[Nix-dev] Re: Removing nulls in BuildInputs

[Ludovic Courtès]

Hello,

roconnor at theorem.ca writes:

> There was an idea tossed around on #nixos a few days ago that
> mkDerivation should remove the nulls from buildInputs (and maybe other
> items too). This would help make more consistent hashes that now
> currently change when we do refactoring that removes an item from the
> build input vs setting it to null.

Yes, but OTOH, I think it’s a sign of sloppiness when you end up with
nulls in ‘buildInputs’.

IOW, the ‘buildInputs’ list should be built up carefully so that it
contains exactly what’s needed.

Thanks,
Ludo’.