Refresh RPM packaging

Refresh the existing RPM packaging to conform to the 'Fedora
Packaging Guidelines'.  This includes adopting the kmods2
packaging standard which is used fod kmods distributed by
rpmfusion for Fedora/RHEL.

  http://fedoraproject.org/wiki/Packaging:Guidelines
  http://rpmfusion.org/Packaging/KernelModules/Kmods2

While the spec files have been entirely rewritten from a
user perspective the only major changes are:

* The Fedora packages now have a build dependency on the
  rpmfusion repositories.  The generic kmod packages also
  have a new dependency on kmodtool-1.22 but it is bundled
  with the source rpm so no additional packages are needed.

* The kernel binary module packages have been renamed from
  zfs-modules-* to kmod-zfs-* as specificed by kmods2.

* The is now a common kmod-zfs-devel-* package in addition
  to the per-kernel devel packages.  The common package
  contains the development headers while the per-kernel
  package contains kernel specific build products.

Signed-off-by: Brian Behlendorf <[email protected]>
Closes #1341

4 files changed, 667 insertions, 0 deletions

diff --git a/scripts/Makefile.am b/scripts/Makefile.am
index 80e9cd19a..08a32b439 100644
--- a/scripts/Makefile.am
+++ b/scripts/Makefile.am
@@ -1,5 +1,8 @@
 SUBDIRS = zpool-config zpios-test zpios-profile
 
+EXTRA_DIST = dkms.mkconf dkms.postinst kmodtool
+
+pkgdatadir = $(datadir)/@PACKAGE@
 dist_pkgdata_SCRIPTS = \
 	$(top_builddir)/scripts/common.sh \
 	$(top_srcdir)/scripts/zconfig.sh \
diff --git a/scripts/dkms.mkconf b/scripts/dkms.mkconf
new file mode 100755
index 000000000..2e07be481
--- /dev/null
+++ b/scripts/dkms.mkconf
@@ -0,0 +1,88 @@
+#!/bin/sh
+
+PROG=$0
+
+pkgcfg=/etc/sysconfig/zfs
+
+while getopts "n:v:c:f:" opt; do
+	case $opt in
+		n) pkgname=$OPTARG ;;
+		v) pkgver=$OPTARG  ;;
+		c) pkgcfg=$OPTARG ;;
+		f) filename=$OPTARG ;;
+	esac
+done
+
+if [ -z "${pkgname}" -o -z "${pkgver}" -o -z "${filename}" ]; then
+	echo "Usage: $PROG -n <pkgname> -v <pkgver> -c <pkgcfg> -f <filename>"
+	exit 1
+fi
+
+cat >${filename} <<EOF
+PACKAGE_NAME="${pkgname}"
+PACKAGE_VERSION="${pkgver}"
+PACKAGE_CONFIG="${pkgcfg}"
+PRE_BUILD="configure
+  --prefix=/usr
+  --with-config=kernel
+  --with-spl=\${dkms_tree}/spl/\${PACKAGE_VERSION}/build
+  --with-spl-obj=\${dkms_tree}/spl/\${PACKAGE_VERSION}/\${kernelver}/\${arch}
+  --with-spl-timeout=300
+  \$(
+    [[ -r \${PACKAGE_CONFIG} ]] \\
+    && source \${PACKAGE_CONFIG} \\
+    && shopt -q -s extglob \\
+    && \\
+    {
+      if [[ \${ZFS_DKMS_ENABLE_DEBUG,,} == @(y|yes) ]]
+      then
+        echo --enable-debug
+      fi
+      if [[ \${ZFS_DKMS_ENABLE_DMU_TX,,} == @(y|yes) ]]
+      then
+        echo --enable-debug-dmu-tx
+      fi
+    }
+  )
+"
