webpack.config.js

const path = require('path');
const webpack = require('webpack');

const merge = require('webpack-merge');



const TARGET = process.env.npm_lifecycle_event;

const PATHS = {
  app: path.join(__dirname, 'app'),
  build: path.join(__dirname, 'build')
};

const common = {
  // Entry accepts a path or an object of entries. We'll be using the
  // latter form given it's convenient with more complex configurations.
  entry: {
    app: PATHS.app
  },
  resolve: {
    extensions: ['', '.js', '.jsx']
  },  
  output: {
    path: PATHS.build,
    filename: 'bundle.js'
  },
  module: {
    loaders: [
      {
        test: /\.css$/,
        loaders: ['style', 'css'],
        include: PATHS.app
      },
	  {
        test: /\.jsx?$/,
        loaders: ['babel?cacheDirectory'],
        include: PATHS.app
      },
	  {
		test: /\.jsx?$/,
		loader: 'babel',
		query: {
			cacheDirectory: true,
			presets: ['react', 'es2015', 'survivejs-kanban']
		},
		include: PATHS.app
	  }	  
    ]
  } 
};


// Default configuration
if(TARGET === 'start' || !TARGET) {

	module.exports = merge(common, {
		devtool: 'eval-source-map',
		devServer: {
		  contentBase: PATHS.build,

		  // Enable history API fallback so HTML5 History API based
		  // routing works. This is a good default that will come
		  // in handy in more complicated setups.
		  historyApiFallback: true,
		  hot: true,
		  inline: true,
		  progress: true,

		  // Display only errors to reduce the amount of output.
		  stats: 'errors-only',

		  // Parse host and port from env so this is easy to customize.
		  //
		  // If you use Vagrant or Cloud9, set
		  // host: process.env.HOST || '0.0.0.0';
		  //
		  // 0.0.0.0 is available to all network devices unlike default
		  // localhost
		  host: process.env.HOST,
		  port: process.env.PORT
		},
		plugins: [
		  new webpack.HotModuleReplacementPlugin()
		]
	  });

}

if(TARGET === 'build') {
  module.exports = merge(common, {});
}