[MERGE] Support for lazy registation of commands

[Robert Collins]

On Sun, 2008-08-24 at 11:10 +0200, Lukáš Lalinský wrote:
> 
> Sorry, I have no interest in rewriting all the command handling code.
> I
> wrote this for qbzr, which means it had to work with the current
> bzrlib.command code. I just thought it would be useful for other
> plugins, so I submitted a patch using the same approach as qbzr.

You should not need to rewrite 'all the command handling code'. It
should be roughly trivial to use a subclass of _LazyObjectGetter to do
exactly what you did but without the duplication of code.

-Rob
-- 
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