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/pixman.go

@@ -2,12 +2,12 @@ package rosa
 
 import "hakurei.app/internal/pkg"
 
-func (t Toolchain) newPixman() (pkg.Artifact, string) {
+func (t Toolchain) newPixman(s *S) (pkg.Artifact, string) {
 	const (
 		version  = "0.46.4"
 		checksum = "iECDxLG9SxUrvGHqeDoaBa-b3uqdT5DC4zudjtrwb8Wodq82pyacmFNEAo4SDsiE"
 	)
-	return t.NewPackage("pixman", version, newFromGitLab(
+	return s.NewPackage(t, "pixman", version, newFromGitLab(
 		"gitlab.freedesktop.org",
 		"pixman/pixman",
 		"pixman-"+version,
@@ -19,7 +19,7 @@ func (t Toolchain) newPixman() (pkg.Artifact, string) {
 	}), version
 }
 func init() {
-	artifactsM[Pixman] = Metadata{
+	native.MustRegister(&Artifact{
 		f: Toolchain.newPixman,
 
 		Name:        "pixman",
@@ -27,5 +27,5 @@ func init() {
 		Website:     "https://pixman.org/",
 
 		ID: 3648,
-	}
+	})
 }