PREIN

/bin/sh

getent group chrony > /dev/null || /usr/sbin/groupadd -r chrony
getent passwd chrony > /dev/null || /usr/sbin/useradd -r -g chrony \
       -d /var/lib/chrony -s /sbin/nologin chrony
:

PREUN

/bin/sh

if [ $1 -eq 0 ] ; then 
        # Package removal, not upgrade 
        /usr/bin/systemctl --no-reload disable chronyd.service chrony-wait.service > /dev/null 2>&1 || : 
        /usr/bin/systemctl stop chronyd.service chrony-wait.service > /dev/null 2>&1 || : 
fi 
if [ "$1" -eq 0 ]; then
        /sbin/install-info --delete /usr/share/info/chrony.info.gz \
                /usr/share/info/dir &> /dev/null
fi
:

POSTIN

/bin/sh

if [ $1 -eq 1 ] ; then 
        # Initial installation 
        /usr/bin/systemctl preset chronyd.service chrony-wait.service >/dev/null 2>&1 || : 
fi 
/sbin/install-info /usr/share/info/chrony.info.gz /usr/share/info/dir &> /dev/null
:

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 chronyd.service >/dev/null 2>&1 || : 
fi