view mercurial/node.py @ 32515:e70d6dbde713

bundle2: move function building obsmarker-part in the bundle2 module

We move it next to similar part building functions. We will need it for the
"writenewbundle" logic. This will allow us to easily include obsmarkers in
on-disk bundle, a necessary step before having `hg strip` also operate on
markers.

(Yes, the bundle2 module was already too large, but there any many
interdependencies between its components so it is non-trivial to split, this is
a quest for another adventure.)

# 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])