RestaurantFinder/webpack.prod.js at master · dhino12/RestaurantFinder · GitHub

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/* eslint-disable import/no-extraneous-dependencies */
const { CleanWebpackPlugin } = require('clean-webpack-plugin');
const path = require('path');
const { merge } = require('webpack-merge');
const WorkboxWebpackPlugin = require('workbox-webpack-plugin');
const ImageminWebpackPlugin = require('imagemin-webpack-plugin').default;
const ImageminPngquant = require('imagemin-pngquant');
const ImageminWebpWebpackPlugin = require('imagemin-webp-webpack-plugin');
const ImageminMozjpeg = require('imagemin-mozjpeg');
const TerserPlugin = require('terser-webpack-plugin');
const CssMinimizerPlugin = require('css-minimizer-webpack-plugin');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const { BundleAnalyzerPlugin } = require('webpack-bundle-analyzer');
const common = require('./webpack.common');

module.exports = merge(common, {
  mode: 'production',
  devtool: 'source-map',
  module: {
    rules: [
      {
        test: /.s?css$/,
        use: [MiniCssExtractPlugin.loader, 'css-loader', 'sass-loader'],
      },
      {
        test: /\.js$/,
        exclude: /node_modules/,
        use: [
          {
            loader: 'babel-loader',
            options: {
              presets: ['@babel/preset-env'],
            },
          },
        ],
      },
    ],
  },
  optimization: {
    runtimeChunk: 'single',
    minimize: true,
    minimizer: [
      new CssMinimizerPlugin(),
      new TerserPlugin({
        terserOptions: {
          compress: true,
        },
      }),
    ],
    splitChunks: {
      chunks: 'all',
      minSize: 20000,
      maxSize: 70000,
      minChunks: 1,
      maxAsyncRequests: 30,
      maxInitialRequests: 30,
      automaticNameDelimiter: '~',
      enforceSizeThreshold: 50000,
      cacheGroups: {
        defaultVendors: {
          test: /[\\/]node_modules[\\/]/,
          priority: -10,
        },
        default: {
          minChunks: 2,
          priority: -20,
          reuseExistingChunk: true,
        },
      },
    },
  },
  plugins: [
    new WorkboxWebpackPlugin.InjectManifest({
      swSrc: path.resolve(__dirname, 'src/scripts/sw.js'),
      swDest: './sw.bundle.js',
    }),
    new CleanWebpackPlugin(),
    new MiniCssExtractPlugin(),
    new BundleAnalyzerPlugin({
      analyzerMode: 'static',
      openAnalyzer: false,
    }),
    new ImageminWebpackPlugin({
      plugins: [
        ImageminMozjpeg({
          quality: 50,
          progressive: true,
        }),
        ImageminPngquant(),
      ],
    }),
    new ImageminWebpWebpackPlugin({
      config: [
        {
          test: /\.(jpe?g|png)/,
          options: {
            quality: 50,
          },
        },
      ],
      overrideExtension: true,
    }),
  ],

});