# Copyright 1999-2012 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

# @ECLASS: oasis.eclass
# @MAINTAINER: 
# ml@gentoo.org
# @AUTHOR:
# Original Author: Alexis Ballier <aballier@gentoo.org>
# @BLURB: Provides common ebuild phases for oasis-based packages.
# @DESCRIPTION:
# Provides common ebuild phases for oasis-based packages.
# Most of these packages will just have to inherit the eclass, set their
# dependencies and the DOCS variable for base.eclass to install it and be done.
#
# It inherits multilib, findlib and base eclasses.
# Ebuilds using oasis.eclass must be EAPI>=2.
#

inherit multilib findlib base

case ${EAPI:-0} in
	0|1) die "You need at least EAPI-2 to use oasis.eclass";;
esac

IUSE="debug +ocamlopt"

DEPEND=">=dev-lang/ocaml-3.12[ocamlopt?]"
DEPEND="${RDEPEND}"

# @FUNCTION: oasis_use_enable
# @USAGE: < useflag > < variable >
# @DESCRIPTION:
# A use_enable-like function for oasis configure variables.
# Outputs variable=(true|false), whether useflag is enabled or not.
# Typical usage: $(oasis_use_enable ocamlopt is_native) as an oasis configure
# argument.
oasis_use_enable() {
	    echo "--override $2 `use $1 && echo \"true\" || echo \"false\"`"
}

# @FUNCTION: oasis_src_configure
# @DESCRIPTION:
# src_configure phase shared by oasis-based ebuilds.
# Extra arguments may be passed via oasis_configure_opts.
oasis_src_configure() {
	ocaml setup.ml -configure \
		--prefix usr \
		--libdir /usr/$(get_libdir) \
		--docdir /usr/share/doc/${PF}/html \
		--destdir "${D}" \
		$(oasis_use_enable debug debug) \
		$(oasis_use_enable ocamlopt is_native) \
		${oasis_configure_opts} \
		|| die
}

# @FUNCTION: oasis_src_compile_no_doc
# @DESCRIPTION:
# Build the package.
# oasis_src_compile will build documentation if doc is in IUSE and enabled, this
# function may be used to override this behavior.
oasis_src_compile_no_doc() {
	ocaml setup.ml -build || die
}

# @FUNCTION: oasis_src_compile
# @DESCRIPTION:
# Builds an oasis-based package.
# Will build documentation if doc is in IUSE and enabled.
oasis_src_compile() {
	oasis_src_compile_no_doc
	if has doc ${IUSE} && use doc; then
		ocaml setup.ml -doc || die
	fi
}

# @FUNCTION: oasis_src_test
# @DESCRIPTION:
# Runs the testsuite of an oasis-based package.
oasis_src_test() {
	 LD_LIBRARY_PATH="${S}/_build/lib" ocaml setup.ml -test || die
}

# @FUNCTION: oasis_src_install
# @DESCRIPTION:
# Installs an oasis-based package.
# It calls base_src_install_docs, so will install documentation declared in the
# DOCS variable.
oasis_src_install() {
	findlib_src_preinst
	ocaml setup.ml -install || die
	base_src_install_docs
}

EXPORT_FUNCTIONS src_configure src_compile src_test src_install