Make interactive deal CLI reject deals shorter than minimum duration

cli/client.go

@@ -12,6 +12,8 @@ import (
 	"text/tabwriter"
 	"time"
 
+	"github.com/filecoin-project/specs-actors/actors/builtin"
+
 	tm "github.com/buger/goterm"
 	"github.com/docker/go-units"
 	"github.com/fatih/color"
@@ -527,6 +529,11 @@ func interactiveDeal(cctx *cli.Context) error {
 				continue
 			}
 
+			if days < int(build.MinDealDuration/builtin.EpochsInDay) {
+				printErr(xerrors.Errorf("minimum duration is %d days", int(build.MinDealDuration/builtin.EpochsInDay)))
+				continue
+			}
+
 			state = "miner"
 		case "miner":
 			fmt.Print("Miner Address (t0..): ")