mysql_role: new module (#189) (#200)

* mysql_role: new module

* fixes

* fixes

* Add the role class

* Check if role exists

* role.add()

* role.__get_members

* tmp

* tmp

* Change tests

* Fix

* Fix

* add_members()

* get_privs()

* tmp

* __extract_grants() filler version

* Before big work

* tmp

* drop()

* tmp

* tmp

* Big changes

* Fix

* append_members, detach_members, append_privs

* tmp

* admin option

* Add tests

* Add tests

* Fix tests

* Remove debug warning

* Fix tests

* Add documentation

* Fix MariaDB case

* Fix MariaDB

* Fix MariaDB

* Fix MariaDB

* Fix MariaDB

* Fix MariaDB

* Fix

* Fix

* Remove debug warning

* Add try-except block

* tmp

* tmp

* tmp

* Fix

* Add err handling

* Add user check

* Check admin in db

* Fix CI

* Fix CI

* Fix CI

* Fix CI

* Fix

* Add mutually exclusive options

* Small refactoring, documenting

* Documenting, refactoring

* Change docs

* Refactoring

* Refactoring

* Refactoring

* Add unit tests

* Update README.md

(cherry picked from commit ce2b269)

Author: Andersson007

README.md

@@ -48,6 +48,7 @@ Every voice is important and every idea is valuable. If you have something on yo
   - [mysql_info](https://docs.ansible.com/ansible/latest/collections/community/mysql/mysql_info_module.html)
   - [mysql_query](https://docs.ansible.com/ansible/latest/collections/community/mysql/mysql_query_module.html)
   - [mysql_replication](https://docs.ansible.com/ansible/latest/collections/community/mysql/mysql_replication_module.html)
+  - [mysql_role](https://docs.ansible.com/ansible/latest/collections/community/mysql/mysql_role_module.html)
   - [mysql_user](https://docs.ansible.com/ansible/latest/collections/community/mysql/mysql_user_module.html)
   - [mysql_variables](https://docs.ansible.com/ansible/latest/collections/community/mysql/mysql_variables_module.html)
 

plugins/module_utils/implementations/mariadb/role.py

@@ -0,0 +1,15 @@
+from __future__ import (absolute_import, division, print_function)
+__metaclass__ = type
+
+from distutils.version import LooseVersion
+from ansible_collections.community.mysql.plugins.module_utils.mysql import get_server_version
+
+
+def supports_roles(cursor):
+    version = get_server_version(cursor)
+
+    return LooseVersion(version) >= LooseVersion('10.0.5')
+
+
+def is_mariadb():
+    return True

plugins/module_utils/implementations/mysql/role.py

@@ -0,0 +1,15 @@
+from __future__ import (absolute_import, division, print_function)
+__metaclass__ = type
+
+from distutils.version import LooseVersion
+from ansible_collections.community.mysql.plugins.module_utils.mysql import get_server_version
+
+
+def supports_roles(cursor):
+    version = get_server_version(cursor)
+
+    return LooseVersion(version) >= LooseVersion('8')
+
+
+def is_mariadb():
+    return False