webpack.config.dev.js

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

export default {
  debug: true,
  devtool: 'cheap-module-eval-source-map', // more info:https://webpack.github.io/docs/build-performance.html#sourcemaps and https://webpack.github.io/docs/configuration.html#devtool
  noInfo: true, // set to false to see a list of every file being bundled.
  entry: [
    // must be first entry to properly set public path
    './src/webpack-public-path',
    'webpack-hot-middleware/client?reload=true',
    './src/index'
  ],
  target: 'web', // necessary per https://webpack.github.io/docs/testing.html#compile-and-test
  output: {
    // Note: Physical files are only output by the production build task `npm run build`.
    path: `${__dirname}/src`,
    filename: 'bundle.js'
  },
  plugins: [
    new webpack.DefinePlugin({
      'process.env.NODE_ENV': JSON.stringify('development'), // Tells React to build in either dev or prod modes. https://facebook.github.io/react/downloads.html (See bottom)
      __DEV__: true
    }),
    new webpack.HotModuleReplacementPlugin(),
    new webpack.NoErrorsPlugin(),
    new HtmlWebpackPlugin({     // Create HTML file that includes references to bundled CSS and JS.
      template: 'src/index.ejs',
      minify: {
        removeComments: true,
        collapseWhitespace: true
      },
      inject: true
    })
  ],
  module: {
    loaders: [
      { test: /\.js$/, include: path.join(__dirname, 'src'), loaders: ['babel'] },
      { test: /\.jsx$/, exclude: /node_modules/, loader: 'babel-loader' },
      { test: /\.json$/, exclude: /node_modules/, loader: 'json' },
      { test: /\.eot(\?v=\d+.\d+.\d+)?$/, loader: 'file' },
      { test: /\.woff(2)?(\?v=[0-9]\.[0-9]\.[0-9])?$/,
        loader: 'url-loader?limit=10000&mimetype=application/font-woff' },
      { test: /\.ttf(\?v=\d+.\d+.\d+)?$/,
        loader: 'file-loader?limit=10000&mimetype=application/octet-stream' },
      { test: /\.svg(\?v=\d+.\d+.\d+)?$/,
        loader: 'file-loader?limit=10000&mimetype=image/svg+xml' },
      { test: /\.(jpe?g|png|gif)$/i, loaders: ['file'] },
      { test: /\.ico$/, loader: 'file-loader?name=[name].[ext]' },
      { test: /(\.css|\.scss)$/, loaders: ['style', 'css?sourceMap', 'sass?sourceMap'] }
    ]
  },
  resolve: {
    extensions: ['', '.js', '.json', '.jsx', '.webpack.js', '.web.js']
  }
}