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# Copyright 2007-2008 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/eclass/kde4-base.eclass,v 1.1 2008/01/16 22:50:46 ingmar Exp $

# @ECLASS: kde4-base.eclass
# @MAINTAINER:
# kde@gentoo.org
# @BLURB: This eclass provides functions for kde 4.0 ebuilds
# @DESCRIPTION:
# The kde4-base.eclass provides support for building KDE4 monolithic ebuilds
# and KDE4 applications.
#
# NOTE: This eclass uses the SLOT dependencies from EAPI="1" or compatible,
# hence you must define EAPI="1" in the ebuild, before inheriting any eclasses.

inherit base eutils multilib cmake-utils kde4-functions

EXPORT_FUNCTIONS pkg_setup src_unpack src_compile src_test src_install pkg_postinst pkg_postrm

COMMONDEPEND=">=x11-libs/qt-4.3.3:4"
DEPEND="${DEPEND} ${COMMONDEPEND}
	>=dev-util/cmake-2.4.7-r1
	dev-util/pkgconfig
	x11-libs/libXt
	x11-proto/xf86vidmodeproto"
RDEPEND="${RDEPEND} ${COMMONDEPEND}"

if has test ${IUSE//+}; then
	DEPEND="${DEPEND}
		test? ( dev-util/cppunit )"
fi

# @ECLASS-VARIABLE: NEED_KDE
# @DESCRIPTION:
# This variable sets the version of KDE4 which will be used by the eclass.
# This variable must be set by the ebuild, for all categories except for "kde-base".
# For kde-base packages, if it is not set by the ebuild,
# it's assumed that the required KDE4 version is the latest, non-live, available.
#
# @CODE
# Acceptable values are:
#	- latest - Use latest version in the portage tree
#		Default for kde-base ebuilds. Banned for ebuilds not part of kde or koffice.
#	- svn - Use svn release (live ebuilds)
#	- :SLOT - Use any version in the SLOT specified in the NEED_KDE value.
#	- VERSION_NUMBER - Use the minimum KDE4 version specified in the NEED_KDE value.
#	- VERSION_NUMBER:SLOT - Use the minimum KDE4 version and the SLOT specified in the NEED_KDE value.
#	- none - Let the ebuild handle SLOT, kde dependencies, KDEDIR, ...
# @CODE
#
# Note: There is no default NEED_KDE for ebuilds not in kde-base or part of
# koffice, so you must set it explicitly in the ebuild, in all other cases.
if [[ -z ${NEED_KDE} ]]; then
	if [[ -n ${KDEBASE} ]]; then
		NEED_KDE="latest"
	else
		die "kde4-base.eclass inherited but NEED_KDE not defined - broken ebuild"
	fi
fi
export NEED_KDE

case ${NEED_KDE} in
	latest)
		# Should only be used by 'kde-base'-ebuilds
		if [[ "${KDEBASE}" == "kde-base" ]]; then
			case ${PV} in
				3.9*)	_kdedir="3.9" ;;
				4*)		_kdedir="4.0" ;;
				*)		die "NEED_KDE=latest not supported for PV=${PV}" ;;
			esac
			_operator=">="
			_pv="-${PV}:kde-4"
		else
			_kdedir="4.0"
			_pv=":kde-4"
		fi
		;;
	svn|9999*|:kde-svn)
		_kdedir="svn"
		_pv=":kde-svn"
		export NEED_KDE="svn"
		;;
	*:kde-svn)
		_kdedir="svn"
		_operator=">="
		_pv="-${NEED_KDE}"
		export NEED_KDE="svn"
		;;
	# The ebuild handles dependencies, KDEDIR, SLOT.
	none)
		# This shouldn't be used for kde-base ebuilds.
		if [[ -n ${KDEBASE} ]]; then
			die 'Ebuilds part of kde-base ebuilds should not use NEED_KDE="none".'
		fi
		;;
	# NEED_KDE=":${SLOT}"
	:kde-4)
		_kdedir="4.0"
		_pv="${NEED_KDE}"
		;;
	# NEED_KDE="${PV}:${SLOT}"
	*:kde-4)
		_kdedir="4.0"
		_operator=">="
		_pv="-${NEED_KDE}"
		;;
	3.9*)
		_kdedir="3.9"
		_operator=">="
		_pv="-${NEED_KDE}:kde-4"
		;;
	4*)
		_kdedir="4.0"
		_operator=">="
		_pv="-${NEED_KDE}:kde-4"
		;;
	*)	die "NEED_KDE=${NEED_KDE} currently not supported."
		;;
esac

