Mercurial > hg
view tests/flagprocessorext.py @ 45072:a56ba57c837d
scmutil: allowing different files to be prefetched per revision
The old API takes a list of revision separate from the file matcher, and thus
provides no way to fetch different sets of files from each revision. In
preparation for adding one such usage, I'm changing the API to take a list of
(revision, file matcher) tuples instead.
Differential Revision: https://phab.mercurial-scm.org/D8721
author | Rodrigo Damazio Bovendorp <rdamazio@google.com> |
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date | Thu, 09 Jul 2020 18:48:55 -0700 |
parents | 2372284d9457 |
children | 74271829ddc0 |
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# coding=UTF-8 from __future__ import absolute_import import base64 import zlib from mercurial import ( changegroup, exchange, extensions, revlog, util, ) from mercurial.revlogutils import flagutil # 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, sidedata): return (text, True) def noopdonothingread(self, text): return (text, True, {}) def b64encode(self, text, sidedata): return (base64.b64encode(text), False) def b64decode(self, text): return (base64.b64decode(text), True, {}) def gzipcompress(self, text, sidedata): 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) revlog.REVIDX_FLAGS_ORDER.extend(flags) # Teach exchange to use changegroup 3 for k in exchange._bundlespeccontentopts.keys(): exchange._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) )