Merge branch 'master' of gitlab.com:gitlab-org/gitlab-ce into 2518-saved-configuration-for-issue-board

98 files changed, 2312 insertions, 1987 deletions

diff --git a/app/assets/javascripts/api.js b/app/assets/javascripts/api.js
index 242b3e2b990..d963101028a 100644
--- a/app/assets/javascripts/api.js
+++ b/app/assets/javascripts/api.js
@@ -16,6 +16,7 @@ const Api = {
   usersPath: '/api/:version/users.json',
   commitPath: '/api/:version/projects/:id/repository/commits',
   branchSinglePath: '/api/:version/projects/:id/repository/branches/:branch',
+  createBranchPath: '/api/:version/projects/:id/repository/branches',
 
   group(groupId, callback) {
     const url = Api.buildUrl(Api.groupPath)
diff --git a/app/assets/javascripts/boards/components/board_sidebar.js b/app/assets/javascripts/boards/components/board_sidebar.js
index 5d27518ac85..9ae5e270a4b 100644
--- a/app/assets/javascripts/boards/components/board_sidebar.js
+++ b/app/assets/javascripts/boards/components/board_sidebar.js
@@ -1,6 +1,5 @@
 /* eslint-disable comma-dangle, space-before-function-paren, no-new */
 /* global MilestoneSelect */
-/* global LabelsSelect */
 /* global Sidebar */
 
 import Vue from 'vue';
@@ -11,6 +10,7 @@ import Assignees from '../../sidebar/components/assignees/assignees';
 import DueDateSelectors from '../../due_date_select';
 import './sidebar/remove_issue';
 import IssuableContext from '../../issuable_context';
+import LabelsSelect from '../../labels_select';
 
 const Store = gl.issueBoards.BoardsStore;
 
diff --git a/app/assets/javascripts/clusters.js b/app/assets/javascripts/clusters.js
index 180aa30e98c..661870c226c 100644
--- a/app/assets/javascripts/clusters.js
+++ b/app/assets/javascripts/clusters.js
@@ -64,19 +64,16 @@ export default class Clusters {
     this.poll = new Poll({
       resource: this.service,
       method: 'fetchData',
-      successCallback: (data) => {
-        const { status, status_reason } = data.data;
-        this.updateContainer(status, status_reason);
-      },
-      errorCallback: () => {
-        Flash(s__('ClusterIntegration|Something went wrong on our end.'));
-      },
+      successCallback: data => this.handleSuccess(data),
+      errorCallback: () => Clusters.handleError(),
     });
 
     if (!Visibility.hidden()) {
       this.poll.makeRequest();
     } else {
-      this.service.fetchData();
+      this.service.fetchData()
+        .then(data => this.handleSuccess(data))
+        .catch(() => Clusters.handleError());
     }
 
     Visibility.change(() => {
@@ -88,6 +85,15 @@ export default class Clusters {
     });
   }
 
+  static handleError() {
+    Flash(s__('ClusterIntegration|Something went wrong on our end.'));
+  }
+
+  handleSuccess(data) {
+    const { status, status_reason } = data.data;
+    this.updateContainer(status, status_reason);
+  }
+
   hideAll() {
     this.errorContainer.classList.add('hidden');
     this.successContainer.classList.add('hidden');
diff --git a/app/assets/javascripts/dispatcher.js b/app/assets/javascripts/dispatcher.js
index b516fda84b9..5930868412b 100644
--- a/app/assets/javascripts/dispatcher.js
+++ b/app/assets/javascripts/dispatcher.js
@@ -3,7 +3,7 @@
 import IssuableIndex from './issuable_index';
 /* global Milestone */
 import IssuableForm from './issuable_form';
-/* global LabelsSelect */
+import LabelsSelect from './labels_select';
 /* global MilestoneSelect */
 /* global NewBranchForm */
 /* global NotificationsForm */
diff --git a/app/assets/javascripts/gl_dropdown.js b/app/assets/javascripts/gl_dropdown.js
index e8d8fef8579..c4202f92443 100644
--- a/app/assets/javascripts/gl_dropdown.js
+++ b/app/assets/javascripts/gl_dropdown.js
@@ -1,6 +1,7 @@
 /* eslint-disable func-names, no-underscore-dangle, space-before-function-paren, no-var, one-var, one-var-declaration-per-line, prefer-rest-params, max-len, vars-on-top, wrap-iife, no-unused-vars, quotes, no-shadow, no-cond-assign, prefer-arrow-callback, no-return-assign, no-else-return, camelcase, comma-dangle, no-lonely-if, guard-for-in, no-restricted-syntax, consistent-return, prefer-template, no-param-reassign, no-loop-func, no-mixed-operators */
 /* global fuzzaldrinPlus */
 import _ from 'underscore';
+import fuzzaldrinPlus from 'fuzzaldrin-plus';
 import { isObject } from './lib/utils/type_utility';
 
 var GitLabDropdown, GitLabDropdownFilter, GitLabDropdownRemote, GitLabDropdownInput;
diff --git a/app/assets/javascripts/header.js b/app/assets/javascripts/header.js
index ea2e2205077..33a352e158a 100644
--- a/app/assets/javascripts/header.js
+++ b/app/assets/javascripts/header.js
@@ -7,10 +7,12 @@ import { highCountTrim } from '~/lib/utils/text_utility';
  * @param {jQuery.Event} e
  * @param {String} count
  */
-$(document).on('todo:toggle', (e, count) => {
-  const parsedCount = parseInt(count, 10);
-  const $todoPendingCount = $('.todos-count');
+export default function initTodoToggle() {
+  $(document).on('todo:toggle', (e, count) => {
+    const parsedCount = parseInt(count, 10);
+    const $todoPendingCount = $('.todos-count');
 
-  $todoPendingCount.text(highCountTrim(parsedCount));
-  $todoPendingCount.toggleClass('hidden', parsedCount === 0);
-});
+    $todoPendingCount.text(highCountTrim(parsedCount));
+    $todoPendingCount.toggleClass('hidden', parsedCount === 0);
+  });
+}
diff --git a/app/assets/javascripts/init_issuable_sidebar.js b/app/assets/javascripts/init_issuable_sidebar.js
index 6f476f96f72..1191e0b895e 100644
--- a/app/assets/javascripts/init_issuable_sidebar.js
+++ b/app/assets/javascripts/init_issuable_sidebar.js
@@ -1,6 +1,6 @@
 /* eslint-disable no-new */
 /* global MilestoneSelect */
-/* global LabelsSelect */
+import LabelsSelect from './labels_select';
 import IssuableContext from './issuable_context';
 /* global Sidebar */
 
diff --git a/app/assets/javascripts/init_legacy_filters.js b/app/assets/javascripts/init_legacy_filters.js
index 1211c2c802c..1b265721581 100644
--- a/app/assets/javascripts/init_legacy_filters.js
+++ b/app/assets/javascripts/init_legacy_filters.js
@@ -1,15 +1,15 @@
 /* eslint-disable no-new */
-/* global LabelsSelect */
+import LabelsSelect from './labels_select';
 /* global MilestoneSelect */
-/* global IssueStatusSelect */
 /* global SubscriptionSelect */
 
 import UsersSelect from './users_select';
+import issueStatusSelect from './issue_status_select';
 
 export default () => {
   new UsersSelect();
   new LabelsSelect();
   new MilestoneSelect();
-  new IssueStatusSelect();
+  issueStatusSelect();
   new SubscriptionSelect();
 };
diff --git a/app/assets/javascripts/issuable_bulk_update_sidebar.js b/app/assets/javascripts/issuable_bulk_update_sidebar.js
index bb509089b1d..af6358953cf 100644
--- a/app/assets/javascripts/issuable_bulk_update_sidebar.js
+++ b/app/assets/javascripts/issuable_bulk_update_sidebar.js
@@ -1,14 +1,12 @@
 /* eslint-disable class-methods-use-this, no-new */
-/* global LabelsSelect */
 /* global MilestoneSelect */
-/* global IssueStatusSelect */
 /* global SubscriptionSelect */
 
 import IssuableBulkUpdateActions from './issuable_bulk_update_actions';
 import './milestone_select';
-import './issue_status_select';
+import issueStatusSelect from './issue_status_select';
 import './subscription_select';
-import './labels_select';
+import LabelsSelect from './labels_select';
 
 const HIDDEN_CLASS = 'hidden';
 const DISABLED_CONTENT_CLASS = 'disabled-content';
@@ -49,7 +47,7 @@ export default class IssuableBulkUpdateSidebar {
   initDropdowns() {
     new LabelsSelect();
     new MilestoneSelect();
-    new IssueStatusSelect();
+    issueStatusSelect();
     new SubscriptionSelect();
   }
 
diff --git a/app/assets/javascripts/issuable_context.js b/app/assets/javascripts/issuable_context.js
index 5bc7f8d9cb9..da99394ff90 100644
--- a/app/assets/javascripts/issuable_context.js
+++ b/app/assets/javascripts/issuable_context.js
@@ -2,11 +2,8 @@ import Cookies from 'js-cookie';
 import bp from './breakpoints';
 import UsersSelect from './users_select';
 
-const PARTICIPANTS_ROW_COUNT = 7;
-
 export default class IssuableContext {
   constructor(currentUser) {
-    this.initParticipants();
     this.userSelect = new UsersSelect(currentUser);
 
     $('select.select2').select2({
@@ -51,29 +48,4 @@ export default class IssuableContext {
       }
     });
   }
-
-  initParticipants() {
-    $(document).on('click', '.js-participants-more', this.toggleHiddenParticipants);
-    return $('.js-participants-author').each(function forEachAuthor(i) {
-      if (i >= PARTICIPANTS_ROW_COUNT) {
-        $(this).addClass('js-participants-hidden').hide();
-      }
-    });
-  }
-
-  toggleHiddenParticipants() {
-    const currentText = $(this).text().trim();
-    const lessText = $(this).data('less-text');
-    const originalText = $(this).data('original-text');
-
-    if (currentText === originalText) {
-      $(this).text(lessText);
-
-      if (gl.lazyLoader) gl.lazyLoader.loadCheck();
-    } else {
-      $(this).text(originalText);
-    }
-
-    $('.js-participants-hidden').toggle();
-  }
 }
diff --git a/app/assets/javascripts/issue.js b/app/assets/javascripts/issue.js
index 3fc29f9a661..acd5730cf3c 100644
--- a/app/assets/javascripts/issue.js
+++ b/app/assets/javascripts/issue.js
@@ -6,7 +6,7 @@ import TaskList from './task_list';
 import CreateMergeRequestDropdown from './create_merge_request_dropdown';
 import IssuablesHelper from './helpers/issuables_helper';
 
-class Issue {
+export default class Issue {
   constructor() {
     if ($('a.btn-close').length) {
       this.taskList = new TaskList({
@@ -147,5 +147,3 @@ class Issue {
     });
   }
 }
-
-export default Issue;
diff --git a/app/assets/javascripts/issue_status_select.js b/app/assets/javascripts/issue_status_select.js
index 56cb536dcde..03546f61d1f 100644
--- a/app/assets/javascripts/issue_status_select.js
+++ b/app/assets/javascripts/issue_status_select.js
@@ -1,34 +1,23 @@
-/* eslint-disable func-names, space-before-function-paren, wrap-iife, no-var, quotes, object-shorthand, no-unused-vars, no-shadow, one-var, one-var-declaration-per-line, comma-dangle, max-len */
-(function() {
-  this.IssueStatusSelect = (function() {
-    function IssueStatusSelect() {
-      $('.js-issue-status').each(function(i, el) {
-        var fieldName;
-        fieldName = $(el).data("field-name");
-        return $(el).glDropdown({
-          selectable: true,
-          fieldName: fieldName,
-          toggleLabel: (function(_this) {
-            return function(selected, el, instance) {
-              var $item, label;
-              label = 'Author';
-              $item = instance.dropdown.find('.is-active');
-              if ($item.length) {
-                label = $item.text();
-              }
-              return label;
-            };
-          })(this),
-          clicked: function(options) {
-            return options.e.preventDefault();
-          },
-          id: function(obj, el) {
-            return $(el).data("id");
-          }
-        });
-      });
-    }
-
-    return IssueStatusSelect;
-  })();
-}).call(window);
+export default function issueStatusSelect() {
+  $('.js-issue-status').each((i, el) => {
+    const fieldName = $(el).data('field-name');
+    return $(el).glDropdown({
+      selectable: true,
+      fieldName,
+      toggleLabel(selected, element, instance) {
+        let label = 'Author';
+        const $item = instance.dropdown.find('.is-active');
+        if ($item.length) {
+          label = $item.text();
+        }
+        return label;
+      },
+      clicked(options) {
+        return options.e.preventDefault();
+      },
+      id(obj, element) {
+        return $(element).data('id');
+      },
+    });
+  });
+}
diff --git a/app/assets/javascripts/labels_select.js b/app/assets/javascripts/labels_select.js
index 1e52963b1dd..c1a01164559 100644
--- a/app/assets/javascripts/labels_select.js
+++ b/app/assets/javascripts/labels_select.js
@@ -6,479 +6,475 @@ import IssuableBulkUpdateActions from './issuable_bulk_update_actions';
 import DropdownUtils from './filtered_search/dropdown_utils';
 import CreateLabelDropdown from './create_label';
 
-(function() {
-  this.LabelsSelect = (function() {
-    function LabelsSelect(els, options = {}) {
-      var _this, $els;
-      _this = this;
+export default class LabelsSelect {
+  constructor(els, options = {}) {
+    var _this, $els;
+    _this = this;
 
-      $els = $(els);
+    $els = $(els);
 
-      if (!els) {
-        $els = $('.js-label-select');
-      }
+    if (!els) {
+      $els = $('.js-label-select');
+    }
 
-      $els.each(function(i, dropdown) {
-        var $block, $colorPreview, $dropdown, $form, $loading, $selectbox, $sidebarCollapsedValue, $value, abilityName, defaultLabel, enableLabelCreateButton, issueURLSplit, issueUpdateURL, labelHTMLTemplate, labelNoneHTMLTemplate, labelUrl, namespacePath, projectPath, saveLabelData, selectedLabel, showAny, showNo, $sidebarLabelTooltip, initialSelected, $toggleText, fieldName, useId, propertyName, showMenuAbove, $container, $dropdownContainer;
-        $dropdown = $(dropdown);
-        $dropdownContainer = $dropdown.closest('.labels-filter');
-        $toggleText = $dropdown.find('.dropdown-toggle-text');
-        namespacePath = $dropdown.data('namespace-path');
-        projectPath = $dropdown.data('project-path');
-        labelUrl = $dropdown.data('labels');
-        issueUpdateURL = $dropdown.data('issueUpdate');
-        selectedLabel = $dropdown.data('selected');
-        if ((selectedLabel != null) && !$dropdown.hasClass('js-multiselect')) {
-          selectedLabel = selectedLabel.split(',');
-        }
-        showNo = $dropdown.data('show-no');
-        showAny = $dropdown.data('show-any');
-        showMenuAbove = $dropdown.data('showMenuAbove');
-        defaultLabel = $dropdown.data('default-label');
-        abilityName = $dropdown.data('ability-name');
-        $selectbox = $dropdown.closest('.selectbox');
-        $block = $selectbox.closest('.block');
-        $form = $dropdown.closest('form, .js-issuable-update');
-        $sidebarCollapsedValue = $block.find('.sidebar-collapsed-icon span');
-        $sidebarLabelTooltip = $block.find('.js-sidebar-labels-tooltip');
-        $value = $block.find('.value');
-        $loading = $block.find('.block-loading').fadeOut();
-        fieldName = $dropdown.data('field-name');
-        useId = $dropdown.is('.js-issuable-form-dropdown, .js-filter-bulk-update, .js-label-sidebar-dropdown');
-        propertyName = useId ? 'id' : 'title';
-        initialSelected = $selectbox
-          .find('input[name="' + $dropdown.data('field-name') + '"]')
-          .map(function () {
-            return this.value;
-          }).get();
-        if (issueUpdateURL != null) {
-          issueURLSplit = issueUpdateURL.split('/');
-        }
-        if (issueUpdateURL) {
-          labelHTMLTemplate = _.template('<% _.each(labels, function(label){ %> <a href="<%- ["",issueURLSplit[1], issueURLSplit[2],""].join("/") %>issues?label_name[]=<%- encodeURIComponent(label.title) %>"> <span class="label has-tooltip color-label" title="<%- label.description %>" style="background-color: <%- label.color %>; color: <%- label.text_color %>;"> <%- label.title %> </span> </a> <% }); %>');
-          labelNoneHTMLTemplate = '<span class="no-value">None</span>';
-        }
-        const handleClick = options.handleClick;
+    $els.each(function(i, dropdown) {
+      var $block, $colorPreview, $dropdown, $form, $loading, $selectbox, $sidebarCollapsedValue, $value, abilityName, defaultLabel, enableLabelCreateButton, issueURLSplit, issueUpdateURL, labelHTMLTemplate, labelNoneHTMLTemplate, labelUrl, namespacePath, projectPath, saveLabelData, selectedLabel, showAny, showNo, $sidebarLabelTooltip, initialSelected, $toggleText, fieldName, useId, propertyName, showMenuAbove, $container, $dropdownContainer;
+      $dropdown = $(dropdown);
+      $dropdownContainer = $dropdown.closest('.labels-filter');
+      $toggleText = $dropdown.find('.dropdown-toggle-text');
+      namespacePath = $dropdown.data('namespace-path');
+      projectPath = $dropdown.data('project-path');
+      labelUrl = $dropdown.data('labels');
+      issueUpdateURL = $dropdown.data('issueUpdate');
+      selectedLabel = $dropdown.data('selected');
+      if ((selectedLabel != null) && !$dropdown.hasClass('js-multiselect')) {
+        selectedLabel = selectedLabel.split(',');
+      }
+      showNo = $dropdown.data('show-no');
+      showAny = $dropdown.data('show-any');
+      showMenuAbove = $dropdown.data('showMenuAbove');
+      defaultLabel = $dropdown.data('default-label');
+      abilityName = $dropdown.data('ability-name');
+      $selectbox = $dropdown.closest('.selectbox');
+      $block = $selectbox.closest('.block');
+      $form = $dropdown.closest('form, .js-issuable-update');
+      $sidebarCollapsedValue = $block.find('.sidebar-collapsed-icon span');
+      $sidebarLabelTooltip = $block.find('.js-sidebar-labels-tooltip');
+      $value = $block.find('.value');
+      $loading = $block.find('.block-loading').fadeOut();
+      fieldName = $dropdown.data('field-name');
+      useId = $dropdown.is('.js-issuable-form-dropdown, .js-filter-bulk-update, .js-label-sidebar-dropdown');
+      propertyName = useId ? 'id' : 'title';
+      initialSelected = $selectbox
+        .find('input[name="' + $dropdown.data('field-name') + '"]')
+        .map(function () {
+          return this.value;
+        }).get();
+      if (issueUpdateURL != null) {
+        issueURLSplit = issueUpdateURL.split('/');
+      }
+      if (issueUpdateURL) {
+        labelHTMLTemplate = _.template('<% _.each(labels, function(label){ %> <a href="<%- ["",issueURLSplit[1], issueURLSplit[2],""].join("/") %>issues?label_name[]=<%- encodeURIComponent(label.title) %>"> <span class="label has-tooltip color-label" title="<%- label.description %>" style="background-color: <%- label.color %>; color: <%- label.text_color %>;"> <%- label.title %> </span> </a> <% }); %>');
+        labelNoneHTMLTemplate = '<span class="no-value">None</span>';
+      }
+      const handleClick = options.handleClick;
 
-        $sidebarLabelTooltip.tooltip();
+      $sidebarLabelTooltip.tooltip();
 
-        if ($dropdown.closest('.dropdown').find('.dropdown-new-label').length) {
-          new CreateLabelDropdown($dropdown.closest('.dropdown').find('.dropdown-new-label'), namespacePath, projectPath);
-        }
+      if ($dropdown.closest('.dropdown').find('.dropdown-new-label').length) {
+        new CreateLabelDropdown($dropdown.closest('.dropdown').find('.dropdown-new-label'), namespacePath, projectPath);
+      }
 
-        saveLabelData = function() {
-          var data, selected;
-          selected = $dropdown.closest('.selectbox').find("input[name='" + fieldName + "']").map(function() {
-            return this.value;
-          }).get();
+      saveLabelData = function() {
+        var data, selected;
+        selected = $dropdown.closest('.selectbox').find("input[name='" + fieldName + "']").map(function() {
+          return this.value;
+        }).get();
 
-          if (_.isEqual(initialSelected, selected)) return;
-          initialSelected = selected;
+        if (_.isEqual(initialSelected, selected)) return;
+        initialSelected = selected;
 
-          data = {};
-          data[abilityName] = {};
-          data[abilityName].label_ids = selected;
-          if (!selected.length) {
-            data[abilityName].label_ids = [''];
+        data = {};
+        data[abilityName] = {};
+        data[abilityName].label_ids = selected;
+        if (!selected.length) {
+          data[abilityName].label_ids = [''];
+        }
+        $loading.removeClass('hidden').fadeIn();
+        $dropdown.trigger('loading.gl.dropdown');
+        return $.ajax({
+          type: 'PUT',
+          url: issueUpdateURL,
+          dataType: 'JSON',
+          data: data
+        }).done(function(data) {
+          var labelCount, template, labelTooltipTitle, labelTitles;
+          $loading.fadeOut();
+          $dropdown.trigger('loaded.gl.dropdown');
+          $selectbox.hide();
+          data.issueURLSplit = issueURLSplit;
+          labelCount = 0;
+          if (data.labels.length) {
+            template = labelHTMLTemplate(data);
+            labelCount = data.labels.length;
           }
-          $loading.removeClass('hidden').fadeIn();
-          $dropdown.trigger('loading.gl.dropdown');
-          return $.ajax({
-            type: 'PUT',
-            url: issueUpdateURL,
-            dataType: 'JSON',
-            data: data
-          }).done(function(data) {
-            var labelCount, template, labelTooltipTitle, labelTitles;
-            $loading.fadeOut();
-            $dropdown.trigger('loaded.gl.dropdown');
-            $selectbox.hide();
-            data.issueURLSplit = issueURLSplit;
-            labelCount = 0;
-            if (data.labels.length) {
-              template = labelHTMLTemplate(data);
-              labelCount = data.labels.length;
-            }
-            else {
-              template = labelNoneHTMLTemplate;
-            }
-            $value.removeAttr('style').html(template);
-            $sidebarCollapsedValue.text(labelCount);
-
-            if (data.labels.length) {
-              labelTitles = data.labels.map(function(label) {
-                return label.title;
-              });
+          else {
+            template = labelNoneHTMLTemplate;
+          }
+          $value.removeAttr('style').html(template);
+          $sidebarCollapsedValue.text(labelCount);
 
-              if (labelTitles.length > 5) {
-                labelTitles = labelTitles.slice(0, 5);
-                labelTitles.push('and ' + (data.labels.length - 5) + ' more');
-              }
+          if (data.labels.length) {
+            labelTitles = data.labels.map(function(label) {
+              return label.title;
+            });
 
-              labelTooltipTitle = labelTitles.join(', ');
-            }
-            else {
-              labelTooltipTitle = '';
-              $sidebarLabelTooltip.tooltip('destroy');
+            if (labelTitles.length > 5) {
+              labelTitles = labelTitles.slice(0, 5);
+              labelTitles.push('and ' + (data.labels.length - 5) + ' more');
             }
 
-            $sidebarLabelTooltip
-              .attr('title', labelTooltipTitle)
-              .tooltip('fixTitle');
+            labelTooltipTitle = labelTitles.join(', ');
+          }
+          else {
+            labelTooltipTitle = '';
+            $sidebarLabelTooltip.tooltip('destroy');
+          }
 
