webpack.config.js

const webpack = require('webpack');
const path = require('path');

const ExtractTextPlugin = require('extract-text-webpack-plugin');

const BUILD_DIR = path.resolve(__dirname, 'docs');
const APP_DIR = path.resolve(__dirname, 'src');

const config = {
  resolve: {
    extensions: [ '.js', '.jsx', '.scss' ],
  },

  entry: `${APP_DIR}/index.jsx`,
  output: {
    path: BUILD_DIR,
    filename: 'assets/bundle.js',
  },
  module: {
    loaders: [
      {
        test: /\.jsx?/,
        loader: 'babel-loader',
        query: {
          presets: [ '@babel/preset-react', '@babel/preset-env' ],
        },
      },
      {
        test: /\.s?css$/,
        loaders: ExtractTextPlugin.extract({
          fallbackLoader: 'style-loader',
          loader: 'css-loader!sass-loader!sass-resources-loader',
        }),
      },
      { test: /\.png$/, loader: 'url-loader?limit=100000' },
      { test: /\.jpg$/, loader: 'file-loader' },
      { test: /\.json$/, loader: 'json-loader' },
      {
        test: /\.woff2?(\?v=[0-9]\.[0-9]\.[0-9])?$/,
        loader: 'url-loader',
      },
      {
        test: /\.(ttf|eot|svg)(\?[\s\S]+)?$/,
        loader: 'file-loader',
      },
    ],
  },

  plugins: [
    new webpack.LoaderOptionsPlugin({
      options: {
        output: {
          path: BUILD_DIR,
        },
        sassResources: [ './src/styles/shared.scss' ],
        context: path.resolve(__dirname), // must evaluate to root of project
      },
    }),
    new webpack.ProvidePlugin({
      $: 'jquery',
      jQuery: 'jquery',
      'window.jQuery': 'jquery',
      React: 'react',

      Tether: 'tether',
      'window.Tether': 'tether',
      Alert: 'exports-loader?Alert!bootstrap/js/dist/alert',
      Button: 'exports-loader?Button!bootstrap/js/dist/button',
      Carousel: 'exports-loader?Carousel!bootstrap/js/dist/carousel',
      Collapse: 'exports-loader?Collapse!bootstrap/js/dist/collapse',
      Dropdown: 'exports-loader?Dropdown!bootstrap/js/dist/dropdown',
      Modal: 'exports-loader?Modal!bootstrap/js/dist/modal',
      Popover: 'exports-loader?Popover!bootstrap/js/dist/popover',
      Scrollspy: 'exports-loader?Scrollspy!bootstrap/js/dist/scrollspy',
      Tab: 'exports-loader?Tab!bootstrap/js/dist/tab',
      Tooltip: 'exports-loader?Tooltip!bootstrap/js/dist/tooltip',
      Util: 'exports-loader?Util!bootstrap/js/dist/util',
    }),
    new ExtractTextPlugin({ filename: 'assets/styles.css', allChunks: true }),
    new webpack.optimize.UglifyJsPlugin(),
  ],
};

module.exports = config;