added one more method.

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@2982 71c3de6d-444a-0410-be80-ed276b4c234a

core/src/main/java/hudson/FilePath.java

@@ -828,6 +828,13 @@ public final class FilePath implements Serializable {
         else                return Hudson.MasterComputer.localChannel;
     }
 
+    /**
+     * Returns true if this {@link FilePath} represents a remote file. 
+     */
+    public boolean isRemote() {
+        return channel;
+    }
+
     private void writeObject(ObjectOutputStream oos) throws IOException {
         Channel target = Channel.current();