-            $('.has-tooltip', $value).tooltip({
-              container: 'body'
-            });
+          $sidebarLabelTooltip
+            .attr('title', labelTooltipTitle)
+            .tooltip('fixTitle');
+
+          $('.has-tooltip', $value).tooltip({
+            container: 'body'
           });
-        };
-        $dropdown.glDropdown({
-          showMenuAbove: showMenuAbove,
-          data: function(term, callback) {
-            return $.ajax({
-              url: labelUrl
-            }).done(function(data) {
-              data = _.chain(data).groupBy(function(label) {
-                return label.title;
-              }).map(function(label) {
-                var color;
-                color = _.map(label, function(dup) {
-                  return dup.color;
+        });
+      };
+      $dropdown.glDropdown({
+        showMenuAbove: showMenuAbove,
+        data: function(term, callback) {
+          return $.ajax({
+            url: labelUrl
+          }).done(function(data) {
+            data = _.chain(data).groupBy(function(label) {
+              return label.title;
+            }).map(function(label) {
+              var color;
+              color = _.map(label, function(dup) {
+                return dup.color;
+              });
+              return {
+                id: label[0].id,
+                title: label[0].title,
+                color: color,
+                duplicate: color.length > 1
+              };
+            }).value();
+            if ($dropdown.hasClass('js-extra-options')) {
+              var extraData = [];
+              if (showNo) {
+                extraData.unshift({
+                  id: 0,
+                  title: 'No Label'
                 });
-                return {
-                  id: label[0].id,
-                  title: label[0].title,
-                  color: color,
-                  duplicate: color.length > 1
-                };
-              }).value();
-              if ($dropdown.hasClass('js-extra-options')) {
-                var extraData = [];
-                if (showNo) {
-                  extraData.unshift({
-                    id: 0,
-                    title: 'No Label'
-                  });
-                }
-                if (showAny) {
-                  extraData.unshift({
-                    isAny: true,
-                    title: 'Any Label'
-                  });
-                }
-                if (extraData.length) {
-                  extraData.push('divider');
-                  data = extraData.concat(data);
-                }
-              }
-
-              callback(data);
-              if (showMenuAbove) {
-                $dropdown.data('glDropdown').positionMenuAbove();
-              }
-            });
-          },
-          renderRow: function(label, instance) {
-            var $a, $li, color, colorEl, indeterminate, removesAll, selectedClass, spacing, i, marked, dropdownName, dropdownValue;
-            $li = $('<li>');
-            $a = $('<a href="#">');
-            selectedClass = [];
-            removesAll = label.id <= 0 || (label.id == null);
-            if ($dropdown.hasClass('js-filter-bulk-update')) {
-              indeterminate = $dropdown.data('indeterminate') || [];
-              marked = $dropdown.data('marked') || [];
-
-              if (indeterminate.indexOf(label.id) !== -1) {
-                selectedClass.push('is-indeterminate');
               }
-
-              if (marked.indexOf(label.id) !== -1) {
-                // Remove is-indeterminate class if the item will be marked as active
-                i = selectedClass.indexOf('is-indeterminate');
-                if (i !== -1) {
-                  selectedClass.splice(i, 1);
-                }
-                selectedClass.push('is-active');
-              }
-            } else {
-              if (this.id(label)) {
-                dropdownName = $dropdown.data('fieldName');
-                dropdownValue = this.id(label).toString().replace(/'/g, '\\\'');
-
-                if ($form.find("input[type='hidden'][name='" + dropdownName + "'][value='" + dropdownValue + "']").length) {
-                  selectedClass.push('is-active');
-                }
+              if (showAny) {
+                extraData.unshift({
+                  isAny: true,
+                  title: 'Any Label'
+                });
               }
-
-              if ($dropdown.hasClass('js-multiselect') && removesAll) {
-                selectedClass.push('dropdown-clear-active');
+              if (extraData.length) {
+                extraData.push('divider');
+                data = extraData.concat(data);
               }
             }
-            if (label.duplicate) {
-              color = gl.DropdownUtils.duplicateLabelColor(label.color);
+
+            callback(data);
+            if (showMenuAbove) {
+              $dropdown.data('glDropdown').positionMenuAbove();
             }
-            else {
-              if (label.color != null) {
-                color = label.color[0];
+          });
+        },
+        renderRow: function(label, instance) {
+          var $a, $li, color, colorEl, indeterminate, removesAll, selectedClass, spacing, i, marked, dropdownName, dropdownValue;
+          $li = $('<li>');
+          $a = $('<a href="#">');
+          selectedClass = [];
+          removesAll = label.id <= 0 || (label.id == null);
+          if ($dropdown.hasClass('js-filter-bulk-update')) {
+            indeterminate = $dropdown.data('indeterminate') || [];
+            marked = $dropdown.data('marked') || [];
+
+            if (indeterminate.indexOf(label.id) !== -1) {
+              selectedClass.push('is-indeterminate');
+            }
+
+            if (marked.indexOf(label.id) !== -1) {
+              // Remove is-indeterminate class if the item will be marked as active
+              i = selectedClass.indexOf('is-indeterminate');
+              if (i !== -1) {
+                selectedClass.splice(i, 1);
               }
+              selectedClass.push('is-active');
             }
-            if (color) {
-              colorEl = "<span class='dropdown-label-box' style='background: " + color + "'></span>";
-            }
-            else {
-              colorEl = '';
-            }
-            // We need to identify which items are actually labels
-            if (label.id) {
-              selectedClass.push('label-item');
-              $a.attr('data-label-id', label.id);
-            }
-            $a.addClass(selectedClass.join(' ')).html(colorEl + " " + label.title);
-            // Return generated html
-            return $li.html($a).prop('outerHTML');
-          },
-          search: {
-            fields: ['title']
-          },
-          selectable: true,
-          filterable: true,
-          selected: $dropdown.data('selected') || [],
-          toggleLabel: function(selected, el) {
-            var isSelected = el !== null ? el.hasClass('is-active') : false;
-            var title = selected.title;
-            var selectedLabels = this.selected;
-
-            if (selected.id === 0) {
-              this.selected = [];
-              return 'No Label';
+          } else {
+            if (this.id(label)) {
+              dropdownName = $dropdown.data('fieldName');
+              dropdownValue = this.id(label).toString().replace(/'/g, '\\\'');
+
+              if ($form.find("input[type='hidden'][name='" + dropdownName + "'][value='" + dropdownValue + "']").length) {
+                selectedClass.push('is-active');
+              }
             }
-            else if (isSelected) {
-              this.selected.push(title);
+
+            if ($dropdown.hasClass('js-multiselect') && removesAll) {
+              selectedClass.push('dropdown-clear-active');
             }
-            else {
-              var index = this.selected.indexOf(title);
-              this.selected.splice(index, 1);
+          }
+          if (label.duplicate) {
+            color = gl.DropdownUtils.duplicateLabelColor(label.color);
+          }
+          else {
+            if (label.color != null) {
+              color = label.color[0];
             }
+          }
+          if (color) {
+            colorEl = "<span class='dropdown-label-box' style='background: " + color + "'></span>";
+          }
+          else {
+            colorEl = '';
+          }
+          // We need to identify which items are actually labels
+          if (label.id) {
+            selectedClass.push('label-item');
+            $a.attr('data-label-id', label.id);
+          }
+          $a.addClass(selectedClass.join(' ')).html(colorEl + " " + label.title);
+          // Return generated html
+          return $li.html($a).prop('outerHTML');
+        },
+        search: {
+          fields: ['title']
+        },
+        selectable: true,
+        filterable: true,
+        selected: $dropdown.data('selected') || [],
+        toggleLabel: function(selected, el) {
+          var isSelected = el !== null ? el.hasClass('is-active') : false;
+          var title = selected.title;
+          var selectedLabels = this.selected;
+
+          if (selected.id === 0) {
+            this.selected = [];
+            return 'No Label';
+          }
+          else if (isSelected) {
+            this.selected.push(title);
+          }
+          else {
+            var index = this.selected.indexOf(title);
+            this.selected.splice(index, 1);
+          }
+
+          if (selectedLabels.length === 1) {
+            return selectedLabels;
+          }
+          else if (selectedLabels.length) {
+            return selectedLabels[0] + " +" + (selectedLabels.length - 1) + " more";
+          }
+          else {
+            return defaultLabel;
+          }
+        },
+        fieldName: $dropdown.data('field-name'),
+        id: function(label) {
+          if (label.id <= 0) return label.title;
+
+          if ($dropdown.hasClass('js-issuable-form-dropdown')) {
+            return label.id;
+          }
 
-            if (selectedLabels.length === 1) {
-              return selectedLabels;
+          if ($dropdown.hasClass("js-filter-submit") && (label.isAny == null)) {
+            return label.title;
+          }
+          else {
+            return label.id;
+          }
+        },
+        hidden: function() {
+          var isIssueIndex, isMRIndex, page, selectedLabels;
+          page = $('body').attr('data-page');
+          isIssueIndex = page === 'projects:issues:index';
+          isMRIndex = page === 'projects:merge_requests:index';
+          $selectbox.hide();
+          // display:block overrides the hide-collapse rule
+          $value.removeAttr('style');
+
+          if ($dropdown.hasClass('js-issuable-form-dropdown')) {
+            return;
+          }
+
+          if ($('html').hasClass('issue-boards-page')) {
+            return;
+          }
+          if ($dropdown.hasClass('js-multiselect')) {
+            if ($dropdown.hasClass('js-filter-submit') && (isIssueIndex || isMRIndex)) {
+              selectedLabels = $dropdown.closest('form').find("input:hidden[name='" + ($dropdown.data('fieldName')) + "']");
+              Issuable.filterResults($dropdown.closest('form'));
             }
-            else if (selectedLabels.length) {
-              return selectedLabels[0] + " +" + (selectedLabels.length - 1) + " more";
+            else if ($dropdown.hasClass('js-filter-submit')) {
+              $dropdown.closest('form').submit();
             }
             else {
-              return defaultLabel;
+              if (!$dropdown.hasClass('js-filter-bulk-update')) {
+                saveLabelData();
+              }
             }
-          },
-          fieldName: $dropdown.data('field-name'),
-          id: function(label) {
-            if (label.id <= 0) return label.title;
+          }
+        },
+        multiSelect: $dropdown.hasClass('js-multiselect'),
+        vue: $dropdown.hasClass('js-issue-board-sidebar'),
+        clicked: function(options) {
+          const { $el, e, isMarking } = options;
+          const label = options.selectedObj;
+
+          var isIssueIndex, isMRIndex, page, boardsModel;
+          var fadeOutLoader = () => {
+            $loading.fadeOut();
+          };
 
-            if ($dropdown.hasClass('js-issuable-form-dropdown')) {
-              return label.id;
-            }
+          page = $('body').attr('data-page');
+          isIssueIndex = page === 'projects:issues:index';
+          isMRIndex = page === 'projects:merge_requests:index';
 
-            if ($dropdown.hasClass("js-filter-submit") && (label.isAny == null)) {
-              return label.title;
-            }
-            else {
-              return label.id;
-            }
-          },
-          hidden: function() {
-            var isIssueIndex, isMRIndex, page, selectedLabels;
-            page = $('body').attr('data-page');
-            isIssueIndex = page === 'projects:issues:index';
-            isMRIndex = page === 'projects:merge_requests:index';
-            $selectbox.hide();
-            // display:block overrides the hide-collapse rule
-            $value.removeAttr('style');
-
-            if ($dropdown.hasClass('js-issuable-form-dropdown')) {
-              return;
-            }
+          if ($dropdown.parent().find('.is-active:not(.dropdown-clear-active)').length) {
+            $dropdown.parent()
+              .find('.dropdown-clear-active')
+              .removeClass('is-active');
+          }
 
-            if ($('html').hasClass('issue-boards-page')) {
-              return;
-            }
-            if ($dropdown.hasClass('js-multiselect')) {
-              if ($dropdown.hasClass('js-filter-submit') && (isIssueIndex || isMRIndex)) {
-                selectedLabels = $dropdown.closest('form').find("input:hidden[name='" + ($dropdown.data('fieldName')) + "']");
-                Issuable.filterResults($dropdown.closest('form'));
-              }
-              else if ($dropdown.hasClass('js-filter-submit')) {
-                $dropdown.closest('form').submit();
-              }
-              else {
-                if (!$dropdown.hasClass('js-filter-bulk-update')) {
-                  saveLabelData();
-                }
-              }
-            }
-          },
-          multiSelect: $dropdown.hasClass('js-multiselect'),
-          vue: $dropdown.hasClass('js-issue-board-sidebar'),
-          clicked: function(clickEvent) {
-            const { $el, e, isMarking } = clickEvent;
-            const label = clickEvent.selectedObj;
-
-            var isIssueIndex, isMRIndex, page, boardsModel;
-            var fadeOutLoader = () => {
-              $loading.fadeOut();
-            };
-
-            page = $('body').attr('data-page');
-            isIssueIndex = page === 'projects:issues:index';
-            isMRIndex = page === 'projects:merge_requests:index';
-
-            if ($dropdown.parent().find('.is-active:not(.dropdown-clear-active)').length) {
-              $dropdown.parent()
-                .find('.dropdown-clear-active')
-                .removeClass('is-active');
-            }
+          if ($dropdown.hasClass('js-issuable-form-dropdown')) {
+            return;
+          }
 
-            if ($dropdown.hasClass('js-issuable-form-dropdown')) {
-              return;
-            }
+          if ($dropdown.hasClass('js-filter-bulk-update')) {
+            _this.enableBulkLabelDropdown();
+            _this.setDropdownData($dropdown, isMarking, label.id);
+            return;
+          }
 
-            if ($dropdown.hasClass('js-filter-bulk-update')) {
-              _this.enableBulkLabelDropdown();
-              _this.setDropdownData($dropdown, isMarking, label.id);
-              return;
-            }
+          if ($dropdown.closest('.add-issues-modal').length) {
+            boardsModel = gl.issueBoards.ModalStore.store.filter;
+          }
 
-            if ($dropdown.closest('.add-issues-modal').length) {
-              boardsModel = gl.issueBoards.ModalStore.store.filter;
+          if (boardsModel) {
+            if (label.isAny) {
+              boardsModel['label_name'] = [];
+            } else if ($el.hasClass('is-active')) {
+              boardsModel['label_name'].push(label.title);
             }
 
-            if (boardsModel) {
-              if (label.isAny) {
-                boardsModel['label_name'] = [];
-              } else if ($el.hasClass('is-active')) {
-                boardsModel['label_name'].push(label.title);
-              }
-
-              e.preventDefault();
-              return;
+            e.preventDefault();
+            return;
+          }
+          else if ($dropdown.hasClass('js-filter-submit') && (isIssueIndex || isMRIndex)) {
+            if (!$dropdown.hasClass('js-multiselect')) {
+              selectedLabel = label.title;
+              return Issuable.filterResults($dropdown.closest('form'));
             }
-            else if ($dropdown.hasClass('js-filter-submit') && (isIssueIndex || isMRIndex)) {
-              if (!$dropdown.hasClass('js-multiselect')) {
-                selectedLabel = label.title;
-                return Issuable.filterResults($dropdown.closest('form'));
-              }
+          }
+          else if ($dropdown.hasClass('js-filter-submit')) {
+            return $dropdown.closest('form').submit();
+          }
+          else if ($dropdown.hasClass('js-issue-board-sidebar')) {
+            if ($el.hasClass('is-active')) {
+              gl.issueBoards.BoardsStore.detail.issue.labels.push(new ListLabel({
+                id: label.id,
+                title: label.title,
+                color: label.color[0],
+                textColor: '#fff'
+              }));
             }
-            else if ($dropdown.hasClass('js-filter-submit')) {
-              return $dropdown.closest('form').submit();
+            else {
+              var labels = gl.issueBoards.BoardsStore.detail.issue.labels;
+              labels = labels.filter(function (selectedLabel) {
+                return selectedLabel.id !== label.id;
+              });
+              gl.issueBoards.BoardsStore.detail.issue.labels = labels;
             }
-            else if ($dropdown.hasClass('js-issue-board-sidebar')) {
-              if ($el.hasClass('is-active')) {
-                gl.issueBoards.BoardsStore.detail.issue.labels.push(new ListLabel({
-                  id: label.id,
-                  title: label.title,
-                  color: label.color[0],
-                  textColor: '#fff'
-                }));
-              }
-              else {
-                var labels = gl.issueBoards.BoardsStore.detail.issue.labels;
-                labels = labels.filter(function (selectedLabel) {
-                  return selectedLabel.id !== label.id;
-                });
-                gl.issueBoards.BoardsStore.detail.issue.labels = labels;
-              }
 
-              $loading.fadeIn();
+            $loading.fadeIn();
+
+            gl.issueBoards.BoardsStore.detail.issue.update($dropdown.attr('data-issue-update'))
+              .then(fadeOutLoader)
+              .catch(fadeOutLoader);
+          }
+          else {
+            if ($dropdown.hasClass('js-multiselect')) {
 
-              gl.issueBoards.BoardsStore.detail.issue.update($dropdown.attr('data-issue-update'))
-                .then(fadeOutLoader)
-                .catch(fadeOutLoader);
             }
             else if (handleClick) {
               e.preventDefault();
               handleClick(label);
             }
             else {
-              if ($dropdown.hasClass('js-multiselect')) {
-
-              }
-              else {
-                return saveLabelData();
-              }
+              return saveLabelData();
             }
-          },
-        });
-
-        // Set dropdown data
-        _this.setOriginalDropdownData($dropdownContainer, $dropdown);
+          }
+        },
       });
-      this.bindEvents();
-    }
 
-    LabelsSelect.prototype.bindEvents = function() {
-      return $('body').on('change', '.selected_issue', this.onSelectCheckboxIssue);
-    };
-
-    LabelsSelect.prototype.onSelectCheckboxIssue = function() {
-      if ($('.selected_issue:checked').length) {
-        return;
+      // Set dropdown data
+      _this.setOriginalDropdownData($dropdownContainer, $dropdown);
+    });
+    this.bindEvents();
+  }
+
+  bindEvents() {
+    return $('body').on('change', '.selected_issue', this.onSelectCheckboxIssue);
+  }
+  // eslint-disable-next-line class-methods-use-this
+  onSelectCheckboxIssue() {
+    if ($('.selected_issue:checked').length) {
+      return;
+    }
+    return $('.issues-bulk-update .labels-filter .dropdown-toggle-text').text('Label');
+  }
+  // eslint-disable-next-line class-methods-use-this
+  enableBulkLabelDropdown() {
+    IssuableBulkUpdateActions.willUpdateLabels = true;
+  }
+  // eslint-disable-next-line class-methods-use-this
+  setDropdownData($dropdown, isMarking, value) {
+    var i, markedIds, unmarkedIds, indeterminateIds;
+
+    markedIds = $dropdown.data('marked') || [];
+    unmarkedIds = $dropdown.data('unmarked') || [];
+    indeterminateIds = $dropdown.data('indeterminate') || [];
+
+    if (isMarking) {
+      markedIds.push(value);
+
+      i = indeterminateIds.indexOf(value);
+      if (i > -1) {
+        indeterminateIds.splice(i, 1);
       }
-      return $('.issues-bulk-update .labels-filter .dropdown-toggle-text').text('Label');
-    };
 
-    LabelsSelect.prototype.enableBulkLabelDropdown = function() {
-      IssuableBulkUpdateActions.willUpdateLabels = true;
-    };
-
-    LabelsSelect.prototype.setDropdownData = function($dropdown, isMarking, value) {
-      var i, markedIds, unmarkedIds, indeterminateIds;
-
-      markedIds = $dropdown.data('marked') || [];
-      unmarkedIds = $dropdown.data('unmarked') || [];
-      indeterminateIds = $dropdown.data('indeterminate') || [];
-
-      if (isMarking) {
-        markedIds.push(value);
-
-        i = indeterminateIds.indexOf(value);
-        if (i > -1) {
-          indeterminateIds.splice(i, 1);
-        }
-
-        i = unmarkedIds.indexOf(value);
-        if (i > -1) {
-          unmarkedIds.splice(i, 1);
-        }
-      } else {
-        // If marked item (not common) is unmarked
-        i = markedIds.indexOf(value);
-        if (i > -1) {
-          markedIds.splice(i, 1);
-        }
-
-        // If an indeterminate item is being unmarked
-        if (IssuableBulkUpdateActions.getOriginalIndeterminateIds().indexOf(value) > -1) {
-          unmarkedIds.push(value);
-        }
-
-        // If a marked item is being unmarked
-        // (a marked item could also be a label that is present in all selection)
-        if (IssuableBulkUpdateActions.getOriginalCommonIds().indexOf(value) > -1) {
-          unmarkedIds.push(value);
-        }
+      i = unmarkedIds.indexOf(value);
+      if (i > -1) {
+        unmarkedIds.splice(i, 1);
+      }
+    } else {
+      // If marked item (not common) is unmarked
+      i = markedIds.indexOf(value);
+      if (i > -1) {
+        markedIds.splice(i, 1);
       }
 
-      $dropdown.data('marked', markedIds);
-      $dropdown.data('unmarked', unmarkedIds);
-      $dropdown.data('indeterminate', indeterminateIds);
-    };
+      // If an indeterminate item is being unmarked
+      if (IssuableBulkUpdateActions.getOriginalIndeterminateIds().indexOf(value) > -1) {
+        unmarkedIds.push(value);
+      }
 
-    LabelsSelect.prototype.setOriginalDropdownData = function($container, $dropdown) {
-      var labels = [];
-      $container.find('[name="label_name[]"]').map(function() {
-        return labels.push(this.value);
-      });
-      $dropdown.data('marked', labels);
-    };
+      // If a marked item is being unmarked
+      // (a marked item could also be a label that is present in all selection)
+      if (IssuableBulkUpdateActions.getOriginalCommonIds().indexOf(value) > -1) {
+        unmarkedIds.push(value);
+      }
+    }
 
-    return LabelsSelect;
-  })();
-}).call(window);
+    $dropdown.data('marked', markedIds);
+    $dropdown.data('unmarked', unmarkedIds);
+    $dropdown.data('indeterminate', indeterminateIds);
+  }
+  // eslint-disable-next-line class-methods-use-this
+  setOriginalDropdownData($container, $dropdown) {
+    const labels = [];
+    $container.find('[name="label_name[]"]').map(function() {
+      return labels.push(this.value);
+    });
+    $dropdown.data('marked', labels);
+  }
+}
diff --git a/app/assets/javascripts/lazy_loader.js b/app/assets/javascripts/lazy_loader.js
index 3d64b121fa7..dbbf1637a47 100644
--- a/app/assets/javascripts/lazy_loader.js
+++ b/app/assets/javascripts/lazy_loader.js
@@ -1,5 +1,3 @@
-/* eslint-disable one-export, one-var, one-var-declaration-per-line */
-
 import _ from 'underscore';
 
 export const placeholderImage = 'data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==';
@@ -21,7 +19,10 @@ export default class LazyLoader {
   }
   searchLazyImages() {
     this.lazyImages = [].slice.call(document.querySelectorAll('.lazy'));
-    this.checkElementsInView();
+
+    if (this.lazyImages.length) {
+      this.checkElementsInView();
+    }
   }
   startContentObserver() {
     const contentNode = document.querySelector(this.observerNode) || document.querySelector('body');
@@ -45,15 +46,13 @@ export default class LazyLoader {
   checkElementsInView() {
     const scrollTop = pageYOffset;
     const visHeight = scrollTop + innerHeight + SCROLL_THRESHOLD;
-    let imgBoundRect, imgTop, imgBound;
 
     // Loading Images which are in the current viewport or close to them
     this.lazyImages = this.lazyImages.filter((selectedImage) => {
       if (selectedImage.getAttribute('data-src')) {
-        imgBoundRect = selectedImage.getBoundingClientRect();
-
-        imgTop = scrollTop + imgBoundRect.top;
-        imgBound = imgTop + imgBoundRect.height;
+        const imgBoundRect = selectedImage.getBoundingClientRect();
+        const imgTop = scrollTop + imgBoundRect.top;
+        const imgBound = imgTop + imgBoundRect.height;
 
         if (scrollTop < imgBound && visHeight > imgTop) {
           LazyLoader.loadImage(selectedImage);
diff --git a/app/assets/javascripts/logo.js b/app/assets/javascripts/logo.js
index 729baa2e1a7..3688a57937e 100644
--- a/app/assets/javascripts/logo.js
+++ b/app/assets/javascripts/logo.js
@@ -1,7 +1,5 @@
-/* eslint-disable func-names, space-before-function-paren, prefer-arrow-callback */
-
-(function() {
-  window.addEventListener('beforeunload', function() {
+export default function initLogoAnimation() {
+  window.addEventListener('beforeunload', () => {
     $('.tanuki-logo').addClass('animate');
   });
-}).call(window);
+}
diff --git a/app/assets/javascripts/main.js b/app/assets/javascripts/main.js
index fd9d0c335a5..9117f033c9f 100644
--- a/app/assets/javascripts/main.js
+++ b/app/assets/javascripts/main.js
@@ -12,7 +12,6 @@ import svg4everybody from 'svg4everybody';
 // libraries with import side-effects
 import 'mousetrap';
 import 'mousetrap/plugins/pause/mousetrap-pause';
-import 'vendor/fuzzaldrin-plus';
 
