001 package org.apache.maven.scm.provider.hg.command.diff;
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.ScmException;
023 import org.apache.maven.scm.ScmFileSet;
024 import org.apache.maven.scm.ScmResult;
025 import org.apache.maven.scm.ScmVersion;
026 import org.apache.maven.scm.command.Command;
027 import org.apache.maven.scm.command.diff.AbstractDiffCommand;
028 import org.apache.maven.scm.command.diff.DiffScmResult;
029 import org.apache.maven.scm.provider.ScmProviderRepository;
030 import org.apache.maven.scm.provider.hg.HgUtils;
031 import org.apache.maven.scm.provider.hg.command.HgCommandConstants;
032 import org.codehaus.plexus.util.StringUtils;
033
034 /**
035 * @author <a href="mailto:thurner.rupert@ymono.net">thurner rupert</a>
036 * @version $Id: HgDiffCommand.java 686566 2008-08-16 21:52:46Z olamy $
037 */
038 public class HgDiffCommand
039 extends AbstractDiffCommand
040 implements Command
041 {
042 /** {@inheritDoc} */
043 protected DiffScmResult executeDiffCommand( ScmProviderRepository repo, ScmFileSet fileSet,
044 ScmVersion startRevision, ScmVersion endRevision )
045 throws ScmException
046 {
047 String[] diffCmd;
048 if ( startRevision != null && !StringUtils.isEmpty( startRevision.getName() ) )
049 {
050 String revArg = startRevision.getName();
051 if ( endRevision != null && !StringUtils.isEmpty( endRevision.getName() ) )
052 {
053 revArg += ".." + endRevision;
054 }
055 diffCmd = new String[] { HgCommandConstants.DIFF_CMD, HgCommandConstants.REVISION_OPTION, revArg };
056 }
057 else
058 {
059 diffCmd = new String[] { HgCommandConstants.DIFF_CMD };
060 }
061
062 diffCmd = HgUtils.expandCommandLine( diffCmd, fileSet );
063 HgDiffConsumer consumer = new HgDiffConsumer( getLogger(), fileSet.getBasedir() );
064
065 ScmResult result = HgUtils.execute( consumer, getLogger(), fileSet.getBasedir(), diffCmd );
066
067 return new DiffScmResult( consumer.getChangedFiles(), consumer.getDifferences(), consumer.getPatch(), result );
068 }
069 }