#! /bin/sh
# doexpire - overall administration for expire

# =()<. ${NEWSCONFIG-@<NEWSCONFIG>@}>()=
. ${NEWSCONFIG-/var/lib/news/bin/config}

PATH=$NEWSCTL/bin:$NEWSBIN/expire:$NEWSBIN:$NEWSPATH ; export PATH
umask $NEWSUMASK

lock="$NEWSCTL/LOCKexpire"
ltemp="$NEWSCTL/L.$$"
echo $$ >$ltemp
trap "rm -f $ltemp ; exit 0" 0 1 2 15
if newslock $ltemp $lock
then
	trap "rm -f $ltemp $lock ; exit 0" 0 1 2 15
else
	echo "$0: expire apparently already running" | mail "$NEWSMASTER"
	exit 1
fi

hopt=
if test " `spacefor 1 archive`" -le 0
then
	(
		echo "$0:"
		echo "	Space shortage in archiving area!"
		echo "	Unable to archive old articles -- holding them in"
		echo "	current directories using \`expire -h'.  If shortage"
		echo "	persists, human action is urgently needed."
	) | mail "$NEWSMASTER"
	hopt=-h
fi

cd $NEWSCTL
forcer=no
for o
do
	if test " $o" = " -r"
	then
		forcer=yes
		ropt=
	fi
done
case "$forcer" in
no)	ropt=-r
	for counter in x x x x		# four tries
	do
		rm -f history.o		# it's about to vanish anyway
		size="`sizeof history history.pag history.dir`"
		if test " `spacefor $size control`" -gt 0
		then
			ropt=
			break
		fi
		sleep 600		# and hope it will improve
	done
	if test " $ropt" = " -r"
	then
		(
			echo "$0:"
			echo "	SEVERE SPACE SHORTAGE in $NEWSCTL !"
			echo "	Unable to rebuild history files due to insufficient"
			echo "	space for temporaries -- resorting to \`expire -r'."
			echo "	Growth of the history files will make things worse;"
			echo "	if shortage persists, human action is urgently needed."
		) | mail "$NEWSMASTER"
	fi
	;;
esac

expire $ropt $hopt $* $NEWSCTL/explist 2>/tmp/doex$$
if test -s /tmp/doex$$
then
	(echo 'expire problems:' ; cat /tmp/doex$$ ) | mail "$NEWSMASTER"
	rm -f /tmp/doex$$
	exit 1
fi
rm -f /tmp/doex$$
exit 0