util/printer: add race enabled in TiDBInfo (pingcap#6311)

Makes it easy to check if the binary is build with race.

tidb-server/main.go

@@ -124,7 +124,7 @@ var (
 func main() {
 	flag.Parse()
 	if *version {
-		printer.PrintRawTiDBInfo()
+		fmt.Println(printer.GetTiDBInfo())
 		os.Exit(0)
 	}
 

util/israce/israce.go

@@ -0,0 +1,19 @@
+// Copyright 2018 PingCAP, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build race
+
+package israce
+
+// RaceEnabled checks if race is enabled.
+const RaceEnabled = true

util/israce/norace.go

@@ -0,0 +1,19 @@
+// Copyright 2018 PingCAP, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build !race
+
+package israce
+
+// RaceEnabled checks if race is enabled.
+const RaceEnabled = false

util/printer/printer.go

@@ -20,6 +20,7 @@ import (
 
 	"github.com/pingcap/tidb/config"
 	"github.com/pingcap/tidb/mysql"
+	"github.com/pingcap/tidb/util/israce"
 	log "github.com/sirupsen/logrus"
 )
 
@@ -41,6 +42,7 @@ func PrintTiDBInfo() {
 	log.Infof("Git Branch: %s", TiDBGitBranch)
 	log.Infof("UTC Build Time:  %s", TiDBBuildTS)
 	log.Infof("GoVersion:  %s", GoVersion)
+	log.Infof("Race Enabled: %v", israce.RaceEnabled)
 	log.Infof("TiKV Min Version: %s", TiKVMinVersion)
 	configJSON, err := json.Marshal(config.GetGlobalConfig())
 	if err != nil {
@@ -49,20 +51,22 @@ func PrintTiDBInfo() {
 	log.Infof("Config: %s", configJSON)
 }
 
-// PrintRawTiDBInfo prints the TiDB version information without log info.
-func PrintRawTiDBInfo() {
-	fmt.Println("Release Version: ", mysql.TiDBReleaseVersion)
-	fmt.Println("Git Commit Hash: ", TiDBGitHash)
-	fmt.Println("Git Commit Branch: ", TiDBGitBranch)
-	fmt.Println("UTC Build Time: ", TiDBBuildTS)
-	fmt.Println("GoVersion: ", GoVersion)
-	fmt.Println("TiKV Min Version: ", TiKVMinVersion)
-}
-
 // GetTiDBInfo returns the git hash and build time of this tidb-server binary.
 func GetTiDBInfo() string {
-	return fmt.Sprintf("Release Version: %s\nGit Commit Hash: %s\nGit Branch: %s\nUTC Build Time: %s\nGoVersion: %s\nTiKV Min Version: %s",
-		mysql.TiDBReleaseVersion, TiDBGitHash, TiDBGitBranch, TiDBBuildTS, GoVersion, TiKVMinVersion)
+	return fmt.Sprintf("Release Version: %s\n"+
+		"Git Commit Hash: %s\n"+
+		"Git Branch: %s\n"+
+		"UTC Build Time: %s\n"+
+		"GoVersion: %s\n"+
+		"Race Enabled: %v\n"+
+		"TiKV Min Version: %s",
+		mysql.TiDBReleaseVersion,
+		TiDBGitHash,
+		TiDBGitBranch,
+		TiDBBuildTS,
+		GoVersion,
+		israce.RaceEnabled,
+		TiKVMinVersion)
 }
 
 // checkValidity checks whether cols and every data have the same length.