mirror of https://github.com/zeldaret/botw.git
111 lines
3.9 KiB
Python
Executable File
111 lines
3.9 KiB
Python
Executable File
#!/usr/bin/env python3
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import argparse
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import hashlib
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from pathlib import Path
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import subprocess
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import tempfile
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import urllib.request
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from typing import Optional
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from common import setup_common as setup
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TARGET_PATH = setup.get_target_path()
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TARGET_ELF_PATH = setup.get_target_elf_path()
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def _download_v160_to_v150_patch(dest: Path):
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print(">>>> downloading patch...")
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urllib.request.urlretrieve("https://s.botw.link/v150_downgrade/v160_to_v150.patch", dest)
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def prepare_executable(original_nso: Optional[Path]):
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COMPRESSED_V150_HASH = "898dc199301f7c419be5144bb5cb27e2fc346e22b27345ba3fb40c0060c2baf8"
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UNCOMPRESSED_V150_HASH = "d9fa308d0ee7c0ab081c66d987523385e1afe06f66731bbfa32628438521c106"
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COMPRESSED_V160_HASH = "15cfca7b89348956f85d945fade2e215a6af5991ed1071e181f97ca72f7ae20b"
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UNCOMPRESSED_V160_HASH = "8a2fc8b1111a35a76fd2d53a8670599da4a7a9706a3d91215d30fd62149f00c1"
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# The uncompressed v1.5.0 main NSO.
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TARGET_HASH = UNCOMPRESSED_V150_HASH
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if TARGET_PATH.is_file() and hashlib.sha256(TARGET_PATH.read_bytes()).hexdigest() == TARGET_HASH and TARGET_ELF_PATH.is_file():
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print(">>> NSO is already set up")
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return
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if original_nso is None:
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setup.fail("please pass a path to the NSO (refer to the readme for more details)")
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if not original_nso.is_file():
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setup.fail(f"{original_nso} is not a file")
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nso_data = original_nso.read_bytes()
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nso_hash = hashlib.sha256(nso_data).hexdigest()
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if nso_hash == UNCOMPRESSED_V150_HASH:
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print(">>> found uncompressed 1.5.0 NSO")
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TARGET_PATH.write_bytes(nso_data)
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elif nso_hash == COMPRESSED_V150_HASH:
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print(">>> found compressed 1.5.0 NSO")
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setup._decompress_nso(original_nso, TARGET_PATH)
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elif nso_hash == UNCOMPRESSED_V160_HASH:
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print(">>> found uncompressed 1.6.0 NSO")
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with tempfile.TemporaryDirectory() as tmpdir:
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patch_path = Path(tmpdir) / "patch"
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_download_v160_to_v150_patch(patch_path)
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setup._apply_xdelta3_patch(original_nso, patch_path, TARGET_PATH)
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elif nso_hash == COMPRESSED_V160_HASH:
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print(">>> found compressed 1.6.0 NSO")
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with tempfile.TemporaryDirectory() as tmpdir:
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patch_path = Path(tmpdir) / "patch"
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decompressed_nso_path = Path(tmpdir) / "v160.nso"
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setup._decompress_nso(original_nso, decompressed_nso_path)
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_download_v160_to_v150_patch(patch_path)
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setup._apply_xdelta3_patch(decompressed_nso_path, patch_path, TARGET_PATH)
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else:
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setup.fail(f"unknown executable: {nso_hash}")
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if not TARGET_PATH.is_file():
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setup.fail("internal error while preparing executable (missing NSO); please report")
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if hashlib.sha256(TARGET_PATH.read_bytes()).hexdigest() != TARGET_HASH:
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setup.fail("internal error while preparing executable (wrong NSO hash); please report")
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setup._convert_nso_to_elf(TARGET_PATH)
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if not TARGET_ELF_PATH.is_file():
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setup.fail("internal error while preparing executable (missing ELF); please report")
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def create_build_dir():
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build_dir = setup.ROOT / "build"
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if build_dir.is_dir():
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print(">>> build directory already exists: nothing to do")
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return
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subprocess.check_call(
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"cmake -GNinja -DCMAKE_BUILD_TYPE=RelWithDebInfo -DCMAKE_TOOLCHAIN_FILE=toolchain/ToolchainNX64.cmake -DCMAKE_CXX_COMPILER_LAUNCHER=ccache -B build/".split(" "))
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print(">>> created build directory")
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def main():
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parser = argparse.ArgumentParser(
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"setup.py", description="Set up the Breath of the Wild decompilation project")
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parser.add_argument("original_nso", type=Path,
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help="Path to the original NSO (1.5.0 or 1.6.0, compressed or not)", nargs="?")
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args = parser.parse_args()
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setup.install_viking()
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prepare_executable(args.original_nso)
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setup.set_up_compiler("4.0.1")
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create_build_dir()
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if __name__ == "__main__":
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main()
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