vendor files

vendor/k8s.io/kubernetes/hack/verify-no-vendor-cycles.sh

@@ -0,0 +1,43 @@
+#!/bin/bash
+
+# Copyright 2017 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.
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+KUBE_ROOT=$(dirname "${BASH_SOURCE}")/..
+
+staging_repos=($(ls "${KUBE_ROOT}/staging/src/k8s.io/"))
+staging_repos_pattern=$(IFS="|"; echo "${staging_repos[*]}")
+
+failed=false
+for i in $(find vendor/ -type d); do
+  deps=$(go list -f '{{range .Deps}}{{.}}{{"\n"}}{{end}}' ./$i 2> /dev/null || echo "")
+  deps_on_main=$(echo "${deps}" | grep -v "k8s.io/kubernetes/vendor/" | grep "k8s.io/kubernetes" || echo "")
+  if [ -n "${deps_on_main}" ]; then
+    echo "Package ${i} has a cyclic dependency on the main repository."
+    failed=true
+  fi
+  deps_on_staging=$(echo "${deps}" | grep "k8s.io/kubernetes/vendor/k8s.io" | grep -E "k8s.io\/${staging_repos_pattern}\>" || echo "")
+  if [ -n "${deps_on_staging}" ]; then
+    echo "Package ${i} has a cyclic dependency on staging repository packages: ${deps_on_staging}"
+    failed=true
+  fi
+done
+
+if [[ "${failed}" == "true" ]]; then
+  exit 1
+fi