1#!/bin/sh 2# 3# SPDX-License-Identifier: BSD-2-Clause-FreeBSD 4# 5# Copyright (c) September 1995-2022 Wolfram Schneider <wosch@FreeBSD.org> 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# $FreeBSD$ 34 35# stop on first error 36set -e 37set -o pipefail 38 39# The directory containing locate subprograms 40: ${LIBEXECDIR:=/usr/libexec}; export LIBEXECDIR 41: ${TMPDIR:=/var/tmp}; export TMPDIR 42 43PATH=$LIBEXECDIR:/bin:/usr/bin:$PATH; export PATH 44 45# utilities to built locate database 46: ${bigram:=locate.bigram} 47: ${code:=locate.code} 48: ${locate:=locate} 49: ${sort:=sort} 50 51sort_opt="-u -T $TMPDIR -S 20%" 52 53bigrams=$(mktemp -t mklocatedb.bigrams) 54filelist=$(mktemp -t mklocatedb.filelist) 55 56trap 'rm -f $bigrams $filelist' 0 1 2 3 5 10 15 57 58# Input already sorted 59if [ X"$1" = "X-presort" ]; then 60 shift; 61 62 # Locate database bootstrapping 63 # 1. first build a temp database without bigram compression 64 # 2. create the bigram from the temp database 65 # 3. create the real locate database with bigram compression. 66 # 67 # This scheme avoid large temporary files in /tmp 68 69 $code $bigrams > $filelist 70 $locate -d $filelist / | $bigram | $sort -nr | \ 71 awk 'NR <= 128 && /^[ \t]*[1-9][0-9]*[ \t]+..$/ { printf("%s", substr($0, length($0)-1, 2)) }' > $bigrams 72 $locate -d $filelist / | $code $bigrams 73else 74 $sort $sort_opt > $filelist 75 $bigram < $filelist | $sort -nr | \ 76 awk 'NR <= 128 && /^[ \t]*[1-9][0-9]*[ \t]+..$/ { printf("%s", substr($0, length($0)-1, 2)) }' > $bigrams 77 $code $bigrams < $filelist 78fi 79 80#EOF 81