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git_cl/git_cl.py

Index: git_cl/git_cl.py
===================================================================
--- git_cl/git_cl.py	(revision 72285)
+++ git_cl/git_cl.py	(working copy)
@@ -668,8 +668,18 @@
   hook = '%s/%s' % (settings.GetRoot(), hook)
   if not os.path.exists(hook):
     return
-  return RunCommand([hook, upstream_branch], error_ok=error_ok,

[ncarter (slow), 2011/01/29 02:19:05]

Sorry if my email wasn't totally clear: the entirety of my change was 7
characters, namely changing this line from:

return RunCommand([hook, ...

to:

return RunCommand(["env", hook, ...

This seemed to work, and didn't require platform-detection or parsing the
shebang.  What was not certain, was whether this approach worked across
cygwin/linux/mac.

I'd upload a patch, but my Windows machine is temporarily inaccessible (I just
moved offices).

-                    redirect_stdout=False)
+  # msysgit requires sys.executable to be present. This assumes all hooks are
+  # scripted in python. Which should be okay.
+  cmd = [hook, upstream_branch]    
+  if sys.platform == 'win32':
+    with open(hook, 'r') as f:
+      if f.readline().startswith('#!/usr/bin/python'):
+        cmd.insert(0, sys.executable)
+      else:
+        DieWithError('It seems your environment is msysgit, and the hook [%s] '
+                     'will not execute correctly. The hook must be scripted '
+                     'in Python for this to work.')
+  return RunCommand(cmd, error_ok=error_ok, redirect_stdout=False)
 
 
 def CMDpresubmit(parser, args):