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/nettle.go

@@ -2,12 +2,12 @@ package rosa
 
 import "hakurei.app/internal/pkg"
 
-func (t Toolchain) newNettle() (pkg.Artifact, string) {
+func (t Toolchain) newNettle(s *S) (pkg.Artifact, string) {
 	const (
 		version  = "4.0"
 		checksum = "6agC-vHzzoqAlaX3K9tX8yHgrm03HLqPZzVzq8jh_ePbuPMIvpxereu_uRJFmQK7"
 	)
-	return t.NewPackage("nettle", version, newTar(
+	return s.NewPackage(t, "nettle", version, newTar(
 		"https://ftpmirror.gnu.org/gnu/nettle/nettle-"+version+".tar.gz",
 		checksum,
 		pkg.TarGzip,
@@ -19,7 +19,7 @@ func (t Toolchain) newNettle() (pkg.Artifact, string) {
 	), version
 }
 func init() {
-	artifactsM[Nettle] = Metadata{
+	native.MustRegister(&Artifact{
 		f: Toolchain.newNettle,
 
 		Name:        "nettle",
@@ -31,5 +31,5 @@ func init() {
 		},
 
 		ID: 2073,
-	}
+	})
 }