# Copyright 1999-2008 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

inherit eutils

EAPI="2"
DESCRIPTION="Prediction and design of protein structures, folding mechanisms, and protein-protein interactions"
HOMEPAGE="http://www.rosettacommons.org/"
SRC_URI="https://www.rosettacommons.org/software/academic/2.3.0/rosetta++_source-${PV}.tgz"
RESTRICT="fetch test"
LICENSE="rosetta"
SLOT="0"
KEYWORDS="~x86"
IUSE="boinc opengl mpi debug doc icc profile test static"
RDEPEND=" mpi? ( virtual/mpi )
		  boinc? ( sci-misc/boinc ) "
DEPEND="${RDEPEND}
		>=dev-util/scons-0.96.1
		  doc? ( app-doc/doxygen )
		  icc? ( dev-lang/icc )
		  test? ( dev-libs/boost )
		  sys-apps/sed
		  sys-apps/findutils"
S="${WORKDIR}/rosetta++"
MYCONF=""

pkg_nofetch() {
	einfo "Please fill out the registration form at"
	einfo \
	"http://depts.washington.edu/ventures/UW_Technology/Express_Licenses/rosetta.php"
	einfo "Then download the file ${A} manually "
	einfo "and place it into ${DISTDIR} ."
	einfo "If you prefer to download RosettaBundle-2.3.0.tgz instead,"
	einfo "then, after having unpacked the bundle, the file "
	einfo "'rosetta++_srouce-2.3.0.tgz' has to be renamed to "
	einfo "'rosetta++-source-2.3.0.tgz' manually, due to a typo"
	einfo "which is present only in RosettaBundle-2.3.0.tgz"
}

src_prepare() {

	epatch "${FILESDIR}/rosetta-elliptic-msd.patch"
	epatch "${FILESDIR}/rosetta-gl-graphics.patch"
	epatch "${FILESDIR}/rosetta-setup-platforms.patch"
	epatch "${FILESDIR}/rosetta-options-settings.patch"
	epatch "${FILESDIR}/rosetta-FileName-cc-ostream.patch"
	epatch "${FILESDIR}/rosetta-PathName-cc-ostream.patch"
	epatch "${FILESDIR}/rosetta-basic-settings-nostdc99.patch"
	epatch "${FILESDIR}/rosetta-SConscript-src-use-clone.patch"
	epatch "${FILESDIR}/rosetta-SConscript-src-2-use-clone.patch"
	epatch "${FILESDIR}/rosetta-string-functions-cc.patch"
	epatch "${FILESDIR}/rosetta-zipstream-ipp.patch"
	epatch "${FILESDIR}/rosetta-DirectedSimAnnealer-cc.patch"
	epatch "${FILESDIR}/rosetta-dna-cc.patch"
	epatch "${FILESDIR}/rosetta-kin_id-h.patch"
	epatch "${FILESDIR}/rosetta-dna_classes-h.patch"
	epatch "${FILESDIR}/rosetta-loop_class-h.patch"
	epatch "${FILESDIR}/rosetta-barcode_classes-h.patch"
	epatch "${FILESDIR}/rosetta-packing_measures-cc.patch"
	epatch "${FILESDIR}/rosetta-XUtilities-cc.patch"
	epatch "${FILESDIR}/rosetta-basic-settings-nostrip.patch"
	epatch "${FILESDIR}/rosetta-basic-settings-gcc43.patch"
	epatch "${FILESDIR}/rosetta-barcode_classes-h-unitialized.patch"
	epatch "${FILESDIR}/rosetta-marchingCubes-cc-missing-braces.patch"

	#UPSTREAM: source archive contains headers and sourcefiles marked as executable
	#		   (don't want to install executable headers by stripdebug feature)
	find "${S}" -name '*.h'  -exec chmod a-x {} ';'
	find "${S}" -name '*.hh' -exec chmod a-x {} ';'
	find "${S}" -name '*.cc' -exec chmod a-x {} ';'


