version: Include race build tag

Signed-off-by: Toni Cárdenas <toni.cardenasvargas@grafana.com>

Author: tcard

version/info.go

@@ -126,6 +126,9 @@ func computeRevision() (string, string) {
 		tags     = "unknown"
 		modified bool
 	)
+	if race {
+		tags = "race"
+	}
 
 	buildInfo, ok := debug.ReadBuildInfo()
 	if !ok {
@@ -141,7 +144,11 @@ func computeRevision() (string, string) {
 			}
 		}
 		if v.Key == "-tags" {
-			tags = v.Value
+			if race {
+				tags = v.Value + ",race"
+			} else {
+				tags = v.Value
+			}
 		}
 	}
 	if modified {

version/info_norace.go

@@ -0,0 +1,18 @@
+// Copyright 2026 The Prometheus Authors
+// 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,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//go:build !race
+
+package version
+
+var race = false

version/info_race.go

@@ -0,0 +1,18 @@
+// Copyright 2026 The Prometheus Authors
+// 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,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//go:build race
+
+package version
+
+var race = true