In reply to @hexa:lossy.network

  bla = mkOption {
    defaultText = ''
      Something if cond, else unset
    '';
  } // lib.optionalAttrs (cond) {
    default = "bar";
  };

Hey! I have a question regarding the module system and/or generation of docs: How do I generate docs for a particular set of modules, i.e. all options defined in the modules from myservice.nix and myprogram.nix, only? Using baseModules = [] won't work, because my modules use options from NixOS. If that's not possible I run pkgs.nixosOptionsDoc for all modules and filter afterwards. Then the question arises how do I get a list of option names defined in a given module? Is that possible? As a last resort I would have to manually couple each module with some filtering expression.

infinisil pointed me at this comment, which helps, but still requires some external source of option names, e.g. I would have to know services.maubot, and cannot start from maubot.nix, for which I don't care which option names it defines.

Hey! I have a question regarding the module system and/or generation of docs: How do I generate docs for a particular set of modules, i.e. all options defined in the modules from myservice.nix and myprogram.nix, only? Using baseModules = [] won't work, because my modules use options from NixOS. If that's not possible I run pkgs.nixosOptionsDoc for all modules and filter afterwards. Then the question arises how do I get a list of option names defined in a given module? Is that possible? As a last resort I would have to manually couple each module with some filtering expression.

infinisil pointed me at this comment, which helps, but still requires some external source of option names, e.g. I would have to know "services.maubot", and cannot start from maubot.nix, for which I don't care which option names it defines.