dll.js

const path = require('path')
const webpack = require('webpack')
const del = require('del')

const Messager = require('./messager')
const messager = new Messager()

module.exports = function (config) {
  config = require('./core/common/common_config')(config, messager)

  const { projectPath, system } = config

  const { dll } = config.webpack || { }

  if (!dll) {
    messager.stop('dll config undefined')

    return void 0
  }

  del.sync(`${projectPath}/dll/**/*`, { force: true })

  const dllOptions = {
    mode: 'production',
    entry: dll,
    output: {
      filename: '[name].dll.js',
      path: path.resolve(projectPath, 'dll'),
      library: '_dll_[name]'
    },
    plugins: [
      new webpack.DllPlugin({
        name: '_dll_[name]',
        path: path.join(projectPath, 'dll', '[name].manifest.json')
      }),
      new webpack.BannerPlugin({
        banner: config.banner,
        raw: true
      })
    ],
    context: system === 'mac' ? projectPath : projectPath.pathWinNorm()
  }

  const compiler = webpack(dllOptions)

  compiler.run((error, stats) => {
    if (error) {
      messager.stop(`dll 打包错误: ${error.toString()}`)
    } else {
      const msg = stats.toString({
        colors: true,
        modules: false,
        children: false,
        chunks: false,
        chunkModules: false
      })

      if (stats.compilation.errors.length > 0) {
        messager.log(msg)

        messager.stop(`dll 打包错误`)
      } else {
        messager.success('构建完成')
      }
    }
  })
}