#!/usr/bin/env bash
set -e

source $(dirname $0)/env.sh

cd $LUNA_ROOT

if [ "$(id -u)" -ne "0" ]
then
    export FAKEROOT_SAVE="fakeroot -u -s $LUNA_ROOT/.fakeroot -- "
    export FAKEROOT_RESTORE="fakeroot -u -i $LUNA_ROOT/.fakeroot -- "
else
    echo "Caution: you are running make-iso.sh as root. This should only be done inside a container, for example in CI."
    export FAKEROOT_SAVE=""
    export FAKEROOT_RESTORE=""
fi

${FAKEROOT_SAVE}tools/install.sh

disk_space=$(du -s base | awk '{ print $1 }')
min_blocks=$(($disk_space / 4)) # This is just the blocks needed for all the files in the file system: this excludes space for the inode table, block group descriptors, etc.
blocks=$(($min_blocks + 1024)) # This is the actual number of blocks we're using.

${FAKEROOT_RESTORE}genext2fs -d base -B 4096 -b $blocks -L luna-rootfs -N 1024 build/ext2fs.bin

mkbootimg luna.json Luna.iso