 // expose common libraries as globals (TODO: remove these)
 window.jQuery = jQuery;
@@ -54,16 +53,12 @@ import './gl_dropdown';
 import './gl_field_error';
 import './gl_field_errors';
 import './gl_form';
-import './header';
+import initTodoToggle from './header';
 import initImporterStatus from './importer_status';
-import './issuable_form';
-import './issue';
-import './issue_status_select';
-import './labels_select';
 import './layout_nav';
 import LazyLoader from './lazy_loader';
 import './line_highlighter';
-import './logo';
+import initLogoAnimation from './logo';
 import './merge_request';
 import './merge_request_tabs';
 import './milestone';
@@ -137,6 +132,8 @@ $(function () {
 
   initBreadcrumbs();
   initImporterStatus();
+  initTodoToggle();
+  initLogoAnimation();
 
   // Set the default path for all cookies to GitLab's root directory
   Cookies.defaults.path = gon.relative_url_root || '/';
diff --git a/app/assets/javascripts/project_find_file.js b/app/assets/javascripts/project_find_file.js
index 11f9754780d..19682b20a4a 100644
--- a/app/assets/javascripts/project_find_file.js
+++ b/app/assets/javascripts/project_find_file.js
@@ -1,5 +1,6 @@
 /* eslint-disable func-names, space-before-function-paren, no-var, prefer-rest-params, wrap-iife, quotes, consistent-return, one-var, one-var-declaration-per-line, no-cond-assign, max-len, object-shorthand, no-param-reassign, comma-dangle, prefer-template, no-unused-vars, no-return-assign */
-/* global fuzzaldrinPlus */
+
+import fuzzaldrinPlus from 'fuzzaldrin-plus';
 
 (function() {
   this.ProjectFindFile = (function() {
diff --git a/app/assets/javascripts/repo/components/new_branch_form.vue b/app/assets/javascripts/repo/components/new_branch_form.vue
index eac43e692b0..ba7090e4a9d 100644
--- a/app/assets/javascripts/repo/components/new_branch_form.vue
+++ b/app/assets/javascripts/repo/components/new_branch_form.vue
@@ -1,18 +1,12 @@
 <script>
+  import { mapState, mapActions } from 'vuex';
   import flash, { hideFlash } from '../../flash';
   import loadingIcon from '../../vue_shared/components/loading_icon.vue';
-  import eventHub from '../event_hub';
 
   export default {
     components: {
       loadingIcon,
     },
-    props: {
-      currentBranch: {
-        type: String,
-        required: true,
-      },
-    },
     data() {
       return {
         branchName: '',
@@ -20,11 +14,17 @@
       };
     },
     computed: {
+      ...mapState([
+        'currentBranch',
+      ]),
       btnDisabled() {
         return this.loading || this.branchName === '';
       },
     },
     methods: {
+      ...mapActions([
+        'createNewBranch',
+      ]),
       toggleDropdown() {
         this.$dropdown.dropdown('toggle');
       },
@@ -38,19 +38,21 @@
           hideFlash(flashEl, false);
         }
 
-        eventHub.$emit('createNewBranch', this.branchName);
-      },
-      showErrorMessage(message) {
-        this.loading = false;
-        flash(message, 'alert', this.$el);
-      },
-      createdNewBranch(newBranchName) {
-        this.loading = false;
-        this.branchName = '';
+        this.createNewBranch(this.branchName)
+          .then(() => {
+            this.loading = false;
+            this.branchName = '';
 
-        if (this.dropdownText) {
-          this.dropdownText.textContent = newBranchName;
-        }
+            if (this.dropdownText) {
+              this.dropdownText.textContent = this.currentBranch;
+            }
+
+            this.toggleDropdown();
+          })
+          .catch(res => res.json().then((data) => {
+            this.loading = false;
+            flash(data.message, 'alert', this.$el);
+          }));
       },
     },
     created() {
@@ -59,15 +61,6 @@
 
       // text element is outside Vue app
       this.dropdownText = document.querySelector('.project-refs-form .dropdown-toggle-text');
-
-      eventHub.$on('createNewBranchSuccess', this.createdNewBranch);
-      eventHub.$on('createNewBranchError', this.showErrorMessage);
-      eventHub.$on('toggleNewBranchDropdown', this.toggleDropdown);
-    },
-    destroyed() {
-      eventHub.$off('createNewBranchSuccess', this.createdNewBranch);
-      eventHub.$off('toggleNewBranchDropdown', this.toggleDropdown);
-      eventHub.$off('createNewBranchError', this.showErrorMessage);
     },
   };
 </script>
diff --git a/app/assets/javascripts/repo/components/new_dropdown/index.vue b/app/assets/javascripts/repo/components/new_dropdown/index.vue
index 3a331ed805f..a5ee4f71281 100644
--- a/app/assets/javascripts/repo/components/new_dropdown/index.vue
+++ b/app/assets/javascripts/repo/components/new_dropdown/index.vue
@@ -1,7 +1,5 @@
 <script>
-  import RepoStore from '../../stores/repo_store';
-  import RepoHelper from '../../helpers/repo_helper';
-  import eventHub from '../../event_hub';
+  import { mapState } from 'vuex';
   import newModal from './modal.vue';
   import upload from './upload.vue';
 
@@ -14,9 +12,13 @@
       return {
         openModal: false,
         modalType: '',
-        currentPath: RepoStore.path,
       };
     },
+    computed: {
+      ...mapState([
+        'path',
+      ]),
+    },
     methods: {
       createNewItem(type) {
         this.modalType = type;
@@ -25,19 +27,6 @@
       toggleModalOpen() {
         this.openModal = !this.openModal;
       },
-      createNewEntryInStore(options, openEditMode = true) {
-        RepoHelper.createNewEntry(options, openEditMode);
-
-        if (options.toggleModal) {
-          this.toggleModalOpen();
-        }
-      },
-    },
-    created() {
-      eventHub.$on('createNewEntry', this.createNewEntryInStore);
-    },
-    beforeDestroy() {
-      eventHub.$off('createNewEntry', this.createNewEntryInStore);
     },
   };
 </script>
@@ -70,7 +59,7 @@
           </li>
           <li>
             <upload
-              :current-path="currentPath"
+              :path="path"
             />
           </li>
           <li>
@@ -88,7 +77,7 @@
     <new-modal
       v-if="openModal"
       :type="modalType"
-      :current-path="currentPath"
+      :path="path"
       @toggle="toggleModalOpen"
     />
   </div>
diff --git a/app/assets/javascripts/repo/components/new_dropdown/modal.vue b/app/assets/javascripts/repo/components/new_dropdown/modal.vue
index b49586de6bb..ac1f613bb71 100644
--- a/app/assets/javascripts/repo/components/new_dropdown/modal.vue
+++ b/app/assets/javascripts/repo/components/new_dropdown/modal.vue
@@ -1,34 +1,38 @@
 <script>
+  import { mapActions } from 'vuex';
   import { __ } from '../../../locale';
   import popupDialog from '../../../vue_shared/components/popup_dialog.vue';
-  import eventHub from '../../event_hub';
 
   export default {
     props: {
-      currentPath: {
+      type: {
         type: String,
         required: true,
       },
-      type: {
+      path: {
         type: String,
         required: true,
       },
     },
     data() {
       return {
-        entryName: this.currentPath !== '' ? `${this.currentPath}/` : '',
+        entryName: this.path !== '' ? `${this.path}/` : '',
       };
     },
     components: {
       popupDialog,
     },
     methods: {
+      ...mapActions([
+        'createTempEntry',
+      ]),
       createEntryInStore() {
-        eventHub.$emit('createNewEntry', {
-          name: this.entryName,
+        this.createTempEntry({
+          name: this.entryName.replace(new RegExp(`^${this.path}/`), ''),
           type: this.type,
-          toggleModal: true,
         });
+
+        this.toggleModalOpen();
       },
       toggleModalOpen() {
         this.$emit('toggle');
diff --git a/app/assets/javascripts/repo/components/new_dropdown/upload.vue b/app/assets/javascripts/repo/components/new_dropdown/upload.vue
index cbea9c08249..14ad32f4ae0 100644
--- a/app/assets/javascripts/repo/components/new_dropdown/upload.vue
+++ b/app/assets/javascripts/repo/components/new_dropdown/upload.vue
@@ -1,30 +1,31 @@
 <script>
-  import eventHub from '../../event_hub';
+  import { mapActions } from 'vuex';
 
   export default {
     props: {
-      currentPath: {
+      path: {
         type: String,
         required: true,
       },
     },
     methods: {
+      ...mapActions([
+        'createTempEntry',
+      ]),
       createFile(target, file, isText) {
         const { name } = file;
-        const nameWithPath = `${this.currentPath !== '' ? `${this.currentPath}/` : ''}${name}`;
         let { result } = target;
 
         if (!isText) {
           result = result.split('base64,')[1];
         }
 
-        eventHub.$emit('createNewEntry', {
-          name: nameWithPath,
+        this.createTempEntry({
+          name,
           type: 'blob',
           content: result,
-          toggleModal: false,
           base64: !isText,
-        }, isText);
+        });
       },
       readFile(file) {
         const reader = new FileReader();
diff --git a/app/assets/javascripts/repo/components/repo.vue b/app/assets/javascripts/repo/components/repo.vue
index 788976a9804..98117802016 100644
--- a/app/assets/javascripts/repo/components/repo.vue
+++ b/app/assets/javascripts/repo/components/repo.vue
@@ -1,102 +1,59 @@
 <script>
+import { mapState, mapGetters } from 'vuex';
 import RepoSidebar from './repo_sidebar.vue';
 import RepoCommitSection from './repo_commit_section.vue';
 import RepoTabs from './repo_tabs.vue';
 import RepoFileButtons from './repo_file_buttons.vue';
 import RepoPreview from './repo_preview.vue';
-import RepoMixin from '../mixins/repo_mixin';
-import PopupDialog from '../../vue_shared/components/popup_dialog.vue';
-import Store from '../stores/repo_store';
-import Helper from '../helpers/repo_helper';
-import Service from '../services/repo_service';
-import MonacoLoaderHelper from '../helpers/monaco_loader_helper';
-import eventHub from '../event_hub';
+import repoEditor from './repo_editor.vue';
 
 export default {
-  data() {
-    return Store;
+  computed: {
+    ...mapState([
+      'currentBlobView',
+    ]),
+    ...mapGetters([
+      'isCollapsed',
+      'changedFiles',
+    ]),
   },
-  mixins: [RepoMixin],
   components: {
     RepoSidebar,
     RepoTabs,
     RepoFileButtons,
-    'repo-editor': MonacoLoaderHelper.repoEditorLoader,
+    repoEditor,
     RepoCommitSection,
-    PopupDialog,
     RepoPreview,
   },
-  created() {
-    eventHub.$on('createNewBranch', this.createNewBranch);
-  },
   mounted() {
-    Helper.getContent().catch(Helper.loadingError);
-  },
-  destroyed() {
-    eventHub.$off('createNewBranch', this.createNewBranch);
-  },
-  methods: {
-    getCurrentLocation() {
-      return location.href;
-    },
-    toggleDialogOpen(toggle) {
-      this.dialog.open = toggle;
-    },
-
-    dialogSubmitted(status) {
-      this.toggleDialogOpen(false);
-      this.dialog.status = status;
-
-      // remove tmp files
-      Helper.removeAllTmpFiles('openedFiles');
-      Helper.removeAllTmpFiles('files');
-    },
-    toggleBlobView: Store.toggleBlobView,
-    createNewBranch(branch) {
-      Service.createBranch({
-        branch,
-        ref: Store.currentBranch,
-      }).then((res) => {
-        const newBranchName = res.data.name;
-        const newUrl = this.getCurrentLocation().replace(Store.currentBranch, newBranchName);
-
-        Store.currentBranch = newBranchName;
-
-        history.pushState({ key: Helper.key }, '', newUrl);
+    const returnValue = 'Are you sure you want to lose unsaved changes?';
+    window.onbeforeunload = (e) => {
+      if (!this.changedFiles.length) return undefined;
 
-        eventHub.$emit('createNewBranchSuccess', newBranchName);
-        eventHub.$emit('toggleNewBranchDropdown');
-      }).catch((err) => {
-        eventHub.$emit('createNewBranchError', err.response.data.message);
+      Object.assign(e, {
+        returnValue,
       });
-    },
+      return returnValue;
+    };
   },
 };
 </script>
 
 <template>
   <div class="repository-view">
-    <div class="tree-content-holder" :class="{'tree-content-holder-mini' : isMini}">
+    <div class="tree-content-holder" :class="{'tree-content-holder-mini' : isCollapsed}">
       <repo-sidebar/>
-      <div v-if="isMini"
-      class="panel-right"
-      :class="{'edit-mode': editMode}">
+      <div
+        v-if="isCollapsed"
+        class="panel-right"
+      >
         <repo-tabs/>
         <component
           :is="currentBlobView"
-          class="blob-viewer-container"/>
+        />
         <repo-file-buttons/>
       </div>
     </div>
-    <repo-commit-section/>
-    <popup-dialog
-      v-show="dialog.open"
-      :primary-button-label="__('Discard changes')"
-      kind="warning"
-      :title="__('Are you sure?')"
-      :text="__('Are you sure you want to discard your changes?')"
-      @toggle="toggleDialogOpen"
-      @submit="dialogSubmitted"
-    />
+    <repo-commit-section v-if="changedFiles.length" />
   </div>
 </template>
diff --git a/app/assets/javascripts/repo/components/repo_commit_section.vue b/app/assets/javascripts/repo/components/repo_commit_section.vue
index 649c69c43fd..377e3d65348 100644
--- a/app/assets/javascripts/repo/components/repo_commit_section.vue
+++ b/app/assets/javascripts/repo/components/repo_commit_section.vue
@@ -1,142 +1,100 @@
 <script>
-import Flash from '../../flash';
-import Store from '../stores/repo_store';
-import RepoMixin from '../mixins/repo_mixin';
-import Service from '../services/repo_service';
+import { mapGetters, mapState, mapActions } from 'vuex';
 import PopupDialog from '../../vue_shared/components/popup_dialog.vue';
-import { visitUrl } from '../../lib/utils/url_utility';
+import { n__ } from '../../locale';
 
 export default {
-  mixins: [RepoMixin],
-
-  data() {
-    return Store;
-  },
-
   components: {
     PopupDialog,
   },
-
+  data() {
+    return {
+      showNewBranchDialog: false,
+      submitCommitsLoading: false,
+      startNewMR: false,
+      commitMessage: '',
+    };
+  },
   computed: {
-    showCommitable() {
-      return this.isCommitable && this.changedFiles.length;
-    },
-
-    branchPaths() {
-      return this.changedFiles.map(f => f.path);
-    },
-
-    cantCommitYet() {
+    ...mapState([
+      'currentBranch',
+    ]),
+    ...mapGetters([
+      'changedFiles',
+    ]),
+    commitButtonDisabled() {
       return !this.commitMessage || this.submitCommitsLoading;
     },
-
-    filePluralize() {
-      return this.changedFiles.length > 1 ? 'files' : 'file';
+    commitButtonText() {
+      return n__('Commit %d file', 'Commit %d files', this.changedFiles.length);
     },
   },
-
   methods: {
-    commitToNewBranch(status) {
-      if (status) {
-        this.showNewBranchDialog = false;
-        this.tryCommit(null, true, true);
-      } else {
-        // reset the state
-      }
-    },
+    ...mapActions([
+      'checkCommitStatus',
+      'commitChanges',
+      'getTreeData',
+    ]),
+    makeCommit(newBranch = false) {
+      const createNewBranch = newBranch || this.startNewMR;
 
-    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 => ({
-        action: f.tempFile ? 'create' : 'update',
-        file_path: f.path,
-        content: f.newContent,
-        encoding: f.base64 ? 'base64' : 'text',
-      }));
-      const branch = newBranch ? `${this.currentBranch}-${this.currentShortHash}` : this.currentBranch;
       const payload = {
-        branch,
-        commit_message: commitMessage,
-        actions,
+        branch: createNewBranch ? `${this.currentBranch}-${new Date().getTime().toString()}` : this.currentBranch,
+        commit_message: this.commitMessage,
+        actions: this.changedFiles.map(f => ({
+          action: f.tempFile ? 'create' : 'update',
+          file_path: f.path,
+          content: f.content,
+          encoding: f.base64 ? 'base64' : 'text',
+        })),
+        start_branch: createNewBranch ? this.currentBranch : undefined,
       };
-      if (newBranch) {
-        payload.start_branch = this.currentBranch;
-      }
-      Service.commitFiles(payload)
+
+      this.showNewBranchDialog = false;
+      this.submitCommitsLoading = true;
+
+      this.commitChanges({ payload, newMr: this.startNewMR })
         .then(() => {
-          this.resetCommitState();
-          if (this.startNewMR) {
-            this.redirectToNewMr(branch);
-          } else {
-            this.redirectToBranch(branch);
-          }
+          this.submitCommitsLoading = false;
+          this.getTreeData();
         })
         .catch(() => {
-          Flash('An error occurred while committing your changes');
+          this.submitCommitsLoading = false;
         });
     },
-
-    tryCommit(e, skipBranchCheck = false, newBranch = false) {
+    tryCommit() {
       this.submitCommitsLoading = true;
 
-      if (skipBranchCheck) {
-        this.makeCommit(newBranch);
-      } else {
-        Store.setBranchHash()
-          .then(() => {
-            if (Store.branchChanged) {
-              Store.showNewBranchDialog = true;
-              return;
-            }
-            this.makeCommit(newBranch);
-          })
-          .catch(() => {
-            this.submitCommitsLoading = false;
-            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;
-      window.scrollTo(0, 0);
+      this.checkCommitStatus()
+        .then((branchChanged) => {
+          if (branchChanged) {
+            this.showNewBranchDialog = true;
+          } else {
+            this.makeCommit();
+          }
+        })
+        .catch(() => {
+          this.submitCommitsLoading = false;
+        });
     },
   },
 };
 </script>
 
 <template>
-<div
-  v-if="showCommitable"
-  id="commit-area">
+<div 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"
+    @toggle="showNewBranchDialog = false"
+    @submit="makeCommit(true)"
   />
   <form
     class="form-horizontal"
-    @submit.prevent="tryCommit">
+    @submit.prevent="tryCommit()">
     <fieldset>
       <div class="form-group">
         <label class="col-md-4 control-label staged-files">
@@ -145,10 +103,10 @@ export default {
         <div class="col-md-6">
           <ul class="list-unstyled changed-files">
             <li
-              v-for="branchPath in branchPaths"
-              :key="branchPath">
+              v-for="(file, index) in changedFiles"
+              :key="index">
               <span class="help-block">
-                {{branchPath}}
+                {{ file.path }}
               </span>
             </li>
           </ul>
@@ -183,9 +141,8 @@ export default {
       </div>
       <div class="col-md-offset-4 col-md-6">
         <button
-          ref="submitCommit"
           type="submit"
-          :disabled="cantCommitYet"
+          :disabled="commitButtonDisabled"
           class="btn btn-success">
           <i
             v-if="submitCommitsLoading"
@@ -194,7 +151,7 @@ export default {
             aria-label="loading">
           </i>
           <span class="commit-summary">
-            Commit {{changedFiles.length}} {{filePluralize}}
+            {{ commitButtonText }}
           </span>
         </button>
       </div>
diff --git a/app/assets/javascripts/repo/components/repo_edit_button.vue b/app/assets/javascripts/repo/components/repo_edit_button.vue
index e6e8b2e5205..6c1bb4b8566 100644
--- a/app/assets/javascripts/repo/components/repo_edit_button.vue
+++ b/app/assets/javascripts/repo/components/repo_edit_button.vue
@@ -1,50 +1,57 @@
 <script>
-import Store from '../stores/repo_store';
-import RepoMixin from '../mixins/repo_mixin';
+import { mapGetters, mapActions, mapState } from 'vuex';
+import popupDialog from '../../vue_shared/components/popup_dialog.vue';
 
 export default {
-  data() {
-    return Store;
+  components: {
+    popupDialog,
   },
-  mixins: [RepoMixin],
   computed: {
+    ...mapState([
+      'editMode',
+      'discardPopupOpen',
+    ]),
+    ...mapGetters([
+      'canEditFile',
+    ]),
     buttonLabel() {
       return this.editMode ? this.__('Cancel edit') : this.__('Edit');
     },
-
-    showButton() {
-      return this.isCommitable &&
-        !this.activeFile.render_error &&
-        !this.binary &&
-        this.openedFiles.length;
-    },
   },
   methods: {
-    editCancelClicked() {
-      if (this.changedFiles.length) {
-        this.dialog.open = true;
-        return;
-      }
-      this.editMode = !this.editMode;
-      Store.toggleBlobView();
-    },
+    ...mapActions([
+      'toggleEditMode',
+      'closeDiscardPopup',
+    ]),
   },
 };
 </script>
 
 <template>
-<button
-  v-if="showButton"
-  class="btn btn-default"
-  type="button"
-  @click.prevent="editCancelClicked">
-  <i
-    v-if="!editMode"
-    class="fa fa-pencil"
-    aria-hidden="true">
-  </i>
-  <span>
-    {{buttonLabel}}
-  </span>
-</button>
+  <div class="editable-mode">
+    <button
+      v-if="canEditFile"
+      class="btn btn-default"
+      type="button"
+      @click.prevent="toggleEditMode()">
+      <i
+        v-if="!editMode"
+        class="fa fa-pencil"
+        aria-hidden="true">
+      </i>
+      <span>
+        {{buttonLabel}}
+      </span>
+    </button>
+    <popup-dialog
+      v-if="discardPopupOpen"
+      class="text-left"
+      :primary-button-label="__('Discard changes')"
+      kind="warning"
+      :title="__('Are you sure?')"
+      :text="__('Are you sure you want to discard your changes?')"
+      @toggle="closeDiscardPopup"
+      @submit="toggleEditMode(true)"
+    />
+  </div>
 </template>
diff --git a/app/assets/javascripts/repo/components/repo_editor.vue b/app/assets/javascripts/repo/components/repo_editor.vue
index df4caba51d8..0d6729bb99b 100644
--- a/app/assets/javascripts/repo/components/repo_editor.vue
+++ b/app/assets/javascripts/repo/components/repo_editor.vue
@@ -1,124 +1,101 @@
 <script>
 /* global monaco */
-import Store from '../stores/repo_store';
-import Service from '../services/repo_service';
-import Helper from '../helpers/repo_helper';
-
-const RepoEditor = {
-  data() {
-    return Store;
-  },
+import { mapGetters, mapActions } from 'vuex';
+import flash from '../../flash';
+import monacoLoader from '../monaco_loader';
 
+export default {
   destroyed() {
-    if (Helper.monacoInstance) {
-      Helper.monacoInstance.destroy();
+    if (this.monacoInstance) {
+      this.monacoInstance.destroy();
     }
   },
-
   mounted() {
-    Service.getRaw(this.activeFile)
-      .then((rawResponse) => {
-        Store.blobRaw = rawResponse.data;
-        Store.activeFile.plain = rawResponse.data;
-
-        const monacoInstance = Helper.monaco.editor.create(this.$el, {
-          model: null,
-          readOnly: false,
-          contextmenu: true,
-          scrollBeyondLastLine: false,
-        });
+    if (this.monaco) {
+      this.initMonaco();
+    } else {
+      monacoLoader(['vs/editor/editor.main'], () => {
+        this.monaco = monaco;
+
+        this.initMonaco();
+      });
+    }
+  },
+  methods: {
+    ...mapActions([
+      'getRawFileData',
+      'changeFileContent',
+    ]),
+    initMonaco() {
+      if (this.monacoInstance) {
+        this.monacoInstance.setModel(null);
+      }
 
-        Helper.monacoInstance = monacoInstance;
+      this.getRawFileData(this.activeFile)
+        .then(() => {
+          if (!this.monacoInstance) {
+            this.monacoInstance = this.monaco.editor.create(this.$el, {
+              model: null,
+              readOnly: false,
+              contextmenu: true,
+              scrollBeyondLastLine: false,
+            });
 
-        this.addMonacoEvents();
+            this.languages = this.monaco.languages.getLanguages();
 
-        this.setupEditor();
-      })
-      .catch(Helper.loadingError);
-  },
+            this.addMonacoEvents();
+          }
 
-  methods: {
+          this.setupEditor();
+        })
+        .catch(() => flash('Error setting up monaco. Please try again.'));
+    },
     setupEditor() {
-      this.showHide();
+      if (!this.activeFile) return;
+      const content = this.activeFile.content !== '' ? this.activeFile.content : this.activeFile.raw;
 
-      Helper.setMonacoModelFromLanguage();
-    },
+      const foundLang = this.languages.find(lang =>
+        lang.extensions && lang.extensions.indexOf(this.activeFileExtension) === 0,
+      );
+      const newModel = this.monaco.editor.createModel(
+        content, foundLang ? foundLang.id : 'plaintext',
+      );
 
