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# Copyright 1999-2010 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $
EAPI="2"
inherit eutils linux-mod
DESCRIPTION="An entirely re-designed and re-implemented Unionfs."
HOMEPAGE="http://aufs.sourceforge.net/"
SRC_URI="http://www.fh-kl.de/~torsten.kockler/gentoo/${P}.tar.bz2"
LICENSE="GPL-2"
SLOT="0"
KEYWORDS="~amd64 ~x86"
IUSE="hinotify ksize nfs nfsexport"
MODULE_NAMES="aufs(addon/fs/${PN}:)"
BUILD_PARAMS="KDIR=${KV_DIR} -f local.mk"
BUILD_TARGETS="all"
check_patch() {
get_version
# Check if ksize Patch has to be applied
if use ksize ; then
APPLY_KSIZE_PATCH="n"
# If ksize patch is not applied
if ! grep -qs "EXPORT_SYMBOL(ksize);" "${KV_DIR}/mm/slab.c" ; then
APPLY_KSIZE_PATCH="y"
fi
fi
# Check if lhash Patch has to be applied
if use nfs && kernel_is ge 2 6 19 ; then
APPLY_LHASH_PATCH="n"
# If lhash patch is not applied
if ! grep -qs "EXPORT_SYMBOL(__lookup_hash);" "${KV_DIR}/fs/namei.c" \
&& ! grep -qs "struct dentry * __lookup_hash(struct qstr *name, struct dentry
* base, struct nameidata *nd);" "${KV_DIR}/fs/namei.h" ; then
APPLY_LHASH_PATCH="y"
fi
fi
}
pkg_setup() {
# kernel version check
if kernel_is lt 2 6 16 ; then
eerror "${PN} is being developed and tested on linux-2.6.16 and later."
eerror "Make sure you have a proper kernel version!"
die "Wrong kernel version"
fi
check_patch
# If a patch has to be applied
if [[ ${APPLY_KSIZE_PATCH} == "y" ]] || [[ ${APPLY_LHASH_PATCH} == "y" ]] ; then
ewarn "Patching your kernel..."
cd ${KV_DIR}
fi
# If the ksize patch has to be applied
if [[ ${APPLY_KSIZE_PATCH} == "y" ]] ; then
epatch "${FILESDIR}"/${P}-ksize.patch
fi
# If the lhash patch has to be applied
if [[ ${APPLY_LHASH_PATCH} == "y" ]] ; then
epatch "${FILESDIR}"/${P}-lhash.patch
fi
linux-mod_pkg_setup
}
src_unpack(){
unpack ${A}
cd "${S}"
# Enable ksize Patch in priv_def.mk
if use ksize ; then
echo "CONFIG_AUFS_KSIZE_PATCH = y" >> priv_def.mk || die "setting ksize in priv_def.mk failed!"
fi
# Enable lhash Patch in priv_def.mk
if use nfs && kernel_is ge 2 6 19 ; then
echo "CONFIG_AUFS_LHASH_PATCH = y" >> priv_def.mk || die "setting lhash in priv_def.mk failed!"
fi
# Enable hinotify in priv_def.mk
if use hinotify && kernel_is ge 2 6 18 ; then
echo "CONFIG_AUFS_HINOTIFY = y" >> priv_def.mk || die "setting hinotify in priv_def.mk failed!"
fi
# Enable nfsexport in priv_def.mk
if use nfsexport && kernel_is ge 2 6 18 ; then
echo "CONFIG_AUFS_EXPORT = y" >> priv_def.mk || die "setting nfsexport in priv_def.mk failed!"
fi
# Disable SYSAUFS for kernel less than 2.6.18
if kernel_is lt 2 6 18 ; then
echo "CONFIG_AUFS_SYSAUFS = " >> priv_def.mk || die "unsetting sysaufs in priv_def.mk failed!"
fi
# Check if a vserver-kernel is installed
if [[ -e ${KV_DIR}/include/linux/vserver ]] ; then
einfo "vserver kernel seems to be installed"
einfo "using vserver patch"
echo "AUFS_DEF_CONFIG = -DVSERVER" >> priv_def.mk || die "setting vserver in priv_def.mk failed!"
fi
}
src_install() {
exeinto /sbin
exeopts -m0500
doexe mount.aufs umount.aufs auplink aulchown || die
doman aufs.5 || die
linux-mod_src_install
}
pkg_postinst() {
elog "To be able to use aufs, you have to load the kernel module by typing:"
elog "modprobe aufs"
elog "For further information refer to the aufs man page"
# Tell the user to recompile his kernel
if [[ ${APPLY_KSIZE_PATCH} == "y" ]] || [[ ${APPLY_LHASH_PATCH} == "y" ]] ; then
echo
ewarn "Remember to re-compile your kernel to make the patch(es) work"
ewarn
fi
linux-mod_pkg_postinst
}
pkg_prerm() {
[[ $(has_version "${CATEGORY}/${PF}"[ksize]) || $(has_version
"${CATEGORY}"/"${PF}"[nfs]) ]] && DO_CHECK="y"
}
pkg_postrm() {
# Tell the user that his kernel has already been patched
if [[ DO_CHECK == "y" ]] ; then
check_patch
if [[ ${APPLY_KSIZE_PATCH} == "n" ]] || [[ ${APPLY_LHASH_PATCH} == "n" ]] ; then
ewarn "Your kernel has been patched previously by this ebuild."
ewarn "You can undo the patches by executing the following:"
echo
ewarn "cd ${KV_DIR}; make mrproper, re-emerge and re-compile your kernel - ${KV_FULL}"
fi
fi
linux-mod_pkg_postrm
}
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