webpack.config.js

const path = require('path');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const OptimizeCssAssetsPlugin = require('optimize-css-assets-webpack-plugin');
const HtmlWebpackPlugin = require('html-webpack-plugin');

module.exports = {
  optimization: {
    minimizer: [new OptimizeCssAssetsPlugin({})],
  },
  module: {
    rules: [
      {
        test: /\.(s*)css$/,
        use: [
          {
            loader: MiniCssExtractPlugin.loader,
          },
          'css-loader',
          'sass-loader'
        ]
      },
      {
        test: /\.pug$/,
        use: [
          'pug-loader',
        ]
      },
      {
        test: /\.(png|jp(e*)g|svg)$/,
        use: [{
          loader: 'url-loader',
          options: {
            limit: 8000,
            name: '[name].[ext]',
            publicPath: (url, resourcePath, context) => {
              const relativePath = path.relative(context, resourcePath);

              if (/partners/i.test(relativePath)) {
                return `dist/${url}`;
              }
              return `${url}`;
            }
          }
        }]
      }
    ]
  },
  plugins: [
    new MiniCssExtractPlugin({
      filename: 'main.[hash].css',
    }),
    new HtmlWebpackPlugin({
      template: 'src/index.pug',
      filename: '../index.html'
    }),
    new HtmlWebpackPlugin({
      template: 'src/prirucka.pug',
      filename: '../prirucka/index.html'
    }),
    new HtmlWebpackPlugin({
      template: 'src/en.pug',
      filename: '../en.html'
    }),
  ]
};