sspaeth-r7

#!/bin/bash -xeu
# -e used in shebang and pipefail because if there's
# a failure somewhere mid-pipe chain WE NEED TO KNOW
# -u throws an error when using undefined variables
set -o pipefail

git clone https://github.com/istio/tools.git --depth 1
pushd tools/docker/build-tools
git fetch --tags
git checkout "${ISTIO_VERSION}"