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584656dff3
Summary: Turned on the auto formatter. Ran `arc lint --apply-patches --take BLACK **/*.py`. Then run `arc lint` again so some other autofixers like spellchecker etc. looked at the code base. Manually accept the changes whenever they make sense, or use a workaround (ex. changing "dict()" to "dict constructor") where autofix is false positive. Disabled linters on files that are hard (i18n/polib.py) to fix, or less interesting to fix (hgsubversion tests), or cannot be fixed without breaking OSS build (FBPYTHON4). Conflicted linters (test-check-module-imports.t, part of test-check-code.t, test-check-pyflakes.t) are removed or disabled. Duplicated linters (test-check-pyflakes.t, test-check-pylint.t) are removed. An issue of the auto-formatter is lines are no longer guarnateed to be <= 80 chars. But that seems less important comparing with the benefit auto-formatter provides. As we're here, also remove test-check-py3-compat.t, as it is currently broken if `PYTHON3=/bin/python3` is set. Reviewed By: wez, phillco, simpkins, pkaush, singhsrb Differential Revision: D8173629 fbshipit-source-id: 90e248ae0c5e6eaadbe25520a6ee42d32005621b
69 lines
2.2 KiB
Python
69 lines
2.2 KiB
Python
# dirstateguard.py - class to allow restoring dirstate after failure
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#
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# Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
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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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from __future__ import absolute_import
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from . import error, util
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from .i18n import _
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class dirstateguard(util.transactional):
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"""Restore dirstate at unexpected failure.
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At the construction, this class does:
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- write current ``repo.dirstate`` out, and
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- save ``.hg/dirstate`` into the backup file
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This restores ``.hg/dirstate`` from backup file, if ``release()``
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is invoked before ``close()``.
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This just removes the backup file at ``close()`` before ``release()``.
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"""
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def __init__(self, repo, name):
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self._repo = repo
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self._active = False
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self._closed = False
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self._backupname = "dirstate.backup.%s.%d" % (name, id(self))
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repo.dirstate.savebackup(repo.currenttransaction(), self._backupname)
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self._active = True
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def __del__(self):
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if self._active: # still active
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# this may occur, even if this class is used correctly:
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# for example, releasing other resources like transaction
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# may raise exception before ``dirstateguard.release`` in
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# ``release(tr, ....)``.
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self._abort()
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def close(self):
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if not self._active: # already inactivated
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msg = _("can't close already inactivated backup: %s") % self._backupname
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raise error.Abort(msg)
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self._repo.dirstate.clearbackup(
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self._repo.currenttransaction(), self._backupname
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)
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self._active = False
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self._closed = True
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def _abort(self):
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self._repo.dirstate.restorebackup(
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self._repo.currenttransaction(), self._backupname
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)
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self._active = False
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def release(self):
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if not self._closed:
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if not self._active: # already inactivated
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msg = (
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_("can't release already inactivated backup: %s") % self._backupname
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)
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raise error.Abort(msg)
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self._abort()
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