Merge remote-tracking branch 'upstream/master' into ce-to-ee-2018-07-26

# Conflicts:
#	Gemfile.lock
#	app/assets/javascripts/boards/index.js
#	app/assets/javascripts/vue_shared/components/reports/issues_list.vue
#	app/assets/javascripts/vue_shared/components/reports/report_issues.vue
#	app/helpers/environments_helper.rb
#	lib/gitlab/prometheus/queries/query_additional_metrics.rb
#	locale/gitlab.pot

[ci skip]

.gitlab-ci.yml

@@ -572,13 +572,12 @@ setup-test-env:
       - vendor/gitaly-ruby
 
 danger-review:
-  image: registry.gitlab.com/gitlab-org/gitaly/dangercontainer:latest
+  image: registry.gitlab.com/gitlab-org/gitlab-build-images:danger
   stage: test
   allow_failure: true
-  before_script:
-    - source scripts/utils.sh
-    - retry gem install danger --no-ri --no-rdoc
   cache: {}
+  dependencies: []
+  before_script: []
   only:
     variables:
       - $DANGER_GITLAB_API_TOKEN

Gemfile.lock

@@ -400,9 +400,14 @@ GEM
       google-protobuf (~> 3.1)
       googleapis-common-protos-types (~> 1.0.0)
       googleauth (>= 0.5.1, < 0.7)
+<<<<<<< HEAD
     gssapi (1.2.0)
       ffi (>= 1.0.1)
     haml (4.0.7)
+=======
+    haml (5.0.4)
+      temple (>= 0.8.0)
+>>>>>>> upstream/master
       tilt
     haml_lint (0.26.0)
       haml (>= 4.0, < 5.1)

app/assets/javascripts/boards/index.js

@@ -178,6 +178,7 @@ export default () => {
             });
         }
       },
+<<<<<<< HEAD
       updateWeight(newWeight, id) {
         const { issue } = Store.detail;
         if (issue.id === id && issue.sidebarInfoEndpoint) {
@@ -196,6 +197,8 @@ export default () => {
             });
         }
       },
+=======
+>>>>>>> upstream/master
     },
   });
 
@@ -210,6 +213,7 @@ export default () => {
     },
   });
 
+<<<<<<< HEAD
   const configEl = document.querySelector('.js-board-config');
 
   if (configEl) {
@@ -283,6 +287,36 @@ export default () => {
           return '';
         },
       },
+=======
+  const issueBoardsModal = document.getElementById('js-add-issues-btn');
+
+  if (issueBoardsModal) {
+    gl.IssueBoardsModalAddBtn = new Vue({
+      el: issueBoardsModal,
+      mixins: [modalMixin],
+      data() {
+        return {
+          modal: ModalStore.store,
+          store: Store.state,
+          canAdminList: this.$options.el.hasAttribute('data-can-admin-list'),
+        };
+      },
+      computed: {
+        disabled() {
+          if (!this.store) {
+            return true;
+          }
+          return !this.store.lists.filter(list => !list.preset).length;
+        },
+        tooltipTitle() {
+          if (this.disabled) {
+            return 'Please add a list to your board first';
+          }
+
+          return '';
+        },
+      },
+>>>>>>> upstream/master
       watch: {
         disabled() {
           this.updateTooltip();
@@ -308,6 +342,7 @@ export default () => {
             this.toggleModal(true);
           }
         },
+<<<<<<< HEAD
       },
       template: `
         <div class="board-extra-actions">
@@ -376,4 +411,25 @@ export default () => {
       'boards-selector': gl.issueBoards.BoardsSelector,
     },
   });
+=======
+      },
+      template: `
+        <div class="board-extra-actions">
+          <button
+            class="btn btn-create prepend-left-10"
+            type="button"
+            data-placement="bottom"
+            ref="addIssuesButton"
+            :class="{ 'disabled': disabled }"
+            :title="tooltipTitle"
+            :aria-disabled="disabled"
+            v-if="canAdminList"
+            @click="openModal">
+            Add issues
+          </button>
+        </div>
+      `,
+    });
+  }
+>>>>>>> upstream/master
 };

app/assets/javascripts/ide/components/changed_file_icon.vue

@@ -3,6 +3,7 @@ import tooltip from '~/vue_shared/directives/tooltip';
 import Icon from '~/vue_shared/components/icon.vue';
 import { pluralize } from '~/lib/utils/text_utility';
 import { __, sprintf } from '~/locale';
+import { getCommitIconMap } from '../utils';
 
 export default {
   components: {
@@ -34,16 +35,14 @@ export default {
   },
   computed: {
     changedIcon() {
-      const suffix = this.file.staged && !this.showStagedIcon ? '-solid' : '';
-      return this.file.tempFile && !this.forceModifiedIcon
-        ? `file-addition${suffix}`
-        : `file-modified${suffix}`;
-    },
-    stagedIcon() {
-      return `${this.changedIcon}-solid`;
+      const suffix = !this.file.changed && this.file.staged && !this.showStagedIcon ? '-solid' : '';
+
+      if (this.forceModifiedIcon) return `file-modified${suffix}`;
+
+      return `${getCommitIconMap(this.file).icon}${suffix}`;
     },
     changedIconClass() {
-      return `multi-${this.changedIcon} float-left`;
+      return `ide-${this.changedIcon} float-left`;
     },
     tooltipTitle() {
       if (!this.showTooltip) return undefined;
@@ -66,6 +65,9 @@ export default {
 
       return undefined;
     },
+    showIcon() {
+      return this.file.changed || this.file.tempFile || this.file.staged || this.file.deleted;
+    },
   },
 };
 </script>
@@ -79,7 +81,7 @@ export default {
     class="ide-file-changed-icon"
   >
     <icon
-      v-if="file.changed || file.tempFile || file.staged"
+      v-if="showIcon"
       :name="changedIcon"
       :size="12"
       :css-classes="changedIconClass"

app/assets/javascripts/ide/components/commit_sidebar/list_item.vue

@@ -5,6 +5,7 @@ import Icon from '~/vue_shared/components/icon.vue';
 import StageButton from './stage_button.vue';
 import UnstageButton from './unstage_button.vue';
 import { viewerTypes } from '../../constants';
+import { getCommitIconMap } from '../../utils';
 
 export default {
   components: {
@@ -42,11 +43,12 @@ export default {
   },
   computed: {
     iconName() {
-      const prefix = this.stagedList ? '-solid' : '';
-      return this.file.tempFile ? `file-addition${prefix}` : `file-modified${prefix}`;
+      const suffix = this.stagedList ? '-solid' : '';
+
+      return `${getCommitIconMap(this.file).icon}${suffix}`;
     },
     iconClass() {
-      return `multi-file-${this.file.tempFile ? 'addition' : 'modified'} append-right-8`;
+      return `${getCommitIconMap(this.file).class} append-right-8`;
     },
     fullKey() {
       return `${this.keyPrefix}-${this.file.key}`;
@@ -67,6 +69,8 @@ export default {
       'stageChange',
     ]),
     openFileInEditor() {
+      if (this.file.type === 'tree') return null;
+
       return this.openPendingTab({
         file: this.file,
         keyPrefix: this.keyPrefix,

app/assets/javascripts/ide/components/ide_review.vue

@@ -10,7 +10,7 @@ export default {
     EditorModeDropdown,
   },
   computed: {
-    ...mapGetters(['currentMergeRequest']),
+    ...mapGetters(['currentMergeRequest', 'activeFile']),
     ...mapState(['viewer', 'currentMergeRequestId']),
     showLatestChangesText() {
       return !this.currentMergeRequestId || this.viewer === viewerTypes.diff;
@@ -23,12 +23,20 @@ export default {
     },
   },
   mounted() {
+    if (this.activeFile && this.activeFile.pending && !this.activeFile.deleted) {
+      this.$router.push(`/project${this.activeFile.url}`, () => {
+        this.updateViewer('editor');
+      });
+    } else if (this.activeFile && this.activeFile.deleted) {
+      this.resetOpenFiles();
+    }
+
     this.$nextTick(() => {
       this.updateViewer(this.currentMergeRequestId ? viewerTypes.mr : viewerTypes.diff);
     });
   },
   methods: {
-    ...mapActions(['updateViewer']),
+    ...mapActions(['updateViewer', 'resetOpenFiles']),
   },
 };
 </script>
@@ -36,7 +44,6 @@ export default {
 <template>
   <ide-tree-list
     :viewer-type="viewer"
-    :disable-action-dropdown="true"
     header-class="ide-review-header"
   >
     <template

app/assets/javascripts/ide/components/ide_tree.vue

@@ -17,14 +17,18 @@ export default {
     ...mapGetters(['currentProject', 'currentTree', 'activeFile']),
   },
   mounted() {
-    if (this.activeFile && this.activeFile.pending) {
+    if (!this.activeFile) return;
+
+    if (this.activeFile.pending && !this.activeFile.deleted) {
       this.$router.push(`/project${this.activeFile.url}`, () => {
         this.updateViewer('editor');
       });
+    } else if (this.activeFile.deleted) {
+      this.resetOpenFiles();
     }
   },
   methods: {
-    ...mapActions(['updateViewer', 'openNewEntryModal', 'createTempEntry']),
+    ...mapActions(['updateViewer', 'openNewEntryModal', 'createTempEntry', 'resetOpenFiles']),
   },
 };
 </script>

app/assets/javascripts/ide/components/ide_tree_list.vue

@@ -22,11 +22,6 @@ export default {
       required: false,
       default: null,
     },
-    disableActionDropdown: {
-      type: Boolean,
-      required: false,
-      default: false,
-    },
   },
   computed: {
     ...mapState(['currentBranchId']),
@@ -69,7 +64,6 @@ export default {
         :key="file.key"
         :file="file"
         :level="0"
-        :disable-action-dropdown="disableActionDropdown"
       />
     </template>
   </div>

