Secure Tar

Secure Tarfile library

It's a streaming wrapper around python tarfile and allow secure handling files and support encryption.

with SecureTarFile("test.tar", "w") as tar_file:
        atomic_contents_add(
            tar_file,
            temp_orig,
            excludes=[],
            arcname=".",
        )

with SecureTarFile("test.tar", "w", b"AES128_KEY_SIZE") as tar_file:
        atomic_contents_add(
            tar_file,
            temp_orig,
            excludes=[],
            arcname=".",
        )

A common pattern is to create an outer uncompressed tarfile that contains a variety of inner tar files. This can be accomplished without writing out multiple files with the following pattern.

outer_secure_tar_file = SecureTarFile("pkg.tar", "w", gzip=False)
with outer_secure_tar_file as outer_tar_file:
    with outer_secure_tar_file.create_inner_tar(
        "./backup1.tar.gz", gzip=True
    ) as inner_tar_file:
        atomic_contents_add(
            inner_tar_file,
            path_1,
            excludes=[],
            arcname=".",
        )

    with outer_secure_tar_file.create_inner_tar(
        "./backup2.tar.gz", gzip=True
    ) as inner_tar_file:
        atomic_contents_add(
            inner_tar_file,
            path_2,
            excludes=[],
            arcname=".",
        )