#!/usr/bin/make -f

SHELL    := sh -e
DEB_HOST_ARCH := $(shell dpkg-architecture -qDEB_HOST_ARCH)
SOURCE := $(shell dpkg-parsechangelog | sed -ne 's,^Source: *\(.*\)$$,\1,p')
VERSION := $(shell dpkg-parsechangelog | sed -ne 's,^Version: *\(.*\)$$,\1,p')
VERSION_UPSTREAM := $(shell echo "$(VERSION)" | sed -e 's,-[^-]*$$,,')
VERSION_BINNMU := $(shell echo "$(VERSION)" | sed -ne 's,.*+b\(.*\)$$,\1,p')

include debian/rules.defs

ifneq (,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
  DEBIAN_KERNEL_JOBS := $(subst parallel=,,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
endif
ifdef DEBIAN_KERNEL_JOBS
  MAKEFLAGS += -j$(DEBIAN_KERNEL_JOBS)
endif

.NOTPARALLEL:

source: debian/control
	dh_testdir
	$(MAKE) -f debian/rules.gen source

setup: debian/control
	dh_testdir
	$(MAKE) -f debian/rules.gen setup_$(DEB_HOST_ARCH)

build: build-arch build-indep

build-arch: debian/control
	dh_testdir
	$(MAKE) -f debian/rules.gen build-arch_$(DEB_HOST_ARCH)

build-indep: debian/control
	dh_testdir
	$(MAKE) -f debian/rules.gen build-indep

binary:	binary-indep binary-arch

binary-arch:
	dh_testdir
	$(MAKE) -f debian/rules.gen binary-arch_$(DEB_HOST_ARCH)

binary-indep:
	dh_testdir
	$(MAKE) -f debian/rules.gen binary-indep

DIR_ORIG = ../orig/$(SOURCE)-$(VERSION_UPSTREAM)
TAR_ORIG_NAME = $(SOURCE)_$(VERSION_UPSTREAM).orig.tar.xz
TAR_ORIG = $(firstword $(wildcard ../$(TAR_ORIG_NAME)) $(wildcard ../orig/$(TAR_ORIG_NAME)))

orig: $(DIR_ORIG)
	rsync --delete --exclude /debian --exclude .svk --exclude .svn --exclude .git --link-dest=$(DIR_ORIG)/ -a $(DIR_ORIG)/ .
	QUILT_PATCHES='$(CURDIR)/debian/patches' QUILT_PC=.pc quilt push --quiltrc - -a -q --fuzz=0

$(DIR_ORIG):
ifeq ($(TAR_ORIG),)
	$(error Cannot find orig tarball $(TAR_ORIG_NAME))
else
	mkdir -p ../orig
	tar -C ../orig -xaf $(TAR_ORIG)
endif

maintainerclean:
	rm -f debian/config.defines.dump debian/control debian/control.md5sum debian/linux-* debian/rules.gen debian/po/*.po
	rm -rf $(filter-out debian .svk .svn .git, $(wildcard * .[^.]*))

clean: debian/control
	dh_testdir
	rm -rf $(BUILD_DIR) $(STAMPS_DIR) debian/lib/python/debian_linux/*.pyc debian/lib/python/debian_linux/__pycache__ $$(find debian -maxdepth 1 -type d -name 'linux-*') debian/*-modules-*-di* debian/kernel-image-*-di* debian/xen-linux-system-*
	dh_clean

CONTROL_FILES = debian/changelog $(wildcard debian/templates/*.in)
CONTROL_FILES += debian/config/defines $(wildcard debian/config/*/defines) $(wildcard debian/config/*/*/defines)
CONTROL_FILES += $(wildcard debian/installer/*/kernel-versions) $(wildcard debian/installer/*/package-list) debian/installer/package-list
debian/control debian/rules.gen: debian/bin/gencontrol.py $(CONTROL_FILES)
ifeq ($(wildcard debian/control.md5sum),)
	$(MAKE) -f debian/rules debian/control-real
else ifeq ($(VERSION_BINNMU),)
	md5sum --check debian/control.md5sum --status || \
		$(MAKE) -f debian/rules debian/control-real
else
	grep -v debian/changelog debian/control.md5sum | md5sum --check - --status || \
		$(MAKE) -f debian/rules debian/control-real
endif

debian/control-real: debian/bin/gencontrol.py $(CONTROL_FILES)
	$<
	md5sum $^ > debian/control.md5sum
	@echo
	@echo This target is made to fail intentionally, to make sure
	@echo that it is NEVER run during the automated build. Please
	@echo ignore the following error, the debian/control file has
	@echo been generated SUCCESSFULLY.
	@echo
	exit 1

.PHONY: clean build setup binary-indep binary-arch binary
