Prefer direct `Either` operations over projections

Proprietary

Finds usages of .left and .right projections on Either. Since Scala 2.13, Either is right-biased so map/flatMap work directly. Use swap to operate on the Left side instead of .left.

org.openrewrite.scala.errorhandling.PreferDirectEitherOps

mod run . --recipe=org.openrewrite.scala.errorhandling.PreferDirectEitherOps

Install it once from Recipe actions, then run it on every repository under the current directory. New to the Moderne CLI? Set it up.

Prefer direct Either operations over projections

Prefer direct `Either` operations over projections