DOCKER_TAG ?= multiarch-test-${USER}

.PHONY: default
default: test

.PHONY:test
test:
	@echo ok

# Targets to download required qemu binaries for running on an amd64 machine
build/qemu-x86_64-static:
	./get_qemu.sh x86_64

build/qemu-arm-static:
	./get_qemu.sh arm

build/qemu-aarch64-static:
	./get_qemu.sh aarch64

# Build Docker image for host architechture (amd64)
.PHONY: build
build: build/qemu-x86_64-static
	docker build . -t ${DOCKER_TAG}-linux-amd64

# Cross build for arm architechtures
.PHONY: cross-build-arm
cross-build-arm: build/qemu-arm-static
	docker build --build-arg REPO=arm32v6 --build-arg ARCH=arm . -t ${DOCKER_TAG}-linux-arm

.PHONY: cross-build-arm
cross-build-arm64: build/qemu-aarch64-static
	docker build --build-arg REPO=arm64v8 --build-arg ARCH=aarch64 . -t ${DOCKER_TAG}-linux-arm64

# Run on host architechture
.PHONY: run
run: build
	docker run ${DOCKER_TAG}-linux-amd64

# Cross run on host architechture
.PHONY: cross-run-arm
cross-run-arm: cross-build-arm
	docker run --rm ${DOCKER_TAG}-linux-arm

.PHONY: cross-run-arm64
cross-run-arm64: cross-build-arm64
	docker run --rm ${DOCKER_TAG}-linux-arm64