1 files changed, 29 insertions, 0 deletions
diff --git a/lib/ansible/module_utils/parsing/convert_bool.py b/lib/ansible/module_utils/parsing/convert_bool.py
new file mode 100644
index 0000000..7eea875
--- /dev/null
+++ b/lib/ansible/module_utils/parsing/convert_bool.py
@@ -0,0 +1,29 @@
+# Copyright: 2017, Ansible Project
+# Simplified BSD License (see licenses/simplified_bsd.txt or https://opensource.org/licenses/BSD-2-Clause )
+
+from __future__ import (absolute_import, division, print_function)
+__metaclass__ = type
+
+from ansible.module_utils.six import binary_type, text_type
+from ansible.module_utils._text import to_text
+
+
+BOOLEANS_TRUE = frozenset(('y', 'yes', 'on', '1', 'true', 't', 1, 1.0, True))
+BOOLEANS_FALSE = frozenset(('n', 'no', 'off', '0', 'false', 'f', 0, 0.0, False))
+BOOLEANS = BOOLEANS_TRUE.union(BOOLEANS_FALSE)
+
+
+def boolean(value, strict=True):
+    if isinstance(value, bool):
+        return value
+
+    normalized_value = value
+    if isinstance(value, (text_type, binary_type)):
+        normalized_value = to_text(value, errors='surrogate_or_strict').lower().strip()
+
+    if normalized_value in BOOLEANS_TRUE:
+        return True
+    elif normalized_value in BOOLEANS_FALSE or not strict:
+        return False
+
+    raise TypeError("The value '%s' is not a valid boolean.  Valid booleans include: %s" % (to_text(value), ', '.join(repr(i) for i in BOOLEANS)))