Merge branch 'ph/35638/readmeVueLoad' into 'master'

Vue file listing refactor load README files

Closes #35638

See merge request gitlab-org/gitlab!19689

app/assets/javascripts/repository/components/preview/index.vue

+<script>
+import { GlLink, GlLoadingIcon } from '@gitlab/ui';
+import getReadmeQuery from '../../queries/getReadme.query.graphql';
+
+export default {
+  apollo: {
+    readme: {
+      query: getReadmeQuery,
+      variables() {
+        return {
+          url: this.blob.webUrl,
+        };
+      },
+      loadingKey: 'loading',
+    },
+  },
+  components: {
+    GlLink,
+    GlLoadingIcon,
+  },
+  props: {
+    blob: {
+      type: Object,
+      required: true,
+    },
+  },
+  data() {
+    return {
+      readme: null,
+      loading: 0,
+    };
+  },
+};
+</script>
+
+<template>
+  <article class="file-holder js-hide-on-navigation limited-width-container readme-holder">
+    <div class="file-title">
+      <i aria-hidden="true" class="fa fa-file-text-o fa-fw"></i>
+      <gl-link :href="blob.webUrl">
+        <strong>{{ blob.name }}</strong>
+      </gl-link>
+    </div>
+    <div class="blob-viewer">
+      <gl-loading-icon v-if="loading > 0" size="md" class="my-4 mx-auto" />
+      <div v-else-if="readme" v-html="readme.html"></div>
+    </div>
+  </article>
+</template>

app/assets/javascripts/repository/components/table/index.vue

 <script>
 import { GlSkeletonLoading } from '@gitlab/ui';
-import createFlash from '~/flash';
 import { sprintf, __ } from '../../../locale';
 import getRefMixin from '../../mixins/get_ref';
-import getFiles from '../../queries/getFiles.query.graphql';
 import getProjectPath from '../../queries/getProjectPath.query.graphql';
 import TableHeader from './header.vue';
 import TableRow from './row.vue';
 import ParentRow from './parent_row.vue';
 
-const PAGE_SIZE = 100;
-
 export default {
   components: {
     GlSkeletonLoading,
@@ -29,22 +25,24 @@ export default {
       type: String,
       required: true,
     },
+    entries: {
+      type: Object,
+      required: false,
+      default: () => ({}),
+    },
+    isLoading: {
+      type: Boolean,
+      required: true,
+    },
   },
   data() {
     return {
       projectPath: '',
-      nextPageCursor: '',
-      entries: {
-        trees: [],
-        submodules: [],
-        blobs: [],
-      },
-      isLoadingFiles: false,
     };
   },
   computed: {
     tableCaption() {
-      if (this.isLoadingFiles) {
+      if (this.isLoading) {
         return sprintf(
           __(
             'Loading files, directories, and submodules in the path %{path} for commit reference %{ref}',
@@ -59,65 +57,7 @@ export default {
       );
     },
     showParentRow() {
-      return !this.isLoadingFiles && ['', '/'].indexOf(this.path) === -1;
-    },
-  },
-  watch: {
-    $route: function routeChange() {
-      this.entries.trees = [];
-      this.entries.submodules = [];
-      this.entries.blobs = [];
-      this.nextPageCursor = '';
-      this.fetchFiles();
-    },
-  },
-  mounted() {
-    // We need to wait for `ref` and `projectPath` to be set
-    this.$nextTick(() => this.fetchFiles());
-  },
-  methods: {
-    fetchFiles() {
-      this.isLoadingFiles = true;
-
-      return this.$apollo
-        .query({
-          query: getFiles,
-          variables: {
-            projectPath: this.projectPath,
-            ref: this.ref,
-            path: this.path || '/',
-            nextPageCursor: this.nextPageCursor,
-            pageSize: PAGE_SIZE,
-          },
-        })
-        .then(({ data }) => {
-          if (!data) return;
-
-          const pageInfo = this.hasNextPage(data.project.repository.tree);
-
-          this.isLoadingFiles = false;
-          this.entries = Object.keys(this.entries).reduce(
-            (acc, key) => ({
-              ...acc,
-              [key]: this.normalizeData(key, data.project.repository.tree[key].edges),
-            }),
-            {},
-          );
-
-          if (pageInfo && pageInfo.hasNextPage) {
-            this.nextPageCursor = pageInfo.endCursor;
-            this.fetchFiles();
-          }
-        })
-        .catch(() => createFlash(__('An error occurred while fetching folder content.')));
-    },
-    normalizeData(key, data) {
-      return this.entries[key].concat(data.map(({ node }) => node));
-    },
-    hasNextPage(data) {
-      return []
-        .concat(data.trees.pageInfo, data.submodules.pageInfo, data.blobs.pageInfo)
-        .find(({ hasNextPage }) => hasNextPage);
+      return !this.isLoading && ['', '/'].indexOf(this.path) === -1;
     },
   },
 };
@@ -145,7 +85,7 @@ export default {
               :lfs-oid="entry.lfsOid"
             />
           </template>
-          <template v-if="isLoadingFiles">
+          <template v-if="isLoading">
             <tr v-for="i in 5" :key="i" aria-hidden="true">
               <td><gl-skeleton-loading :lines="1" class="h-auto" /></td>
               <td><gl-skeleton-loading :lines="1" class="h-auto" /></td>

