Macbook
39 lines
1011 B
Python
39 lines
1011 B
Python
from __future__ import annotations
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from contextlib import suppress
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from typing import TYPE_CHECKING
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from .convert import convert
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if TYPE_CHECKING:
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from collections.abc import Mapping
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from typing import Any
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from .convert import TypeData
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def get_env_var(key: str, as_type: TypeData, env: Mapping[str, str]) -> tuple[Any, str] | None:
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"""Get the environment variable option.
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:param key: the config key requested
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:param as_type: the type we would like to convert it to
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:param env: environment variables to use
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:returns: the converted value and source, or None if not set
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"""
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environ_key = f"VIRTUALENV_{key.upper()}"
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if env.get(environ_key):
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value = env[environ_key]
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with suppress(Exception): # note the converter already logs a warning when failures happen
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source = f"env var {environ_key}"
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as_type = convert(value, as_type, source)
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return as_type, source
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return None
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__all__ = [
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"get_env_var",
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]
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