webpack.config.prod.js

import webpack from 'webpack';
import path from 'path';
import ExtractTextPlugin from 'extract-text-webpack-plugin';

const nodeModulesPath = path.resolve(__dirname, 'node_modules');
const buildPath = path.resolve(__dirname, 'dist');
const entryPath = path.resolve(__dirname, 'src', 'js', 'index.js');

const GLOBALS = {
  'process.env.NODE_ENV': JSON.stringify('production')
};

export default {
  debug: true,
  devtool: 'cheap-module-eval-source-map',
  noInfo: false,
  entry: entryPath,
  target: 'web', // bundle app the way web browsers can understand
  output: {
    path: buildPath,
    publicPath: '/',
    filename: 'bundle.js'
  },
  devServer: {
    contentBase: './dist'
  },
  plugins: [
    new webpack.optimize.OccurenceOrderPlugin(),
    new webpack.DefinePlugin(GLOBALS),
    new ExtractTextPlugin('styles.css'),
    new webpack.optimize.DedupePlugin(),
    new webpack.optimize.UglifyJsPlugin()
  ],
  module: {
    loaders: [
      {
        test: /\.js$/,
        loader: 'babel',
        exclude: [nodeModulesPath]
      },
      // SASS
      {
        test: /css\/.+.(scss|css)$/,
        loader: 'style!css!sass'
      },
      {
        test: /\.(png|jpg|gif)$/,
        loader: 'url?limit=25000'
      },

      // Needed for the css-loader when [bootstrap-webpack](https://github.com/bline/bootstrap-webpack)
      // loads bootstrap's css.
      {
        test: /\.woff(\?v=\d+\.\d+\.\d+)?$/,
        loader: 'url?limit=10000&mimetype=application/font-woff'
      },
      {
        test: /\.woff2(\?v=\d+\.\d+\.\d+)?$/,
        loader: 'url?limit=10000&mimetype=application/font-woff'
      },
      {
        test: /\.ttf(\?v=\d+\.\d+\.\d+)?$/,
        loader: 'url?limit=10000&mimetype=application/octet-stream'
      },
      {
        test: /\.eot(\?v=\d+\.\d+\.\d+)?$/,
        loader: 'file'
      },
      {
        test: /\.svg(\?v=\d+\.\d+\.\d+)?$/,
        loader: 'url?limit=10000&mimetype=image/svg+xml'
      }
    ]
  }
};