lib/nanoc/data_sources/filesystem/tools.rb in nanoc-4.12.12 vs lib/nanoc/data_sources/filesystem/tools.rb in nanoc-4.12.13

@@ -109,12 +109,12 @@
       extra_patterns =
         case extra_files
         when nil
           []
         when String
-          ["#{dir_name}/#{extra_files}"]
+          ["#{dir_name}/#{extra_files.dup.delete_prefix('/')}"]
         when Array
-          extra_files.map { |extra_file| "#{dir_name}/#{extra_file}" }
+          extra_files.map { |extra_file| "#{dir_name}/#{extra_file.dup.delete_prefix('/')}" }
         else
           raise(
             Nanoc::Core::TrivialError,
             "Do not know how to handle extra_files: #{extra_files.inspect}",
           )