facebook/sapling
1
1
Fork 0
mirror of https://github.com/facebook/sapling.git synced 2024-10-10 16:57:49 +03:00
Code Issues Projects Releases Wiki Activity
33a634167e
sapling/eden/scm/edenscm/mercurial/localrepo.py
Durham Goode 6da00020eb configs: move all dynamic and repo config loading out of Python 
Summary:
The last few diffs prepared Rust for loading dynamic and repo configs.
This diff finally changes Python so that we're no longer doing any of this work
in Python.

Reviewed By: quark-zju

Differential Revision: D22712625

fbshipit-source-id: 0b71e81d79d10ea3ce7a1b31f315ada5728af9a9
2020-08-16 16:56:00 -07:00

2986 lines
110 KiB
Python
Raw Blame History

# Portions Copyright (c) Facebook, Inc. and its affiliates.
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2.
# localrepo.py - read/write repository class for mercurial
#
# Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
from __future__ import absolute_import
import errno
import hashlib
import os
import random
import time
import weakref
from contextlib import contextmanager
import bindings
from edenscm.hgext.extlib.phabricator import diffprops
from . import (
bookmarks,
branchmap,
bundle2,
changegroup,
changelog,
changelog2,
color,
connectionpool,
context,
dirstate,
dirstateguard,
discovery,
edenfs,
encoding,
error as errormod,
exchange,
extensions,
filelog,
hook,
lock as lockmod,
manifest,
match as matchmod,
merge as mergemod,
mergeutil,
mutation,
namespaces,
obsolete,
pathutil,
peer,
phases,
progress,
pushkey,
pycompat,
repository,
revlog,
revset,
revsetlang,
scmutil,
smallcommitmetadata,
store,
transaction,
treestate,
txnutil,
uiconfig,
util,
vfs as vfsmod,
visibility,
)
from .i18n import _
from .node import bin, hex, nullhex, nullid, short
from .pycompat import range
release = lockmod.release
urlerr = util.urlerr
urlreq = util.urlreq
# set of (path, vfs-location) tuples. vfs-location is:
# - 'plain for vfs relative paths
# - '' for svfs relative paths
_cachedfiles = set()
class _basefilecache(scmutil.filecache):
"""filecache usage on repo"""
def __get__(self, repo, type=None):
if repo is None:
return self
return super(_basefilecache, self).__get__(repo, type)
def __set__(self, repo, value):
return super(_basefilecache, self).__set__(repo, value)
def __delete__(self, repo):
return super(_basefilecache, self).__delete__(repo)
class repofilecache(_basefilecache):
"""filecache for files in .hg but outside of .hg/store"""
def __init__(self, localpaths=(), sharedpaths=()):
paths = [(path, self.localjoin) for path in localpaths] + [
(path, self.sharedjoin) for path in sharedpaths
]
super(repofilecache, self).__init__(*paths)
for path in localpaths:
_cachedfiles.add((path, "local"))
for path in sharedpaths:
_cachedfiles.add((path, "shared"))
def localjoin(self, obj, fname):
return obj.localvfs.join(fname)
def sharedjoin(self, obj, fname):
return obj.sharedvfs.join(fname)
class storecache(_basefilecache):
"""filecache for files in the store"""
def __init__(self, *paths):
super(storecache, self).__init__(*paths)
for path in paths:
_cachedfiles.add((path, ""))
def join(self, obj, fname):
return obj.sjoin(fname)
def isfilecached(repo, name):
"""check if a repo has already cached "name" filecache-ed property
This returns (cachedobj-or-None, iscached) tuple.
"""
cacheentry = repo._filecache.get(name, None)
if not cacheentry:
return None, False
return cacheentry.obj, True
def hascache(repo, name):
"""check if a repo has an value for <name>"""
return name in vars(repo)
moderncaps = {"lookup", "branchmap", "pushkey", "known", "getbundle", "unbundle"}
legacycaps = moderncaps.union({"changegroupsubset"})
class localpeer(repository.peer):
"""peer for a local repo; reflects only the most recent API"""
def __init__(self, repo, caps=None):
super(localpeer, self).__init__()
if caps is None:
caps = moderncaps.copy()
self._repo = repo
self._ui = repo.ui
self._caps = repo._restrictcapabilities(caps)
# Begin of _basepeer interface.
@util.propertycache
def ui(self):
return self._ui
def url(self):
return self._repo.url()
def local(self):
return self._repo
def peer(self):
return self
def canpush(self):
return True
def close(self):
self._repo.close()
# End of _basepeer interface.
# Begin of _basewirecommands interface.
def branchmap(self):
return self._repo.branchmap()
def capabilities(self):
return self._caps
def debugwireargs(self, one, two, three=None, four=None, five=None):
"""Used to test argument passing over the wire"""
return "%s %s %s %s %s" % (one, two, three, four, five)
def getbundle(self, source, heads=None, common=None, bundlecaps=None, **kwargs):
chunks = exchange.getbundlechunks(
self._repo,
source,
heads=heads,
common=common,
bundlecaps=bundlecaps,
**kwargs
)
cb = util.chunkbuffer(chunks)
if exchange.bundle2requested(bundlecaps):
# When requesting a bundle2, getbundle returns a stream to make the
# wire level function happier. We need to build a proper object
# from it in local peer.
return bundle2.getunbundler(self.ui, cb)
else:
return changegroup.getunbundler("01", cb, None)
def heads(self, *args, **kwargs):
return list(self._repo.heads(*args, **kwargs))
def known(self, nodes):
return self._repo.known(nodes)
def listkeys(self, namespace, patterns=None):
return self._repo.listkeys(namespace, patterns)
def listkeyspatterns(self, namespace, patterns=None):
return self._repo.listkeys(namespace, patterns)
def lookup(self, key):
return self._repo.lookup(key)
def pushkey(self, namespace, key, old, new):
return self._repo.pushkey(namespace, key, old, new)
def stream_out(self, shallow=False):
raise errormod.Abort(_("cannot perform stream clone against local " "peer"))
def unbundle(self, cg, heads, url):
"""apply a bundle on a repo
This function handles the repo locking itself."""
try:
try:
cg = exchange.readbundle(self.ui, cg, None)
ret = exchange.unbundle(self._repo, cg, heads, "push", url)
if util.safehasattr(ret, "getchunks"):
# This is a bundle20 object, turn it into an unbundler.
# This little dance should be dropped eventually when the
# API is finally improved.
stream = util.chunkbuffer(ret.getchunks())
ret = bundle2.getunbundler(self.ui, stream)
return ret
except Exception as exc:
# If the exception contains output salvaged from a bundle2
# reply, we need to make sure it is printed before continuing
# to fail. So we build a bundle2 with such output and consume
# it directly.
#
# This is not very elegant but allows a "simple" solution for
# issue4594
output = getattr(exc, "_bundle2salvagedoutput", ())
if output:
bundler = bundle2.bundle20(self._repo.ui)
for out in output:
bundler.addpart(out)
stream = util.chunkbuffer(bundler.getchunks())
b = bundle2.getunbundler(self.ui, stream)
bundle2.processbundle(self._repo, b)
raise
except errormod.PushRaced as exc:
raise errormod.ResponseError(_("push failed:"), str(exc))
# End of _basewirecommands interface.
# Begin of peer interface.
def iterbatch(self):
return peer.localiterbatcher(self)
# End of peer interface.
class locallegacypeer(repository.legacypeer, localpeer):
"""peer extension which implements legacy methods too; used for tests with
restricted capabilities"""
def __init__(self, repo):
super(locallegacypeer, self).__init__(repo, caps=legacycaps)
# Begin of baselegacywirecommands interface.
def between(self, pairs):
return self._repo.between(pairs)
def branches(self, nodes):
return self._repo.branches(nodes)
def changegroup(self, basenodes, source):
outgoing = discovery.outgoing(
self._repo, missingroots=basenodes, missingheads=self._repo.heads()
)
return changegroup.makechangegroup(self._repo, outgoing, "01", source)
def changegroupsubset(self, bases, heads, source):
outgoing = discovery.outgoing(
self._repo, missingroots=bases, missingheads=heads
)
return changegroup.makechangegroup(self._repo, outgoing, "01", source)
# End of baselegacywirecommands interface.
class localrepository(object):
"""local repository object
``unsafe.wvfsauditorcache`` config option allows the user to enable
the auditor caching for the repo's working copy. This significantly
reduces the amount of stat-like system calls and thus saves time.
This option should be safe if symlinks are not used in the repo"""
supportedformats = {"revlogv1", "generaldelta", "treemanifest"}
_basesupported = supportedformats | {
edenfs.requirement,
"store",
"fncache",
"shared",
"relshared",
"dotencode",
"treedirstate",
"treestate",
"storerequirements",
}
_basestoresupported = {
"visibleheads",
"narrowheads",
"zstorecommitdata",
"invalidatelinkrev",
"segmentedchangelog",
}
openerreqs = {"revlogv1", "generaldelta", "treemanifest"}
# sets of (ui, featureset) functions for repo and store features.
# only functions defined in module of enabled extensions are invoked
# pyre-fixme[20]: Argument `expr` expected.
featuresetupfuncs = set()
# pyre-fixme[20]: Argument `expr` expected.
storefeaturesetupfuncs = set()
# list of prefix for file which can be written without 'wlock'
# Extensions should extend this list when needed
_wlockfreeprefix = {
# We migh consider requiring 'wlock' for the next
# two, but pretty much all the existing code assume
# wlock is not needed so we keep them excluded for
# now.
"hgrc",
"requires",
# XXX cache is a complicatged business someone
# should investigate this in depth at some point
"cache/",
# XXX shouldn't be dirstate covered by the wlock?
"dirstate",
# XXX checkoutidentifier has same rules as dirstate.
"checkoutidentifier",
# XXX bisect was still a bit too messy at the time
# this changeset was introduced. Someone should fix
# the remainig bit and drop this line
"bisect.state",
# Race condition to this file is okay.
"lastsqlsync",
}
# Set of prefixes of store files which can be written without 'lock'.
# Extensions should extend this set when necessary.
# pyre-fixme[20]: Argument `expr` expected.
_lockfreeprefix = set()
def __init__(self, baseui, path, create=False):
self.requirements = set()
self.storerequirements = set()
# wvfs: rooted at the repository root, used to access the working copy
self.wvfs = vfsmod.vfs(path, expandpath=True, realpath=True, cacheaudited=False)
# localvfs: rooted at .hg, used to access repo files outside of
# the store that are local to this working copy.
self.localvfs = None
# sharedvfs: the local vfs of the primary shared repo for shared repos.
# for non-shared repos this is the same as localvfs.
self.sharedvfs = None
# svfs: store vfs - usually rooted at .hg/store, used to access repository history
# If this is a shared repository, this vfs may point to another
# repository's .hg/store directory.
self.svfs = None
self.root = self.wvfs.base
self.path = self.wvfs.join(".hg")
self.origroot = path
# This is only used by context.workingctx.match in order to
# detect files in forbidden paths.
self.auditor = pathutil.pathauditor(self.root)
# This is only used by context.basectx.match in order to detect
# files in forbidden paths..
self.nofsauditor = pathutil.pathauditor(self.root, realfs=False, cached=True)
self.baseui = baseui
self.ui = baseui.copy()
self.ui.copy = baseui.copy # prevent copying repo configuration
self.localvfs = vfsmod.vfs(self.path, cacheaudited=True)
if self.ui.configbool("devel", "all-warnings") or self.ui.configbool(
"devel", "check-locks"
):
self.localvfs.audit = self._getvfsward(self.localvfs.audit)
