text: const path = require('path');
  const glob = require('glob');
  const MiniCssExtractPlugin = require('mini-css-extract-plugin');
  const UglifyJsPlugin = require('uglifyjs-webpack-plugin');
  const OptimizeCSSAssetsPlugin = require('optimize-css-assets-webpack-plugin');
  const CopyWebpackPlugin = require('copy-webpack-plugin');
  
  module.exports = (env, options) => ({
    optimization: {
      minimizer: [
        new UglifyJsPlugin({ cache: true, parallel: true, sourceMap: false }),
        new OptimizeCSSAssetsPlugin({})
      ]
    },
    entry: {
        './js/app.js': ['./js/app.js'].concat(glob.sync('./vendor/**/*.js'))
    },
    output: {
      filename: 'app.js',
      path: path.resolve(__dirname, '../priv/static/js')
    },
    module: {
      rules: [
        {
          test: /\.js$/,
          exclude: /node_modules/,
          use: {
            loader: 'babel-loader'
          }
        },
        {
          test: /\.css$/,
          use: [MiniCssExtractPlugin.loader, 'css-loader']
        }
      ]
    },
    plugins: [
      new MiniCssExtractPlugin({ filename: '../css/app.css' }),
      new CopyWebpackPlugin([{ from: 'static/', to: '../' }])
    ],
    externals: {
     jquery: 'jQuery'
    }
  });
  