Changed how prettier comments on PR works (alshedivat#2112)

Signed-off-by: George Araújo <[email protected]>

.github/workflows/prettier-comment-on-pr.yml

@@ -0,0 +1,43 @@
+name: Comment on pull request
+
+on:
+  workflow_run:
+    workflows: [Prettier code formatter]
+    types:
+      - completed
+
+jobs:
+  comment:
+    # available images: https://github.com/actions/runner-images#available-images
+    runs-on: ubuntu-latest
+    if: >
+      github.event.workflow_run.event == 'pull_request' &&
+      github.event.workflow_run.conclusion == 'failure'
+    steps:
+      - name: Download artifact
+        uses: actions/github-script@v7
+        with:
+          script: |
+            var artifacts = await github.actions.listWorkflowRunArtifacts({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              run_id: ${{github.event.workflow_run.id }},
+            });
+            var matchArtifact = artifacts.data.artifacts.filter((artifact) => {
+              return artifact.name == "HTML Diff"
+            })[0];
+            var download = await github.actions.downloadArtifact({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              artifact_id: matchArtifact.id,
+              archive_format: 'zip',
+            });
+            var fs = require('fs');
+            fs.writeFileSync('${{github.workspace}}/HTML Diff.zip', Buffer.from(download.data));
+      - name: Unzip artifact
+        run: unzip HTML\ Diff.zip
+      - name: PR comment with html diff
+        # https://docs.github.com/en/actions/learn-github-actions/expressions#failure-with-conditions
+        uses: thollander/actions-comment-pull-request@v2
+        with:
+          filePath: diff.html

.github/workflows/prettier-on-push.yml → .github/workflows/prettier.yml

@@ -1,11 +1,14 @@
-name: Prettier code formatter (Push)
+name: Prettier code formatter
 
 on:
+  pull_request:
+    branches:
+      - master
+      - main
   push:
     branches:
       - master
       - main
-  workflow_dispatch:
 
 jobs:
   check: