upgrade: abuse recall on dedicated boards, junk-title and traffic-noise filters, single-instance bot lock

omni/bot.py

@@ -589,5 +589,34 @@ def run_forever():
         time.sleep(0.3)
 
 
+
+def _single_instance():
+    """Один процесс на токен: второй инстанс выходит, иначе TelegramConflictError и бот молчит."""
+    import os, sys, time, tempfile
+    path = os.path.join(tempfile.gettempdir(), "omni_bot.lock")
+    try:
+        if os.path.exists(path):
+            age = time.time() - os.path.getmtime(path)
+            try:
+                pid = int((open(path, encoding="utf-8").read() or "0").strip() or 0)
+            except ValueError:
+                pid = 0
+            if pid and age < 6 * 3600:
+                alive = False
+                try:
+                    import psutil
+                    alive = psutil.pid_exists(pid) and "omni" in " ".join(psutil.Process(pid).cmdline() or [])
+                except Exception:
+                    alive = False
+                if alive:
+                    print("уже запущен pid %s - выхожу" % pid, flush=True)
+                    sys.exit(0)
+        open(path, "w", encoding="utf-8").write(str(os.getpid()))
+        os.utime(path, None)
+    except Exception as e:
+        print("lock skip", e, flush=True)
+
+
 if __name__ == "__main__":
+    _single_instance()
     run_forever()