commit e83872584eee1fddb36babab25089a98f10b0d85 Author: juga0 <juga@riseup.net> Date: Sun Jun 16 12:54:42 2019 +0000 new: util: Add function to know if timestamp is old Part of #30727. --- sbws/util/timestamp.py | 23 ++++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) diff --git a/sbws/util/timestamp.py b/sbws/util/timestamp.py index ff3efd8..4c3fb34 100644 --- a/sbws/util/timestamp.py +++ b/sbws/util/timestamp.py @@ -1,5 +1,7 @@ """Util functions to convert between timestamp formats""" -from datetime import datetime +from datetime import datetime, timedelta + +from ..globals import MEASUREMENTS_PERIOD def dt_obj_to_isodt_str(dt): @@ -71,3 +73,22 @@ def unixts_to_str(unixts): # than int or float assert isinstance(unixts, int) or isinstance(unixts, float) return str(unixts) + + +# XXX: tech-debt: replace all the code that check whether a +# measurement or relay is older than the measurement period by this. +def is_old(timestamp, measurements_period=MEASUREMENTS_PERIOD): + """Whether the given timestamp is older that the given measurements + period. + """ + if not isinstance(timestamp, datetime): + if isinstance(timestamp, str): + # This will raise an exception if the string is not correctly + # formatted. + timestamp = isostr_to_dt_obj(timestamp) + else: + # This will raise an exception if the type is not int or float or + # is not actually a timestamp + timestamp = unixts_to_dt_obj(timestamp) + oldest_date = datetime.utcnow() - timedelta(measurements_period) + return timestamp > oldest_date