#!/bin/bash

create_disk_img () {
    local datadir=$1
    local imgfile=$2
    local fstype=$3
    local extrasize=$4
    local imgtype=$5
    [ -z "$fstype" ] && fstype="vfat"
    [ -z "$extrasize" ] && extrasize="100G"
    [ -z "$imgtype" ] && imgtype="qcow2"
    virt-make-fs --format=$imgtype --size=+$extrasize --partition --type=$fstype "$datadir" "$imgfile"
    # set variable to pass to the RTE and then QEMU
    DATA_DISK_FORMAT="$imgtype"
}

extract_disk_img () {
    local imgfile=$1
    local datadir=$2
    local basepath=$3
    [ -z "$basepath" ] && basepath="/"
    [ "${basepath:0:1}" != "/" ] && basepath="/${basepath}"
    guestfish -a $imgfile <<EOF
run
mount /dev/sda1 /
copy-out "$basepath" "$datadir"
EOF
}