From 1384c6cebecab944a9514682c7e158a0a73933a2 Mon Sep 17 00:00:00 2001
From: Glenn Randers-Pehrson <glennrp at users.sourceforge.net>
Date: Mon, 25 Mar 2013 10:29:47 -0500
Subject: [PATCH] [pngzop] Added "pngzop_smallest.sh" script

---
 pngzop_smallest.sh | 42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100755 pngzop_smallest.sh

diff --git a/pngzop_smallest.sh b/pngzop_smallest.sh
new file mode 100755
index 000000000..158b2e3ed
--- /dev/null
+++ b/pngzop_smallest.sh
@@ -0,0 +1,42 @@
+#!/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)
+
+# picksmallest file1 file...
+
+# for use on platforms that do not have "ls -S"
+
+smallest=$1
+smallsize=`ls -l $1 | sed -e "
+s/[^ 	]*[	 ]*\
+[^ 	]*[	 ]*\
+[^ 	]*[	 ]*\
+[^ 	]*[	 ]*\
+//" -e "s/[ 	].*//"`
+
+shift
+
+for x in $*
+do
+file=$1
+shift
+
+size=`ls -l $file | sed -e "
+s/[^ 	]*[	 ]*\
+[^ 	]*[	 ]*\
+[^ 	]*[	 ]*\
+[^ 	]*[	 ]*\
+//" -e "s/[ 	].*//"`
+
+if [ $smallsize -gt $size 	] ; then
+smallest=$file
+smallsize=$size
+fi
+done
+
+echo $smallest