rm "${PATCH_OUT}"
      echo "WARNING: patch file was too large to persist ($(du -h "${PATCH_OUT}"))"
      return 0
    fi
    outName="artifacts/${PATCH_OUT#"${ARTIFACTS}"/}"
    patchFile="${PROW_ARTIFACTS_BASE:-https://gcsweb.istio.io/gcs/istio-prow}/pr-logs/pull/${REPO_OWNER}_${REPO_NAME}/${PULL_NUMBER}/${JOB_NAME}/${BUILD_ID}/${outName}"
    echo "You can also try applying the patch file from the build artifacts:

# limitations under the License.

set -e

ec=0
for fn in "$@"; do
  if ! grep -L -q -e "Apache License, Version 2" "${fn}"; then
    echo "Missing license: ${fn}"
    ec=1
  fi

  if ! grep -L -q -e "Copyright" "${fn}"; then
    echo "Missing copyright: ${fn}"
    ec=1
  fi
done

# rely on go build cache
ISTIOCTL=bin/istioctl
go build -o $ISTIOCTL ./istioctl/cmd/istioctl

for f in samples/**/*.yaml; do
  if grep -q -e "{{" "$f" ; then
    echo "Skipping check for helm template $f"
    continue
  else
    echo "Validating $f..."
  $ISTIOCTL validate -x \
    -f "$f"
  fi

  else
    # Postsubmit or periodic
    url="https://prow.istio.io/view/gs/istio-prow/pr-logs/${JOB_NAME}/${BUILD_ID},"
  fi
  # Use printf instead of echo to avoid spaces between args
  printf '%s' "ci.pipeline.id=${JOB_NAME},"\
    "ci.pipeline.type=${JOB_TYPE},"\
    "ci.pipeline.run.url=${url}"\
    "ci.pipeline.run.number=${BUILD_ID},"\