refactor: changed logging of highest error using logger

Author: FUSAKLA

cmd/thanos/check.go

@@ -55,16 +55,15 @@ func checkRulesFiles(logger log.Logger, files *[]string) error {
 	return nil
 }
 
-type ThanosRuleGroup struct{
-    PartialResponseStrategy string `yaml:"partial_response_strategy"`
-    rulefmt.RuleGroup `yaml:",inline"`
+type ThanosRuleGroup struct {
+	PartialResponseStrategy string `yaml:"partial_response_strategy"`
+	rulefmt.RuleGroup       `yaml:",inline"`
 }
 
 type ThanosRuleGroups struct {
 	Groups []ThanosRuleGroup `yaml:"groups"`
 }
 
-
 func checkRules(logger log.Logger, filename string) (int, tsdb.MultiError) {
 	level.Info(logger).Log("msg", "checking", "filename", filename)
 	checkErrors := tsdb.MultiError{}

cmd/thanos/main.go

@@ -165,7 +165,7 @@ func main() {
 	}
 
 	if err := cmds[cmd](&g, logger, metrics, tracer, *logLevel == "debug"); err != nil {
-		fmt.Fprintln(os.Stderr, errors.Wrapf(err, "%s command failed", cmd))
+		level.Error(logger).Log("err", errors.Wrapf(err, "%s command failed", cmd))
 		os.Exit(1)
 	}