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#!/bin/bash
tmp=$(mktemp -d)
pushd "$tmp"

iso=$HOME/Downloads/photon-1.0-13c08b6.iso
if [ ! -f $iso ]; then
  echo "downloading photon os iso"
  curl -o $iso -L'#' https://bintray.com/artifact/download/vmware/photon/photon-1.0-13c08b6.iso
fi

echo "fixing disk"
dd if=/dev/zero bs=2k count=1 of=tmp.iso
dd if=$iso bs=2k skip=1 >> tmp.iso

echo "mounting disk"
diskinfo=$(hdiutil attach tmp.iso)
disk=$(echo "$diskinfo" |  cut -d' ' -f1)
mnt=$(echo "$diskinfo" | perl -ne '/(\/Volumes.*)/ and print $1')
echo "mounted as $disk at $mnt"

echo "extracting kernel"
ls -l "$mnt/isolinux"
cp "$mnt/isolinux/vmlinuz" .
cp "$mnt/isolinux/initrd.img" .
diskutil eject "$disk"

echo "creating 4GB hdd"
dd if=/dev/zero of=hdd.img bs=1g count=4

KERNEL="vmlinuz"
INITRD="initrd.img"
CMDLINE="earlyprintk=serial console=ttyS0 loglevel=3"

MEM="-m 1G"
#SMP="-c 2"
NET="-s 2:0,virtio-net"
IMG_CD="-s 3,ahci-cd,$iso"
IMG_HDD="-s 4,virtio-blk,hdd.img"
PCI_DEV="-s 0:0,hostbridge -s 31,lpc"
LPC_DEV="-l com1,stdio"
ACPI="-A"

# shellcheck disable=SC2086
sudo xhyve $ACPI $MEM $SMP $PCI_DEV $LPC_DEV $NET $IMG_CD $IMG_HDD -f kexec,$KERNEL,$INITRD,"$CMDLINE"

popd
rm -rf "$tmp"