cryptgeon/packages/cli/src/stdin.ts

25 lines
731 B
TypeScript

export function getStdin(timeout: number = 10): Promise<string> {
return new Promise<string>((resolve, reject) => {
// Store the data from stdin in a buffer
let buffer = ''
let t: NodeJS.Timeout
const dataHandler = (d: Buffer) => (buffer += d.toString())
const endHandler = () => {
clearTimeout(t)
resolve(buffer.trim())
}
// Stop listening for data after the timeout, otherwise hangs indefinitely
t = setTimeout(() => {
process.stdin.removeListener('data', dataHandler)
process.stdin.removeListener('end', endHandler)
process.stdin.pause()
resolve('')
}, timeout)
process.stdin.on('data', dataHandler)
process.stdin.on('end', endHandler)
})
}