webpack.config.js

var path = require('path')
var webpack = require('webpack')
var publicPath = 'http://localhost:4001/'

var env = process.env.MIX_ENV || 'dev'
var prod = env === 'prod'

var entry = './web/static/js/app.js'
var hot = 'webpack-hot-middleware/client?path=' +
  publicPath + '__webpack_hmr'

var plugins = [
  new webpack.optimize.OccurrenceOrderPlugin(),
  new webpack.NoErrorsPlugin(),
  new webpack.DefinePlugin({
    __PROD: prod,
    __DEV: env === 'dev'
  })
]

if (env === 'dev') {
  plugins.push(new webpack.HotModuleReplacementPlugin())
}

module.exports = {
  devtool: prod ? null : 'cheap-module-eval-source-map',
  entry: prod ? entry : [hot, entry],
  output: {
    path: path.resolve(__dirname) + '/priv/static/js',
    filename: 'index.bundle.js',
    publicPath: publicPath
  },
  plugins: plugins,
  module: {
    loaders: [
      {
        test: /\.jsx?$/,
        loaders: ['babel'],
        exclude: path.resolve(__dirname, 'node_modules')
      }
    ]
  }
}