-    showHide() {
-      if (!this.openedFiles.length || (this.binary && !this.activeFile.raw)) {
-        this.$el.style.display = 'none';
-      } else {
-        this.$el.style.display = 'inline-block';
-      }
+      this.monacoInstance.setModel(newModel);
     },
-
     addMonacoEvents() {
-      Helper.monacoInstance.onMouseUp(this.onMonacoEditorMouseUp);
-      Helper.monacoInstance.onKeyUp(this.onMonacoEditorKeysPressed.bind(this));
-    },
-
-    onMonacoEditorKeysPressed() {
-      Store.setActiveFileContents(Helper.monacoInstance.getValue());
-    },
-
-    onMonacoEditorMouseUp(e) {
-      if (!e.target.position) return;
-      const lineNumber = e.target.position.lineNumber;
-      if (e.target.element.classList.contains('line-numbers')) {
-        location.hash = `L${lineNumber}`;
-        Store.setActiveLine(lineNumber);
-      }
+      this.monacoInstance.onKeyUp(() => {
+        this.changeFileContent({
+          file: this.activeFile,
+          content: this.monacoInstance.getValue(),
+        });
+      });
     },
   },
-
   watch: {
-    dialog: {
-      handler(obj) {
-        const newObj = obj;
-        if (newObj.status) {
-          newObj.status = false;
-          this.openedFiles = this.openedFiles.map((file) => {
-            const f = file;
-            if (f.active) {
-              this.blobRaw = f.plain;
-            }
-            f.changed = false;
-            delete f.newContent;
-
-            return f;
-          });
-          this.editMode = false;
-          Store.toggleBlobView();
-        }
-      },
-      deep: true,
-    },
-
-    blobRaw() {
-      if (Helper.monacoInstance) {
-        this.setupEditor();
-      }
-    },
-
-    activeLine() {
-      if (Helper.monacoInstance) {
-        Helper.monacoInstance.setPosition({
-          lineNumber: this.activeLine,
-          column: 1,
-        });
+    activeFile(oldVal, newVal) {
+      if (newVal && !newVal.active) {
+        this.initMonaco();
       }
     },
   },
   computed: {
+    ...mapGetters([
+      'activeFile',
+      'activeFileExtension',
+    ]),
     shouldHideEditor() {
-      return !this.openedFiles.length || (this.binary && !this.activeFile.raw);
+      return this.activeFile.binary && !this.activeFile.raw;
     },
   },
 };
-
-export default RepoEditor;
 </script>
 
 <template>
-<div id="ide" v-if='!shouldHideEditor'></div>
+  <div
+    id="ide"
+    v-if='!shouldHideEditor'
+    class="blob-viewer-container blob-editor-container"
+  >
+  </div>
 </template>
diff --git a/app/assets/javascripts/repo/components/repo_file.vue b/app/assets/javascripts/repo/components/repo_file.vue
index 8c86e87ed3a..7a23154b340 100644
--- a/app/assets/javascripts/repo/components/repo_file.vue
+++ b/app/assets/javascripts/repo/components/repo_file.vue
@@ -1,11 +1,9 @@
 <script>
+  import { mapActions, mapGetters } from 'vuex';
   import timeAgoMixin from '../../vue_shared/mixins/timeago';
-  import eventHub from '../event_hub';
-  import repoMixin from '../mixins/repo_mixin';
 
   export default {
     mixins: [
-      repoMixin,
       timeAgoMixin,
     ],
     props: {
@@ -15,13 +13,15 @@
       },
     },
     computed: {
+      ...mapGetters([
+        'isCollapsed',
+      ]),
       fileIcon() {
-        const classObj = {
+        return {
           '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 {
@@ -33,9 +33,9 @@
       },
     },
     methods: {
-      linkClicked(file) {
-        eventHub.$emit('fileNameClicked', file);
-      },
+      ...mapActions([
+        'clickedTreeRow',
+      ]),
     },
   };
 </script>
@@ -43,7 +43,7 @@
 <template>
   <tr
     class="file"
-    @click.prevent="linkClicked(file)">
+    @click.prevent="clickedTreeRow(file)">
     <td>
       <i
         class="fa fa-fw file-icon"
@@ -71,7 +71,7 @@
       </template>
     </td>
 
-    <template v-if="!isMini">
+    <template v-if="!isCollapsed">
       <td class="hidden-sm hidden-xs">
         <a
           @click.stop
diff --git a/app/assets/javascripts/repo/components/repo_file_buttons.vue b/app/assets/javascripts/repo/components/repo_file_buttons.vue
index c98f641c853..dd948ee84fb 100644
--- a/app/assets/javascripts/repo/components/repo_file_buttons.vue
+++ b/app/assets/javascripts/repo/components/repo_file_buttons.vue
@@ -1,37 +1,22 @@
 <script>
-import Store from '../stores/repo_store';
-import Helper from '../helpers/repo_helper';
-import RepoMixin from '../mixins/repo_mixin';
-
-const RepoFileButtons = {
-  data() {
-    return Store;
-  },
-
-  mixins: [RepoMixin],
+import { mapGetters } from 'vuex';
 
+export default {
   computed: {
+    ...mapGetters([
+      'activeFile',
+    ]),
     showButtons() {
-      return this.activeFile.raw_path ||
-        this.activeFile.blame_path ||
-        this.activeFile.commits_path ||
+      return this.activeFile.rawPath ||
+        this.activeFile.blamePath ||
+        this.activeFile.commitsPath ||
         this.activeFile.permalink;
     },
     rawDownloadButtonLabel() {
-      return this.binary ? 'Download' : 'Raw';
-    },
-
-    canPreview() {
-      return Helper.isRenderable();
+      return this.activeFile.binary ? 'Download' : 'Raw';
     },
   },
-
-  methods: {
-    rawPreviewToggle: Store.toggleRawPreview,
-  },
 };
-
-export default RepoFileButtons;
 </script>
 
 <template>
@@ -40,11 +25,11 @@ export default RepoFileButtons;
     class="repo-file-buttons"
   >
     <a
-      :href="activeFile.raw_path"
+      :href="activeFile.rawPath"
       target="_blank"
       class="btn btn-default raw"
       rel="noopener noreferrer">
-      {{rawDownloadButtonLabel}}
+      {{ rawDownloadButtonLabel }}
     </a>
 
     <div
@@ -52,12 +37,12 @@ export default RepoFileButtons;
       role="group"
       aria-label="File actions">
       <a
-        :href="activeFile.blame_path"
+        :href="activeFile.blamePath"
         class="btn btn-default blame">
         Blame
       </a>
       <a
-        :href="activeFile.commits_path"
+        :href="activeFile.commitsPath"
         class="btn btn-default history">
         History
       </a>
@@ -67,13 +52,5 @@ export default RepoFileButtons;
         Permalink
       </a>
     </div>
-
-    <a
-      v-if="canPreview"
-      href="#"
-      @click.prevent="rawPreviewToggle"
-      class="btn btn-default preview">
-      {{activeFileLabel}}
-    </a>
   </div>
 </template>
diff --git a/app/assets/javascripts/repo/components/repo_loading_file.vue b/app/assets/javascripts/repo/components/repo_loading_file.vue
index 832b45b2b29..1e6c405f292 100644
--- a/app/assets/javascripts/repo/components/repo_loading_file.vue
+++ b/app/assets/javascripts/repo/components/repo_loading_file.vue
@@ -1,10 +1,12 @@
 <script>
-  import repoMixin from '../mixins/repo_mixin';
+  import { mapGetters } from 'vuex';
 
   export default {
-    mixins: [
-      repoMixin,
-    ],
+    computed: {
+      ...mapGetters([
+        'isCollapsed',
+      ]),
+    },
     methods: {
       lineOfCode(n) {
         return `skeleton-line-${n}`;
@@ -28,7 +30,7 @@
         </div>
       </div>
     </td>
-    <template v-if="!isMini">
+    <template v-if="!isCollapsed">
       <td
         class="hidden-sm hidden-xs">
         <div class="animation-container">
diff --git a/app/assets/javascripts/repo/components/repo_prev_directory.vue b/app/assets/javascripts/repo/components/repo_prev_directory.vue
index c4bf6dcdec2..a2b305bbd05 100644
--- a/app/assets/javascripts/repo/components/repo_prev_directory.vue
+++ b/app/assets/javascripts/repo/components/repo_prev_directory.vue
@@ -1,26 +1,22 @@
 <script>
-  import eventHub from '../event_hub';
-  import repoMixin from '../mixins/repo_mixin';
+  import { mapGetters, mapState, mapActions } from 'vuex';
 
   export default {
-    mixins: [
-      repoMixin,
-    ],
-    props: {
-      prevUrl: {
-        type: String,
-        required: true,
-      },
-    },
     computed: {
+      ...mapState([
+        'parentTreeUrl',
+      ]),
+      ...mapGetters([
+        'isCollapsed',
+      ]),
       colSpanCondition() {
-        return this.isMini ? undefined : 3;
+        return this.isCollapsed ? undefined : 3;
       },
     },
     methods: {
-      linkClicked(file) {
-        eventHub.$emit('goToPreviousDirectoryClicked', file);
-      },
+      ...mapActions([
+        'getTreeData',
+      ]),
     },
   };
 </script>
@@ -30,9 +26,9 @@
     <td
       :colspan="colSpanCondition"
       class="table-cell"
-      @click.prevent="linkClicked(prevUrl)"
+      @click.prevent="getTreeData({ endpoint: parentTreeUrl })"
     >
-      <a :href="prevUrl">...</a>
+      <a :href="parentTreeUrl">...</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 264694f01a2..d1883299bd9 100644
--- a/app/assets/javascripts/repo/components/repo_preview.vue
+++ b/app/assets/javascripts/repo/components/repo_preview.vue
@@ -1,26 +1,20 @@
 <script>
 /* global LineHighlighter */
-
-import Store from '../stores/repo_store';
+import { mapGetters } from 'vuex';
 
 export default {
-  data() {
-    return Store;
-  },
   computed: {
-    html() {
-      return this.activeFile.html;
+    ...mapGetters([
+      'activeFile',
+    ]),
+    renderErrorTooLarge() {
+      return this.activeFile.renderError === 'too_large';
     },
   },
   methods: {
     highlightFile() {
       $(this.$el).find('.file-content').syntaxHighlight();
     },
-    highlightLine() {
-      if (Store.activeLine > -1) {
-        this.lineHighlighter.highlightHash(`#L${Store.activeLine}`);
-      }
-    },
   },
   mounted() {
     this.highlightFile();
@@ -29,24 +23,18 @@ export default {
       scrollFileHolder: true,
     });
   },
-  watch: {
-    html() {
-      this.$nextTick(() => {
-        this.highlightFile();
-        this.highlightLine();
-      });
-    },
-    activeLine() {
-      this.highlightLine();
-    },
+  updated() {
+    this.$nextTick(() => {
+      this.highlightFile();
+    });
   },
 };
 </script>
 
 <template>
-<div>
+<div class="blob-viewer-container">
   <div
-    v-if="!activeFile.render_error"
+    v-if="!activeFile.renderError"
     v-html="activeFile.html">
   </div>
   <div
@@ -57,17 +45,17 @@ export default {
     </p>
   </div>
   <div
-    v-else-if="activeFile.tooLarge"
+    v-else-if="renderErrorTooLarge"
     class="vertical-center render-error">
     <p class="text-center">
-      The source could not be displayed because it is too large. You can <a :href="activeFile.raw_path">download</a> it instead.
+      The source could not be displayed because it is too large. You can <a :href="activeFile.rawPath" download>download</a> it instead.
     </p>
   </div>
   <div
     v-else
     class="vertical-center render-error">
     <p class="text-center">
-      The source could not be displayed because a rendering error occurred. You can <a :href="activeFile.raw_path">download</a> it instead.
+      The source could not be displayed because a rendering error occurred. You can <a :href="activeFile.rawPath" download>download</a> it instead.
     </p>
   </div>
 </div>
diff --git a/app/assets/javascripts/repo/components/repo_sidebar.vue b/app/assets/javascripts/repo/components/repo_sidebar.vue
index 09dc9ee25d7..63c0d70f5c0 100644
--- a/app/assets/javascripts/repo/components/repo_sidebar.vue
+++ b/app/assets/javascripts/repo/components/repo_sidebar.vue
@@ -1,120 +1,55 @@
 <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 { mapState, mapGetters, mapActions } from 'vuex';
 import RepoPreviousDirectory from './repo_prev_directory.vue';
 import RepoFile from './repo_file.vue';
 import RepoLoadingFile from './repo_loading_file.vue';
-import RepoMixin from '../mixins/repo_mixin';
 
 export default {
-  mixins: [RepoMixin],
   components: {
     'repo-previous-directory': RepoPreviousDirectory,
     'repo-file': RepoFile,
     'repo-loading-file': RepoLoadingFile,
   },
   created() {
-    window.addEventListener('popstate', this.checkHistory);
+    window.addEventListener('popstate', this.popHistoryState);
   },
   destroyed() {
-    eventHub.$off('fileNameClicked', this.fileClicked);
-    eventHub.$off('goToPreviousDirectoryClicked', this.goToPreviousDirectoryClicked);
-    window.removeEventListener('popstate', this.checkHistory);
+    window.removeEventListener('popstate', this.popHistoryState);
   },
   mounted() {
-    eventHub.$on('fileNameClicked', this.fileClicked);
-    eventHub.$on('goToPreviousDirectoryClicked', this.goToPreviousDirectoryClicked);
-  },
-  data() {
-    return Store;
+    this.getTreeData();
   },
   computed: {
-    flattendFiles() {
-      const mapFiles = arr => (!arr.files.length ? [] : _.map(arr.files, a => [a, mapFiles(a)]));
-
-      return _.chain(this.files)
-        .map(arr => [arr, mapFiles(arr)])
-        .flatten()
-        .value();
-    },
+    ...mapState([
+      'loading',
+      'isRoot',
+    ]),
+    ...mapState({
+      projectName(state) {
+        return state.project.name;
+      },
+    }),
+    ...mapGetters([
+      'treeList',
+      'isCollapsed',
+    ]),
   },
   methods: {
-    checkHistory() {
-      let selectedFile = this.files.find(file => location.pathname.indexOf(file.url) > -1);
-      if (!selectedFile) {
-        // Maybe it is not in the current tree but in the opened tabs
-        selectedFile = Helper.getFileFromPath(location.pathname);
-      }
-
-      let lineNumber = null;
-      if (location.hash.indexOf('#L') > -1) lineNumber = Number(location.hash.substr(2));
-
-      if (selectedFile) {
-        if (selectedFile.url !== this.activeFile.url) {
-          this.fileClicked(selectedFile, lineNumber);
-        } else {
-          Store.setActiveLine(lineNumber);
-        }
-      } else {
-        // Not opened at all lets open new tab
-        this.fileClicked({
-          url: location.href,
-        }, lineNumber);
-      }
-    },
-
-    fileClicked(clickedFile, lineNumber) {
-      const file = clickedFile;
-
-      if (file.loading) return;
-
-      if (file.type === 'tree' && file.opened) {
-        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) {
-          Store.setActiveFiles(openFile);
-          Store.setActiveLine(lineNumber);
-        } else {
-          file.loading = true;
-          Service.url = file.url;
-          Helper.getContent(file)
-            .then(() => {
-              file.loading = false;
-              Helper.scrollTabsRight();
-              Store.setActiveLine(lineNumber);
-            })
-            .catch(Helper.loadingError);
-        }
-      }
-    },
-
-    goToPreviousDirectoryClicked(prevURL) {
-      Service.url = prevURL;
-      Helper.getContent(null, true)
-        .then(() => Helper.scrollTabsRight())
-        .catch(Helper.loadingError);
-    },
+    ...mapActions([
+      'getTreeData',
+      'popHistoryState',
+    ]),
   },
 };
 </script>
 
 <template>
-<div id="sidebar" :class="{'sidebar-mini' : isMini}">
+<div id="sidebar" :class="{'sidebar-mini' : isCollapsed}">
   <table class="table">
     <thead>
       <tr>
         <th
-          v-if="isMini"
+          v-if="isCollapsed"
           class="repo-file-options title"
         >
           <strong class="clgray">
@@ -136,17 +71,16 @@ export default {
     </thead>
     <tbody>
       <repo-previous-directory
-        v-if="!isRoot && !loading.tree"
-        :prev-url="prevURL"
+        v-if="!isRoot && treeList.length"
       />
       <repo-loading-file
-        v-if="!flattendFiles.length && loading.tree"
+        v-if="!treeList.length && loading"
         v-for="n in 5"
         :key="n"
       />
       <repo-file
-        v-for="file in flattendFiles"
-        :key="file.id"
+        v-for="(file, index) in treeList"
+        :key="index"
         :file="file"
       />
     </tbody>
diff --git a/app/assets/javascripts/repo/components/repo_tab.vue b/app/assets/javascripts/repo/components/repo_tab.vue
index 405d7b4cf86..da0714c368c 100644
--- a/app/assets/javascripts/repo/components/repo_tab.vue
+++ b/app/assets/javascripts/repo/components/repo_tab.vue
@@ -1,7 +1,7 @@
 <script>
-import Store from '../stores/repo_store';
+import { mapActions } from 'vuex';
 
-const RepoTab = {
+export default {
   props: {
     tab: {
       type: Object,
@@ -11,7 +11,7 @@ const RepoTab = {
 
   computed: {
     closeLabel() {
-      if (this.tab.changed) {
+      if (this.tab.changed || this.tab.tempFile) {
         return `${this.tab.name} changed`;
       }
       return `Close ${this.tab.name}`;
@@ -26,29 +26,23 @@ const RepoTab = {
   },
 
   methods: {
-    tabClicked(file) {
-      Store.setActiveFiles(file);
-    },
-    closeTab(file) {
-      if (file.changed || file.tempFile) return;
-
-      Store.removeFromOpenedFiles(file);
-    },
+    ...mapActions([
+      'setFileActive',
+      'closeFile',
+    ]),
   },
 };
-
-export default RepoTab;
 </script>
 
 <template>
   <li
     :class="{ active : tab.active }"
-    @click="tabClicked(tab)"
+    @click="setFileActive(tab)"
   >
     <button
       type="button"
       class="close-btn"
-      @click.stop.prevent="closeTab(tab)"
+      @click.stop.prevent="closeFile({ file: tab })"
       :aria-label="closeLabel">
       <i
         class="fa"
@@ -61,7 +55,7 @@ export default RepoTab;
       href="#"
       class="repo-tab"
       :title="tab.url"
-      @click.prevent="tabClicked(tab)">
+      @click.prevent.stop="setFileActive(tab)">
       {{tab.name}}
     </a>
   </li>
diff --git a/app/assets/javascripts/repo/components/repo_tabs.vue b/app/assets/javascripts/repo/components/repo_tabs.vue
index b57cd0960de..59beae53e8d 100644
--- a/app/assets/javascripts/repo/components/repo_tabs.vue
+++ b/app/assets/javascripts/repo/components/repo_tabs.vue
@@ -1,15 +1,15 @@
 <script>
-  import Store from '../stores/repo_store';
+  import { mapState } from 'vuex';
   import RepoTab from './repo_tab.vue';
-  import RepoMixin from '../mixins/repo_mixin';
 
