mythbackend scripts

checkShutdown

#! /bin/sh
# (file must be present on master and slave(s))

OK_TO_SHUTDOWN=0
DO_NOT_SHUTDOWN=1
DISABLE_AUTO_SHUTDOWN=3

xpathQuery() {
        xpath -q -e "$2" "$1" | awk -F "[<>]" '{print $3}'
}

mysqlExec() {
        mysql --host $host $database -u$user -p$password -se "$1"
}

isMasterBackend() {
        hostname=`hostname`
        masterServerIP=`mysqlExec "select data from settings where value = 'MasterServerIP' and hostname is null"`
        thisBackendServerIP=`mysqlExec "select data from settings where value = 'BackendServerIP' and hostname = '$hostname'"`
        [ "$masterServerIP" = "$thisBackendServerIP" ] && return 0
        return 1
}


minUptimeNotReached() {
        [ `expr $minUptimeMinutes \* 60` -ge `cat /proc/uptime | cut -d'.' -f1` ] && return 1
        return 0
}

areUsersLoggedIn() {
        [ `w -h | wc -l` -ge 0 ] && return 1
        return 0
}


config=~/.mythtv/config.xml
host=`xpathQuery $config Configuration/Database/Host`
database=`xpathQuery $config Configuration/Database/DatabaseName`
user=`xpathQuery $config Configuration/Database/UserName`
password=`xpathQuery $config Configuration/Database/Password`

# never shutdown the MBE
isMasterBackend && exit $DISABLE_AUTO_SHUTDOWN

areUsersLoggedIn || exit $DO_NOT_SHUTDOWN

minUptimeMinutes=60
minUptimeNotReached || exit $DO_NOT_SHUTDOWN

exit $OK_TO_SHUTDOWN

setwakeuptime.dummy

#! /bin/sh
# (file must be present on master)

# SCRIPT MUST BE PRESENT OTHERWISE SHUTDOWN IS CANCELED :-/

exit 0

sleep

#! /bin/sh
# (file must be present on slave(s))

# make sure the following lines exists in /etc/sudoers (use visudo to add them)
#       # Allow mythtv users to shut down this machine
#       %mythtv ALL = NOPASSWD: /sbin/poweroff


/usr/bin/sudo /sbin/poweroff