webpack.config.js

const { resolve } = require('path');
const webpack = require('webpack');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const ExtractTextPlugin = require('extract-text-webpack-plugin');

let { appConfig, theme } = require('./custom/index.js');

appConfig = appConfig || {
  title: 'Test App',
  favicon: '',
  template: 'index-template.ejs'
};

theme = theme || {};

const title    = appConfig.title || 'Test App';
const favicon  = appConfig.favicon || '';
const template = appConfig.template || 'index-template.ejs';

module.exports = {
  entry: [
    'react-hot-loader/patch',
    // activate HMR for React

    'webpack-dev-server/client?http://localhost:5000',
    // bundle the client for webpack-dev-server
    // and connect to the provided endpoint

    'webpack/hot/only-dev-server',
    // bundle the client for hot reloading
    // only- means to only hot reload for successful updates

    './index.js'
    // the entry point of our app
  ],
  output: {
    filename: 'bundle.js',
    // the output bundle

    path: resolve(__dirname, 'dist'),

    publicPath: '/'
    // necessary for HMR to know where to load the hot update chunks
  },

  context: resolve(__dirname, 'src'),

  devtool: 'inline-source-map',

  devServer: {
    hot: true,
    // enable HMR on the server

    port: 5000,

    contentBase: resolve(__dirname, 'dist'),
    // match the output path

    publicPath: '/',
    // match the output `publicPath`

    //fallback to root for other urls
    historyApiFallback: true
  },

  module: {
    rules: [
      {
        test: /\.(js|jsx)$/,
        use: [
          'babel-loader'
        ],
        exclude: /node_modules/
      },
      {
        test: /\.css$/,
        loader: ExtractTextPlugin.extract({fallback: 'style-loader', use:'css-loader'}),
      },      
      {
        test: /(\.less)$/,
        loader: ExtractTextPlugin.extract({
            fallback: 'style-loader', 
            use: `css-loader!less-loader?{modifyVars:${JSON.stringify(theme)}}`})
      },      
    ],
  },

  plugins: [
    new HtmlWebpackPlugin({title, favicon, template}),
    
    new ExtractTextPlugin("styles.css"),


    new webpack.HotModuleReplacementPlugin(),
    // enable HMR globally

    new webpack.NamedModulesPlugin(),
    // prints more readable module names in the browser console on HMR updates
  ],

  resolve: {
    extensions: ['.js', '.jsx'],
  }

};