::or your own extractors
~compileto see errors while I'm coding. But once in a while, a big, large refactoring comes along with no real way to do it incrementally. Now, every
compilerun takes forever, since the whole project needs to be recompiled, and I'm drowning in error messages. Maybe there is a way to tell sbt "Just compile file X.scala and all its dependencies", so I can go file by file?