webpack.config.prod.js

const path = require('path')
const webpack = require('webpack')
const autoprefixer = require('autoprefixer')
const HtmlWebpackPlugin = require('html-webpack-plugin')
const ExtractTextPlugin = require("extract-text-webpack-plugin")
const themeConfig = require('./src/theme')

module.exports = {
  entry: {
    main: './src/index.js',//入口文件
    vendor: [
      'react',
      'react-dom'
    ]//分离第三方库
  },
  output: {
    filename: '[name].[chunkhash:5].js',//打包后的文件名
    chunkFilename: '[name].[chunkhash:5].js',
    path: path.join(__dirname, 'dist'),//打包后的文件存储位置
    publicPath: '/'
  },

  // resolve: {
  //   modules: ['node_modules'],
  //   extensions: ['.web.js', '.jsx', '.js', '.json']
  // },

  //devtool: 'cheap-module-eval-source-map',//生产环境需关闭该功能,否则打包后体积会变大

  module: {
    rules: [
      {
        test: /\.js$/,
        use: 'babel-loader',//编译js文件的loader,
        exclude: /node_modules/
      },
      {
        test: /\.css$/,
        use: ExtractTextPlugin.extract({
          fallback: 'style-loader',
          use: ['css-loader?minimize=true&modules&localIdentName=[local]-[hash:base64:5]', 'postcss-loader']
        })
      },
      {
        test: /\.less$/,
        include: /node_modules/,
        use: ExtractTextPlugin.extract({
          fallback: 'style-loader',
          use: ['css-loader?minimize=true', 'postcss-loader', `less-loader?{"modifyVars":${JSON.stringify(themeConfig)}}`]
        })
      },
      {
        test: /\.less$/,
        exclude: /node_modules/,
        use: ExtractTextPlugin.extract({
          fallback: 'style-loader',
          use: ['css-loader?minimize=true&modules&localIdentName=[local]-[hash:base64:5]', 'postcss-loader', 'less-loader']
        })
      },
      {
        test: /\.(jpe?g|png|gif|mp4|webm|woff|otf|webp|svg)$/,
        use: 'url-loader'
      }
    ],
  },
  plugins: [
    new webpack.NoEmitOnErrorsPlugin(),//报错时不退出webpack进程
    new webpack.DefinePlugin({
      'process.env.NODE_ENV': JSON.stringify('production')
    }),
    new webpack.optimize.UglifyJsPlugin({//压缩文件
      compress: { warnings: false }
    }),
    new HtmlWebpackPlugin({//自动生成html
      template: './src/views/index.html'
    }),
    new ExtractTextPlugin({
      filename:(getPath) => {
        return getPath('[name].css').replace('dist/js', 'css')
      },
      allChunks:true
    }),//提取css文件
    new webpack.LoaderOptionsPlugin({
      options: {
        postcss: () => [autoprefixer],//css前缀补全以及兼容
        url: { limit: 10240 }
      }
    }),
    new webpack.optimize.CommonsChunkPlugin({
      names: ['vendor', 'manifest'] // 指定公共 bundle 的名字,加manifest防止vendor的hash值改变。
    })
  ],
}