#!/bin/bash

cd /usr/portage

if [ -e old_distfiles ]
then
	echo "Whoa, old_distfiles exists! Abort, abort!"
	exit 1
fi

echo "Starting stage 1... (fill)"
emerge -ef world 2>/dev/null | grep -Ev ">>>|^$"
mv distfiles old_distfiles
mkdir distfiles

echo; echo "Starting stage 2... (move)"
FETCHCOMMAND="mv old_distfiles/\${FILE} \${DISTDIR}/\${FILE}" \
 emerge -ef world 2>/dev/null | grep -Ev ">>>|^$"

echo; echo "Starting stage 3... (check)"
emerge -ef world  2>/dev/null | grep -Ev ">>>|^$"

echo "In kiB:"
du -csh old_distfiles distfiles | sed '	s/\([KMGT]\)\t/ \1iB\t/
					s/old_distfiles/space saved/
					s/distfiles/new distfiles size/
					s/total/old distfiles size/'

echo; echo "We're done. Would you like to remove old_distfiles?"
read x
echo; case ${x} in
	yes|Yes|YES|y|Y)
		echo "Removing old_distfiles..."
		rm -rf old_distfiles
		;;
	*)
		echo "Not removing old_distfiles."
		echo "Please remove it manually if necessary."
		;;
esac
echo; echo "Done."