-a option (#86)

* add -a option

* name

cmd/torrent-create/main.go

@@ -20,13 +20,17 @@ var (
 func main() {
 	log.SetFlags(log.Flags() | log.Lshortfile)
 	var args struct {
+		AnnonceList []string `name:"a" help:"add annonce server"`
 		tagflag.StartPos
-		Root string
+		Root string `help:"Creates a torrent metainfo for the file system rooted at ROOT, and outputs it to stdout."`
 	}
-	tagflag.Parse(&args, tagflag.Description("Creates a torrent metainfo for the file system rooted at ROOT, and outputs it to stdout."))
+	tagflag.Parse(&args)
 	mi := metainfo.MetaInfo{
 		AnnounceList: builtinAnnounceList,
 	}
+	for _, a := range args.AnnonceList {
+		mi.AnnounceList = append(mi.AnnounceList, []string{a})
+	}
 	mi.SetDefaults()
 	err := mi.Info.BuildFromFilePath(args.Root)
 	if err != nil {