if [[ ${NEED_KDE} != none ]]; then
	KDEDIR="/usr/kde/${_kdedir}"
	KDEDIRS="/usr:/usr/local:${KDEDIR}"

	if [[ -n ${KDEBASE} ]]; then
		if [[ ${NEED_KDE} = svn ]]; then
			SLOT="kde-svn"
		else
			SLOT="kde-4"
		fi
	fi

	# We only need to add the dependencies if ${PN} is not "kdelibs" or "kdepimlibs"
	if [[ ${PN} != "kdelibs" ]]; then
		DEPEND="${DEPEND}
		${_operator}kde-base/kdelibs${_pv}"
		RDEPEND="${RDEPEND}
		${_operator}kde-base/kdelibs${_pv}"
		if [[ ${PN} != "kdepimlibs" ]]; then
			DEPEND="${DEPEND}
			${_operator}kde-base/kdepimlibs${_pv}"
			RDEPEND="${RDEPEND}
			${_operator}kde-base/kdepimlibs${_pv}"
		fi
	fi

	unset _operator _pv _kdedir
fi

# Fetch section - If the ebuild's category is not 'kde-base' and if it is not a
# koffice ebuild, the URI should be set in the ebuild itself
if [[ -n ${KDEBASE} ]]; then
	if [[ -n ${KMNAME} ]]; then
		_kmname=${KMNAME}
	else
		_kmname=${PN}
	fi
	_kmname_pv="${_kmname}-${PV}"
	if [[ ${NEED_KDE} != "svn" ]]; then
		case ${KDEBASE} in
			kde-base)
			case ${PV} in
			*)	SRC_URI="mirror://kde/stable/${PV}/src/${_kmname_pv}.tar.bz2";;
			esac
			;;
			koffice)
			SRC_URI="mirror://kde/unstable/${_kmname_pv}/src/${_kmname_pv}.tar.bz2"
			;;
		esac
	fi
	unset _kmname _kmname_pv
fi

debug-print "${LINENO} ${ECLASS} ${FUNCNAME}: SRC_URI is ${SRC_URI}"
debug-print "${LINENO} ${ECLASS} ${FUNCNAME}: DEPEND ${DEPEND} - before blockers"

# Monolithic ebuilds should add blockers for split ebuilds in the same slot.
# If KMNAME is not set then this is not a split package
if [[ -n ${KDEBASE} && -z ${KMNAME} ]]; then
	for _x in $(get-child-packages ${CATEGORY}/${PN}); do
		DEPEND="${DEPEND} !${_x}:${SLOT}"
		RDEPEND="${RDEPEND} !${_x}:${SLOT}"
	done
	unset _x
fi

debug-print "${BASH_SOURCE} ${LINENO} ${ECLASS} ${FUNCNAME}: DEPEND ${DEPEND} - after blockers"

# @ECLASS-VARIABLE: PREFIX
# @DESCRIPTION:
# Set the installation PREFIX. All kde-base ebuilds go into the KDE4 installation directory.
# Applications installed by the other ebuilds go into /usr/ by default, this value
# can be superseded by defining PREFIX before inheriting kde4-base.
if [[ -n ${KDEBASE} ]]; then
	PREFIX=${KDEDIR}
else
	# if PREFIX is not defined we set it to the default value of /usr
	PREFIX="${PREFIX:-/usr}"
fi

debug-print "${LINENO} ${ECLASS} ${FUNCNAME}: SLOT ${SLOT} - KDEDIR ${KDEDIR} - KDEDIRS ${KDEDIRS}- PREFIX ${PREFIX} - NEED_KDE ${NEED_KDE}"

