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/libgd.go

@@ -2,7 +2,7 @@ package rosa
 
 import "hakurei.app/internal/pkg"
 
-func (t Toolchain) newLibgd() pkg.Artifact {
+func (t Toolchain) newLibgd() (pkg.Artifact, string) {
 	const (
 		version  = "2.3.3"
 		checksum = "8T-sh1_FJT9K9aajgxzh8ot6vWIF-xxjcKAHvTak9MgGUcsFfzP8cAvvv44u2r36"
@@ -21,6 +21,14 @@ mkdir /dev/shm/gd
 `,
 	}, (*MakeHelper)(nil),
 		Zlib,
-	)
+	), version
+}
+func init() {
+	artifactsM[Libgd] = Metadata{
+		f: Toolchain.newLibgd,
+
+		Name:        "libgd",
+		Description: "an open source code library for the dynamic creation of images",
+		Website:     "https://libgd.github.io/",
+	}
 }
-func init() { artifactsF[Libgd] = Toolchain.newLibgd }