001 package org.apache.maven.scm.plugin;
002
003 /*
004 * Licensed to the Apache Software Foundation (ASF) under one
005 * or more contributor license agreements. See the NOTICE file
006 * distributed with this work for additional information
007 * regarding copyright ownership. The ASF licenses this file
008 * to you under the Apache License, Version 2.0 (the
009 * "License"); you may not use this file except in compliance
010 * with the License. You may obtain a copy of the License at
011 *
012 * http://www.apache.org/licenses/LICENSE-2.0
013 *
014 * Unless required by applicable law or agreed to in writing,
015 * software distributed under the License is distributed on an
016 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017 * KIND, either express or implied. See the License for the
018 * specific language governing permissions and limitations
019 * under the License.
020 */
021
022 import org.apache.maven.plugin.MojoExecutionException;
023 import org.apache.maven.scm.ScmException;
024 import org.apache.maven.scm.command.diff.DiffScmResult;
025 import org.apache.maven.scm.repository.ScmRepository;
026 import org.codehaus.plexus.util.FileUtils;
027
028 import java.io.File;
029 import java.io.IOException;
030
031 /**
032 * Display the difference of the working copy with the latest copy in the configured scm url.
033 *
034 * @author <a href="evenisse@apache.org">Emmanuel Venisse</a>
035 * @version $Id: DiffMojo.java 1371922 2012-08-11 11:41:43Z rfscholte $
036 * @goal diff
037 * @aggregator
038 */
039 public class DiffMojo
040 extends AbstractScmMojo
041 {
042 /**
043 * The version type (branch/tag/revision) of scmVersion.
044 *
045 * @parameter expression="${startScmVersionType}"
046 */
047 private String startScmVersionType;
048
049 /**
050 * The version (revision number/branch name/tag name).
051 *
052 * @parameter expression="${startScmVersion}"
053 */
054 private String startScmVersion;
055
056 /**
057 * The version type (branch/tag/revision) of scmVersion.
058 *
059 * @parameter expression="${endScmVersionType}"
060 */
061 private String endScmVersionType;
062
063 /**
064 * The version (revision number/branch name/tag name).
065 *
066 * @parameter expression="${endScmVersion}"
067 */
068 private String endScmVersion;
069
070 /**
071 * Output file name.
072 *
073 * @parameter expression="${outputFile}"
074 * default-value="${project.artifactId}.diff"
075 */
076 private File outputFile;
077
078 /** {@inheritDoc} */
079 public void execute()
080 throws MojoExecutionException
081 {
082 super.execute();
083
084 try
085 {
086 ScmRepository repository = getScmRepository();
087
088 DiffScmResult result = getScmManager().diff( repository, getFileSet(),
089 getScmVersion( startScmVersionType, startScmVersion ),
090 getScmVersion( endScmVersionType, endScmVersion ) );
091
092 checkResult( result );
093
094 getLog().info( result.getPatch() );
095
096 try
097 {
098 if ( outputFile != null )
099 {
100 FileUtils.fileWrite( outputFile.getAbsolutePath(), result.getPatch() );
101 }
102 }
103 catch ( IOException e )
104 {
105 throw new MojoExecutionException( "Can't write patch file.", e );
106 }
107 }
108 catch ( IOException e )
109 {
110 throw new MojoExecutionException( "Cannot run diff command : ", e );
111 }
112 catch ( ScmException e )
113 {
114 throw new MojoExecutionException( "Cannot run diff command : ", e );
115 }
116 }
117 }