Function getPushEventRange

packages/bumpy/src/commands/ci.ts:926–940

Read the push event's before/after range, if running on a GitHub Actions push event

()

/** Read the push event's before/after range, if running on a GitHub Actions push event */
function getPushEventRange(): { before: string; after: string } | null {
  if (process.env.GITHUB_EVENT_NAME !== 'push') return null;
  const path = process.env.GITHUB_EVENT_PATH;
  if (!path) return null;
  try {
    const payload = JSON.parse(readFileSync(path, 'utf-8')) as { before?: string; after?: string };
    // "before" is all zeros for branch-creation pushes — no usable range
    if (payload.before && payload.after && !/^0+$/.test(payload.before)) {
      return { before: payload.before, after: payload.after };
    }
  } catch {
    // fall through
  }
  return null;
}

/**
 * Bump file IDs added to `.bumpy/<channel>/` by the push that triggered this run.