appcache>contents = $(shell grep -vFx -e "*" -e "CACHE MANIFEST" -e "CACHE:" -e "NETWORK:" -e "FALLBACK:" $(1) | grep -v -e "^\#" )

.PHONY: all clean

.SECONDEXPANSION:
%.appcache: %.appcache.in $$(call appcache>contents,$$*.appcache.in)
	sed "s/<Last-Updated>$$/Last-Updated: `date -u +'%Y-%m-%dT%H:%M:%SZ'`/" $< > $@

all: heroik.appcache

clean:
	$(RM) heroik.appcache