webpack.prod.js

const path = require('path')
const HtmlWebpackPlugin = require('html-webpack-plugin')
const MiniCssExtractPlugin = require('mini-css-extract-plugin')
const CopyWebpackPlugin = require('copy-webpack-plugin')
const TerserPlugin = require('terser-webpack-plugin')
const CssMinimizerPlugin = require('css-minimizer-webpack-plugin')
const { CleanWebpackPlugin } = require('clean-webpack-plugin')

module.exports = {
  mode: 'production',
  entry: {
    main: './src/js/index.js',
    gallery: './src/js/gallery.js',
    policy: './src/js/policy.js',
    form: './src/js/form.js',
  },
  output: {
    filename: 'js/[name].[contenthash].js',
    path: path.resolve(__dirname, 'dist'),
    clean: true,
  },
  module: {
    rules: [
      {
        test: /\.css$/i,
        use: [MiniCssExtractPlugin.loader, 'css-loader', 'postcss-loader'],
      },
      {
        test: /\.(png|jpe?g|gif|svg|webp)$/i,
        type: 'asset/resource',
        generator: {
          filename: 'images/[name].[hash][ext]',
        },
      },
      {
        test: /\.html$/,
        use: [
          {
            loader: 'html-loader',
            options: { minimize: true },
          },
        ],
      },
      {
        test: /\.js$/,
        exclude: /node_modules/,
        use: {
          loader: 'babel-loader',
          options: {
            presets: ['@babel/preset-env'],
          },
        },
      },
    ],
  },
  plugins: [
    new CleanWebpackPlugin(),
    new HtmlWebpackPlugin({
      template: './src/index.html',
      filename: 'index.html',
      chunks: ['main'],
      minify: {
        collapseWhitespace: true,
        removeComments: true,
        removeRedundantAttributes: true,
        useShortDoctype: true,
      },
    }),
    new HtmlWebpackPlugin({
      template: './src/gallery.html',
      filename: 'gallery.html',
      chunks: ['gallery'],
      minify: {
        collapseWhitespace: true,
        removeComments: true,
        removeRedundantAttributes: true,
        useShortDoctype: true,
      },
    }),
    new HtmlWebpackPlugin({
      template: './src/policy.html',
      filename: 'policy.html',
      chunks: ['policy'],
      minify: {
        collapseWhitespace: true,
        removeComments: true,
        removeRedundantAttributes: true,
        useShortDoctype: true,
      },
    }),
    new MiniCssExtractPlugin({
      filename: 'css/[name].[contenthash].css',
    }),
    new CopyWebpackPlugin({
      patterns: [
        { from: 'src/assets', to: 'assets' },
        { from: 'src/site.webmanifest', to: 'site.webmanifest' },
      ],
    }),
  ],
  optimization: {
    minimizer: [
      new TerserPlugin({
        terserOptions: {
          compress: {
            drop_console: true,
          },
        },
      }),
      new CssMinimizerPlugin(),
    ],
    splitChunks: {
      chunks: 'all',
    },
  },
  resolve: {
    alias: {
      '@': path.resolve(__dirname, 'src'),
    },
  },
}