Webpack5入门到原理20：Vue 脚手架搭建-Toy模板网

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开发模式配置

// webpack.dev.js
const path = require("path");
const ESLintWebpackPlugin = require("eslint-webpack-plugin");
const HtmlWebpackPlugin = require("html-webpack-plugin");
const { VueLoaderPlugin } = require("vue-loader");
const { DefinePlugin } = require("webpack");
const CopyPlugin = require("copy-webpack-plugin");

const getStyleLoaders = (preProcessor) => {
  return [
    "vue-style-loader",
    "css-loader",
    {
      loader: "postcss-loader",
      options: {
        postcssOptions: {
          plugins: [
            "postcss-preset-env", // 能解决大多数样式兼容性问题
          ],
        },
      },
    },
    preProcessor,
  ].filter(Boolean);
};

module.exports = {
  entry: "./src/main.js",
  output: {
    path: undefined,
    filename: "static/js/[name].js",
    chunkFilename: "static/js/[name].chunk.js",
    assetModuleFilename: "static/js/[hash:10][ext][query]",
  },
  module: {
    rules: [
      {
        // 用来匹配 .css 结尾的文件
        test: /\.css$/,
        // use 数组里面 Loader 执行顺序是从右到左
        use: getStyleLoaders(),
      },
      {
        test: /\.less$/,
        use: getStyleLoaders("less-loader"),
      },
      {
        test: /\.s[ac]ss$/,
        use: getStyleLoaders("sass-loader"),
      },
      {
        test: /\.styl$/,
        use: getStyleLoaders("stylus-loader"),
      },
      {
        test: /\.(png|jpe?g|gif|svg)$/,
        type: "asset",
        parser: {
          dataUrlCondition: {
            maxSize: 10 * 1024, // 小于10kb的图片会被base64处理
          },
        },
      },
      {
        test: /\.(ttf|woff2?)$/,
        type: "asset/resource",
      },
      {
        test: /\.(jsx|js)$/,
        include: path.resolve(__dirname, "../src"),
        loader: "babel-loader",
        options: {
          cacheDirectory: true,
          cacheCompression: false,
          plugins: [
            // "@babel/plugin-transform-runtime" // presets中包含了
          ],
        },
      },
      // vue-loader不支持oneOf
      {
        test: /\.vue$/,
        loader: "vue-loader", // 内部会给vue文件注入HMR功能代码
        options: {
          // 开启缓存
          cacheDirectory: path.resolve(
            __dirname,
            "node_modules/.cache/vue-loader"
          ),
        },
      },
    ],
  },
  plugins: [
    new ESLintWebpackPlugin({
      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"),
    }),
    new CopyPlugin({
      patterns: [
        {
          from: path.resolve(__dirname, "../public"),
          to: path.resolve(__dirname, "../dist"),
          toType: "dir",
          noErrorOnMissing: true,
          globOptions: {
            ignore: ["**/index.html"],
          },
          info: {
            minimized: true,
          },
        },
      ],
    }),
    new VueLoaderPlugin(),
    // 解决页面警告
    new DefinePlugin({
      __VUE_OPTIONS_API__: "true",
      __VUE_PROD_DEVTOOLS__: "false",
    }),
  ],
  optimization: {
    splitChunks: {
      chunks: "all",
    },
    runtimeChunk: {
      name: (entrypoint) => `runtime~${entrypoint.name}`,
    },
  },
  resolve: {
    extensions: [".vue", ".js", ".json"], // 自动补全文件扩展名，让vue可以使用
  },
  devServer: {
    open: true,
    host: "localhost",
    port: 3000,
    hot: true,
    compress: true,
    historyApiFallback: true, // 解决vue-router刷新404问题
  },
  mode: "development",
  devtool: "cheap-module-source-map",
};

