do
+          Show archived projects
+      %li.js-filter-archived-projects
+        = link_to group_children_path(@group, archived: 'only'), class: ("is-active" if params[:archived] == 'only') do
+          Show archived projects only
diff --git a/app/views/shared/groups/_empty_state.html.haml b/app/views/shared/groups/_empty_state.html.haml
new file mode 100644
index 00000000000..13bb4baee3f
--- /dev/null
+++ b/app/views/shared/groups/_empty_state.html.haml
@@ -0,0 +1,7 @@
+.groups-empty-state
+  = custom_icon("icon_empty_groups")
+
+  .text-content
+    %h4= s_("GroupsEmptyState|A group is a collection of several projects.")
+    %p= s_("GroupsEmptyState|If you organize your projects under a group, it works like a folder.")
+    %p= s_("GroupsEmptyState|You can manage your group member’s permissions and access to each project in the group.")
diff --git a/app/views/shared/groups/_group.html.haml b/app/views/shared/groups/_group.html.haml
index 63f62eb476e..059dd24be6d 100644
--- a/app/views/shared/groups/_group.html.haml
+++ b/app/views/shared/groups/_group.html.haml
@@ -11,7 +11,7 @@
         = link_to edit_group_path(group), class: "btn" do
           = icon('cogs')
 
-      = link_to leave_group_group_members_path(group), data: { confirm: leave_confirmation_message(group) }, method: :delete, class: "btn", title: 'Leave this group' do
+      = link_to leave_group_group_members_path(group), data: { confirm: leave_confirmation_message(group) }, method: :delete, class: "btn", title: s_("GroupsTree|Leave this group") do
         = icon('sign-out')
 
   .stats
diff --git a/app/views/shared/groups/_list.html.haml b/app/views/shared/groups/_list.html.haml
index 427595c47a5..aec8ecd1714 100644
--- a/app/views/shared/groups/_list.html.haml
+++ b/app/views/shared/groups/_list.html.haml
@@ -3,4 +3,4 @@
     - groups.each_with_index do |group, i|
       = render "shared/groups/group", group: group
 - else
-  .nothing-here-block No groups found
+  .nothing-here-block= s_("GroupsEmptyState|No groups found")
diff --git a/app/views/shared/groups/_search_form.html.haml b/app/views/shared/groups/_search_form.html.haml
index ad7a7faedf1..3f91263089a 100644
--- a/app/views/shared/groups/_search_form.html.haml
+++ b/app/views/shared/groups/_search_form.html.haml
@@ -1,2 +1,2 @@
-= form_tag request.path, method: :get, class: 'group-filter-form', id: 'group-filter-form' do |f|
-  = search_field_tag :filter_groups, params[:filter_groups], placeholder: 'Filter by name...', class: 'group-filter-form-field form-control input-short js-groups-list-filter', spellcheck: false, id: 'group-filter-form-field', tabindex: "2"
+= form_tag request.path, method: :get, class: 'group-filter-form append-right-10', id: 'group-filter-form' do |f|
+  = search_field_tag :filter, params[:filter], placeholder: s_('GroupsTree|Filter by name...'), class: 'group-filter-form-field form-control input-short js-groups-list-filter', spellcheck: false, id: 'group-filter-form-field', tabindex: "2"
diff --git a/app/views/shared/icons/_icon_autodevops.svg b/app/views/shared/icons/_icon_autodevops.svg
index 807ff27bb67..dde84e14048 100644
--- a/app/views/shared/icons/_icon_autodevops.svg
+++ b/app/views/shared/icons/_icon_autodevops.svg
@@ -1,4 +1,4 @@
-<svg xmlns="http://www.w3.org/2000/svg" width="189" height="179" viewBox="0 0 189 179">
+<svg xmlns="http://www.w3.org/2000/svg" width="189" height="110" viewBox="0 0 189 179">
   <g fill="none" fill-rule="evenodd">
     <path fill="#FFFFFF" fill-rule="nonzero" d="M110.160166,47.6956996 L160.160166,47.6956996 C165.683013,47.6956996 170.160166,52.1728521 170.160166,57.6956996 L170.160166,117.6957 C170.160166,123.218547 165.683013,127.6957 160.160166,127.6957 L110.160166,127.6957 C104.637318,127.6957 100.160166,123.218547 100.160166,117.6957 L100.160166,57.6956996 C100.160166,52.1728521 104.637318,47.6956996 110.160166,47.6956996 Z" transform="rotate(10 135.16 87.696)"/>
     <path fill="#EEEEEE" fill-rule="nonzero" d="M110.160166,51.6956996 C106.846457,51.6956996 104.160166,54.3819911 104.160166,57.6956996 L104.160166,117.6957 C104.160166,121.009408 106.846457,123.6957 110.160166,123.6957 L160.160166,123.6957 C163.473874,123.6957 166.160166,121.009408 166.160166,117.6957 L166.160166,57.6956996 C166.160166,54.3819911 163.473874,51.6956996 160.160166,51.6956996 L110.160166,51.6956996 Z M110.160166,47.6956996 L160.160166,47.6956996 C165.683013,47.6956996 170.160166,52.1728521 170.160166,57.6956996 L170.160166,117.6957 C170.160166,123.218547 165.683013,127.6957 160.160166,127.6957 L110.160166,127.6957 C104.637318,127.6957 100.160166,123.218547 100.160166,117.6957 L100.160166,57.6956996 C100.160166,52.1728521 104.637318,47.6956996 110.160166,47.6956996 Z" transform="rotate(10 135.16 87.696)"/>
@@ -29,7 +29,7 @@
     </g>
     <g fill-rule="nonzero" transform="rotate(15 -315.035 277.714)">
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diff --git a/app/views/shared/projects/_dropdown.html.haml b/app/views/shared/projects/_dropdown.html.haml
index 80432a73e4e..3d917346f6b 100644
--- a/app/views/shared/projects/_dropdown.html.haml
+++ b/app/views/shared/projects/_dropdown.html.haml
@@ -1,5 +1,5 @@
 - @sort ||= sort_value_latest_activity
-.dropdown
+.dropdown.js-project-filter-dropdown-wrap
   - toggle_text = projects_sort_options_hash[@sort]
   = dropdown_toggle(toggle_text, { toggle: 'dropdown' }, { id: 'sort-projects-dropdown' })
   %ul.dropdown-menu.dropdown-menu-align-right.dropdown-menu-selectable
diff --git a/app/views/shared/repo/_repo.html.haml b/app/views/shared/repo/_repo.html.haml
index 87fa2007d16..7185f5bcc5b 100644
--- a/app/views/shared/repo/_repo.html.haml
+++ b/app/views/shared/repo/_repo.html.haml
@@ -1,7 +1,10 @@
-#repo{ data: { url: content_url,
+#repo{ data: { root: @path.empty?.to_s,
+               url: content_url,
                project_name: project.name,
                refs_url: refs_project_path(project, format: :json),
                project_url: project_path(project),
                project_id: project.id,
+               blob_url: namespace_project_blob_path(project.namespace, project, '{{branch}}'),
+               new_mr_template_url: namespace_project_new_merge_request_path(project.namespace, project, merge_request: { source_branch: '{{source_branch}}' }),
                can_commit: (!!can_push_branch?(project, @ref)).to_s,
                on_top_of_branch: (!!on_top_of_branch?(project, @ref)).to_s } }