#!/bin/sh
set -eu

if [ $# -lt 2 ]; then
	echo "Usage: $0 <flavor> <new-version> <old-version>" >&2
	exit 1
fi

FLAVOR=$1
NEW_VERSION=$2
OLD_VERSION=${3:-}

rc=0
if [ "$OLD_VERSION" ]; then
	if akms status -q -k "$OLD_VERSION-$FLAVOR" -s installed >/dev/null; then
		akms uninstall -k "$OLD_VERSION-$FLAVOR" all || rc=1
	fi
fi
if [ "$NEW_VERSION" ]; then
	akms install -k "$NEW_VERSION-$FLAVOR" all || rc=1
fi
exit $rc