refactor: make gpg-restore work on macOS

home-manager/_mixins/configs/gpg-restore.fish

@@ -1,9 +1,29 @@
 function gpg-restore
     mkdir -p --mode 700 $HOME/.gnupg
     gpgconf --kill gpg-agent
-    gpg --import --batch /run/user/(id -u)/secrets/gpg_private
-    gpg --import /run/user/(id -u)/secrets/gpg_public
-    gpg --list-secret-keys
-    gpg --list-keys
-    gpg --import-ownertrust /run/user/(id -u)/secrets/gpg_ownertrust
+
+    if test (uname) = "Darwin"
+        set base_temp_dir (getconf DARWIN_USER_TEMP_DIR)/secrets.d/
+
+        if test -d $base_temp_dir
+            set temp_dir (find $base_temp_dir -type d -maxdepth 1 -exec basename {} \; | sort -n | tail -n 1)
+            set temp_dir $base_temp_dir$temp_dir
+        else
+            echo "Directory $base_temp_dir does not exist."
+            return 1
+        end
+    else
+        set temp_dir /run/user/(id -u)/secrets
+    end
+
+    if test -d $temp_dir
+        gpg --import --batch $temp_dir/gpg_private
+        gpg --import $temp_dir/gpg_public
+        gpg --list-secret-keys
+        gpg --list-keys
+        gpg --import-ownertrust $temp_dir/gpg_ownertrust
+    else
+        echo "Secrets directory $temp_dir does not exist."
+        return 1
+    end
 end