Refine cfg.home and use it when writing files

Co-authored-by: Olli Helenius <[email protected]>

modules/programs/gradle.nix

@@ -14,7 +14,7 @@ in {
       type = types.nullOr types.path;
       default = null;
       description = ''
-        The Gradle home directory.
+        The Gradle home directory, relative to `home.homeDirectory`.
 
         If set, the GRADLE_USER_HOME environment variable will be
         set accordingly. Defaults to null which results in ~/.gradle
@@ -66,11 +66,11 @@ in {
     };
   in mkIf cfg.enable {
     home.packages = [ cfg.package ];
-    home.file.".gradle/init.d" =
+    home.file."${cfg.home}/init.d" =
       mkIf (cfg.initScripts != { }) { source = "${initScripts}/init.d"; };
     home.sessionVariables =
       mkIf (cfg.home != null) { GRADLE_USER_HOME = cfg.home; };
-    home.file.".gradle/gradle.properties" = mkIf (cfg.settings != { }) {
+    home.file."${cfg.home}/gradle.properties" = mkIf (cfg.settings != { }) {
       source = (settingsFormat.generate "gradle.properties" cfg.settings);
     };
     programs.java.enable = true;