Fix #12, add print version flag

conf/conf.go

@@ -36,6 +36,7 @@ var Conf = struct {
 	WhiteList   []string `toml:"whitelist"`
 	Suggestions []string `toml:"suggestions"`
 	Verbose     int      `toml:"verbose"`
+	VersionOnly bool     `toml:"-"`
 }{}
 
 func init() {

conf/conf_other.go

@@ -24,6 +24,7 @@ func initArgs() {
 	flag.StringVar(&Conf.DNSServer, "d", "114.114.114.114", "client dns server")
 	flag.StringVar(&Conf.ClientIP, "c", "127.0.0.1", "client dns service redirect IP")
 	flag.StringVar(&Conf.SuggestLevel, "S", "SPEEDUP", "suggest level setting: "+strings.Join(dns.ListSuggestLevels(), ","))
+	flag.BoolVar(&Conf.VersionOnly, "V", false, "print sower version")
 
 	if !flag.Parsed() {
 		flag.Set("logtostderr", "true")

conf/conf_windows.go

@@ -21,12 +21,14 @@ const name = "sower"
 const cmdsAccepted = svc.AcceptStop | svc.AcceptShutdown | svc.AcceptPauseAndContinue
 
 func initArgs() {
-	flag.StringVar(&Conf.ConfigFile, "f", filepath.Dir(os.Args[0])+"/sower.toml", "config file location")
+	flag.StringVar(&Conf.ConfigFile, "f", filepath.Dir(os.Args[0])+"\\sower.toml", "config file location")
+	flag.BoolVar(&Conf.VersionOnly, "V", false, "print sower version")
 	install := flag.Bool("install", false, "install sower as a service")
 	uninstall := flag.Bool("uninstall", false, "uninstall sower from service list")
 
 	if !flag.Parsed() {
-		flag.Set("log_dir", filepath.Dir(os.Args[0]))
+		os.Mkdir("log", 0755)
+		flag.Set("log_dir", filepath.Dir(os.Args[0])+"/log")
 		flag.Parse()
 	}
 

main.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"fmt"
 	"net"
 
 	"github.com/golang/glog"
@@ -14,6 +15,10 @@ var version, date string
 
 func main() {
 	cfg := &conf.Conf
+	if cfg.VersionOnly {
+		fmt.Printf("Version: %s %s  config: %v", version, date, cfg)
+		return
+	}
 	glog.Infof("Starting sower(%s %s): %v", version, date, cfg)
 
 	tran, err := transport.GetTransport(cfg.NetType)