draft: refactor project so it sits on top of a standalone app

zero.Web.UI/node_modules/webpack-dev-server/lib/utils/processOptions.js

@@ -0,0 +1,44 @@
+'use strict';
+
+const createConfig = require('./createConfig');
+const defaultPort = require('./defaultPort');
+const findPort = require('./findPort');
+
+function processOptions(config, argv, callback) {
+  // processOptions {Promise}
+  if (typeof config.then === 'function') {
+    config
+      .then((conf) => processOptions(conf, argv, callback))
+      .catch((err) => {
+        // eslint-disable-next-line no-console
+        console.error(err.stack || err);
+        // eslint-disable-next-line no-process-exit
+        process.exit(1);
+      });
+
+    return;
+  }
+
+  // Taken out of yargs because we must know if
+  // it wasn't given by the user, in which case
+  // we should use portfinder.
+  const options = createConfig(config, argv, { port: defaultPort });
+
+  if (options.socket) {
+    callback(config, options);
+  } else {
+    findPort(options.port)
+      .then((port) => {
+        options.port = port;
+        callback(config, options);
+      })
+      .catch((err) => {
+        // eslint-disable-next-line no-console
+        console.error(err.stack || err);
+        // eslint-disable-next-line no-process-exit
+        process.exit(1);
+      });
+  }
+}
+
+module.exports = processOptions;