| import { |
| type ChildProcess, |
| type SpawnOptions, |
| spawn, |
| } from "node:child_process"; |
| import BufferList from "bl"; |
|
|
| export const spawnAsync = ( |
| command: string, |
| args?: string[] | undefined, |
| onData?: (data: string) => void, |
| options?: SpawnOptions, |
| ): Promise<BufferList> & { child: ChildProcess } => { |
| const child = spawn(command, args ?? [], options ?? {}); |
| const stdout = child.stdout ? new BufferList() : new BufferList(); |
| const stderr = child.stderr ? new BufferList() : new BufferList(); |
|
|
| if (child.stdout) { |
| child.stdout.on("data", (data) => { |
| stdout.append(data); |
| if (onData) { |
| onData(data.toString()); |
| } |
| }); |
| } |
| if (child.stderr) { |
| child.stderr.on("data", (data) => { |
| stderr.append(data); |
| if (onData) { |
| onData(data.toString()); |
| } |
| }); |
| } |
|
|
| const promise = new Promise<BufferList>((resolve, reject) => { |
| child.on("error", reject); |
|
|
| child.on("close", (code) => { |
| if (code === 0) { |
| resolve(stdout); |
| } else { |
| const err = new Error(`${stderr.toString()}`) as Error & { |
| code: number; |
| stderr: BufferList; |
| stdout: BufferList; |
| }; |
| err.code = code || -1; |
| err.stderr = stderr; |
| err.stdout = stdout; |
| reject(err); |
| } |
| }); |
| }) as Promise<BufferList> & { child: ChildProcess }; |
|
|
| promise.child = child; |
|
|
| return promise; |
| }; |
|
|
