spown !npm

Spawn child process.

Install

``sh
$ yarn add spown
`

Usage

`ts
type TSpawnChildProcessOptions = {
argv0?: string,
cwd?: string,
env?: NodeJS.ProcessEnv,
stdin?: Stream | null,
stdout?: Stream | null,
stderr?: Stream | null,
uid?: number,
gid?: number,
serialization?: 'json' | 'advanced'
}

const spawnChildProcess: (command: string, options?: TSpawnChildProcessOptions) => Promise<{
stdout: string | null,
stderr: string | null
}>
`

`ts
type TSpawnChildProcessStreamOptions = {
argv0?: string,
cwd?: string,
env?: NodeJS.ProcessEnv,
stdin?: Stream | null,
stdout?: Stream | null,
stderr?: Stream | null,
shouldCreateIpcChannel?: boolean,
uid?: number,
gid?: number,
serialization?: 'json' | 'advanced'
}

const spawnChildProcessStream: (command: string, options?: TSpawnChildProcessStreamOptions) => ChildProcess
`

`ts
import { spawnChildProcess, spawnChildProcessStream } from 'spown'
import { unchunkString } from 'unchunk'

console.log(
await spawnChildProcess('ls /')
)
// {
// stdout: 'Applications Library System …',
// stderr: ''
// }

try {
await spawnChildProcess('ls /foo')
} catch (e) {
console.error(e.message)
// ls: cannot access '/foo': No such file or directory
console.error(e.exitCode)
// 2
}

const childProcess = spawnChildProcessStream('ls /foo')
const stderr = await unchunkString(childProcess.stderr)

console.log(stderr)
// ls: cannot access '/foo': No such file or directory
``