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This code originated in module_utils/basic.py which was BSD licensed. In moving it and making it aplicable to other pieces of code that were using similar functions, I added onto it a little.
26 lines
996 B
Python
26 lines
996 B
Python
# Copyright: 2017, Ansible Project
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# Simplified BSD License (see licenses/simplified_bsd.txt or https://opensource.org/licenses/BSD-2-Clause )
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from ansible.module_utils.six import binary_type, text_type
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from ansible.module_utils._text import to_text
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BOOLEANS_TRUE = frozenset(('y', 'yes', 'on', '1', 'true', 't', 1, 1.0, True))
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BOOLEANS_FALSE = frozenset(('n', 'no', 'off', '0', 'false', 'f', 0, 0.0, False))
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BOOLEANS = BOOLEANS_TRUE.union(BOOLEANS_FALSE)
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def boolean(value, strict=True):
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if isinstance(value, bool):
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return value
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normalized_value = value
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if isinstance(value, (text_type, binary_type)):
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normalized_value = to_text(value, errors='surrogate_or_strict').lower().strip()
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if normalized_value in BOOLEANS_TRUE:
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return True
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elif normalized_value in BOOLEANS_FALSE or not strict:
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return False
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raise TypeError('%s is not a valid boolean. Valid booleans include: %s' % (to_text(value), ', '.join(repr(i) for i in BOOLEANS)))
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