Add support for calendar versioning

Example from slack:
import uuid
from datetime import datetime, timezone
from typing import List

from packaging.version import parse, Version

class CalVerUUID:
    """
    A class to generate, parse and sort version strings based on Calendar Versioning (CalVer)
    with an appended UUID for ensuring uniqueness.
    """

    sorting_key = parse

    @staticmethod
    def generate_version() -> str:
        """
        Generates a new version string with the current UTC timestamp down to the second and a unique UUID.

        The returned string has the format: 'YYYY.MM.DD.HH.MM.SS+UUID'

        Returns:
        --------
        str
            A version string.

        Example:
        --------
        >>> print(CalVerUUID.generate_version())
        '2023.06.25.15.30.45+1a2b3c4d'
        """
        now = datetime.now(tz=timezone.utc)
        timestamp_str = now.strftime("%Y.%m.%d.%H.%M.%S")
        # Generate a short unique identifier
        uuid_str = str(uuid.uuid4())[:8]
        return f"{timestamp_str}+{uuid_str}"

    @staticmethod
    def parse_version(version_str: str) -> Version:
        return parse(version_str)

    @staticmethod
    def sort_versions(version_list: List[str]) -> List[str]:
        """
        Sorts a list of version strings based on their timestamp and returns the sorted list.
        """
        return sorted(version_list, key=CalVerUUID.sorting_key, reverse=True)
operatorai / modelstore

Add support for calendar versioning #244
