Provide a way to disable mroonga.

Also, allows providing mroonga with a different soname.

slapos/recipe/generic_mysql/__init__.py

@@ -69,9 +69,16 @@ class Recipe(GenericBaseRecipe):
     mysql_script_list = []
 
     # user defined functions
+    mroonga = config.get('mroonga', 'ha_mroonga.so')
+    if mroonga:
+      last_insert_grn_id = "CREATE FUNCTION last_insert_grn_id RETURNS " \
+        "INTEGER SONAME '" + mroonga + "';"
+    else:
+      last_insert_grn_id = ""
     mysql_script_list.append(self.substituteTemplate(
       self.getTemplateFilename('mysql-init-function.sql.in'),
       {
+        'last_insert_grn_id': last_insert_grn_id,
       }
     ))
     # real database

slapos/recipe/generic_mysql/template/mysql-init-function.sql.in

 USE mysql;
 DROP FUNCTION IF EXISTS last_insert_grn_id;
-CREATE FUNCTION last_insert_grn_id RETURNS INTEGER SONAME 'ha_mroonga.so';
+%(last_insert_grn_id)s
 DROP FUNCTION IF EXISTS sphinx_snippets;
 #CREATE FUNCTION sphinx_snippets RETURNS STRING SONAME 'ha_sphinx.so';