Created repository list breadcrumbs Vue app

app/assets/javascripts/repository/components/breadcrumbs.vue

+<script>
+import getRefMixin from '../mixins/get_ref';
+import getProjectShortPath from '../queries/getProjectShortPath.graphql';
+
+export default {
+  apollo: {
+    projectShortPath: {
+      query: getProjectShortPath,
+    },
+  },
+  mixins: [getRefMixin],
+  props: {
+    currentPath: {
+      type: String,
+      required: false,
+      default: '/',
+    },
+  },
+  data() {
+    return {
+      projectShortPath: '',
+    };
+  },
+  computed: {
+    pathLinks() {
+      return this.currentPath
+        .split('/')
+        .filter(p => p !== '')
+        .reduce(
+          (acc, name, i) => {
+            const path = `${i > 0 ? acc[i].path : ''}/${name}`;
+
+            return acc.concat({
+              name,
+              path,
+              to: `/tree/${this.ref}${path}`,
+            });
+          },
+          [{ name: this.projectShortPath, path: '/', to: `/tree/${this.ref}` }],
+        );
+    },
+  },
+  methods: {
+    isLast(i) {
+      return i === this.pathLinks.length - 1;
+    },
+  },
+};
+</script>
+
+<template>
+  <nav :aria-label="__('Files breadcrumb')">
+    <ol class="breadcrumb repo-breadcrumb">
+      <li v-for="(link, i) in pathLinks" :key="i" class="breadcrumb-item">
+        <router-link :to="link.to" :aria-current="isLast(i) ? 'page' : null">
+          {{ link.name }}
+        </router-link>
+      </li>
+    </ol>
+  </nav>
+</template>

app/assets/javascripts/repository/index.js

 import Vue from 'vue';
 import createRouter from './router';
 import App from './components/app.vue';
+import Breadcrumbs from './components/breadcrumbs.vue';
 import apolloProvider from './graphql';
 import { setTitle } from './utils/title';
 
 export default function setupVueRepositoryList() {
   const el = document.getElementById('js-tree-list');
-  const { projectPath, ref, fullName } = el.dataset;
+  const { projectPath, projectShortPath, ref, fullName } = el.dataset;
   const router = createRouter(projectPath, ref);
 
   apolloProvider.clients.defaultClient.cache.writeData({
     data: {
       projectPath,
+      projectShortPath,
       ref,
     },
   });
 
-  router.afterEach(({ params: { pathMatch } }) => setTitle(pathMatch, ref, fullName));
-  router.afterEach(to => {
-    const isRoot = to.params.pathMatch === undefined || to.params.pathMatch === '/';
+  router.afterEach(({ params: { pathMatch } }) => {
+    const isRoot = pathMatch === undefined || pathMatch === '/';
+
+    setTitle(pathMatch, ref, fullName);
 
     if (!isRoot) {
       document
@@ -31,6 +34,20 @@ export default function setupVueRepositoryList() {
       .forEach(elem => elem.classList.toggle('hidden', !isRoot));
   });
 
+  // eslint-disable-next-line no-new
+  new Vue({
+    el: document.getElementById('js-repo-breadcrumb'),
+    router,
+    apolloProvider,
+    render(h) {
+      return h(Breadcrumbs, {
+        props: {
+          currentPath: this.$route.params.pathMatch,
+        },
+      });
+    },
+  });
+
   return new Vue({
     el,
     router,

app/assets/javascripts/repository/queries/getProjectShortPath.graphql

+query getProjectShortPath {
+  projectShortPath @client
+}

app/assets/javascripts/repository/utils/title.js

 // eslint-disable-next-line import/prefer-default-export
 export const setTitle = (pathMatch, ref, project) => {
+  if (!pathMatch) return;
+
   const path = pathMatch.replace(/^\//, '');
   const isEmpty = path === '';
 

app/helpers/projects_helper.rb

@@ -655,4 +655,8 @@ module ProjectsHelper
       project.builds_enabled? &&
       !project.repository.gitlab_ci_yml
   end
+
+  def vue_file_list_enabled?
+    Gitlab::Graphql.enabled? && Feature.enabled?(:vue_file_list, @project)
+  end
 end

app/views/projects/_files.html.haml

@@ -4,7 +4,6 @@
 - project = local_assigns.fetch(:project) { @project }
 - content_url = local_assigns.fetch(:content_url) { @tree.readme ? project_blob_path(@project, tree_join(@ref, @tree.readme.path)) : project_tree_path(@project, @ref) }
 - show_auto_devops_callout = show_auto_devops_callout?(@project)
-- vue_file_list = Feature.enabled?(:vue_file_list, @project)
 
 #tree-holder.tree-holder.clearfix
   .nav-block
@@ -14,11 +13,11 @@
     = render 'shared/commit_well', commit: commit, ref: ref, project: project
 
   - if is_project_overview
-    .project-buttons.append-bottom-default{ class: ("js-keep-hidden-on-navigation" if vue_file_list) }
+    .project-buttons.append-bottom-default{ class: ("js-keep-hidden-on-navigation" if vue_file_list_enabled?) }
       = render 'stat_anchor_list', anchors: @project.statistics_buttons(show_auto_devops_callout: show_auto_devops_callout)
 