# A list of callback to shape the phase if no data were found.
# Callback are in the form: func(repo, roots) --> processed root.
# This list it to be filled by extension during repo setup
self._phasedefaults = []
reponame = self.ui.config("remotefilelog", "reponame", "")
# If the repo already exists, load the existing configs
if self.localvfs.isdir():
self.ui.reloadconfigs(self.root)
uiconfig.validatedynamicconfig(self.ui)
elif create:
# If we're in the process of creating the repo, load the dynamic configs in
# memory only. They will be written to disk later once the localvfs
# is created.
uiconfig.applydynamicconfig(self.ui, reponame, self.path)
self._loadextensions()
cacheaudited = self.ui.configbool("unsafe", "wvfsauditorcache")
self.wvfs.audit._cached = cacheaudited
self.supported = self._featuresetup(self.featuresetupfuncs, self._basesupported)
self.storesupported = self._featuresetup(
self.storefeaturesetupfuncs, self._basestoresupported
)
color.setup(self.ui)
# Add compression engines.
for name in util.compengines:
engine = util.compengines[name]
if engine.revlogheader():
self.supported.add("exp-compression-%s" % name)
created = False
if not self.localvfs.isdir():
if create:
created = True
self.requirements = newreporequirements(self)
if "store" in self.requirements:
self.storerequirements = newrepostorerequirements(self)
if not self.wvfs.exists():
self.wvfs.makedirs()
self.localvfs.makedir(notindexed=True)
if "store" in self.requirements:
self.localvfs.mkdir("store")
# create an invalid changelog
self.localvfs.append(
"00changelog.i",
b"\0\0\0\1"
b" dummy changelog to prevent using the old repo layout",
)
else:
raise errormod.RepoError(_("repository %s not found") % path)
elif create:
raise errormod.RepoError(_("repository %s already exists") % path)
else:
try:
self.requirements = scmutil.readrequires(self.localvfs, self.supported)
except IOError as inst:
if inst.errno != errno.ENOENT:
raise
cachepath = self.localvfs.join("cache")
self.sharedpath = self.path
self.sharedroot = self.root
try:
sharedpath = self.localvfs.readutf8("sharedpath").rstrip("\n")
if "relshared" in self.requirements:
sharedpath = self.localvfs.join(sharedpath)
sharedvfs = vfsmod.vfs(sharedpath, realpath=True)
cachepath = sharedvfs.join("cache")
s = sharedvfs.base
if not sharedvfs.exists():
raise errormod.RepoError(
_(".hg/sharedpath points to nonexistent directory %s") % s
)
self.sharedpath = s
self.sharedroot = sharedvfs.dirname(s)
self.sharedvfs = sharedvfs
# Read the requirements of the shared repo to make sure we
# support them.
try:
scmutil.readrequires(self.sharedvfs, self.supported)
except IOError as inst:
if inst.errno != errno.ENOENT:
raise
self.sharedvfs.audit = self._getvfsward(self.sharedvfs.audit)
except IOError as inst:
if inst.errno != errno.ENOENT:
raise
self.sharedvfs = self.localvfs
# If this is a new repo, generate the dynamic configs. We must do this
# after the sharedvfs is set up so we can generate the dynamic config in
# the shared vfs.
if created:
self.ui.reloadconfigs(self.root)
self.store = store.store(
self.requirements,
self.sharedpath,
lambda base: vfsmod.vfs(base, cacheaudited=True),
self.ui.uiconfig(),
)
self.spath = self.store.path
self.svfs = self.store.vfs
self.sjoin = self.store.join
self.localvfs.createmode = self.store.createmode
self.sharedvfs.createmode = self.store.createmode
self.cachevfs = vfsmod.vfs(cachepath, cacheaudited=True)
self.cachevfs.createmode = self.store.createmode
if self.ui.configbool("devel", "all-warnings") or self.ui.configbool(
"devel", "check-locks"
):
if util.safehasattr(self.svfs, "vfs"): # this is filtervfs
self.svfs.vfs.audit = self._getsvfsward(self.svfs.vfs.audit)
else: # standard vfs
self.svfs.audit = self._getsvfsward(self.svfs.audit)
if not create and "store" in self.requirements:
try:
self.storerequirements = scmutil.readrequires(
self.svfs, self.storesupported
)
except IOError as inst:
if inst.errno != errno.ENOENT:
raise
if create:
self._writerequirements()
self._writestorerequirements()
if "hgsql" in self.requirements:
# hgsql wants raw access to revlog. Disable modern features
# unconditionally for hgsql.
self.ui.setconfig("experimental", "evolution", "obsolete", "hgsql")
self.ui.setconfig("experimental", "narrow-heads", "false", "hgsql")
self.ui.setconfig("experimental", "rust-commits", "false", "hgsql")
self.ui.setconfig("format", "use-zstore-commit-data", "false", "hgsql")
self.ui.setconfig("visibility", "enabled", "false", "hgsql")
self._dirstatevalidatewarned = False
self._branchcaches = {}
self.filterpats = {}
self._datafilters = {}
self._transref = self._lockref = self._wlockref = None
self.connectionpool = connectionpool.connectionpool(self)
self._smallcommitmetadata = None
# A cache for various files under .hg/ that tracks file changes,
# (used by the filecache decorator)
#
# Maps a property name to its util.filecacheentry
self._filecache = {}
# post-dirstate-status hooks
self._postdsstatus = []
# generic mapping between names and nodes
self.names = namespaces.namespaces(self)
self._applyopenerreqs()
self._eventreporting = True
try:
self._svfsmigration()
self._narrowheadsmigration()
self._zstorecommitdatamigration()
except errormod.LockHeld:
# Not fatal.
pass
def _svfsmigration(self):
# Migrate 'remotenames' and 'bookmarks' state from sharedvfs to
# storevfs.
# This cannot be safely done in the remotenames extension because
# changelog might access 'remotenames' and other extensions might
# use changelog before 'remotenames.reposetup'.
for name in ["remotenames", "bookmarks"]:
if self.sharedvfs.exists(name) and not os.path.exists(self.svfs.join(name)):
with self.wlock(wait=False), self.lock(wait=False):
data = self.sharedvfs.read(name)
# avoid svfs.write so it does not write into metalog.
util.writefile(self.svfs.join(name), data)
def _narrowheadsmigration(self):
"""Migrate if 'narrow-heads' config has changed."""
narrowheadsdesired = self.ui.configbool("experimental", "narrow-heads")
# 'narrow-heads' must work with visibility and remotenames
if (
not self.ui.configbool("visibility", "enabled")
or self.ui.config("extensions", "remotenames") == "!"
or "visibleheads" not in self.storerequirements
):
# Set narrow-heads to False so other code paths wouldn't try
# to use it.
if narrowheadsdesired:
self.ui.setconfig("experimental", "narrow-heads", False)
narrowheadsdesired = False
narrowheadscurrent = "narrowheads" in self.storerequirements
if narrowheadsdesired != narrowheadscurrent:
if narrowheadsdesired:
# Migrating up is easy: Just add the requirement.
with self.lock(wait=False):
self.storerequirements.add("narrowheads")
self._writestorerequirements()
else:
# Migrating down to non-narrow heads requires restoring phases.
# For this invocation, still pretend that we use narrow-heads.
# But the next invocation will use non-narrow-heads.
self.ui.setconfig("experimental", "narrow-heads", True)
with self.lock(wait=False):
# Writing to <shared repo path>/.hg/phaseroots
# Accessing the raw file directly without going through
# complicated phasescache APIs.
draftroots = self.nodes("roots(draft())")
lines = set(self.svfs.tryread("phaseroots").splitlines(True))
toadd = ""
for root in draftroots:
# 1: phases.draft
line = "1 %s\n" % hex(root)
if line not in lines:
toadd += line
with self.svfs.open("phaseroots", "ab") as f:
f.write(pycompat.encodeutf8(toadd))
self.storerequirements.remove("narrowheads")
self._writestorerequirements()
@contextmanager
def disableeventreporting(self):
self._eventreporting = False
yield
self._eventreporting = True
def _zstorecommitdatamigration(self):
"""Migrate if 'narrow-heads' config has changed."""
zstorecommitdatadesired = self.ui.configbool("format", "use-zstore-commit-data")
zstorecommitdatacurrent = "zstorecommitdata" in self.storerequirements
if zstorecommitdatadesired != zstorecommitdatacurrent:
if zstorecommitdatadesired:
# Migrating up. Read all commits in revlog and store them in
# zstore.
with self.lock(wait=False):
self._syncrevlogtozstore()
self.storerequirements.add("zstorecommitdata")
self._writestorerequirements()
else:
# Migrating down is just removing the store requirement.
with self.lock(wait=False):
self.storerequirements.remove("zstorecommitdata")
self._writestorerequirements()
def _syncrevlogtozstore(self):
"""Sync commit data from revlog to zstore"""
zstore = bindings.zstore.zstore(self.svfs.join("hgcommits/v1"))
self.changelog.zstore = zstore
if self.ui.configbool(
"format", "use-zstore-commit-data-revlog-fallback"
) or self.ui.configbool("format", "use-zstore-commit-data-server-fallback"):
revs = list(self.revs("not public()"))
else:
revs = self
with progress.bar(
self.ui, _("migrating commit data"), _("commits"), len(revs)
) as prog:
cl = self.changelog
cl.zstore = None
textwithheader = revlog.textwithheader
clrevision = cl.revision
clparents = cl.parents
clnode = cl.node
insert = zstore.insert
contains = zstore.__contains__
for rev in revs:
prog.value += 1
node = clnode(rev)
if contains(node):
continue
text = clrevision(rev)
p1, p2 = clparents(node)
newnode = insert(textwithheader(text, p1, p2))
assert node == newnode
if (rev + 1) % 1000000 == 0:
zstore.flush()
zstore.flush()
@property
def vfs(self):
self.ui.develwarn(
"use of bare vfs instead of localvfs or sharedvfs", stacklevel=1
)
return self.localvfs
def _getvfsward(self, origfunc):
"""build a ward for self.localvfs and self.sharedvfs"""
rref = weakref.ref(self)
def checkvfs(path, mode=None):
ret = origfunc(path, mode=mode)
repo = rref()
if (
repo is None
or not util.safehasattr(repo, "_wlockref")
or not util.safehasattr(repo, "_lockref")
):
return
if mode in (None, "r", "rb"):
return
if path.startswith(repo.path):
# truncate name relative to the repository (.hg)
path = path[len(repo.path) + 1 :]
if path.startswith("cache/"):
msg = 'accessing cache with vfs instead of cachevfs: "%s"'
repo.ui.develwarn(msg % path, stacklevel=2, config="cache-vfs")
if path.startswith("journal."):
# journal is covered by 'lock'
if repo._currentlock(repo._lockref) is None:
repo.ui.develwarn(
'write with no lock: "%s"' % path,
stacklevel=2,
config="check-locks",
)
elif repo._currentlock(repo._wlockref) is None:
# rest of vfs files are covered by 'wlock'
#
# exclude special files
for prefix in self._wlockfreeprefix:
if path.startswith(prefix):
return
repo.ui.develwarn(
'write with no wlock: "%s"' % path,
stacklevel=2,
config="check-locks",
)
return ret
return checkvfs
def _getsvfsward(self, origfunc):
"""build a ward for self.svfs"""
rref = weakref.ref(self)
def checksvfs(path, mode=None):
ret = origfunc(path, mode=mode)
repo = rref()
if repo is None or not util.safehasattr(repo, "_lockref"):
return
if mode in (None, "r", "rb"):
return
if path.startswith(repo.sharedpath):
# truncate name relative to the repository (.hg)
path = path[len(repo.sharedpath) + 1 :]
if repo._currentlock(repo._lockref) is None:
for prefix in self._lockfreeprefix:
if path.startswith(prefix):
return
repo.ui.develwarn('write with no lock: "%s"' % path, stacklevel=3)
return ret
return checksvfs
def _featuresetup(self, setupfuncs, basesupported):
if setupfuncs:
supported = set(basesupported) # use private copy
extmods = set(m.__name__ for n, m in extensions.extensions(self.ui))
for setupfunc in setupfuncs:
if setupfunc.__module__ in extmods:
setupfunc(self.ui, supported)
else:
supported = basesupported
return supported
def close(self):
if util.safehasattr(self, "connectionpool"):
self.connectionpool.close()
self.commitpending()
def commitpending(self):
