spec ?= $(wildcard *.spec)
ifneq ($(words spec),1)
$(error More than one spec file: $(spec))
endif
outdir ?= $(CURDIR)
sourcedir = $(shell rpmbuild -E '%_sourcedir')

srpm: $(spec) /usr/bin/spectool
	spectool -R -g $(spec)
	env -C $(sourcedir) \
		sha512sum -c $(CURDIR)/sources || \
		(find $(sourcedir) -type f -delete; exit 1)
	rpmbuild -D "_srcrpmdir $(outdir)" -bs $(spec)

.PHONY: srpm

%:
	dnf -y install $@