# $Id$
# meson config tools

SDEPEND="${SDEPEND}
	>= dev-util/meson-0.43
	>= dev-util/ninja-1.8"

# enables features like --enable-blah with make
meson_enable()
{
	local feature="$1"
	local option="$2"
	[[ -z ${option} ]] && option="true"

	echo "-Denable-${feature}=${option}"
}

# disables features like --disable-blah with make
meson_disable()
{
	local feature="$1"
	echo "-Denable-${feature}=false"
}

# enables features like --with-blah with make
meson_with()
{
	local feature="$1"
	local option="$2"
	[[ -z ${option} ]] && option="true"

	echo "-Dwith-${feature}=${option}"
}

# enables features like --with-blah with make
meson_without()
{
	local feature="$1"
	echo "-Dwith-${feature}=false"
}

meson_bool_true()
{
	local feature="$1"
	meson_opt "${feature}" "true"
}

meson_bool_false()
{
	local feature="$1"
	meson_opt "${feature}" "false"
}

# generic meson opts
meson_opt()
{
	local feature="$1"
	local option="$2"
	echo "-D${feature}=${option}"
}

meson_src_prepare()
{
	munpack ${SRCFILE} || die
}

meson_configure()
{
	local configure_opts="$@"
	local default_opts
	[[ -n ${MESON_SRCDIR} ]] || local MESON_SRCDIR
	[[ -n ${MESON_BUILDDIR} ]] || local MESON_BUILDDIR

	default_opts+=" --buildtype=release"
	default_opts+=" --prefix=/usr"
	default_opts+=" --sysconfdir=/etc"
	default_opts+=" --localstatedir=/var/lib"

	if [[ ${MULTILIB_BUILD} = true ]]
	then
		# must be escaped so the mlibdir variable gets evaluated later
		default_opts+=' --libdir=/usr/$(mlibdir)'
		default_opts+=' --libexecdir=/usr/$(mlibdir)/${PNAME}'
		: ${MESON_SRCDIR="${SRCDIR}-$(mabi)/${SRCSUBDIR}"}
		: ${MESON_BUILDDIR="${BUILDDIR}/build-$(mabi)"}
		all-abis meson setup ${default_opts} ${configure_opts} ${MESON_SRCDIR} ${MESON_BUILDDIR} || die
	else
		# the mlibdir variable gets right now evaluated
		default_opts+=" --libdir=/usr/$(mlibdir)"
		default_opts+=" --libexecdir=/usr/$(mlibdir)/${PNAME}"
		: ${MESON_SRCDIR="${SRCDIR}/${SRCSUBDIR}"}
		: ${MESON_BUILDDIR="${BUILDDIR}/build"}
		meson setup ${default_opts} ${configure_opts} ${MESON_SRCDIR} ${MESON_BUILDDIR} || die
	fi
}

mninja()
{
	local abi
	local abis_to_run="${MULTILIB_ABIS}"
	[[ -n ${MESON_SRCDIR} ]] || local MESON_SRCDIR
	[[ -n ${MESON_BUILDDIR} ]] || local MESON_BUILDDIR

	# respect MULTILIB_ONLY_ABI variable
	[[ ! -z ${MULTILIB_ONLY_ABI} ]] && abis_to_run="${MULTILIB_ONLY_ABI}"

	if [[ ${MULTILIB_BUILD} = true ]]
	then
		for abi in ${abis_to_run}
		do
			echo -e "${COLBLUE}*** ${COLGREEN}running ninja for ABI -${abi}${COLDEFAULT}"
			: ${MESON_SRCDIR="${SRCDIR}-$(mabi)/${SRCSUBDIR}"}
			: ${MESON_BUILDDIR="${BUILDDIR}/build-$(mabi)"}
			abi-${abi} ninja -C ${MESON_SRCDIR} -C ${MESON_BUILDDIR} -v ${MAKEOPTS} "$@"
		done
	else
		: ${MESON_SRCDIR="${SRCDIR}/${SRCSUBDIR}"}
		: ${MESON_BUILDDIR="${BUILDDIR}/build"}
		ninja -C ${MESON_SRCDIR} -C ${MESON_BUILDDIR} -v ${MAKEOPTS} "$@"
	fi
}

meson_setup_builddir()
{
	local abi
	local abis_to_run="${MULTILIB_ABIS}"
	[[ -n ${MESON_BUILDDIR} ]] || local MESON_BUILDDIR

