plymouth: use mkTarget (#1631)

Link: https://github.com/nix-community/stylix/pull/1631

Reviewed-by: 1444 <54070204+0x5a4@users.noreply.github.com>
Reviewed-by: NAHO <90870942+trueNAHO@users.noreply.github.com>

modules/plymouth/nixos.nix

@@ -1,46 +1,14 @@
 {
-  config,
+  mkTarget,
   pkgs,
   lib,
   ...
-}@args:
-
-let
-  cfg = config.stylix.targets.plymouth;
-
-  themeScript = import ./theme-script.nix args;
-
-  theme = pkgs.runCommand "stylix-plymouth" { } ''
-    themeDir="$out/share/plymouth/themes/stylix"
-    mkdir -p $themeDir
-
-    ${lib.getExe' pkgs.imagemagick "convert"} \
-      -background transparent \
-      -bordercolor transparent \
-      ${
-        # A transparent border ensures the image is not clipped when rotated
-        lib.optionalString cfg.logoAnimated "-border 42%"
-      } \
-      ${cfg.logo} \
-      $themeDir/logo.png
-
-    cp ${themeScript} $themeDir/stylix.script
-
-    echo "
-    [Plymouth Theme]
-    Name=Stylix
-    ModuleName=script
-
-    [script]
-    ImageDir=$themeDir
-    ScriptFile=$themeDir/stylix.script
-    " > $themeDir/stylix.plymouth
-  '';
-in
-{
-  options.stylix.targets.plymouth = {
-    enable = config.lib.stylix.mkEnableTarget "the Plymouth boot screen" true;
+}:
+mkTarget {
+  name = "plymouth";
+  humanName = "the Plymouth boot screen";
 
+  extraOptions = {
     logo = lib.mkOption {
       description = "Logo to be used on the boot screen.";
       type = with lib.types; either path package;
@@ -67,8 +35,42 @@ in
     )
   ];
 
-  config.boot.plymouth = lib.mkIf cfg.enable {
-    theme = "stylix";
-    themePackages = [ theme ];
-  };
+  configElements =
+    { cfg, colors }:
+    let
+      themeScript = import ./theme-script.nix { inherit lib cfg colors; };
+
+      theme = pkgs.runCommand "stylix-plymouth" { } ''
+        themeDir="$out/share/plymouth/themes/stylix"
+        mkdir -p $themeDir
+
+        ${lib.getExe' pkgs.imagemagick "convert"} \
+          -background transparent \
+          -bordercolor transparent \
+          ${
+            # A transparent border ensures the image is not clipped when rotated
+            lib.optionalString cfg.logoAnimated "-border 42%"
+          } \
+          ${cfg.logo} \
+          $themeDir/logo.png
+
+        cp ${themeScript} $themeDir/stylix.script
+
+        echo "
+        [Plymouth Theme]
+        Name=Stylix
+        ModuleName=script
+
+        [script]
+        ImageDir=$themeDir
+        ScriptFile=$themeDir/stylix.script
+        " > $themeDir/stylix.plymouth
+      '';
+    in
+    {
+      boot.plymouth = {
+        theme = "stylix";
+        themePackages = [ theme ];
+      };
+    };
 }

modules/plymouth/theme-script.nix

@@ -1,17 +1,15 @@
 {
   lib,
-  config,
-  ...
+  cfg,
+  colors,
 }:
 let
-  cfg = config.stylix.targets.plymouth;
-
   backgroundColor =
-    with config.lib.stylix.colors;
+    with colors;
     "${base00-dec-r}, ${base00-dec-g}, ${base00-dec-b}";
 
   foregroundColor =
-    with config.lib.stylix.colors;
+    with colors;
     "${base05-dec-r}, ${base05-dec-g}, ${base05-dec-b}";
 in
 builtins.toFile "stylix-plymouth-theme" ''