Merge branch 'master' into bootstrap4

57 files changed, 841 insertions, 225 deletions

diff --git a/app/assets/javascripts/ide/components/file_finder/index.vue b/app/assets/javascripts/ide/components/file_finder/index.vue
new file mode 100644
index 00000000000..ea2b13a8b21
--- /dev/null
+++ b/app/assets/javascripts/ide/components/file_finder/index.vue
@@ -0,0 +1,245 @@
+<script>
+import { mapActions, mapGetters, mapState } from 'vuex';
+import fuzzaldrinPlus from 'fuzzaldrin-plus';
+import VirtualList from 'vue-virtual-scroll-list';
+import Item from './item.vue';
+import router from '../../ide_router';
+import {
+  MAX_FILE_FINDER_RESULTS,
+  FILE_FINDER_ROW_HEIGHT,
+  FILE_FINDER_EMPTY_ROW_HEIGHT,
+} from '../../constants';
+import {
+  UP_KEY_CODE,
+  DOWN_KEY_CODE,
+  ENTER_KEY_CODE,
+  ESC_KEY_CODE,
+} from '../../../lib/utils/keycodes';
+
+export default {
+  components: {
+    Item,
+    VirtualList,
+  },
+  data() {
+    return {
+      focusedIndex: 0,
+      searchText: '',
+      mouseOver: false,
+      cancelMouseOver: false,
+    };
+  },
+  computed: {
+    ...mapGetters(['allBlobs']),
+    ...mapState(['fileFindVisible', 'loading']),
+    filteredBlobs() {
+      const searchText = this.searchText.trim();
+
+      if (searchText === '') {
+        return this.allBlobs.slice(0, MAX_FILE_FINDER_RESULTS);
+      }
+
+      return fuzzaldrinPlus
+        .filter(this.allBlobs, searchText, {
+          key: 'path',
+          maxResults: MAX_FILE_FINDER_RESULTS,
+        })
+        .sort((a, b) => b.lastOpenedAt - a.lastOpenedAt);
+    },
+    filteredBlobsLength() {
+      return this.filteredBlobs.length;
+    },
+    listShowCount() {
+      return this.filteredBlobsLength ? Math.min(this.filteredBlobsLength, 5) : 1;
+    },
+    listHeight() {
+      return this.filteredBlobsLength ? FILE_FINDER_ROW_HEIGHT : FILE_FINDER_EMPTY_ROW_HEIGHT;
+    },
+    showClearInputButton() {
+      return this.searchText.trim() !== '';
+    },
+  },
+  watch: {
+    fileFindVisible() {
+      this.$nextTick(() => {
+        if (!this.fileFindVisible) {
+          this.searchText = '';
+        } else {
+          this.focusedIndex = 0;
+
+          if (this.$refs.searchInput) {
+            this.$refs.searchInput.focus();
+          }
+        }
+      });
+    },
+    searchText() {
+      this.focusedIndex = 0;
+    },
+    focusedIndex() {
+      if (!this.mouseOver) {
+        this.$nextTick(() => {
+          const el = this.$refs.virtualScrollList.$el;
+          const scrollTop = this.focusedIndex * FILE_FINDER_ROW_HEIGHT;
+          const bottom = this.listShowCount * FILE_FINDER_ROW_HEIGHT;
+
+          if (this.focusedIndex === 0) {
+            // if index is the first index, scroll straight to start
+            el.scrollTop = 0;
+          } else if (this.focusedIndex === this.filteredBlobsLength - 1) {
+            // if index is the last index, scroll to the end
+            el.scrollTop = this.filteredBlobsLength * FILE_FINDER_ROW_HEIGHT;
+          } else if (scrollTop >= bottom + el.scrollTop) {
+            // if element is off the bottom of the scroll list, scroll down one item
+            el.scrollTop = scrollTop - bottom + FILE_FINDER_ROW_HEIGHT;
+          } else if (scrollTop < el.scrollTop) {
+            // if element is off the top of the scroll list, scroll up one item
+            el.scrollTop = scrollTop;
+          }
+        });
+      }
+    },
+  },
+  methods: {
+    ...mapActions(['toggleFileFinder']),
+    clearSearchInput() {
+      this.searchText = '';
+
+      this.$nextTick(() => {
+        this.$refs.searchInput.focus();
+      });
+    },
+    onKeydown(e) {
+      switch (e.keyCode) {
+        case UP_KEY_CODE:
+          e.preventDefault();
+          this.mouseOver = false;
+          this.cancelMouseOver = true;
+          if (this.focusedIndex > 0) {
+            this.focusedIndex -= 1;
+          } else {
+            this.focusedIndex = this.filteredBlobsLength - 1;
+          }
+          break;
+        case DOWN_KEY_CODE:
+          e.preventDefault();
+          this.mouseOver = false;
+          this.cancelMouseOver = true;
+          if (this.focusedIndex < this.filteredBlobsLength - 1) {
+            this.focusedIndex += 1;
+          } else {
+            this.focusedIndex = 0;
+          }
+          break;
+        default:
+          break;
+      }
+    },
+    onKeyup(e) {
+      switch (e.keyCode) {
+        case ENTER_KEY_CODE:
+          this.openFile(this.filteredBlobs[this.focusedIndex]);
+          break;
+        case ESC_KEY_CODE:
+          this.toggleFileFinder(false);
+          break;
+        default:
+          break;
+      }
+    },
+    openFile(file) {
+      this.toggleFileFinder(false);
+      router.push(`/project${file.url}`);
+    },
+    onMouseOver(index) {
+      if (!this.cancelMouseOver) {
+        this.mouseOver = true;
+        this.focusedIndex = index;
+      }
+    },
+    onMouseMove(index) {
+      this.cancelMouseOver = false;
+      this.onMouseOver(index);
+    },
+  },
+};
+</script>
+
+<template>
+  <div
+    class="ide-file-finder-overlay"
+    @mousedown.self="toggleFileFinder(false)"
+  >
+    <div
+      class="dropdown-menu diff-file-changes ide-file-finder show"
+    >
+      <div class="dropdown-input">
+        <input
+          type="search"
+          class="dropdown-input-field"
+          :placeholder="__('Search files')"
+          autocomplete="off"
+          v-model="searchText"
+          ref="searchInput"
+          @keydown="onKeydown($event)"
+          @keyup="onKeyup($event)"
+        />
+        <i
+          aria-hidden="true"
+          class="fa fa-search dropdown-input-search"
+          :class="{
+            hidden: showClearInputButton
+          }"
+        ></i>
+        <i
+          role="button"
+          :aria-label="__('Clear search input')"
+          class="fa fa-times dropdown-input-clear"
+          :class="{
+            show: showClearInputButton
+          }"
+          @click="clearSearchInput"
+        ></i>
+      </div>
+      <div>
+        <virtual-list
+          :size="listHeight"
+          :remain="listShowCount"
+          wtag="ul"
+          ref="virtualScrollList"
+        >
+          <template v-if="filteredBlobsLength">
+            <li
+              v-for="(file, index) in filteredBlobs"
+              :key="file.key"
+            >
+              <item
+                class="disable-hover"
+                :file="file"
+                :search-text="searchText"
+                :focused="index === focusedIndex"
+                :index="index"
+                @click="openFile"
+                @mouseover="onMouseOver"
+                @mousemove="onMouseMove"
+              />
+            </li>
+          </template>
+          <li
+            v-else
+            class="dropdown-menu-empty-item"
+          >
+            <div class="append-right-default prepend-left-default prepend-top-8 append-bottom-8">
+              <template v-if="loading">
+                {{ __('Loading...') }}
+              </template>
+              <template v-else>
+                {{ __('No files found.') }}
+              </template>
+            </div>
+          </li>
+        </virtual-list>
+      </div>
+    </div>
+  </div>
+</template>
diff --git a/app/assets/javascripts/ide/components/file_finder/item.vue b/app/assets/javascripts/ide/components/file_finder/item.vue
new file mode 100644
index 00000000000..d4427420207
--- /dev/null
+++ b/app/assets/javascripts/ide/components/file_finder/item.vue
@@ -0,0 +1,113 @@
+<script>
+import fuzzaldrinPlus from 'fuzzaldrin-plus';
+import FileIcon from '../../../vue_shared/components/file_icon.vue';
+import ChangedFileIcon from '../changed_file_icon.vue';
+
+const MAX_PATH_LENGTH = 60;
+
+export default {
+  components: {
+    ChangedFileIcon,
+    FileIcon,
+  },
+  props: {
+    file: {
+      type: Object,
+      required: true,
+    },
+    focused: {
+      type: Boolean,
+      required: true,
+    },
+    searchText: {
+      type: String,
+      required: true,
+    },
+    index: {
+      type: Number,
+      required: true,
+    },
+  },
+  computed: {
+    pathWithEllipsis() {
+      const path = this.file.path;
+
+      return path.length < MAX_PATH_LENGTH
+        ? path
+        : `...${path.substr(path.length - MAX_PATH_LENGTH)}`;
+    },
+    nameSearchTextOccurences() {
+      return fuzzaldrinPlus.match(this.file.name, this.searchText);
+    },
+    pathSearchTextOccurences() {
+      return fuzzaldrinPlus.match(this.pathWithEllipsis, this.searchText);
+    },
+  },
+  methods: {
+    clickRow() {
+      this.$emit('click', this.file);
+    },
+    mouseOverRow() {
+      this.$emit('mouseover', this.index);
+    },
+    mouseMove() {
+      this.$emit('mousemove', this.index);
+    },
+  },
+};
+</script>
+
+<template>
+  <button
+    type="button"
+    class="diff-changed-file"
+    :class="{
+      'is-focused': focused,
+    }"
+    @click.prevent="clickRow"
+    @mouseover="mouseOverRow"
+    @mousemove="mouseMove"
+  >
+    <file-icon
+      :file-name="file.name"
+      :size="16"
+      css-classes="diff-file-changed-icon append-right-8"
+    />
+    <span class="diff-changed-file-content append-right-8">
+      <strong
+        class="diff-changed-file-name"
+      >
+        <span
+          v-for="(char, index) in file.name.split('')"
+          :key="index + char"
+          :class="{
+            highlighted: nameSearchTextOccurences.indexOf(index) >= 0,
+          }"
+          v-text="char"
+        >
+        </span>
+      </strong>
+      <span
+        class="diff-changed-file-path prepend-top-5"
+      >
+        <span
+          v-for="(char, index) in pathWithEllipsis.split('')"
+          :key="index + char"
+          :class="{
+            highlighted: pathSearchTextOccurences.indexOf(index) >= 0,
+          }"
+          v-text="char"
+        >
+        </span>
+      </span>
+    </span>
+    <span
+      v-if="file.changed || file.tempFile"
+      class="diff-changed-stats"
+    >
+      <changed-file-icon
+        :file="file"
+      />
+    </span>
+  </button>
+</template>
diff --git a/app/assets/javascripts/ide/components/ide.vue b/app/assets/javascripts/ide/components/ide.vue
index 5e96d3976ea..c63c130500e 100644
--- a/app/assets/javascripts/ide/components/ide.vue
+++ b/app/assets/javascripts/ide/components/ide.vue
@@ -1,55 +1,91 @@
 <script>
-import { mapState, mapGetters } from 'vuex';
-import ideSidebar from './ide_side_bar.vue';
-import ideContextbar from './ide_context_bar.vue';
-import repoTabs from './repo_tabs.vue';
-import ideStatusBar from './ide_status_bar.vue';
-import repoEditor from './repo_editor.vue';
+  import { mapActions, mapState, mapGetters } from 'vuex';
+  import Mousetrap from 'mousetrap';
+  import ideSidebar from './ide_side_bar.vue';
+  import ideContextbar from './ide_context_bar.vue';
+  import repoTabs from './repo_tabs.vue';
+  import ideStatusBar from './ide_status_bar.vue';
+  import repoEditor from './repo_editor.vue';
+  import FindFile from './file_finder/index.vue';
 
