webpack.dev.js

const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const CopyWebpackPlugin = require('copy-webpack-plugin');

/*
 * SplitChunksPlugin is enabled by default and replaced
 * deprecated CommonsChunkPlugin. It automatically identifies modules which
 * should be splitted of chunk by heuristics using module duplication count and
 * module category (i. e. node_modules). And splits the chunks…
 *
 * It is safe to remove "splitChunks" from the generated configuration
 * and was added as an educational example.
 *
 * https://webpack.js.org/plugins/split-chunks-plugin/
 *
 */

/*
 * We've enabled UglifyJSPlugin for you! This minifies your app
 * in order to load faster and run less javascript.
 *
 * https://github.com/webpack-contrib/uglifyjs-webpack-plugin
 *
 */

module.exports = {
  module: {
    rules: [
      {
        test: /\.ts$/,
        use: 'ts-loader',
        exclude: /node_modules/,
      },
      {
        test: /\.css$/,
        use: [
          {
            loader: 'style-loader',
            options: {
              sourceMap: true,
            },
          },
          {
            loader: 'css-loader',
          },
        ],
      },
      {
        test: /\.(woff|woff2|eot|ttf|otf|)$/,
        use: ['file-loader'],
      },
    ],
  },
  entry: path.resolve(__dirname) + '/src/ts/main.ts',
  /** Telling webpack to extract typescript source maps and include in our final bundle  */
  devtool: 'inline-source-map',
  output: {
    filename: '[name].js',
    path: path.resolve(__dirname, 'dist'),
  },
  resolve: {
    extensions: ['.tsx', '.ts', '.js'],
  },
  mode: 'development',
  optimization: {
    splitChunks: {
      cacheGroups: {
        vendors: {
          priority: -10,
          test: /[\\/]node_modules[\\/]/,
        },
      },
      chunks: 'async',
      minChunks: 1,
      minSize: 30000,
      name: true,
    },
  },
  plugins: [
    new HtmlWebpackPlugin({
      filename: 'index.html',
      template: 'assets/index.html',
    }),
    new CopyWebpackPlugin([{ from: 'assets/spines', to: 'spines' }]),
  ],
};