   export default {
-    mixins: [RepoMixin],
     components: {
       'repo-tab': RepoTab,
     },
-    data() {
-      return Store;
+    computed: {
+      ...mapState([
+        'openFiles',
+      ]),
     },
   };
 </script>
@@ -20,7 +20,7 @@
     class="list-unstyled"
   >
     <repo-tab
-      v-for="tab in openedFiles"
+      v-for="tab in openFiles"
       :key="tab.id"
       :tab="tab"
     />
diff --git a/app/assets/javascripts/repo/event_hub.js b/app/assets/javascripts/repo/event_hub.js
deleted file mode 100644
index 0948c2e5352..00000000000
--- a/app/assets/javascripts/repo/event_hub.js
+++ /dev/null
@@ -1,3 +0,0 @@
-import Vue from 'vue';
-
-export default new Vue();
diff --git a/app/assets/javascripts/repo/helpers/monaco_loader_helper.js b/app/assets/javascripts/repo/helpers/monaco_loader_helper.js
deleted file mode 100644
index f8729bbf585..00000000000
--- a/app/assets/javascripts/repo/helpers/monaco_loader_helper.js
+++ /dev/null
@@ -1,25 +0,0 @@
-/* global monaco */
-import RepoEditor from '../components/repo_editor.vue';
-import Store from '../stores/repo_store';
-import Helper from '../helpers/repo_helper';
-import monacoLoader from '../monaco_loader';
-
-function repoEditorLoader() {
-  Store.monacoLoading = true;
-  return new Promise((resolve, reject) => {
-    monacoLoader(['vs/editor/editor.main'], () => {
-      Helper.monaco = monaco;
-      Store.monacoLoading = false;
-      resolve(RepoEditor);
-    }, () => {
-      Store.monacoLoading = false;
-      reject();
-    });
-  });
-}
-
-const MonacoLoaderHelper = {
-  repoEditorLoader,
-};
-
-export default MonacoLoaderHelper;
diff --git a/app/assets/javascripts/repo/helpers/repo_helper.js b/app/assets/javascripts/repo/helpers/repo_helper.js
deleted file mode 100644
index 1c677049b31..00000000000
--- a/app/assets/javascripts/repo/helpers/repo_helper.js
+++ /dev/null
@@ -1,338 +0,0 @@
-import Service from '../services/repo_service';
-import Store from '../stores/repo_store';
-import Flash from '../../flash';
-
-const RepoHelper = {
-  monacoInstance: null,
-
-  getDefaultActiveFile() {
-    return {
-      id: '',
-      active: true,
-      binary: false,
-      extension: '',
-      html: '',
-      mime_type: '',
-      name: '',
-      plain: '',
-      size: 0,
-      url: '',
-      raw: false,
-      newContent: '',
-      changed: false,
-      loading: false,
-    };
-  },
-
-  key: '',
-
-  Time: window.performance
-  && window.performance.now
-  ? window.performance
-  : Date,
-
-  getFileExtension(fileName) {
-    return fileName.split('.').pop();
-  },
-
-  getLanguageIDForFile(file, langs) {
-    const ext = RepoHelper.getFileExtension(file.name);
-    const foundLang = RepoHelper.findLanguage(ext, langs);
-
-    return foundLang ? foundLang.id : 'plaintext';
-  },
-
-  setMonacoModelFromLanguage() {
-    RepoHelper.monacoInstance.setModel(null);
-    const languages = RepoHelper.monaco.languages.getLanguages();
-    const languageID = RepoHelper.getLanguageIDForFile(Store.activeFile, languages);
-    const newModel = RepoHelper.monaco.editor.createModel(Store.blobRaw, languageID);
-    RepoHelper.monacoInstance.setModel(newModel);
-  },
-
-  findLanguage(ext, langs) {
-    return langs.find(lang => lang.extensions && lang.extensions.indexOf(`.${ext}`) > -1);
-  },
-
-  setDirectoryOpen(tree, title) {
-    if (!tree) return;
-
-    Object.assign(tree, {
-      opened: true,
-    });
-
-    RepoHelper.updateHistoryEntry(tree.url, title);
-    Store.path = tree.path;
-  },
-
-  setDirectoryToClosed(entry) {
-    Object.assign(entry, {
-      opened: false,
-      files: [],
-    });
-  },
-
-  isRenderable() {
-    const okExts = ['md', 'svg'];
-    return okExts.indexOf(Store.activeFile.extension) > -1;
-  },
-
-  setBinaryDataAsBase64(file) {
-    Service.getBase64Content(file.raw_path)
-    .then((response) => {
-      Store.blobRaw = response;
-      file.base64 = response; // eslint-disable-line no-param-reassign
-    })
-    .catch(RepoHelper.loadingError);
-  },
-
-  getContent(treeOrFile, emptyFiles = false) {
-    let file = treeOrFile;
-
-    if (!Store.files.length) {
-      Store.loading.tree = true;
-    }
-
-    return Service.getContent()
-    .then((response) => {
-      const data = response.data;
-      if (response.headers && response.headers['page-title']) data.pageTitle = decodeURI(response.headers['page-title']);
-      if (data.path && !Store.isInitialRoot) {
-        Store.isRoot = data.path === '/';
-        Store.isInitialRoot = Store.isRoot;
-      }
-
-      if (file && file.type === 'blob') {
-        if (!file) file = data;
-        Store.binary = data.binary;
-
-        if (data.binary) {
-          // file might be undefined
-          RepoHelper.setBinaryDataAsBase64(data);
-          Store.setViewToPreview();
-        } else if (!Store.isPreviewView() && !data.render_error) {
-          Service.getRaw(data)
-          .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 (emptyFiles) {
-          Store.files = [];
-        }
-
-        this.addToDirectory(file, data);
-
-        Store.prevURL = Service.blobURLtoParentTree(Service.url);
-      }
-    }).catch(RepoHelper.loadingError);
-  },
-
-  addToDirectory(file, data) {
-    const tree = file || Store;
-
-    // TODO: Figure out why `popstate` is being trigger in the specs
-    if (!tree.files) return;
-
-    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.
-
-    if (newFile.render_error === 'too_large' || newFile.render_error === 'collapsed') {
-      newFile.tooLarge = true;
-    }
-    newFile.newContent = file.newContent ? file.newContent : '';
-
-    Store.addToOpenedFiles(newFile);
-    Store.setActiveFiles(newFile);
-  },
-
-  serializeRepoEntity(type, entity, level = 0) {
-    const {
-      id,
-      url,
-      name,
-      icon,
-      last_commit,
-      tree_url,
-      path,
-      tempFile,
-      active,
-      opened,
-    } = entity;
-
-    return {
-      id,
-      type,
-      name,
-      url,
-      tree_url,
-      path,
-      level,
-      tempFile,
-      icon: `fa-${icon}`,
-      files: [],
-      loading: false,
-      opened,
-      active,
-      // eslint-disable-next-line camelcase
-      lastCommit: last_commit ? {
-        url: `${Store.projectUrl}/commit/${last_commit.id}`,
-        message: last_commit.message,
-        updatedAt: last_commit.committed_date,
-      } : {},
-    };
-  },
-
-  scrollTabsRight() {
-    const tabs = document.getElementById('tabs');
-    if (!tabs) return;
-    tabs.scrollLeft = tabs.scrollWidth;
-  },
-
-  dataToListOfFiles(data, level) {
-    const { blobs, trees, submodules } = data;
-    return [
-      ...trees.map(tree => RepoHelper.serializeRepoEntity('tree', tree, level)),
-      ...submodules.map(submodule => RepoHelper.serializeRepoEntity('submodule', submodule, level)),
-      ...blobs.map(blob => RepoHelper.serializeRepoEntity('blob', blob, level)),
-    ];
-  },
-
-  genKey() {
-    return RepoHelper.Time.now().toFixed(3);
-  },
-
-  updateHistoryEntry(url, title) {
-    const history = window.history;
-
-    RepoHelper.key = RepoHelper.genKey();
-
-    if (document.location.pathname !== url) {
-      history.pushState({ key: RepoHelper.key }, '', url);
-    }
-
-    if (title) {
-      document.title = title;
-    }
-  },
-
-  findOpenedFileFromActive() {
-    return Store.openedFiles.find(openedFile => Store.activeFile.id === openedFile.id);
-  },
-
-  getFileFromPath(path) {
-    return Store.openedFiles.find(file => file.url === path);
-  },
-
-  loadingError() {
-    Flash('Unable to load this content at this time.');
-  },
-  openEditMode() {
-    Store.editMode = true;
-    Store.currentBlobView = 'repo-editor';
-  },
-  updateStorePath(path) {
-    Store.path = path;
-  },
-  findOrCreateEntry(type, tree, name) {
-    let exists = true;
-    let foundEntry = tree.files.find(dir => dir.type === type && dir.name === name);
-
-    if (!foundEntry) {
-      foundEntry = RepoHelper.serializeRepoEntity(type, {
-        id: name,
-        name,
-        path: tree.path ? `${tree.path}/${name}` : name,
-        icon: type === 'tree' ? 'folder' : 'file-text-o',
-        tempFile: true,
-        opened: true,
-        active: true,
-      }, tree.level !== undefined ? tree.level + 1 : 0);
-
-      exists = false;
-      tree.files.push(foundEntry);
-    }
-
-    return {
-      entry: foundEntry,
-      exists,
-    };
-  },
-  removeAllTmpFiles(storeFilesKey) {
-    Store[storeFilesKey] = Store[storeFilesKey].filter(f => !f.tempFile);
-  },
-  createNewEntry(options, openEditMode = true) {
-    const {
-      name,
-      type,
-      content = '',
-      base64 = false,
-    } = options;
-    const originalPath = Store.path;
-    let entryName = name;
-
-    if (entryName.indexOf(`${originalPath}/`) !== 0) {
-      this.updateStorePath('');
-    } else {
-      entryName = entryName.replace(`${originalPath}/`, '');
-    }
-
-    if (entryName === '') return;
-
-    const fileName = type === 'tree' ? '.gitkeep' : entryName;
-    let tree = Store;
-
-    if (type === 'tree') {
-      const dirNames = entryName.split('/');
-
-      dirNames.forEach((dirName) => {
-        if (dirName === '') return;
-
-        tree = this.findOrCreateEntry('tree', tree, dirName).entry;
-      });
-    }
-
-    if ((type === 'tree' && tree.tempFile) || type === 'blob') {
-      const file = this.findOrCreateEntry('blob', tree, fileName);
-
-      if (file.exists) {
-        Flash(`The name "${file.entry.name}" is already taken in this directory.`);
-      } else {
-        const { entry } = file;
-        entry.newContent = content;
-        entry.base64 = base64;
-
-        if (entry.base64) {
-          entry.render_error = true;
-        }
-
-        this.setFile(entry, entry);
-
-        if (openEditMode) {
-          this.openEditMode();
-        } else {
-          file.entry.render_error = 'asdsad';
-        }
-      }
-    }
-
-    this.updateStorePath(originalPath);
-  },
-};
-
-export default RepoHelper;
diff --git a/app/assets/javascripts/repo/index.js b/app/assets/javascripts/repo/index.js
index 72fc5a70648..b6801af7fcb 100644
--- a/app/assets/javascripts/repo/index.js
+++ b/app/assets/javascripts/repo/index.js
@@ -1,55 +1,50 @@
-import $ from 'jquery';
 import Vue from 'vue';
+import { mapActions } from 'vuex';
 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';
 import RepoEditButton from './components/repo_edit_button.vue';
 import newBranchForm from './components/new_branch_form.vue';
 import newDropdown from './components/new_dropdown/index.vue';
+import store from './stores';
 import Translate from '../vue_shared/translate';
 
-function initDropdowns() {
-  $('.js-tree-ref-target-holder').hide();
-}
-
-function addEventsForNonVueEls() {
-  window.onbeforeunload = function confirmUnload(e) {
-    const hasChanged = Store.openedFiles
-      .some(file => file.changed);
-    if (!hasChanged) return undefined;
-    const event = e || window.event;
-    if (event) event.returnValue = 'Are you sure you want to lose unsaved changes?';
-    // For Safari
-    return 'Are you sure you want to lose unsaved changes?';
-  };
-}
-
-function setInitialStore(data) {
-  Store.service = Service;
-  Store.service.url = data.url;
-  Store.service.refsUrl = data.refsUrl;
-  Store.path = data.currentPath;
-  Store.projectId = data.projectId;
-  Store.projectName = data.projectName;
-  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) {
+  if (!el) return null;
+
   return new Vue({
     el,
+    store,
     components: {
       repo: Repo,
     },
+    methods: {
+      ...mapActions([
+        'setInitialData',
+      ]),
+    },
+    created() {
+      const data = el.dataset;
+
+      this.setInitialData({
+        project: {
+          id: data.projectId,
+          name: data.projectName,
+          url: data.projectUrl,
+        },
+        endpoints: {
+          rootEndpoint: data.url,
+          newMergeRequestUrl: data.newMergeRequestUrl,
+          rootUrl: data.rootUrl,
+        },
+        canCommit: convertPermissionToBoolean(data.canCommit),
+        onTopOfBranch: convertPermissionToBoolean(data.onTopOfBranch),
+        currentRef: data.ref,
+        path: data.currentPath,
+        currentBranch: data.currentBranch,
+        isRoot: convertPermissionToBoolean(data.root),
+        isInitialRoot: convertPermissionToBoolean(data.root),
+      });
+    },
     render(createElement) {
       return createElement('repo');
     },
@@ -59,15 +54,20 @@ function initRepo(el) {
 function initRepoEditButton(el) {
   return new Vue({
     el,
+    store,
     components: {
       repoEditButton: RepoEditButton,
     },
+    render(createElement) {
+      return createElement('repo-edit-button');
+    },
   });
 }
 
 function initNewDropdown(el) {
   return new Vue({
     el,
+    store,
     components: {
       newDropdown,
     },
@@ -87,32 +87,20 @@ function initNewBranchForm() {
     components: {
       newBranchForm,
     },
+    store,
     render(createElement) {
-      return createElement('new-branch-form', {
-        props: {
-          currentBranch: Store.currentBranch,
-        },
-      });
+      return createElement('new-branch-form');
     },
   });
 }
 
-function initRepoBundle() {
-  const repo = document.getElementById('repo');
-  const editButton = document.querySelector('.editable-mode');
-  const newDropdownHolder = document.querySelector('.js-new-dropdown');
-  setInitialStore(repo.dataset);
-  addEventsForNonVueEls();
-  initDropdowns();
-
-  Vue.use(Translate);
-
-  initRepo(repo);
-  initRepoEditButton(editButton);
-  initNewBranchForm();
-  initNewDropdown(newDropdownHolder);
-}
+const repo = document.getElementById('repo');
+const editButton = document.querySelector('.editable-mode');
+const newDropdownHolder = document.querySelector('.js-new-dropdown');
 
-$(initRepoBundle);
+Vue.use(Translate);
 
