Type manipulation (#28446)

* add type manipulation

* update for py3

* add tests for list to dict

* Add dict to list tests

* Update tests to search for regex in response

* pep8 clean up

* update Exception for py3

* update test to be py2/3 compat

* update for py26 compat

* potential fix for py3 and py26

* potential fix for py3 and py26 take2

* add new line to kick off shippable

* remove cache file created

* fix filter name

* add space for shipable

lib/ansible/plugins/filter/cast_type.py

@@ -0,0 +1,63 @@
+# Author Ken Celenza <ken@networktocode.com>
+# Author Jason Edelman <jason@networktocode.com>
+
+# Make coding more python3-ish
+from __future__ import (absolute_import, division, print_function)
+__metaclass__ = type
+
+from ansible.errors import AnsibleError, AnsibleFilterError
+
+
+def cast_list_to_dict(data, key):
+    new_obj = {}
+
+    if not isinstance(data, list):
+        raise AnsibleFilterError("Type is not a valid list")
+    for item in data:
+        if not isinstance(item, dict):
+            raise AnsibleFilterError("List item is not a valid dict")
+        try:
+            key_elem = item.get(key)
+        except Exception as e:
+            raise AnsibleFilterError(str(e))
+        if new_obj.get(key_elem):
+            raise AnsibleFilterError("Key {0} is not unique, cannot correctly turn into dict".format(key_elem))
+        elif not key_elem:
+            raise AnsibleFilterError("Key {0} was not found".format(key))
+        else:
+            new_obj[key_elem] = item
+    return new_obj
+
+
+def cast_dict_to_list(data, key_name):
+    new_obj = []
+
+    if not isinstance(data, dict):
+        raise AnsibleFilterError("Type is not a valid dict")
+    for key, value in data.items():
+        if not isinstance(value, dict):
+            raise AnsibleFilterError("Type of key {0} value {1} is not a valid dict".format(key, value))
+        if value.get(key_name):
+            raise AnsibleFilterError("Key name {0} is already in use, cannot correctly turn into dict".format(key_name))
+        value[key_name] = key
+        new_obj.append(value)
+    return new_obj
+
+
+class FilterModule(object):
+    '''Convert a list to a dictionary provided a key that exists in all dicts.
+        If it does not, that dict is omitted
+    '''
+    def filters(self):
+        return {
+            'cast_list_to_dict': cast_list_to_dict,
+            'cast_dict_to_list': cast_dict_to_list,
+        }
+
+
+if __name__ == "__main__":
+    list_data = [{"proto": "eigrp", "state": "enabled"}, {"proto": "ospf", "state": "enabled"}]
+    print(cast_list_to_dict(list_data, 'proto'))
+
+    dict_data = {'eigrp': {'state': 'enabled', 'as': '1'}, 'ospf': {'state': 'enabled', 'as': '2'}}
+    print(cast_dict_to_list(dict_data, 'proto'))