webpack.prod.config.js

var path = require('path');
var webpack = require('webpack');
var HtmlWebpackPlugin = require('html-webpack-plugin');
var ExtractTextPlugin = require('extract-text-webpack-plugin');

module.exports = {
  devtool: 'source-map',
  entry: [
    './src/index'
  ],
  output: {
    path: path.join(__dirname, 'dist'),
    filename: '[name].js'
  },
  plugins: [
    new webpack.optimize.OccurenceOrderPlugin(),
    new webpack.optimize.CommonsChunkPlugin({
      name: 'vendors',
      minChunks(module, count) {
        return (
          module.resource &&
          module.resource.indexOf(path.resolve('node_modules')) === 0
        )
      }
    }),
    new HtmlWebpackPlugin({
      title: 'React redux hot demo',
      template: path.join(__dirname, 'assets/index-template.html')
    }),
    new webpack.DefinePlugin({
      "process.env": {
        NODE_ENV: JSON.stringify('production'),
        'PORT': JSON.stringify('8080'),
        'WS_PORT': JSON.stringify('8082')
      }
    }),
    new webpack.optimize.UglifyJsPlugin({
      compressor: {
        warnings: false
      }
    }),
    new ExtractTextPlugin('[name]-[hash].min.css')
  ],
  resolve: {
    extensions: ['', '.js'],
    root: path.join(__dirname, 'src')
  },

    // ESLint options
    eslint: {
        configFile: '.eslintrc',
        failOnWarning: false,
        failOnError: true
    },

  module: {
    preLoaders: [
      {
        test: /\.css$/,
        loader: 'stripcomment'
      },
    {
        test: /\.js$/,
        exclude: /node_modules/,
        loader: 'eslint'
    }
    ],
    loaders: [{
      test: /\.js$/,
      loaders: ['babel'],
      include: path.join(__dirname, 'src')
    }, {
      test: /\.scss$/,
      loader: ExtractTextPlugin.extract('style', 'css!postcss!sass')
    }, {
      test: /\.json/,
      loaders: ['json-loader']
    },
    {
      test: /\.(graphql|gql)$/,
      exclude: /node_modules/,
      loader: 'graphql-tag/loader',
    }]
  },
    postcss: [
        require('autoprefixer')
    ]
};