# Copyright 1999-2005 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /share/cvs/otherone/portage/dev-util/eclipse-sdk/eclipse-sdk-3.1.ebuild,v 1.11 2005/06/30 14:28:14 mokki Exp $

inherit eutils java-utils

MY_A="eclipse-sourceBuild-srcIncluded-3.1.zip"
DESCRIPTION="Eclipse Tools Platform"
HOMEPAGE="http://www.eclipse.org/"
SRC_URI="http://download.eclipse.org/eclipse/downloads/drops/R-3.1-200506271435/${MY_A}"
IUSE="gnome mozilla firefox cairo gcj src doc atk"
SLOT="3.1"
LICENSE="CPL-1.0"
KEYWORDS="x86 ~ppc amd64"

RDEPEND="
	>=virtual/jdk-1.4.2
	>=x11-libs/gtk+-2.2.4
	mozilla? ( >=www-client/mozilla-1.7 )
	atk? ( >=dev-libs/atk-1.6 )
	firefox? ( >=www-client/mozilla-firefox-1.0.2 )
	gcj? ( >=sys-devel/gcc-4.0.0_beta20050305 )
	cairo? ( >=x11-libs/cairo-0.3.0-r2 <x11-libs/cairo-0.5 )
	gnome? ( =gnome-base/gnome-vfs-2* =gnome-base/libgnomeui-2* )"

DEPEND="${RDEPEND}
	>=dev-java/ant-1.6.2
	>=sys-apps/findutils-4.1.7
	app-arch/unzip
	app-arch/zip"

# TODO:
# - use CFLAGS from make.conf when building native libraries
#   - must patch eclipse build files
#   - also submit patch to bugs.eclipse
# - intergration to eclipse plugin ebuilds most likely broken
# - remove gcj IUSE because it most propably won't work
# - ppc support not tested, but not explicitly broken either

pkg_setup() {

	einfo "Checking for sufficient physical RAM"
	check-ram

	java-utils_setup-vm

	java-utils_ensure-vm-version-ge 1 4 2

	# all other gentoo archs match in eclipse build system except amd64
	if [ ${ARCH} == 'amd64' ] ; then
		eclipsearch=x86_64
	else
		eclipsearch=${ARCH}
	fi

	# all other gentoo archs match in sun jdk library patch except x86
	if [ ${ARCH} == 'x86' ] ; then
		jvmarch=i386
	else
		jvmarch=${ARCH}
	fi
}

src_unpack() {

	mkdir ${S}
	cd ${S}
	unpack ${MY_A} || die "Could not unpack ${MY_A}"

	epatch ${FILESDIR}/eclipse-3.1.patch

	einfo "Setting up virtual machine"
	java-utils_setup-vm

	einfo "Cleaning out prebuilt code"
	clean-prebuilt-code

	einfo "Patching build"
	process-build

	einfo "Patching makefiles"
	process-makefiles

	einfo "Patching makefiles"
	process-makefiles

	patch_amd64_ibm_jvm
}

src_compile() {

	# karltk: this should be handled by the java-pkg eclass in setup-vm 
	addwrite "/proc/self/maps"
	addwrite "/proc/cpuinfo"
	addwrite "/dev/random"

	# Figure out VM, set up ant classpath and native library paths
	setup-jvm-opts

	${use_gtk} && use mozilla && setup-mozilla-opts

	einfo "Compiling eclipse -- see compilelog.txt for details"
	./build -os linux -arch ${eclipsearch} -ws gtk -compilelibs -bc "${bootclasspath}" \
		|| die "Failed to compile eclipse code (gtk+)"

	# The only mystery still to be solved: why the eclipe binary does not end up in
	# result tar.gz
	# rename the eclipse launcher to stay compatible with previous ebuilds
	mv launchertmp/eclipse eclipse-gtk

	einfo "Creating .desktop entry"
	create-desktop-entry
}

src_install() {

	eclipse_dir="/usr/lib/eclipse-${SLOT}"

	dodir /usr/lib

	einfo "Installing features and plugins"

