webpack.config.dev.js

import webpack from 'webpack';
import HtmlWebpackPlugin from 'html-webpack-plugin';
import path from 'path';

export default {
  resolve: {
    extensions: ['', '.js']
  },
  debug: true,
  devtool: 'eval-source-map',
  noInfo: false, // hide a list of files being bundled?
  entry: [
    // must be first entry to properly set public path
    './src/webpack-public-path',
    'webpack-hot-middleware/client?reload=true',
    path.join(__dirname, 'src/index.js') // Defining path seems necessary for this to work consistently on Windows machines.
  ],
  target: 'web', // necessary per https://webpack.github.io/docs/testing.html#compile-and-test
  output: {
    // physical files are only output by the production build task `npm run build`.
    path: path.join(__dirname, 'dist'),
    publicPath: '/',
    filename: 'bundle.js'
  },
  plugins: [
    new webpack.DefinePlugin({
      'process.env.NODE_ENV': JSON.stringify('development'),
      __DEV__: true
    }),
    new webpack.HotModuleReplacementPlugin(),
    new webpack.NoErrorsPlugin(),
    new HtmlWebpackPlugin({
      // Create HTML file that includes references to bundled CSS and JS.
      template: 'src/index.ejs',
      minify: {
        removeComments: true,
        collapseWhitespace: true
      },
      inject: true
    })
  ],
  module: {
    loaders: [
      { test: /\.jsx?$/, exclude: /node_modules/, loaders: ['babel'] }
    ]
  }
};