fix: NameError caused by undefined secrets instance variable

To fix a bug found after upgrading a legacy application to Rails 8.
The application makes use of yabeda-rails.

Fixes: #158

Author: fbuys

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 ## master
 
+- Address NameError: instance variable @secrets not defined issue ([@fbuys][])
+
 ## 2.7.1 (2025-02-24)
 
 - Suppress required validations when running Rails credentials commands. ([@palkan][])

lib/anyway/rails/loaders/secrets.rb

@@ -28,6 +28,11 @@ def secrets
             # Reset secrets state if the app hasn't been initialized
             # See https://github.com/palkan/anyway_config/issues/14
             next if ::Rails.application.initialized?
+
+            # Address unable to load application: NameError: instance variable @secrets
+            # not defined
+            next unless ::Rails.application.instance_variable_defined?(:@secrets)
+
             ::Rails.application.remove_instance_variable(:@secrets)
           end
         end