#!/bin/sh 
#
# Edit a NetInfo (NI) database on a NeXT
#
# Eric Myers <myers@umich.edu>   14 October 1995
# Department of Physics, University of Michigan, Ann Arbor, MI, USA
# @(#) $Revision: 1.1 $ - $Date: 1997/10/30 16:01:35 $
#======================================================================*
PROG=`basename $0`

if [ $# -lt 1 ]; then
  echo -n "Which database do you wish to edit? "
  read NAME
else
  NAME=$1
fi
shift

if [ $# -lt 1 ]; then
  echo "$PROG: Local Domain assummed..."
  DOMAIN=.  
else
  DOMAIN=$1
fi

EDITOR=${EDITOR-"/usr/ucb/vi"}
TMP=/tmp/$PROG.$NAME

# niedit first makes sure another niedit is not running by looking
# for the file $TMP.  If it already exists, niedit aborts.

if [ -f $TMP ]; then
  echo "$PROG: another niedit appears to be running ($TMP exists)."
  exit 1
else
  touch $TMP
fi

# get database file from NI

nidump $NAME $DOMAIN >$TMP ; RC=$?
if [ $RC -ne 0 ]; then
  echo $PROG: Cannot edit $NAME in domain \"$DOMAIN\".
  exit 2
fi

# edit the file

$EDITOR $TMP; RC=$?

# if edited okay and new file not empty, then load NI database

if [ $RC = 0 -a -s $TMP ]; then
  niload -v -d $NAME $DOMAIN <$TMP  ; RC=$?
  if [ $RC = 0 ]; then
    /bin/rm $TMP
  else
    echo "$PROG: niload failed.  Temp file $TMP remains."
  fi
else
  echo "$PROG: Editor error. $NAME database was NOT updated. "

fi