VERSION := "invalid"
GITHUB_BASEURL := "https://github.com/prometheus/blackbox_exporter/releases/download"

.PHONY: clean

all: i386/blackbox_exporter amd64/blackbox_exporter arm64/blackbox_exporter

%/blackbox_exporter: blackbox_exporter-$(VERSION).linux-%.tar.gz
	mkdir -p $(shell echo $@ | sed 's#/.*##')
	tar -C $(shell echo $@ | sed 's#/.*##') -xzf "$<" --strip-components=1

blackbox_exporter-$(VERSION).linux-%.tar.gz:
	wget -nc --progress=dot:mega "$(GITHUB_BASEURL)/v$(VERSION)/$(shell echo $@ | sed s/i386/386/)" -O "$@"
	sha256sum -c --ignore-missing sha256sums.txt

clean:
	rm -rf i386
	rm -rf amd64
	rm -rf arm64
	rm -f blackbox_exporter-$(VERSION).linux-*.tar.gz