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#!/bin/bash

# To enable this script, pass it to vdr with the -s option, eg.
# "-s vdr-shutdown.sh" (sans quotes) in VDR_OPTIONS in /etc/sysconfig/vdr.
# See also below for additional required sudo configuration, and
# README.package for information how to get the time written to ACPI and
# thus getting the system to wake up at the correct time.

# How many minutes before the next timer event should the system wake up,
# ie. how long does it take to boot until VDR is running and ready to record?
# Some CI/CAM's take a long time to initialize so we use a pretty generous
# value here by default.

mins=${WAKEUP_BEFORE_RECORDING:-10}

wakeupfile=/var/lib/vdr/next-wakeup
rm -f $wakeupfile

if [ ${1:-0} -gt 0 ] ; then
    echo $(( $1 - $mins * 60 )) > $wakeupfile
fi

# In order to make this work, the vdr user needs to be allowed to run
# "/sbin/shutdown -h now" with sudo as root, without entering a password and
# without a tty.  Example sudoers(5) configuration to accomplish that:
#     Defaults:vdr    !requiretty
#     vdr             ALL = (root) NOPASSWD: /sbin/shutdown -h now

exec sudo /sbin/shutdown -h now