extras/autoindex.rb in yahns-1.4.0 vs extras/autoindex.rb in yahns-1.5.0

@@ -105,10 +105,12 @@
         end
       end
 
       if ngz_idx
         ngz_idx.each do |name, entry|
-          ngz_path = name.dup.gsub!(/\.gz\z/, '')
+          # n.b: use use dup.sub! to ensure ngz_path is nil
+          # if .gz is not found
+          ngz_path = name.dup.sub!(/\.gz\z/, '')
           ngz_idx.include?(ngz_path) or files << entry
         end
       end
 
       dirs.sort! { |(a,_),(b)| a <=> b }.map! { |(_,ent)| ent }