from __future__ import annotations

import hashlib


BLOCK_SIZE = 1024 * 64


def sha256_bytes(data: bytes) -> str:
    digest = hashlib.sha256()
    digest.update(data)
    return digest.hexdigest()


def sha256_file(path: str) -> str:
    digest = hashlib.sha256()
    with open(path, "rb") as f:
        while True:
            block = f.read(BLOCK_SIZE)
            if not block:
                break
            digest.update(block)
    return digest.hexdigest()