#!/bin/sh # # SPDX-License-Identifier: BSD-2-Clause-FreeBSD # # Copyright (c) September 1995 Wolfram Schneider . Berlin. # All rights reserved. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions # are met: # 1. Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # 2. Redistributions in binary form must reproduce the above copyright # notice, this list of conditions and the following disclaimer in the # documentation and/or other materials provided with the distribution. # # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE # ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF # SUCH DAMAGE. # # mklocatedb - build locate database # # usage: mklocatedb [-presort] < filelist > database # # $FreeBSD: head/usr.bin/locate/locate/mklocatedb.sh 326276 2017-11-27 15:37:16Z pfg $ # The directory containing locate subprograms : ${LIBEXECDIR:=/usr/libexec}; export LIBEXECDIR PATH=$LIBEXECDIR:/bin:/usr/bin:$PATH; export PATH umask 077 # protect temp files : ${TMPDIR:=/tmp}; export TMPDIR test -d "$TMPDIR" || TMPDIR=/tmp if ! TMPDIR=`mktemp -d $TMPDIR/mklocateXXXXXXXXXX`; then exit 1 fi # utilities to built locate database : ${bigram:=locate.bigram} : ${code:=locate.code} : ${sort:=sort} sortopt="-u -T $TMPDIR" sortcmd=$sort bigrams=$TMPDIR/_mklocatedb$$.bigrams filelist=$TMPDIR/_mklocatedb$$.list trap 'rm -f $bigrams $filelist; rmdir $TMPDIR' 0 1 2 3 5 10 15 # Input already sorted if [ X"$1" = "X-presort" ]; then shift; # create an empty file true > $bigrams # Locate database bootstrapping # 1. first build a temp database without bigram compression # 2. create the bigram from the temp database # 3. create the real locate database with bigram compression. # # This scheme avoid large temporary files in /tmp $code $bigrams > $filelist || exit 1 locate -d $filelist / | $bigram | $sort -nr | head -128 | awk '{if (/^[ ]*[0-9]+[ ]+..$/) {printf("%s",$2)} else {exit 1}}' > $bigrams || exit 1 locate -d $filelist / | $code $bigrams || exit 1 exit else if $sortcmd $sortopt > $filelist; then $bigram < $filelist | $sort -nr | awk '{if (/^[ ]*[0-9]+[ ]+..$/) {printf("%s",$2)} else {exit 1}}' > $bigrams || exit 1 $code $bigrams < $filelist || exit 1 else echo "`basename $0`: cannot build locate database" >&2 exit 1 fi fi