Function signalTree

e2e/setup/boot.ts:128–135

(child: ChildProcess, signal: NodeJS.Signals)

  // Signal the process GROUP (negative pid); fall back to the direct child
  // when the group is already gone.
  const signalTree = (child: ChildProcess, signal: NodeJS.Signals) => {
    if (child.pid === undefined || child.exitCode !== null) return;
    try {
      process.kill(-child.pid, signal);
    } catch {
      child.kill(signal);
    }
  };

  const exited = (child: ChildProcess): Promise<void> =>
    child.exitCode !== null || child.signalCode !== null