From 2a5ba9475da587a10c3d19b7883806a4803b4744 Mon Sep 17 00:00:00 2001
From: Dale Wijnand <dale.wijnand@gmail.com>
Date: Thu, 5 Oct 2017 20:21:38 +0100
Subject: [PATCH] Handle Global in Scope#toString

Print "Global" instead of "Zero / Zero / Zero".
---
 main-settings/src/main/scala/sbt/Scope.scala | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/main-settings/src/main/scala/sbt/Scope.scala b/main-settings/src/main/scala/sbt/Scope.scala
index edfeb4826..020d86a31 100644
--- a/main-settings/src/main/scala/sbt/Scope.scala
+++ b/main-settings/src/main/scala/sbt/Scope.scala
@@ -29,9 +29,10 @@ final case class Scope(project: ScopeAxis[Reference],
   def in(config: ConfigKey): Scope = copy(config = Select(config))
   def in(task: AttributeKey[_]): Scope = copy(task = Select(task))
 
-  override def toString: String = {
-    if (extra == This) s"$project / $config / $task"
-    else s"Scope($project, $config, $task, $extra)"
+  override def toString: String = this match {
+    case Scope(Zero, Zero, Zero, Zero) => "Global"
+    case Scope(_, _, _, This)          => s"$project / $config / $task"
+    case _                             => s"Scope($project, $config, $task, $extra)"
   }
 }
 object Scope {