#!/bin/sh
#	$Id: clean-usr-lib.sh,v 1.8 2006/12/29 21:07:07 dm Exp $
#
# Copyright (c) 2001,2002
#	by Dirk Meyer, All rights reserved.
#	Im Grund 4, 34317 Habichtswald, Germany
#	Email: dirk.meyer@dinoex.sub.org
#
# 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. Neither the name of the author nor the names of any co-contributors
#    may be used to endorse or promote products derived from this software
#    without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
#
# -------------------------------------------------------------------------
#
#	Synopsis:
# 	clean /usr/lib after installworld
#
#	Problem:
#	after installword, you have out of date libs which causes
#	problems in buiding new applications.
#
#	My solution:
#	move old libs to comapt, so old applications keep running,
#	but new applications can only link to up-to-date libs.
#
#	Problems:
#	if a shlib reaches version 10 the old one will not be moved.
#	the date of the last installation is assumed to be the
#	date of the file "/usr/lib/crti.o"
#	if you install without touching the date this won't work.
#
#	Updates:
#	http://people.freebsd.org/~dinoex/batch/clean-usr-lib.sh
#
if test $# = 0
then
	echo >&2
	echo "Usage:  ${0##*/} [ 1 | 2 ]" >&2
	echo >&2
	sed 's/^X//' >&2 << 'EOF'
X	clean /usr/lib after installworld
X
X	1  = pass1, move shared libs to compat if a higher version exists.
X
X	2  = pass2, move all shared libs and links to compat if a date does
X	     not match installation of /usr/lib/crti.o.
X	     This pass can be dangerous ... cancel if you see libm moved.
X
EOF
	exit 64
fi
case "$1" in
1)
	echo "pass1: move shared libs to compat if a new version is there"
	for i in /usr/lib/*.so.[0-9] /lib/*.so.[0-9]
	do
		j="${i%.*}"
		wc="$(ls ${j}.*| wc -w)"
		if test "${wc}" -lt 2
		then
			continue
		fi
		old="$(ls ${j}.* | head -1)"
		echo \
		mv -i "${old}" /usr/lib/compat/
		mv -i "${old}" /usr/lib/compat/
	done
	;;
2)
	echo "pass2: move libs that are not updated"
	for i in /usr/lib/lib*
	do
		if test ! -f "${i}"
		then
			continue
		fi
		if test -L "${i}"
		then
			continue
		fi
		if test "${i}" -nt /usr/lib/crti.o
		then
			continue
		fi
		case "${i}" in
		*.so.[0-9])
			echo \
			mv -i "${i}" /usr/lib/compat/
			mv -i "${i}" /usr/lib/compat/
			continue
			;;
		*.a)
			echo \
			mv -i "${i}" /usr/lib/compat/
			mv -i "${i}" /usr/lib/compat/
			continue
			;;
		esac
		echo "# unknown: ${i}"
	done
	echo "pass2: move links that are obsolete"
	for i in /usr/lib/lib*
	do
		if test ! -L "${i}"
		then
			continue
		fi
		if test "${i}" -nt /usr/lib/crti.o
		then
			continue
		fi
		case "${i}" in
		*.so.[0-9])
			continue
			;;
		*.so)
			echo \
			mv -i "${i}" /usr/lib/compat/
			mv -i "${i}" /usr/lib/compat/
			continue
			;;
		*.a)
			echo \
			mv -i "${i}" /usr/lib/compat/
			mv -i "${i}" /usr/lib/compat/
			continue
			;;
		esac
		echo "# unknown: ${i}"
	done
esac
# update hints
ldconfig -R
#
# eof