Intlayer

//------------------------------------------------------------------------------ // Requirements //------------------------------------------------------------------------------ import type { SpawnOptions } from 'node:child_process'; import { type ChildProcess, spawn as nodeSpawn } from 'node:child_process'; import { list } from './pidTree'; //------------------------------------------------------------------------------ // Helpers //------------------------------------------------------------------------------ /** * Kills the new process and its sub processes. */ const createKillHandler = ( child: ChildProcess ): ((signal?: NodeJS.Signals | number) => boolean) => { return (signal?: NodeJS.Signals | number): boolean => { if (!child.pid) return false; // Try using list if available try { list(child.pid, { root: true }, (err: Error | null, pids?: number[]) => { if (err) { // Fallback to process group kill try { process.kill(-child.pid!, signal ?? 'SIGTERM'); } catch { // ignore } return; } if (!pids) { // Fallback to process group kill if no pids returned try { process.kill(-child.pid!, signal ?? 'SIGTERM'); } catch { // ignore } return; } for (const pid of pids) { try { process.kill(pid, signal ?? 'SIGTERM'); } catch (_err) { // ignore. } } }); } catch { // pidtree not available, use process group kill try { process.kill(-child.pid, signal ?? 'SIGTERM'); } catch { // ignore } } return true; }; }; //------------------------------------------------------------------------------ // Public Interface //------------------------------------------------------------------------------ /** * Launches a new process with the given command. * This is almost same as `child_process.spawn`. * * This returns a `ChildProcess` instance. * `kill` method of the instance kills the new process and its sub processes. * * @param command - The command to run. * @param args - List of string arguments. * @param options - Options. * @returns A ChildProcess instance of new process. * @private */ export const spawnPosix = ( command: string, args: string[], options: SpawnOptions ): ChildProcess => { const child = nodeSpawn(command, args, options); child.kill = createKillHandler(child); return child; };