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/dtc.go

@@ -2,12 +2,12 @@ package rosa
 
 import "hakurei.app/internal/pkg"
 
-func (t Toolchain) newDTC() (pkg.Artifact, string) {
+func (t Toolchain) newDTC(s *S) (pkg.Artifact, string) {
 	const (
 		version  = "1.7.2"
 		checksum = "vUoiRynPyYRexTpS6USweT5p4SVHvvVJs8uqFkkVD-YnFjwf6v3elQ0-Etrh00Dt"
 	)
-	return t.NewPackage("dtc", version, newTar(
+	return s.NewPackage(t, "dtc", version, newTar(
 		"https://git.kernel.org/pub/scm/utils/dtc/dtc.git/snapshot/"+
 			"dtc-v"+version+".tar.gz",
 		checksum,
@@ -31,7 +31,7 @@ func (t Toolchain) newDTC() (pkg.Artifact, string) {
 	), version
 }
 func init() {
-	artifactsM[DTC] = Metadata{
+	native.MustRegister(&Artifact{
 		f: Toolchain.newDTC,
 
 		Name:        "dtc",
@@ -39,5 +39,5 @@ func init() {
 		Website:     "https://git.kernel.org/pub/scm/utils/dtc/dtc.git/",
 
 		ID: 16911,
-	}
+	})
 }