Added Clirr (http://clirr.sourceforge.net/) support to the build for …

…checking binary compatibility between releases

build.properties

@@ -17,3 +17,6 @@
 javac.source=1.5
 
 lib.version=2.8.0.BUILD-SNAPSHOT
+
+compatibility.baseline.version=2.7.3
+url.libbase=http://cloud.github.com/downloads/mongodb

build.xml

@@ -16,7 +16,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 -->
 
-<project name="MongoDB Java Driver" default="compile" basedir=".">
+<project name="mongo-java-driver" default="compile" basedir=".">
 
     <taskdef resource="net/sf/antcontrib/antcontrib.properties">
         <classpath>
@@ -368,6 +368,22 @@ limitations under the License.
         <!--</clover-report>-->
     </target>
 
+
+    <target name="check-binary-compatibility" depends="jar">
+        <taskdef classpathref="classpath" resource="clirrtask.properties"/>
+
+        <property name="jar.baseline" value="mongo-${build.conf.compatibility.baseline.version}.jar"/>
+
+        <get src="${build.conf.url.libbase}/${ant.project.name}/${jar.baseline}" dest="${jar.baseline}"
+             verbose="true" usetimestamp="true"/>
+
+        <clirr failOnBinError="no" failOnSrcError="no">
+            <origfiles dir="." includes="${jar.baseline}"/>
+            <newfiles dir="." includes="mongo.jar"/>
+            <formatter type="plain" outfile="build/clirr.txt"/>
+        </clirr>
+    </target>
+
   <!-- NOTE: publish-local is now located in maven/ -->
 
 </project>