#!/bin/sh

if [ $# -lt 1 -o $# -gt 2 ]
then
	echo "usage: $0 component-lib [flavor]" 1>&2
	exit 1
fi

LIBNAME="$1"

if [ -n "$2" ]
then
	recipe_file="components/$1-$2"
else
	recipe_file="components/$1"
fi

if [ ! -f "$recipe_file" ]
then
	echo "Error: $recipe_file not found" 1>&2
	exit 1
fi

if [ -z "$BUILD_DIR" ]
then
	echo "Error: BUILD_DIR= must be passed via environment" 1>&2
	exit 1
fi

set -e

mkdir -p $BUILD_DIR/$LIBNAME

# beginning of the Makefile
echo "all:	$LIBNAME.lib" > $BUILD_DIR/$LIBNAME/Makefile
echo >> $BUILD_DIR/$LIBNAME/Makefile

# shell functions to be used in the recipes

make_version() {
	case $# in
	    1)
		echo "$1_version.c:" >> $BUILD_DIR/$LIBNAME/Makefile
		echo "	../../scripts/make-version.sh $1 > $1_version.c" \
			>> $BUILD_DIR/$LIBNAME/Makefile
		;;
	    2)
		echo "$2_version.c:" >> $BUILD_DIR/$LIBNAME/Makefile
		echo "	../../scripts/make-version.sh $1 > $2_version.c" \
			>> $BUILD_DIR/$LIBNAME/Makefile
		;;
	    *)
		echo "Error: make_version takes 1 or 2 arguments" 1>&2
		exit 1
		;;
	esac
	echo >> $BUILD_DIR/$LIBNAME/Makefile
}

asm_file() {
	if [ $# != 1 ]
	then
		echo "Error: asm_file takes 1 argument" 1>&2
		exit 1
	fi
	objname=`basename "$1" .s`.obj
	helpers/makeline dep $objname "$1" >> $BUILD_DIR/$LIBNAME/Makefile
	helpers/makeline cmd ../../toolwrap/asm470 ${ASMFLAGS} "$1" '$@' \
		>> $BUILD_DIR/$LIBNAME/Makefile
	echo >> $BUILD_DIR/$LIBNAME/Makefile
	OBJS="$OBJS $objname"
}

cfile_plain() {
	if [ $# != 1 ]
	then
		echo "Error: cfile_plain takes 1 argument" 1>&2
		exit 1
	fi
	objname=`basename "$1" .c`.obj
	helpers/makeline dep $objname "$1" >> $BUILD_DIR/$LIBNAME/Makefile
	case "$objname" in
		*[A-Z]*)
			helpers/makeline cmd rm -f '$@' \
				>> $BUILD_DIR/$LIBNAME/Makefile
			;;
	esac
	helpers/makeline cmd ../../toolwrap/cl470 -q -c ${CFLAGS} ${CPPFLAGS} \
		"$1" >> $BUILD_DIR/$LIBNAME/Makefile
	case "$objname" in
		*[A-Z]*)
			objname_lc=`echo $objname | tr A-Z a-z`
			helpers/makeline cmd mv $objname_lc $objname \
				>> $BUILD_DIR/$LIBNAME/Makefile
			;;
	esac
	echo >> $BUILD_DIR/$LIBNAME/Makefile
	OBJS="$OBJS $objname"
}

cfile_str2ind() {
	if [ $# != 1 ]
	then
		echo "Error: cfile_str2ind takes 1 argument" 1>&2
		exit 1
	fi
	if [ "$USE_STR2IND" = 1 ]
	then
		objname=`basename "$1" .c`.obj
		pp_name=`echo $1 | sed -e 's/\.c$/.pp/' | tr A-Z a-z`
		pp__name=`echo $1 | sed -e 's/\.c$/.pp_/' | tr A-Z a-z`
		helpers/makeline dep $objname "$1" \
			>> $BUILD_DIR/$LIBNAME/Makefile
		case "$objname" in
			*[A-Z]*)
				helpers/makeline cmd rm -f '$@' \
					>> $BUILD_DIR/$LIBNAME/Makefile
				;;
		esac
		helpers/makeline cmd ../../toolwrap/cl470 -q -po -p? -x \
			${CPPFLAGS} "$1" >> $BUILD_DIR/$LIBNAME/Makefile
		helpers/makeline cmd ../../toolwrap/str2ind -a \
			-t ../str2ind.tab -l ../str2ind.log \
			-f "$pp_name" >> $BUILD_DIR/$LIBNAME/Makefile
		helpers/makeline cmd ../../toolwrap/cl470 -q -c ${CFLAGS} \
			"$pp__name" >> $BUILD_DIR/$LIBNAME/Makefile
		helpers/makeline cmd @rm -f "$pp_name" \
			>> $BUILD_DIR/$LIBNAME/Makefile
		helpers/makeline cmd @rm -f "$pp__name" \
			>> $BUILD_DIR/$LIBNAME/Makefile
		case "$objname" in
			*[A-Z]*)
				objname_lc=`echo $objname | tr A-Z a-z`
				helpers/makeline cmd mv $objname_lc $objname \
					>> $BUILD_DIR/$LIBNAME/Makefile
				;;
		esac
		echo >> $BUILD_DIR/$LIBNAME/Makefile
		OBJS="$OBJS $objname"
	else
		cfile_plain "$1"
	fi
}

cfile_symlink() {
	if [ $# != 1 ]
	then
		echo "Error: cfile_symlink takes 1 argument" 1>&2
		exit 1
	fi
	localcopy=`basename "$1"`
	echo "$localcopy:" >> $BUILD_DIR/$LIBNAME/Makefile
	echo "	ln -s $1 ." >> $BUILD_DIR/$LIBNAME/Makefile
	echo >> $BUILD_DIR/$LIBNAME/Makefile
	cfile_plain $localcopy
}

# invoke the recipe

SRC=../../src
OBJS=
. "$recipe_file"

# finish the Makefile

helpers/makeline dep $LIBNAME.lib ${OBJS} >> $BUILD_DIR/$LIBNAME/Makefile
echo '	../../toolwrap/ar470 r $@ $^' >> $BUILD_DIR/$LIBNAME/Makefile
echo >> $BUILD_DIR/$LIBNAME/Makefile
echo 'clean:' >> $BUILD_DIR/$LIBNAME/Makefile
echo '	rm -f *.obj *.lib *.c' >> $BUILD_DIR/$LIBNAME/Makefile