app/assets/javascripts/ide/components/new_dropdown/index.vue

@@ -13,7 +13,7 @@ export default {
     ItemButton,
   },
   props: {
-    branch: {
+    type: {
       type: String,
       required: true,
     },
@@ -45,7 +45,7 @@ export default {
     },
   },
   methods: {
-    ...mapActions(['createTempEntry', 'openNewEntryModal']),
+    ...mapActions(['createTempEntry', 'openNewEntryModal', 'deleteEntry']),
     createNewItem(type) {
       this.openNewEntryModal({ type, path: this.path });
       this.dropdownOpen = false;
@@ -82,6 +82,7 @@ export default {
         ref="dropdownMenu"
         class="dropdown-menu dropdown-menu-right"
       >
+        <template v-if="type === 'tree'">
           <li>
             <item-button
               :label="__('New file')"
@@ -106,6 +107,17 @@ export default {
               @click="createNewItem('tree')"
             />
           </li>
+          <li class="divider"></li>
+        </template>
+        <li>
+          <item-button
+            :label="__('Delete')"
+            class="d-flex"
+            icon="remove"
+            icon-classes="mr-2"
+            @click="deleteEntry(path)"
+          />
+        </li>
       </ul>
     </div>
   </div>

app/assets/javascripts/ide/components/repo_commit_section.vue

@@ -44,7 +44,7 @@ export default {
     },
   },
   mounted() {
-    if (this.lastOpenedFile) {
+    if (this.lastOpenedFile && this.lastOpenedFile.type !== 'tree') {
       this.openPendingTab({
         file: this.lastOpenedFile,
         keyPrefix: this.lastOpenedFile.changed ? stageKeys.unstaged : stageKeys.staged,

app/assets/javascripts/ide/components/repo_editor.vue

@@ -87,7 +87,9 @@ export default {
       this.editor.updateDimensions();
     },
     viewer() {
+      if (!this.file.pending) {
         this.createEditorInstance();
+      }
     },
     panelResizing() {
       if (!this.panelResizing) {
@@ -109,6 +111,7 @@ export default {
   },
   methods: {
     ...mapActions([
+      'getFileData',
       'getRawFileData',
       'changeFileContent',
       'setFileLanguage',
@@ -123,10 +126,16 @@ export default {
 
       this.editor.clearEditor();
 
+      this.getFileData({
+        path: this.file.path,
+        makeFileActive: false,
+      })
+        .then(() =>
           this.getRawFileData({
             path: this.file.path,
             baseSha: this.currentMergeRequest ? this.currentMergeRequest.baseCommitSha : '',
-      })
+          }),
+        )
         .then(() => {
           this.createEditorInstance();
         })
@@ -246,6 +255,8 @@ export default {
       ref="editor"
       :class="{
         'is-readonly': isCommitModeActive,
+        'is-deleted': file.deleted,
+        'is-added': file.tempFile
       }"
       class="multi-file-editor-holder"
     >

app/assets/javascripts/ide/components/repo_file.vue

@@ -34,11 +34,6 @@ export default {
       type: Number,
       required: true,
     },
-    disableActionDropdown: {
-      type: Boolean,
-      required: false,
-      default: false,
-    },
   },
   data() {
     return {
@@ -212,8 +207,7 @@ export default {
           />
         </span>
         <new-dropdown
-          v-if="isTree && !disableActionDropdown"
-          :project-id="file.projectId"
+          :type="file.type"
           :branch="file.branchId"
           :path="file.path"
           :mouse-over="mouseOver"

app/assets/javascripts/ide/components/repo_tab.vue

@@ -37,7 +37,7 @@ export default {
       return this.fileHasChanged ? !this.tabMouseOver : false;
     },
     fileHasChanged() {
-      return this.tab.changed || this.tab.tempFile || this.tab.staged;
+      return this.tab.changed || this.tab.tempFile || this.tab.staged || this.tab.deleted;
     },
   },
 
@@ -71,7 +71,8 @@ export default {
 <template>
   <li
     :class="{
-      active: tab.active
+      active: tab.active,
+      disabled: tab.pending
     }"
     @click="clickFile(tab)"
     @mouseover="mouseOverTab"
@@ -105,7 +106,6 @@ export default {
       <changed-file-icon
         v-else
         :file="tab"
-        :force-modified-icon="true"
       />
     </button>
   </li>

app/assets/javascripts/ide/constants.js

@@ -38,3 +38,18 @@ export const stageKeys = {
   unstaged: 'unstaged',
   staged: 'staged',
 };
+
+export const commitItemIconMap = {
+  addition: {
+    icon: 'file-addition',
+    class: 'ide-file-addition',
+  },
+  modified: {
+    icon: 'file-modified',
+    class: 'ide-file-modified',
+  },
+  deleted: {
+    icon: 'file-deletion',
+    class: 'ide-file-deletion',
+  },
+};

app/assets/javascripts/ide/lib/common/model.js

@@ -7,7 +7,7 @@ export default class Model {
     this.disposable = new Disposable();
     this.file = file;
     this.head = head;
-    this.content = file.content !== '' ? file.content : file.raw;
+    this.content = file.content !== '' || file.deleted ? file.content : file.raw;
 
     this.disposable.add(
       (this.originalModel = monacoEditor.createModel(

app/assets/javascripts/ide/services/index.js

@@ -18,7 +18,7 @@ export default {
 
     return axios
       .get(file.rawPath, {
-        params: { format: 'json' },
+        transformResponse: [f => f],
       })
       .then(({ data }) => data);
   },
@@ -33,7 +33,7 @@ export default {
 
     return axios
       .get(file.rawPath.replace(`/raw/${file.branchId}/${file.path}`, `/raw/${sha}/${file.path}`), {
-        params: { format: 'json' },
+        transformResponse: [f => f],
       })
       .then(({ data }) => data);
   },

app/assets/javascripts/ide/stores/actions.js

@@ -185,6 +185,14 @@ export const openNewEntryModal = ({ commit }, { type, path = '' }) => {
   $('#ide-new-entry').modal('show');
 };
 
+export const deleteEntry = ({ commit, dispatch, state }, path) => {
+  dispatch('burstUnusedSeal');
+  dispatch('closeFile', state.entries[path]);
+  commit(types.DELETE_ENTRY, path);
+};
+
+export const resetOpenFiles = ({ commit }) => commit(types.RESET_OPEN_FILES);
+
 export * from './actions/tree';
 export * from './actions/file';
 export * from './actions/project';

app/assets/javascripts/ide/stores/actions/file.js

@@ -61,7 +61,11 @@ export const setFileActive = ({ commit, state, getters, dispatch }, path) => {
 
 export const getFileData = ({ state, commit, dispatch }, { path, makeFileActive = true }) => {
   const file = state.entries[path];
+
+  if (file.raw || file.tempFile) return Promise.resolve();
+
   commit(types.TOGGLE_LOADING, { entry: file });
+
   return service
     .getFileData(
       `${gon.relative_url_root ? gon.relative_url_root : ''}${file.url.replace('/-/', '/')}`,
@@ -71,7 +75,7 @@ export const getFileData = ({ state, commit, dispatch }, { path, makeFileActive
       setPageTitle(decodeURI(normalizedHeaders['PAGE-TITLE']));
 
       commit(types.SET_FILE_DATA, { data, file });
-      commit(types.TOGGLE_FILE_OPEN, path);
+      if (makeFileActive) commit(types.TOGGLE_FILE_OPEN, path);
       if (makeFileActive) dispatch('setFileActive', path);
       commit(types.TOGGLE_LOADING, { entry: file });
     })
@@ -97,7 +101,7 @@ export const getRawFileData = ({ state, commit, dispatch }, { path, baseSha }) =
     service
       .getRawFileData(file)
       .then(raw => {
-        commit(types.SET_FILE_RAW_DATA, { file, raw });
+        if (!file.tempFile) commit(types.SET_FILE_RAW_DATA, { file, raw });
         if (file.mrChange && file.mrChange.new_file === false) {
           service
             .getBaseRawFileData(file, baseSha)

app/assets/javascripts/ide/stores/actions/tree.js

@@ -21,14 +21,12 @@ export const showTreeEntry = ({ commit, dispatch, state }, path) => {
 export const handleTreeEntryAction = ({ commit, dispatch }, row) => {
   if (row.type === 'tree') {
     dispatch('toggleTreeOpen', row.path);
-  } else if (row.type === 'blob' && (row.opened || row.changed)) {
-    if (row.changed && !row.opened) {
+  } else if (row.type === 'blob') {
+    if (!row.opened) {
       commit(types.TOGGLE_FILE_OPEN, row.path);
     }
 
     dispatch('setFileActive', row.path);
-  } else {
-    dispatch('getFileData', { path: row.path });
   }
 
   dispatch('showTreeEntry', row.path);

app/assets/javascripts/ide/stores/modules/commit/actions.js

@@ -174,12 +174,14 @@ export const commitChanges = ({ commit, state, getters, dispatch, rootState, roo
             dispatch('updateActivityBarView', activityBarViews.edit, { root: true });
             dispatch('updateViewer', 'editor', { root: true });
 
+            if (rootGetters.activeFile) {
               router.push(
                 `/project/${rootState.currentProjectId}/blob/${getters.branchName}/-/${
                   rootGetters.activeFile.path
                 }`,
               );
             }
+          }
         })
         .then(() => dispatch('updateCommitAction', consts.COMMIT_TO_CURRENT_BRANCH))
         .then(() =>

app/assets/javascripts/ide/stores/modules/commit/getters.js

-import { sprintf, n__ } from '../../../../locale';
+import { sprintf, n__, __ } from '../../../../locale';
 import * as consts from './constants';
 
 const BRANCH_SUFFIX_COUNT = 5;
+const createTranslatedTextForFiles = (files, text) => {
+  if (!files.length) return null;
+
+  return sprintf(n__('%{text} %{files}', '%{text} %{files} files', files.length), {
+    files: files.reduce((acc, val) => acc.concat(val.path), []).join(', '),
+    text,
+  });
+};
 
 export const discardDraftButtonDisabled = state =>
   state.commitMessage === '' || state.submitCommitLoading;
@@ -29,14 +37,16 @@ export const branchName = (state, getters, rootState) => {
 export const preBuiltCommitMessage = (state, _, rootState) => {
   if (state.commitMessage) return state.commitMessage;
 
-  const files = (rootState.stagedFiles.length
-    ? rootState.stagedFiles
-    : rootState.changedFiles
-  ).reduce((acc, val) => acc.concat(val.path), []);
+  const files = rootState.stagedFiles.length ? rootState.stagedFiles : rootState.changedFiles;
+  const modifiedFiles = files.filter(f => !f.deleted);
+  const deletedFiles = files.filter(f => f.deleted);
 
