lib/trivial: move nixpkgs module functions to utils

lib/default.nix

@@ -1,7 +1,9 @@
-# The entrypoint for our custom library set. Take note, this is modularly
-# included as part of the environment so we cannot have any functions or
-# references that could make the evaluation go in an infinite recursion such as
-# a function that generates a valid nixpkgs module.
+# The entrypoint for our custom library set.
+#
+# Take note, this is modularly included as part of the environment so we cannot
+# have any functions or references that could make the evaluation go in an
+# infinite recursion such as a function that generates a valid nixpkgs module.
+# If you have to add those functions, you'll have to add them in configUtils.
 { pkgs }:
 
 pkgs.lib.makeExtensible
@@ -13,6 +15,6 @@ pkgs.lib.makeExtensible
     trivial = callLib ./trivial.nix;
     data = callLib ./data.nix;
 
-    inherit (self.trivial) countAttrs getConfig getUser;
+    inherit (self.trivial) countAttrs;
     inherit (self.data) importYAML renderTeraTemplate;
   })

lib/trivial.nix

@@ -14,26 +14,11 @@
     lib.count (attr: pred attr.name attr.value)
       (lib.mapAttrsToList lib.nameValuePair attrs);
 
-  /* Returns the file path of the given config of the given environment.
-
-     Type: getConfig :: String -> String -> Path
+  /* Filters and groups the attribute set into two separate attribute.
 
      Example:
-       getConfig "home-manager" "foo-dogsquared"
-       => ../configs/home-manager/foo-dogsquared
+       filterAttrs' (n: v: v == 4) { a = 4; b = 2; c = 6; }
+       => { ok = { a = 4; }; reject = { b = 2; c = 6; }; }
   */
-  getConfig = type: config: ../configs/${type}/${config};
-
-
-  /* Returns the file path of the given user subpart of the given
-     environment. Only certain environments such as NixOS have this type of
-     setup.
-
-     Type: getConfig :: String -> String -> Path
-
-     Example:
-       getUser "nixos" "foo-dogsquared"
-       => ../configs/nixos/_users/foo-dogsquared
-  */
-  getUser = type: user: ../configs/${type}/_users/${user};
+  filterAttrs' = f: attrs: { };
 }

lib/utils/nixos.nix

@@ -30,4 +30,25 @@
       ];
     });
 
+  /* Returns the file path of the given config of the given environment.
+
+     Type: getConfig :: String -> String -> Path
+
+     Example:
+       getConfig "home-manager" "foo-dogsquared"
+       => ../configs/home-manager/foo-dogsquared
+  */
+  getConfig = type: config: ../../configs/${type}/${config};
+
+  /* Returns the file path of the given user subpart of the given
+     environment. Only certain environments such as NixOS have this type of
+     setup.
+
+     Type: getConfig :: String -> String -> Path
+
+     Example:
+       getUser "nixos" "foo-dogsquared"
+       => ../configs/nixos/_users/foo-dogsquared
+  */
+  getUser = type: user: ../../configs/${type}/_users/${user};
 }