internal/rosa: pass stage alongside state

This cleans up many function signatures.

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

internal/rosa/stage0.go

@@ -5,17 +5,17 @@ import (
 	"hakurei.app/internal/pkg"
 )
 
-func (t Toolchain) newStage0(s *S) (pkg.Artifact, string) {
-	return s.New(t, "rosa-stage0", 0, s.AppendPresets(t, nil,
+func (t Toolchain) newStage0() (pkg.Artifact, string) {
+	return t.New("rosa-stage0", 0, t.Append(nil,
 		Bzip2,
 	), nil, nil, `
 umask 377
 tar \
 	-vjc \
 	-C /stage0 \
-	-f /work/stage0-`+s.triple()+`.tar.bz2 \
+	-f /work/stage0-`+t.triple()+`.tar.bz2 \
 	.
-`, pkg.Path(fhs.AbsRoot.Append("stage0"), false, s.AppendPresets(t, nil,
+`, pkg.Path(fhs.AbsRoot.Append("stage0"), false, t.Append(nil,
 		LLVM,
 		Mksh,
 		toyboxEarly,
@@ -33,15 +33,15 @@ func init() {
 func init() {
 	const version = "20260504"
 	native.MustRegister(&Artifact{
-		f: func(_ Toolchain, s *S) (pkg.Artifact, string) {
+		f: func(t Toolchain) (pkg.Artifact, string) {
 			return newTar(
 				"https://hakurei.app/seed/"+version+"/"+
-					"stage0-"+s.triple()+".tar.bz2",
+					"stage0-"+t.triple()+".tar.bz2",
 				perArch[string]{
 					"amd64":   "IQjFDkiAVLo1XzflgMMiLP3gnVY2hhDMTzl-QqJDCQhcLQ3lLtRzjI5WCxGyW_lk",
 					"arm64":   "6fmwl2Umx2QssKQvxxb1JOGkAjzfA_MXKku0jVdGjYGb35OvwEVA5NYtd0HIy3yH",
 					"riscv64": "Z2ODV0rIoo9iQRUIu35bsaOBeXc_9qQfGcyb2aGneatzNUJlXh5emSpEV2bOklUL",
-				}.unwrap(s),
+				}.unwrap(t.S),
 				pkg.TarBzip2,
 			), version
 		},
@@ -55,7 +55,7 @@ func init() {
 func HasStage0() (ok bool) {
 	func() {
 		defer func() { ok = recover() == nil }()
-		native.Load(toolchainStage0, stage0Dist)
+		native.New(stageEarly).Load(stage0Dist)
 	}()
 	return
 }