···

       
11
       
11
       
 
       
  maintainer = mkOptionType {

     

       
12
       
12
       
 
       
    name = "maintainer";

     

       
13
       
13
       
 
       
    check = email: lib.elem email (lib.attrValues lib.maintainers);

     

       
14
       
14
       
-
       
    merge =

     

       
15
       
15
       
-
       
      loc: defs:

     

       
16
       
16
       
-
       
      lib.listToAttrs (lib.singleton (lib.nameValuePair (lib.last defs).file (lib.last defs).value));

     

       
14
       
14
       
+
       
    merge = loc: defs: {

     

       
15
       
15
       
+
       
      # lib.last: Perhaps this could be merged instead, if "at most once per module"

     

       
16
       
16
       
+
       
      # is a problem (see option description).

     

       
17
       
17
       
+
       
      ${(lib.last defs).file} = (lib.last defs).value;

     

       
18
       
18
       
+
       
    };

     

       
17
       
19
       
 
       
  };

     

       
18
       
20
       
 
       


     

       
19
       
21
       
 
       
  listOfMaintainers = types.listOf maintainer // {