#!/usr/bin/env python3

# Copyright 2023 The Emscripten Authors. All rights reserved.

# Emscripten is available under two separate licenses, the MIT license and the

# University of Illinois/NCSA Open Source License. Both these licenses can be

# found in the LICENSE file.

import os

import sys

import shutil

script_dir = os.path.abspath(os.path.dirname(__file__))

emscripten_root = os.path.dirname(os.path.dirname(script_dir))

default_llvm_dir = os.path.join(os.path.dirname(emscripten_root), 'llvm-project')

local_root = os.path.join(script_dir, 'libunwind')

local_src = os.path.join(local_root, 'src')

local_inc = os.path.join(local_root, 'include')

def main():

if len(sys.argv) > 1:

llvm_dir = os.path.join(os.path.abspath(sys.argv[1]))

else:

llvm_dir = default_llvm_dir

upstream_root = os.path.join(llvm_dir, 'libunwind')

upstream_src = os.path.join(upstream_root, 'src')

upstream_inc = os.path.join(upstream_root, 'include')

assert os.path.exists(upstream_inc)

assert os.path.exists(upstream_src)

# Remove old version

shutil.rmtree(local_src)

shutil.rmtree(local_inc)

shutil.copytree(upstream_src, local_src)

shutil.copytree(upstream_inc, local_inc)

shutil.copy2(os.path.join(upstream_root, 'LICENSE.TXT'), local_root)

if __name__ == '__main__':

main()