view mercurial/node.py @ 26747:beff0b2481b3

dirstate: remove layering violation around writing dirstate out

This violation, which passes repo object to dirstate, was introduced
by 09bb1ee7e73e.

This patch uses 'False' instead of 'None' as default value of 'tr'
argument, to distinguish "None as repo.currenttransaction() result"
from "legacy invocation without explicit tr passing".

# 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

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

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

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

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