Merge pull request #128032 from Artturin/add-swap-options

nixos/swap: add options option

lib/types.nix

···
       merge = mergeEqualOption;
     };
 
+    nonEmptyStr = mkOptionType {
+      name = "nonEmptyStr";
+      description = "non-empty string";
+      check = x: str.check x && builtins.match "[ \t\n]*" x == null;
+      inherit (str) merge;
+    };
+
     strMatching = pattern: mkOptionType {
       name = "strMatching ${escapeNixString pattern}";
       description = "string matching the pattern ${pattern}";

nixos/modules/config/swap.nix

···
         '';
       };
 
+      options = mkOption {
+        default = [ "defaults" ];
+        example = [ "nofail" ];
+        type = types.listOf types.nonEmptyStr;
+        description = ''
+          Options used to mount the swap.
+        '';
+      };
+
       deviceName = mkOption {
         type = types.str;
         internal = true;

nixos/modules/tasks/filesystems.nix

···
         # https://wiki.archlinux.org/index.php/fstab#Filepath_spaces
         escape = string: builtins.replaceStrings [ " " "\t" ] [ "\\040" "\\011" ] string;
         swapOptions = sw: concatStringsSep "," (
-          [ "defaults" ]
+          sw.options
           ++ optional (sw.priority != null) "pri=${toString sw.priority}"
           ++ optional (sw.discardPolicy != null) "discard${optionalString (sw.discardPolicy != "both") "=${toString sw.discardPolicy}"}"
         );