xref: /dragonfly/usr.bin/locate/locate/concatdb.sh (revision 9348a738)
1#!/bin/sh
2#
3# Copyright (c) September 1995 Wolfram Schneider <wosch@FreeBSD.org>. Berlin.
4# All rights reserved.
5#
6# Redistribution and use in source and binary forms, with or without
7# modification, are permitted provided that the following conditions
8# are met:
9# 1. Redistributions of source code must retain the above copyright
10#    notice, this list of conditions and the following disclaimer.
11# 2. Redistributions in binary form must reproduce the above copyright
12#    notice, this list of conditions and the following disclaimer in the
13#    documentation and/or other materials provided with the distribution.
14#
15# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25# SUCH DAMAGE.
26#
27# concatdb - concatenate locate databases
28#
29# usage: concatdb database1 ... databaseN > newdb
30#
31# Sequence of databases is important.
32#
33# $FreeBSD: src/usr.bin/locate/locate/concatdb.sh,v 1.10 2000/01/12 08:01:00 kris Exp $
34# $DragonFly: src/usr.bin/locate/locate/concatdb.sh,v 1.2 2003/06/17 04:29:28 dillon Exp $
35
36# The directory containing locate subprograms
37: ${LIBEXECDIR:=/usr/libexec}; export LIBEXECDIR
38
39PATH=$LIBEXECDIR:/bin:/usr/bin:$PATH; export PATH
40
41umask 077			# protect temp files
42
43: ${TMPDIR:=/var/tmp}; export TMPDIR;
44test -d "$TMPDIR" || TMPDIR=/var/tmp
45
46# utilities to built locate database
47: ${bigram:=locate.bigram}
48: ${code:=locate.code}
49: ${sort:=sort}
50: ${locate:=locate}
51
52
53case $# in
54        [01]) 	echo 'usage: concatdb databases1 ... databaseN > newdb'
55		exit 1
56		;;
57esac
58
59
60bigrams=`mktemp ${TMPDIR=/tmp}/_bigrams.XXXXXXXXXX` || exit 1
61trap 'rm -f $bigrams' 0 1 2 3 5 10 15
62
63for db
64do
65       $locate -d $db /
66done | $bigram | $sort -nr | awk 'NR <= 128 { printf $2 }' > $bigrams
67
68for db
69do
70	$locate -d $db /
71done | $code $bigrams
72