3 # SPDX-License-Identifier: BSD-2-Clause-FreeBSD
5 # Copyright (c) September 1995 Wolfram Schneider <wosch@FreeBSD.org>. Berlin.
8 # Redistribution and use in source and binary forms, with or without
9 # modification, are permitted provided that the following conditions
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.
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
29 # mklocatedb - build locate database
31 # usage: mklocatedb [-presort] < filelist > database
35 # The directory containing locate subprograms
36 : ${LIBEXECDIR:=/usr/libexec}; export LIBEXECDIR
38 PATH=$LIBEXECDIR:/bin:/usr/bin:$PATH; export PATH
40 umask 077 # protect temp files
42 : ${TMPDIR:=/tmp}; export TMPDIR
43 test -d "$TMPDIR" || TMPDIR=/tmp
44 if ! TMPDIR=`mktemp -d $TMPDIR/mklocateXXXXXXXXXX`; then
49 # utilities to built locate database
50 : ${bigram:=locate.bigram}
51 : ${code:=locate.code}
55 sortopt="-u -T $TMPDIR"
59 bigrams=$TMPDIR/_mklocatedb$$.bigrams
60 filelist=$TMPDIR/_mklocatedb$$.list
62 trap 'rm -f $bigrams $filelist; rmdir $TMPDIR' 0 1 2 3 5 10 15
65 # Input already sorted
66 if [ X"$1" = "X-presort" ]; then
69 # create an empty file
72 # Locate database bootstrapping
73 # 1. first build a temp database without bigram compression
74 # 2. create the bigram from the temp database
75 # 3. create the real locate database with bigram compression.
77 # This scheme avoid large temporary files in /tmp
79 $code $bigrams > $filelist || exit 1
80 locate -d $filelist / | $bigram | $sort -nr | head -128 |
81 awk '{if (/^[ ]*[0-9]+[ ]+..$/) {printf("%s",$2)} else {exit 1}}' > $bigrams || exit 1
82 locate -d $filelist / | $code $bigrams || exit 1
86 if $sortcmd $sortopt > $filelist; then
87 $bigram < $filelist | $sort -nr |
88 awk '{if (/^[ ]*[0-9]+[ ]+..$/) {printf("%s",$2)} else {exit 1}}' > $bigrams || exit 1
89 $code $bigrams < $filelist || exit 1
91 echo "`basename $0`: cannot build locate database" >&2