MPCHANGES-25: Validate changes.xml

git-svn-id: https://svn.apache.org/repos/asf/maven/maven-1/plugins/trunk@291220 13f79535-47bb-0310-9956-ffa450edef68

changes/plugin.jelly

@@ -24,6 +24,7 @@
   xmlns:define="jelly:define"
   xmlns:util="jelly:util"
   xmlns:c="changes:transform"
+  xmlns:plugin="plugin"
   xmlns:doc="doc">
 
   <goal name="maven-changes-plugin:register">
@@ -77,6 +78,24 @@
     
   </goal>
 
+  <goal name="changes:validate"
+    description="Validates the changes.xml file">
+
+    <available
+        file="${maven.docs.src}/changes.xml"
+        property="changesFile.available"/>
+
+    <j:if test="${changesFile.available}">
+        <echo>schema=${plugin.resources}/xsd/changes.xsd</echo>
+        <echo>file=${maven.docs.src}/changes.xml</echo>
+        <plugin:validate-xml
+            schema="${plugin.resources}/xsd/changes.xsd"
+            file="${maven.docs.src}/changes.xml"/>
+    </j:if>
+
+  </goal>
+
+
   <define:taglib uri="changes:transform">
     <define:tag name="release-version">
       <j:useBean var="transformer" class="org.apache.maven.changes.ReleaseVersion"/>