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#!/bin/sh

# Generic code for traversing the source code directory structure according to
# the Makeinfo files.

usage() {
	cat << EOF
Usage:
	recurse <project> <root>

With the parameters:
	<project>
		The name identifying the project, used as prefix in variables in
	   	'Makeproject' and 'Makeinfo'.

	<root>
		The root directory, containing 'Makeproject'.
EOF
}

if [ $# -ne 2 ]; then
	usage >&2
	exit 1
fi

BUILD_PROJECT=$1
BUILD_ROOT=${2%/}/

# $1 - The prefix up to this point
# $2 - The name of the current subdir
recurse_subdir() {
	local REC_PREFIX SUBDIRS SUBDIR CFILES CXXFILES HFILES MFILES RCFILES FILE
	eval local ${BUILD_PROJECT}_CFILES \
			${BUILD_PROJECT}_CXXFILES \
			${BUILD_PROJECT}_HFILES \
			${BUILD_PROJECT}_MFILES \
			${BUILD_PROJECT}_RCFILES \
			${BUILD_PROJECT}_SUBDIRS

	REC_PREFIX="$1$2/"
	if [ "$REC_PREFIX" = "/" ]; then
		REC_PREFIX=
	fi
	
	eval ${BUILD_PROJECT}_CFILES=
	eval ${BUILD_PROJECT}_CXXFILES=
	eval ${BUILD_PROJECT}_HFILES=
	eval ${BUILD_PROJECT}_MFILES=
	eval ${BUILD_PROJECT}_RCFILES=
	eval ${BUILD_PROJECT}_SUBDIRS=

	. "${BUILD_ROOT}${REC_PREFIX}Makeinfo"

	eval CFILES=\$${BUILD_PROJECT}_CFILES
	eval CXXFILES=\$${BUILD_PROJECT}_CXXFILES
	eval HFILES=\$${BUILD_PROJECT}_HFILES
	eval MFILES=\$${BUILD_PROJECT}_MFILES
	eval RCFILES=\$${BUILD_PROJECT}_RCFILES

	for FILE in $CFILES; do
		echo "C	${OBJDIR}${REC_PREFIX}$FILE"
	done
	for FILE in $CXXFILES; do
		echo "CXX	${OBJDIR}${REC_PREFIX}$FILE"
	done
	for FILE in $HFILES; do
		echo "H	${OBJDIR}${REC_PREFIX}$FILE"
	done
	for FILE in $MFILES; do
		echo "M	${OBJDIR}${REC_PREFIX}$FILE"
	done
	for FILE in $RCFILES; do
		echo "RC	${OBJDIR}${REC_PREFIX}$FILE"
	done

	eval SUBDIRS=\$${BUILD_PROJECT}_SUBDIRS

	for SUBDIR in $SUBDIRS; do
		echo "DIRIN	${OBJDIR}${REC_PREFIX}$SUBDIR"
		recurse_subdir "$REC_PREFIX" "$SUBDIR"
		echo "DIROUT	${OBJDIR}${REC_PREFIX}$SUBDIR"
	done
}

. "${BUILD_ROOT}Makeproject"

recurse_subdir "" ""