view mercurial/node.py @ 27718:6e1fba0fe453

convert: replace cache of (m,a,r) by (ma,r)

The next commit will rewrite the way we find changes between two
manifests. By making the cache not care about the difference between
added and modified files, we don't require the rewritten code to care
about that difference either. Also extract the call to ctx.status() to
simplify the next commit.

# 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 version 2 or any later version.

from __future__ import absolute_import

import binascii

# This ugly style has a noticeable effect in manifest parsing
hex = binascii.hexlify
bin = binascii.unhexlify

nullrev = -1
nullid = "\0" * 20
nullhex = hex(nullid)

# pseudo identifiers for working directory
# (they are experimental, so don't add too many dependencies on them)
wdirrev = 0x7fffffff
wdirid = "\xff" * 20

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