internal/rosa: provide package metadata

This had to be done out-of-band because there was no way to efficiently represent these within Artifact.

Signed-off-by: Ophestra <cat@gensokyo.uk>

internal/rosa/git.go

@@ -2,7 +2,7 @@ package rosa
 
 import "hakurei.app/internal/pkg"
 
-func (t Toolchain) newGit() pkg.Artifact {
+func (t Toolchain) newGit() (pkg.Artifact, string) {
 	const (
 		version  = "2.52.0"
 		checksum = "uH3J1HAN_c6PfGNJd2OBwW4zo36n71wmkdvityYnrh8Ak0D1IifiAvEWz9Vi9DmS"
@@ -63,9 +63,17 @@ disable_test t2200-add-update
 		Curl,
 		OpenSSL,
 		Libexpat,
-	)
+	), version
+}
+func init() {
+	artifactsM[Git] = Metadata{
+		f: Toolchain.newGit,
+
+		Name:        "git",
+		Description: "distributed version control system",
+		Website:     "https://www.git-scm.com/",
+	}
 }
-func init() { artifactsF[Git] = Toolchain.newGit }
 
 // NewViaGit returns a [pkg.Artifact] for cloning a git repository.
 func (t Toolchain) NewViaGit(