build.sh

#!/bin/bash -eu

imagetag="docker-acap:1.0"

function exit_with_message {
	echo "$1"
	echo
	echo "Usage: $0 ARCH [ --plain ] [ --cache ] [ --image-tag IMAGETAG ]"
	echo
	echo "ARCH must be 'armv7hf' or 'aarch64'"
	echo "--plain will simplify the Docker progress bar."
	echo "--cache will enable Docker's caching mechanism."
	echo "--image-tag sets the supplied tag of the image. Default is $imagetag."
	exit 1
}

arch="${1:-}"

case "$arch" in
armv7hf | aarch64) ;;
*) exit_with_message "Invalid architecture '$arch'" ;;
esac
shift

progress_arg=
cache_arg=--no-cache

while (($#)); do
	case "$1" in
	--plain) progress_arg="--progress plain" ;;
	--cache) cache_arg= ;;
	--image-tag)
		shift
		imagetag="$1"
		;;
	*) exit_with_message "Invalid argument '$1'" ;;
	esac
	shift
done

# Build and copy out the acap
# shellcheck disable=SC2086
docker buildx build --build-arg ARCH="$arch" \
	--build-arg HTTP_PROXY="${HTTP_PROXY:-}" \
	--build-arg HTTPS_PROXY="${HTTPS_PROXY:-}" \
	--build-arg BUILD_WITH_SANITIZERS="${BUILD_WITH_SANITIZERS:-}" \
	--file Dockerfile \
	$progress_arg \
	$cache_arg \
	--tag "$imagetag" \
	--output build-"$arch" .