Mercurial > hg
view tests/testlib/ext-sidedata-3.py @ 50706:0452af304808
stream-clone: add a v3 version of the protocol
This new version is less rigid regarding the extract number of files and number
of bytes to be actually transfered, it also lays the groundwork for other
improvements.
The format stays experimental, but this is an interesting base to build upon.
author | Arseniy Alekseyev <aalekseyev@janestreet.com> |
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date | Thu, 01 Jun 2023 17:39:22 +0100 |
parents | 6000f5b25c9b |
children |
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# coding: utf8 # ext-sidedata-3.py - small extension to test (differently still) the sidedata # logic # # Simulates a client for a complex 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. import hashlib import struct from mercurial import ( extensions, revlog, ) from mercurial.revlogutils import sidedata as sidedatamod from mercurial.revlogutils import constants NO_FLAGS = (0, 0) 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, NO_FLAGS 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, NO_FLAGS def compute_sidedata_3(repo, revlog, rev, sidedata, text=None): sidedata = sidedata.copy() if text is None: text = revlog.revision(rev) sha384 = hashlib.sha384(text).digest() sidedata[sidedatamod.SD_TEST3] = struct.pack('>48s', sha384) return sidedata, NO_FLAGS def wrapaddrevision( orig, self, text, transaction, link, p1, p2, *args, **kwargs ): if kwargs.get('sidedata') is None: kwargs['sidedata'] = {} sd = kwargs['sidedata'] sd, flags = compute_sidedata_1(None, self, None, sd, text=text) kwargs['sidedata'] = compute_sidedata_2(None, self, None, sd, text=text)[0] return orig(self, text, transaction, link, p1, p2, *args, **kwargs) def extsetup(ui): extensions.wrapfunction(revlog.revlog, 'addrevision', wrapaddrevision) def reposetup(ui, repo): # Sidedata keys happen to be the same as the categories, easier for testing. for kind in constants.ALL_KINDS: repo.register_sidedata_computer( kind, sidedatamod.SD_TEST1, (sidedatamod.SD_TEST1,), compute_sidedata_1, 0, ) repo.register_sidedata_computer( kind, sidedatamod.SD_TEST2, (sidedatamod.SD_TEST2,), compute_sidedata_2, 0, ) repo.register_sidedata_computer( kind, sidedatamod.SD_TEST3, (sidedatamod.SD_TEST3,), compute_sidedata_3, 0, ) repo.register_wanted_sidedata(sidedatamod.SD_TEST1) repo.register_wanted_sidedata(sidedatamod.SD_TEST2)