-  return sprintf(n__('Update %{files}', 'Update %{files} files', files.length), {
-    files: files.join(', '),
-  });
+  return [
+    createTranslatedTextForFiles(modifiedFiles, __('Update')),
+    createTranslatedTextForFiles(deletedFiles, __('Deleted')),
+  ]
+    .filter(t => t)
+    .join('\n');
 };
 
 // prevent babel-plugin-rewire from generating an invalid default during karma tests

app/assets/javascripts/ide/stores/mutation_types.js

@@ -76,3 +76,4 @@ export const RESET_OPEN_FILES = 'RESET_OPEN_FILES';
 export const SET_ERROR_MESSAGE = 'SET_ERROR_MESSAGE';
 
 export const OPEN_NEW_ENTRY_MODAL = 'OPEN_NEW_ENTRY_MODAL';
+export const DELETE_ENTRY = 'DELETE_ENTRY';

app/assets/javascripts/ide/stores/mutations.js

+/* eslint-disable no-param-reassign */
 import * as types from './mutation_types';
 import projectMutations from './mutations/project';
 import mergeRequestMutation from './mutations/merge_request';
@@ -171,6 +172,16 @@ export default {
       newEntryModal: { type, path },
     });
   },
+  [types.DELETE_ENTRY](state, path) {
+    const entry = state.entries[path];
+    const parent = entry.parentPath
+      ? state.entries[entry.parentPath]
+      : state.trees[`${state.currentProjectId}/${state.currentBranchId}`];
+
+    entry.deleted = true;
+    state.changedFiles = state.changedFiles.concat(entry);
+    parent.tree = parent.tree.filter(f => f.path !== entry.path);
+  },
   ...projectMutations,
   ...mergeRequestMutation,
   ...fileMutations,

app/assets/javascripts/ide/stores/mutations/file.js

 /* eslint-disable no-param-reassign */
 import * as types from '../mutation_types';
+import { sortTree } from '../utils';
 import { diffModes } from '../../constants';
 
 export default {
@@ -51,9 +52,17 @@ export default {
     });
   },
   [types.SET_FILE_RAW_DATA](state, { file, raw }) {
+    const openPendingFile = state.openFiles.find(
+      f => f.path === file.path && f.pending && !f.tempFile,
+    );
+
     Object.assign(state.entries[file.path], {
       raw,
     });
+
+    if (openPendingFile) {
+      openPendingFile.raw = raw;
+    }
   },
   [types.SET_FILE_BASE_RAW_DATA](state, { file, baseRaw }) {
     Object.assign(state.entries[file.path], {
@@ -109,11 +118,22 @@ export default {
   },
   [types.DISCARD_FILE_CHANGES](state, path) {
     const stagedFile = state.stagedFiles.find(f => f.path === path);
+    const entry = state.entries[path];
+    const { deleted } = entry;
 
     Object.assign(state.entries[path], {
       content: stagedFile ? stagedFile.content : state.entries[path].raw,
       changed: false,
+      deleted: false,
     });
+
+    if (deleted) {
+      const parent = entry.parentPath
+        ? state.entries[entry.parentPath]
+        : state.trees[`${state.currentProjectId}/${state.currentBranchId}`];
+
+      parent.tree = sortTree(parent.tree.concat(entry));
+    }
   },
   [types.ADD_FILE_TO_CHANGED](state, path) {
     Object.assign(state, {

app/assets/javascripts/ide/stores/utils.js

@@ -46,6 +46,7 @@ export const dataStructure = () => ({
   parentPath: null,
   lastOpenedAt: 0,
   mrChange: null,
+  deleted: false,
 });
 
 export const decorateData = entity => {
@@ -105,15 +106,37 @@ export const setPageTitle = title => {
   document.title = title;
 };
 
+export const commitActionForFile = file => {
+  if (file.deleted) {
+    return 'delete';
+  } else if (file.tempFile) {
+    return 'create';
+  }
+
+  return 'update';
+};
+
+export const getCommitFiles = (stagedFiles, deleteTree = false) =>
+  stagedFiles.reduce((acc, file) => {
+    if ((file.deleted || deleteTree) && file.type === 'tree') {
+      return acc.concat(getCommitFiles(file.tree, true));
+    }
+
+    return acc.concat({
+      ...file,
+      deleted: deleteTree || file.deleted,
+    });
+  }, []);
+
 export const createCommitPayload = ({ branch, getters, newBranch, state, rootState }) => ({
   branch,
   commit_message: state.commitMessage || getters.preBuiltCommitMessage,
-  actions: rootState.stagedFiles.map(f => ({
-    action: f.tempFile ? 'create' : 'update',
+  actions: getCommitFiles(rootState.stagedFiles).map(f => ({
+    action: commitActionForFile(f),
     file_path: f.path,
     content: f.content,
     encoding: f.base64 ? 'base64' : 'text',
-    last_commit_id: newBranch ? undefined : f.lastCommitSha,
+    last_commit_id: newBranch || f.deleted ? undefined : f.lastCommitSha,
   })),
   start_branch: newBranch ? rootState.currentBranchId : undefined,
 });

app/assets/javascripts/ide/utils.js

+import { commitItemIconMap } from './constants';
+
+// eslint-disable-next-line import/prefer-default-export
+export const getCommitIconMap = file => {
+  if (file.deleted) {
+    return commitItemIconMap.deleted;
+  } else if (file.tempFile) {
+    return commitItemIconMap.addition;
+  }
+
+  return commitItemIconMap.modified;
+};

app/assets/javascripts/vue_shared/components/panel_resizer.vue

@@ -32,7 +32,7 @@
     },
     computed: {
       className() {
-        return `drag${this.side}`;
+        return `drag-${this.side}`;
       },
       cursorStyle() {
         if (this.enabled) {
@@ -44,8 +44,15 @@
     methods: {
       resetSize(e) {
         e.preventDefault();
+        this.$emit('resize-start', this.size);
+
         this.size = this.startSize;
         this.$emit('update:size', this.size);
+
+        // End resizing on next tick so that listeners can react to DOM changes
+        this.$nextTick(() => {
+          this.$emit('resize-end', this.size);
+        });
       },
       startDrag(e) {
         if (this.enabled) {
@@ -84,7 +91,7 @@
   <div
     :class="className"
     :style="cursorStyle"
-    class="dragHandle"
+    class="drag-handle"
     @mousedown="startDrag"
     @dblclick="resetSize"
   ></div>

app/assets/javascripts/vue_shared/components/reports/issues_list.vue

@@ -5,9 +5,12 @@ import {
   STATUS_FAILED,
   STATUS_NEUTRAL,
 } from '~/vue_shared/components/reports/constants';
+<<<<<<< HEAD
 import { componentNames } from 'ee/vue_shared/components/reports/issue_body';
 
 import SastContainerInfo from 'ee/vue_shared/security_reports/components/sast_container_info.vue';
+=======
+>>>>>>> upstream/master
 
 /**
  * Renders block of issues
@@ -18,7 +21,10 @@ export default {
     IssuesBlock,
     SastContainerInfo,
   },
+<<<<<<< HEAD
   componentNames,
+=======
+>>>>>>> upstream/master
   success: STATUS_SUCCESS,
   failed: STATUS_FAILED,
   neutral: STATUS_NEUTRAL,

app/assets/javascripts/vue_shared/components/reports/report_issues.vue

 <script>
 import IssueStatusIcon from '~/vue_shared/components/reports/issue_status_icon.vue';
+<<<<<<< HEAD
 import { components, componentNames } from 'ee/vue_shared/components/reports/issue_body';
+=======
+import { components, componentNames } from '~/vue_shared/components/reports/issue_body';
+>>>>>>> upstream/master
 
 export default {
   name: 'ReportIssues',

app/assets/stylesheets/framework/header.scss

@@ -567,9 +567,6 @@
   border-bottom: 1px solid $white-normal;
 
   .mx-auto {
-    margin: 8px 0;
-    text-align: center;
-
     .tanuki-logo,
     img {
       height: 36px;

app/assets/stylesheets/framework/variables.scss

@@ -874,3 +874,5 @@ $font-family-monospace: $monospace-font;
 $input-line-height: 20px;
 $btn-line-height: 20px;
 $table-accent-bg: $gray-light;
+$card-border-color: $border-color;
+$card-cap-bg: $gray-light;

app/assets/stylesheets/pages/repo.scss → app/assets/stylesheets/page_bundles/ide.scss

+@import 'framework/variables';
+@import 'framework/mixins';
+
 .project-refs-form,
 .project-refs-target-form {
   display: inline-block;
@@ -74,6 +77,7 @@
     .ide-file-icon-holder {
       display: flex;
       align-items: center;
+      color: $theme-gray-700;
     }
 
     .ide-file-changed-icon {
@@ -161,12 +165,23 @@
       background-color: $white-light;
       border-bottom-color: $white-light;
     }
+
+    &:not(.disabled) {
+      .multi-file-tab {
+        cursor: pointer;
+      }
+    }
+
+    &.disabled {
+      .multi-file-tab-close {
+        cursor: default;
+      }
+    }
   }
 }
 
 .multi-file-tab {
   @include str-truncated(141px);
-  cursor: pointer;
 
   svg {
     vertical-align: middle;
@@ -241,6 +256,38 @@
     }
   }
 
+  .is-deleted {
+    .editor.modified {
+      .margin-view-overlays,
+      .lines-content,
+      .decorationsOverviewRuler {
+        // !important to override monaco inline styles
+        display: none !important;
+      }
+    }
+
+    .diffOverviewRuler.modified {
+      // !important to override monaco inline styles
+      display: none !important;
+    }
+  }
+
+  .is-added {
+    .editor.original {
+      .margin-view-overlays,
+      .lines-content,
+      .decorationsOverviewRuler {
+        // !important to override monaco inline styles
+        display: none !important;
+      }
+    }
+
+    .diffOverviewRuler.original {
+      // !important to override monaco inline styles
+      display: none !important;
+    }
+  }
+
   .monaco-diff-editor.vs {
     .editor.modified {
       box-shadow: none;
@@ -557,16 +604,21 @@
   }
 }
 
-.multi-file-addition,
-.multi-file-addition-solid {
+.ide-file-addition,
+.ide-file-addition-solid {
   color: $green-500;
 }
 
-.multi-file-modified,
-.multi-file-modified-solid {
+.ide-file-modified,
+.ide-file-modified-solid {
   color: $orange-500;
 }
 
