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How to use match_ext_options method in autotest

Best Python code snippet using autotest_python

fsinfo.py

Source:fsinfo.py

...236    for feature in current_feature:237        if feature not in needed_feature:238            return False239    return True240def match_ext_options(fs_type, dev, needed_options):241    """Compare the current ext* filesystem tunables with needed ones."""242    # mkfs.ext* will load default options from /etc/mke2fs.conf243    conf_opt = parse_mke2fs_conf(fs_type)244    # We need to convert the conf options to mkfs options.245    conf_mkfs_opt = convert_conf_opt(conf_opt)246    # Breaks user mkfs option string to dictionary.247    needed_opt_dict = opt_string2dict(needed_options)248    # Removes ignored options.249    ignored_option = ['-c', '-q', '-E', '-F']250    for opt in ignored_option:251        if opt in needed_opt_dict:252            del needed_opt_dict[opt]253   # User options override config options.254    needed_opt = conf_mkfs_opt255    for key, value in needed_opt_dict.iteritems():256        if key == '-N' or key == '-T':257            raise Exception('-N/T is not allowed.')258        elif key == '-O':259            needed_opt[key] = merge_ext_features(needed_opt[key], value)260        else:261            needed_opt[key] = value262    # '-j' option will add 'has_journal' feature.263    if '-j' in needed_opt and 'has_journal' not in needed_opt['-O']:264        needed_opt['-O'].append('has_journal')265    # 'extents' will be shown as 'extent' in the outcome of tune2fs266    if 'extents' in needed_opt['-O']:267        needed_opt['-O'].append('extent')268        needed_opt['-O'].remove('extents')269    # large_file is a byproduct of resize_inode.270    if 'large_file' not in needed_opt['-O'] and (271        'resize_inode' in needed_opt['-O']):272        needed_opt['-O'].append('large_file')273    current_opt = {}274    tune2fs_dict = ext_tunables(dev)275    ext_mkfs_options(tune2fs_dict, current_opt)276    # Does the match277    for key, value in needed_opt.iteritems():278        if key == '-O':279            if not compare_features(value, current_opt[key].split(',')):280                return False281        elif key not in current_opt or value != current_opt[key]:282            return False283    return True284def match_xfs_options(dev, needed_options):285    """Compare the current ext* filesystem tunables with needed ones."""286    tmp_mount_dir = tempfile.mkdtemp()287    cmd = 'mount %s %s' % (dev, tmp_mount_dir)288    utils.system_output(cmd)289    xfs_growfs = os.path.join(os.environ['AUTODIR'], 'tools', 'xfs_growfs')290    cmd = '%s -n %s' % (xfs_growfs, dev)291    try:292        current_option = utils.system_output(cmd)293    finally:294        # Clean.295        cmd = 'umount %s' % dev296        utils.system_output(cmd, ignore_status=True)297        os.rmdir(tmp_mount_dir)298    # '-N' has the same effect as '-n' in mkfs.ext*. Man mkfs.xfs for details.299    cmd = 'mkfs.xfs %s -N -f %s' % (needed_options, dev)300    needed_out = utils.system_output(cmd)301    # 'mkfs.xfs -N' produces slightly different result than 'xfs_growfs -n'302    needed_out = re.sub('internal log', 'internal    ', needed_out)303    if current_option == needed_out:304        return True305    else:306        return False307def match_mkfs_option(fs_type, dev, needed_options):308    """Compare the current filesystem tunables with needed ones."""309    if fs_type.startswith('ext'):310        ret = match_ext_options(fs_type, dev, needed_options)311    elif fs_type == 'xfs':312        ret = match_xfs_options(dev, needed_options)313    else:314        ret = False...

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