40 lines
1.2 KiB
Python
40 lines
1.2 KiB
Python
# -*- coding: utf-8 -*-
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"""
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This program has been developed by students from the bachelor Computer Science at Utrecht
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University within the Software Project course.
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© Copyright Utrecht University (Department of Information and Computing Sciences)
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"""
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import os
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from dotenv import load_dotenv
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load_dotenv()
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def get_config(value, env, default, cast=None):
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"""
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Small utility to get a configuration value, returns `value` if it is not None, else it will try to get the
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environment variable cast with `cast`. If the environment variable is not set, it will return `default`.
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:param value: The value to check.
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:type value: Any
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:param env: The environment variable to check.
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:type env: string
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:param default: The default value to return if the environment variable is not set.
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:type default: Any
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:param cast: A function to use to cast the environment variable. Must support string input.
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:type cast: Callable[[Any], Any], optional
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:return: The value, the environment variable value, or the default.
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:rtype: Any
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"""
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if value is not None:
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return value
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env = os.environ.get(env, default)
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if cast is None:
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return env
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return cast(env)
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