1 package org.apache.maven.scm.plugin;
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 org.apache.maven.plugin.MojoExecutionException;
23 import org.apache.maven.scm.ScmException;
24 import org.apache.maven.scm.command.diff.DiffScmResult;
25 import org.apache.maven.scm.repository.ScmRepository;
26 import org.codehaus.plexus.util.FileUtils;
27
28 import java.io.File;
29 import java.io.IOException;
30
31 /**
32 * Display the difference of the working copy with the latest copy in the configured scm url.
33 *
34 * @author <a href="evenisse@apache.org">Emmanuel Venisse</a>
35 * @version $Id: DiffMojo.java 538856 2007-05-17 09:58:55Z evenisse $
36 * @goal diff
37 * @description Create a diff
38 * @aggregator
39 */
40 public class DiffMojo
41 extends AbstractScmMojo
42 {
43 /**
44 * The version type (branch/tag/revision) of scmVersion.
45 *
46 * @parameter expression="${startScmVersionType}"
47 */
48 private String startScmVersionType;
49
50 /**
51 * The version (revision number/branch name/tag name).
52 *
53 * @parameter expression="${startScmVersion}"
54 */
55 private String startScmVersion;
56
57 /**
58 * The version type (branch/tag/revision) of scmVersion.
59 *
60 * @parameter expression="${endScmVersionType}"
61 */
62 private String endScmVersionType;
63
64 /**
65 * The version (revision number/branch name/tag name).
66 *
67 * @parameter expression="${startScmVersion}"
68 */
69 private String endScmVersion;
70
71 /**
72 * Output file name.
73 *
74 * @parameter expression="${outputFile}"
75 * default-value="${project.artifactId}.diff"
76 */
77 private File outputFile;
78
79 public void execute()
80 throws MojoExecutionException
81 {
82 super.execute();
83
84 try
85 {
86 ScmRepository repository = getScmRepository();
87
88 DiffScmResult result = getScmManager().diff( repository, getFileSet(),
89 getScmVersion( startScmVersionType, startScmVersion ),
90 getScmVersion( endScmVersionType, endScmVersion ) );
91
92 checkResult( result );
93
94 getLog().info( result.getPatch() );
95
96 try
97 {
98 if ( outputFile != null )
99 {
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 }