package org.apache.maven.scm.provider.local;
   
   /*
    * 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 org.apache.maven.scm.CommandParameters;
  import org.apache.maven.scm.ScmException;
  import org.apache.maven.scm.ScmFileSet;
  import org.apache.maven.scm.command.add.AddScmResult;
  import org.apache.maven.scm.command.changelog.ChangeLogScmResult;
  import org.apache.maven.scm.command.checkin.CheckInScmResult;
  import org.apache.maven.scm.command.checkout.CheckOutScmResult;
  import org.apache.maven.scm.command.list.ListScmResult;
  import org.apache.maven.scm.command.mkdir.MkdirScmResult;
  import org.apache.maven.scm.command.update.UpdateScmResult;
  import org.apache.maven.scm.command.status.StatusScmResult;
  import org.apache.maven.scm.command.tag.TagScmResult;
  import org.apache.maven.scm.provider.AbstractScmProvider;
  import org.apache.maven.scm.provider.ScmProviderRepository;
  import org.apache.maven.scm.provider.local.command.add.LocalAddCommand;
  import org.apache.maven.scm.provider.local.command.changelog.LocalChangeLogCommand;
  import org.apache.maven.scm.provider.local.command.checkin.LocalCheckInCommand;
  import org.apache.maven.scm.provider.local.command.checkout.LocalCheckOutCommand;
  import org.apache.maven.scm.provider.local.command.list.LocalListCommand;
  import org.apache.maven.scm.provider.local.command.mkdir.LocalMkdirCommand;
  import org.apache.maven.scm.provider.local.command.update.LocalUpdateCommand;
  import org.apache.maven.scm.provider.local.command.status.LocalStatusCommand;
  import org.apache.maven.scm.provider.local.command.tag.LocalTagCommand;
  import org.apache.maven.scm.provider.local.repository.LocalScmProviderRepository;
  import org.apache.maven.scm.repository.ScmRepositoryException;
  import org.codehaus.plexus.util.StringUtils;
  
  import java.io.File;
  
  /**
   * @author <a href="mailto:trygvis@inamo.no">Trygve Laugst&oslash;l</a>
   * @author <a href="mailto:evenisse@apache.org">Emmanuel Venisse</a>
   *
   * @plexus.component role="org.apache.maven.scm.provider.ScmProvider" role-hint="local"
   */
  public class LocalScmProvider
      extends AbstractScmProvider
  {
      /** {@inheritDoc} */
      public String getScmType()
      {
          return "local";
      }
  
      /** {@inheritDoc} */
      public ScmProviderRepository makeProviderScmRepository( String scmSpecificUrl, char delimiter )
          throws ScmRepositoryException
      {
          String[] tokens = StringUtils.split( scmSpecificUrl, Character.toString( delimiter ) );
  
          if ( tokens.length != 2 )
          {
              throw new ScmRepositoryException( "The connection string didn't contain the expected number of tokens. "
                  + "Expected 2 tokens but got " + tokens.length + " tokens." );
          }
  
          // ----------------------------------------------------------------------
          //
          // ----------------------------------------------------------------------
  
          String root = tokens[0];
  
          File rootFile = new File( root );
  
          if ( !rootFile.isAbsolute() )
          {
              String basedir = System.getProperty( "basedir", new File( "" ).getAbsolutePath() );
  
              rootFile = new File( basedir, root );
          }
  
          if ( !rootFile.exists() )
          {
              throw new ScmRepositoryException( "The root doesn't exists (" + rootFile.getAbsolutePath() + ")." );
          }
  
          if ( !rootFile.isDirectory() )
          {
             throw new ScmRepositoryException( "The root isn't a directory (" + rootFile.getAbsolutePath() + ")." );
         }
 
         // ----------------------------------------------------------------------
         //
         // ----------------------------------------------------------------------
 
         String module = tokens[1];
 
         File moduleFile = new File( rootFile, module );
 
         if ( !moduleFile.exists() )
         {
             throw new ScmRepositoryException(
                 "The module doesn't exist (root: " + rootFile.getAbsolutePath() + ", module: " + module + ")." );
         }
 
         if ( !moduleFile.isDirectory() )
         {
             throw new ScmRepositoryException( "The module isn't a directory." );
         }
 
         return new LocalScmProviderRepository( rootFile.getAbsolutePath(), module );
     }
 
