makesums revision 1.7.2.2 
1#!/bin/sh
2#
3# $NetBSD: makesums,v 1.7.2.2 2005/12/15 20:12:54 tron Exp $
4#
5# Make checksum files for files in ``tardir''.  Usage:
6# makesums [-a] [-t tardir] [setname [...]]
7#
8# If -t is omitted, RELEASEDIR must be set and not empty.
9# The ``setname'' arguments comprise a list of files to checksum,
10# and may be omitted (in which case ``*.tgz'' is used).
11# If -a is given, then the list of sets is ignored, and ``*'' is used.
12#
13# After shell glob expansion, the list of sets is filtered to remove known
14# output file names (of the form *SUM, SHA512 and MD5), non-existent files, and
15# subdirectories. If this filtering leaves no files, then no output files are
16# produced. Otherwise the resulting list of files are checksummed and five
17# output files (BSDSUM, CKSUM, MD5, SHA512, SYSVSUM) are produced.
18#
19
20prog=${0##*/}
21
22# set defaults
23: ${CKSUM=cksum}
24targetdir=$RELEASEDIR
25dash_all=no
26
27usage()
28{
29	cat 1>&2 <<USAGE
30Usage: ${prog} [-a] [-t targetdir] [setname [...]]
31	-a		checksum all plain files instead of [setname [...]]
32	-t targetdir	\$RELEASEDIR		[$targetdir]
33	setname [...]	sets to checksum 	[*.tgz]
34USAGE
35	exit 1
36}
37
38# handle args
39while getopts at: ch; do
40	case ${ch} in
41	a)
42		dash_all=yes
43		;;
44	t)	
45		targetdir=${OPTARG}
46		;;
47	*)
48		usage
49		;;
50	esac
51done
52shift $((${OPTIND} - 1))
53
54if [ -z "$targetdir" ]; then
55	echo 1>&2 '$RELEASEDIR must be set or provided with -t'
56	exit 1
57fi
58
59cd $targetdir
60pat="$*"
61if [ $dash_all = yes ]; then
62	pat='*'
63elif [ -z "$pat" ]; then
64	pat='*.tgz'
65fi
66lists=$(find $pat -prune \( -type f -o -type l \) \! -name '*SUM' \! -name MD5 \! -name SHA512 2>/dev/null)
67if [ -n "$lists" ]; then
68	${CKSUM} -o1 $lists > BSDSUM
69	${CKSUM}     $lists > CKSUM
70	${CKSUM} -a md5  $lists > MD5
71	${CKSUM} -o2 $lists > SYSVSUM
72	${CKSUM} -a sha512  $lists > SHA512
73fi
74