Task to format only changed files

[Hiosdra]

Hi, in my team, I have a case when we have run checkScalafmt before every test task (in CI too). For some services we upgrade scalafmt without running scalafmtAll and with option to check only changed code, because of active development in these services(and wanting to not have conflicts). I wish a task with formatting only changed file will be added to Scalafmt. Would it be possible to add it?

I even done it and created a PR to this repo 😉 #36
Could you @alenkacz look into this?

[SelaOHB]

Hi, what did you do in the end?

[Hiosdra]

We did upgrade to scalafmt during phase of slower development xx
And now we are migrating to using Kotlin