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# Copyright 1999-2019 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

# @ECLASS: kde5.eclass
# @MAINTAINER:
# kde@gentoo.org
# @SUPPORTED_EAPIS: 7
# @BLURB: Support eclass for packages that follow KDE packaging conventions.
# @DESCRIPTION:
# This eclass is intended to streamline the creation of ebuilds for packages
# that follow KDE upstream packaging conventions. It's primarily intended for
# the three upstream release groups (Frameworks, Plasma, Applications) but
# is also for any package that follows similar conventions.
#
# This eclass unconditionally inherits kde5-functions.eclass and all its public
# functions and variables may be considered as part of this eclass's API.
#
# This eclass unconditionally inherits cmake-utils.eclass and all its public
# variables and helper functions (not phase functions) may be considered as part
# of this eclass's API.
#
# This eclass's phase functions are not intended to be mixed and matched, so if
# any phase functions are overridden the version here should also be called.

if [[ -z ${_KDE5_ECLASS} ]]; then
_KDE5_ECLASS=1

# Propagate KMNAME to kde.org.eclass
# PORTING: Use KDE_ORG_NAME from kde.org.eclass instead
if [[ -z ${KDE_ORG_NAME} ]]; then
	KDE_ORG_NAME=${KMNAME:=$PN}
fi

# @ECLASS-VARIABLE: VIRTUALX_REQUIRED
# @DESCRIPTION:
# For proper description see virtualx.eclass manpage.
# Here we redefine default value to be manual, if your package needs virtualx
# for tests you should proceed with setting VIRTUALX_REQUIRED=test.
: ${VIRTUALX_REQUIRED:=manual}

inherit cmake-utils flag-o-matic kde.org kde5-functions virtualx xdg

if [[ -v KDE_GCC_MINIMAL ]]; then
	EXPORT_FUNCTIONS pkg_pretend
fi

EXPORT_FUNCTIONS pkg_setup src_prepare src_configure src_compile src_test src_install pkg_preinst pkg_postinst pkg_postrm

# @ECLASS-VARIABLE: ECM_KDEINSTALLDIRS
# @DESCRIPTION:
# If set to "false", do nothing.
# For any other value, assume the package is using KDEInstallDirs macro and switch
# KDE_INSTALL_USE_QT_SYS_PATHS to ON.
: ${ECM_KDEINSTALLDIRS:=true}

# @ECLASS-VARIABLE: KDE_AUTODEPS
# @DESCRIPTION:
# If set to "false", do nothing.
# For any other value, add dependencies on dev-qt/qtcore:5, kde-frameworks/kf-env
# and kde-frameworks/extra-cmake-modules:5. Additionally, required blockers may
# be set depending on the value of CATEGORY.
: ${KDE_AUTODEPS:=true}

# @ECLASS-VARIABLE: KDE_DEBUG
# @DESCRIPTION:
# If set to "false", add -DNDEBUG (via cmake-utils_src_configure) and -DQT_NO_DEBUG
# to CPPFLAGS.
# Otherwise, add debug to IUSE.
: ${KDE_DEBUG:=true}

# @ECLASS-VARIABLE: KDE_DESIGNERPLUGIN
# @DESCRIPTION:
# If set to "false", do nothing.
# Otherwise, add "designer" to IUSE to toggle build of designer plugins
# and add the necessary DEPENDs.
: ${KDE_DESIGNERPLUGIN:=false}

# @ECLASS-VARIABLE: KDE_EXAMPLES
# @DESCRIPTION:
# If set to "false", unconditionally ignore a top-level examples subdirectory.
# Otherwise, add "examples" to IUSE to toggle adding that subdirectory.
: ${KDE_EXAMPLES:=false}

# @ECLASS-VARIABLE: KDE_HANDBOOK
# @DESCRIPTION:
# If set to "false", do nothing.
# Otherwise, add "+handbook" to IUSE, add the appropriate dependency, and
# generate and install KDE handbook.
# If set to "optional", config with -DCMAKE_DISABLE_FIND_PACKAGE_KF5DocTools=ON
# when USE=!handbook. In case package requires KF5KDELibs4Support, see next:
# If set to "forceoptional", remove a KF5DocTools dependency from the root
# CMakeLists.txt in addition to the above.
: ${KDE_HANDBOOK:=false}