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

+<script>
+import createFlash from '~/flash';
+import { __ } from '../../locale';
+import FileTable from './table/index.vue';
+import getRefMixin from '../mixins/get_ref';
+import getFiles from '../queries/getFiles.query.graphql';
+import getProjectPath from '../queries/getProjectPath.query.graphql';
+import FilePreview from './preview/index.vue';
+import { readmeFile } from '../utils/readme';
+
+const PAGE_SIZE = 100;
+
+export default {
+  components: {
+    FileTable,
+    FilePreview,
+  },
+  mixins: [getRefMixin],
+  apollo: {
+    projectPath: {
+      query: getProjectPath,
+    },
+  },
+  props: {
+    path: {
+      type: String,
+      required: false,
+      default: '/',
+    },
+  },
+  data() {
+    return {
+      projectPath: '',
+      nextPageCursor: '',
+      entries: {
+        trees: [],
+        submodules: [],
+        blobs: [],
+      },
+      isLoadingFiles: false,
+    };
+  },
+  computed: {
+    readme() {
+      return readmeFile(this.entries.blobs);
+    },
+  },
+
+  watch: {
+    $route: function routeChange() {
+      this.entries.trees = [];
+      this.entries.submodules = [];
+      this.entries.blobs = [];
+      this.nextPageCursor = '';
+      this.fetchFiles();
+    },
+  },
+  mounted() {
+    // We need to wait for `ref` and `projectPath` to be set
+    this.$nextTick(() => this.fetchFiles());
+  },
+  methods: {
+    fetchFiles() {
+      this.isLoadingFiles = true;
+
+      return this.$apollo
+        .query({
+          query: getFiles,
+          variables: {
+            projectPath: this.projectPath,
+            ref: this.ref,
+            path: this.path || '/',
+            nextPageCursor: this.nextPageCursor,
+            pageSize: PAGE_SIZE,
+          },
+        })
+        .then(({ data }) => {
+          if (!data) return;
+
+          const pageInfo = this.hasNextPage(data.project.repository.tree);
+
+          this.isLoadingFiles = false;
+          this.entries = Object.keys(this.entries).reduce(
+            (acc, key) => ({
+              ...acc,
+              [key]: this.normalizeData(key, data.project.repository.tree[key].edges),
+            }),
+            {},
+          );
+
+          if (pageInfo && pageInfo.hasNextPage) {
+            this.nextPageCursor = pageInfo.endCursor;
+            this.fetchFiles();
+          }
+        })
+        .catch(() => createFlash(__('An error occurred while fetching folder content.')));
+    },
+    normalizeData(key, data) {
+      return this.entries[key].concat(data.map(({ node }) => node));
+    },
+    hasNextPage(data) {
+      return []
+        .concat(data.trees.pageInfo, data.submodules.pageInfo, data.blobs.pageInfo)
+        .find(({ hasNextPage }) => hasNextPage);
+    },
+  },
+};
+</script>
+
+<template>
+  <div>
+    <file-table :path="path" :entries="entries" :is-loading="isLoadingFiles" />
+    <file-preview v-if="readme" :blob="readme" />
+  </div>
+</template>

