webpack.config.prod.js

import webpack from 'webpack';  // eslint-disable-line
import ExtractTextPlugin from 'extract-text-webpack-plugin';
import WebpackMd5Hash from 'webpack-md5-hash';
import HtmlWebpackPlugin from 'html-webpack-plugin';
import path from 'path';

const GLOBALS = {
  'process.env.NODE_ENV': JSON.stringify('production'),
  __DEV__: false,
};

const config = {
  entry: {
    app: [path.resolve(__dirname, 'src/index')],
  },

  output: {
    path: path.resolve(__dirname, 'dist'),
    publicPath: '/',
    filename: '[name].[hash].js',
  },

  target: 'web',

  resolve: {
    extensions: ['*', '.js', '.jsx', '.json'],
  },

  devtool: 'source-map',

  plugins: [
    // Hash the files using MD5 so that their names change when the content changes.
    new WebpackMd5Hash(),

    new webpack.DefinePlugin(GLOBALS),

    new ExtractTextPlugin('[name].[contenthash].css'),

    new HtmlWebpackPlugin({
      template: path.join(__dirname, 'src', 'index.ejs'),
      favicon: path.join(__dirname, 'src', 'favicon.ico'),
      minify: {
        removeComments: true,
        collapseWhitespace: true,
        removeRedundantAttributes: true,
        useShortDoctype: true,
        removeEmptyAttributes: true,
        removeStyleLinkTypeAttributes: true,
        keepClosingSlash: true,
        minifyJS: true,
        minifyCSS: true,
        minifyURLs: true,
      },
      inject: true,
      // Note that you can add custom options here if you need to handle other custom logic in index.html
      // To track JavaScript errors via TrackJS, sign up for a free trial at TrackJS.com and enter your token below.
      trackJSToken: '',
      chunks: ['commons', 'app'],
    }),

    new webpack.optimize.UglifyJsPlugin({ sourceMap: true }),
  ],

  module: {
    rules: [
      {
        test: /\.jsx?$/,
        exclude: /node_modules/,
        use: ['babel-loader'],
      },
      {
        test: /\.eot(\?v=\d+.\d+.\d+)?$/,
        use: [
          {
            loader: 'url-loader',
            options: {
              name: '[name].[ext]',
            },
          },
        ],
      },
      {
        test: /\.woff(2)?(\?v=[0-9]\.[0-9]\.[0-9])?$/,
        use: [
          {
            loader: 'url-loader',
            options: {
              limit: 10000,
              mimetype: 'application/font-woff',
              name: '[name].[ext]',
            },
          },
        ],
      },
      {
        test: /\.[ot]tf(\?v=\d+.\d+.\d+)?$/,
        use: [
          {
            loader: 'url-loader',
            options: {
              limit: 10000,
              mimetype: 'application/octet-stream',
              name: '[name].[ext]',
            },
          },
        ],
      },
      {
        test: /\.svg(\?v=\d+\.\d+\.\d+)?$/,
        use: [
          {
            loader: 'url-loader',
            options: {
              limit: 10000,
              mimetype: 'image/svg+xml',
              name: '[name].[ext]',
            },
          },
        ],
      },
      {
        test: /\.(jpe?g|png|gif|ico)$/i,
        use: [
          {
            loader: 'file-loader',
            options: {
              name: '[name].[ext]',
            },
          },
        ],
      },
      {
        test: /(\.css|\.scss|\.sass)$/,
        exclude: /node_modules/,
        use: ExtractTextPlugin.extract({
          use: [
            {
              loader: 'css-loader',
              options: {
                minimize: true,
                sourceMap: true,
              },
            }, {
              loader: 'postcss-loader',
              options: {
                plugins: () => [
                  require('autoprefixer'),
                ],
                sourceMap: true,
              },
            }, {
              loader: 'sass-loader',
              options: {
                includePaths: [path.resolve(__dirname, 'src', 'scss')],
                sourceMap: true,
              },
            },
          ],
        }),
      },
    ],
  },
};

export default config;