	[ -f result/linux-gtk-${eclipsearch}-sdk.tar.gz ] || die "tar.gz bundle was not built properly!"
	tar zxf result/linux-gtk-${eclipsearch}-sdk.tar.gz -C ${D}/usr/lib || die "Failed to extract the built package"


	mv ${D}/usr/lib/eclipse ${D}/${eclipse_dir}

	insinto ${eclipse_dir}

	# Install launchers and native code
	exeinto ${eclipse_dir}

	einfo "Installing eclipse-gtk binary"
	doexe eclipse-gtk || die "Failed to install eclipse binary"

	if ! use src ; then
		einfo "Stripping away source code"
		strip-src
	fi

	if ! use doc ; then
		einfo "Stripping away documentation"
		strip-docs
	fi

	# Install startup script
	exeinto /usr/bin
	doexe ${FILESDIR}/eclipse-${SLOT}

	install-desktop-entry

	doman ${FILESDIR}/eclipse.1

	install-link-files
}

# -----------------------------------------------------------------------------
#  Helper functions
# -----------------------------------------------------------------------------

function setup-mozilla-opts()
{
	mozilla_dir="--mozdir-unset---"

	if [ -f ${ROOT}/usr/lib/MozillaFirefox/libgtkembedmoz.so ] ; then
		einfo "Compiling against www-client/mozilla-firefox"
		mozilla_dir=/usr/lib/MozillaFirefox
	elif [ -f ${ROOT}/usr/lib/mozilla/libgtkembedmoz.so ] ; then
		einfo "Compiling against www-client/mozilla"
		mozilla_dir=/usr/lib/mozilla
	else
		eerror "You have enabled the embedded mozilla component, but no suitable"
		eerror "provider was found. You need Mozilla or Firefox compiled against"
		eerror "gtk+ v2.0 or newer."
		eerror "To merge it, execute 'USE=\"gtk2\" emerge mozilla' as root."
		eerror "To disable embedded mozilla, remove \"mozilla\" from your USE flags."
		die "Need Mozilla compiled with gtk+-2.x support"
	fi

	export GECKO_SDK="${mozilla_dir}"
	export GECKO_INCLUDES="-include ${GECKO_SDK}/include/mozilla-config.h \
                        -I${GECKO_SDK}/include/nspr \
                        -I${GECKO_SDK}/include/nspr \
                        -I${GECKO_SDK}/include/xpcom \
                        -I${GECKO_SDK}/include/string \
                        -I${GECKO_SDK}/include/embed_base \
                        -I${JAVA_HOME}/include/linux"
	export GECKO_LIBS="-L${GECKO_SDK} -lgtkembedmoz"
}

function process-build() {

    local targetOptimization="1.4"
	local ant_opts="-Xmx768M"

# Eclipse has ~10 classes that do not yet compile with java 5.0
#	if (java-utils_is-vm-version-ge 1 5 0) ; then
#		targetOptimization="1.5"
#	fi

	einfo "Optimizing for Java ${targetOptimization} VM"

	# Some sun JVM's have only server VM and no client VM. To speed up things
	# use a same compiler threshold that client VM defaults to
	if [ ! -z "`java-config --java-version | fgrep "Server VM"`" ] ; then
		ant_opts="${ant_opts} -XX:CompileThreshold=1500"
	fi

	# Eclipse has started to respect global flags so patching the main build is enough
	local properties="-DjavacTarget=${targetOptimization} -DjavacSource=${targetOptimization} \
	    -DjavacVerbose=false -DjavacFailOnError=true -DjavacDebugInfo=true \
        -DbuildId=\"Gentoo Linux ${PF}\""

	sed -i \
      -e "s/ant -q /ant -q ${properties} /" \
      -e "s/ANT_OPTS=-Xmx1000M/ANT_OPTS=\"${ant_opts}\"/" build || die "Failed to patch build script"
}

function process-makefiles() {

	# Comment out hard-coded JAVA_HOME
	sed -i 's/^JAVA_HOME/#JAVA_HOME/' plugins/org.eclipse.core.resources.linux/src/Makefile || die "Failed to patch Makefile"

	# Select the set of native libraries to compile
	local libs="make_swt make_awt make_atk"

	if use gnome ; then
		einfo "Building GNOME VFS support"
		libs="${libs} make_gnome"
	fi

	if use mozilla ; then
		einfo "Building Mozilla embed support"
		libs="${libs} make_mozilla"
	fi

	if use atk ; then
		einfo "Building ATK support"
		libs="${libs} make_atk"
	fi

	if use cairo ; then
		einfo "Building SWT cairo support"
		libs="${libs} make_cairo"
	fi

	sed -i "s/^all:.*/all: ${libs}/" "plugins/org.eclipse.swt/Eclipse SWT PI/gtk/library/make_linux.mak" || die "Failed to patch make_linux.mak"
}

