feat(ci): add a backlog clean up bot

.github/scripts/backlog-cleanup.js

@@ -0,0 +1,257 @@
+/**
+ * GitHub Action script for managing issue backlog.
+ * 
+ * Behavior:
+ * - Pull Requests are skipped (only opened issues are processed)
+ * - Skips issues with labels defined in 'exemptLabels'
+ * - Closes issues with labels defined in 'closeLabels' 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.
+ * - Marks issues labeled 'Type: Question' by adding the 'Move to Discussion' label.
+ *   (Actual migration to Discussions must be handled manually due to API limitations.)
+ */
+
+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');
+    if (!lines.some(l => l.trim())) return '';
+    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 addMoveToDiscussionLabel(github, owner, repo, issue, isDryRun) {
+    const targetLabel = "Move to Discussion";
+
+    const hasLabel = issue.labels.some(
+        l => l.name.toLowerCase() === targetLabel.toLowerCase()
+    );
+
+    if (hasLabel) return false;
+
+    if (isDryRun) {
+        console.log(`[DRY-RUN] Would add '${targetLabel}' to issue #${issue.number}`);
+        return true;
+    }
+
+    try {
+        await github.rest.issues.addLabels({
+            owner,
+            repo,
+            issue_number: issue.number,
+            labels: [targetLabel],
+        });
+        console.log(`Adding label to #${issue.number} (Move to discussion)`);
+        return true;
+
+    } catch (err) {
+        console.error(`Failed to add label to #${issue.number}`, err);
+        return false;
+    }
+}
+
+
+async function fetchAllOpenIssues(github, owner, repo) {
+    const issues = [];
+    let page = 1;
+
+    while (true) {
+        try {
+            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++;
+        } catch (err) {
+            console.error('Error fetching issues:', err);
+            break;
+        }
+    }
+    return issues;
+}
+
+
+async function hasRecentFriendlyReminder(github, owner, repo, issueNumber, maxAgeMs) {
+    let page = 1;
+
+    while (true) {
+        const { data } = await github.rest.issues.listComments({
+            owner,
+            repo,
+            issue_number: issueNumber,
+            per_page: 100,
+            page,
+        });
+        if (!data || data.length === 0) break;
+
+        for (const c of data) {
+            if (c.user?.login === 'github-actions[bot]' && 
+                c.body.includes('<!-- backlog-bot:friendly-reminder -->')) 
+            {
+                const created = new Date(c.created_at).getTime();
+                if (Date.now() - created < maxAgeMs) {
+                    return true;
+                }
+            }
+        }
+
+        if (data.length < 100) break;
+        page++;
+    }
+    return false;
+}
+
+
+module.exports = async ({ github, context, dryRun }) => {
+    const now = new Date();
+    const thresholdDays = 90;
+    const exemptLabels = [
+        'Status: Community help needed',
+        'Status: Needs investigation',
+        'Move to Discussion',
+        'Status: Blocked upstream 🛑', 
+        'Status: Blocked by ESP-IDF 🛑'
+    ];
+    const closeLabels = ['Status: Awaiting Response'];
+    const questionLabel = 'Type: Question';
+    const { owner, repo } = context.repo;
+    const sevenDaysMs = 7 * 24 * 60 * 60 * 1000;
+
+    const isDryRun = dryRun === "1";
+    if (isDryRun) {
+        console.log("DRY-RUN mode enabled — no changes will be made.");
+    }
+
+    let totalClosed = 0;
+    let totalReminders = 0;
+    let totalSkipped = 0;
+    let totalMarkedToMigrate = 0;
+
+    let issues = [];
+
+    try {
+        issues = await fetchAllOpenIssues(github, owner, repo);
+    } catch (err) {
+        console.error('Failed to fetch issues:', err);
+        return;
+    }
+
+    for (const issue of issues) {
+        const isAssigned = issue.assignees && issue.assignees.length > 0;
+        const lastUpdate = new Date(issue.updated_at);
+        const oneDayMs = 1000 * 60 * 60 * 24;
+        const daysSinceUpdate = Math.floor((now - lastUpdate) / oneDayMs);
+
+        if (issue.labels.some(label => exemptLabels.includes(label.name))) {
+            console.log(`Skipping #${issue.number} (exempt label)`);
+            totalSkipped++;
+            continue;
+        }
+
