#
# Rules for using UTK to manipulate the flash image
#

# Check go version. We need go 1.11 or newer
GOVERSION:=$(shell go version | grep ^go | cut -d ' ' -f 3 | cut -c 3-)
GOMAJOR:=$(shell echo $(GOVERSION) | cut -d '.' -f 1)
GOMINOR:=$(shell echo $(GOVERSION) | cut -d '.' -f 2)
GOVERSIONREQ:=1.11
GOMAJORREQ:=1
GOMINORREQ:=11

$(shell \
	if [ "$(GOMAJOR)" -lt "$(GOMAJORREQ)" ]; then \
		echo >&2 "Go version $(GOVERSION) too old, please install go $(GOVERSIONREQ) or newer"; \
		exit 1; \
	elif [ "$(GOMAJOR)" -eq "$(GOMAJORREQ)" ]; then \
		if [ "$(GOMINOR)" -lt "$(GOMINORREQ)" ]; then \
			echo >&2 "Go version $(GOVERSION) too old, please install go $(GOVERSIONREQ) or newer"; \
			exit 1; \
		fi; \
	fi; \
)

bin/utk:
	go get github.com/linuxboot/fiano/cmds/utk
	cp $(GOPATH)/bin/utk $@