# Copyright 1999-2006 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/dev-util/eclipse-sdk/eclipse-sdk-3.1.2-r2.ebuild,v 1.1 2006/04/20 13:49:19 nichoj Exp $

inherit eutils java-utils flag-o-matic check-reqs

MY_A="eclipse-sourceBuild-srcIncluded-${PV}.zip"
RELEASE_DATE="200601181600"
DESCRIPTION="Eclipse Tools Platform"
HOMEPAGE="http://www.eclipse.org/"
SRC_URI="http://download.eclipse.org/eclipse/downloads/drops/R-${PV}-${RELEASE_DATE}/${MY_A}"
IUSE="nogecko-sdk gnome jikes nosrc nodoc atk"
SLOT="3.1"
LICENSE="CPL-1.0"
KEYWORDS="~x86 ~ppc ~amd64"
S="${WORKDIR}"

RDEPEND=">=virtual/jre-1.4.2
	>=x11-libs/gtk+-2.2.4
	!nogecko-sdk? ( net-libs/gecko-sdk )
	atk? ( >=dev-libs/atk-1.6 )
	gnome? ( =gnome-base/gnome-vfs-2* =gnome-base/libgnomeui-2* )"

DEPEND="${RDEPEND}
	>=virtual/jdk-1.4.2
	jikes? ( >=dev-java/jikes-1.21 )
	>=dev-java/ant-core-1.6.2-r4
	>=sys-apps/findutils-4.1.7
	app-arch/unzip
	app-arch/zip"

ECLIPSE_DIR="/usr/lib/eclipse-${SLOT}"
ECLIPSE_LINKS_DIR="${ECLIPSE_DIR}/links"

# TODO:
# - use CFLAGS from make.conf when building native libraries
#   - must patch eclipse build files
#   - also submit patch to bugs.eclipse.org
# - ppc support not tested, but not explicitly broken either
# - make a extension location in /var/lib that's writable by 'eclipse' group
# - use make_desktop_entry from eutils instead of our own stuff
# - 

pkg_setup() {
	debug-print "Checking for sufficient physical RAM"
	CHECKREQS_MEMORY="768"
	check_reqs

	debug-print "Checking for bad CFLAGS"
	check-cflags

	# Make sure our vm is sane
	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 use amd64 ; then
		eclipsearch=x86_64
	else
		eclipsearch=${ARCH}
	fi

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

	# eventually, we'll have a plugin directory that's user writable, as group
	# 'eclipse' -nichoj

	# Add the eclipse group, for our plugin directories
	#enewgroup eclipse
}

src_unpack() {
	unpack ${A}

	# TODO figure out what this does -nichoj
	epatch ${FILESDIR}/06-path-fixups.patch

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

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

	einfo "Patching makefiles"
	fix_makefiles
	fix_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

	if use !nogecko-sdk ; then
		einfo "Will compile embedded Mozilla support against net-libs/gecko-sdk"
		setup-mozilla-opts
	else
		einfo "Not building embedded Mozilla support"
	fi

	use jikes && bootstrap_ant_opts="-Dbuild.compiler=jikes"

	debug-print "Bootstrapping bootstrap ecj"
	ant ${bootstrap_ant_opts} -q -f jdtcoresrc/compilejdtcorewithjavac.xml || die "Failed to bootstrap ecj"

	debug-print "Bootstrapping ecj"
	ant -lib jdtcoresrc/ecj.jar -q -f jdtcoresrc/compilejdtcore.xml || die "Failed to bootstrap ecj"

	debug-print "Compiling Eclipse -- see ${S}/compilelog.txt for details"
	ANT_OPTS="-Xmx1024M" \
		ant -lib jdtcoresrc/ecj.jar -q -f build.xml \
		-DinstallOs=linux \
		-DinstallWs=gtk \
		-DinstallArch=${eclipsearch} \
		-Dbootclasspath=${bootclasspath} \
		-Dlibsconfig=true \
		-DjavacTarget=1.4 \
		-DjavacSource=1.4 \
		-DjavacVerbose=false \
		-DjavacFailOnError=true \
		-DjavacDebugInfo=true \
		-DbuildId="Gentoo Linux ${PF}" \
		|| die "Failed to compile Eclipse"

	cp launchertmp/eclipse eclipse-gtk || die "Cannot find eclipse binary"

