INPUTS=("${@}")
TARGET_ARCH=${TARGET_ARCH:-amd64}
DOCKER_WORKING_DIR=${INPUTS[${#INPUTS[@]}-1]}
FILES=("${INPUTS[@]:0:${#INPUTS[@]}-1}")

set -eu;

# detect_arch returns "amd64", "arm64", or "" depending on if the file is arch specific
function detect_arch() {
  FILE=${1}
  extension="${FILE##*.}"
  if [[ "${extension}" == "deb" ]]; then
    arch="$(dpkg-deb --info "${FILE}" | grep Arch | cut -d: -f 2 | cut -c 2-)"