# @FUNCTION: kde4-base_pkg_setup
# @DESCRIPTION:
# Adds flags needed by all of KDE 4 to $QT4_BUILT_WITH_USE_CHECK. Uses
# kde4-functions_check_use from kde4-functions.eclass to print appropriate
# errors and die if any required flags listed in $QT4_BUILT_WITH_USE_CHECK or
# $KDE4_BUILT_WITH_USE_CHECK are missing.
kde4-base_pkg_setup() {
	debug-print-function $FUNCNAME "$@"

	# KDE4 applications require qt4 compiled with USE="accessibility dbus jpeg png qt3support ssl zlib".
	QT4_BUILT_WITH_USE_CHECK="${QT4_BUILT_WITH_USE_CHECK} accessibility dbus jpeg png qt3support ssl zlib"

	if has debug ${IUSE//+} && use debug; then
		QT4_BUILT_WITH_USE_CHECK="${QT4_BUILT_WITH_USE_CHECK} debug"
	fi

	if has opengl ${IUSE//+} && use opengl; then
		QT4_BUILT_WITH_USE_CHECK="${QT4_BUILT_WITH_USE_CHECK} opengl"
	fi

	kde4-functions_check_use
}

# @FUNCTION: kde4-base_src_unpack
# @DESCRIPTION:
# This function unpacks the source tarballs for KDE4 applications.
#
# If no argument is passed to this function, then standard src_unpack is
# executed. Otherwise options are passed to base_src_unpack.
#
# If the directory ${WORKDIR}/patches/ exists, we apply all patches in that
# directory, provided they follow this format:
# @CODE
# - Monolithic ebuilds, (from kde-base)
#		- $CATEGORY=kde-base:
#			Apply ${CHILD_EBUILD_NAME}-${SLOT}-*{diff,patch}
#		- $CATEGORY=!kde-base:
#			Apply ${CHILD_EBUILD_NAME}-${PV}-*{diff,patch}
# - Split ebuilds:
#		- $CATEGORY=kde-base:
#			Apply ${PN}-${SLOT}-*{diff,patch}
#		- $CATEGORY!=kde-base:
#			Apply ${PN}-${PV}-*{diff,patch}
# @CODE
#
# If ${PATCHES} is non-zero all patches in it gets applied.
kde4-base_src_unpack() {
	debug-print-function $FUNCNAME "$@"

	[[ -z "${KDE_S}" ]] && KDE_S="${S}"

	local _patchdir _packages _p
	_patchdir="${WORKDIR}/patches/"
	if [[ -z $* ]]; then
		# Unpack first and deal with KDE patches after examing possible patch sets.
		# To be picked up, patches need to conform to the guidelines stated before.
		# Monolithic ebuilds will use the split ebuild patches.
		[[ -d "${KDE_S}" ]] || unpack ${A}
		if [[ -d "${_patchdir}" ]]; then
			if is-parent-package ${CATEGORY}/${PN} ; then
				_packages="$(get-child-packages ${CATEGORY}/${PN})"
				_packages="${_packages//${CATEGORY}\//} ${PN}"
			else
				_packages="${PN}"
			fi
			for _p in ${_packages}; do
				PATCHES="${PATCHES} $(ls ${_patchdir}/${_p}-${PV}-*{diff,patch} 2>/dev/null)"
				if [[ -n "${KDEBASE}" ]]; then
					PATCHES="${PATCHES} $(ls ${_patchdir}/${_p}-${SLOT}-*{diff,patch} 2>/dev/null)"
				fi
			done
		fi
		[[ -n ${PATCHES} ]] && base_src_unpack autopatch
	else
		# Call base_src_unpack, which unpacks and patches
		# step by step transparently as defined in the ebuild.
		base_src_unpack $*
	fi

	# Updated cmake dir
	if [[ -d "${WORKDIR}/cmake" ]] && [[ -d "${KDE_S}/cmake" ]]; then
		ebegin "Updating cmake/ directory..."
		rm -rf "${KDE_S}/cmake" || die "Unable to remove old cmake/ directory"
		ln -s "${WORKDIR}/cmake" "${KDE_S}/cmake" || die "Unable to symlink the new cmake/ directory"
	eend 0
	fi
}

