webpack.config.js

const path = require("path");

/**
 * Define loaders
 * @return {Array}
 */
function getRules() {
  return [
    {
      test: /(\.js)/,
      exclude: /(node_modules)/,
      use: {
        loader: "babel-loader"
      }
    },
    {
      test: /(\.jpg|\.png)$/,
      use: [
        {
          loader: "url-loader",
          options: {
            limit: 10000
          }
        }
      ]
    },
    {
      test: /\.json/,
      loader: "json-loader"
    }
  ];
}

module.exports = ({
  dev,
  scripts: {
    fabricator: { src: fabSrc },
    toolkit: { src: scriptSrc }
  },
  dest
}) => {
  return {
    mode: dev ? "development" : "production",
    entry: {
      "fabricator/scripts/f": fabSrc,
      "toolkit/scripts/toolkit": scriptSrc
    },
    output: {
      path: path.resolve(__dirname, dest, "assets"),
      filename: "[name].js",
      pathinfo: dev
    },
    devtool: dev ? "cheap-module-eval-source-map" : false,
    module: {
      rules: getRules()
    }
  };
};