feat: comment pr with all vercel preview links

Author: xiaoyu2er

.github/actions/comment-vercel-preview/action.yml

@@ -1,33 +1,49 @@
 name: 'Comment Vercel Preview'
 description: 'Comment Vercel deploy preview links on a PR.'
 inputs:
-  inspect_url:
-    description: 'Inspect URL from Vercel deploy output.'
-    required: true
-  preview_url:
-    description: 'Preview/Production URL from Vercel deploy output.'
-    required: true
-  label:
-    description: 'Label for the deployment (e.g., EN, ZH-HANS).'
+  deploy_results_path:
+    description: 'Path to the JSON file containing all deploy results.'
     required: true
 runs:
   using: 'composite'
   steps:
-    - name: Comment PR with Vercel Preview Links
+    - name: Comment PR with all Vercel Preview Links
       uses: actions/github-script@v7
       with:
         script: |
-          const inspect = process.env.INSPECT_URL;
-          const preview = process.env.PREVIEW_URL;
-          let body = `**Vercel Deploy Preview (${process.env.LABEL})**\n\n`;
-          body += `- [Inspect](${inspect}) | [Preview](${preview})`;
-          github.rest.issues.createComment({
+          const fs = require('fs');
+          const path = process.env.DEPLOY_RESULTS_PATH;
+          const marker = '<!-- vercel-preview-links -->';
+          const results = JSON.parse(fs.readFileSync(path, 'utf8'));
+          let body = `${marker}\n`;
+          body += `## Vercel Deploy Previews\n`;
+          for (const key in results) {
+            const job = results[key];
+            if (job.result === 'success' && job.outputs && job.outputs.label) {
+              body += `- **${job.outputs.label}**: [Inspect](${job.outputs.inspect_url}) | [Preview](${job.outputs.preview_url})\n`;
+            }
+          }
+          // Find existing comment
+          const { data: comments } = await github.rest.issues.listComments({
             issue_number: context.issue.number,
             owner: context.repo.owner,
             repo: context.repo.repo,
-            body
           });
+          const existing = comments.find(c => c.body && c.body.includes(marker));
+          if (existing) {
+            await github.rest.issues.updateComment({
+              comment_id: existing.id,
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              body
+            });
+          } else {
+            await github.rest.issues.createComment({
+              issue_number: context.issue.number,
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              body
+            });
+          }
       env:
-        INSPECT_URL: ${{ inputs.inspect_url }}
-        PREVIEW_URL: ${{ inputs.preview_url }}
-        LABEL: ${{ inputs.label }}
+        DEPLOY_RESULTS_PATH: ${{ inputs.deploy_results_path }}

.github/workflows/prerelease.yml

@@ -68,10 +68,25 @@ jobs:
           vercel_project_id: ${{ secrets[matrix.secret_project_id] }}
           vercel_org_id: ${{ secrets.VERCEL_ORG_ID }}
           vercel_token: ${{ secrets.VERCEL_TOKEN }}
-      - name: Comment PR with Vercel Preview Links (${{ matrix.locale }})
+      - name: Set deploy outputs
         if: steps.should_deploy.outputs.should_deploy == 'true'
+        run: |
+          echo "preview_url=${{ steps.deploy.outputs.prod_url }}" >> $GITHUB_OUTPUT
+          echo "inspect_url=${{ steps.deploy.outputs.inspect_url }}" >> $GITHUB_OUTPUT
+          echo "label=${{ matrix.locale }}" >> $GITHUB_OUTPUT
+
+  comment-vercel-previews:
+    needs: deploy
+    runs-on: ubuntu-latest
+    if: always()
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v3
+      - name: Aggregate deploy results
+        id: aggregate
+        run: |
+          echo '${{ toJson(needs.deploy) }}' > deploy-results.json
+      - name: Comment PR with all Vercel Preview Links
         uses: ./.github/actions/comment-vercel-preview
         with:
-          inspect_url: ${{ steps.deploy.outputs.inspect_url }}
-          preview_url: ${{ steps.deploy.outputs.prod_url }}
-          label: ${{ matrix.locale }}
+          deploy_results_path: deploy-results.json