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52 lines
1.7 KiB
Python
52 lines
1.7 KiB
Python
5 years ago
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from datetime import datetime
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from tzlocal import get_localzone
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from apscheduler.triggers.base import BaseTrigger
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from apscheduler.util import convert_to_datetime, datetime_repr, astimezone
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class DateTrigger(BaseTrigger):
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"""
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Triggers once on the given datetime. If ``run_date`` is left empty, current time is used.
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:param datetime|str run_date: the date/time to run the job at
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:param datetime.tzinfo|str timezone: time zone for ``run_date`` if it doesn't have one already
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"""
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__slots__ = 'run_date'
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def __init__(self, run_date=None, timezone=None):
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timezone = astimezone(timezone) or get_localzone()
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if run_date is not None:
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self.run_date = convert_to_datetime(run_date, timezone, 'run_date')
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else:
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self.run_date = datetime.now(timezone)
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def get_next_fire_time(self, previous_fire_time, now):
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return self.run_date if previous_fire_time is None else None
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def __getstate__(self):
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return {
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'version': 1,
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'run_date': self.run_date
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}
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def __setstate__(self, state):
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# This is for compatibility with APScheduler 3.0.x
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if isinstance(state, tuple):
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state = state[1]
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if state.get('version', 1) > 1:
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raise ValueError(
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'Got serialized data for version %s of %s, but only version 1 can be handled' %
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(state['version'], self.__class__.__name__))
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self.run_date = state['run_date']
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def __str__(self):
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return 'date[%s]' % datetime_repr(self.run_date)
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def __repr__(self):
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return "<%s (run_date='%s')>" % (self.__class__.__name__, datetime_repr(self.run_date))
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