package org.apache.maven.scm.provider.hg.command.tag;
   
   /*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you under the Apache License, Version 2.0 (the
    * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   * http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an
   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   * KIND, either express or implied.  See the License for the
   * specific language governing permissions and limitations
   * under the License.
   */
  
  import java.io.File;
  import java.util.ArrayList;
  import java.util.List;
  
  import org.apache.maven.scm.ScmException;
  import org.apache.maven.scm.ScmFile;
  import org.apache.maven.scm.ScmFileSet;
  import org.apache.maven.scm.ScmFileStatus;
  import org.apache.maven.scm.ScmResult;
  import org.apache.maven.scm.ScmTagParameters;
  import org.apache.maven.scm.command.Command;
  import org.apache.maven.scm.command.tag.AbstractTagCommand;
  import org.apache.maven.scm.command.tag.TagScmResult;
  import org.apache.maven.scm.provider.ScmProviderRepository;
  import org.apache.maven.scm.provider.hg.HgUtils;
  import org.apache.maven.scm.provider.hg.command.HgCommandConstants;
  import org.apache.maven.scm.provider.hg.command.HgConsumer;
  import org.apache.maven.scm.provider.hg.command.inventory.HgListConsumer;
  import org.apache.maven.scm.provider.hg.repository.HgScmProviderRepository;
  import org.codehaus.plexus.util.StringUtils;
  
  /**
   * Tag
   *
   * @author <a href="mailto:ryan@darksleep.com">ryan daum</a>
   * @author Olivier Lamy
   *
   */
  public class HgTagCommand
      extends AbstractTagCommand
      implements Command
  {
  
      protected ScmResult executeTagCommand( ScmProviderRepository scmProviderRepository, ScmFileSet fileSet, String tag,
                                             String message )
          throws ScmException
      {
          return executeTagCommand( scmProviderRepository, fileSet, tag, new ScmTagParameters( message ) );
      }
  
      /**
       * {@inheritDoc}
       */
      protected ScmResult executeTagCommand( ScmProviderRepository scmProviderRepository, ScmFileSet fileSet, String tag,
                                             ScmTagParameters scmTagParameters )
          throws ScmException
      {
  
          if ( tag == null || StringUtils.isEmpty( tag.trim() ) )
          {
              throw new ScmException( "tag must be specified" );
          }
  
          if ( !fileSet.getFileList().isEmpty() )
          {
              throw new ScmException( "This provider doesn't support tagging subsets of a directory : "
                  + fileSet.getFileList() );
          }
  
          File workingDir = fileSet.getBasedir();
  
          // build the command
          String[] tagCmd =
              new String[]{ HgCommandConstants.TAG_CMD, HgCommandConstants.MESSAGE_OPTION, scmTagParameters.getMessage(),
                  tag };
  
          // keep the command about in string form for reporting
          StringBuilder cmd = joinCmd( tagCmd );
          HgTagConsumer consumer = new HgTagConsumer( getLogger() );
          ScmResult result = HgUtils.execute( consumer, getLogger(), workingDir, tagCmd );
          HgScmProviderRepository repository = (HgScmProviderRepository) scmProviderRepository;
          if ( result.isSuccess() )
          {
              // now push
              // Push to parent branch if any
  
              if ( repository.isPushChanges() )
              {
                 if ( !repository.getURI().equals( fileSet.getBasedir().getAbsolutePath() ) )
                 {
                     String branchName = HgUtils.getCurrentBranchName( getLogger(), workingDir );
                     boolean differentOutgoingBranch =
                         HgUtils.differentOutgoingBranchFound( getLogger(), workingDir, branchName );
 
                     String[] pushCmd = new String[]{ HgCommandConstants.PUSH_CMD,
                         differentOutgoingBranch ? HgCommandConstants.REVISION_OPTION + branchName : null,
                         repository.getURI() };
 
                     result =
                         HgUtils.execute( new HgConsumer( getLogger() ), getLogger(), fileSet.getBasedir(), pushCmd );
                 }
             }
         }
         else
         {
             throw new ScmException( "Error while executing command " + cmd.toString() );
         }
 
         // do an inventory to return the files tagged (all of them)
         String[] listCmd = new String[]{ HgCommandConstants.INVENTORY_CMD };
         HgListConsumer listconsumer = new HgListConsumer( getLogger() );
         result = HgUtils.execute( listconsumer, getLogger(), fileSet.getBasedir(), listCmd );
         if ( result.isSuccess() )
         {
             List<ScmFile> files = listconsumer.getFiles();
             List<ScmFile> fileList = new ArrayList<ScmFile>();
             for ( ScmFile f : files )
             {
                 if ( !f.getPath().endsWith( ".hgtags" ) )
                 {
                     fileList.add( new ScmFile( f.getPath(), ScmFileStatus.TAGGED ) );
                 }
             }
 
             return new TagScmResult( fileList, result );
         }
         else
         {
             throw new ScmException( "Error while executing command " + cmd.toString() );
         }
     }
 
     private StringBuilder joinCmd( String[] cmd )
     {
         StringBuilder result = new StringBuilder();
         for ( int i = 0; i < cmd.length; i++ )
         {
             String s = cmd[i];
             result.append( s );
             if ( i < cmd.length - 1 )
             {
                 result.append( " " );
             }
         }
         return result;
     }
 }