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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 gzip
import lzma
import os
import shutil
import subprocess
import tarfile
def archive_extract(archive, dest_dir, member=None):
with tarfile.open(archive) as tf:
if hasattr(tarfile, 'data_filter'):
tf.extraction_filter = getattr(tarfile, 'data_filter',
(lambda member, path: member))
if member:
tf.extract(member=member, path=dest_dir)
else:
tf.extractall(path=dest_dir)
def gzip_uncompress(gz_path, output_path):
if os.path.exists(output_path):
return
with gzip.open(gz_path, 'rb') as gz_in:
try:
with open(output_path, 'wb') as raw_out:
shutil.copyfileobj(gz_in, raw_out)
except:
os.remove(output_path)
raise
def lzma_uncompress(xz_path, output_path):
if os.path.exists(output_path):
return
with lzma.open(xz_path, 'rb') as lzma_in:
try:
with open(output_path, 'wb') as raw_out:
shutil.copyfileobj(lzma_in, raw_out)
except:
os.remove(output_path)
raise
def cpio_extract(cpio_handle, output_path):
cwd = os.getcwd()
os.chdir(output_path)
subprocess.run(['cpio', '-i'],
input=cpio_handle.read(),
stderr=subprocess.DEVNULL)
os.chdir(cwd)
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