#!/bin/sh -vx
#
#  Script to update Moira from Registrar and Personnel "tapes".

if [ "filler $1" != "filler staff" -a "filler $1" != "filler student" ] ; then
    echo "Bad argument $1"
    echo "Usage: $0 [ staff | student ]"
    exit 1
fi
who="$1"
rdir=/moira
bdir=$rdir/bin
tdir=$rdir/tapes
ldir=$rdir/load

date=`date +%y%m%d`
date=`expr $date - 1` # files are postdated by 1 day

cd "$ldir" || exit 2

if  [ -f "$tdir/$who.input.$date.Z" ] ; then

    if [ -f "$ldir/$who.input.$date" ] ; then
	echo "Pre-existing $ldir/$who.input.$date, will not overwrite."
	exit 3
    fi

    zcat "$tdir/$who.input.$date.Z" | "$bdir/$who.cvt" \
	> "$ldir/$who.input.$date"

    [ -s "$ldir/$who.input.$date" ] \
    && [ `diff $ldir/$who.input.last $ldir/$who.input.$date |wc -l` -lt 500 ] \
    && rm $ldir/$who.input.last \
    && ln -s $who.input.$date $ldir/$who.input.last \
    && $bdir/$who -n $ldir/$who.input.$date > $ldir/$who.output.$date 2>&1 \

#    && egrep -v "($who): (adding|updating)" $ldir/$who.output.$date \
#	> $ldir/$who.err.$date 2>&1 \
#    && cat /usr/local/lib/mail_header $who.err | mail dkk

fi