webpack.common.js

const path = require('path');
const CopyWebpackPlugin = require('copy-webpack-plugin');
// eslint-disable-next-line no-undef
const baseDir = path.resolve(__dirname, 'app');

module.exports = {
  entry: {
    main: './app/index.jsx'
  },
  // optimization
  optimization: {
    runtimeChunk: 'single',
    splitChunks: {
      chunks: 'all',
      maxInitialRequests: Infinity,
      minSize: 0,
      cacheGroups: {
        vendor: {
          test: /[\\/]node_modules[\\/]/,
          name(module) {
            // get the name. E.g. node_modules/packageName/not/this/part.js
            // or node_modules/packageName
            const packageName = module.context.match(/[\\/]node_modules[\\/](.*?)([\\/]|$)/)[1];

            // npm package names are URL-safe, but some servers don't like @ symbols
            return `npm.${packageName.replace('@', '')}`;
          },
        },
      },
    },
  },
  resolve: {
    extensions: ['.js', '.jsx', '.json'],
  },
  plugins: [
    new CopyWebpackPlugin({
      patterns: [
        path.resolve(baseDir, 'config', 'config.json'),
        {
          from: path.resolve(baseDir, 'config', 'locales'),
          to: 'locales'
        },
        {
          // eslint-disable-next-line no-undef
          from: path.resolve(__dirname, 'images'),
          to: 'images',
          globOptions: {
            dot: true,
          },
        },
        {
          // eslint-disable-next-line no-undef
          from: path.resolve(__dirname, 'public'),
          globOptions: {
            dot: true,
          },
        }
      ]
    })
  ],
  module: {
    rules: [
      {
        test: /\.html$/,
        use: ['html-loader']
      },
      {
        test: /.(js|jsx)$/,
        exclude: /node_modules/,
        use: ['babel-loader', 'eslint-loader']
      },
      {
        test: /\.(svg|png|jpg|ttf|gif)$/,
        use: {
          loader: 'file-loader',
          options: {
            name: '[name].[hash].[ext]',
            outputPath: 'images'
          }
        }
      }
    ]
  }
};