/usr.bin/locate/locate/concatdb.sh

 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# $FreeBSD$
34
35# The directory containing locate subprograms
36: ${LIBEXECDIR:=/usr/libexec}; export LIBEXECDIR
37
38PATH=$LIBEXECDIR:/bin:/usr/bin:$PATH; export PATH
39
40umask 077			# protect temp files
41
42: ${TMPDIR:=/var/tmp}; export TMPDIR;
43test -d "$TMPDIR" || TMPDIR=/var/tmp
44
45# utilities to built locate database
46: ${bigram:=locate.bigram}
47: ${code:=locate.code}
48: ${sort:=sort}
49: ${locate:=locate}
50
51
52case $# in 
53        [01]) 	echo 'usage: concatdb databases1 ... databaseN > newdb'
54		exit 1
55		;;
56esac
57
58
59bigrams=`mktemp ${TMPDIR=/tmp}/_bigrams.XXXXXXXXXX` || exit 1
60trap 'rm -f $bigrams' 0 1 2 3 5 10 15
61
62for db 
63do
64       $locate -d $db /
65done | $bigram | $sort -nr | awk 'NR <= 128 { printf $2 }' > $bigrams
66
67for db
68do
69	$locate -d $db /
70done | $code $bigrams