# Copyright 1999-2012 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/dev-util/eclipse-sdk/eclipse-sdk-3.4-r2.ebuild,v 1.5 2012/05/21 20:05:07 ssuominen Exp $

# To unbundle a jar, do the following:
# 1) Rewrite the ebuild so it uses OSGi packaging
# 2) Add the dependency and add it to gentoo_jars/system_jars
# 3) Remove it from the build directory, and don't forget to modify the main Ant file
# so that it does *NOT* copy the file at the end
# 4) Install the symlink itself via java-pkg_jarfrom

# Jetty, Tomcat-jasper have to stay bundled for now, until someone does some work on them.

# Current patches are hard to maintain when revbumping.
# Two solutions:
# 1) Split patches so that there is one per file
# 2) Use sed, better solution I would say.

EAPI="1"
JAVA_PKG_IUSE="doc"
inherit eutils java-pkg-2 java-ant-2 check-reqs

DMF="R-${PV}-200806172000"
MY_A="eclipse-sourceBuild-srcIncluded-${PV}.zip"

DESCRIPTION="Eclipse Tools Platform"
HOMEPAGE="http://www.eclipse.org/"
SRC_URI="http://archive.eclipse.org/eclipse/downloads/drops/${DMF}/${MY_A}"

SLOT="3.4"
LICENSE="EPL-1.0"
IUSE="java6"
KEYWORDS="amd64 ~ppc x86"

S=${WORKDIR}
PATCHDIR="${FILESDIR}/${SLOT}"
FEDORA="${PATCHDIR}/fedora"
ECLIPSE_DIR="/usr/lib/eclipse-${SLOT}"

CDEPEND="dev-java/ant-eclipse-ecj:${SLOT}
	dev-java/ant-core
	dev-java/ant-nodeps
	dev-java/junit:0
	dev-java/junit:4
	dev-java/swt:${SLOT}
	>=dev-java/jsch-0.1.36-r1
	>=dev-java/icu4j-3.8.1:0
	>=dev-java/commons-el-1.0-r2
	>=dev-java/commons-logging-1.1-r6
	>=dev-java/tomcat-servlet-api-5.5.25-r1:2.4
	dev-java/lucene:1.9
	>=dev-java/lucene-analyzers-1.9.1-r1:1.9"
RDEPEND=">=virtual/jre-1.6
	${CDEPEND}"
DEPEND=">=virtual/jdk-1.6
	dev-java/cldc-api:1.1
	app-arch/unzip
	app-arch/zip
	${CDEPEND}"

JAVA_PKG_BSFIX="off"

pkg_setup() {
	java-pkg-2_pkg_setup

	CHECKREQS_MEMORY="512"
	check_reqs

	eclipsearch=${ARCH}
	use amd64 && eclipsearch="x86_64"
}

src_unpack() {
	unpack ${A}
	patch-apply
	remove-bundled-stuff

	# Specific Gentoo tweaks for the build
	find "${S}" -type f -name '*.xml' -exec \
		sed -r -e "s:(-encoding ISO-8859-1):\1 -nowarn:g" \
		-e "s:(\"compilerArg\" value=\"):\1-nowarn :g" \
		-e "s:(<property name=\"javacSource\" value=)\".*\":\1\"1.5\":g" \
		-e "s:(<property name=\"javacTarget\" value=)\".*\":\1\"1.5\":g" \
		-e "s:output=\".*(txt|log).*\"::g" -i {} \;

	# JDK home
	sed -r -e "s:gcc :gcc ${CFLAGS} :" \
		-e "s:^(JAVA_HOME =) .*:\1 $(java-config --jdk-home):" \
		-i plugins/org.eclipse.core.filesystem/natives/unix/linux/Makefile \
		|| die "sed Makefile failed"

	while read line; do
		java-ant_rewrite-classpath "${line}" > /dev/null
	done < <(find "${S}" -type f -name "build.xml")
}

src_compile() {
	# Figure out correct boot classpath
	local bootclasspath=$(java-config --runtime)
	einfo "Using boot classpath ${bootclasspath}"