+        if (issue.labels.some(label => label.name === questionLabel)) {
+            const marked = await addMoveToDiscussionLabel(github, owner, repo, issue, isDryRun);
+            if (marked) totalMarkedToMigrate++;
+            continue; // Do not apply reminder logic
+        }
+
+        if (daysSinceUpdate < thresholdDays) {
+            console.log(`Skipping #${issue.number} (recent activity)`);
+            totalSkipped++;
+            continue;
+        }
+
+        if (issue.labels.some(label => closeLabels.includes(label.name)) || !isAssigned) {
+
+            if (isDryRun) {
+                console.log(`[DRY-RUN] Would close issue #${issue.number}`);
+                totalClosed++;
+                continue;
+            }
+
+            try {
+                await github.rest.issues.createComment({
+                    owner,
+                    repo,
+                    issue_number: issue.number,
+                    body: '⚠️ This issue was closed automatically due to inactivity. Please reopen or open a new one if still relevant.',
+                });
+                await github.rest.issues.update({
+                    owner,
+                    repo,
+                    issue_number: issue.number,
+                    state: 'closed',
+                });
+                console.log(`Closing #${issue.number} (inactivity)`);
+                totalClosed++;
+            } catch (err) {
+                console.error(`Error closing issue #${issue.number}:`, err);
+            }
+            continue;
+        }
+
+        if (isAssigned) {
+
+            if (await hasRecentFriendlyReminder(github, owner, repo, issue.number, sevenDaysMs)) {
+                console.log(`Skipping #${issue.number} (recent reminder)`);
+                totalSkipped++;
+                continue;
+            }
+
+            const assignees = issue.assignees.map(u => `@${u.login}`).join(', ');
+            const comment = dedent`
+                <!-- backlog-bot:friendly-reminder -->
+                ⏰ Friendly Reminder
+
+                Hi ${assignees}!
+
+                This issue has had no activity for ${daysSinceUpdate} days. If it's still relevant:
+                - Please provide a status update
+                - Add any blocking details and labels
+                - Or label it 'Status: Awaiting Response' if you're waiting on the user's response
+
+                This is just a reminder; the issue remains open for now.`;
+
+            if (isDryRun) {
+                console.log(`[DRY-RUN] Would post reminder on #${issue.number}`);
+                totalReminders++;
+                continue;
+            }
+
+            try {
+                await github.rest.issues.createComment({
+                    owner,
+                    repo,
+                    issue_number: issue.number,
+                    body: comment,
+                });
+                console.log(`Sending reminder to #${issue.number}`);
+                totalReminders++;
+            } catch (err) {
+                console.error(`Error sending reminder for issue #${issue.number}:`, err);
+            }
+        }
+    }
+
+    console.log(dedent`
+        === Backlog cleanup summary ===
+        Total issues processed: ${issues.length}
+        Total issues closed: ${totalClosed}
+        Total reminders sent: ${totalReminders}
+        Total marked to migrate to discussions: ${totalMarkedToMigrate}
+        Total skipped: ${totalSkipped}`);
+};

.github/workflows/backlog-bot.yml

@@ -0,0 +1,33 @@
+name: "Backlog Management Bot"
+
+on:
+  schedule:
+    - cron: '0 4 * * *' # Run daily at 4 AM UTC
+  workflow_dispatch:
+    inputs:
+      dry-run:
+        description: "Run without modifying issues"
+        required: false
+        default: "0"
+
+permissions: 
+  issues: write
+  discussions: write
+  contents: read
+
+jobs:
+  backlog-bot:
+    name: "Check issues"
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
+
+      - name: Run backlog cleanup script
+        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          script: |
+            const script = require('./.github/scripts/backlog-cleanup.js');
+            const dryRun = "${{ github.event.inputs.dry-run }}";
+            await script({ github, context, dryRun });