# Copyright 1999-2010 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

EAPI=2

inherit mount-efi eutils versionator

MY_P="${PN}_${PV}"
DESCRIPTION="graphical boot menu for ia32 and x64 EFI systems"
HOMEPAGE="http://refit.sourceforge.net/"

# tarballs use debian versioning format
MY_PN="refit"
MY_PVR=$(replace_version_separator 2 '-' )
MY_PV=${MY_PVR/-*/}

S="${WORKDIR}/${MY_PN}-${MY_PV}"

SRC_URI_BASE="mirror://debian/pool/main/${MY_PN:0:1}/${MY_PN}/"
SRC_URI="${SRC_URI_BASE}${MY_PN}_${MY_PV}.orig.tar.gz
	${SRC_URI_BASE}${MY_PN}_${MY_PVR}.debian.tar.gz"

LICENSE="BSD"
SLOT="0"
KEYWORDS="~amd64 ~x86"
IUSE=""

DEPEND=">=sys-boot/gnu-efi-0.3a
	sys-boot/syslinux"

RDEPEND="sys-boot/efibootmgr
	sys-fs/dosfstools"

src_prepare() {
	for f in $(<"${WORKDIR}"/debian/patches/series) ; do
		EPATCH_OPTS="-p1" epatch "${WORKDIR}"/debian/patches/$f
	done
	sed -e "s!\$(LIBEG)!!" -i refit/Makefile
}

src_compile() {
	local iarch
	case $ARCH in
		x86)   iarch=ia32 ;;
		amd64) iarch=x86_64 ;;
		*)     die "unknown architecture: $ARCH" ;;
	esac

	# Generate include/syslinux_mbr.h
	chmod +x "${WORKDIR}"/debian/mbr/mkmbrhdr.py
	"${WORKDIR}"/debian/mbr/mkmbrhdr.py /usr/share/syslinux/mbr.bin > include/syslinux_mbr.h

	# Move the AA font in place
	cp -f "${WORKDIR}"/debian/font/egemb_font.h libeg/

	# Build EFI applications don't add C/LDFLAGS
	emake -C libeg SRCDIR="${S}"/libeg CC="$(tc-getCC)" ARCH=${iarch} || die
	emake -C refit SRCDIR="${S}"/refit CC="$(tc-getCC)" ARCH=${iarch} DEBVER="${iarch} (Gentoo ${PVR})" || die
	emake -C gptsync -f Makefile.gnuefi CC="$(tc-getCC)" SRCDIR="${S}"/gptsync ARCH=${iarch} || die

	# Build the gptsync command-line utility
	mkdir gptsync/buildux
	emake -C gptsync/buildux -f ../Makefile.unix SRCDIR="${S}"/gptsync CC="$(tc-getCC)" \
		CFLAGS="-Wall ${CFLAGS}" LDFLAGS="${LDFLAGS}" || die
}

src_install() {
	dosbin gptsync/buildux/gptsync
	dosbin gptsync/buildux/showpart

	# install into the std location as used by other distributins
	# the efi partititon is mounted into /boot/efi
	# the efi bootloaders are installed into the EFI dir
	# the dir name is upper case for Windows compatibility
	# at the moment the onyl really supported filesystem on
	# all efi bootloader in the efi partition is fat32 
	# (elilo, refit, grub-efi, ...)
	insinto /usr/share/${PN}
	doins refit/refit.efi
	insinto /usr/share/${PN}/tools
	doins gptsync/gptsync.efi
	insinto /usr/share/${PN}/${PN}
	doins -r icons
	doins images/vollabel/refit.vollabel
	doins refit.conf

	doman gptsync/gptsync.8
	doman "${WORKDIR}"/debian/showpart.8
}

setup_efi_dir() {
	local boot_dir=$1
	local dir=${boot_dir}

	mkdir -p "${dir}"
	dir="${dir}/refit"
	if [[ ! -e ${dir} ]] ; then
		mkdir -p "${dir}" || die "${dir} does not exist!"
	fi
	einfo "Copying files from /usr/share/refit to ${dir}"
	for x in \
		"${ROOT}"/usr/share/refit/* ; do
		[[ -f ${x} ]] && cp -p "${x}" "${dir}"/
	done

	if [[ ! -e ${dir}/refit ]] ; then
		mkdir -p "${dir}/refit" || die "${dir}/refit does not exist!"
	fi
	einfo "Copying files from /usr/share/refit/refit to ${dir}/refit"
	for x in \
		"${ROOT}"/usr/share/refit/refit/* ; do
		[[ -f ${x} ]] && cp -p "${x}" "${dir}/refit/"
	done

	if [[ ! -e ${dir}/refit/icons/ ]] ; then
		mkdir -p "${dir}/refit/icons/" || die "${dir}/refit/icons/ does not exist!"
	fi
	einfo "Copying files from /usr/share/refit/refit/icons to ${dir}/refit/icons"
	for x in \
		"${ROOT}"/usr/share/refit/refit/icons/* ; do
		[[ -f ${x} ]] && cp -p "${x}" "${dir}/refit/icons/"
	done

	if [[ ! -e ${dir}/tools ]] ; then
		mkdir -p "${dir}/tools/" || die "${dir}/tools/ does not exist!"
	fi
	einfo "Copying files from /usr/share/refit/tools to ${dir}/tools"
	for x in \
		"${ROOT}"/usr/share/refit/tools/* ; do
		[[ -f ${x} ]] && cp -p "${x}" "${dir}/tools/"
	done

}

pkg_postinst() {
	if [[ -n ${DONT_MOUNT_EFI} ]]; then
		elog "WARNING: you have DONT_MOUNT_EFI in effect, so you must apply"
		elog "the following instructions for your /boot/efi!"
		elog "Neglecting to do so may cause your system to fail to boot!"
		elog
	else
		setup_efi_dir "${ROOT}"/boot/efi/EFI
		# Trailing output because if this is run from pkg_postinst, it gets mixed into
		# the other output.
		einfo ""
	fi
	elog "To interactively install refit files to another device such as a USB"
	elog "stick, just run the following and specify the directory as prompted:"
	elog "   emerge --config =${PF}"
	elog "Alternately, you can export REFIT_ALT_INSTALLDIR=/path/to/use to tell"
	elog "refit where to install in a non-interactive way."

}

pkg_config() {
	local dir
	if [ ! -d "${REFIT_ALT_INSTALLDIR}" ]; then
		einfo "Enter the directory where you want to setup refit:"
		read dir
	else
		dir="${REFIT_ALT_INSTALLDIR}"/EFI
	fi
	setup_efi_dir "${dir}"
}