001 package org.apache.maven.scm.provider.git.gitexe.command.status;
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.scm.ScmFile;
023 import org.apache.maven.scm.ScmFileStatus;
024 import org.apache.maven.scm.log.ScmLogger;
025 import org.apache.regexp.RE;
026 import org.apache.regexp.RESyntaxException;
027 import org.codehaus.plexus.util.StringUtils;
028 import org.codehaus.plexus.util.cli.StreamConsumer;
029
030 import java.io.File;
031 import java.util.ArrayList;
032 import java.util.List;
033
034 /**
035 * @author <a href="mailto:struberg@yahoo.de">Mark Struberg</a>
036 * @version $Id: GitStatusConsumer.java 1375087 2012-08-20 16:10:26Z olamy $
037 */
038 public class GitStatusConsumer
039 implements StreamConsumer
040 {
041 /**
042 * The pattern used to match added file lines
043 */
044 private static final String ADDED_PATTERN = "^A[ M]* (.*)$";
045
046 /**
047 * The pattern used to match modified file lines
048 */
049 private static final String MODIFIED_PATTERN = "^ *M[ M]* (.*)$";
050
051 /**
052 * The pattern used to match deleted file lines
053 */
054 private static final String DELETED_PATTERN = "^ *D * (.*)$";
055
056 /**
057 * @see #ADDED_PATTERN
058 */
059 private RE addedRegexp;
060
061 /**
062 * @see #MODIFIED_PATTERN
063 */
064 private RE modifiedRegexp;
065
066 /**
067 * @see #DELETED_PATTERN
068 */
069 private RE deletedRegexp;
070
071 private ScmLogger logger;
072
073 private File workingDirectory;
074
075 private List<ScmFile> changedFiles = new ArrayList<ScmFile>();
076
077 // ----------------------------------------------------------------------
078 //
079 // ----------------------------------------------------------------------
080
081 public GitStatusConsumer( ScmLogger logger, File workingDirectory )
082 {
083 this.logger = logger;
084 this.workingDirectory = workingDirectory;
085
086 try
087 {
088 addedRegexp = new RE( ADDED_PATTERN );
089 modifiedRegexp = new RE( MODIFIED_PATTERN );
090 deletedRegexp = new RE( DELETED_PATTERN );
091 }
092 catch ( RESyntaxException ex )
093 {
094 throw new RuntimeException(
095 "INTERNAL ERROR: Could not create regexp to parse git log file. This shouldn't happen. Something is probably wrong with the oro installation.",
096 ex );
097 }
098 }
099
100 // ----------------------------------------------------------------------
101 // StreamConsumer Implementation
102 // ----------------------------------------------------------------------
103
104 /**
105 * {@inheritDoc}
106 */
107 public void consumeLine( String line )
108 {
109 if ( logger.isDebugEnabled() )
110 {
111 logger.debug( line );
112 }
113 if ( StringUtils.isEmpty( line ) )
114 {
115 return;
116 }
117
118 ScmFileStatus status = null;
119
120 String file = null;
121
122 if ( addedRegexp.match( line ) )
123 {
124 status = ScmFileStatus.ADDED;
125 file = addedRegexp.getParen( 1 );
126 }
127 else if ( modifiedRegexp.match( line ) )
128 {
129 status = ScmFileStatus.MODIFIED;
130 file = modifiedRegexp.getParen( 1 );
131 }
132 else if ( deletedRegexp.match( line ) )
133 {
134 status = ScmFileStatus.DELETED;
135 file = deletedRegexp.getParen( 1 );
136 }
137
138 // If the file isn't a file; don't add it.
139 if ( file != null && status != null )
140 {
141 if ( workingDirectory != null )
142 {
143 if ( status == ScmFileStatus.DELETED )
144 {
145 if ( new File( workingDirectory, file ).isFile() )
146 {
147 return;
148 }
149 }
150 else
151 {
152 if ( !new File( workingDirectory, file ).isFile() )
153 {
154 return;
155 }
156 }
157 }
158
159 changedFiles.add( new ScmFile( file, status ) );
160 }
161
162
163 }
164
165 public List<ScmFile> getChangedFiles()
166 {
167 return changedFiles;
168 }
169 }