webpack.config.js

var webpack = require("webpack"),
  path = require("path"),
  env = require("./utils/env"),
  CopyWebpackPlugin = require("copy-webpack-plugin"),
  HtmlWebpackPlugin = require("html-webpack-plugin"),
  TerserPlugin = require("terser-webpack-plugin");
var { CleanWebpackPlugin } = require("clean-webpack-plugin");
var ReactRefreshWebpackPlugin = require("@pmmmwh/react-refresh-webpack-plugin");

const ASSET_PATH = process.env.ASSET_PATH || "/";
var alias = {};
var fileExtensions = ["png", "svg"];
const isDevelopment = process.env.NODE_ENV !== "production";

var options = {
  mode: process.env.NODE_ENV || "development",
  entry: {
    popup: path.join(__dirname, "src", "pages", "popup", "index.jsx"),
    background: path.join(__dirname, "src", "pages", "background", "index.js"),
    contentScript: path.join(__dirname, "src", "pages", "content", "index.js"),
  },
  chromeExtensionBoilerplate: {
    notHotReload: ["background", "contentScript"],
  },
  output: {
    filename: "[name].bundle.js",
    path: path.resolve(__dirname, "build"),
    clean: true,
    publicPath: ASSET_PATH,
  },
  module: {
    rules: [
      {
        test: /\.(css)$/,
        use: [
          {
            loader: "style-loader",
          },
          {
            loader: "css-loader",
          },
        ],
      },
      {
        test: new RegExp(".(" + fileExtensions.join("|") + ")$"),
        type: "asset/resource",
        exclude: /node_modules/,
      },
      {
        test: /\.html$/,
        loader: "html-loader",
        exclude: /node_modules/,
      },
      {
        test: /\.(js|jsx)$/,
        use: [
          {
            loader: "source-map-loader",
          },
          {
            loader: require.resolve("babel-loader"),
            options: {
              plugins: [isDevelopment && require.resolve("react-refresh/babel")].filter(Boolean),
            },
          },
        ],
        exclude: /node_modules/,
      },
    ],
  },
  resolve: {
    alias: alias,
    extensions: fileExtensions.map((extension) => "." + extension).concat([".js", ".jsx", ".css"]),
  },
  plugins: [
    isDevelopment && new ReactRefreshWebpackPlugin({ overlay: false }),
    new CleanWebpackPlugin({ verbose: false }),
    new webpack.ProgressPlugin(),
    new webpack.EnvironmentPlugin(["NODE_ENV"]),
    new CopyWebpackPlugin({
      patterns: [
        {
          from: "src/manifest.json",
          to: path.join(__dirname, "build"),
          force: true,
          transform: function (content, path) {
            return Buffer.from(
              JSON.stringify({
                description: process.env.npm_package_description,
                version: process.env.npm_package_version,
                ...JSON.parse(content.toString()),
              })
            );
          },
        },
        {
          from: "src/assets/netRequestRules.json",
          to: path.join(__dirname, "build"),
          force: true,
        },
      ],
    }),
    new CopyWebpackPlugin({
      patterns: [
        {
          from: "src/pages/content/content.styles.css",
          to: path.join(__dirname, "build"),
          force: true,
        },
      ],
    }),
    new CopyWebpackPlugin({
      patterns: [
        {
          from: "src/assets/img/icon.png",
          to: path.join(__dirname, "build"),
          force: true,
        },
      ],
    }),
    new HtmlWebpackPlugin({
      template: path.join(__dirname, "src", "pages", "popup", "index.html"),
      filename: "popup.html",
      chunks: ["popup"],
      cache: false,
    }),
  ].filter(Boolean),
  infrastructureLogging: {
    level: "info",
  },
};
if (env.NODE_ENV === "development") {
  options.devtool = "cheap-module-source-map";
} else {
  options.optimization = {
    minimize: true,
    minimizer: [
      new TerserPlugin({
        extractComments: false,
      }),
    ],
  };
}

module.exports = options;