loop: static address creation client command

cmd/loop/loopin.go

@@ -52,6 +52,9 @@ var (
 		Name:      "in",
 		Usage:     "perform an on-chain to off-chain swap (loop in)",
 		ArgsUsage: "amt",
+		Subcommands: []cli.Command{
+			staticAddressCommands,
+		},
 		Description: `
 		Send the amount in satoshis specified by the amt argument 
 		off-chain.

cmd/loop/main.go

@@ -149,6 +149,7 @@ func main() {
 		setLiquidityRuleCommand, suggestSwapCommand, setParamsCommand,
 		getInfoCommand, abandonSwapCommand, reservationsCommands,
 		instantOutCommand, listInstantOutsCommand,
+		staticAddressCommands,
 	}
 
 	err := app.Run(os.Args)

cmd/loop/staticaddr.go

@@ -0,0 +1,76 @@
+package main
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/lightninglabs/loop/looprpc"
+	"github.com/urfave/cli"
+)
+
+var staticAddressCommands = cli.Command{
+	Name:      "static",
+	ShortName: "s",
+	Usage:     "manage static loop-in addresses",
+	Category:  "StaticAddress",
+	Subcommands: []cli.Command{
+		newStaticAddressCommand,
+	},
+}
+
+var newStaticAddressCommand = cli.Command{
+	Name:      "new",
+	ShortName: "n",
+	Usage:     "Create a new static loop in address.",
+	Description: `
+	Requests a new static loop in address from the server. Funds that are
+	sent to this address will be locked by a 2:2 multisig between us and the
+	loop server, or a timeout path that we can sweep once it opens up. The 
+	funds can either be cooperatively spent with a signature from the server
+	or looped in.
+	`,
+	Action: newStaticAddress,
+}
+
+func newStaticAddress(ctx *cli.Context) error {
+	ctxb := context.Background()
+	if ctx.NArg() > 0 {
+		return cli.ShowCommandHelp(ctx, "new")
+	}
+
+	client, cleanup, err := getAddressClient(ctx)
+	if err != nil {
+		return err
+	}
+	defer cleanup()
+
+	resp, err := client.NewAddress(
+		ctxb, &looprpc.NewAddressRequest{},
+	)
+	if err != nil {
+		return err
+	}
+
+	fmt.Printf("Received a new static loop-in address from the server: "+
+		"%s\n", resp.Address)
+
+	return nil
+}
+
+func getAddressClient(ctx *cli.Context) (looprpc.StaticAddressClientClient,
+	func(), error) {
+
+	rpcServer := ctx.GlobalString("rpcserver")
+	tlsCertPath, macaroonPath, err := extractPathArgs(ctx)
+	if err != nil {
+		return nil, nil, err
+	}
+	conn, err := getClientConn(rpcServer, tlsCertPath, macaroonPath)
+	if err != nil {
+		return nil, nil, err
+	}
+	cleanup := func() { conn.Close() }
+
+	addressClient := looprpc.NewStaticAddressClientClient(conn)
+	return addressClient, cleanup, nil
+}