# If we have any pending manifests, commit them to disk.
if "manifestlog" in self.__dict__:
self.manifestlog.commitpending()
if "fileslog" in self.__dict__:
self.fileslog.commitpending()
def _loadextensions(self):
extensions.loadall(self.ui)
def _restrictcapabilities(self, caps):
if self.ui.configbool("experimental", "bundle2-advertise"):
caps = set(caps)
capsblob = bundle2.encodecaps(bundle2.getrepocaps(self))
caps.add("bundle2=" + urlreq.quote(capsblob))
return caps
def _applyopenerreqs(self):
self.svfs.options = dict(
(r, 1) for r in self.requirements if r in self.openerreqs
)
# experimental config: format.chunkcachesize
chunkcachesize = self.ui.configint("format", "chunkcachesize")
if chunkcachesize is not None:
self.svfs.options["chunkcachesize"] = chunkcachesize
# experimental config: format.maxchainlen
maxchainlen = self.ui.configint("format", "maxchainlen")
if maxchainlen is not None:
self.svfs.options["maxchainlen"] = maxchainlen
# experimental config: format.manifestcachesize
manifestcachesize = self.ui.configint("format", "manifestcachesize")
if manifestcachesize is not None:
self.svfs.options["manifestcachesize"] = manifestcachesize
# experimental config: format.aggressivemergedeltas
aggressivemergedeltas = self.ui.configbool("format", "aggressivemergedeltas")
self.svfs.options["aggressivemergedeltas"] = aggressivemergedeltas
self.svfs.options["lazydeltabase"] = not scmutil.gddeltaconfig(self.ui)
mmapindexthreshold = self.ui.configbytes("experimental", "mmapindexthreshold")
if mmapindexthreshold is not None:
self.svfs.options["mmapindexthreshold"] = mmapindexthreshold
withsparseread = self.ui.configbool("experimental", "sparse-read")
srdensitythres = float(
self.ui.config("experimental", "sparse-read.density-threshold")
)
srmingapsize = self.ui.configbytes("experimental", "sparse-read.min-gap-size")
self.svfs.options["with-sparse-read"] = withsparseread
self.svfs.options["sparse-read-density-threshold"] = srdensitythres
self.svfs.options["sparse-read-min-gap-size"] = srmingapsize
for r in self.requirements:
if r.startswith("exp-compression-"):
self.svfs.options["compengine"] = r[len("exp-compression-") :]
treemanifestserver = self.ui.configbool("treemanifest", "server")
self.svfs.options["treemanifest-server"] = treemanifestserver
bypassrevlogtransaction = (
self.ui.configbool("experimental", "narrow-heads")
and self.ui.configbool("experimental", "head-based-commit-transaction")
and self.ui.configbool("experimental", "rust-commits")
)
self.svfs.options["bypass-revlog-transaction"] = bypassrevlogtransaction
def _writerequirements(self):
scmutil.writerequires(self.localvfs, self.requirements)
def _writestorerequirements(self):
if "store" in self.requirements:
util.info(
"writestorerequirements",
requirements=" ".join(sorted(self.storerequirements)),
)
scmutil.writerequires(self.svfs, self.storerequirements)
def peer(self):
return localpeer(self) # not cached to avoid reference cycle
def pull(
self, source="default", bookmarknames=(), headnodes=(), headnames=(), quiet=True
):
"""Pull specified revisions and remote bookmarks.
headnodes is a list of binary nodes to pull.
headnames is a list of text names (ex. hex prefix of a commit hash).
bookmarknames is a list of bookmark names to pull.
If a remote bookmark no longer exists on the server-side, it will be
removed.
This differs from the traditional pull command in a few ways:
- Pull nothing if both bookmarknames and headnodes are empty.
- Do not write local bookmarks.
- Only update remote bookmarks that are explicitly specified. Do not
save every name the server has.
This is also done in proper ways so the remote bookmarks updated will
match the commits pulled. The remotenames extension might fail to do so
as it issues a second wireproto command to fetch remote bookmarks,
which can be racy.
"""
# All nodes are known locally. No need to pull.
if (
not bookmarknames
and all(n in self for n in headnodes)
and all(n in self for n in headnames)
):
return
configoverride = {}
if quiet:
configoverride[("ui", "quiet")] = True
with self.conn(source) as conn, self.wlock(), self.lock(), self.transaction(
"pull"
), self.ui.configoverride(configoverride):
remote = conn.peer
remotenamechanges = {} # changes to remotenames, {name: hexnode}
heads = set()
# Resolve the bookmark names to heads.
if bookmarknames:
remotebookmarks = remote.listkeyspatterns(
"bookmarks", patterns=list(bookmarknames)
) # {name: hexnode}
for name in bookmarknames:
if name in remotebookmarks:
hexnode = remotebookmarks[name]
heads.add(bin(hexnode))
remotenamechanges[name] = hexnode # update it
else:
remotenamechanges[name] = nullhex # delete it
# Resolve headnames to heads.
if headnames:
batch = remote.iterbatch()
for name in headnames:
batch.lookup(name)
batch.submit()
heads.update(batch.results())
# Merge headnodes into heads.
for node in headnodes:
heads.add(node)
# Only perform a pull if heads are not empty.
if heads:
# Bypass the bookmarks logic as remotenames are updated here.
# Note: remotenamechanges contains bookmark deletion
# information while the exchange.pull does not know about what
# to delete. Consider also bypass phases if narrow-heads is
# enabled everywhere.
extras = {"bookmarks": False, "obsolete": False}
opargs = {"extras": extras}
heads = sorted(heads)
exchange.pull(self, remote, heads, opargs=opargs)
# Update remotenames.
if remotenamechanges:
remotename = bookmarks.remotenameforurl(
self.ui, remote.url()
) # ex. 'default' or 'remote'
bookmarks.saveremotenames(
self, {remotename: remotenamechanges}, override=False
)
def conn(self, source="default", **opts):
"""Create a connection from the connection pool"""
from . import hg # avoid cycle
source, _branches = hg.parseurl(self.ui.expandpath(source))
return self.connectionpool.get(source, opts=opts)
@repofilecache(localpaths=["shared"])
def sharedfeatures(self):
"""Returns the set of enabled 'shared' features for this repo"""
try:
return set(self.localvfs.read("shared").splitlines())
except IOError as inst:
if inst.errno != errno.ENOENT:
raise
return set()
@repofilecache(sharedpaths=["store/bookmarks"], localpaths=["bookmarks.current"])
def _bookmarks(self):
return bookmarks.bmstore(self)
@repofilecache(sharedpaths=["store/remotenames"])
def _remotenames(self):
return bookmarks.remotenames(self)
@property
def _activebookmark(self):
return self._bookmarks.active
# _phasesets depend on changelog. what we need is to call
# _phasecache.invalidate() if '00changelog.i' was changed, but it
# can't be easily expressed in filecache mechanism.
@storecache("phaseroots", "00changelog.i", "remotenames", "visibleheads")
def _phasecache(self):
return phases.phasecache(self, self._phasedefaults)
@storecache("obsstore")
def obsstore(self):
return obsolete.makestore(self.ui, self)
@storecache("00changelog.i", "visibleheads", "remotenames")
def changelog(self):
def loadchangelog(self):
# Remove left-over ".tmp" files created by Rust revlogindex,
# or by the truncation logic on 00changelog.i.
names = [
n
for n in self.svfs.listdir("")
if n.startswith(".tmp") or n.startswith("00changelog.i-")
]
now = time.time()
deleted = 0
for name in names:
# svfs might escape "." to "~2e". Bypass that using
# os.path.join.
path = os.path.join(self.svfs.join(""), name)
try:
# Avoid deleting files that are being written.
# If we do delete files written by revlogindex, it's
# okay because revlogindex won't error out.
if now - os.stat(path).st_mtime > 10:
util.unlink(path)
deleted += 1
except (OSError, IOError):
pass
# Log it so we know when to get rid of this bandaid fix.
if deleted:
self.ui.log("features", feature="remove-svfs-dottmp")
if "segmentedchangelog" in self.storerequirements:
return changelog2.changelog.opensegments(self.svfs, self.ui.uiconfig())
if (
self.ui.configbool("experimental", "rust-commits")
and self.ui.configbool("experimental", "rust-commits")
and getattr(self.svfs, "options", {}).get("bypass-revlog-transaction")
and not "hgsql" in self.requirements
):
return changelog2.changelog.openrevlog(self.svfs, self.ui.uiconfig())
if "zstorecommitdata" in self.storerequirements:
zstore = bindings.zstore.zstore(self.svfs.join("hgcommits/v1"))
else:
zstore = None
return changelog.changelog(
self.svfs,
uiconfig=self.ui.uiconfig(),
trypending=txnutil.mayhavesharedpending(self.root, self.sharedroot),
zstore=zstore,
)
cl = loadchangelog(self)
# Migrate from inline to non-inline
# internal config: format.inline-changelog
if getattr(cl, "_inline", False) and not self.ui.configbool(
"format", "inline-changelog"
):
self.ui.write_err(_("(migrating to non-inlined changelog)\n"))
with self.lock():
cl = loadchangelog(self)
if cl._inline:
# See revlog.checkinlinesize
with cl.opener(cl.datafile, "w") as df:
for r in cl:
df.write(cl._getsegmentforrevs(r, r)[1])
with cl.opener(cl.indexfile, "w", atomictemp=True) as fp:
cl.version &= ~revlog.FLAG_INLINE_DATA
cl._inline = False
for i in cl:
e = cl._io.packentry(cl.index[i], cl.node, cl.version, i)
fp.write(e)
# Reopen
cl = loadchangelog(self)
return cl
def _constructmanifest(self):