-  - if vue_file_list
-    #js-tree-list{ data: { project_path: @project.full_path, full_name: @project.name_with_namespace, ref: ref } }
+  - if vue_file_list_enabled?
+    #js-tree-list{ data: { project_path: @project.full_path, project_short_path: @project.path, ref: ref, full_name: @project.name_with_namespace } }
     - if @tree.readme
       = render "projects/tree/readme", readme: @tree.readme
   - else

app/views/projects/_home_panel.html.haml

 - empty_repo = @project.empty_repo?
 - show_auto_devops_callout = show_auto_devops_callout?(@project)
 - max_project_topic_length = 15
-.project-home-panel{ class: [("empty-project" if empty_repo), ("js-keep-hidden-on-navigation" if Feature.enabled?(:vue_file_list, @project))] }
+.project-home-panel{ class: [("empty-project" if empty_repo), ("js-keep-hidden-on-navigation" if vue_file_list_enabled?)] }
   .row.append-bottom-8
     .home-panel-title-row.col-md-12.col-lg-6.d-flex
       .avatar-container.rect-avatar.s64.home-panel-avatar.append-right-default.float-none

app/views/projects/tree/_readme.html.haml

 - if readme.rich_viewer
-  %article.file-holder.readme-holder{ id: 'readme', class: [("limited-width-container" unless fluid_layout), ("js-hide-on-navigation" if Feature.enabled?(:vue_file_list, @project))] }
+  %article.file-holder.readme-holder{ id: 'readme', class: [("limited-width-container" unless fluid_layout), ("js-hide-on-navigation" if vue_file_list_enabled?)] }
     .js-file-title.file-title
       = blob_icon readme.mode, readme.name
       = link_to project_blob_path(@project, tree_join(@ref, readme.path)) do

app/views/projects/tree/_tree_header.html.haml

@@ -6,10 +6,13 @@
     = render 'shared/ref_switcher', destination: 'tree', path: @path, show_create: true
 
     - if on_top_of_branch?
-      - addtotree_toggle_attributes = { href: '#', 'data-toggle': 'dropdown', 'data-target': '.add-to-tree-dropdown', 'data-boundary': 'window' }
+      - addtotree_toggle_attributes = { 'data-toggle': 'dropdown', 'data-target': '.add-to-tree-dropdown', 'data-boundary': 'window' }
     - else
       - addtotree_toggle_attributes = { title: _("You can only add files when you are on a branch"), data: { container: 'body' }, class: 'disabled has-tooltip' }
 
+  - if vue_file_list_enabled?
+    #js-repo-breadcrumb
+  - else
     %ul.breadcrumb.repo-breadcrumb
       %li.breadcrumb-item
         = link_to project_tree_path(@project, @ref) do
@@ -20,7 +23,7 @@
 
       - if can_collaborate || can_create_mr_from_fork
         %li.breadcrumb-item
-        %a.btn.add-to-tree.qa-add-to-tree{ addtotree_toggle_attributes }
+          %button.btn.add-to-tree.qa-add-to-tree{ addtotree_toggle_attributes, type: 'button' }
             = sprite_icon('plus', size: 16, css_class: 'float-left')
             = sprite_icon('arrow-down', size: 16, css_class: 'float-left')
           - if on_top_of_branch?

locale/gitlab.pot

@@ -4389,6 +4389,9 @@ msgstr ""
 msgid "Files"
 msgstr ""
 
+msgid "Files breadcrumb"
+msgstr ""
+
 msgid "Files, directories, and submodules in the path %{path} for commit reference %{ref}"
 msgstr ""
 

spec/features/projects/files/project_owner_creates_license_file_spec.rb

@@ -5,6 +5,7 @@ describe 'Projects > Files > Project owner creates a license file', :js do
   let(:project_maintainer) { project.owner }
 
   before do
+    stub_feature_flags(vue_file_list: false)
     project.repository.delete_file(project_maintainer, 'LICENSE',
       message: 'Remove LICENSE', branch_name: 'master')
     sign_in(project_maintainer)

spec/features/projects/files/user_creates_files_spec.rb

@@ -12,6 +12,7 @@ describe 'Projects > Files > User creates files' do
   let(:user) { create(:user) }
 
   before do
+    stub_feature_flags(vue_file_list: false)
     stub_feature_flags(web_ide_default: false)
 
     project.add_maintainer(user)

spec/features/projects/show/user_sees_collaboration_links_spec.rb

@@ -5,6 +5,7 @@ describe 'Projects > Show > Collaboration links' do
   let(:user) { create(:user) }
 
   before do
+    stub_feature_flags(vue_file_list: false)
     project.add_developer(user)
     sign_in(user)
   end

spec/frontend/repository/components/breadcrumbs_spec.js

+import { shallowMount, RouterLinkStub } from '@vue/test-utils';
+import Breadcrumbs from '~/repository/components/breadcrumbs.vue';
+
+let vm;
+
+function factory(currentPath) {
+  vm = shallowMount(Breadcrumbs, {
+    propsData: {
+      currentPath,
+    },
+    stubs: {
+      RouterLink: RouterLinkStub,
+    },
+  });
+}
+
+describe('Repository breadcrumbs component', () => {
+  afterEach(() => {
+    vm.destroy();
+  });
+
+  it.each`
+    path                        | linkCount
+    ${'/'}                      | ${1}
+    ${'app'}                    | ${2}
+    ${'app/assets'}             | ${3}
+    ${'app/assets/javascripts'} | ${4}
+  `('renders $linkCount links for path $path', ({ path, linkCount }) => {
+    factory(path);
+
+    expect(vm.findAll(RouterLinkStub).length).toEqual(linkCount);
+  });
+
+  it('renders last link as active', () => {
+    factory('app/assets');
+
+    expect(
+      vm
+        .findAll(RouterLinkStub)
+        .at(2)
+        .attributes('aria-current'),
+    ).toEqual('page');
+  });
+});