mcp-google-sheets

import { exec as execCallback, spawn } from 'node:child_process' import type { SpawnOptions } from 'node:child_process' import { promisify } from 'node:util' import treeKill from 'tree-kill' export const execPromise = promisify(execCallback) export async function spawnWithKill({ cmd, options = {}, printOutput, timeoutMs, }: SpawnWithKillParams): Promise<CommandOutput> { return new Promise((resolve, reject) => { const [command, ...args] = cmd.split(' ') const cp = spawn(command, args, { detached: true, shell: true, ...options, }) let stdout = '' let stderr = '' if (cp.stdout) { cp.stdout.on('data', data => { if (printOutput) process.stdout.write(data) stdout += data }) } if (cp.stderr) { cp.stderr.on('data', data => { if (printOutput) process.stderr.write(data) stderr += data }) } let finished = false let timeoutHandler: NodeJS.Timeout | undefined const finish = (err?: Error | null) => { if (finished) return finished = true if (timeoutHandler) clearTimeout(timeoutHandler) if (!cp.pid) { return err ? reject(err) : resolve({ stdout, stderr }) } treeKill(cp.pid, 'SIGKILL', () => { if (err) reject(err) else resolve({ stdout, stderr }) }) } if (timeoutMs && timeoutMs > 0) { timeoutHandler = setTimeout(() => { finish( new Error( `Timeout after ${timeoutMs}ms\nstdout: ${stdout}\nstderr: ${stderr}`, ), ) }, timeoutMs) } cp.on('error', err => finish(err)) cp.on('close', (code, signal) => { if (code !== 0) { return finish( new Error( `Exit ${code}${signal ? ` (signal ${signal})` : ''}\nstdout: ${stdout}\nstderr: ${stderr}`, ), ) } finish() }) }) } type SpawnWithKillParams = { cmd: string options?: SpawnOptions printOutput?: boolean timeoutMs?: number } export type CommandOutput = { stdout: string stderr: string }