Function finish

pkg/npm/install.js:116–122

(err, result)

    let timer = null;

    function finish(err, result) {
      if (settled) return;
      settled = true;
      if (timer) clearTimeout(timer);
      if (err) reject(err);
      else resolve(result);
    }

    const req = https.get(url, (res) => {
      response = res;