internal/rosa: read-only access to built-ins

This removes potential footguns caused by mutable builtins without requiring unnecessary clones.

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

cmd/mbf/info.go

@@ -21,7 +21,7 @@ func commandInfo(
 	r *rosa.Report,
 ) (err error) {
 	if len(args) == 0 {
-		for _, h := range rosa.Native().CollectAll() {
+		for _, h := range rosa.CollectAll() {
 			fmt.Println(h)
 		}
 		return nil
@@ -39,10 +39,9 @@ func commandInfo(
 		}
 	}
 
-	t := rosa.Native().Std()
 	for i, name := range args {
 		handle := rosa.ArtifactH(unique.Make(name))
-		if meta, a := t.Load(handle); meta == nil {
+		if meta, a := rosa.Load(handle); meta == nil {
 			return fmt.Errorf("unknown artifact %q", name)
 		} else {
 			var suffix string
@@ -60,7 +59,7 @@ func commandInfo(
 			if len(meta.Dependencies) > 0 {
 				mustPrint("depends on  :")
 				for _, d := range meta.Dependencies {
-					_meta, _ := rosa.Native().Std().MustLoad(d)
+					_meta, _ := rosa.MustLoad(d)
 					s := _meta.Name
 					if _meta.Version != rosa.Unversioned {
 						s += "-" + _meta.Version