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""" Right context menu -> Diff """
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wt = WorkingTree.open_containing(self.path)[0]
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parent_tree = wt.branch.repository.revision_tree(wt.branch.last_revision())
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window.set_diff(wt.branch.nick, wt, parent_tree)
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window.set_file(wt.relpath(self.path + os.sep + self.selected))