makesums revision 1.10 
1#!/bin/sh
2#
3# $NetBSD: makesums,v 1.10 2005/10/07 17:21:36 jmc 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 checksum are appended to possibly existing files.
12# NOTE: Don't use this when running parallel jobs
13# If -a is given, then the list of sets is ignored, and ``*'' is used.
14#
15# After shell glob expansion, the list of sets is filtered to remove known
16# output file names (of the form *SUM, SHA512 and MD5), non-existent files, and
17# subdirectories. If this filtering leaves no files, then no output files are
18# produced. Otherwise the resulting list of files are checksummed and five
19# output files (BSDSUM, CKSUM, MD5, SHA512, SYSVSUM) are produced.
20#
21
22prog=${0##*/}
23
24# set defaults
25: ${CKSUM=cksum}
26targetdir=$RELEASEDIR
27dash_all=no
28append=\>
29
30usage()
31{
32	cat 1>&2 <<USAGE
33Usage: ${prog} [-A] [-a] [-t targetdir] [setname [...]]
34	-A		Append to possible existing checksum files 
35	-a		checksum all plain files instead of [setname [...]]
36	-t targetdir	\$RELEASEDIR		[$targetdir]
37	setname [...]	sets to checksum 	[*.tgz]
38USAGE
39	exit 1
40}
41
42# handle args
43while getopts aAt: ch; do
44	case ${ch} in
45	A)
46		append=\>\>
47		;;
48	a)
49		dash_all=yes
50		;;
51	t)	
52		targetdir=${OPTARG}
53		;;
54	*)
55		usage
56		;;
57	esac
58done
59shift $((${OPTIND} - 1))
60
61if [ -z "$targetdir" ]; then
62	echo 1>&2 '$RELEASEDIR must be set or provided with -t'
63	exit 1
64fi
65
66cd $targetdir
67pat="$*"
68if [ $dash_all = yes ]; then
69	pat='*'
70elif [ -z "$pat" ]; then
71	pat='*.tgz'
72fi
73lists=$(find $pat -prune \( -type f -o -type l \) \! -name '*SUM' \! -name MD5 \! -name SHA512 2>/dev/null)
74if [ -n "$lists" ]; then
75	eval ${CKSUM} -o1 $lists $append BSDSUM
76	eval ${CKSUM}     $lists $append CKSUM
77	eval ${CKSUM} -a md5  $lists $append MD5
78	eval ${CKSUM} -o2 $lists $append SYSVSUM
79	eval ${CKSUM} -a sha512  $lists $append SHA512
80fi
81