[MERGE] revert deletes files when it is safe

[Martin Pool]

On  9 Oct 2006, Martin Pool <mbp at sourcefrog.net> wrote:
> > I'm not entirely comfortable with this kind of simulation, but I wasn't
> > trying to block it.  I think we should get Martin to write a sequel for
> > distcc: distunittest.
> 
> :-) 
> 
> Well, we should have a situation now where the test are all independent
> of each other, which is a good foundation.  So we could, at least, run
> multiple threads locally, which might help substantially for things
> blocked on file IO.  Parallelizing them is an almost necessary first
> step for useful distribution.

... of course while they're logically independent, many of them have
side effects such as modifying global variables or changing directory,
so we can't just run them in threads.  But we could perhaps fork them
off, and then report back through subunit-style output.

-- 
Martin