include /usr/share/dpkg/default.mk

SHELL := bash -e

include debian/rules.defs

export DH_OPTIONS

export DEB_RULES_REQUIRES_ROOT ?= no

GENCONTROL_ARGS := -v@signedtemplate_binaryversion@
BUILDDEB_ARGS := -Zxz $(if $(filter pkg.linux.quick,$(DEB_BUILD_PROFILES)),-z0)

stamp = [ -d $(dir $@) ] || mkdir $(dir $@); touch $@

define dh_binary_pre
	dh_testroot
	dh_prep
	dh_installdirs
endef

define dh_binary_post
	dh_install $(DH_INSTALL_ARGS)
	# Workaround #1068189. By Debian policy and aligned debhelper behaviour /usr/share/doc/package
	# is permitted to be a symbolic link to another directory in /usr/share/doc only if the two
	# packages come from the same source package. The package build will fail with the new debhelper
	# version since debhelper/13.15. As the linux-signed-* packages are quite special in the eco-
	# system, make the workaround to fallback to the old behaviour until it is agreed on how to
	# resolve the situation policy conformant.
	# https://www.debian.org/doc/debian-policy/ch-docs.html#copyright-information
	$(if $(INSTALLDOCS_LINK_DOC),
		mkdir -p debian/$(PACKAGE_NAME)/usr/share/doc && ln -sf $(INSTALLDOCS_LINK_DOC) debian/$(PACKAGE_NAME)/usr/share/doc/$(PACKAGE_NAME),
		dh_installdocs)
	dh_installchangelogs
	dh_installexamples
	dh_installman
	dh_installudev
	dh_bugfiles
	dh_ucf
	dh_lintian
	dh_icons
	dh_link
	dh_compress
	dh_fixperms
	dh_missing
	dh_strip $(DH_STRIP_ARGS) -Xvmlinux -Xvmlinuz
	dh_makeshlibs -Xvmlinux -Xvmlinuz
	dh_shlibdeps $(DH_SHLIBDEPS_ARGS)
	dh_installdeb
	if command -v dh_movetousr >/dev/null; then dh_movetousr; fi
	dh_gencontrol -- $(GENCONTROL_ARGS)
	dh_md5sums
	dh_builddeb -- $(BUILDDEB_ARGS)
endef

build-indep:

$(STAMPS_DIR)/install_$(ARCH)_$(FEATURESET)_$(FLAVOUR): REAL_VERSION = $(ABINAME)$(LOCALVERSION)
$(STAMPS_DIR)/install_$(ARCH)_$(FEATURESET)_$(FLAVOUR): IMAGE_PACKAGE_NAME = linux-image-$(REAL_VERSION)-unsigned
$(STAMPS_DIR)/install_$(ARCH)_$(FEATURESET)_$(FLAVOUR): SIGNATURE_DIR = debian/signatures/$(IMAGE_PACKAGE_NAME)
$(STAMPS_DIR)/install_$(ARCH)_$(FEATURESET)_$(FLAVOUR): INSTALL_DIR=$(BUILD_DIR)/install_$(ARCH)_$(FEATURESET)_$(FLAVOUR)
$(STAMPS_DIR)/install_$(ARCH)_$(FEATURESET)_$(FLAVOUR):
	mkdir -p $(INSTALL_DIR)/boot
	rsync -a $(patsubst %,/boot/%-$(REAL_VERSION),config System.map $(IMAGE_INSTALL_STEM)) \
		$(INSTALL_DIR)/boot/
	sbattach --attach $(SIGNATURE_DIR)/boot/vmlinuz-$(REAL_VERSION).sig \
		$(INSTALL_DIR)/boot/vmlinuz-$(REAL_VERSION)
	mkdir -p $(INSTALL_DIR)/lib/modules/$(REAL_VERSION)
	rsync -a $(addprefix /lib/modules/$(REAL_VERSION)/,kernel modules.builtin modules.builtin.modinfo modules.order) \
		$(INSTALL_DIR)/lib/modules/$(REAL_VERSION)/
# Copy any device tree files
	if [ -d /usr/lib/linux-image-$(REAL_VERSION) ]; then \
		mkdir -p $(INSTALL_DIR)/usr/lib/linux-image-$(REAL_VERSION); \
		rsync -a /usr/lib/linux-image-$(REAL_VERSION)/ \
			$(INSTALL_DIR)/usr/lib/linux-image-$(REAL_VERSION)/; \
	fi
	$(stamp)

