import ora from 'ora' import webpack from 'webpack' import config from './webpack.package.config' const spinner = ora('Building …') export default new Promise((resolve, reject) => { spinner.start() webpack(config, (error, stats) => { if (error) { return reject(error) } if (stats.hasErrors()) { process.stdout.write(stats.toString() + "\n"); return reject(new Error('Build failed with errors.')) } return resolve('Build complete.') }) }) .then(success => spinner.succeed(success)) .catch(error => spinner.fail(error))