Frontend Coverage Comment #4
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| name: Frontend Coverage Comment | |
| # Runs in the base repo's context (not the PR head's), so it gets a | |
| # write-capable GITHUB_TOKEN even for PRs from forks. It never checks out | |
| # or executes any code from the PR — it only downloads the small JSON | |
| # artifact produced by the `build` job in frontend.yml and posts/updates a | |
| # PR comment from it. | |
| on: | |
| workflow_run: | |
| workflows: ["Frontend CI"] | |
| types: [completed] | |
| permissions: | |
| contents: read | |
| pull-requests: write | |
| jobs: | |
| comment: | |
| name: Post coverage comment | |
| runs-on: ubuntu-latest | |
| if: github.event.workflow_run.event == 'pull_request' | |
| steps: | |
| - name: Download coverage report artifact | |
| id: download | |
| continue-on-error: true | |
| uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1 | |
| with: | |
| name: frontend-coverage-report | |
| run-id: ${{ github.event.workflow_run.id }} | |
| github-token: ${{ secrets.GITHUB_TOKEN }} | |
| - name: Post or update comment | |
| if: steps.download.outcome == 'success' | |
| uses: actions/github-script@f28e40c7f34bde8b3046d885e986cb6290c5673b # v7 | |
| with: | |
| script: | | |
| const fs = require('fs'); | |
| const report = JSON.parse(fs.readFileSync('frontend-coverage-report.json', 'utf8')); | |
| const marker = '<!-- frontend-coverage-report -->'; | |
| const row = (label, pct, target) => { | |
| const status = pct >= target ? '✅' : '⚠️'; | |
| return `| ${label} | ${pct.toFixed(2)}% | ${target}% | ${status} |`; | |
| }; | |
| const body = [ | |
| marker, | |
| '### Frontend unit test coverage', | |
| '', | |
| `Commit \`${report.head_sha.slice(0, 7)}\``, | |
| '', | |
| '| Metric | Coverage | Target | |', | |
| '|---|---|---|---|', | |
| row('Statements', report.statements, report.targets.statements), | |
| row('Branches', report.branches, report.targets.branches), | |
| row('Functions', report.functions, report.targets.functions), | |
| row('Lines', report.lines, report.targets.lines), | |
| '', | |
| '_Targets are informational — not currently enforced as a CI gate._', | |
| ].join('\n'); | |
| const { owner, repo } = context.repo; | |
| const issue_number = report.pr_number; | |
| const comments = await github.rest.issues.listComments({ owner, repo, issue_number }); | |
| const existing = comments.data.find((c) => c.body.includes(marker)); | |
| if (existing) { | |
| await github.rest.issues.updateComment({ owner, repo, comment_id: existing.id, body }); | |
| } else { | |
| await github.rest.issues.createComment({ owner, repo, issue_number, body }); | |
| } |