IMG_ID=$(shell dd if=/dev/urandom bs=1k count=1 2> /dev/null | LC_CTYPE=C tr -cd "a-z0-9" | cut -c 1-22)


build: target/x86_64-unknown-linux-musl/release/envsub.gpg target/x86_64-unknown-linux-musl/release/envsub.sha256

.PHONY: publish
publish:
	docker build --tag stephenc/envsub:latest .
	docker push stephenc/envsub:latest

.PHONY: clean
clean:
	cargo clean

target/x86_64-unknown-linux-musl/release/envsub: Cargo.lock Cargo.toml src/main.rs
	mkdir -p target/x86_64-unknown-linux-musl/release
	docker build --tag envsub:latest .
	docker run --rm envsub:latest cat /bin/envsub \
		> target/x86_64-unknown-linux-musl/release/envsub

%.gpg: %
	gpg -a --output $@ --detach-sig $<

%.sha256: %
	cat $< | openssl dgst -sha256 > $@