#!/bin/bash

WINCUPL_SHARED="c:/WinCupl/Shared"

# These are documented in http://ee.sharif.edu/~logic_circuits_t/readings/CUPL_Reference.pdf
cuplopts=-jaxf

usage()
{
   echo "Usage: $0 <pld> <outdir>"
   echo "    where <pld> is the PLD source file"
   echo "          <outdir> is an output directory"
   echo
   echo "The output directory will contain copies of the source files"
   echo "along with all output files, including compiler console output"
   echo "(errors, etc) in <pld_basename>.out."
   echo
   echo "If a corresponding <pld_basename>.si file exists, the simulator"
   echo "will also be run after a successful compile."
}

f="$1"
if [ ! -e "$f" ]; then
   usage
   exit 1
fi

f_base=`basename "$f" .pld`

outdir="$2"
if [ "$outdir" == "" ]; then
   usage
   exit 1
fi

if [ ! -d "$outdir" ]; then
   mkdir -p "$outdir"
   if [ ! -d "$outdir" ]; then
      echo "Output directory '$outdir' is not a directory"
      exit 1
   fi
fi

cp "$f" "$outdir"

if [ -f "$f_base".si ]; then
   cp "$f_base".si "$outdir"

   # Adding the 's' option makes it also run the simulator - it's not in the docs, but
   # I read about it somewhere.  I can't manage to get the simulator to run standalone.
   cuplopts="$cuplopts"s
fi

# Some bits of cupl only work if the files are in the current directory
f=`basename "$f"`
f_base=`basename "$f_base"`
cd "$outdir"


# Remove old output files
for ext in abs doc jed lst out pla sim so wo; do
   rm -f "$f_base.$ext"
done

export LIBCUPL="$WINCUPL_SHARED"/atmel.dl
"$WINCUPL_SHARED"/cupl $cuplopts "$f" > "$f_base".out

# Check and report errors
if [ "$?" -gt 0 ]; then

   # The compiler outputs errors mixed in with its other output, print them here
   grep '^[[]' "$f_base".out

   # If the .so file exists, then the compile succeeded and the simulator was run but failed
   if [ -e "$f_base".so ]; then
      # The simulaton doesn't output errors to the console, only to the .so file
      cat "$f_base".so
      echo
      echo "ERROR: Simulation failed, see errors above"
      exit 1
   else
      # No .so file means the simulator didn't run, i.e. the compile failed
      echo "ERROR: Compilation failed"
      exit 1
   fi
fi