webpack.config.js

const path = require('path');
const webpack = require('webpack');

const config = {
  context: __dirname,
  entry: [
    'react-hot-loader/patch',
    'webpack-dev-server/client?http://localhost:8080',
    'webpack/hot/only-dev-server',
    './js/ClientApp.jsx'
  ],
  devtool: 'cheap-eval-source-map',
  output: {
    path: path.join(__dirname, 'public'),
    filename: 'bundle.js',
    publicPath: '/public/'
  },
  devServer: {
    hot: true,
    publicPath: '/public/',
    historyApiFallback: true
  },
  resolve: {
    extensions: ['.js', '.jsx', '.json'],
    alias: {
      'react': 'preact-compat',
      'react-dom': 'preact-compat'
    }
  },
  stats: {
    colors: true,
    reasons: true,
    chunks: true
  },
  plugins: [
    new webpack.HotModuleReplacementPlugin(),
    new webpack.NamedModulesPlugin()
  ],
  module: {
    rules: [
      {
        enforce: 'pre',
        test: /\.jsx?$/,
        loader: 'eslint-loader',
        exclude: /node_modules/
      },
      {
        test: /\.jsx?$/,
        loader: 'babel-loader',
        include: [
          path.resolve('js'),
          path.resolve('node_modules/preact-compat/src')
        ]
      }
    ]
  }
};

if (process.env.NODE_ENV === 'production') {
  config.entry = './js/ClientApp.jsx';
  config.devtool = false;
  config.plugins = [];
}

module.exports = config;