# https://gitlab.com/rycee/nur-expressions/-/blob/master/doc/default.nix

# https://github.com/molybdenumsoftware/pr-tracker/blob/main/filterOptions.nix

{ concatMapAttrs

, isOption

, ...

}: predicate: options:

let

inherit (builtins) isAttrs;

recurse = path: options:

concatMapAttrs

(

name: value:

let

newPath = path ++ [ name ];

in

if !(isAttrs value)

then { ${name} = value; }

else if !(isOption value)

then { ${name} = recurse newPath value; }

else if predicate newPath value

then { ${name} = value; }

else { }

)

options;

in

recurse [ ] options