Easy way to print version information, bumped version

gnatsd.go

@@ -7,6 +7,7 @@ import (
 	"log"
 	"net/http"
 	_ "net/http/pprof"
+	"strings"
 
 	"github.com/apcera/gnatsd/server"
 )
@@ -17,6 +18,7 @@ func main() {
 
 	opts := server.Options{}
 
+	var showVersion bool
 	var debugAndTrace bool
 	var configFile string
 
@@ -38,13 +40,28 @@ func main() {
 	flag.IntVar(&opts.HttpPort, "http_port", 0, "HTTP Port for /varz, /connz endpoints.")
 	flag.StringVar(&configFile, "c", "", "Configuration file.")
 	flag.StringVar(&configFile, "config", "", "Configuration file.")
+	flag.BoolVar(&showVersion, "version", false, "Print version information.")
+	flag.BoolVar(&showVersion, "v", false, "Print version information.")
 
 	flag.Parse()
 
+	// Show version and exit
+	if showVersion {
+		server.PrintServerAndExit()
+	}
+
 	if debugAndTrace {
 		opts.Trace, opts.Debug = true, true
 	}
 
+	// Process args, version only for now
+	for _, arg := range flag.Args() {
+		arg = strings.ToLower(arg)
+		if arg == "version" {
+			server.PrintServerAndExit()
+		}
+	}
+
 	var fileOpts *server.Options
 	var err error
 

server/const.go

@@ -1,4 +1,4 @@
-// Copyright 2012 Apcera Inc. All rights reserved.
+// Copyright 2012,2013 Apcera Inc. All rights reserved.
 
 package server
 
@@ -7,7 +7,7 @@ import (
 )
 
 const (
-	VERSION = "go-0.2.8.alpha.2"
+	VERSION = "go-0.2.10.alpha.1"
 
 	DEFAULT_PORT = 4222
 	DEFAULT_HOST = "0.0.0.0"

server/server.go

@@ -94,6 +94,12 @@ func New(opts *Options) *Server {
 	return s
 }
 
+// Print our version and exit
+func PrintServerAndExit() {
+	fmt.Printf("%s\n", VERSION)
+	os.Exit(0)
+}
+
 // Signal Handling
 func (s *Server) handleSignals() {
 	if s.opts.NoSigs {