-export default {
-  components: {
-    ideSidebar,
-    ideContextbar,
-    repoTabs,
-    ideStatusBar,
-    repoEditor,
-  },
-  props: {
-    emptyStateSvgPath: {
-      type: String,
-      required: true,
+  const originalStopCallback = Mousetrap.stopCallback;
+
+  export default {
+    components: {
+      ideSidebar,
+      ideContextbar,
+      repoTabs,
+      ideStatusBar,
+      repoEditor,
+      FindFile,
     },
-    noChangesStateSvgPath: {
-      type: String,
-      required: true,
+    props: {
+      emptyStateSvgPath: {
+        type: String,
+        required: true,
+      },
+      noChangesStateSvgPath: {
+        type: String,
+        required: true,
+      },
+      committedStateSvgPath: {
+        type: String,
+        required: true,
+      },
     },
-    committedStateSvgPath: {
-      type: String,
-      required: true,
+    computed: {
+      ...mapState([
+        'changedFiles',
+        'openFiles',
+        'viewer',
+        'currentMergeRequestId',
+        'fileFindVisible',
+      ]),
+      ...mapGetters(['activeFile', 'hasChanges']),
     },
-  },
-  computed: {
-    ...mapState(['changedFiles', 'openFiles', 'viewer', 'currentMergeRequestId']),
-    ...mapGetters(['activeFile', 'hasChanges']),
-  },
-  mounted() {
-    const returnValue = 'Are you sure you want to lose unsaved changes?';
-    window.onbeforeunload = e => {
-      if (!this.changedFiles.length) return undefined;
+    mounted() {
+      const returnValue = 'Are you sure you want to lose unsaved changes?';
+      window.onbeforeunload = e => {
+        if (!this.changedFiles.length) return undefined;
+
+        Object.assign(e, {
+          returnValue,
+        });
+        return returnValue;
+      };
 
-      Object.assign(e, {
-        returnValue,
+      Mousetrap.bind(['t', 'command+p', 'ctrl+p'], e => {
+        if (e.preventDefault) {
+          e.preventDefault();
+        }
+
+        this.toggleFileFinder(!this.fileFindVisible);
       });
-      return returnValue;
-    };
-  },
-};
+
+      Mousetrap.stopCallback = (e, el, combo) => this.mousetrapStopCallback(e, el, combo);
+    },
+    methods: {
+      ...mapActions(['toggleFileFinder']),
+      mousetrapStopCallback(e, el, combo) {
+        if (combo === 't' && el.classList.contains('dropdown-input-field')) {
+          return true;
+        } else if (combo === 'command+p' || combo === 'ctrl+p') {
+          return false;
+        }
+
+        return originalStopCallback(e, el, combo);
+      },
+    },
+  };
 </script>
 
 <template>
   <div
     class="ide-view"
   >
+    <find-file
+      v-show="fileFindVisible"
+    />
     <ide-sidebar />
     <div
       class="multi-file-edit-pane"
diff --git a/app/assets/javascripts/ide/constants.js b/app/assets/javascripts/ide/constants.js
index b60d042e0be..b06da9f95d1 100644
--- a/app/assets/javascripts/ide/constants.js
+++ b/app/assets/javascripts/ide/constants.js
@@ -1,3 +1,8 @@
 // Fuzzy file finder
+export const MAX_FILE_FINDER_RESULTS = 40;
+export const FILE_FINDER_ROW_HEIGHT = 55;
+export const FILE_FINDER_EMPTY_ROW_HEIGHT = 33;
+
+// Commit message textarea
 export const MAX_TITLE_LENGTH = 50;
 export const MAX_BODY_LENGTH = 72;
diff --git a/app/assets/javascripts/ide/lib/editor.js b/app/assets/javascripts/ide/lib/editor.js
index 2d3ee7d4f48..b65d9c68a0b 100644
--- a/app/assets/javascripts/ide/lib/editor.js
+++ b/app/assets/javascripts/ide/lib/editor.js
@@ -1,10 +1,12 @@
 import _ from 'underscore';
+import store from '../stores';
 import DecorationsController from './decorations/controller';
 import DirtyDiffController from './diff/controller';
 import Disposable from './common/disposable';
 import ModelManager from './common/model_manager';
 import editorOptions, { defaultEditorOptions } from './editor_options';
 import gitlabTheme from './themes/gl_theme';
+import keymap from './keymap.json';
 
 export const clearDomElement = el => {
   if (!el || !el.firstChild) return;
@@ -53,6 +55,8 @@ export default class Editor {
         )),
       );
 
+      this.addCommands();
+
       window.addEventListener('resize', this.debouncedUpdate, false);
     }
   }
@@ -73,6 +77,8 @@ export default class Editor {
         })),
       );
 
+      this.addCommands();
+
       window.addEventListener('resize', this.debouncedUpdate, false);
     }
   }
@@ -189,4 +195,31 @@ export default class Editor {
   static renderSideBySide(domElement) {
     return domElement.offsetWidth >= 700;
   }
+
+  addCommands() {
+    const getKeyCode = key => {
+      const monacoKeyMod = key.indexOf('KEY_') === 0;
+
+      return monacoKeyMod ? this.monaco.KeyCode[key] : this.monaco.KeyMod[key];
+    };
+
+    keymap.forEach(command => {
+      const keybindings = command.bindings.map(binding => {
+        const keys = binding.split('+');
+
+        // eslint-disable-next-line no-bitwise
+        return keys.length > 1 ? getKeyCode(keys[0]) | getKeyCode(keys[1]) : getKeyCode(keys[0]);
+      });
+
+      this.instance.addAction({
+        id: command.id,
+        label: command.label,
+        keybindings,
+        run() {
+          store.dispatch(command.action.name, command.action.params);
+          return null;
+        },
+      });
+    });
+  }
 }
diff --git a/app/assets/javascripts/ide/lib/keymap.json b/app/assets/javascripts/ide/lib/keymap.json
new file mode 100644
index 00000000000..131abfebbed
--- /dev/null
+++ b/app/assets/javascripts/ide/lib/keymap.json
@@ -0,0 +1,11 @@
+[
+  {
+    "id": "file-finder",
+    "label": "File finder",
+    "bindings": ["CtrlCmd+KEY_P"],
+    "action": {
+      "name": "toggleFileFinder",
+      "params": true
+    }
+  }
+]
diff --git a/app/assets/javascripts/ide/stores/actions.js b/app/assets/javascripts/ide/stores/actions.js
index cecb4d215ba..cbe43f5f7f2 100644
--- a/app/assets/javascripts/ide/stores/actions.js
+++ b/app/assets/javascripts/ide/stores/actions.js
@@ -137,7 +137,13 @@ export const updateDelayViewerUpdated = ({ commit }, delay) => {
   commit(types.UPDATE_DELAY_VIEWER_CHANGE, delay);
 };
 