# @ECLASS-VARIABLE: KDE_DOC_DIR
# @DESCRIPTION:
# Specifies the location of the KDE handbook if not the default.
: ${KDE_DOC_DIR:=doc}

# @ECLASS-VARIABLE: KDE_PO_DIRS
# @DESCRIPTION:
# Specifies the possible locations of KDE l10n files if not the default.
: ${KDE_PO_DIRS:="po poqm"}

# @ECLASS-VARIABLE: KDE_QTHELP
# @DESCRIPTION:
# If set to "false", do nothing.
# Otherwise, add "doc" to IUSE, add the appropriate dependency, generate
# and install Qt compressed help files with -DBUILD_QCH=ON when USE=doc.
if [[ ${CATEGORY} = kde-frameworks ]]; then
	: ${KDE_QTHELP:=true}
fi
: ${KDE_QTHELP:=false}

# @ECLASS-VARIABLE: KDE_TEST
# @DESCRIPTION:
# If set to "false", do nothing.
# For any other value, add test to IUSE and add a dependency on dev-qt/qttest:5.
# If set to "optional", configure with -DCMAKE_DISABLE_FIND_PACKAGE_Qt5Test=ON
# when USE=!test.
# If set to "forceoptional", remove a Qt5Test dependency and comment test
# subdirs from the root CMakeLists.txt in addition to the above.
# If set to "forceoptional-recursive", remove Qt5Test dependencies and make
# autotest(s), unittest(s) and test(s) subdirs from *any* CMakeLists.txt in ${S}
# and below conditional on BUILD_TESTING. This is always meant as a short-term
# fix and creates ${T}/${P}-tests-optional.patch to refine and submit upstream.
if [[ ${CATEGORY} = kde-frameworks ]]; then
	: ${KDE_TEST:=true}
fi
: ${KDE_TEST:=false}

# @ECLASS-VARIABLE: KDE_SUBSLOT
# @DESCRIPTION:
# If set to "false", do nothing.
# If set to "true", add a subslot to the package, where subslot is either
# defined as major.minor version for kde-*/ categories or ${PV} if other.
# For any other value, that value will be used as subslot.
# PORTING: no replacement, define in ebuild
: ${KDE_SUBSLOT:=false}

# PORTING: LICENSE no longer set by eclass, define in ebuild
LICENSE="GPL-2"
# PORTING: SLOT no longer set by eclass except for kde-frameworks
[[ ${CATEGORY} = kde-frameworks ]] || SLOT=5

case ${KDE_SUBSLOT} in
	false)  ;;
	true)
		case ${CATEGORY} in
			kde-frameworks | \
			kde-plasma | \
			kde-apps)
				SLOT+="/$(ver_cut 1-2)"
				;;
			*)
				SLOT+="/${PV}"
				;;
		esac
		;;
	*)
		SLOT+="/${KDE_SUBSLOT}"
		;;
esac

case ${KDE_AUTODEPS} in
	false)	;;
	*)
		BDEPEND+=" $(add_frameworks_dep extra-cmake-modules)"
		RDEPEND+=" >=kde-frameworks/kf-env-4"
		COMMONDEPEND+=" $(add_qt_dep qtcore)"

