happypack

webpack.conf.js

/* this file is not transpiled through babel and some installs of node are v0.x */
/* eslint-disable no-console, no-var, prefer-template */

// 3rd party modules
var path = require('path');
var webpack = require('webpack');
var HappyPack = require('happypack');

// implementation
var buildMode = process.env.NODE_ENV || 'production';

// public
module.exports = {
  entry: './src/app/index.js',
  devtool: 'source-map',
  output: {
    filename: 'app.js',
    path: './dist'
  },
  devServer: {
    contentBase: './dist',
    host: '0.0.0.0',
    inline: true,
    port: 8083,
    stats: 'errors-only'
  },
  module: {
    loaders: [{
      loader: 'happypack/loader',
      test: /\.js?$/,
      exclude: /(node_modules|coverage|target)/,
      cacheDirectory: false
    }, {
      test: /\.svg$/,
      include: /assets/,
      loader: 'svg-inline'
    }, {
      test: /\.json$/,
      loader: 'json'
    }]
  },
  resolve: {
    root: [
      path.resolve('./src'),
      path.resolve('./node_modules')
    ]
  },
  plugins: [
    new HappyPack({
      loaders: [ 'babel?presets[]=babel-fast-presets/es2015-stage1,presets[]=react' ]
    })
  ]
};

if (buildMode === 'production') {
  module.exports.plugins.push(
    new webpack.optimize.UglifyJsPlugin({
      compress: {
        warnings: false
      }
    })
  );
  module.exports.plugins.push(
    new webpack.optimize.DedupePlugin()
  );
  module.exports.plugins.push(
    new webpack.optimize.AggressiveMergingPlugin()
  );
}