app/assets/javascripts/repository/graphql.js

 import Vue from 'vue';
 import VueApollo from 'vue-apollo';
 import { IntrospectionFragmentMatcher } from 'apollo-cache-inmemory';
+import axios from '~/lib/utils/axios_utils';
 import createDefaultClient from '~/lib/graphql';
 import introspectionQueryResultData from './fragmentTypes.json';
 import { fetchLogsTree } from './log_tree';
@@ -27,6 +28,11 @@ const defaultClient = createDefaultClient(
           });
         });
       },
+      readme(_, { url }) {
+        return axios
+          .get(url, { params: { viewer: 'rich', format: 'json' } })
+          .then(({ data }) => ({ ...data, __typename: 'ReadmeFile' }));
+      },
     },
   },
   {

app/assets/javascripts/repository/pages/index.vue

 <script>
-import FileTable from '../components/table/index.vue';
+import TreeContent from '../components/tree_content.vue';
 
 export default {
   components: {
-    FileTable,
-  },
-  data() {
-    return {
-      ref: '',
-    };
+    TreeContent,
   },
 };
 </script>
 
 <template>
-  <file-table path="/" />
+  <tree-content />
 </template>

app/assets/javascripts/repository/pages/tree.vue

 <script>
-import FileTable from '../components/table/index.vue';
+import TreeContent from '../components/tree_content.vue';
 
 export default {
   components: {
-    FileTable,
+    TreeContent,
   },
   props: {
     path: {
@@ -16,5 +16,5 @@ export default {
 </script>
 
 <template>
-  <file-table :path="path" />
+  <tree-content :path="path" />
 </template>

app/assets/javascripts/repository/queries/getReadme.query.graphql

+query getReadme($url: String!) {
+  readme(url: $url) @client {
+    html
+  }
+}

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

+const MARKDOWN_EXTENSIONS = ['mdown', 'mkd', 'mkdn', 'md', 'markdown'];
+const ASCIIDOC_EXTENSIONS = ['adoc', 'ad', 'asciidoc'];
+const OTHER_EXTENSIONS = ['textile', 'rdoc', 'org', 'creole', 'wiki', 'mediawiki', 'rst'];
+const EXTENSIONS = [...MARKDOWN_EXTENSIONS, ...ASCIIDOC_EXTENSIONS, ...OTHER_EXTENSIONS];
+const PLAIN_FILENAMES = ['readme', 'index'];
+const FILE_REGEXP = new RegExp(`^(${PLAIN_FILENAMES.join('|')})`, 'i');
+const EXTENSIONS_REGEXP = new RegExp(`.(${EXTENSIONS.join('|')})$`, 'i');
+
+// eslint-disable-next-line import/prefer-default-export
+export const readmeFile = blobs => {
+  const readMeFiles = blobs.filter(f => f.name.search(FILE_REGEXP) !== -1);
+
+  const previewableReadme = readMeFiles.find(f => f.name.search(EXTENSIONS_REGEXP) !== -1);
+  const plainReadme = readMeFiles.find(f => f.name.search(FILE_REGEXP) !== -1);
+
+  return previewableReadme || plainReadme;
+};

