refactor!: do not copy JS lib to platform project (#1269)

lib/retry.js

@@ -0,0 +1,43 @@
+/*
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+*/
+
+'use strict';
+
+var events = require('cordova-common').events;
+
+/**
+ * Retry a promise-returning function a number of times, propagating its
+ * results on success or throwing its error on a failed final attempt.
+ *
+ * @arg {Number}   attemptsLeft    - The number of times to retry the passed call.
+ * @arg {Function} promiseFunction - A function that returns a promise.
+ * @arg {...}                      - Arguments to pass to promiseFunction.
+ *
+ * @returns {Promise}
+ */
+module.exports.retryPromise = async function (attemptsLeft, promiseFunction, ...args) {
+    while (true) {
+        try {
+            return await promiseFunction(...args);
+        } catch (error) {
+            if (--attemptsLeft < 1) throw error;
+            events.emit('verbose', 'A retried call failed. Retrying ' + attemptsLeft + ' more time(s).');
+        }
+    }
+};