fsmgr := $(shell which fsmgr)

ifeq ($(fsmgr),)
$(error "no fsmgr")
endif

sudo := $(shell [ "$$(id -u)" = 0 ] || echo sudo)

rootfs ?= samizdat.seed.btrfs
patchfs ?= samizdat.patch.btrfs
# gold ?= samizdat-gold.btrfs

.DEFAULT_GOAL = all

.PHONY: all rootfs patchfs gold
all: $(rootfs) $(patchfs) $(gold)

clean:
	rm -f $(rootfs) $(patchfs) $(gold)

rootfs: $(rootfs)
patchfs: $(patchfs)
gold: $(gold)

%.patch.btrfs: %.seed.btrfs
	$(sudo) $(fsmgr) build $@

%.seed.btrfs: %.btrfs
	$(sudo) $(fsmgr) build $@

%.btrfs:
	$(sudo) $(fsmgr) build $@

$(gold): $(rootfs)
	$(sudo) $(fsmgr) build $@

$(patchfs): $(rootfs)

$(patchfs) $(rootfs):
	$(sudo) REWRITE_SOURCES_LIST=y $(fsmgr) build $@