Fix verification of boilerplate, style and file headers

hack/verify-gofmt.sh

@@ -0,0 +1,43 @@
+#!/bin/bash
+
+# Copyright 2014 The Kubernetes Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# 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.
+
+# GoFmt apparently is changing @ head...
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+KUBE_ROOT=$(dirname "${BASH_SOURCE}")/..
+
+cd "${KUBE_ROOT}"
+
+find_files() {
+  find . -not \( \
+      \( \
+        -wholename './.git' \
+        -o -wholename '*/vendor/*' \
+        -o -wholename '*bindata.go' \
+      \) -prune \
+    \) -name '*.go'
+}
+
+GOFMT="gofmt -s"
+bad_files=$(find_files | xargs $GOFMT -l)
+if [[ -n "${bad_files}" ]]; then
+  echo "!!! '$GOFMT' needs to be run on the following files: "
+  echo "${bad_files}"
+  exit 1
+fi