afbackup.preinst

一套客户/服务器模式的备份系统代码,跨平台,支持linux,AIX, IRIX, FreeBSD, Digital Unix (OSF1), Solaris and HP-UX.

#!/bin/sh -e

fix_cruft ()
{
   echo "Removing superfluous /etc/services entry !"
   if grep -q "#-- afbackup begin" /etc/services; then
      TEMP=`tempfile`
      cat /etc/services >> $TEMP
      sed -e '/#-- afbackup begin/,/#-- afbackup end/d' <$TEMP >/etc/services
      rm $TEMP
   fi
   cat <<.EOF
If you get asked to overwrite your old configuration, please do so! You
can easily reconfigure your system with afserverconfig or
xafserverconfig. The existing status information will not be touched.
.EOF
}

ask_abort ()
{
   cat <<.EOF
You are upgrading from an incompatible version of afbackup. You have to
upgrade all your machines to the current version of afbackup and
afbackup-client or you should abort upgrading now.

Do you want to abort? (y/N)
.EOF
   read ANSWER
   case "$ANSWER" in
      y|Y)
	 exit 1
      ;;
   esac
}
      

case "$1" in
    upgrade)
	case "$2" in
	    2.6*)
	        fix_cruft
		ask_abort
	    ;;
	    2*|3.1*|3.3.[1-6]*)
	        ask_abort
	    ;;
        esac    	
    ;;

    install|abort-upgrade)
    ;;

    *)
        echo "preinst called with unknown argument \`$1'" >&2
        exit 0
    ;;
esac
#DEBHELPER#