lib/image_optim/worker/optipng.rb in image_optim-0.20.2 vs lib/image_optim/worker/optipng.rb in image_optim-0.21.0

@@ -19,18 +19,26 @@
           '`false` - interlace off, '\
           '`nil` - as is in original image') do |v|
         TrueFalseNil.convert(v)
       end
 
+      STRIP_OPTION =
+      option(:strip, true, 'Remove all auxiliary chunks'){ |v| !!v }
+
+      def run_order
+        -4
+      end
+
       def optimize(src, dst)
         src.copy(dst)
         args = %W[
           -o #{level}
           -quiet
           --
           #{dst}
         ]
         args.unshift "-i#{interlace ? 1 : 0}" unless interlace.nil?
+        args.unshift '-strip', 'all' if strip
         execute(:optipng, *args) && optimized?(src, dst)
       end
     end
   end
 end