configure

#!/bin/bash

PARAMETERS="$0 $*"
CMAKEFLAGS=
SRCDIR=$(dirname "$(readlink -f "$0")")/src
CURPATH="$PWD"


function help(){
	echo ""
	echo "SCIL uses the CMake (http://www.cmake.org) buildsystem instead of configure."
	echo "CMake uses different options than configure, but you can use this script to "
	echo "specify them in the traditional way and get the equivalent cmake command."
	echo "Use the following options to change default paths."
	echo "--prefix=<dir>           : installation prefix"
	echo "--lgsl=<dir>             : path to lib-gsl"
	echo "--lzlib=<dir>            : path to lzlib"
	echo "--netcdf=<dir>           : path to NetCDF"
	echo "--cc=<compiler>          : path to the compiler"
	echo
	echo "Optional:"
        echo "--code-coverage   : compile with ctest and use gcov via target coverage to measure code coverage"
	echo "--build-dir=<dir>     : directory in which to build"
	echo "--debug                  : build SIOX with debug flags"
	echo "--verbose                : output the command but do not execute it"
	echo "--reconfigure            : run configure again with the parameters used the last time"
	echo "--plantuml-jar-dir=<dir> : directory containing plantuml.jar, useful for building the documentation"
	echo
}

buildDIR="build"

function checknetcdf(){
	if [[ "$1" == "" ]] ; then
		return
	fi
	where=$1
	if [[ ! -e "$where" ]] ; then
		echo "Error could not find NetCDF in $where ; directory does not exist"
		exit 1
	fi
	nc-config --libs > /dev/null
	if [ $? != 0 ] ; then
		if [[ -e $where/include && -e $where/lib ]] ; then
			AI="$AI:$where/include:$where/$extra_dir"
			AL="$AL:$where/lib:$where/lib64:$where/$extra_dir"
		else
			echo "Error could not find $what in $where"
			exit 1
		fi
	else
		if [[ -e $where/include && -e $where/lib ]] ; then
			AI="$AI $(nc-config --includedir)"
			AL="$AL $(nc-config --libs)"
		fi
	fi
}

function check(){
	if [[ "$1" == "" ]] ; then
		return
	fi
	where=$1
	what=$2
	extra_dir=$3
	if [[ ! -e "$where" ]] ; then
		echo "Error could not find $what in $where ; directory does not exist"
		exit 1
	fi

	export PKG_CONFIG_PATH=$where/lib/pkgconfig/:$where/lib64/pkgconfig/:$PKG_CONFIG_PATH
	#does not ship with pkg-config
	pkg-config --exists $what
	if [ $? != 0 ] ; then
		if [[ -e $where/include && -e $where/lib ]] ; then
			AI="$AI:$where/include:$where/$extra_dir"
			AL="$AL:$where/lib:$where/lib64:$where/$extra_dir"
		else
			echo "Error could not find $what in $where"
			exit 1
		fi
	fi
}



function reconfigure(){
	if [[ ! -e "configure.log" ]] ; then
		echo "Error, didn't run configure before!" ;
		exit 1
	fi
	$(cat configure.log)
	exit $?
}

set -- `getopt -u -l "help,version,debug,reconfigure,prefix:,plantuml-jar-dir:,cc:,netcdf:,with-cc:,with-cxx:,verbose,build-dir:,lzlib:,lgsl:,code-coverage" -o "hV" -- "$@"`
test $# -lt 1  && exit 1
while test $# -gt 0
do
	case "$1" in
		--help) help; exit;;
		--reconfigure) reconfigure;;
		--cc) export CC="$2"; shift;;
		--version) cmake --version; exit;;
		--lgsl) check "$2" "gsl"; shift;;
		--lzlib) check "$2" "z"; shift;;
		--netcdf) check "$2" ; shift;;
		--prefix) prefix="$2"; shift;;
		--debug) debug="yes"; ;;
                --code-coverage) debug="yes" ; codeCoverage="yes" ;;
		--with-cc) ccbin="$2"; shift;;
		--with-cxx) cxxbin="$2"; shift;;
		--build-dir) buildDIR="$2"; shift;;
		--plantuml-jar-dir) export PLANTUML_JAR_PATH="$2"; shift;;
		--verbose) VERBOSE="YES";;
		-V) VERBOSE="YES";;
		--) ;;
		*) echo "Unknown option $1"; exit 1;;
	esac
	shift
done


echo $PARAMETERS > configure.log

export ADDITIONAL_INC_PATH=$AI
export ADDITIONAL_LIB_PATH=$AL
TARGET_DIR="/usr/local"

if test -n "$codeCoverage"; then
	CMAKEFLAGS="$CMAKEFLAGS -DCODE_COVERAGE=ON"
fi

if test -n "$debug"; then
	CMAKEFLAGS="$CMAKEFLAGS -DCMAKE_BUILD_TYPE:STRING=Debug"
else
	CMAKEFLAGS="$CMAKEFLAGS -DCMAKE_BUILD_TYPE:STRING=Release"
fi

if test -n "$prefix"; then
	CMAKEFLAGS="$CMAKEFLAGS -DCMAKE_INSTALL_PREFIX:PATH=$prefix"
	TARGET_DIR="$prefix"
fi
if test -n "$ccbin"; then
	CMAKEFLAGS="$CMAKEFLAGS -DCMAKE_C_COMPILER:FILEPATH=$ccbin"
fi
if test -n "$cxxbin"; then
	CMAKEFLAGS="$CMAKEFLAGS -DCMAKE_CXX_COMPILER:FILEPATH=$cxxbin"
fi

COMMAND="mkdir -p $buildDIR && cd $buildDIR && echo $PARAMETERS > configure.log ; rm CMakeCache.txt 2>/dev/null; cmake $CMAKEFLAGS \"$SRCDIR\""

if [[ "$VERBOSE" == "YES" ]] ; then
	echo "Your current configure options translate more or less to:"
	echo "$COMMAND"
	exit 0
else
	eval "$COMMAND"
	ERROR="$?"
	if [[ "$ERROR" != 0 ]] ; then
		echo "An error occurred during the configuration, aborting!"
		exit 1
	fi
fi

echo
echo "To compile run:"
echo "  cd $buildDIR"
echo "  make"
echo "To run tests run:"
echo "  make test"
echo "To generate documentation:"
echo "  make doc"