NetBSD/distrib/sets/makesums

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#!/bin/sh
#
# $NetBSD: makesums,v 1.7 2004/04/20 05:37:15 lukem Exp $
#
# Make checksum files for files in ``tardir''. Usage:
# makesums [-a] [-t tardir] [setname [...]]
#
# If -t is omitted, RELEASEDIR must be set and not empty.
# The ``setname'' arguments comprise a list of files to checksum,
# and may be omitted (in which case ``*.tgz'' is used).
# If -a is given, then the list of sets is ignored, and ``*'' is used.
#
# After shell glob expansion, the list of sets is filtered to remove known
# output file names (of the form *SUM and MD5), non-existent files, and
# subdirectories. If this filtering leaves no files, then no output files are
# produced. Otherwise the resulting list of files are checksummed and four
# output files (BSDSUM, CKSUM, MD5, SYSVSUM) are produced.
#
prog=${0##*/}
# set defaults
: ${CKSUM=cksum}
targetdir=$RELEASEDIR
dash_all=no
usage()
{
cat 1>&2 <<USAGE
Usage: ${prog} [-a] [-t targetdir] [setname [...]]
-a checksum all plain files instead of [setname [...]]
-t targetdir \$RELEASEDIR [$targetdir]
setname [...] sets to checksum [*.tgz]
USAGE
exit 1
}
# handle args
while getopts at: ch; do
case ${ch} in
a)
dash_all=yes
;;
t)
targetdir=${OPTARG}
;;
*)
usage
;;
esac
done
shift $((${OPTIND} - 1))
if [ -z "$targetdir" ]; then
echo 1>&2 '$RELEASEDIR must be set or provided with -t'
exit 1
fi
cd $targetdir
pat="$*"
if [ $dash_all = yes ]; then
pat='*'
elif [ -z "$pat" ]; then
pat='*.tgz'
fi
lists=$(find $pat -prune \( -type f -o -type l \) \! -name '*SUM' \! -name MD5 2>/dev/null)
if [ -n "$lists" ]; then
${CKSUM} -o1 $lists > BSDSUM
${CKSUM} $lists > CKSUM
${CKSUM} -m $lists > MD5
${CKSUM} -o2 $lists > SYSVSUM
fi