feat(ci): split script and action to separate files

Author: Samuel Fialka

.github/scripts/backlog-cleanup.js

@@ -0,0 +1,149 @@
+/**
+ * GitHub Action script for managing issue backlog.
+ * 
+ * Behavior:
+ * - Pull Requests are skipped (only opened issues are processed)
+ * - Skips issues with 'to-be-discussed' label.
+ * - Closes issues with label 'awaiting-response' or without assignees, 
+ *   with a standard closure comment.
+ * - Sends a Friendly Reminder comment to assigned issues without 
+ *   exempt labels that have been inactive for 90+ days.
+ * - Avoids sending duplicate Friendly Reminder comments if one was 
+ *   posted within the last 7 days.
+ */
+
+const dedent = (strings, ...values) => {
+    const raw = typeof strings === 'string' ? [strings] : strings.raw;
+    let result = '';
+    raw.forEach((str, i) => {
+        result += str + (values[i] || '');
+    });
+    const lines = result.split('\n');
+    const minIndent = Math.min(...lines.filter(l => l.trim()).map(l => l.match(/^\s*/)[0].length));
+    return lines.map(l => l.slice(minIndent)).join('\n').trim();
+};
+
+async function fetchAllOpenIssues(github, owner, repo) {
+    const issues = [];
+    let page = 1;
+
+    while (true) {
+        const response = await github.rest.issues.listForRepo({
+            owner,
+            repo,
+            state: 'open',
+            per_page: 100,
+            page,
+        });
+
+        const data = response.data || [];
+        if (data.length === 0) break;
+        const onlyIssues = data.filter(issue => !issue.pull_request);
+        issues.push(...onlyIssues);
+
+        if (data.length < 100) break;
+        page++;
+    }
+    return issues;
+}
+
+const shouldSendReminder = (issue, exemptLabels, closeLabels) => {
+  const hasExempt = issue.labels.some(l => exemptLabels.includes(l.name));
+  const hasClose = issue.labels.some(l => closeLabels.includes(l.name));
+  return issue.assignees.length > 0 && !hasExempt && !hasClose;
+};
+
+
+module.exports = async ({ github, context }) => {
+    const { owner, repo } = context.repo;
+    const issues = await fetchAllOpenIssues(github, owner, repo);
+    const now = new Date();
+    const thresholdDays = 90;
+    const exemptLabels = ['to-be-discussed'];
+    const closeLabels = ['awaiting-response'];
+    const sevenDays = 7 * 24 * 60 * 60 * 1000;
+
+    let totalClosed = 0;
+    let totalReminders = 0;
+    let totalSkipped = 0;
+
+    for (const issue of issues) {
+        const isAssigned = issue.assignees && issue.assignees.length > 0;
+        const lastUpdate = new Date(issue.updated_at);
+        const daysSinceUpdate = Math.floor((now - lastUpdate) / (1000 * 60 * 60 * 24));
+
+        if (daysSinceUpdate < thresholdDays) {
+            totalSkipped++;
+            continue;
+        }
+
+        const { data: comments } = await github.rest.issues.listComments({
+            owner,
+            repo,
+            issue_number: issue.number,
+            per_page: 10,
+        });
+
+        const recentFriendlyReminder = comments.find(comment =>
+            comment.user.login === 'github-actions[bot]' &&
+            comment.body.includes('⏰ Friendly Reminder') &&
+            (now - new Date(comment.created_at)) < sevenDays
+        );
+        if (recentFriendlyReminder) {
+            totalSkipped++;
+            continue;
+        }
+
+        if (issue.labels.some(label => exemptLabels.includes(label.name))) {
+            totalSkipped++;
+            continue;
+        }
+
+        if (issue.labels.some(label => closeLabels.includes(label.name)) || !isAssigned) {
+            await github.rest.issues.createComment({
+                owner,
+                repo,
+                issue_number: issue.number,
+                body: '⚠️ This issue was closed automatically due to inactivity. Please reopen or open a new one if still relevant.',
+            });
+            await github.rest.issues.update({
+                owner,
+                repo,
+                issue_number: issue.number,
+                state: 'closed',
+            });
+            totalClosed++;
+            continue;
+        }
+
+        if (shouldSendReminder(issue, exemptLabels, closeLabels)) {
+            const assignees = issue.assignees.map(u => `@${u.login}`).join(', ');
+            const comment = dedent`
+                ⏰ Friendly Reminder
+
+                Hi ${assignees}!
+
+                This issue has had no activity for ${daysSinceUpdate} days. If it's still relevant:
+                - Please provide a status update
+                - Add any blocking details
+                - Or label it 'awaiting-response' if you're waiting on something
+
+                This is just a reminder; the issue remains open for now.`;
+
+            await github.rest.issues.createComment({
+                owner,
+                repo,
+                issue_number: issue.number,
+                body: comment,
+            });
+            totalReminders++;
+        }
+    }
+
+    console.log(dedent`
+        === Backlog cleanup summary ===
+        Total issues processed: ${issues.length}
+        Total issues closed: ${totalClosed}
+        Total reminders sent: ${totalReminders}
+        Total skipped: ${totalSkipped}`);
+};

.github/workflows/backlog-bot.yml

@@ -0,0 +1,28 @@
+name: "Backlog Management Bot"
+
+on:
+  schedule:
+    - cron: '0 2 * * *' # Run daily at 2 AM UTC
+  workflow_dispatch:
+  pull_request:
+    types: [opened, edited, reopened, synchronize]
+
+permissions: 
+  issues: write
+  contents: read
+
+jobs:
+  backlog-bot:
+    name: "Check for stale issues"
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Run backlog cleanup script
+        uses: actions/github-script@v7
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          script: |
+            const script = require('./.github/scripts/backlog-cleanup.js');
+            await script({ github, context });