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#!/bin/sh
CMD=/usr/sbin/update-apt-xapian-index
# ionice should not be called in a virtual environment
# (similar to man-db cronjobs)
egrep -q '(envID|VxID):.*[1-9]' /proc/self/status || IONICE=/usr/bin/ionice
# Check if we're on battery
if which on_ac_power >/dev/null 2>&1; then
on_ac_power >/dev/null 2>&1
ON_BATTERY=$?
# Here we use "-eq 1" instead of "-ne 0" because
# on_ac_power could also return 255, which means
# it can't tell whether we are on AC or not. In
# that case, run update-a-x-i nevertheless.
[ "$ON_BATTERY" -eq 1 ] && exit 0
fi
# Rebuild the index
if [ -x "$CMD" ]
then
if [ -x "$IONICE" ]
then
nice -n 19 $IONICE -c 3 $CMD --quiet
else
nice -n 19 $CMD --quiet
fi
fi
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