		# all packages need breeze/oxygen icons for basic iconset, bug #564838
		if [[ ${PN} != breeze-icons && ${PN} != oxygen-icons ]]; then
			RDEPEND+=" || ( $(add_frameworks_dep breeze-icons) kde-frameworks/oxygen-icons:* )"
		fi
		;;
esac

case ${KDE_DEBUG} in
	false)	;;
	*)
		IUSE+=" debug"
		;;
esac

case ${KDE_DESIGNERPLUGIN} in
	false)  ;;
	*)
		IUSE+=" designer"
		if [[ ${CATEGORY} = kde-apps && ${PV} = 19.0[48]* ]]; then
			BDEPEND+=" designer? ( $(add_frameworks_dep kdesignerplugin) )"
		else
			BDEPEND+=" designer? ( $(add_qt_dep designer) )"
		fi
esac

case ${KDE_EXAMPLES} in
	false)  ;;
	*)
		IUSE+=" examples"
		;;
esac

case ${KDE_HANDBOOK} in
	false)	;;
	*)
		IUSE+=" +handbook"
		BDEPEND+=" handbook? ( $(add_frameworks_dep kdoctools) )"
		;;
esac

case ${KDE_QTHELP} in
	false)	;;
	*)
		IUSE+=" doc"
		COMMONDEPEND+=" doc? ( $(add_qt_dep qt-docs) )"
		BDEPEND+=" doc? (
			$(add_qt_dep qthelp)
			>=app-doc/doxygen-1.8.13-r1
		)"
		;;
esac

case ${KDE_TEST} in
	false)	;;
	*)
		IUSE+=" test"
		DEPEND+=" test? ( $(add_qt_dep qttest) )"
		;;
esac

DEPEND+=" ${COMMONDEPEND}"
RDEPEND+=" ${COMMONDEPEND}"
unset COMMONDEPEND

# @FUNCTION: kde5_pkg_pretend
# @DESCRIPTION:
# Checks if the active compiler meets the minimum version requirements.
# phase function is only exported if KDE_GCC_MINIMAL is defined.
kde5_pkg_pretend() {
	debug-print-function ${FUNCNAME} "$@"
	_check_gcc_version
}

# @FUNCTION: kde5_pkg_setup
# @DESCRIPTION:
# Checks if the active compiler meets the minimum version requirements.
kde5_pkg_setup() {
	debug-print-function ${FUNCNAME} "$@"
	_check_gcc_version
}

# @FUNCTION: kde5_src_unpack
# @DESCRIPTION:
# Unpack the sources, automatically handling both release and live ebuilds.
kde5_src_unpack() {
	debug-print-function ${FUNCNAME} "$@"
	kde.org_src_unpack
}

# @FUNCTION: kde5_src_prepare
# @DESCRIPTION:
# Wrapper for cmake-utils_src_prepare with lots of extra logic for magic
# handling of linguas, tests, handbook etc.
kde5_src_prepare() {
	debug-print-function ${FUNCNAME} "$@"

	cmake-utils_src_prepare

	# only build examples when required
	if ! { in_iuse examples && use examples; } ; then
		cmake_comment_add_subdirectory examples
	fi

	# only enable handbook when required
	if in_iuse handbook && ! use handbook ; then
		cmake_comment_add_subdirectory ${KDE_DOC_DIR}

		if [[ ${KDE_HANDBOOK} = forceoptional ]] ; then
			punt_bogus_dep KF5 DocTools
			sed -i -e "/kdoctools_install/ s/^/#DONT/" CMakeLists.txt || die
		fi
	fi

	# drop translations when nls is not wanted
	if in_iuse nls && ! use nls ; then
		local po
		for po in ${KDE_PO_DIRS}; do
			if [[ -d ${po} ]] ; then
				rm -r ${po} || die
			fi
		done
	fi

	# enable only the requested translations when required
	# always install unconditionally for kconfigwidgets - if you use language
	# X as system language, and there is a combobox with language names, the
	# translated language name for language Y is taken from /usr/share/locale/Y/kf5_entry.desktop
	if [[ -v LINGUAS && ${PN} != kconfigwidgets ]] ; then
		local po
		for po in ${KDE_PO_DIRS}; do
		if [[ -d ${po} ]] ; then
			pushd ${po} > /dev/null || die
			local lang
			for lang in *; do
				if [[ -e ${lang} ]] && ! has ${lang/.po/} ${LINGUAS} ; then
					case ${lang} in
						cmake_modules | \
						CMakeLists.txt | \
						${PN}.pot)	;;
						*) rm -r ${lang} || die	;;
					esac
					if [[ -e CMakeLists.txt ]] ; then
						cmake_comment_add_subdirectory ${lang}
						sed -e "/add_subdirectory([[:space:]]*${lang}\/.*[[:space:]]*)/d" \
							-i CMakeLists.txt || die
					fi
				fi
			done
			popd > /dev/null || die
		fi
		done
	fi

