#!/bin/sh
cd /

SPOOLDIR="$(/usr/bin/exim -bP spool_directory 2> /dev/null | /bin/sed 's/.*=[[:space:]]\(.*\)/\1/')"

[ ! -d "$SPOOLDIR" ] && echo "Spooldir [$SPOOLDIR] is not a directory" && exit 1

for db in $(/usr/bin/find $SPOOLDIR/db -maxdepth 1 -name '*.lockfile' -or -type f -printf '%f\n'); do
	t=
	case "$db" in
		callout)
			t="-t 7d"
			;;
		*)
			;;
	esac
	/usr/bin/exim_tidydb $t $SPOOLDIR $db > /dev/null
	# Try to lower it's size if it is bigger than 300M. Result still can be bigger if the db contains
	# so much unexpired data.
	toobig=$(/usr/bin/find $SPOOLDIR/db/$db -size +300M)
	if [ -n "$toobig" ]; then
		/usr/bin/exim_dumpdb $SPOOLDIR $db | /usr/bin/exim_dbmbuild -nowarn - $SPOOLDIR/db/$db.new > /dev/null
		chown exim:exim $SPOOLDIR/db/$db.new
		chmod 640 $SPOOLDIR/db/$db.new
		mv $SPOOLDIR/db/$db.new $SPOOLDIR/db/$db
	fi

done

exit 0