mercurial/node.py
author Gregory Szorc <gregory.szorc@gmail.com>
Wed, 07 Feb 2018 16:29:05 -0800
changeset 36111 cd6ab329c5c7
parent 32704 af854b1b36f8
child 36275 f574cc00831a
permissions -rw-r--r--
wireprototypes: move wire protocol response types to new module We'll be introducing more types as part of wire protocol version 2. These types are shared between the command handling code (in wireproto.py) and the protocol/transport code in wireprotoserver.py. So they need to go in a new module to prevent a cycle. The types are aliased into the wireproto module, so API compatibility is preserved. Differential Revision: https://phab.mercurial-scm.org/D2088

# 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 = 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
wdirhex = hex(wdirid)

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