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view mercurial/node.py @ 14333:31a5973fcf96

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revlog: get rid of defversion defversion was a property (later option) on the store opener, used to propagate the changelog revlog format to the other revlogs, so they would be created with the same format. This required that the changelog instance was created before any other revlog; an invariant that wasn't directly enforced (or documented) anywhere. We now use the revlogv1 requirement instead, which is transfered to the store opener options. If this option is missing, v0 revlogs are created.
author Sune Foldager <cryo@cyanite.org>
date Mon, 16 May 2011 12:44:34 +0200
parents 25e572394f5c
children 1a5211f2f87f
line wrap: on
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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])