package org.apache.maven.scm.provider.git.gitexe.command.untag;
   
   /*
    * 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 org.apache.maven.scm.ScmException;
  import org.apache.maven.scm.ScmFileSet;
  import org.apache.maven.scm.ScmResult;
  import org.apache.maven.scm.ScmUntagParameters;
  import org.apache.maven.scm.command.untag.AbstractUntagCommand;
  import org.apache.maven.scm.command.untag.UntagScmResult;
  import org.apache.maven.scm.provider.ScmProviderRepository;
  import org.apache.maven.scm.provider.git.command.GitCommand;
  import org.apache.maven.scm.provider.git.gitexe.command.GitCommandLineUtils;
  import org.apache.maven.scm.provider.git.repository.GitScmProviderRepository;
  import org.codehaus.plexus.util.StringUtils;
  import org.codehaus.plexus.util.cli.CommandLineUtils;
  import org.codehaus.plexus.util.cli.Commandline;
  
  /** {@inheritDoc} */
  public class GitUntagCommand
      extends AbstractUntagCommand
      implements GitCommand
  {
  
      /** {@inheritDoc} */
      public ScmResult executeUntagCommand( ScmProviderRepository repo, ScmFileSet fileSet,
                                            ScmUntagParameters scmUntagParameters )
          throws ScmException
      {
          String tag = scmUntagParameters.getTag();
          if ( tag == null || StringUtils.isEmpty( tag.trim() ) )
          {
              throw new ScmException( "tag name must be specified" );
          }
  
          GitScmProviderRepository repository = (GitScmProviderRepository) repo;
  
          CommandLineUtils.StringStreamConsumer stdout = new CommandLineUtils.StringStreamConsumer();
          CommandLineUtils.StringStreamConsumer stderr = new CommandLineUtils.StringStreamConsumer();
  
          int exitCode;
  
          Commandline clTag = createCommandLine( repository, fileSet.getBasedir(), tag );
  
          exitCode = GitCommandLineUtils.execute( clTag, stdout, stderr, getLogger() );
          if ( exitCode != 0 )
          {
              return new UntagScmResult( clTag.toString(), "The git-tag command failed.", stderr.getOutput(), false );
          }
  
          if ( repo.isPushChanges() )
          {
              // and now push the tag to the configured upstream repository
              Commandline clPush = createPushCommandLine( repository, fileSet, tag );
  
              exitCode = GitCommandLineUtils.execute( clPush, stdout, stderr, getLogger() );
              if ( exitCode != 0 )
              {
                  return new UntagScmResult( clPush.toString(), "The git-push command failed.", stderr.getOutput(),
                                           false );
              }
          }
  
          return new UntagScmResult( clTag.toString() );
      }
  
      // ----------------------------------------------------------------------
      //
      // ----------------------------------------------------------------------
  
      public static Commandline createCommandLine( GitScmProviderRepository repository, File workingDirectory,
                                                   String tag )
      {
          Commandline cl = GitCommandLineUtils.getBaseGitCommandLine( workingDirectory, "tag" );
  
          cl.createArg().setValue( "-d" );
          cl.createArg().setValue( tag );
  
          return cl;
      }
 
     public static Commandline createPushCommandLine( GitScmProviderRepository repository, ScmFileSet fileSet,
                                                      String tag )
     {
         Commandline cl = GitCommandLineUtils.getBaseGitCommandLine( fileSet.getBasedir(), "push" );
 
         cl.createArg().setValue( "--delete" );
         cl.createArg().setValue( repository.getPushUrl() );
         cl.createArg().setValue( "refs/tags/" + tag );
 
         return cl;
     }
 
 }