BUILD_DIR=.build

all: kernel qemu

kernel: kernel.build
	cp $(BUILD_DIR)/kernel/*.deb $(BUILD_DIR)

qemu: qemu.build
	cp $(BUILD_DIR)/qemu/*.deb $(BUILD_DIR)

kernel.build: kernel.prepare
	cd $(BUILD_DIR)/kernel && make deb

qemu.build: kernel.prepare
	cd $(BUILD_DIR)/qemu/qemu
	meson subprojects download || meson subprojects download
	cd .. && make deb

kernel.prepare: | submodule
	mkdir -p $(BUILD_DIR)/kernel/patches/kernel
	ln -sf $$(readlink -f submodules/pve-kernel/debian)     $(BUILD_DIR)/kernel/
	ln -sf $$(readlink -f submodules/pve-kernel/submodules) $(BUILD_DIR)/kernel/
	cp -r submodules/pve-kernel/patches/kernel/*            $(BUILD_DIR)/kernel/patches/kernel
	cp -r patches/kernel/*                                  $(BUILD_DIR)/kernel/patches/kernel
	cp    submodules/pve-kernel/*                           $(BUILD_DIR)/kernel/ || true

qemu.prepare: | submodule
	mkdir -p $(BUILD_DIR)/qemu/debian/
	ln -sf $$(readlink -f submodules/pve-qemu/qemu)       $(BUILD_DIR)/qemu/
	cp -r submodules/pve-qemu/debian/*                    $(BUILD_DIR)/qemu/debian
	cp -r patches/qemu/*                                  $(BUILD_DIR)/qemu/debian/patches/pve
	cd $(BUILD_DIR)/qemu/debian/patches && find pve -type f | grep 'pve/9' >> series && cd -
	cp    submodules/pve-qemu/*                           $(BUILD_DIR)/qemu/ || true

.PHONY: submodule
submodule:
	git submodule update --init --recursive

.PHONY: clean
clean:
	rm -rf $(BUILD_DIR)