internal/pkg: optionally force implementation entry

For validation of build determinism.

Signed-off-by: Ophestra <cat@gensokyo.uk>

cmd/mbf/main.go

@@ -696,6 +696,7 @@ func main() {
 			flagNoReply bool
 			flagFaults  bool
 			flagPop     bool
+			flagRebuild bool
 
 			flagBoot bool
 			flagStd  bool
@@ -724,7 +725,11 @@ func main() {
 				default:
 					var pathname *check.Absolute
 					err := cm.Do(func(cache *pkg.Cache) (err error) {
-						pathname, _, err = cache.Cure(a)
+						if flagRebuild {
+							pathname, _, err = cache.CureNew(a)
+						} else {
+							pathname, _, err = cache.Cure(a)
+						}
 						return
 					})
 					if err != nil {
@@ -885,6 +890,10 @@ func main() {
 			&flagPop,
 			"pop", command.BoolFlag(false),
 			"Display and destroy the most recent fault entry",
+		).Flag(
+			&flagRebuild,
+			"rebuild", command.BoolFlag(false),
+			"Always enter the artifact implementation",
 		)
 	}