Auditing of code execution?

[Troels Arvin]

Hello,

I'm considering using Jupyterhub as a way to allow a set of users to run code in an audited way: User X ran Y at time Z.

Is there a way to make Jupyterhub do that kind of auditing?

And if so: Is there a way to make Jupyterhub somehow save a copy of the scripts (Python/SAS/R) every time they are changed?
The idea is: It's nice to know that user X ran Y at time Z, but it's somewhat useless, unless we know Y contained at the time?

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Regards,
Troels Arvin