internal/rosa/gtk: fetch glib source via git

This eliminates xz dependency.

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

internal/rosa/gtk.go

@@ -1,8 +1,6 @@
 package rosa
 
 import (
-	"strings"
-
 	"hakurei.app/fhs"
 	"hakurei.app/internal/pkg"
 )
@@ -10,16 +8,13 @@ import (
 func (t Toolchain) newGLib() (pkg.Artifact, string) {
 	const (
 		version  = "2.88.0"
-		checksum = "bCLkAmp1o_Po4cXDbC06AyjLyxkBxyNJnflwBpSdf4W8K6dc9xKj6Pm3JYbHPdDf"
+		checksum = "T79Cg4z6j-sDZ2yIwvbY4ccRv2-fbwbqgcw59F5NQ6qJT6z4v261vbYp3dHO6Ma3"
 	)
-	return t.NewPackage("glib", version, pkg.NewHTTPGet(
-		nil, "https://download.gnome.org/sources/glib/"+
-			strings.Join(strings.SplitN(version, ".", 3)[:2], ".")+
-			"/glib-"+version+".tar.xz",
+	return t.NewPackage("glib", version, t.NewViaGit(
+		"https://gitlab.gnome.org/GNOME/glib.git",
+		"refs/tags/"+version,
 		mustDecode(checksum),
 	), &PackageAttr{
-		SourceKind: SourceKindTarXZ,
-
 		Paths: []pkg.ExecPath{
 			pkg.Path(fhs.AbsEtc.Append(
 				"machine-id",
@@ -39,7 +34,6 @@ func (t Toolchain) newGLib() (pkg.Artifact, string) {
 			{"Ddefault_library", "both"},
 		},
 	},
-		XZ,
 		PythonPackaging,
 		Bash,