idempotent change propagation

using lastModified instead of a non-idempotent needsUpdate flag
this fixes a bug where dependees would not be rebuilt if cbt exited
or was killed after dependencies were already rebuilt.

1 files changed, 3 insertions, 3 deletions

diff --git a/stage2/Lib.scala b/stage2/Lib.scala
index c570ca3..a76e281 100644
--- a/stage2/Lib.scala
+++ b/stage2/Lib.scala
@@ -15,7 +15,7 @@ import scala.util._
 case class Developer(id: String, name: String, timezone: String, url: URL)
 
 /** Don't extend. Create your own libs :). */
-final class Lib(logger: Logger) extends Stage1Lib(logger) with Scaffold{
+final class Lib(val logger: Logger) extends Stage1Lib(logger) with Scaffold{
   lib =>
 
   val buildClassName = "Build"
@@ -74,7 +74,7 @@ final class Lib(logger: Logger) extends Stage1Lib(logger) with Scaffold{
   }
 
   def docJar(
-    cbtHasChanged: Boolean,
+    cbtLastModified: Long,
     scalaVersion: String,
     sourceFiles: Seq[File],
     dependencyClasspath: ClassPath,
@@ -101,7 +101,7 @@ final class Lib(logger: Logger) extends Stage1Lib(logger) with Scaffold{
         runMain(
           "scala.tools.nsc.ScalaDoc",
           args,
-          new ScalaDependencies(cbtHasChanged,mavenCache,scalaVersion).classLoader(classLoaderCache)
+          new ScalaDependencies(cbtLastModified,mavenCache,scalaVersion).classLoader(classLoaderCache)
         )
       }
       lib.jarFile(