# This is a temporary function while we migrate from manifest to
# manifestlog. It allows bundlerepo to intercept the manifest creation.
return manifest.manifestrevlog(self.svfs)
@storecache("00manifest.i", "00manifesttree.i")
def manifestlog(self):
return manifest.manifestlog(self.svfs, self)
@util.propertycache
def fileslog(self):
return filelog.fileslog(self)
@repofilecache(localpaths=["dirstate"])
def dirstate(self):
# type: () -> dirstate.dirstate
if edenfs.requirement in self.requirements:
return self._eden_dirstate
istreestate = "treestate" in self.requirements
# Block nontreestate repos entirely. Add a config to bypass in case we
# break something.
if not istreestate and self.ui.configbool("treestate", "required", True):
raise errormod.RequirementError(
"legacy dirstate implementations are no longer supported"
)
istreedirstate = "treedirstate" in self.requirements
return dirstate.dirstate(
self.localvfs,
self.ui,
self.root,
self._dirstatevalidate,
self,
istreestate=istreestate,
istreedirstate=istreedirstate,
)
@util.propertycache
def _eden_dirstate(self):
# type: () -> dirstate.dirstate
# Disable demand import when pulling in the thrift runtime,
# as it attempts to import missing modules and changes behavior
# based on what it finds. Demand import masks those and causes
# obscure and false import errors at runtime.
from edenscm import hgdemandimport
with hgdemandimport.deactivated():
from . import eden_dirstate as dirstate_reimplementation
return dirstate_reimplementation.eden_dirstate(self, self.ui, self.root)
def _dirstatevalidate(self, node):
# type: (bytes) -> bytes
self.changelog.rev(node)
return node
def __getitem__(self, changeid):
if changeid is None:
return context.workingctx(self)
if isinstance(changeid, slice):
# wdirrev isn't contiguous so the slice shouldn't include it
return [
context.changectx(self, i) for i in range(*changeid.indices(len(self)))
]
try:
return context.changectx(self, changeid)
except errormod.WdirUnsupported:
return context.workingctx(self)
def __contains__(self, changeid):
"""True if the given changeid exists
error.LookupError is raised if an ambiguous node specified.
"""
try:
self[changeid]
return True
except errormod.RepoLookupError:
return False
def __nonzero__(self):
return True
__bool__ = __nonzero__
def __len__(self):
return len(self.changelog)
def __iter__(self):
return iter(self.changelog)
def dageval(self, func):
"""Evaluate func with the current DAG context.
Unlike changelog.dageval, this function provides extra utilities:
- draft(): draft commits
- public(): public commits
- obsolete(): obsoleted commits
"""
def getphaseset(repo, phase):
return repo.changelog.tonodes(repo._phasecache.getrevset(repo, [phase]))
def removenull(nodes):
return [n for n in nodes if n != nullid]
return self.changelog.dageval(
func,
extraenv={
"dot": lambda: removenull(self.dirstate.parents()[:1]),
"draft": lambda: getphaseset(self, phases.draft),
"lookup": lambda *names: removenull([self[n].node() for n in names]),
"obsolete": lambda: mutation.obsoletenodes(self),
"public": lambda: getphaseset(self, phases.public),
},
)
def revs(self, expr, *args):
"""Find revisions matching a revset.
The revset is specified as a string ``expr`` that may contain
%-formatting to escape certain types. See ``revsetlang.formatspec``.
Revset aliases from the configuration are not expanded. To expand
user aliases, consider calling ``scmutil.revrange()`` or
``repo.anyrevs([expr], user=True)``.
Returns a revset.abstractsmartset, which is a list-like interface
that contains integer revisions.
"""
expr = revsetlang.formatspec(expr, *args)
m = revset.match(None, expr)
return m(self)
def set(self, expr, *args):
"""Find revisions matching a revset and emit changectx instances.
This is a convenience wrapper around ``revs()`` that iterates the
result and is a generator of changectx instances.
Revset aliases from the configuration are not expanded. To expand
user aliases, consider calling ``scmutil.revrange()``.
"""
for r in self.revs(expr, *args):
yield self[r]
def nodes(self, expr, *args):
"""Find revisions matching a revset and emit their nodes.
This is a convenience wrapper around ``revs()`` that iterates the
result and is a generator of nodes.
Revset aliases from the configuration are not expanded. To expand
user aliases, consider calling ``scmutil.revrange()``.
"""
clnode = self.changelog.node
for r in self.revs(expr, *args):
yield clnode(r)
def anyrevs(self, specs, user=False, localalias=None):
"""Find revisions matching one of the given revsets.
Revset aliases from the configuration are not expanded by default. To
expand user aliases, specify ``user=True``. To provide some local
definitions overriding user aliases, set ``localalias`` to
``{name: definitionstring}``.
"""
if user:
m = revset.matchany(self.ui, specs, repo=self, localalias=localalias)
else:
m = revset.matchany(None, specs, localalias=localalias)
return m(self)
def url(self):
return "file:" + self.root
def hook(self, name, throw=False, **args):
"""Call a hook, passing this repo instance.
This a convenience method to aid invoking hooks. Extensions likely
won't call this unless they have registered a custom hook or are
replacing code that is expected to call a hook.
"""
return hook.hook(self.ui, self, name, throw, **args)
@util.propertycache
def _mutationstore(self):
return mutation.makemutationstore(self)
def nodebookmarks(self, node):
"""return the list of bookmarks pointing to the specified node"""
marks = []
for bookmark, n in pycompat.iteritems(self._bookmarks):
if n == node:
marks.append(bookmark)
return sorted(marks)
def branchmap(self):
"""returns a dictionary {branch: [branchheads]} with branchheads
ordered by increasing revision number"""
branchmap.updatecache(self)
return self._branchcaches[None]
def branchtip(self, branch, ignoremissing=False):
"""return the tip node for a given branch
If ignoremissing is True, then this method will not raise an error.
This is helpful for callers that only expect None for a missing branch
(e.g. namespace).
"""
try:
return self.branchmap().branchtip(branch)
except KeyError:
if not ignoremissing:
raise errormod.RepoLookupError(_("unknown branch '%s'") % branch)
else:
pass
def lookup(self, key):
return self[key].node()
def lookupbranch(self, key, remote=None):
repo = remote or self
if key in repo.branchmap():
return key
repo = (remote and remote.local()) and remote or self
return repo[key].branch()
def known(self, nodes):
cl = self.changelog
nm = cl.nodemap
result = []
for n in nodes:
r = nm.get(n)
resp = not (r is None)
result.append(resp)
return result
def local(self):
return self
def publishing(self):
# narrow-heads repos are NOT publishing. This ensures pushing to a
# narrow-heads repo would cause visible heads changes to make the
# pushed commits visible. Otherwise the pushed commits are invisible
# during discovery if the push does not update bookmarks on the commit.
if "narrowheads" in self.storerequirements:
return False
# it's safe (and desirable) to trust the publish flag unconditionally
# so that we don't finalize changes shared between users via ssh or nfs
return self.ui.configbool("phases", "publish", untrusted=True)
def cancopy(self):
if not self.local():
return False
if not self.publishing():
return True
return True
def shared(self):
"""the type of shared repository (None if not shared)"""
if self.sharedpath != self.path:
return "store"
return None
def wjoin(self, f, *insidef):
return self.localvfs.reljoin(self.root, f, *insidef)
def file(self, f):
if f[0] == "/":
f = f[1:]
return filelog.filelog(self.svfs, f)
def changectx(self, changeid):
return self[changeid]
def setparents(self, p1, p2=nullid):
with self.dirstate.parentchange():
copies = self.dirstate.setparents(p1, p2)
pctx = self[p1]
if copies:
# Adjust copy records, the dirstate cannot do it, it
# requires access to parents manifests. Preserve them
# only for entries added to first parent.
for f in copies:
if f not in pctx and copies[f] in pctx:
self.dirstate.copy(copies[f], f)
if p2 == nullid:
for f, s in sorted(self.dirstate.copies().items()):
if f not in pctx and s not in pctx:
self.dirstate.copy(None, f)
def filectx(self, path, changeid=None, fileid=None):
"""changeid can be a changeset revision or node.
fileid can be a file revision or node."""
return context.filectx(self, path, changeid, fileid)
def getcwd(self):
return self.dirstate.getcwd()
def pathto(self, f, cwd=None):
return self.dirstate.pathto(f, cwd)
def _loadfilter(self, filter):
if filter not in self.filterpats:
l = []
for pat, cmd in self.ui.configitems(filter):
if cmd == "!":
continue
mf = matchmod.match(self.root, "", [pat])
fn = None
params = cmd
for name, filterfn in pycompat.iteritems(self._datafilters):
if cmd.startswith(name):
fn = filterfn
params = cmd[len(name) :].lstrip()
break
if not fn:
fn = lambda s, c, **kwargs: util.filter(s, c)
l.append((mf, fn, params))
self.filterpats[filter] = l
return self.filterpats[filter]
def _filter(self, filterpats, filename, data):
for mf, fn, cmd in filterpats:
if mf(filename):
self.ui.debug("filtering %s through %s\n" % (filename, cmd))
data = fn(data, cmd, ui=self.ui, repo=self, filename=filename)
break
return data
@util.propertycache
def _encodefilterpats(self):
return self._loadfilter("encode")
@util.propertycache
def _decodefilterpats(self):
return self._loadfilter("decode")
def adddatafilter(self, name, filter):
self._datafilters[name] = filter
def wread(self, filename):
if self.wvfs.islink(filename):
data = pycompat.encodeutf8(self.wvfs.readlink(filename))
else:
data = self.wvfs.read(filename)
return self._filter(self._encodefilterpats, filename, data)
def wwrite(self, filename, data, flags, backgroundclose=False):
# type: (str, bytes, str, bool) -> int
"""write ``data`` into ``filename`` in the working directory
This returns length of written (maybe decoded) data.
