#!/bin/sh
# creates the allmsg shell script to send messages to a class
# usage:  makeallmsg [-f <fname>] <namelist>
# Has one parm $1:  the file containing student names & email addresses
# one per line.  Each line is expected to be of the form
#  login_id    email_address        Name
#  turing      aturing@erols.com   Alan Mathison Turing
# Everything after the email address is treated as the name
# creates a shell script in the current directory
# default name is 'allmsg' unless name is given through -f flag
#     Bill Bynum
#     August 1998
pgmname=`basename $0`
sname=allmsg
usage(){
   echo 'Usage:  '$pgmname' [ -f scriptname ] name_list_file'
   echo "    'scriptname' is the name of the script to be produced"
   echo "         default is  \"$sname\""
   echo "    'name_list_file' is a file containing student user ids, email addresses 
   echo "         and names, one student per line.  Each line is expected to be of 
   echo "         the form"
   echo "            user id      email address        name"
   echo "            turing     aturing@erols.com  Alan Mathison Turing" 
   echo "    Everything after the email address is treated as a part of the name"
}
case $# in
0)  usage
    exit;;
esac
while true
do
   case $1 in
   -f) sname=$2
         shift
         shift;;
   -*) usage
       exit;;
   *) break;;
   esac
done
case $1 in
"")
   usage
   exit;;
esac
if (test ! -f $1) then
   echo "The file \"$1\" of names does not exist!"
   exit
fi
if (test -f $sname) then
   rm -f $sname
fi
echo '#!/bin/sh' > $sname
echo "# Created by `basename $0` from $1 `date`" >> $sname
echo 'BYNUMBIN=/home/f85/bynum/bin' >> $sname
echo 'sysbin=/bin:/usr/bin:/usr/local/bin:/usr/lib' >> $sname
echo 'otherbin=$HOME/bin:$BYNUMBIN:$BYNUMBIN/i586' >> $sname
echo 'PATH=$sysbin:$otherbin:.' >> $sname
echo 'usage(){' >> $sname
echo '   echo  "Usage: $pgmname [ -d ] msg_fname subject"' >>$sname
echo '   echo  "   \"msg_fname\" and  \"subject\" are BOTH REQUIRED"' >>$sname
echo '   echo  "   -d  debug (show message, but don'\''t send it)"' >>$sname
echo '}' >> $sname
echo 'pgmname=`basename $0`' >> $sname
echo 'case $# in' >> $sname
echo '0|1)  usage' >> $sname
echo '      exit;;' >> $sname
echo 'esac' >> $sname
echo 'while true' >> $sname
echo 'do' >> $sname
echo '   case $1 in' >> $sname
echo '   -d) debug="-d"' >> $sname
echo '       shift;;' >> $sname
echo '   -*) echo "Unknown option \"$1\""' >> $sname
echo '       usage' >>$sname
echo '       exit;;' >> $sname
echo '   *) break;;' >> $sname
echo '   esac' >> $sname
echo 'done' >> $sname
echo 'case $# in' >> $sname
echo '0|1)  usage' >> $sname
echo '      exit;;' >> $sname
echo 'esac' >> $sname
echo 'if (test ! -f $1) then' >> $sname
echo '   echo "The message file \"$1\" does not exist!"' >> $sname
echo '   exit' >> $sname
echo 'fi' >> $sname
awk '
$1 ~ /#/ || $1 ~ /^$/
$1 !~ /#/ && $1 !~ /^$/ { 
   printf("sendmsg '\$'debug \"")
   printf("%s",$3);
   for (i = 4;i <= NF; i++) printf(" %s",$i)
   printf("\" %s $1 \"$2\"\n",$2) 
} 
' $1 >> $sname

echo 'echo all messages sent' >> $sname
echo Make $sname executable ...
chmod 700 $sname

# 
# $Id: makeallmsg,v 1.11 2005/09/20 13:22:41 bynum Exp $
#