mac: Let `mac-tool flock` exit with the exit code of the child program.

pylib/gyp/mac_tool.py

 #!/usr/bin/env python
 # Copyright (c) 2012 Google Inc. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Utility functions to perform Xcode-style build steps.
 
 These functions are executed via gyp-mac-tool when using the Makefile generator.
 """
 
 import fcntl
 import os
 import plistlib
 import re
 import shutil
 import string
 import subprocess
 import sys
 
 
 def main(args):
   executor = MacTool()
-  executor.Dispatch(args)
+  exit_code = executor.Dispatch(args)
+  if exit_code is not None:
+    sys.exit(exit_code)
 
 
 class MacTool(object):
   """This class performs all the Mac tooling steps. The methods can either be
   executed directly, or dispatched from an argument list."""
 
   def Dispatch(self, args):
     """Dispatches a string command to a method."""
     if len(args) < 1:
       raise Exception("Not enough arguments")
 
     method = "Exec%s" % self._CommandifyName(args[0])
-    getattr(self, method)(*args[1:])
+    return getattr(self, method)(*args[1:])

[Nico, 2012/02/16 02:13:46]

ExecFlock() below does `return subprocess.call()`

 
   def _CommandifyName(self, name_string):
     """Transforms a tool name like copy-info-plist to CopyInfoPlist"""
     return name_string.title().replace('-', '')
 
   def ExecCopyBundleResource(self, source, dest):
     """Copies a resource file to the bundle/Resources directory, performing any
     necessary compilation on each resource."""
     extension = os.path.splitext(source)[1].lower()
     if os.path.isdir(source):
@@ skipping 146 matching lines @@
   def _Relink(self, dest, link):
     """Creates a symlink to |dest| named |link|. If |link| already exists,
     it is overwritten."""
     if os.path.lexists(link):
       os.remove(link)
     os.symlink(dest, link)
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv[1:]))