Port to Scala 2.13 (#133)

Author: Atry

.github/workflows/scala.yml

@@ -15,10 +15,17 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        scala:
-          - 2.10.7
-          - 2.11.12
-          - 2.12.11
+        include:
+          - scala: 2.11.12
+            sbt-args: --addPluginSbtFile=project/plugins.sbt.scala-js.1.x
+          - scala: 2.12.11
+            sbt-args: --addPluginSbtFile=project/plugins.sbt.scala-js.1.x
+          - scala: 2.13.4
+            sbt-args: --addPluginSbtFile=project/plugins.sbt.scala-js.1.x
+          - scala: 2.10.7
+          - scala: 2.11.12
+          - scala: 2.12.11
+          - scala: 2.13.4
 
     steps:
       - uses: actions/checkout@v3

build.sbt

@@ -9,7 +9,8 @@ fork in Global in compile := true
 
 description in ThisBuild := "A collection of Scala language extension for specific domains."
 
-lazy val each = crossProject.crossType(CrossType.Pure)
+lazy val each = sbtcrossproject.CrossPlugin.autoImport.crossProject
+  .crossType(sbtcrossproject.CrossPlugin.autoImport.CrossType.Pure)
 
 lazy val eachJVM = each.jvm
 

each/build.sbt.shared

@@ -16,11 +16,25 @@ libraryDependencies ++= {
   }
 }
 
-addCompilerPlugin("org.scalamacros" % "paradise" % "2.1.1" cross CrossVersion.full)
+libraryDependencies ++= PartialFunction.condOpt(VersionNumber(scalaVersion.value).matchesSemVer(SemanticSelector("<2.13"))) {
+  case true =>
+    compilerPlugin("org.scalamacros" % "paradise" % "2.1.1" cross CrossVersion.full)
+}
+
+scalacOptions ++= PartialFunction.condOpt(scalaBinaryVersion.value) {
+  case "2.13" =>
+    "-Ymacro-annotations"
+}
 
 libraryDependencies += "org.scala-lang" % "scala-compiler" % scalaVersion.value % Provided
 
-libraryDependencies += "com.thoughtworks.sde" %%% "core" % "3.3.2"
+libraryDependencies += {
+  if (scalaBinaryVersion.value == "2.10") {
+    "com.thoughtworks.sde" %%% "core" % "3.3.2"
+  } else {
+    "com.thoughtworks.sde" %%% "core" % "3.3.4"
+  }
+}
 
 libraryDependencies += "com.thoughtworks.sde" %%% "comprehension-monad" % "3.3.2"
 

each/src/main/scala-2.13/com/thoughtworks/each/macrocompat.scala

@@ -0,0 +1,7 @@
+package com.thoughtworks.each
+
+import scala.annotation.StaticAnnotation
+
+private[each] object macrocompat {
+  class bundle extends StaticAnnotation
+}

each/src/test/scala/com/thoughtworks/each/MonadicTest.scala

@@ -318,7 +318,8 @@ class MonadicTest {
       } catch {
         case e: Exception => {
           count += 1
-          100
+          // FIXME: compile time error on Scala 2.13 if removing `: Int`
+          100: Int
         }
       } finally {
         count += 1

project/plugins.sbt

@@ -4,7 +4,7 @@ addSbtPlugin(
 
 addSbtPlugin("com.thoughtworks.sbt-scala-js-map" % "sbt-scala-js-map" % "4.0.0")
 
-addSbtPlugin("org.scala-js" % "sbt-scalajs" % "0.6.32")
+addSbtPlugin("org.scala-js" % "sbt-scalajs" % "0.6.33")
 
 addSbtPlugin("org.xerial.sbt" % "sbt-sonatype" % "3.9.17")
 
@@ -15,3 +15,5 @@ addSbtPlugin("com.github.sbt" % "sbt-pgp" % "2.2.1")
 addSbtPlugin("org.lyranthe.sbt" % "partial-unification" % "1.1.2")
 
 addSbtPlugin("com.thoughtworks.example" % "sbt-example" % "9.2.1")
+
+addSbtPlugin("org.portable-scala" % "sbt-scalajs-crossproject" % "1.2.0")

project/plugins.sbt.scala-js.1.x

@@ -0,0 +1,22 @@
+// An optional sbt file to replace Scala.js 1.0 with 0.6
+dependencyOverrides += Defaults.sbtPluginExtra(
+  "org.scala-js" % "sbt-scalajs" % "1.0.1",
+  sbtBinaryVersion.value,
+  scalaBinaryVersion.value,
+)
+
+Compile / sourceGenerators += Def.task {
+  val file = (Compile / sourceManaged).value / "SkipPublishForNonScalaJSProjects.scala"
+  IO.write(file, """
+    import scalajscrossproject.ScalaJSCrossPlugin.autoImport._
+    import sbtcrossproject.CrossPlugin.autoImport._
+    import sbt._, Keys._
+    object SkipPublishForNonScalaJSProjects extends AutoPlugin {
+      override def trigger = allRequirements
+      override def projectSettings = Seq(
+        publish / skip := crossProjectPlatform.value != JSPlatform
+      )
+    }
+  """)
+  Seq(file)
+}.taskValue