webpack.config.js

// Generated using webpack-cli https://github.com/webpack/webpack-cli

const path = require("path");
const HtmlWebpackPlugin = require("html-webpack-plugin");
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
const CopyWebpackPlugin = require('copy-webpack-plugin')
const WorkboxWebpackPlugin = require("workbox-webpack-plugin");

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

const stylesHandler = isProduction
  ? MiniCssExtractPlugin.loader
  : "style-loader";

const config = {
  entry: "./src/index.tsx",
  output: {
    clean: true,
    filename: '[name].[contenthash].js',
    path: path.resolve(__dirname, "dist"),
  },
  optimization: {
    moduleIds: 'deterministic',
    runtimeChunk: 'single',
    splitChunks: {
      cacheGroups: {
        vendor: {
          test: /[\\/]node_modules[\\/]/,
          name: 'vendors',
          chunks: 'all',
        },
      },
    },
  },
  devServer: {
    open: true,
    host: "localhost",
  },
  plugins: [
    new CopyWebpackPlugin({
      patterns: [
        {
          from: path.resolve(__dirname, './public'),
          globOptions: {
            ignore: ["**/index.html"]
          }
        }
      ]
    }),
    new HtmlWebpackPlugin({
      template: path.resolve(__dirname, './public/index.html'),
      minify: true,
    }),

    // Add your plugins here
    // Learn more about plugins from https://webpack.js.org/configuration/plugins/
  ],
  module: {
    rules: [
      {
        test: /\.(ts|tsx|js|tsx)$/i,
        loader: "babel-loader",
        exclude: ["/node_modules/", "/scripts/"],
      },
      {
        test: /\.(css|scss|sass)$/i,
        use: [stylesHandler, "css-loader", "sass-loader"],
      },
      {
        test: /\.(eot|svg|ttf|woff|woff2|png|jpg|gif)$/i,
        use: ["file-loader"],
        type: "asset",
      },
      {
        test: /\.(glsl|frag|vert)$/i,
        use: ["file-loader"],
        type: "asset",
      },

      // Add your rules for custom modules here
      // Learn more about loaders from https://webpack.js.org/loaders/
    ],
  },
  resolve: {
    alias: {
      three: path.resolve('./node_modules/three')
    },
    fallback: {
      "os": require.resolve("os-browserify/browser")
    },
    extensions: [".tsx", ".ts", ".jsx", ".js", "..."],
  },
};

module.exports = () => {
  if (isProduction) {
    config.mode = "production";

    config.plugins.push(new MiniCssExtractPlugin());

    config.plugins.push(new WorkboxWebpackPlugin.GenerateSW({
      maximumFileSizeToCacheInBytes: 20 * 1e+6 // mb * bytes/mb
    }));
  } else {
    config.mode = "development";
  }
  return config;
};