Mercurial > hg
view hgext/narrow/narrowwirepeer.py @ 49680:40e24d82b513
delta-find: make sure we only use newer full snapshot as candidate
The current code does not needs to protect against this, as there are no older
snapshot in the current cache. However as we are getting ready to reuse this
cache from one revision to another, we need the code to protect itself about
what's coming.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Sun, 06 Nov 2022 17:55:55 -0500 |
parents | cd51d4957b28 |
children | 584fc92dd8d7 |
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# narrowwirepeer.py - passes narrow spec with unbundle command # # Copyright 2017 Google, Inc. # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. from mercurial import ( bundle2, error, exchange, extensions, hg, narrowspec, wireprototypes, wireprotov1peer, wireprotov1server, ) from . import narrowbundle2 def uisetup(): wireprotov1peer.wirepeer.narrow_widen = peernarrowwiden def reposetup(repo): def wirereposetup(ui, peer): def wrapped(orig, cmd, *args, **kwargs): if cmd == b'unbundle': # TODO: don't blindly add include/exclude wireproto # arguments to unbundle. include, exclude = repo.narrowpats kwargs["includepats"] = b','.join(include) kwargs["excludepats"] = b','.join(exclude) return orig(cmd, *args, **kwargs) extensions.wrapfunction(peer, b'_calltwowaystream', wrapped) hg.wirepeersetupfuncs.append(wirereposetup) @wireprotov1server.wireprotocommand( b'narrow_widen', b'oldincludes oldexcludes' b' newincludes newexcludes' b' commonheads cgversion' b' known ellipses', permission=b'pull', ) def narrow_widen( repo, proto, oldincludes, oldexcludes, newincludes, newexcludes, commonheads, cgversion, known, ellipses, ): """wireprotocol command to send data when a narrow clone is widen. We will be sending a changegroup here. The current set of arguments which are required: oldincludes: the old includes of the narrow copy oldexcludes: the old excludes of the narrow copy newincludes: the new includes of the narrow copy newexcludes: the new excludes of the narrow copy commonheads: list of heads which are common between the server and client cgversion(maybe): the changegroup version to produce known: list of nodes which are known on the client (used in ellipses cases) ellipses: whether to send ellipses data or not """ preferuncompressed = False try: def splitpaths(data): # work around ''.split(',') => [''] return data.split(b',') if data else [] oldincludes = splitpaths(oldincludes) newincludes = splitpaths(newincludes) oldexcludes = splitpaths(oldexcludes) newexcludes = splitpaths(newexcludes) # enforce narrow acl if set if repo.ui.has_section(exchange._NARROWACL_SECTION): exchange.applynarrowacl(repo, {'includepats': newincludes}) # validate the patterns narrowspec.validatepatterns(set(oldincludes)) narrowspec.validatepatterns(set(newincludes)) narrowspec.validatepatterns(set(oldexcludes)) narrowspec.validatepatterns(set(newexcludes)) common = wireprototypes.decodelist(commonheads) known = wireprototypes.decodelist(known) if ellipses == b'0': ellipses = False else: ellipses = bool(ellipses) cgversion = cgversion bundler = bundle2.bundle20(repo.ui) newmatch = narrowspec.match( repo.root, include=newincludes, exclude=newexcludes ) oldmatch = narrowspec.match( repo.root, include=oldincludes, exclude=oldexcludes ) if not ellipses: bundle2.widen_bundle( bundler, repo, oldmatch, newmatch, common, known, cgversion, ellipses, ) else: narrowbundle2.generate_ellipses_bundle2_for_widening( bundler, repo, oldmatch, newmatch, cgversion, common, known, ) except error.Abort as exc: bundler = bundle2.bundle20(repo.ui) manargs = [(b'message', exc.message)] advargs = [] if exc.hint is not None: advargs.append((b'hint', exc.hint)) bundler.addpart(bundle2.bundlepart(b'error:abort', manargs, advargs)) preferuncompressed = True chunks = bundler.getchunks() return wireprototypes.streamres( gen=chunks, prefer_uncompressed=preferuncompressed ) def peernarrowwiden(remote, **kwargs): for ch in ('commonheads', 'known'): kwargs[ch] = wireprototypes.encodelist(kwargs[ch]) for ch in ('oldincludes', 'newincludes', 'oldexcludes', 'newexcludes'): kwargs[ch] = b','.join(kwargs[ch]) kwargs['ellipses'] = b'%i' % bool(kwargs['ellipses']) f = remote._callcompressable(b'narrow_widen', **kwargs) return bundle2.getunbundler(remote.ui, f)