webpack.config.production.js

const path = require('path');
const pkg = require('./package.json');
const ExtractTextPlugin = require('extract-text-webpack-plugin');
const webpack = require('webpack');

const LIB_NAME = pkg.name;

module.exports = {
  entry: {
    [LIB_NAME]: path.resolve(__dirname, 'src')
  },
  output: {
    libraryTarget: 'umd',
    path: path.resolve(__dirname, 'dist'),
    library: 'ReactFlexboxGrid',
    filename: '[name].js',
  },
  module: {
    loaders: [
      {
        test: /\.css$/,
        loader: ExtractTextPlugin.extract('style-loader', 'css?modules&importLoaders=1&localIdentName=[name]__[local]___[hash:base64:5]!postcss')
      }
    ],
  },
  externals: ['react'],
  plugins: [
    new webpack.DefinePlugin({
      'process.env.NODE_ENV': JSON.stringify('production')
    }),
    new ExtractTextPlugin('[name].css')
  ]
};