view mercurial/node.py @ 19413:a4de0d3dc35a

run-tests: lock popen wait/poll In python2.4, any call to Popen() may attempt to wait on any active process, and wait is not thread-safe. Make it thread-safe. See http://bugs.python.org/issue1731717 for details.
author Brendan Cully <brendan@kublai.com>
date Wed, 17 Jul 2013 12:45:12 -0700
parents 25e572394f5c
children 1a5211f2f87f
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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.

import binascii

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

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

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