updatedb.sh revision 294779 
1#!/bin/sh
2#
3# Copyright (c) September 1995 Wolfram Schneider <wosch@FreeBSD.org>. Berlin.
4# All rights reserved.
5#
6# Redistribution and use in source and binary forms, with or without
7# modification, are permitted provided that the following conditions
8# are met:
9# 1. Redistributions of source code must retain the above copyright
10#    notice, this list of conditions and the following disclaimer.
11# 2. Redistributions in binary form must reproduce the above copyright
12#    notice, this list of conditions and the following disclaimer in the
13#    documentation and/or other materials provided with the distribution.
14#
15# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25# SUCH DAMAGE.
26#
27# updatedb - update locate database for local mounted filesystems
28#
29# $FreeBSD: stable/10/usr.bin/locate/locate/updatedb.sh 294779 2016-01-26 08:44:01Z des $
30
31if [ "$(id -u)" = "0" ]; then
32	echo ">>> WARNING" 1>&2
33	echo ">>> Executing updatedb as root.  This WILL reveal all filenames" 1>&2
34	echo ">>> on your machine to all login users, which is a security risk." 1>&2
35fi
36: ${LOCATE_CONFIG="/etc/locate.rc"}
37if [ -f "$LOCATE_CONFIG" -a -r "$LOCATE_CONFIG" ]; then
38       . $LOCATE_CONFIG
39fi
40
41# The directory containing locate subprograms
42: ${LIBEXECDIR:=/usr/libexec}; export LIBEXECDIR
43: ${TMPDIR:=/tmp}; export TMPDIR
44if ! TMPDIR=`mktemp -d $TMPDIR/locateXXXXXXXXXX`; then
45	exit 1
46fi
47
48PATH=$LIBEXECDIR:/bin:/usr/bin:$PATH; export PATH
49
50
51: ${mklocatedb:=locate.mklocatedb}	 # make locate database program
52: ${FCODES:=/var/db/locate.database}	 # the database
53: ${SEARCHPATHS="/"}		# directories to be put in the database
54: ${PRUNEPATHS="/tmp /usr/tmp /var/tmp /var/db/portsnap /var/db/freebsd-update"} # unwanted directories
55: ${PRUNEDIRS=".zfs"}	# unwanted directories, in any parent
56: ${FILESYSTEMS="$(lsvfs | tail -n +3 | \
57	egrep -vw "loopback|network|synthetic|read-only|0" | \
58	cut -d " " -f1)"}		# allowed filesystems
59: ${find:=find}
60
61if [ -z "$SEARCHPATHS" ]; then
62	echo "$0: empty variable SEARCHPATHS" >&2; exit 1
63fi
64if [ -z "$FILESYSTEMS" ]; then
65	echo "$0: empty variable FILESYSTEMS" >&2; exit 1
66fi
67
68# Make a list a paths to exclude in the locate run
69excludes="! (" or=""
70for fstype in $FILESYSTEMS
71do
72       excludes="$excludes $or -fstype $fstype"
73       or="-or"
74done
75excludes="$excludes ) -prune"
76
77if [ -n "$PRUNEPATHS" ]; then
78	for path in $PRUNEPATHS; do 
79		excludes="$excludes -or -path $path -prune"
80	done
81fi
82
83if [ -n "$PRUNEDIRS" ]; then
84	for dir in $PRUNEDIRS; do
85		excludes="$excludes -or -name $dir -type d -prune"
86	done
87fi
88
89tmp=$TMPDIR/_updatedb$$
90trap 'rm -f $tmp; rmdir $TMPDIR' 0 1 2 3 5 10 15
91		
92# search locally
93if $find -s $SEARCHPATHS $excludes -or -print 2>/dev/null |
94        $mklocatedb -presort > $tmp
95then
96	if [ -n "$($find $tmp -size -257c -print)" ]; then
97		echo "updatedb: locate database $tmp is empty" >&2
98		exit 1
99	else
100		cat $tmp > $FCODES		# should be cp?
101	fi
102fi
103