#!/bin/sh

print_size()
{
	SIZE=$1
	OUT_SIZE=$SIZE
#	if [ $SIZE -gt 1500000 ]; then
#		OUT_SIZE=`expr $SIZE / 1024 / 1024`Mb
 if [ $SIZE -gt 10000 ]; then
		OUT_SIZE=`expr $SIZE / 1024`Kb
	fi
#	fi
	echo $OUT_SIZE;
}

PKG=$1

if [ -z "$PKG" ]; then
	echo pack
	exit 1
fi

PKGS=`emerge -p $PKG | grep '^\[' | sed 's/^................//' | sed 's/ \[.*$//'`
TOTAL_SIZE=0
TOTAL_SIZE_DOWNLOAD=0
for P in $PKGS; do
	GROUP=`echo $P | sed 's/\/.*$//'`
	CP=`echo $P | sed 's/^.*\///'`
	PK=`echo $CP | sed 's/-[0-9].*$//'`
	echo "$GROUP/$CP"
	if [ -e /usr/portage/$GROUP/$PK/$CP.ebuild ]; then
		DIGEST="/usr/portage/$GROUP/$PK/files/digest-$CP"
		if [ -e $DIGEST ]; then
			FILES=`cat $DIGEST | awk '{print $4_"|"_$3}'`
			PKG_SIZE=0
			PKG_SIZE_DOWNLOAD=0
			for F in $FILES; do
				FILE=`echo $F | sed 's/^.*|//'`
				SIZE=`echo $F | sed 's/|.*$//'`
				OUT_SIZE=`print_size $SIZE`
				OUT_EX=''
				if [ ! -e /usr/portage/distfiles/$FILE ]; then
					PKG_SIZE_DOWNLOAD=`expr $PKG_SIZE_DOWNLOAD + $SIZE`
				else
					OUT_EX=' (ok)'
				fi
				echo -e "\t\t\t" $OUT_SIZE "\t" $FILE $OUT_EX
				PKG_SIZE=`expr $PKG_SIZE + $SIZE`
			done
			echo "    Pkg size: `print_size $PKG_SIZE` "   " Download: `print_size $PKG_SIZE_DOWNLOAD`"
			TOTAL_SIZE=`expr $TOTAL_SIZE + $PKG_SIZE`
			TOTAL_SIZE_DOWNLOAD=`expr $TOTAL_SIZE_DOWNLOAD + $PKG_SIZE_DOWNLOAD`
		else
			echo digest- Not found
		fi
	else
		echo .ebuild Not found
	fi
done

echo Total Size: `print_size $TOTAL_SIZE` "    " Download: `print_size $TOTAL_SIZE_DOWNLOAD`