	# respect MULTILIB_ONLY_ABI variable
	[[ ! -z ${MULTILIB_ONLY_ABI} ]] && abis_to_run="${MULTILIB_ONLY_ABI}"

	if [[ ${MULTILIB_BUILD} = true ]]
	then
		for abi in ${abis_to_run}
		do
			echo -e "${COLBLUE}*** ${COLGREEN}running ninja for ABI -${abi}${COLDEFAULT}"
			: ${MESON_BUILDDIR="${BUILDDIR}/build-$(mabi)"}
			abi-${abi} install -d ${MESON_BUILDDIR} || die
		done
	else
		: ${MESON_BUILDDIR="${BUILDDIR}/build"}
		install -d ${MESON_BUILDDIR} || die
	fi
}

meson_src_compile()
{
	[[ -n ${MESON_SRCDIR} ]] || local MESON_SRCDIR

	if [[ ${MULTILIB_BUILD} != true ]]
	then
		: ${MESON_SRCDIR="${SRCDIR}"}
		cd ${MESON_SRCDIR}
	fi

	meson_setup_builddir || die
	meson_configure "$@" || die
	mninja || die
}

meson_src_check()
{
	[[ -n ${MESON_BUILDDIR} ]] || local MESON_BUILDDIR

	: ${MESON_BUILDDIR="${BUILDDIR}/build"}
	meson test -C ${MESON_BUILDDIR} || die
}

meson_multilib_src_check()
{
	local abi
	local abis_to_run="${MULTILIB_ABIS}"
	[[ -n ${MESON_BUILDDIR} ]] || local MESON_BUILDDIR

	# respect MULTILIB_ONLY_ABI variable
	[[ ! -z ${MULTILIB_ONLY_ABI} ]] && abis_to_run="${MULTILIB_ONLY_ABI}"
	for abi in ${abis_to_run}
	do
		: ${MESON_BUILDDIR="${BUILDDIR}/build-$(mabi)"}
		abi-${abi} meson test -C ${MESON_BUILDDIR} || die
	done
}

meson_src_install()
{
	[[ -n ${MESON_SRCDIR} ]] || local MESON_SRCDIR

	: ${MESON_SRCDIR="${SRCDIR}"}

	DESTDIR=${BINDIR} mninja install || die

	cd ${MESON_SRCDIR}
	local i
	for i in ABOUT-NLS AUTHORS BUGS CHANGES ChangeLog COPYING \
		FAQ LICENSE NEWS README TODO
	do
		if [ -f ${MESON_SRCDIR}/${i} ]
		then
			minstalldocs ${i} || die
		fi
	done
}

meson_multilib_src_install()
{
	local abi
	local abis_to_run="${MULTILIB_ABIS}"
	[[ -n ${MESON_SRCDIR} ]] || local MESON_SRCDIR

	DESTDIR=${BINDIR} mninja install || die

	# respect MULTILIB_ONLY_ABI variable
	[[ ! -z ${MULTILIB_ONLY_ABI} ]] && abis_to_run="${MULTILIB_ONLY_ABI}"
	for abi in ${abis_to_run}
	do
		: ${MESON_SRCDIR="${SRCDIR}-${abi}"}

		cd ${MESON_SRCDIR}
		local i
		for i in ABOUT-NLS AUTHORS BUGS CHANGES ChangeLog COPYING \
			FAQ LICENSE NEWS README TODO
		do
			if [ -f ${MESON_SRCDIR}/${i} ]
			then
				minstalldocs ${i} || die
			fi
		done
	done
}

export_inherits meson src_prepare src_compile
if [[ ${MULTILIB_BUILD} = true ]]
then
	export_inherits meson_multilib src_check src_install
else
	export_inherits meson src_check src_install
fi