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class AddFromBaseAction(AddAction):
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"""This class will try to extract file ids from another tree."""
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def __init__(self, base_tree, base_path, to_file=None, should_print=None):
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super(AddFromBaseAction, self).__init__(to_file=to_file,
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should_print=should_print)
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self.base_tree = base_tree
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self.base_path = base_path
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def __call__(self, inv, parent_ie, path, kind):
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# Place the parent call
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# Now check to see if we can extract an id for this file
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file_id, base_path = self._get_base_file_id(path, parent_ie)
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if file_id is not None:
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self._to_file.write('added %s w/ file id from %s\n'
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% (path.raw_path, base_path))
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# we aren't doing anything special, so let the default
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file_id = super(AddFromBaseAction, self).__call__(
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inv, parent_ie, path, kind)
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def _get_base_file_id(self, path, parent_ie):
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"""Look for a file id in the base branch.
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First, if the base tree has the parent directory,
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we look for a file with the same name in that directory.
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Else, we look for an entry in the base tree with the same path.
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if (parent_ie.file_id in self.base_tree):
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base_parent_ie = self.base_tree.inventory[parent_ie.file_id]
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base_child_ie = base_parent_ie.children.get(path.base_path)
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if base_child_ie is not None:
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return (base_child_ie.file_id,
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self.base_tree.id2path(base_child_ie.file_id))
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full_base_path = bzrlib.osutils.pathjoin(self.base_path, path.raw_path)
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# This may return None, but it is our last attempt
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return self.base_tree.path2id(full_base_path), full_base_path
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125
# TODO: jam 20050105 These could be used for compatibility
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# however, they bind against the current stdout, not the
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# one which exists at the time they are called, so they