Mercurial > hg
view hgext/narrow/__init__.py @ 36821:0c7350656f93
xdiff: add comments for fields in xdfile_t
This makes the related code easier to understand.
Differential Revision: https://phab.mercurial-scm.org/D2685
author | Jun Wu <quark@fb.com> |
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date | Sun, 04 Mar 2018 11:30:16 -0800 |
parents | d0d5eef57fb0 |
children | e2d386b8a38f |
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# __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 ( changegroup, extensions, hg, localrepo, registrar, verify as verifymod, ) from . import ( narrowbundle2, narrowchangegroup, narrowcommands, narrowcopies, narrowdirstate, narrowmerge, 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 localrepo.localrepository._basesupported.add(changegroup.NARROW_REQUIREMENT) def uisetup(ui): """Wraps user-facing mercurial commands with narrow-aware versions.""" narrowrevlog.setup() narrowbundle2.setup() narrowmerge.setup() narrowcommands.setup() narrowchangegroup.setup() narrowwirepeer.uisetup() def reposetup(ui, repo): """Wraps local repositories with narrow repo support.""" if not isinstance(repo, localrepo.localrepository): return narrowrepo.wraprepo(repo) if changegroup.NARROW_REQUIREMENT in repo.requirements: narrowcopies.setup(repo) narrowdirstate.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) extensions.wrapfunction(hg, 'postshare', narrowrepo.wrappostshare) extensions.wrapfunction(hg, 'copystore', narrowrepo.unsharenarrowspec) templatekeyword = narrowtemplates.templatekeyword revsetpredicate = narrowtemplates.revsetpredicate