build: add update split repo script to update the README and delete t…

…he rest of the repo (#3377)

* build: add update split repo script to update the README and delete the rest of the repo

Co-authored-by: Jeff Ching <chingor@google.com>

bin/migrate-split-repo.sh

@@ -41,3 +41,6 @@ ${SCRIPT_DIR}/migrate-git-history.sh \
   "${PACKAGE_PATH}" \
   ".kokoro,.github,.trampolinerc,SECURITY.md,renovate.json,samples" \
   ".github/.OwlBot.yaml,samples/quickstart.js,samples/test/quickstart.js,samples/test/quickstart.test.js,system-test/test/quickstart.test.js,system-test/test/quickstart.js,samples/README.md,samples/package.json,samples/generated"
+
+# run the script to update the split repo
+${SCRIPT_DIR}/update-split-repo.sh ${SPLIT_REPO} ${ARTIFACT_NAME}

bin/update-split-repo.sh

@@ -0,0 +1,85 @@
+#!/bin/bash
+# Copyright 2022 Google LLC
+#
+# 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
+#
+#     https://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 -e
+
+if [ $# -lt 2 ]
+then
+  echo "Usage: $0 <split-repo-name> <target-path>"
+  exit 1
+fi
+
+# repo name (e.g. nodejs-asset)
+SPLIT_REPO=$1
+# destination directory (e.g. google-cloud-asset)
+ARTIFACT_NAME=$2
+
+rm -rf "/tmp/${SPLIT_REPO}"
+git clone "git@github.com:googleapis/${SPLIT_REPO}.git" "/tmp/${SPLIT_REPO}"
+
+cd "/tmp/${SPLIT_REPO}"
+
+git checkout -b 'removeOwlBotAndUpdateREADME'
+
+shopt -s extglob
+
+# Delete everything first that's not the samples, README.md, and git folder
+rm -rf !("samples"|"README.md"|".git") 
+rm -rf "/tmp/${SPLIT_REPO}/.[!.git]*"
+rm -rf "/tmp/${SPLIT_REPO}/.github"
+
+IGNORE_README_TXT="# Copyright 2022 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an \"AS IS\" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import synthtool.languages.node as node
+
+node.owlbot_main(templates_excludes=[
+README.md'
+])"
+
+OWLBOT_PY="/tmp/${SPLIT_REPO}/owlbot.py"
+
+echo "$IGNORE_README_TXT" >> "$OWLBOT_PY"
+
+# Update the README
+README_MD="/tmp/${SPLIT_REPO}/README.md"
+
+echo -e "'**_THIS REPOSITORY IS DEPRECATED. ALL OF ITS CONTENT AND HISTORY HAS BEEN MOVED TO [GOOGLE-CLOUD-NODE](https://github.com/googleapis/google-cloud-node/tree/main/packages/${ARTIFACT_NAME})_**'\n$(cat $README_MD)" > "$README_MD"
+
+git add .
+git commit -m 'build: update README for deprecation notice and delete all files except samples'
+
+git push -f --set-upstream origin removeOwlBotAndUpdateREADME
+
+# create pull request
+if gh --help > /dev/null
+then
+  gh pr create --title "build: update README for deprecation notice and delete all files except samples"
+else
+  hub pull-request -m "build: update README for deprecation notice and delete all files except samples"
+fi
+
+rm -rf "/tmp/${SPLIT_REPO}"