jujutsu: switch to XDG config home

modules/programs/jujutsu.nix

@@ -34,16 +34,14 @@ in {
     settings = mkOption {
       type = tomlFormat.type;
       default = { };
-      example = literalExpression ''
-        {
+      example = {
         user = {
           name = "John Doe";
           email = "jdoe@example.org";
         };
-        }
-      '';
+      };
       description = ''
-        Options to add to the {file}`.jjconfig.toml` file. See
+        Options to add to the {file}`config.toml` file. See
         <https://github.com/martinvonz/jj/blob/main/docs/config.md>
         for options.
       '';
@@ -53,7 +51,7 @@ in {
   config = mkIf cfg.enable {
     home.packages = [ cfg.package ];
 
-    home.file.".jjconfig.toml" = mkIf (cfg.settings != { }) {
+    xdg.configFile."jj/config.toml" = mkIf (cfg.settings != { }) {
       source = tomlFormat.generate "jujutsu-config" (cfg.settings
         // optionalAttrs (cfg.ediff) (let
           emacsDiffScript = pkgs.writeShellScriptBin "emacs-ediff" ''

tests/modules/programs/jujutsu/empty-config.nix

@@ -6,6 +6,6 @@
   test.stubs.jujutsu = { };
 
   nmt.script = ''
-    assertPathNotExists home-files/.jjconfig.toml
+    assertPathNotExists home-files/.config/jj/config.toml
   '';
 }

tests/modules/programs/jujutsu/example-config.nix

@@ -13,9 +13,9 @@
   };
 
   nmt.script = ''
-    assertFileExists home-files/.jjconfig.toml
+    assertFileExists home-files/.config/jj/config.toml
     assertFileContent \
-      home-files/.jjconfig.toml \
+      home-files/.config/jj/config.toml \
       ${
         builtins.toFile "expected.toml" ''
           [user]