Move version check for resource_limits to implementations

plugins/module_utils/implementations/mariadb/user.py

@@ -17,3 +17,9 @@ def use_old_user_mgmt(cursor):
 
 def supports_identified_by_password(cursor):
     return True
+
+
+def server_supports_alter_user(cursor):
+    version = get_server_version(cursor)
+
+    return LooseVersion(version) >= LooseVersion("10.2")

plugins/module_utils/implementations/mysql/user.py

@@ -18,3 +18,9 @@ def use_old_user_mgmt(cursor):
 def supports_identified_by_password(cursor):
     version = get_server_version(cursor)
     return LooseVersion(version) < LooseVersion("8")
+
+
+def server_supports_alter_user(cursor):
+    version = get_server_version(cursor)
+
+    return LooseVersion(version) >= LooseVersion("5.6")

plugins/module_utils/user.py

@@ -753,33 +753,6 @@ def convert_priv_dict_to_str(priv):
     return '/'.join(priv_list)
 
 
-# Alter user is supported since MySQL 5.6 and MariaDB 10.2.0
-def server_supports_alter_user(cursor):
-    """Check if the server supports ALTER USER statement or doesn't.
-
-    Args:
-        cursor (cursor): DB driver cursor object.
-
-    Returns: True if supports, False otherwise.
-    """
-    cursor.execute("SELECT VERSION()")
-    version_str = cursor.fetchone()[0]
-    version = version_str.split('.')
-
-    if 'mariadb' in version_str.lower():
-        # MariaDB 10.2 and later
-        if int(version[0]) * 1000 + int(version[1]) >= 10002:
-            return True
-        else:
-            return False
-    else:
-        # MySQL 5.6 and later
-        if int(version[0]) * 1000 + int(version[1]) >= 5006:
-            return True
-        else:
-            return False
-
-
 def get_resource_limits(cursor, user, host):
     """Get user resource limits.
 
@@ -869,7 +842,7 @@ def limit_resources(module, cursor, user, host, resource_limits, check_mode):
 
     Returns: True, if changed, False otherwise.
     """
-    if not server_supports_alter_user(cursor):
+    if not impl.server_supports_alter_user(cursor):
         module.fail_json(msg="The server version does not match the requirements "
                              "for resource_limits parameter. See module's documentation.")