Ludovic Marie
3777c9009b
Checkpoint of the playable client rewrite before build verification. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
56 lines
2.0 KiB
Python
56 lines
2.0 KiB
Python
#!/usr/bin/env python3
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"""Fetch the pinned version's sound assets (sounds.json and .ogg files) from
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Mojang's asset index into the private client resource directory, verifying
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every object's SHA-1. The files stay in ignored .local/ and are never committed."""
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import concurrent.futures
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import hashlib
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import json
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from pathlib import Path
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import urllib.request
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ROOT = Path(__file__).resolve().parent.parent
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LOCAL = ROOT / '.local'
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def fetch(url):
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with urllib.request.urlopen(url, timeout=120) as response:
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return response.read()
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def main():
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manifest = json.loads((LOCAL / 'minecraft/26.3/manifest.json').read_text())
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index_info = manifest['assetIndex']
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target = LOCAL / 'horizon-client/26.3'
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index_path = target / 'asset-index.json'
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if not index_path.exists() or hashlib.sha1(index_path.read_bytes()).hexdigest() != index_info['sha1']:
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data = fetch(index_info['url'])
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if hashlib.sha1(data).hexdigest() != index_info['sha1']:
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raise ValueError('asset index checksum mismatch')
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index_path.write_bytes(data)
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objects = json.loads(index_path.read_text())['objects']
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wanted = {name: info for name, info in objects.items()
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if name == 'minecraft/sounds.json' or name.startswith('minecraft/sounds/')}
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def download(item):
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name, info = item
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path = target / 'assets' / name
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if path.exists() and hashlib.sha1(path.read_bytes()).hexdigest() == info['hash']:
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return 0
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h = info['hash']
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data = fetch(f'https://resources.download.minecraft.net/{h[:2]}/{h}')
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if hashlib.sha1(data).hexdigest() != h:
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raise ValueError(f'checksum mismatch for {name}')
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path.parent.mkdir(parents=True, exist_ok=True)
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path.write_bytes(data)
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return len(data)
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total = 0
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with concurrent.futures.ThreadPoolExecutor(16) as pool:
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for size in pool.map(download, wanted.items()):
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total += size
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print(f'Sound assets ready: {len(wanted)} files, {total / 1e6:.1f} MB downloaded')
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if __name__ == '__main__':
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main()
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