missing checksize script

checksize

+#!/bin/sh
+if [ ! -f $2 ]; then exit 0 ; fi
+if [ ! -f $1 ]; then exit 0 ; fi
+bin=$(stat -c %s $1)
+comp=$(stat -c %s $2)
+if [ $bin -gt $comp ]; then
+    ## check margin
+    echo "Compressed file is smaller than original by a factor of $(echo $comp/$bin | bc -l)"
+    c=$(echo "$bin*99/100" | bc)
+    if [ $c -gt $comp ]; then
+        echo "Compression achieved more than 1%"
+        exit 1
+    fi
+fi
+exit 0