FIX get_options function for CallbackBase (ansible#84496)

changelogs/fragments/84496-CallbackBase-get_options.yml

@@ -0,0 +1,4 @@
+---
+minor_changes:
+  - callback plugins - add has_option() to CallbackBase to match other functions overloaded from AnsiblePlugin
+  - callback plugins - fix get_options() for CallbackBase

lib/ansible/plugins/__init__.py

@@ -129,7 +129,7 @@ def plugin_type(self):
 
     @property
     def option_definitions(self):
-        if self._defs is None:
+        if (not hasattr(self, "_defs")) or self._defs is None:
             self._defs = C.config.get_configuration_definitions(plugin_type=self.plugin_type, name=self._load_name)
         return self._defs
 

lib/ansible/plugins/callback/__init__.py

@@ -171,9 +171,12 @@ def __init__(self, display=None, options=None):
     def set_option(self, k, v):
         self._plugin_options[k] = C.config.get_config_value(k, plugin_type=self.plugin_type, plugin_name=self._load_name, direct={k: v})
 
-    def get_option(self, k):
+    def get_option(self, k, hostvars=None):
         return self._plugin_options[k]
 
+    def has_option(self, option):
+        return (option in self._plugin_options)
+
     def set_options(self, task_keys=None, var_options=None, direct=None):
         """ This is different than the normal plugin method as callbacks get called early and really don't accept keywords.
             Also _options was already taken for CLI args and callbacks use _plugin_options instead.