	if [[ ${KDE_BUILD_TYPE} = release && ${CATEGORY} != kde-apps ]] ; then
		if [[ ${KDE_HANDBOOK} != false && -d ${KDE_DOC_DIR} && -v LINGUAS ]] ; then
			pushd ${KDE_DOC_DIR} > /dev/null || die
			local lang
			for lang in *; do
				if ! has ${lang} ${LINGUAS} ; then
					cmake_comment_add_subdirectory ${lang}
				fi
			done
			popd > /dev/null || die
		fi
	fi

	# only build unit tests when required
	if ! { in_iuse test && use test; } ; then
		if [[ ${KDE_TEST} = forceoptional ]] ; then
			punt_bogus_dep Qt5 Test
			# if forceoptional, also cover non-kde categories
			cmake_comment_add_subdirectory autotests test tests
		elif [[ ${KDE_TEST} = forceoptional-recursive ]] ; then
			punt_bogus_dep Qt5 Test
			local f pf="${T}/${P}"-tests-optional.patch
			touch ${pf} || die "Failed to touch patch file"
			for f in $(find . -type f -name "CMakeLists.txt" -exec \
				grep -l "^\s*add_subdirectory\s*\(\s*.*\(auto|unit\)\?tests\?\s*)\s*\)" {} \;); do
				cp ${f} ${f}.old || die "Failed to prepare patch origfile"
				pushd ${f%/*} > /dev/null || die
					punt_bogus_dep Qt5 Test
					sed -i CMakeLists.txt -e \
						"/^#/! s/add_subdirectory\s*\(\s*.*\(auto|unit\)\?tests\?\s*)\s*\)/if(BUILD_TESTING)\n&\nendif()/" \
						|| die
				popd > /dev/null || die
				diff -Naur ${f}.old ${f} 1>>${pf}
				rm ${f}.old || die "Failed to clean up"
			done
			einfo "Build system was modified by KDE_TEST=forceoptional-recursive."
			einfo "Unified diff file ready for pickup in:"
			einfo "  ${pf}"
			einfo "Push it upstream to make this message go away."
		elif [[ ${CATEGORY} = kde-frameworks || ${CATEGORY} = kde-plasma || ${CATEGORY} = kde-apps ]] ; then
			cmake_comment_add_subdirectory autotests test tests
		fi
	fi

	# in frameworks, tests = manual tests so never build them
	if [[ ${CATEGORY} = kde-frameworks ]] && [[ ${PN} != extra-cmake-modules ]]; then
		cmake_comment_add_subdirectory tests
	fi
}

# @FUNCTION: kde5_src_configure
# @DESCRIPTION:
# Wrapper for cmake-utils_src_configure with extra logic for magic handling of
# handbook, tests etc.
kde5_src_configure() {
	debug-print-function ${FUNCNAME} "$@"

	# we rely on cmake-utils.eclass to append -DNDEBUG too
	if in_iuse debug && ! use debug; then
		append-cppflags -DQT_NO_DEBUG
	fi

	local cmakeargs

	if in_iuse test && ! use test ; then
		cmakeargs+=( -DBUILD_TESTING=OFF )

		if [[ ${KDE_TEST} = optional ]] ; then
			cmakeargs+=( -DCMAKE_DISABLE_FIND_PACKAGE_Qt5Test=ON )
		fi
	fi

	if in_iuse handbook && ! use handbook && [[ ${KDE_HANDBOOK} = optional ]] ; then
		cmakeargs+=( -DCMAKE_DISABLE_FIND_PACKAGE_KF5DocTools=ON )
	fi