+export const toggleFileFinder = ({ commit }, fileFindVisible) =>
+  commit(types.TOGGLE_FILE_FINDER, fileFindVisible);
+
 export * from './actions/tree';
 export * from './actions/file';
 export * from './actions/project';
 export * from './actions/merge_request';
+
+// prevent babel-plugin-rewire from generating an invalid default during karma tests
+export default () => {};
diff --git a/app/assets/javascripts/ide/stores/getters.js b/app/assets/javascripts/ide/stores/getters.js
index 8518d2f6f06..ec1ea155aee 100644
--- a/app/assets/javascripts/ide/stores/getters.js
+++ b/app/assets/javascripts/ide/stores/getters.js
@@ -42,4 +42,20 @@ export const collapseButtonTooltip = state =>
 
 export const hasMergeRequest = state => !!state.currentMergeRequestId;
 
+export const allBlobs = state =>
+  Object.keys(state.entries)
+    .reduce((acc, key) => {
+      const entry = state.entries[key];
+
+      if (entry.type === 'blob') {
+        acc.push(entry);
+      }
+
+      return acc;
+    }, [])
+    .sort((a, b) => b.lastOpenedAt - a.lastOpenedAt);
+
 export const getStagedFile = state => path => state.stagedFiles.find(f => f.path === path);
+
+// prevent babel-plugin-rewire from generating an invalid default during karma tests
+export default () => {};
diff --git a/app/assets/javascripts/ide/stores/modules/commit/actions.js b/app/assets/javascripts/ide/stores/modules/commit/actions.js
index b26512e213a..119debaf5f3 100644
--- a/app/assets/javascripts/ide/stores/modules/commit/actions.js
+++ b/app/assets/javascripts/ide/stores/modules/commit/actions.js
@@ -185,3 +185,6 @@ export const commitChanges = ({ commit, state, getters, dispatch, rootState }) =
       commit(types.UPDATE_LOADING, false);
     });
 };
+
+// prevent babel-plugin-rewire from generating an invalid default during karma tests
+export default () => {};
diff --git a/app/assets/javascripts/ide/stores/modules/commit/getters.js b/app/assets/javascripts/ide/stores/modules/commit/getters.js
index 9c3905a0b0d..d01060201f2 100644
--- a/app/assets/javascripts/ide/stores/modules/commit/getters.js
+++ b/app/assets/javascripts/ide/stores/modules/commit/getters.js
@@ -27,3 +27,6 @@ export const branchName = (state, getters, rootState) => {
 
   return rootState.currentBranchId;
 };
+
+// prevent babel-plugin-rewire from generating an invalid default during karma tests
+export default () => {};
diff --git a/app/assets/javascripts/ide/stores/mutation_types.js b/app/assets/javascripts/ide/stores/mutation_types.js
index f5f95b755c8..c7f08449d03 100644
--- a/app/assets/javascripts/ide/stores/mutation_types.js
+++ b/app/assets/javascripts/ide/stores/mutation_types.js
@@ -58,3 +58,5 @@ export const UNSTAGE_CHANGE = 'UNSTAGE_CHANGE';
 export const UPDATE_FILE_AFTER_COMMIT = 'UPDATE_FILE_AFTER_COMMIT';
 export const ADD_PENDING_TAB = 'ADD_PENDING_TAB';
 export const REMOVE_PENDING_TAB = 'REMOVE_PENDING_TAB';
+
+export const TOGGLE_FILE_FINDER = 'TOGGLE_FILE_FINDER';
diff --git a/app/assets/javascripts/ide/stores/mutations.js b/app/assets/javascripts/ide/stores/mutations.js
index fbe342f9126..2a6c136aeed 100644
--- a/app/assets/javascripts/ide/stores/mutations.js
+++ b/app/assets/javascripts/ide/stores/mutations.js
@@ -100,6 +100,11 @@ export default {
       delayViewerUpdated,
     });
   },
+  [types.TOGGLE_FILE_FINDER](state, fileFindVisible) {
+    Object.assign(state, {
+      fileFindVisible,
+    });
+  },
   [types.UPDATE_FILE_AFTER_COMMIT](state, { file, lastCommit }) {
     const changedFile = state.changedFiles.find(f => f.path === file.path);
 
diff --git a/app/assets/javascripts/ide/stores/mutations/file.js b/app/assets/javascripts/ide/stores/mutations/file.js
index dd7dcba8ac7..c3041c77199 100644
--- a/app/assets/javascripts/ide/stores/mutations/file.js
+++ b/app/assets/javascripts/ide/stores/mutations/file.js
@@ -4,6 +4,7 @@ export default {
   [types.SET_FILE_ACTIVE](state, { path, active }) {
     Object.assign(state.entries[path], {
       active,
+      lastOpenedAt: new Date().getTime(),
     });
 
     if (active && !state.entries[path].pending) {
diff --git a/app/assets/javascripts/ide/stores/state.js b/app/assets/javascripts/ide/stores/state.js
index 34975ac3144..3470bb9aec0 100644
--- a/app/assets/javascripts/ide/stores/state.js
+++ b/app/assets/javascripts/ide/stores/state.js
@@ -18,4 +18,5 @@ export default () => ({
   entries: {},
   viewer: 'editor',
   delayViewerUpdated: false,
+  fileFindVisible: false,
 });
diff --git a/app/assets/javascripts/ide/stores/utils.js b/app/assets/javascripts/ide/stores/utils.js
index 8a222da14c0..86612d845e0 100644
--- a/app/assets/javascripts/ide/stores/utils.js
+++ b/app/assets/javascripts/ide/stores/utils.js
@@ -42,6 +42,7 @@ export const dataStructure = () => ({
   viewMode: 'edit',
   previewMode: null,
   size: 0,
+  lastOpenedAt: 0,
 });
 
 export const decorateData = entity => {
diff --git a/app/assets/javascripts/jobs/components/sidebar_details_block.vue b/app/assets/javascripts/jobs/components/sidebar_details_block.vue
index f238a334d41..50a35b96c59 100644
--- a/app/assets/javascripts/jobs/components/sidebar_details_block.vue
+++ b/app/assets/javascripts/jobs/components/sidebar_details_block.vue
@@ -45,7 +45,7 @@ export default {
       return timeIntervalInWords(this.job.queued);
     },
     runnerId() {
-      return `#${this.job.runner.id}`;
+      return `${this.job.runner.description} (#${this.job.runner.id})`;
     },
     retryButtonClass() {
       let className = 'js-retry-button pull-right btn btn-retry d-none d-md-block d-lg-block d-xl-block';
diff --git a/app/assets/javascripts/lib/utils/keycodes.js b/app/assets/javascripts/lib/utils/keycodes.js
new file mode 100644
index 00000000000..5e0f9b612a2
--- /dev/null
+++ b/app/assets/javascripts/lib/utils/keycodes.js
@@ -0,0 +1,4 @@
+export const UP_KEY_CODE = 38;
+export const DOWN_KEY_CODE = 40;
+export const ENTER_KEY_CODE = 13;
+export const ESC_KEY_CODE = 27;
diff --git a/app/assets/javascripts/notes/stores/actions.js b/app/assets/javascripts/notes/stores/actions.js
index 244a6980b5a..98ce070288e 100644
--- a/app/assets/javascripts/notes/stores/actions.js
+++ b/app/assets/javascripts/notes/stores/actions.js
@@ -315,3 +315,6 @@ export const scrollToNoteIfNeeded = (context, el) => {
     scrollToElement(el);
   }
 };
+
+// prevent babel-plugin-rewire from generating an invalid default during karma tests
+export default () => {};
diff --git a/app/assets/javascripts/notes/stores/getters.js b/app/assets/javascripts/notes/stores/getters.js
index f89591a54d6..787be6f4c99 100644
--- a/app/assets/javascripts/notes/stores/getters.js
+++ b/app/assets/javascripts/notes/stores/getters.js
@@ -68,3 +68,6 @@ export const resolvedDiscussionCount = (state, getters) => {
 
   return Object.keys(resolvedMap).length;
 };
+
+// prevent babel-plugin-rewire from generating an invalid default during karma tests
+export default () => {};
diff --git a/app/assets/javascripts/registry/stores/actions.js b/app/assets/javascripts/registry/stores/actions.js
index 795b39bb3dc..593a43c7cc1 100644
--- a/app/assets/javascripts/registry/stores/actions.js
+++ b/app/assets/javascripts/registry/stores/actions.js
@@ -35,3 +35,6 @@ export const deleteRegistry = ({ commit }, image) => Vue.http.delete(image.destr
 
 export const setMainEndpoint = ({ commit }, data) => commit(types.SET_MAIN_ENDPOINT, data);
 export const toggleLoading = ({ commit }) => commit(types.TOGGLE_MAIN_LOADING);
+
+// prevent babel-plugin-rewire from generating an invalid default during karma tests
+export default () => {};
diff --git a/app/assets/javascripts/registry/stores/getters.js b/app/assets/javascripts/registry/stores/getters.js
index 588f479c492..f4923512578 100644
--- a/app/assets/javascripts/registry/stores/getters.js
+++ b/app/assets/javascripts/registry/stores/getters.js
@@ -1,2 +1,5 @@
 export const isLoading = state => state.isLoading;
 export const repos = state => state.repos;
+
+// prevent babel-plugin-rewire from generating an invalid default during karma tests
+export default () => {};
diff --git a/app/assets/stylesheets/framework/common.scss b/app/assets/stylesheets/framework/common.scss
index e4d6421f0a7..915b0c3be8e 100644
--- a/app/assets/stylesheets/framework/common.scss
+++ b/app/assets/stylesheets/framework/common.scss
@@ -472,6 +472,7 @@ img.emoji {
 .append-right-20 { margin-right: 20px; }
 .append-bottom-0 { margin-bottom: 0; }
 .append-bottom-5 { margin-bottom: 5px; }
+.append-bottom-8 { margin-bottom: $grid-size; }
 .append-bottom-10 { margin-bottom: 10px; }
 .append-bottom-15 { margin-bottom: 15px; }
 .append-bottom-20 { margin-bottom: 20px; }
diff --git a/app/assets/stylesheets/framework/dropdowns.scss b/app/assets/stylesheets/framework/dropdowns.scss
index 1bf821e8098..1570b1f2eaa 100644
--- a/app/assets/stylesheets/framework/dropdowns.scss
+++ b/app/assets/stylesheets/framework/dropdowns.scss
@@ -43,7 +43,7 @@
     border-color: $gray-darkest;
   }
 
