# Copyright 1999-2009 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/dev-lang/dmd-bin/dmd-bin-2.008-r1.ebuild,v 1.5 2009/08/23 01:57:40 williamh Exp $

EAPI="3"

inherit eutils

MY_P=${P/-bin/}
MY_P=${MY_P/-/.}

DESCRIPTION="Digital Mars D Compiler"
HOMEPAGE="http://www.digitalmars.com/d/"
SRC_URI="http://ftp.digitalmars.com/${MY_P}.zip"

IUSE="multilib build"
# TODO: under amd64 build is required for getting 64bit dmd

LICENSE="DMD"
RESTRICT="mirror strip"
SLOT="0"
KEYWORDS="~amd64 ~x86"

LOC="/opt/dmd"
S="${WORKDIR}"

DEPEND="sys-apps/findutils
	app-arch/unzip
	amd64? ( sys-devel/gcc[multilib] )"

RDEPEND="
	amd64? ( sys-devel/gcc[multilib] )"
# TODO: +amd64 and (-build or +multilib) means that we need gcc[multilib]

# TODO: currently it targeted only at linux

src_unpack() {
	unpack ${A}

	# Cleanup line endings
	cd "${S}/dmd2"
	edos2unix `find . -name '*.c' -type f`
	edos2unix `find . -name '*.d' -type f`
	edos2unix `find . -name '*.ddoc' -type f`
	edos2unix `find . -name '*.h' -type f`
	edos2unix `find . -name '*.mak' -type f`
	edos2unix `find . -name '*.txt' -type f`
	edos2unix `find samples -name '*.html' -type f`
	edos2unix src/dmd/linux.mak src/phobos/linux.mak src/phobos/etc/c/zlib/linux.mak

	# Fix permissions and clean up
	fperms guo=r,u+w `find . -type f`
	fperms guo=rx,u+w `find . -type d`
	fperms guo=rx,u+w linux/bin/dmd linux/bin/dumpobj linux/bin/obj2asm linux/bin/rdmd

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

src_compile() {
	if use build; then
		# rebuild compiler
		# TODO: check that nothing is broken
		cd "${S}/dmd2/src/dmd"
		if use x86; then
			make -f linux.mak MODEL=32 || die "Failed to build dmd 32bit"
		elif use amd64; then
			make -f linux.mak MODEL=64 || die "Failed to build dmd 64bit"
		else
			die "x86 or amd64 should be in USE?"
		fi
		cp -f dmd "${S}/dmd2/linux/bin/"
		make -f linux.mak clean
		# XXX: dumpobj, obj2asm and rdmd will stay as 32bit binaries

		# fix druntime to use boundled/built
		cd "${S}/dmd2/src/druntime"

		# rebuild phobos2 (druntime will be rebuilt as dependency)
		cd "${S}/dmd2/src/phobos"
	
		if use x86 || use amd64 && use multilib; then
			make -f posix.mak MODEL=32 "DMD=${S}/dmd2/linux/bin/dmd" || die "Failed to build phobos2 32bit"
			cp generated/linux/release32/libphobos2.a "${S}/dmd2/linux/lib32/" || die
		fi
		if use amd64; then
			make -f posix.mak MODEL=64 "DMD=${S}/dmd2/linux/bin/dmd" || die "Failed to build phobos2 64bit"
			cp generated/linux/release64/libphobos2.a "${S}/dmd2/linux/lib64/" || die
		fi

		# Clean up
		make -f posix.mak clean MODEL=32
		make -f posix.mak clean MODEL=64

		cd "${S}/dmd2/src/druntime"
		#make -f posix.mak clean MODEL=32
		#make -f posix.mak clean MODEL=64
		rm -rf lib* obj* doc

		# check that we didn't screwed-up (TODO: make it in a right way, with USE)
		cd "${S}/dmd2/samples/d" || die "No samples?"
		DFLAGS="-I${S}/dmd2/src/phobos -I${S}/dmd2/src/druntime/import -L-L${S}/dmd2/linux/lib32 -L-L${S}/dmd2/linux/lib64"
		DMD="${S}/dmd2/linux/bin/dmd"
		pwd
		if use x86 || use amd64 && use multilib; then
			${DMD} -m32 ${DFLAGS} hello.d || die "Failed to build hello.d (32bit)"
			rm hello.o hello
		fi
		if use amd64; then
			${DMD} -m64 ${DFLAGS} hello.d || die "Failed to build hello.d (64bit)"
			rm hello.o hello
		fi
		#die "XXX"

	fi
}

src_install() {
	cd "${S}/dmd2"

	sed -i -e 's|%@P%/../../src/|/opt/dmd/src/|g;s|%@P%/../lib|/opt/dmd/lib|g' "linux/bin/dmd.conf"
	if use amd64; then
		# add -m64 as default
		sed -i -e 's/^\(\s*DFLAGS=\)/\1-m64 /' "linux/bin/dmd.conf"
	fi
	insinto /etc
	doins linux/bin/dmd.conf

	# Man pages
	doman man/man1/dmd.1
	doman man/man1/dmd.conf.5
	doman man/man1/dumpobj.1
	doman man/man1/obj2asm.1
	doman man/man1/rdmd.1

	# Documentation
	dohtml -r html/d/*

	# Install
	exeinto /opt/dmd/bin
	doexe linux/bin/dmd
	doexe linux/bin/dumpobj
	doexe linux/bin/obj2asm
	doexe linux/bin/rdmd

	if use x86 || use amd64 && use multilib; then
		insinto /opt/dmd/lib32
		doins linux/lib32/libphobos2.a
	fi
	if use amd64; then
		insinto /opt/dmd/lib64
		doins linux/lib64/libphobos2.a
	fi

	insinto /opt/dmd/samples
	doins samples/d/*

	# Phobos and DMD source
	mv src "${D}/opt/dmd/"

	# Set PATH
	doenvd "${FILESDIR}/25dmd"
}

pkg_postinst () {
	ewarn "You may need to run:                             "
	ewarn "env-update && source /etc/profile                "
	ewarn "to be able to use the compiler immediately.      "
	einfo "                                                 "
	einfo "The bundled samples and sources may be found in  "
	einfo "/opt/dmd/samples and /opt/dmd/src respectively.  "
	einfo "                                                 "
}