# Copyright 1999-2011 Gentoo Foundation

# Distributed under the terms of the GNU General Public License v2

# $Header: $

EAPI="4"

inherit cmake-utils pam versionator

MY_GWTVER="2.4.0"

MY_GINVER="1.5"

DESCRIPTION="RStudio is an IDE for use with the R language."

HOMEPAGE="http://www.rstudio.org"

SRC_URI="https://github.com/rstudio/rstudio/tarball/v${PV} -> rstudio-${PV}.tar.gz

	https://s3.amazonaws.com/rstudio-buildtools/gin-${MY_GINVER}.zip ->

	rstudio-gin-${MY_GINVER}.zip

	https://s3.amazonaws.com/rstudio-buildtools/gwt-${MY_GWTVER}.zip ->

	rstudio-gwt-${MY_GWTVER}.zip"

# The rstudio source can download its dependencies itself. Most are in portage

# already, but not gwt and gin. Adding the source packages to SRC_URI instead of

# using the provided install script so that an `ebuild fetch' will actually get

# you everything you need, without requiring connectivity in the src_prepare

# phase.

LICENSE="AGPL-3"

SLOT="0"

KEYWORDS="~amd64 ~x86"

IUSE="+desktop server"

QTVER="4.7"

RDEPEND=">=dev-lang/R-2.11.1

	>=x11-libs/pango-1.14

	>=dev-libs/boost-1.42

	dev-libs/openssl

	desktop? (	>=x11-libs/qt-core-${QTVER}

				>=x11-libs/qt-gui-${QTVER}

				>=x11-libs/qt-webkit-${QTVER}

				>=x11-libs/qt-xmlpatterns-${QTVER} )

	server? ( virtual/pam )"

DEPEND="${RDEPEND}

	>=dev-util/cmake-2.6

	app-arch/unzip

	dev-java/ant-core

	virtual/jdk"

pkg_pretend() {

	if ! use desktop && ! use server; then

		eerror "Must select at least one of RStudio desktop or RStudio server to install"

	fi

}

src_unpack() {

	# since gin-1.5.zip has no toplevel dir, unpack that seperately

	unpack rstudio-${PV}.tar.gz rstudio-gwt-${MY_GWTVER}.zip

	mkdir "${WORKDIR}"/gin-${MY_GINVER}

	cd "${WORKDIR}"/gin-${MY_GINVER}

	unpack rstudio-gin-${MY_GINVER}.zip

	cd ..

	# packages extract to rstudio-rstudio-HASH, so find it this way so we don't

	# have to look up the hash for each version.

	S=$(ls -d "${WORKDIR}"/rstudio-rstudio-* | head -n 1)

	if [[ -z "${S}" ]]; then

		die "Failed to determine source directory."

	fi

}

src_prepare() {

	# extract the gin-ver.zip and gwt-ver.zip files to

	# the appropriate location

	mkdir -p "${S}"/src/gwt/lib/{gwt,gin}

	einfo "Adding missing gin to source."

	mv "${WORKDIR}"/gin-${MY_GINVER} "${S}"/src/gwt/lib/gin/${MY_GINVER}

	einfo "Adding missing gwt sdk to source."

	mv "${WORKDIR}"/gwt-${MY_GWTVER} "${S}"/src/gwt/lib/gwt/${MY_GWTVER}

	# And now we fix src/gwt/build.xml since java's user preference class is

	# braindead and insists on writing where it is not allowed.

	# much thanks to http://www.allaboutbalance.com/articles/disableprefs/

	epatch "${FILESDIR}/${P}-prefs.patch"

	# change the install path, as by default everything is dumped right under

	# the prefix.After fixing install paths, now fix the source so the program can 

	# find the moved resources.

	epatch "${FILESDIR}/${P}-paths.patch"

	# Some gcc hardening options were added, however since we add

	# "-Wl,--as-needed" we end up with "-Wl,--as-needed;-Wl,-z,relro" which

	# leads to linker errors about unknown options, if we make it so the

	# as-needed option is the last option on the line, everything is fine.

	epatch "${FILESDIR}/${P}-linker_flags.patch"

	# Adding -DDISTRO_SHARE=... to append-flags breaks cmake so using

	# this sed hack for now. ~RMH

	DISTRO_DIR="\"share/${PN}\""

	sed -i -e "s|DISTRO_SHARE|${DISTRO_DIR}|" src/cpp/server/ServerOptions.cpp

	sed -i -e "s|DISTRO_SHARE|${DISTRO_DIR}|" src/cpp/session/SessionOptions.cpp

}

src_configure() {

	# Set the proper version number (no more 99.9.9). ~RMH

	export RSTUDIO_VERSION_MAJOR=$(get_version_component_range 1)

	export RSTUDIO_VERSION_MINOR=$(get_version_component_range 2)

	export RSTUDIO_VERSION_PATCH=$(get_version_component_range 3)

	local mycmakeargs=(-DDISTRO_SHARE=share/${PN})

	if use server; then

		if use desktop; then

			mycmakeargs+=(-DRSTUDIO_TARGET=All)

		else

			mycmakeargs+=(-DRSTUDIO_TARGET=Server)

		fi

	else

		mycmakeargs+=(-DRSTUDIO_TARGET=Desktop)

	fi

	cmake-utils_src_configure

}

src_install() {

	cmake-utils_src_install

	if use server; then

		dopamd "${S}"/src/cpp/server/extras/pam/rstudio

		newinitd "${FILESDIR}"/rstudio-rserver.initd rstudio-rserver

	fi

	# Add a desktop entry. ~RMH

	if use desktop; then

		sed -e "s|\@VERSION\@|${PV}|" "${FILESDIR}/${PN}-${PN}.desktop" > "${T}/${PN}-${PN}.desktop"

		ls ${T}

		domenu "${T}/${PN}-${PN}.desktop" || die

	fi

}

pkg_postinst() {

	if use server; then

		enewgroup rstudio-server

		enewuser rstudio-server -1 -1 -1 rstudio-server

	fi

}