webpack.config.dev.js

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

module.exports = {
  devtool: 'source-map',
  entry: {
    main: [
      'webpack/hot/only-dev-server',
      'webpack-hot-middleware/client',
      './src/client.js'
    ],
    vendor: [
      'react',
      'react-dom',
      'react-router',
      'redux',
      'react-redux',
      'aphrodite',
      'superagent'
    ]
  },
  output: {
    path: path.join(__dirname, 'dist'),
    filename: '[name].js',
    chunkFilename: '[id].chunk.js',
    publicPath: '/build/static/'
  },
  plugins: [
    new webpack.optimize.OccurenceOrderPlugin(),
    new webpack.HotModuleReplacementPlugin(),
    new webpack.optimize.CommonsChunkPlugin('vendor', 'vendor.js', 2),
    new webpack.NoErrorsPlugin(),
    new webpack.DefinePlugin({
      'process.env.NODE_ENV': JSON.stringify('development'),
    }),
    new ExtractTextPlugin("[name].css") // extract css. replace with new ExtractTextPlugin("[name]_[hash].css") for prod
  ],
  module: {
    loaders: [{
      test: /\.js$/,
      loaders: ['react-hot', 'babel'],
      include: path.join(__dirname, 'src')
    }, {
      test: /\.scss$/,
      loader: ExtractTextPlugin.extract("style-loader", "css-loader!sass-loader") // tell the plugin what to extract
    }]
  },
  resolve: {
    modulesDirectories: [ 'node_modules' ]
  }
};