#!/bin/sh

tmp=$PWD/tmp
aports=$PWD/../aports
target=alpine-test.iso

initramfs=test.gz
modloop=modloop.cmg

unapk() {
	local dest="$1"
	shift
	while [ $# -gt 0 ]; do
		tar -C "$dest" -zxf "$1"
		shift
	done
	rm -f "$dest/.PKGINFO"
}

link_or_copy() {
	ln -f "$1" "$2" 2>/dev/null || cp "$1" "$2"
}


rm -r $tmp
mkdir -p $tmp/apks $tmp/isolinux
cp /usr/share/syslinux/isolinux.* $tmp/isolinux
cat >$tmp/isolinux/isolinux.cfg <<EOF
timeout 20
prompt 1
default test

label test
	kernel /boot/vmlinuz
	append initrd=/boot/test.gz alpine_dev=cdrom quiet
EOF


#cp $aports/core/*/*.apk $tmp/apks

unapk $tmp $aports/core/linux-grsec/linux-grsec-[0-9]*.apk

# only build initram if its missing or script is newer than target
if [ ! -f "$initramfs" ] || [ mkinitram -nt "$initramfs" ]; then
	sh mkinitram
fi

if [ ! -f "$modloop" ] || [ mkmodloop -nt "$modloop" ]; then
	sh mkmodloop
fi

mkdir -p $tmp/boot/
link_or_copy test.gz $tmp/boot/ 
link_or_copy modloop.cmg $tmp/boot/

echo "==> Creating ISO image"
genisoimage -o $target -l -J -R \
	-b isolinux/isolinux.bin \
	-c isolinux/boot.cat	\
	-no-emul-boot		\
	-boot-load-size 4	\
	-boot-info-table	\
	-quiet			\
	$tmp