#!/bin/bash
ALLPACKAGESFILE=$(tempfile)
ONLYPACKAGESNAMEFILE=$(tempfile)
PACKAGESTOSEARCHFILE=$(tempfile)
PACKAGESSIZEFILE=$(tempfile)
usage(){
	echo -e "\nUsage:"
	echo -e "\t$0"
	echo -e ""
	exit 0
}
if [ $# -ne 2 ]; then
	usage
fi
lliurex-resolver -i $1 -o $ALLPACKAGESFILE 1>/dev/null
cat $ALLPACKAGESFILE | cut -f 1 | sort -u > $ONLYPACKAGESNAMEFILE
comm -1 $2 $ONLYPACKAGESNAMEFILE | sed -e '/^[ \t]\+/d' > $PACKAGESTOSEARCHFILE
while read line; do
	LANG=C apt-cache show $line | grep "Installed-Size:" >> $PACKAGESSIZEFILE
done < $PACKAGESTOSEARCHFILE
:> /tmp/.asumar
cat $PACKAGESSIZEFILE | awk '{ print $2 }' > /tmp/.asumar
python -c "f=open('/tmp/.asumar');a = sum(float(l) for l in f.readlines()); print(str(a/1024) + ' M')"
rm $ALLPACKAGESFILE $ONLYPACKAGESNAMEFILE $PACKAGESTOSEARCHFILE $PACKAGESSIZEFILE /tmp/.asumar