home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
PC World 2005 June
/
PCWorld_2005-06_cd.bin
/
software
/
vyzkuste
/
firewally
/
firewally.exe
/
framework-2.3.exe
/
updatedb
< prev
next >
Wrap
Text File
|
2002-05-19
|
6KB
|
216 lines
#! /bin/sh
# updatedb -- build a locate pathname database
# Copyright (C) 1994 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
# csh original by James Woods; sh conversion by David MacKenzie.
usage="\
Usage: updatedb [--localpaths='dir1 dir2...'] [--netpaths='dir1 dir2...']
[--prunepaths='dir1 dir2...'] [--prunefs='fs1 fs2...']
[--output=dbfile] [--netuser=user] [--localuser=user]
[--old-format] [--version] [--help]
Report bugs to <bug-findutils@gnu.org>.
"
old=no
for arg
do
opt=`echo $arg|sed 's/^\([^=]*\).*/\1/'`
val=`echo $arg|sed 's/^[^=]*=\(.*\)/\1/'`
case "$opt" in
--localpaths) SEARCHPATHS="$val" ;;
--netpaths) NETPATHS="$val" ;;
--prunepaths) PRUNEPATHS="$val" ;;
--prunefs) PRUNEFS="$val" ;;
--output) LOCATE_DB="$val" ;;
--netuser) NETUSER="$val" ;;
--localuser) LOCALUSER="$val" ;;
--old-format) old=yes ;;
--version) echo "GNU updatedb version 4.1.7"; exit 0 ;;
--help) echo "$usage"; exit 0 ;;
*) echo "updatedb: invalid option $opt
$usage" >&2
exit 1 ;;
esac
done
# You can set these in the environment, or use command-line options,
# to override their defaults:
# Non-network directories to put in the database.
: ${SEARCHPATHS="/"}
# Network (NFS, AFS, RFS, etc.) directories to put in the database.
: ${NETPATHS=}
# Directories to not put in the database, which would otherwise be.
: ${PRUNEPATHS="/tmp /usr/tmp /var/tmp /afs"}
# The same, in the form of a regex that find can use.
test -z "$PRUNEREGEX" &&
PRUNEREGEX=`echo $PRUNEPATHS|sed -e 's,^,\\\(^,' -e 's, ,$\\\)\\\|\\\(^,g' -e 's,$,$\\\),'`
# The database file to build.
: ${LOCATE_DB=/usr/var/locatedb}
# Directory to hold intermediate files.
if test -d /var/tmp; then
: ${TMPDIR=/var/tmp}
elif test -d /usr/tmp; then
: ${TMPDIR=/usr/tmp}
else
: ${TMPDIR=/tmp}
fi
export TMPDIR
# The user to search network directories as.
: ${NETUSER=daemon}
# The directory containing the subprograms.
: ${LIBEXECDIR=/usr/sbin}
# The directory containing find.
: ${BINDIR=/usr/bin}
# The names of the utilities to run to build the database.
: ${find=${BINDIR}/find}
: ${frcode=${LIBEXECDIR}/frcode}
: ${bigram=${LIBEXECDIR}/bigram}
: ${code=${LIBEXECDIR}/code}
PATH=/bin:/usr/bin:${BINDIR}; export PATH
: ${PRUNEFS="nfs NFS proc"}
if test -n "$PRUNEFS"; then
prunefs_exp=`echo $PRUNEFS |sed -e 's/\([^ ][^ ]*\)/-o -fstype \1/g' \
-e 's/-o //' -e 's/$/ -o/'`
else
prunefs_exp=''
fi
# Make and code the file list.
# Sort case insensitively for users' convenience.
rm -f $LOCATE_DB.n
trap 'rm -f $LOCATE_DB.n; exit' 1 15
if test $old = no; then
# FIXME figure out how to sort null-terminated strings, and use -print0.
{
if test -n "$SEARCHPATHS"; then
if [ "$LOCALUSER" != "" ]; then
su $LOCALUSER -c \
"$find $SEARCHPATHS \
\\( $prunefs_exp \
-type d -regex '$PRUNEREGEX' \\) -prune -o -print"
else
$find $SEARCHPATHS \
\( $prunefs_exp \
-type d -regex "$PRUNEREGEX" \) -prune -o -print
fi
fi
if test -n "$NETPATHS"; then
if [ "`whoami`" = root ]; then
su $NETUSER -c \
"$find $NETPATHS \\( -type d -regex '$PRUNEREGEX' -prune \\) -o -print"
else
$find $NETPATHS \( -type d -regex "$PRUNEREGEX" -prune \) -o -print
fi
fi
} | sort -f | $frcode > $LOCATE_DB.n
# To avoid breaking locate while this script is running, put the
# results in a temp file, then rename it atomically.
if test -s $LOCATE_DB.n; then
rm -f $LOCATE_DB
mv $LOCATE_DB.n $LOCATE_DB
chmod 644 $LOCATE_DB
else
echo "updatedb: new database would be empty" >&2
rm -f $LOCATE_DB.n
fi
else # old
if ! bigrams=`tempfile -p updatedb`; then
echo tempfile failed
exit 1
fi
if ! filelist=`tempfile -p updatedb`; then
echo tempfile failed
exit 1
fi
rm -f $LOCATE_DB.n
trap 'rm -f $bigrams $filelist $LOCATE_DB.n; exit' 1 15
# Alphabetize subdirectories before file entries using tr. James says:
# "to get everything in monotonic collating sequence, to avoid some
# breakage i'll have to think about."
{
if test -n "$SEARCHPATHS"; then
if [ "$LOCALUSER" != "" ]; then
su $LOCALUSER -c \
"$find $SEARCHPATHS \
\( $prunefs_exp \
-type d -regex '$PRUNEREGEX' \) -prune -o -print"
else
$find $SEARCHPATHS \
\( $prunefs_exp \
-type d -regex "$PRUNEREGEX" \) -prune -o -print
fi
fi
if test -n "$NETPATHS"; then
if [ "`whoami`" = root ]; then
su $NETUSER -c \
"$find $NETPATHS \\( -type d -regex '$PRUNEREGEX' -prune \\) -o -print"
else
$find $NETPATHS \( -type d -regex "$PRUNEREGEX" -prune \) -o -print
fi
fi
} | tr / '\001' | sort -f | tr '\001' / > $filelist
# Compute the (at most 128) most common bigrams in the file list.
$bigram < $filelist | sort | uniq -c | sort -nr |
awk '{ if (NR <= 128) print $2 }' | tr -d '\012' > $bigrams
# Code the file list.
$code $bigrams < $filelist > $LOCATE_DB.n
rm -f $bigrams $filelist
# To reduce the chances of breaking locate while this script is running,
# put the results in a temp file, then rename it atomically.
if test -s $LOCATE_DB.n; then
rm -f $LOCATE_DB
mv $LOCATE_DB.n $LOCATE_DB
chmod 644 $LOCATE_DB
else
echo "updatedb: new database would be empty" >&2
rm -f $LOCATE_DB.n
fi
fi
exit 0