app/views/projects/_files.html.haml

@@ -23,7 +23,5 @@
     - if can_edit_tree?
       = render 'projects/blob/upload', title: _('Upload New File'), placeholder: _('Upload New File'), button_title: _('Upload file'), form_path: project_create_blob_path(@project, @id), method: :post
       = render 'projects/blob/new_dir'
-    - if @tree.readme
-      = render "projects/tree/readme", readme: @tree.readme
   - else
     = render 'projects/tree/tree_content', tree: @tree, content_url: content_url

spec/frontend/repository/components/preview/__snapshots__/index_spec.js.snap

+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`Repository file preview component renders file HTML 1`] = `
+<article
+  class="file-holder js-hide-on-navigation limited-width-container readme-holder"
+>
+  <div
+    class="file-title"
+  >
+    <i
+      aria-hidden="true"
+      class="fa fa-file-text-o fa-fw"
+    />
+     
+    <gllink-stub
+      href="http://test.com"
+    >
+      <strong>
+        README.md
+      </strong>
+    </gllink-stub>
+  </div>
+   
+  <div
+    class="blob-viewer"
+  >
+    <div>
+      <div
+        class="blob"
+      >
+        test
+      </div>
+    </div>
+  </div>
+</article>
+`;

spec/frontend/repository/components/preview/index_spec.js

+import { shallowMount } from '@vue/test-utils';
+import { GlLoadingIcon } from '@gitlab/ui';
+import Preview from '~/repository/components/preview/index.vue';
+
+let vm;
+let $apollo;
+
+function factory(blob) {
+  $apollo = {
+    query: jest.fn().mockReturnValue(Promise.resolve({})),
+  };
+
+  vm = shallowMount(Preview, {
+    propsData: {
+      blob,
+    },
+    mocks: {
+      $apollo,
+    },
+  });
+}
+
+describe('Repository file preview component', () => {
+  afterEach(() => {
+    vm.destroy();
+  });
+
+  it('renders file HTML', () => {
+    factory({
+      webUrl: 'http://test.com',
+      name: 'README.md',
+    });
+
+    vm.setData({ readme: { html: '<div class="blob">test</div>' } });
+
+    expect(vm.element).toMatchSnapshot();
+  });
+
+  it('renders loading icon', () => {
+    factory({
+      webUrl: 'http://test.com',
+      name: 'README.md',
+    });
+
+    vm.setData({ loading: 1 });
+
+    expect(vm.find(GlLoadingIcon).exists()).toBe(true);
+  });
+});

spec/frontend/repository/components/table/index_spec.js

 import { shallowMount } from '@vue/test-utils';
 import { GlSkeletonLoading } from '@gitlab/ui';
 import Table from '~/repository/components/table/index.vue';
+import TableRow from '~/repository/components/table/row.vue';
 
 let vm;
 let $apollo;
 
-function factory(path, data = () => ({})) {
-  $apollo = {
-    query: jest.fn().mockReturnValue(Promise.resolve({ data: data() })),
-  };
+const MOCK_BLOBS = [
+  {
+    id: '123abc',
+    flatPath: 'blob',
+    name: 'blob.md',
+    type: 'blob',
+    webUrl: 'http://test.com',
+  },
+  {
+    id: '124abc',
+    flatPath: 'blob2',
+    name: 'blob2.md',
+    type: 'blob',
+    webUrl: 'http://test.com',
+  },
+];
 
+function factory({ path, isLoading = false, entries = {} }) {
   vm = shallowMount(Table, {
     propsData: {
       path,
+      isLoading,
+      entries,
     },
     mocks: {
       $apollo,
@@ -31,7 +47,7 @@ describe('Repository table component', () => {
     ${'app/assets'} | ${'master'}
     ${'/'}          | ${'test'}
   `('renders table caption for $ref in $path', ({ path, ref }) => {
-    factory(path);
+    factory({ path });
 
     vm.setData({ ref });
 
