Created repository list breadcrumbs Vue app

14 files changed, 208 insertions, 69 deletions

diff --git a/app/assets/javascripts/repository/components/breadcrumbs.vue b/app/assets/javascripts/repository/components/breadcrumbs.vue
new file mode 100644
index 00000000000..6eca015036f
--- /dev/null
+++ b/app/assets/javascripts/repository/components/breadcrumbs.vue
@@ -0,0 +1,61 @@
+<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>
diff --git a/app/assets/javascripts/repository/index.js b/app/assets/javascripts/repository/index.js
index f992d4b6d54..52f53be045b 100644
--- a/app/assets/javascripts/repository/index.js
+++ b/app/assets/javascripts/repository/index.js
@@ -1,24 +1,27 @@
 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,
diff --git a/app/assets/javascripts/repository/queries/getProjectShortPath.graphql b/app/assets/javascripts/repository/queries/getProjectShortPath.graphql
new file mode 100644
index 00000000000..34eb26598c2
--- /dev/null
+++ b/app/assets/javascripts/repository/queries/getProjectShortPath.graphql
@@ -0,0 +1,3 @@
+query getProjectShortPath {
+  projectShortPath @client
+}
diff --git a/app/assets/javascripts/repository/utils/title.js b/app/assets/javascripts/repository/utils/title.js
index 3c3e918c0a8..4e194640e92 100644
--- a/app/assets/javascripts/repository/utils/title.js
+++ b/app/assets/javascripts/repository/utils/title.js
@@ -1,5 +1,7 @@
 // eslint-disable-next-line import/prefer-default-export
 export const setTitle = (pathMatch, ref, project) => {
+  if (!pathMatch) return;
+
   const path = pathMatch.replace(/^\//, '');
   const isEmpty = path === '';
 
diff --git a/app/helpers/projects_helper.rb b/app/helpers/projects_helper.rb
index f798bfbf703..4cf1d6e93a5 100644
--- a/app/helpers/projects_helper.rb
+++ b/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
diff --git a/app/views/projects/_files.html.haml b/app/views/projects/_files.html.haml
index 7f50a7e4294..2b0c3985755 100644
--- a/app/views/projects/_files.html.haml
+++ b/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
diff --git a/app/views/projects/_home_panel.html.haml b/app/views/projects/_home_panel.html.haml
index 6de8848d3a1..9f5241344a7 100644
--- a/app/views/projects/_home_panel.html.haml
+++ b/app/views/projects/_home_panel.html.haml
@@ -1,7 +1,7 @@
 - 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
diff --git a/app/views/projects/tree/_readme.html.haml b/app/views/projects/tree/_readme.html.haml
index e935af23659..4f6c7e1f9a6 100644
--- a/app/views/projects/tree/_readme.html.haml
+++ b/app/views/projects/tree/_readme.html.haml
@@ -1,5 +1,5 @@
 - 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
diff --git a/app/views/projects/tree/_tree_header.html.haml b/app/views/projects/tree/_tree_header.html.haml
index ec8e5234bd4..ea6349f2f57 100644
--- a/app/views/projects/tree/_tree_header.html.haml
+++ b/app/views/projects/tree/_tree_header.html.haml
@@ -6,71 +6,74 @@
     = 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' }
 
-  %ul.breadcrumb.repo-breadcrumb
-    %li.breadcrumb-item
-      = link_to project_tree_path(@project, @ref) do
-        = @project.path
-    - path_breadcrumbs do |title, path|
+  - if vue_file_list_enabled?
+    #js-repo-breadcrumb
+  - else
+    %ul.breadcrumb.repo-breadcrumb
       %li.breadcrumb-item
-        = link_to truncate(title, length: 40), project_tree_path(@project, tree_join(@ref, path))
+        = link_to project_tree_path(@project, @ref) do
+          = @project.path
+      - path_breadcrumbs do |title, path|
+        %li.breadcrumb-item
+          = link_to truncate(title, length: 40), project_tree_path(@project, tree_join(@ref, path))
 
