webpack常用插件总结篇|博客系列

new HtmlWebpackPlugin({
  filename: 'index.html', // 生成文件名
  template: path.join(process.cwd(), './index.html') // 模班文件
})

new CopyWebpackPlugin([
  {
    from: path.join(process.cwd(), './vendor/'),
    to: path.join(process.cwd(), './dist/'),
    ignore: ['*.json']
  }
])

module.exports = {
  plugins: [
    new ManifestPlugin()
  ]
}

module.exports = {
  plugins: [
    new AssetsPlugin()
  ]
}

// 清理目录
const pathsToClean = [
  'dist',
  'build'
]
 
// 清理参数
const cleanOptions = {
  exclude:  ['shared.js'], // 跳过文件
}
module.exports = {
  // ...
  plugins: [
    new CleanWebpackPlugin(pathsToClean, cleanOptions)
  ]
}

module.exports = {
  plugins: [
    new CompressionPlugin()
  ]
}

module.exports = {
  //...
  plugins: [
    new ProgressBarPlugin()
  ]
}

new webpack.ProvidePlugin({
  $: 'jquery',
})

new webpack.DefinePlugin({
  'process.env': {
    NODE_ENV: JSON.stringify(process.env.NODE_ENV)
  }
})

const ExtractTextPlugin = require("extract-text-webpack-plugin");
 
module.exports = {
  module: {
    rules: [
      {
        test: /\.css$/,
        use: ExtractTextPlugin.extract({
          fallback: "style-loader",
          use: "css-loader"
        })
      }
    ]
  },
  plugins: [
    new ExtractTextPlugin("styles.css"),
  ]
}

const MiniCssExtractPlugin = require("mini-css-extract-plugin");
module.exports = {
    module: {
    rules: [
      {
        test: /\.css$/,
        use: [
          {
            loader: MiniCssExtractPlugin.loader,
            options: {
              publicPath: '/'  // chunk publicPath
            }
          },
          "css-loader"
        ]
      }
    ]
  },
  plugins: [
    new MiniCssExtractPlugin({
      filename: "[name].css", // 主文件名
      chunkFilename: "[id].css"  // chunk文件名
    })
  ]
}

new webpack.IgnorePlugin(/^\.\/locale$/, /moment$/)

module.exports = {
  //...
  optimization: {
    minimizer: [new UglifyJsPlugin({
      cache: true,   // 开启缓存
      parallel: true, // 开启多线程编译
      sourceMap: true,  // 是否sourceMap
      uglifyOptions: {  // 丑化参数
        comments: false,
        warnings: false,
        compress: {
          unused: true,
          dead_code: true,
          collapse_vars: true,
          reduce_vars: true
        },
        output: {
          comments: false
        }
      }
    }]
  }
};

module.exports = {
  //...
  optimization: {
    minimizer: [new OptimizeCssAssetsPlugin({
      cssProcessor: require('cssnano'),   // css 压缩优化器
      cssProcessorOptions: { discardComments: { removeAll: true } } // 去除所有注释
    })]
  }
};

var WebpackMd5Hash = require('webpack-md5-hash');
 
module.exports = {
  // ...
  output: {
    //...
    chunkFilename: "[chunkhash].[id].chunk.js"
  },
  plugins: [
    new WebpackMd5Hash()
  ]
};

module.exports = {
  //...
  optimization: {
    splitChunks: {
      chunks: 'async', // 异步加载chunk
      minSize: 30000,
      maxSize: 0,
      minChunks: 1,
      maxAsyncRequests: 5,
      maxInitialRequests: 3,
      automaticNameDelimiter: '~', // 文件名中chunk分隔符
      name: true,
      cacheGroups: {
        vendors: {
          test: /[\\/]node_modules[\\/]/,  // 
          priority: -10
        },
        default: {
          minChunks: 2,  // 最小的共享chunk数
          priority: -20,
          reuseExistingChunk: true
        }
      }
    }
  }
};

const output = {
  filename: '[name].js',
  library: '[name]_library',
  path: './vendor/'
}

module.exports = {
  entry: {
    vendor: ['react', 'react-dom']  // 我们需要事先编译的模块，用entry表示
  },
  output: output,
  plugins: [
    new webpack.DllPlugin({  // 使用dllPlugin
      path: path.join(output.path, `${output.filename}.json`),
      name: output.library // 全局变量名， 也就是 window 下 的 [output.library]
    })
  ]
}