locate/locate/updatedb.sh

   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: src/usr.bin/locate/locate/updatedb.sh,v 1.20 2005/11/12 12:45:08 grog Exp $
  30
  31 if [ "$(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
  35 fi
  36 : ${LOCATE_CONFIG="/etc/locate.rc"}
  37 if [ -f "$LOCATE_CONFIG" -a -r "$LOCATE_CONFIG" ]; then
  38        . $LOCATE_CONFIG
  39 fi
  40
  41 # The directory containing locate subprograms
  42 : ${LIBEXECDIR:=/usr/libexec}; export LIBEXECDIR
  43 : ${TMPDIR:=/tmp}; export TMPDIR
  44 if ! TMPDIR=`mktemp -d $TMPDIR/locateXXXXXXXXXX`; then
  45         exit 1
  46 fi
  47
  48 PATH=$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 /var/tmp"} # unwanted directories
  55 : ${FILESYSTEMS:="hfs ufs"}                      # allowed filesystems
  56 : ${find:=find}
  57
  58 case X"$SEARCHPATHS" in
  59         X) echo "$0: empty variable SEARCHPATHS"; exit 1;; esac
  60 case X"$FILESYSTEMS" in
  61         X) echo "$0: empty variable FILESYSTEMS"; exit 1;; esac
  62
  63 # Make a list a paths to exclude in the locate run
  64 excludes="! (" or=""
  65 for fstype in $FILESYSTEMS
  66 do
  67        excludes="$excludes $or -fstype $fstype"
  68        or="-or"
  69 done
  70 excludes="$excludes ) -prune"
  71
  72 case X"$PRUNEPATHS" in
  73         X) ;;
  74         *) for path in $PRUNEPATHS
  75            do
  76                 excludes="$excludes -or -path $path -prune"
  77            done;;
  78 esac
  79
  80 tmp=$TMPDIR/_updatedb$$
  81 trap 'rm -f $tmp; rmdir $TMPDIR; exit' 0 1 2 3 5 10 15
  82
  83 # search locally
  84 # echo $find $SEARCHPATHS $excludes -or -print && exit
  85 if $find -s $SEARCHPATHS $excludes -or -print 2>/dev/null |
  86         $mklocatedb -presort > $tmp
  87 then
  88         case X"`$find $tmp -size -257c -print`" in
  89                 X) cat $tmp > $FCODES;;
  90                 *) echo "updatedb: locate database $tmp is empty"
  91                    exit 1
  92         esac
  93 fi