Remove other versions of the same plugin, like plugin:install does

git-svn-id: https://svn.apache.org/repos/asf/maven/maven-1/plugins/trunk@114033 13f79535-47bb-0310-9956-ffa450edef68

plugin/plugin.jelly

@@ -175,21 +175,22 @@
     <maven:param-check value="${artifactId}" fail="true" message="'artifactId' must be specified"/>
     <maven:param-check value="${groupId}" fail="true" message="'groupId' must be specified"/>
     <maven:param-check value="${version}" fail="true" message="'version' must be specified"/>
+    
     <j:set var="repoList">${maven.repo.remote}</j:set>
     <u:tokenize var="repos" delim=",">${repoList.trim()}</u:tokenize>
+    
     <j:forEach var="repo" items="${repos}">
       <echo>repo is '${repo}'</echo>
       <u:file var="localPlugin" 
         name="${maven.home}/plugins/${artifactId}-${version}.jar" />
       <j:if test="${!localPlugin.exists()}">
-        <u:file var="localPluginFile" name="${localPlugin}"/>
         <j:set var="remoteFile"
           value="${repo}/${groupId}/plugins/${artifactId}-${version}.jar" />
         <echo>trying to download ${remoteFile}</echo>
         <j:invokeStatic var="dummy" method="getFile" 
           className="org.apache.maven.util.HttpUtils">
           <j:arg type="java.lang.String" value="${remoteFile}" />
-          <j:arg type="java.io.File" value="${localPluginFile}"/>
+          <j:arg type="java.io.File" value="${localPlugin}"/>
           <j:arg type="boolean" value="false"/>
           <j:arg type="boolean" value="true"/>
           <j:arg type="java.lang.String" value="${maven.proxy.host}" />
@@ -200,5 +201,24 @@
         </j:invokeStatic>
       </j:if>
     </j:forEach>
+    
+    <j:set var="downloaded" value="${localPlugin.exists()}"/>
+    <j:if test="${downloaded}">
+      <echo>Plugin downloaded, removing other versions</echo>
+      <delete verbose="false">
+        <fileset dir="${maven.home}/plugins">
+          <include name="${artifactId}-*.jar" />
+          <exclude name="${artifactId}-${version}.jar" />
+        </fileset>
+      </delete>
+
+      <delete includeEmptyDirs="true" verbose="false">
+        <fileset dir="${maven.plugin.unpacked.dir}">
+          <include name="*.cache"/>
+          <include name="**/.processed" />
+          <include name="${artifactId}-*/**" />
+        </fileset>
+      </delete>
+    </j:if>
   </goal>
 </project>