From 099b6cca33cd283ca6b2aafe6ce96154f1b2300c Mon Sep 17 00:00:00 2001
From: Sergey Kazenyuk <kazenyuk@pm.me>
Date: Sat, 24 Aug 2024 21:41:26 +0300
Subject: [PATCH] btrfs: add swap priority, options

---
 lib/types/btrfs.nix | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/lib/types/btrfs.nix b/lib/types/btrfs.nix
index 5d306755..1c83b0ff 100644
--- a/lib/types/btrfs.nix
+++ b/lib/types/btrfs.nix
@@ -13,6 +13,23 @@ let
           default = name;
           description = "Path to the swap file (relative to the mountpoint)";
         };
+
+        priority = lib.mkOption {
+          type = lib.types.nullOr lib.types.int;
+          default = null;
+          description = lib.mdDoc ''
+            Specify the priority of the swap file. Priority is a value between 0 and 32767.
+            Higher numbers indicate higher priority.
+            null lets the kernel choose a priority, which will show up as a negative value.
+          '';
+        };
+
+        options = lib.mkOption {
+          type = lib.types.listOf lib.types.nonEmptyStr;
+          default = [ "defaults" ];
+          example = [ "nofail" ];
+          description = "Options used to mount the swap.";
+        };
       };
     }));
     default = { };
@@ -24,6 +41,7 @@ let
       swapDevices = builtins.map
         (file: {
           device = "${mountpoint}/${file.path}";
+          inherit (file) priority options;
         })
         (lib.attrValues swap);
     };