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# vim:fileencoding=utf-8:noet
from __future__ import (unicode_literals, division, absolute_import, print_function)
import os
from threading import RLock
from powerline.lib.path import realpath
class StatFileWatcher(object):
def __init__(self):
self.watches = {}
self.lock = RLock()
def watch(self, path):
path = realpath(path)
with self.lock:
self.watches[path] = os.path.getmtime(path)
def unwatch(self, path):
path = realpath(path)
with self.lock:
self.watches.pop(path, None)
def is_watching(self, path):
with self.lock:
return realpath(path) in self.watches
def __call__(self, path):
path = realpath(path)
with self.lock:
if path not in self.watches:
self.watches[path] = os.path.getmtime(path)
return True
mtime = os.path.getmtime(path)
if mtime != self.watches[path]:
self.watches[path] = mtime
return True
return False
def close(self):
with self.lock:
self.watches.clear()
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