PREIN

/bin/sh

getent group bitlbee > /dev/null || /usr/sbin/groupadd -r bitlbee
getent passwd bitlbee > /dev/null || /usr/sbin/useradd -r -g bitlbee -d /var/lib/bitlbee -s /sbin/nologin -c "BitlBee User" bitlbee
exit 0

PREUN

/bin/sh

  
if [ $1 -eq 0 ] ; then 
        # Package removal, not upgrade 
        /usr/bin/systemctl --no-reload disable bitlbee.service > /dev/null 2>&1 || : 
        /usr/bin/systemctl stop bitlbee.service > /dev/null 2>&1 || : 
fi

POSTIN

/bin/sh

  
if [ $1 -eq 1 ] ; then 
        # Initial installation 
        /usr/bin/systemctl preset bitlbee.service >/dev/null 2>&1 || : 
fi

POSTUN

/bin/sh

  
/usr/bin/systemctl daemon-reload >/dev/null 2>&1 || : 
if [ $1 -ge 1 ] ; then 
        # Package upgrade, not uninstall 
        /usr/bin/systemctl try-restart bitlbee.service >/dev/null 2>&1 || : 
fi