Save comments from configuration files

src/libserver/cfg_file.h

@@ -282,6 +282,7 @@ struct rspamd_config {
 	GList *workers;                                 /**< linked list of all workers params					*/
 	GHashTable *wrk_parsers;                        /**< hash for worker config parsers, indexed by worker quarks */
 	ucl_object_t *rcl_obj;                          /**< rcl object											*/
+	ucl_object_t *config_comments;                  /**< comments saved from the config						*/
 	ucl_object_t *doc_strings;                      /**< documentation strings for config options			*/
 	GHashTable * metrics;                           /**< hash of metrics indexed by metric name				*/
 	GList * metrics_list;                           /**< linked list of metrics								*/

src/libserver/cfg_rcl.c

@@ -2908,7 +2908,7 @@ rspamd_config_read (struct rspamd_config *cfg, const gchar *filename,
 	rspamd_strlcpy (cfg->cfg_pool->tag.uid, cfg->checksum,
 			MIN (sizeof (cfg->cfg_pool->tag.uid), strlen (cfg->checksum)));
 
-	parser = ucl_parser_new (0);
+	parser = ucl_parser_new (UCL_PARSER_SAVE_COMMENTS);
 	rspamd_ucl_add_conf_variables (parser, vars);
 	rspamd_ucl_add_conf_macros (parser, cfg);
 
@@ -2921,6 +2921,7 @@ rspamd_config_read (struct rspamd_config *cfg, const gchar *filename,
 
 	munmap (data, st.st_size);
 	cfg->rcl_obj = ucl_parser_get_object (parser);
+	cfg->config_comments = ucl_object_ref (ucl_parser_get_comments (parser));
 	ucl_parser_free (parser);
 
 	top = rspamd_rcl_config_init (cfg);

src/libserver/cfg_utils.c

@@ -171,6 +171,7 @@ rspamd_config_free (struct rspamd_config *cfg)
 
 	rspamd_map_remove_all (cfg);
 	ucl_object_unref (cfg->rcl_obj);
+	ucl_object_unref (cfg->config_comments);
 	ucl_object_unref (cfg->doc_strings);
 	g_hash_table_remove_all (cfg->metrics);
 	g_hash_table_unref (cfg->metrics);