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/libarchive.go

@@ -2,12 +2,12 @@ package rosa
 
 import "hakurei.app/internal/pkg"
 
-func (t Toolchain) newLibarchive() (pkg.Artifact, string) {
+func (t Toolchain) newLibarchive(s *S) (pkg.Artifact, string) {
 	const (
 		version  = "3.8.7"
 		checksum = "CUJK4MDQmZmATClgQBH2Wt-7Ts4iiSUlg1J_TVb6-5IK3rVUgVLIMc5k-bnWB9w3"
 	)
-	return t.NewPackage("libarchive", version, newFromGitHub(
+	return s.NewPackage(t, "libarchive", version, newFromGitHub(
 		"libarchive/libarchive",
 		"v"+version, checksum,
 	), &PackageAttr{
@@ -88,7 +88,7 @@ install -Dv /usr/src/CTestCustom.cmake /cure/
 	}, (*CMakeHelper)(nil)), version
 }
 func init() {
-	artifactsM[Libarchive] = Metadata{
+	native.MustRegister(&Artifact{
 		f: Toolchain.newLibarchive,
 
 		Name:        "libarchive",
@@ -96,5 +96,5 @@ func init() {
 		Website:     "https://www.libarchive.org/",
 
 		ID: 1558,
-	}
+	})
 }