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swh/loader/mercurial/utils.py
| # Copyright (C) 2020-2021 The Software Heritage developers | # Copyright (C) 2020-2021 The Software Heritage developers | ||||
| # See the AUTHORS file at the top-level directory of this distribution | # See the AUTHORS file at the top-level directory of this distribution | ||||
| # License: GNU General Public License version 3, or any later version | # License: GNU General Public License version 3, or any later version | ||||
| # See top-level LICENSE file for more information | # See top-level LICENSE file for more information | ||||
| from datetime import datetime, timezone | from datetime import datetime, timezone | ||||
| from typing import Optional, Union | from typing import Optional, Union | ||||
| import dateutil | from dateutil.parser import parse | ||||
| def parse_visit_date(visit_date: Optional[Union[datetime, str]]) -> Optional[datetime]: | def parse_visit_date(visit_date: Optional[Union[datetime, str]]) -> Optional[datetime]: | ||||
| """Convert visit date from either None, a string or a datetime to either None or | """Convert visit date from either None, a string or a datetime to either None or | ||||
| datetime. | datetime. | ||||
| """ | """ | ||||
| if visit_date is None: | if visit_date is None: | ||||
| return None | return None | ||||
| if isinstance(visit_date, datetime): | if isinstance(visit_date, datetime): | ||||
| return visit_date | return visit_date | ||||
| if visit_date == "now": | if visit_date == "now": | ||||
| return datetime.now(tz=timezone.utc) | return datetime.now(tz=timezone.utc) | ||||
| if isinstance(visit_date, str): | if isinstance(visit_date, str): | ||||
| return dateutil.parser.parse(visit_date) | return parse(visit_date) | ||||
| raise ValueError(f"invalid visit date {visit_date!r}") | raise ValueError(f"invalid visit date {visit_date!r}") | ||||