	java-pkg_force-compiler ecj-${SLOT}

	# system_jars will be used when compiling (javac)
	# gentoo_jars will be used when building JSPs and other ant tasks (not javac)
	local system_jars="$(java-pkg_getjars swt-${SLOT},icu4j,ant-core,jsch,junit-4,tomcat-servlet-api-2.4,\
lucene-1.9,lucene-analyzers-1.9):$(java-pkg_getjars --build-only ant-nodeps,cldc-api-1.1)"
	local gentoo_jars="$(java-pkg_getjars ant-core,icu4j,jsch,commons-logging,commons-el,tomcat-servlet-api-2.4)"
	local options="-q -Dnobootstrap=true -Dlibsconfig=true -Dbootclasspath=${bootclasspath} -DinstallOs=linux \
		-DinstallWs=gtk -DinstallArch=${eclipsearch} -Djava5.home=$(java-config --jdk-home)"
	use java6 && options="${options} -DJavaSE-1.6=${bootclasspath}"
	use doc && options="${options} -Dgentoo.javadoc=true"

	ANT_OPTS=-Xmx512M ANT_TASKS="ant-nodeps" \
	eant ${options} \
		-Dgentoo.classpath="${system_jars}" \
		-Dgentoo.jars="${gentoo_jars//:/,}"
}

src_install() {
	dodir "/usr/lib"

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

	mv "${D}/usr/lib/eclipse" "${D}/${ECLIPSE_DIR}"

	# Install startup script
	dobin "${FILESDIR}/${SLOT}/eclipse-${SLOT}"
	chmod +x "${D}/${ECLIPSE_DIR}/eclipse"

	insinto "/etc"
	doins "${FILESDIR}/${SLOT}/eclipserc"

	make_desktop_entry "eclipse-${SLOT}" "Eclipse ${PV}" "${ECLIPSE_DIR}/icon.xpm"

	cd "${D}/${ECLIPSE_DIR}"
	install-link-system-jars
}

pkg_postinst() {
	einfo "Welcome to Eclipse ${PV} (Ganymede)!"
	einfo
	einfo "You can now install plugins via Update Manager without any"
	einfo "tweaking. This is the recommended way to install new features for Eclipse."
	einfo
	einfo "Please read http://gentoo-wiki.com/Eclipse"
	einfo "It contains a lot of useful information and help about Eclipse on Gentoo."
	einfo
	einfo "The FileInitializer Plugin is no more integrated."
	einfo "If you need it, get org.eclipse.equinox.initializer_x.y.z.jar from:"
	einfo "	http://download.eclipse.org/eclipse/equinox/"
	echo
	ewarn "The new Update Manager (P2) is not yet supported under Gentoo."
	ewarn "Please enable the 'Classic Update' under:"
	ewarn "Window > Preferences > General > Capabilities"
}

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

install-link-system-jars() {
	pushd plugins/ > /dev/null

	mkdir "org.apache.ant"
	mkdir "org.apache.ant/META-INF/"
	mkdir "org.apache.ant/lib"
	cp "${FILESDIR}/${SLOT}/ant-osgi-manifest.mf" "org.apache.ant/META-INF/MANIFEST.MF"
	pushd org.apache.ant/lib > /dev/null
	java-pkg_jarfrom ant-core
	java-pkg_jarfrom ant-nodeps
	popd > /dev/null

	java-pkg_jarfrom swt-${SLOT}
	java-pkg_jarfrom icu4j
	java-pkg_jarfrom jsch
	java-pkg_jarfrom commons-el
	java-pkg_jarfrom commons-logging
	java-pkg_jarfrom lucene-1.9
	java-pkg_jarfrom lucene-analyzers-1.9
	java-pkg_jarfrom tomcat-servlet-api-2.4
	java-pkg_jarfrom --into org.junit_*/ junit
	java-pkg_jarfrom --into org.junit4*/ junit-4
	popd > /dev/null
}

patch-apply() {
	# optimize launcher build
	mkdir launchertmp
	unzip -qq -d launchertmp plugins/org.eclipse.platform/launchersrc.zip \
		|| die "unzip failed"
	pushd launchertmp/ > /dev/null
	sed -r -e "s/CFLAGS = -O -s -Wall/CFLAGS = ${CFLAGS} -Wall/" \
		-i library/gtk/make_linux.mak || die "Failed to tweak make_linux.mak"
	zip -q -6 -r ../launchersrc.zip * || die "zip failed"
	popd > /dev/null
	mv launchersrc.zip plugins/org.eclipse.platform/launchersrc.zip
	rm -rf launchertmp

