fix: retry finding port when port is null and get ports in sequence

Author: alexander-akait

lib/utils/findPort.js

@@ -1,12 +1,26 @@
 'use strict';
 
-const { getPortPromise } = require('portfinder');
+const pRetry = require('p-retry');
+const portfinder = require('portfinder');
 const defaultPort = require('./defaultPort');
 const defaultTo = require('./defaultTo');
 const tryParseInt = require('./tryParseInt');
 
+function runPortFinder() {
+  return new Promise((resolve, reject) => {
+    portfinder.basePort = defaultPort;
+    portfinder.getPort((error, port) => {
+      if (error) {
+        return reject(error);
+      }
+
+      return resolve(port);
+    });
+  });
+}
+
 function findPort(port) {
-  if (typeof port !== 'undefined') {
+  if (port) {
     return Promise.resolve(port);
   }
 
@@ -19,10 +33,7 @@ function findPort(port) {
     3
   );
 
-  return getPortPromise({
-    port: defaultPort,
-    stopPort: defaultPort + defaultPortRetry,
-  });
+  return pRetry(runPortFinder, { retries: defaultPortRetry });
 }
 
 module.exports = findPort;