Integrity comparison use case

[patrickwolf]

Would be great if fclones could

• make a snapshot of a folder structure and save it to a txt file
• and then later compare the folder structure to the snapshot text file and list what changed

This would allow for use cases like

• auditing and integrity check
• comparing folder structures after file transfer or backup restore

I know its not the primary use case and that it would require creating a checksum of each file but for many who use fclones to manage a larger folder structure they already have the cache file which might contain a large number of the files already (ie i have 100TB in the cache file right now)

The text file structure would just be
relative file name, hash algo, hash, date/time and potentially inode

[kapitainsky]

There is already tool for this:

https://github.com/jessek/hashdeep

and use Audit mode - https://md5deep.sourceforge.net/start-hashdeep.html

It does exactly what you described