webpack.prod.js

'use strict'

const path = require('path')
    , webpack = require('webpack')
    , { BundleStatsWebpackPlugin } = require('bundle-stats-webpack-plugin')  
    , HtmlWebpackPlugin = require('html-webpack-plugin')    
    , babelConfig = require('./babel.config')
    , TerserPlugin = require('terser-webpack-plugin');

module.exports = {
  mode: "production",
  cache: true,
  entry: {
    app: {
      import: path.resolve('src', 'index.jsx'),
      dependOn: 'lib'
    },
    lib: [
            "react",                                        
            "react-dom/client",                                    
            "chart.js",                          
            "papaparse",
            "raven-js" 
    ],
  },
  output: {
      path: path.resolve('app'),
      filename: "[name]_[chunkhash].js",
      chunkFilename: "[name]_[chunkhash].js",
      publicPath: 'app/'
  },
  module: {
    rules: [
      {
        test: /\.jsx?$/,
        exclude: /(node_modules)/,
        use: {
          loader: 'babel-loader',
          options: {
             cacheDirectory: true,
             ...babelConfig  
          }
        },
        include: [
          path.join(__dirname),
          path.join(__dirname, "src"),
        ]
      }
    ]
  },
  resolve: {
    modules: ['node_modules'],
    extensions: ['.js', '.jsx']
  },
  plugins : [        
    new BundleStatsWebpackPlugin(),
    new HtmlWebpackPlugin({
      minify: false,         
      filename: path.resolve('index.html'),
      template: path.resolve('template', 'index.ejs'),
      inject: false
    })    
  ],

  optimization: {         
    minimize: true,
    minimizer: [new TerserPlugin()]       
  }
}