-  [data-toggle="dropdown"] {
+  [data-toggle='dropdown'] {
     outline: 0;
   }
 }
@@ -172,7 +172,11 @@
     color: $brand-danger;
   }
 
-  &:hover,
+  &.disable-hover {
+    text-decoration: none;
+  }
+
+  &:not(.disable-hover):hover,
   &:active,
   &:focus,
   &.is-focused {
@@ -502,17 +506,16 @@
       }
 
       &.is-indeterminate::before {
-        content: "\f068";
+        content: '\f068';
       }
 
       &.is-active::before {
-        content: "\f00c";
+        content: '\f00c';
       }
     }
   }
 }
 
-
 .dropdown-title {
   position: relative;
   padding: 2px 25px 10px;
@@ -718,7 +721,6 @@
   }
 }
 
-
 .dropdown-menu-due-date {
   .dropdown-content {
     max-height: 230px;
@@ -848,9 +850,13 @@ header.header-content .dropdown-menu.projects-dropdown-menu {
   }
 
   .projects-list-frequent-container,
-  .projects-list-search-container, {
+  .projects-list-search-container {
     padding: 8px 0;
     overflow-y: auto;
+
+    li.section-empty.section-failure {
+      color: $callout-danger-color;
+    }
   }
 
   .section-header,
@@ -861,13 +867,6 @@ header.header-content .dropdown-menu.projects-dropdown-menu {
     font-size: $gl-font-size;
   }
 
-  .projects-list-frequent-container,
-  .projects-list-search-container {
-    li.section-empty.section-failure {
-      color: $callout-danger-color;
-    }
-  }
-
   .search-input-container {
     position: relative;
     padding: 4px $gl-padding;
@@ -899,8 +898,7 @@ header.header-content .dropdown-menu.projects-dropdown-menu {
 }
 
 .projects-list-item-container {
-  .project-item-avatar-container
-  .project-item-metadata-container {
+  .project-item-avatar-container .project-item-metadata-container {
     float: left;
   }
 
diff --git a/app/assets/stylesheets/framework/mobile.scss b/app/assets/stylesheets/framework/mobile.scss
index b4fa1021797..6244fb86fea 100644
--- a/app/assets/stylesheets/framework/mobile.scss
+++ b/app/assets/stylesheets/framework/mobile.scss
@@ -40,10 +40,6 @@
   .project-home-panel {
     padding-left: 0 !important;
 
-    .project-avatar {
-      display: block;
-    }
-
     .project-repo-buttons,
     .git-clone-holder {
       display: none;
diff --git a/app/assets/stylesheets/framework/secondary_navigation_elements.scss b/app/assets/stylesheets/framework/secondary_navigation_elements.scss
index 52262609b91..75667da5fd8 100644
--- a/app/assets/stylesheets/framework/secondary_navigation_elements.scss
+++ b/app/assets/stylesheets/framework/secondary_navigation_elements.scss
@@ -241,8 +241,6 @@
 }
 
 .scrolling-tabs-container {
-  position: relative;
-
   .merge-request-tabs-container & {
     overflow: hidden;
   }
@@ -272,8 +270,6 @@
 }
 
 .inner-page-scroll-tabs {
-  position: relative;
-
   .fade-right {
     @include fade(left, $white-light);
     right: 0;
diff --git a/app/assets/stylesheets/pages/labels.scss b/app/assets/stylesheets/pages/labels.scss
index 883fb86e72c..e178371d21f 100644
--- a/app/assets/stylesheets/pages/labels.scss
+++ b/app/assets/stylesheets/pages/labels.scss
@@ -315,6 +315,10 @@
   display: inline-flex;
   vertical-align: top;
 
+  &:hover .color-label {
+    text-decoration: underline;
+  }
+
   .label {
     vertical-align: inherit;
     font-size: $label-font-size;
diff --git a/app/assets/stylesheets/pages/repo.scss b/app/assets/stylesheets/pages/repo.scss
index 578fae5ce01..f8d51c6a391 100644
--- a/app/assets/stylesheets/pages/repo.scss
+++ b/app/assets/stylesheets/pages/repo.scss
@@ -17,6 +17,7 @@
 }
 
 .ide-view {
+  position: relative;
   display: flex;
   height: calc(100vh - #{$header-height});
   margin-top: 0;
@@ -876,6 +877,26 @@
   font-weight: $gl-font-weight-bold;
 }
 
+.ide-file-finder-overlay {
+  position: absolute;
+  top: 0;
+  right: 0;
+  bottom: 0;
+  left: 0;
+  z-index: 100;
+}
+
+.ide-file-finder {
+  top: 10px;
+  left: 50%;
+  transform: translateX(-50%);
+
+  .highlighted {
+    color: $blue-500;
+    font-weight: $gl-font-weight-bold;
+  }
+}
+
 .ide-commit-message-field {
   height: 200px;
   background-color: $white-light;
diff --git a/app/controllers/concerns/authenticates_with_two_factor.rb b/app/controllers/concerns/authenticates_with_two_factor.rb
index 2fdf346ef44..69a053d4246 100644
--- a/app/controllers/concerns/authenticates_with_two_factor.rb
+++ b/app/controllers/concerns/authenticates_with_two_factor.rb
@@ -23,6 +23,9 @@ module AuthenticatesWithTwoFactor
   #
   # Returns nil
   def prompt_for_two_factor(user)
+    # Set @user for Devise views
+    @user = user # rubocop:disable Gitlab/ModuleWithInstanceVariables
+
     return locked_user_redirect(user) unless user.can?(:log_in)
 
     session[:otp_user_id] = user.id
diff --git a/app/controllers/concerns/issuable_collections.rb b/app/controllers/concerns/issuable_collections.rb
index 4114ca6bf7c..34228cf0b82 100644
--- a/app/controllers/concerns/issuable_collections.rb
+++ b/app/controllers/concerns/issuable_collections.rb
@@ -165,8 +165,8 @@ module IssuableCollections
                                   [:project, :author, :assignees, :labels, :milestone, project: :namespace]
                                 when 'MergeRequest'
                                   [
-                                    :source_project, :target_project, :author, :assignee, :labels, :milestone,
-                                    head_pipeline: :project, target_project: :namespace, latest_merge_request_diff: :merge_request_diff_commits
+                                    :target_project, :author, :assignee, :labels, :milestone,
+                                    source_project: :route, head_pipeline: :project, target_project: :namespace, latest_merge_request_diff: :merge_request_diff_commits
                                   ]
                                 end
   end
diff --git a/app/controllers/ldap/omniauth_callbacks_controller.rb b/app/controllers/ldap/omniauth_callbacks_controller.rb
new file mode 100644
index 00000000000..fb24edb8602
--- /dev/null
+++ b/app/controllers/ldap/omniauth_callbacks_controller.rb
@@ -0,0 +1,31 @@
+class Ldap::OmniauthCallbacksController < OmniauthCallbacksController
+  extend ::Gitlab::Utils::Override
+
+  def self.define_providers!
+    return unless Gitlab::Auth::LDAP::Config.enabled?
+
+    Gitlab::Auth::LDAP::Config.available_servers.each do |server|
+      alias_method server['provider_name'], :ldap
+    end
+  end
+
+  # We only find ourselves here
+  # if the authentication to LDAP was successful.
+  def ldap
+    sign_in_user_flow(Gitlab::Auth::LDAP::User)
+  end
+
+  define_providers!
+
+  override :set_remember_me
+  def set_remember_me(user)
+    user.remember_me = params[:remember_me] if user.persisted?
+  end
+
+  override :fail_login
+  def fail_login(user)
+    flash[:alert] = 'Access denied for your LDAP account.'
+
+    redirect_to new_user_session_path
+  end
+end
diff --git a/app/controllers/omniauth_callbacks_controller.rb b/app/controllers/omniauth_callbacks_controller.rb
index 5e6676ea513..9137bc92810 100644
--- a/app/controllers/omniauth_callbacks_controller.rb
+++ b/app/controllers/omniauth_callbacks_controller.rb
@@ -4,18 +4,12 @@ class OmniauthCallbacksController < Devise::OmniauthCallbacksController
 
   protect_from_forgery except: [:kerberos, :saml, :cas3]
 
-  Gitlab.config.omniauth.providers.each do |provider|
-    define_method provider['name'] do
-      handle_omniauth
-    end
+  def handle_omniauth
+    omniauth_flow(Gitlab::Auth::OAuth)
   end
 
-  if Gitlab::Auth::LDAP::Config.enabled?
-    Gitlab::Auth::LDAP::Config.available_servers.each do |server|
-      define_method server['provider_name'] do
-        ldap
-      end
-    end
+  Gitlab.config.omniauth.providers.each do |provider|
+    alias_method provider['name'], :handle_omniauth
   end
 
   # Extend the standard implementation to also increment
@@ -37,51 +31,12 @@ class OmniauthCallbacksController < Devise::OmniauthCallbacksController
     error ||= exception.error        if exception.respond_to?(:error)
     error ||= exception.message      if exception.respond_to?(:message)
     error ||= env["omniauth.error.type"].to_s
-    error.to_s.humanize if error
-  end
-
-  # We only find ourselves here
-  # if the authentication to LDAP was successful.
-  def ldap
-    ldap_user = Gitlab::Auth::LDAP::User.new(oauth)
-    ldap_user.save if ldap_user.changed? # will also save new users
-
-    @user = ldap_user.gl_user
-    @user.remember_me = params[:remember_me] if ldap_user.persisted?
 
