Merge pull request #3671 from miklos-martin/1.x

Add nameOption to the Command trait

main-command/src/main/scala/sbt/Command.scala

@@ -25,6 +25,11 @@ sealed trait Command {
 
   def tags: AttributeMap
   def tag[T](key: AttributeKey[T], value: T): Command
+
+  def nameOption: Option[String] = this match {
+    case sc: SimpleCommand => Some(sc.name)
+    case _                 => None
+  }
 }
 
 private[sbt] final class SimpleCommand(

sbt/src/sbt-test/actions/command-name/build.sbt

@@ -0,0 +1,5 @@
+val command = Command.command("noop") { s => s }
+
+TaskKey[Unit]("check") := {
+  assert(command.nameOption == Some("noop"), """command.commandName should be "noop"""")
+}

sbt/src/sbt-test/actions/command-name/test

@@ -0,0 +1 @@
+> check