# step 4: build the distribution image

# package lists are needed for installer and live-install images
METADIR := files/Metadata

# preparation targets of ../../build-distro/lib/build-distro.mk
WHATEVER += metadata

# args: name, suffix, command
define dump-THEM
if [ -n "$($(1)_$(2))" ]; then echo -e "\n## $(1)_$(2)"; $(3) $($(1)_$(2)); fi;
endef

dump-PACKAGES = $(call dump-THEM,$(1),PACKAGES,echo)
dump-LISTS = $(call dump-THEM,$(1),LISTS,cat)

# BASE_PACKAGES, BASE_LISTS and whatever else goes into base install;
# thus construct requisite .base packagelist for alterator-pkg
metadata-.base:
	@cd $(call list,/); \
	{ \
		echo "## generated by features.in/metadata/lib/metadata.mk"; \
		$(foreach p,SYSTEM COMMON THE BASE,$(call dump-PACKAGES,$(p))) \
		$(foreach l,THE BASE,$(call dump-LISTS,$(l))) \
		if [ -n "$(DOT_BASE)" ]; then \
			echo -e "\n## DOT_BASE\n$(DOT_BASE)"; \
		fi; \
	} | sed -re '/^[^[:space:]#]/ s/[[:space:]]+/\n/g' > .base

# see also alterator-pkg (backend3/pkg-install);
# we only tar up what's up to it
metadata: metadata-.base
	@mkdir -p $(METADIR); \
	tar -C $(PKGDIR) -cvf - \
		$(call rlist,$(MAIN_GROUPS) .base) \
		$(call rgroup,$(MAIN_GROUPS)) \
	> $(METADIR)/pkg-groups.tar