NetBSD-5.0.2/dist/nvi/dist/recover.in

#!/bin/sh -
#
#	Id: recover.in,v 8.9 2001/08/30 13:59:23 skimo Exp (Berkeley) Date: 2001/08/30 13:59:23
#
# Script to recover nvi edit sessions.

RECDIR="@vi_cv_path_preserve@"
SENDMAIL="@vi_cv_path_sendmail@"

echo 'Recovering nvi editor sessions.'

# Check editor backup files.
vibackup=`echo $RECDIR/vi.*`
if [ "$vibackup" != "$RECDIR/vi.*" ]; then
	for i in $vibackup; do
		# Only test files that are readable.
		if test ! -r $i; then
			continue
		fi

		INUSE="@INUSE@"
		if test "$INUSE" && $INUSE; then
			continue
		fi

		# Unmodified nvi editor backup files either have the
		# execute bit set or are zero length.  Delete them.
		if test -x $i -o ! -s $i; then
			rm $i
		fi
	done
fi

# It is possible to get incomplete recovery files, if the editor crashes
# at the right time.
virecovery=`echo $RECDIR/recover.*`
if [ "$virecovery" != "$RECDIR/recover.*" ]; then
	for i in $virecovery; do
		# Only test files that are readable.
		if test ! -r $i; then
			continue
		fi

		INUSE="@INUSE@"
		if test "$INUSE" && $INUSE; then
			continue
		fi

		# Delete any recovery files that are zero length, corrupted,
		# or that have no corresponding backup file.  Else send mail
		# to the user.
		recfile=`awk '/^X-vi-recover-path:/{print $2}' < $i`
		if test -n "$recfile" -a -s "$recfile"; then
			$SENDMAIL -t < $i
		else
			rm $i
		fi
	done
fi