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30 lines
844 B
Python
30 lines
844 B
Python
5 years ago
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from __future__ import absolute_import, unicode_literals
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import os
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from virtualenv.util.six import ensure_str, ensure_text
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from .convert import convert
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def get_env_var(key, as_type):
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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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:return:
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"""
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environ_key = ensure_str("VIRTUALENV_{}".format(key.upper()))
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if os.environ.get(environ_key):
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value = os.environ[environ_key]
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# noinspection PyBroadException
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try:
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source = "env var {}".format(ensure_text(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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except Exception: # note the converter already logs a warning when failures happen
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pass
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__all__ = ("get_env_var",)
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