modules/generic/meta-maintainers.nix: Introduce meta.teams

And trigger review requests for it

ci/eval/compare/maintainers.nix

@@ -14,12 +14,15 @@ let
   };
 
   nixpkgsRoot = toString ../../.. + "/";
+  stripNixpkgsRootFromKeys = lib.mapAttrs' (
+    file: value: lib.nameValuePair (lib.removePrefix nixpkgsRoot file) value
+  );
 
-  fileMaintainers =
-    # Currently just nixos module maintainers, but in the future we can use this for code owners too
-    lib.mapAttrs' (
-      file: maintainers: lib.nameValuePair (lib.removePrefix nixpkgsRoot file) maintainers
-    ) (pkgs.nixos { }).config.meta.maintainers;
+  moduleMeta = (pkgs.nixos { }).config.meta;
+
+  # Currently just nixos module maintainers, but in the future we can use this for code owners too
+  fileMaintainers = stripNixpkgsRootFromKeys moduleMeta.maintainers;
+  fileTeams = stripNixpkgsRootFromKeys moduleMeta.teams;
 
   changedpaths = lib.importJSON changedpathsjson;
 
@@ -127,7 +130,11 @@ let
       pkg:
       userPings { attr = pkg.name; } pkg.users ++ lib.concatMap (teamPings { pkg = pkg.name; }) pkg.teams
     ) attrsWithModifiedFiles
-    ++ lib.concatMap (path: userPings { file = path; } (fileMaintainers.${path} or [ ])) changedpaths;
+    ++ lib.concatMap (
+      path:
+      userPings { file = path; } (fileMaintainers.${path} or [ ])
+      ++ lib.concatMap (teamPings { file = path; }) (fileTeams.${path} or [ ])
+    ) changedpaths;
 
   byType = lib.groupBy (ping: ping.type) maintainersToPing;
 

modules/generic/meta-maintainers.nix

@@ -34,6 +34,22 @@ in
           The option value is not a list of maintainers, but an attribute set that maps module file names to lists of maintainers.
         '';
       };
+      teams = mkOption {
+        type =
+          let
+            allTeams = lib.attrValues lib.teams;
+          in
+          lib.types.addCheck sourceList (lib.all (v: lib.elem v allTeams))
+          // {
+            description = "list of lib.teams";
+          };
+        default = [ ];
+        example = lib.literalExpression "[ lib.teams.acme lib.teams.haskell ]";
+        description = ''
+          List of team maintainers of each module.
+          This option should be defined at most once per module.
+        '';
+      };
     };
   };
   meta.maintainers = with lib.maintainers; [