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# Utilities for python-based QEMU tests
#
# Copyright 2024 Red Hat, Inc.
#
# Authors:
# Thomas Huth <thuth@redhat.com>
#
# This work is licensed under the terms of the GNU GPL, version 2 or
# later. See the COPYING file in the top-level directory.
import os
from .archive import tar_extract as archive_extract
from .archive import cpio_extract
from .uncompress import gzip_uncompress
from .uncompress import lzma_uncompress
"""
Round up to next power of 2
"""
def pow2ceil(x):
return 1 if x == 0 else 2**(x - 1).bit_length()
def file_truncate(path, size):
if size != os.path.getsize(path):
with open(path, 'ab+') as fd:
fd.truncate(size)
"""
Expand file size to next power of 2
"""
def image_pow2ceil_expand(path):
size = os.path.getsize(path)
size_aligned = pow2ceil(size)
if size != size_aligned:
with open(path, 'ab+') as fd:
fd.truncate(size_aligned)
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