vue.config.js常用基础配置留档

迈不过友情╰ 2022-11-13 11:19 196阅读 0赞

1.分享一个vue.config.js的基本配置，至少能让你的代码体积缩小2/3，嗯，就这样，复制急用

const CompressionPlugin = require('compression-webpack-plugin') // 代码压缩
    const UglifyJsPlugin = require('uglifyjs-webpack-plugin') // 去掉打印，注释等多余代码
    const { HashedModuleIdsPlugin } = require('webpack') // 只打包改变的文件
    const LodashModuleReplacementPlugin = require('lodash-webpack-plugin') //按需加载lodash
    const HardSourceWebpackPlugin = require('hard-source-webpack-plugin') // 开启构建缓存机制
    
    const isProd = process.env.NODE_ENV === 'production'
    const path = require('path')
    module.exports = {
      productionSourceMap: false,
      publicPath: './',
      outputDir: process.env.outputDir, // 生成文件的目录名称
    	parallel: require('os').cpus().length > 1 // cpu大于1格式开启多线程打包
      pluginOptions: {
        'style-resources-loader': {
          preProcessor: 'less',
          patterns: [
            // 这个里面就是公共css的地址
            path.resolve(__dirname, 'src/assets/styles/common.less'),
          ],
        },
      },
      configureWebpack: (config) => {
        const plugins = []
        // 打包生产时生效
        if (isProd) {
          plugins.push(
            new CompressionPlugin({
              filename: '[path][base].gz',
              algorithm: 'gzip',
              test: new RegExp('.(' + ['js', 'css'].join('|') + ')$'),
              threshold: 8192,
              minRatio: 0.8,
              deleteOriginalAssets: false,
            })
          ),
            plugins.push(
              new UglifyJsPlugin({
                uglifyOptions: {
                  parallel: true,
                  output: {
                    comments: false, // 去掉注释
                  },
                  warnings: false,
                  compress: {
                    drop_console: true,
                    drop_debugger: false,
                    pure_funcs: ['console.log'], //移除console
                  },
                },
              })
            ),
            // 开启分离js
            (config.optimization = {
              runtimeChunk: 'single',
              splitChunks: {
                chunks: 'all',
                maxInitialRequests: Infinity,
                minSize: 1000 * 60,
                cacheGroups: {
                  vendor: {
                    test: /[\\/]node_modules[\\/]/,
                    name(module) {
                      // 排除node_modules 然后吧 @ 替换为空 ,考虑到服务器的兼容
                      const packageName = module.context.match(
                        /[\\/]node_modules[\\/](.*?)([\\/]|$)/
                      )[1]
                      return `npm.${packageName.replace('@', '')}`
                    },
                  },
                },
              },
            })
    
          // 取消webpack警告的性能提示
          ;(config.performance = {
            hints: 'warning',
            //入口起点的最大体积
            maxEntrypointSize: 1000 * 500,
            //生成文件的最大体积
            maxAssetSize: 1000 * 1000,
            //只给出 js 文件的性能提示
            assetFilter: function (assetFilename) {
              return assetFilename.endsWith('.js')
            },
          }),
            (config.optimization = {
              splitChunks: {
                // 分割代码块
                cacheGroups: {
                  vendor: {
                    //第三方库抽离
                    chunks: 'all',
                    test: /node_modules/,
                    name: 'vendor',
                    minChunks: 1, //在分割之前，这个代码块最小应该被引用的次数
                    maxInitialRequests: 5,
                    minSize: 0, //大于0个字节
                    priority: 100, //权重
                  },
                  common: {
                    //公用模块抽离
                    chunks: 'all',
                    test: /[\\/]src[\\/]js[\\/]/,
                    name: 'common',
                    minChunks: 2, //在分割之前，这个代码块最小应该被引用的次数
                    maxInitialRequests: 5,
                    minSize: 0, //大于0个字节
                    priority: 60,
                  },
                  styles: {
                    //样式抽离
                    name: 'styles',
                    test: /\.(sa|sc|c|le)ss$/,
                    chunks: 'all',
                    enforce: true,
                  },
                  runtimeChunk: {
                    name: 'manifest',
                  },
                },
              },
            })
        }
        // 通用
        plugins.push(new HashedModuleIdsPlugin())
        // 开启构建缓存，除了首次构建，之后打包越来越快,小项目没必要，反而耗时
        plugins.push(new HardSourceWebpackPlugin())
    
        config.plugins = [...config.plugins, ...plugins]
      },
    
      chainWebpack: (config) => {
        config.module
          .rule('images')
          .use('image-webpack-loader')
          .loader('image-webpack-loader')
          .options({
            bypassOnDebug: true,
          })
          .end()
    
        // thread-loader
        config.module
          .rule('js')
          .test(/\.js$/)
          .use('thread-loader')
          .loader('thread-loader')
          .options({
            workers: 4,
            workerParallelJobs: 50,
            poolTimeout: 2000,
            poolParallelJobs: 50,
          })
          .end()
        //按需加载lodash
        if (process.env.NODE_ENV === 'production') {
          config.plugin('loadshReplace').use(new LodashModuleReplacementPlugin())
        }
      },
      // devServer: {
      //   disableHostCheck: true,
      //   proxy: {
      //     '/index.php': {
      //       target: 'http://106.55.173.177:8081/',
      //       pathRewrite: { '^/index.php': '' },
      //       changeOrigin: true,
      //       secure: false,
      //     },
      //   },
      // },
      transpileDependencies: ['vuetify'],
      // 公共代码抽离
    }