# Top-level package build for Cryptech Alpha board.

export CRYPTECH_VERSION := 2.0

HEAD_TIME := $(shell git show -s --format=%ct HEAD)
HEAD_HASH := $(shell git rev-parse HEAD)

PACKAGE_NAME	 := cryptech-alpha
PACKAGE_VERSION  := ${CRYPTECH_VERSION}~${HEAD_TIME}~${HEAD_HASH}

export GNUPGHOME := /home/aptbot/gnupg

REPO_BASE	 := /home/aptbot/alpha
REPO_UMASK	 := 002

PBUILDER_BASE	 := ${HOME}/pbuilder
PBUILDER_TARGETS := debian/jessie/i386 debian/jessie/amd64 ubuntu/xenial/i386 ubuntu/xenial/amd64

REPO_UPLOAD_USER := aptbot
REPO_UPLOAD_URI	 := rsync://apt.cryptech.is/alpha/

# Yes, we really are putting the firmware tarball into the source package.
# We want to supply the firmware in both source and binary form, to save users
# the trouble of all the cross compilation and Verilog synthesis, and the Alpha
# firmware is the same regardless of the host platform, so including the firmware
# tarball in the source package lets us simplify installation for the user.

FIRMWARE_TARBALL := source/cryptech-alpha-firmware.tar.gz
BITSTREAM	 := build/core/platform/alpha/build/alpha_fmc.bit
ELVES		 := build/sw/stm32/projects/bootloader/bootloader.elf build/sw/stm32/projects/hsm/hsm.elf
FIRMWARE_BINARY	 := ${ELVES} ${ELVES:.elf=.bin}
FIRMWARE_ALL	 := ${BITSTREAM} ${FIRMWARE_BINARY}

RTL_SOURCE	 := $(shell find source/core -name .git -prune -o -type f -print)
SW_SOURCE	 := $(shell find source/sw source/user -name .git -prune -o -type f -print)

# Command to generate a new changelog containing one entry.
# Does nothing if the changelog already exists.

DCH =	test -f debian/changelog || \
	EDITOR=true VISUAL=true TZ=UTC DEBEMAIL='APT Builder Robot <aptbot@cryptech.is>' \
	dch --create --package ${PACKAGE_NAME} --newversion '${PACKAGE_VERSION}' \
	'$(strip Version ${CRYPTECH_VERSION} package for Cryptech Alpha development board.)'

all: init firmware dsc pbuilder homebrew

enchilada: all upload

init:
	git submodule update --init --recursive

clean:
	git clean -dfx
	git submodule foreach --recursive git clean -dfx

sandblast: clean
	git submodule deinit -f .

firmware: shadow ${FIRMWARE_TARBALL}

shadow:
	./build-shadow-tree.py

${FIRMWARE_TARBALL}: ${BITSTREAM} $(sort ${ELVES} ${ELVES:.elf=.bin})
	./build-firmware-package.py $(basename $@) $^
	gzip -9f $(basename $@)

bitstream: ${BITSTREAM}

${BITSTREAM}: ${RTL_SOURCE}
	${MAKE} -C build/core/platform/alpha/build

${ELVES:.elf=.bin}: shadow elves

elves:
	${MAKE} -C build/sw/stm32 distclean bootloader hsm

dsc:
	cd source; ${DCH}
	cd source; debuild -S -uc -us

pbuilder:
	rm -f ${PBUILDER_BASE}/*result/*
	umask ${REPO_UMASK}; \
	for target in ${PBUILDER_TARGETS}; do echo $$target | tr '/' ' '; done | \
	while read dist code arch; do \
		reprepro -b ${REPO_BASE}/$$dist -A $$arch list $$code ${PACKAGE_NAME} | awk '{v = $$3} END {exit v != "${PACKAGE_VERSION}"}' && continue; \
		pbuilder-dist $$code $$arch build ${PACKAGE_NAME}_${PACKAGE_VERSION}.dsc; \
		reprepro -b ${REPO_BASE}/$$dist include $$code ${PBUILDER_BASE}/$${code}-$${arch}_result/${PACKAGE_NAME}_${PACKAGE_VERSION}_$${arch}.changes; \
	done

RSYNC	:= rsync --rsh 'ssh -l ${REPO_UPLOAD_USER}' --archive --itemize-changes

upload:
	${RSYNC} --ignore-existing       ${REPO_BASE}/ ${REPO_UPLOAD_URI}
	${RSYNC} --delete --delete-delay ${REPO_BASE}/ ${REPO_UPLOAD_URI}

.PHONY: all init clean firmware shadow bitstream elves dsc pbuilder homebrew upload enchilada sandblast