unset SHELL # Don't let environment control which shell to use
    if isatty; then
      if [ "$(uname)" == "Darwin" ]; then
        script -q -r "${tmpFile}" "${*}"
      else
        script --flush --quiet --return "${tmpFile}" --command "${*}"
      fi
    else
      # if we aren't a TTY, run directly as script will always run with a tty, which may output content that
      # we cannot display
      set -o pipefail; "$@" 2>&1 | tee "${tmpFile}"

# See the License for the specific language governing permissions and
# limitations under the License.

WD=$(dirname "$0")
WD=$(cd "$WD"; pwd)

set -eux

# This script sets up the plain text rendered deployments for addons
# See samples/addons/README.md for more information

ADDONS="${WD}/../../samples/addons"
DASHBOARDS="${WD}/dashboards"
mkdir -p "${ADDONS}"
TMP=$(mktemp -d)

#-----------------------------------------------------------------------------
# Target: precommit
#-----------------------------------------------------------------------------
.PHONY: precommit format lint

# Target run by the pre-commit script, to automate formatting and lint
# If pre-commit script is not used, please run this manually.

The details for the deployment & installation of this plugin were pretty much lifted directly from the
[Calico CNI plugin](https://github.com/projectcalico/cni-plugin).

Specifically:

- The CNI installation script is containerized and deployed as a daemonset in k8s.  The relevant calico k8s manifests were used as the model for the istio-cni plugin's manifest:

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# Init script downloads or updates envoy and the go dependencies. Called from Makefile, which sets
# the needed environment variables.

set -o errexit
set -o nounset
set -o pipefail

if [[ "${TARGET_OUT_LINUX:-}" == "" ]]; then

		${XARGS} common/scripts/lint_copyright_banner.sh

fix-copyright-banner:
	@${FINDFILES} \( -name '*.go' -o -name '*.cc' -o -name '*.h' -o -name '*.proto' -o -name '*.py' -o -name '*.sh' -o -name '*.rs' \) \( ! \( -name '*.gen.go' -o -name '*.pb.go' -o -name '*_pb2.py' \) \) -print0 |\
		${XARGS} common/scripts/fix_copyright_banner.sh

lint-go:

		return checkBinDir(t, tempCNIBinDir, "add", "istio-cni")
	}, retry.Delay(time.Millisecond*10), retry.Timeout(time.Second*5))

	compareConfResult(resultFile, expectedOutputFile, t)

	// Test script restart by removing configuration
	if chainedCNIPlugin {
		rmCNIConfig(resultFile, t)
	} else if err := os.Remove(resultFile); err != nil {
		t.Fatalf("error removing CNI config file: %s", resultFile)
	}

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# This script builds and version stamps the output

VERBOSE=${VERBOSE:-"0"}
V=""
if [[ "${VERBOSE}" == "1" ]];then
    V="-x"
    set -x
fi

SCRIPTPATH="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"

tree_status="Clean"
if [[ -z "${IGNORE_DIRTY_TREE}" ]] && ! git diff-index --quiet HEAD --; then
  tree_status="Modified"
fi

GIT_DESCRIBE_TAG=$(git describe --tags --always)
HUB=${HUB:-"docker.io/istio"}

# used by common/scripts/gobuild.sh
echo "istio.io/istio/pkg/version.buildVersion=${VERSION:-$BUILD_GIT_REVISION}"
echo "istio.io/istio/pkg/version.buildGitRevision=${BUILD_GIT_REVISION}"
echo "istio.io/istio/pkg/version.buildStatus=${tree_status}"

# DEFAULT_KIND_IMAGE is used to set the Kubernetes version for KinD unless overridden in params to setup_kind_cluster(s)
DEFAULT_KIND_IMAGE="gcr.io/istio-testing/kind-node:v1.28.4"

# COMMON_SCRIPTS contains the directory this file is in.
COMMON_SCRIPTS=$(dirname "${BASH_SOURCE:-$0}")

function log() {
  echo -e "$(date -u '+%Y-%m-%dT%H:%M:%S.%NZ')\t$*"
}

function retry() {
  local n=1
  local max=5
  local delay=5