treewide: add defaultText to remaining options

these are mostly options that use alias bindings, bindings to constants,
or bindings to calculated values.

1 files changed, 5 insertions, 1 deletions

diff --git a/nixos/modules/services/networking/amuled.nix b/nixos/modules/services/networking/amuled.nix
index 39320643dd5..e55ac7a6b18 100644
--- a/nixos/modules/services/networking/amuled.nix
+++ b/nixos/modules/services/networking/amuled.nix
@@ -1,9 +1,10 @@
-{ config, lib, pkgs, ... }:
+{ config, lib, options, pkgs, ... }:
 
 with lib;
 
 let
   cfg = config.services.amule;
+  opt = options.services.amule;
   user = if cfg.user != null then cfg.user else "amule";
 in
 
@@ -26,6 +27,9 @@ in
       dataDir = mkOption {
         type = types.str;
         default = "/home/${user}/";
+        defaultText = literalExpression ''
+          "/home/''${config.${opt.user}}/"
+        '';
         description = ''
           The directory holding configuration, incoming and temporary files.
         '';