Source code for stdlibx.config.loaders.file

 1from __future__ import annotations
 2
 3from pathlib import Path
 4from typing import TYPE_CHECKING, Any, Callable, Mapping
 5
 6if TYPE_CHECKING:
 7    from os import PathLike
 8
 9    from stdlibx.config._types import SupportsRead
10
11

[docs]
12class FileLoader:
13    def __init__(
14        self,
15        path: str | PathLike[str],
16        parser: Callable[[SupportsRead[bytes]], Mapping[str, Any]],
17        *,
18        missing_ok: bool = False,
19    ) -> None:
20        self.__path = Path(path)
21        self.__missing_ok = missing_ok
22        self.__parser = parser
23

[docs]
24    def load(self) -> Mapping[str, Any]:
25        if self.__missing_ok is True and self.__path.exists() is False:
26            return {}
27
28        with open(self.__path, "rb") as fp:
29            return self.__parser(fp)