Function spawnPromise

tools/build.ts:290–299

(command: string, args: string[])

}

function spawnPromise(command: string, args: string[]) {
  return new Promise<void>((resolve, reject) => spawn(command, args, { stdio: 'inherit' }).on('close', code => {
    if (code === 0) {
      resolve()
    } else {
      reject('Build failed.');
    }
  })
  .on('error', reject));
}

async function compileSchematics() {
  await esbuild.build({