-export default initRepoBundle;
+initRepo(repo);
+initRepoEditButton(editButton);
+initNewBranchForm();
+initNewDropdown(newDropdownHolder);
diff --git a/app/assets/javascripts/repo/mixins/repo_mixin.js b/app/assets/javascripts/repo/mixins/repo_mixin.js
deleted file mode 100644
index efeda426b96..00000000000
--- a/app/assets/javascripts/repo/mixins/repo_mixin.js
+++ /dev/null
@@ -1,17 +0,0 @@
-import Store from '../stores/repo_store';
-
-const RepoMixin = {
-  computed: {
-    isMini() {
-      return !!Store.openedFiles.length;
-    },
-
-    changedFiles() {
-      const changedFileList = this.openedFiles
-        .filter(file => file.changed || file.tempFile);
-      return changedFileList;
-    },
-  },
-};
-
-export default RepoMixin;
diff --git a/app/assets/javascripts/repo/services/index.js b/app/assets/javascripts/repo/services/index.js
new file mode 100644
index 00000000000..dc222ccac01
--- /dev/null
+++ b/app/assets/javascripts/repo/services/index.js
@@ -0,0 +1,33 @@
+import Vue from 'vue';
+import VueResource from 'vue-resource';
+import Api from '../../api';
+
+Vue.use(VueResource);
+
+export default {
+  getTreeData(endpoint) {
+    return Vue.http.get(endpoint, { params: { format: 'json' } });
+  },
+  getFileData(endpoint) {
+    return Vue.http.get(endpoint, { params: { format: 'json' } });
+  },
+  getRawFileData(file) {
+    if (file.tempFile) {
+      return Promise.resolve(file.content);
+    }
+
+    return Vue.http.get(file.rawPath, { params: { format: 'json' } })
+      .then(res => res.text());
+  },
+  getBranchData(projectId, currentBranch) {
+    return Api.branchSingle(projectId, currentBranch);
+  },
+  createBranch(projectId, payload) {
+    const url = Api.buildUrl(Api.createBranchPath).replace(':id', projectId);
+
+    return Vue.http.post(url, payload);
+  },
+  commit(projectId, payload) {
+    return Api.commitMultiple(projectId, payload);
+  },
+};
diff --git a/app/assets/javascripts/repo/services/repo_service.js b/app/assets/javascripts/repo/services/repo_service.js
deleted file mode 100644
index d003e2b0a5e..00000000000
--- a/app/assets/javascripts/repo/services/repo_service.js
+++ /dev/null
@@ -1,101 +0,0 @@
-import axios from 'axios';
-import csrf from '../../lib/utils/csrf';
-import Store from '../stores/repo_store';
-import Api from '../../api';
-import Helper from '../helpers/repo_helper';
-
-axios.defaults.headers.common[csrf.headerKey] = csrf.token;
-
-const RepoService = {
-  url: '',
-  options: {
-    params: {
-      format: 'json',
-    },
-  },
-  createBranchPath: '/api/:version/projects/:id/repository/branches',
-  richExtensionRegExp: /md/,
-
-  getRaw(file) {
-    if (file.tempFile) {
-      return Promise.resolve({
-        data: file.newContent ? file.newContent : '',
-      });
-    }
-
-    return axios.get(file.raw_path, {
-      // Stop Axios from parsing a JSON file into a JS object
-      transformResponse: [res => res],
-    });
-  },
-
-  buildParams(url = this.url) {
-    // shallow clone object without reference
-    const params = Object.assign({}, this.options.params);
-
-    if (this.urlIsRichBlob(url)) params.viewer = 'rich';
-
-    return params;
-  },
-
-  urlIsRichBlob(url = this.url) {
-    const extension = Helper.getFileExtension(url);
-
-    return this.richExtensionRegExp.test(extension);
-  },
-
-  getContent(url = this.url) {
-    const params = this.buildParams(url);
-
-    return axios.get(url, {
-      params,
-    });
-  },
-
-  getBase64Content(url = this.url) {
-    const request = axios.get(url, {
-      responseType: 'arraybuffer',
-    });
-
-    return request.then(response => this.bufferToBase64(response.data));
-  },
-
-  bufferToBase64(data) {
-    return new Buffer(data, 'binary').toString('base64');
-  },
-
-  blobURLtoParentTree(url) {
-    const urlArray = url.split('/');
-    urlArray.pop();
-    const blobIndex = urlArray.lastIndexOf('blob');
-
-    if (blobIndex > -1) urlArray[blobIndex] = 'tree';
-
-    return urlArray.join('/');
-  },
-
-  getBranch() {
-    return Api.branchSingle(Store.projectId, Store.currentBranch);
-  },
-
-  commitFiles(payload) {
-    return Api.commitMultiple(Store.projectId, payload)
-      .then(this.commitFlash);
-  },
-
-  createBranch(payload) {
-    const url = Api.buildUrl(this.createBranchPath)
-      .replace(':id', Store.projectId);
-    return axios.post(url, payload);
-  },
-
-  commitFlash(data) {
-    if (data.short_id && data.stats) {
-      window.Flash(`Your changes have been committed. Commit ${data.short_id} with ${data.stats.additions} additions, ${data.stats.deletions} deletions.`, 'notice');
-    } else {
-      window.Flash(data.message);
-    }
-  },
-};
-
-export default RepoService;
diff --git a/app/assets/javascripts/repo/stores/actions.js b/app/assets/javascripts/repo/stores/actions.js
new file mode 100644
index 00000000000..ca2f2a5ce7a
--- /dev/null
+++ b/app/assets/javascripts/repo/stores/actions.js
@@ -0,0 +1,129 @@
+import Vue from 'vue';
+import flash from '../../flash';
+import service from '../services';
+import * as types from './mutation_types';
+
+export const redirectToUrl = url => gl.utils.visitUrl(url);
+
+export const setInitialData = ({ commit }, data) => commit(types.SET_INITIAL_DATA, data);
+
+export const closeDiscardPopup = ({ commit }) => commit(types.TOGGLE_DISCARD_POPUP, false);
+
+export const discardAllChanges = ({ commit, getters, dispatch }) => {
+  const changedFiles = getters.changedFiles;
+
+  changedFiles.forEach((file) => {
+    commit(types.DISCARD_FILE_CHANGES, file);
+
+    if (file.tempFile) {
+      dispatch('closeFile', { file, force: true });
+    }
+  });
+};
+
+export const closeAllFiles = ({ state, dispatch }) => {
+  state.openFiles.forEach(file => dispatch('closeFile', { file }));
+};
+
+export const toggleEditMode = ({ state, commit, getters, dispatch }, force = false) => {
+  const changedFiles = getters.changedFiles;
+
+  if (changedFiles.length && !force) {
+    commit(types.TOGGLE_DISCARD_POPUP, true);
+  } else {
+    commit(types.TOGGLE_EDIT_MODE);
+    commit(types.TOGGLE_DISCARD_POPUP, false);
+    dispatch('toggleBlobView');
+
+    if (!state.editMode) {
+      dispatch('discardAllChanges');
+    }
+  }
+};
+
+export const toggleBlobView = ({ commit, state }) => {
+  if (state.editMode) {
+    commit(types.SET_EDIT_MODE);
+  } else {
+    commit(types.SET_PREVIEW_MODE);
+  }
+};
+
+export const checkCommitStatus = ({ state }) => service.getBranchData(
+  state.project.id,
+  state.currentBranch,
+)
+  .then((data) => {
+    const { id } = data.commit;
+
+    if (state.currentRef !== id) {
+      return true;
+    }
+
+    return false;
+  })
+  .catch(() => flash('Error checking branch data. Please try again.'));
+
+export const commitChanges = ({ commit, state, dispatch }, { payload, newMr }) =>
+  service.commit(state.project.id, payload)
+  .then((data) => {
+    const { branch } = payload;
+    if (!data.short_id) {
+      flash(data.message);
+      return;
+    }
+
+    flash(`Your changes have been committed. Commit ${data.short_id} with ${data.stats.additions} additions, ${data.stats.deletions} deletions.`, 'notice');
+
+    if (newMr) {
+      redirectToUrl(`${state.endpoints.newMergeRequestUrl}${branch}`);
+    } else {
+      commit(types.SET_COMMIT_REF, data.id);
+      dispatch('discardAllChanges');
+      dispatch('closeAllFiles');
+      dispatch('toggleEditMode');
+
+      window.scrollTo(0, 0);
+    }
+  })
+  .catch(() => flash('Error committing changes. Please try again.'));
+
+export const createTempEntry = ({ state, dispatch }, { name, type, content = '', base64 = false }) => {
+  if (type === 'tree') {
+    dispatch('createTempTree', name);
+  } else if (type === 'blob') {
+    dispatch('createTempFile', {
+      tree: state,
+      name,
+      base64,
+      content,
+    });
+  }
+};
+
+export const popHistoryState = ({ state, dispatch, getters }) => {
+  const treeList = getters.treeList;
+  const tree = treeList.find(file => file.url === state.previousUrl);
+
+  if (!tree) return;
+
+  if (tree.type === 'tree') {
+    dispatch('toggleTreeOpen', { endpoint: tree.url, tree });
+  }
+};
+
+export const scrollToTab = () => {
+  Vue.nextTick(() => {
+    const tabs = document.getElementById('tabs');
+
+    if (tabs) {
+      const tabEl = tabs.querySelector('.active .repo-tab');
+
+      tabEl.focus();
+    }
+  });
+};
+
+export * from './actions/tree';
+export * from './actions/file';
+export * from './actions/branch';
diff --git a/app/assets/javascripts/repo/stores/actions/branch.js b/app/assets/javascripts/repo/stores/actions/branch.js
new file mode 100644
index 00000000000..b81a70dfd1e
--- /dev/null
+++ b/app/assets/javascripts/repo/stores/actions/branch.js
@@ -0,0 +1,20 @@
+import service from '../../services';
+import * as types from '../mutation_types';
+import { pushState } from '../utils';
+
+// eslint-disable-next-line import/prefer-default-export
+export const createNewBranch = ({ rootState, commit }, branch) => service.createBranch(
+  rootState.project.id,
+  {
+    branch,
+    ref: rootState.currentBranch,
+  },
+).then(res => res.json())
+.then((data) => {
+  const branchName = data.name;
+  const url = location.href.replace(rootState.currentBranch, branchName);
+
+  pushState(url);
+
+  commit(types.SET_CURRENT_BRANCH, branchName);
+});
diff --git a/app/assets/javascripts/repo/stores/actions/file.js b/app/assets/javascripts/repo/stores/actions/file.js
new file mode 100644
index 00000000000..afbe0b78a82
--- /dev/null
+++ b/app/assets/javascripts/repo/stores/actions/file.js
@@ -0,0 +1,108 @@
+import { normalizeHeaders } from '../../../lib/utils/common_utils';
+import flash from '../../../flash';
+import service from '../../services';
+import * as types from '../mutation_types';
+import {
+  findEntry,
+  pushState,
+  setPageTitle,
+  createTemp,
+  findIndexOfFile,
+} from '../utils';
+
+export const closeFile = ({ commit, state, dispatch }, { file, force = false }) => {
+  if ((file.changed || file.tempFile) && !force) return;
+
+  const indexOfClosedFile = findIndexOfFile(state.openFiles, file);
+  const fileWasActive = file.active;
+
+  commit(types.TOGGLE_FILE_OPEN, file);
+  commit(types.SET_FILE_ACTIVE, { file, active: false });
+
+  if (state.openFiles.length > 0 && fileWasActive) {
+    const nextIndexToOpen = indexOfClosedFile === 0 ? 0 : indexOfClosedFile - 1;
+    const nextFileToOpen = state.openFiles[nextIndexToOpen];
+
+    dispatch('setFileActive', nextFileToOpen);
+  } else if (!state.openFiles.length) {
+    pushState(file.parentTreeUrl);
+  }
+};
+
+export const setFileActive = ({ commit, state, getters, dispatch }, file) => {
+  const currentActiveFile = getters.activeFile;
+
+  if (file.active) return;
+
+  if (currentActiveFile) {
+    commit(types.SET_FILE_ACTIVE, { file: currentActiveFile, active: false });
+  }
+
+  commit(types.SET_FILE_ACTIVE, { file, active: true });
+  dispatch('scrollToTab');
+
+  // reset hash for line highlighting
+  location.hash = '';
+};
+
+export const getFileData = ({ state, commit, dispatch }, file) => {
+  commit(types.TOGGLE_LOADING, file);
+
+  service.getFileData(file.url)
+    .then((res) => {
+      const pageTitle = decodeURI(normalizeHeaders(res.headers)['PAGE-TITLE']);
+
+      setPageTitle(pageTitle);
+
+      return res.json();
+    })
+    .then((data) => {
+      commit(types.SET_FILE_DATA, { data, file });
+      commit(types.TOGGLE_FILE_OPEN, file);
+      dispatch('setFileActive', file);
+      commit(types.TOGGLE_LOADING, file);
+
+      pushState(file.url);
+    })
+    .catch(() => {
+      commit(types.TOGGLE_LOADING, file);
+      flash('Error loading file data. Please try again.');
+    });
+};
+
+export const getRawFileData = ({ commit, dispatch }, file) => service.getRawFileData(file)
+  .then((raw) => {
+    commit(types.SET_FILE_RAW_DATA, { file, raw });
+  })
+  .catch(() => flash('Error loading file content. Please try again.'));
+
+export const changeFileContent = ({ commit }, { file, content }) => {
+  commit(types.UPDATE_FILE_CONTENT, { file, content });
+};
+
+export const createTempFile = ({ state, commit, dispatch }, { tree, name, content = '', base64 = '' }) => {
+  const file = createTemp({
+    name: name.replace(`${state.path}/`, ''),
+    path: tree.path,
+    type: 'blob',
+    level: tree.level !== undefined ? tree.level + 1 : 0,
+    changed: true,
+    content,
+    base64,
+  });
+
+  if (findEntry(tree, 'blob', file.name)) return flash(`The name "${file.name}" is already taken in this directory.`);
+
+  commit(types.CREATE_TMP_FILE, {
+    parent: tree,
+    file,
+  });
+  commit(types.TOGGLE_FILE_OPEN, file);
+  dispatch('setFileActive', file);
+
+  if (!state.editMode && !file.base64) {
+    dispatch('toggleEditMode', true);
+  }
+
+  return Promise.resolve(file);
+};
diff --git a/app/assets/javascripts/repo/stores/actions/tree.js b/app/assets/javascripts/repo/stores/actions/tree.js
new file mode 100644
index 00000000000..129743c66c2
--- /dev/null
+++ b/app/assets/javascripts/repo/stores/actions/tree.js
@@ -0,0 +1,110 @@
+import { normalizeHeaders } from '../../../lib/utils/common_utils';
+import flash from '../../../flash';
+import service from '../../services';
+import * as types from '../mutation_types';
+import {
+  pushState,
+  setPageTitle,
+  findEntry,
+  createTemp,
+} from '../utils';
+
+export const getTreeData = (
+  { commit, state },
+  { endpoint = state.endpoints.rootEndpoint, tree = state } = {},
+) => {
+  commit(types.TOGGLE_LOADING, tree);
+
+  service.getTreeData(endpoint)
+    .then((res) => {
+      const pageTitle = decodeURI(normalizeHeaders(res.headers)['PAGE-TITLE']);
+
+      setPageTitle(pageTitle);
+
+      return res.json();
+    })
+    .then((data) => {
+      if (!state.isInitialRoot) {
+        commit(types.SET_ROOT, data.path === '/');
+      }
+
+      commit(types.SET_DIRECTORY_DATA, { data, tree });
+      commit(types.SET_PARENT_TREE_URL, data.parent_tree_url);
+      commit(types.TOGGLE_LOADING, tree);
+
+      pushState(endpoint);
+    })
+    .catch(() => {
+      flash('Error loading tree data. Please try again.');
+      commit(types.TOGGLE_LOADING, tree);
+    });
+};
+
+export const toggleTreeOpen = ({ commit, dispatch }, { endpoint, tree }) => {
+  if (tree.opened) {
+    // send empty data to clear the tree
+    const data = { trees: [], blobs: [], submodules: [] };
+
+    pushState(tree.parentTreeUrl);
+
+    commit(types.SET_PREVIOUS_URL, tree.parentTreeUrl);
+    commit(types.SET_DIRECTORY_DATA, { data, tree });
+  } else {
+    commit(types.SET_PREVIOUS_URL, endpoint);
+    dispatch('getTreeData', { endpoint, tree });
+  }
+
+  commit(types.TOGGLE_TREE_OPEN, tree);
+};
+
+export const clickedTreeRow = ({ commit, dispatch }, row) => {
+  if (row.type === 'tree') {
+    dispatch('toggleTreeOpen', {
+      endpoint: row.url,
+      tree: row,
+    });
+  } else if (row.type === 'submodule') {
+    commit(types.TOGGLE_LOADING, row);
+
+    gl.utils.visitUrl(row.url);
+  } else if (row.type === 'blob' && row.opened) {
+    dispatch('setFileActive', row);
+  } else {
+    dispatch('getFileData', row);
+  }
+};
+
+export const createTempTree = ({ state, commit, dispatch }, name) => {
+  let tree = state;
+  const dirNames = name.replace(new RegExp(`^${state.path}/`), '').split('/');
+
+  dirNames.forEach((dirName) => {
+    const foundEntry = findEntry(tree, 'tree', dirName);
+
+    if (!foundEntry) {
+      const tmpEntry = createTemp({
+        name: dirName,
+        path: tree.path,
+        type: 'tree',
+        level: tree.level !== undefined ? tree.level + 1 : 0,
+      });
+
+      commit(types.CREATE_TMP_TREE, {
+        parent: tree,
+        tmpEntry,
+      });
+      commit(types.TOGGLE_TREE_OPEN, tmpEntry);
+
+      tree = tmpEntry;
+    } else {
+      tree = foundEntry;
+    }
+  });
+
+  if (tree.tempFile) {
+    dispatch('createTempFile', {
+      tree,
+      name: '.gitkeep',
+    });
+  }
+};
diff --git a/app/assets/javascripts/repo/stores/getters.js b/app/assets/javascripts/repo/stores/getters.js
new file mode 100644
index 00000000000..1ed05ac6e35
--- /dev/null
+++ b/app/assets/javascripts/repo/stores/getters.js
@@ -0,0 +1,36 @@
+import _ from 'underscore';
+
+/*
+  Takes the multi-dimensional tree and returns a flattened array.
+  This allows for the table to recursively render the table rows but keeps the data
+  structure nested to make it easier to add new files/directories.
+*/
+export const treeList = (state) => {
+  const mapTree = arr => (!arr.tree.length ? [] : _.map(arr.tree, a => [a, mapTree(a)]));
+
+  return _.chain(state.tree)
+    .map(arr => [arr, mapTree(arr)])
+    .flatten()
+    .value();
+};
+
+export const changedFiles = state => state.openFiles.filter(file => file.changed);
+
+export const activeFile = state => state.openFiles.find(file => file.active);
+
+export const activeFileExtension = (state) => {
+  const file = activeFile(state);
+  return file ? `.${file.path.split('.').pop()}` : '';
+};
+
+export const isCollapsed = state => !!state.openFiles.length;
+
+export const canEditFile = (state) => {
+  const currentActiveFile = activeFile(state);
+  const openedFiles = state.openFiles;
+
+  return state.canCommit &&
+    state.onTopOfBranch &&
+    openedFiles.length &&
+    (currentActiveFile && !currentActiveFile.renderError && !currentActiveFile.binary);
+};
diff --git a/app/assets/javascripts/repo/stores/index.js b/app/assets/javascripts/repo/stores/index.js
new file mode 100644
index 00000000000..6ac9bfd8189
--- /dev/null
+++ b/app/assets/javascripts/repo/stores/index.js
@@ -0,0 +1,15 @@
+import Vue from 'vue';
+import Vuex from 'vuex';
+import state from './state';
+import * as actions from './actions';
+import * as getters from './getters';
+import mutations from './mutations';
+
+Vue.use(Vuex);
+
+export default new Vuex.Store({
+  state: state(),
+  actions,
+  mutations,
+  getters,
+});
diff --git a/app/assets/javascripts/repo/stores/mutation_types.js b/app/assets/javascripts/repo/stores/mutation_types.js
new file mode 100644
index 00000000000..4722a7dd0df
--- /dev/null
+++ b/app/assets/javascripts/repo/stores/mutation_types.js
@@ -0,0 +1,28 @@
+export const SET_INITIAL_DATA = 'SET_INITIAL_DATA';
+export const TOGGLE_LOADING = 'TOGGLE_LOADING';
+export const SET_COMMIT_REF = 'SET_COMMIT_REF';
+export const SET_PARENT_TREE_URL = 'SET_PARENT_TREE_URL';
+export const SET_ROOT = 'SET_ROOT';
+export const SET_PREVIOUS_URL = 'SET_PREVIOUS_URL';
+
+// Tree mutation types
+export const SET_DIRECTORY_DATA = 'SET_DIRECTORY_DATA';
+export const TOGGLE_TREE_OPEN = 'TOGGLE_TREE_OPEN';
+export const CREATE_TMP_TREE = 'CREATE_TMP_TREE';
+
+// File mutation types
+export const SET_FILE_DATA = 'SET_FILE_DATA';
+export const TOGGLE_FILE_OPEN = 'TOGGLE_FILE_OPEN';
+export const SET_FILE_ACTIVE = 'SET_FILE_ACTIVE';
+export const SET_FILE_RAW_DATA = 'SET_FILE_RAW_DATA';
+export const UPDATE_FILE_CONTENT = 'UPDATE_FILE_CONTENT';
+export const DISCARD_FILE_CHANGES = 'DISCARD_FILE_CHANGES';
+export const CREATE_TMP_FILE = 'CREATE_TMP_FILE';
+
+// Viewer mutation types
+export const SET_PREVIEW_MODE = 'SET_PREVIEW_MODE';
+export const SET_EDIT_MODE = 'SET_EDIT_MODE';
+export const TOGGLE_EDIT_MODE = 'TOGGLE_EDIT_MODE';
+export const TOGGLE_DISCARD_POPUP = 'TOGGLE_DISCARD_POPUP';
+
+export const SET_CURRENT_BRANCH = 'SET_CURRENT_BRANCH';
diff --git a/app/assets/javascripts/repo/stores/mutations.js b/app/assets/javascripts/repo/stores/mutations.js
new file mode 100644
index 00000000000..2f9b038322b
--- /dev/null
+++ b/app/assets/javascripts/repo/stores/mutations.js
@@ -0,0 +1,54 @@
+import * as types from './mutation_types';
+import fileMutations from './mutations/file';
+import treeMutations from './mutations/tree';
+import branchMutations from './mutations/branch';
+
+export default {
+  [types.SET_INITIAL_DATA](state, data) {
+    Object.assign(state, data);
+  },
+  [types.SET_PREVIEW_MODE](state) {
+    Object.assign(state, {
+      currentBlobView: 'repo-preview',
+    });
+  },
+  [types.SET_EDIT_MODE](state) {
+    Object.assign(state, {
+      currentBlobView: 'repo-editor',
+    });
+  },
+  [types.TOGGLE_LOADING](state, entry) {
+    Object.assign(entry, {
+      loading: !entry.loading,
+    });
+  },
+  [types.TOGGLE_EDIT_MODE](state) {
+    Object.assign(state, {
+      editMode: !state.editMode,
+    });
+  },
+  [types.TOGGLE_DISCARD_POPUP](state, discardPopupOpen) {
+    Object.assign(state, {
+      discardPopupOpen,
+    });
+  },
+  [types.SET_COMMIT_REF](state, ref) {
+    Object.assign(state, {
+      currentRef: ref,
+    });
+  },
+  [types.SET_ROOT](state, isRoot) {
+    Object.assign(state, {
+      isRoot,
+      isInitialRoot: isRoot,
+    });
+  },
+  [types.SET_PREVIOUS_URL](state, previousUrl) {
+    Object.assign(state, {
+      previousUrl,
+    });
+  },
+  ...fileMutations,
+  ...treeMutations,
+  ...branchMutations,
+};
diff --git a/app/assets/javascripts/repo/stores/mutations/branch.js b/app/assets/javascripts/repo/stores/mutations/branch.js
new file mode 100644
index 00000000000..d8229e8a620
--- /dev/null
+++ b/app/assets/javascripts/repo/stores/mutations/branch.js
@@ -0,0 +1,9 @@
+import * as types from '../mutation_types';
+
+export default {
+  [types.SET_CURRENT_BRANCH](state, currentBranch) {
+    Object.assign(state, {
+      currentBranch,
+    });
+  },
+};
diff --git a/app/assets/javascripts/repo/stores/mutations/file.js b/app/assets/javascripts/repo/stores/mutations/file.js
new file mode 100644
index 00000000000..f9ba80b9dc2
--- /dev/null
+++ b/app/assets/javascripts/repo/stores/mutations/file.js
@@ -0,0 +1,54 @@
+import * as types from '../mutation_types';
+import { findIndexOfFile } from '../utils';
+
+export default {
+  [types.SET_FILE_ACTIVE](state, { file, active }) {
+    Object.assign(file, {
+      active,
+    });
+  },
+  [types.TOGGLE_FILE_OPEN](state, file) {
+    Object.assign(file, {
+      opened: !file.opened,
+    });
+
+    if (file.opened) {
+      state.openFiles.push(file);
+    } else {
+      state.openFiles.splice(findIndexOfFile(state.openFiles, file), 1);
+    }
+  },
+  [types.SET_FILE_DATA](state, { data, file }) {
+    Object.assign(file, {
+      blamePath: data.blame_path,
+      commitsPath: data.commits_path,
+      permalink: data.permalink,
+      rawPath: data.raw_path,
+      binary: data.binary,
+      html: data.html,
+      renderError: data.render_error,
+    });
+  },
+  [types.SET_FILE_RAW_DATA](state, { file, raw }) {
+    Object.assign(file, {
+      raw,
+    });
+  },
+  [types.UPDATE_FILE_CONTENT](state, { file, content }) {
+    const changed = content !== file.raw;
+
+    Object.assign(file, {
+      content,
+      changed,
+    });
+  },
+  [types.DISCARD_FILE_CHANGES](state, file) {
+    Object.assign(file, {
+      content: '',
+      changed: false,
+    });
+  },
+  [types.CREATE_TMP_FILE](state, { file, parent }) {
+    parent.tree.push(file);
+  },
+};
diff --git a/app/assets/javascripts/repo/stores/mutations/tree.js b/app/assets/javascripts/repo/stores/mutations/tree.js
new file mode 100644
index 00000000000..52be2673107
--- /dev/null
+++ b/app/assets/javascripts/repo/stores/mutations/tree.js
@@ -0,0 +1,45 @@
+import * as types from '../mutation_types';
+import * as utils from '../utils';
+
+export default {
+  [types.TOGGLE_TREE_OPEN](state, tree) {
+    Object.assign(tree, {
+      opened: !tree.opened,
+    });
+  },
+  [types.SET_DIRECTORY_DATA](state, { data, tree }) {
+    const level = tree.level !== undefined ? tree.level + 1 : 0;
+    const parentTreeUrl = data.parent_tree_url ? `${data.parent_tree_url}${data.path}` : state.endpoints.rootUrl;
+
+    Object.assign(tree, {
+      tree: [
+        ...data.trees.map(t => utils.decorateData({
+          ...t,
+          type: 'tree',
+          parentTreeUrl,
+          level,
+        }, state.project.url)),
+        ...data.submodules.map(m => utils.decorateData({
+          ...m,
+          type: 'submodule',
+          parentTreeUrl,
+          level,
+        }, state.project.url)),
+        ...data.blobs.map(b => utils.decorateData({
+          ...b,
+          type: 'blob',
+          parentTreeUrl,
+          level,
+        }, state.project.url)),
+      ],
+    });
+  },
+  [types.SET_PARENT_TREE_URL](state, url) {
+    Object.assign(state, {
+      parentTreeUrl: url,
+    });
+  },
+  [types.CREATE_TMP_TREE](state, { parent, tmpEntry }) {
+    parent.tree.push(tmpEntry);
+  },
+};
diff --git a/app/assets/javascripts/repo/stores/repo_store.js b/app/assets/javascripts/repo/stores/repo_store.js
deleted file mode 100644
index 38df1e3e0d2..00000000000
--- a/app/assets/javascripts/repo/stores/repo_store.js
+++ /dev/null
@@ -1,189 +0,0 @@
-import Helper from '../helpers/repo_helper';
-import Service from '../services/repo_service';
-
-const RepoStore = {
-  monacoLoading: false,
-  service: '',
-  canCommit: false,
-  onTopOfBranch: false,
-  editMode: false,
-  isRoot: null,
-  isInitialRoot: null,
-  prevURL: '',
-  projectId: '',
-  projectName: '',
-  projectUrl: '',
-  branchUrl: '',
-  blobRaw: '',
-  currentBlobView: 'repo-preview',
-  openedFiles: [],
-  submitCommitsLoading: false,
-  dialog: {
-    open: false,
-    title: '',
-    status: false,
-  },
-  showNewBranchDialog: false,
-  activeFile: Helper.getDefaultActiveFile(),
-  activeFileIndex: 0,
-  activeLine: -1,
-  activeFileLabel: 'Raw',
-  files: [],
-  isCommitable: false,
-  binary: false,
-  currentBranch: '',
-  startNewMR: false,
-  currentHash: '',
-  currentShortHash: '',
-  customBranchURL: '',
-  newMrTemplateUrl: '',
-  branchChanged: false,
-  commitMessage: '',
-  path: '',
-  loading: {
-    tree: false,
-    blob: 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
-  checkIsCommitable() {
-    RepoStore.isCommitable = RepoStore.onTopOfBranch && RepoStore.canCommit;
-  },
-
-  toggleRawPreview() {
-    RepoStore.activeFile.raw = !RepoStore.activeFile.raw;
-    RepoStore.activeFileLabel = RepoStore.activeFile.raw ? 'Display rendered file' : 'Display source';
-  },
-
-  setActiveFiles(file) {
-    if (RepoStore.isActiveFile(file)) return;
-    RepoStore.openedFiles = RepoStore.openedFiles
-      .map((openedFile, i) => RepoStore.setFileActivity(file, openedFile, i));
-
-    RepoStore.setActiveToRaw();
-
-    if (file.binary) {
-      RepoStore.blobRaw = file.base64;
-    } else if (file.newContent || file.plain) {
-      RepoStore.blobRaw = file.newContent || file.plain;
-    } else {
-      Service.getRaw(file)
-        .then((rawResponse) => {
-          RepoStore.blobRaw = rawResponse.data;
-          Helper.findOpenedFileFromActive().plain = rawResponse.data;
-        }).catch(Helper.loadingError);
-    }
-
-    if (!file.loading && !file.tempFile) {
-      Helper.updateHistoryEntry(file.url, file.pageTitle || file.name);
-    }
-    RepoStore.binary = file.binary;
-    RepoStore.setActiveLine(-1);
-  },
-
-  setFileActivity(file, openedFile, i) {
-    const activeFile = openedFile;
-    activeFile.active = file.id === activeFile.id;
-
-    if (activeFile.active) RepoStore.setActiveFile(activeFile, i);
-
-    return activeFile;
-  },
-
-  setActiveFile(activeFile, i) {
-    RepoStore.activeFile = Object.assign({}, Helper.getDefaultActiveFile(), activeFile);
-    RepoStore.activeFileIndex = i;
-  },
-
-  setActiveLine(activeLine) {
-    if (!isNaN(activeLine)) RepoStore.activeLine = activeLine;
-  },
-
-  setActiveToRaw() {
-    RepoStore.activeFile.raw = false;
-    // can't get vue to listen to raw for some reason so RepoStore for now.
-    RepoStore.activeFileLabel = 'Display source';
-  },
-
-  removeFromOpenedFiles(file) {
-    if (file.type === 'tree') return;
-    let foundIndex;
-    RepoStore.openedFiles = RepoStore.openedFiles.filter((openedFile, i) => {
-      if (openedFile.path === file.path) foundIndex = i;
-      return openedFile.path !== file.path;
-    });
-
-    // remove the file from the sidebar if it is a tempFile
-    if (file.tempFile) {
-      RepoStore.files = RepoStore.files.filter(f => !(f.tempFile && f.path === file.path));
-    }
-
-    // now activate the right tab based on what you closed.
-    if (RepoStore.openedFiles.length === 0) {
-      RepoStore.activeFile = {};
-      return;
-    }
-
-    if (RepoStore.openedFiles.length === 1 || foundIndex === 0) {
-      RepoStore.setActiveFiles(RepoStore.openedFiles[0]);
-      return;
-    }
-
-    if (foundIndex && foundIndex > 0) {
-      RepoStore.setActiveFiles(RepoStore.openedFiles[foundIndex - 1]);
-    }
-  },
-
-  addToOpenedFiles(file) {
-    const openFile = file;
-
-    const openedFilesAlreadyExists = RepoStore.openedFiles
-      .some(openedFile => openedFile.path === openFile.path);
-
-    if (openedFilesAlreadyExists) return;
-
-    openFile.changed = false;
-    openFile.active = true;
-    RepoStore.openedFiles.push(openFile);
-  },
-
-  setActiveFileContents(contents) {
-    if (!RepoStore.editMode) return;
-    const currentFile = RepoStore.openedFiles[RepoStore.activeFileIndex];
-    RepoStore.activeFile.newContent = contents;
-    RepoStore.activeFile.changed = RepoStore.activeFile.plain !== RepoStore.activeFile.newContent;
-    currentFile.changed = RepoStore.activeFile.changed;
-    currentFile.newContent = contents;
-  },
-
-  toggleBlobView() {
-    RepoStore.currentBlobView = RepoStore.isPreviewView() ? 'repo-editor' : 'repo-preview';
-  },
-
-  setViewToPreview() {
-    RepoStore.currentBlobView = 'repo-preview';
-  },
-
-  // getters
-
-  isActiveFile(file) {
-    return file && file.id === RepoStore.activeFile.id;
-  },
-
-  isPreviewView() {
-    return RepoStore.currentBlobView === 'repo-preview';
-  },
-};
-
-export default RepoStore;
diff --git a/app/assets/javascripts/repo/stores/state.js b/app/assets/javascripts/repo/stores/state.js
new file mode 100644
index 00000000000..aab74754f02
--- /dev/null
+++ b/app/assets/javascripts/repo/stores/state.js
@@ -0,0 +1,23 @@
+export default () => ({
+  canCommit: false,
+  currentBranch: '',
+  currentBlobView: 'repo-preview',
+  currentRef: '',
+  discardPopupOpen: false,
+  editMode: false,
+  endpoints: {},
+  isRoot: false,
+  isInitialRoot: false,
+  loading: false,
+  onTopOfBranch: false,
+  openFiles: [],
+  path: '',
+  project: {
+    id: 0,
+    name: '',
+    url: '',
+  },
+  parentTreeUrl: '',
+  previousUrl: '',
+  tree: [],
+});
diff --git a/app/assets/javascripts/repo/stores/utils.js b/app/assets/javascripts/repo/stores/utils.js
new file mode 100644
index 00000000000..797c2b1e5b9
--- /dev/null
+++ b/app/assets/javascripts/repo/stores/utils.js
@@ -0,0 +1,108 @@
+export const dataStructure = () => ({
+  id: '',
+  type: '',
+  name: '',
+  url: '',
+  path: '',
+  level: 0,
+  tempFile: false,
+  icon: '',
+  tree: [],
+  loading: false,
+  opened: false,
+  active: false,
+  changed: false,
+  lastCommit: {},
+  tree_url: '',
+  blamePath: '',
+  commitsPath: '',
+  permalink: '',
+  rawPath: '',
+  binary: false,
+  html: '',
+  raw: '',
+  content: '',
+  parentTreeUrl: '',
+  renderError: false,
+  base64: false,
+});
+
+export const decorateData = (entity, projectUrl = '') => {
+  const {
+    id,
+    type,
+    url,
+    name,
+    icon,
+    last_commit,
+    tree_url,
+    path,
+    renderError,
+    content = '',
+    tempFile = false,
+    active = false,
+    opened = false,
+    changed = false,
+    parentTreeUrl = '',
+    level = 0,
+    base64 = false,
+  } = entity;
+
+  return {
+    ...dataStructure(),
+    id,
+    type,
+    name,
+    url,
+    tree_url,
+    path,
+    level,
+    tempFile,
+    icon: `fa-${icon}`,
+    opened,
+    active,
+    parentTreeUrl,
+    changed,
+    renderError,
+    content,
+    base64,
+    // eslint-disable-next-line camelcase
+    lastCommit: last_commit ? {
+      url: `${projectUrl}/commit/${last_commit.id}`,
+      message: last_commit.message,
+      updatedAt: last_commit.committed_date,
+    } : {},
+  };
+};
+
+export const findEntry = (state, type, name) => state.tree.find(
+  f => f.type === type && f.name === name,
+);
+export const findIndexOfFile = (state, file) => state.findIndex(f => f.path === file.path);
+
+export const setPageTitle = (title) => {
+  document.title = title;
+};
+
+export const pushState = (url) => {
+  history.pushState({ url }, '', url);
+};
+
+export const createTemp = ({ name, path, type, level, changed, content, base64 }) => {
+  const treePath = path ? `${path}/${name}` : name;
+
+  return decorateData({
+    id: new Date().getTime().toString(),
+    name,
+    type,
+    tempFile: true,
+    path: treePath,
+    icon: type === 'tree' ? 'folder' : 'file-text-o',
+    changed,
+    content,
+    parentTreeUrl: '',
+    level,
+    base64,
+    renderError: base64,
+  });
+};
diff --git a/app/assets/javascripts/sidebar/components/participants/participants.vue b/app/assets/javascripts/sidebar/components/participants/participants.vue
new file mode 100644
index 00000000000..b8510a6ce3a
--- /dev/null
+++ b/app/assets/javascripts/sidebar/components/participants/participants.vue
@@ -0,0 +1,125 @@
+<script>
+import { __, n__, sprintf } from '../../../locale';
+import loadingIcon from '../../../vue_shared/components/loading_icon.vue';
+import userAvatarImage from '../../../vue_shared/components/user_avatar/user_avatar_image.vue';
+
+export default {
+  props: {
+    loading: {
+      type: Boolean,
+      required: false,
+      default: false,
+    },
+    participants: {
+      type: Array,
+      required: false,
+      default: () => [],
+    },
+    numberOfLessParticipants: {
+      type: Number,
+      required: false,
+      default: 7,
+    },
+  },
+  data() {
+    return {
+      isShowingMoreParticipants: false,
+    };
+  },
+  components: {
+    loadingIcon,
+    userAvatarImage,
+  },
+  computed: {
+    lessParticipants() {
+      return this.participants.slice(0, this.numberOfLessParticipants);
+    },
+    visibleParticipants() {
+      return this.isShowingMoreParticipants ? this.participants : this.lessParticipants;
+    },
+    hasMoreParticipants() {
+      return this.participants.length > this.numberOfLessParticipants;
+    },
+    toggleLabel() {
+      let label = '';
+      if (this.isShowingMoreParticipants) {
+        label = __('- show less');
+      } else {
+        label = sprintf(__('+ %{moreCount} more'), {
+          moreCount: this.participants.length - this.numberOfLessParticipants,
+        });
+      }
+
+      return label;
+    },
+    participantLabel() {
+      return sprintf(
+        n__('%{count} participant', '%{count} participants', this.participants.length),
+        { count: this.loading ? '' : this.participantCount },
+      );
+    },
+    participantCount() {
+      return this.participants.length;
+    },
+  },
+  methods: {
+    toggleMoreParticipants() {
+      this.isShowingMoreParticipants = !this.isShowingMoreParticipants;
+    },
+  },
+};
+</script>
+
+<template>
+  <div>
+    <div class="sidebar-collapsed-icon">
+      <i
+        class="fa fa-users"
+        aria-hidden="true">
+      </i>
+      <loading-icon
+        v-if="loading"
+        class="js-participants-collapsed-loading-icon" />
+      <span
+        v-else
+        class="js-participants-collapsed-count">
+        {{ participantCount }}
+      </span>
+    </div>
+    <div class="title hide-collapsed">
+      <loading-icon
+        v-if="loading"
+        :inline="true"
+        class="js-participants-expanded-loading-icon" />
+      {{ participantLabel }}
+    </div>
+    <div class="participants-list hide-collapsed">
+      <div
+        v-for="participant in visibleParticipants"
+        :key="participant.id"
+        class="participants-author js-participants-author">
+        <a
+          class="author_link"
+          :href="participant.web_url">
+          <user-avatar-image
+            :lazy="true"
+            :img-src="participant.avatar_url"
+            css-classes="avatar-inline"
+            :size="24"
+            :tooltip-text="participant.name"
+            tooltip-placement="bottom" />
+        </a>
+      </div>
+    </div>
+    <div
+      v-if="hasMoreParticipants"
+      class="participants-more hide-collapsed">
+      <button
+        type="button"
+        class="btn-transparent btn-blank js-toggle-participants-button"
+        @click="toggleMoreParticipants">
+        {{ toggleLabel }}
+      </button>
+    </div>
+  </div>
+</template>
diff --git a/app/assets/javascripts/sidebar/components/participants/sidebar_participants.vue b/app/assets/javascripts/sidebar/components/participants/sidebar_participants.vue
new file mode 100644
index 00000000000..c1296b28db7
--- /dev/null
+++ b/app/assets/javascripts/sidebar/components/participants/sidebar_participants.vue
@@ -0,0 +1,26 @@
+<script>
+import Store from '../../stores/sidebar_store';
+import Mediator from '../../sidebar_mediator';
+import participants from './participants.vue';
+
+export default {
+  data() {
+    return {
+      mediator: new Mediator(),
+      store: new Store(),
+    };
+  },
+  components: {
+    participants,
+  },
+};
+</script>
+
+<template>
+  <div class="block participants">
+    <participants
+      :loading="store.isFetching.participants"
+      :participants="store.participants"
+      :number-of-less-participants="7" />
+  </div>
+</template>
diff --git a/app/assets/javascripts/sidebar/components/subscriptions/sidebar_subscriptions.vue b/app/assets/javascripts/sidebar/components/subscriptions/sidebar_subscriptions.vue
new file mode 100644
index 00000000000..4ad3d469f25
--- /dev/null
+++ b/app/assets/javascripts/sidebar/components/subscriptions/sidebar_subscriptions.vue
@@ -0,0 +1,45 @@
+<script>
+import Store from '../../stores/sidebar_store';
+import Mediator from '../../sidebar_mediator';
+import eventHub from '../../event_hub';
+import Flash from '../../../flash';
+import subscriptions from './subscriptions.vue';
+
+export default {
+  data() {
+    return {
+      mediator: new Mediator(),
+      store: new Store(),
+    };
+  },
+
+  components: {
+    subscriptions,
+  },
+
+  methods: {
+    onToggleSubscription() {
+      this.mediator.toggleSubscription()
+        .catch(() => {
+          Flash('Error occurred when toggling the notification subscription');
+        });
+    },
+  },
+
+  created() {
+    eventHub.$on('toggleSubscription', this.onToggleSubscription);
+  },
+
+  beforeDestroy() {
+    eventHub.$off('toggleSubscription', this.onToggleSubscription);
+  },
+};
+</script>
+
+<template>
+  <div class="block subscriptions">
+    <subscriptions
+      :loading="store.isFetching.subscriptions"
+      :subscribed="store.subscribed" />
+  </div>
+</template>
diff --git a/app/assets/javascripts/sidebar/components/subscriptions/subscriptions.vue b/app/assets/javascripts/sidebar/components/subscriptions/subscriptions.vue
new file mode 100644
index 00000000000..a3a8213d63a
--- /dev/null
+++ b/app/assets/javascripts/sidebar/components/subscriptions/subscriptions.vue
@@ -0,0 +1,60 @@
+<script>
+import { __ } from '../../../locale';
+import eventHub from '../../event_hub';
+import loadingButton from '../../../vue_shared/components/loading_button.vue';
+
+export default {
+  props: {
+    loading: {
+      type: Boolean,
+      required: false,
+      default: false,
+    },
+    subscribed: {
+      type: Boolean,
+      required: false,
+    },
+  },
+  components: {
+    loadingButton,
+  },
+  computed: {
+    buttonLabel() {
+      let label;
+      if (this.subscribed === false) {
+        label = __('Subscribe');
+      } else if (this.subscribed === true) {
+        label = __('Unsubscribe');
+      }
+
+      return label;
+    },
+  },
+  methods: {
+    toggleSubscription() {
+      eventHub.$emit('toggleSubscription');
+    },
+  },
+};
+</script>
+
+<template>
+  <div>
+    <div class="sidebar-collapsed-icon">
+      <i
+        class="fa fa-rss"
+        aria-hidden="true">
+      </i>
+    </div>
+    <span class="issuable-header-text hide-collapsed pull-left">
+      {{ __('Notifications') }}
+    </span>
+    <loading-button
+      ref="loadingButton"
+      class="btn btn-default pull-right hide-collapsed js-issuable-subscribe-button"
+      :loading="loading"
+      :label="buttonLabel"
+      @click="toggleSubscription"
+    />
+  </div>
+</template>
diff --git a/app/assets/javascripts/sidebar/services/sidebar_service.js b/app/assets/javascripts/sidebar/services/sidebar_service.js
index 604648407a4..37c97225bfd 100644
--- a/app/assets/javascripts/sidebar/services/sidebar_service.js
+++ b/app/assets/javascripts/sidebar/services/sidebar_service.js
@@ -7,6 +7,7 @@ export default class SidebarService {
   constructor(endpointMap) {
     if (!SidebarService.singleton) {
       this.endpoint = endpointMap.endpoint;
+      this.toggleSubscriptionEndpoint = endpointMap.toggleSubscriptionEndpoint;
       this.moveIssueEndpoint = endpointMap.moveIssueEndpoint;
       this.projectsAutocompleteEndpoint = endpointMap.projectsAutocompleteEndpoint;
 