# @FUNCTION: kde4-base_src_compile
# @DESCRIPTION:
# General function for compiling KDE4 applications.
kde4-base_src_compile() {
	debug-print-function ${FUNCNAME} "$@"

	kde4-base_src_configure
	kde4-base_src_make
}

# @FUNCTION: kde4-base_src_configure
# @DESCRIPTION:
# Function for configuring the build of KDE4 applications.
kde4-base_src_configure() {
	debug-print-function ${FUNCNAME} "$@"

	# Final flag handling
	if has kdeenablefinal ${IUSE//+} && use kdeenablefinal; then
		einfo "Activating enable-final flag"
		mycmakeargs="${mycmakeargs} -DKDE4_ENABLE_FINAL=ON"
	fi

	 # Enable generation of HTML handbook
	if has htmlhandbook ${IUSE//+} && use htmlhandbook; then
		einfo "Enabling building of HTML handbook"
		mycmakeargs="${mycmakeargs} -DKDE4_ENABLE_HTMLHANDBOOK=ON"
	fi

	# Build tests in src_test only, where we override this value
	mycmakeargs="${mycmakeargs} -DKDE4_BUILD_TESTS=OFF"

	# Set distribution name
	[[ ${PN} == "kdelibs" ]] && mycmakeargs="${mycmakeargs} -DKDE_DISTRIBUTION_TEXT=Gentoo"

	# runpath linking
	mycmakeargs="${mycmakeargs} -DKDE4_USE_ALWAYS_FULL_RPATH=ON"

	# Here we set the install prefix
	mycmakeargs="${mycmakeargs} -DCMAKE_INSTALL_PREFIX=${PREFIX}"

	# Set environment
	QTEST_COLORED=1
	QT_PLUGIN_PATH=${KDEDIR}/$(get_libdir)/kde4/plugins/

	cmake-utils_src_configureout
}

# @FUNCTION: kde4-base_src_make
# @DESCRIPTION:
# Function for building KDE4 applications.
# Options are passed to cmake-utils_src_make.
kde4-base_src_make() {
	debug-print-function ${FUNCNAME} "$@"

	cmake-utils_src_make "$@"
}

# @FUNCTION: kde4-base_src_test
# @DESCRIPTION:
# Function for testing KDE4 applications.
kde4-base_src_test() {
	debug-print-function ${FUNCNAME} "$@"

	# Override this value, set in kde4-base_src_configure()
	mycmakeargs="${mycmakeargs} -DKDE4_BUILD_TESTS=ON"
	cmake-utils_src_compile

	cmake-utils_src_test
}

# @FUNCTION: kde4-base_src_install
# @DESCRIPTION:
# Function for installing KDE4 applications.
kde4-base_src_install() {
	debug-print-function ${FUNCNAME} "$@"

	kde4-base_src_make_doc
	cmake-utils_src_install
}

# @FUNCTION: kde4-base_src_make_doc
# @DESCRIPTION:
# Function for installing the documentation of KDE4 applications.
kde4-base_src_make_doc() {
	debug-print-function ${FUNCNAME} "$@"

	local doc
	for doc in AUTHORS ChangeLog* README* NEWS TODO; do
		[[ -s $doc ]] && dodoc ${doc}
	done

	if [[ -z ${KMNAME} ]]; then
		for doc in {apps,runtime,workspace,.}/*/{AUTHORS,README*}; do
			if [[ -s $doc ]]; then
				local doc_complete=${doc}
				doc="${doc#*/}"
				newdoc "$doc_complete" "${doc%/*}.${doc##*/}"
			fi
		done
	fi

	if [[ -n ${KDEBASE} && -d "${D}"/usr/share/doc/${PF} ]]; then
		# work around bug #97196
		dodir /usr/share/doc/kde && \
			mv "${D}"/usr/share/doc/${PF} "${D}"/usr/share/doc/kde/ || \
			die "Failed to move docs to kde/ failed."
	fi
}

# @FUNCTION: kde4-base_pkg_postinst
# @DESCRIPTION:
# Function to rebuild the KDE System Configuration Cache after an application has been installed.
kde4-base_pkg_postinst() {
	buildsycoca
}

# @FUNCTION: kde4-base_pkg_postrm
# @DESCRIPTION:
# Function to rebuild the KDE System Configuration Cache after an application has been removed.
kde4-base_pkg_postrm() {
	buildsycoca
}