1 files changed, 45 insertions, 7 deletions

diff --git a/nixpkgs/lib/attrsets.nix b/nixpkgs/lib/attrsets.nix
index de5968b95348..83f8d0f34186 100644
--- a/nixpkgs/lib/attrsets.nix
+++ b/nixpkgs/lib/attrsets.nix
@@ -5,7 +5,7 @@
 
 let
   inherit (builtins) head length;
-  inherit (lib.trivial) mergeAttrs warn;
+  inherit (lib.trivial) isInOldestRelease mergeAttrs warn warnIf;
   inherit (lib.strings) concatStringsSep concatMapStringsSep escapeNixIdentifier sanitizeDerivationName;
   inherit (lib.lists) foldr foldl' concatMap elemAt all partition groupBy take foldl;
 in
@@ -87,9 +87,9 @@ rec {
     Nix has a [has attribute operator `?`](https://nixos.org/manual/nix/stable/language/operators#has-attribute), which is sufficient for such queries, as long as the number of attributes is static. For example:
 
     ```nix
-    (x?a.b) == hasAttryByPath ["a" "b"] x
+    (x?a.b) == hasAttrByPath ["a" "b"] x
     # and
-    (x?${f p}."example.com") == hasAttryByPath [ (f p) "example.com" ] x
+    (x?${f p}."example.com") == hasAttrByPath [ (f p) "example.com" ] x
     ```
 
     **Laws**:
@@ -885,15 +885,15 @@ rec {
     # Type
 
     ```
-    cartesianProductOfSets :: AttrSet -> [AttrSet]
+    cartesianProduct :: AttrSet -> [AttrSet]
     ```
 
     # Examples
     :::{.example}
-    ## `lib.attrsets.cartesianProductOfSets` usage example
+    ## `lib.attrsets.cartesianProduct` usage example
 
     ```nix
-    cartesianProductOfSets { a = [ 1 2 ]; b = [ 10 20 ]; }
+    cartesianProduct { a = [ 1 2 ]; b = [ 10 20 ]; }
     => [
          { a = 1; b = 10; }
          { a = 1; b = 20; }
@@ -904,7 +904,7 @@ rec {
 
     :::
   */
-  cartesianProductOfSets =
+  cartesianProduct =
     attrsOfLists:
     foldl' (listOfAttrs: attrName:
       concatMap (attrs:
@@ -914,6 +914,40 @@ rec {
 
 
   /**
+    Return the result of function f applied to the cartesian product of attribute set value combinations.
+    Equivalent to using cartesianProduct followed by map.
+
+    # Inputs
+
+    `f`
+
+    : A function, given an attribute set, it returns a new value.
+
+    `attrsOfLists`
+
+    : Attribute set with attributes that are lists of values
+
+    # Type
+
+    ```
+    mapCartesianProduct :: (AttrSet -> a) -> AttrSet -> [a]
+    ```
+
+    # Examples
+    :::{.example}
+    ## `lib.attrsets.mapCartesianProduct` usage example
+
+    ```nix
+    mapCartesianProduct ({a, b}: "${a}-${b}") { a = [ "1" "2" ]; b = [ "3" "4" ]; }
+    => [ "1-3" "1-4" "2-3" "2-4" ]
+    ```
+
+    :::
+
+  */
+  mapCartesianProduct = f: attrsOfLists: map f (cartesianProduct attrsOfLists);
+
+  /**
     Utility function that creates a `{name, value}` pair as expected by `builtins.listToAttrs`.
 
 
@@ -1999,4 +2033,8 @@ rec {
   # DEPRECATED
   zip = warn
     "lib.zip is a deprecated alias of lib.zipAttrsWith." zipAttrsWith;
+
+  # DEPRECATED
+  cartesianProductOfSets = warnIf (isInOldestRelease 2405)
+    "lib.cartesianProductOfSets is a deprecated alias of lib.cartesianProduct." cartesianProduct;
 }