56 lines
2.4 KiB
Python
56 lines
2.4 KiB
Python
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"""Archive the installed, unmodified OFL font with its embedded legal metadata."""
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import hashlib
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import json
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import shutil
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import struct
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from pathlib import Path
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ROOT = Path(__file__).resolve().parents[2]
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SOURCE = Path('C:/Windows/Fonts/NotoSansSC-VF.ttf')
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LICENSE = Path('D:/vibeCoding/blender/Blender 4.5/license/spdx/OFL-1.1.txt')
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def main():
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data = SOURCE.read_bytes()
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tables = {}
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for i in range(struct.unpack_from('>H', data, 4)[0]):
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tag, _, offset, _ = struct.unpack_from('>4sIII', data, 12 + 16 * i)
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tables[tag] = offset
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start = tables[b'name']
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_, count, strings = struct.unpack_from('>HHH', data, start)
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names = {}
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for i in range(count):
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platform, _, _, name, size, offset = struct.unpack_from('>6H', data, start + 6 + 12 * i)
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if platform == 3:
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names[str(name)] = data[start + strings + offset:start + strings + offset + size].decode('utf-16-be')
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assert 'SIL Open Font License, Version 1.1' in names['13']
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archive = ROOT / 'SourceAssets/ThirdParty/Adobe/NotoSansSC'
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imported = ROOT / 'Assets/ThirdParty/Adobe/NotoSansSC'
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legal = ROOT / 'Docs/Production/Licenses/Adobe/NotoSansSC'
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for target in (archive, imported, legal):
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target.mkdir(parents=True, exist_ok=True)
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for target in (archive, imported):
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shutil.copyfile(SOURCE, target / SOURCE.name)
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copyright_text = names['0']
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license_text = copyright_text + '\n\n' + LICENSE.read_text(encoding='utf-8')
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for target in (archive, imported, legal):
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(target / 'OFL.txt').write_text(license_text, encoding='utf-8')
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provenance = {
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'archived': '2026-11-12',
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'source': str(SOURCE),
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'canonicalProject': 'https://github.com/notofonts/noto-cjk',
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'canonicalLicense': 'https://openfontlicense.org/open-font-license-official-text/',
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'retrieval': 'Locally installed unmodified font. Public HTTPS retrieval failed; license identified in embedded name records 13/14.',
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'sha256': hashlib.sha256(data).hexdigest(),
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'bytes': len(data),
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'embeddedNames': names,
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'fullLicenseSource': str(LICENSE),
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'modifications': 'None to source font; Unity generates a project font atlas.'
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}
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(legal / 'Provenance.json').write_text(json.dumps(provenance, ensure_ascii=False, indent=2), encoding='utf-8')
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print(json.dumps({k: provenance[k] for k in ('sha256', 'bytes')}, indent=2))
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if __name__ == '__main__':
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main()
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