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view mercurial/node.py @ 30068:a76d5ba7ac43

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pull: grab wlock during pull because pull might move bookmarks and bookmark are protected by wlock, we have to grab wlock for pull :-( This required a small upgrade of the 'lockdelay' extension used by 'test-clone.t' because the delay must apply to a single lock only.
author Pierre-Yves David <pierre-yves.david@ens-lyon.org>
date Tue, 23 Aug 2016 23:47:59 +0200
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])