#! /bin/sh

# This script does a rough check to see if any modules listed for udebs
# are still provided by current kernels.

# The script currently only works for Linux kernels, not for kfreebsd.

# IMPORTANT - IMPORTANT - IMPORTANT
# Make sure that kernels for *all* architectures are extracted before running
# the script. This can be done by running './massbuild kbuild -k'.

# IMPORTANT - IMPORTANT - IMPORTANT
# The output of this script should be used as an indication only.
# Always double-check before removing any modules, ideally also by looking
# if a driver is still available in upstream kernel source.
# Also keep in mind backwards compatibility with recent kernel versions.

for mfile in kernel-wedge/modules/*; do
	echo "Processing $mfile"
	modules=$(grep -v "^#" $mfile | sed -r "s/[[:space:]]+[?-].*//")
	for module in $modules; do
		m=$(echo $module | sed "s/[-_]/[-_]/g")
		if [ -z "$(find */lib/modules/ -name $m.ko)" ]; then
			echo "$module"
		fi
	done
done

for dir in linux-kernel-di-*; do
	echo
	arch=$(echo $dir | cut -d- -f4)
	echo "Architecture $arch"
	if [ ! -d $arch/lib/modules ]; then
		echo "FATAL: no extracted kernels for $arch"
		continue
	fi
	for mfile in linux-kernel-di-$arch-2.6/modules/*/*; do
		echo "Processing $mfile"
		modules=$(grep -v "^#" $mfile | sed -r "s/[[:space:]]+[?-].*//")
		for module in $modules; do
			m=$(echo $module | sed "s/[-_]/[-_]/g")
			if [ -z "$(find $arch/lib/modules/ -name $m.ko)" ]; then
				echo "$module"
			fi
		done
	done
done