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1   package org.codehaus.mojo.gwt;
2   
3   /*
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   *   http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  
22  import java.io.File;
23  import java.io.IOException;
24  
25  import org.apache.maven.plugin.MojoExecutionException;
26  import org.apache.maven.plugin.MojoFailureException;
27  import org.apache.maven.plugins.annotations.Mojo;
28  import org.codehaus.mojo.gwt.utils.GwtModuleReaderException;
29  import org.codehaus.plexus.util.FileUtils;
30  
31  /**
32   * Cleanup the webapp directory for GWT module compilation output
33   * 
34   * @author <a href="mailto:nicolas@apache.org">Nicolas De Loof</a>
35   */
36  @Mojo(name = "clean", threadSafe = true)
37  public class GwtCleanMojo
38      extends AbstractGwtModuleMojo
39  {
40  
41      /**
42       * {@inheritDoc}
43       * 
44       * @see org.apache.maven.plugin.Mojo#execute()
45       */
46      public void execute()
47          throws MojoExecutionException, MojoFailureException
48      {
49          try
50          {
51              for ( String name : getModules() )
52              {
53                  File output = new File( getOutputDirectory(), readModule( name ).getPath() );
54                  clean( output );
55              }
56              clean( new File( getOutputDirectory(), ".gwt-tmp" ) );
57          }
58          catch ( GwtModuleReaderException e )
59          {
60              throw new MojoExecutionException( e.getMessage(), e );
61          }
62      }
63  
64      private void clean( File output )
65      {
66          try
67          {
68              FileUtils.deleteDirectory( output );
69          }
70          catch ( IOException e )
71          {
72              getLog().warn( "Failed to delete directory " + output );
73          }
74      }
75  }