Use reference instead of primitive

src/library/title.cr

@@ -115,7 +115,7 @@ class Title
     previous_entries_size = @entries.size
     @entries.select! do |entry|
       existence = File.exists? entry.zip_path
-      yield_process_file context
+      context["file_counter"].count_and_yield
       context["deleted_entry_ids"] << entry.id unless existence
       existence
     end