webpack.config.prod.js

const { CleanWebpackPlugin } = require('clean-webpack-plugin');
const webpack = require('webpack');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const path = require('path');

module.exports = {
  entry: './demo/src/index.js',
  externals: {
    'styled-components': {
      commonjs: 'styled-components',
      commonjs2: 'styled-components',
      amd: 'styled-components',
    },
  },
  output: {
    filename: 'bundle.js',
    path: path.resolve(__dirname, 'demo/dist'),
  },
  module: {
    rules: [
      {
        test: /\.(js|jsx)$/,
        exclude: /node_modules/,
        use: {
          loader: 'babel-loader',
        },
      },
      {
        test: /\.html$/,
        use: [
          {
            loader: 'html-loader',
          },
        ],
      },
      {
        test: /\.(woff(2)?|ttf|eot|svg)(\?v=\d+\.\d+\.\d+)?$/,
        use: [{
          loader: 'file-loader',
          options: {
            name: 'static/media/[name].[hash:8].[ext]',
          },
        }],
      },
      {
        test: /plugin\.css$/,
        loaders: [
          'style-loader',
          'css-loader',
        ],
      },
      {
        test: /\.css$/,
        use: [
          MiniCssExtractPlugin.loader,
          'css-loader',
        ],
      },
      {
        test: /\.styl$/,
        exclude: /node_modules/,
        use: [
          MiniCssExtractPlugin.loader,
          'css-loader',
          'stylus-loader',
        ],
      },
      {
        test: /\.(jpg|png|gif|jpeg)$/,
        loader: 'url-loader',
        options: {
          limit: 10000,
          name: 'static/media/[name].[hash:8].[ext]',
        },
      },
    ],
  },
  plugins: [
    new MiniCssExtractPlugin({ filename: '[name].css' }),
    new HtmlWebpackPlugin({
      template: 'demo/src/index.html',
      mountId: 'demo',
      title: 'YES',
    }),
    new CleanWebpackPlugin(),
    new webpack.IgnorePlugin(/jsdom$/),
  ],
  node: {
    fs: 'empty',
    net: 'empty',
    tls: 'empty',
  },
  resolve: {
    alias: {
      'styled-components': path.resolve(__dirname, 'node_modules', 'styled-components'),
      react: path.resolve('./node_modules/react')
    },
  },
};