Mercurial > hg
view tests/testlib/ext-sidedata-5.py @ 46858:85e3a630cad9
revlog: move the details of revlog "v2" index inside revlog.utils.constants
the revlog module is quite large and this kind of format information would handy
for other module. So let us start to gather this information about the format in
a more appropriate place.
We update various reference to this information to use the new "source of truth"
in the process.
Differential Revision: https://phab.mercurial-scm.org/D10305
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Mon, 05 Apr 2021 12:21:12 +0200 |
parents | ba8e508a8e69 |
children | 64cd1496bb70 |
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# coding: utf8 # ext-sidedata-5.py - small extension to test (differently still) the sidedata # logic # # Simulates a server for a simple sidedata exchange. # # Copyright 2021 Raphaël Gomès <rgomes@octobus.net> # # 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 hashlib import struct from mercurial import ( extensions, revlog, ) from mercurial.revlogutils import sidedata as sidedatamod def compute_sidedata_1(repo, revlog, rev, sidedata, text=None): sidedata = sidedata.copy() if text is None: text = revlog.revision(rev) sidedata[sidedatamod.SD_TEST1] = struct.pack('>I', len(text)) return sidedata def compute_sidedata_2(repo, revlog, rev, sidedata, text=None): sidedata = sidedata.copy() if text is None: text = revlog.revision(rev) sha256 = hashlib.sha256(text).digest() sidedata[sidedatamod.SD_TEST2] = struct.pack('>32s', sha256) return sidedata def reposetup(ui, repo): # Sidedata keys happen to be the same as the categories, easier for testing. for kind in (b'changelog', b'manifest', b'filelog'): repo.register_sidedata_computer( kind, sidedatamod.SD_TEST1, (sidedatamod.SD_TEST1,), compute_sidedata_1, ) repo.register_sidedata_computer( kind, sidedatamod.SD_TEST2, (sidedatamod.SD_TEST2,), compute_sidedata_2, ) # We don't register sidedata computers because we don't care within these # tests repo.register_wanted_sidedata(sidedatamod.SD_TEST1) repo.register_wanted_sidedata(sidedatamod.SD_TEST2) def wrapaddrevision( orig, self, text, transaction, link, p1, p2, *args, **kwargs ): if kwargs.get('sidedata') is None: kwargs['sidedata'] = {} sd = kwargs['sidedata'] ## let's store some arbitrary data just for testing # text length sd[sidedatamod.SD_TEST1] = struct.pack('>I', len(text)) # and sha2 hashes sha256 = hashlib.sha256(text).digest() sd[sidedatamod.SD_TEST2] = struct.pack('>32s', sha256) return orig(self, text, transaction, link, p1, p2, *args, **kwargs) def extsetup(ui): extensions.wrapfunction(revlog.revlog, 'addrevision', wrapaddrevision)