Mercurial > hg
view tests/fakedirstatewritetime.py @ 42304:9c6c0f736e1d
rust-dirstate: call parse/pack bindings from Python
A future patch will need to address the issue of Rust module policy,
to avoid having ugly duplicate imports and conditionals all over the place.
As the rewrite of dirstate in Rust progresses, we will need fewer of those
"contact points".
Differential Revision: https://phab.mercurial-scm.org/D6350
author | Raphaël Gomès <rgomes@octobus.net> |
---|---|
date | Mon, 06 May 2019 22:51:10 +0200 |
parents | fdd4d668ceb5 |
children | 760a7851e9ba |
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# extension to emulate invoking 'dirstate.write()' at the time # specified by '[fakedirstatewritetime] fakenow', only when # 'dirstate.write()' is invoked via functions below: # # - 'workingctx._poststatusfixup()' (= 'repo.status()') # - 'committablectx.markcommitted()' from __future__ import absolute_import from mercurial import ( context, dirstate, extensions, policy, registrar, ) from mercurial.utils import dateutil try: from mercurial import rustext rustext.__name__ # force actual import (see hgdemandimport) except ImportError: rustext = None configtable = {} configitem = registrar.configitem(configtable) configitem(b'fakedirstatewritetime', b'fakenow', default=None, ) parsers = policy.importmod(r'parsers') def pack_dirstate(fakenow, orig, dmap, copymap, pl, now): # execute what original parsers.pack_dirstate should do actually # for consistency actualnow = int(now) for f, e in dmap.items(): if e[0] == 'n' and e[3] == actualnow: e = parsers.dirstatetuple(e[0], e[1], e[2], -1) dmap[f] = e return orig(dmap, copymap, pl, fakenow) def fakewrite(ui, func): # fake "now" of 'pack_dirstate' only if it is invoked while 'func' fakenow = ui.config(b'fakedirstatewritetime', b'fakenow') if not fakenow: # Execute original one, if fakenow isn't configured. This is # useful to prevent subrepos from executing replaced one, # because replacing 'parsers.pack_dirstate' is also effective # in subrepos. return func() # parsing 'fakenow' in YYYYmmddHHMM format makes comparison between # 'fakenow' value and 'touch -t YYYYmmddHHMM' argument easy fakenow = dateutil.parsedate(fakenow, [b'%Y%m%d%H%M'])[0] if rustext is not None: orig_module = rustext.dirstate orig_pack_dirstate = rustext.dirstate.pack_dirstate else: orig_module = parsers orig_pack_dirstate = parsers.pack_dirstate orig_dirstate_getfsnow = dirstate._getfsnow wrapper = lambda *args: pack_dirstate(fakenow, orig_pack_dirstate, *args) orig_module.pack_dirstate = wrapper dirstate._getfsnow = lambda *args: fakenow try: return func() finally: orig_module.pack_dirstate = orig_pack_dirstate dirstate._getfsnow = orig_dirstate_getfsnow def _poststatusfixup(orig, workingctx, status, fixup): ui = workingctx.repo().ui return fakewrite(ui, lambda : orig(workingctx, status, fixup)) def markcommitted(orig, committablectx, node): ui = committablectx.repo().ui return fakewrite(ui, lambda : orig(committablectx, node)) def extsetup(ui): extensions.wrapfunction(context.workingctx, '_poststatusfixup', _poststatusfixup) extensions.wrapfunction(context.workingctx, 'markcommitted', markcommitted)