internal/rosa: create metadata alongside artifact

This enables deferring evaluation of azalea-based packages and fixes the longstanding quirk of version being disjoint from other metadata.

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

internal/rosa/stage0.go

@@ -5,10 +5,16 @@ import (
 	"hakurei.app/internal/pkg"
 )
 
-func (t Toolchain) newStage0() (pkg.Artifact, string) {
-	return t.New("rosa-stage0", 0, t.Append(nil,
-		Bzip2,
-	), nil, nil, `
+func init() {
+	meta := Metadata{
+		Name:        "rosa-stage0",
+		Description: "Rosa OS stage0 toolchain tarball for bootstrap",
+		Version:     Unversioned,
+	}
+	native.MustRegister(meta.Name, func(t Toolchain) (*Metadata, pkg.Artifact) {
+		return &meta, t.New("rosa-stage0", 0, t.Append(nil,
+			Bzip2,
+		), nil, nil, `
 umask 377
 tar \
 	-vjc \
@@ -16,38 +22,30 @@ tar \
 	-f /work/stage0-`+t.triple()+`.tar.bz2 \
 	.
 `, pkg.Path(fhs.AbsRoot.Append("stage0"), false, t.Append(nil,
-		LLVM,
-		Mksh,
-		toyboxEarly,
-	)...)), Unversioned
-}
-func init() {
-	native.MustRegister(&Artifact{
-		f: Toolchain.newStage0,
-
-		Name:        "rosa-stage0",
-		Description: "Rosa OS stage0 toolchain tarball for bootstrap",
+			LLVM,
+			Mksh,
+			toyboxEarly,
+		)...))
 	})
 }
 
 func init() {
-	const version = "20260504"
-	native.MustRegister(&Artifact{
-		f: func(t Toolchain) (pkg.Artifact, string) {
-			return newTar(
-				"https://hakurei.app/seed/"+version+"/"+
-					"stage0-"+t.triple()+".tar.bz2",
-				perArch[string]{
-					"amd64":   "IQjFDkiAVLo1XzflgMMiLP3gnVY2hhDMTzl-QqJDCQhcLQ3lLtRzjI5WCxGyW_lk",
-					"arm64":   "6fmwl2Umx2QssKQvxxb1JOGkAjzfA_MXKku0jVdGjYGb35OvwEVA5NYtd0HIy3yH",
-					"riscv64": "Z2ODV0rIoo9iQRUIu35bsaOBeXc_9qQfGcyb2aGneatzNUJlXh5emSpEV2bOklUL",
-				}.unwrap(t.S),
-				pkg.TarBzip2,
-			), version
-		},
-
+	meta := Metadata{
 		Name:        "stage0-dist",
 		Description: "Rosa OS stage0 bootstrap seed",
+		Version:     "20260504",
+	}
+	native.MustRegister(meta.Name, func(t Toolchain) (*Metadata, pkg.Artifact) {
+		return &meta, newTar(
+			"https://hakurei.app/seed/"+meta.Version+"/"+
+				"stage0-"+t.triple()+".tar.bz2",
+			perArch[string]{
+				"amd64":   "IQjFDkiAVLo1XzflgMMiLP3gnVY2hhDMTzl-QqJDCQhcLQ3lLtRzjI5WCxGyW_lk",
+				"arm64":   "6fmwl2Umx2QssKQvxxb1JOGkAjzfA_MXKku0jVdGjYGb35OvwEVA5NYtd0HIy3yH",
+				"riscv64": "Z2ODV0rIoo9iQRUIu35bsaOBeXc_9qQfGcyb2aGneatzNUJlXh5emSpEV2bOklUL",
+			}.unwrap(t.S),
+			pkg.TarBzip2,
+		)
 	})
 }