30 lines
849 B
TypeScript
30 lines
849 B
TypeScript
import { spawn, ChildProcess } from 'child_process'
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export async function exec(cmd: string, args: Array<string> = []) {
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const child = spawn(cmd, args, { shell: true })
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redirectOutputFor(child)
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await waitFor(child)
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}
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function redirectOutputFor(child: ChildProcess) {
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const printStdout = (data: Buffer) => {
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process.stdout.write(data.toString())
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}
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const printStderr = (data: Buffer) => {
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process.stderr.write(data.toString())
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}
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child.stdout && child.stdout.on('data', printStdout)
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child.stderr && child.stderr.on('data', printStderr)
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child.once('close', () => {
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child.stdout && child.stdout.off('data', printStdout)
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child.stderr && child.stderr.off('data', printStderr)
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})
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}
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async function waitFor(child: ChildProcess) {
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return new Promise<void>(resolve => {
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child.once('close', () => resolve())
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})
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}
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