Implement auto-assignment for newly created issues.

PiperOrigin-RevId: 580745663

.github/workflows/auto-assignment.yaml

@@ -0,0 +1,24 @@
+name: auto-assignment
+on:
+  issues:
+    types:
+      - opened
+  pull_request_target:
+    types: [opened]
+
+
+permissions:
+  contents: read
+  issues: write
+  pull-requests: write
+
+jobs:
+  welcome:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/github-script@v6
+        with:
+          script: |
+            const script = require('./\.github/workflows/scripts/auto-assignment.js')
+            script({github, context})

.github/workflows/scripts/auto-assignment.js

@@ -0,0 +1,60 @@
+/**
+ * @license
+ * Copyright 2023 Google LLC. 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.
+ * =============================================================================
+ */
+
+/** Automatically assign issues and PRs to users in the `assigneesList` 
+ *  on a rotating basis.
+
+  @param {!object}
+    GitHub objects can call GitHub APIs using their built-in library functions.
+    The context object contains issue and PR details.
+*/
+
+module.exports = async ({ github, context }) => {
+  let issueNumber;
+  let assigneesList;
+  // Is this an issue? If so, assign the issue number. Otherwise, assign the PR number.
+  if (context.payload.issue) {
+    //assignee List for issues.
+    assigneesList = ["tilakrayal"];
+    issueNumber = context.payload.issue.number;
+  } else {
+    //assignee List for PRs.
+    assigneesList = ['tilakrayal'];
+    issueNumber = context.payload.number;
+  }
+  console.log("assignee list", assigneesList);
+  console.log("entered auto assignment for this issue:  ", issueNumber);
+  if (!assigneesList.length) {
+    console.log("No assignees found for this repo.");
+    return;
+  }
+  let noOfAssignees = assigneesList.length;
+  let selection = issueNumber % noOfAssignees;
+  let assigneeForIssue = assigneesList[selection];
+
+  console.log(
+    "issue Number = ",
+    issueNumber + " , assigning to: ",
+    assigneeForIssue
+  );
+  return github.rest.issues.addAssignees({
+    issue_number: context.issue.number,
+    owner: context.repo.owner,
+    repo: context.repo.repo,
+    assignees: [assigneeForIssue],
+  });
+};