// NewVtctlPipe creates a new VtctlPipe based on the given topo server.
func NewVtctlPipe(t *testing.T, ts topo.Server) *VtctlPipe {
// Register all vtctl commands
servenvInitialized.Do(func() {
// make sure we use the right protocol
flag.Set("vtctl_client_protocol", "grpc")
// Enable all query groups
flag.Set("enable_queries", "true")
servenv.FireRunHooks()
})
// Listen on a random port
listener, err := net.Listen("tcp", ":0")
if err != nil {
t.Fatalf("Cannot listen: %v", err)
}
// Create a gRPC server and listen on the port
server := grpc.NewServer()
grpcvtctlserver.StartServer(server, ts)
go server.Serve(listener)
// Create a VtctlClient gRPC client to talk to the fake server
client, err := vtctlclient.New(listener.Addr().String(), 30*time.Second)
if err != nil {
t.Fatalf("Cannot create client: %v", err)
}
return &VtctlPipe{
listener: listener,
client: client,
t: t,
}
}
func main() {
defer exit.RecoverAll()
defer logutil.Flush()
flag.Parse()
args := flag.Args()
if len(args) == 0 {
flag.Usage()
exit.Return(1)
}
action := args[0]
startMsg := fmt.Sprintf("USER=%v SUDO_USER=%v %v", os.Getenv("USER"), os.Getenv("SUDO_USER"), strings.Join(os.Args, " "))
if syslogger, err := syslog.New(syslog.LOG_INFO, "vtctl "); err == nil {
syslogger.Info(startMsg)
} else {
log.Warningf("cannot connect to syslog: %v", err)
}
servenv.FireRunHooks()
topoServer := topo.GetServer()
defer topo.CloseServers()
ctx, cancel := context.WithTimeout(context.Background(), *waitTime)
wr := wrangler.New(logutil.NewConsoleLogger(), topoServer, tmclient.NewTabletManagerClient())
installSignalHandlers(cancel)
err := vtctl.RunCommand(ctx, wr, args)
cancel()
switch err {
case vtctl.ErrUnknownCommand:
flag.Usage()
exit.Return(1)
case nil:
// keep going
default:
log.Errorf("action failed: %v %v", action, err)
exit.Return(255)
}
}
