+trap 'cleanup; echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR
+script_dir=$(dirname $(readlink -f "$BASH_SOURCE"))
+
+e() { echo "$*"; "$@"; }
+
+
+usage() {
+ cat <<EOF
+# Usage: ${0##*/} [OPTIONS]
+Setup fai or arch pxe (depending on $0 name)
+then start a virtual machine to test the config
+
+Note, sometimes shutting down the existing demohost vm
+fails. Just run again if that happens.
+
+-r Do not reboot.
+-n Create new qcow2(s) for vm
+-h|--help Print help and exit.
+
+Note: Uses GNU getopt options parsing style
+EOF
+ exit $1
+}
+
+
+new_disk=false
+reboot=true
+temp=$(getopt -l help hnr "$@") || usage 1
+eval set -- "$temp"
+while true; do
+ case $1 in
+ -n) new_disk=true; shift ;;
+ -r) reboot=false; shift ;;
+ -h|--help) usage ;;
+ --) shift; break ;;
+ *) echo "$0: Internal error!" ; exit 1 ;;
+ esac
+done
+
+
+# change this to test different disk counts. 1 and > 1 should be the only
+# important things to test.
+disk_count=1
+
+
+if [[ $script_dir == /a/bin/* ]]; then
+ # Copy our script elsewhere so we can develop it
+ # and save it at the same time it's running
+ rm -rf /tmp/faifreeze
+ mkdir -p /a/tmp
+ cp -ar /a/bin/fai /tmp/faifreeze
+ exec /tmp/faifreeze/${BASH_SOURCE##*/} "$@"
+fi
+
+cd $script_dir
+
+is_arch_revm() {
+ [[ ${0##*/} == arch-revm ]]
+}
+
+cleanup() { ./pxe-server; }
+if is_arch_revm; then
+ ./pxe-server demohost arch
+ sleep 2
+ # via osinfo-query os. guessing arch is closest to latest fedora.
+ variant=fedora22
+else
+ ./pxe-server demohost fai
+ sleep 2
+ # I don't think these variants actually make a diff for us, but I
+ # use the appropriate one when trying a new distro just in case.
+ variant=ubuntu14.04
+ #variant=ubuntu16.04
+ #variant=debian8
+fi
+
+name=demohost
+
+e s virshrm $name ||:
+
+
+disk_arg=()
+for ((i=1; i <= disk_count; i++)); do
+ f=/var/lib/libvirt/images/${name}$i
+ disk_arg+=("--disk path=$f")
+ if $new_disk || [[ ! -e $f ]]; then
+ s rm -f $f
+ e s qemu-img create -o preallocation=metadata -f qcow2 $f 20G
+ fi
+done