[infra] Use a modified no-response workflow in flutter/packages

.github/scripts/no-response.js

@@ -0,0 +1,128 @@
+// Copyright 2013 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module.exports = async ({ github, context }) => {
+  const owner = context.repo.owner;
+  const repo = context.repo.repo;
+  const labelName = 'waiting for response';
+  const daysUntilClose = 21;
+
+  const prCloseComment = `This pull request is being closed because it has not been updated in the last 21 days after a request for more information.
+
+If you are still working on this, please feel free to reopen it or file a new pull request.
+
+Thanks for your contribution.`;
+
+  const now = new Date();
+  const closeDate = new Date(now.getTime() - (daysUntilClose * 24 * 60 * 60 * 1000));
+
+  // GitHub's pulls REST API does not support filtering by label. In GitHub's
+  // data model, pull requests are treated as issues, so we query the issues
+  // endpoint with the target label. Since issues are disabled in flutter/packages,
+  // this will only return pull requests.
+  const prs = await github.paginate(github.rest.issues.listForRepo, {
+    owner,
+    repo,
+    state: 'open',
+    labels: labelName,
+    per_page: 100,
+  });
+
+  for (const pr of prs) {
+    if (!pr.pull_request) {
+      continue;
+    }
+
+    // Fetch timeline events to find label date
+    const events = await github.paginate(github.rest.issues.listEvents, {
+      owner,
+      repo,
+      issue_number: pr.number,
+      per_page: 100,
+    });
+
+    const labelEvent = events.reverse().find(
+      event =>
+        event.event === 'labeled' &&
+        event.label?.name === labelName
+    );
+
+    if (!labelEvent) {
+      continue; // Skip if label not found in events
+    }
+
+    const labeledAt = new Date(labelEvent.created_at);
+    let isResponse = false;
+
+    // Check for author comments after label
+    const comments = await github.paginate(github.rest.issues.listComments, {
+      owner,
+      repo,
+      issue_number: pr.number,
+      since: labeledAt.toISOString(),
+      per_page: 100,
+    });
+
+    for (const comment of comments) {
+      if (pr.user?.id && comment.user?.id === pr.user.id && new Date(comment.created_at) > labeledAt) {
+        isResponse = true;
+        break;
+      }
+    }
+
+    // Check for commits after label
+    if (!isResponse) {
+      const commits = await github.paginate(github.rest.pulls.listCommits, {
+        owner,
+        repo,
+        pull_number: pr.number,
+        per_page: 100,
+      });
+
+      for (const commit of commits) {
+        const commitDate = new Date(commit.commit?.committer?.date || commit.commit?.author?.date);
+        if (commitDate > labeledAt) {
+          isResponse = true;
+          break;
+        }
+      }
+    }
+
+    if (isResponse) {
+      console.log(`Removing label from #${pr.number} as author responded.`);
+      await github.rest.issues.removeLabel({
+        owner,
+        repo,
+        issue_number: pr.number,
+        name: labelName,
+      });
+
+      continue; // Skip stale check
+    }
+
+    // Stale check
+    if (pr.state === 'open') {
+      if (labeledAt < closeDate) {
+        if (pr.locked) {
+          console.log(`Skipping #${pr.number} because the conversation is locked.`);
+          continue;
+        }
+
+        console.log(`Closing #${pr.number} due to no response.`);
+        await github.rest.issues.createComment({
+          owner,
+          repo,
+          issue_number: pr.number,
+          body: prCloseComment,
+        });
+        await github.rest.issues.update({
+          owner,
+          repo,
+          issue_number: pr.number,
+          state: 'closed',
+        });
+      }
+    }
+  }
+};

.github/workflows/no-response.yaml

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+# Copyright 2013 The Flutter Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+name: No Response
+
+on:
+  schedule:
+    # Schedule for every 30 minutes.
+    - cron: '*/30 * * * *'
+  workflow_dispatch:
+
+# By specifying the access of one of the scopes, all of those that are not
+# specified are set to 'none'.
+permissions:
+  issues: write
+  pull-requests: write
+
+jobs:
+  noResponse:
+    runs-on: ubuntu-latest
+    if: ${{ github.repository == 'flutter/packages' }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        with:
+          persist-credentials: false
+      - name: No Response
+        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        with:
+          github-token: ${{ github.token }}
+          script: |
+            const script = require('./.github/scripts/no-response.js');
+            await script({github, context});