"""
data = self._filter(self._decodefilterpats, filename, data)
if "l" in flags:
self.wvfs.symlink(data, filename)
else:
self.wvfs.write(filename, data, backgroundclose=backgroundclose)
if "x" in flags:
self.wvfs.setflags(filename, False, True)
return len(data)
def wwritedata(self, filename, data):
return self._filter(self._decodefilterpats, filename, data)
def currenttransaction(self):
"""return the current transaction or None if non exists"""
if self._transref:
tr = self._transref()
else:
tr = None
if tr and tr.running():
return tr
return None
def transaction(self, desc, report=None):
if self.ui.configbool("devel", "all-warnings") or self.ui.configbool(
"devel", "check-locks"
):
if self._currentlock(self._lockref) is None:
raise errormod.ProgrammingError("transaction requires locking")
tr = self.currenttransaction()
if tr is not None:
return tr.nest()
# abort here if the journal already exists
if self.svfs.exists("journal"):
raise errormod.AbandonedTransactionFoundError(
_("abandoned transaction found"),
hint=_("run 'hg recover' to clean up transaction"),
)
idbase = b"%.40f#%f" % (random.random(), time.time())
ha = hex(hashlib.sha1(idbase).digest())
txnid = "TXN:" + ha
self.hook("pretxnopen", throw=True, txnname=desc, txnid=txnid)
self._writejournal(desc)
renames = [(vfs, x, undoname(x)) for vfs, x in self._journalfiles()]
if report:
rp = report
else:
rp = self.ui.warn
vfsmap = {"shared": self.sharedvfs, "local": self.localvfs}
# we must avoid cyclic reference between repo and transaction.
reporef = weakref.ref(self)
def validate(tr2):
"""will run pre-closing hooks"""
# XXX the transaction API is a bit lacking here so we take a hacky
# path for now
#
# We cannot add this as a "pending" hooks since the 'tr.hookargs'
# dict is copied before these run. In addition we needs the data
# available to in memory hooks too.
#
# Moreover, we also need to make sure this runs before txnclose
# hooks and there is no "pending" mechanism that would execute
# logic only if hooks are about to run.
#
# Fixing this limitation of the transaction is also needed to track
# other families of changes (bookmarks, phases, obsolescence).
#
# This will have to be fixed before we remove the experimental
# gating.
repo = reporef()
if hook.hashook(repo.ui, "pretxnclose-bookmark"):
for name, (old, new) in sorted(tr.changes["bookmarks"].items()):
args = tr.hookargs.copy()
args.update(bookmarks.preparehookargs(name, old, new))
repo.hook("pretxnclose-bookmark", throw=True, txnname=desc, **args)
if hook.hashook(repo.ui, "pretxnclose-phase"):
cl = repo.changelog
for rev, (old, new) in tr.changes["phases"].items():
args = tr.hookargs.copy()
node = hex(cl.node(rev))
args.update(phases.preparehookargs(node, old, new))
repo.hook("pretxnclose-phase", throw=True, txnname=desc, **args)
repo.hook("pretxnclose", throw=True, txnname=desc, **(tr.hookargs))
def flushchangelog(tr):
repo = reporef()
cl = repo.changelog
if cl.userust("addrevision"):
main = bookmarks.mainbookmark(repo)
mainnodes = []
if main in repo:
mainnodes.append(repo[main].node())
cl.inner.flush(mainnodes)
def releasefn(tr, success):
repo = reporef()
# Flush changelog zstore unconditionally. This makes the commit
# data available even if the transaction gets rolled back.
zstore = getattr(repo.changelog, "zstore", None)
if zstore is not None:
zstore.flush()
if success:
# this should be explicitly invoked here, because
# in-memory changes aren't written out at closing
# transaction, if tr.addfilegenerator (via
# dirstate.write or so) isn't invoked while
# transaction running
repo.dirstate.write(None)
flushchangelog(tr)
else:
# discard all changes (including ones already written
# out) in this transaction
repo.dirstate.restorebackup(None, "journal.dirstate")
repo.invalidate(clearfilecache=True)
tr = transaction.transaction(
rp,
self.svfs,
vfsmap,
"journal",
"undo",
aftertrans(renames),
self.store.createmode,
validator=validate,
releasefn=releasefn,
checkambigfiles=_cachedfiles,
uiconfig=self.ui.uiconfig(),
desc=desc,
)
tr.changes["nodes"] = []
tr.changes["obsmarkers"] = set()
tr.changes["phases"] = {}
tr.changes["bookmarks"] = {}
tr.hookargs["txnid"] = txnid
# TODO: Consider changing 'self' to 'reporef()'.
def commitnotransaction(tr):
self.commitpending()
def abortnotransaction(tr):
if "manifestlog" in self.__dict__:
self.manifestlog.abortpending()
if "fileslog" in self.__dict__:
self.fileslog.abortpending()
def writependingnotransaction(tr):
commitnotransaction(tr)
tr.addpending("notransaction", writependingnotransaction)
return False
tr.addfinalize("notransaction", commitnotransaction)
tr.addabort("notransaction", abortnotransaction)
tr.addpending("notransaction", writependingnotransaction)
tr.addpending("flushchangelog", flushchangelog)
# If any writes happened outside the transaction, go ahead and flush
# them before opening the new transaction.
commitnotransaction(None)
# note: writing the fncache only during finalize mean that the file is
# outdated when running hooks. As fncache is used for streaming clone,
# this is not expected to break anything that happen during the hooks.
tr.addfinalize("flush-fncache", self.store.write)
def txnclosehook(tr2):
"""To be run if transaction is successful, will schedule a hook run
"""
# Don't reference tr2 in hook() so we don't hold a reference.
# This reduces memory consumption when there are multiple
# transactions per lock. This can likely go away if issue5045
# fixes the function accumulation.
hookargs = tr2.hookargs
def hookfunc():
repo = reporef()
if hook.hashook(repo.ui, "txnclose-bookmark"):
bmchanges = sorted(tr.changes["bookmarks"].items())
for name, (old, new) in bmchanges:
args = tr.hookargs.copy()
args.update(bookmarks.preparehookargs(name, old, new))
repo.hook(
"txnclose-bookmark", throw=False, txnname=desc, **args
)
if hook.hashook(repo.ui, "txnclose-phase"):
cl = repo.changelog
phasemv = sorted(tr.changes["phases"].items())
for rev, (old, new) in phasemv:
args = tr.hookargs.copy()
node = hex(cl.node(rev))
args.update(phases.preparehookargs(node, old, new))
repo.hook("txnclose-phase", throw=False, txnname=desc, **args)
repo.hook("txnclose", throw=False, txnname=desc, **hookargs)
reporef()._afterlock(hookfunc)
tr.addfinalize("txnclose-hook", txnclosehook)
tr.addpostclose("warms-cache", self._buildcacheupdater(tr))
def txnaborthook(tr2):
"""To be run if transaction is aborted
"""
reporef().hook("txnabort", throw=False, txnname=desc, **tr2.hookargs)
tr.addabort("txnabort-hook", txnaborthook)
# avoid eager cache invalidation. in-memory data should be identical
# to stored data if transaction has no error.
tr.addpostclose("refresh-filecachestats", self._refreshfilecachestats)
self._transref = weakref.ref(tr)
return tr
def _journalfiles(self):
return (
(self.svfs, "journal"),
(self.localvfs, "journal.dirstate"),
(self.localvfs, "journal.branch"),
(self.localvfs, "journal.desc"),
(self.svfs, "journal.bookmarks"),
(self.svfs, "journal.phaseroots"),
(self.svfs, "journal.visibleheads"),
)
def undofiles(self):
return [(vfs, undoname(x)) for vfs, x in self._journalfiles()]
def _writejournal(self, desc):
self.dirstate.savebackup(None, "journal.dirstate")
self.localvfs.writeutf8("journal.branch", "default")
self.localvfs.writeutf8("journal.desc", "%d\n%s\n" % (len(self), desc))
self.svfs.write("journal.bookmarks", self.svfs.tryread("bookmarks"))
self.svfs.write("journal.phaseroots", self.svfs.tryread("phaseroots"))
self.svfs.write("journal.visibleheads", self.svfs.tryread("visibleheads"))
def recover(self):
with self.lock():
if self.svfs.exists("journal"):
self.ui.status(_("rolling back interrupted transaction\n"))
vfsmap = {
"": self.svfs,
"shared": self.sharedvfs,
"local": self.localvfs,
}
transaction.rollback(
self.svfs,
vfsmap,
"journal",
self.ui.warn,
checkambigfiles=_cachedfiles,
)
self.invalidate()
return True
else:
self.ui.warn(_("no interrupted transaction available\n"))
return False
def rollback(self, dryrun=False, force=False):
wlock = lock = dsguard = None
try:
wlock = self.wlock()
lock = self.lock()
if self.svfs.exists("undo"):
dsguard = dirstateguard.dirstateguard(self, "rollback")
return self._rollback(dryrun, force, dsguard)
else:
self.ui.warn(_("no rollback information available\n"))
return 1
finally:
release(dsguard, lock, wlock)
def _rollback(self, dryrun, force, dsguard):
ui = self.ui
try:
args = pycompat.decodeutf8(self.localvfs.read("undo.desc")).splitlines()
(oldlen, desc, detail) = (int(args[0]), args[1], None)
if len(args) >= 3:
detail = args[2]
oldtip = oldlen - 1
if detail and ui.verbose:
msg = _(
"repository tip rolled back to revision %d" " (undo %s: %s)\n"
) % (oldtip, desc, detail)
else:
msg = _("repository tip rolled back to revision %d" " (undo %s)\n") % (
oldtip,
desc,
)
except IOError:
msg = _("rolling back unknown transaction\n")
desc = None
if not force and self["."] != self["tip"] and desc == "commit":
raise errormod.Abort(
_("rollback of last commit while not checked out " "may lose data"),
hint=_("use -f to force"),
)
ui.status(msg)
if dryrun:
return 0
parents = self.dirstate.parents()
self.destroying()
vfsmap = {"": self.svfs, "shared": self.sharedvfs, "local": self.localvfs}
transaction.rollback(
self.svfs, vfsmap, "undo", ui.warn, checkambigfiles=_cachedfiles
)
if self.svfs.exists("undo.bookmarks"):
self.svfs.rename("undo.bookmarks", "bookmarks", checkambig=True)
if self.svfs.exists("undo.phaseroots"):
self.svfs.rename("undo.phaseroots", "phaseroots", checkambig=True)
if self.svfs.exists("undo.visibleheads"):
self.svfs.rename("undo.visibleheads", "visibleheads", checkambig=True)
self.invalidate()
parentgone = (
parents[0] not in self.changelog.nodemap
or parents[1] not in self.changelog.nodemap
)
if parentgone:
# prevent dirstateguard from overwriting already restored one
dsguard.close()
self.dirstate.restorebackup(None, "undo.dirstate")
try:
branch = self.localvfs.readutf8("undo.branch")
self.dirstate.setbranch(encoding.tolocal(branch))
except IOError:
ui.warn(
_(
"named branch could not be reset: "
"current branch is still '%s'\n"
)
% self.dirstate.branch()
)
parents = tuple([p.rev() for p in self[None].parents()])
if len(parents) > 1:
ui.status(
_("working directory now based on " "revisions %d and %d\n")
% parents
)
else:
ui.status(
_("working directory now based on " "revision %d\n") % parents
)
mergemod.mergestate.clean(self, self["."].node())
# TODO: if we know which new heads may result from this rollback, pass
# them to destroy(), which will prevent the branchhead cache from being
# invalidated.
self.destroyed()
return 0
def _buildcacheupdater(self, newtransaction):
"""called during transaction to build the callback updating cache
Lives on the repository to help extension who might want to augment
this logic. For this purpose, the created transaction is passed to the
method.
"""
# we must avoid cyclic reference between repo and transaction.
reporef = weakref.ref(self)
def updater(tr):
repo = reporef()
repo.updatecaches(tr)
return updater
def updatecaches(self, tr=None):
"""warm appropriate caches
If this function is called after a transaction closed. The transaction
will be available in the 'tr' argument. This can be used to selectively
update caches relevant to the changes in that transaction.
