cabal2nix in git, and other questions - Nix

You check in files generated by cabal2nix too?

cabal2nix? That's old school. Don't use it. developPackage succeeds it (it uses callCabal2nix underneath).

Sure, but where do I found out stuff like that?
The only docs I've read so far are Gabriel's and yours.

Maybe the most pressing issue right now is how the f**k do I get nix-shell to start my choice of shell? :grinning_face_with_smiling_eyes:

Ya, docs on nix mostly suck. It is one of the reasons I wanted to write that article, as a common easy starting point for Haskellers. A lot of learning, beyond that, happens by trial and error, reading other people's code, etc.

Maybe the most pressing issue right now is how the f**k do I get nix-shell to start my choice of shell? :grinning_face_with_smiling_eyes:

Try nix-shell . --command fish

Hmm, no way of avoiding having to pass the shell explicitly all the time?
No way to get nix-shell to honour $SHELL?

Not sure. I don't stay long in nix-shell to bother finding anyway. :-) Usually I do one-off runs with nix-shell --run

Typically that's either nix-shell --run ghcid or nix-shell --run 'cabal new-repl'

Yes, good point, I'll have to see what patterns emerge as I drink the Nix koolaid I guess.

I very often use nix-shell --run even to run non-Haskell programs. Like nix-shell -p tree --run 'tree -d'. I don't even bother installing the package.

You don't happen to have any pointer to any documentation on how I can control the build when using pkgs.haskellPackages.developPackage?
For instance I have no use for profiling or docs at the moment.

Use dontHaddock (similar to dontCheck for disabling unit tests). I think for profiling it is disableLibraryProfiling and disableExecutableProfiling. cf. https://github.com/srid/rib/blob/master/default.nix#L40-L45

I'm not really sure how/where to set dontHaddock though...