Simplify build workflow by caching value hashes

[deltamarnix]

Kind of request

Changing existing functionality

Enhancement Description

The course contains multiple steps to update the model. First, I build a model, and then I update parts of the model with separate .ini files. So I explicitly tell HydroMT which parts to update in my model. This reduces the reproducibility of the model and I think there is a solution for this.

Instead of multiple ini files, I would like to see only a single build.ini file. This file contains all the information. When hydromt build is called, it will create the model as expected, but it will also create a file that will contain per section a hash of all the information that was used to create the model. Then, when you make a small change in build.ini, call hydromt build again and hydromt will check the file with hashes to see if the hashes are still equal. If there is a slight change, it means that this section requires updating.

This would mean that you only need a single build.ini file, and that hydromt is smart enough to figure out which parts to update and which are still valid.

Use case

No response

Additional Context

No response