How do I write a Nix expression for new Lua packages?

[tomjaguarpaw]

I need to install the Lua packages

• dpnn
• csvigo
• torchx
• tds

They are available from luarocks. I have looked in pkgs/top-level/lua-packages.nix but I don't understand it because this is my first time writing Nix expressions. Can anyone give me a hand?

[Mic92]

Can you make a more concrete question, what you don't understand? Otherwise I would suggest to join #nixos on IRC to get a more interactive introduction.

[tomjaguarpaw]

I've never built a Lua package before and I've never written a Nix expression before so I'm in the worst possible place to make progress with this problem. Nonetheless I think these packages would be a good addition to the Nix ecosystem. Could someone who knows about Lua and Nix specifically help me out?

As will be able to see from the #nixos logs I have been there this afternoon but no one could help me with this specific issue.

[tomjaguarpaw]

@domenkozar Any chance you could help out with this when you get some time?

[teto]

You can have a look at https://nixos.org/nixpkgs/manual/#sec-language-lua.
The best solution would be to import luarocks available packages into nixos.

[tomberek]

Close as answered?

[tomjaguarpaw]

I am no longer trying Nix or Lua so I can't verify whether the answer works or not. AFAIR I already knew about the section of the manual that teto linked to so I imagine I tried it and it didn't work for the lua packages that I wanted.