label-ci-status.yaml

name: 'Label CI Status on PRs'
on:
  check_suite:
    types: [completed]

permissions:
  pull-requests: write

jobs:
  label-ci-status:
    runs-on: ubuntu-latest
    # Only run for PRs, not pushes to branches
    if: github.event.check_suite.pull_requests[0] != null
    steps:
      - name: Add or remove ci-failed label
        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
        with:
          script: |
            const pullRequests = context.payload.check_suite.pull_requests;
            const conclusion = context.payload.check_suite.conclusion;
            const label = 'ci-failed';

            for (const pr of pullRequests) {
              const prNumber = pr.number;

              // Get current labels
              const { data: currentLabels } = await github.rest.issues.listLabelsOnIssue({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: prNumber,
              });
              const hasLabel = currentLabels.some(l => l.name === label);

              if (conclusion === 'failure' && !hasLabel) {
                console.log(`PR #${prNumber}: CI failed → adding '${label}' label`);
                await github.rest.issues.addLabels({
                  owner: context.repo.owner,
                  repo: context.repo.repo,
                  issue_number: prNumber,
                  labels: [label],
                });
              } else if (conclusion === 'success' && hasLabel) {
                console.log(`PR #${prNumber}: CI passed → removing '${label}' label`);
                await github.rest.issues.removeLabel({
                  owner: context.repo.owner,
                  repo: context.repo.repo,
                  issue_number: prNumber,
                  name: label,
                });
              } else {
                console.log(`PR #${prNumber}: conclusion=${conclusion}, hasLabel=${hasLabel} → no action`);
              }
            }