-    # Do additional LDAP checks for the user filter and EE features
-    if ldap_user.allowed?
-      if @user.two_factor_enabled?
-        prompt_for_two_factor(@user)
-      else
-        log_audit_event(@user, with: oauth['provider'])
-        sign_in_and_redirect(@user)
-      end
-    else
-      fail_ldap_login
-    end
+    error.to_s.humanize if error
   end
 
   def saml
-    if current_user
-      log_audit_event(current_user, with: :saml)
-      # Update SAML identity if data has changed.
-      identity = current_user.identities.with_extern_uid(:saml, oauth['uid']).take
-      if identity.nil?
-        current_user.identities.create(extern_uid: oauth['uid'], provider: :saml)
-        redirect_to profile_account_path, notice: 'Authentication method updated'
-      else
-        redirect_to after_sign_in_path_for(current_user)
-      end
-    else
-      saml_user = Gitlab::Auth::Saml::User.new(oauth)
-      saml_user.save if saml_user.changed?
-      @user = saml_user.gl_user
-
-      continue_login_process
-    end
-  rescue Gitlab::Auth::OAuth::User::SignupDisabledError
-    handle_signup_error
+    omniauth_flow(Gitlab::Auth::Saml)
   end
 
   def omniauth_error
@@ -117,25 +72,36 @@ class OmniauthCallbacksController < Devise::OmniauthCallbacksController
 
   private
 
-  def handle_omniauth
+  def omniauth_flow(auth_module, identity_linker: nil)
     if current_user
-      # Add new authentication method
-      current_user.identities
-                  .with_extern_uid(oauth['provider'], oauth['uid'])
-                  .first_or_create(extern_uid: oauth['uid'])
       log_audit_event(current_user, with: oauth['provider'])
-      redirect_to profile_account_path, notice: 'Authentication method updated'
-    else
-      oauth_user = Gitlab::Auth::OAuth::User.new(oauth)
-      oauth_user.save
-      @user = oauth_user.gl_user
 
-      continue_login_process
+      identity_linker ||= auth_module::IdentityLinker.new(current_user, oauth)
+
+      identity_linker.link
+
+      if identity_linker.changed?
+        redirect_identity_linked
+      elsif identity_linker.error_message.present?
+        redirect_identity_link_failed(identity_linker.error_message)
+      else
+        redirect_identity_exists
+      end
+    else
+      sign_in_user_flow(auth_module::User)
     end
-  rescue Gitlab::Auth::OAuth::User::SigninDisabledForProviderError
-    handle_disabled_provider
-  rescue Gitlab::Auth::OAuth::User::SignupDisabledError
-    handle_signup_error
+  end
+
+  def redirect_identity_exists
+    redirect_to after_sign_in_path_for(current_user)
+  end
+
+  def redirect_identity_link_failed(error_message)
+    redirect_to profile_account_path, notice: "Authentication failed: #{error_message}"
+  end
+
+  def redirect_identity_linked
+    redirect_to profile_account_path, notice: 'Authentication method updated'
   end
 
   def handle_service_ticket(provider, ticket)
@@ -144,21 +110,27 @@ class OmniauthCallbacksController < Devise::OmniauthCallbacksController
     session[:service_tickets][provider] = ticket
   end
 
-  def continue_login_process
-    # Only allow properly saved users to login.
-    if @user.persisted? && @user.valid?
-      log_audit_event(@user, with: oauth['provider'])
+  def sign_in_user_flow(auth_user_class)
+    auth_user = auth_user_class.new(oauth)
+    user = auth_user.find_and_update!
+
+    if auth_user.valid_sign_in?
+      log_audit_event(user, with: oauth['provider'])
 
-      if @user.two_factor_enabled?
-        params[:remember_me] = '1' if remember_me?
-        prompt_for_two_factor(@user)
+      set_remember_me(user)
+
+      if user.two_factor_enabled?
+        prompt_for_two_factor(user)
       else
-        remember_me(@user) if remember_me?
-        sign_in_and_redirect(@user)
+        sign_in_and_redirect(user)
       end
     else
-      fail_login
+      fail_login(user)
     end
+  rescue Gitlab::Auth::OAuth::User::SigninDisabledForProviderError
+    handle_disabled_provider
+  rescue Gitlab::Auth::OAuth::User::SignupDisabledError
+    handle_signup_error
   end
 
   def handle_signup_error
@@ -178,18 +150,12 @@ class OmniauthCallbacksController < Devise::OmniauthCallbacksController
     @oauth ||= request.env['omniauth.auth']
   end
 
-  def fail_login
-    error_message = @user.errors.full_messages.to_sentence
+  def fail_login(user)
+    error_message = user.errors.full_messages.to_sentence
 
     return redirect_to omniauth_error_path(oauth['provider'], error: error_message)
   end
 
-  def fail_ldap_login
-    flash[:alert] = 'Access denied for your LDAP account.'
-
-    redirect_to new_user_session_path
-  end
-
   def fail_auth0_login
     flash[:alert] = 'Wrong extern UID provided. Make sure Auth0 is configured correctly.'
 
@@ -208,6 +174,16 @@ class OmniauthCallbacksController < Devise::OmniauthCallbacksController
       .for_authentication.security_event
   end
 
+  def set_remember_me(user)
+    return unless remember_me?
+
+    if user.two_factor_enabled?
+      params[:remember_me] = '1'
+    else
+      remember_me(user)
+    end
+  end
+
   def remember_me?
     request_params = request.env['omniauth.params']
     (request_params['remember_me'] == '1') if request_params.present?
diff --git a/app/helpers/gitlab_routing_helper.rb b/app/helpers/gitlab_routing_helper.rb
index 7f3c118c7ab..40073f714ee 100644
--- a/app/helpers/gitlab_routing_helper.rb
+++ b/app/helpers/gitlab_routing_helper.rb
@@ -81,6 +81,14 @@ module GitlabRoutingHelper
     end
   end
 
+  def edit_milestone_path(entity, *args)
+    if entity.parent.is_a?(Group)
+      edit_group_milestone_path(entity.parent, entity, *args)
+    else
+      edit_project_milestone_path(entity.parent, entity, *args)
+    end
+  end
+
   def toggle_subscription_path(entity, *args)
     if entity.is_a?(Issue)
       toggle_subscription_project_issue_path(entity.project, entity)
diff --git a/app/helpers/projects_helper.rb b/app/helpers/projects_helper.rb
index a64b2acdd77..801e624e1de 100644
--- a/app/helpers/projects_helper.rb
+++ b/app/helpers/projects_helper.rb
@@ -400,7 +400,8 @@ module ProjectsHelper
     exports_path = File.join(Settings.shared['path'], 'tmp/project_exports')
     filtered_message = message.strip.gsub(exports_path, "[REPO EXPORT PATH]")
 
-    filtered_message.gsub(project.repository_storage_path.chomp('/'), "[REPOS PATH]")
+    disk_path = Gitlab.config.repositories.storages[project.repository_storage].legacy_disk_path
+    filtered_message.gsub(disk_path.chomp('/'), "[REPOS PATH]")
   end
 
   def project_child_container_class(view_path)
diff --git a/app/models/ci/build.rb b/app/models/ci/build.rb
index b0c02cdeec7..9000ad860e9 100644
--- a/app/models/ci/build.rb
+++ b/app/models/ci/build.rb
@@ -27,6 +27,7 @@ module Ci
 
     has_one :metadata, class_name: 'Ci::BuildMetadata'
     delegate :timeout, to: :metadata, prefix: true, allow_nil: true
+    delegate :gitlab_deploy_token, to: :project
 
     ##
     # The "environment" field for builds is a String, and is the unexpanded name!
@@ -604,6 +605,7 @@ module Ci
           .append(key: 'CI_REGISTRY_USER', value: CI_REGISTRY_USER)
           .append(key: 'CI_REGISTRY_PASSWORD', value: token, public: false)
           .append(key: 'CI_REPOSITORY_URL', value: repo_url, public: false)
+          .concat(deploy_token_variables)
       end
     end
 
@@ -654,6 +656,15 @@ module Ci
       end
     end
 
+    def deploy_token_variables
+      Gitlab::Ci::Variables::Collection.new.tap do |variables|
+        break variables unless gitlab_deploy_token
+
+        variables.append(key: 'CI_DEPLOY_USER', value: gitlab_deploy_token.name)
+        variables.append(key: 'CI_DEPLOY_PASSWORD', value: gitlab_deploy_token.token, public: false)
+      end
+    end
+
     def environment_url
       options&.dig(:environment, :url) || persisted_environment&.external_url
     end
diff --git a/app/models/concerns/protected_ref.rb b/app/models/concerns/protected_ref.rb
index 454374121f3..94eef4ff7cd 100644
--- a/app/models/concerns/protected_ref.rb
+++ b/app/models/concerns/protected_ref.rb
@@ -31,7 +31,7 @@ module ProtectedRef
       end
     end
 
