view mercurial/node.py @ 32550:b98199a5c3e1

cleanup: rename all iteritems methods to items and add iteritems alias

Due to a quirk of our module importer setup on Python 3, all calls and
definitions of methods named iteritems() get rewritten at import
time. Unfortunately, this means there's not a good portable way to
access these methods from non-module-loader'ed code like our unit
tests. This change fixes that, which also unblocks test-manifest.py
from passing under Python 3.

We don't presently define any itervalues methods, or we'd need to give
those similar treatment.

# node.py - basic nodeid manipulation for mercurial
#
# Copyright 2005, 2006 Matt Mackall <[e-mail]>
#
# 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)

# Phony node value to stand-in for new files in some uses of
# manifests.
newnodeid = '!' * 20
addednodeid = ('0' * 15) + 'added'
modifiednodeid = ('0' * 12) + 'modified'

wdirnodes = {newnodeid, addednodeid, modifiednodeid}

# 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])