Add API documentation pre-commit hook.

hack/verify-description.sh

@@ -0,0 +1,47 @@
+#!/bin/bash
+
+# Copyright 2014 Google Inc. All rights reserved.
+#
+# 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.
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+KUBE_ROOT=$(dirname "${BASH_SOURCE}")/..
+
+cd "${KUBE_ROOT}"
+
+result=0
+
+find_files() {
+  find . -not \( \
+      \( \
+        -wholename './output' \
+        -o -wholename './_output' \
+        -o -wholename './release' \
+        -o -wholename './target' \
+        -o -wholename '*/third_party/*' \
+        -o -wholename '*/Godeps/*' \
+      \) -prune \
+    \) -name '*.go'
+}
+
+find_files | egrep "pkg/api/v.[^/]*/types\.go" | grep -v v1beta3 | while read file ; do
+    if [[ "$("${KUBE_ROOT}/hooks/description.sh" "${file}")" -eq "0" ]]; then
+      echo "API file is missing the required field descriptions: ${file}"
+      result=1
+    fi
+done
+
+exit ${result}