-    def protected_ref_accessible_to?(ref, user, action:, protected_refs: nil)
+    def protected_ref_accessible_to?(ref, user, project:, action:, protected_refs: nil)
       access_levels_for_ref(ref, action: action, protected_refs: protected_refs).any? do |access_level|
         access_level.check_access(user)
       end
diff --git a/app/models/concerns/storage/legacy_namespace.rb b/app/models/concerns/storage/legacy_namespace.rb
index f05e606995d..f66bdd529f1 100644
--- a/app/models/concerns/storage/legacy_namespace.rb
+++ b/app/models/concerns/storage/legacy_namespace.rb
@@ -45,25 +45,25 @@ module Storage
 
     # Hooks
 
-    # Save the storage paths before the projects are destroyed to use them on after destroy
+    # Save the storages before the projects are destroyed to use them on after destroy
     def prepare_for_destroy
-      old_repository_storage_paths
+      old_repository_storages
     end
 
     private
 
     def move_repositories
-      # Move the namespace directory in all storage paths used by member projects
-      repository_storage_paths.each do |repository_storage_path|
+      # Move the namespace directory in all storages used by member projects
+      repository_storages.each do |repository_storage|
         # Ensure old directory exists before moving it
-        gitlab_shell.add_namespace(repository_storage_path, full_path_was)
+        gitlab_shell.add_namespace(repository_storage, full_path_was)
 
         # Ensure new directory exists before moving it (if there's a parent)
-        gitlab_shell.add_namespace(repository_storage_path, parent.full_path) if parent
+        gitlab_shell.add_namespace(repository_storage, parent.full_path) if parent
 
-        unless gitlab_shell.mv_namespace(repository_storage_path, full_path_was, full_path)
+        unless gitlab_shell.mv_namespace(repository_storage, full_path_was, full_path)
 
-          Rails.logger.error "Exception moving path #{repository_storage_path} from #{full_path_was} to #{full_path}"
+          Rails.logger.error "Exception moving path #{repository_storage} from #{full_path_was} to #{full_path}"
 
           # if we cannot move namespace directory we should rollback
           # db changes in order to prevent out of sync between db and fs
@@ -72,33 +72,33 @@ module Storage
       end
     end
 
-    def old_repository_storage_paths
-      @old_repository_storage_paths ||= repository_storage_paths
+    def old_repository_storages
+      @old_repository_storage_paths ||= repository_storages
     end
 
-    def repository_storage_paths
+    def repository_storages
       # We need to get the storage paths for all the projects, even the ones that are
       # pending delete. Unscoping also get rids of the default order, which causes
       # problems with SELECT DISTINCT.
       Project.unscoped do
-        all_projects.select('distinct(repository_storage)').to_a.map(&:repository_storage_path)
+        all_projects.select('distinct(repository_storage)').to_a.map(&:repository_storage)
       end
     end
 
     def rm_dir
       # Remove the namespace directory in all storages paths used by member projects
-      old_repository_storage_paths.each do |repository_storage_path|
+      old_repository_storages.each do |repository_storage|
         # Move namespace directory into trash.
         # We will remove it later async
         new_path = "#{full_path}+#{id}+deleted"
 
-        if gitlab_shell.mv_namespace(repository_storage_path, full_path, new_path)
+        if gitlab_shell.mv_namespace(repository_storage, full_path, new_path)
           Gitlab::AppLogger.info %Q(Namespace directory "#{full_path}" moved to "#{new_path}")
 
           # Remove namespace directroy async with delay so
           # GitLab has time to remove all projects first
           run_after_commit do
-            GitlabShellWorker.perform_in(5.minutes, :rm_namespace, repository_storage_path, new_path)
+            GitlabShellWorker.perform_in(5.minutes, :rm_namespace, repository_storage, new_path)
           end
         end
       end
diff --git a/app/models/deploy_token.rb b/app/models/deploy_token.rb
index 979e9232fda..5082dc45368 100644
--- a/app/models/deploy_token.rb
+++ b/app/models/deploy_token.rb
@@ -4,6 +4,7 @@ class DeployToken < ActiveRecord::Base
   add_authentication_token_field :token
 
   AVAILABLE_SCOPES = %i(read_repository read_registry).freeze
+  GITLAB_DEPLOY_TOKEN_NAME = 'gitlab-deploy-token'.freeze
 
   default_value_for(:expires_at) { Forever.date }
 
@@ -17,6 +18,10 @@ class DeployToken < ActiveRecord::Base
 
   scope :active, -> { where("revoked = false AND expires_at >= NOW()") }
 
+  def self.gitlab_deploy_token
+    active.find_by(name: GITLAB_DEPLOY_TOKEN_NAME)
+  end
+
   def revoke!
     update!(revoked: true)
   end
diff --git a/app/models/merge_request_diff.rb b/app/models/merge_request_diff.rb
index c1c27ccf3e5..06aa67c600f 100644
--- a/app/models/merge_request_diff.rb
+++ b/app/models/merge_request_diff.rb
@@ -197,10 +197,6 @@ class MergeRequestDiff < ActiveRecord::Base
     CompareService.new(project, head_commit_sha).execute(project, sha, straight: true)
   end
 
-  def commits_count
-    super || merge_request_diff_commits.size
-  end
-
   private
 
   def create_merge_request_diff_files(diffs)
diff --git a/app/models/project.rb b/app/models/project.rb
index cec1e705aa8..d4e9e51c7be 100644
--- a/app/models/project.rb
+++ b/app/models/project.rb
@@ -68,6 +68,11 @@ class Project < ActiveRecord::Base
 
   after_save :update_project_statistics, if: :namespace_id_changed?
   after_create :create_project_feature, unless: :project_feature
+
+  after_create :create_ci_cd_settings,
+    unless: :ci_cd_settings,
+    if: proc { ProjectCiCdSetting.available? }
+
   after_create :set_last_activity_at
   after_create :set_last_repository_updated_at
   after_update :update_forks_visibility_level
@@ -231,6 +236,7 @@ class Project < ActiveRecord::Base
   has_many :custom_attributes, class_name: 'ProjectCustomAttribute'
 
   has_many :project_badges, class_name: 'ProjectBadge'
+  has_one :ci_cd_settings, class_name: 'ProjectCiCdSetting'
 
   accepts_nested_attributes_for :variables, allow_destroy: true
   accepts_nested_attributes_for :project_feature, update_only: true
@@ -512,10 +518,6 @@ class Project < ActiveRecord::Base
     repository.empty?
   end
 
-  def repository_storage_path
-    Gitlab.config.repositories.storages[repository_storage]&.legacy_disk_path
-  end
-
   def team
     @team ||= ProjectTeam.new(self)
   end
@@ -1041,13 +1043,6 @@ class Project < ActiveRecord::Base
     "#{web_url}.git"
   end
 
-  def user_can_push_to_empty_repo?(user)
-    return false unless empty_repo?
-    return false unless Ability.allowed?(user, :push_code, self)
-
-    !ProtectedBranch.default_branch_protected? || team.max_member_access(user.id) > Gitlab::Access::DEVELOPER
-  end
-
   def forked?
     return true if fork_network && fork_network.root_project != self
 
@@ -1106,7 +1101,7 @@ class Project < ActiveRecord::Base
   # Check if repository already exists on disk
   def check_repository_path_availability
     return true if skip_disk_validation
-    return false unless repository_storage_path
+    return false unless repository_storage
 
     expires_full_path_cache # we need to clear cache to validate renames correctly
 
@@ -1879,6 +1874,10 @@ class Project < ActiveRecord::Base
     []
   end
 
+  def gitlab_deploy_token
+    @gitlab_deploy_token ||= deploy_tokens.gitlab_deploy_token
+  end
+
   private
 
   def storage
@@ -1907,14 +1906,14 @@ class Project < ActiveRecord::Base
   def check_repository_absence!
     return if skip_disk_validation
 
-    if repository_storage_path.blank? || repository_with_same_path_already_exists?
+    if repository_storage.blank? || repository_with_same_path_already_exists?
       errors.add(:base, 'There is already a repository with that name on disk')
       throw :abort
     end
   end
 
   def repository_with_same_path_already_exists?
-    gitlab_shell.exists?(repository_storage_path, "#{disk_path}.git")
+    gitlab_shell.exists?(repository_storage, "#{disk_path}.git")
   end
 
