# step 3: copy the needed features to $(BUILDDIR)
#         (only regarding the needed subprofiles)

ifndef BUILDDIR
$(error BUILDDIR not defined)
endif

include $(BUILDDIR)/distcfg.mk

# first rsync what's static, and make backups (*~) --
# these might signal of file clashes (or plain dirt);
# second, care for toplevel and tagged script dirs;
# then handle two more ways of implementing a feature
#
# NB: some subprofiles will be specified as "src/dst"
#     -- then both src/ and dst/ can hold the addons;
#     still both pieces go into a single destination

### {image-,}scripts.d/ get rsynced twice :-/
### still we don't want the trimmed-down case

all:
	@echo "** starting feature configuration"
	@if [ -n "$(GLOBAL_DEBUG)" ]; then \
		echo "** target subprofiles: $(SUBPROFILES)"; \
		echo "** requested features: $(FEATURES)"; \
	fi
	@for feat in $(FEATURES); do \
		pushd "$$feat" && \
		for sub in / $(SUBPROFILES); do \
			src="$${sub%/*}"; \
			dst="$${sub#*/}"; \
			if [ -d "$$src" ]; then rsync -qab "$$src/" "$(BUILDDIR)/$$dst/"; fi; \
			if [ -d "$$dst" ]; then rsync -qab "$$dst/" "$(BUILDDIR)/$$dst/"; fi; \
			for scr in {image-,}scripts.d; do \
				scriptdir="$(BUILDDIR)/$$dst/$$scr/"; \
				if [ -d "$$scriptdir" ]; then \
					if [ -d "$$scr" ]; then \
						rsync -qab "$$scr/" "$$scriptdir/"; \
					fi; \
					if [ -d "tagged/$$scr" ]; then \
						pushd "tagged/$$scr" && \
						echo "($$src || $$dst)" \
						| tags2lists . \
						| xargs -r cp -v -pLt "$$scriptdir" --; \
						popd; \
					fi; \
				fi; \
			done; \
			type -t git >&/dev/null && \
			pushd "$(BUILDDIR)/$$dst/" && \
			git add . && \
			if [ -n "$$dst" ]; then \
				the="$$sub subprofile"; \
			else \
				the="toplevel"; \
			fi; \
			git commit -qam "$$feat feature ($$the part)" ||:; \
			popd; \
		done; \
		if [ -x "generate.sh" ]; then sh generate.sh; fi; \
		if [ -s "generate.mk" ]; then $(MAKE) -f generate.mk; fi; \
		type -t git >&/dev/null && \
		pushd "$(BUILDDIR)/" && \
		git add . && \
		git commit -qam "$$feat feature generation complete" ||:; \
		popd; \
		popd; \
	done
	@find "$(BUILDDIR)/" -name '*~' \
	| sed "s,$(BUILDDIR)/,** warning: file clash: ," >&2

# FIXME: drop or fix regarding undefined BUILDDIR being ok
#help:
#	@echo "** available features:"
#	@grep -h '^use/' */config.mk | fmt -sw"$$((COLUMNS>>1))" | column -t