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"""
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MIT License
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Copyright (c) 2025 retoor
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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Author: retoor <retoor@molodetz.nl>
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Description: Utility to load environment variables from a .env file.
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"""
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import os
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from typing import Optional
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def load_env(file_path: str = '.env') -> None:
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"""
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Loads environment variables from a specified file into the current process environment.
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Args:
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file_path (str): Path to the environment file. Defaults to '.env'.
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Returns:
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None
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Raises:
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FileNotFoundError: If the specified file does not exist.
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IOError: If an I/O error occurs during file reading.
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"""
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try:
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with open(file_path, 'r') as env_file:
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for line in env_file:
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line = line.strip()
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# Skip empty lines and comments
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if not line or line.startswith('#'):
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continue
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# Skip lines without '='
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if '=' not in line:
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continue
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# Split into key and value at the first '='
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key, value = line.split('=', 1)
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# Set environment variable
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os.environ[key.strip()] = value.strip()
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except FileNotFoundError:
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raise FileNotFoundError(f"Environment file '{file_path}' not found.")
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except IOError as e:
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raise IOError(f"Error reading environment file '{file_path}': {e}")
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