text: 'use strict'
  require('./check-versions')()
  
  process.env.NODE_ENV = 'production'
  
  const ora = require('ora')
  const rm = require('rimraf')
  const path = require('path')
  const chalk = require('chalk')
  const webpack = require('webpack')
  const config = require('../config')
  const webpackConfig = require('./webpack.prod.conf')
  
  const spinner = ora('building for production...')
  spinner.start()
  
  rm(path.join(config.build.assetsRoot, config.build.assetsSubDirectory), err => {
    if (err) throw err
  })
  
  webpack(webpackConfig, (err, stats) => {
    if (err) throw err
    spinner.stop()
  
    process.stdout.write(
      stats.toString({
        colors: true,
        modules: false,
        children: false,
        chunks: false,
        chunkModules: false
      }) + '\n\n'
    )
  
    if (stats.hasErrors()) {
      console.log(chalk.red('  Build failed with errors.\n'))
      process.exit(1)
    }
  
    console.log(chalk.cyan('  Build complete.\n'))
    console.log(
      chalk.yellow(
        '  Tip: built files are meant to be served over an HTTP server.\n' +
          "  Opening index.html over file:// won't work.\n"
      )
    )
    process.exit(0)
  })
  