auto-merge-backports.yml

name: Auto-Merge Test Backport PRs

on:
  schedule:
    - cron: "0 * * * *"  # Every hour
  workflow_dispatch:

jobs:
  auto-merge:
    runs-on: ubuntu-latest

    permissions:
      contents: write
      pull-requests: write

    steps:
      - name: Merge qualifying PRs
        uses: actions/github-script@v7
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            // Get timestamp for 24 hours ago in ISO format
            const now = new Date();
            const iso24HoursAgo = new Date(now.getTime() - 24 * 60 * 60 * 1000).toISOString();

            const query = `repo:${context.repo.owner}/${context.repo.repo} is:pr is:open label:backport label:blathers-backport label:backport-test-only created:<${iso24HoursAgo}`;
            const searchResults = await github.paginate(github.rest.search.issuesAndPullRequests, {
              q: query,
              per_page: 100,
            });

            for (const prItem of searchResults) {
              const prNumber = prItem.number;

              // Fetch full PR details
              const { data: pr } = await github.rest.pulls.get({
                owner: context.repo.owner,
                repo: context.repo.repo,
                pull_number: prNumber,
              });

              // Check for approvals
              const reviews = await github.rest.pulls.listReviews({
                owner: context.repo.owner,
                repo: context.repo.repo,
                pull_number: prNumber,
              });

              const approved = reviews.some(
                r =>
                r.state === 'APPROVED' &&
                r.user?.login === 'blathers-crl[bot]'
                );

              if (!approved) {
                console.log(`Skipping PR #${prNumber}: not approved`);
                continue;
              }

              const labels = prItem.labels.map(l => l.name).join(', ');
              console.log(`Merging PR #${prNumber}, Created at: ${pr.created_at}, Approved: ${approved}, Labels: ${labels}`);
              // Merge the PR
              // try {
              //  console.log(`Merging PR #${prNumber}`);
              //  await github.rest.pulls.merge({
              //    owner: context.repo.owner,
              //    repo: context.repo.repo,
              //    pull_number: prNumber,
              //    merge_method: "merge",
              //  });
              // } catch (err) {
              //  console.warn(`Failed to merge PR #${prNumber}: ${err.message}`);
              // }
            }