webpack.lib.js

const path = require('path')
const os = require('os')
const webpack = require('webpack')
const merge = require('webpack-merge')
const common = require('./webpack.common.js')
const OptimizeCSSAssetsPlugin = require('optimize-css-assets-webpack-plugin')
const UglifyJsPlugin = require('uglifyjs-webpack-plugin')

module.exports = merge(common, {
  mode: 'production',
  entry: {
    'our-ui': path.join(__dirname, './src/index.js')
  },
  output: {
    path: path.join(__dirname, './lib'),
    filename: '[name].min.js',
    chunkFilename: '[id].chunk.[hash].js',
    library: '[name]',
    libraryTarget: 'umd',
    libraryExport: 'default'
    // umdNamedDefine: true
  },
  devtool: 'source-map',
  optimization: {
    minimizer: [
      new OptimizeCSSAssetsPlugin({}),
      new UglifyJsPlugin({
        sourceMap: false,
        parallel: os.cpus().length, // 并发数
        uglifyOptions: {
          output: {
            comments: false,
          }
        }
      })
    ]
  }
})

module.exports.plugins = (module.exports.plugins || []).concat([
  new webpack.DefinePlugin({
    'process.env': {
      NODE_ENV: '"production"'
    }
  }),
  new webpack.LoaderOptionsPlugin({
    minimize: true
  })
])