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9dc21f8d0b
Summary: D13853115 adds `edenscm/` to `sys.path` and code still uses `import mercurial`. That has nasty problems if both `import mercurial` and `import edenscm.mercurial` are used, because Python would think `mercurial.foo` and `edenscm.mercurial.foo` are different modules so code like `try: ... except mercurial.error.Foo: ...`, or `isinstance(x, mercurial.foo.Bar)` would fail to handle the `edenscm.mercurial` version. There are also some module-level states (ex. `extensions._extensions`) that would cause trouble if they have multiple versions in a single process. Change imports to use the `edenscm` so ideally the `mercurial` is no longer imported at all. Add checks in extensions.py to catch unexpected extensions importing modules from the old (wrong) locations when running tests. Reviewed By: phillco Differential Revision: D13868981 fbshipit-source-id: f4e2513766957fd81d85407994f7521a08e4de48
82 lines
2.8 KiB
Python
82 lines
2.8 KiB
Python
# Copyright 2017 Facebook, Inc.
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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"""
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extension for cleaning users' obsstore
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this extension can be used for very narrow purpose. It deletes useless
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obsmarkers from obsstore. 'Useless' is defined as marker whose username is in a
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list of bad usernames (see config options below).
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For example, if automation created lots of obsolete markers that were
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accidentally pulled by many users then this extension can help. Probably the
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better way to find useless markers is to check if precursor node is present in
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the repo but it will be slower.
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Also note that this extension will run only once.
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::
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[cleanobsstore]
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# list of usernames whose markers to delete from obsstore
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badusernames =
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# if obsstore size is bigger than obsstoresizelimit then we should try to
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# clean it
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obsstoresizelimit = 500000
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"""
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from __future__ import absolute_import, division, print_function
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from edenscm.mercurial import obsutil, repair
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from edenscm.mercurial.i18n import _
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_cleanedobsstorefile = b"cleanedobsstore"
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def reposetup(ui, repo):
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if repo.obsstore:
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indicestodelete = []
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if _needtoclean(ui, repo):
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repo._wlockfreeprefix.add(_cleanedobsstorefile)
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_write(ui, "your obsstore is big, checking if we can clean it")
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badusernames = ui.configlist("cleanobsstore", "badusernames")
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for index, data in enumerate(repo.obsstore._all):
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marker = obsutil.marker(repo, data)
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username = marker.metadata().get("user")
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if username:
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if username in badusernames:
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indicestodelete.append(index)
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# Intentionally marked as cleaned before the actual cleaning.
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# This is to avoid repeatedly iterating through the whole
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# obsstore for users who have many obsmarkers
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_markcleaned(repo)
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if indicestodelete:
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_write(
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ui,
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_(
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"cleaning your obsstore to make hg faster; "
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+ "it is a one-time operation, please wait..."
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),
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)
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with repo.lock():
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repair.deleteobsmarkers(repo.obsstore, indicestodelete)
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def _needtoclean(ui, repo):
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obsstoresizelimit = ui.configint("cleanobsstore", "obsstoresizelimit", 500000)
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return repo.svfs.stat(
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"obsstore"
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).st_size >= obsstoresizelimit and not repo.localvfs.exists(_cleanedobsstorefile)
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def _markcleaned(repo):
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with repo.localvfs(_cleanedobsstorefile, "w") as f:
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f.write("1") # any text will do
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def _write(ui, msg):
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if ui.interactive() and not ui.plain("cleanobsstore"):
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ui.warn(_("%s\n") % msg)
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