@@ -41,40 +57,20 @@ describe('Repository table component', () => {
   });
 
   it('shows loading icon', () => {
-    factory('/');
-
-    vm.setData({ isLoadingFiles: true });
+    factory({ path: '/', isLoading: true });
 
     expect(vm.find(GlSkeletonLoading).exists()).toBe(true);
   });
 
-  describe('normalizeData', () => {
-    it('normalizes edge nodes', () => {
-      const output = vm.vm.normalizeData('blobs', [{ node: '1' }, { node: '2' }]);
-
-      expect(output).toEqual(['1', '2']);
-    });
-  });
-
-  describe('hasNextPage', () => {
-    it('returns undefined when hasNextPage is false', () => {
-      const output = vm.vm.hasNextPage({
-        trees: { pageInfo: { hasNextPage: false } },
-        submodules: { pageInfo: { hasNextPage: false } },
-        blobs: { pageInfo: { hasNextPage: false } },
-      });
-
-      expect(output).toBe(undefined);
-    });
-
-    it('returns pageInfo object when hasNextPage is true', () => {
-      const output = vm.vm.hasNextPage({
-        trees: { pageInfo: { hasNextPage: false } },
-        submodules: { pageInfo: { hasNextPage: false } },
-        blobs: { pageInfo: { hasNextPage: true, nextCursor: 'test' } },
+  it('renders table rows', () => {
+    factory({
+      path: '/',
+      entries: {
+        blobs: MOCK_BLOBS,
+      },
     });
 
-      expect(output).toEqual({ hasNextPage: true, nextCursor: 'test' });
-    });
+    expect(vm.find(TableRow).exists()).toBe(true);
+    expect(vm.findAll(TableRow).length).toBe(2);
   });
 });

spec/frontend/repository/components/tree_content_spec.js

+import { shallowMount } from '@vue/test-utils';
+import TreeContent from '~/repository/components/tree_content.vue';
+import FilePreview from '~/repository/components/preview/index.vue';
+
+let vm;
+let $apollo;
+
+function factory(path, data = () => ({})) {
+  $apollo = {
+    query: jest.fn().mockReturnValue(Promise.resolve({ data: data() })),
+  };
+
+  vm = shallowMount(TreeContent, {
+    propsData: {
+      path,
+    },
+    mocks: {
+      $apollo,
+    },
+  });
+}
+
+describe('Repository table component', () => {
+  afterEach(() => {
+    vm.destroy();
+  });
+
+  it('renders file preview', () => {
+    factory('/');
+
+    vm.setData({ entries: { blobs: [{ name: 'README.md ' }] } });
+
+    expect(vm.find(FilePreview).exists()).toBe(true);
+  });
+
+  describe('normalizeData', () => {
+    it('normalizes edge nodes', () => {
+      factory('/');
+
+      const output = vm.vm.normalizeData('blobs', [{ node: '1' }, { node: '2' }]);
+
+      expect(output).toEqual(['1', '2']);
+    });
+  });
+
+  describe('hasNextPage', () => {
+    it('returns undefined when hasNextPage is false', () => {
+      factory('/');
+
+      const output = vm.vm.hasNextPage({
+        trees: { pageInfo: { hasNextPage: false } },
+        submodules: { pageInfo: { hasNextPage: false } },
+        blobs: { pageInfo: { hasNextPage: false } },
+      });
+
+      expect(output).toBe(undefined);
+    });
+
+    it('returns pageInfo object when hasNextPage is true', () => {
+      factory('/');
+
+      const output = vm.vm.hasNextPage({
+        trees: { pageInfo: { hasNextPage: false } },
+        submodules: { pageInfo: { hasNextPage: false } },
+        blobs: { pageInfo: { hasNextPage: true, nextCursor: 'test' } },
+      });
+
+      expect(output).toEqual({ hasNextPage: true, nextCursor: 'test' });
+    });
+  });
+});