view mercurial/node.py @ 24402:c2287f203ec4

treemanifest: add configuration for using treemanifest type

This change adds boolean configuration option
experimental.treemanifest. When the option is enabled, manifests are
parsed into the new treemanifest type.

Tests can be now run using treemanifest by switching the config option
default in localrepo._applyrequirements(). Tests pass even when made
to randomly choose between manifestdict and treemanifest, suggesting
that the two types produce identical manifests (so e.g. a manifest
revlog entry written from a treemanifest can be parsed by the
manifestdict code).

# 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])