branchcache: skip entries that are topological heads in the on disk file
In the majority of cases, topological heads are also branch heads. We have
efficient way to get the topological heads and efficient way to retrieve
their branch information. So there is little value in putting them in the branch
cache file explicitly. On the contrary, writing them explicitly tend to create
very large cache file that are inefficient to read and update.
So the branch cache v3 format is no longer including them. This changeset focus
on the format aspect and have no focus on the performance aspect. We will cover
that later.
# Test that certain objects conform to well-defined interfaces.
from mercurial import encoding
encoding.environ[b'HGREALINTERFACES'] = b'1'
import os
import subprocess
import sys
# Only run if tests are run in a repo
if subprocess.call(
[sys.executable, '%s/hghave' % os.environ['TESTDIR'], 'test-repo']
):
sys.exit(80)
from mercurial.interfaces import (
dirstate as intdirstate,
repository,
)
from mercurial.thirdparty.zope import interface as zi
from mercurial.thirdparty.zope.interface import verify as ziverify
from mercurial import (
bundlerepo,
dirstate,
filelog,
httppeer,
localrepo,
manifest,
pycompat,
revlog,
sshpeer,
statichttprepo,
ui as uimod,
unionrepo,
vfs as vfsmod,
wireprotoserver,
wireprototypes,
wireprotov1peer,
)
testdir = os.path.dirname(__file__)
rootdir = pycompat.fsencode(os.path.normpath(os.path.join(testdir, '..')))
sys.path[0:0] = [testdir]
import simplestorerepo
del sys.path[0]
def checkzobject(o, allowextra=False):
"""Verify an object with a zope interface."""
ifaces = zi.providedBy(o)
if not ifaces:
print('%r does not provide any zope interfaces' % o)
return
# Run zope.interface's built-in verification routine. This verifies that
# everything that is supposed to be present is present.
for iface in ifaces:
ziverify.verifyObject(iface, o)
if allowextra:
return
# Now verify that the object provides no extra public attributes that
# aren't declared as part of interfaces.
allowed = set()
for iface in ifaces:
allowed |= set(iface.names(all=True))
public = {a for a in dir(o) if not a.startswith('_')}
for attr in sorted(public - allowed):
print(
'public attribute not declared in interfaces: %s.%s'
% (o.__class__.__name__, attr)
)
# Facilitates testing localpeer.
class dummyrepo:
def __init__(self):
self.ui = uimod.ui()
self._wanted_sidedata = set()
def filtered(self, name):
pass
def _restrictcapabilities(self, caps):
pass
class dummyopener:
handlers = []
# Facilitates testing sshpeer without requiring a server.
class badpeer(httppeer.httppeer):
def __init__(self):
super(badpeer, self).__init__(
None, None, None, dummyopener(), None, None
)
self.badattribute = True
def badmethod(self):
pass
class dummypipe:
def close(self):
pass
@property
def closed(self):
pass
def main():
ui = uimod.ui()
