func shellPrompt() error {
stub = context.Background()
opts := []grpc.DialOption{grpc.WithInsecure()}
conn, err := grpc.Dial("localhost:10000", opts...)
if err != nil {
return err
}
z = lnrpc.NewLightningClient(conn)
for {
reader := bufio.NewReaderSize(os.Stdin, 4000)
fmt.Printf("->")
msg, err := reader.ReadString('\n')
if err != nil {
return err
}
cmdslice := strings.Fields(msg)
if len(cmdslice) < 1 {
continue
}
fmt.Printf("entered command: %s\n", msg)
err = Shellparse(cmdslice)
if err != nil {
return err
}
}
}
// start launches a new process running lnd. Additionally, the PID of the
// launched process is saved in order to possibly kill the process forcibly
// later.
func (l *lightningNode) start(lndError chan error) error {
args := l.genArgs()
l.cmd = exec.Command("lnd", args...)
// Redirect stderr output to buffer
var errb bytes.Buffer
l.cmd.Stderr = &errb
if err := l.cmd.Start(); err != nil {
return err
}
// Launch a new goroutine which that bubbles up any potential fatal
// process errors to the goroutine running the tests.
go func() {
if err := l.cmd.Wait(); err != nil {
lndError <- errors.New(errb.String())
}
}()
pid, err := os.Create(filepath.Join(l.cfg.DataDir,
fmt.Sprintf("%s.pid", l.nodeId)))
if err != nil {
return err
}
l.pidFile = pid.Name()
if _, err = fmt.Fprintf(pid, "%s\n", l.cmd.Process.Pid); err != nil {
return err
}
if err := pid.Close(); err != nil {
return err
}
opts := []grpc.DialOption{
grpc.WithInsecure(),
grpc.WithBlock(),
grpc.WithTimeout(time.Second * 20),
}
conn, err := grpc.Dial(l.rpcAddr, opts...)
if err != nil {
return nil
}
l.LightningClient = lnrpc.NewLightningClient(conn)
// Obtain the lnid of this node for quick identification purposes.
ctxb := context.Background()
info, err := l.GetInfo(ctxb, &lnrpc.GetInfoRequest{})
if err != nil {
return nil
}
l.PubKeyStr = info.IdentityPubkey
pubkey, err := hex.DecodeString(info.IdentityPubkey)
if err != nil {
return err
}
copy(l.PubKey[:], pubkey)
return nil
}
func getClient(ctx *cli.Context) lnrpc.LightningClient {
conn := getClientConn(ctx)
return lnrpc.NewLightningClient(conn)
}