webpack.config.build.js

var webpack = require('webpack');
var path = require('path');
var ExtractTextPlugin = require('extract-text-webpack-plugin');

var stylusLoader = ExtractTextPlugin.extract({fallback: 'style-loader', use: 'css-loader?minimize!stylus-loader'});

module.exports = {
  entry: [
    './entry.js'
  ],
  output: {
    path: path.resolve(__dirname, './build'),
    filename: 'bundle.js',
  },
  plugins: [
    new webpack.DefinePlugin({
      'process.env': {
        NODE_ENV: JSON.stringify('production')
      }
    }),
    new ExtractTextPlugin("style.css"),
    // new webpack.NoEmitOnErrorsPlugin(),
    new webpack.optimize.UglifyJsPlugin({
      compress: {
        warnings: false
      },
      comments: false
    })
  ],
  module: {
    loaders: [
      {
        test: /\.js[x]?$/,
        loader: 'babel-loader',
        query:{
          presets: ['es2015', 'react', 'stage-1'],
          plugins:['transform-decorators-legacy']
        },
        include: path.resolve(__dirname, 'src'),
        exclude: path.resolve(__dirname, 'node_modules'),
      },
      {
        test: /\.styl$/,
        loader: stylusLoader
      },
      {
        test   : /\.(ttf|eot|svg|woff(2)?)(\?[a-z0-9=&.]+)?$/,
        loader : 'url-loader'
      }
  ]}
};