webpack5项目搭建React-Cli(配置优化)

Posted 2022-12-21 天界程序员

step1–修改UI组件库的主题颜色

const getStyleLoaders = (preProcessor) => 
  return [
    isProduction ? MiniCssExtractPlugin.loader : "style-loader",
    "css-loader",
    
      loader: "postcss-loader",
      options: 
        postcssOptions: 
          plugins: [
            "postcss-preset-env",
          ],
        ,
      ,
    ,
    preProcessor && 
      loader: preProcessor,
      options:
        preProcessor === "less-loader"
          ? 
              // antd的自定义主题
              lessOptions: 
                modifyVars: 
                  // 其他主题色：https://ant.design/docs/react/customize-theme-cn
                  "@primary-color": "#1DA57A", // 全局主色
                ,
                javascriptEnabled: true,
              ,
            
          : ,
    ,
  ].filter(Boolean);
;

注意：当你引入样式的时候一定要引入less文件，否则不生效

//main.js
import 'xxx.less'

step2–对依赖包里面的chunk打包文件进行分组打包

splitChunks: 
      chunks: "all",
      cacheGroups: 
        // layouts通常是admin项目的主体布局组件，所有路由组件都要使用的
        // 可以单独打包，从而复用
        // 如果项目中没有，请删除
        layouts: 
          name: "layouts",
          test: path.resolve(__dirname, "../src/layouts"),
          priority: 40,
        ,
        // 如果项目中使用antd，此时将所有node_modules打包在一起，那么打包输出文件会比较大。
        // 所以我们将node_modules中比较大的模块单独打包，从而并行加载速度更好
        // 如果项目中没有，请删除
        antd: 
          name: "chunk-antd",
          test: /[\\\\/]node_modules[\\\\/]antd(.*)/,
          priority: 30,
        ,
        // 将react相关的库单独打包，减少node_modules的chunk体积。
        react: 
          name: "react",
          test: /[\\\\/]node_modules[\\\\/]react(.*)?[\\\\/]/,
          chunks: "initial",
          priority: 20,
        ,
        libs: 
          name: "chunk-libs",
          test: /[\\\\/]node_modules[\\\\/]/,
          priority: 10, // 权重最低，优先考虑前面内容
          chunks: "initial",
        ,
      ,
    ,

step3–关闭性能分析提升打包速度

performance: false, // 关闭性能分析，提示速度

step4–现阶段详细配置代码

const path = require("path");
const ESLintWebpackPlugin = require("eslint-webpack-plugin");
const htmlWebpackPlugin = require("html-webpack-plugin");
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
const CssMinimizerPlugin = require("css-minimizer-webpack-plugin");
const TerserWebpackPlugin = require("terser-webpack-plugin");
const ImageMinimizerPlugin = require("image-minimizer-webpack-plugin");
const ReactRefreshWebpackPlugin = require("@pmmmwh/react-refresh-webpack-plugin");
const CopyPlugin = require("copy-webpack-plugin");

const isProduction = process.env.NODE_ENV === "production";

const getStyleLoaders = (preProcessor) => 
  return [
    isProduction ? MiniCssExtractPlugin.loader : "style-loader",
    "css-loader",
    
      loader: "postcss-loader",
      options: 
        postcssOptions: 
          plugins: [
            "postcss-preset-env",
          ],
        ,
      ,
    ,
    preProcessor && 
      loader: preProcessor,
      options:
        preProcessor === "less-loader"
          ? 
              // antd的自定义主题
              lessOptions: 
                modifyVars: 
                  // 其他主题色：https://ant.design/docs/react/customize-theme-cn
                  "@primary-color": "#1DA57A", // 全局主色
                ,
                javascriptEnabled: true,
              ,
            
          : ,
    ,
  ].filter(Boolean);
;

module.exports = 
  entry: "./src/main.js",
  output: 
    path: isProduction ? path.resolve(__dirname, "../dist") : undefined,
    filename: isProduction
      ? "static/js/[name].[contenthash:10].js"
      : "static/js/[name].js",
    chunkFilename: isProduction
      ? "static/js/[name].[contenthash:10].chunk.js"
      : "static/js/[name].chunk.js",
    assetModuleFilename: "static/js/[hash:10][ext][query]",
    clean: true,
  ,
  module: 
    rules: [
      
        oneOf: [
          
            test: /\\.css$/,
            use: getStyleLoaders(),
          ,
          
            test: /\\.less$/,
            use: getStyleLoaders("less-loader"),
          ,
          
            test: /\\.s[ac]ss$/,
            use: getStyleLoaders("sass-loader"),
          ,
          
