bug#28510: crash: guix build -S foo --with-source=bla

[Josselin Poiret]

Hi Simon,

zimoun <zimon.toutoune@gmail.com> writes:

> Well, I would add an error handler; as proposed [1]. :-)  Because does
> “guix build foo --source --with-source=bla” make sense?  What is the
> use-case for such command?

My bad, I didn't see the previous discussion on the subject.  To me, the
lack of generality would be unexpected: if I have a package with a
source, I expect to be able to get that source, whatever the source may
be.  Maxime's minimal example shows that it could happen for a variety
of different reasons, not just a --with-source= flag.  I don't know what
a proper fix for it would be though, since we're passing things around
that we pretend are derivations but are not, and in many places.

Best,
-- 
Josselin Poiret