#!/bin/bash

#
# Build a new directory of modules based on an inclusion list.
# The includsion list format must be a bash regular expression.
#
# usage: $0 ROOT INCLUSION_LIST
# example: $0 debian/build/build-virtual debian.linaro/control.d/virtual.inclusion-list
ROOT=$1
ILIST=$2

NROOT=${ROOT}.new

#
# Prep a destination directory.
#
mkdir -p ${NROOT}
rsync -a --exclude="*.ko" ${ROOT}/ ${NROOT}

cat ${ILIST} |while read i
do
	#
	# 'find' blurts a warning if it cannot find any ko files.
	#
	if echo "$i" | grep '\*' > /dev/null
	then
		(cd ${ROOT}; eval find "${i}" -name "*.ko") |while read f
		do
			mkdir -p ${NROOT}/`dirname $f`
			cp ${ROOT}/$f ${NROOT}/$f
		done
	else
		if [ -f "${ROOT}/$i" ]
		then
			mkdir -p ${NROOT}/`dirname $i`
			cp ${ROOT}/$i ${NROOT}/$i
		else
			echo Warning: Could not find ${ROOT}/$i
		fi
	fi

done

#
# Cleanup
#
rm -rf ${ROOT}
mv ${NROOT} ${ROOT}

exit 0