webpack.config.prod.js

const path = require('path');
const webpack = require('webpack');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const CopyWebpackPlugin = require('copy-webpack-plugin');

const mode = 'production';

module.exports = {
  mode,
  devtool: 'eval',
  entry: {
    main: path.resolve(__dirname, 'src'),
  },
  output: {
    filename: '[name].bundle.js',
    chunkFilename: '[name].bundle.js',
    path: path.resolve(__dirname, 'dist'),
    publicPath: '/'
  },
  resolve: {
    modules: [
      path.join(__dirname, 'src'),
      'node_modules'
    ]
  },
  performance: {
    hints: 'warning',
    maxAssetSize: 200000,
  },
  optimization: {
    noEmitOnErrors: true,
    nodeEnv: mode,
    runtimeChunk: 'single',
    splitChunks: {
      chunks: 'all',
      minChunks: 1,
      maxAsyncRequests: 5,
      maxInitialRequests: 4,
      name: true,
      automaticNameDelimiter: '.',
      cacheGroups: {
        node_vendors: {
          test: /[\\/]node_modules[\\/]/,
          chunks: 'initial',
          name: 'vendor',
          maxSize: 1000000,
          priority: 1
        }
      }
    },
  },
  stats: {
    assets: true,
    colors: true,
    errors: true,
    errorDetails: true,
    hash: false
  },
  module: {
    rules: [
      {
        test: /\.js$/,
        exclude: /node_modules/,
        enforce: 'pre',
        use: 'babel-loader',
      },
      {
        test: /\.less$/,
        use: [
          MiniCssExtractPlugin.loader,
          'css-loader',
          'postcss-loader',
          'less-loader'
        ]
      },
      {
        test: /\.css/,
        use: ['style-loader', 'css-loader']
      },
      {
        test: /\.(png|jpg|gif)$/,
        use: [
          {
            loader: 'url-loader',
            options: {
              limit: 4096,
            },
          },
        ],
      },
      {
        test: /\.(woff|woff2|ttf|eot)$/,
        use: [
          {
            loader: 'url-loader',
            options: {
              limit: 4096,
            },
          },
        ],
      },
      {
        test: /\.svg(\?v=\d+\.\d+\.\d+)?$/,
        use: [
          {
            loader: 'url-loader',
            options: {
              limit: 10000,
            },
          },
        ],
      }
    ]
  },
  plugins: [
    new webpack.DefinePlugin({
      'process.env.NODE_ENV': JSON.stringify(mode),
    }),
    new MiniCssExtractPlugin({
      filename: 'style.bundle.css',
    }),
    new HtmlWebpackPlugin({
      template: './index.en.html',
      inject: 'body',
      filename: 'index.html'
    }),
    new HtmlWebpackPlugin({
      template: './index.ru.html',
      inject: 'body',
      filename: 'index.ru.html'
    }),
    new CopyWebpackPlugin([
      './src/img/richpreview.jpg',
      './src/img/favicon.ico'
    ])
  ],
};