build_image:

binary_image: DH_OPTIONS = -p$(PACKAGE_NAME)
binary_image: DH_STRIP_ARGS = --no-automatic-dbgsym
binary_image: REAL_VERSION = $(ABINAME)$(LOCALVERSION)
binary_image: IMAGE_PACKAGE_NAME = linux-image-$(REAL_VERSION)-unsigned
binary_image: DIR2 = $(BUILD_DIR)/install_$(ARCH)_$(FEATURESET)_$(FLAVOUR)
binary_image: PACKAGE_DIR = debian/$(PACKAGE_NAME)
binary_image: $(STAMPS_DIR)/install_$(ARCH)_$(FEATURESET)_$(FLAVOUR)
binary_image:
	$(dh_binary_pre)
	dh_install --sourcedir=$(DIR2) boot
	dh_install --sourcedir=$(DIR2) lib
	if [ -d $(DIR2)/usr ]; then dh_install --sourcedir=$(DIR2) usr; fi
# Copy bug scripts but change the info file to refer to the right package
	mkdir -p $(PACKAGE_DIR)/usr/share/bug/$(PACKAGE_NAME)
	rsync -a /usr/share/bug/$(IMAGE_PACKAGE_NAME)/ \
		$(PACKAGE_DIR)/usr/share/bug/$(PACKAGE_NAME)/
	sed -i -e 's/^PACKAGE_NAME=.*/PACKAGE_NAME=$(PACKAGE_NAME)/' \
		-e 's/^PACKAGE_VERSION=.*/PACKAGE_VERSION=$(PACKAGE_VERSION)/' \
		$(PACKAGE_DIR)/usr/share/bug/$(PACKAGE_NAME)/info
	$(dh_binary_post)

build_meta:

binary_meta:
	$(dh_binary_pre)
	$(dh_binary_post)

build_installer:

binary_installer: REAL_VERSION = $(ABINAME)$(LOCALVERSION)
binary_installer: export KW_DEFCONFIG_DIR=debian/installer
binary_installer: export KW_CONFIG_DIR=debian/installer
binary_installer: export SOURCEDIR = $(BUILD_DIR)/install_$(ARCH)_$(FEATURESET)_$(FLAVOUR)
binary_installer: DH_OPTIONS_IMAGE = -p$(IMAGE_PACKAGE_NAME) --sourcedir=$(SOURCEDIR)
binary_installer: $(STAMPS_DIR)/install_$(ARCH)_$(FEATURESET)_$(FLAVOUR)
binary_installer:
	$(dh_binary_pre)
	DH_OPTIONS="$(DH_OPTIONS_IMAGE)" dh_install boot/$(IMAGE_INSTALL_STEM)-$(REAL_VERSION)
	DH_OPTIONS="$(DH_OPTIONS_IMAGE)" dh_install lib/modules/$(REAL_VERSION)/modules.builtin
	DH_OPTIONS="$(DH_OPTIONS_IMAGE)" dh_install lib/modules/$(REAL_VERSION)/modules.order
ifneq ($(filter arm64 armel armhf mipsel mips64el mipsr6 mipsr6el mips64r6 mips64r6el riscv64,$(ARCH)),)
	DH_OPTIONS="$(DH_OPTIONS_IMAGE)" dh_install usr/lib/linux-image-$(REAL_VERSION)
endif
	kernel-wedge copy-modules $(ABINAME) $(FLAVOUR) $(REAL_VERSION)
	kernel-wedge find-dups $(REAL_VERSION)
	kernel-wedge find-unpackaged $(REAL_VERSION) $(REAL_VERSION)
	kernel-wedge check $$(dh_listpackages)
	dh_fixperms
	dh_gencontrol -- $(GENCONTROL_ARGS)
	dh_builddeb -- $(BUILDDEB_ARGS)

.PHONY: build_% binary_%