+.ide-file-deletion,
+.ide-file-deletion-solid {
+  color: $red-500;
+}
+
 .multi-file-commit-list-collapsed {
   display: flex;
   flex-direction: column;
@@ -781,18 +833,21 @@
   }
 }
 
-.dragHandle {
+.drag-handle {
   position: absolute;
   top: 0;
   bottom: 0;
-  width: 1px;
-  background-color: $white-dark;
+  width: 4px;
 
-  &.dragright {
+  &:hover {
+    background-color: $white-normal;
+  }
+
+  &.drag-right {
     right: 0;
   }
 
-  &.dragleft {
+  &.drag-left {
     left: 0;
   }
 }
@@ -1014,6 +1069,10 @@
   .ide-new-btn {
     margin-left: auto;
   }
+
+  button {
+    color: $gl-text-color;
+  }
 }
 
 .ide-sidebar-branch-title {

app/assets/stylesheets/pages/builds.scss

@@ -199,6 +199,7 @@
 
   .block {
     width: 100%;
+    word-break: break-word;
 
     &:last-child {
       border-bottom: 1px solid $border-gray-normal;

app/controllers/projects/commits_controller.rb

@@ -4,13 +4,17 @@ class Projects::CommitsController < Projects::ApplicationController
   include ExtractsPath
   include RendersCommits
 
-  before_action :whitelist_query_limiting
+  before_action :whitelist_query_limiting, except: :commits_root
   before_action :require_non_empty_project
-  before_action :assign_ref_vars
+  before_action :assign_ref_vars, except: :commits_root
   before_action :authorize_download_code!
-  before_action :set_commits
+  before_action :set_commits, except: :commits_root
   before_action :set_request_format, only: :show
 
+  def commits_root
+    redirect_to project_commits_path(@project, @project.default_branch)
+  end
+
   def show
     @merge_request = MergeRequestsFinder.new(current_user, project_id: @project.id).execute.opened
       .find_by(source_project: @project, source_branch: @ref, target_branch: @repository.root_ref)

app/graphql/gitlab_schema.rb

@@ -7,5 +7,5 @@ class GitlabSchema < GraphQL::Schema
   query(Types::QueryType)
 
   default_max_page_size 100
-  # mutation(Types::MutationType)
+  mutation(Types::MutationType)
 end

app/graphql/mutations/base_mutation.rb

+# frozen_string_literal: true
+
+module Mutations
+  class BaseMutation < GraphQL::Schema::RelayClassicMutation
+    field :errors, [GraphQL::STRING_TYPE],
+          null: false,
+          description: "Reasons why the mutation failed."
+
+    def current_user
+      context[:current_user]
+    end
+  end
+end

app/graphql/mutations/concerns/mutations/resolves_project.rb

+module Mutations
+  module ResolvesProject
+    extend ActiveSupport::Concern
+
+    def resolve_project(full_path:)
+      resolver.resolve(full_path: full_path)
+    end
+
+    def resolver
+      Resolvers::ProjectResolver.new(object: nil, context: context)
+    end
+  end
+end

app/graphql/mutations/merge_requests/base.rb

+module Mutations
+  module MergeRequests
+    class Base < BaseMutation
+      include Gitlab::Graphql::Authorize::AuthorizeResource
+      include Mutations::ResolvesProject
+
+      argument :project_path, GraphQL::ID_TYPE,
+               required: true,
+               description: "The project the merge request to mutate is in"
+
+      argument :iid, GraphQL::ID_TYPE,
+               required: true,
+               description: "The iid of the merge request to mutate"
+
+      field :merge_request,
+            Types::MergeRequestType,
+            null: true,
+            description: "The merge request after mutation"
+
+      authorize :update_merge_request
+
+      private
+
+      def find_object(project_path:, iid:)
+        project = resolve_project(full_path: project_path)
+        resolver = Resolvers::MergeRequestResolver.new(object: project, context: context)
+
+        resolver.resolve(iid: iid)
+      end
+    end
+  end
+end

app/graphql/mutations/merge_requests/set_wip.rb

+# frozen_string_literal: true
+
+module Mutations
+  module MergeRequests
+    class SetWip < Base
+      graphql_name 'MergeRequestSetWip'
+
+      argument :wip,
+               GraphQL::BOOLEAN_TYPE,
+               required: true,
+               description: <<~DESC
+                            Whether or not to set the merge request as a WIP.
+                            DESC
+
+      def resolve(project_path:, iid:, wip: nil)
+        merge_request = authorized_find!(project_path: project_path, iid: iid)
+        project = merge_request.project
+
+        ::MergeRequests::UpdateService.new(project, current_user, wip_event: wip_event(merge_request, wip))
+          .execute(merge_request)
+
+        {
+          merge_request: merge_request,
+          errors: merge_request.errors.full_messages
+        }
+      end
+
+      private
+
+      def wip_event(merge_request, wip)
+        wip ? 'wip' : 'unwip'
+      end
+    end
+  end
+end

app/graphql/types/mutation_type.rb

+# frozen_string_literal: true
+
 module Types
   class MutationType < BaseObject
+    include Gitlab::Graphql::MountMutation
+
     graphql_name "Mutation"
 
-    # TODO: Add Mutations as fields
+    mount_mutation Mutations::MergeRequests::SetWip
   end
 end

app/helpers/environments_helper.rb

@@ -11,6 +11,10 @@ module EnvironmentsHelper
     {
       "settings-path" => edit_project_service_path(project, 'prometheus'),
       "clusters-path" => project_clusters_path(project),
+<<<<<<< HEAD
+=======
+      "current-environment-name": environment.name,
+>>>>>>> upstream/master
       "documentation-path" => help_page_path('administration/monitoring/prometheus/index.md'),
       "empty-getting-started-svg-path" => image_path('illustrations/monitoring/getting_started.svg'),
       "empty-loading-svg-path" => image_path('illustrations/monitoring/loading.svg'),

app/views/ide/index.html.haml

 - @body_class = 'ide'
 - page_title 'IDE'
 
+- content_for :page_specific_javascripts do
+  = stylesheet_link_tag 'page_bundles/ide'
+
 #ide.ide-loading{ data: {"empty-state-svg-path" => image_path('illustrations/multi_file_editor_empty.svg'),
   "no-changes-state-svg-path" => image_path('illustrations/multi-editor_no_changes_empty.svg'),
   "committed-state-svg-path" => image_path('illustrations/multi-editor_all_changes_committed_empty.svg'),

app/views/layouts/_head.html.haml

@@ -3,6 +3,11 @@
 - site_name = "GitLab"
 %head{ prefix: "og: http://ogp.me/ns#" }
   %meta{ charset: "utf-8" }
+
+  - if Feature.enabled?('asset_host_prefetch') && ActionController::Base.asset_host
+    %link{ rel: 'dns-prefetch', href: ActionController::Base.asset_host }
+    %link{ rel: 'preconnnect', href: ActionController::Base.asset_host, crossorigin: '' }
+
   %meta{ 'http-equiv' => 'X-UA-Compatible', content: 'IE=edge' }
 
   -# Open Graph - http://ogp.me/

changelogs/unreleased/31576-redirect-commits-to-root-if-no-ref.yml

+---
+title: Redirect commits to root if no ref is provided (31576)
+merge_request: 20738
+author: Kia Mei Somabes
+type: added

changelogs/unreleased/48055-web-ide-resize-handles.yml

+---
+title: Increase width of Web IDE sidebar resize handles
+merge_request: 20818
+author:
+type: fixed

changelogs/unreleased/48636-new-mr-card-styles.yml

+---
+title: Fix new MR card styles
+merge_request: 20822
+author:
+type: fixed

changelogs/unreleased/49107-prefetching-of-assets-and-cdn-domain.yml

+---
+title: DNS prefetching if asset_host for CDN hosting is set
+merge_request: 20781
+author:
+type: performance

changelogs/unreleased/bvl-graphql-wip-mutation.yml

+---
+title: Add the first mutations for merge requests to GraphQL
+merge_request: 20443
+author:
+type: added

changelogs/unreleased/full-list-of-vulnerabilities-5239.yml

+---
+title: Removes "show all" on reports and adds an actionButtons slot
+merge_request: 20855
+author:
+type: changed

changelogs/unreleased/ide-delete-entries.yml

+---
+title: Enabled deletion of files in the Web IDE
+merge_request:
+author:
+type: added

changelogs/unreleased/ide-edit-json-files.yml

+---
+title: Fixed IDE not opening JSON files
+merge_request: 20798
+author:
+type: fixed

changelogs/unreleased/sh-bump-haml-5-0-4.yml

+---
+title: Bump haml gem to 5.0.4
+merge_request: 20847
+author:
+type: performance

changelogs/unreleased/wrap-job-name-on-jobs-sidebar.yml

+---
+title: Wrap job name on pipeline job sidebar
+merge_request: 20804
+author: George Tsiolis
+type: changed

config/application.rb

@@ -48,7 +48,8 @@ module Gitlab
                                      #{config.root}/app/services/concerns
                                      #{config.root}/app/serializers/concerns
                                      #{config.root}/app/finders/concerns
-                                     #{config.root}/app/graphql/resolvers/concerns])
+                                     #{config.root}/app/graphql/resolvers/concerns
+                                     #{config.root}/app/graphql/mutations/concerns])
 
     config.generators.templates.push("#{config.root}/generator_templates")
 
@@ -146,6 +147,7 @@ module Gitlab
     config.assets.precompile << "notify.css"
     config.assets.precompile << "mailers/*.css"
     config.assets.precompile << "xterm/xterm.css"
+    config.assets.precompile << "page_bundles/ide.css"
     config.assets.precompile << "performance_bar.css"
     config.assets.precompile << "lib/ace.js"
     config.assets.precompile << "test.css"

config/routes/repository.rb

@@ -90,6 +90,7 @@ scope format: false do
     get '/raw/*id', to: 'raw#show', as: :raw
     get '/blame/*id', to: 'blame#show', as: :blame
 
+    get '/commits', to: 'commits#commits_root', as: :commits_root
     get '/commits/*id/signatures', to: 'commits#signatures', as: :signatures
     get '/commits/*id', to: 'commits#show', as: :commits
 

danger/database/Dangerfile

@@ -41,8 +41,8 @@ end
 
 all_files = git.added_files + git.modified_files
 
-non_geo_db_schema_updated = !git.modified_files.grep(%r{\Adb/schema\.rb/}).empty?
-geo_db_schema_updated = !git.modified_files.grep(%r{\Aee/db/geo/schema\.rb/}).empty?
+non_geo_db_schema_updated = !git.modified_files.grep(%r{\Adb/schema\.rb}).empty?
+geo_db_schema_updated = !git.modified_files.grep(%r{\Aee/db/geo/schema\.rb}).empty?
 
