Function extractStream

packages/create-react-app/createReactApp.js:668–680

(stream, dest)

}

function extractStream(stream, dest) {
  return new Promise((resolve, reject) => {
    stream.pipe(
      unpack(dest, err => {
        if (err) {
          reject(err);
        } else {
          resolve(dest);
        }
      })
    );
  });
}

// Extract package name from tarball url or path.
function getPackageInfo(installPackage) {