Mercurial > hg
view tests/testlib/ext-sidedata.py @ 44588:2a98b0cd4995
setup: build C extensions with -Werror=declaration-after-statement
MSVC 2008 still needs declarations at the top of the scope. I added it to the
3rd party code too in case somebody vendors a new version with a problem-
they'll get an early warning. Clang seems to ignore this (at least on 10.14
with Xcode 10), and gcc 7.4 will error out as desired on Ubuntu 18.04. Thanks
to Yuya for remembering the name of the option.
Differential Revision: https://phab.mercurial-scm.org/D8318
author | Matt Harbison <matt_harbison@yahoo.com> |
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date | Fri, 20 Mar 2020 23:30:23 -0400 |
parents | 75ad8af9c95e |
children | d7dcc75a3eae |
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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, localrepo, node, 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 localrepo.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 )