Merge branch 'sh-fix-mermaid-releases-page' into 'master'

Fix Markdown not rendering on releases page

Closes #39483

See merge request gitlab-org/gitlab!23370

app/assets/javascripts/releases/list/components/release_block.vue

 <script>
 import _ from 'underscore';
+import $ from 'jquery';
 import { slugify } from '~/lib/utils/text_utility';
 import { getLocationHash } from '~/lib/utils/url_utility';
 import { scrollToElement } from '~/lib/utils/common_utils';
 import glFeatureFlagsMixin from '~/vue_shared/mixins/gl_feature_flags_mixin';
+import '~/behaviors/markdown/render_gfm';
 import EvidenceBlock from './evidence_block.vue';
 import ReleaseBlockAssets from './release_block_assets.vue';
 import ReleaseBlockFooter from './release_block_footer.vue';
@@ -65,7 +67,10 @@ export default {
       return Boolean(this.glFeatures.releaseIssueSummary && !_.isEmpty(this.release.milestones));
     },
   },
+
   mounted() {
+    this.renderGFM();
+
     const hash = getLocationHash();
     if (hash && slugify(hash) === this.id) {
       this.isHighlighted = true;
@@ -76,6 +81,11 @@ export default {
       scrollToElement(this.$el);
     }
   },
+  methods: {
+    renderGFM() {
+      $(this.$refs['gfm-content']).renderGFM();
+    },
+  },
 };
 </script>
 <template>
@@ -91,7 +101,7 @@ export default {
       <release-block-assets v-if="shouldRenderAssets" :assets="assets" />
       <evidence-block v-if="hasEvidence && shouldShowEvidence" :release="release" />
 
-      <div class="card-text prepend-top-default">
+      <div ref="gfm-content" class="card-text prepend-top-default">
         <div v-html="release.description_html"></div>
       </div>
     </div>

changelogs/unreleased/sh-fix-mermaid-releases-page.yml

+---
+title: Fix Markdown not rendering on releases page
+merge_request: 23370
+author:
+type: fixed

spec/frontend/releases/list/components/release_block_spec.js

+import $ from 'jquery';
 import { mount } from '@vue/test-utils';
 import { first } from 'underscore';
 import EvidenceBlock from '~/releases/list/components/evidence_block.vue';
@@ -43,6 +44,7 @@ describe('Release block', () => {
   const editButton = () => wrapper.find('.js-edit-button');
 
   beforeEach(() => {
+    jest.spyOn($.fn, 'renderGFM');
     releaseClone = JSON.parse(JSON.stringify(release));
   });
 
@@ -66,6 +68,11 @@ describe('Release block', () => {
       expect(wrapper.text()).toContain(release.name);
     });
 
+    it('renders release description', () => {
+      expect(wrapper.vm.$refs['gfm-content']).toBeDefined();
+      expect($.fn.renderGFM).toHaveBeenCalledTimes(1);
+    });
+
     it('renders release date', () => {
       expect(wrapper.text()).toContain(timeagoMixin.methods.timeFormatted(release.released_at));
     });