util.opener: if requested, use atomicfile even if the file doesn't exist
Right now, surprisingly enough, if you request an atomic file but the
file still doesn't exist, you get a regular file. AFAICS, the only time
this happens is during the initial creation of the dirstate.
"""
node.py - basic nodeid manipulation for mercurial
Copyright 2005, 2006 Matt Mackall <mpm@selenic.com>
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])