	#UPSTREAM: "README" was obviously renamed to "README.rosetta++", but is
	#           still referenced as "README" 
	# 		 -> create a symlink, because else scons cat=doc fails
	if use doc; then
		ln -s "${S}/README.rosetta++" "${S}/README"
	fi
}

src_unpack() {
	unpack ${A}
}


my_filter_option() {
	local value="$1"
	local exp="$2"
	local result=`echo ${value} | sed -e s/${exp}//g`
	echo "${result}"
	return 0;
}

src_configure() {
	local myextras=""
	local mymode=""
	local mycxx=""
	local myfiles=""

	use boinc && myextras="boinc"

	if use opengl; then
	    test -n "${myextras}" && myextras="${myextras},"
	    myextras="${myextras}graphics"
	fi

	if use mpi; then
	    test -n "${myextras}" && myextras="${myextras},"
	    myextras="${myextras}mpi"
	fi


	#UPSTREAM:dynamic linking is only performed if "valgrind" 
	#         was specified: see tools/build/setup*.py
	if ( ! use static ); then
		test -n "${myextras}" && myextras="${myextras},"
		myextras="${myextras}valgrind"
	fi

	#FIXME: uncertain if a newly invented use flag is appropriate
	use icc && mycxx="cxx=icc"

	test -n "${myextras}" && myextras="extras=${myextras}"


	if use debug; then
		mymode="debug"
	elif use profile; then
		mymode="profile"
	else
		mymode="release"
	fi


	#Bug: scons issues a __warning__ about -l not yet being 
	#	  supported, but then simply aborts. 
	einfo "filtering MAKOPTS for -l --load-average ..."
	MAKEOPTS=$(my_filter_option "${MAKEOPTS}" "--load-average[=0-9.]*")
	MAKEOPTS=$(my_filter_option "${MAKEOPTS}" "-l[0-9.]*")
	#	  add a filter for any other insane flag here

	MYCONF="${MAKEOPTS} mode=${mymode} ${myextras} ${mycxx}"
}

src_compile() {
	#UPSTREAM: scons script returns ok even after a RuntimeError was raised
	#	       exception handler in toplevel SConstruct file is probably 
	# 		   incomplete
	einfo "running 'scons ${MYCONF}' ..."
	scons ${MYCONF}  || die "scons ${MYCONF} failed"

	#Workaround: see if at least one rosetta executable exists
	#		     problem: executable name is rosetta.release||rosetta.debug 
	#					  rosetta.gcc || ...
	local myfiles=`ls -l "${S}"/bin/rosetta* 2>/dev/null | wc -l`;
	if test ${myfiles} -eq 0; then
		die "scons ${MYCONF} failed"
	fi

	if use doc; then
		einfo "running scons ${MYCONF} cat=doc ..."
		scons ${MYCONF} cat=doc || die "scons failed to build documentation"
		#UPSTREAM: rosetta doxygen source documentation make is broken
		#scons  doc || die "scons failed to build documentation"
	fi
}

src_test() {
	#UPSTREAM: 1. multiple library naming issues (libutil_release.a vs libutil.a)
	#		   2. undefined symbol main, if these naming issues are fixed
	#		      manually
	#		   3. boost dependency for test target only ...
	#scons testing
	#scons ${MYCONF} cat=test || die "scons ${MYCONF} cat=test failed"
	elog "The rosetta test target is still completely broken"
}

src_install() {
	#install executable(s)
	dobin bin/*

	#UPSTREAM: there is a complete doxy-generated source documentation,
	#		   but not yet compilable via scons
	if use doc; then
	   dohtml build/doc/rosetta++/docs/*
	fi

	#UPSTREAM: a copy of rosetta++ license should be part of archive
	#FIXME: what is the officially correct procedure to install a license
	#		${PORTAGE_ROOT} is not available here (unset)
	#install rosetta license as obtained from www.rosettacommons.org
	#insinto "/usr/portage/licenses" && doins "${FILESDIR}/static/rosetta"
}