webpack.app.config.js

const webpack = require("webpack");
const path = require("path");
const HtmlWebpackPlugin = require("html-webpack-plugin");
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
const TerserPlugin = require("terser-webpack-plugin");
const CssMinimizerPlugin = require("css-minimizer-webpack-plugin");

const config = {
    entry: "./src/index.js",
    output: {
        path: path.resolve(__dirname, "build"),
        // There will be one main bundle, and one file per asynchronous chunk.
        filename: "static/js/[name].[contenthash:8].js",
        // There are also additional JS chunk files if you use code splitting.
        chunkFilename: "static/js/[name].[contenthash:8].chunk.js",
        publicPath: ".",
        library: "TolkienCalendars",
        libraryTarget: "umd",
    },
    // Stop compilation early in production
    bail: true,
    devtool: "source-map",
    optimization: {
        minimize: true,
        minimizer: [new TerserPlugin(), new CssMinimizerPlugin()],
        runtimeChunk: "single",
        splitChunks: {
            cacheGroups: {
                vendor: {
                    test: /[\\/]node_modules[\\/]/,
                    name: "vendors",
                    chunks: "all",
                },
            },
        },
    },
    plugins: [
        new HtmlWebpackPlugin({
            inject: "head",
            scriptLoading: "blocking",
            template: "public/index.html",
            minify: {
                removeRedundantAttributes: true,
                useShortDoctype: true,
                removeEmptyAttributes: true,
                removeStyleLinkTypeAttributes: true,
                keepClosingSlash: true,
                minifyJS: true,
                minifyCSS: true,
                minifyURLs: true,
            },
        }),
        new MiniCssExtractPlugin({
            // Options similar to the same options in webpackOptions.output
            // both options are optional
            filename: "static/css/[name].[contenthash:8].css",
            chunkFilename: "static/css/[name].[contenthash:8].chunk.css",
        }),
    ],
    module: {
        rules: [
            {
                test: /\.(js|jsx)$/,
                use: "babel-loader",
                exclude: /node_modules/,
            },
            {
                test: /\.css$/,
                use: [
                    MiniCssExtractPlugin.loader,
                    {
                        loader: "css-loader",
                        options: {
                            importLoaders: 1,
                            sourceMap: true,
                        },
                    },
                    "postcss-loader",
                ],
            },
            {
                test: /\.ts(x)?$/,
                loader: "ts-loader",
                exclude: /node_modules/,
            },
        ],
    },
    resolve: {
        extensions: [".tsx", ".ts", ".js"],
    },
};

module.exports = config;