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Kovid Goyal
25 lines
687 B
Python
25 lines
687 B
Python
#!/usr/bin/env python
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# License: GPLv3 Copyright: 2026, Kovid Goyal <kovid at kovidgoyal.net>
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import hashlib
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import hmac
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from contextlib import suppress
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from functools import lru_cache
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from kitty.constants import is_macos
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@lru_cache(maxsize=8)
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def machine_id(salt: str = '') -> str:
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mid = b''
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if is_macos:
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from kitty.fast_data_types import cocoa_get_machine_id
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mid = cocoa_get_machine_id().rstrip().encode()
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else:
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with suppress(OSError), open('/etc/machine-id', 'rb') as f:
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mid = f.read().rstrip()
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if not salt:
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return mid.decode()
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hmac_obj = hmac.new(salt.encode(), mid, hashlib.sha256)
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return hmac_obj.hexdigest()
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