# publication.
#
# Args:
#   $1 version string from command line
# Vars set:
#   KUBE_VERSION
function set_binary_version() {
  if [[ "${1}" =~ "/" ]]; then
    KUBE_VERSION=$(curl -fsSL --retry 5 "https://dl.k8s.io/${1}.txt")
  else
    KUBE_VERSION=${1}
  fi
  export KUBE_VERSION
}

# Use the script from inside the Kubernetes tarball to fetch the client and

set -o nounset
set -o pipefail

KUBE_ROOT=$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)

KUBERNETES_RELEASE_URL="${KUBERNETES_RELEASE_URL:-https://dl.k8s.io}"

function detect_kube_release() {
  if [[ -n "${KUBE_VERSION:-}" ]]; then
    return 0  # Allow caller to explicitly set version
  fi

  if [[ ! -e "${KUBE_ROOT}/version" ]]; then
    echo "Can't determine Kubernetes release." >&2