805     '''return an is_link() function with default to fallback'''

   805     '''return an is_link() function with default to fallback'''

   806     if checklink(path):

   806     if checklink(path):

   807         return lambda x: os.path.islink(os.path.join(path, x))

   807         return lambda x: os.path.islink(os.path.join(path, x))

   808     return fallback

   808     return fallback

   809 

   809 

   810 # Platform specific variants

   813 # Platform specific variants

   811 if os.name == 'nt':

   814 if os.name == 'nt':

   812     import msvcrt

   815     import msvcrt

   813     nulldev = 'NUL:'

   816     nulldev = 'NUL:'

   814 

   817 

   931     except ImportError:

   934     except ImportError:

   932         pass

   935         pass

   933 

   936 

   934 else:

   937 else:

   935     nulldev = '/dev/null'

   938     nulldev = '/dev/null'

   938 

   939 

   939     def rcfiles(path):

   940     def rcfiles(path):

   940         rcs = [os.path.join(path, 'hgrc')]

   941         rcs = [os.path.join(path, 'hgrc')]

   941         rcdir = os.path.join(path, 'hgrc.d')

   942         rcdir = os.path.join(path, 'hgrc.d')

   942         try:

   943         try: