Add `finalPackage` for kakoune

[harris-chris]

Hello - I'd like to use the home-manager-built kakoune executable as an input in other derivations. My understanding is that this is not possible unless the home-manager derivation is set to expose the final output - as is the case with the home-manager emacs.nix - my source for this here: https://discourse.nixos.org/t/using-home-manager-generated-packages-as-dependencies/16952 Would it be possible to have kakoune.nix configured in the same way?

[mainrs]

Out of curiosity: What do you want to do with an exposed kakoune? :)

[harris-chris]

Sure - I'd like to create a derivation that wraps kakoune such that there's only one kakoune server per workspace, and all kakoune clients attach to that. So the dependency would have kakoune and wmctrl (to recover the workspace name) as dependencies.

[teto]

yes. PR welcome. You can copy what is done for neovim

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[harris-chris]

Hello - I am just getting onto this. I have forked & feature-branched this repo, and (without any profound insight into what I'm actually doing) altered the local copy of kakoune.nix to finish like this, similar to neovim or emacs:

      finalPackage = mkOption {
        ...
        description = ''
          The Kakoune package including any overrides and extra packages.
        '';
      };
    };
  };

  config = mkIf cfg.enable {
    home.packages = [ cfg.finalPackage ];
    xdg.configFile."kak/kakrc".source = configFile;
    programs.kakoune = {
      finalPackage = kakouneWithPlugins;
    };
  };
}

This seems to work (in that if I home-manager switch, no errors are thrown), but I'd like to test it in an example where I create a wrapper around the kakoune program, which was the original purpose: https://discourse.nixos.org/t/using-home-manager-generated-packages-as-dependencies/16952 I am not sure how I should be doing this - how can I refer to this finalPackage-d kakoune from other derivations? I guess not just as nixpkgs.kakoune? Any help appreciated.

[teto]

what about programs.kakoune.finalPackage ?

[harris-chris]

Thanks, that sounds like it should work, but where is this programs.kakoune.finalPackage available from? I guess from within my home-managerconfig, but not anywhere on the system? I've just tried setting my home.nix to look something like this:

programs = rec {
    wrapkak = pkgs.writeShellScriptBin "wrapkak"
    ''
      #! ${pkgs.bash}/bin/bash
      echo "stay calm this is a wrapper"
      exec ${kakoune.finalPackage}/bin/kak $@
    '';
    kakoune = {
      enable = true;
      plugins = with pkgs.kakounePlugins; [
        kak-fzf
        powerline-kak
        kakboard
      ];
      ... rest of the kakoune config here ...
  };

but it says it can't find kakoune.finalPackage. I'm not sure if that's because my changes to the home-manager kakoune.nix were wrong, or whether I'm just calling it from the wrong place.

[teto]

grep the code for "finalPackage" and I am sure you will find your solution ;)