PREFIX := /usr/local
START_SCRIPT := start
START_SCRIPT_SRC := start.tmpl
INSTALLATION_NAME := docker-aria2
DOCKERFILE := Dockerfile
TAG = docker-aria2

build: build-docker $(START_SCRIPT)

build-docker: $(DOCKERFILE) start-openvpn.sh
	docker pull alpine
	docker build --tag=$(TAG) .
	@echo "This is a marker for the docker build." > $@

$(START_SCRIPT): $(START_SCRIPT_SRC)
	sed -e "s/{TAG}/$(TAG)/g" -e "s/{INSTALLATION_NAME}/$(INSTALLATION_NAME)/g" $< > $@
	chmod +x $@

shellcheck.log: $(START_SCRIPT)
	@echo "# Begin shellcheck log" > $@
	shellcheck $< >> $@

shellcheck: shellcheck.log

check: shellcheck

clean:
	$(RM) build-docker shellcheck.log $(START_SCRIPT)

install: build
	install -D --mode=755 $(START_SCRIPT) $(PREFIX)/bin/$(INSTALLATION_NAME)

.PHONY: check clean