webpack.prod.js

/*
 * webpack.prod.js
 */

const webpack = require('webpack');
const merge = require('webpack-merge');
const common = require('./webpack.common.js');
const path = require('path');
const CompressionPlugin = require('compression-webpack-plugin');
const OptimizeCSSAssetsPlugin = require("optimize-css-assets-webpack-plugin");
const UglifyJsPlugin = require('uglifyjs-webpack-plugin');

module.exports = merge(common, {
  watch: false,
  devtool: 'source-map',
  optimization: {
    minimizer: [
      new UglifyJsPlugin({
        test: /\.js(\?.*)?$/i,
      }),
       new OptimizeCSSAssetsPlugin({})
    ]
  },
  plugins: [
    new CompressionPlugin({
      filename: '[path].gz[query]',
      algorithm: 'gzip',
      test: /\.(js|css|html|svg)$/
    }),
    new webpack.DefinePlugin({
      'process.env.NODE_ENV': JSON.stringify('production'),
    })
  ]
});