We would like to enforce a global minimum threshold in addition to an individual file minimum. Consider the scenario:

As the codebase grows in size, individual files contribute less and less to the global coverage number. An urgent issue is identified and a developer wants to immediately commit a fix. It is tempting to push the fix out without thorough testing. If the fix is concentrated in a small number of new files (for example), they may pass undetected through the global threshold with 0% coverage.

It would be nice if we could configure a minimum threshold on an individual file basis. In our case, this would likely be less strict than the global but something substantially larger than 0.

I can assemble a pull request if other folks are open to this feature.