Make sure your data is still intact.
A simple utility, mostly geared towards enabling you to notice when cold backup of data needs to be re-created due to failing storage or similar issues. It keeps a simple text file index.txt listing hashes of all files in your archive.
It assumes that you have a hot version of a file archive (on your pc maybe), and a cold version of the exact same archive (on a removable storage maybe), and that you occasionally sync and verify them. It uses non-cryptographic hash to notice any file corruption, and does not protect against malicious interference.
Depends on Python 3.8+ and some pip libraries.
pip install -r requirements.txt
The entire index must fit in memory, but files are read chunk-by-chunk.
dintact check <cold_directory>
--- or ---
dintact sync <hot_directory> <cold_directory>
dintact respects any .gitignore files it finds, and does not back up files matched by these.
python -m unittest discover test