#!/bin/sh

# For use in the pngzop project
# Copyright 2013 by Glenn Randers-Pehrson
# Released under the pngcrush license (equivalent to the libpng license)

# Selects the smaller of file.zdat (extracted from a PNG) or
# file.idat.zlib (same but recompressed with zopfli)

# picksmaller *.zdat

for file in $*
do
file1=$1
file2=`echo $file1 | sed -e "s/zdat/idat.zlib/"`
shift

ls -S $file1 $file2 | tail -1

done