webpack.config.js

var webpack = require('webpack');

var env = process.env.NODE_ENV;

// configuration
var config = {
	module: {
		loaders: [
			{
				test: /\.(js|jsx)$/,
				exclude: /node_modules/,
				loader: 'babel-loader'
			}
		]
	},
	output: {
		library: 'ReactHabitat',
		libraryTarget: 'umd'
	},
	externals: {
		'react': 'React',
		'react-dom': 'ReactDOM'
	},
	plugins: [
		{
			apply: function apply(compiler) {
				compiler.parser.plugin('expression global', function expressionGlobalPlugin() {
					this.state.module.addVariable('global', "(function() { return this; }()) || Function('return this')()")
					return false
				})
			}
		},
		new webpack.optimize.OccurenceOrderPlugin(),
		new webpack.DefinePlugin({
			'process.env.NODE_ENV': JSON.stringify(env)
		})
	]
};

if (env === 'production') {
	config.plugins.push(
		new webpack.optimize.UglifyJsPlugin({
			compressor: {
				pure_getters: true,
				unsafe: true,
				unsafe_comps: true,
				screw_ie8: true,
				warnings: false
			}
		})
	)
}

module.exports = config;