	# disable swt, jdk6
	# use sed where possible => ease bump :)
	sed -e "/..\/..\/plugins\/org.eclipse.ui.win32/,/<\/ant>/d" \
		-i features/org.eclipse.platform/build.xml
	sed -e "/dir=\"..\/..\/plugins\/org.eclipse.swt/,/<\/ant>/d" \
		-i features/org.eclipse.rcp/build.xml \
		-i features/org.eclipse.rcp.source/build.xml
	sed -e "/dir=\"..\/..\/plugins\/org.eclipse.ui.carbon\"/,/<\/ant>/d" \
		-i features/org.eclipse.rcp/build.xml

	sed -e "/dir=\"plugins\/org.eclipse.swt.gtk.linux.${eclipsearch}\"/d" \
		-e "/value=\"org.eclipse.swt.gtk.linux.${eclipsearch}_/,/eclipse.plugins/d" \
		-i assemble.org.eclipse.sdk.linux.gtk.${eclipsearch}.xml
	sed -e "s:\${basedir}/swt.jar:$(java-pkg_getjars --build-only swt-${SLOT}):" \
		-i plugins/org.eclipse.swt.gtk.linux.${eclipsearch}/build.xml

	if ! use java6; then
		sed -e "/..\/..\/plugins\/org.eclipse.jdt.apt.pluggable.core/,/<\/ant>/d" \
			-e "/..\/..\/plugins\/org.eclipse.jdt.compiler.apt/,/<\/ant>/d" \
			-e "/..\/..\/plugins\/org.eclipse.jdt.compiler.tool/,/<\/ant>/d" \
			-i features/org.eclipse.jdt/build.xml

		sed -e "/id=\"org.eclipse.jdt.apt.pluggable.core\"/,/<plugin/d" \
			-e "/id=\"org.eclipse.jdt.compiler.apt\"/,/<plugin/d" \
			-e "/id=\"org.eclipse.jdt.compiler.tool\"/,/<plugin/d" \
			-i features/org.eclipse.jdt/feature.xml

		sed -e "/dir=\"plugins\/org.eclipse.jdt.apt.pluggable.core\"/d" \
			-e "/dir=\"plugins\/org.eclipse.jdt.compiler.apt/d" \
			-e "/dir=\"plugins\/org.eclipse.jdt.compiler.tool\"/d" \
			-e "/value=\"org.eclipse.jdt.apt.pluggable.core/,/eclipse.plugins/d" \
			-e "/value=\"org.eclipse.jdt.compiler.apt/,/eclipse.plugins/d" \
			-e "/value=\"org.eclipse.jdt.compiler.tool/,/eclipse.plugins/d" \
			-i assemble.org.eclipse.sdk.linux.gtk.${eclipsearch}.xml
	fi

	epatch "${PATCHDIR}/eclipse_build-libs.diff"
	epatch "${PATCHDIR}/eclipse_String.compareTo.diff"
	epatch "${PATCHDIR}/eclipse_buildfix-pde.diff"

	# JNI
	epatch "${FEDORA}/eclipse-libupdatebuild2.patch"

	# Generic releng plugins that can be used to build plugins
	# https://www.redhat.com/archives/fedora-devel-java-list/2006-April/msg00048.html
	pushd plugins/org.eclipse.pde.build > /dev/null
	# %patch53
	epatch "${FEDORA}/eclipse-pde.build-add-package-build.patch"
	sed -e "s:@eclipse_base@:${ECLIPSE_DIR}:g" \
		-i templates/package-build/build.properties
	popd > /dev/null

	# Following adds an additional classpath when building JSPs
	sed '/<path id="@dot\.classpath">/ a\
		<filelist dir="" files="${gentoo.jars}" />' \
		-i plugins/org.eclipse.help.webapp/build.xml

	# Following allows the doc USE flag to be honored
	sed -e '/<target name="generateJavadoc" depends="getJavadocPath"/ c\
		<target name="generateJavadoc" depends="getJavadocPath" if="gentoo.javadoc">' \
		-e '/<replace file="\${basedir}\/\${optionsFile}" token="@rt@" value="\${bootclasspath}/ c\
		<replace file="${basedir}/${optionsFile}" token="@rt@" value="${bootclasspath}:${gentoo.classpath}" />' \
		-i plugins/org.eclipse.platform.doc.isv/buildDoc.xml

