syspkgdeps revision 1.10 
1#!/bin/sh
2#
3# syspkgdeps [-a arch] [-m machine] [-s setsdir] [-p prefix] sets
4#
5# Compute naive package dependencies based on file & directory
6# nesting. E.g., if pkg P contains /foo/bar and Q contains /foo,
7# then Q is considered a dependency of P.
8#
9
10#set -u
11
12prog="${0##*/}"
13rundir="$(dirname "$0")" # ${0%/*} isn't good enough when there's no "/"
14. "${rundir}/sets.subr"
15
16#
17# set defaults
18#
19prefix=/
20
21usage()
22{
23	cat 1>&2 <<USAGE
24Usage: ${0##*/} [-a arch] [-m machine] [-s setsdir] [-p prefix] setname [...]
25	-a arch		set arch (e.g, m68k, mips, powerpc)	[${MACHINE_ARCH}]
26	-m machine	set machine (e.g, amiga, i386, macppc)	[${MACHINE}]
27	-s setsdir	directory to find sets			[${setsdir}]
28	-p prefix	prefix for created plist		[${prefix}]
29	setname [...]	sets to find dependencies for
30USAGE
31	exit 1
32}
33
34# parse arguments
35while getopts a:m:p:s: ch; do
36	case ${ch} in
37	a)
38		MACHINE_ARCH="${OPTARG}"
39		MACHINE_CPU="$(arch_to_cpu "${OPTARG}")"
40		;;
41	m)
42		MACHINE="${OPTARG}"
43		;;
44	p)
45		prefix="${OPTARG}"
46		;;
47	s)
48		setsdir="${OPTARG}"
49		;;
50	*)
51		usage
52		;;
53	esac
54done
55shift $((${OPTIND} - 1))
56if [ $# -lt 1 ]; then
57	usage
58fi
59
60sets="$*"
61case "${sets}" in
62all)	sets="${nlists}" ;;
63esac
64
65# TBD clean up
66SCRATCH="$(${MKTEMP} -d "/var/tmp/${prog}.XXXXXX")"
67
68[ $? -ne 0 ] && { echo "Could not create scratch directory." 1>&2 ; exit 1 ; }
69
70PATH_MEMBERSHIP="${SCRATCH}/path-membership"
71PATH_TO_PKGNAME="${SCRATCH}/pathpkg.db"
72PARENT_PKGNAMES="${SCRATCH}/parent-pkgnames"
73PARENT_PATHNAMES="${SCRATCH}/parent-pathnames"
74
75echo "indexing packages by pathnames" 1>&2
76
77list_set_files ${sets} | ${SED} 's/^\.\///' | \
78${ENV_CMD} PREFIX="${prefix}" ${AWK} '{
79	if ($1 == ".") {
80		print ENVIRON["PREFIX"] " " $2;
81	} else {
82		print ENVIRON["PREFIX"] $1 " " $2;
83	}
84}' | ${SORT} -k 1 -u > "${PATH_MEMBERSHIP}"
85
86${DB} -q -w -f - btree "${PATH_TO_PKGNAME}" < "${PATH_MEMBERSHIP}" || \
87	echo "shit" 1>&2
88
89echo "computing parent pathnames" 1>&2
90
91while read pathname pkgname; do
92	# print parent pathname.
93	# (This uses a cheap implementation of dirname from sets.subr.)
94	dirname "${pathname}"
95done < "${PATH_MEMBERSHIP}" > "${PARENT_PATHNAMES}"
96
97echo "selecting parent packages using parent pathnames" 1>&2
98
99${DB} -q -f - btree "${PATH_TO_PKGNAME}" < "${PARENT_PATHNAMES}" | \
100	${PASTE} "${PATH_MEMBERSHIP}" - | \
101	${AWK} '{ if ($2 != $4) print $2 " " $4; }' | \
102	${SORT} -u | \
103	${HOST_SH} "${rundir}/culldeps"
104
105if [ $? -ne 0 ]; then
106	echo "error in parent-directory lookup, aborting" 1>&2
107	exit 1
108fi
109