hack: add update-tocs.sh script

This should allow user to update toc.sh of there TEPs automatically 😉

Signed-off-by: Vincent Demeester <[email protected]>

hack/.notableofcontents

@@ -0,0 +1 @@
+teps/README.md

hack/update-toc.sh

@@ -0,0 +1,46 @@
+#!/usr/bin/env bash
+
+# Copyright 2019 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
+
+# keep in sync with hack/verify-toc.sh
+TOOL_VERSION=ee652eb78c047a7b6c7417d9324a97bb05689563
+
+# cd to the root path
+ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd -P)"
+cd "${ROOT}"
+
+# create a temporary directory
+TMP_DIR=$(mktemp -d)
+
+# cleanup
+exitHandler() (
+  echo "Cleaning up..."
+  rm -rf "${TMP_DIR}"
+)
+trap exitHandler EXIT
+
+# perform go get in a temp dir as we are not tracking this version in a go module
+# if we do the go get in the repo, it will create / update a go.mod and go.sum
+cd "${TMP_DIR}"
+GO111MODULE=on GOBIN="${TMP_DIR}" go get "github.com/tallclair/mdtoc@${TOOL_VERSION}"
+export PATH="${TMP_DIR}:${PATH}"
+cd "${ROOT}"
+
+# Update tables of contents if necessary.
+find teps -name '*.md' | grep -Fxvf hack/.notableofcontents | xargs mdtoc --inplace