Fix file observer

lib/tfw/components/history_monitor.py

@@ -1,10 +1,6 @@
 # Copyright (C) 2018 Avatao.com Innovative Learning Kft.
 # All Rights Reserved. See LICENSE file for details.
 
-from pwd import getpwnam
-from grp import getgrnam
-from pathlib import Path
-from os import chown
 from re import findall
 from re import compile as compileregex
 from abc import ABC, abstractmethod
@@ -30,11 +26,6 @@ class HistoryMonitor(ABC, InotifyObserver):
         self.history = []
         self._last_length = len(self.history)
         self.uplink = uplink
-        uid = getpwnam('user').pw_uid
-        gid = getgrnam('users').gr_gid
-        path = Path(self.histfile)
-        path.touch()
-        chown(self.histfile, uid, gid)
         super().__init__(self.histfile)
 
     @property

lib/tfw/components/inotify/inotify.py

@@ -2,7 +2,7 @@
 
 from typing import Iterable
 from time import time
-from os.path import abspath, dirname, isfile
+from os.path import abspath, dirname, isdir
 
 from watchdog.observers import Observer
 from watchdog.events import FileSystemMovedEvent, PatternMatchingEventHandler
@@ -66,10 +66,10 @@ class InotifyDirDeletedEvent(InotifyEvent):
 
 
 class InotifyObserver:
-    def __init__(self, path, patterns=[], exclude=None, recursive=False):
+    def __init__(self, path, patterns=None, exclude=None, recursive=False):
         self._files = []
         self._paths = path
-        self._patterns = patterns
+        self._patterns = patterns or []
         self._exclude = exclude
         self._recursive = recursive
         self._observer = Observer()
@@ -97,12 +97,12 @@ class InotifyObserver:
     def _extract_files_from_paths(self):
         files, paths = [], []
         for path in self._paths:
-            if isfile(path):
+            if isdir(path):
+                paths.append(path)
+            else:
                 new_file = abspath(path)
                 files.append(new_file)
                 paths.append(dirname(new_file))
-            else:
-                paths.append(path)
         self._files, self._paths = files, paths
 
     @property