mercurial/node.py

hgweb: break templater -> templater circular reference

The problem were some functions passed in the "defaults" argument
during the templater creation which use "self.t" directly.  This
creates the cycle:

 hgweb object
  -> templater object
      -> defaults dict
          -> footer function
              -> hgweb object

Instead of completely avoding the cycle, we break it after using
the templater.

"""
node.py - basic nodeid manipulation for mercurial

Copyright 2005, 2006 Matt Mackall <[e-mail]>

This software may be used and distributed according to the terms
of the GNU General Public License, incorporated herein by reference.
"""

from demandload import demandload
demandload(globals(), "binascii")

nullrev = -1
nullid = "\0" * 20

def hex(node):
    return binascii.hexlify(node)

def bin(node):
    return binascii.unhexlify(node)

def short(node):
    return hex(node[:6])