xref: /freebsd/usr.bin/locate/locate/concatdb.sh (revision 780fb4a2)
1#!/bin/sh
2#
3# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4#
5# Copyright (c) September 1995 Wolfram Schneider <wosch@FreeBSD.org>. Berlin.
6# All rights reserved.
7#
8# Redistribution and use in source and binary forms, with or without
9# modification, are permitted provided that the following conditions
10# are met:
11# 1. Redistributions of source code must retain the above copyright
12#    notice, this list of conditions and the following disclaimer.
13# 2. Redistributions in binary form must reproduce the above copyright
14#    notice, this list of conditions and the following disclaimer in the
15#    documentation and/or other materials provided with the distribution.
16#
17# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27# SUCH DAMAGE.
28#
29# concatdb - concatenate locate databases
30#
31# usage: concatdb database1 ... databaseN > newdb
32#
33# Sequence of databases is important.
34#
35# $FreeBSD$
36
37# The directory containing locate subprograms
38: ${LIBEXECDIR:=/usr/libexec}; export LIBEXECDIR
39
40PATH=$LIBEXECDIR:/bin:/usr/bin:$PATH; export PATH
41
42umask 077			# protect temp files
43
44: ${TMPDIR:=/var/tmp}; export TMPDIR;
45test -d "$TMPDIR" || TMPDIR=/var/tmp
46
47# utilities to built locate database
48: ${bigram:=locate.bigram}
49: ${code:=locate.code}
50: ${sort:=sort}
51: ${locate:=locate}
52
53
54case $# in
55        [01]) 	echo 'usage: concatdb databases1 ... databaseN > newdb'
56		exit 1
57		;;
58esac
59
60
61bigrams=`mktemp ${TMPDIR=/tmp}/_bigrams.XXXXXXXXXX` || exit 1
62trap 'rm -f $bigrams' 0 1 2 3 5 10 15
63
64for db
65do
66       $locate -d $db /
67done | $bigram | $sort -nr | awk 'NR <= 128 { printf $2 }' > $bigrams
68
69for db
70do
71	$locate -d $db /
72done | $code $bigrams
73