Function fetchAndLogRateLimit

actions/setup/js/github_rate_limit_logger.cjs:134–176

* Fetch the current GitHub API rate-limit information via the rate-limit API * and write a JSONL entry for each resource category. * * Use this for a point-in-time snapshot at the start or end of a script, * rather than after every individual API call. * * Returns the core rate-limit snapshot

(github, operation = "fetch")

 *   Core rate-limit data, or null if the call fails or the core resource is absent.
 */
async function fetchAndLogRateLimit(github, operation = "fetch") {
  try {
    const response = await github.rest.rateLimit.get();
    const resources = response?.data?.resources;
    if (!resources) return null;

    const timestamp = new Date().toISOString();
    for (const [resource, data] of Object.entries(resources)) {
      if (!data || typeof data !== "object") continue;
      /** @type {Record<string, unknown>} */
      const entry = {
        timestamp,
        source: "rate_limit_api",
        operation,
        resource,
        limit: data.limit,
        remaining: data.remaining,
        used: data.used,
        reset: data.reset ? new Date(data.reset * 1000).toISOString() : null,
      };
      appendEntry(entry);
    }

    const coreData = resources.core;
    if (!coreData || typeof coreData !== "object") return null;
    const remaining = Number(coreData.remaining);
    const limit = Number(coreData.limit);
    const used = Number(coreData.used);
    const resetSeconds = Number(coreData.reset);
    if (!Number.isFinite(remaining) || !Number.isFinite(limit) || !Number.isFinite(used) || !Number.isFinite(resetSeconds)) {
      return null;
    }
    return {
      remaining,
      limit,
      used,
      reset: new Date(resetSeconds * 1000).toISOString(),
    };
  } catch (err) {
    core.warning(`github_rate_limit_logger: fetchAndLogRateLimit failed: ${getErrorMessage(err)}`);
    return null;
  }
}

/**
 * Log a retry attempt to the JSONL log file, capturing any rate-limit headers