Function isKilledExecError

packages/cli/src/browser/linuxDeps.ts:233–237

* True when a child-process error indicates the process was killed (e.g. by the * `timeout` option → SIGTERM), whose stdout is only a partial capture.

(err: unknown)

 * `timeout` option → SIGTERM), whose stdout is only a partial capture.
 */
function isKilledExecError(err: unknown): boolean {
  if (typeof err !== "object" || err === null) return false;
  const e = err as NodeJS.ErrnoException & { killed?: boolean; signal?: string | null };
  return e.killed === true || e.signal != null;
}

/** Extract captured stdout from a child-process error, if present, as a string. */
function execErrorStdout(err: unknown): string | undefined {