webpack.prod.js

const { resolve } = require('path');
const webpack = require('webpack');
const cssnano = require('cssnano');
const CompressionPlugin = require('compression-webpack-plugin');
const ExtractTextPlugin = require('extract-text-webpack-plugin');
const OptimizeCssAssetsPlugin = require('optimize-css-assets-webpack-plugin');
const UglifyJSPlugin = require('uglifyjs-webpack-plugin');

module.exports = {
  devtool: 'source-map',
  entry: [
    './components/demo/entry.jsx',
    './styles/demo.scss',
  ],
  output: {
    filename: 'bundle.js',
    path: resolve(__dirname, 'static')
  },
  resolve: {
    extensions: ['.json', '.js', '.jsx'],
  },

  context: resolve(__dirname, 'src'),

  plugins: [
    new webpack.LoaderOptionsPlugin({
      test: /\.jsx?$/,
      options: {
        eslint: {
          configFile: resolve(__dirname, '.eslintrc'),
          cache: false,
        }
      },
    }),

    new ExtractTextPlugin({ filename: './index.css', disable: false, allChunks: true }),

    new webpack.DefinePlugin({
      'process.env': {
        'NODE_ENV': JSON.stringify('production')
      }
    }),
    new UglifyJSPlugin({
      test: /\.js($|\?)/i
    }),
    new webpack.EnvironmentPlugin([
      'ENV'
    ]),
    new OptimizeCssAssetsPlugin({
      assetNameRegExp: /index\.css$/g,
      cssProcessor: cssnano,
      cssProcessorOptions: { discardComments: { removeAll: true }, discardUnused: { fontFace: false } },
      canPrint: true
    }),
    new CompressionPlugin({
      asset: '[path].gz[query]',
      algorithm: 'gzip',
      test: /\.(js|css|html)$/,
      threshold: 10240,
      minRatio: 0.8
    })
  ],
  module: {
    rules: [
      // {
      //   enforce: "pre",
      //   test: /\.jsx?$/,
      //   exclude: /node_modules/,
      //   loader: "eslint-loader"
      // },
      {
        test: /\.jsx?$/,
        loaders: [
          'babel-loader',
        ],
        exclude: /node_modules/,
      },
      {
        test: /\.scss$/,
        exclude: /node_modules/,
        use: ExtractTextPlugin.extract({
          fallback: 'style-loader',
          use: [
            'css-loader',
            {
              loader: 'sass-loader',
              query: {
                sourceMap: false,
              },
            },
          ],
          publicPath: '../'
        }),
      },
      { test: /\.(png|jpg|gif)$/, use: 'url-loader?limit=15000&name=images/[name].[ext]' },
      { test: /\.eot(\?v=\d+.\d+.\d+)?$/, use: 'file-loader?&name=fonts/[name].[ext]' },
      { test: /\.woff(2)?(\?v=[0-9]\.[0-9]\.[0-9])?$/, use: 'url-loader?limit=10000&mimetype=application/font-woff&name=fonts/[name].[ext]' },
      { test: /\.[ot]tf(\?v=\d+.\d+.\d+)?$/, use: 'url-loader?limit=10000&mimetype=application/octet-stream&name=fonts/[name].[ext]' },
      { test: /\.svg(\?v=\d+\.\d+\.\d+)?$/, use: 'url-loader?limit=10000&mimetype=image/svg+xml&name=images/[name].[ext]' },
    ]
  },
};