     // ----------------------------------------------------------------------
     // Utility methods
     // ----------------------------------------------------------------------
 
     public static String fixModuleName( String module )
     {
         if ( module.endsWith( "/" ) )
         {
             module = module.substring( 0, module.length() - 1 );
         }
 
         if ( module.startsWith( "/" ) )
         {
             module = module.substring( 1 );
         }
 
         return module;
     }
 
     /** {@inheritDoc} */
     public StatusScmResult status( ScmProviderRepository repository, ScmFileSet fileSet, CommandParameters parameters )
         throws ScmException
     {
         LocalStatusCommand command = new LocalStatusCommand();
 
         command.setLogger( getLogger() );
 
         return (StatusScmResult) command.execute( repository, fileSet, parameters );
     }
 
     /** {@inheritDoc} */
     public TagScmResult tag( ScmProviderRepository repository, ScmFileSet fileSet, CommandParameters parameters )
         throws ScmException
     {
         LocalTagCommand command = new LocalTagCommand();
 
         command.setLogger( getLogger() );
 
         return (TagScmResult) command.execute( repository, fileSet, parameters );
     }
 
     /** {@inheritDoc} */
     public AddScmResult add( ScmProviderRepository repository, ScmFileSet fileSet, CommandParameters parameters )
         throws ScmException
     {
         LocalAddCommand command = new LocalAddCommand();
 
         command.setLogger( getLogger() );
 
         return (AddScmResult) command.execute( repository, fileSet, parameters );
     }
 
     /** {@inheritDoc} */
     protected ChangeLogScmResult changelog( ScmProviderRepository repository, ScmFileSet fileSet,
                                             CommandParameters parameters )
         throws ScmException
     {
         LocalChangeLogCommand command = new LocalChangeLogCommand();
 
         command.setLogger( getLogger() );
 
         return (ChangeLogScmResult) command.execute( repository, fileSet, parameters );
     }
 
     /** {@inheritDoc} */
     public CheckInScmResult checkin( ScmProviderRepository repository, ScmFileSet fileSet,
                                      CommandParameters parameters )
         throws ScmException
     {
         LocalCheckInCommand command = new LocalCheckInCommand();
 
         command.setLogger( getLogger() );
 
         return (CheckInScmResult) command.execute( repository, fileSet, parameters );
     }
 
     /** {@inheritDoc} */
     public CheckOutScmResult checkout( ScmProviderRepository repository, ScmFileSet fileSet,
                                        CommandParameters parameters )
         throws ScmException
     {
         LocalCheckOutCommand command = new LocalCheckOutCommand();
 
         command.setLogger( getLogger() );
 
         return (CheckOutScmResult) command.execute( repository, fileSet, parameters );
     }
 
     /** {@inheritDoc} */
     protected ListScmResult list( ScmProviderRepository repository, ScmFileSet fileSet, CommandParameters parameters )
         throws ScmException
     {
         LocalListCommand command = new LocalListCommand();
 
         command.setLogger( getLogger() );
 
         return (ListScmResult) command.execute( repository, fileSet, parameters );
     }
     
     /** {@inheritDoc} */
     protected MkdirScmResult mkdir( ScmProviderRepository repository, ScmFileSet fileSet, CommandParameters parameters )
         throws ScmException
     {
         LocalMkdirCommand command = new LocalMkdirCommand();
 
         command.setLogger( getLogger() );
 
         return (MkdirScmResult) command.execute( repository, fileSet, parameters );
     }
 
     /** {@inheritDoc} */
     public UpdateScmResult update( ScmProviderRepository repository, ScmFileSet fileSet, CommandParameters parameters )
         throws ScmException
     {
         LocalUpdateCommand command = new LocalUpdateCommand();
 
         command.setLogger( getLogger() );
 
         return (UpdateScmResult) command.execute( repository, fileSet, parameters );
     }
 }