@@ -36,6 +37,10 @@ export default class SidebarService {
     });
   }
 
+  toggleSubscription() {
+    return Vue.http.post(this.toggleSubscriptionEndpoint);
+  }
+
   moveIssue(moveToProjectId) {
     return Vue.http.post(this.moveIssueEndpoint, {
       move_to_project_id: moveToProjectId,
diff --git a/app/assets/javascripts/sidebar/sidebar_bundle.js b/app/assets/javascripts/sidebar/sidebar_bundle.js
index 09b9d75c02d..2650bb725d4 100644
--- a/app/assets/javascripts/sidebar/sidebar_bundle.js
+++ b/app/assets/javascripts/sidebar/sidebar_bundle.js
@@ -4,6 +4,8 @@ import SidebarAssignees from './components/assignees/sidebar_assignees';
 import ConfidentialIssueSidebar from './components/confidential/confidential_issue_sidebar.vue';
 import SidebarMoveIssue from './lib/sidebar_move_issue';
 import LockIssueSidebar from './components/lock/lock_issue_sidebar.vue';
+import sidebarParticipants from './components/participants/sidebar_participants.vue';
+import sidebarSubscriptions from './components/subscriptions/sidebar_subscriptions.vue';
 import Translate from '../vue_shared/translate';
 
 import Mediator from './sidebar_mediator';
@@ -49,6 +51,36 @@ function mountLockComponent(mediator) {
   }).$mount(el);
 }
 
+function mountParticipantsComponent() {
+  const el = document.querySelector('.js-sidebar-participants-entry-point');
+
+  if (!el) return;
+
+  // eslint-disable-next-line no-new
+  new Vue({
+    el,
+    components: {
+      sidebarParticipants,
+    },
+    render: createElement => createElement('sidebar-participants', {}),
+  });
+}
+
+function mountSubscriptionsComponent() {
+  const el = document.querySelector('.js-sidebar-subscriptions-entry-point');
+
+  if (!el) return;
+
+  // eslint-disable-next-line no-new
+  new Vue({
+    el,
+    components: {
+      sidebarSubscriptions,
+    },
+    render: createElement => createElement('sidebar-subscriptions', {}),
+  });
+}
+
 function domContentLoaded() {
   const sidebarOptions = JSON.parse(document.querySelector('.js-sidebar-options').innerHTML);
   const mediator = new Mediator(sidebarOptions);
@@ -63,6 +95,8 @@ function domContentLoaded() {
 
   mountConfidentialComponent(mediator);
   mountLockComponent(mediator);
+  mountParticipantsComponent();
+  mountSubscriptionsComponent();
 
   new SidebarMoveIssue(
     mediator,
diff --git a/app/assets/javascripts/sidebar/sidebar_mediator.js b/app/assets/javascripts/sidebar/sidebar_mediator.js
index ede3a0de144..2bda5a47791 100644
--- a/app/assets/javascripts/sidebar/sidebar_mediator.js
+++ b/app/assets/javascripts/sidebar/sidebar_mediator.js
@@ -8,6 +8,7 @@ export default class SidebarMediator {
       this.store = new Store(options);
       this.service = new Service({
         endpoint: options.endpoint,
+        toggleSubscriptionEndpoint: options.toggleSubscriptionEndpoint,
         moveIssueEndpoint: options.moveIssueEndpoint,
         projectsAutocompleteEndpoint: options.projectsAutocompleteEndpoint,
       });
@@ -39,10 +40,25 @@ export default class SidebarMediator {
       .then((data) => {
         this.store.setAssigneeData(data);
         this.store.setTimeTrackingData(data);
+        this.store.setParticipantsData(data);
+        this.store.setSubscriptionsData(data);
       })
       .catch(() => new Flash('Error occurred when fetching sidebar data'));
   }
 
+  toggleSubscription() {
+    this.store.setFetchingState('subscriptions', true);
+    return this.service.toggleSubscription()
+      .then(() => {
+        this.store.setSubscribedState(!this.store.subscribed);
+        this.store.setFetchingState('subscriptions', false);
+      })
+      .catch((err) => {
+        this.store.setFetchingState('subscriptions', false);
+        throw err;
+      });
+  }
+
   fetchAutocompleteProjects(searchTerm) {
     return this.service.getProjectsAutocomplete(searchTerm)
       .then(response => response.json())
diff --git a/app/assets/javascripts/sidebar/stores/sidebar_store.js b/app/assets/javascripts/sidebar/stores/sidebar_store.js
index d5d04103f3f..3150221b685 100644
--- a/app/assets/javascripts/sidebar/stores/sidebar_store.js
+++ b/app/assets/javascripts/sidebar/stores/sidebar_store.js
@@ -12,10 +12,14 @@ export default class SidebarStore {
       this.assignees = [];
       this.isFetching = {
         assignees: true,
+        participants: true,
+        subscriptions: true,
       };
       this.autocompleteProjects = [];
       this.moveToProjectId = 0;
       this.isLockDialogOpen = false;
+      this.participants = [];
+      this.subscribed = null;
 
       SidebarStore.singleton = this;
     }
@@ -37,6 +41,20 @@ export default class SidebarStore {
     this.humanTotalTimeSpent = data.human_total_time_spent;
   }
 
+  setParticipantsData(data) {
+    this.isFetching.participants = false;
+    this.participants = data.participants || [];
+  }
+
+  setSubscriptionsData(data) {
+    this.isFetching.subscriptions = false;
+    this.subscribed = data.subscribed || false;
+  }
+
+  setFetchingState(key, value) {
+    this.isFetching[key] = value;
+  }
+
   addAssignee(assignee) {
     if (!this.findAssignee(assignee)) {
       this.assignees.push(assignee);
@@ -61,6 +79,10 @@ export default class SidebarStore {
     this.autocompleteProjects = projects;
   }
 
+  setSubscribedState(subscribed) {
+    this.subscribed = subscribed;
+  }
+
   setMoveToProjectId(moveToProjectId) {
     this.moveToProjectId = moveToProjectId;
   }
diff --git a/app/assets/javascripts/vue_merge_request_widget/services/mr_widget_service.js b/app/assets/javascripts/vue_merge_request_widget/services/mr_widget_service.js
index 79c3d335679..99f5c305df5 100644
--- a/app/assets/javascripts/vue_merge_request_widget/services/mr_widget_service.js
+++ b/app/assets/javascripts/vue_merge_request_widget/services/mr_widget_service.js
@@ -11,7 +11,7 @@ export default class MRWidgetService {
     this.removeWIPResource = Vue.resource(endpoints.removeWIPPath);
     this.removeSourceBranchResource = Vue.resource(endpoints.sourceBranchPath);
     this.deploymentsResource = Vue.resource(endpoints.ciEnvironmentsStatusPath);
-    this.pollResource = Vue.resource(`${endpoints.statusPath}?basic=true`);
+    this.pollResource = Vue.resource(`${endpoints.statusPath}?serializer=basic`);
     this.mergeActionsContentResource = Vue.resource(endpoints.mergeActionsContentPath);
   }
 
diff --git a/app/assets/stylesheets/framework/animations.scss b/app/assets/stylesheets/framework/animations.scss
index 81439c0d2fe..1b944831082 100644
--- a/app/assets/stylesheets/framework/animations.scss
+++ b/app/assets/stylesheets/framework/animations.scss
@@ -23,11 +23,16 @@
     @include webkit-prefix(animation-duration, 2s);
   }
 
-  &.spin {
+  &.spin-cw {
     transform-origin: center;
     animation: spin 4s linear infinite;
   }
 
+  &.spin-ccw {
+    transform-origin: center;
+    animation: spin 4s linear infinite reverse;
+  }
+
   &.flipOutX,
   &.flipOutY,
   &.bounceIn,
diff --git a/app/assets/stylesheets/framework/blocks.scss b/app/assets/stylesheets/framework/blocks.scss
index dbd990f84c1..8819a0c20f4 100644
--- a/app/assets/stylesheets/framework/blocks.scss
+++ b/app/assets/stylesheets/framework/blocks.scss
@@ -209,7 +209,6 @@
     padding: 24px 0 0;
 
     .nav-links {
-      justify-content: center;
       width: 100%;
       float: none;
 
@@ -217,6 +216,14 @@
         float: none;
       }
     }
+
+    li:first-child {
+      margin-left: auto;
+    }
+
+    li:last-child {
+      margin-right: auto;
+    }
   }
 
   .group-info {
diff --git a/app/assets/stylesheets/pages/issuable.scss b/app/assets/stylesheets/pages/issuable.scss
index 48532503263..88600a0e6d3 100644
--- a/app/assets/stylesheets/pages/issuable.scss
+++ b/app/assets/stylesheets/pages/issuable.scss
@@ -542,7 +542,9 @@
 }
 
 .participants-list {
-  margin: -5px;
+  display: flex;
+  flex-wrap: wrap;
+  margin: -7px;
 }
 
 
@@ -553,7 +555,7 @@
 
 .participants-author {
   display: inline-block;
-  padding: 5px;
+  padding: 7px;
 
   &:nth-of-type(7n) {
     padding-right: 0;
diff --git a/app/assets/stylesheets/pages/repo.scss b/app/assets/stylesheets/pages/repo.scss
index e8c7f8a8fc0..1bb4e3cc345 100644
--- a/app/assets/stylesheets/pages/repo.scss
+++ b/app/assets/stylesheets/pages/repo.scss
@@ -1,10 +1,14 @@
-.monaco-loader {
-  position: absolute;
-  top: 0;
-  left: 0;
-  right: 0;
-  bottom: 0;
-  background: $black-transparent;
+.modal.popup-dialog {
+  display: block;
+  background-color: $black-transparent;
+  z-index: 2100;
+
+  @media (min-width: $screen-md-min) {
+    .modal-dialog {
+      width: 600px;
+      margin: 30px auto;
+    }
+  }
 }
 
 .project-refs-form,
@@ -41,6 +45,7 @@
   }
 
   .tree-content-holder {
+    display: -webkit-flex;
     display: flex;
     min-height: 300px;
   }
@@ -50,7 +55,9 @@
   }
 
   .panel-right {
+    display: -webkit-flex;
     display: flex;
+    -webkit-flex-direction: column;
     flex-direction: column;
     width: 80%;
     height: 100%;
@@ -68,10 +75,6 @@
           text-decoration: underline;
         }
       }
-
-      .cursor {
-        display: none !important;
-      }
     }
 
     .blob-no-preview {
@@ -81,21 +84,12 @@
       }
     }
 
-    &.edit-mode {
-      .blob-viewer-container {
-        overflow: hidden;
-      }
-
-      .monaco-editor.vs {
-        .cursor {
-          background: $black;
-          border-color: $black;
-          display: block !important;
-        }
-      }
+    &.blob-editor-container {
+      overflow: hidden;
     }
 
     .blob-viewer-container {
+      -webkit-flex: 1;
       flex: 1;
       overflow: auto;
 
@@ -125,6 +119,7 @@
     }
 
     #tabs {
+      position: relative;
       flex-shrink: 0;
       display: flex;
       width: 100%;
@@ -153,6 +148,10 @@
           vertical-align: middle;
           text-decoration: none;
           margin-right: 12px;
+
+          &:focus {
+            outline: none;
+          }
         }
 
         .close-btn {
@@ -299,23 +298,3 @@
     width: 100%;
   }
 }
-
-@keyframes swipeRightAppear {
-  0% {
-    transform: scaleX(0.00);
-  }
-
-  100% {
-    transform: scaleX(1.00);
-  }
-}
-
-@keyframes swipeRightDissapear {
-  0% {
-    transform: scaleX(1.00);
-  }
-
-  100% {
-    transform: scaleX(0.00);
-  }
-}
diff --git a/app/assets/stylesheets/pages/runners.scss b/app/assets/stylesheets/pages/runners.scss
index 6cac37a4e28..5fb97b13470 100644
--- a/app/assets/stylesheets/pages/runners.scss
+++ b/app/assets/stylesheets/pages/runners.scss
@@ -50,3 +50,10 @@
     font-size: 11px;
   }
 }
+
+@media (max-width: $screen-md-max) {
+  .runners-content {
+    width: 100%;
+    overflow: auto;
+  }
+}
diff --git a/app/controllers/projects/group_links_controller.rb b/app/controllers/projects/group_links_controller.rb
index f59200d3b1f..dbc1c8bcc28 100644
--- a/app/controllers/projects/group_links_controller.rb
+++ b/app/controllers/projects/group_links_controller.rb
@@ -12,12 +12,7 @@ class Projects::GroupLinksController < Projects::ApplicationController
 
     if group
       return render_404 unless can?(current_user, :read_group, group)
-
-      project.project_group_links.create(
-        group: group,
-        group_access: params[:link_group_access],
-        expires_at: params[:expires_at]
-      )
+      Projects::GroupLinks::CreateService.new(project, current_user, group_link_create_params).execute(group)
     else
       flash[:alert] = 'Please select a group.'
     end
@@ -32,7 +27,9 @@ class Projects::GroupLinksController < Projects::ApplicationController
   end
 
   def destroy
-    project.project_group_links.find(params[:id]).destroy
+    group_link = project.project_group_links.find(params[:id])
+
+    ::Projects::GroupLinks::DestroyService.new(project, current_user).execute(group_link)
 
     respond_to do |format|
       format.html do
@@ -47,4 +44,8 @@ class Projects::GroupLinksController < Projects::ApplicationController
   def group_link_params
     params.require(:group_link).permit(:group_access, :expires_at)
   end
+
+  def group_link_create_params
+    params.permit(:link_group_access, :expires_at)
+  end
 end
diff --git a/app/controllers/projects/issues_controller.rb b/app/controllers/projects/issues_controller.rb
index fe1334c0cfe..6a5e4538717 100644
--- a/app/controllers/projects/issues_controller.rb
+++ b/app/controllers/projects/issues_controller.rb
@@ -74,7 +74,7 @@ class Projects::IssuesController < Projects::ApplicationController
     respond_to do |format|
       format.html
       format.json do
-        render json: serializer.represent(@issue)
+        render json: serializer.represent(@issue, serializer: params[:serializer])
       end
     end
   end
diff --git a/app/controllers/projects/merge_requests_controller.rb b/app/controllers/projects/merge_requests_controller.rb
index c5204080333..2b0294c8387 100644
--- a/app/controllers/projects/merge_requests_controller.rb
+++ b/app/controllers/projects/merge_requests_controller.rb
@@ -83,7 +83,7 @@ class Projects::MergeRequestsController < Projects::MergeRequests::ApplicationCo
       format.json do
         Gitlab::PollingInterval.set_header(response, interval: 10_000)
 
-        render json: serializer.represent(@merge_request, basic: params[:basic])
+        render json: serializer.represent(@merge_request, serializer: params[:serializer])
       end
 
       format.patch  do
diff --git a/app/controllers/projects/milestones_controller.rb b/app/controllers/projects/milestones_controller.rb
index c94384d2a1a..980bbf699b6 100644
--- a/app/controllers/projects/milestones_controller.rb
+++ b/app/controllers/projects/milestones_controller.rb
@@ -2,13 +2,13 @@ class Projects::MilestonesController < Projects::ApplicationController
   include MilestoneActions
 
   before_action :check_issuables_available!
-  before_action :milestone, only: [:edit, :update, :destroy, :show, :merge_requests, :participants, :labels]
+  before_action :milestone, only: [:edit, :update, :destroy, :show, :merge_requests, :participants, :labels, :promote]
 
   # Allow read any milestone
   before_action :authorize_read_milestone!
 
   # Allow admin milestone
-  before_action :authorize_admin_milestone!, except: [:index, :show, :merge_requests, :participants, :labels]
+  before_action :authorize_admin_milestone!, except: [:index, :show, :merge_requests, :participants, :labels, :promote]
 
   respond_to :html
 
@@ -69,6 +69,14 @@ class Projects::MilestonesController < Projects::ApplicationController
     end
   end
 
+  def promote
+    promoted_milestone = Milestones::PromoteService.new(project, current_user).execute(milestone)
+    flash[:notice] = "Milestone has been promoted to group milestone."
+    redirect_to group_milestone_path(project.group, promoted_milestone.iid)
+  rescue Milestones::PromoteService::PromoteMilestoneError => error
+    redirect_to milestone, alert: error.message
+  end
+
   def destroy
     return access_denied! unless can?(current_user, :admin_milestone, @project)
 
diff --git a/app/helpers/issuables_helper.rb b/app/helpers/issuables_helper.rb
index baa2d6e375e..d0069cd48cf 100644
--- a/app/helpers/issuables_helper.rb
+++ b/app/helpers/issuables_helper.rb
@@ -33,15 +33,17 @@ module IssuablesHelper
   end
 
   def serialize_issuable(issuable)
-    case issuable
-    when Issue
-      IssueSerializer.new(current_user: current_user, project: issuable.project).represent(issuable).to_json
-    when MergeRequest
-      MergeRequestSerializer
-        .new(current_user: current_user, project: issuable.project)
-        .represent(issuable)
-        .to_json
-    end
+    serializer_klass = case issuable
+                       when Issue
+                         IssueSerializer
+                       when MergeRequest
+                         MergeRequestSerializer
+                       end
+
+    serializer_klass
+      .new(current_user: current_user, project: issuable.project)
+      .represent(issuable)
+      .to_json
   end
 
   def template_dropdown_tag(issuable, &block)
@@ -357,7 +359,8 @@ module IssuablesHelper
 
   def issuable_sidebar_options(issuable, can_edit_issuable)
     {
-      endpoint: "#{issuable_json_path(issuable)}?basic=true",
+      endpoint: "#{issuable_json_path(issuable)}?serializer=sidebar",
+      toggleSubscriptionEndpoint: toggle_subscription_path(issuable),
       moveIssueEndpoint: move_namespace_project_issue_path(namespace_id: issuable.project.namespace.to_param, project_id: issuable.project, id: issuable),
       projectsAutocompleteEndpoint: autocomplete_projects_path(project_id: @project.id),
       editable: can_edit_issuable,
diff --git a/app/helpers/nav_helper.rb b/app/helpers/nav_helper.rb
index 5a74511afa7..8ada746b244 100644
--- a/app/helpers/nav_helper.rb
+++ b/app/helpers/nav_helper.rb
@@ -19,11 +19,7 @@ module NavHelper
       end
     elsif current_path?('jobs#show')
       %w[page-gutter build-sidebar right-sidebar-expanded]
-    elsif current_path?('wikis#show') ||
-        current_path?('wikis#edit') ||
-        current_path?('wikis#update') ||
-        current_path?('wikis#history') ||
-        current_path?('wikis#git_access')
+    elsif current_controller?('wikis') && current_action?('show', 'create', 'edit', 'update', 'history', 'git_access')
       %w[page-gutter wiki-sidebar right-sidebar-expanded]
     else
       []
diff --git a/app/models/concerns/subscribable.rb b/app/models/concerns/subscribable.rb
index 274b38a7708..f478c8ede18 100644
--- a/app/models/concerns/subscribable.rb
+++ b/app/models/concerns/subscribable.rb
@@ -13,6 +13,8 @@ module Subscribable
   end
 
   def subscribed?(user, project = nil)
+    return false unless user
+
     if subscription = subscriptions.find_by(user: user, project: project)
       subscription.subscribed
     else
diff --git a/app/models/identity.rb b/app/models/identity.rb
index 920a25932b4..ac8094b610e 100644
--- a/app/models/identity.rb
+++ b/app/models/identity.rb
@@ -7,7 +7,10 @@ class Identity < ActiveRecord::Base
   validates :extern_uid, allow_blank: true, uniqueness: { scope: :provider }
   validates :user_id, uniqueness: { scope: :provider }
 