"""
if tr is not None and tr.hookargs.get("source") == "strip":
# During strip, many caches are invalid but
# later call to `destroyed` will refresh them.
return
def invalidatecaches(self):
self._branchcaches.clear()
self.invalidatevolatilesets()
def invalidatevolatilesets(self):
obsolete.clearobscaches(self)
mutation.clearobsoletecache(self)
if "_phasecache" in self._filecache and "_phasecache" in self.__dict__:
self._phasecache.invalidate()
def invalidatedirstate(self):
"""Invalidates the dirstate, causing the next call to dirstate
to check if it was modified since the last time it was read,
rereading it if it has.
This is different to dirstate.invalidate() that it doesn't always
rereads the dirstate. Use dirstate.invalidate() if you want to
explicitly read the dirstate again (i.e. restoring it to a previous
known good state)."""
# eden_dirstate has its own invalidation logic.
if edenfs.requirement in self.requirements:
self.dirstate.invalidate()
return
if hascache(self, "dirstate"):
for k in self.dirstate._filecache:
try:
delattr(self.dirstate, k)
except AttributeError:
pass
delattr(self, "dirstate")
def invalidate(self, clearfilecache=False):
"""Invalidates both store and non-store parts other than dirstate
If a transaction is running, invalidation of store is omitted,
because discarding in-memory changes might cause inconsistency
(e.g. incomplete fncache causes unintentional failure, but
redundant one doesn't).
"""
for k in list(self._filecache.keys()):
# dirstate is invalidated separately in invalidatedirstate()
if k == "dirstate":
continue
if (
k == "changelog"
and self.currenttransaction()
and (self.changelog._delayed or self.changelog.userust("addrevision"))
):
# The changelog object may store unwritten revisions. We don't
# want to lose them.
# TODO: Solve the problem instead of working around it.
continue
if k == "manifestlog" and "manifestlog" in self.__dict__:
# The manifestlog may have uncommitted additions, let's just
# flush them to disk so we don't lose them.
self.manifestlog.commitpending()
if clearfilecache:
del self._filecache[k]
try:
delattr(self, k)
except AttributeError:
pass
if "fileslog" in self.__dict__:
# The fileslog may have uncommitted additions, let's just
# flush them to disk so we don't lose them.
self.fileslog.commitpending()
del self.__dict__["fileslog"]
self.invalidatecaches()
if not self.currenttransaction():
# TODO: Changing contents of store outside transaction
# causes inconsistency. We should make in-memory store
# changes detectable, and abort if changed.
self.store.invalidatecaches()
def invalidatechangelog(self):
"""Invalidates the changelog. Discard pending changes."""
if "changelog" in self._filecache:
del self._filecache["changelog"]
if "changelog" in self.__dict__:
del self.__dict__["changelog"]
def invalidateall(self):
"""Fully invalidates both store and non-store parts, causing the
subsequent operation to reread any outside changes."""
# extension should hook this to invalidate its caches
self.invalidate()
self.invalidatedirstate()
def _refreshfilecachestats(self, tr):
"""Reload stats of cached files so that they are flagged as valid"""
for k, ce in self._filecache.items():
if k == "dirstate" or k not in self.__dict__:
continue
ce.refresh()
def _lock(
self,
vfs,
lockname,
wait,
releasefn,
acquirefn,
desc,
inheritchecker=None,
parentenvvar=None,
):
parentlock = None
# the contents of parentenvvar are used by the underlying lock to
# determine whether it can be inherited
if parentenvvar is not None:
parentlock = encoding.environ.get(parentenvvar)
timeout = 0
warntimeout = 0
if wait:
timeout = self.ui.configint("ui", "timeout")
warntimeout = self.ui.configint("ui", "timeout.warn")
l = lockmod.trylock(
self.ui,
vfs,
lockname,
timeout,
warntimeout,
releasefn=releasefn,
acquirefn=acquirefn,
desc=desc,
inheritchecker=inheritchecker,
parentlock=parentlock,
)
return l
def _afterlock(self, callback):
"""add a callback to be run when the repository is fully unlocked
The callback will be executed when the outermost lock is released
(with wlock being higher level than 'lock')."""
for ref in (self._wlockref, self._lockref):
l = ref and ref()
if l and l.held:
l.postrelease.append(callback)
break
else: # no lock have been found.
callback()
def lock(self, wait=True):
"""Lock the repository store (.hg/store) and return a weak reference
to the lock. Use this before modifying the store (e.g. committing or
stripping). If you are opening a transaction, get a lock as well.)
If both 'lock' and 'wlock' must be acquired, ensure you always acquires
'wlock' first to avoid a dead-lock hazard."""
l = self._currentlock(self._lockref)
if l is not None:
l.lock()
return l
if self.ui.configbool("devel", "debug-lockers"):
util.debugstacktrace(
"acquiring store lock for %s" % self.root, skip=1, depth=5
)
svfs = self.svfs
# Invalidate metalog state.
metalog = svfs.__dict__.pop("metalog", None)
if metalog and metalog.isdirty():
# |<- A ->|<----------- repo lock --------->|
# |<- B ->|<- transaction ->|<- C ->|
# ^^^^^^^
raise errormod.ProgrammingError(
"metalog should not be changed before repo.lock"
)
releasefn = None
if self.ui.configbool("experimental", "metalog"):
# XXX: metalog.commit should ideally be only called by a transaction
# close. However, there are misuses across the code base, so we
# cannot really rely on transaction now.
def metalogcommit():
metalog = svfs.__dict__.pop("metalog", None)
# |<- A ->|<----------- repo lock --------->|
# |<- B ->|<- transaction ->|<- C ->|
# ^^^^^^^
if metalog and metalog.isdirty():
raise errormod.ProgrammingError(
"metalog change outside a transaction is unsupported"
)
releasefn = metalogcommit
l = self._lock(
self.svfs,
"lock",
wait,
releasefn,
self.invalidate,
_("repository %s") % self.origroot,
)
self._lockref = weakref.ref(l)
return l
def _wlockchecktransaction(self):
if self.currenttransaction() is not None:
raise errormod.LockInheritanceContractViolation(
"wlock cannot be inherited in the middle of a transaction"
)
def wlock(self, wait=True):
"""Lock the non-store parts of the repository (everything under
.hg except .hg/store) and return a weak reference to the lock.
Use this before modifying files in .hg.
If both 'lock' and 'wlock' must be acquired, ensure you always acquires
'wlock' first to avoid a dead-lock hazard."""
l = self._wlockref and self._wlockref()
if l is not None and l.held:
l.lock()
return l
if self.ui.configbool("devel", "debug-lockers"):
util.debugstacktrace("acquiring wlock for %s" % self.root, skip=1, depth=5)
# We do not need to check for non-waiting lock acquisition. Such
# acquisition would not cause dead-lock as they would just fail.
if wait and (
self.ui.configbool("devel", "all-warnings")
or self.ui.configbool("devel", "check-locks")
):
if self._currentlock(self._lockref) is not None:
self.ui.develwarn('"wlock" acquired after "lock"')
# if this is a shared repo and we must also lock the shared wlock
# or else we can deadlock due to lock ordering issues
sharedwlock = None
if self.shared():
sharedwlock = self._lock(
self.sharedvfs,
"wlock",
wait,
None,
None,
_("shared repository %s") % self.sharedroot,
inheritchecker=self._wlockchecktransaction,
parentenvvar="HG_WLOCK_LOCKER",
)
def unlock():
if sharedwlock:
sharedwlock.release()
if self.dirstate.pendingparentchange():
self.dirstate.invalidate()
else:
self.dirstate.write(None)
self._filecache["dirstate"].refresh()
l = self._lock(
self.localvfs,
"wlock",
wait,
unlock,
self.invalidatedirstate,
_("working directory of %s") % self.origroot,
inheritchecker=self._wlockchecktransaction,
parentenvvar="HG_WLOCK_LOCKER",
)
self._wlockref = weakref.ref(l)
return l
def _currentlock(self, lockref):
"""Returns the lock if it's held, or None if it's not."""
if lockref is None:
return None
l = lockref()
if l is None or not l.held:
return None
return l
def currentwlock(self):
"""Returns the wlock if it's held, or None if it's not."""
return self._currentlock(self._wlockref)
def _filecommit(self, fctx, manifest1, manifest2, linkrev, tr, changelist):
"""
commit an individual file as part of a larger transaction
"""
fname = fctx.path()
fparent1 = manifest1.get(fname, nullid)
fparent2 = manifest2.get(fname, nullid)
node = fctx.filenode()
if node in [fparent1, fparent2]:
self.ui.debug("reusing %s filelog entry (parent match)\n" % fname)
if node == fparent1:
if manifest1.flags(fname) != fctx.flags():
changelist.append(fname)
else:
if manifest2.flags(fname) != fctx.flags():
changelist.append(fname)
return node
flog = self.file(fname)
meta = {}
copy = fctx.renamed()
# Is filelog metadata (currently only the copy information) unchanged?
# If it is, then filenode hash could be unchanged if data is also known
# unchanged. This allows fast path of adding new file nodes without
# calculating .data() or new hash.
#
# Metadata is unchanged if there is no copy information.
# Otherwise, the "copy from" revision needs to be checked.
metamatched = not bool(copy)
if copy and copy[0] != fname:
# Mark the new revision of this file as a copy of another
# file. This copy data will effectively act as a parent
# of this new revision. If this is a merge, the first
# parent will be the nullid (meaning "look up the copy data")
# and the second one will be the other parent. For example:
#
# 0 --- 1 --- 3 rev1 changes file foo
# \ / rev2 renames foo to bar and changes it
# \- 2 -/ rev3 should have bar with all changes and
# should record that bar descends from
# bar in rev2 and foo in rev1
#
# this allows this merge to succeed:
#
# 0 --- 1 --- 3 rev4 reverts the content change from rev2
# \ / merging rev3 and rev4 should use bar@rev2
# \- 2 --- 4 as the merge base
#
cfname, oldcrev = copy
crev = manifest1.get(cfname)
newfparent = fparent2
if manifest2: # branch merge
if fparent2 == nullid or crev is None: # copied on remote side
if cfname in manifest2:
crev = manifest2[cfname]
newfparent = fparent1
# Here, we used to search backwards through history to try to find
# where the file copy came from if the source of a copy was not in
# the parent directory. However, this doesn't actually make sense to
# do (what does a copy from something not in your working copy even
# mean?) and it causes bugs (eg, issue4476). Instead, we will warn
# the user that copy information was dropped, so if they didn't
# expect this outcome it can be fixed, but this is the correct
# behavior in this circumstance.
if crev:
self.ui.debug(" %s: copy %s:%s\n" % (fname, cfname, hex(crev)))
meta["copy"] = cfname
meta["copyrev"] = hex(crev)
metamatched = crev == oldcrev
fparent1, fparent2 = nullid, newfparent
else:
self.ui.warn(
_("warning: can't find ancestor for '%s' " "copied from '%s'!\n")
% (fname, cfname)
)
elif fparent1 == nullid:
fparent1, fparent2 = fparent2, nullid
elif fparent2 != nullid:
