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1   package org.apache.maven.scm.provider.svn.svnexe.command.blame;
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.scm.ScmException;
23  import org.apache.maven.scm.ScmFileSet;
24  import org.apache.maven.scm.command.blame.AbstractBlameCommand;
25  import org.apache.maven.scm.command.blame.BlameScmResult;
26  import org.apache.maven.scm.provider.ScmProviderRepository;
27  import org.apache.maven.scm.provider.svn.command.SvnCommand;
28  import org.apache.maven.scm.provider.svn.repository.SvnScmProviderRepository;
29  import org.apache.maven.scm.provider.svn.svnexe.command.SvnCommandLineUtils;
30  import org.codehaus.plexus.util.cli.CommandLineException;
31  import org.codehaus.plexus.util.cli.CommandLineUtils;
32  import org.codehaus.plexus.util.cli.Commandline;
33  
34  import java.io.File;
35  
36  /**
37   * @author Evgeny Mandrikov
38   * @author Olivier Lamy
39   * @since 1.4
40   */
41  public class SvnBlameCommand
42      extends AbstractBlameCommand
43      implements SvnCommand
44  {
45      /**
46       * {@inheritDoc}
47       */
48      public BlameScmResult executeBlameCommand( ScmProviderRepository repo, ScmFileSet workingDirectory,
49                                                 String filename )
50          throws ScmException
51      {
52          Commandline cl = createCommandLine( (SvnScmProviderRepository) repo, workingDirectory.getBasedir(), filename );
53  
54          SvnBlameConsumer consumer = new SvnBlameConsumer( getLogger() );
55  
56          CommandLineUtils.StringStreamConsumer stderr = new CommandLineUtils.StringStreamConsumer();
57  
58          if ( getLogger().isInfoEnabled() )
59          {
60              getLogger().info( "Executing: " + SvnCommandLineUtils.cryptPassword( cl ) );
61              getLogger().info( "Working directory: " + cl.getWorkingDirectory().getAbsolutePath() );
62          }
63  
64          int exitCode;
65  
66          try
67          {
68              exitCode = SvnCommandLineUtils.execute( cl, consumer, stderr, getLogger() );
69          }
70          catch ( CommandLineException ex )
71          {
72              throw new ScmException( "Error while executing command.", ex );
73          }
74  
75          if ( exitCode != 0 )
76          {
77              return new BlameScmResult( cl.toString(), "The svn command failed.", stderr.getOutput(), false );
78          }
79  
80          return new BlameScmResult( cl.toString(), consumer.getLines() );
81      }
82  
83      public static Commandline createCommandLine( SvnScmProviderRepository repository, File workingDirectory,
84                                                   String filename )
85      {
86          Commandline cl = SvnCommandLineUtils.getBaseSvnCommandLine( workingDirectory, repository );
87          cl.createArg().setValue( "blame" );
88          cl.createArg().setValue( "--xml" );
89          cl.createArg().setValue( filename );
90          return cl;
91      }
92  }