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class BzrLibraryState(object):
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"""The state about how bzrlib has been configured.
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"""The state about how brzlib has been configured.
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This is the core state needed to make use of bzr. The current instance is
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currently always exposed as bzrlib.global_state, but we desired to move
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currently always exposed as brzlib.global_state, but we desired to move
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to a point where no global state is needed at all.
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:ivar saved_state: The bzrlib.global_state at the time __enter__ was
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:ivar saved_state: The brzlib.global_state at the time __enter__ was
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:ivar cleanups: An ObjectWithCleanups which can be used for cleanups that
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should occur when the use of bzrlib is completed. This is initialised
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should occur when the use of brzlib is completed. This is initialised
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in __enter__ and executed in __exit__.
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def __init__(self, ui, trace):
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"""Create library start for normal use of bzrlib.
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"""Create library start for normal use of brzlib.
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Most applications that embed bzrlib, including bzr itself, should just
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call bzrlib.initialize(), but it is possible to use the state class
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Most applications that embed brzlib, including bzr itself, should just
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call brzlib.initialize(), but it is possible to use the state class
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directly. The initialize() function provides sensible defaults for a
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CLI program, such as a text UI factory.
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global variables in use by bzr are set, and they are cleared on
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:param ui: A bzrlib.ui.ui_factory to use.
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:param trace: A bzrlib.trace.Config context manager to use, perhaps
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bzrlib.trace.DefaultConfig.
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:param ui: A brzlib.ui.ui_factory to use.
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:param trace: A brzlib.trace.Config context manager to use, perhaps
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brzlib.trace.DefaultConfig.
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self._trace = trace
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# TestRunBzrSubprocess may fail.
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self.cleanups = cleanup.ObjectWithCleanups()
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if bzrlib.version_info[3] == 'final':
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if brzlib.version_info[3] == 'final':
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self.cleanups.add_cleanup(
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symbol_versioning.suppress_deprecation_warnings(override=True))
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self._trace.__enter__()
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self._orig_ui = bzrlib.ui.ui_factory
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bzrlib.ui.ui_factory = self._ui
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self._orig_ui = brzlib.ui.ui_factory
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brzlib.ui.ui_factory = self._ui
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self._ui.__enter__()
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self.saved_state = bzrlib.global_state
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bzrlib.global_state = self
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self.saved_state = brzlib.global_state
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brzlib.global_state = self
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self.started = True
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def __exit__(self, exc_type, exc_val, exc_tb):
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self._ui.__exit__(None, None, None)
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self._trace.__exit__(None, None, None)
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ui.ui_factory = self._orig_ui
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bzrlib.global_state = self.saved_state
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brzlib.global_state = self.saved_state
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return False # propogate exceptions.
added
removed
brzlib/library_state.py