	if in_iuse designer && [[ ${KDE_DESIGNERPLUGIN} != false ]] ; then
		if [[ ${CATEGORY} = kde-frameworks ]]; then
			cmakeargs+=( -DBUILD_DESIGNERPLUGIN=$(usex designer) )
		else
			cmakeargs+=( $(cmake-utils_use_find_package designer KF5DesignerPlugin) )
		fi
	fi

	if [[ ${KDE_QTHELP} != false ]]; then
		cmakeargs+=( -DBUILD_QCH=$(usex doc) )
	fi

	if [[ ${ECM_KDEINSTALLDIRS} != false ]] ; then
		cmakeargs+=(
			# install mkspecs in the same directory as qt stuff
			-DKDE_INSTALL_USE_QT_SYS_PATHS=ON
			# move handbook outside of doc dir, bug 667138
			-DKDE_INSTALL_DOCBUNDLEDIR="${EPREFIX}/usr/share/help"
		)
	fi

	# allow the ebuild to override what we set here
	mycmakeargs=("${cmakeargs[@]}" "${mycmakeargs[@]}")

	cmake-utils_src_configure
}

# @FUNCTION: kde5_src_compile
# @DESCRIPTION:
# Wrapper for cmake-utils_src_compile. Currently doesn't do anything extra, but
# is included as part of the API just in case it's needed in the future.
kde5_src_compile() {
	debug-print-function ${FUNCNAME} "$@"

	cmake-utils_src_compile "$@"
}

# @FUNCTION: kde5_src_test
# @DESCRIPTION:
# Wrapper for cmake-utils_src_test with extra logic for magic handling of dbus
# and virtualx.
kde5_src_test() {
	debug-print-function ${FUNCNAME} "$@"

	_test_runner() {
		if [[ -n "${VIRTUALDBUS_TEST}" ]]; then
			export $(dbus-launch)
		fi

		cmake-utils_src_test
	}

	# When run as normal user during ebuild development with the ebuild command, the
	# kde tests tend to access the session DBUS. This however is not possible in a real
	# emerge or on the tinderbox.
	# > make sure it does not happen, so bad tests can be recognized and disabled
	unset DBUS_SESSION_BUS_ADDRESS DBUS_SESSION_BUS_PID

	if [[ ${VIRTUALX_REQUIRED} = always || ${VIRTUALX_REQUIRED} = test ]]; then
		virtx _test_runner
	else
		_test_runner
	fi

	if [[ -n "${DBUS_SESSION_BUS_PID}" ]] ; then
		kill ${DBUS_SESSION_BUS_PID}
	fi
}

# @FUNCTION: kde5_src_install
# @DESCRIPTION:
# Wrapper for cmake-utils_src_install. Currently doesn't do anything extra.
kde5_src_install() {
	debug-print-function ${FUNCNAME} "$@"

	cmake-utils_src_install
}

# @FUNCTION: kde5_pkg_preinst
# @DESCRIPTION:
# Sets up environment variables required in kde5_pkg_postinst.
kde5_pkg_preinst() {
	debug-print-function ${FUNCNAME} "$@"

	xdg_pkg_preinst
}

# @FUNCTION: kde5_pkg_postinst
# @DESCRIPTION:
# Updates the various XDG caches (icon, desktop, mime) if necessary.
kde5_pkg_postinst() {
	debug-print-function ${FUNCNAME} "$@"

	xdg_pkg_postinst

	if [[ -z ${I_KNOW_WHAT_I_AM_DOING} ]]; then
		if [[ ${KDE_BUILD_TYPE} = live ]]; then
			echo
			einfo "WARNING! This is an experimental live ebuild of ${CATEGORY}/${PN}"
			einfo "Use it at your own risk."
			einfo "Do _NOT_ file bugs at bugs.gentoo.org because of this ebuild!"
		fi
	fi
}

# @FUNCTION: kde5_pkg_postrm
# @DESCRIPTION:
# Updates the various XDG caches (icon, desktop, mime) if necessary.
kde5_pkg_postrm() {
	debug-print-function ${FUNCNAME} "$@"

	xdg_pkg_postrm
}

fi