-  scope :with_extern_uid, ->(provider, extern_uid) { where(extern_uid: extern_uid, provider: provider) }
+  scope :with_extern_uid, ->(provider, extern_uid) do
+    extern_uid = Gitlab::LDAP::Person.normalize_dn(extern_uid) if provider.starts_with?('ldap')
+    where(extern_uid: extern_uid, provider: provider)
+  end
 
   def ldap?
     provider.starts_with?('ldap')
diff --git a/app/models/merge_request_diff_commit.rb b/app/models/merge_request_diff_commit.rb
index 670b26d4ca3..b75387e236e 100644
--- a/app/models/merge_request_diff_commit.rb
+++ b/app/models/merge_request_diff_commit.rb
@@ -17,7 +17,9 @@ class MergeRequestDiffCommit < ActiveRecord::Base
       commit_hash.merge(
         merge_request_diff_id: merge_request_diff_id,
         relative_order: index,
-        sha: sha_attribute.type_cast_for_database(sha)
+        sha: sha_attribute.type_cast_for_database(sha),
+        authored_date: Gitlab::Database.sanitize_timestamp(commit_hash[:authored_date]),
+        committed_date: Gitlab::Database.sanitize_timestamp(commit_hash[:committed_date])
       )
     end
 
diff --git a/app/models/project.rb b/app/models/project.rb
index d849082de60..413866b994a 100644
--- a/app/models/project.rb
+++ b/app/models/project.rb
@@ -26,7 +26,15 @@ class Project < ActiveRecord::Base
 
   NUMBER_OF_PERMITTED_BOARDS = 1
   UNKNOWN_IMPORT_URL = 'http://unknown.git'.freeze
-  LATEST_STORAGE_VERSION = 1
+  # Hashed Storage versions handle rolling out new storage to project and dependents models:
+  # nil: legacy
+  # 1: repository
+  # 2: attachments
+  LATEST_STORAGE_VERSION = 2
+  HASHED_STORAGE_FEATURES = {
+    repository: 1,
+    attachments: 2
+  }.freeze
 
   cache_markdown_field :description, pipeline: :description
 
@@ -1084,6 +1092,7 @@ class Project < ActiveRecord::Base
 
   def hook_attrs(backward: true)
     attrs = {
+      id: id,
       name: name,
       description: description,
       web_url: web_url,
@@ -1395,6 +1404,19 @@ class Project < ActiveRecord::Base
     end
   end
 
+  def after_rename_repo
+    path_before_change = previous_changes['path'].first
+
+    # We need to check if project had been rolled out to move resource to hashed storage or not and decide
+    # if we need execute any take action or no-op.
+
+    unless hashed_storage?(:attachments)
+      Gitlab::UploadsTransfer.new.rename_project(path_before_change, self.path, namespace.full_path)
+    end
+
+    Gitlab::PagesTransfer.new.rename_project(path_before_change, self.path, namespace.full_path)
+  end
+
   def rename_repo_notify!
     send_move_instructions(full_path_was)
     expires_full_path_cache
@@ -1405,13 +1427,6 @@ class Project < ActiveRecord::Base
     reload_repository!
   end
 
-  def after_rename_repo
-    path_before_change = previous_changes['path'].first
-
-    Gitlab::UploadsTransfer.new.rename_project(path_before_change, self.path, namespace.full_path)
-    Gitlab::PagesTransfer.new.rename_project(path_before_change, self.path, namespace.full_path)
-  end
-
   def running_or_pending_build_count(force: false)
     Rails.cache.fetch(['projects', id, 'running_or_pending_build_count'], force: force) do
       builds.running_or_pending.count(:all)
@@ -1601,8 +1616,13 @@ class Project < ActiveRecord::Base
     [nil, 0].include?(self.storage_version)
   end
 
-  def hashed_storage?
-    self.storage_version && self.storage_version >= 1
+  # Check if Hashed Storage is enabled for the project with at least informed feature rolled out
+  #
+  # @param [Symbol] feature that needs to be rolled out for the project (:repository, :attachments)
+  def hashed_storage?(feature)
+    raise ArgumentError, "Invalid feature" unless HASHED_STORAGE_FEATURES.include?(feature)
+
+    self.storage_version && self.storage_version >= HASHED_STORAGE_FEATURES[feature]
   end
 
   def renamed?
@@ -1638,7 +1658,7 @@ class Project < ActiveRecord::Base
   end
 
   def migrate_to_hashed_storage!
-    return if hashed_storage?
+    return if hashed_storage?(:repository)
 
     update!(repository_read_only: true)
 
@@ -1663,7 +1683,7 @@ class Project < ActiveRecord::Base
 
   def storage
     @storage ||=
-      if hashed_storage?
+      if hashed_storage?(:repository)
         Storage::HashedProject.new(self)
       else
         Storage::LegacyProject.new(self)
diff --git a/app/serializers/issuable_sidebar_entity.rb b/app/serializers/issuable_sidebar_entity.rb
new file mode 100644
index 00000000000..ff23d8bf0c7
--- /dev/null
+++ b/app/serializers/issuable_sidebar_entity.rb
@@ -0,0 +1,16 @@
+class IssuableSidebarEntity < Grape::Entity
+  include RequestAwareEntity
+
+  expose :participants, using: ::API::Entities::UserBasic do |issuable|
+    issuable.participants(request.current_user)
+  end
+
+  expose :subscribed do |issuable|
+    issuable.subscribed?(request.current_user, issuable.project)
+  end
+
+  expose :time_estimate
+  expose :total_time_spent
+  expose :human_time_estimate
+  expose :human_total_time_spent
+end
diff --git a/app/serializers/issue_serializer.rb b/app/serializers/issue_serializer.rb
index 4fff54a9126..2555595379b 100644
--- a/app/serializers/issue_serializer.rb
+++ b/app/serializers/issue_serializer.rb
@@ -1,3 +1,16 @@
 class IssueSerializer < BaseSerializer
-  entity IssueEntity
+  # This overrided method takes care of which entity should be used
+  # to serialize the `issue` based on `basic` key in `opts` param.
+  # Hence, `entity` doesn't need to be declared on the class scope.
+  def represent(merge_request, opts = {})
+    entity =
+      case opts[:serializer]
+      when 'sidebar'
+        IssueSidebarEntity
+      else
+        IssueEntity
+      end
+
+    super(merge_request, opts, entity)
+  end
 end
diff --git a/app/serializers/issue_sidebar_entity.rb b/app/serializers/issue_sidebar_entity.rb
new file mode 100644
index 00000000000..6c823dbfe95
--- /dev/null
+++ b/app/serializers/issue_sidebar_entity.rb
@@ -0,0 +1,3 @@
+class IssueSidebarEntity < IssuableSidebarEntity
+  expose :assignees, using: API::Entities::UserBasic
+end
diff --git a/app/serializers/merge_request_basic_entity.rb b/app/serializers/merge_request_basic_entity.rb
index 8461f158bb5..d54a6516aed 100644
--- a/app/serializers/merge_request_basic_entity.rb
+++ b/app/serializers/merge_request_basic_entity.rb
@@ -1,11 +1,7 @@
-class MergeRequestBasicEntity < Grape::Entity
+class MergeRequestBasicEntity < IssuableSidebarEntity
   expose :assignee_id
   expose :merge_status
   expose :merge_error
   expose :state
   expose :source_branch_exists?, as: :source_branch_exists
-  expose :time_estimate
-  expose :total_time_spent
-  expose :human_time_estimate
-  expose :human_total_time_spent
 end
diff --git a/app/serializers/merge_request_serializer.rb b/app/serializers/merge_request_serializer.rb
index f67034ce47a..e9d98d8baca 100644
--- a/app/serializers/merge_request_serializer.rb
+++ b/app/serializers/merge_request_serializer.rb
@@ -3,7 +3,14 @@ class MergeRequestSerializer < BaseSerializer
   # to serialize the `merge_request` based on `basic` key in `opts` param.
   # Hence, `entity` doesn't need to be declared on the class scope.
   def represent(merge_request, opts = {})
-    entity = opts[:basic] ? MergeRequestBasicEntity : MergeRequestEntity
+    entity =
+      case opts[:serializer]
+      when 'basic', 'sidebar'
+        MergeRequestBasicEntity
+      else
+        MergeRequestEntity
+      end
+
     super(merge_request, opts, entity)
   end
 end
diff --git a/app/services/milestones/promote_service.rb b/app/services/milestones/promote_service.rb
new file mode 100644
index 00000000000..bd9cfd4e0ea
--- /dev/null
+++ b/app/services/milestones/promote_service.rb
@@ -0,0 +1,80 @@
+module Milestones
+  class PromoteService < Milestones::BaseService
+    PromoteMilestoneError = Class.new(StandardError)
+
+    def execute(milestone)
+      check_project_milestone!(milestone)
+
+      Milestone.transaction do
+        # Destroy all milestones with same title across projects
+        destroy_old_milestones(milestone)
+
+        group_milestone = clone_project_milestone(milestone)
+
+        move_children_to_group_milestone(group_milestone)
+
+        # Just to be safe
+        unless group_milestone.valid?
+          raise_error(group_milestone.errors.full_messages.to_sentence)
+        end
+
+        group_milestone
+      end
+    end
+
+    private
+
+    def milestone_ids_for_merge(group_milestone)
+      # Pluck need to be used here instead of select so the array of ids
+      # is persistent after old milestones gets deleted.
+      @milestone_ids_for_merge ||= begin
+        search_params = { title: group_milestone.title, project_ids: group_project_ids, state: 'all' }
+        milestones = MilestonesFinder.new(search_params).execute
+        milestones.pluck(:id)
+      end
+    end
+
+    def move_children_to_group_milestone(group_milestone)
+      milestone_ids_for_merge(group_milestone).in_groups_of(100) do |milestone_ids|
+        update_children(group_milestone, milestone_ids)
+      end
+    end
+
+    def check_project_milestone!(milestone)
+      raise_error('Only project milestones can be promoted.') unless milestone.project_milestone?
+    end
+
+    def clone_project_milestone(milestone)
+      params = milestone.slice(:title, :description, :start_date, :due_date, :state_event)
+
+      create_service = CreateService.new(group, current_user, params)
+
+      create_service.execute
+    end
+
+    def update_children(group_milestone, milestone_ids)
+      issues = Issue.where(project_id: group_project_ids, milestone_id: milestone_ids)
+      merge_requests = MergeRequest.where(source_project_id: group_project_ids, milestone_id: milestone_ids)
+
+      [issues, merge_requests].each do |issuable_collection|
+        issuable_collection.update_all(milestone_id: group_milestone.id)
+      end
+    end
+
+    def group
+      @group ||= parent.group || raise_error('Project does not belong to a group.')
+    end
+
+    def destroy_old_milestones(group_milestone)
+      Milestone.where(id: milestone_ids_for_merge(group_milestone)).destroy_all
+    end
+
+    def group_project_ids
+      @group_project_ids ||= group.projects.map(&:id)
+    end
+
+    def raise_error(message)
+      raise PromoteMilestoneError, "Promotion failed - #{message}"
+    end
+  end
+end
diff --git a/app/services/projects/group_links/create_service.rb b/app/services/projects/group_links/create_service.rb
new file mode 100644
index 00000000000..35624577024
--- /dev/null
+++ b/app/services/projects/group_links/create_service.rb
@@ -0,0 +1,15 @@
+module Projects
+  module GroupLinks
+    class CreateService < BaseService
+      def execute(group)
+        return false unless group
+
+        project.project_group_links.create(
+          group: group,
+          group_access: params[:link_group_access],
+          expires_at: params[:expires_at]
+        )
+      end
+    end
+  end
+end
diff --git a/app/services/projects/group_links/destroy_service.rb b/app/services/projects/group_links/destroy_service.rb
new file mode 100644
index 00000000000..fbf31214c28
--- /dev/null
+++ b/app/services/projects/group_links/destroy_service.rb
@@ -0,0 +1,10 @@
+module Projects
+  module GroupLinks
+    class DestroyService < BaseService
+      def execute(group_link)
+        return false unless group_link
+        group_link.destroy
+      end
+    end
+  end
+end
diff --git a/app/services/projects/hashed_storage_migration_service.rb b/app/services/projects/hashed_storage_migration_service.rb
index 41259de3a16..f5945f3b87f 100644
--- a/app/services/projects/hashed_storage_migration_service.rb
+++ b/app/services/projects/hashed_storage_migration_service.rb
@@ -10,7 +10,7 @@ module Projects
     end
 
     def execute
-      return if project.hashed_storage?
+      return if project.hashed_storage?(:repository)
 
       @old_disk_path = project.disk_path
       has_wiki = project.wiki.repository_exists?
diff --git a/app/uploaders/file_uploader.rb b/app/uploaders/file_uploader.rb
index 7027ac4b5db..d4ba3a028be 100644
--- a/app/uploaders/file_uploader.rb
+++ b/app/uploaders/file_uploader.rb
@@ -30,7 +30,7 @@ class FileUploader < GitlabUploader
   #
   # Returns a String without a trailing slash
   def self.dynamic_path_segment(model)
-    File.join(CarrierWave.root, base_dir, model.full_path)
+    File.join(CarrierWave.root, base_dir, model.disk_path)
   end
 
   attr_accessor :model
diff --git a/app/views/admin/runners/index.html.haml b/app/views/admin/runners/index.html.haml
index 76f4a817744..4965dffab9d 100644
--- a/app/views/admin/runners/index.html.haml
+++ b/app/views/admin/runners/index.html.haml
@@ -52,22 +52,23 @@
   %br
 
   - if @runners.any?
-    .table-holder
-      %table.table
-        %thead
-          %tr
-            %th Type
-            %th Runner token
-            %th Description
-            %th Version
-            %th Projects
-            %th Jobs
-            %th Tags
-            %th= link_to 'Last contact', admin_runners_path(params.slice(:search).merge(sort: 'contacted_asc'))
-            %th
+    .runners-content
+      .table-holder
+        %table.table
+          %thead
+            %tr
+              %th Type
+              %th Runner token
+              %th Description
+              %th Version
+              %th Projects
+              %th Jobs
+              %th Tags
+              %th Last contact
+              %th
 
-        - @runners.each do |runner|
-          = render "admin/runners/runner", runner: runner
-    = paginate @runners, theme: "gitlab"
+          - @runners.each do |runner|
+            = render "admin/runners/runner", runner: runner
+      = paginate @runners, theme: "gitlab"
   - else
     .nothing-here-block No runners found
diff --git a/app/views/projects/milestones/show.html.haml b/app/views/projects/milestones/show.html.haml
index a5153df1159..9fc297ab7f6 100644
--- a/app/views/projects/milestones/show.html.haml
+++ b/app/views/projects/milestones/show.html.haml
@@ -23,14 +23,18 @@
         = milestone_date_range(@milestone)
     .milestone-buttons
       - if can?(current_user, :admin_milestone, @project)
+        = link_to edit_project_milestone_path(@project, @milestone), class: "btn btn-grouped btn-nr" do
+          Edit
+
+        - if @project.group
+          = link_to promote_project_milestone_path(@milestone.project, @milestone), title: "Promote to Group Milestone", class: 'btn btn-grouped', data: { confirm: "Promoting this milestone will make it available for all projects inside the group. Existing project milestones with the same name will be merged. Are you sure?", toggle: "tooltip" }, method: :post do
+            Promote
+
         - if @milestone.active?
           = link_to 'Close milestone', project_milestone_path(@project, @milestone, milestone: {state_event: :close }), method: :put, class: "btn btn-close btn-nr btn-grouped"
         - else
           = link_to 'Reopen milestone', project_milestone_path(@project, @milestone, milestone: {state_event: :activate }), method: :put, class: "btn btn-reopen btn-nr btn-grouped"
 
-        = link_to edit_project_milestone_path(@project, @milestone), class: "btn btn-grouped btn-nr" do
-          Edit
-
         = link_to project_milestone_path(@project, @milestone), data: { confirm: 'Are you sure?' }, method: :delete, class: "btn btn-grouped btn-danger" do
           Delete
 
@@ -40,6 +44,7 @@
   .detail-page-description.milestone-detail
     %h2.title
       = markdown_field(@milestone, :title)
+
     %div
       - if @milestone.description.present?
         .description
diff --git a/app/views/projects/tree/_tree_header.html.haml b/app/views/projects/tree/_tree_header.html.haml
index 7ea19e6c828..c02f7ee37ed 100644
--- a/app/views/projects/tree/_tree_header.html.haml
+++ b/app/views/projects/tree/_tree_header.html.haml
@@ -2,14 +2,14 @@
   .tree-ref-holder
     = render 'shared/ref_switcher', destination: 'tree', path: @path, show_create: true
 
-  - if show_new_repo?
+  - if show_new_repo? && can_push_branch?(@project, @ref)
     .js-new-dropdown
   - else
     = render 'projects/tree/old_tree_header'
 
 .tree-controls
   - if show_new_repo?
-    = render 'shared/repo/editable_mode'
+    .editable-mode
   - else
     = link_to s_('Commits|History'), project_commits_path(@project, @id), class: 'btn'
 
diff --git a/app/views/shared/icons/_icon_autodevops.svg b/app/views/shared/icons/_icon_autodevops.svg
index dde84e14048..423ca6d760d 100644
--- a/app/views/shared/icons/_icon_autodevops.svg
+++ b/app/views/shared/icons/_icon_autodevops.svg
@@ -29,7 +29,7 @@
     </g>
     <g fill-rule="nonzero" transform="rotate(15 -315.035 277.714)">
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@@ -37,7 +37,7 @@
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diff --git a/app/views/shared/issuable/_participants.html.haml b/app/views/shared/issuable/_participants.html.haml
deleted file mode 100644
index 3f553c9fede..00000000000
--- a/app/views/shared/issuable/_participants.html.haml
+++ /dev/null
@@ -1,18 +0,0 @@
-- participants_row = 7
-- participants_size = participants.size
-- participants_extra = participants_size - participants_row
-.block.participants
-  .sidebar-collapsed-icon
-    = icon('users')
-    %span
-      = participants.count
-  .title.hide-collapsed
-    = pluralize participants.count, "participant"
-  .hide-collapsed.participants-list
-    - participants.each do |participant|
-      .participants-author.js-participants-author
-        = link_to_member(@project, participant, name: false, size: 24, lazy_load: true)
-  - if participants_extra > 0
-    .hide-collapsed.participants-more
-      %button.btn-transparent.btn-blank.js-participants-more{ type: 'button', data: { original_text: "+ #{participants_size - 7} more", less_text: "- show less" } }
-        + #{participants_extra} more
diff --git a/app/views/shared/issuable/_sidebar.html.haml b/app/views/shared/issuable/_sidebar.html.haml
index 7b7411b1e23..e0009a35b9f 100644
--- a/app/views/shared/issuable/_sidebar.html.haml
+++ b/app/views/shared/issuable/_sidebar.html.haml
@@ -123,17 +123,10 @@
         %script#js-lock-issue-data{ type: "application/json" }= { is_locked: issuable.discussion_locked?, is_editable: can_edit_issuable }.to_json.html_safe
         #js-lock-entry-point
 
-      = render "shared/issuable/participants", participants: issuable.participants(current_user)
+      .js-sidebar-participants-entry-point
+
       - if current_user
-        - subscribed = issuable.subscribed?(current_user, @project)
-        .block.light.subscription{ data: { url: toggle_subscription_path(issuable) } }
-          .sidebar-collapsed-icon
-            = icon('rss', 'aria-hidden': 'true')
-          %span.issuable-header-text.hide-collapsed.pull-left
-            Notifications
-          - subscribtion_status = subscribed ? 'subscribed' : 'unsubscribed'
-          %button.btn.btn-default.pull-right.js-subscribe-button.issuable-subscribe-button.hide-collapsed{ type: "button" }
-            %span= subscribed ? 'Unsubscribe' : 'Subscribe'
+        .js-sidebar-subscriptions-entry-point
 
       - project_ref = cross_project_reference(@project, issuable)
       .block.project-reference
diff --git a/app/views/shared/milestones/_milestone.html.haml b/app/views/shared/milestones/_milestone.html.haml
index 305e2542281..7ba8f9d4313 100644
--- a/app/views/shared/milestones/_milestone.html.haml
+++ b/app/views/shared/milestones/_milestone.html.haml
@@ -49,6 +49,13 @@
           = link_to edit_project_milestone_path(milestone.project, milestone), class: "btn btn-xs btn-grouped" do
             Edit
           \
+
+          - if @project.group
+            = link_to promote_project_milestone_path(milestone.project, milestone), title: "Promote to Group Milestone", class: 'btn btn-xs btn-grouped', data: { confirm: "Promoting this milestone will make it available for all projects inside the group. Existing project milestones with the same name will be merged. Are you sure?", toggle: "tooltip" }, method: :post do
+              Promote
+
           = link_to 'Close Milestone', project_milestone_path(@project, milestone, milestone: {state_event: :close }), method: :put, remote: true, class: "btn btn-xs btn-close btn-grouped"
+
           = link_to project_milestone_path(milestone.project, milestone), data: { confirm: 'Are you sure?' }, method: :delete, class: "btn btn-xs btn-remove btn-grouped" do
             Delete
+
diff --git a/app/views/shared/repo/_editable_mode.html.haml b/app/views/shared/repo/_editable_mode.html.haml
deleted file mode 100644
index 73fdb8b523f..00000000000
--- a/app/views/shared/repo/_editable_mode.html.haml
+++ /dev/null
@@ -1,2 +0,0 @@
-.editable-mode
-  %repo-edit-button
diff --git a/app/views/shared/repo/_repo.html.haml b/app/views/shared/repo/_repo.html.haml
index 7861f92b33f..5867ea58378 100644
--- a/app/views/shared/repo/_repo.html.haml
+++ b/app/views/shared/repo/_repo.html.haml
@@ -1,11 +1,12 @@
 #repo{ data: { root: @path.empty?.to_s,
+               root_url: project_tree_path(project),
                url: content_url,
+               current_branch: @ref,
+               ref: @commit.id,
                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}}' }),
+               new_merge_request_url: namespace_project_new_merge_request_path(project.namespace, project, merge_request: { source_branch: '' }),
                can_commit: (!!can_push_branch?(project, @ref)).to_s,
                on_top_of_branch: (!!on_top_of_branch?(project, @ref)).to_s,
                current_path: @path } }
diff --git a/app/workers/update_merge_requests_worker.rb b/app/workers/update_merge_requests_worker.rb
index 89ae17cef37..150788ca611 100644
--- a/app/workers/update_merge_requests_worker.rb
+++ b/app/workers/update_merge_requests_worker.rb
@@ -2,6 +2,10 @@ class UpdateMergeRequestsWorker
   include Sidekiq::Worker
   include DedicatedSidekiqQueue
 
+  def metrics_tags
+    @metrics_tags || {}
+  end
+
   def perform(project_id, user_id, oldrev, newrev, ref)
     project = Project.find_by(id: project_id)
     return unless project
@@ -9,6 +13,11 @@ class UpdateMergeRequestsWorker
     user = User.find_by(id: user_id)
     return unless user
 
+    @metrics_tags = {
+      project_id: project_id,
+      user_id: user_id
+    }
+
     MergeRequests::RefreshService.new(project, user).execute(oldrev, newrev, ref)
   end
 end