vm-command-run.in

#!/bin/sh -efu

[ -z "@MKLOCAL@" ] ||
	export PATH="@PREFIX@/libshell:${PATH#@PREFIX@/libshell:}"

case "${VM_HELP-}" in
	USAGE)
		printf 'run <profile>\n'
		;;
	SUMMARY)
		printf 'Starts a virtual machine according to specified profile\n'
		;;
	DESCRIPTION)
		;;
	OPTIONS)
		;;
esac

[ -z "${VM_HELP-}" ] ||
	exit 0

if [ -z "${vm_profile-}" ]; then
	[ "$#" -gt 0 ] ||
		show_usage "Profile name required"

	vm_profile="$1"
	shift

	export vm_profile
fi

. shell-git-config

. "@PREFIX@/vm-sh-config"

debug_exec() {
	printf '%s \\\n' "$1"; shift
	opt=
	for a; do
		if [ -z "${a##-*}" ]; then
			[ -z "$opt" ] || printf '\\\n'
			printf '\t%s ' "$a"
			opt=1
		else
			printf '"%s" \\\n' "$a"
			opt=
		fi
	done
	printf '\t#\n'
}

vm_read_profile_config
vm_check_kernel_config

vm_profiles=
git_config_get vm_profiles "$vm_config_file" "vm.profiles"

rootfs=
git_config_get rootfs "$vm_config_file" "vm.$vm_profile.rootfs"
subst_globals rootfs "$rootfs"

dest_dir="$vm_profiles/$vm_profile"
mkdir $verbose -p -- "$dest_dir"

set --

i=0
while [ "$i" -lt "$qemu_args" ]; do
	eval "v=\"\$qemu_args_$i\""
	i=$(($i + 1))
	set -- "$@" "$v"
done

if [ -n "$qemu_logfile" ]; then
	subst_globals qemu_logfile "$qemu_logfile"
	buf="$workdir/qemu.exec.buf"
	{
		rc=0
		${vm_dryrun:+debug_exec} "$qemu_exec" "$@" ||
			rc=$?
		printf '%s\n' "$rc" > "$buf"
	} |
		tee "$qemu_logfile"
	read rc < "$buf"
	rm -f -- "$buf"
	exit $rc
fi

${vm_dryrun:+debug_exec} "$qemu_exec" "$@"