##// END OF EJS Templates
narrow: extract wdir cleanup function to make it extensible...
narrow: extract wdir cleanup function to make it extensible We have an overlay filesystem which shows the entire repository, and unlinking a file that's in the underlying data store will create "tombstone" entries, which are going to cause our automatic tracking to re-add these directories. We need to use a different (non-posix) interface to clean up items in the working directory that are no longer relevant. Extracting this to a function lets us use extensions.wrappedfunction and perform this cleanup work, even if the paths aren't in the dirstate (they may have been removed in the past and thus entirely "tombstone" entries already, part of hgignore, exclusively directories (possibly empty), or other edge cases). Differential Revision: https://phab.mercurial-scm.org/D4681

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__init__.py
88 lines | 2.9 KiB | text/x-python | PythonLexer
# __init__.py - narrowhg extension
#
# Copyright 2017 Google, Inc.
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
'''create clones which fetch history data for subset of files (EXPERIMENTAL)'''
from __future__ import absolute_import
# Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for
# extensions which SHIP WITH MERCURIAL. Non-mainline extensions should
# be specifying the version(s) of Mercurial they are tested with, or
# leave the attribute unspecified.
testedwith = 'ships-with-hg-core'
from mercurial import (
extensions,
localrepo,
registrar,
repository,
verify as verifymod,
)
from . import (
narrowbundle2,
narrowcommands,
narrowcopies,
narrowpatch,
narrowrepo,
narrowrevlog,
narrowtemplates,
narrowwirepeer,
)
configtable = {}
configitem = registrar.configitem(configtable)
# Narrowhg *has* support for serving ellipsis nodes (which are used at
# least by Google's internal server), but that support is pretty
# fragile and has a lot of problems on real-world repositories that
# have complex graph topologies. This could probably be corrected, but
# absent someone needing the full support for ellipsis nodes in
# repositories with merges, it's unlikely this work will get done. As
# of this writining in late 2017, all repositories large enough for
# ellipsis nodes to be a hard requirement also enforce strictly linear
# history for other scaling reasons.
configitem('experimental', 'narrowservebrokenellipses',
default=False,
alias=[('narrow', 'serveellipses')],
)
# Export the commands table for Mercurial to see.
cmdtable = narrowcommands.table
def featuresetup(ui, features):
features.add(repository.NARROW_REQUIREMENT)
def uisetup(ui):
"""Wraps user-facing mercurial commands with narrow-aware versions."""
localrepo.featuresetupfuncs.add(featuresetup)
narrowrevlog.setup()
narrowbundle2.setup()
narrowcommands.setup()
narrowwirepeer.uisetup()
def reposetup(ui, repo):
"""Wraps local repositories with narrow repo support."""
if not repo.local():
return
if repository.NARROW_REQUIREMENT in repo.requirements:
narrowrepo.wraprepo(repo)
narrowcopies.setup(repo)
narrowpatch.setup(repo)
narrowwirepeer.reposetup(repo)
def _verifierinit(orig, self, repo, matcher=None):
# The verifier's matcher argument was desgined for narrowhg, so it should
# be None from core. If another extension passes a matcher (unlikely),
# we'll have to fail until matchers can be composed more easily.
assert matcher is None
orig(self, repo, repo.narrowmatch())
def extsetup(ui):
extensions.wrapfunction(verifymod.verifier, '__init__', _verifierinit)
templatekeyword = narrowtemplates.templatekeyword
revsetpredicate = narrowtemplates.revsetpredicate