Add "if relevant" versions of mima/publish commands

kernel/src/main/scala/org/typelevel/sbt/TypelevelKernelPlugin.scala

@@ -27,6 +27,12 @@ object TypelevelKernelPlugin extends AutoPlugin {
   object autoImport {
     lazy val tlIsScala3 = settingKey[Boolean]("True if building with Scala 3")
 
+    lazy val tlPublishIfRelevant = taskKey[Unit](
+      "A wrapper around the `publish` task which checks to ensure the current scalaVersion is in crossScalaVersions")
+
+    lazy val tlPublishLocalIfRelevant = taskKey[Unit](
+      "A wrapper around the `publishLocal` task which checks to ensure the current scalaVersion is in crossScalaVersions")
+
     def tlReplaceCommandAlias(name: String, contents: String): Seq[Setting[State => State]] =
       Seq(GlobalScope / onLoad ~= { (f: State => State) =>
         f andThen { s: State =>
@@ -42,8 +48,28 @@ object TypelevelKernelPlugin extends AutoPlugin {
   )
 
   override def buildSettings =
-    addCommandAlias("tlReleaseLocal", mkCommand(List("reload", "project /", "+publishLocal")))
+    addCommandAlias(
+      "tlReleaseLocal",
+      mkCommand(List("reload", "project /", "+tlPublishLocalIfRelevant")))
+
+  override def projectSettings = Seq(
+    tlPublishIfRelevant := filterTaskWhereRelevant(publish).value,
+    tlPublishLocalIfRelevant := filterTaskWhereRelevant(publishLocal).value
+  )
 
   private[sbt] def mkCommand(commands: List[String]): String = commands.mkString("; ", "; ", "")
 
+  private[sbt] def filterTaskWhereRelevant(delegate: TaskKey[Unit]) =
+    Def.taskDyn {
+      val cross = crossScalaVersions.value
+      val ver = (ThisBuild / scalaVersion).value
+
+      if (cross.contains(ver))
+        Def.task(delegate.value)
+      else {
+        val msg = s"skipping `${delegate.key.label}` in ${name.value}: $ver is not in $cross"
+        Def.task(streams.value.log.info(msg))
+      }
+    }
+
 }

sonatype/src/main/scala/org/typelevel/sbt/TypelevelSonatypePlugin.scala

@@ -19,7 +19,7 @@ package org.typelevel.sbt
 import sbt._, Keys._
 import com.typesafe.tools.mima.plugin.MimaPlugin
 import xerial.sbt.Sonatype, Sonatype.autoImport._
-import TypelevelKernelPlugin.mkCommand
+import TypelevelKernelPlugin._
 
 object TypelevelSonatypePlugin extends AutoPlugin {
 
@@ -30,9 +30,13 @@ object TypelevelSonatypePlugin extends AutoPlugin {
   object autoImport {
     lazy val tlSonatypeUseLegacyHost =
       settingKey[Boolean]("Publish to oss.sonatype.org instead of s01 (default: true)")
+
+    lazy val tlMimaReportBinaryIssuesIfRelevant = taskKey[Unit](
+      "A wrapper around the `mimaReportBinaryIssues` task which checks to ensure the current scalaVersion is in crossScalaVersions")
   }
 
   import autoImport._
+  import MimaPlugin.autoImport._
 
   override def buildSettings =
     Seq(tlSonatypeUseLegacyHost := true) ++
@@ -42,8 +46,8 @@ object TypelevelSonatypePlugin extends AutoPlugin {
           List(
             "reload",
             "project /",
-            "+mimaReportBinaryIssues",
-            "+publish",
+            "+tlMimaReportBinaryIssuesIfRelevant",
+            "+tlPublishIfRelevant",
             "tlSonatypeBundleReleaseIfRelevant"))
       )
 
@@ -57,7 +61,8 @@ object TypelevelSonatypePlugin extends AutoPlugin {
         "oss.sonatype.org"
       else
         "s01.oss.sonatype.org"
-    }
+    },
+    tlMimaReportBinaryIssuesIfRelevant := filterTaskWhereRelevant(mimaReportBinaryIssues).value
   )
 
   private def sonatypeBundleReleaseIfRelevant: Command =