[darcs-users] Crazy idea: get depends from tests

Ganesh Sittampalam ganesh at earth.li
Sun Sep 13 21:16:50 UTC 2009

On Thu, 10 Sep 2009, Florent Becker wrote:

> That's why I propose to add a --add-deps-by-tests flag to record (and 
> amend- record). When recording a patch x with that flag, darcs would try 
> to commute each patch between x and the last tag (or some other chosen 
> patch) past x, then unpull it and run tests. If the tests fail, then x 
> depends on that patch. While it would require a not-too slow testsuite, 
> that system would be a real robustness argument for darcs' 
> cherry-picking: whenever you do cherry-picking, you end up with a merge 
> of to branches which pass the tests (even though the merge itself could 
> well not pass).

I like this idea. I think there are two parts to it.

(1) Make amend-record able to add new deps. It's actually a pain that it 
can't anyway, which I discovered recently.

(2) Have a probably separate utility that can run afterwards and add the 
required deps. Obviously as with any other amend-recorded changes, this 
should be before the patch escapes into the wild.



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