upstream/mercurial-mirror Files · hgext/fastannotate/error.py

rust-dirstatemap: cache non normal and other parent set...

rust-dirstatemap: cache non normal and other parent set Performance of `hg update` was significantly worse since the introduction of the Rust `dirstatemap`. This regression was noticed by Valentin Gatien-Baron when working on a large repository, as it goes unnoticed for smaller repositories like Mercurial itself. This fix introduces the same getter/setter mechanism at `hg-core` level as for `set/get_dirs`. While this technique is, as previously discussed, quite suboptimal, it fixes an important enough problem. Refactoring `hg-core` to use the typestate pattern could be a good approach to improving code quality in a future patch. Differential Revision: https://phab.mercurial-scm.org/D8048

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      # Copyright 2016-present Facebook. All Rights Reserved.

      #

      # error: errors used in fastannotate

      #

      # This software may be used and distributed according to the terms of the

      # GNU General Public License version 2 or any later version.

      from __future__ import absolute_import

      class CorruptedFileError(Exception):

          pass

      class CannotReuseError(Exception):

          """cannot reuse or update the cache incrementally"""

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				# Copyright 2016-present Facebook. All Rights Reserved.
				#
				# error: errors used in fastannotate
				#
				# This software may be used and distributed according to the terms of the
				# GNU General Public License version 2 or any later version.
				from __future__ import absolute_import


				class CorruptedFileError(Exception):
				pass


				class CannotReuseError(Exception):
				"""cannot reuse or update the cache incrementally"""