#!/bin/sh

# Copyright (c) 1999,2000,2002-2007
# Utrecht University (The Netherlands),
# ETH Zurich (Switzerland),
# INRIA Sophia-Antipolis (France),
# Max-Planck-Institute Saarbruecken (Germany),
# and Tel-Aviv University (Israel).  All rights reserved.
#
# This file is part of CGAL (www.cgal.org); 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 3 of the License,
# or (at your option) any later version.
#
# Licensees holding a valid commercial license may use this file in
# accordance with the commercial license agreement provided with the software.
#
# This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
# WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
#
# $URL: svn+ssh://fcacciola@scm.gforge.inria.fr/svn/cgal/trunk/Scripts/scripts/cgal_create_makefile $
# $Id: cgal_create_makefile 36976 2007-03-09 22:53:24Z reichel $
#
# Author(s)     : various

# This script creates a CGAL cmake script with entries for all .C and .cpp
# files in the current directory.
#
# Usage: cgal_create_cmake_script TYPE
#
#  echo "  TYPE can be any of "demo", "example" or "test".. any other value is ignored"

#VERSION=2.0

create_cmake_script()
{
  # print makefile header
  cat <<EOF
# Created by the script cgal_create_cmake_script
# This is the CMake script for compiling a CGAL application.


project( ${PROJECT}_${TYPE} )
EOF
  cat <<'EOF'

cmake_minimum_required(VERSION 2.6.2)
if("${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}" VERSION_GREATER 2.6)
  if("${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}.${CMAKE_PATCH_VERSION}" VERSION_GREATER 2.8.3)
    cmake_policy(VERSION 2.8.4)
  else()
    cmake_policy(VERSION 2.6)
  endif()
endif()

EOF

  if [ "${TYPE}" = "demo" ] ; then
    target_name="${PROJECT}_${TYPE}"
    
    for file in `ls "$SOURCE_DIR"*.C "$SOURCE_DIR"*.cpp 2>/dev/null | sort` ; do
      all="$all $file"
    done
    if [ -z "${all}" ]; then return; fi
    cat <<'EOF'  
find_package(CGAL QUIET COMPONENTS Core Qt3 )

if ( CGAL_FOUND )

  include( ${CGAL_USE_FILE} )
  
  find_package(Qt3-patched QUIET )
  # FindQt3-patched.cmake is FindQt3.cmake patched by CGAL developers, so
  # that it can be used together with FindQt4: all its variables are prefixed
  # by "QT3_" instead of "QT_".
  
  if(CGAL_Qt3_FOUND AND QT3_FOUND)
  
    include( Qt3Macros-patched )
EOF
    echo "    qt3_automoc( ${all} )"
    cat<<'EOF'

    # Make sure the compiler can find generated .moc files
    include_directories(BEFORE ${CMAKE_CURRENT_BINARY_DIR})
  
    include_directories( ${QT3_INCLUDE_DIR} )

EOF
    
    if [ -d "${SOURCE_DIR}../../include" ] ; then
      echo "  include_directories (BEFORE \"${SOURCE_DIR}../../include\")"
      echo
    fi
    if [ -d "${SOURCE_DIR}../include" ] ; then
      echo "  include_directories (BEFORE \"${SOURCE_DIR}../include\")"
      echo
    fi
    if [ -d "${SOURCE_DIR}include" ] ; then
      echo "    include_directories (BEFORE \"${SOURCE_DIR}include\")"
      echo
    fi
    echo "Adding a target ${target_name}..." >&3
    cat <<EOF
    add_executable  (${target_name} ${all})
  
    add_to_cached_list( CGAL_EXECUTABLE_TARGETS ${target_name} )
  
  
    # Link the executable to CGAL and third-party libraries
    target_link_libraries(${target_name} \${QT3_LIBRARIES} \${CGAL_LIBRARIES} \${CGAL_3RD_PARTY_LIBRARIES} )
  else()
  
    message(STATUS "NOTICE: This demo requires Qt3 and the CGAL Qt3 library, and will not be compiled.")
  
