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, 5 insertions, 3 deletions

diff --git a/nailgun_launcher/BuildStage1Result.java b/nailgun_launcher/BuildStage1Result.java
index 312871d..64a660d 100644
--- a/nailgun_launcher/BuildStage1Result.java
+++ b/nailgun_launcher/BuildStage1Result.java
@@ -1,12 +1,14 @@
 package cbt;
 public class BuildStage1Result{
-  public Boolean changed;
+  public long start;
+  public long stage1LastModified;
   public ClassLoader classLoader;
   public String stage1Classpath;
   public String nailgunClasspath;
   public String compatibilityClasspath;
-  public BuildStage1Result( Boolean changed, ClassLoader classLoader, String stage1Classpath, String nailgunClasspath, String compatibilityClasspath ){
-    this.changed = changed;
+  public BuildStage1Result( long start, long stage1LastModified, ClassLoader classLoader, String stage1Classpath, String nailgunClasspath, String compatibilityClasspath ){
+    this.start = start;
+    this.stage1LastModified = stage1LastModified;
     this.classLoader = classLoader;
     this.stage1Classpath = stage1Classpath;
     this.nailgunClasspath = nailgunClasspath;