#!/usr/bin/make -f
#
# Generally nothing needs to be modified below this line
#
SHELL    := sh -e
DEB_HOST_ARCH  := $(shell dpkg-architecture -qDEB_HOST_ARCH)
DEB_BUILD_ARCH := $(shell dpkg-architecture -qDEB_BUILD_ARCH)
srcver   := $(shell dpkg-parsechangelog | awk '/^Version:/ {print $$2}')
VERSION  := $(word 1,$(subst -, ,$(srcver)))
MAJOR    := $(word 1,$(subst ., ,$(VERSION))).$(word 2,$(subst ., ,$(VERSION)))

include debian/rules.defs

setup: debian/setup-stamp
debian/setup-stamp: $(BUILD_DIR) $(STAMPS_DIR)
	dh_testdir
	$(MAKE) -f debian/rules.gen setup-$(DEB_HOST_ARCH)
	touch $@

build: debian/control debian/build-stamp
debian/build-stamp: $(BUILD_DIR) $(STAMPS_DIR) debian/setup-stamp
	dh_testdir
	$(MAKE) -f debian/rules.gen build-$(DEB_HOST_ARCH)
	touch $@

$(BUILD_DIR) $(STAMPS_DIR):
	@[ -d $@ ] || mkdir $@

orig: ../orig/linux-$(MAJOR)-$(VERSION)
	rsync --delete --exclude debian --exclude .svn -av ../orig/linux-$(MAJOR)-$(VERSION)/ .

../orig/linux-$(MAJOR)-$(VERSION):
	if [ -f "../linux-$(MAJOR)_$(VERSION).orig.tar.gz" ]; then \
		mkdir -p ../orig; \
		tar -C ../orig -xzf ../linux-$(MAJOR)_$(VERSION).orig.tar.gz; \
	else \
		echo "Can't find orig tarball." >&2; \
		exit 1; \
	fi

clean: unpatch
	dh_testdir
	rm -f version.Debian
	cd debian; rm -f *.kpatches.arch
	rm -rf $(BUILD_DIR) $(STAMPS_DIR)
	dh_clean

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

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

binary:	binary-indep binary-arch

#
# Makes the master debian/control file by substituting
# variable values into the template.
#
debian/control debian/rules.gen: debian/bin/gencontrol.py debian/changelog $(wildcard debian/templates/control.*.in)
	if [ -f debian/control.md5sum ]; then \
		if md5sum $^ | diff - debian/control.md5sum > /dev/null; then true; else \
			$(MAKE) -f debian/rules debian/control-real; \
		fi \
	else \
		$(MAKE) -f debian/rules debian/control-real; \
	fi

debian/control-real: debian/bin/gencontrol.py debian/changelog $(wildcard debian/templates/control.*.in)
	debian/bin/gencontrol.py
	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 patch unpatch source tree