	# TODO use make_desktop_entry from eutils during src_install instead -nichoj
	create-desktop-entry
}

src_install() {
	dodir /usr/lib

	debug-print "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}
	exeinto ${ECLIPSE_DIR}

	debug-print "Installing eclipse-gtk binary"
	doexe eclipse-gtk || die "Failed to install eclipse binary"
	# need to rename inf file to eclipse-gtk.ini, see bug #128128

	if use nosrc; then
		debug-print "Removing source code"
		strip-src
	fi

	if use nodoc ; then
		debug-print "Removing documentation"
		strip-docs
	fi

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

	install-desktop-entry

	doman ${FILESDIR}/eclipse.1

	install-link-files

	# eventually, we'll have a user writable extension location -nichoj
	# TODO make g+w
	#dodir /var/lib/eclipse-${SLOT}
	#touch ${D}/var/lib/eclipse-${SLOT}/.eclipseextension
	#fowners root:eclipse /var/lib/eclipse-${SLOT}

}

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

fix_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 !nogecko-sdk ; then
		einfo "Building Mozilla embed support"
		libs="${libs} make_mozilla"
	fi

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

fix_amd64_ibm_jvm() {
	# the ibm jdk ebuild should have fixed headers, but until then
	# we just fix the compiling here (see bug #97421)
	if use 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
}


clean-prebuilt-code() {
	find ${S} -type f \( -name '*.class' -o -name '*.so' -o -name '*.so.*' -o -name 'eclipse' \) | xargs rm -f
}

check-cflags() {
	local badflags="-fomit-frame-pointer -msse2"
	local error=false
	local flag

	for flag in ${badflags} ; do
		if is-flag ${flag}; then
			ewarn "Found offending option ${flag} in your CFLAGS"
			error=true
		fi
	done
	if [ ${error} == "true" ]; then
		echo
		ewarn "One or more potentially gruesome CFLAGS detected. When you run into trouble,"
		ewarn "please edit /etc/make.conf and remove all offending flags, then recompile"
		ewarn "Eclipse and all its dependencies before submitting a bug report."
		echo
		ewarn "In particular, gtk+ is extremely sensitive to which which flags it was"
		ewarn "compiled with."
		echo
		einfo "Tip: use equery depgraph \"=${PF}\" to list all dependencies."
		echo
		ebeep
	fi
}

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 JDK
		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="$(java-config --jdk-home)/jre/bin"
	else
		# Sun derived JDKs (Blackdown, Sun)
		local bp="$(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}
}

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

	if [ -f ${ROOT}/usr/lib/gecko-sdk/lib/libgtkembedmoz.so ] ; then
		mozilla_dir=/usr/lib/gecko-sdk
	else
		# TODO need to update this appropriately for gecko-sdk
		eerror "You have enabled the embedded mozilla component, but no suitable"
		eerror "provider was found. You need gecko-sdk 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}"
	# TODO should this be using pkg-config?
	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}/lib -lgtkembedmoz"
}

build-native() {
	sh features/org.eclipse.platform.launchers/library/gtk/build.sh \
		-os linux -ws gtk \
		-arch ${eclipsearch} || die "Failed to build launcher"
}
create-desktop-entry() {
	sed -e "s/@PV@/${PV}/" ${FILESDIR}/eclipse-${SLOT}.desktop \
		> eclipse-${SLOT}.desktop || die "Failed to create desktop entry"
}

install-desktop-entry() {
	dodir /usr/share/applications
	insinto /usr/share/applications
	doins eclipse-${SLOT}.desktop
}

install_link_file() {
	local path=${1}
	local file=${2}

	echo "path=${path}" > "${D}/${ECLIPSE_LINKS_DIR}/${file}"
}

install-link-files() {
	einfo "Installing link files"

	dodir ${ECLIPSE_LINKS_DIR}
	install_link_file /opt/eclipse-extensions-3 eclipse-binary-extensions-3.link
	install_link_file /opt/eclipse-extensions-3.1 eclipse-binary-extensions-3.1.link

	install_link_file /usr/lib/eclipse-extensions-3 eclipse-extensions-3.link
	install_link_file /usr/lib/eclipse-extensions-3.1 eclipse-extensions-3.1.link

#	install_link_file /var/lib/eclipse-3 eclipse-var-3.link
#	install_link_file /var/lib/eclipse-3.1 eclipse-var-3.1.link
}

strip-src() {
	local bp=${D}/${ECLIPSE_DIR}

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

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

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