Function shutdown

src/index.ts:1760–1768

(code: number)

  };

  const shutdown = (code: number) => {
    if (shuttingDown) {
      return;
    }
    shuttingDown = true;
    clearIdleTimer();
    stopAllWatchers();
    process.exit(code);
  };

  const scheduleIdleShutdown = () => {
    clearIdleTimer();