From ad70acf018210ce4b7580d196e765d32c4beee59 Mon Sep 17 00:00:00 2001
From: Davanum Srinivas <davanum@gmail.com>
Date: Sat, 18 Apr 2020 20:44:06 -0400
Subject: [PATCH] add update/verify for go.mod/sum files in hack/tools

Signed-off-by: Davanum Srinivas <davanum@gmail.com>
---
 hack/update-hack-tools.sh | 43 ++++++++++++++++++++++++++++++++++++++
 hack/verify-hack-tools.sh | 44 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 87 insertions(+)
 create mode 100755 hack/update-hack-tools.sh
 create mode 100755 hack/verify-hack-tools.sh

diff --git a/hack/update-hack-tools.sh b/hack/update-hack-tools.sh
new file mode 100755
index 00000000000..81f58af7f22
--- /dev/null
+++ b/hack/update-hack-tools.sh
@@ -0,0 +1,43 @@
+#!/usr/bin/env bash
+
+# Copyright 2020 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[0]}")/..
+source "${KUBE_ROOT}/hack/lib/init.sh"
+
+# Explicitly opt into go modules, even though we're inside a GOPATH directory
+export GO111MODULE=on
+
+# Detect problematic GOPROXY settings that prevent lookup of dependencies
+if [[ "${GOPROXY:-}" == "off" ]]; then
+  kube::log::error "Cannot run hack/update-hack-tools.sh with \$GOPROXY=off"
+  exit 1
+fi
+
+kube::golang::verify_go_version
+
+pushd "${KUBE_ROOT}/hack/tools" >/dev/null
+  echo "=== tidying go.mod/go.sum in hack/tools"
+  go mod edit -fmt
+  go mod tidy
+  go mod vendor
+
+  LICENSE_ROOT="${PWD}" VENDOR_LICENSE_FILE="LICENSES" "${KUBE_ROOT}/hack/update-vendor-licenses.sh"
+  rm -rf vendor
+popd >/dev/null
diff --git a/hack/verify-hack-tools.sh b/hack/verify-hack-tools.sh
new file mode 100755
index 00000000000..c70436023ff
--- /dev/null
+++ b/hack/verify-hack-tools.sh
@@ -0,0 +1,44 @@
+#!/usr/bin/env bash
+
+# Copyright 2020 The Kubernetes Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
+source "${KUBE_ROOT}/hack/lib/init.sh"
+
+_tmpdir="$(kube::realpath "$(mktemp -d -t verify-hack-tools.XXXXXX)")"
+kube::util::trap_add "rm -rf ${_tmpdir}" EXIT
+
+_tmp_gopath="${_tmpdir}/go"
+_tmp_kuberoot="${_tmp_gopath}/src/k8s.io/kubernetes"
+_tmp_hack="${_tmp_gopath}/src/k8s.io/kubernetes/hack"
+mkdir -p "${_tmp_hack}/.."
+cp -a "${KUBE_ROOT}/hack" "${_tmp_hack}/.."
+
+pushd "${_tmp_kuberoot}" >/dev/null
+./hack/update-hack-tools.sh
+popd
+
+diff=$(diff -Naupr "${KUBE_ROOT}/hack" "${_tmp_kuberoot}/hack" || true)
+
+if [[ -n "${diff}" ]]; then
+  echo "${diff}" >&2
+  echo >&2
+  echo "Run ./hack/update-hack-tools.sh" >&2
+  exit 1
+fi