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Viewing changes to bzrlib/fetch.py

(mbp, #303856) Don't set a pack write cache from RepoFetcher

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bzrlib/fetch.py
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    """
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    def __init__(self, to_repository, from_repository, last_revision=None, pb=None,
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        find_ghosts=True, _write_group_acquired_callable=None):
 
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        find_ghosts=True):
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        """Create a repo fetcher.
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        :param find_ghosts: If True search the entire history for ghosts.
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        # must not mutate self._last_revision as its potentially a shared instance
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        self._last_revision = last_revision
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        self.find_ghosts = find_ghosts
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        self._write_group_acquired_callable = _write_group_acquired_callable
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        if pb is None:
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            self.pb = bzrlib.ui.ui_factory.nested_progress_bar()
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            self.nested_pb = self.pb
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            try:
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                self.to_repository.start_write_group()
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                try:
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                    if self._write_group_acquired_callable is not None:
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                        # Used by InterPackRepo.fetch to set_write_cache_size
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                        # on the new pack.
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                        self._write_group_acquired_callable()
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                    self.__fetch()
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                except:
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                    self.to_repository.abort_write_group(suppress_errors=True)