airflow/utils/strings.py

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"""Common utility functions with strings."""
from __future__ import annotations

import string
from random import choice


def get_random_string(length=8, choices=string.ascii_letters + string.digits):
    """Generate random string."""
    return "".join(choice(choices) for _ in range(length))


TRUE_LIKE_VALUES = {"on", "t", "true", "y", "yes", "1"}


def to_boolean(astring: str | None) -> bool:
    """Convert a string to a boolean."""
    if astring is None:
        return False
    if astring.lower() in TRUE_LIKE_VALUES:
        return True
    return False