osi-tools/osi-run

#!/usr/bin/env bash
# 2018 Luke Shumaker
become_sudo() {
	if is_sudo; then
		return 0
	fi
	if is_root; then
		needs_sudo
	fi
	exec sudo "${BASH_SOURCE[0]}" "$@"
}

{
	set -euE
	source "${BASH_SOURCE[0]%/*}/lib/osi.sh"
	become_sudo "$@"

	arg_image="$1"
	qemu=(
		qemu-system-x86_64
		-machine accel=kvm
		-m 512
	)

	mountpoint=$(mktemp -dt -- "${0##*/}.XXXXXXXXXX")
	trap "rmdir -- ${mountpoint@Q}" EXIT

	./osi-mount "$arg_image" "$mountpoint" install -Dm755 /dev/stdin "$mountpoint/etc/osi-run"
	sudo -u "#${SUDO_UID}" -- "${qemu[@]}" -drive media=disk,format=raw,if=virtio,file="$arg_image"
	./osi-mount "$arg_image" "$mountpoint" sh -c "cat ${mountpoint@Q}/var/log/osi-run.out; exit \$(cat ${mountpoint@Q}/var/log/osi-run.status)"
}