Mercurial > hg
view tests/testlib/ext-sidedata.py @ 45659:a475db79d84d
changing-files: add a "salvaged" set to track file that were not removed
We need this set for the copy tracing algorithm. See documentation for details
about this set.
Differential Revision: https://phab.mercurial-scm.org/D9118
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Mon, 14 Sep 2020 23:46:21 +0200 |
parents | d7dcc75a3eae |
children | edf4fa06df94 |
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# ext-sidedata.py - small extension to test the sidedata logic # # Copyright 2019 Pierre-Yves David <pierre-yves.david@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, node, requirements, revlog, upgrade, ) from mercurial.revlogutils import sidedata 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[sidedata.SD_TEST1] = struct.pack('>I', len(text)) # and sha2 hashes sha256 = hashlib.sha256(text).digest() sd[sidedata.SD_TEST2] = struct.pack('>32s', sha256) return orig(self, text, transaction, link, p1, p2, *args, **kwargs) def wraprevision(orig, self, nodeorrev, *args, **kwargs): text = orig(self, nodeorrev, *args, **kwargs) if getattr(self, 'sidedatanocheck', False): return text if nodeorrev != node.nullrev and nodeorrev != node.nullid: sd = self.sidedata(nodeorrev) if len(text) != struct.unpack('>I', sd[sidedata.SD_TEST1])[0]: raise RuntimeError('text size mismatch') expected = sd[sidedata.SD_TEST2] got = hashlib.sha256(text).digest() if got != expected: raise RuntimeError('sha256 mismatch') return text def wrapgetsidedatacompanion(orig, srcrepo, dstrepo): sidedatacompanion = orig(srcrepo, dstrepo) addedreqs = dstrepo.requirements - srcrepo.requirements if requirements.SIDEDATA_REQUIREMENT in addedreqs: assert sidedatacompanion is None # deal with composition later def sidedatacompanion(revlog, rev): update = {} revlog.sidedatanocheck = True try: text = revlog.revision(rev) finally: del revlog.sidedatanocheck ## let's store some arbitrary data just for testing # text length update[sidedata.SD_TEST1] = struct.pack('>I', len(text)) # and sha2 hashes sha256 = hashlib.sha256(text).digest() update[sidedata.SD_TEST2] = struct.pack('>32s', sha256) return False, (), update return sidedatacompanion def extsetup(ui): extensions.wrapfunction(revlog.revlog, 'addrevision', wrapaddrevision) extensions.wrapfunction(revlog.revlog, 'revision', wraprevision) extensions.wrapfunction( upgrade, 'getsidedatacompanion', wrapgetsidedatacompanion )