openserverless/time_util.py

# Licensed to the Apache Software Foundation (ASF) under one
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# to you under the Apache License, Version 2.0 (the
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#
#   http://www.apache.org/licenses/LICENSE-2.0
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import logging, re

def duration_in_second(string):
    """
    Conveniently parse a string represting a finite time unit in multiple format (s, m, h, d, sec, min, hour, day) and convert it into seconds.    
    >>> import openserverless.time_util as tu
    >>> tu.duration_in_second("1s")        
    1
    >>> tu.duration_in_second("1m")        
    60
    >>> tu.duration_in_second("1h")        
    3600
    >>> tu.duration_in_second("1d")    
    86400
    >>> tu.duration_in_second("1 s")
    1
    >>> tu.duration_in_second("1 d")
    86400
    >>> tu.duration_in_second("1 sec")
    1
    >>> tu.duration_in_second("1 min")
    60
    >>> tu.duration_in_second("1 hour")
    3600
    >>> tu.duration_in_second("1 day")
    86400
    >>> tu.duration_in_second("5  min")
    300
    >>> tu.duration_in_second("5min")
    300
    >>> tu.duration_in_second("10  min")
    600
    """
    mult = {"s": 1, "m": 60, "h": 60*60, "d": 60*60*24,"sec": 1, "min": 60, "hour": 60*60, "day": 60*60*24}
    parts = re.findall(r"(\d+(?:\s+)?)([\w])", string)
    total_seconds = sum(int(x) * mult[m] for x, m in parts)
    return total_seconds