#! /bin/sh

###########################################################
#
# @file: config/saga-config(.in)
#
# @description:
#   saga-config can be used to determine what compile and linker
#   flags should be used for compiling programs using the SAGA.
#
# Copyright (c) 2005-2007 Andre Merzky (andre@merzky.net)
# This file is part of the SAGA Engine.
#
# Contributed by Andre Merzky   <merzky@cs.vu.nl>.
#
###########################################################

### LICENSE ###

saga_prefix="@SAGA_LOCATION@"

if ! test "x$SAGA_LOCATION" = "x"; then
  saga_prefix=$SAGA_LOCATION
fi

saga_version="@SAGA_VERSION@"
saga_compiler="@CXX@"
saga_compiler_version="@CXX_VERSION@"
saga_syslibs="@SAGA_LDFLAGS_SYS@ @BOOST_LDFLAGS@ @BOOST_LIBS@"
saga_syscppflags="@SAGA_CPPFLAGS@ -I$saga_prefix/include/saga -I$saga_prefix/include/ @BOOST_CPPFLAGS@"
saga_syscxxflags="@SAGA_CXXFLAGS@ -I$saga_prefix/include/saga -I$saga_prefix/include/ @BOOST_CPPFLAGS@"
saga_ostype="@SAGA_OSTYPE@"
saga_packages=`ls $saga_prefix/lib/libsaga_package_* 2> /dev/null | grep -v -e 'libsaga.*\..*\.' | sed -e 's/^.*libsaga_package_\([^\.]*\)\..*$/\1/' | sort | uniq`
saga_adaptors=`ls $saga_prefix/lib/libsaga_adaptor_* 2> /dev/null | grep -v -e 'libsaga.*\..*\.' | sed -e 's/^.*libsaga_adaptor_\(.*\)_\([^\.]*\)\..*$/\1 - \2/' | sort | uniq`
saga_summary="$saga_prefix/share/saga/config.summary"

usage()
{
  cat <<EOF

  Usage: saga-config [OPTIONS]

  Options:

    [--prefix]           get install prefix
    [--version]          get version
    [--compiler]         get compiler
    [--compiler-version] get compiler version
    [--cxxflags]         get compiler flags
    [--cppflags]         get precompiler flags
    [--ldflags]          get linker flags
    [--libs]             get linker flags
    [--packages]         list installed packages
    [--adaptors]         list installed adaptors
    [--summary]          print configuration summary

EOF
  exit $1
}

if test $# -eq 0;
then
  usage 1 1>&2
fi

while test $# -gt 0; do
  case "$1" in
  -*=*) optarg=`echo "$1" | sed 's/[-_a-zA-Z0-9]*=//'` ;;
  *) optarg= ;;
  esac

  case $1 in
    --prefix)
      print_saga_prefix=1
      ;;
    --version)
      print_saga_version=1
      ;;
    --cxxflags)
      print_saga_cxxflags=1
      ;;
    --cppflags)
      print_saga_cppflags=1
      ;;
    --ldflags)
      print_saga_libs=1
      ;;
    --libs)
      print_saga_libs=1
      ;;
    --compiler)
      print_saga_compiler=1
      ;;
    --compiler-version)
      print_saga_compiler_version=1
      ;;
    --packages)
      print_saga_packages=1
      ;;
    --adaptors)
      print_saga_adaptors=1
      ;;
    --summary)
      print_saga_summary=1
      ;;
    *)
      usage 1 1>&2
      ;;
  esac
  shift
done

if ! test "x$SAGA_LOCATION" = "x" ;
then
     saga_prefix=$SAGA_LOCATION
fi

if test "x$check_packages" = "x" ;
then
  check_packages=all
fi

#####################################################################
#
# check saga location
#

summary=""

if test -f "$saga_prefix/share/saga/config.summary"; then
  summary="$saga_prefix/share/saga/config.summary"
fi

if test -f "$saga_prefix/share/saga/config.summary.saga-core"; then
  summary="$saga_prefix/share/saga/config.summary.saga-core"
fi

if test "x$summary" = "x"; then
  echo "Error: SAGA_LOCATION ($saga_prefix) seems invalid"
  exit 1
fi

#####################################################################
#
# find package libs
#
saga_package_libs=""

SO=so
if test "x$saga_ostype" = "xSAGA_APPLE"; then
  SO=dylib
fi

if test "x$check_packages" = "xall" ;
then

  # find all packages
  LIBFILTER="sed 's/\.$SO//g'"
  arg1="$saga_prefix/lib/libsaga_package_*[a-z].$SO"
  arg2="s/\.$SO//"
  arg3="s/.*\///"
  arg4="s/^lib/-l/"
  saga_package_libs=`ls $arg1 | sed "$arg2" | sed "$arg3" | sed "$arg4"`

else

  # find individual packages
  for package in $check_packages
  do
  
      arg1="$saga_prefix/lib/libsaga_package_$package.$SO"
      arg2="s/\.$SO//"
      arg3="s/.*\///"
      arg4="s/^lib/-l/"
      this_package_lib=`ls $arg1 | sed "$arg2" | sed "$arg3" | sed "$arg4"`
  
      if test "x$this_package_lib" = "x" ;
      then
        echo "no such package found: $package"
        exit -1
      fi
  
      saga_package_libs="$saga_package_libs$this_package_lib "
  
  done

fi

#####################################################################

saga_cppflags="$saga_syscppflags -I$saga_prefix/include"
saga_cxxflags="$saga_syscxxflags"
saga_libs="-L$saga_prefix/lib -lsaga_core $saga_package_libs $saga_syslibs"

#####################################################################


if [ x != x"$print_saga_prefix" ] ;
then
   echo    $saga_prefix
fi

if [ x != x"$print_saga_version" ] ;
then
   echo    $saga_version
fi

if [ x != x"$print_saga_cxxflags" ] ;
then
   echo    $saga_cxxflags
fi

if [ x != x"$print_saga_cppflags" ] ;
then
   echo    $saga_cppflags
fi

if [ x != x"$print_saga_libs" ] ;
then
  echo $saga_libs
fi

if [ x != x"$print_saga_compiler" ] ;
then
  echo $saga_compiler
fi

if [ x != x"$print_saga_compiler_version" ] ;
then
  echo $saga_compiler_version
fi

if [ x != x"$print_saga_packages" ] ;
then
  echo "$saga_packages"
fi

if [ x != x"$print_saga_adaptors" ] ;
then
  echo "$saga_adaptors"
fi

if [ x != x"$print_saga_summary" ] ;
then
  if [ -f $saga_summary ] ; 
  then
    len=`wc -l $saga_summary | cut -f 1 -d ' '`
    len=`expr $len - 6` 
    head -n $len $saga_summary
  else
    echo "summary not available"
  fi
fi

exit 0