# Provide support for CMake based projects
#
# Feature:		cmake
# Usage:		USES=cmake or USES=cmake:ARGS
# Valid ARGS:		indirect, insource, noninja, run, testing
# ARGS description:
# indirect		do not run cmake for configure step, only add build dependency.
#			This should be set only for ports which use other build systems,
#			e.g. pep517 or meson, but rely internally on cmake.
# insource		do not perform an out-of-source build
# noninja		do not use ninja instead of make
#			Setting this should be an exception, and hints to an issue
#			inside the ports build system.
#			A few corner cases never use ninja, and are handled, to reduce
#			the usage of 'noninja'.:
#				1) fortran ports
#				2) ports that set BUILD_- or INSTALL_WRKSRC to
#				   something different than CONFIGURE_WRKSRC
# run			add a runtime dependency on cmake
# testing		add the test target based on ctest
#			Additionally, CMAKE_TESTING_ON, CMAKE_TESTING_OFF, CMAKE_TESTING_ARGS, CMAKE_TESTING_TARGET
#			can be defined to override the default values.
# _internal		Not to be used by any other ports than the ones created from the release-tarball of cmake
#
#
# Additional variables that affect cmake behaviour:
#
# User defined variables:
# CMAKE_NOCOLOR		- Disable colour build output
#			Default: not set, unless BATCH or PACKAGE_BUILDING is defined
#
# Variables for ports:
# CMAKE_ON		Appends -D<var>:bool=ON  to the CMAKE_ARGS,
# CMAKE_OFF		Appends -D<var>:bool=OFF to the CMAKE_ARGS.
# CMAKE_ARGS		- Arguments passed to cmake
#			Default: see below
# Variables for ports which use cmake for configure
# CMAKE_BUILD_TYPE	- Type of build (cmake predefined build types).
#			Projects may have their own build profiles.
#			CMake supports the following types: Debug,
#			Release, RelWithDebInfo and MinSizeRel.
#			Debug and Release profiles respect system
#			CFLAGS, RelWithDebInfo and MinSizeRel will set
#			CFLAGS to "-O2 -g" and "-Os -DNDEBUG".
#			Default: Release, if neither WITH_DEBUG nor WITH_DEBUGINFO is set,
#			RelWithDebInfo, if WITH_DEBUGINFO is set,
#			Debug, if WITH_DEBUG is set.
# CMAKE_SOURCE_PATH	- Path to the source directory
#			Default: ${WRKSRC}
# Variables for ports which use cmake for testing
# CMAKE_TESTING_ARGS	- Additional arguments passed to cmake on test target.
# CMAKE_TESTING_ON	Appends -D<var>:bool=ON  to the CMAKE_TESTING_ARGS.
#			Default: BUILD_TESTING
# CMAKE_TESTING_OFF	Appends -D<var>:bool=OFF to the CMAKE_TESTING_ARGS.
#			Default: empty
# CMAKE_TESTING_TARGET	- Name of the test target. Default: test
#
# MAINTAINER: kde@FreeBSD.org

.if !defined(_INCLUDE_USES_CMAKE_MK)
_INCLUDE_USES_CMAKE_MK=	yes

_valid_ARGS=		indirect insource noninja run testing _internal

_CMAKE_VERSION=		3.29.6
CMAKE_BIN=		${LOCALBASE}/bin/cmake

# Sanity check
.  for arg in ${cmake_ARGS}
.    if empty(_valid_ARGS:M${arg})
IGNORE=	Incorrect 'USES+= cmake:${cmake_ARGS}' usage: argument [${arg}] is not recognized
.    endif
.  endfor

.  if !empty(cmake_ARGS:M_internal)
# _internal is intended only for devel/cmake-core
MASTER_SITES?=	https://github.com/Kitware/CMake/releases/download/v${DISTVERSION}/ \
		https://www.cmake.org/files/v${DISTVERSION}/
.  else
BUILD_DEPENDS+=		${CMAKE_BIN}:devel/cmake-core

.    if !empty(cmake_ARGS:Mrun)
RUN_DEPENDS+=		${CMAKE_BIN}:devel/cmake-core
.    endif

.    if defined(WITH_DEBUG)
CMAKE_BUILD_TYPE?=	Debug
.    elif defined(WITH_DEBUGINFO)
CMAKE_BUILD_TYPE?=	RelWithDebInfo
.    else
CMAKE_BUILD_TYPE?=	Release
.    endif #defined(WITH_DEBUG)

CMAKE_ARGS+=		-DCMAKE_C_COMPILER:STRING="${CC}" \
			-DCMAKE_CXX_COMPILER:STRING="${CXX}" \
			-DCMAKE_C_FLAGS:STRING="${CFLAGS}" \
			-DCMAKE_C_FLAGS_DEBUG:STRING="${CFLAGS}" \
			-DCMAKE_C_FLAGS_RELEASE:STRING="${CFLAGS} -DNDEBUG" \
			-DCMAKE_CXX_FLAGS:STRING="${CXXFLAGS}" \
			-DCMAKE_CXX_FLAGS_DEBUG:STRING="${CXXFLAGS}" \
			-DCMAKE_CXX_FLAGS_RELEASE:STRING="${CXXFLAGS} -DNDEBUG" \
			-DCMAKE_EXE_LINKER_FLAGS:STRING="${LDFLAGS}" \
			-DCMAKE_MODULE_LINKER_FLAGS:STRING="${LDFLAGS}" \
			-DCMAKE_SHARED_LINKER_FLAGS:STRING="${LDFLAGS}" \
			-DCMAKE_INSTALL_PREFIX:PATH="${CMAKE_INSTALL_PREFIX}" \
			-DCMAKE_AUTOGEN_PARALLEL:STRING="${MAKE_JOBS_NUMBER}" \
			-DCMAKE_BUILD_TYPE:STRING="${CMAKE_BUILD_TYPE}" \
			-DTHREADS_HAVE_PTHREAD_ARG:BOOL=YES \
			-DCMAKE_INSTALL_RPATH_USE_LINK_PATH=YES \
			-DCMAKE_VERBOSE_MAKEFILE:BOOL=ON \
			-DFETCHCONTENT_FULLY_DISCONNECTED:BOOL=ON