   # set last_activity_at to the same as created_at
@@ -2004,10 +2003,11 @@ class Project < ActiveRecord::Base
 
   def fetch_branch_allows_maintainer_push?(user, branch_name)
     check_access = -> do
+      next false if empty_repo?
+
       merge_request = source_of_merge_requests.opened
                         .where(allow_maintainer_to_push: true)
                         .find_by(source_branch: branch_name)
-
       merge_request&.can_be_merged_by?(user)
     end
 
diff --git a/app/models/project_ci_cd_setting.rb b/app/models/project_ci_cd_setting.rb
new file mode 100644
index 00000000000..9f10a93148c
--- /dev/null
+++ b/app/models/project_ci_cd_setting.rb
@@ -0,0 +1,16 @@
+class ProjectCiCdSetting < ActiveRecord::Base
+  belongs_to :project
+
+  # The version of the schema that first introduced this model/table.
+  MINIMUM_SCHEMA_VERSION = 20180403035759
+
+  def self.available?
+    @available ||=
+      ActiveRecord::Migrator.current_version >= MINIMUM_SCHEMA_VERSION
+  end
+
+  def self.reset_column_information
+    @available = nil
+    super
+  end
+end
diff --git a/app/models/project_wiki.rb b/app/models/project_wiki.rb
index b7e38ceb502..f799a0b4227 100644
--- a/app/models/project_wiki.rb
+++ b/app/models/project_wiki.rb
@@ -21,7 +21,7 @@ class ProjectWiki
   end
 
   delegate :empty?, to: :pages
-  delegate :repository_storage_path, :hashed_storage?, to: :project
+  delegate :repository_storage, :hashed_storage?, to: :project
 
   def path
     @project.path + '.wiki'
diff --git a/app/models/protected_branch.rb b/app/models/protected_branch.rb
index 609780c5587..cb361a66591 100644
--- a/app/models/protected_branch.rb
+++ b/app/models/protected_branch.rb
@@ -4,6 +4,15 @@ class ProtectedBranch < ActiveRecord::Base
 
   protected_ref_access_levels :merge, :push
 
+  def self.protected_ref_accessible_to?(ref, user, project:, action:, protected_refs: nil)
+    # Masters, owners and admins are allowed to create the default branch
+    if default_branch_protected? && project.empty_repo?
+      return true if user.admin? || project.team.max_member_access(user.id) > Gitlab::Access::DEVELOPER
+    end
+
+    super
+  end
+
   # Check if branch name is marked as protected in the system
   def self.protected?(project, ref_name)
     return true if project.empty_repo? && default_branch_protected?
diff --git a/app/models/repository.rb b/app/models/repository.rb
index 5bdaa7f0720..6831305fb93 100644
--- a/app/models/repository.rb
+++ b/app/models/repository.rb
@@ -84,9 +84,14 @@ class Repository
 
   # Return absolute path to repository
   def path_to_repo
-    @path_to_repo ||= File.expand_path(
-      File.join(repository_storage_path, disk_path + '.git')
-    )
+    @path_to_repo ||=
+      begin
+        storage = Gitlab.config.repositories.storages[@project.repository_storage]
+
+        File.expand_path(
+          File.join(storage.legacy_disk_path, disk_path + '.git')
+        )
+      end
   end
 
   def inspect
@@ -915,10 +920,6 @@ class Repository
     raw_repository.fetch_ref(source_repository.raw_repository, source_ref: source_ref, target_ref: target_ref)
   end
 
-  def repository_storage_path
-    @project.repository_storage_path
-  end
-
   def rebase(user, merge_request)
     raw.rebase(user, merge_request.id, branch: merge_request.source_branch,
                                        branch_sha: merge_request.source_branch_sha,
diff --git a/app/models/storage/hashed_project.rb b/app/models/storage/hashed_project.rb
index fae1b64961a..26b4b78ac64 100644
--- a/app/models/storage/hashed_project.rb
+++ b/app/models/storage/hashed_project.rb
@@ -1,7 +1,7 @@
 module Storage
   class HashedProject
     attr_accessor :project
-    delegate :gitlab_shell, :repository_storage_path, to: :project
+    delegate :gitlab_shell, :repository_storage, to: :project
 
     ROOT_PATH_PREFIX = '@hashed'.freeze
 
@@ -24,7 +24,7 @@ module Storage
     end
 
     def ensure_storage_path_exists
-      gitlab_shell.add_namespace(repository_storage_path, base_dir)
+      gitlab_shell.add_namespace(repository_storage, base_dir)
     end
 
     def rename_repo
diff --git a/app/models/storage/legacy_project.rb b/app/models/storage/legacy_project.rb
index 9d9e5e1d352..27cb388c702 100644
--- a/app/models/storage/legacy_project.rb
+++ b/app/models/storage/legacy_project.rb
@@ -1,7 +1,7 @@
 module Storage
   class LegacyProject
     attr_accessor :project
-    delegate :namespace, :gitlab_shell, :repository_storage_path, to: :project
+    delegate :namespace, :gitlab_shell, :repository_storage, to: :project
 
     def initialize(project)
       @project = project
@@ -24,18 +24,18 @@ module Storage
     def ensure_storage_path_exists
       return unless namespace
 
-      gitlab_shell.add_namespace(repository_storage_path, base_dir)
+      gitlab_shell.add_namespace(repository_storage, base_dir)
     end
 
     def rename_repo
       new_full_path = project.build_full_path
 
-      if gitlab_shell.mv_repository(repository_storage_path, project.full_path_was, new_full_path)
+      if gitlab_shell.mv_repository(repository_storage, project.full_path_was, new_full_path)
         # If repository moved successfully we need to send update instructions to users.
         # However we cannot allow rollback since we moved repository
         # So we basically we mute exceptions in next actions
         begin
-          gitlab_shell.mv_repository(repository_storage_path, "#{project.full_path_was}.wiki", "#{new_full_path}.wiki")
+          gitlab_shell.mv_repository(repository_storage, "#{project.full_path_was}.wiki", "#{new_full_path}.wiki")
           return true
         rescue => e
           Rails.logger.error "Exception renaming #{project.full_path_was} -> #{new_full_path}: #{e}"
diff --git a/app/policies/group_policy.rb b/app/policies/group_policy.rb
index c9cb730c4e9..520710b757d 100644
--- a/app/policies/group_policy.rb
+++ b/app/policies/group_policy.rb
@@ -22,7 +22,7 @@ class GroupPolicy < BasePolicy
   condition(:can_change_parent_share_with_group_lock) { can?(:change_share_with_group_lock, @subject.parent) }
 
   condition(:has_projects) do
-    GroupProjectsFinder.new(group: @subject, current_user: @user).execute.any?
+    GroupProjectsFinder.new(group: @subject, current_user: @user, options: { include_subgroups: true }).execute.any?
   end
 
   with_options scope: :subject, score: 0
@@ -43,7 +43,11 @@ class GroupPolicy < BasePolicy
   end
 
   rule { admin }             .enable :read_group
-  rule { has_projects }      .enable :read_group
+
+  rule { has_projects }.policy do
+    enable :read_group
+    enable :read_label
+  end
 
   rule { has_access }.enable :read_namespace
 
diff --git a/app/presenters/project_presenter.rb b/app/presenters/project_presenter.rb
index 63ead5538cb..ad655a7b3f4 100644
--- a/app/presenters/project_presenter.rb
+++ b/app/presenters/project_presenter.rb
@@ -4,6 +4,7 @@ class ProjectPresenter < Gitlab::View::Presenter::Delegated
   include GitlabRoutingHelper
   include StorageHelper
   include TreeHelper
+  include ChecksCollaboration
   include Gitlab::Utils::StrongMemoize
 
   presents :project
@@ -170,9 +171,11 @@ class ProjectPresenter < Gitlab::View::Presenter::Delegated
   end
 
   def can_current_user_push_to_branch?(branch)
-    return false unless repository.branch_exists?(branch)
+    user_access(project).can_push_to_branch?(branch)
+  end
 
-    ::Gitlab::UserAccess.new(current_user, project: project).can_push_to_branch?(branch)
+  def can_current_user_push_to_default_branch?
+    can_current_user_push_to_branch?(default_branch)
   end
 
   def files_anchor_data
@@ -200,7 +203,7 @@ class ProjectPresenter < Gitlab::View::Presenter::Delegated
   end
 
   def new_file_anchor_data
-    if current_user && can_current_user_push_code?
+    if current_user && can_current_user_push_to_default_branch?
       OpenStruct.new(enabled: false,
                      label: _('New file'),
                      link: project_new_blob_path(project, default_branch || 'master'),
@@ -209,7 +212,7 @@ class ProjectPresenter < Gitlab::View::Presenter::Delegated
   end
 
   def readme_anchor_data
-    if current_user && can_current_user_push_code? && repository.readme.blank?
+    if current_user && can_current_user_push_to_default_branch? && repository.readme.blank?
       OpenStruct.new(enabled: false,
                      label: _('Add Readme'),
                      link: add_readme_path)
@@ -221,7 +224,7 @@ class ProjectPresenter < Gitlab::View::Presenter::Delegated
   end
 
   def changelog_anchor_data
-    if current_user && can_current_user_push_code? && repository.changelog.blank?
+    if current_user && can_current_user_push_to_default_branch? && repository.changelog.blank?
       OpenStruct.new(enabled: false,
                      label: _('Add Changelog'),
                      link: add_changelog_path)
@@ -233,7 +236,7 @@ class ProjectPresenter < Gitlab::View::Presenter::Delegated
   end
 
   def license_anchor_data
-    if current_user && can_current_user_push_code? && repository.license_blob.blank?
+    if current_user && can_current_user_push_to_default_branch? && repository.license_blob.blank?
       OpenStruct.new(enabled: false,
                      label: _('Add License'),
                      link: add_license_path)
@@ -245,7 +248,7 @@ class ProjectPresenter < Gitlab::View::Presenter::Delegated
   end
 
   def contribution_guide_anchor_data
-    if current_user && can_current_user_push_code? && repository.contribution_guide.blank?
+    if current_user && can_current_user_push_to_default_branch? && repository.contribution_guide.blank?
       OpenStruct.new(enabled: false,
                      label: _('Add Contribution guide'),
                      link: add_contribution_guide_path)
diff --git a/app/services/projects/destroy_service.rb b/app/services/projects/destroy_service.rb
index 44e869851ca..71c93660b4b 100644
--- a/app/services/projects/destroy_service.rb
+++ b/app/services/projects/destroy_service.rb
@@ -91,7 +91,7 @@ module Projects
 
         project.run_after_commit do
           # self is now project
-          GitlabShellWorker.perform_in(5.minutes, :remove_repository, self.repository_storage_path, new_path)
+          GitlabShellWorker.perform_in(5.minutes, :remove_repository, self.repository_storage, new_path)
         end
       else
         false
@@ -100,9 +100,9 @@ module Projects
 
     def mv_repository(from_path, to_path)
       # There is a possibility project does not have repository or wiki
-      return true unless gitlab_shell.exists?(project.repository_storage_path, from_path + '.git')
+      return true unless gitlab_shell.exists?(project.repository_storage, from_path + '.git')
 
