VERSION := "invalid"
GITHUB_BASEURL := "https://github.com/moby/buildkit/releases/download"

.PHONY: clean

all: amd64/buildkitd arm64/buildkitd

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

buildkit-v$(VERSION).linux-%.tar.gz:
	wget -nc --progress=dot:mega "$(GITHUB_BASEURL)/v$(VERSION)/$@" -O "$@"
	sha256sum -c --ignore-missing sha256sums.txt

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