Force-upgrade sbt-scalajs to scalaJSVersion in community builds that need it.

Currently, this is only for cats-effect-2.

Author: sjrd

community-build/src/scala/dotty/communitybuild/projects.scala

@@ -15,6 +15,9 @@ lazy val sbtPluginFilePath: String =
   new File(sys.props("user.home") + "/.sbt/1.0/plugins").mkdirs()
   communitybuildDir.resolve("sbt-dotty-sbt").toAbsolutePath().toString()
 
+lazy val sbtScalaJSPluginFilePath: String =
+  communitybuildDir.resolve("sbt-scalajs-sbt").toAbsolutePath().toString()
+
 def log(msg: String) = println(Console.GREEN + msg + Console.RESET)
 
 /** Executes shell command, returns false in case of error. */
@@ -65,6 +68,7 @@ final case class SbtCommunityProject(
     project: String,
     sbtTestCommand: String,
     extraSbtArgs: List[String] = Nil,
+    forceUpgradeSbtScalajsPlugin: Boolean = false,
     dependencies: List[CommunityProject] = Nil,
     sbtPublishCommand: String = null) extends CommunityProject:
   override val binaryName: String = "sbt"
@@ -77,10 +81,14 @@ final case class SbtCommunityProject(
     val sbtProps = Option(System.getProperty("sbt.ivy.home")) match
       case Some(ivyHome) => List(s"-Dsbt.ivy.home=$ivyHome")
       case _ => Nil
+    val scalaJSPluginArgs =
+      if (forceUpgradeSbtScalajsPlugin) List(s"--addPluginSbtFile=$sbtScalaJSPluginFilePath")
+      else Nil
     extraSbtArgs ++ sbtProps ++ List(
       "-sbt-version", "1.3.8",
        "-Dsbt.supershell=false",
-      s"--addPluginSbtFile=$sbtPluginFilePath")
+      s"--addPluginSbtFile=$sbtPluginFilePath"
+    ) ++ scalaJSPluginArgs
 
 object projects:
   lazy val utest = MillCommunityProject(
@@ -310,7 +318,8 @@ object projects:
 
   lazy val catsEffect2 = SbtCommunityProject(
     project        = "cats-effect-2",
-    sbtTestCommand = "test"
+    sbtTestCommand = "test",
+    forceUpgradeSbtScalajsPlugin = true
   )
 
   lazy val catsEffect3 = SbtCommunityProject(

project/Build.scala

@@ -1204,6 +1204,9 @@ object Build {
           s"""updateOptions in Global ~= (_.withLatestSnapshots(false))
              |addSbtPlugin("ch.epfl.lamp" % "sbt-dotty" % "$sbtDottyVersion")""".stripMargin
         IO.write(baseDirectory.value / "sbt-dotty-sbt", pluginText)
+        val scalaJSPluginText =
+          s"""addSbtPlugin("org.scala-js" % "sbt-scalajs" % "$scalaJSVersion")\n"""
+        IO.write(baseDirectory.value / "sbt-scalajs-sbt", scalaJSPluginText)
         IO.write(baseDirectory.value / "scala3-bootstrapped.version", dottyVersion)
       },
       testOptions in Test += Tests.Argument(