Stryker-net has an option since.ignore-changes-in and I'm trying to understand in which use case it may be useful to ignore non C# files 1.
The doc gives that example of value ['/*Assets.json','/favicon.ico'], but if my last commit changes only Assets.json and if I run stryker with "since": {"target": "<sha1 of my previous commit>"}, then no mutation will be found on this change, with or without this ignore-changes-in option, right?
What am I missing?
1: Sure, if I don't find it useful I could just avoid using it on my personal projects. However I'm responsible for providing stryker in CI for several teams in my company and I'm hence interested in making sure I have a good understanding of the consequences of using (or not) this.
I can think of two cases.
First, it might bring some performance gain (just by reducing the amount of files Stryker will get to), e.g. when your change updates 100 XML localizations of some string.
Second, you might have real code you don't want to run Stryker against. E.g. you have some Obsolete folder with a bunch of projects you don't care about but which automatically updates with some renaming and so on. This might be interchangeable with the
mutateoption, unless you want to have different filters for "normal" and "diff" Stryker executions.