configure

#!/bin/bash

function usage
{
    echo "usage: ./configure [options]"
    echo "options:"
    echo "-DINSTALLDIR_LEMONADE=/path/to/install/LeMonADE/"
    echo "-DBUILDDIR=/path/to/build/LeMonADE/"
    echo "-DLEMONADE_TESTS=ON/OFF"
    echo "-DCMAKE_BUILD_TYPE=Release/Debug"
    echo "default build directory is ./build"
    echo "default install directory is /usr/local"
    echo "default option for tests is OFF"
    echo "default option for build type is Release"
}

#default values for build directory and install prefix
PWD_PATH=$(pwd)
BUILDDIR="build"
#INSTALLDIR_OPTION="-DINSTALLDIR_LEMONADE=/usr/local"
#TEST_ARGUMENT="-DLEMONADE_TESTS=OFF"
CMAKE_ARGUMENTS=""

#parse command line arguments
for arg in "$@"; do
    case $arg in
        -h | --help)
            usage         
            exit
            ;;
            
	-DINSTALLDIR_LEMONADE=*)	       	
			CMAKE_ARGUMENTS+=${arg}" "
			INSTALLDIR=${arg#*=}
			echo "Install directory set to "$INSTALLDIR
			;;
				
	-DBUILDDIR=*)           
			BUILDDIR=${arg#*=}
			echo "Build directory set to "$BUILDDIR
			;;

	-DLEMONADE_TESTS=*)
			CMAKE_ARGUMENTS+=${arg}" "
			TESTOPTION=${arg#*=}
			echo "Compiling tests set to "$TESTOPTION
			;;
			
	-DCMAKE_BUILD_TYPE=*)
			CMAKE_ARGUMENTS+=${arg}" "
			BUILDOPTION=${arg#*=}
			echo "Build type set to "$BUILDOPTION
			;;

	* )                     		
			echo "unknown parameter"
			usage         
			exit


    esac
    shift           # shift the found arg away.
done

#create build directory if it does not exist
if [ ! -d $BUILDDIR ]; then
    mkdir -p $BUILDDIR
fi

echo "Arguments passed to cmake are "${CMAKE_ARGUMENTS}

(cd $BUILDDIR >/dev/null 2>&1 && cmake $CMAKE_ARGUMENTS $PWD_PATH)

########### set up the wrapper makefile ##################

cat > ./Makefile <<EOF

##############################################################
#               CMake Project Wrapper Makefile               #
############################################################## 

SHELL := /bin/bash
RM    := rm -r

all: ./${BUILDDIR}/Makefile
	@ \$(MAKE) -C ${BUILDDIR}
.PHONY: all

./${BUILDDIR}/Makefile:
	@ (cd ${BUILDDIR} >/dev/null 2>&1 && cmake ${CMAKE_ARGUMENTS} ${PWD_PATH})

clean:
	@- \$(MAKE) --silent -C ${BUILDDIR} clean || true
.PHONY: clean

install:
	@ \$(MAKE) -C ${BUILDDIR} install 
.PHONY: install

docs:
	@  \$(MAKE) -C ${BUILDDIR} docs
.PHONY : docs

EOF