webpack.prod.js

const path = require('path')

const webpack = require('webpack')
const { merge } = require('webpack-merge')
const DuplicatePackageCheckerPlugin = require('duplicate-package-checker-webpack-plugin')
const HtmlWebpackPlugin = require('html-webpack-plugin')

const common = require('./webpack.common.js')

const PRODUCTION_MODE = 'production'
const config = {
  mode: PRODUCTION_MODE,
  optimization: {
    splitChunks: {
      chunks: 'all',
      maxSize: 500000,
      maxInitialRequests: 6,
    },
  },
  module: {
    rules: [
      {
        test: /\.(js|jsx)$/,
        exclude: /node_modules/,
        use: ['babel-loader'],
      },
      {
        test: /\.tsx?$/,
        use: 'ts-loader',
        exclude: /node_modules/,
      },
      {
        test: /\.css$/i,
        use: [
          {
            loader: 'style-loader',
          },
          {
            loader: 'css-loader',
            options: {
              importLoaders: 1,
            },
          },
          {
            loader: 'postcss-loader',
          },
        ],
      },
      {
        test: /\.svg$/,
        include: path.resolve(__dirname, 'src'),
        use: [
          {
            loader: '@svgr/webpack',
            options: {
              svgoConfig: {
                plugins: [
                  {
                    name: 'prefixIds',
                    params: {
                      overrides: {
                        prefixIds: false,
                        prefixClassNames: false,
                      },
                    },
                  },
                ],
              },
            },
          },
        ],
      },
      {
        test: /\.(jpg|png|jpeg)$/,
        include: path.resolve(__dirname, 'src'),
        type: 'asset/inline',
      },
      {
        test: /\.(js)$/i,
        include: '/node_modules/',
        use: [
          {
            loader: 'file-loader',
          },
        ],
      },
    ],
  },
  plugins: [
    new HtmlWebpackPlugin({
      title: process.env.APP_ENV === 'production' ? 'Lago' : 'Lago - Cloud',
      template: path.join(__dirname, 'src', 'index.html'),
      favicon:
        process.env.APP_ENV === 'production'
          ? './src/public/images/favicon-prod.svg'
          : './src/public/images/favicon-staging.svg',
    }),
    new webpack.SourceMapDevToolPlugin({
      noSources: false,
      filename: '[name].[chunkhash].js.map',
    }),
  ],
  resolve: {
    alias: {
      deepmerge: path.resolve(__dirname, 'node_modules', 'deepmerge'),
      'lodash-es': 'lodash',
      lodash: path.resolve(__dirname, 'node_modules', 'lodash'),
      'react-is': path.resolve(__dirname, 'node_modules', 'react-is'),
      'symbol-observable': path.resolve(__dirname, 'node_modules', 'symbol-observable'),
      tslib: path.resolve(__dirname, 'node_modules', 'tslib'),
    },
  },
}

module.exports = (env) => {
  if (env.analyseBundle) {
    config.plugins.push(new DuplicatePackageCheckerPlugin())
  }

  return merge(common(env, PRODUCTION_MODE), config)
}