# Copyright 1999-2006 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

inherit eutils linux-info linux-mod

# correct for dash in filename
MY_PF=${PF/\0.0/\0-0}
S="${WORKDIR}/${MY_PF}"

DESCRIPTION="Linux filesystem which utilizes copy-on-write functionality"
HOMEPAGE="http://sourceforge.net/projects/mapfs"
SRC_URI="mirror://sourceforge/mapfs/${MY_PF}.tar.gz"

LICENSE="GPL-2"
SLOT="${KV}"
KEYWORDS="~x86"
IUSE=""

RDEPEND="virtual/modutils"
DEPEND="virtual/linux-sources"

pkg_setup() {
	get_version
	if [ "${KV_MAJOR}" == "2" -a "${KV_MINOR}" == "4" -a "${KV_PATCH}" -lt "7" ]; then
		eerror "Kernel is ${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}; MapFS is known to"
		eerror "build for kernels 2.4.7 - 2.6.16."
		eerror "Kernel too old, exiting."
		exit 1
	fi
	linux-mod_pkg_setup
	MODULE_NAMES="mapfs(kernel/fs/mapfs:${S})"
}

src_unpack() {
	unpack ${A} || die "unpack failed"
	if [ "${KV_MAJOR}" == "2" -a "${KV_MINOR}" == "6" -a "${KV_PATCH}" -gt "13" ]; then
		# Patch for Kernels >2.6.13
		# http://sourceforge.net/tracker/index.php?func=detail&aid=1474603&group_id=149646&atid=775455
		epatch ${FILESDIR}/mapfs-kernel-2.6.16.patch
	fi
}

src_compile() {
	cd ${ROOT}/usr/src/linux-${KV}
	unset ARCH
	make SUBDIRS=${WORKDIR}/${MY_PF} modules || die
}

src_install() {
	linux-mod_src_install
	dodoc LICENSE

	dodir /etc/init.d
	cp ${FILESDIR}/mapfs.init ${D}/etc/init.d/mapfs
}