[Nix-dev] nixos modules: Setting attrsOf sub-options

[Nicolas Pierron]

Hi,

On Wed, Jul 1, 2015 at 12:31 AM, Rickard Nilsson
<rickard.nilsson at telia.com> wrote:
>    top = mkMerge (
>      map (a: { ${a}.opt2 = f a; }) (attrNames config.top)
>    )

This would work, only if you were not redefining top, or if you knew
the list of names ahead.

> {
>    options.top = mkOption {
>      type = with types; attrsOf (submodule ({ name, config, ... }: {
>        config.opt2 = f name;
>      };
>    };
> }

On the other hand, this is the proper way to extend submodules.
Note that `opt1` can be accessed with `config.opt1` within each submodule.

-- 
Nicolas Pierron
http://www.linkedin.com/in/nicolasbpierron - http://nbp.name/