#! /bin/sh

     ###################################### 
     ##### Model Transformation Tools #####
     ######################################

# Bourne shell script: mtt

# P.J.Gawthrop Oct 1989, Dec 1989, 1990, 1991, Oct 1993, Dec 1993, Jan 1994, Dec 95
# P.J.Gawthrop Oct 1989, Dec 1989, 1990, 1991, Oct 1993, Dec 1993, Jan 1994, Dec 95, Nov 1996.
# Copyright (c) P.J.Gawthrop, 1989, 1990, 1991, 1993, 1994, 1995, 1996.

###############################################################
## Version control history
###############################################################
## $Header$
## $Log$
# Revision 1.42  1996/11/11  17:23:03  peterg
# Added numpar.m requirement to all .m targets
#
## Revision 1.41  1996/11/11 17:18:32  peterg
## VERSION 2.1
##
## Revision 1.40  1996/11/09 21:17:38  peterg
## Fixed bug with copying at level 0.
##
## Revision 1.39  1996/11/09 20:22:54  peterg

  echo
  echo 'MTT (Model Transformation Tools) version 2.1++'
  echo 'This is free software with ABSOLUTELY NO WARRANTY.'
  echo 'Type `mtt warranty'\' 'for details.'
  echo
fi

if [ "$1" = "" ]; then
if [ -z "$1" ]; then
  echo 'Usage: mtt help'
  echo '       mtt info'
  echo '       mtt info topic'
  echo '       mtt manual'
  echo '       mtt warranty'
  echo '       mtt clean'
  echo '       mtt <system_name> clean'

  file_exists=`ls $2_abg.fig 2> /dev/null`
  if [ -n "$file_exists" ]; then
    if [ "$quiet" != "quiet" ]; then    
      echo $2_abg.fig exists already - no action taken
    fi
  else
    path_name=$3
    if [ "$path_name" = "" ]; then
    if [ -z "$path_name" ]; then
      path_name=$MTTPATH/lib/examples
    fi
    echo Copying system $2 to here
    find $path_name -name "$2_*.*" -exec cp {} . \;
  fi
  exit
fi


# Save up the argument list in a file; but only if argument has changed
ARGS=$4;
#DIFF doesn't like empty files - so put a blank if empty
if [ -z $ARGS ]; then
if [ -z "$ARGS" ]; then
  ARGS=' ';
fi

cat > $1_args.new <<EOF
$ARGS
EOF

		echo Version control is not appropriate for representation $2
		exit  ;;
  esac
fi


# This is the main mtt programme
 
gmake -s  -f -  $1_$2.$3 << EOF

# Cancel implicit rules I don't want
%.dvi: %.tex

# If level>0, try and get subsystem files
ifneq ("$level","0")