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/musl-obstack.go

@@ -2,12 +2,12 @@ package rosa
 
 import "hakurei.app/internal/pkg"
 
-func (t Toolchain) newMuslObstack() (pkg.Artifact, string) {
+func (t Toolchain) newMuslObstack(s *S) (pkg.Artifact, string) {
 	const (
 		version  = "1.2.3"
 		checksum = "tVRY_KjIlkkMszcaRlkKdBVQHIXTT_T_TiMxbwErlILXrOBosocg8KklppZhNdCG"
 	)
-	return t.NewPackage("musl-obstack", version, newFromGitHub(
+	return s.NewPackage(t, "musl-obstack", version, newFromGitHub(
 		"void-linux/musl-obstack",
 		"v"+version,
 		checksum,
@@ -24,7 +24,7 @@ func (t Toolchain) newMuslObstack() (pkg.Artifact, string) {
 	), version
 }
 func init() {
-	artifactsM[MuslObstack] = Metadata{
+	native.MustRegister(&Artifact{
 		f: Toolchain.newMuslObstack,
 
 		Name:        "musl-obstack",
@@ -32,5 +32,5 @@ func init() {
 		Website:     "https://github.com/void-linux/musl-obstack",
 
 		ID: 146206,
-	}
+	})
 }