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/bzip2.go

@@ -2,12 +2,12 @@ package rosa
 
 import "hakurei.app/internal/pkg"
 
-func (t Toolchain) newBzip2() (pkg.Artifact, string) {
+func (t Toolchain) newBzip2(s *S) (pkg.Artifact, string) {
 	const (
 		version  = "1.0.8"
 		checksum = "cTLykcco7boom-s05H1JVsQi1AtChYL84nXkg_92Dm1Xt94Ob_qlMg_-NSguIK-c"
 	)
-	return t.NewPackage("bzip2", version, newTar(
+	return s.NewPackage(t, "bzip2", version, newTar(
 		"https://sourceware.org/pub/bzip2/bzip2-"+version+".tar.gz",
 		checksum,
 		pkg.TarGzip,
@@ -26,7 +26,7 @@ func (t Toolchain) newBzip2() (pkg.Artifact, string) {
 	}), version
 }
 func init() {
-	artifactsM[Bzip2] = Metadata{
+	native.MustRegister(&Artifact{
 		f: Toolchain.newBzip2,
 
 		Name:        "bzip2",
@@ -34,5 +34,5 @@ func init() {
 		Website:     "https://sourceware.org/bzip2/",
 
 		ID: 237,
-	}
+	})
 }