First srpm built with new mock launcher + modified mock.py

[Clark Williams]

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Michael_E_Brown at Dell.com wrote:
> Recommend:
>     do_elevated()
>     do_asuser()
>
> To ensure that all calls are easy-to-audit. The elevate() and drop()
> calls should be properly bracketed with a try/finally so that exceptions
> do not interfere with dropping privs.

So essentially we won't call "do" directly from a command anymore,
we'll call do_<how> and that's where we'll elevate (or not)? Yeah, I
can go with that. And yes, a try/finally was on the agenda...

>
> Along these lines, I also thought that the mount()/umount() code would
> be best if it were pushed into the do() function.
>

I haven't looked at that, so have no opinion. I'll look at it while
I'm working on the above.

> As for the new mock, I would say patch format to the list is best for
> small changes.

I'm on the fence as to whether this is a small to change to mock.py.
Tell you what, I'll add the do_elevated and do_asuser wrappers, put
that in place and send a diff. If it's too messy I can always send the
source.

Clark

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