Current Dev State

static/js/ketcher2/node_modules/inquirer/lib/utils/utils.js

@@ -0,0 +1,47 @@
+'use strict';
+var _ = require('lodash');
+var rx = require('rx-lite');
+var runAsync = require('run-async');
+
+
+/**
+ * Create an oversable returning the result of a function runned in sync or async mode.
+ * @param  {Function} func Function to run
+ * @return {rx.Observable} Observable emitting when value is known
+ */
+
+exports.createObservableFromAsync = function (func) {
+  return rx.Observable.defer(function () {
+    return rx.Observable.create(function (obs) {
+      runAsync(func, function (value) {
+        obs.onNext(value);
+        obs.onCompleted();
+      });
+    });
+  });
+};
+
+
+/**
+ * Resolve a question property value if it is passed as a function.
+ * This method will overwrite the property on the question object with the received value.
+ * @param  {Object} question - Question object
+ * @param  {String} prop     - Property to fetch name
+ * @param  {Object} answers  - Answers object
+ * @...rest {Mixed} rest     - Arguments to pass to `func`
+ * @return {rx.Obsersable}   - Observable emitting once value is known
+ */
+
+exports.fetchAsyncQuestionProperty = function (question, prop, answers) {
+  if (!_.isFunction(question[prop])) {
+    return rx.Observable.return(question);
+  }
+
+  return exports.createObservableFromAsync(function () {
+    var done = this.async();
+    runAsync(question[prop], function (value) {
+      question[prop] = value;
+      done(question);
+    }, answers);
+  });
+};