function create-desktop-entry() {

	cat ${FILESDIR}/eclipse-${SLOT}.desktop | \
		sed -e "s/@PV@/${PV}/" \
		> eclipse-${SLOT}.desktop || die "Failed to create desktop entry"
}

function install-desktop-entry() {

	dodir /usr/share/applications
	insinto /usr/share/applications
	doins eclipse-${SLOT}.desktop
}

function clean-prebuilt-code() {

	find ${S} -type f \( -name '*.class' -o -name '*.so' -o -name '*.so.*' -o -name 'eclipse' \) -delete
}

function get-memory-total() {
	cat /proc/meminfo | grep MemTotal | sed -r "s/[^0-9]*([0-9]+).*/\1/"
}

function check-ram() {

	local mem=$(get-memory-total)
	[ $(get-memory-total) -lt 775000 ] &&
		(
		echo
		ewarn "To build Eclipse, at least 768MB of RAM is recommended."
		ewarn "Your machine has less RAM. Continuing anyway."
		echo
		)
}

function install-link-files() {

	einfo "Installing link files"

	dodir /usr/lib/eclipse-${SLOT}/links

	echo "path=/opt/eclipse-extensions-3" > ${D}/${eclipse_dir}/links/eclipse-binary-extensions-3.link
	echo "path=/opt/eclipse-extensions-3.1" > ${D}/${eclipse_dir}/links/eclipse-binary-extensions-3.1.link

	echo "path=/usr/lib/eclipse-extensions-3" > ${D}/${eclipse_dir}/links/eclipse-extensions-3.link
	echo "path=/usr/lib/eclipse-extensions-3.1" > ${D}/${eclipse_dir}/links/eclipse-extensions-3.1.link
}

function patch_amd64_ibm_jvm() {
        # the ibm jdk ebuild should have fixed headers, but until then
        # we just fix the compiling here (see bug #97421)
        if [ ${ARCH} == 'amd64' ]; then
	    if [ ! -z "`java-config --java-version | grep IBM`" ] ; then
		einfo "Fixing IBM jdk header problem"
		find plugins -name "make_linux.mak" -print0 | xargs -0 sed -i -e 's/^CFLAGS =/CFLAGS = -D_JNI_IMPORT_OR_EXPORT_= /'
	    fi
	fi    
}

function setup-jvm-opts() {

	# Figure out correct boot classpath
	# karltk: this should be handled by the java-pkg eclass in setup-vm
	if [ ! -z "`java-config --java-version | grep IBM`" ] ; then
		# IBM JRE
		local bp="$(java-config --jdk-home)/jre/lib"
		bootclasspath="${bp}/core.jar:${bp}/xml.jar:${bp}/graphics.jar:${bp}/security.jar:${bp}/server.jar"
	        JAVA_LIB_DIR="$(java-config --jdk-home)/jre/bin"
	else
		# Sun derived JREs (Blackdown, Sun)
		local bp="$(java-config --jdk-home)/jre/lib"
		bootclasspath="${bp}/rt.jar:${bp}/jsse.jar"
	        JAVA_LIB_DIR="$(java-config --jdk-home)/jre/lib/${jvmarch}"
	fi
	einfo "Using bootclasspath ${bootclasspath}"
	einfo "Using JVM library path ${JAVA_LIB_DIR}"

	if [ ! -f ${JAVA_LIB_DIR}/libawt.so ] ; then
	    die "Could not find libawt.so native library"
	fi

	export AWT_LIB_PATH=${JAVA_LIB_DIR}
}

function strip-src() {

	local bp=${D}/${eclipse_dir}

	rm -rf ${bp}/plugins/org.eclipse.pde.source_3*
	rm -rf ${bp}/plugins/org.eclipse.jdt.source_3*
	rm -rf ${bp}/plugins/org.eclipse.platform.source.linux.*
	rm -rf ${bp}/plugins/org.eclipse.platform.source_3*

	rm -rf ${bp}/features/org.eclipse.jdt.source_3*/
	rm -rf ${bp}/features/org.eclipse.pde.source_3*/
	rm -rf ${bp}/features/org.eclipse.platform.source_3*/
}

function strip-docs() {
	local bp=${D}/${eclipse_dir}

	rm -rf ${bp}/plugins/org.eclipse.platform.doc.*
	rm -rf ${bp}/plugins/org.eclipse.jdt.doc.*
	rm -rf ${bp}/plugins/org.eclipse.pde.doc.*
}

function recompile-with-gcj() {
	:;
}