build_tools/blob.py

# Copyright 2021 Google, Inc.
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import array
import functools

def bytesToCppArray(code, symbol, data):
    '''
    Output an array of bytes to a code formatter as a c++ array declaration.
    '''
    code('const std::uint8_t ${symbol}[] = {')
    code.indent()
    step = 16
    for i in range(0, len(data), step):
        x = array.array('B', data[i:i+step])
        strs = map(lambda i: f'{i},', x)
        code(functools.reduce(lambda x, y: x + y, strs))
    code.dedent()
    code('};')