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74 lines
2.2 KiB
74 lines
2.2 KiB
#!/usr/bin/env python
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# -*- coding: UTF-8 -*-
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from json import JSONDecodeError
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from pathlib import Path
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from typing import Union
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from dynaconf.vendor.tomllib import TOMLDecodeError
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from dynaconf.vendor.ruamel.yaml import YAMLError
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from .exceptions import BoxError
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from .box import Box
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from .box_list import BoxList
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__all__ = ['box_from_file']
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def _to_json(data):
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try:
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return Box.from_json(data)
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except JSONDecodeError:
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raise BoxError('File is not JSON as expected')
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except BoxError:
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return BoxList.from_json(data)
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def _to_yaml(data):
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try:
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return Box.from_yaml(data)
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except YAMLError:
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raise BoxError('File is not YAML as expected')
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except BoxError:
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return BoxList.from_yaml(data)
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def _to_toml(data):
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try:
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return Box.from_toml(data)
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except TOMLDecodeError:
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raise BoxError('File is not TOML as expected')
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def box_from_file(file: Union[str, Path], file_type: str = None,
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encoding: str = "utf-8", errors: str = "strict") -> Union[Box, BoxList]:
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"""
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Loads the provided file and tries to parse it into a Box or BoxList object as appropriate.
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:param file: Location of file
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:param encoding: File encoding
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:param errors: How to handle encoding errors
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:param file_type: manually specify file type: json, toml or yaml
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:return: Box or BoxList
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"""
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if not isinstance(file, Path):
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file = Path(file)
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if not file.exists():
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raise BoxError(f'file "{file}" does not exist')
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data = file.read_text(encoding=encoding, errors=errors)
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if file_type:
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if file_type.lower() == 'json':
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return _to_json(data)
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if file_type.lower() == 'yaml':
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return _to_yaml(data)
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if file_type.lower() == 'toml':
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return _to_toml(data)
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raise BoxError(f'"{file_type}" is an unknown type, please use either toml, yaml or json')
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if file.suffix in ('.json', '.jsn'):
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return _to_json(data)
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if file.suffix in ('.yaml', '.yml'):
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return _to_yaml(data)
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if file.suffix in ('.tml', '.toml'):
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return _to_toml(data)
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raise BoxError(f'Could not determine file type based off extension, please provide file_type')
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