#!/bin/bash
set -e
set -x

source $(dirname $0)/version
cd $(dirname $0)/..

ARTIFACTS=$(pwd)/dist/artifacts
CD=${BUILD}/cd
ISO=${ARTIFACTS}/$(echo ${DISTRIB_ID} | tr '[:upper:]' '[:lower:]').iso
CHECKSUM=iso-checksums.txt

mkdir -p ${CD}/boot/isolinux
mkdir -p ${CD}/rancheros

if [ ! -f ${ARTIFACTS}/vmlinuz-${KERNEL_VERSION} ] || [ ! -f ${ARTIFACTS}/initrd ]; then
    exit 0
fi

cp ${ARTIFACTS}/initrd                        ${CD}/boot
cp ${ARTIFACTS}/vmlinuz-${KERNEL_VERSION}     ${CD}/boot
cat scripts/isolinux.cfg | envsubst >         ${CD}/boot/isolinux/isolinux.cfg
cp /usr/lib/ISOLINUX/isolinux.bin             ${CD}/boot/isolinux
cp /usr/lib/syslinux/modules/bios/ldlinux.c32 ${CD}/boot/isolinux
# add the installer image to the iso for non-network / dev/test
cp ${ARTIFACTS}/installer.tar                 ${CD}/rancheros
cp assets/bootinfoscript                ${CD}/rancheros
gzip ${CD}/rancheros/installer.tar
cd ${CD} && xorriso \
    -as mkisofs \
    -l -J -R -V "${DISTRIB_ID}" \
    -no-emul-boot -boot-load-size 4 -boot-info-table \
    -b boot/isolinux/isolinux.bin -c boot/isolinux/boot.cat \
    -isohybrid-mbr /usr/lib/ISOLINUX/isohdpfx.bin \
    -o $ISO ${CD}

cd $(dirname $ISO)
rm -f $CHECKSUM
for algo in sha256 md5; do
    echo "$algo: $(${algo}sum $(basename $ISO))" >> $CHECKSUM
done