Function run

github-actions/branch-manager/lib/main.ts:11–94

()

const targetLabelNames = new Set(Object.values(targetLabels).map((t) => t.name));

async function run() {
  if (context.eventName === 'push') {
    const {ref} = context.payload as PushEvent;
    if (!ref.startsWith('refs/heads/')) {
      core.info('No evaluation needed as push is not to a branch');
      return;
    }

    const branchName = ref.substring('refs/heads/'.length);

    core.info(`Evaluating pull requests as a result of a push to branch '${branchName}'`);

    const prs = await github().then((api) =>
      api.paginate(
        api.pulls.list,
        {
          repo: context.repo.repo,
          owner: context.repo.owner,
          state: 'open',
          per_page: 100,
        },
        (pulls) => {
          return pulls.data
            .filter(({labels, base}) => {
              return (
                // Whether the pull request is slated to merge into the same branch as the triggering push.
                base.ref === branchName &&
                // Whether the pull request has the action: merge label.
                labels.some(({name}) => name === actionLabels.ACTION_MERGE.name)
              );
            })
            .map(({number}) => `${number}`);
        },
      ),
    );
    core.info(`Triggering ${prs.length} prs to be evaluated`);

    // Invoke sequentially to avoid github secondary rate limits
    // https://docs.github.com/en/rest/guides/best-practices-for-integrators?apiVersion=2022-11-28#dealing-with-secondary-rate-limits
    for (const pr of prs) {
      await createWorkflowForPullRequest({
        repo: context.issue.repo,
        owner: context.issue.owner,
        pr,
      });
    }
  }

  if (context.eventName === 'pull_request_target') {
    if (
      ['opened', 'synchronize', 'reopened', 'ready_for_review'].includes(context.payload.action!)
    ) {
      const payload = context.payload as PullRequestEvent;
      const hasMergeLabel = payload.pull_request.labels.some(
        ({name}) => name === actionLabels.ACTION_MERGE.name,
      );
      if (hasMergeLabel) {
        await createWorkflowForPullRequest({