Make <antversion> available as Task.

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@489345 13f79535-47bb-0310-9956-ffa450edef68

src/main/org/apache/tools/ant/taskdefs/condition/AntVersion.java

@@ -20,25 +20,38 @@ package org.apache.tools.ant.taskdefs.condition;
 
 import org.apache.tools.ant.BuildException;
 import org.apache.tools.ant.Project;
+import org.apache.tools.ant.Task;
 import org.apache.tools.ant.util.DeweyDecimal;
 
 /**
  * An Ant version condition.
  * @since Ant 1.7
  */
-public class AntVersion implements Condition {
+public class AntVersion extends Task implements Condition {
 
     private String atLeast = null;
     private String exactly = null;
+    private String propertyname = null;
+    
 
     /**
      * Evalute the condition.
      * @return true if the condition is true.
      * @throws BuildException if an error occurs.
      */
+    public void execute() throws BuildException {
+        if (propertyname == null) {
+            throw new BuildException("'property' must be set.");
+        }
+        getProject().setNewProperty(propertyname, getVersion().toString());
+    }
+    
     public boolean eval() throws BuildException {
         validate();
         DeweyDecimal actual = getVersion();
+        
+        System.out.println("AntVersion::actual = " + actual);
+        
         if (null != atLeast) {
             return actual.isGreaterThanOrEqual(new DeweyDecimal(atLeast));
         }
@@ -123,4 +136,13 @@ public class AntVersion implements Condition {
     public void setExactly(String exactly) {
         this.exactly = exactly;
     }
+
+    public String getProperty() {
+        return propertyname;
+    }
+
+    public void setProperty(String propertyname) {
+        this.propertyname = propertyname;
+    }
+
 }

src/main/org/apache/tools/ant/taskdefs/defaults.properties

@@ -2,6 +2,7 @@
 ant=org.apache.tools.ant.taskdefs.Ant
 antcall=org.apache.tools.ant.taskdefs.CallTarget
 antstructure=org.apache.tools.ant.taskdefs.AntStructure
+antversion=org.apache.tools.ant.taskdefs.condition.AntVersion
 apply=org.apache.tools.ant.taskdefs.Transform
 available=org.apache.tools.ant.taskdefs.Available
 basename=org.apache.tools.ant.taskdefs.Basename

src/tests/antunit/taskdefs/condition/antversion-test.xml

@@ -3,6 +3,7 @@
 
   <target name="test-atleast">
     <au:assertTrue>
+        <!-- AntVersion was introduced like AntUnit in 1.7 - so this must be true -->
     	<antversion atleast="1.7.0"/>
     </au:assertTrue>	
   </target>
@@ -19,6 +20,11 @@
    	  <antversion atleast="1.9.0"/>
     </au:assertFalse>
   </target>
+    
+  <target name="test-task">
+    <antversion property="antversion"/>
+    <au:assertPropertyEquals name="antversion" value="1.7.1"/>
+  </target>    
 
   <target name="all">
     <au:antunit>
@@ -27,4 +33,4 @@
     </au:antunit>
   </target>
 
-</project>
+</project>