linux-kernel-module-cheat/copy-overlay

#!/usr/bin/env python3

import distutils.dir_util
import os
import shutil

import common
from shell_helpers import LF

class Main(common.BuildCliFunction):
    def __init__(self):
        super().__init__(
            description='''\
https://cirosantilli.com/linux-kernel-module-cheat#rootfs-overlay
''')

    def build(self):
        self.sh.copy_dir_if_update(
            srcdir=self.env['rootfs_overlay_dir'],
            destdir=self.env['out_rootfs_overlay_dir'],
        )

if __name__ == '__main__':
    Main().cli()