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Merged
leoetlino merged 1 commit into from
Sep 20, 2026
Merged

setup: add 1.6.0 back #203

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59 changes: 34 additions & 25 deletions tools/setup.py
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Original file line number Diff line number Diff line change
Expand Up @@ -18,14 +18,16 @@
TARGET_ELF_PATH = setup.get_target_elf_path()


def _download_latest_to_v150_patch(dest: Path):
print(">>>> downloading patch...")
urllib.request.urlretrieve("https://s.botw.link/v150_downgrade/v190_to_v150.patch", dest)
def _download_downgrade_to_v150_patch(version: str, dest: Path):
print(f">>>> downloading patch for {version}...")
urllib.request.urlretrieve(f"https://s.botw.link/v150_downgrade/{version}_to_v150.patch", dest)


def prepare_executable(original_nso: Optional[Path]):
COMPRESSED_V150_HASH = "898dc199301f7c419be5144bb5cb27e2fc346e22b27345ba3fb40c0060c2baf8"
UNCOMPRESSED_V150_HASH = "d9fa308d0ee7c0ab081c66d987523385e1afe06f66731bbfa32628438521c106"
COMPRESSED_V160_HASH = "15cfca7b89348956f85d945fade2e215a6af5991ed1071e181f97ca72f7ae20b"
UNCOMPRESSED_V160_HASH = "8a2fc8b1111a35a76fd2d53a8670599da4a7a9706a3d91215d30fd62149f00c1"
COMPRESSED_V190_HASH = "f6f0b20bb1f2b67d164c24871cd473147eef1d285f12e7bd492e3126c6022e27"
UNCOMPRESSED_V190_HASH = "6a30c162a2e6f885e0b1c0a6673a84795549a5ccdec1de8d3a741168ac4cba86"

Expand All @@ -45,33 +47,40 @@ def prepare_executable(original_nso: Optional[Path]):
nso_data = original_nso.read_bytes()
nso_hash = hashlib.sha256(nso_data).hexdigest()

if nso_hash == UNCOMPRESSED_V150_HASH:
print(">>> found uncompressed 1.5.0 NSO")
TARGET_PATH.write_bytes(nso_data)

elif nso_hash == COMPRESSED_V150_HASH:
print(">>> found compressed 1.5.0 NSO")
setup._decompress_nso(original_nso, TARGET_PATH)

elif nso_hash == UNCOMPRESSED_V190_HASH:
print(">>> found uncompressed 1.9.0 NSO")
version_matrix = [
# SHA256 Compressed? Version
(UNCOMPRESSED_V150_HASH, False, "1.5.0"),
( COMPRESSED_V150_HASH, True, "1.5.0"),
(UNCOMPRESSED_V160_HASH, False, "1.6.0"),
( COMPRESSED_V160_HASH, True, "1.6.0"),
(UNCOMPRESSED_V190_HASH, False, "1.9.0"),
( COMPRESSED_V190_HASH, True, "1.9.0"),
]

for (expected_hash, is_compressed, version_str) in version_matrix:
if nso_hash != expected_hash:
continue
print(f">>> found {"compressed" if is_compressed else "uncompressed"} {version_str} NSO")

if version_str == "1.5.0":
if is_compressed:
setup._decompress_nso(original_nso, TARGET_PATH)
else:
TARGET_PATH.write_bytes(nso_data)
break

with tempfile.TemporaryDirectory() as tmpdir:
patch_path = Path(tmpdir) / "patch"
_download_latest_to_v150_patch(patch_path)
setup._apply_xdelta3_patch(original_nso, patch_path, TARGET_PATH)
patch_version_str = "v" + version_str.replace(".","")
_download_downgrade_to_v150_patch(patch_version_str, patch_path)
if is_compressed:
decompressed_nso_path = Path(tmpdir) / f"{patch_version_str}.nso"
setup._decompress_nso(original_nso, decompressed_nso_path)
else:
decompressed_nso_path = original_nso

elif nso_hash == COMPRESSED_V190_HASH:
print(">>> found compressed 1.9.0 NSO")

with tempfile.TemporaryDirectory() as tmpdir:
patch_path = Path(tmpdir) / "patch"
decompressed_nso_path = Path(tmpdir) / "v190.nso"

setup._decompress_nso(original_nso, decompressed_nso_path)
_download_latest_to_v150_patch(patch_path)
setup._apply_xdelta3_patch(decompressed_nso_path, patch_path, TARGET_PATH)

break
else:
setup.fail(f"unknown executable: {nso_hash}")

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