David Craven <da...@craven.ch> skribis: >> On second thought, the whole idea of applying grafts on the final result >> (instead of applying grafts at each step like we do now) doesn’t fly. >> It works well for things like a profile or the system derivation, but >> breaks for less trivial things. > >> For example, if you’re building a VM image or a binary tarball, you >> really need to graft packages early on; trying to graft the VM image or >> binary tarball wouldn’t have the desired effect. > > Isn't a system derivation or a profile derivation an intermediate step > to these derivations?
Yes, you’re right. However the implementation I had come up with relied on “build continuations”, which only worked for the “top-level” derivations (those you pass to ‘build-derivations’.) > Can't there be a flag or something called #:already-grafted? #t? Yeah, we need something like that. I need to chew a bit more on this to find a nice way to achieve that. Thanks for your feedback, I feel less lonely now. :-) Ludo’.