# Needed so we can open a local repo with obsstore without a warning.
ui.setconfig(b'experimental', b'evolution.createmarkers', True)
checkzobject(badpeer())
ziverify.verifyClass(repository.ipeerbase, httppeer.httppeer)
checkzobject(httppeer.httppeer(None, None, None, dummyopener(), None, None))
ziverify.verifyClass(repository.ipeerbase, localrepo.localpeer)
checkzobject(localrepo.localpeer(dummyrepo()))
ziverify.verifyClass(
repository.ipeercommandexecutor, localrepo.localcommandexecutor
)
checkzobject(localrepo.localcommandexecutor(None))
ziverify.verifyClass(
repository.ipeercommandexecutor, wireprotov1peer.peerexecutor
)
checkzobject(wireprotov1peer.peerexecutor(None))
ziverify.verifyClass(repository.ipeerbase, sshpeer.sshv1peer)
checkzobject(
sshpeer.sshv1peer(
ui,
b'ssh://localhost/foo',
b'',
dummypipe(),
dummypipe(),
None,
None,
)
)
ziverify.verifyClass(repository.ipeerbase, bundlerepo.bundlepeer)
checkzobject(bundlerepo.bundlepeer(dummyrepo()))
ziverify.verifyClass(repository.ipeerbase, statichttprepo.statichttppeer)
checkzobject(statichttprepo.statichttppeer(dummyrepo()))
ziverify.verifyClass(repository.ipeerbase, unionrepo.unionpeer)
checkzobject(unionrepo.unionpeer(dummyrepo()))
ziverify.verifyClass(
repository.ilocalrepositorymain, localrepo.localrepository
)
ziverify.verifyClass(
repository.ilocalrepositoryfilestorage, localrepo.revlogfilestorage
)
repo = localrepo.makelocalrepository(ui, rootdir)
checkzobject(repo)
ziverify.verifyClass(
wireprototypes.baseprotocolhandler, wireprotoserver.sshv1protocolhandler
)
ziverify.verifyClass(
wireprototypes.baseprotocolhandler,
wireprotoserver.httpv1protocolhandler,
)
sshv1 = wireprotoserver.sshv1protocolhandler(None, None, None)
checkzobject(sshv1)
httpv1 = wireprotoserver.httpv1protocolhandler(None, None, None)
checkzobject(httpv1)
ziverify.verifyClass(repository.ifilestorage, filelog.filelog)
ziverify.verifyClass(repository.imanifestdict, manifest.manifestdict)
ziverify.verifyClass(repository.imanifestdict, manifest.treemanifest)
ziverify.verifyClass(
repository.imanifestrevisionstored, manifest.manifestctx
)
ziverify.verifyClass(
repository.imanifestrevisionwritable, manifest.memmanifestctx
)
ziverify.verifyClass(
repository.imanifestrevisionstored, manifest.treemanifestctx
)
ziverify.verifyClass(
repository.imanifestrevisionwritable, manifest.memtreemanifestctx
)
ziverify.verifyClass(repository.imanifestlog, manifest.manifestlog)
ziverify.verifyClass(repository.imanifeststorage, manifest.manifestrevlog)
ziverify.verifyClass(
repository.irevisiondelta, simplestorerepo.simplestorerevisiondelta
)
ziverify.verifyClass(repository.ifilestorage, simplestorerepo.filestorage)
ziverify.verifyClass(
repository.iverifyproblem, simplestorerepo.simplefilestoreproblem
)
ziverify.verifyClass(intdirstate.idirstate, dirstate.dirstate)
vfs = vfsmod.vfs(b'.')
fl = filelog.filelog(vfs, b'dummy.i')
checkzobject(fl, allowextra=True)
# Conforms to imanifestlog.
ml = manifest.manifestlog(
vfs,
repo,
manifest.manifestrevlog(repo.nodeconstants, repo.svfs),
repo.narrowmatch(),
)
checkzobject(ml)
checkzobject(repo.manifestlog)
# Conforms to imanifestrevision.
mctx = ml[repo[0].manifestnode()]
checkzobject(mctx)
# Conforms to imanifestrevisionwritable.
checkzobject(mctx.copy())
# Conforms to imanifestdict.
checkzobject(mctx.read())
mrl = manifest.manifestrevlog(repo.nodeconstants, vfs)
checkzobject(mrl)
ziverify.verifyClass(repository.irevisiondelta, revlog.revlogrevisiondelta)
rd = revlog.revlogrevisiondelta(
node=b'',
p1node=b'',
p2node=b'',
basenode=b'',
linknode=b'',
flags=b'',
baserevisionsize=None,
revision=b'',
sidedata=b'',
delta=None,
protocol_flags=b'',
)
checkzobject(rd)
ziverify.verifyClass(repository.iverifyproblem, revlog.revlogproblem)
checkzobject(revlog.revlogproblem())
main()