# step 3: copy package lists referenced in distro configuration
#         (and only those!) over to $(BUILDDIR)

ifndef BUILDDIR
$(error BUILDDIR not defined)
endif

include $(BUILDDIR)/distcfg.mk
SUFFIX := pkg/lists
TARGET := $(BUILDDIR)/$(SUFFIX)

all: $(TARGET) $(GLOBAL_DEBUG)
	# env | sort -u | grep _LISTS | xargs cp
	@$(foreach V, \
		$(filter %_LISTS,$(sort $(.VARIABLES))), \
		$(if $(filter environment% file,$(origin $V)),\
			$(shell cp --parents -at $(TARGET) \
				-- $(value $V))))
	# construct .base packagelist for alterator-pkg
	@( \
		echo "## generated via pkg.in/lists/Makefile"; \
		[ -n "$(BRANDING)" ] && { \
			echo "branding-$(BRANDING)-release"; \
		}; \
		[ -n "$(BASE_LISTS)" ] && { \
			echo "### BASE_LISTS"; \
			cat $(BASE_LISTS); \
		}; \
		[ -n "$(COMMON_PACKAGES)" ] && { \
			echo "## COMMON_PACKAGES"; \
			echo "$(COMMON_PACKAGES)"; \
		}; \
		[ -n "$(BASE_PACKAGES)" ] && { \
			echo "## BASE_PACKAGES"; \
			echo "$(BASE_PACKAGES)"; \
		}; \
	) | sed -re '/^[^[:space:]#]/ s/[[:space:]]+/\n/g' >$(TARGET)/.base
	@[ -z "$(GROUPS)" ] || cp -at $(TARGET) $(GROUPS)
	@type -t git >&/dev/null && \
	cd $(TARGET) && \
	git add . && \
	git commit -qam "requested $(SUFFIX) copied over" ||:

# do beforehand as foreach gets expanded before recipe execution
$(TARGET):
	@mkdir -p $(TARGET)

# figure out *_LISTS variables and print them out nicely
debug:
	@echo -e $(foreach V, \
		$(filter %_LISTS,$(sort $(.VARIABLES))), \
		$(if $(filter environment% file,$(origin $V)),\
			$(shell echo '\\n"**"' $V: $(value $V)))) '\n'