Merge pull request #322 from github/fixes/push-pull-buttons

Fix to disable the pull button if there is no remote

Author: shana

src/GitHub.Api/RepositoryManager.cs

@@ -519,7 +519,15 @@ private void LoadRemotesFromConfig()
                 return remote;
             }
 
-            return config.GetRemotes().FirstOrDefault();
+            using (var remoteEnumerator = config.GetRemotes().GetEnumerator())
+            {
+                if (remoteEnumerator.MoveNext())
+                {
+                    return remoteEnumerator.Current;
+                }
+            }
+
+            return null;
         }
 
         private ConfigBranch? GetActiveBranch()

src/UnityExtension/Assets/Editor/GitHub.Unity/UI/HistoryView.cs

@@ -329,7 +329,7 @@ public void OnEmbeddedGUI()
                 }
 
                 var pushButtonText = statusAhead > 0 ? String.Format(PushButtonCount, statusAhead) : PushButton;
-                GUI.enabled = statusBehind == 0;
+                GUI.enabled = currentRemote != null && statusBehind == 0;
                 var pushClicked = GUILayout.Button(pushButtonText, Styles.HistoryToolbarButtonStyle);
                 GUI.enabled = true;
                 if (pushClicked &&