Mercurial > hg
view tests/flagprocessorext.py @ 48598:a6f16ec07ed7
stream-clone: add a explicit test for format change during stream clone
They are different kind of requirements, the one which impact the data storage
and are relevant to the files being streamed and the one which does not. For
example some requirements are only relevant to the working copy, like sparse, or
dirstate-v2.
Since they are irrelevant to the content being streamed, they do not prevent the
receiving side to use streaming clone and mercurial skip adverting them over
the wire and, ideally, within the bundle.
In addition, this let the client decide to use whichever format it desire for
the part that does not affect the store itself. So the configuration related to
these format are used as normal when doing a streaming clone.
In practice, the feature was not really tested and is badly broken with bundle-2,
since the requirements are not filtered out from the stream bundle.
So we start with adding simple tests as a good base before the fix and adjust
the feature.
Differential Revision: https://phab.mercurial-scm.org/D12029
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Mon, 17 Jan 2022 18:51:47 +0100 |
parents | ac60a1366a49 |
children | 6000f5b25c9b |
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# coding=UTF-8 from __future__ import absolute_import import base64 import zlib from mercurial import ( bundlecaches, changegroup, extensions, revlog, util, ) from mercurial.revlogutils import flagutil from mercurial.interfaces import repository # Test only: These flags are defined here only in the context of testing the # behavior of the flag processor. The canonical way to add flags is to get in # touch with the community and make them known in revlog. REVIDX_NOOP = 1 << 3 REVIDX_BASE64 = 1 << 2 REVIDX_GZIP = 1 << 1 REVIDX_FAIL = 1 def validatehash(self, text): return True def bypass(self, text): return False def noopdonothing(self, text): return (text, True) def noopdonothingread(self, text): return (text, True) def b64encode(self, text): return (base64.b64encode(text), False) def b64decode(self, text): return (base64.b64decode(text), True) def gzipcompress(self, text): return (zlib.compress(text), False) def gzipdecompress(self, text): return (zlib.decompress(text), True) def supportedoutgoingversions(orig, repo): versions = orig(repo) versions.discard(b'01') versions.discard(b'02') versions.add(b'03') return versions def allsupportedversions(orig, ui): versions = orig(ui) versions.add(b'03') return versions def makewrappedfile(obj): class wrappedfile(obj.__class__): def addrevision( self, text, transaction, link, p1, p2, cachedelta=None, node=None, flags=flagutil.REVIDX_DEFAULT_FLAGS, ): if b'[NOOP]' in text: flags |= REVIDX_NOOP if b'[BASE64]' in text: flags |= REVIDX_BASE64 if b'[GZIP]' in text: flags |= REVIDX_GZIP # This addrevision wrapper is meant to add a flag we will not have # transforms registered for, ensuring we handle this error case. if b'[FAIL]' in text: flags |= REVIDX_FAIL return super(wrappedfile, self).addrevision( text, transaction, link, p1, p2, cachedelta=cachedelta, node=node, flags=flags, ) obj.__class__ = wrappedfile def reposetup(ui, repo): class wrappingflagprocessorrepo(repo.__class__): def file(self, f): orig = super(wrappingflagprocessorrepo, self).file(f) makewrappedfile(orig) return orig repo.__class__ = wrappingflagprocessorrepo def extsetup(ui): # Enable changegroup3 for flags to be sent over the wire wrapfunction = extensions.wrapfunction wrapfunction( changegroup, 'supportedoutgoingversions', supportedoutgoingversions ) wrapfunction(changegroup, 'allsupportedversions', allsupportedversions) # Teach revlog about our test flags flags = [REVIDX_NOOP, REVIDX_BASE64, REVIDX_GZIP, REVIDX_FAIL] flagutil.REVIDX_KNOWN_FLAGS |= util.bitsfrom(flags) repository.REVISION_FLAGS_KNOWN |= util.bitsfrom(flags) revlog.REVIDX_FLAGS_ORDER.extend(flags) # Teach exchange to use changegroup 3 for k in bundlecaches._bundlespeccontentopts.keys(): bundlecaches._bundlespeccontentopts[k][b"cg.version"] = b"03" # Register flag processors for each extension flagutil.addflagprocessor( REVIDX_NOOP, ( noopdonothingread, noopdonothing, validatehash, ), ) flagutil.addflagprocessor( REVIDX_BASE64, ( b64decode, b64encode, bypass, ), ) flagutil.addflagprocessor( REVIDX_GZIP, (gzipdecompress, gzipcompress, bypass) )