bundle2: safely read unpack data from part header
We use the same approach that the other unpack, as function is given the struct
format and his both responsible for reading the right amount of data from the
header and unpack the struct.
This give use flexibility if we decide to change the size of something in the
format before the release.
# 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.
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])