lib/openseadragon/engine.rb in openseadragon-0.6.0 vs lib/openseadragon/engine.rb in openseadragon-0.7.0

@@ -1,8 +1,20 @@
 module Openseadragon
   class Engine < ::Rails::Engine
     isolate_namespace Openseadragon
 
+    config.before_configuration do
+      # see https://github.com/fxn/zeitwerk#for_gem
+      # openseadragon_rails puts a generator into LOCAL APP lib/generators, so tell
+      # zeitwerk to ignore the whole directory? If we're using a recent
+      # enough version of Rails to have zeitwerk config
+      #
+      # See: https://github.com/cbeer/engine_cart/issues/117
+      if Rails.try(:autoloaders).try(:main).respond_to?(:ignore)
+        Rails.autoloaders.main.ignore(Rails.root.join('lib/generators'))
+      end
+    end
+
     initializer 'openseadragon.assets.precompile' do |app|
       app.config.assets.precompile += %w[openseadragon/*.png]
     end
   end
 end