	# This allows to compile osgi.util and osgi.service, and fixes IPluginDescriptor.class which is present compiled
	sed -e 's/<src path="\."/<src path="org"/' \
		-e '/<include name="org\/"\/>/d' \
		-e '/<subant antfile="\${customBuildCallbacks}" target="pre\.gather\.bin\.parts" failonerror="false" buildpath="\.">/ { n;n;n; a\
		<copy todir="${destination.temp.folder}/org.eclipse.osgi.services_3.1.200.v20071203" failonerror="true" overwrite="false"> \
			<fileset dir="${build.result.folder}/@dot"> \
				<include name="**"/> \
			</fileset> \
		</copy>
		}' \
		-i plugins/org.eclipse.osgi.services/build.xml

	sed -e 's/<src path="\."/<src path="org"/' \
		-e '/<include name="org\/"\/>/d' \
		-e '/<subant antfile="\${customBuildCallbacks}" target="pre\.gather\.bin\.parts" failonerror="false" buildpath="\.">/ { n;n;n; a\
		<copy todir="${destination.temp.folder}/org.eclipse.osgi.util_3.1.200.v20071203" failonerror="true" overwrite="false"> \
			<fileset dir="${build.result.folder}/@dot"> \
				<include name="**"/> \
			</fileset> \
		</copy>
		}' \
		-i plugins/org.eclipse.osgi.util/build.xml

	sed '/<mkdir dir="${temp\.folder}\/runtime_registry_compatibility\.jar\.bin"\/>/ a\
		<mkdir dir="classes"/> \
		<copy todir="classes" failonerror="true" overwrite="false"> \
			<fileset dir="${build.result.folder}/../org.eclipse.core.runtime/@dot/" includes="**/IPluginDescriptor.class" /> \
		</copy>' \
		-i plugins/org.eclipse.core.runtime.compatibility.registry/build.xml

	# This removes the copying operation for bundled jars
	sed -e "s/<copy.*com\.jcraft\.jsch_.*\/>//" \
		-e "s/<copy.*com\.ibm\.icu_.*\/>//" \
		-e "s/<copy.*org\.apache\.commons\.el_.*\/>//" \
		-e "s/<copy.*org\.apache\.commons\.logging_.*\/>//" \
		-e "s/<copy.*javax\.servlet\.jsp_.*\/>//" \
		-e "s/<copy.*javax\.servlet_.*\/>//" \
		-e "s/<copy.*org\.apache\.lucene_.*\/>//" \
		-e "s/<copy.*org\.apache\.lucene\.analysis_.*\/>//" \
		-i package.org.eclipse.sdk.linux.gtk.${eclipsearch}.xml
}

remove-bundled-stuff() {
	# Remove pre-built eclipse binaries
	find "${S}" -type f -name eclipse | xargs rm
	# ...  .so libraries
	find "${S}" -type f -name '*.so' | xargs rm
	# ... .jar files
	pushd plugins/ >/dev/null
	rm org.eclipse.osgi/osgi/osgi*.jar \
		org.eclipse.osgi/supplement/osgi/osgi.jar \
		org.eclipse.swt/extra_jars/exceptions.jar

	rm -rf org.apache.ant_*/*
	rm org.apache.commons.el_*.jar org.apache.commons.logging_*.jar \
		com.jcraft.jsch_*.jar com.ibm.icu_*.jar org.junit_*/*.jar \
		org.junit4*/*.jar javax.servlet.jsp_*.jar javax.servlet_*.jar \
		org.apache.lucene_*.jar org.apache.lucene.analysis_*.jar

	# Remove bundled classes
	rm -rf org.eclipse.osgi.services/org
	unzip -q org.eclipse.osgi.services/src.zip -d org.eclipse.osgi.services/
	rm -rf org.eclipse.osgi.util/org
	unzip -q org.eclipse.osgi.util/src.zip -d org.eclipse.osgi.util/

	rm -rf org.eclipse.jdt.core/scripts/*.class
	rm -rf org.eclipse.core.runtime.compatibility.registry/classes
	popd >/dev/null
}