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Viewing changes to bzrlib/transport/readonly.py

Remove shutil dependency in upgrade - create a delete_tree method for transports.

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Lines of Context:
bzrlib/transport/readonly.py
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        """See Transport.delete()."""
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        raise TransportNotPossible('readonly transport')
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    def delete_tree(self, relpath):
 
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        """See Transport.delete_tree()."""
 
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        raise TransportNotPossible('readonly transport')
 
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    def get(self, relpath):
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        """See Transport.get()."""
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        return self._decorated.get(relpath)
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        """See Transport.list_dir()."""
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        return self._decorated.list_dir(relpath)
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    def rmdir(self, relpath):
 
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        """See Transport.rmdir."""
 
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        raise TransportNotPossible('readonly transport')
 
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    def should_cache(self):
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        """See Transport.should_cache()."""
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        return self._decorated.should_cache()