生产模式配置

// webpack.prod.js
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 { VueLoaderPlugin } = require("vue-loader");
const { DefinePlugin } = require("webpack");

const getStyleLoaders = (preProcessor) => {
  return [
    MiniCssExtractPlugin.loader,
    "css-loader",
    {
      loader: "postcss-loader",
      options: {
        postcssOptions: {
          plugins: [
            "postcss-preset-env", // 能解决大多数样式兼容性问题
          ],
        },
      },
    },
    preProcessor,
  ].filter(Boolean);
};

module.exports = {
  entry: "./src/main.js",
  output: {
    path: undefined,
    filename: "static/js/[name].[contenthash:10].js",
    chunkFilename: "static/js/[name].[contenthash:10].chunk.js",
    assetModuleFilename: "static/js/[hash:10][ext][query]",
    clean: true,
  },
  module: {
    rules: [
      {
        // 用来匹配 .css 结尾的文件
        test: /\.css$/,
        // use 数组里面 Loader 执行顺序是从右到左
        use: getStyleLoaders(),
      },
      {
        test: /\.less$/,
        use: getStyleLoaders("less-loader"),
      },
      {
        test: /\.s[ac]ss$/,
        use: getStyleLoaders("sass-loader"),
      },
      {
        test: /\.styl$/,
        use: getStyleLoaders("stylus-loader"),
      },
      {
        test: /\.(png|jpe?g|gif|svg)$/,
        type: "asset",
        parser: {
          dataUrlCondition: {
            maxSize: 10 * 1024, // 小于10kb的图片会被base64处理
          },
        },
      },
      {
        test: /\.(ttf|woff2?)$/,
        type: "asset/resource",
      },
      {
        test: /\.(jsx|js)$/,
        include: path.resolve(__dirname, "../src"),
        loader: "babel-loader",
        options: {
          cacheDirectory: true,
          cacheCompression: false,
          plugins: [
            // "@babel/plugin-transform-runtime" // presets中包含了
          ],
        },
      },
      // vue-loader不支持oneOf
      {
        test: /\.vue$/,
        loader: "vue-loader", // 内部会给vue文件注入HMR功能代码
        options: {
          // 开启缓存
          cacheDirectory: path.resolve(
            __dirname,
            "node_modules/.cache/vue-loader"
          ),
        },
      },
    ],
  },
  plugins: [
    new ESLintWebpackPlugin({
      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"),
    }),
    new CopyPlugin({
      patterns: [
        {
          from: path.resolve(__dirname, "../public"),
          to: path.resolve(__dirname, "../dist"),
          toType: "dir",
          noErrorOnMissing: true,
          globOptions: {
            ignore: ["**/index.html"],
          },
          info: {
            minimized: true,
          },
        },
      ],
    }),
    new MiniCssExtractPlugin({
      filename: "static/css/[name].[contenthash:10].css",
      chunkFilename: "static/css/[name].[contenthash:10].chunk.css",
    }),
    new VueLoaderPlugin(),
    new DefinePlugin({
      __VUE_OPTIONS_API__: "true",
      __VUE_PROD_DEVTOOLS__: "false",
    }),
  ],
  optimization: {
    // 压缩的操作
    minimizer: [
      new CssMinimizerPlugin(),
      new TerserWebpackPlugin(),
      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",
                      },
                    },
                  ],
                },
              ],
            ],
          },
        },
      }),
    ],
    splitChunks: {
      chunks: "all",
    },
    runtimeChunk: {
      name: (entrypoint) => `runtime~${entrypoint.name}`,
    },
  },
  resolve: {
    extensions: [".vue", ".js", ".json"],
  },
  mode: "production",
  devtool: "source-map",
};

其他配置

package.json

{
  "name": "vue-cli",
  "version": "1.0.0",
  "description": "",
  "main": "main.js",
  "scripts": {
    "start": "npm run dev",
    "dev": "cross-env NODE_ENV=development webpack serve --config ./config/webpack.dev.js",
    "build": "cross-env NODE_ENV=production webpack --config ./config/webpack.prod.js"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "devDependencies": {
    "@babel/core": "^7.17.10",
    "@babel/eslint-parser": "^7.17.0",
    "@vue/cli-plugin-babel": "^5.0.4",
    "babel-loader": "^8.2.5",
    "copy-webpack-plugin": "^10.2.4",
    "cross-env": "^7.0.3",
    "css-loader": "^6.7.1",
    "css-minimizer-webpack-plugin": "^3.4.1",
    "eslint-plugin-vue": "^8.7.1",
    "eslint-webpack-plugin": "^3.1.1",
    "html-webpack-plugin": "^5.5.0",
    "image-minimizer-webpack-plugin": "^3.2.3",
    "imagemin": "^8.0.1",
    "imagemin-gifsicle": "^7.0.0",
    "imagemin-jpegtran": "^7.0.0",
    "imagemin-optipng": "^8.0.0",
    "imagemin-svgo": "^10.0.1",
    "less-loader": "^10.2.0",
    "mini-css-extract-plugin": "^2.6.0",
    "postcss-preset-env": "^7.5.0",
    "sass-loader": "^12.6.0",
    "stylus-loader": "^6.2.0",
    "vue-loader": "^17.0.0",
    "vue-style-loader": "^4.1.3",
    "vue-template-compiler": "^2.6.14",
    "webpack": "^5.72.0",
    "webpack-cli": "^4.9.2",
    "webpack-dev-server": "^4.9.0"
  },
  "dependencies": {
    "vue": "^3.2.33",
    "vue-router": "^4.0.15"
  },
  "browserslist": ["last 2 version", "> 1%", "not dead"]
}

