def get_file_watcher(directories, use_mtime_file_watcher):
"""Returns an instance that monitors a hierarchy of directories.
Args:
directories: A list representing the paths of the directories to monitor.
use_mtime_file_watcher: A bool containing whether to use mtime polling to
monitor file changes even if other options are available on the current
platform.
Returns:
A FileWatcher appropriate for the current platform. start() must be called
before has_changes().
"""
assert not isinstance(directories,
types.StringTypes), 'expected list got str'
if len(directories) != 1:
return _MultipleFileWatcher(directories, use_mtime_file_watcher)
directory = directories[0]
if use_mtime_file_watcher:
return mtime_file_watcher.MtimeFileWatcher(directory)
elif sys.platform.startswith('linux'):
return inotify_file_watcher.InotifyFileWatcher(directory)
elif sys.platform.startswith('win'):
return win32_file_watcher.Win32FileWatcher(directory)
return mtime_file_watcher.MtimeFileWatcher(directory)
def setUp(self):
self._directory = tempfile.mkdtemp() # The watched directory
self._junk_directory = tempfile.mkdtemp() # A scrap directory.
self._watcher = mtime_file_watcher.MtimeFileWatcher(self._directory)
self._watcher._watcher_thread = FakeThread()
logging.debug('watched directory=%r, junk directory=%r',
self._directory, self._junk_directory)
def setUp(self):
self._directory = tempfile.mkdtemp() # The watched directory
self._junk_directory = tempfile.mkdtemp() # A scrap directory.
self._watcher = mtime_file_watcher.MtimeFileWatcher(self._directory)
