84 lines
2.4 KiB
Python
84 lines
2.4 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import datetime
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import logging
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import iso8601
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import six
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def get_logger(name):
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name = name.replace(__name__.split('.')[0], 'keystoneauth')
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return logging.getLogger(name)
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logger = get_logger(__name__)
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def normalize_time(timestamp):
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"""Normalize time in arbitrary timezone to UTC naive object."""
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offset = timestamp.utcoffset()
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if offset is None:
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return timestamp
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return timestamp.replace(tzinfo=None) - offset
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def parse_isotime(timestr):
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"""Parse time from ISO 8601 format."""
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try:
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return iso8601.parse_date(timestr)
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except iso8601.ParseError as e:
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raise ValueError(six.text_type(e))
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except TypeError as e:
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raise ValueError(six.text_type(e))
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def from_utcnow(**timedelta_kwargs):
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r"""Calculate the time in the future from utcnow.
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:param \*\*timedelta_kwargs:
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Passed directly to :class:`datetime.timedelta` to add to the current
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time in UTC.
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:returns:
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The time in the future based on ``timedelta_kwargs``.
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:rtype:
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datetime.datetime
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"""
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now = datetime.datetime.utcnow()
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delta = datetime.timedelta(**timedelta_kwargs)
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return now + delta
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def before_utcnow(**timedelta_kwargs):
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r"""Calculate the time in the past from utcnow.
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:param \*\*timedelta_kwargs:
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Passed directly to :class:`datetime.timedelta` to subtract from the
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current time in UTC.
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:returns:
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The time in the past based on ``timedelta_kwargs``.
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:rtype:
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datetime.datetime
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"""
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now = datetime.datetime.utcnow()
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delta = datetime.timedelta(**timedelta_kwargs)
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return now - delta
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# Detect if running on the Windows Subsystem for Linux
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try:
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with open('/proc/version', 'r') as f:
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is_windows_linux_subsystem = 'microsoft' in f.read().lower()
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except IOError:
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is_windows_linux_subsystem = False
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