Allow autogenerated projects to have overridden organization.

* Change detection of "default project" to accurately see
  if someone has changed the organization.
* Add a flag to notify downstream consumers that a project
  was autogenerated and not user specified.

Fixes #1315

main/src/main/scala/sbt/Build.scala

@@ -4,7 +4,7 @@
 package sbt
 
 import java.io.File
-import Keys.{ name, organization, thisProject }
+import Keys.{ name, organization, thisProject, autoGeneratedProject }
 import Def.{ ScopedKey, Setting }
 
 // name is more like BuildDefinition, but that is too long
@@ -49,13 +49,13 @@ object Build {
     // TODO - Can we move this somewhere else?  ordering of settings is causing this to get borked.
     // if the user has overridden the name, use the normal organization that is derived from the name.
     organization := {
-      val overridden = thisProject.value.id == name.value
+      def isDefault(o: String) = thisProject.value.id == o
       organization.?.value match {
-        case Some(o) if !overridden => o
+        case Some(o) if !isDefault(o) => o
-        case _                      => "default"
+        case _                        => "default"
       }
-      //(thisProject, organization, name) { (p, o, n) => if(p.id == n) "default" else o }
+    },
-    }
+    autoGeneratedProject := true
   )
   def defaultAggregatedProject(id: String, base: File, agg: Seq[ProjectRef]): Project =
     defaultProject(id, base).aggregate(agg: _*)

main/src/main/scala/sbt/Keys.scala

@@ -36,6 +36,7 @@ object Keys {
   val sLog = SettingKey[Logger]("setting-logger", "Logger usable by settings during project loading.", CSetting)
 
   // Project keys
+  val autoGeneratedProject = SettingKey[Boolean]("autogeneratedProject", "If it exists, represents that the project (and name) were automaticlaly craeted, rather than user specified.", DSetting)
   val projectCommand = AttributeKey[Boolean]("project-command", "Marks Commands that were registered for the current Project.", Invisible)
   val sessionSettings = AttributeKey[SessionSettings]("session-settings", "Tracks current build, project, and setting modifications.", DSetting)
   val stateBuildStructure = AttributeKey[BuildStructure]("build-structure", "Data structure containing all information about the build definition.", BSetting)

sbt/src/sbt-test/project/auto-plugins/build.sbt

@@ -18,7 +18,10 @@ lazy val projF = project
 disablePlugins(plugins.IvyPlugin)
 
 check := {
-    // TODO - this will pass when the raw disablePlugin works.
+    // Ensure organization on root is overridable.
+    val rorg = (organization).value // Should be None
+    same(rorg, "override", "organization")
+    // this will pass when the raw disablePlugin works.
     val dversion = (projectID in projD).?.value // Should be None
     same(dversion, None, "projectID in projD")
     val rversion = projectID.?.value // Should be None
@@ -44,6 +47,8 @@ check := {
 	same(qValue, Some(" Q R"), "del in projC in q")
 	val optInValue = (del in projE in q).value
 	same(optInValue, " Q S R", "del in projE in q")
+	val overrideOrgValue = (organization in projE).value
+	same(overrideOrgValue, "S", "organization in projE")
 }
 
 keyTest := "foo"

sbt/src/sbt-test/project/auto-plugins/project/Q.scala

@@ -1,7 +1,7 @@
 package sbttest // you need package http://stackoverflow.com/questions/9822008/
 
 	import sbt._
-	import sbt.Keys.{name, resolvedScoped}
+	import sbt.Keys.{name, resolvedScoped, organization	}
 	import java.util.concurrent.atomic.{AtomicInteger => AInt}
 
 object Imports
@@ -19,6 +19,13 @@ object Imports
 	lazy val check = taskKey[Unit]("Verifies settings are as they should be.")
 }
 
+object OrgPlugin extends AutoPlugin {
+	override def trigger = allRequirements
+	override def projectSettings = Seq(
+      organization := "override"
+	)
+}
+
 object X extends AutoPlugin {
 	val autoImport = Imports
 }
@@ -84,6 +91,7 @@ object S extends AutoPlugin
 	override def trigger = noTrigger
 
 	override def projectSettings = Seq(
-		del in q += " S"
+		del in q += " S",
+		organization := "S"
 	)
 }

sbt/src/sbt-test/project/auto-plugins/test

@@ -1,2 +1,3 @@
 > plugins
+> inspect organization
 > check