# is one parent an ancestor of the other?
fparentancestors = flog.commonancestorsheads(fparent1, fparent2)
if fparent1 in fparentancestors:
fparent1, fparent2 = fparent2, nullid
elif fparent2 in fparentancestors:
fparent2 = nullid
# Fast path: reuse rawdata? (skip .data() (ex. flagprocessors) and hash
# calculation)
if (
metamatched
and node is not None
# some filectxs do not support rawdata or flags
and util.safehasattr(fctx, "rawdata")
and util.safehasattr(fctx, "rawflags")
# some (external) filelogs do not have addrawrevision
and util.safehasattr(flog, "addrawrevision")
# parents must match to be able to reuse rawdata
and fctx.filelog().parents(node) == (fparent1, fparent2)
):
# node is different from fparents, no need to check manifest flag
changelist.append(fname)
if node in flog.nodemap:
self.ui.debug("reusing %s filelog node (exact match)\n" % fname)
return node
self.ui.debug("reusing %s filelog rawdata\n" % fname)
return flog.addrawrevision(
fctx.rawdata(), tr, linkrev, fparent1, fparent2, node, fctx.rawflags()
)
# is the file changed?
text = fctx.data()
if fparent2 != nullid or flog.cmp(fparent1, text) or meta:
changelist.append(fname)
return flog.add(text, meta, tr, linkrev, fparent1, fparent2)
# are just the flags changed during merge?
elif fname in manifest1 and manifest1.flags(fname) != fctx.flags():
changelist.append(fname)
return fparent1
def checkcommitpatterns(self, wctx, match, status, fail):
"""check for commit arguments that aren't committable"""
if match.isexact() or match.prefix():
matched = set(status.modified + status.added + status.removed)
for f in match.files():
f = self.dirstate.normalize(f)
if f == "." or f in matched:
continue
if f in status.deleted:
fail(f, _("file not found!"))
d = f + "/"
for mf in matched:
if mf.startswith(d):
break
else:
if self.wvfs.isdir(f):
fail(f, _("no match under directory!"))
elif f not in self.dirstate:
fail(f, _("file not tracked!"))
def commit(
self,
text="",
user=None,
date=None,
match=None,
force=False,
editor=False,
extra=None,
loginfo=None,
mutinfo=None,
):
"""Add a new revision to current repository.
Revision information is gathered from the working directory,
match can be used to filter the committed files. If editor is
supplied, it is called to get a commit message.
"""
if extra is None:
extra = {}
if loginfo is None:
loginfo = {}
def fail(f, msg):
raise errormod.Abort("%s: %s" % (f, msg))
if not match:
match = matchmod.always(self.root, "")
if not force:
match.bad = fail
wlock = lock = tr = None
try:
wlock = self.wlock()
lock = self.lock() # for recent changelog (see issue4368)
wctx = self[None]
merge = len(wctx.parents()) > 1
if not force and merge and not match.always():
raise errormod.Abort(
_(
"cannot partially commit a merge "
"(do not specify files or patterns)"
)
)
status = self.status(match=match, clean=force)
# make sure all explicit patterns are matched
if not force:
self.checkcommitpatterns(wctx, match, status, fail)
loginfo.update({"checkoutidentifier": self.dirstate.checkoutidentifier})
cctx = context.workingcommitctx(
self, status, text, user, date, extra, loginfo, mutinfo
)
# internal config: ui.allowemptycommit
allowemptycommit = (
wctx.branch() != wctx.p1().branch()
or extra.get("close")
or merge
or cctx.files()
or self.ui.configbool("ui", "allowemptycommit")
)
if not allowemptycommit:
return None
if merge and cctx.deleted():
raise errormod.Abort(_("cannot commit merge with missing files"))
ms = mergemod.mergestate.read(self)
mergeutil.checkunresolved(ms)
if editor:
cctx._text = editor(self, cctx)
edited = text != cctx._text
# Save commit message in case this transaction gets rolled back
# (e.g. by a pretxncommit hook). Leave the content alone on
# the assumption that the user will use the same editor again.
msgfn = self.savecommitmessage(cctx._text)
p1, p2 = self.dirstate.parents()
hookp1, hookp2 = hex(p1), (p2 != nullid and hex(p2) or "")
try:
self.hook("precommit", throw=True, parent1=hookp1, parent2=hookp2)
tr = self.transaction("commit")
ret = self.commitctx(cctx, True)
except: # re-raises
if edited:
self.ui.write(_("note: commit message saved in %s\n") % msgfn)
raise
# update bookmarks, dirstate and mergestate
bookmarks.update(self, [p1, p2], ret)
cctx.markcommitted(ret)
ms.reset()
tr.close()
finally:
lockmod.release(tr, lock, wlock)
def commithook(node=hex(ret), parent1=hookp1, parent2=hookp2):
# hack for command that use a temporary commit (eg: histedit)
# temporary commit got stripped before hook release
if self.changelog.hasnode(ret):
self.hook("commit", node=node, parent1=parent1, parent2=parent2)
self._afterlock(commithook)
return ret
def commitctx(self, ctx, error=False):
"""Add a new revision to current repository.
Revision information is passed via the context argument.
"""
tr = None
p1, p2 = ctx.p1(), ctx.p2()
user = ctx.user()
descriptionlimit = self.ui.configbytes("commit", "description-size-limit")
if descriptionlimit:
descriptionlen = len(ctx.description())
if descriptionlen > descriptionlimit:
raise errormod.Abort(
_("commit message length (%s) exceeds configured limit (%s)")
% (descriptionlen, descriptionlimit)
)
extraslimit = self.ui.configbytes("commit", "extras-size-limit")
if extraslimit:
extraslen = sum(len(k) + len(v) for k, v in pycompat.iteritems(ctx.extra()))
if extraslen > extraslimit:
raise errormod.Abort(
_("commit extras total size (%s) exceeds configured limit (%s)")
% (extraslen, extraslimit)
)
lock = self.lock()
try:
tr = self.transaction("commit")
trp = weakref.proxy(tr)
if ctx.manifestnode():
# reuse an existing manifest revision
mn = ctx.manifestnode()
files = ctx.files()
elif ctx.files():
m1ctx = p1.manifestctx()
m2ctx = p2.manifestctx()
mctx = m1ctx.copy()
m = mctx.read()
m1 = m1ctx.read()
m2 = m2ctx.read()
# Validate that the files that are checked in can be interpreted
# as utf8. This is to protect against potential crashes as we
# move to utf8 file paths. Changing encoding is a beast on top
# of storage format.
try:
for f in ctx.added():
if isinstance(f, bytes):
f.decode("utf-8")
except UnicodeDecodeError as inst:
raise errormod.Abort(
_("invalid file name encoding: %s!") % inst.object
)
# check in files
added = []
changed = []
removed = []
drop = []
def handleremove(f):
if f in m1 or f in m2:
removed.append(f)
if f in m:
del m[f]
drop.append(f)
for f in ctx.removed():
handleremove(f)
for f in sorted(ctx.modified() + ctx.added()):
if ctx[f] is None:
# in memctx this means removal
handleremove(f)
else:
added.append(f)
linkrev = len(self)
self.ui.note(_("committing files:\n"))
for f in added:
self.ui.note(f + "\n")
try:
fctx = ctx[f]
m[f] = self._filecommit(fctx, m1, m2, linkrev, trp, changed)
m.setflag(f, fctx.flags())
except OSError:
self.ui.warn(_("trouble committing %s!\n") % f)
raise
except IOError as inst:
errcode = getattr(inst, "errno", errno.ENOENT)
if error or errcode and errcode != errno.ENOENT:
self.ui.warn(_("trouble committing %s!\n") % f)
raise
# update manifest
self.ui.note(_("committing manifest\n"))
removed = sorted(removed)
drop = sorted(drop)
if added or drop:
mn = (
mctx.write(
trp,
linkrev,
p1.manifestnode(),
p2.manifestnode(),
added,
drop,
)
or p1.manifestnode()
)
else:
mn = p1.manifestnode()
files = changed + removed
else:
mn = p1.manifestnode()
files = []
# update changelog
self.ui.note(_("committing changelog\n"))
self.changelog.delayupdate(tr)
extra = ctx.extra().copy()
n = self.changelog.add(
mn,
files,
ctx.description(),
trp,
p1.node(),
p2.node(),
user,
ctx.date(),
extra,
)
xp1, xp2 = p1.hex(), p2 and p2.hex() or ""
self.hook("pretxncommit", throw=True, node=hex(n), parent1=xp1, parent2=xp2)
# set the new commit is proper phase
targetphase = phases.newcommitphase(self.ui)
if targetphase:
# retract boundary do not alter parent changeset.
# if a parent have higher the resulting phase will
# be compliant anyway
#
# if minimal phase was 0 we don't need to retract anything
phases.registernew(self, tr, targetphase, [n])
# Newly committed commits shouldn't be obsoleted.
if obsolete.isenabled(self, obsolete.createmarkersopt):
obsolete.revive([self[n]], "commit")
# Newly committed commits should be visible.
if targetphase > phases.public:
visibility.add(self, [n])
mutinfo = ctx.mutinfo()
if mutinfo is not None:
entry = mutation.createentry(n, mutinfo)
mutation.recordentries(self, [entry], skipexisting=False)
tr.close()
# Generate and log interesting data.
loginfo = ctx.loginfo()
path = os.path.commonprefix([os.path.dirname(p) for p in files])
if len(path) > 0:
loginfo.update({"common_directory_path": path})
diffnumber = diffprops.parserevfromcommitmsg(ctx.description())
if diffnumber is not None:
loginfo.update({"phabricator_diff_number": diffnumber})
self.ui.log("commit_info", node=hex(n), author=user, **loginfo)
return n
finally:
if tr:
tr.release()
lock.release()
def destroying(self):
"""Inform the repository that nodes are about to be destroyed.
Intended for use by strip and rollback, so there's a common
place for anything that has to be done before destroying history.
This is mostly useful for saving state that is in memory and waiting
to be flushed when the current lock is released. Because a call to
destroyed is imminent, the repo will be invalidated causing those
changes to stay in memory (waiting for the next unlock), or vanish
completely.
"""
# When using the same lock to commit and strip, the phasecache is left
# dirty after committing. Then when we strip, the repo is invalidated,
# causing those changes to disappear.
if "_phasecache" in vars(self):
self._phasecache.write()
def destroyed(self):
"""Inform the repository that nodes have been destroyed.
Intended for use by strip and rollback, so there's a common
place for anything that has to be done after destroying history.
"""
# When one tries to:
# 1) destroy nodes thus calling this method (e.g. strip)
# 2) use phasecache somewhere (e.g. commit)
#
# then 2) will fail because the phasecache contains nodes that were
# removed. We can either remove phasecache from the filecache,
# causing it to reload next time it is accessed, or simply filter
# the removed nodes now and write the updated cache.
self._phasecache.filterunknown(self)
self._phasecache.write()
# refresh all repository caches
self.updatecaches()
self.invalidate()
def walk(self, match, node=None):
"""
walk recursively through the directory tree or a given
changeset, finding all files matched by the match
function
"""
self.ui.deprecwarn("use repo[node].walk instead of repo.walk", "4.3")
return self[node].walk(match)
def status(
self,
node1=".",
node2=None,
match=None,
ignored=False,
clean=False,
unknown=False,
):
"""a convenience method that calls node1.status(node2)"""
return self[node1].status(node2, match, ignored, clean, unknown)
def addpostdsstatus(self, ps, afterdirstatewrite=True):
"""Add a callback to run within the wlock, at the point at which status
fixups happen.
