Include go version into builds

pkg/cli/cli.go

@@ -143,12 +143,14 @@ func initOptions() {
 }
 
 func printVersion() {
-	str := fmt.Sprintf("Pgweb v%s", command.Version)
+	chunks := []string{fmt.Sprintf("Pgweb v%s", command.Version)}
 	if command.GitCommit != "" {
-		str += fmt.Sprintf(" (git: %s)", command.GitCommit)
+		chunks = append(chunks, fmt.Sprintf("(git: %s)", command.GitCommit))
 	}
-
-	fmt.Println(str)
+	if command.GoVersion != "" {
+		chunks = append(chunks, fmt.Sprintf("(go: %s)", command.GoVersion))
+	}
+	fmt.Println(strings.Join(chunks, " "))
 }
 
 func startServer() {

pkg/command/version.go

@@ -1,10 +1,17 @@
 package command
 
 const (
+	// Version is the current Pgweb application version
 	Version = "0.11.4"
 )
 
 var (
+	// GitCommit contains the Git commit SHA for the binary
 	GitCommit string
+
+	// BuildTime contains the binary build time
 	BuildTime string
+
+	// GoVersion contains the Go runtime version
+	GoVersion string
 )