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# mklocatedb - build locate database 30# 31# usage: mklocatedb [-presort] < filelist > database 32# 33# $FreeBSD: head/usr.bin/locate/locate/mklocatedb.sh 326276 2017-11-27 15:37:16Z pfg $ 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: ${TMPDIR:=/tmp}; export TMPDIR 43test -d "$TMPDIR" || TMPDIR=/tmp 44if ! TMPDIR=`mktemp -d $TMPDIR/mklocateXXXXXXXXXX`; then 45 exit 1 46fi 47 48 49# utilities to built locate database 50: ${bigram:=locate.bigram} 51: ${code:=locate.code} 52: ${sort:=sort} 53 54 55sortopt="-u -T $TMPDIR" 56sortcmd=$sort 57 58 59bigrams=$TMPDIR/_mklocatedb$$.bigrams 60filelist=$TMPDIR/_mklocatedb$$.list 61 62trap 'rm -f $bigrams $filelist; rmdir $TMPDIR' 0 1 2 3 5 10 15 63 64 65# Input already sorted 66if [ X"$1" = "X-presort" ]; then 67 shift; 68 69 # create an empty file 70 true > $bigrams 71 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. 76 # 77 # This scheme avoid large temporary files in /tmp 78 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 83 exit 84 85else 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 90 else 91 echo "`basename $0`: cannot build locate database" >&2 92 exit 1 93 fi 94fi 95