webpack.config.js

const path = require('path');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const TerserPlugin = require('terser-webpack-plugin');
const CopyPlugin = require('copy-webpack-plugin');

const prod = process.env.NODE_ENV === 'production';

const config = {
  entry: {
    app: './src/scripts/app'
  },
  output: {
    filename: 'assets/scripts/[name].js',
    chunkFilename: 'assets/scripts/[name].[chunkhash:3].js',
    path: path.resolve('app')
  },
  devServer: {
    contentBase: path.resolve(__dirname, 'app'),
    watchContentBase: true,
    writeToDisk: true,
    open: true
  },
  bail: true,
  stats: {
    assetsSort: '!size',
    builtAt: false,
    children: false,
    modules: false
  },
  module: {
    rules: [
      {
        test: /\.js$/,
        loader: 'babel-loader?cacheDirectory'
      },
      {
        test: /\.css$/,
        use: [MiniCssExtractPlugin.loader, 'css-loader?url=false', 'postcss-loader']
      }
    ]
  },
  optimization: {
    minimizer: [new TerserPlugin({ parallel: true, cache: true, extractComments: false })],
    splitChunks: {
      cacheGroups: {
        vendors: false // Do not emit vendors~* files that are almost empty in this setup
      }
    }
  },
  plugins: [
    new MiniCssExtractPlugin({
      filename: 'assets/styles/[name].css'
    }),
    new CopyPlugin([
      { from: 'src/index.html.liquid', to: 'views/pages/home.html.liquid' },
      { from: 'src/images', to: 'assets/images' },
      { from: 'src/fonts', to: 'assets/fonts' }
    ])
  ],
  mode: prod ? 'production' : 'development'
};

module.exports = config;