BR2_EXTERNAL=../br_external

all: sdcard.img

sdcard.img: root_overlay buildroot/.config root_overlay/root/.ssh/authorized_keys
	make -C buildroot all
	cp buildroot/output/images/sdcard.img sdcard.img

root_overlay: root_overlay/bin/test.py
root_overlay: root_overlay/etc/door_tokens
root_overlay: root_overlay/etc/dropbear/dropbear_ecdsa_host_key
root_overlay: root_overlay/root/.ssh/authorized_keys
root_overlay: root_overlay/root/key

root_overlay/root/.ssh/authorized_keys: ~/.ssh/id_rsa.pub
	cp ^< $@

buildroot/.config: config
	ln -sf ../config buildroot/.config

root_overlay/etc/door_tokens:
	mkdir -p `dirname $@`
	touch $@

root_overlay/root/key:
	mkdir -p `dirname $@`
	dd if=/dev/urandom of=$@ bs=1 count=16

root_overlay/bin/test.py: door_control/door.py
	mkdir -p `dirname $@`
	cp $< $@

root_overlay/etc/dropbear/dropbear_ecdsa_host_key:
	mkdir -p `dirname $@`
	ssh-keygen -t ecdsa -f $@

clean:
	make -C buildroot clean
	rm -f sdcard.img
	rm -f root_overlay/root/.ssh/authorized_keys
	rm -f root_overlay/bin/test.py

menuconfig:
	make -C buildroot menuconfig

.PHONY: all clean sdcard.img menuconfig root_overlay