Add RunListener.onDeleted so plugins can watch for deleted builds.

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@15941 71c3de6d-444a-0410-be80-ed276b4c234a

core/src/main/java/hudson/model/Run.java

@@ -798,6 +798,8 @@ public abstract class Run <JobT extends Job<JobT,RunT>,RunT extends Run<JobT,Run
      *      if we fail to delete.
      */
     public synchronized void delete() throws IOException {
+        RunListener.fireDeleted(this);
+
         // if we have a symlink, delete it, too
         File link = new File(project.getBuildDir(), String.valueOf(getNumber()));
         link.delete();

core/src/main/java/hudson/model/listeners/RunListener.java

@@ -88,6 +88,13 @@ public abstract class RunListener<R extends Run> implements ExtensionPoint {
      */
     public void onStarted(R r, TaskListener listener) {}
 
+    /**
+     * Called right before a build is going to be deleted.
+     *
+     * @param r The build.
+     */
+    public void onDeleted(R r) {}
+
     /**
      * Registers this object as an active listener so that it can start getting
      * callbacks invoked.
@@ -143,6 +150,16 @@ public abstract class RunListener<R extends Run> implements ExtensionPoint {
         }
     }
 
+    /**
+     * Fires the {@link #onFinalized(Run)} event.
+     */
+    public static void fireDeleted(Run r) {
+        for (RunListener l : all()) {
+            if(l.targetType.isInstance(r))
+                l.onDeleted(r);
+        }
+    }
+
     /**
      * Returns all the registered {@link RunListener} descriptors.
      */