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/zstd.go

@@ -2,12 +2,12 @@ package rosa
 
 import "hakurei.app/internal/pkg"
 
-func (t Toolchain) newZstd() (pkg.Artifact, string) {
+func (t Toolchain) newZstd(s *S) (pkg.Artifact, string) {
 	const (
 		version  = "1.5.7"
 		checksum = "4XhfR7DwVkwo1R-TmYDAJOcx9YXv9WSFhcFUe3hWEAMmdMLPhFaznCqYIA19_xxV"
 	)
-	return t.NewPackage("zstd", version, newFromGitHubRelease(
+	return s.NewPackage(t, "zstd", version, newFromGitHubRelease(
 		"facebook/zstd",
 		"v"+version,
 		"zstd-"+version+".tar.gz",
@@ -29,7 +29,7 @@ ZSTD_BIN=/cure/programs/zstd /usr/src/zstd/tests/playTests.sh
 	), version
 }
 func init() {
-	artifactsM[Zstd] = Metadata{
+	native.MustRegister(&Artifact{
 		f: Toolchain.newZstd,
 
 		Name:        "zstd",
@@ -37,5 +37,5 @@ func init() {
 		Website:     "https://facebook.github.io/zstd/",
 
 		ID: 12083,
-	}
+	})
 }