webpack.config.js

var webpack = require('webpack');
var path = require('path');
var ExtractTextPlugin = require('extract-text-webpack-plugin');
const UglifyJSPlugin = require('uglifyjs-webpack-plugin');


var BUILD_DIR = path.resolve(__dirname, './client/public/build');
var APP_DIR = path.resolve(__dirname, './client/app');
var STYLE_DIR = path.resolve(__dirname, './client/stylesheets');

var config = {
  entry: [
    "whatwg-fetch",
    "./client/stylesheets/application.scss",
    APP_DIR + '/main.jsx'
  ],
  output: {
    path: BUILD_DIR,
    filename: 'bundle.js'
  },
  module: {
    loaders: [{
      test: /\.jsx?/,
      include: APP_DIR,
      loader: 'babel-loader'
    }, {
      test: /\.scss$/,
      include: STYLE_DIR,
      loader: ExtractTextPlugin.extract('css-loader!sass-loader')
    }, {
      test: /\.woff(2)?(\?v=[0-9]\.[0-9]\.[0-9])?$/,
      loader: "url?limit=10000&mimetype=application/font-woff"
    }, {
      test: /\.(ttf|eot|svg)(\?v=[0-9]\.[0-9]\.[0-9])?$/,
      loader: "file"
    }]
  },
  resolve: {
    alias: {
      'react$': path.join(__dirname, 'node_modules', 'react', 'dist', 'react.min.js'),
      'react-dom$': path.join(__dirname, 'node_modules', 'react-dom', 'dist', 'react-dom.min.js')
    }
  },
  plugins: [
    new ExtractTextPlugin({
      filename: 'style.css',
      allChunks: true
    }),
    new webpack.DefinePlugin({
      "process.env": {
        // comment this out for longer errors in dev
        // but comment back in for production to
        // shrink bundle size
        // NODE_ENV: JSON.stringify("production")
      }
    }),
    new UglifyJSPlugin({
      sourceMap: true,
      uglifyOptions: { ecma: 8 }
    })
  ]
};

module.exports = config;