-      gitlab_shell.mv_repository(project.repository_storage_path, from_path, to_path)
+      gitlab_shell.mv_repository(project.repository_storage, from_path, to_path)
     end
 
     def attempt_rollback(project, message)
diff --git a/app/services/projects/hashed_storage/migrate_repository_service.rb b/app/services/projects/hashed_storage/migrate_repository_service.rb
index 67178de75de..68c1af2396b 100644
--- a/app/services/projects/hashed_storage/migrate_repository_service.rb
+++ b/app/services/projects/hashed_storage/migrate_repository_service.rb
@@ -47,8 +47,8 @@ module Projects
       private
 
       def move_repository(from_name, to_name)
-        from_exists = gitlab_shell.exists?(project.repository_storage_path, "#{from_name}.git")
-        to_exists = gitlab_shell.exists?(project.repository_storage_path, "#{to_name}.git")
+        from_exists = gitlab_shell.exists?(project.repository_storage, "#{from_name}.git")
+        to_exists = gitlab_shell.exists?(project.repository_storage, "#{to_name}.git")
 
         # If we don't find the repository on either original or target we should log that as it could be an issue if the
         # project was not originally empty.
@@ -60,7 +60,7 @@ module Projects
           return true
         end
 
-        gitlab_shell.mv_repository(project.repository_storage_path, from_name, to_name)
+        gitlab_shell.mv_repository(project.repository_storage, from_name, to_name)
       end
 
       def rollback_folder_move
diff --git a/app/services/projects/transfer_service.rb b/app/services/projects/transfer_service.rb
index 5a23f0f0a62..61acdd58021 100644
--- a/app/services/projects/transfer_service.rb
+++ b/app/services/projects/transfer_service.rb
@@ -127,7 +127,7 @@ module Projects
     end
 
     def move_repo_folder(from_name, to_name)
-      gitlab_shell.mv_repository(project.repository_storage_path, from_name, to_name)
+      gitlab_shell.mv_repository(project.repository_storage, from_name, to_name)
     end
 
     def execute_system_hooks
diff --git a/app/services/quick_actions/interpret_service.rb b/app/services/quick_actions/interpret_service.rb
index 6cc51b6ee1b..0215994b1a7 100644
--- a/app/services/quick_actions/interpret_service.rb
+++ b/app/services/quick_actions/interpret_service.rb
@@ -138,8 +138,10 @@ module QuickActions
         'Remove assignee'
       end
     end
-    explanation do
-      "Removes #{'assignee'.pluralize(issuable.assignees.size)} #{issuable.assignees.map(&:to_reference).to_sentence}."
+    explanation do |users = nil|
+      assignees = issuable.assignees
+      assignees &= users if users.present? && issuable.allows_multiple_assignees?
+      "Removes #{'assignee'.pluralize(assignees.size)} #{assignees.map(&:to_reference).to_sentence}."
     end
     params do
       issuable.allows_multiple_assignees? ? '@user1 @user2' : ''
@@ -268,6 +270,26 @@ module QuickActions
       end
     end
 
+    desc 'Copy labels and milestone from other issue or merge request'
+    explanation do |source_issuable|
+      "Copy labels and milestone from #{source_issuable.to_reference}."
+    end
+    params '#issue | !merge_request'
+    condition do
+      issuable.persisted? &&
+        current_user.can?(:"update_#{issuable.to_ability_name}", issuable)
+    end
+    parse_params do |issuable_param|
+      extract_references(issuable_param, :issue).first ||
+        extract_references(issuable_param, :merge_request).first
+    end
+    command :copy_metadata do |source_issuable|
+      if source_issuable.present? && source_issuable.project.id == issuable.project.id
+        @updates[:add_label_ids] = source_issuable.labels.map(&:id)
+        @updates[:milestone_id] = source_issuable.milestone.id if source_issuable.milestone
+      end
+    end
+
     desc 'Add a todo'
     explanation 'Adds a todo.'
     condition do
diff --git a/app/views/groups/edit.html.haml b/app/views/groups/edit.html.haml
index 1642b25642c..5b12082b80b 100644
--- a/app/views/groups/edit.html.haml
+++ b/app/views/groups/edit.html.haml
@@ -1,4 +1,6 @@
 - breadcrumb_title "General Settings"
+- @content_class = "limit-container-width" unless fluid_layout
+
 .card.prepend-top-default
   .card-header
     Group settings
diff --git a/app/views/projects/empty.html.haml b/app/views/projects/empty.html.haml
index ebefa1defbb..06eecae128b 100644
--- a/app/views/projects/empty.html.haml
+++ b/app/views/projects/empty.html.haml
@@ -58,7 +58,9 @@
               touch README.md
               git add README.md
               git commit -m "add README"
-              git push -u origin master
+            - if @project.can_current_user_push_to_default_branch?
+              %span><
+                git push -u origin master
 
         %fieldset
           %h5 Existing folder
@@ -69,7 +71,9 @@
               git remote add origin #{ content_tag(:span, default_url_to_repo, class: 'clone')}
               git add .
               git commit -m "Initial commit"
-              git push -u origin master
+            - if @project.can_current_user_push_to_default_branch?
+              %span><
+                git push -u origin master
 
         %fieldset
           %h5 Existing Git repository
@@ -78,8 +82,10 @@
               cd existing_repo
               git remote rename origin old-origin
               git remote add origin #{ content_tag(:span, default_url_to_repo, class: 'clone')}
-              git push -u origin --all
-              git push -u origin --tags
+            - if @project.can_current_user_push_to_default_branch?
+              %span><
+                git push -u origin --all
+                git push -u origin --tags
 
           - if can? current_user, :remove_project, @project
             .prepend-top-20
diff --git a/app/views/projects/forks/new.html.haml b/app/views/projects/forks/new.html.haml
index 475c6ba4d3d..a603b1024eb 100644..100755
--- a/app/views/projects/forks/new.html.haml
+++ b/app/views/projects/forks/new.html.haml
@@ -12,7 +12,7 @@
     - if @namespaces.present?
       .fork-thumbnail-container.js-fork-content
         %h5.prepend-top-0.append-bottom-0.prepend-left-default.append-right-default
-          Click to fork the project
+          = _("Select a namespace to fork the project")
         - @namespaces.each do |namespace|
           = render 'fork_button', namespace: namespace
     - else
diff --git a/app/views/projects/registry/repositories/index.html.haml b/app/views/projects/registry/repositories/index.html.haml
index f08a421931a..3967de31f64 100644
--- a/app/views/projects/registry/repositories/index.html.haml
+++ b/app/views/projects/registry/repositories/index.html.haml
@@ -29,7 +29,7 @@
             docker login #{Gitlab.config.registry.host_port}
           %br
           %p
-            - deploy_token = link_to(_('deploy token'), help_page_path('user/projects/deploy_tokens/index', anchor: 'read-container-registry-images'), target: '_blank')
+            - deploy_token = link_to(_('deploy token'), help_page_path('user/project/deploy_tokens/index', anchor: 'read-container-registry-images'), target: '_blank')
             = s_('ContainerRegistry|You can also %{deploy_token} for read-only access to the registry images.').html_safe % { deploy_token: deploy_token }
           %br
           %p
diff --git a/app/views/shared/_group_form.html.haml b/app/views/shared/_group_form.html.haml
index 092d9fdb675..dbed4b94d61 100644
--- a/app/views/shared/_group_form.html.haml
+++ b/app/views/shared/_group_form.html.haml
@@ -33,6 +33,13 @@
       required: true,
       title: 'You can choose a descriptive name different from the path.'
 
+- if @group.persisted?
+  .form-group.row.group-name-holder
+    = f.label :id, class: 'col-form-label col-sm-2' do
+      = _("Group ID")
+    .col-sm-10
+      = f.text_field :id, class: 'form-control', readonly: true
+
 .form-group.row.group-description-holder
   = f.label :description, class: 'col-form-label col-sm-2'
   .col-sm-10
diff --git a/app/workers/repository_fork_worker.rb b/app/workers/repository_fork_worker.rb
index 51fad4faf36..08b1c3a7d7a 100644
--- a/app/workers/repository_fork_worker.rb
+++ b/app/workers/repository_fork_worker.rb
@@ -13,7 +13,9 @@ class RepositoryForkWorker
     # See https://gitlab.com/gitlab-org/gitaly/issues/1110
     if args.empty?
       source_project = target_project.forked_from_project
-      return target_project.mark_import_as_failed('Source project cannot be found.') unless source_project
+      unless source_project
+        return target_project.mark_import_as_failed('Source project cannot be found.')
+      end
 
       fork_repository(target_project, source_project.repository_storage, source_project.disk_path)
     else