+POST_INSTALL="scripts/dkms.postinst
+  -n \${PACKAGE_NAME}
+  -v \${PACKAGE_VERSION}
+  -a \${arch}
+  -k \${kernelver}
+  -t \${dkms_tree}
+"
+AUTOINSTALL="yes"
+REMAKE_INITRD="no"
+MAKE[0]="make"
+STRIP[0]="\$(
+  [[ -r \${PACKAGE_CONFIG} ]] \\
+  && source \${PACKAGE_CONFIG} \\
+  && shopt -q -s extglob \\
+  && [[ \${ZFS_DKMS_DISABLE_STRIP,,} == @(y|yes) ]] \\
+  && echo -n no
+)"
+STRIP[1]="\${STRIP[0]}"
+STRIP[2]="\${STRIP[0]}"
+STRIP[3]="\${STRIP[0]}"
+STRIP[4]="\${STRIP[0]}"
+STRIP[5]="\${STRIP[0]}"
+BUILT_MODULE_NAME[0]="zavl"
+BUILT_MODULE_LOCATION[0]="module/avl/"
+DEST_MODULE_LOCATION[0]="/extra/avl/avl"
+BUILT_MODULE_NAME[1]="znvpair"
+BUILT_MODULE_LOCATION[1]="module/nvpair/"
+DEST_MODULE_LOCATION[1]="/extra/nvpair/znvpair"
+BUILT_MODULE_NAME[2]="zunicode"
+BUILT_MODULE_LOCATION[2]="module/unicode/"
+DEST_MODULE_LOCATION[2]="/extra/unicode/zunicode"
+BUILT_MODULE_NAME[3]="zcommon"
+BUILT_MODULE_LOCATION[3]="module/zcommon/"
+DEST_MODULE_LOCATION[3]="/extra/zcommon/zcommon"
+BUILT_MODULE_NAME[4]="zfs"
+BUILT_MODULE_LOCATION[4]="module/zfs/"
+DEST_MODULE_LOCATION[4]="/extra/zfs/zfs"
+BUILT_MODULE_NAME[5]="zpios"
+BUILT_MODULE_LOCATION[5]="module/zpios/"
+DEST_MODULE_LOCATION[5]="/extra/zpios/zpios"
+EOF
diff --git a/scripts/dkms.postinst b/scripts/dkms.postinst
new file mode 100755
index 000000000..3cbc7c7ce
--- /dev/null
+++ b/scripts/dkms.postinst
@@ -0,0 +1,24 @@
+#!/bin/bash
+
+PROG=$0
+
+while getopts "a:k:n:t:v:" opt; do
+	case $opt in
+		a) arch=$OPTARG    ;;
+		k) kver=$OPTARG    ;;
+		n) pkgname=$OPTARG ;;
+		t) tree=$OPTARG    ;;
+		v) pkgver=$OPTARG  ;;
+	esac
+done
+
+if [ -z "${arch}" -o -z "${kver}" -o -z "${pkgname}" -o \
+     -z "${tree}" -o -z "${pkgver}" ]; then
+	echo "Usage: $PROG -a <arch> -k <kver> -n <pkgname>" \
+	     "-t <tree> -v <pkgver>"
+	exit 1
+fi
+
+cp ${tree}/${pkgname}/${pkgver}/build/zfs_config.h          \
+   ${tree}/${pkgname}/${pkgver}/build/module/Module.symvers \
+   ${tree}/${pkgname}/${pkgver}/${kver}/${arch}/
diff --git a/scripts/kmodtool b/scripts/kmodtool
new file mode 100755
index 000000000..2170c4a90
--- /dev/null
+++ b/scripts/kmodtool
@@ -0,0 +1,552 @@
+#!/bin/bash
+
+# kmodtool - Helper script for building kernel module RPMs
+# Copyright (c) 2003-2012 Ville Skyttä <[email protected]>,
+#                         Thorsten Leemhuis <[email protected]>
+#                         Nicolas Chauvet <[email protected]>
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+shopt -s extglob
+
+myprog="kmodtool-${repo}"
+myver="0.12.1"
+
+kmodname=
+build_kernels="current"
+kernels_known_variants=
+kernel_versions=
+kernel_versions_to_build_for=
+prefix=
+filterfile=
+target=
+
+error_out()
+{
+	local errorlevel=${1}
+	shift
+	echo "Error: $@" >&2
+	# the next line is not multi-line safe -- not needed *yet*
+	echo "%global kmodtool_check echo \"kmodtool error: $@\"; exit ${errorlevel};"
+	exit ${errorlevel}
+}
+
+print_rpmtemplate_header()
+{
+	echo
+	echo '%global kmodinstdir_prefix  '${prefix}/lib/modules/
+	echo '%global kmodinstdir_postfix '/extra/${kmodname}/
+	echo '%global kernel_versions     '${kernel_versions}
+	echo
+}
+
+print_akmodtemplate ()
+{
+	echo
+	cat <<EOF
+
+%global akmod_install mkdir -p \$RPM_BUILD_ROOT/%{_usrsrc}/akmods/; \\\
+rpmbuild --define "_sourcedir %{_sourcedir}" \\\
+--define "_srcrpmdir \$RPM_BUILD_ROOT/%{_usrsrc}/akmods/" \\\
+-bs --nodeps %{_specdir}/%{name}.spec ; \\\
+ln -s \$(ls \$RPM_BUILD_ROOT/%{_usrsrc}/akmods/) \$RPM_BUILD_ROOT/%{_usrsrc}/akmods/${kmodname}-kmod.latest
+
+%package -n akmod-${kmodname}
+Summary:	Akmod package for ${kmodname} kernel module(s) 
+Group: 		System Environment/Kernel
+Requires:   kmodtool
+Requires: 	akmods
+%{?AkmodsBuildRequires:Requires: %{AkmodsBuildRequires}}
+# same requires and provides as a kmods package would have
+Requires: 	${kmodname}-kmod-common >= %{?epoch:%{epoch}:}%{version}
+Provides: 	${kmodname}-kmod = %{?epoch:%{epoch}:}%{version}-%{release}
+EOF
+
+	if [[ ${obsolete_name} ]]; then
+		echo "Provides:   akmod-${obsolete_name} = ${obsolete_version}"
+		echo "Obsoletes:  akmod-${obsolete_name} < ${obsolete_version}"
+	fi
+
+	cat <<EOF
+
+%description -n akmod-${kmodname}
+This package provides the akmod package for the ${kmodname} kernel modules.
+
+%posttrans -n akmod-${kmodname}
+nohup ${prefix}/sbin/akmods --from-akmod-posttrans --akmod ${kmodname} &> /dev/null &
+
+%files -n akmod-${kmodname}
+%defattr(-,root,root,-)
+%{_usrsrc}/akmods/*
+
+EOF
+}
+
+print_akmodmeta ()
+{
+		cat <<EOF
+%package      -n kmod-${kmodname}
+Summary:         Metapackage which tracks in ${kmodname} kernel module for newest kernel${dashvariant}
+Group:           System Environment/Kernel
+
+Provides:        ${kmodname}-kmod = %{?epoch:%{epoch}:}%{version}-%{release}
+Provides:        kmod-${kmodname}-xen = %{?epoch:%{epoch}:}%{version}-%{release}
+Provides:        kmod-${kmodname}-smp = %{?epoch:%{epoch}:}%{version}-%{release}
+Provides:        kmod-${kmodname}-PAE = %{?epoch:%{epoch}:}%{version}-%{release}
+Requires:        akmod-${kmodname} = %{?epoch:%{epoch}:}%{version}-%{release}
+EOF
+
+	if [[ ${obsolete_name} ]]; then
+		echo "Provides:        kmod-${obsolete_name} = ${obsolete_version}"
+		echo "Obsoletes:       kmod-${obsolete_name} < ${obsolete_version}"
+	fi
+cat <<EOF
+
+%description  -n kmod-${kmodname}${dashvariant}
+This is a meta-package without payload which sole purpose is to require the
+${kmodname} kernel module(s) for the newest kernel${dashvariant},
+to make sure you get it together with a new kernel.
+
+%files        -n kmod-${kmodname}${dashvariant}
+%defattr(644,root,root,755)
+EOF
+}
+
+print_rpmtemplate_per_kmodpkg ()
+{
+	if [[ "${1}" == "--custom" ]]; then
+		shift
+		local customkernel=true
+	elif [[ "${1}" == "--redhat" ]]; then
+		# this is needed for akmods
+		shift
+		local redhatkernel=true
+	fi
+
+	local kernel_uname_r=${1}
+	local kernel_variant="${2:+-${2}}"
+
+    # first part
+	cat <<EOF
+%package       -n kmod-${kmodname}-${kernel_uname_r}
+Summary:          ${kmodname} kernel module(s) for ${kernel_uname_r}
+Group:            System Environment/Kernel
+Provides:         kernel-modules-for-kernel = ${kernel_uname_r}
+Provides:         kmod-${kmodname}-uname-r = ${kernel_uname_r}
+Provides:         ${kmodname}-kmod = %{?epoch:%{epoch}:}%{version}-%{release}
+Requires:         ${kmodname}-kmod-common >= %{?epoch:%{epoch}:}%{version}
+Requires(post):   ${prefix}/sbin/depmod
+Requires(postun): ${prefix}/sbin/depmod
+%{?KmodsRequires:Requires: %{KmodsRequires}-uname-r = ${kernel_uname_r}}
+%{?KmodsBuildRequires:BuildRequires: %{KmodsBuildRequires}-uname-r = ${kernel_uname_r}}
+%{?KmodsBuildRequires:BuildRequires: %{KmodsBuildRequires}}
+EOF
+
+	if [[ ${obsolete_name} ]]; then
+		echo "Provides:        kmod-${obsolete_name}-${kernel_uname_r} = ${obsolete_version}"
+		echo "Obsoletes:       kmod-${obsolete_name}-${kernel_uname_r} < ${obsolete_version}"
+	fi
+
+	# second part
+	if [[ ! "${customkernel}" ]]; then
+	     cat <<EOF
+Requires:         kernel-uname-r = ${kernel_uname_r}
+BuildRequires:	  kernel-devel-uname-r = ${kernel_uname_r}
+%post          -n kmod-${kmodname}-${kernel_uname_r}
+${prefix}/sbin/depmod -aeF /boot/System.map-${kernel_uname_r} ${kernel_uname_r} > /dev/null || :
+%postun        -n kmod-${kmodname}-${kernel_uname_r}
+${prefix}/sbin/depmod  -aF /boot/System.map-${kernel_uname_r} ${kernel_uname_r} &> /dev/null || :
+
+EOF
+	else
+	  cat <<EOF
+%post          -n kmod-${kmodname}-${kernel_uname_r}
+[[ "$(uname -r)" == "${kernel_uname_r}"  ]] && ${prefix}/sbin/depmod -a > /dev/null || :
+%postun        -n kmod-${kmodname}-${kernel_uname_r}
+[[ "$(uname -r)" == "${kernel_uname_r}"  ]] && ${prefix}/sbin/depmod -a > /dev/null || :
+
+EOF
+	fi
+
+  # third part
+	cat <<EOF
+%description  -n kmod-${kmodname}-${kernel_uname_r}
+This package provides the ${kmodname} kernel modules built for the Linux
+kernel ${kernel_uname_r} for the %{_target_cpu} family of processors.
+%files        -n kmod-${kmodname}-${kernel_uname_r}
+%defattr(644,root,root,755)
+%dir $prefix/lib/modules/${kernel_uname_r}/extra
+${prefix}/lib/modules/${kernel_uname_r}/extra/${kmodname}/
+
+
+EOF
+}
+
+print_rpmtemplate_kmoddevelpkg ()
+{
+	cat <<EOF
+%package       -n kmod-${kmodname}-devel
+Summary:          ${kmodname} kernel module(s) devel common
+Group:            System Environment/Kernel
+Provides:         ${kmodname}-devel-kmod-common = %{?epoch:%{epoch}:}%{version}-%{release}
+
+%description  -n kmod-${kmodname}-devel
+This package provides the common header files to build kernel modules
+which depend on the ${kmodname} kernel module.
+%files        -n kmod-${kmodname}-devel
+%defattr(644,root,root,755)
+%{_usrsrc}/${kmodname}-%{version}
+EOF
+
+	for kernel in ${1}; do
+		local kernel_uname_r=${kernel}
+		echo "%exclude %{_usrsrc}/${kmodname}-%{version}/${kernel_uname_r}"
+	done
+
+	echo
+	echo
+}
+
+print_rpmtemplate_per_kmoddevelpkg ()
+{
+	if [[ "${1}" == "--custom" ]]; then
+		shift
+		local customkernel=true
+	elif [[ "${1}" == "--redhat" ]]; then
+		# this is needed for akmods
+		shift
+		local redhatkernel=true
+	fi
+
+	local kernel_uname_r=${1}
+	local kernel_variant="${2:+-${2}}"
+
+	cat <<EOF
+%package       -n kmod-${kmodname}-devel-${kernel_uname_r}
+Summary:          ${kmodname} kernel module(s) devel for ${kernel_uname_r}
+Group:            System Environment/Kernel
+Requires:         ${kmodname}-devel-kmod-common = %{?epoch:%{epoch}:}%{version}-%{release}
+Provides:         kmod-${kmodname}-devel-uname-r = ${kernel_uname_r}
+EOF
+
+	# second part
+	if [[ ! "${customkernel}" ]]; then
+		cat <<EOF
+Requires:         kernel-uname-r = ${kernel_uname_r}
+BuildRequires:    kernel-devel-uname-r = ${kernel_uname_r}
+EOF
+	fi
+
+	cat <<EOF
+%description  -n kmod-${kmodname}-devel-${kernel_uname_r}
+This package provides objects and symbols required to build kernel modules
+which depend on the ${kmodname} kernel modules built for the Linux
+kernel ${kernel_uname_r} for the %{_target_cpu} family of processors.
+%files        -n kmod-${kmodname}-devel-${kernel_uname_r}
+%defattr(644,root,root,755)
+%{_usrsrc}/${kmodname}-%{version}/${kernel_uname_r}
+
+
+EOF
+}
+
+print_rpmtemplate_kmodmetapkg ()
+{
+		local kernel_uname_r=${1}
+		local kernel_variant="${2:+-${2}}"
+
+		cat <<EOF
+%package      -n kmod-${kmodname}${kernel_variant}
+Summary:         Metapackage which tracks in ${kmodname} kernel module for newest kernel${kernel_variant}
+Group:           System Environment/Kernel
+
+Provides:        ${kmodname}-kmod = %{?epoch:%{epoch}:}%{version}-%{release}
+Requires:        kmod-${kmodname}-${kernel_uname_r} >= %{?epoch:%{epoch}:}%{version}-%{release}
+EOF
+	
+		if [[ ${obsolete_name} ]]; then
+			echo "Provides:        kmod-${obsolete_name}${kernel_variant} = ${obsolete_version}"
+			echo "Obsoletes:       kmod-${obsolete_name}${kernel_variant} < ${obsolete_version}"
+		fi
+
+		cat <<EOF
+
+%description  -n kmod-${kmodname}${kernel_variant}
+This is a meta-package without payload which sole purpose is to require the
+${kmodname} kernel module(s) for the newest kernel${kernel_variant}.
+to make sure you get it together with a new kernel.
+
+%files        -n kmod-${kmodname}${kernel_variant}
+%defattr(644,root,root,755)
+
+
+EOF
+}
+
+print_customrpmtemplate ()
+{
+	for kernel in ${1}
+	do
+		if 	[[ -e "/usr/src/kernels/${kernel}" ]] ; then
+			# this looks like a Fedora/RH kernel -- print a normal template (which includes the proper BR) and be happy :)
+			kernel_versions="${kernel_versions}${kernel}___%{_usrsrc}/kernels/${kernel} "
+
+			# parse kernel versions string and print template
+			local kernel_verrelarch=${kernel%%${kernels_known_variants}}
+			print_rpmtemplate_per_kmodpkg --redhat ${kernel} ${kernel##${kernel_verrelarch}}
+
+			# create development package
+			if [[ "${devel}" ]]; then
+				print_rpmtemplate_per_kmoddevelpkg --redhat ${kernel} ${kernel##${kernel_verrelarch}}
+			fi
+		elif [[ -e ${prefix}/lib/modules/"${kernel}"/build/Makefile ]] ; then 
+			# likely a user-build-kernel with available buildfiles
+			# fixme: we should check if uname from Makefile is the same as ${kernel}
+
+			kernel_versions="${kernel_versions}${kernel}___${prefix}/lib/modules/${kernel}/build/ "
+			print_rpmtemplate_per_kmodpkg --custom "${kernel}"
+
+			# create development package
+			if [[ "${devel}" ]]; then
+				print_rpmtemplate_per_kmoddevelpkg --custom "${kernel}"
+			fi
+		else
+			error_out 2 "Don't know how to handle ${kernel} -- ${prefix}/lib/modules/${kernel}/build/Makefile not found"
+		fi
+	done
+
+	# create common development package
+	if [[ "${devel}" ]]; then
+		print_rpmtemplate_kmoddevelpkg "${1}"
+	fi
+
+	# well, it's no header anymore, but who cares ;-)
+	print_rpmtemplate_header
+}
+
+
+print_rpmtemplate ()
+{
+	# create kernel_versions var
+	for kernel_version in ${kernel_versions_to_build_for}
+	do
+		kernel_versions="${kernel_versions}${kernel_version}___%{_usrsrc}/kernels/${kernel_version} "
+	done
+
+	# and print it and some other required stuff as macro
+	print_rpmtemplate_header
+
+	# now print the packages itselfs
+	for kernel in ${kernel_versions_to_build_for} ; do
+
+		local kernel_verrelarch=${kernel%%${kernels_known_variants}}
+
+		# create metapackage 
+		print_rpmtemplate_kmodmetapkg ${kernel} ${kernel##${kernel_verrelarch}}
+
+		# create package
+		print_rpmtemplate_per_kmodpkg ${kernel} ${kernel##${kernel_verrelarch}}
+
+		# create development package
+		if [[ "${devel}" ]]; then
+			print_rpmtemplate_per_kmoddevelpkg ${kernel} ${kernel##${kernel_verrelarch}}
+		fi
+	done
+
+	# create common development package
+	if [[ "${devel}" ]]; then
+		print_rpmtemplate_kmoddevelpkg "${1}"
+	fi
+}
+
+myprog_help ()
+{
+	echo "Usage: $(basename ${0}) [OPTIONS]"
+	echo $'\n'"Creates a template to be used during kmod building"
+	echo $'\n'"Available options:"
+	# FIXME	echo " --datadir <dir>     -- look for our shared files in <dir>"
+	echo " --filterfile <file>  -- filter the results with grep --file <file>"
+	echo " --for-kernels <list> -- created templates only for these kernels"
+	echo " --kmodname <file>    -- name of the kmod (required)"
+	echo " --devel              -- make kmod-devel package"
+	echo " --noakmod            -- no akmod package"
+	echo " --repo <name>        -- use buildsys-build-<name>-kerneldevpkgs"
+	echo " --target <arch>      -- target-arch (required)"
+}
+
+while [ "${1}" ] ; do
+	case "${1}" in
+		--filterfile)
+			shift
+			if [[ ! "${1}" ]] ; then
+				error_out 2 "Please provide path to a filter-file together with --filterfile" >&2
+			elif [[ ! -e "${1}" ]]; then	
+				error_out 2 "Filterfile ${1} not found" >&2
+			fi
+			filterfile="${1}"
+			shift
+			;;
+		--kmodname)
+			shift
+			if [[ ! "${1}" ]] ; then
+				error_out 2 "Please provide the name of the kmod together with --kmodname" >&2
+	 	    fi
+			# strip pending -kmod
+			kmodname="${1%%-kmod}"
+			shift
+			;;
+		--devel)
+			shift
+			devel="true"
+			;;
+		--prefix)
+			shift
+			if [[ ! "${1}" ]] ; then
+				error_out 2 "Please provide a prefix with --prefix" >&2
+		    fi
+			prefix="${1}"
+			shift
+			;;
+		--repo)
+			shift
+			if [[ ! "${1}" ]] ; then
+				error_out 2 "Please provide the name of the repo together with --repo" >&2
+	 	    fi
+			repo=${1}
+			shift
+			;;
+		--for-kernels)
+			shift
+			if [[ ! "${1}" ]] ; then
+				error_out 2 "Please provide the name of the kmod together with --kmodname" >&2
+	 		fi
+			for_kernels="${1}"
+			shift
+			;;
+		--noakmod)
+			shift
+			noakmod="true"
+			;;
+		--obsolete-name)
+			shift
+			if [[ ! "${1}" ]] ; then
+				error_out 2 "Please provide the name of the kmod to obsolte together with --obsolete-name" >&2
+	 		fi
+			obsolete_name="${1}"
+			shift
+			;;
+		--obsolete-version)
+			shift
+			if [[ ! "${1}" ]] ; then
+				error_out 2 "Please provide the version of the kmod to obsolte together with --obsolete-version" >&2
+	 		fi
+			obsolete_version="${1}"
+			shift
+			;;
+		--target)
+			shift
+			target="${1}"
+			shift
+			;;
+		--akmod)
+			shift
+			build_kernels="akmod"
+			;;
+		--newest)
+			shift
+			build_kernels="newest"
+			;;
+		--current)
+			shift
+			build_kernels="current"
+			;;
+		--help)
+			myprog_help
+			exit 0
+			;;
+		--version)
+			echo "${myprog} ${myver}"
+			exit 0
+			;;
+		*)
+			echo "Error: Unknown option '${1}'." >&2
+			usage >&2
+			exit 2
+			;;
+	esac
+done
+
+if [[ -e ./kmodtool-kernel-variants ]]; then
+	kernels_known_variants="$(cat ./kmodtool-kernel-variants)"
+elif [[ -e /usr/share/kmodtool/kernel-variants ]] ; then
+	kernels_known_variants="$(cat /usr/share/kmodtool/kernel-variants)"
+else
+	kernels_known_variants="@(smp?(-debug)|PAE?(-debug)|debug|kdump|xen|kirkwood|highbank|imx|omap|tegra)"
+fi
+
+# general sanity checks
+if [[ ! "${target}" ]]; then
+		error_out 2 "please pass target arch with --target"
+elif [[ ! "${kmodname}" ]]; then
+		error_out 2 "please pass kmodname with --kmodname"
+elif [[ ! "${kernels_known_variants}" ]] ; then
+		error_out 2 "could not determine known variants"
+elif ( [[ "${obsolete_name}" ]] && [[ ! "${obsolete_version}" ]] ) ||  ( [[ ! "${obsolete_name}" ]] && [[ "${obsolete_version}" ]] ) ; then
+		error_out 2 "you need to provide both --obsolete-name and --obsolete-version"
+fi
+
+# go
+if [[ "${for_kernels}" ]]; then
+	# this is easy:
+	print_customrpmtemplate "${for_kernels}"
+elif [[ "${build_kernels}" == "akmod" ]]; then
+	# do only a akmod package
+	print_akmodtemplate
+	print_akmodmeta
+else
+	# seems we are on out own to decide for which kernels to build
+
+	# we need more sanity checks in this case
+	if [[ ! "${repo}" ]]; then
+		error_out 2 "please provide repo name with --repo"
+	elif ! $(which buildsys-build-${repo}-kerneldevpkgs &> /dev/null) ; then
+		error_out 2 "buildsys-build-${repo}-kerneldevpkgs not found"
+	fi
+
+	# call buildsys-build-${repo}-kerneldevpkgs to get the list of kernels
+	cmdoptions="--target ${target}"
+
+	# filterfile to filter list of kernels?	
+	if [[ "${filterfile}" ]] ; then
+		 cmdoptions="${cmdoptions} --filterfile ${filterfile}"
+	fi
+
+	kernel_versions_to_build_for="$(buildsys-build-${repo}-kerneldevpkgs --${build_kernels} ${cmdoptions})"
+	returncode=$?
+	if (( ${returncode} != 0 )); then
+		error_out 2 "buildsys-build-${repo}-kerneldevpkgs failed: $(buildsys-build-${repo}-kerneldevpkgs --${build_kernels} ${cmdoptions})"
+	fi
+
+	if [[ "${build_kernels}" == "current" ]] && [[ ! "${noakmod}" ]]; then
+		print_akmodtemplate
+	fi
+
+	print_rpmtemplate 
+fi