webpack-dev-server.config.js

const webpack = require('webpack')
const path = require('path')
const buildPath = path.resolve(__dirname, 'build')
const nodeModulesPath = path.resolve(__dirname, 'node_modules')
const TransferWebpackPlugin = require('transfer-webpack-plugin')
const ExtractTextPlugin = require('extract-text-webpack-plugin')

const sassLoaders = [
  'css-loader',
  'postcss-loader',
  'sass-loader?indentedSyntax=sass&includePaths[]=' + path.resolve(__dirname, './src')
]

const devFlagPlugin = new webpack.DefinePlugin({
  __DEV__: JSON.stringify(JSON.parse(process.env.DEBUG || 'false'))
})

const config = {
  //  Entry points to the project
  entry: [
    'webpack/hot/dev-server',
    'webpack/hot/only-dev-server',
    path.join(__dirname, '/src/index.js'),
  ],
  //  Config options on how to interpret requires imports
  resolve: {
    extensions: ['', '.js', '.jsx', '.sass', '.css'],
    //node_modules: ["web_modules", "node_modules"]  (Default Settings)
  },
  //Server Configuration options
  devServer:{
    contentBase: 'src/www',  //Relative directory for base of server
    devtool: 'eval',
    hot: true,        //Live-reload
    inline: true,
    port: 3000,        //Port Number
    host: 'localhost',  //Change to '0.0.0.0' for external facing server
  },
  devtool: 'eval',
  output: {
    path: buildPath,    //Path of output file
    filename: 'bundle.js',
  },
  plugins: [
    //Enables Hot Modules Replacement
    new webpack.HotModuleReplacementPlugin(),
    //Allows error warnings but does not stop compiling. Will remove when eslint is added
    new webpack.NoErrorsPlugin(),
    //Moves files
    new TransferWebpackPlugin([
      {from: 'www'},
    ], path.resolve(__dirname, "src")),
    //redux dev tools
    devFlagPlugin,

    new ExtractTextPlugin( "bundle.css" ),
  ],
  module: {
    loaders: [
      {
        //React-hot loader and
        test: /\.js$/,  //All .js files
        loaders: ['react-hot', 'babel-loader?presets[]=es2015&presets[]=react&presets[]=stage-0'],
        exclude: [nodeModulesPath],
      },
      {
        test: /\.sass$/,
        loader: ExtractTextPlugin.extract('style-loader', sassLoaders.join('!')),
      },
      {
        test: /\.(scss|css)$/,
        loader: 'style!css?modules&importLoaders=1&localIdentName=[name]__[local]___[hash:base64:5]!postcss!sass',
      },
      { test: /\.(png|jpg)$/,
        loader: 'url-loader?limit=8192'
      },
      { test: /\.svg$/,
        loader: 'svg-loader'
      },
    ],
  },
}

module.exports = config