view mercurial/node.py @ 23585:94b25d71dd0f

bundle2.unbundlepart: decouple mandatory from parttype

Encoding whether or not a part is mandatory in the capitalization of the
parttype is unintuitive and error-prone.  This sequence of patches separates
these concerns in the API to reduce programmer error and pave the way for
a potential change in how this information is transmitted over the wire.

This patch separates the two pieces of information when reading the part header
so that it's unnecessary to know how they were combined during transmission.

# 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.

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])