Function onSpawn

packages/kaos/src/local.ts:890–893

()

function waitForSpawn(child: ChildProcess): Promise<void> {
  return new Promise((resolve, reject) => {
    const onSpawn = (): void => {
      child.off('error', onError);
      resolve();
    };
    const onError = (err: Error): void => {
      child.off('spawn', onSpawn);
      reject(err);