696 def checkexec(path):

   697     """

   698     Check whether the given path is on a filesystem with UNIX-like exec flags

   699 

   700     Requires a directory (like /foo/.hg)

   701     """

   702     fh, fn = tempfile.mkstemp("", "", path)

   703     os.close(fh)

   704     m = os.stat(fn).st_mode

   705     os.chmod(fn, m ^ 0111)

   706     r = (os.stat(fn).st_mode != m)

   707     os.unlink(fn)

   708     return r

   709