Mercurial > hg
view tests/test-wireproto.py @ 40391:abbd077965c0
wireprotov2: support exposing linknode of file revisions
When supporting shallow file storage, clients may fetch file revisions
by changeset. But they may not readily know which changeset introduced a
specific file revision. The "linknode" is used to record which changeset
introduces which file revision.
This commit teaches the "filedata" and "filesdata" wire protocol commands
to expose the linknode for file revisions. The implementation is likely
wrong when hidden changesets are in play, since the linknode may refer to
a hidden changeset. We can deal with this problem later.
Differential Revision: https://phab.mercurial-scm.org/D5167
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Fri, 19 Oct 2018 15:38:25 +0200 |
parents | 32bc3815efae |
children | d6569f1e9b37 |
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from __future__ import absolute_import, print_function import sys from mercurial import ( error, pycompat, ui as uimod, util, wireprototypes, wireprotov1peer, wireprotov1server, ) from mercurial.utils import ( stringutil, ) stringio = util.stringio class proto(object): def __init__(self, args): self.args = args self.name = 'dummyproto' def getargs(self, spec): args = self.args args.setdefault(b'*', {}) names = spec.split() return [args[n] for n in names] def checkperm(self, perm): pass wireprototypes.TRANSPORTS['dummyproto'] = { 'transport': 'dummy', 'version': 1, } class clientpeer(wireprotov1peer.wirepeer): def __init__(self, serverrepo, ui): self.serverrepo = serverrepo self.ui = ui def url(self): return b'test' def local(self): return None def peer(self): return self def canpush(self): return True def close(self): pass def capabilities(self): return [b'batch'] def _call(self, cmd, **args): args = pycompat.byteskwargs(args) res = wireprotov1server.dispatch(self.serverrepo, proto(args), cmd) if isinstance(res, wireprototypes.bytesresponse): return res.data elif isinstance(res, bytes): return res else: raise error.Abort('dummy client does not support response type') def _callstream(self, cmd, **args): return stringio(self._call(cmd, **args)) @wireprotov1peer.batchable def greet(self, name): f = wireprotov1peer.future() yield {b'name': mangle(name)}, f yield unmangle(f.value) class serverrepo(object): def greet(self, name): return b"Hello, " + name def filtered(self, name): return self def mangle(s): return b''.join(pycompat.bytechr(ord(c) + 1) for c in pycompat.bytestr(s)) def unmangle(s): return b''.join(pycompat.bytechr(ord(c) - 1) for c in pycompat.bytestr(s)) def greet(repo, proto, name): return mangle(repo.greet(unmangle(name))) wireprotov1server.commands[b'greet'] = (greet, b'name') srv = serverrepo() clt = clientpeer(srv, uimod.ui()) def printb(data, end=b'\n'): out = getattr(sys.stdout, 'buffer', sys.stdout) out.write(data + end) out.flush() printb(clt.greet(b"Foobar")) with clt.commandexecutor() as e: fgreet1 = e.callcommand(b'greet', {b'name': b'Fo, =;:<o'}) fgreet2 = e.callcommand(b'greet', {b'name': b'Bar'}) printb(stringutil.pprint([f.result() for f in (fgreet1, fgreet2)], bprefix=True))