fix: scrub volatile queues from backups

src/infra/backup-create.test.ts

@@ -18,6 +18,7 @@ import {
   type BackupCreateResult,
 } from "./backup-create.js";
 import { executeSqliteQuerySync, getNodeSqliteKysely } from "./kysely-sync.js";
+import { requireNodeSqlite } from "./node-sqlite.js";
 
 function makeResult(overrides: Partial<BackupCreateResult> = {}): BackupCreateResult {
   return {
@@ -37,7 +38,7 @@ function makeResult(overrides: Partial<BackupCreateResult> = {}): BackupCreateRe
 
 type BackupCreateTestDatabase = Pick<
   OpenClawStateKyselyDatabase,
-  "diagnostic_events" | "backup_runs"
+  "diagnostic_events" | "backup_runs" | "delivery_queue_entries"
 >;
 
 async function listArchiveEntries(archivePath: string): Promise<string[]> {
@@ -53,6 +54,30 @@ async function listArchiveEntries(archivePath: string): Promise<string[]> {
   return entries;
 }
 
+async function extractArchiveToTemp(archivePath: string): Promise<string> {
+  const tempDir = await fs.mkdtemp(path.join(os.tmpdir(), "openclaw-backup-test-extract-"));
+  await tar.x({
+    file: archivePath,
+    gzip: true,
+    cwd: tempDir,
+  });
+  return tempDir;
+}
+
+function countDeliveryQueueRows(sqlitePath: string): number {
+  const sqlite = requireNodeSqlite();
+  const db = new sqlite.DatabaseSync(sqlitePath, { readOnly: true });
+  try {
+    const row = db.prepare("SELECT COUNT(*) AS count FROM delivery_queue_entries").get() as
+      | { count?: number | bigint }
+      | undefined;
+    const count = row?.count ?? 0;
+    return typeof count === "bigint" ? Number(count) : count;
+  } finally {
+    db.close();
+  }
+}
+
 afterEach(() => {
   closeOpenClawStateDatabaseForTest();
 });
@@ -289,6 +314,58 @@ describe("createBackupArchive", () => {
     );
   });
 
+  it("scrubs volatile delivery queue rows from SQLite snapshots", async () => {
+    await withOpenClawTestState(
+      {
+        layout: "state-only",
+        prefix: "openclaw-backup-queue-scrub-",
+        scenario: "minimal",
+      },
+      async (state) => {
+        const outputDir = state.path("backups");
+        await fs.mkdir(outputDir, { recursive: true });
+        const database = openOpenClawStateDatabase();
+        const db = getNodeSqliteKysely<BackupCreateTestDatabase>(database.db);
+        executeSqliteQuerySync(
+          database.db,
+          db.insertInto("delivery_queue_entries").values({
+            queue_name: "outbound",
+            id: "queued-send",
+            status: "pending",
+            entry_kind: "message",
+            session_key: "session-1",
+            channel: "telegram",
+            target: "chat-1",
+            account_id: null,
+            entry_json: JSON.stringify({ text: "do not replay" }),
+            enqueued_at: 1,
+            updated_at: 1,
+          }),
+        );
+
+        const result = await createBackupArchive({
+          output: outputDir,
+          includeWorkspace: false,
+          nowMs: Date.UTC(2026, 4, 11, 12, 0, 0),
+        });
+        const stateAsset = result.assets.find((asset) => asset.kind === "state");
+        expect(stateAsset).toBeDefined();
+        const extractDir = await extractArchiveToTemp(result.archivePath);
+        try {
+          const archivedStateDb = path.join(
+            extractDir,
+            stateAsset!.archivePath,
+            "state",
+            "openclaw.sqlite",
+          );
+          expect(countDeliveryQueueRows(archivedStateDb)).toBe(0);
+        } finally {
+          await fs.rm(extractDir, { recursive: true, force: true });
+        }
+      },
+    );
+  });
+
   it("does not duplicate the root manifest when the system tempdir lives inside the state dir", async () => {
     await withOpenClawTestState(
       {

src/infra/backup-create.ts

@@ -169,6 +169,7 @@ function buildTempArchivePath(outputPath: string): string {
 
 const BACKUP_TAR_MAX_ATTEMPTS = 3;
 const BACKUP_TAR_BACKOFF_MS = [250, 1000] as const;
+const VOLATILE_SQLITE_TABLES = ["delivery_queue_entries"] as const;
 
 function isTarEofRaceError(err: unknown): boolean {
   const code = (err as NodeJS.ErrnoException | undefined)?.code;
@@ -466,6 +467,27 @@ function sqlStringLiteral(value: string): string {
   return `'${value.replaceAll("'", "''")}'`;
 }
 
+function sqliteTableExists(db: import("node:sqlite").DatabaseSync, tableName: string): boolean {
+  const row = db
+    .prepare("SELECT 1 FROM sqlite_master WHERE type = 'table' AND name = ? LIMIT 1")
+    .get(tableName);
+  return row !== undefined;
+}
+
+function scrubVolatileSqliteSnapshotRows(db: import("node:sqlite").DatabaseSync): void {
+  let scrubbed = false;
+  for (const tableName of VOLATILE_SQLITE_TABLES) {
+    if (!sqliteTableExists(db, tableName)) {
+      continue;
+    }
+    db.exec(`DELETE FROM ${tableName};`);
+    scrubbed = true;
+  }
+  if (scrubbed) {
+    db.exec("VACUUM;");
+  }
+}
+
 async function listSqliteDatabasePaths(root: string): Promise<string[]> {
   const results: string[] = [];
   async function walk(dir: string): Promise<void> {
@@ -531,6 +553,16 @@ async function snapshotSqliteDatabase(params: {
   } finally {
     integrityDb.close();
   }
+  const snapshotDb = new sqlite.DatabaseSync(params.snapshotPath);
+  try {
+    scrubVolatileSqliteSnapshotRows(snapshotDb);
+    assertSqliteIntegrityOk(
+      snapshotDb,
+      `SQLite integrity check failed after volatile backup scrub: ${params.sourcePath}`,
+    );
+  } finally {
+    snapshotDb.close();
+  }
   const stat = await fs.stat(params.snapshotPath);
   return { byteSize: stat.size };
 }