 non_geo_migration_created = !git.added_files.grep(%r{\A(db/(post_)?migrate)/}).empty?
 geo_migration_created = !git.added_files.grep(%r{\Aee/db/geo/(post_)?migrate/}).empty?

danger/frozen_string/Dangerfile

@@ -6,22 +6,21 @@ MAGIC_COMMENT = "# frozen_string_literal: true"
 def get_files_with_no_magic_comment(files)
   files.select do |file|
     file.end_with?(FILE_EXTENSION) &&
-      !File.open(file, &:gets).start_with?(MAGIC_COMMENT)
+      !File.open(file, &:gets)&.start_with?(MAGIC_COMMENT)
   end
 end
 
-files_to_check = git.added_files
-files_to_fix = get_files_with_no_magic_comment(files_to_check)
+files_to_fix = get_files_with_no_magic_comment(git.added_files)
 
 if files_to_fix.any?
   warn 'This merge request adds files that do not enforce frozen string literal. ' \
     'See https://gitlab.com/gitlab-org/gitlab-ce/issues/47424 for more information.'
 
   markdown(<<~MARKDOWN)
-## Enable Frozen String Literal
+    ## Enable Frozen String Literal
 
-The following files should have `#{MAGIC_COMMENT}` in the first line:
+    The following files should have `#{MAGIC_COMMENT}` on the first line:
 
-* #{files_to_fix.map { |path| "`#{path}`" }.join("\n* ")}
+    * #{files_to_fix.map { |path| "`#{path}`" }.join("\n* ")}
   MARKDOWN
 end

doc/development/api_graphql_styleguide.md

@@ -201,6 +201,148 @@ lot of dependant objects.
 
 To limit the amount of queries performed, we can use `BatchLoader`.
 
+## Mutations
+
+Mutations are used to change any stored values, or to trigger
+actions. In the same way a GET-request should not modify data, we
+cannot modify data in a regular GraphQL-query. We can however in a
+mutation.
+
+### Fields
+
+In the most common situations, a mutation would return 2 fields:
+
+- The resource being modified
+- A list of errors explaining why the action could not be
+  performed. If the mutation succeeded, this list would be empty.
+
+By inheriting any new mutations from `Mutations::BaseMutation` the
+`errors` field is automatically added. A `clientMutationId` field is
+also added, this can be used by the client to identify the result of a
+single mutation when multiple are performed within a single request.
+
+### Building Mutations
+
+Mutations live in `app/graphql/mutations` ideally grouped per
+resources they are mutating, similar to our services. They should
+inherit `Mutations::BaseMutation`. The fields defined on the mutation
+will be returned as the result of the mutation.
+
+Always provide a consistent GraphQL-name to the mutation, this name is
+used to generate the input types and the field the mutation is mounted
+on. The name should look like `<Resource being modified><Mutation
+class name>`, for example the `Mutations::MergeRequests::SetWip`
+mutation has GraphQL name `MergeRequestSetWip`.
+
+Arguments required by the mutation can be defined as arguments
+required for a field. These will be wrapped up in an input type for
+the mutation. For example, the `Mutations::MergeRequests::SetWip`
+with GraphQL-name `MergeRequestSetWip` defines these arguments:
+
+```ruby
+argument :project_path, GraphQL::ID_TYPE,
+         required: true,
+         description: "The project the merge request to mutate is in"
+
+argument :iid, GraphQL::ID_TYPE,
+         required: true,
+         description: "The iid of the merge request to mutate"
+
+argument :wip,
+         GraphQL::BOOLEAN_TYPE,
+         required: false,
+         description: <<~DESC
+                      Whether or not to set the merge request as a WIP.
+                      If not passed, the value will be toggled.
+                      DESC
+```
+
+This would automatically generate an input type called
+`MergeRequestSetWipInput` with the 3 arguments we specified and the
+`clientMutationId`.
+
+These arguments are then passed to the `resolve` method of a mutation
+as keyword arguments. From here, we can call the service that will
+modify the resource.
+
+The `resolve` method should then return a hash with the same field
+names as defined on the mutation and an `errors` array. For example,
+the `Mutations::MergeRequests::SetWip` defines a `merge_request`
+field:
+
+```ruby
+field :merge_request,
+      Types::MergeRequestType,
+      null: true,
+      description: "The merge request after mutation"
+```
+
+This means that the hash returned from `resolve` in this mutation
+should look like this:
+
+```ruby
+{
+  # The merge request modified, this will be wrapped in the type
+  # defined on the field
+  merge_request: merge_request,
+  # An array if strings if the mutation failed after authorization
+  errors: merge_request.errors.full_messages
+}
+```
+
+To make the mutation available it should be defined on the mutation
+type that lives in `graphql/types/mutation_types`. The
+`mount_mutation` helper method will define a field based on the
+GraphQL-name of the mutation:
+
+```ruby
+module Types
+  class MutationType < BaseObject
+    include Gitlab::Graphql::MountMutation
+
+    graphql_name "Mutation"
+
+    mount_mutation Mutations::MergeRequests::SetWip
+  end
+end
+```
+
+Will generate a field called `mergeRequestSetWip` that
+`Mutations::MergeRequests::SetWip` to be resolved.
+
+### Authorizing resources
+
+To authorize resources inside a mutation, we can include the
+`Gitlab::Graphql::Authorize::AuthorizeResource` concern in the
+mutation.
+
+This allows us to provide the required abilities on the mutation like
+this:
+
+```ruby
+module Mutations
+  module MergeRequests
+    class SetWip < Base
+      graphql_name 'MergeRequestSetWip'
+
+      authorize :update_merge_request
+    end
+  end
+end
+```
+
+We can then call `authorize!` in the `resolve` method, passing in the resource we
+want to validate the abilities for.
+
+Alternatively, we can add a `find_object` method that will load the
+object on the mutation. This would allow you to use the
+`authorized_find!` and `authorized_find!` helper methods.
+
+When a user is not allowed to perform the action, or an object is not
+found, we should raise a
+`Gitlab::Graphql::Errors::ResourceNotAvailable` error. Which will be
+correctly rendered to the clients.
+
 ## Testing
 
 _full stack_ tests for a graphql query or mutation live in
@@ -212,3 +354,35 @@ be used to test if the query renders valid results.
 Using the `GraphqlHelpers#all_graphql_fields_for`-helper, a query
 including all available fields can be constructed. This makes it easy
 to add a test rendering all possible fields for a query.
+
+To test GraphQL mutation requests, `GraphqlHelpers` provides 2
+helpers: `graphql_mutation` which takes the name of the mutation, and
+a hash with the input for the mutation. This will return a struct with
+a mutation query, and prepared variables.
+
+This struct can then be passed to the `post_graphql_mutation` helper,
+that will post the request with the correct params, like a GraphQL
+client would do.
+
+To access the response of a mutation, the `graphql_mutation_response`
+helper is available.
+
+Using these helpers, we can build specs like this:
+
+```ruby
+let(:mutation) do
+  graphql_mutation(
+    :merge_request_set_wip,
+    project_path: 'gitlab-org/gitlab-ce',
+    iid: '1',
+    wip: true
+  )
+end
+
+it 'returns a successfull response' do
+   post_graphql_mutation(mutation, current_user: user)
+
+   expect(response).to have_gitlab_http_status(:success)
+   expect(graphql_mutation_response(:merge_request_set_wip)['errors']).to be_empty
+end
+```

lib/gitlab/graphql/authorize.rb

@@ -10,7 +10,14 @@ module Gitlab
       end
 
       def required_permissions
-        @required_permissions ||= []
+        # If the `#authorize` call is used on multiple classes, we add the
+        # permissions specified on a subclass, to the ones that were specified
+        # on it's superclass.
+        @required_permissions ||= if self.respond_to?(:superclass) && superclass.respond_to?(:required_permissions)
+                                    superclass.required_permissions.dup
+                                  else
+                                    []
+                                  end
       end
 
       def authorize(*permissions)

lib/gitlab/graphql/authorize/authorize_resource.rb

+module Gitlab
+  module Graphql
+    module Authorize
+      module AuthorizeResource
+        extend ActiveSupport::Concern
+
+        included do
+          extend Gitlab::Graphql::Authorize
+        end
+
+        def find_object(*args)
+          raise NotImplementedError, "Implement #find_object in #{self.class.name}"
+        end
+
+        def authorized_find(*args)
+          object = find_object(*args)
+
+          object if authorized?(object)
+        end
+
+        def authorized_find!(*args)
+          object = find_object(*args)
+          authorize!(object)
+
+          object
+        end
+
+        def authorize!(object)
+          unless authorized?(object)
+            raise Gitlab::Graphql::Errors::ResourceNotAvailable,
+                  "The resource that you are attempting to access does not exist or you don't have permission to perform this action"
+          end
+        end
+
+        def authorized?(object)
+          self.class.required_permissions.all? do |ability|
+            # The actions could be performed across multiple objects. In which
+            # case the current user is common, and we could benefit from the
+            # caching in `DeclarativePolicy`.
+            Ability.allowed?(current_user, ability, object, scope: :user)
+          end
+        end
+      end
+    end
+  end
+end

lib/gitlab/graphql/errors.rb

@@ -3,6 +3,7 @@ module Gitlab
     module Errors
       BaseError = Class.new(GraphQL::ExecutionError)
       ArgumentError = Class.new(BaseError)
+      ResourceNotAvailable = Class.new(BaseError)
     end
   end
 end

lib/gitlab/graphql/mount_mutation.rb

+# frozen_string_literal: true
+
+module Gitlab
+  module Graphql
+    module MountMutation
+      extend ActiveSupport::Concern
+
+      module ClassMethods
+        def mount_mutation(mutation_class)
+          # Using an underscored field name symbol will make `graphql-ruby`
+          # standardize the field name
+          field mutation_class.graphql_name.underscore.to_sym,
+                mutation: mutation_class
+        end
+      end
+    end
+  end
+end

lib/gitlab/prometheus/queries/query_additional_metrics.rb

@@ -2,8 +2,11 @@ module Gitlab
   module Prometheus
     module Queries
       module QueryAdditionalMetrics
+<<<<<<< HEAD
         prepend EE::Gitlab::Prometheus::Queries::QueryAdditionalMetrics
 
