Update shape of releases skeleton loader

This commit updates the shape of the skeleton loader used on the
Releases and the individual Release page.

app/assets/javascripts/releases/components/app_index.vue

 <script>
 import { mapState, mapActions } from 'vuex';
-import {
-  GlDeprecatedSkeletonLoading as GlSkeletonLoading,
-  GlEmptyState,
-  GlLink,
-  GlButton,
-} from '@gitlab/ui';
+import { GlEmptyState, GlLink, GlButton } from '@gitlab/ui';
 import { getParameterByName } from '~/lib/utils/common_utils';
 import { __ } from '~/locale';
 import ReleaseBlock from './release_block.vue';
 import ReleasesPagination from './releases_pagination.vue';
+import ReleaseSkeletonLoader from './release_skeleton_loader.vue';
 
 export default {
   name: 'ReleasesApp',
   components: {
-    GlSkeletonLoading,
     GlEmptyState,
-    ReleaseBlock,
-    ReleasesPagination,
     GlLink,
     GlButton,
+    ReleaseBlock,
+    ReleasesPagination,
+    ReleaseSkeletonLoader,
   },
   computed: {
     ...mapState('list', [
@@ -77,7 +73,7 @@ export default {
       {{ __('New release') }}
     </gl-button>
 
-    <gl-skeleton-loading v-if="isLoading" class="js-loading" />
+    <release-skeleton-loader v-if="isLoading" class="js-loading" />
 
     <gl-empty-state
       v-else-if="shouldRenderEmptyState"

app/assets/javascripts/releases/components/app_show.vue

 <script>
 import { mapState, mapActions } from 'vuex';
-import { GlDeprecatedSkeletonLoading as GlSkeletonLoading } from '@gitlab/ui';
 import ReleaseBlock from './release_block.vue';
+import ReleaseSkeletonLoader from './release_skeleton_loader.vue';
 
 export default {
   name: 'ReleaseShowApp',
   components: {
-    GlSkeletonLoading,
     ReleaseBlock,
+    ReleaseSkeletonLoader,
   },
   computed: {
     ...mapState('detail', ['isFetchingRelease', 'fetchError', 'release']),
@@ -22,7 +22,7 @@ export default {
 </script>
 <template>
   <div class="gl-mt-3">
-    <gl-skeleton-loading v-if="isFetchingRelease" />
+    <release-skeleton-loader v-if="isFetchingRelease" />
 
     <release-block v-else-if="!fetchError" :release="release" />
   </div>

app/assets/javascripts/releases/components/release_skeleton_loader.vue

+<script>
+import { GlSkeletonLoader } from '@gitlab/ui';
+
+export default {
+  name: 'ReleaseSkeletonLoader',
+  components: { GlSkeletonLoader },
+};
+</script>
+<template>
+  <gl-skeleton-loader :width="1248" :height="420">
+    <!-- Outside border -->
+    <path
+      d="M 4.5 0 C 2.0156486 0 0 2.0156486 0 4.5 L 0 415.5 C 0 417.98435 2.0156486 420 4.5 420 L 1243.5 420 C 1245.9844 420 1248 417.98435 1248 415.5 L 1248 4.5 C 1248 2.0156486 1245.9844 0 1243.5 0 L 4.5 0 z M 4.5 1 L 1243.5 1 C 1245.4476 1 1247 2.5523514 1247 4.5 L 1247 415.5 C 1247 417.44765 1245.4476 419 1243.5 419 L 4.5 419 C 2.5523514 419 1 417.44765 1 415.5 L 1 4.5 C 1 2.5523514 2.5523514 1 4.5 1 z "
+    />
+
+    <!-- Header bottom border -->
+    <rect x="0" y="63.5" width="1248" height="1" />
+
+    <!-- Release title -->
+    <rect x="16" y="20" width="293" height="24" />
+
+    <!-- Edit (pencil) button -->
+    <rect x="1207" y="16" rx="4" width="32" height="32" />
+
+    <!-- Asset link 1 -->
+    <rect x="40" y="121" rx="4" width="16" height="16" />
+    <rect x="60" y="125" width="116" height="8" />
+
+    <!-- Asset link 2 -->
+    <rect x="40" y="145" rx="4" width="16" height="16" />
+    <rect x="60" y="149" width="132" height="8" />
+
+    <!-- Asset link 3 -->
+    <rect x="40" y="169" rx="4" width="16" height="16" />
+    <rect x="60" y="173" width="140" height="8" />
+
+    <!-- Asset link 4 -->
+    <rect x="40" y="193" rx="4" width="16" height="16" />
+    <rect x="60" y="197" width="112" height="8" />
+
+    <!-- Release notes -->
+    <rect x="16" y="228" width="480" height="8" />
+    <rect x="16" y="252" width="560" height="8" />
+    <rect x="16" y="276" width="480" height="8" />
+    <rect x="16" y="300" width="560" height="8" />
+    <rect x="16" y="324" width="320" height="8" />
+
+    <!-- Footer top border -->
+    <rect x="0" y="373" width="1248" height="1" />
+  </gl-skeleton-loader>
+</template>

changelogs/unreleased/nfriend-update-releases-page-skeleton-loader-shape.yml

+---
+title: Update skeleton loader shape on releases pages
+merge_request: 43138
+author:
+type: added

spec/frontend/releases/components/app_show_spec.js

 import Vuex from 'vuex';
 import { shallowMount } from '@vue/test-utils';
-import { GlDeprecatedSkeletonLoading as GlSkeletonLoading } from '@gitlab/ui';
 import ReleaseShowApp from '~/releases/components/app_show.vue';
+import ReleaseSkeletonLoader from '~/releases/components/release_skeleton_loader.vue';
 import { release as originalRelease } from '../mock_data';
 import ReleaseBlock from '~/releases/components/release_block.vue';
 import { convertObjectPropsToCamelCase } from '~/lib/utils/common_utils';
@@ -33,7 +33,7 @@ describe('Release show component', () => {
     wrapper = shallowMount(ReleaseShowApp, { store });
   };
 
-  const findLoadingSkeleton = () => wrapper.find(GlSkeletonLoading);
+  const findLoadingSkeleton = () => wrapper.find(ReleaseSkeletonLoader);
   const findReleaseBlock = () => wrapper.find(ReleaseBlock);
 
   it('calls fetchRelease when the component is created', () => {

spec/frontend/releases/components/release_skeleton_loader_spec.js

+import { mount } from '@vue/test-utils';
+import { GlSkeletonLoader } from '@gitlab/ui';
+import ReleaseSkeletonLoader from '~/releases/components/release_skeleton_loader.vue';
+
+describe('release_skeleton_loader.vue', () => {
+  let wrapper;
+
+  beforeEach(() => {
+    wrapper = mount(ReleaseSkeletonLoader);
+  });
+
+  it('renders a GlSkeletonLoader', () => {
+    expect(wrapper.find(GlSkeletonLoader).exists()).toBe(true);
+  });
+});