cmd/loop: add cli clock and hook

cmd/loop/loopout.go

@@ -248,9 +248,9 @@ func loopOut(ctx context.Context, cmd *cli.Command) error {
 	// Set our maximum swap wait time. If a fast swap is requested we set
 	// it to now, otherwise to 30 minutes in the future.
 	fast := cmd.Bool("fast")
-	swapDeadline := time.Now()
+	swapDeadline := cliClock.Now()
 	if !fast {
-		swapDeadline = time.Now().Add(defaultSwapWaitTime)
+		swapDeadline = cliClock.Now().Add(defaultSwapWaitTime)
 	}
 
 	sweepConfTarget := int32(cmd.Uint64("conf_target"))

cmd/loop/main.go

@@ -19,6 +19,7 @@ import (
 	"github.com/lightninglabs/loop/loopd"
 	"github.com/lightninglabs/loop/looprpc"
 	"github.com/lightninglabs/loop/swap"
+	"github.com/lightningnetwork/lnd/clock"
 	"github.com/lightningnetwork/lnd/lncfg"
 	"github.com/lightningnetwork/lnd/lnrpc"
 	"github.com/lightningnetwork/lnd/macaroons"
@@ -99,6 +100,9 @@ var (
 		instantOutCommand, listInstantOutsCommand, stopCommand,
 		printManCommand, printMarkdownCommand,
 	}
+
+	// cliClock provides the time source used by CLI commands.
+	cliClock clock.Clock = clock.NewDefaultClock()
 )
 
 const (
@@ -264,6 +268,16 @@ func getClientWithConn(cmd *cli.Command) (looprpc.SwapClientClient,
 	return loopClient, conn, cleanup, nil
 }
 
+// hookClock overrides cliClock until the returned callback is called.
+func hookClock(c clock.Clock) func() {
+	prev := cliClock
+	cliClock = c
+
+	return func() {
+		cliClock = prev
+	}
+}
+
 func getMaxRoutingFee(amt btcutil.Amount) btcutil.Amount {
 	return swap.CalcFee(amt, maxRoutingFeeBase, maxRoutingFeeRate)
 }

cmd/loop/quote.go

@@ -206,9 +206,9 @@ func quoteOut(ctx context.Context, cmd *cli.Command) error {
 	defer cleanup()
 
 	fast := cmd.Bool("fast")
-	swapDeadline := time.Now()
+	swapDeadline := cliClock.Now()
 	if !fast {
-		swapDeadline = time.Now().Add(defaultSwapWaitTime)
+		swapDeadline = cliClock.Now().Add(defaultSwapWaitTime)
 	}
 
 	quoteReq := &looprpc.QuoteRequest{