webpack.dist.config.js

var webpack = require('webpack');
var UglifyJsPlugin = webpack.optimize.UglifyJsPlugin;

module.exports = {

  entry: {
    'react-crop': './lib/index.src.js',
    'react-crop.min': './lib/index.src.js'
  },

  externals: [
    'react',
    'react-dom'
  ],

  output: {
    filename: '[name].js',
    chunkFilename: '[id].chunk.js',
    path: 'dist',
    publicPath: '/',
    libraryTarget: 'umd',
    library: 'ReactCrop'
  },

  devtool: 'source-map',

  plugins: [
    new webpack.DefinePlugin({
      'process.env.NODE_ENV': JSON.stringify(process.env.NODE_ENV)
    }),
    new UglifyJsPlugin({
      include: /\.min\.js$/,
      minimize: true,
      compress: {
        warnings: false
      }
    })
  ],

  module: {
    loaders: [
      { test: /\.js?$/, exclude: /node_modules/, loader: 'babel'},
      {
        test: /\.css$/,
        loader: 'style-loader!css-loader'
      }
    ]
  }

};