added scalafix to rename Cartesian to Semigroupal

core/src/main/scala/cats/syntax/package.scala

@@ -10,7 +10,6 @@ package object syntax {
   object bifunctor extends BifunctorSyntax
   object bifoldable extends BifoldableSyntax
   object bitraverse extends BitraverseSyntax
-  object semigroupal extends SemigroupalSyntax
   object coflatMap extends CoflatMapSyntax
   object eitherK extends EitherKSyntax
   object comonad extends ComonadSyntax
@@ -34,6 +33,7 @@ package object syntax {
   object profunctor extends ProfunctorSyntax
   object reducible extends ReducibleSyntax
   object semigroup extends SemigroupSyntax
+  object semigroupal extends SemigroupalSyntax
   object semigroupk extends SemigroupKSyntax
   object show extends ShowSyntax
   object strong extends StrongSyntax

scalafix/README.md

@@ -50,3 +50,13 @@ sbt scalafix github:typelevel/cats/v1.0.0
 - [ ] foldLeftM is removed from Free, use foldM on Foldable instead, see #1117 for detail.
 
 - [ ] iteratorFoldM was removed from Foldable due to #1716
+
+
+## To test scala fix
+
+```bash
+sbt ;coreJVM/publishLocal;coreFree/publishLocal
+cd scalafix
+sbt test
+
+```

scalafix/input/src/main/scala/fix/v1_0_0/RenameCartesian.scala

@@ -0,0 +1,13 @@
+/*
+rule = "scala:fix.v1_0_0.RenameCartesian"
+ */
+package fix
+package to1_0_0
+
+import cats.Cartesian
+
+object RenameCartesianTests {
+  import cats.syntax.cartesian._
+
+  def prod[F[_]: Cartesian, A, B](fa: F[A], fb: F[B]): F[(A, B)] = Cartesian[F].product(fa, fb)
+}

scalafix/output/src/main/scala/fix/v1_0_0/RenameCartesian.scala

@@ -0,0 +1,10 @@
+package fix
+package to1_0_0
+
+import cats.Semigroupal
+
+object RenameCartesianTests {
+  import cats.syntax.semigroupal._
+
+  def prod[F[_]: Semigroupal, A, B](fa: F[A], fb: F[B]): F[(A, B)] = Semigroupal[F].product(fa, fb)
+}

scalafix/rules/src/main/scala/fix/Cats_v1_0_0.scala

@@ -225,4 +225,19 @@ case class RenameEitherTLiftT(index: SemanticdbIndex)
       "_root_.cats.data.EitherTFunctions.liftT." -> "liftF"
     )
 
-}
+}
+
+// ref: https://github.com/typelevel/cats/pull/1960
+case class RenameCartesian(index: SemanticdbIndex)
+  extends SemanticRule(index, "RenameCartesian") {
+
+  override def fix(ctx: RuleCtx): Patch = {
+    ctx.replaceSymbols(
+      "_root_.cats.Cartesian." -> "_root_.cats.Semigroupal."
+    )+ ctx.tree.collect {
+      case t @ q"import cats.syntax.cartesian._" =>
+        ctx.replaceTree(t, "import cats.syntax.semigroupal._")
+    }.asPatch
+  }
+
+}