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Viewing changes to breezy/transform.py

Merge tree reference fixes.

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breezy/transform.py
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        self._iter_changes_cache = dict((c.file_id, c) for c in
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                                        self._transform.iter_changes())
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    def supports_tree_reference(self):
 
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        # TODO(jelmer): Support tree references in _PreviewTree.
 
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        # return self._transform._tree.supports_tree_reference()
 
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        return False
 
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    def _content_change(self, file_id):
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        """Return True if the content of this file changed"""
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        changes = self._iter_changes_cache.get(file_id)
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            with self.get_file(path) as fileobj:
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                return sha_file(fileobj)
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    def get_reference_revision(self, path):
 
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        trans_id = self._path2trans_id(path)
 
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        if trans_id is None:
 
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            raise errors.NoSuchFile(path)
 
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        reference_revision = self._transform._new_reference_revision.get(trans_id)
 
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        if reference_revision is None:
 
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            return self._transform._tree.get_reference_revision(path)
 
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        return reference_revision
 
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    def is_executable(self, path):
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        trans_id = self._path2trans_id(path)
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        if trans_id is None: