#!/bin/sh
#
# DKMS post-install kernel hook.
#
# Arguments passed to this script: $1 pkgname, $2 version.
#
PKGNAME="$1"
VERSION="$2"
ARCH=$(uname -m)

if [ ! -x /usr/sbin/dkms ]; then
	exit 0
fi

if [ ! -e /lib/modules/${VERSION}/build/include ] ; then
	echo "WARNING: cannot build DKMS modules! missing kernel headers package for ${VERSION}."
	exit 0
fi

# Check available DKMS modules
for _mod_ in /var/lib/dkms/*; do
	[ ! -d ${_mod_} ] && continue
	module=$(basename ${_mod_})
	for _modver_ in ${_mod_}/*; do
		if [ -d ${_modver_} -a ! -h ${_modver_} ]; then
			modulever=$(basename ${_modver_})
			echo "Available DKMS module: ${module}-${modulever}."
			if [ -z "${DKMS_MODULES}" ]; then
				DKMS_MODULES="${module} ${modulever}"
			else
				DKMS_MODULES="${DKMS_MODULES} ${module} ${modulever}"
			fi
		fi
	done
done

set -- ${DKMS_MODULES}
while [ $# -ne 0 ]; do
	module="$1"
	modulever="$2"

	status=$(dkms status -m ${module} -v ${modulever} -k ${VERSION})
	if [ $(echo "$status"|grep -c ": built") -eq 0 ]; then
		# Check if the module is still there.
		if [ ! -f usr/src/${module}-${modulever}/dkms.conf ]; then
			echo "Skipping unexistent DKMS module: ${module}-${modulever}."
			shift 2
			continue
		fi
		# Build the module
		echo -n "Building DKMS module: ${module}-${modulever}... "
		dkms build -q -m ${module} -v ${modulever} -k ${VERSION} -a ${ARCH}
		rval=$?
		if [ $rval -eq 9 ]; then
			echo "skipped!"
			shift; shift
			continue
		elif [ $rval -eq 0 ]; then
			echo "done."
		else
			exit $?
		fi
		status=$(dkms status -m ${module} -v ${modulever} -k ${VERSION})
	fi

	#if the module is built (either pre-built or just now), install it
	if [ $(echo "$status"|grep -c ": built") -eq 1 ] &&
	   [ $(echo "$status"|grep -c ": installed") -eq 0 ]; then
		echo -n "Installing DKMS module: ${module}-${modulever}... "
	        dkms install -q -m ${module} -v ${modulever} -k ${VERSION} -a ${ARCH}
		if [ $? -eq 0 ]; then
			echo "done."
		else
			echo "FAILED!"
			exit $?
		fi
	fi
	shift; shift
done

exit 0