#!/bin/sh
# vim: set sw=4 ts=4 sts=4 et :

list_vms() {
    if [ $# -gt 0 ]; then
        echo "$@" | xargs -n1
    else
        virsh list --name
    fi
}

src=$1
shift 2>&-
dest=$1
shift 2>&-

if [ -z "${src}" ] || [ -z "${dest}" ]; then
    printf 'usage: %s source_uri dest_uri [name [...]]\n' "${0##*/}"
    exit 2
fi

export LIBVIRT_DEFAULT_URI="${src}"

list_vms "$@" | while read name; do
    [ -n "${name}" ] || continue
    printf 'Migrating %s ...\n' "${name}"
    virsh migrate "${name}" "${dest}" --live --persistent --undefinesource --verbose
done