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73 lines
2.2 KiB
Plaintext
73 lines
2.2 KiB
Plaintext
7 years ago
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#! /bin/sh
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set -e
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# cron script to update the `locatedb' database.
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#
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# Written by Ian A. Murdock <imurdock@debian.org> and
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# Kevin Dalley <kevin@aimnet.com>
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# Please consult updatedb(1) and /usr/share/doc/locate/README.Debian
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[ -e /usr/bin/updatedb.findutils ] || exit 0
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if [ "$(id -u)" != "0" ]; then
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echo "You must be root."
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exit 1
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fi
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# Global options for invocations of find(1)
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FINDOPTIONS='-ignore_readdir_race'
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# filesystems which are pruned from updatedb database
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PRUNEFS="NFS nfs nfs4 afs binfmt_misc proc smbfs autofs iso9660 ncpfs coda devpts ftpfs devfs mfs shfs sysfs cifs lustre_lite tmpfs usbfs udf ocfs2"
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# paths which are pruned from updatedb database
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PRUNEPATHS="/tmp /usr/tmp /var/tmp /afs /amd /alex /var/spool /sfs /media /var/lib/schroot/mount"
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# netpaths which are added
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NETPATHS=""
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# run find as this user
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LOCALUSER="nobody"
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# cron.daily/find: run at this priority -- higher number means lower priority
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# (this is relative to the default which cron sets, which is usually +5)
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NICE=10
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# I/O priority
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# 1 for real time, 2 for best-effort, 3 for idle ("3" only allowed for root)
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IONICE_CLASS=3
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# 0-7 (only valid for IONICE_CLASS 1 and 2), 0=highest, 7=lowest
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IONICE_PRIORITY=7
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# allow keeping local customizations in a separate file
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if [ -r /etc/updatedb.findutils.cron.local ] ; then
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. /etc/updatedb.findutils.cron.local
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fi
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export FINDOPTIONS PRUNEFS PRUNEPATHS NETPATHS LOCALUSER
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# Set the task to run with desired I/O priority if possible
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# Linux supports io scheduling priorities and classes since
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# 2.6.13 with the CFQ io scheduler
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if [ -x /usr/bin/ionice ] && [ "${UPDATDB_NO_IONICE}" = "" ]; then
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# don't run ionice if kernel version < 2.6.13
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KVER=$(uname -r)
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case "$KVER" in
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2.[012345]*) ;;
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2.6.[0-9]) ;;
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2.6.[0-9].*) ;;
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2.6.1[012]*) ;;
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*)
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# Avoid providing "-n" when IONICE_CLASS isn't 1 or 2
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case "$IONICE_CLASS" in
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1|2) priority="-n ${IONICE_PRIORITY:-7}" ;;
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*) priority="" ;;
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esac
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ionice -c $IONICE_CLASS $priority -p $$ > /dev/null 2>&1 || true
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;;
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esac
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fi
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if getent passwd $LOCALUSER > /dev/null ; then
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cd / && nice -n ${NICE:-10} updatedb.findutils 2>/dev/null
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else
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echo "User $LOCALUSER does not exist."
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exit 1
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fi
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