            test: /\\.styl$/,
            use: getStyleLoaders("stylus-loader"),
          ,
          
            test: /\\.(png|jpe?g|gif|svg)$/,
            type: "asset",
            parser: 
              dataUrlCondition: 
                maxSize: 10 * 1024,
              ,
            ,
          ,
          
            test: /\\.(ttf|woff2?)$/,
            type: "asset/resource",
          ,
          
            test: /\\.(jsx|js)$/,
            include: path.resolve(__dirname, "../src"),
            loader: "babel-loader",
            options: 
              cacheDirectory: true,
              cacheCompression: false,
              plugins: [
                // "@babel/plugin-transform-runtime",  // presets中包含了
                !isProduction && "react-refresh/babel",
              ].filter(Boolean),
            ,
          ,
        ],
      ,
    ],
  ,
  plugins: [
    new ESLintWebpackPlugin(
      extensions: [".js", ".jsx"],
      context: path.resolve(__dirname, "../src"),
      exclude: "node_modules",
      cache: true,
      cacheLocation: path.resolve(
        __dirname,
        "../node_modules/.cache/.eslintcache"
      ),
    ),
    new HtmlWebpackPlugin(
      template: path.resolve(__dirname, "../public/index.html"),
    ),
    isProduction &&
      new MiniCssExtractPlugin(
        filename: "static/css/[name].[contenthash:10].css",
        chunkFilename: "static/css/[name].[contenthash:10].chunk.css",
      ),
    !isProduction && new ReactRefreshWebpackPlugin(),
    // 将public下面的资源复制到dist目录去（除了index.html）
    new CopyPlugin(
      patterns: [
        
          from: path.resolve(__dirname, "../public"),
          to: path.resolve(__dirname, "../dist"),
          toType: "dir",
          noErrorOnMissing: true, // 不生成错误
          globOptions: 
            // 忽略文件
            ignore: ["**/index.html"],
          ,
          info: 
            // 跳过terser压缩js
            minimized: true,
          ,
        ,
      ],
    ),
  ].filter(Boolean),
  optimization: 
    minimize: isProduction,
    // 压缩的操作
    minimizer: [
      // 压缩css
      new CssMinimizerPlugin(),
      // 压缩js
      new TerserWebpackPlugin(),
      // 压缩图片
      new ImageMinimizerPlugin(
        minimizer: 
          implementation: ImageMinimizerPlugin.imageminGenerate,
          options: 
            plugins: [
              ["gifsicle",  interlaced: true ],
              ["jpegtran",  progressive: true ],
              ["optipng",  optimizationLevel: 5 ],
              [
                "svgo",
                
                  plugins: [
                    "preset-default",
                    "prefixIds",
                    
                      name: "sortAttrs",
                      params: 
                        xmlnsOrder: "alphabetical",
                      ,
                    ,
                  ],
                ,
              ],
            ],
          ,
        ,
      ),
    ],
    // 代码分割配置
    splitChunks: 
      chunks: "all",
      cacheGroups: 
        // layouts通常是admin项目的主体布局组件，所有路由组件都要使用的
        // 可以单独打包，从而复用
        // 如果项目中没有，请删除
        layouts: 
          name: "layouts",
          test: path.resolve(__dirname, "../src/layouts"),
          priority: 40,
        ,
        // 如果项目中使用antd，此时将所有node_modules打包在一起，那么打包输出文件会比较大。
        // 所以我们将node_modules中比较大的模块单独打包，从而并行加载速度更好
        // 如果项目中没有，请删除
        antd: 
          name: "chunk-antd",
          test: /[\\\\/]node_modules[\\\\/]antd(.*)/,
          priority: 30,
        ,
        // 将react相关的库单独打包，减少node_modules的chunk体积。
        react: 
          name: "react",
          test: /[\\\\/]node_modules[\\\\/]react(.*)?[\\\\/]/,
          chunks: "initial",
          priority: 20,
        ,
        libs: 
          name: "chunk-libs",
          test: /[\\\\/]node_modules[\\\\/]/,
          priority: 10, // 权重最低，优先考虑前面内容
          chunks: "initial",
        ,
      ,
    ,
    runtimeChunk: 
      name: (entrypoint) => `runtime~$entrypoint.name`,
    ,
  ,
  resolve: 
    extensions: [".jsx", ".js", ".json"],
  ,
  devServer: 
    open: true,
    host: "localhost",
    port: 3000,
    hot: true,
    compress: true,
    historyApiFallback: true,
  ,
  mode: isProduction ? "production" : "development",
  devtool: isProduction ? "source-map" : "cheap-module-source-map",
  performance: false, // 关闭性能分析，提示速度
;