Add support for iOS application bundle to GN.

build/config/ios/ios_sdk.py

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+import os
 import subprocess
 import sys
 
-# This script returns the path to the SDK of the given type. Pass the type of
-# SDK you want, which is typically "iphone" or "iphonesimulator".
+# This script prints information about the build system, the operating
+# system and the iOS SDK (depending on the platform "iphonesimulator"
+# or "iphoneos" generally).
 #
 # In the GYP build, this is done inside GYP itself based on the SDKROOT
 # variable.
 
-if len(sys.argv) != 2:
-  print "Takes one arg (SDK to find)"
-  sys.exit(1)
+def FormatVersion(version):
+  """Converts Xcode version to a format required for Info.plist."""
+  version = version.replace('.', '')
+  version = version + '0' * (3 - len(version))
+  return version.zfill(4)
 
-print subprocess.check_output(['xcodebuild', '-version', '-sdk',
-                               sys.argv[1], 'Path']).strip()
+
+def PrintXcodeVersion():
+  """Prints the Xcode version and build number."""
+  lines = subprocess.check_output(['xcodebuild', '-version']).splitlines()
+  print FormatVersion(lines[0].split()[-1])
+  print lines[-1].split()[-1]
+
+
+def PrintMachineOSBuild():
+  """Prints OS build number."""
+  subprocess.check_call(['sw_vers', '-buildVersion'])
+
+
+def PrintSDKPathAndVersion(platform):
+  """Prints the SDK path and version for |platform|."""
+  subprocess.check_call(['xcodebuild', '-version', '-sdk',
+      platform, 'Path', 'SDKVersion'])
+
+
+if __name__ == '__main__':
+  if len(sys.argv) != 2:
+    sys.stderr.write(
+        'usage: %s [iphoneos|iphonesimulator]\n' %
+        os.path.basename(sys.argv[0]))
+    sys.exit(1)
+
+  PrintSDKPathAndVersion(sys.argv[1])
+  PrintXcodeVersion()
+  PrintMachineOSBuild()