feat(nix-lib): Add genAttrs'

lib/nix-lib/default.nix

@@ -4,18 +4,17 @@
 # SPDX-License-Identifier: EUPL-1.2
 { lib }:
 
-rec {
+let
   inherit (lib)
-    flip
     optionals
     optionalString
-    hasPrefix
+    listToAttrs
+    nameValuePair
     recursiveUpdate
-    splitString
-    unique
-    warn
     ;
+in
 
+rec {
   /*
     Fuses a list of attribute sets into a single attribute set.
 
@@ -97,6 +96,11 @@ rec {
   */
   mapSingleFuse = f: mapFuse (x: singleAttr x (f x));
 
+  # Like genAttrs but allows configuring the name
+  genAttrs' =
+    names: f: g:
+    listToAttrs (map (n: nameValuePair (f n) (g n)) names);
+
   /*
     Creates a relative path as a string