Enable building of ChronoShare.app

Temporarily disable integrated tests

Change-Id: I652e27f1a19dc9f5b3e0b1399e0fe015f61b3e81
diff --git a/gui/osx-auto-update-sparkle.mm b/gui/osx-auto-update-sparkle.mm
new file mode 100644
index 0000000..e3e3c3e
--- /dev/null
+++ b/gui/osx-auto-update-sparkle.mm
@@ -0,0 +1,61 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2013-2017, Regents of the University of California.
+ *
+ * This file is part of ChronoShare, a decentralized file sharing application over NDN.
+ *
+ * ChronoShare is free software: you can redistribute it and/or modify it under the terms
+ * of the GNU General Public License as published by the Free Software Foundation, either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * ChronoShare is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+ * PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+ *
+ * You should have received copies of the GNU General Public License along with
+ * ChronoShare, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * See AUTHORS.md for complete list of ChronoShare authors and contributors.
+ */
+
+#include "osx-auto-update-sparkle.hpp"
+
+#import <AppKit/AppKit.h>
+#import <Foundation/Foundation.h>
+#import <Sparkle/Sparkle.h>
+
+namespace ndn {
+namespace chronoshare {
+
+class OsxAutoUpdateSparkle::Impl
+{
+public:
+  SUUpdater* m_updater;
+};
+
+
+OsxAutoUpdateSparkle::OsxAutoUpdateSparkle(const std::string& updateUrl)
+  : m_impl(make_unique<Impl>())
+{
+  m_impl->m_updater = [[SUUpdater sharedUpdater] retain];
+  NSURL* url = [NSURL URLWithString:[NSString stringWithUTF8String:updateUrl.data()]];
+  [m_impl->m_updater setFeedURL:url];
+  [m_impl->m_updater setAutomaticallyChecksForUpdates:YES];
+  [m_impl->m_updater setUpdateCheckInterval:86400];
+}
+
+OsxAutoUpdateSparkle::~OsxAutoUpdateSparkle()
+{
+  [m_impl->m_updater release];
+  // presummably SUUpdater handles garbage collection
+}
+
+void
+OsxAutoUpdateSparkle::checkForUpdates()
+{
+  //[m_impl->m_updater checkForUpdatesInBackground];
+  [m_impl->m_updater checkForUpdates:nil];
+}
+
+} // namespace chronoshare
+} // namespace ndn