#!/bin/bash

# Copyright (c) 2010, Lawrence Livermore National Security, LLC. Produced at the
# Lawrence Livermore National Laboratory. LLNL-CODE-443211. All Rights reserved.
# See file COPYRIGHT for details.
#
# This file is part of the MFEM library. For more information and source code
# availability see http://mfem.org.
#
# MFEM is free software; you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License (as published by the Free
# Software Foundation) version 2.1 dated February 1999.

# Print usage information
case $1 in
   -h|-help)
      cat <<EOF

   $0 [-h|-help] {mfem_dir}

   where: {mfem_dir}  is the MFEM source directory [default value: ../..]
          -h|-help    prints this usage information and exits

   This script checks if the code in mfem_dir conforms to the MFEM C++ style
   (currently based on astyle-2.05.1). Note that the comparison is done with
   "git diff", so all differences between mfem_dir and the repository will be
   reported. The local changes can be erased (lost!) with "git checkout .".

   In addition to C++ styling, the script also verifies that std::cout and
   std::cerr are not used in the library (use mfem::out and mfem::err instead).

   Example usage: $0 ../..

EOF
      exit
      ;;
esac

# Setup
cur_dir=`pwd`
mfem_dir=$1
if [ "$mfem_dir" = "" ]; then
    mfem_dir="../.."
fi
cd $mfem_dir
mfem_dir=`pwd`
shift

# Verify C++ code styling in MFEM
cd $mfem_dir
make distclean
make style
(git diff) 1>&2

# Verify that std::cout and std::cerr are not used in the library (use mfem::out
# and mfem::err instead)
(grep cout */*pp | grep -v 'examples/' | grep -v 'general/globals' | grep -v 'cerrno') 1>&2
(grep cerr */*pp | grep -v 'examples/' | grep -v 'general/globals' | grep -v 'cerrno') 1>&2

# Return to the original directory
cd $cur_dir