Mercurial > hg

view mercurial/node.py @ 27635:e9f099ede405

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
tests: only stat a test file if we don't already know its "cost"
author Bryan O'Sullivan <bos@serpentine.com>
date Mon, 04 Jan 2016 21:54:46 -0800
parents 18f50b8cbf1e
children a3f3fdac8433
line wrap: on
line source

# 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])