{ config, lib, pkgs, ... }: with import <stockholm/lib>; let cfg = config.krebs.nixpkgs; out = { options.krebs.nixpkgs = api; config = lib.mkIf cfg.enable imp; }; api = { enable = mkEnableOption "krebs.nixpkgs" // { default = true; }; allowUnfreePredicate = mkOption { description = '' This option is similar to `nixpkgs.config.allowUnfreePredicate' but can be defined in several modules. An unfree package will be allowed if any of the defined predicates returns true. ''; type = types.nullOr (mkOptionType { name = "Predicate"; check = isFunction; merge = _locs: defs: pkg: let evalPredicateDef = def: let allow = def.value pkg; in if cfg.verbose && allow then trace "unfree ‘${pkg.name}’ allowed in ${def.file}" allow else allow; in any evalPredicateDef defs; }); default = null; }; verbose = mkOption { type = types.bool; default = false; }; }; imp = lib.mkIf (cfg.allowUnfreePredicate != null) { nixpkgs.config.allowUnfreePredicate = cfg.allowUnfreePredicate; }; in out