mirror of
https://github.com/avatao-content/baseimage-tutorial-framework
synced 2024-11-06 01:31:21 +00:00
38 lines
985 B
Python
38 lines
985 B
Python
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from watchdog.observers import Observer
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from watchdog.events import FileSystemEventHandler
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from collections import deque
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from os.path import dirname
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class CallbackEventHandler(FileSystemEventHandler):
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def __init__(self, *callbacks):
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super().__init__()
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self.callbacks = callbacks
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def on_modified(self, event):
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for callback in self.callbacks:
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callback()
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class HistoryMonitor:
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def __init__(self, histfile):
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self.histfile = histfile
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self._history = deque()
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self.observer = Observer()
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self.observer.schedule(CallbackEventHandler(self._fetch_history), dirname(self.histfile))
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@property
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def history(self):
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return self._history
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def _fetch_history(self):
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with open(self.histfile, 'r') as ifile:
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self._history = deque(ifile.readlines())
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def watch(self):
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self.observer.start()
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def stop(self):
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self.observer.stop()
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self.observer.join()
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