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/libepoxy.go

@@ -2,12 +2,12 @@ package rosa
 
 import "hakurei.app/internal/pkg"
 
-func (t Toolchain) newLibepoxy() (pkg.Artifact, string) {
+func (t Toolchain) newLibepoxy(s *S) (pkg.Artifact, string) {
 	const (
 		version  = "1.5.10"
 		checksum = "OHI8wshrlGw6BMGrmSyejJtwzM2gPhyFJrTsKxULyKMmYrfgcOe7Iw2ibVoUND_Q"
 	)
-	return t.NewPackage("libepoxy", version, newFromGitHub(
+	return s.NewPackage(t, "libepoxy", version, newFromGitHub(
 		"anholt/libepoxy",
 		version,
 		checksum,
@@ -21,7 +21,7 @@ func (t Toolchain) newLibepoxy() (pkg.Artifact, string) {
 	), version
 }
 func init() {
-	artifactsM[Libepoxy] = Metadata{
+	native.MustRegister(&Artifact{
 		f: Toolchain.newLibepoxy,
 
 		Name:        "libepoxy",
@@ -29,5 +29,5 @@ func init() {
 		Website:     "https://github.com/anholt/libepoxy",
 
 		ID: 6090,
-	}
+	})
 }