cliphist: support multiple systemdTargets properly

Using a space separated list of targets as a single string element in
the list doesn't work properly. Change property to support list of
targets and backwards compatibility with warning for single string.

modules/services/cliphist.nix

@@ -3,6 +3,14 @@ let cfg = config.services.cliphist;
 in {
   meta.maintainers = [ lib.hm.maintainers.janik ];
 
+  imports = [
+    (lib.mkRenamedOptionModule [ "services" "cliphist" "systemdTarget" ] [
+      "services"
+      "cliphist"
+      "systemdTargets"
+    ])
+  ];
+
   options.services.cliphist = {
     enable =
       lib.mkEnableOption "cliphist, a clipboard history “manager” for wayland";
@@ -25,16 +33,18 @@ in {
       '';
     };
 
-    systemdTarget = lib.mkOption {
-      type = lib.types.str;
-      default = "graphical-session.target";
+    systemdTargets = lib.mkOption {
+      type = with lib.types; either (listOf str) str;
+      default = [ "graphical-session.target" ];
       example = "sway-session.target";
       description = ''
-        The systemd target that will automatically start the cliphist service.
+        The systemd targets that will automatically start the cliphist service.
 
-        When setting this value to `"sway-session.target"`,
+        When setting this value to `["sway-session.target"]`,
         make sure to also enable {option}`wayland.windowManager.sway.systemd.enable`,
         otherwise the service may never be started.
+
+        Note: A single string value is deprecated, please use a list.
       '';
     };
   };
@@ -61,7 +71,7 @@ in {
         Restart = "on-failure";
       };
 
-      Install = { WantedBy = [ cfg.systemdTarget ]; };
+      Install = { WantedBy = lib.toList cfg.systemdTargets; };
     };
 
     systemd.user.services.cliphist-images = lib.mkIf cfg.allowImages {
@@ -77,7 +87,7 @@ in {
         Restart = "on-failure";
       };
 
-      Install = { WantedBy = [ cfg.systemdTarget ]; };
+      Install = { WantedBy = lib.toList cfg.systemdTargets; };
     };
   };
 }

tests/modules/services/cliphist/cliphist-multiple-session-targets.nix

@@ -0,0 +1,20 @@
+{ ... }:
+
+{
+  services.cliphist = {
+    enable = true;
+
+    systemdTargets = [ "sway-session.target" "hyprland-session.target" ];
+  };
+
+  test.stubs = {
+    cliphist = { };
+    wl-clipboard = { };
+  };
+
+  nmt.script = ''
+    assertFileExists home-files/.config/systemd/user/cliphist.service
+    assertFileExists home-files/.config/systemd/user/sway-session.target.wants/cliphist.service
+    assertFileExists home-files/.config/systemd/user/hyprland-session.target.wants/cliphist.service
+  '';
+}

tests/modules/services/cliphist/cliphist-sway-session-target.nix

@@ -1,4 +1,4 @@
-{ ... }:
+{ lib, options, ... }:
 
 {
   services.cliphist = {
@@ -13,5 +13,13 @@
 
   nmt.script = ''
     assertFileExists home-files/.config/systemd/user/cliphist.service
+    assertFileExists home-files/.config/systemd/user/sway-session.target.wants/cliphist.service
   '';
+
+  test.asserts.warnings.expected = [
+    "The option `services.cliphist.systemdTarget' defined in ${
+      lib.showFiles options.services.cliphist.systemdTarget.files
+    } has been renamed to `services.cliphist.systemdTargets'."
+  ];
+
 }

tests/modules/services/cliphist/default.nix

@@ -1,4 +1,5 @@
 {
   cliphist-sway-session-target = ./cliphist-sway-session-target.nix;
   cliphist-extra-options = ./cliphist-extra-options.nix;
+  cliphist-multiple-session-targets = ./cliphist-multiple-session-targets.nix;
 }