Function updateProcessLockPort

packages/server/src/process-lock.ts:179–223

(opts: {
  lockName: LockName;
  lockDir: string;
  port: number;
})

}

export function updateProcessLockPort(opts: {
  lockName: LockName;
  lockDir: string;
  port: number;
}): void {
  const { lockName, lockDir, port } = opts;
  const logPrefix = `[${lockName}-lock]`;
  const lockPath = lockFilePath(lockDir, lockName);

  if (!existsSync(lockPath)) {
    console.warn(`${logPrefix} Lock file missing at ${lockPath} during port update — skipping`);
    return;
  }

  let existing: ProcessLockMetadata;
  try {
    const parsed = JSON.parse(readFileSync(lockPath, 'utf-8'));
    if (
      !parsed ||
      typeof parsed !== 'object' ||
      !isValidLockPid((parsed as { pid?: unknown }).pid)
    ) {
      console.warn(`${logPrefix} Corrupt lock at ${lockPath} during port update — skipping`);
      return;
    }
    existing = parsed as ProcessLockMetadata;
  } catch {
    console.warn(`${logPrefix} Unreadable lock at ${lockPath} during port update — skipping`);
    return;
  }
  if (existing.pid !== process.pid) return;
  if (typeof existing.hostname === 'string' && existing.hostname !== hostname()) return;

  existing.port = port;
  try {
    writeFileSync(lockPath, JSON.stringify(existing, null, 2), {
      encoding: 'utf-8',
      mode: 0o600,
    });
  } catch (err) {
    console.warn(
      `${logPrefix} Failed to update port in ${lockPath}: ${err instanceof Error ? err.message : String(err)}`,
    );
  }
}

export function readProcessLock(opts: {
  lockName: LockName;