+=======
+>>>>>>> upstream/master
         def query_metrics(project, environment, query_context)
           matched_metrics(project).map(&query_group(query_context))
             .select(&method(:group_with_any_metrics))

locale/gitlab.pot

@@ -146,6 +146,11 @@ msgid_plural "%{storage_name}: %{failed_attempts} failed storage access attempts
 msgstr[0] ""
 msgstr[1] ""
 
+msgid "%{text} %{files}"
+msgid_plural "%{text} %{files} files"
+msgstr[0] ""
+msgstr[1] ""
+
 msgid "%{text} is available"
 msgstr ""
 
@@ -2297,6 +2302,9 @@ msgstr ""
 msgid "Delete list"
 msgstr ""
 
+msgid "Deleted"
+msgstr ""
+
 msgid "Deny"
 msgstr ""
 
@@ -6705,10 +6713,8 @@ msgstr ""
 msgid "Up to date"
 msgstr ""
 
-msgid "Update %{files}"
-msgid_plural "Update %{files} files"
-msgstr[0] ""
-msgstr[1] ""
+msgid "Update"
+msgstr ""
 
 msgid "Update your group name, description, avatar, and other general settings."
 msgstr ""
@@ -7237,6 +7243,7 @@ msgstr ""
 msgid "branch name"
 msgstr ""
 
+<<<<<<< HEAD
 msgid "by"
 msgstr ""
 
@@ -7447,6 +7454,8 @@ msgstr ""
 msgid "ciReport|on pipeline"
 msgstr ""
 
+=======
+>>>>>>> upstream/master
 msgid "command line instructions"
 msgstr ""
 

qa/qa/runtime/browser.rb

@@ -72,6 +72,7 @@ module QA
           Capybara::Selenium::Driver.new(
             app,
             browser: :chrome,
+            clear_local_storage: true,
             desired_capabilities: capabilities,
             options: options
           )

spec/controllers/projects/commits_controller_spec.rb

@@ -9,6 +9,18 @@ describe Projects::CommitsController do
     project.add_maintainer(user)
   end
 
+  describe "GET commits_root" do
+    context "no ref is provided" do
+      it 'should redirect to the default branch of the project' do
+        get(:commits_root,
+            namespace_id: project.namespace,
+            project_id: project)
+
+        expect(response).to redirect_to project_commits_path(project)
+      end
+    end
+  end
+
   describe "GET show" do
     render_views
 

spec/graphql/gitlab_schema_spec.rb

@@ -18,8 +18,6 @@ describe GitlabSchema do
   end
 
   it 'has the base mutation' do
-    pending('Adding an empty mutation breaks the documentation explorer')
-
     expect(described_class.mutation).to eq(::Types::MutationType.to_graphql)
   end
 

spec/graphql/mutations/concerns/mutations/resolves_project_spec.rb

+require 'spec_helper'
+
+describe Mutations::ResolvesProject do
+  let(:mutation_class) do
+    Class.new(Mutations::BaseMutation) do
+      include Mutations::ResolvesProject
+    end
+  end
+
+  let(:context) { double }
+  subject(:mutation) { mutation_class.new(object: nil, context: context) }
+
+  it 'uses the ProjectsResolver to resolve projects by path' do
+    project = create(:project)
+
+    expect(Resolvers::ProjectResolver).to receive(:new).with(object: nil, context: context).and_call_original
+    expect(mutation.resolve_project(full_path: project.full_path)).to eq(project)
+  end
+end

spec/graphql/mutations/merge_requests/set_wip_spec.rb

+require 'spec_helper'
+
+describe Mutations::MergeRequests::SetWip do
+  let(:merge_request) { create(:merge_request) }
+  let(:user) { create(:user) }
+  subject(:mutation) { described_class.new(object: nil, context: { current_user: user }) }
+
+  describe '#resolve' do
+    let(:wip) { true }
+    let(:mutated_merge_request) { subject[:merge_request] }
+    subject { mutation.resolve(project_path: merge_request.project.full_path, iid: merge_request.iid, wip: wip) }
+
+    it 'raises an error if the resource is not accessible to the user' do
+      expect { subject }.to raise_error(Gitlab::Graphql::Errors::ResourceNotAvailable)
+    end
+
+    context 'when the user can update the merge request' do
+      before do
+        merge_request.project.add_developer(user)
+      end
+
+      it 'returns the merge request as a wip' do
+        expect(mutated_merge_request).to eq(merge_request)
+        expect(mutated_merge_request).to be_work_in_progress
+        expect(subject[:errors]).to be_empty
+      end
+
+      it 'returns errors merge request could not be updated' do
+        # Make the merge request invalid
+        merge_request.allow_broken = true
+        merge_request.update!(source_project: nil)
+
+        expect(subject[:errors]).not_to be_empty
+      end
+
+      context 'when passing wip as false' do
+        let(:wip) { false }
+
+        it 'removes `wip` from the title' do
+          merge_request.update(title: "WIP: working on it")
+
+          expect(mutated_merge_request).not_to be_work_in_progress
+        end
+
+        it 'does not do anything if the title did not start with wip' do
+          expect(mutated_merge_request).not_to be_work_in_progress
+        end
+      end
+    end
+  end
+end

spec/graphql/types/mutation_type_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Types::MutationType do
+  it 'is expected to have the MergeRequestSetWip' do
+    expect(described_class).to have_graphql_mutation(Mutations::MergeRequests::SetWip)
+  end
+end

spec/javascripts/ide/components/changed_file_icon_spec.js

@@ -33,14 +33,14 @@ describe('IDE changed file icon', () => {
   });
 
   describe('changedIconClass', () => {
-    it('includes multi-file-modified when not a temp file', () => {
-      expect(vm.changedIconClass).toContain('multi-file-modified');
+    it('includes ide-file-modified when not a temp file', () => {
+      expect(vm.changedIconClass).toContain('ide-file-modified');
     });
 
-    it('includes multi-file-addition when a temp file', () => {
+    it('includes ide-file-addition when a temp file', () => {
       vm.file.tempFile = true;
 
-      expect(vm.changedIconClass).toContain('multi-file-addition');
+      expect(vm.changedIconClass).toContain('ide-file-addition');
     });
   });
 });

spec/javascripts/ide/components/commit_sidebar/list_item_spec.js

@@ -76,17 +76,29 @@ describe('Multi-file editor commit sidebar list item', () => {
 
         expect(vm.iconName).toBe('file-addition');
       });
+
+      it('returns deletion', () => {
+        f.deleted = true;
+
+        expect(vm.iconName).toBe('file-deletion');
+      });
     });
 
     describe('iconClass', () => {
       it('returns modified when not a tempFile', () => {
-        expect(vm.iconClass).toContain('multi-file-modified');
+        expect(vm.iconClass).toContain('ide-file-modified');
       });
 
       it('returns addition when not a tempFile', () => {
         f.tempFile = true;
 
-        expect(vm.iconClass).toContain('multi-file-addition');
+        expect(vm.iconClass).toContain('ide-file-addition');
+      });
+
+      it('returns deletion', () => {
+        f.deleted = true;
+
+        expect(vm.iconClass).toContain('ide-file-deletion');
       });
     });
   });

spec/javascripts/ide/components/new_dropdown/index_spec.js

@@ -14,6 +14,7 @@ describe('new dropdown component', () => {
       branch: 'master',
       path: '',
       mouseOver: false,
+      type: 'tree',
     });
 
     vm.$store.state.currentProjectId = 'abcproject';
@@ -67,4 +68,14 @@ describe('new dropdown component', () => {
       });
     });
   });
+
+  describe('delete entry', () => {
+    it('calls delete action', () => {
+      spyOn(vm, 'deleteEntry');
+
+      vm.$el.querySelectorAll('.dropdown-menu button')[3].click();
+
+      expect(vm.deleteEntry).toHaveBeenCalledWith('');
+    });
+  });
 });

spec/javascripts/ide/components/repo_editor_spec.js

 import Vue from 'vue';
 import MockAdapter from 'axios-mock-adapter';
+import '~/behaviors/markdown/render_gfm';
 import axios from '~/lib/utils/axios_utils';
 import store from '~/ide/stores';
 import repoEditor from '~/ide/components/repo_editor.vue';
@@ -25,6 +26,8 @@ describe('RepoEditor', () => {
     vm.$store.state.openFiles.push(f);
     Vue.set(vm.$store.state.entries, f.path, f);
 
+    spyOn(vm, 'getFileData').and.returnValue(Promise.resolve());
+
     vm.$mount();
 
     Vue.nextTick(() => setTimeout(done));

spec/javascripts/ide/components/repo_file_spec.js

@@ -91,25 +91,6 @@ describe('RepoFile', () => {
         done();
       });
     });
-
-    it('disables action dropdown', done => {
-      createComponent({
-        file: {
-          ...file('t4'),
-          type: 'tree',
-          branchId: 'master',
-          projectId: 'project',
-        },
-        level: 0,
-        disableActionDropdown: true,
-      });
-
-      setTimeout(() => {
-        expect(vm.$el.querySelector('.ide-new-btn')).toBeNull();
-
-        done();
-      });
-    });
   });
 
   describe('locked file', () => {

spec/javascripts/ide/components/repo_tab_spec.js

@@ -93,13 +93,13 @@ describe('RepoTab', () => {
 
     Vue.nextTick()
       .then(() => {
-        expect(vm.$el.querySelector('.multi-file-modified')).toBeNull();
+        expect(vm.$el.querySelector('.ide-file-modified')).toBeNull();
 
         vm.$el.dispatchEvent(new Event('mouseout'));
       })
       .then(Vue.nextTick)
       .then(() => {
-        expect(vm.$el.querySelector('.multi-file-modified')).not.toBeNull();
+        expect(vm.$el.querySelector('.ide-file-modified')).not.toBeNull();
 
         done();
       })

spec/javascripts/ide/stores/actions/file_spec.js

@@ -366,6 +366,23 @@ describe('IDE store file actions', () => {
       });
     });
 
