供應商配置（DllPlugin）

注意：output.library 和 name（在 DllPlugin 中）必須相同。

const path = require('path');
const webpack = require('webpack');
const ExtractTextPlugin = require('extract-text-webpack-plugin');
const extractCSS = new ExtractTextPlugin('vendor.css');
const isDevelopment = process.env.NODE_ENV !== 'production';

module.exports = {
  resolve: {
    extensions: ['.js'],
  },
  module: {
    rules: [
      { test: /\.(png|woff|woff2|eot|ttf|svg)$/, loader: 'url-loader?limit=100000' },
      { test: /\.s?css$/i, loader: extractCSS.extract(['css-loader?minimize', 'sass-loader']) },
      { test: /\.json$/, loader: 'json-loader' },
    ],
  },
  entry: {
    vendor: [
      'babel-polyfill',
      'font-awesome/scss/font-awesome.scss',
      'bootstrap/scss/bootstrap.scss',
      'jquery',
      'history',
      'react',
      'react-dom',
      'redux',
      'react-redux',
      'react-router',
      'react-router-dom',
      'react-router-redux',
      'redux-thunk',
    ],
  },
  output: {
    path: path.resolve('./dist'),
    filename: '[name].js',
    library: '[name]_[hash]',
  },
  plugins: [
    extractCSS,
    new webpack.DllPlugin({
      path: path.join(__dirname, 'dist', '[name]-manifest.json'),
      name: '[name]_[hash]',
    })
  ].concat(isDevelopment ? [] : [
    new webpack.optimize.UglifyJsPlugin({
      beautify: false,
      comments: false,
    }),
  ]),
};