revlog: support writing generaldelta revlogs
With generaldelta switched on, deltas are always computed against the first
parent when adding revisions. This is done regardless of what revision the
incoming bundle, if any, is deltaed against.
The exact delta building strategy is subject to change, but this will not
affect compatibility.
Generaldelta is switched off by default.
#!/usr/bin/env python
# Copyright 2010 Intevation GmbH
# Author(s):
# Thomas Arendsen Hein <thomas@intevation.de>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
"""Create a Mercurial repository in revlog format 0
changeset: 0:a1ef0b125355
tag: tip
user: user
date: Thu Jan 01 00:00:00 1970 +0000
files: empty
description:
empty file
"""
import os, sys
files = [
('formatv0/.hg/00changelog.i',
'000000000000004400000000000000000000000000000000000000'
'000000000000000000000000000000000000000000000000000000'
'0000a1ef0b125355d27765928be600cfe85784284ab3'),
('formatv0/.hg/00changelog.d',
'756163613935613961356635353036303562366138343738336237'
'61623536363738616436356635380a757365720a3020300a656d70'
'74790a0a656d7074792066696c65'),
('formatv0/.hg/00manifest.i',
'000000000000003000000000000000000000000000000000000000'
'000000000000000000000000000000000000000000000000000000'
'0000aca95a9a5f550605b6a84783b7ab56678ad65f58'),
('formatv0/.hg/00manifest.d',
'75656d707479006238306465356431333837353835343163356630'
'35323635616431343461623966613836643164620a'),
('formatv0/.hg/data/empty.i',
'000000000000000000000000000000000000000000000000000000'
'000000000000000000000000000000000000000000000000000000'
'0000b80de5d138758541c5f05265ad144ab9fa86d1db'),
('formatv0/.hg/data/empty.d',
''),
]
def makedirs(name):
"""recursive directory creation"""
parent = os.path.dirname(name)
if parent:
makedirs(parent)
os.mkdir(name)
makedirs(os.path.join(*'formatv0/.hg/data'.split('/')))
for name, data in files:
f = open(name, 'wb')
f.write(data.decode('hex'))
f.close()
sys.exit(0)