mercurial/node.py
author Gregory Szorc <gregory.szorc@gmail.com>
Fri, 11 Mar 2016 21:23:34 -0800
changeset 28507 9bcbd9412225
parent 26980 18f50b8cbf1e
child 28585 a3f3fdac8433
permissions -rw-r--r--
encoding: make HFS+ ignore code Python 3 compatible unichr() doesn't exist in Python 3. chr() is the equivalent there. Unfortunately, we can't use chr() outright because Python 2 only accepts values smaller than 256. Also, Python 3 returns an int when accessing a character of a bytes type (s[x]). So, we have to ord() the values in the assert statement.

# 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 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])