mercurial/node.py

Fix to handle case of empty list for roots or heads in nodesbetween.

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

Copyright 2005 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.
"""

import sha, binascii

nullid = "\0" * 20

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

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

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