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view mercurial/node.py @ 28761:be13a0fb84e8

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hghave: add hg06..hg39 hg output varies by version, this helps the hgbook hg 0.6 did not have a version command, so special case it... hg 0.7-0.8 had a version command which returned unknown... hg 0.8 added a --date flag to annotate hg 0.9 had a working version command!
author timeless <timeless@mozdev.org>
date Fri, 01 Apr 2016 13:20:47 +0000
parents a3f3fdac8433
children 0298a07f64d9
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# 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 = b"\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 = b"\xff" * 20

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