: gnu updatedb wrapper for tw
codes_default="lib/find/codes"
dirs_default="/"
drop_default="/afs|/backup|/dev|/proc|/tmp|/usr/tmp|/var/tmp"
keep_default="/home|/usr/local|/usr/common"
COMMAND=updatedb
case `(getopts '[-][123:xyz]' opt --xyz; echo 0$opt) 2>/dev/null` in
0123) ARGV0="-a $COMMAND"
USAGE=$'
[-?
@(#)$Id: updatedb (AT&T Labs Research) 2003-11-14 $
]
'$USAGE_LICENSE$'
[+NAME?updatedb - generate locate pathname database]
[+DESCRIPTION?\bupdatedb\b generates the locate pathname database that is used
by \blocate\b(1), \bfind\b(1), and \btw\b(1). Sufficient privilege
is required to change the system locate database.]
[+?This implemenation is a script that generates a \btw\b(1) command that
does all the work.]
[a:auto-home?Include the \bnis\b(1) \aauto.home\a auto mounter home directories
in \b/home\b. NOTE: this causes the home directories to be mounted
and may swamp the mount table.]
[d:directory|localpaths?Local directories to include in the database. If the
first \adir\a is \b+\b then the default list is appended.]:
["dir1 dir2 ...":='${dirs_default}$']
[i:ignore-errors?Omit inaccessible files and directory error messages.]
[k:keep?Directories to retain in the database; used to override
\b--nocrossdevice\b. If any of the paths are symbolic links then they
are followed. If the first \adir\a is \b+\b then the default list
is appended.]:["dir1 dir2 ...":='${keep_default//\|/\ }$']
[l:local?Do not descend into non-local filesystem directories.]
[r:netpaths?Network directories to include in the database. Currently
equivalent to \b--localpaths\b.]:["dir1 dir2 ..."]
[p:prunepaths|drop?Directories to exclude from the database. If the first \adir\a
is \b+\b then the default list is appended.]:
["dir1 dir2 ...":='${drop_default//\|/\ }$']
[o:output|codes?The path of the generated database.]:[dbfile:='${codes_default}$']
[P:public?Omit files that are not publicly readable and directories that
are not publicly searchable.]
[u:user|netuser?The user id used to search directories.]:[user]
[m:dir-format?Generate a database similar to \b--gnu-format\b, except that
directories are marked for efficient implementations of \bfind\b(1)
and \btw\b(1). This is the default database format.]
[g:gnu-format?Generate a machine independent gnu \blocate\b(1) compatible
database.]
[O:old-format?Generate a database compatible with the obsolete
\bfastfind\b(1). This format has a machine dependent encoding.]
[D:depth?Limit the directory traversal depth to \alevel\a.]#[level]
[X!:crossdevice?Retain subdirectories that cross device boundaries.]
[n:show?Show the underlying the \btw\b(1) command but do not execute.]
[+FILES]{[+'${codes_default}$'?Default locate database on \b\$PATH\b.]}
[+CAVEATS?If you run \bupdatedb\b as root then protected directory
contents may be visible to everyone via the database. Use the
\b--public\b option to limit the database to publically visible
files and directories.]
[+SEE ALSO?\blocate\b(1), \bfastfind\b(1), \bfind\b(1), \bnis\b(1), \btw\b(1)]
'
;;
*) ARGV0=""
USAGE="aiglnOPXd:['dir1 dir2 ...']k:['dir1 dir2 ...']o:[dbfile]p:['dir1 dir2 ...']r:['dir1 dir2 ...']u:[user]D:[level]"
;;
esac
usage()
{
OPTIND=0
getopts $ARGV0 "$USAGE" OPT '-?'
exit 2
}
cross=1
depth=
dirs=
drop=
format="-"
keep=
options="-P"
output="-"
public=
show=
su=
while getopts $ARGV0 "$USAGE" OPT
do case $OPT in
a) dirs="$dirs `{
ypcat auto.home | sed 's,.*/,-d /home/,'
ls /home | sed 's,^,-d /home/,'
} | sort -u`"
;;
d|r) case $OPTARG in
"+"|"+ "*) ;;
*) dirs_default= ;;
esac
for dir in $OPTARG
do case $dir in
+) ;;
*) dirs="$dirs -d $dir" ;;
esac
done
;;
g) format=gnu
;;
i) options="$options -i"
;;
k) case $OPTARG in
"+"|"+ "*) ;;
*) keep_default= ;;
esac
for dir in $OPTARG
do case $dir in
+) ;;
*) case $keep in
?*) keep="$keep|$dir" ;;
*) keep="$dir" ;;
esac
;;
esac
done
;;
l) options="$options -l"
;;
m) format="-"
;;
o) output=$OPTARG
;;
n) show="print --"
;;
p) case $OPTARG in
"+"|"+ "*) ;;
*) drop_default= ;;
esac
for dir in $OPTARG
do case $dir in
+) ;;
*) case $drop in
?*) drop="$drop|$dir" ;;
*) drop="$dir" ;;
esac
;;
esac
done
;;
u) su="su $OPTARG"
;;
D) depth=$OPTARG
;;
O) format=old
;;
P) public=1
;;
X) cross=
;;
*) usage
;;
esac
done
shift $OPTIND-1
case $# in
0) ;;
*) usage ;;
esac
for dir in $dirs_default
do dirs="$dirs -d $dir"
done
for dir in $drop_default
do case $drop in
"") drop="$dir" ;;
*) drop="$drop|$dir" ;;
esac
done
for dir in $keep_default
do case $keep in
"") keep="$dir" ;;
*) keep="$keep|$dir" ;;
esac
done
skip=
follow=
alt="
"
sep="
"
case $public in
?*) case $skip in
?*) skip="$skip ||" ;;
esac
skip="${skip}${alt}!(mode & 'o+r') ||${alt}type == DIR &&${alt}!(mode & 'o+x')"
;;
esac
case $depth in
?*) case $skip in
?*) skip="$skip ||" ;;
esac
skip="${skip}${alt}level > $depth"
;;
esac
case $cross in
"") case $skip in
?*) skip="$skip ||" ;;
esac
skip="${skip}${alt}fstype != '/'.fstype"
case $keep in
?*) skip="${skip} &&${alt}path != '($keep)?(/*)'"
esac
;;
esac
case $drop in
?*) case $skip in
?*) skip="$skip ||" ;;
esac
skip="${skip}${alt}path == '($drop)?(/*)'"
;;
esac
expr=
case $skip in
?*) expr="if (${skip}${alt})${alt} status = SKIP;" ;;
esac
case $keep in
?*) case $expr in
?*) expr="${expr}${sep}else " ;;
esac
expr="${expr}if (${alt}type == LNK &&${alt}level < 3 &&${alt}path == '($keep)?(/*)'${alt})${alt} status = FOLLOW;"
;;
esac
case $expr in
?*) case $show in
"") expr="-e${sep}${expr}${sep}" ;;
*) expr="-e \"${sep}${expr}\"${sep}" ;;
esac
;;
esac
$show $su tw $options -F "$output" -G "$format" "$expr" $dirs
