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Geek Gadgets 1
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ADE-1.bin
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ade-dist
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findutils-4.1-bin.lha
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bin
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updatedb
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1996-10-12
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#!/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...'] [--output=dbfile] [--netuser=user]
[--old-format] [--version] [--help]"
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" ;;
--output) LOCATE_DB="$val" ;;
--netuser) NETUSER="$val" ;;
--old-format) old=yes ;;
--version) echo "GNU updatedb version "; 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=/local/var/locatedb}
# Directory to hold intermediate files.
: ${TMPDIR=/tmp}
# The user to search network directories as.
: ${NETUSER=daemon}
# The directory containing the subprograms.
: ${LIBEXECDIR=/ade/lib/libexec}
# The directory containing find.
: ${BINDIR=/ade/bin}
# The names of the utilities to run to build the database.
: ${find=}
: ${frcode=}
: ${bigram=}
: ${code=}
PATH=$LIBEXECDIR:$BINDIR:/bin:$PATH export PATH
# Make and code the file list.
# Sort case insensitively for users' convenience.
if test $old = no; then
# FIXME figure out how to sort null-terminated strings, and use -print0.
{
if test -n "$SEARCHPATHS"; then
$find $SEARCHPATHS \
\( -fstype nfs -o -fstype NFS -o -type d -regex "$PRUNEREGEX" \) -prune -o -print
fi
if test -n "$NETPATHS"; then
su $NETUSER -c \
"$find $NETPATHS \\( -type d -regex \"$PRUNEREGEX\" -prune \\) -o -print"
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 $LOCATE_DB.n
fi
else # old
bigrams=$TMPDIR/f.bigrams$$
filelist=$TMPDIR/f.list$$
trap 'rm -f $bigrams $filelist; exit' 1 15
# Alphabetize subdirectories before file entries using tr. James says:
# "to get everything in monotonic collating sequence, to avoid some
# breakage i'll have to think about."
{
if test -n "$SEARCHPATHS"; then
$find $SEARCHPATHS \
\( -fstype nfs -o -fstype NFS -o -type d -regex "$PRUNEREGEX" \) -prune -o -print
fi
if test -n "$NETPATHS"; then
su $NETUSER -c \
"$find $NETPATHS \\( -type d -regex \"$PRUNEREGEX\" -prune \\) -o -print"
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
chmod 644 $LOCATE_DB
rm -f $bigrams $filelist $errs
fi