On status completion, callback(wctx, status) will be called with the
wlock held, unless the dirstate has changed from underneath or the wlock
couldn't be grabbed.
If afterdirstatewrite is True, it runs after writing dirstate,
otherwise it runs before writing dirstate.
Callbacks should not capture and use a cached copy of the dirstate --
it might change in the meanwhile. Instead, they should access the
dirstate via wctx.repo().dirstate.
This list is emptied out after each status run -- extensions should
make sure it adds to this list each time dirstate.status is called.
Extensions should also make sure they don't call this for statuses
that don't involve the dirstate.
"""
# The list is located here for uniqueness reasons -- it is actually
# managed by the workingctx, but that isn't unique per-repo.
self._postdsstatus.append((ps, afterdirstatewrite))
def postdsstatus(self, afterdirstatewrite=True):
"""Used by workingctx to get the list of post-dirstate-status hooks."""
return [ps for (ps, after) in self._postdsstatus if after == afterdirstatewrite]
def clearpostdsstatus(self):
"""Used by workingctx to clear post-dirstate-status hooks."""
del self._postdsstatus[:]
def headrevs(self, start=None, includepublic=True, includedraft=True, reverse=True):
cl = self.changelog
if self.ui.configbool("experimental", "narrow-heads"):
if includedraft:
nodes = [
n
for n in self.dirstate.parents() + list(self._bookmarks.values())
if n != nullid
]
else:
nodes = []
# Do not treat the draft heads returned by remotenames as
# unconditionally visible. This makes it possible to hide
# them by "hg hide".
publicnodes, _draftnodes = _remotenodes(self)
cl = self.changelog
torev = cl.nodemap.get
if includepublic:
nodes += publicnodes
if includedraft:
if cl._uiconfig.configbool("visibility", "all-heads"):
visibleheads = cl._visibleheads.allheads()
else:
visibleheads = cl._visibleheads.heads
nodes += visibleheads
# Do not report nullid. index2.headsancestors does not support it.
if cl.userust("index2"):
hasnode = cl.hasnode
nodes = [n for n in set(nodes) - {nullid} if hasnode(n)]
headnodes = cl.dag.headsancestors(nodes)
headrevs = list(cl.torevs(headnodes))
else:
revs = [r for r in map(torev, nodes) if r is not None and r >= 0]
headrevs = cl.index2.headsancestors(revs)
# headrevs is already in DESC.
reverse = not reverse
else:
headrevs = cl.rawheadrevs()
if start is not None:
startrev = cl.rev(start)
headrevs = [r for r in headrevs if r > startrev]
if reverse:
return list(reversed(headrevs))
else:
return headrevs
def heads(self, start=None, includepublic=True, includedraft=True):
headrevs = self.headrevs(start, includepublic, includedraft)
return list(map(self.changelog.node, headrevs))
def branchheads(self, branch=None, start=None, closed=False):
"""return a list of heads for the given branch
Heads are returned in topological order, from newest to oldest.
If branch is None, use the dirstate branch.
If start is not None, return only heads reachable from start.
If closed is True, return heads that are marked as closed as well.
"""
if branch is None:
branch = self[None].branch()
branches = self.branchmap()
if branch not in branches:
return []
# the cache returns heads ordered lowest to highest
bheads = list(reversed(branches.branchheads(branch, closed=closed)))
if start is not None:
# filter out the heads that cannot be reached from startrev
fbheads = set(self.changelog.nodesbetween([start], bheads)[2])
bheads = [h for h in bheads if h in fbheads]
return bheads
def branches(self, nodes):
if not nodes:
nodes = [self.changelog.tip()]
b = []
for n in nodes:
t = n
while True:
p = self.changelog.parents(n)
if p[1] != nullid or p[0] == nullid:
b.append((t, n, p[0], p[1]))
break
n = p[0]
return b
def between(self, pairs):
r = []
for top, bottom in pairs:
n, l, i = top, [], 0
f = 1
while n != bottom and n != nullid:
p = self.changelog.parents(n)[0]
if i == f:
l.append(n)
f = f * 2
n = p
i += 1
r.append(l)
return r
def checkpush(self, pushop):
"""Extensions can override this function if additional checks have
to be performed before pushing, or call it if they override push
command.
"""
@util.propertycache
def prepushoutgoinghooks(self):
"""Return util.hooks consists of a pushop with repo, remote, outgoing
methods, which are called before pushing changesets.
"""
return util.hooks()
def pushkey(self, namespace, key, old, new):
try:
tr = self.currenttransaction()
hookargs = {}
if tr is not None:
hookargs.update(tr.hookargs)
hookargs["namespace"] = namespace
hookargs["key"] = key
hookargs["old"] = old
hookargs["new"] = new
self.hook("prepushkey", throw=True, **hookargs)
except errormod.HookAbort as exc:
self.ui.write_err(_("pushkey-abort: %s\n") % exc)
if exc.hint:
self.ui.write_err(_("(%s)\n") % exc.hint)
return False
self.ui.debug('pushing key for "%s:%s"\n' % (namespace, key))
ret = pushkey.push(self, namespace, key, old, new)
def runhook():
self.hook(
"pushkey", namespace=namespace, key=key, old=old, new=new, ret=ret
)
self._afterlock(runhook)
return ret
def listkeys(self, namespace, patterns=None):
self.hook("prelistkeys", throw=True, namespace=namespace)
self.ui.debug('listing keys for "%s"\n' % namespace)
values = pushkey.list(self, namespace)
self.hook("listkeys", namespace=namespace, values=values)
if patterns is not None and namespace == "bookmarks":
bmarks = values
values = util.sortdict()
for pattern in patterns:
if pattern.endswith("*"):
pattern = "re:^" + pattern[:-1] + ".*"
kind, pat, matcher = util.stringmatcher(pattern)
for bookmark, node in pycompat.iteritems(bmarks):
if matcher(bookmark):
values[bookmark] = node
return values
def debugwireargs(self, one, two, three=None, four=None, five=None):
"""used to test argument passing over the wire"""
return "%s %s %s %s %s" % (one, two, three, four, five)
def savecommitmessage(self, text):
self.localvfs.writeutf8("last-message.txt", text)
path = self.localvfs.join("last-message.txt")
return self.pathto(path[len(self.root) + 1 :])
def automigratestart(self):
"""perform potentially expensive in-place migrations
Called at the start of pull if pull.automigrate is true
"""
try:
with self.wlock(wait=False), self.lock(wait=False):
treestate.automigrate(self)
mutation.automigrate(self)
visibility.automigrate(self)
except errormod.LockHeld:
self.ui.debug("skipping automigrate because lock is held\n")
except errormod.AbandonedTransactionFoundError:
# Migration can fail if the repository has an abandoned transaction
# and needs to be manually recovered. Ignore this for now and proceed,
# so that read-only operations in the repository still work. The abandoned
# transaction will still block commands that need to modify the repository,
# but those will fail later.
self.ui.debug("skipping automigrate due to an abandoned transaction\n")
def automigratefinish(self):
"""perform potentially expensive in-place migrations
Called at the end of pull if pull.automigrate is true
"""
pass
@property
def smallcommitmetadata(self):
# Load smallcommitmetdata lazily because it is rarely used.
if self._smallcommitmetadata is None:
self._smallcommitmetadata = smallcommitmetadata.smallcommitmetadata(
self.cachevfs, self.ui.configint("smallcommitmetadata", "entrylimit")
)
return self._smallcommitmetadata
# used to avoid circular references so destructors work
def aftertrans(files):
renamefiles = [tuple(t) for t in files]
def a():
for vfs, src, dest in renamefiles:
# if src and dest refer to a same file, vfs.rename is a no-op,
# leaving both src and dest on disk. delete dest to make sure
# the rename couldn't be such a no-op.
vfs.tryunlink(dest)
try:
vfs.rename(src, dest)
except OSError: # journal file does not yet exist
pass
return a
def undoname(fn):
base, name = os.path.split(fn)
assert name.startswith("journal")
return os.path.join(base, name.replace("journal", "undo", 1))
def instance(ui, path, create):
return localrepository(ui, util.urllocalpath(path), create)
def islocal(path):
return True
def newreporequirements(repo):
"""Determine the set of requirements for a new local repository.
Extensions can wrap this function to specify custom requirements for
new repositories.
"""
ui = repo.ui
requirements = {"revlogv1"}
if ui.configbool("format", "usestore"):
requirements.add("store")
if ui.configbool("format", "usefncache"):
requirements.add("fncache")
if ui.configbool("format", "dotencode"):
requirements.add("dotencode")
compengine = ui.config("experimental", "format.compression")
if compengine not in util.compengines:
raise errormod.Abort(
_(
"compression engine %s defined by "
"experimental.format.compression not available"
)
% compengine,
hint=_('run "hg debuginstall" to list available ' "compression engines"),
)
requirements.add("treestate")
# zlib is the historical default and doesn't need an explicit requirement.
if compengine != "zlib":
requirements.add("exp-compression-%s" % compengine)
if scmutil.gdinitconfig(ui):
requirements.add("generaldelta")
if ui.configbool("experimental", "treemanifest"):
requirements.add("treemanifest")
return requirements
def newrepostorerequirements(repo):
ui = repo.ui
requirements = set()
# hgsql wants stable legacy revlog access, bypassing visibleheads,
# narrow-heads, and zstore-commit-data.
if "hgsql" in repo.requirements:
return requirements
if ui.configbool("visibility", "enabled"):
requirements.add("visibleheads")
# See also self._narrowheadsmigration()
if (
ui.configbool("experimental", "narrow-heads")
and ui.configbool("visibility", "enabled")
and extensions.isenabled(ui, "remotenames")
):
requirements.add("narrowheads")
if ui.configbool("format", "use-zstore-commit-data"):
requirements.add("zstorecommitdata")
if ui.configbool("format", "use-segmented-changelog"):
requirements.add("segmentedchangelog")
# linkrev are not going to work with segmented changelog,
# because the numbers might get rewritten.
requirements.add("invalidatelinkrev")
return requirements
def _remotenodes(repo):
"""Return (remote public nodes, remote draft nodes)."""
publicnodes = []
draftnodes = []
draftpattern = repo.ui.config("infinitepush", "branchpattern")
if draftpattern:
isdraft = util.stringmatcher(draftpattern)[-1]
else:
def isdraft(name):
return False
remotebookmarks = repo._remotenames["bookmarks"]
for fullname, nodes in remotebookmarks.items():
# fullname: remote/foo/bar
# remote: remote, name: foo/bar
remote, name = bookmarks.splitremotename(fullname)
if isdraft(name):
draftnodes += nodes
else:
publicnodes += nodes
return publicnodes, draftnodes
Reference in New Issue View Git Blame Copy Permalink