# Handle the option-like CMAKE_ON and CMAKE_OFF lists.
.    for _bool_kind in ON OFF
.      if defined(CMAKE_${_bool_kind})
CMAKE_ARGS+=		${CMAKE_${_bool_kind}:C/.*/-D&:BOOL=${_bool_kind}/}
.      endif
.    endfor

CMAKE_INSTALL_PREFIX?=	${PREFIX}

.    if defined(BATCH) || defined(PACKAGE_BUILDING)
CMAKE_NOCOLOR=		yes
.    endif

.    if defined(CMAKE_NOCOLOR)
CMAKE_ARGS+=		-DCMAKE_COLOR_MAKEFILE:BOOL=OFF
.    endif
.  endif

.  if empty(cmake_ARGS:Mindirect)
.    if defined(STRIP) && ${STRIP} != "" && !defined(WITH_DEBUG) && !defined(WITH_DEBUGINFO)
INSTALL_TARGET?=	install/strip
.    endif
.  endif

# Use cmake for configure stage and for testing
.  if empty(cmake_ARGS:M_internal) && empty(cmake_ARGS:Mindirect)
PLIST_SUB+=		CMAKE_BUILD_TYPE="${CMAKE_BUILD_TYPE:tl}"

_CMAKE_MSG=		"===>  Performing in-source build"
CMAKE_SOURCE_PATH?=	${WRKSRC}

.    if empty(cmake_ARGS:Minsource)
_CMAKE_MSG=		"===>  Performing out-of-source build"
CONFIGURE_WRKSRC=	${WRKDIR}/.build
BUILD_WRKSRC?=		${CONFIGURE_WRKSRC}
INSTALL_WRKSRC?=	${CONFIGURE_WRKSRC}
TEST_WRKSRC?=		${CONFIGURE_WRKSRC}
.    endif

# By default we use the ninja generator.
#  Except, if cmake:run is set (cmake not wanted as generator)
#             fortran is used, as the ninja-generator does not handle it.
#             or if CONFIGURE_WRKSRC does not match  BUILD_WRKSRC or INSTALL_WRKSRC
#             as the build.ninja file won't be where ninja expects it.
.    if empty(cmake_ARGS:Mnoninja) && empty(cmake_ARGS:Mrun) && empty(USES:Mfortran)
.      if "${CONFIGURE_WRKSRC}" == "${BUILD_WRKSRC}" && "${CONFIGURE_WRKSRC}" == "${INSTALL_WRKSRC}"
# USES=gmake sets MAKE_CMD and ninja.mk does too (it also messes with MAKEFILE and MAKE_CMD).
.        if ! empty(USES:Mgmake)
BROKEN=		USES=gmake is incompatible with cmake's ninja-generator (try cmake:noninja)
.        endif
# USES=emacs appends EMACS=<path> to MAKE_ARGS, which then get passed to ninja.
# Since ninja doesn't support that kind of variable-setting on the command-line,
# it errors out.
.        if ! empty(USES:Memacs)
BROKEN=		USES=emacs is incompatible with cmake's ninja-generator (try cmake:noninja)
.        endif
.      include "${USESDIR}/ninja.mk"
.      endif
.    endif

.    if !target(do-configure)
do-configure:
	@${ECHO_MSG} ${_CMAKE_MSG}
	${MKDIR} ${CONFIGURE_WRKSRC}
	@cd ${CONFIGURE_WRKSRC}; ${SETENVI} ${WRK_ENV} ${CONFIGURE_ENV} ${CMAKE_BIN} \
		${CMAKE_ARGS} ${CMAKE_SOURCE_PATH}
.    endif

.    if !target(do-test) && ${cmake_ARGS:Mtesting}
CMAKE_TESTING_ON?=		BUILD_TESTING
CMAKE_TESTING_PARALLEL_LEVEL?=	${MAKE_JOBS_NUMBER}
CMAKE_TESTING_TARGET?=		test

# Handle the option-like CMAKE_TESTING_ON and CMAKE_TESTING_OFF lists.
.      for _bool_kind in ON OFF
.        if defined(CMAKE_TESTING_${_bool_kind})
CMAKE_TESTING_ARGS+=		${CMAKE_TESTING_${_bool_kind}:C/.*/-D&:BOOL=${_bool_kind}/}
.        endif
.      endfor

do-test:
	@cd ${BUILD_WRKSRC} && \
		${SETENVI} ${WRK_ENV} ${CONFIGURE_ENV} ${CMAKE_BIN} ${CMAKE_ARGS} ${CMAKE_TESTING_ARGS} ${CMAKE_SOURCE_PATH} && \
		${SETENVI} ${WRK_ENV} ${MAKE_ENV} ${MAKE_CMD} ${_MAKE_JOBS} ${MAKE_ARGS} ${ALL_TARGET} && \
		${SETENVI} ${WRK_ENV} ${TEST_ENV} CTEST_PARALLEL_LEVEL=${CMAKE_TESTING_PARALLEL_LEVEL} ${MAKE_CMD} ${MAKE_ARGS} ${CMAKE_TESTING_TARGET}
.    endif
.  endif

.endif #!defined(_INCLUDE_USES_CMAKE_MK)