+    describe('return JSON', () => {
+      beforeEach(() => {
+        mock.onGet(/(.*)/).replyOnce(200, JSON.stringify({ test: '123' }));
+      });
+
+      it('does not parse returned JSON', done => {
+        store
+          .dispatch('getRawFileData', { path: tmpFile.path })
+          .then(() => {
+            expect(tmpFile.raw).toEqual('{"test":"123"}');
+
+            done();
+          })
+          .catch(done.fail);
+      });
+    });
+
     describe('error', () => {
       beforeEach(() => {
         mock.onGet(/(.*)/).networkError();

spec/javascripts/ide/stores/actions_spec.js

@@ -7,6 +7,7 @@ import actions, {
   updateActivityBarView,
   updateTempFlagForEntry,
   setErrorMessage,
+  deleteEntry,
 } from '~/ide/stores/actions';
 import store from '~/ide/stores';
 import * as types from '~/ide/stores/mutation_types';
@@ -457,4 +458,19 @@ describe('Multi-file store actions', () => {
       );
     });
   });
+
+  describe('deleteEntry', () => {
+    it('commits entry deletion', done => {
+      store.state.entries.path = 'testing';
+
+      testAction(
+        deleteEntry,
+        'path',
+        store.state,
+        [{ type: types.DELETE_ENTRY, payload: 'path' }],
+        [{ type: 'burstUnusedSeal' }, { type: 'closeFile', payload: store.state.entries.path }],
+        done,
+      );
+    });
+  });
 });

spec/javascripts/ide/stores/modules/commit/getters_spec.js

@@ -123,6 +123,22 @@ describe('IDE commit module getters', () => {
           'Update test-file, index.js files',
         );
       });
+
+      it('returns commitMessage with deleted files', () => {
+        rootState[key].push(
+          {
+            path: 'test-file',
+            deleted: true,
+          },
+          {
+            path: 'index.js',
+          },
+        );
+
+        expect(getters.preBuiltCommitMessage(state, null, rootState)).toBe(
+          'Update index.js\nDeleted test-file',
+        );
+      });
     });
   });
 });

spec/javascripts/ide/stores/mutations/file_spec.js

@@ -94,6 +94,35 @@ describe('IDE store file mutations', () => {
 
       expect(localFile.raw).toBe('testing');
     });
+
+    it('adds raw data to open pending file', () => {
+      localState.openFiles.push({
+        ...localFile,
+        pending: true,
+      });
+
+      mutations.SET_FILE_RAW_DATA(localState, {
+        file: localFile,
+        raw: 'testing',
+      });
+
+      expect(localState.openFiles[0].raw).toBe('testing');
+    });
+
+    it('does not add raw data to open pending tempFile file', () => {
+      localState.openFiles.push({
+        ...localFile,
+        pending: true,
+        tempFile: true,
+      });
+
+      mutations.SET_FILE_RAW_DATA(localState, {
+        file: localFile,
+        raw: 'testing',
+      });
+
+      expect(localState.openFiles[0].raw).not.toBe('testing');
+    });
   });
 
   describe('SET_FILE_BASE_RAW_DATA', () => {
@@ -205,6 +234,11 @@ describe('IDE store file mutations', () => {
     beforeEach(() => {
       localFile.content = 'test';
       localFile.changed = true;
+      localState.currentProjectId = 'gitlab-ce';
+      localState.currentBranchId = 'master';
+      localState.trees['gitlab-ce/master'] = {
+        tree: [],
+      };
     });
 
     it('resets content and changed', () => {
@@ -213,6 +247,36 @@ describe('IDE store file mutations', () => {
       expect(localFile.content).toBe('');
       expect(localFile.changed).toBeFalsy();
     });
+
+    it('adds to root tree if deleted', () => {
+      localFile.deleted = true;
+
+      mutations.DISCARD_FILE_CHANGES(localState, localFile.path);
+
+      expect(localState.trees['gitlab-ce/master'].tree).toEqual([
+        {
+          ...localFile,
+          deleted: false,
+        },
+      ]);
+    });
+
+    it('adds to parent tree if deleted', () => {
+      localFile.deleted = true;
+      localFile.parentPath = 'parentPath';
+      localState.entries.parentPath = {
+        tree: [],
+      };
+
+      mutations.DISCARD_FILE_CHANGES(localState, localFile.path);
+
+      expect(localState.entries.parentPath.tree).toEqual([
+        {
+          ...localFile,
+          deleted: false,
+        },
+      ]);
+    });
   });
 
   describe('ADD_FILE_TO_CHANGED', () => {

spec/javascripts/ide/stores/mutations_spec.js

@@ -156,4 +156,61 @@ describe('Multi-file store mutations', () => {
       expect(localState.errorMessage).toBe('error');
     });
   });
+
+  describe('DELETE_ENTRY', () => {
+    beforeEach(() => {
+      localState.currentProjectId = 'gitlab-ce';
+      localState.currentBranchId = 'master';
+      localState.trees['gitlab-ce/master'] = {
+        tree: [],
+      };
+    });
+
+    it('sets deleted flag', () => {
+      localState.entries.filePath = {
+        deleted: false,
+      };
+
+      mutations.DELETE_ENTRY(localState, 'filePath');
+
+      expect(localState.entries.filePath.deleted).toBe(true);
+    });
+
+    it('removes from root tree', () => {
+      localState.entries.filePath = {
+        path: 'filePath',
+        deleted: false,
+      };
+      localState.trees['gitlab-ce/master'].tree.push(localState.entries.filePath);
+
+      mutations.DELETE_ENTRY(localState, 'filePath');
+
+      expect(localState.trees['gitlab-ce/master'].tree).toEqual([]);
+    });
+
+    it('removes from parent tree', () => {
+      localState.entries.filePath = {
+        path: 'filePath',
+        deleted: false,
+        parentPath: 'parentPath',
+      };
+      localState.entries.parentPath = {
+        tree: [localState.entries.filePath],
+      };
+
+      mutations.DELETE_ENTRY(localState, 'filePath');
+
+      expect(localState.entries.parentPath.tree).toEqual([]);
+    });
+
+    it('adds to changedFiles', () => {
+      localState.entries.filePath = {
+        deleted: false,
+      };
+
+      mutations.DELETE_ENTRY(localState, 'filePath');
+
+      expect(localState.changedFiles).toEqual([localState.entries.filePath]);
+    });
+  });
 });

spec/javascripts/ide/stores/utils_spec.js

@@ -86,6 +86,11 @@ describe('Multi-file store utils', () => {
             base64: true,
             lastCommitSha: '123456789',
           },
+          {
+            ...file('deletedFile'),
+            path: 'deletedFile',
+            deleted: true,
+          },
         ],
         currentBranchId: 'master',
       };
@@ -115,6 +120,13 @@ describe('Multi-file store utils', () => {
             encoding: 'base64',
             last_commit_id: '123456789',
           },
+          {
+            action: 'delete',
+            file_path: 'deletedFile',
+            content: '',
+            encoding: 'text',
+            last_commit_id: undefined,
+          },
         ],
         start_branch: undefined,
       });
@@ -173,4 +185,65 @@ describe('Multi-file store utils', () => {
       });
     });
   });
+
+  describe('commitActionForFile', () => {
+    it('returns deleted for deleted file', () => {
+      expect(utils.commitActionForFile({ deleted: true })).toBe('delete');
+    });
+
+    it('returns create for tempFile', () => {
+      expect(utils.commitActionForFile({ tempFile: true })).toBe('create');
+    });
+
+    it('returns update by default', () => {
+      expect(utils.commitActionForFile({})).toBe('update');
+    });
+  });
+
+  describe('getCommitFiles', () => {
+    it('returns flattened list of files and folders', () => {
+      const files = [
+        {
+          path: 'a',
+          type: 'blob',
+          deleted: true,
+        },
+        {
+          path: 'b',
+          type: 'tree',
+          deleted: true,
+          tree: [
+            {
+              path: 'c',
+              type: 'blob',
+            },
+            {
+              path: 'd',
+              type: 'blob',
+            },
+          ],
+        },
+      ];
+
+      const flattendFiles = utils.getCommitFiles(files);
+
+      expect(flattendFiles).toEqual([
+        {
+          path: 'a',
+          type: 'blob',
+          deleted: true,
+        },
+        {
+          path: 'c',
+          type: 'blob',
+          deleted: true,
+        },
+        {
+          path: 'd',
+          type: 'blob',
+          deleted: true,
+        },
+      ]);
+    });
+  });
 });

spec/javascripts/vue_shared/components/panel_resizer_spec.js

@@ -29,7 +29,7 @@ describe('Panel Resizer component', () => {
     });
 
     expect(vm.$el.tagName).toEqual('DIV');
-    expect(vm.$el.getAttribute('class')).toBe('dragHandle dragleft');
+    expect(vm.$el.getAttribute('class')).toBe('drag-handle drag-left');
     expect(vm.$el.getAttribute('style')).toBe('cursor: ew-resize;');
   });
 
