internal/rosa: key metadata by string

For upcoming azalea integration. The API is quite ugly right now to ease migration.

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

internal/rosa/rosa_test.go

@@ -28,7 +28,7 @@ var (
 )
 
 func TestMain(m *testing.M) {
-	rosa.DropCaches("", rosa.OptLLVMNoLTO)
+	rosa.Native().DropCaches("", rosa.OptLLVMNoLTO)
 	container.TryArgv0(nil)
 
 	code := m.Run()
@@ -77,10 +77,9 @@ func TestCureAll(t *testing.T) {
 	cache := getCache(t)
 	t.Parallel()
 
-	for i := range rosa.PresetEnd {
-		p := rosa.PArtifact(i)
-		meta := rosa.GetMetadata(p)
-		a := rosa.Std.Load(p)
+	for _, p := range rosa.Native().Collect() {
+		a, _ := rosa.Native().Load(rosa.Std, p)
+		meta := rosa.Native().MustGet(p)
 		t.Run(meta.Name, func(t *testing.T) {
 			t.Parallel()
 
@@ -94,14 +93,13 @@ func TestCureAll(t *testing.T) {
 }
 
 func BenchmarkStage3(b *testing.B) {
-	arch, flags := rosa.Arch(), rosa.Flags()
-	b.Cleanup(func() { rosa.DropCaches(arch, flags) })
+	s := rosa.Native().Clone()
 
 	for b.Loop() {
-		rosa.Std.Load(rosa.LLVM)
+		s.Load(rosa.Std, rosa.LLVM)
 
 		b.StopTimer()
-		rosa.DropCaches("", 0)
+		s.DropCaches("", 0)
 		b.StartTimer()
 	}
 }