Fix parse_file function did not handle err (#2928)

* Fix parse file function did not handle err

* Fix parse_file function did not handle err

* Fix error message

* Updated error information

trunk/src/app/srs_app_config.cpp

@@ -984,10 +984,10 @@ srs_error_t SrsConfDirective::parse_conf(SrsConfigBuffer* buffer, SrsDirectiveCo
         }
 
         if (state == SrsDirectiveStateBlockEnd) {
-            return ctx == SrsDirectiveContextBlock ? srs_success : srs_error_wrap(err, "line %d: unexpected \"}\"", buffer->line);
+            return ctx == SrsDirectiveContextBlock ? srs_success : srs_error_new(ERROR_SYSTEM_CONFIG_INVALID, "line %d: unexpected \"}\"", buffer->line);
         }
         if (state == SrsDirectiveStateEOF) {
-            return ctx != SrsDirectiveContextBlock ? srs_success : srs_error_wrap(err, "line %d: unexpected end of file, expecting \"}\"", conf_line);
+            return ctx != SrsDirectiveContextBlock ? srs_success : srs_error_new(ERROR_SYSTEM_CONFIG_INVALID, "line %d: unexpected end of file, expecting \"}\"", conf_line);
         }
         if (args.empty()) {
             return srs_error_new(ERROR_SYSTEM_CONFIG_INVALID, "line %d: empty directive", conf_line);
@@ -2039,16 +2039,20 @@ srs_error_t SrsConfig::parse_options(int argc, char** argv)
         // the parse_file never check the config,
         // we check it when user requires check config file.
         if (err == srs_success && (err = srs_config_transform_vhost(root)) == srs_success) {
-            if (err == srs_success && (err = check_config()) == srs_success) {
-                srs_trace("config file is ok");
+            if ((err = check_config()) == srs_success) {
+                srs_trace("the config file %s syntax is ok", config_file.c_str());
+                srs_trace("config file %s test is successful", config_file.c_str());
                 exit(0);
             }
         }
 
-        srs_error("invalid config, %s", srs_error_desc(err).c_str());
-        int ret = srs_error_code(err);
-        srs_freep(err);
-        exit(ret);
+        srs_trace("invalid config%s in %s", srs_error_summary(err).c_str(), config_file.c_str());
+        srs_trace("config file %s test is failed", config_file.c_str());
+        exit(srs_error_code(err));
+    }
+
+    if (err != srs_success) {
+        return srs_error_wrap(err, "invalid config");
     }
 
     // transform config to compatible with previous style of config.