.eslintrc.js

module.exports = {
  root: true,
  env: {
    node: true,
  },
  extends: ["plugin:vue/vue3-essential", "eslint:recommended"],
  parserOptions: {
    parser: "@babel/eslint-parser",
  },
};

babel.config.js

module.exports = {
  presets: ["@vue/cli-plugin-babel/preset"],
};

合并开发和生产配置

// webpack.config.js
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 { VueLoaderPlugin } = require("vue-loader");
const { DefinePlugin } = require("webpack");
const CopyPlugin = require("copy-webpack-plugin");

// 需要通过 cross-env 定义环境变量
const isProduction = process.env.NODE_ENV === "production";

const getStyleLoaders = (preProcessor) => {
  return [
    isProduction ? MiniCssExtractPlugin.loader : "vue-style-loader",
    "css-loader",
    {
      loader: "postcss-loader",
      options: {
        postcssOptions: {
          plugins: ["postcss-preset-env"],
        },
      },
    },
    preProcessor,
  ].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: [
      {
        // 用来匹配 .css 结尾的文件
        test: /\.css$/,
        // use 数组里面 Loader 执行顺序是从右到左
        use: getStyleLoaders(),
      },
      {
        test: /\.less$/,
        use: getStyleLoaders("less-loader"),
      },
      {
        test: /\.s[ac]ss$/,
        use: getStyleLoaders("sass-loader"),
      },
      {
        test: /\.styl$/,
        use: getStyleLoaders("stylus-loader"),
      },
      {
        test: /\.(png|jpe?g|gif|svg)$/,
        type: "asset",
        parser: {
          dataUrlCondition: {
            maxSize: 10 * 1024, // 小于10kb的图片会被base64处理
          },
        },
      },
      {
        test: /\.(ttf|woff2?)$/,
        type: "asset/resource",
      },
      {
        test: /\.(jsx|js)$/,
        include: path.resolve(__dirname, "../src"),
        loader: "babel-loader",
        options: {
          cacheDirectory: true,
          cacheCompression: false,
          plugins: [
            // "@babel/plugin-transform-runtime" // presets中包含了
          ],
        },
      },
      // vue-loader不支持oneOf
      {
        test: /\.vue$/,
        loader: "vue-loader", // 内部会给vue文件注入HMR功能代码
        options: {
          // 开启缓存
          cacheDirectory: path.resolve(
            __dirname,
            "node_modules/.cache/vue-loader"
          ),
        },
      },
    ],
  },
  plugins: [
    new ESLintWebpackPlugin({
      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"),
    }),
    new CopyPlugin({
      patterns: [
        {
          from: path.resolve(__dirname, "../public"),
          to: path.resolve(__dirname, "../dist"),
          toType: "dir",
          noErrorOnMissing: true,
          globOptions: {
            ignore: ["**/index.html"],
          },
          info: {
            minimized: true,
          },
        },
      ],
    }),
    isProduction &&
      new MiniCssExtractPlugin({
        filename: "static/css/[name].[contenthash:10].css",
        chunkFilename: "static/css/[name].[contenthash:10].chunk.css",
      }),
    new VueLoaderPlugin(),
    new DefinePlugin({
      __VUE_OPTIONS_API__: "true",
      __VUE_PROD_DEVTOOLS__: "false",
    }),
  ].filter(Boolean),
  optimization: {
    minimize: isProduction,
    // 压缩的操作
    minimizer: [
      new CssMinimizerPlugin(),
      new TerserWebpackPlugin(),
      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",
                      },
                    },
                  ],
                },
              ],
            ],
          },
        },
      }),
    ],
    splitChunks: {
      chunks: "all",
    },
    runtimeChunk: {
      name: (entrypoint) => `runtime~${entrypoint.name}`,
    },
  },
  resolve: {
    extensions: [".vue", ".js", ".json"],
  },
  devServer: {
    open: true,
    host: "localhost",
    port: 3000,
    hot: true,
    compress: true,
    historyApiFallback: true, // 解决vue-router刷新404问题
  },
  mode: isProduction ? "production" : "development",
  devtool: isProduction ? "source-map" : "cheap-module-source-map",
};

