NetBSD/lib/bumpversion

#!/bin/sh
#	$NetBSD: bumpversion,v 1.5 1997/10/09 14:36:17 lukem Exp $
#
# Copyright (c) 1993 Christopher G. Demetriou
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
# 3. All advertising materials mentioning features or use of this software
#    must display the following acknowledgement:
#      This product includes software developed by Christopher G. Demetriou.
# 4. The name of the author may not be used to endorse or promote products
#    derived from this software without specific prior written permission
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#

PATH=/bin:/usr/bin
export PATH

while :
	do case "$1" in
		# -c says to create new shlib_version files
		-c)
			create=TRUE
			shift ;;

		# -n sets 'do nothing mode'
		-n)
			donothing=TRUE
			shift ;;

		# -m says to bump major number, rather than minor number
		-m)
			bumpmajor=TRUE
			shift ;;

		*)
			break ;;
	esac
done

if [ $# = 0 ] ; then
	echo "usage: $0 [-c] [-m] [-n] dir ..."
	exit 2
fi

TMP=/tmp/bump$$
error=0

trap 'rm -f $TMP ; exit 1' 1 2 3 13 15

for dir in $@ ; do
	versf=$dir/shlib_version

	if [ "X$create" != "X" ] ; then
		if [ ! -d $dir ] ; then
		        echo $0: $dir is not a directory 1>&2
		        error=1
			continue
		fi
		if [ -e $versf ] ; then
		        echo $0: $versf exists\; not replacing 1>&2
		        error=1
			continue
		fi
	else
		if [ ! -e $versf ] ; then
		        echo $0: $versf does not exist 1>&2
		        error=1
			continue
		fi
		if [ ! -f $versf ] ; then
		        echo $0: $versf is not a regular file 1>&2
		        error=1
			continue
		fi
		if [ ! -r $versf ] ; then
		        echo $0: $versf is not readable 1>&2
		        error=1
			continue
		fi
		if [ ! -w $versf ] ; then
		        echo $0: $versf is not a writable 1>&2
		        error=1
			continue
		fi
	
		. $versf
	fi

	if [ "X$create" != "X" ] ; then
		nmajor=0
		nminor=0
	elif [ "X$bumpmajor" != "X" ] ; then
		nmajor=`expr $major + 1`
		nminor=0
	else
		nmajor=$major
		nminor=`expr $minor + 1`
	fi

	if [ "X$donothing" = "X" ] ; then
		echo major=$nmajor > $TMP
		echo minor=$nminor >> $TMP
		mv $TMP $versf
	else
		echo "$0: $versf -> $nmajor.$nminor"
	fi
done

exit $error