upstream/mercurial-mirror Files · mercurial/thirdparty/attr/exceptions.py

revlog: always process opener options...

revlog: always process opener options I'm not sure when ``opener.options`` would ever be explicitly set to None. It is definitely not possible to construct a repo this way because ``localrepo.resolvestorevfsoptions()`` always returns a dict and ``localrepo.makelocalrepository()`` always sets ``opener.options`` to this value. Because we always execute this code now, if options are empty we defaulted to creating version 0 revlogs. So we had to change the code slightly to fall back to the default revlog version and flags. As astute reader will note that it is not possible to create version 0 revlogs now. However, I don't think it was possible before, as this required ``opener.options`` being unset, which I don't think was possible. I suspect this means our test coverage for version 0 revlog repositories is possibly non-existent! Since I don't see a config option to disable revlog v1, I'm not even sure if we had a way to create new repos with version 0 revlogs! Who knows. Differential Revision: https://phab.mercurial-scm.org/D5559

Siddharth Agarwal - - Load All Authors

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      from __future__ import absolute_import, division, print_function

      class FrozenInstanceError(AttributeError):

          """

          A frozen/immutable instance has been attempted to be modified.

          It mirrors the behavior of ``namedtuples`` by using the same error message

          and subclassing :exc:`AttributeError`.

          .. versionadded:: 16.1.0

          """

          msg = "can't set attribute"

          args = [msg]

      class AttrsAttributeNotFoundError(ValueError):

          """

          An ``attrs`` function couldn't find an attribute that the user asked for.

          .. versionadded:: 16.2.0

          """

      class NotAnAttrsClassError(ValueError):

          """

          A non-``attrs`` class has been passed into an ``attrs`` function.

          .. versionadded:: 16.2.0

          """

      class DefaultAlreadySetError(RuntimeError):

          """

          A default has been set using ``attr.ib()`` and is attempted to be reset

          using the decorator.

          .. versionadded:: 17.1.0

          """

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				from __future__ import absolute_import, division, print_function


				class FrozenInstanceError(AttributeError):
				"""
				A frozen/immutable instance has been attempted to be modified.

				It mirrors the behavior of ``namedtuples`` by using the same error message
				and subclassing :exc:`AttributeError`.

				.. versionadded:: 16.1.0
				"""
				msg = "can't set attribute"
				args = [msg]


				class AttrsAttributeNotFoundError(ValueError):
				"""
				An ``attrs`` function couldn't find an attribute that the user asked for.

				.. versionadded:: 16.2.0
				"""


				class NotAnAttrsClassError(ValueError):
				"""
				A non-``attrs`` class has been passed into an ``attrs`` function.

				.. versionadded:: 16.2.0
				"""


				class DefaultAlreadySetError(RuntimeError):
				"""
				A default has been set using ``attr.ib()`` and is attempted to be reset
				using the decorator.

				.. versionadded:: 17.1.0
				"""