@@ -40,7 +40,7 @@ describe('Panel Resizer component', () => {
     });
 
     expect(vm.$el.tagName).toEqual('DIV');
-    expect(vm.$el.getAttribute('class')).toBe('dragHandle dragright');
+    expect(vm.$el.getAttribute('class')).toBe('drag-handle drag-right');
   });
 
   it('drag the resizer', () => {

spec/lib/gitlab/graphql/authorize/authorize_resource_spec.rb

+require 'spec_helper'
+
+describe Gitlab::Graphql::Authorize::AuthorizeResource do
+  let(:fake_class) do
+    Class.new do
+      include Gitlab::Graphql::Authorize::AuthorizeResource
+
+      attr_reader :user, :found_object
+
+      authorize :read_the_thing
+
+      def initialize(user, found_object)
+        @user, @found_object = user, found_object
+      end
+
+      def find_object
+        found_object
+      end
+
+      def current_user
+        user
+      end
+    end
+  end
+
+  let(:user) { build(:user) }
+  let(:project) { build(:project) }
+  subject(:loading_resource) { fake_class.new(user, project) }
+
+  context 'when the user is allowed to perform the action' do
+    before do
+      allow(Ability).to receive(:allowed?).with(user, :read_the_thing, project, scope: :user) do
+        true
+      end
+    end
+
+    describe '#authorized_find' do
+      it 'returns the object' do
+        expect(loading_resource.authorized_find).to eq(project)
+      end
+    end
+
+    describe '#authorized_find!' do
+      it 'returns the object' do
+        expect(loading_resource.authorized_find!).to eq(project)
+      end
+    end
+
+    describe '#authorize!' do
+      it 'does not raise an error' do
+        expect { loading_resource.authorize!(project) }.not_to raise_error
+      end
+    end
+
+    describe '#authorized?' do
+      it 'is true' do
+        expect(loading_resource.authorized?(project)).to be(true)
+      end
+    end
+  end
+
+  context 'when the user is not allowed to perform the action' do
+    before do
+      allow(Ability).to receive(:allowed?).with(user, :read_the_thing, project, scope: :user) do
+        false
+      end
+    end
+
+    describe '#authorized_find' do
+      it 'returns `nil`' do
+        expect(loading_resource.authorized_find).to be_nil
+      end
+    end
+
+    describe '#authorized_find!' do
+      it 'raises an error' do
+        expect { loading_resource.authorize!(project) }.to raise_error(Gitlab::Graphql::Errors::ResourceNotAvailable)
+      end
+    end
+
+    describe '#authorize!' do
+      it 'does not raise an error' do
+        expect { loading_resource.authorize!(project) }.to raise_error(Gitlab::Graphql::Errors::ResourceNotAvailable)
+      end
+    end
+
+    describe '#authorized?' do
+      it 'is false' do
+        expect(loading_resource.authorized?(project)).to be(false)
+      end
+    end
+  end
+
+  context 'when the class does not define #find_object' do
+    let(:fake_class) do
+      Class.new { include Gitlab::Graphql::Authorize::AuthorizeResource }
+    end
+
+    it 'raises a comprehensive error message' do
+      expect { fake_class.new.find_object }.to raise_error(/Implement #find_object in #{fake_class.name}/)
+    end
+  end
+end

spec/lib/gitlab/graphql/authorize_spec.rb

+require 'spec_helper'
+
+describe Gitlab::Graphql::Authorize do
+  describe '#authorize' do
+    it 'adds permissions from subclasses to those of superclasses when used on classes' do
+      base_class = Class.new do
+        extend Gitlab::Graphql::Authorize
+
+        authorize :base_authorization
+      end
+      sub_class = Class.new(base_class) do
+        authorize :sub_authorization
+      end
+
+      expect(base_class.required_permissions).to contain_exactly(:base_authorization)
+      expect(sub_class.required_permissions)
+        .to contain_exactly(:base_authorization, :sub_authorization)
+    end
+  end
+end

spec/requests/api/graphql/mutations/merge_requests/set_wip_spec.rb

+require 'spec_helper'
+
+describe 'Setting WIP status of a merge request' do
+  include GraphqlHelpers
+
+  let(:current_user) { create(:user) }
+  let(:merge_request) { create(:merge_request) }
+  let(:project) { merge_request.project }
+  let(:input) { { wip: true } }
+
+  let(:mutation) do
+    variables = {
+      project_path: project.full_path,
+      iid: merge_request.iid
+    }
+    graphql_mutation(:merge_request_set_wip, variables.merge(input))
+  end
+
+  def mutation_response
+    graphql_mutation_response(:merge_request_set_wip)
+  end
+
+  before do
+    project.add_developer(current_user)
+  end
+
+  it 'returns an error if the user is not allowed to update the merge request' do
+    post_graphql_mutation(mutation, current_user: create(:user))
+
+    expect(graphql_errors).not_to be_empty
+  end
+
+  it 'marks the merge request as WIP' do
+    post_graphql_mutation(mutation, current_user: current_user)
+
+    expect(response).to have_gitlab_http_status(:success)
+    expect(mutation_response['mergeRequest']['title']).to start_with('WIP:')
+  end
+
+  it 'does not do anything if the merge request was already marked `WIP`' do
+    merge_request.update!(title: 'wip: hello world')
+
+    post_graphql_mutation(mutation, current_user: current_user)
+
+    expect(response).to have_gitlab_http_status(:success)
+    expect(mutation_response['mergeRequest']['title']).to start_with('wip:')
+  end
+
+  context 'when passing WIP false as input' do
+    let(:input) { { wip: false } }
+
+    it 'does not do anything if the merge reqeust was not marked wip' do
+      post_graphql_mutation(mutation, current_user: current_user)
+
+      expect(response).to have_gitlab_http_status(:success)
+      expect(mutation_response['mergeRequest']['title']).not_to start_with(/wip\:/)
+    end
+
+    it 'unmarks the merge request as `WIP`' do
+      merge_request.update!(title: 'wip: hello world')
+
+      post_graphql_mutation(mutation, current_user: current_user)
+
+      expect(response).to have_gitlab_http_status(:success)
+      expect(mutation_response['mergeRequest']['title']).not_to start_with('/wip\:/')
+    end
+  end
+end

spec/support/helpers/graphql_helpers.rb

 module GraphqlHelpers
+  MutationDefinition = Struct.new(:query, :variables)
+
   # makes an underscored string look like a fieldname
   # "merge_request" => "mergeRequest"
   def self.fieldnamerize(underscored_field_name)
@@ -41,6 +43,37 @@ module GraphqlHelpers
     QUERY
   end
 
+  def graphql_mutation(name, input, fields = nil)
+    mutation_name = GraphqlHelpers.fieldnamerize(name)
+    input_variable_name = "$#{input_variable_name_for_mutation(name)}"
+    mutation_field = GitlabSchema.mutation.fields[mutation_name]
+    fields ||= all_graphql_fields_for(mutation_field.type)
+
+    query = <<~MUTATION
+      mutation(#{input_variable_name}: #{mutation_field.arguments['input'].type}) {
+        #{mutation_name}(input: #{input_variable_name}) {
+          #{fields}
+        }
+      }
+    MUTATION
+    variables = variables_for_mutation(name, input)
+
+    MutationDefinition.new(query, variables)
+  end
+
+  def variables_for_mutation(name, input)
+    graphql_input = input.map { |name, value| [GraphqlHelpers.fieldnamerize(name), value] }.to_h
+    { input_variable_name_for_mutation(name) => graphql_input }.to_json
+  end
+
+  def input_variable_name_for_mutation(mutation_name)
+    mutation_name = GraphqlHelpers.fieldnamerize(mutation_name)
+    mutation_field = GitlabSchema.mutation.fields[mutation_name]
+    input_type = field_type(mutation_field.arguments['input'])
+
+    GraphqlHelpers.fieldnamerize(input_type)
+  end
+
   def query_graphql_field(name, attributes = {}, fields = nil)
     fields ||= all_graphql_fields_for(name.classify)
     attributes = attributes_to_graphql(attributes)
@@ -73,8 +106,12 @@ module GraphqlHelpers
     end.join(", ")
   end
 
-  def post_graphql(query, current_user: nil)
-    post api('/', current_user, version: 'graphql'), query: query
+  def post_graphql(query, current_user: nil, variables: nil)
+    post api('/', current_user, version: 'graphql'), query: query, variables: variables
+  end
+
+  def post_graphql_mutation(mutation, current_user: nil)
+    post_graphql(mutation.query, current_user: current_user, variables: mutation.variables)
   end
 
   def graphql_data
@@ -82,7 +119,11 @@ module GraphqlHelpers
   end
 
   def graphql_errors
-    json_response['data']
+    json_response['errors']
+  end
+
+  def graphql_mutation_response(mutation_name)
+    graphql_data[GraphqlHelpers.fieldnamerize(mutation_name)]
   end
 
   def nested_fields?(field)
@@ -102,10 +143,14 @@ module GraphqlHelpers
   end
 
   def field_type(field)
-    if field.type.respond_to?(:of_type)
-      field.type.of_type
-    else
-      field.type
-    end
+    field_type = field.type
+
+    # The type could be nested. For example `[GraphQL::STRING_TYPE]`:
+    # - List
+    # - String!
+    # - String
+    field_type = field_type.of_type  while field_type.respond_to?(:of_type)
+
+    field_type
   end
 end

spec/support/matchers/graphql_matchers.rb

@@ -34,6 +34,15 @@ RSpec::Matchers.define :have_graphql_field do |field_name|
   end
 end
 
+RSpec::Matchers.define :have_graphql_mutation do |mutation_class|
+  match do |mutation_type|
+    field = mutation_type.fields[GraphqlHelpers.fieldnamerize(mutation_class.graphql_name)]
+
+    expect(field).to be_present
+    expect(field.resolver).to eq(mutation_class)
+  end
+end
+
 RSpec::Matchers.define :have_graphql_arguments do |*expected|
   include GraphqlHelpers
 

spec/support/shared_examples/requests/graphql_shared_examples.rb

@@ -5,7 +5,7 @@ shared_examples 'a working graphql query' do
 
   it 'returns a successful response', :aggregate_failures do
     expect(response).to have_gitlab_http_status(:success)
-    expect(graphql_errors['errors']).to be_nil
+    expect(graphql_errors).to be_nil
     expect(json_response.keys).to include('data')
   end
 end

spec/views/layouts/_head.html.haml_spec.rb

@@ -29,6 +29,39 @@ describe 'layouts/_head' do
     expect(rendered).to match(%{content="foo" http-equiv="refresh"})
   end
 
+  context 'when an asset_host is set and feature is activated in the config it will' do
+    let(:asset_host) { 'http://assets' }
+
+    before do
+      stub_feature_flags(asset_host_prefetch: true)
+      allow(ActionController::Base).to receive(:asset_host).and_return(asset_host)
+    end
+
+    it 'add a link dns-prefetch tag' do
+      render
+      expect(rendered).to match('<link href="http://assets" rel="dns-prefetch">')
+    end
+
+    it 'add a link preconnect tag' do
+      render
+      expect(rendered).to match('<link crossorigin="" href="http://assets" rel="preconnnect">')
+    end
+  end
+
+  context 'when an asset_host is set and feature is not activated in the config it will' do
+    let(:asset_host) { 'http://assets' }
+
+    before do
+      stub_feature_flags(asset_host_prefetch: false)
+      allow(ActionController::Base).to receive(:asset_host).and_return(asset_host)
+    end
+
+    it 'not add a link dns-prefetch tag' do
+      render
+      expect(rendered).not_to match('<link href="http://assets" rel="dns-prefetch">')
+    end
+  end
+
   def stub_helper_with_safe_string(method)
     allow_any_instance_of(PageLayoutHelper).to receive(method)
       .and_return(%q{foo" http-equiv="refresh}.html_safe)