zip.py 文件源码

python
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项目:cuckoodroid-2.0 作者: idanr1986 项目源码 文件源码
def _prepare_archive_at_path(filename):
    """ Verifies that there's a readable zip archive at the given path.

    This function returns a new name for the archive (for most cases it's
    the same as the original one; but if an archive named "foo.zip" contains
    a file named "foo" this archive will be renamed to avoid being overwrite.
    """
    # Verify that the archive is actually readable
    try:
        with ZipFile(filename, "r") as archive:
            archive.close()
    except BadZipfile:
        return None
    # Test if zip file contains a file named as itself
    if _is_overwritten(filename):
        log.debug("ZIP file contains a file with the same name, original is \
        going to be overwrite")
        # In this case we just change the file name
        new_zip_path = filename + _random_extension()
        move(filename, new_zip_path)
        filename = new_zip_path
    return filename
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