best practice for user profile modification

[dieterdm]

Hello,

i am working on several modules for setting up a development workstation.

These modules sometimes need to modify the user profile by adding variables or modifying existing variables like PATH.

What would be the best practice for going about this?

Maybe have a separate module for manipulating the user profile?

But this module then needs to be very robust, so the profile is not ruined or garbled after subsequent runs.

Or just have one user profile erb template and have that provisioned ?

But this way, all your data is assembled in one file but i find this not really a good way of doing it because your data is not module-bound anymore..

Thanks in advance.