#!/bin/sh

mkdir -p ~/tmp/rsync-tmp || exit 1

dd if=/dev/zero of=/dev/shm/loopfile bs=1M count=126
losetup /dev/loop0 /dev/shm/loopfile
mkreiserfs -s 513 /dev/loop0
mount -t reiserfs /dev/loop0 ~/tmp/rsync-tmp -o nosuid,nodev,noatime,nolog
cd ~/tmp/rsync-tmp

export RSYNC_EXCLUDE='ChangeLog metadata.xml files/digest-* Manifest x11-* xfce-* games-* \
	gnustep-* kde-* media-* skel.* \
	media-* net-im metadata dev-dotnet app-xemacs profiles/selinux/ profiles/xbox-x86-2004.0 \
	profiles/default-* dev-ruby app-accessibility'
echo "${RSYNC_EXCLUDE}" | tr ' ' '\n' > ~/rsync_excludes

PORTDIR=~/tmp/rsync-tmp  SYNC="rsync://rsync.gentoo.org/gentoo-portage" \
	RSYNC_EXCLUDEFROM=~/rsync_excludes \
		emerge rsync

mksquashfs ~/tmp/rsync-tmp ~/tmp/portage.squashfs -noappend > /dev/null
du -hcs ~/tmp/portage.squashfs /dev/shm/loopfile ~/tmp/rsync-tmp

umount ~/tmp/rsync-tmp
rm /dev/shm/loopfile