Function waitForProcessToDie

cli/src/utils/process.ts:121–144

* Waits for a process to die, escalating to SIGKILL if SIGTERM doesn't work.

(pid: number, force: boolean)

 * Waits for a process to die, escalating to SIGKILL if SIGTERM doesn't work.
 */
async function waitForProcessToDie(pid: number, force: boolean): Promise<void> {
  const maxWait = 2000;
  const pollInterval = 20;
  let waited = 0;

  while (isProcessAlive(pid) && waited < maxWait) {
    await new Promise(r => setTimeout(r, pollInterval));
    waited += pollInterval;
  }

  // If SIGTERM didn't work and we haven't tried SIGKILL yet, escalate
  if (!force && isProcessAlive(pid)) {
    try {
      process.kill(pid, 'SIGKILL');
    } catch {
      return;
    }
    waited = 0;
    while (isProcessAlive(pid) && waited < 1000) {
      await new Promise(r => setTimeout(r, pollInterval));
      waited += pollInterval;
    }
  }
}

export async function killProcessByChildProcess(
  child: ChildProcess,