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4349ba5977
This function is useful for other tests. Move it into common code. Signed-off-by: Simon Glass <sjg@chromium.org>
54 lines
1.7 KiB
Python
54 lines
1.7 KiB
Python
# SPDX-License-Identifier: GPL-2.0+
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#
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# Helper functions for dealing with filesystems
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#
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# Copyright (c) 2018, Linaro Limited
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# Author: Takahiro Akashi <takahiro.akashi@linaro.org>
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import re
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import os
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from subprocess import call, check_call, check_output, CalledProcessError
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def mk_fs(config, fs_type, size, prefix):
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"""Create a file system volume
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Args:
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fs_type (str): File system type, e.g. 'ext4'
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size (int): Size of file system in bytes
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prefix (str): Prefix string of volume's file name
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"""
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fs_img = '%s.%s.img' % (prefix, fs_type)
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fs_img = config.persistent_data_dir + '/' + fs_img
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if fs_type == 'fat16':
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mkfs_opt = '-F 16'
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elif fs_type == 'fat32':
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mkfs_opt = '-F 32'
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else:
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mkfs_opt = ''
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if re.match('fat', fs_type):
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fs_lnxtype = 'vfat'
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else:
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fs_lnxtype = fs_type
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count = (size + 1048576 - 1) / 1048576
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# Some distributions do not add /sbin to the default PATH, where mkfs lives
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if '/sbin' not in os.environ["PATH"].split(os.pathsep):
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os.environ["PATH"] += os.pathsep + '/sbin'
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try:
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check_call('rm -f %s' % fs_img, shell=True)
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check_call('dd if=/dev/zero of=%s bs=1M count=%d'
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% (fs_img, count), shell=True)
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check_call('mkfs.%s %s %s'
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% (fs_lnxtype, mkfs_opt, fs_img), shell=True)
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if fs_type == 'ext4':
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sb_content = check_output('tune2fs -l %s' % fs_img, shell=True).decode()
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if 'metadata_csum' in sb_content:
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check_call('tune2fs -O ^metadata_csum %s' % fs_img, shell=True)
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return fs_img
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except CalledProcessError:
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call('rm -f %s' % fs_img, shell=True)
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raise
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