peterlu14
71 lines
1.5 KiB
Python
71 lines
1.5 KiB
Python
from datetime import datetime
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from .sys import system_sudo, CalledProcessError
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__all__ = ['str_datetime', 'datetime_str', 'set_datetime']
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def str_datetime(expr: str) -> datetime:
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"""
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:param expr: format datetime(yyyy,mm,dd,HH,MM,SS)
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:return:
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"""
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if not (expr.startswith('datetime(') and expr.endswith(')')):
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raise ValueError('illegal datetime format : ' + expr)
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c = datetime.now()
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p = expr[9:-1].split(',')
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y = c.year
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m = c.month
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d = c.day
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H = c.hour
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M = c.minute
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S = c.second
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if len(p) > 0 and len(p[0]) > 0:
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y = int(p[0])
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if y < 2000:
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y += 2000
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if len(p) > 1 and len(p[1]) > 0:
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m = int(p[1])
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if len(p) > 2 and len(p[2]) > 0:
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d = int(p[2])
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if len(p) > 3 and len(p[3]) > 0:
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H = int(p[3])
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if len(p) > 4 and len(p[4]) > 0:
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M = int(p[4])
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if len(p) > 5 and len(p[5]) > 0:
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S = int(p[5])
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if len(p) > 6:
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raise ValueError('illegal datetime format : ' + expr)
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# check valid datetime
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return datetime(y, m, d, H, M, S)
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def datetime_str(d: datetime = None) -> str:
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if d is None:
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d = datetime.now()
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return 'datetime(%d,%d,%d,%d,%d,%d)' % (d.year, d.month, d.day, d.hour, d.minute, d.second)
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def set_datetime(d: datetime):
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"""set system datetime.
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:param d:
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:return:
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"""
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try:
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system_sudo('date', '-s', '%d/%d/%d %d:%d:%d' % (d.year, d.month, d.day, d.hour, d.minute, d.second))
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except CalledProcessError:
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pass
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