dist/recover.in

   1 #!/bin/sh -
   2 #
   3 #       $Id: recover.in,v 8.9 2001/08/30 13:59:23 skimo Exp $ (Berkeley) $Date: 2001/08/30 13:59:23 $
   4 #
   5 # Script to recover nvi edit sessions.
   6
   7 RECDIR="@vi_cv_path_preserve@"
   8 SENDMAIL="@vi_cv_path_sendmail@"
   9
  10 echo 'Recovering nvi editor sessions.'
  11
  12 # Check editor backup files.
  13 vibackup=`echo $RECDIR/vi.*`
  14 if [ "$vibackup" != "$RECDIR/vi.*" ]; then
  15         for i in $vibackup; do
  16                 # Only test files that are readable.
  17                 if test ! -r $i; then
  18                         continue
  19                 fi
  20
  21                 INUSE="@INUSE@"
  22                 if test "$INUSE" && $INUSE; then
  23                         continue
  24                 fi
  25
  26                 # Unmodified nvi editor backup files either have the
  27                 # execute bit set or are zero length.  Delete them.
  28                 if test -x $i -o ! -s $i; then
  29                         rm $i
  30                 fi
  31         done
  32 fi
  33
  34 # It is possible to get incomplete recovery files, if the editor crashes
  35 # at the right time.
  36 virecovery=`echo $RECDIR/recover.*`
  37 if [ "$virecovery" != "$RECDIR/recover.*" ]; then
  38         for i in $virecovery; do
  39                 # Only test files that are readable.
  40                 if test ! -r $i; then
  41                         continue
  42                 fi
  43
  44                 INUSE="@INUSE@"
  45                 if test "$INUSE" && $INUSE; then
  46                         continue
  47                 fi
  48
  49                 # Delete any recovery files that are zero length, corrupted,
  50                 # or that have no corresponding backup file.  Else send mail
  51                 # to the user.
  52                 recfile=`awk '/^X-vi-recover-path:/{print $2}' < $i`
  53                 if test -n "$recfile" -a -s "$recfile"; then
  54                         $SENDMAIL -t < $i
  55                 else
  56                         rm $i
  57                 fi
  58         done
  59 fi