freebsd-dev/contrib/nvi/build/recover.in
Peter Wemm b8ba871bd9 Import of nvi-1.79, minus a few bits that we dont need (eg: postscript
files, curses, db, regex etc that we already have).  The other glue will
follow shortly.

Obtained from: Keith Bostic <bostic@bostic.com>
1996-11-01 06:45:43 +00:00

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#!/bin/sh -
#
# @(#)recover.in 8.8 (Berkeley) 10/10/96
#
# 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
# 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
# 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