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72 lines
1.9 KiB
Python
72 lines
1.9 KiB
Python
# This file is part of the pycalver project
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# https://github.com/mbarkhau/pycalver
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#
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# Copyright (c) 2018 Manuel Barkhau (@mbarkhau) - MIT License
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# SPDX-License-Identifier: MIT
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"""Functions related to version string manipulation."""
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import logging
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import pkg_resources
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import typing as typ
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import datetime as dt
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from . import lex_id
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from . import parse
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log = logging.getLogger("pycalver.version")
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def current_calver() -> str:
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"""Generate calver version string based on current date.
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example result: "v201812"
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"""
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return dt.date.today().strftime("v%Y%m")
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def incr(old_version: str, *, release: str = None) -> str:
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"""Increment a full PyCalVer version string.
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Old_version is assumed to be a valid calver string,
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already validated in pycalver.config.parse.
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"""
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old_ver = parse.parse_version_info(old_version)
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new_calver = current_calver()
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if old_ver.calver > new_calver:
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log.warning(
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f"'version.incr' called with '{old_version}', "
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+ f"which is from the future, "
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+ f"maybe your system clock is out of sync."
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)
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# leave calver as is (don't go back in time)
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new_calver = old_ver.calver
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new_build = lex_id.next_id(old_ver.build[1:])
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new_release: typ.Optional[str] = None
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if release is None:
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if old_ver.release:
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# preserve existing release
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new_release = old_ver.release[1:]
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else:
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new_release = None
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elif release == 'final':
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new_release = None
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else:
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new_release = release
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new_version = new_calver + "." + new_build
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if new_release:
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new_version += "-" + new_release
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return new_version
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def pycalver_to_pep440(version: str) -> str:
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"""Derive pep440 compliant version string from PyCalVer version string.
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>>> pycalver_to_pep440("v201811.0007-beta")
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'201811.7b0'
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"""
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return str(pkg_resources.parse_version(version))
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