UI for external dependencies that have been edited

[pygy]

We've discussed it in the past and I thought there was already an issue about it, but apparently there isn't...

Flems supports editing foreign dependencies and stores the diff in its state.

It would be nice if

1. the name of files that have been edited were marked in some way (maybe italicize the name and add a *?)
2. there was a way to visualize the diff

(cc. @foucist who also suggested this in gitter)

[porsager]

Yeah, you're probably thinking of #7 .

For starters before the patch view, it would be a great idea just to visualize that dependencies have been tampered with ! 🙂

[pygy]

I searched for diff, not patch :-)