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# Copyright 1999-2012 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sci-chemistry/pdb2pqr/pdb2pqr-1.7.0-r2.ebuild,v 1.2 2012/10/19 10:10:18 jlec Exp $

EAPI=4

PYTHON_DEPEND="2:2.5"
SUPPORT_PYTHON_ABIS="1"
PYTHON_EXPORT_PHASE_FUNCTIONS="1"
RESTRICT_PYTHON_ABIS="2.4 3.* 2.7-pypy-*"

inherit autotools eutils fortran-2 flag-o-matic python toolchain-funcs versionator

MY_PV=$(get_version_component_range 1-2)
MY_P="${PN}-${MY_PV}"

DESCRIPTION="An automated pipeline for performing Poisson-Boltzmann electrostatics calculations"
LICENSE="BSD"
HOMEPAGE="http://pdb2pqr.sourceforge.net/"
SRC_URI="mirror://sourceforge/${PN}/${MY_P}.tar.gz"

SLOT="0"
IUSE="doc examples opal +pdb2pka"
KEYWORDS="~amd64 ~ppc ~x86 ~amd64-linux ~x86-linux"

RDEPEND="
	dev-python/numpy
	sci-chemistry/openbabel
	opal? ( dev-python/zsi )
	pdb2pka? ( sci-chemistry/apbs[python,-mpi] )"
DEPEND="${RDEPEND}"

S="${WORKDIR}/${MY_P}"

pkg_setup() {
	if [[ -z ${MAXATOMS} ]]; then
		einfo "If you like to have support for more then 10000 atoms,"
		einfo "export MAXATOMS=\"your value\""
	else
		einfo "Allow usage of ${MAXATOMS} during calculations"
	fi
	python_pkg_setup
	fortran-2_pkg_setup
}

src_prepare() {
	epatch \
		"${FILESDIR}"/${PN}-1.4.0-ldflags.patch \
		"${FILESDIR}"/${PN}-1.4.0-automagic.patch \
		"${FILESDIR}"/${PV}-install.patch
	sed \
		-e '50,200s:CWD:DESTDIR:g' \
		-i Makefile.am || die

	python_src_prepare

	preparation() {
		sed \
			-e "s:python\$PY_VERSION:$(PYTHON):g" \
			-i configure.ac || die

		eautoreconf
	}
	python_execute_function -s preparation

	tc-export CC
}

src_configure() {
	# we need to compile the *.so as pic
	append-flags -fPIC
	FFLAGS="${FFLAGS} -fPIC"

	configuration() {
		# Avoid automagic to numeric
		econf \
			--enable-propka \
			--with-max-atoms=${MAXATOMS:-10000} \
			$(use_enable pdb2pka) \
			$(use_with opal) \
			NUMPY="${EPREFIX}/$(python_get_sitedir)" \
			F77="$(tc-getFC)"
	}
	python_execute_function -s configuration
}

src_compile() {
	python_execute_function -d -s
}

src_test() {
	testing() {
		emake -j1 test
	}
	python_execute_function -s testing
}

src_install() {
	installation() {
		dodir $(python_get_sitedir)/${PN}
		emake -j1 DESTDIR="${ED}$(python_get_sitedir)/${PN}" \
			PREFIX="" install

		INPATH="$(python_get_sitedir)/${PN}"

		# generate pdb2pqr wrapper
		cat >> "${T}"/${PN}-$(python_get_version) <<-EOF
			#!/bin/sh
			$(PYTHON) ${EPREFIX}${INPATH}/${PN}.py \$*
		EOF

		cat >> "${T}"/pdb2pka-$(python_get_version) <<-EOF
			#!/bin/sh
			$(PYTHON) ${EPREFIX}${INPATH}/pdb2pka/pka.py \$*
		EOF

		dobin "${T}"/{${PN},pdb2pka}-$(python_get_version)

		insinto "${INPATH}" && doins __init__.py

		exeinto "${INPATH}" && doexe ${PN}.py

		insinto "${INPATH}"/dat && doins dat/*

		exeinto "${INPATH}"/extensions && doexe extensions/*

		insinto "${INPATH}"/src && doins src/*.py

		exeinto "${INPATH}"/propka && doexe propka/_propkalib.so

		insinto "${INPATH}"/propka && doins propka/propkalib.py propka/__init__.py

		insinto "${INPATH}"/pdb2pka && doins pdb2pka/*.{py,so,DAT,h}

		dosym ../../apbs/_apbs.so "${INPATH}"/pdb2pka/_apbslib.so
		dosym ../../apbs/apbslib.py "${INPATH}"/pdb2pka/apbslib.py
		dosym ../../apbs/apbslib.pyc "${INPATH}"/pdb2pka/apbslib.pyc
		dosym ../../apbs/apbslib.pyo "${INPATH}"/pdb2pka/apbslib.pyo
	}
	python_execute_function -s installation

	dosym ${PN}-$(python_get_version -f) /usr/bin/${PN}
	dosym pdb2pka-$(python_get_version -f) /usr/bin/pdb2pka

	if use doc; then
		pushd doc > /dev/null
		sh genpydoc.sh || die "genpydoc failed"
		dohtml -r *.html images pydoc
		popd > /dev/null
	fi

	use examples && \
		insinto /usr/share/${PN}/ && \
		doins -r examples

	dodoc ChangeLog NEWS README AUTHORS
}

pkg_postinst() {
	python_mod_optimize ${PN}
}

pkg_postrm() {
	python_mod_cleanup ${PN}
}