  endif()
  
else()
  
    message(STATUS "NOTICE: This demo requires the CGAL library, and will not be compiled.")
  
endif()
EOF
    
  else
  
    cat <<'EOF'
find_package(CGAL QUIET COMPONENTS Core )

if ( CGAL_FOUND )

  include( ${CGAL_USE_FILE} )

  include( CGAL_CreateSingleSourceCGALProgram )

EOF
    if [ -d "${SOURCE_DIR}../../include" ] ; then
      echo "  include_directories (BEFORE \"${SOURCE_DIR}../../include\")"
      echo
    fi
    if [ -d "${SOURCE_DIR}../include" ] ; then
      echo "  include_directories (BEFORE \"${SOURCE_DIR}../include\")"
      echo
    fi
    if [ -d "${SOURCE_DIR}include" ] ; then
      echo "    include_directories (BEFORE \"${SOURCE_DIR}include\")"
      echo
    fi
    
    for file in `ls "$SOURCE_DIR"*.C "$SOURCE_DIR"*.cpp 2>/dev/null | sort` ; do
      # Create an executable for each cpp that  contains a function "main()"
      BASE=`basename $file .C`
      BASE=`basename $BASE .cpp`
      egrep '\bmain[ \t]*\(' $file >/dev/null 2>&1
      if [ $? -eq 0 ]; then
        echo "  create_single_source_cgal_program( \"$file\" )"
        echo "Adding a target ${BASE}..." >&3
      fi
    done
    
    cat <<'EOF'

else()
  
    message(STATUS "This program requires the CGAL library, and will not be compiled.")
  
endif()
EOF

  fi
  
  echo

}


usage()
{
  echo "Usage: cgal_create_cmake_script [TYPE] [--source_dir <source directory>]"
  echo
  echo "  Create a CMakeLists.txt file in the current working directory."
  echo
  echo "  TYPE must be any of example, demo or test. The default is example."
  echo
  echo "  If the option --source_dir is specified with a directory, the "
  echo "  CMakeLists.txt uses source files from that directory, otherwise "
  echo "  the source directory is supposed to be the current directory."
}

SOURCE_DIR=

while [ $1 ]; do
    case "$1" in
        -h|-help|--h|--help)
            usage; exit
        ;;
        example) 
            if [ -z "$TYPE" ]; then TYPE=$1; shift; else usage; exit 1; fi
        ;;
        demo) 
            if [ -z "$TYPE" ]; then TYPE=$1; shift; else usage; exit 1; fi
        ;;
        test) 
            if [ -z "$TYPE" ]; then TYPE=$1; shift; else usage; exit 1; fi
        ;;
        --source_dir)
            if [ -d "$2" ]; then 
                SOURCE_DIR=$2; 
                shift;
                shift;
            else
                if [ -z "$2" ]; then
                    echo "Error: you must specify a directory after the --source_dir option!"
                    echo
                else
                    echo "Error: \"$2\" is not a directory!"
                    echo
                fi
                usage; exit 1; 
            fi
        ;;
        *) 
            echo "Unknown option: $1"
            usage; exit 1
        ;;
    esac
done

OUTPUTFILE=CMakeLists.txt
if [ -n "$SOURCE_DIR" ]; then
    PROJECT=`basename $SOURCE_DIR`
    SOURCE_DIR=$SOURCE_DIR/
else
    PROJECT=`basename $PWD`
fi

if [ -f ${OUTPUTFILE} ] ; then
  echo "moving $OUTPUTFILE to ${OUTPUTFILE}.bak ..."
  mv -f $OUTPUTFILE ${OUTPUTFILE}.bak
fi
create_cmake_script 3>&2 > $OUTPUTFILE
echo "created $OUTPUTFILE in $PWD ..."