First pass at simplifying test suite definition & running

Added a `TaskModule` subclass of `Module`, which delegates to a `self` task that you can run directly from bash

Fixed `GenIdea` to fix reversing of module path in generating module name

2 files changed, 16 insertions, 1 deletions

diff --git a/core/src/main/scala/mill/Main.scala b/core/src/main/scala/mill/Main.scala
index 6f1d3bd3..7b48c9c7 100644
--- a/core/src/main/scala/mill/Main.scala
+++ b/core/src/main/scala/mill/Main.scala
@@ -10,6 +10,7 @@ import mill.eval.{Evaluator, Result}
 import mill.util.OSet
 import ammonite.main.Scripts.pathScoptRead
 import ammonite.repl.Repl
+import mill.define.Task.TaskModule
 
 object Main {
 
@@ -52,13 +53,23 @@ object Main {
               case Left(last) :: Nil =>
                 def target: Option[Task[Any]] =
                   hierarchy.targets.find(_.label == last).map(_.run(hierarchy.node(obj, crossSelectors)))
+
+                def targetModule: Seq[Task[Any]] = for{
+                  (label, child) <- hierarchy.children
+                  if label == last
+                  node <- child.node(obj, crossSelectors) match{
+                    case x: TaskModule => Some(x)
+                    case _ => None
+                  }
+                } yield node.self
+
                 def command: Option[Task[Any]] = hierarchy.commands.find(_.name == last).flatMap(
                   _.invoke(hierarchy.node(obj, crossSelectors), ammonite.main.Scripts.groupArgs(rest.toList)) match{
                     case Router.Result.Success(v) => Some(v)
                     case _ => None
                   }
                 )
-                target orElse command
+                target orElse command orElse targetModule.headOption
               case head :: tail =>
                 head match{
                   case Left(singleLabel) =>
diff --git a/core/src/main/scala/mill/define/Task.scala b/core/src/main/scala/mill/define/Task.scala
index 5aa97eff..91eb3793 100644
--- a/core/src/main/scala/mill/define/Task.scala
+++ b/core/src/main/scala/mill/define/Task.scala
@@ -145,6 +145,10 @@ object Task {
   trait Module extends mill.define.Cacher[Target]{
     def wrapCached[T](t: Target[T], enclosing: String): Target[T] = t
   }
+  trait TaskModule extends Module {
+    def self(): Task[_]
+  }
+
   class Task0[T](t: T) extends Task[T]{
     lazy val t0 = t
     val inputs = Nil