build-version

 1#!/bin/sh
 2# SPDX-License-Identifier: GPL-2.0-only
 3
 4prev_ver=$(cat .version 2>/dev/null) &&
 5ver=$(expr ${prev_ver} + 1 2>/dev/null) ||
 6ver=1
 7
 8echo ${ver} > .version
 9
10echo ${ver}