优化配置

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 ImageMinimizerPlugin = require("image-minimizer-webpack-plugin");
const TerserWebpackPlugin = require("terser-webpack-plugin");
const CopyPlugin = require("copy-webpack-plugin");
const { VueLoaderPlugin } = require("vue-loader");
const { DefinePlugin } = require("webpack");
const AutoImport = require("unplugin-auto-import/webpack");
const Components = require("unplugin-vue-components/webpack");
const { ElementPlusResolver } = require("unplugin-vue-components/resolvers");
// 需要通过 cross-env 定义环境变量
const isProduction = process.env.NODE_ENV === "production";

const getStyleLoaders = (preProcessor) => {
  return [
    isProduction ? MiniCssExtractPlugin.loader : "vue-style-loader",
    "css-loader",
    {
      loader: "postcss-loader",
      options: {
        postcssOptions: {
          plugins: ["postcss-preset-env"],
        },
      },
    },
    preProcessor && {
      loader: preProcessor,
      options:
        preProcessor === "sass-loader"
          ? {
              // 自定义主题：自动引入我们定义的scss文件
              additionalData: `@use "@/styles/element/index.scss" as *;`,
            }
          : {},
    },
  ].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: [
      {
        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)$/,
        include: path.resolve(__dirname, "../src"),
        loader: "babel-loader",
        options: {
          cacheDirectory: true,
          cacheCompression: false,
          plugins: [
            // "@babel/plugin-transform-runtime" // presets中包含了
          ],
        },
      },
      // vue-loader不支持oneOf
      {
        test: /\.vue$/,
        loader: "vue-loader", // 内部会给vue文件注入HMR功能代码
        options: {
          // 开启缓存
          cacheDirectory: path.resolve(
            __dirname,
            "node_modules/.cache/vue-loader"
          ),
        },
      },
    ],
  },
  plugins: [
    new ESLintWebpackPlugin({
      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"),
    }),
    new CopyPlugin({
      patterns: [
        {
          from: path.resolve(__dirname, "../public"),
          to: path.resolve(__dirname, "../dist"),
          toType: "dir",
          noErrorOnMissing: true,
          globOptions: {
            ignore: ["**/index.html"],
          },
          info: {
            minimized: true,
          },
        },
      ],
    }),
    isProduction &&
      new MiniCssExtractPlugin({
        filename: "static/css/[name].[contenthash:10].css",
        chunkFilename: "static/css/[name].[contenthash:10].chunk.css",
      }),
    new VueLoaderPlugin(),
    new DefinePlugin({
      __VUE_OPTIONS_API__: "true",
      __VUE_PROD_DEVTOOLS__: "false",
    }),
    // 按需加载element-plus组件样式
    AutoImport({
      resolvers: [ElementPlusResolver()],
    }),
    Components({
      resolvers: [
        ElementPlusResolver({
          importStyle: "sass", // 自定义主题
        }),
      ],
    }),
  ].filter(Boolean),
  optimization: {
    minimize: isProduction,
    // 压缩的操作
    minimizer: [
      new CssMinimizerPlugin(),
      new TerserWebpackPlugin(),
      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",
                      },
                    },
                  ],
                },
              ],
            ],
          },
        },
      }),
    ],
    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element-plus，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
        elementUI: {
          name: "chunk-elementPlus",
          test: /[\\/]node_modules[\\/]_?element-plus(.*)/,
          priority: 30,
        },
        // 将vue相关的库单独打包，减少node_modules的chunk体积。
        vue: {
          name: "vue",
          test: /[\\/]node_modules[\\/]vue(.*)[\\/]/,
          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: [".vue", ".js", ".json"],
    alias: {
      // 路径别名
      "@": path.resolve(__dirname, "../src"),
    },
  },
  devServer: {
    open: true,
    host: "localhost",
    port: 3000,
    hot: true,
    compress: true,
    historyApiFallback: true, // 解决vue-router刷新404问题
  },
  mode: isProduction ? "production" : "development",
  devtool: isProduction ? "source-map" : "cheap-module-source-map",
  performance: false,
};

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