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