webpack.config.js

const { resolve } = require("path")
const HtmlWebpackPlugin = require("html-webpack-plugin")
const { CleanWebpackPlugin } = require("clean-webpack-plugin")
const CopyWebpackPlugin = require("copy-webpack-plugin")

module.exports = {
  mode: "development",
  entry: {
    background: "./src/background/index.ts",
    popup: "./src/popup/index.tsx",
    options: "./src/options/index.tsx",
  },
  output: {
    filename: "[name].js",
    path: resolve(__dirname, "dist"),
  },
  module: {
    rules: [
      {
        test: /\.(ts|js)x?$/,
        exclude: /node_modules/,
        use: "babel-loader",
      },
      {
        test: /\.s[ac]ss$/i,
        exclude: /node_modules/,
        use: ["style-loader", "css-loader", "postcss-loader", "sass-loader"],
      },
    ],
  },
  plugins: [
    // Clean dist folder before building
    new CleanWebpackPlugin(),
    // Generate different html files for different pages
    new HtmlWebpackPlugin({
      template: "./src/popup/index.html",
      filename: "popup.html",
      chunks: ["popup"],
    }),
    new HtmlWebpackPlugin({
      template: "./src/options/index.html",
      filename: "options.html",
      chunks: ["options"],
    }),
    // Copy files to dist folder
    new CopyWebpackPlugin({
      patterns: [{ from: "./src/*.json", to: "[name][ext]" }],
    }),
  ],
  // Dev Server
  devServer: {
    compress: true,
    port: 3000,
  },
  stats: "errors-warnings",
}