49 lines
1.3 KiB
Plaintext
49 lines
1.3 KiB
Plaintext
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#! /bin/sh
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set -e
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# check if we run on battery and if so then don't run
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if which on_ac_power >/dev/null 2>&1; then
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ON_BATTERY=0
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on_ac_power >/dev/null 2>&1 || ON_BATTERY=$?
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if [ "${ON_BATTERY}" -eq 1 ]; then
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exit 0
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fi
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fi
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# check if we are already running (lockfile)
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LOCKFILE="/var/lock/mlocate.daily.lock"
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if [ -e "${LOCKFILE}" ]; then
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echo >&2 "Warning: \"${LOCKFILE}\" already present, not running updatedb."
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exit 1
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fi
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touch "${LOCKFILE}"
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# trap the lockfile only if we really run the updatedb
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trap "rm -f ${LOCKFILE}" EXIT
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# source the user specified variables
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if [ -f /etc/mlocate-cron.conf ]; then
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. /etc/mlocate-cron.conf
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fi
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# check the config file
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NODEVS=""
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if [ ! -f /etc/updatedb.conf ]; then
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NODEVS=$(< /proc/filesystems awk '$1 == "nodev" && $2 != "rootfs" { print $2 }')
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fi
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# alter the priority of the updatedb process
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if [ -x /usr/bin/renice ]; then
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/usr/bin/renice +${NICE:-19} -p $$ > /dev/null 2>&1
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fi
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if [ -x /usr/bin/ionice ] && /usr/bin/ionice -c3 true 2>/dev/null; then
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/usr/bin/ionice -c${IONICE_CLASS:-2} -n${IONICE_PRIORITY:-7} -p $$ > /dev/null 2>&1
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fi
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# run the updatedb if possible
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if [ -x /usr/bin/updatedb ]; then
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/usr/bin/updatedb -f "${NODEVS}"
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else
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echo >&2 "Warning: \"/usr/bin/updatedb\" is not executable, unable to run updatedb."
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exit 0
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fi
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