# stabilize-9430.B - Wed Mar 29, 2017
STABLE_COMMIT_ID=5a086f5c9a5edd56d5dc81e11af10597aaab4218

project_name=depthcharge
project_dir=$(CURDIR)/depthcharge
project_git_repo=https://chromium.googlesource.com/chromiumos/platform/depthcharge
project_config_file=$(project_dir)/.config
output_dir=$(project_dir)/build
libpayload_dir=$(abspath $(CURDIR)/../../libpayload)
libpayload_install_dir=$(output_dir)/lp_$(BOARD)

VBOOT_SOURCE ?= $(abspath $(CURDIR)/../../../3rdparty/vboot)

TAG-$(DEPTHCHARGE_MASTER)=origin/master
TAG-$(DEPTHCHARGE_STABLE)=$(STABLE_COMMIT_ID)
TAG-$(DEPTHCHARGE_REVISION)=$(DEPTHCHARGE_REVISION_ID)

# todo: consider reverting this once stable moves past the commit below
payload_target=depthcharge
payload_target_old=$(payload_target)_unified
payload_namechange=74a07395eb9976747055b4ac7a0ae7dcb603a6f4

unexport KCONFIG_AUTOHEADER
unexport KCONFIG_AUTOCONFIG
unexport KCONFIG_DEPENDENCIES
unexport KCONFIG_SPLITCONFIG
unexport KCONFIG_TRISTATE
unexport KCONFIG_NEGATIVES
unexport src srck obj objk

BOARD:=$(notdir $(CONFIG_MAINBOARD_DIR))

ifeq ($(OVERRIDE_DEFCONFIG),y)
$(info Depthcharge: Using default defconfig for libpayload)
libpayload_config=$(libpayload_dir)/configs/defconfig
else
libpayload_config=$(libpayload_dir)/configs/config.$(BOARD)
endif

all: build

$(project_dir):
	echo "    Cloning $(project_name) from Git"
	git clone $(project_git_repo)

fetch: $(project_dir)
	cd $(project_dir); git show $(TAG-y) >/dev/null 2>&1 ;	if [ $$? -ne 0 ] || \
		[ "$(TAG-y)" = "origin/master" ]; then \
		echo "    Fetching new commits from the $(project_name) git repo"; \
		git fetch; fi

checkout: fetch
	echo "    Checking out $(project_name) revision $(TAG-y)"
	cd $(project_dir) ; git checkout master; git branch -D coreboot 2>/dev/null; git checkout -b coreboot $(TAG-y)

$(libpayload_install_dir): $(project_dir)
	test -f $(libpayload_config)|| \
		(echo "Error: $(libpayload_config) is not present" && \
		false)
	cp $(libpayload_config) $(libpayload_dir)/.config
	$(MAKE) -C $(libpayload_dir) olddefconfig
	$(MAKE) -C $(libpayload_dir)
	$(MAKE) -C $(libpayload_dir) install DESTDIR=$(libpayload_install_dir)
#	rm -f $(libpayload_dir)/.config

config: $(libpayload_install_dir) checkout
	echo "    CONFIG     project_name $(TAG-y)"
	export VERSION=$$(cd depthcharge && \
		git describe --tags --long --dirty 2>/dev/null || \
		echo "unknown") ; \
	cd $(project_dir) && $(MAKE) BOARD=$(BOARD) LIBPAYLOAD_DIR=$(libpayload_install_dir)/libpayload \
		VB_SOURCE=$(VBOOT_SOURCE) defconfig

build: config
	echo "    MAKE       $(project_name) $(TAG-y)"
	cd $(project_dir) && \
		git merge-base --is-ancestor $(payload_namechange) $(TAG-y) >/dev/null 2>&1 && \
			$(MAKE) BOARD=$(BOARD) LIBPAYLOAD_DIR=$(libpayload_install_dir)/libpayload \
				VB_SOURCE=$(VBOOT_SOURCE) PATH="$(abspath ../../../build/util/cbfstool):$$PATH" $(payload_target) || \
			$(MAKE) BOARD=$(BOARD) LIBPAYLOAD_DIR=$(libpayload_install_dir)/libpayload \
				VB_SOURCE=$(VBOOT_SOURCE) PATH="$(abspath ../../../build/util/cbfstool):$$PATH" $(payload_target_old)

clean:
	test -d $(output_dir) && rm -rf $(output_dir) || exit 0

distclean:
	rm -rf $(project_dir)

print-repo-info:
	echo "$(project_git_repo) $(project_dir)"

.PHONY: checkout config build clean distclean clone fetch print-repo-info