-    - if can_collaborate || can_create_mr_from_fork
-      %li.breadcrumb-item
-        %a.btn.add-to-tree.qa-add-to-tree{ addtotree_toggle_attributes }
-          = sprite_icon('plus', size: 16, css_class: 'float-left')
-          = sprite_icon('arrow-down', size: 16, css_class: 'float-left')
-        - if on_top_of_branch?
-          .add-to-tree-dropdown
-            %ul.dropdown-menu
-              - if can_edit_tree?
-                %li.dropdown-header
-                  #{ _('This directory') }
-                %li
-                  = link_to project_new_blob_path(@project, @id), class: 'qa-new-file-option' do
-                    #{ _('New file') }
-                %li
-                  = link_to '#modal-upload-blob', { 'data-target' => '#modal-upload-blob', 'data-toggle' => 'modal' } do
-                    #{ _('Upload file') }
-                %li
-                  = link_to '#modal-create-new-dir', { 'data-target' => '#modal-create-new-dir', 'data-toggle' => 'modal' } do
-                    #{ _('New directory') }
-              - elsif can?(current_user, :fork_project, @project) && can?(current_user, :create_merge_request_in, @project)
-                %li
-                  - continue_params = { to: project_new_blob_path(@project, @id),
-                                        notice: edit_in_new_fork_notice,
-                                        notice_now: edit_in_new_fork_notice_now }
-                  - fork_path = project_forks_path(@project, namespace_key: current_user.namespace.id, continue: continue_params)
-                  = link_to fork_path, method: :post do
-                    #{ _('New file') }
-                %li
-                  - continue_params = { to: request.fullpath,
-                                        notice: edit_in_new_fork_notice + " Try to upload a file again.",
-                                        notice_now: edit_in_new_fork_notice_now }
-                  - fork_path = project_forks_path(@project, namespace_key: current_user.namespace.id, continue: continue_params)
-                  = link_to fork_path, method: :post do
-                    #{ _('Upload file') }
-                %li
-                  - continue_params = { to: request.fullpath,
-                                        notice: edit_in_new_fork_notice + " Try to create a new directory again.",
-                                        notice_now: edit_in_new_fork_notice_now }
-                  - fork_path = project_forks_path(@project, namespace_key: current_user.namespace.id, continue: continue_params)
-                  = link_to fork_path, method: :post do
-                    #{ _('New directory') }
+      - if can_collaborate || can_create_mr_from_fork
+        %li.breadcrumb-item
+          %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?
+            .add-to-tree-dropdown
+              %ul.dropdown-menu
+                - if can_edit_tree?
+                  %li.dropdown-header
+                    #{ _('This directory') }
+                  %li
+                    = link_to project_new_blob_path(@project, @id), class: 'qa-new-file-option' do
+                      #{ _('New file') }
+                  %li
+                    = link_to '#modal-upload-blob', { 'data-target' => '#modal-upload-blob', 'data-toggle' => 'modal' } do
+                      #{ _('Upload file') }
+                  %li
+                    = link_to '#modal-create-new-dir', { 'data-target' => '#modal-create-new-dir', 'data-toggle' => 'modal' } do
+                      #{ _('New directory') }
+                - elsif can?(current_user, :fork_project, @project) && can?(current_user, :create_merge_request_in, @project)
+                  %li
+                    - continue_params = { to: project_new_blob_path(@project, @id),
+                                          notice: edit_in_new_fork_notice,
+                                          notice_now: edit_in_new_fork_notice_now }
+                    - fork_path = project_forks_path(@project, namespace_key: current_user.namespace.id, continue: continue_params)
+                    = link_to fork_path, method: :post do
+                      #{ _('New file') }
+                  %li
+                    - continue_params = { to: request.fullpath,
+                                          notice: edit_in_new_fork_notice + " Try to upload a file again.",
+                                          notice_now: edit_in_new_fork_notice_now }
+                    - fork_path = project_forks_path(@project, namespace_key: current_user.namespace.id, continue: continue_params)
+                    = link_to fork_path, method: :post do
+                      #{ _('Upload file') }
+                  %li
+                    - continue_params = { to: request.fullpath,
+                                          notice: edit_in_new_fork_notice + " Try to create a new directory again.",
+                                          notice_now: edit_in_new_fork_notice_now }
+                    - fork_path = project_forks_path(@project, namespace_key: current_user.namespace.id, continue: continue_params)
+                    = link_to fork_path, method: :post do
+                      #{ _('New directory') }
 
-              - if can?(current_user, :push_code, @project)
-                %li.divider
-                %li.dropdown-header
-                  #{ _('This repository') }
-                %li
-                  = link_to new_project_branch_path(@project) do
-                    #{ _('New branch') }
-                %li
-                  = link_to new_project_tag_path(@project) do
-                    #{ _('New tag') }
+                - if can?(current_user, :push_code, @project)
+                  %li.divider
+                  %li.dropdown-header
+                    #{ _('This repository') }
+                  %li
+                    = link_to new_project_branch_path(@project) do
+                      #{ _('New branch') }
+                  %li
+                    = link_to new_project_tag_path(@project) do
+                      #{ _('New tag') }
 
 .tree-controls
   = link_to s_('Commits|History'), project_commits_path(@project, @id), class: 'btn'
diff --git a/locale/gitlab.pot b/locale/gitlab.pot
index 9e7ff8d1847..44dda25c38c 100644
--- a/locale/gitlab.pot
+++ b/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 ""
 
diff --git a/spec/features/projects/files/project_owner_creates_license_file_spec.rb b/spec/features/projects/files/project_owner_creates_license_file_spec.rb
index 6762460971f..44715261b8b 100644
--- a/spec/features/projects/files/project_owner_creates_license_file_spec.rb
+++ b/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)
diff --git a/spec/features/projects/files/user_creates_files_spec.rb b/spec/features/projects/files/user_creates_files_spec.rb
index dd2964c2186..69f8bd4d319 100644
--- a/spec/features/projects/files/user_creates_files_spec.rb
+++ b/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)
diff --git a/spec/features/projects/show/user_sees_collaboration_links_spec.rb b/spec/features/projects/show/user_sees_collaboration_links_spec.rb
index 24777788248..46586b891e7 100644
--- a/spec/features/projects/show/user_sees_collaboration_links_spec.rb
+++ b/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
diff --git a/spec/frontend/repository/components/breadcrumbs_spec.js b/spec/frontend/repository/components/breadcrumbs_spec.js
new file mode 100644
index 00000000000..068fa317a87
--- /dev/null
+++ b/spec/frontend/repository/components/breadcrumbs_spec.js
@@ -0,0 +1,44 @@
+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');
+  });
+});