nixos,lib: move environment generation related copy-paste to lib

1 files changed, 1 insertions, 14 deletions

diff --git a/nixos/modules/config/shells-environment.nix b/nixos/modules/config/shells-environment.nix
index bff0b2991323..533280890a70 100644
--- a/nixos/modules/config/shells-environment.nix
+++ b/nixos/modules/config/shells-environment.nix
@@ -41,20 +41,7 @@ in
         strings.  The latter is concatenated, interspersed with colon
         characters.
       '';
-      type = types.attrsOf (mkOptionType {
-        name = "a string or a list of strings";
-        merge = loc: defs:
-          let
-            defs' = filterOverrides defs;
-            res = (head defs').value;
-          in
-          if isList res then concatLists (getValues defs')
-          else if lessThan 1 (length defs') then
-            throw "The option `${showOption loc}' is defined multiple times, in ${showFiles (getFiles defs)}."
-          else if !isString res then
-            throw "The option `${showOption loc}' does not have a string value, in ${showFiles (getFiles defs)}."
-          else res;
-      });
+      type = types.attrsOf (types.loeOf types.str);
       apply = mapAttrs (n: v: if isList v then concatStringsSep ":" v else v);
     };