NAME = dch-autoprovision
VERSION = $(shell rpmspec -q --qf '%{VERSION}' $(NAME).spec)
RELEASE = $(shell rpmspec -q --qf '%{RELEASE}' $(NAME).spec)
ARCH = $(shell uname -m)

GIT_REV ?= HEAD
O ?= .

RPM = $(O)/$(NAME)-$(VERSION)-$(RELEASE).$(ARCH).rpm
SRPM = $(0)$/(NAME)-$(VERSION)-$(RELEASE).src.rpm

define rpmbuild
	rpmbuild \
		-D '_topdir $(shell realpath "$(O)")' \
		-D '_builddir %_topdir' \
		-D '_rpmdir %_topdir' \
		-D '_sourcedir %_topdir' \
		-D '_specdir %_topdir' \
		-D '_srcrpmdir %_topdir' \
		$(RPMBUILD_ARGS)
endef

rpm: $(O)/$(ARCH)/$(RPM)

sources: $(O)/$(NAME)-$(VERSION).tar.gz

srpm: $(O)/$(SRPM)

$(O)/$(NAME)-$(VERSION).tar.gz:
	git archive --format=tar.gz --prefix $(NAME)-$(VERSION)/ $(GIT_REV) > $@

$(O)/$(ARCH)/$(RPM): $(O)/$(NAME)-$(VERSION).tar.gz
	$(rpmbuild) -bb $(NAME).spec

$(O)/$(SRPM): $(O)/$(NAME)-$(VERSION).tar.gz
	$(rpmbuild) -bs $(NAME).spec

.PHONY: rpm srpm