Remove now unused DefaultBase class

It was useful when Scala CLI was split for native image (with a
lightweight entrypoint when memory was tight on CI, and a fully featured
one). But we got rid of this long ago…

Author: alexarchambault

modules/cli/src/main/scala/scala/cli/ScalaCliCommands.scala

@@ -12,7 +12,7 @@ class ScalaCliCommands(
   isSipScala: Boolean
 ) extends CommandsEntryPoint {
 
-  lazy val actualDefaultCommand: DefaultBase = new Default(help)
+  lazy val actualDefaultCommand = new Default(help)
 
   private def allCommands = Seq[ScalaCommand[_]](
     new About(isSipScala = isSipScala),

modules/cli/src/main/scala/scala/cli/commands/Default.scala

@@ -1,13 +1,43 @@
 package scala.cli.commands
 
+import caseapp._
 import caseapp.core.help.RuntimeCommandsHelp
+import caseapp.core.{Error, RemainingArgs}
 
-import scala.cli.ScalaCliHelp
+import scala.build.internal.Constants
+import scala.cli.{CurrentParams, ScalaCliHelp}
 
-// FIXME scalafmt formats that really weirdly, need to investigate why
-// format: off
-class Default(help: => RuntimeCommandsHelp) extends DefaultBase(
-  help.help(ScalaCliHelp.helpFormat),
-  help.help(ScalaCliHelp.helpFormat, showHidden = true)
-)
-// format: on
+class Default(
+  actualHelp: => RuntimeCommandsHelp
+) extends ScalaCommand[DefaultOptions] {
+
+  private def defaultHelp: String     = actualHelp.help(ScalaCliHelp.helpFormat)
+  private def defaultFullHelp: String = actualHelp.help(ScalaCliHelp.helpFormat, showHidden = true)
+
+  override protected def commandLength = 0
+
+  override def group = "Main"
+  override def sharedOptions(options: DefaultOptions) =
+    Some[scala.cli.commands.SharedOptions](options.runOptions.shared)
+  private[cli] var anyArgs = false
+  override def helpAsked(progName: String, maybeOptions: Either[Error, DefaultOptions]): Nothing = {
+    println(defaultHelp)
+    sys.exit(0)
+  }
+  override def fullHelpAsked(progName: String): Nothing = {
+    println(defaultFullHelp)
+    sys.exit(0)
+  }
+  def run(options: DefaultOptions, args: RemainingArgs): Unit = {
+    CurrentParams.verbosity = options.runOptions.shared.logging.verbosity
+    if (options.version)
+      println(Constants.version)
+    else if (anyArgs)
+      Run.run(
+        options.runOptions,
+        args
+      )
+    else
+      helpAsked(finalHelp.progName, Right(options))
+  }
+}