package org.apache.maven.scm.provider.jazz.command;
   
   /*
    * 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.ScmException;
  import org.apache.maven.scm.ScmFileSet;
  import org.apache.maven.scm.log.ScmLogger;
  import org.apache.maven.scm.provider.ScmProviderRepository;
  import org.apache.maven.scm.provider.jazz.command.consumer.ErrorConsumer;
  import org.apache.maven.scm.provider.jazz.repository.JazzScmProviderRepository;
  import org.codehaus.plexus.util.Os;
  import org.codehaus.plexus.util.StringUtils;
  import org.codehaus.plexus.util.cli.CommandLineException;
  import org.codehaus.plexus.util.cli.CommandLineUtils;
  import org.codehaus.plexus.util.cli.Commandline;
  import org.codehaus.plexus.util.cli.StreamConsumer;
  
  import java.io.File;
  import java.util.Iterator;
  
  /**
   * The base class for the underlying jazz "scm.sh"/"scm.exe" command.
   * <p/>
   * The SCM command is documented here:
   * <p/>
   * V2.0.2: http://publib.boulder.ibm.com/infocenter/rtc/v2r0m0/topic/com.ibm.team.scm.doc/topics/r_scm_cli_scm.html
   * V3.0:   http://publib.boulder.ibm.com/infocenter/clmhelp/v3r0/topic/com.ibm.team.scm.doc/topics/r_scm_cli_scm.html
   * V3.0.1: http://publib.boulder.ibm.com/infocenter/clmhelp/v3r0m1/topic/com.ibm.team.scm.doc/topics/r_scm_cli_scm.html
   *
   * @author <a href="mailto:ChrisGWarp@gmail.com">Chris Graham</a>
   */
  public class JazzScmCommand
  {
      // The logger to use.
      private ScmLogger fLogger;
  
      // The Commandline that we build up and execute.
      private Commandline fCommand;
  
      /**
       * Create a JazzScmCommand when no sub-command is needed.
       *
       * @throws ScmException
       */
      public JazzScmCommand( String cmd, ScmProviderRepository repo, ScmFileSet fileSet, ScmLogger logger )
      {
          this( cmd, null, repo, true, fileSet, logger );
      }
  
      /**
       * Create a JazzScmCommand when a sub-command is needed.
       * eg: "create snapshot ..."
       */
      public JazzScmCommand( String cmd, String subCmd, ScmProviderRepository repo, ScmFileSet fileSet, ScmLogger logger )
      {
          this( cmd, subCmd, repo, true, fileSet, logger );
      }
  
      /**
       * Create a JazzScmCommand, adding the repository-uri as needed.
       */
      public JazzScmCommand( String cmd, String subCmd, ScmProviderRepository repo, boolean addRepositoryWorkspaceArg,
                             ScmFileSet fileSet, ScmLogger logger )
      {
          fLogger = logger;
          fCommand = new Commandline();
  
          // TODO This was developed and tested in Windows (in which scm (scm.exe) was the valid executable)
          // Verify that the executable is valid in other operating systems.
          fCommand.setExecutable( JazzConstants.SCM_EXECUTABLE );
  
          if ( fileSet != null )
          {
              fCommand.setWorkingDirectory( fileSet.getBasedir().getAbsolutePath() );
  
              // Make the directory, if need be.
              if ( !fCommand.getWorkingDirectory().exists() )
              {
                  boolean success = fCommand.getWorkingDirectory().mkdirs();
                  if ( !success )
                  {
                      // Just log the error, don't throw an error, as it is going to fail anyway.
                     logErrorMessage( "Working directory did not exist" + " and it couldn't be created: "
                                          + fCommand.getWorkingDirectory() );
                 }
             }
         }
 
         // Add the main command
         if ( !StringUtils.isEmpty( cmd ) )
         {
             addArgument( cmd );
         }
 
         // Add the sub-command if present
         if ( !StringUtils.isEmpty( subCmd ) )
         {
             addArgument( subCmd );
         }
 
         JazzScmProviderRepository jazzRepo = (JazzScmProviderRepository) repo;
 
         // Add the repository argument if needed (most commands need this, but not all)
         if ( addRepositoryWorkspaceArg )
         {
             String repositoryWorkspace = jazzRepo.getRepositoryURI();
             if ( !StringUtils.isEmpty( repositoryWorkspace ) )
             {
                 addArgument( JazzConstants.ARG_REPOSITORY_URI );
                 addArgument( jazzRepo.getRepositoryURI() );
             }
         }
 
         // Add the username argument
         // TODO Figure out how we would use the login command / username caching so this is not required on each
         // command.
         String user = jazzRepo.getUser();
         if ( !StringUtils.isEmpty( user ) )
         {
             addArgument( JazzConstants.ARG_USER_NAME );
             addArgument( jazzRepo.getUser() );
         }
 
         // Add the password argument
         // TODO Figure out how we would use the login command / password caching so this is not required on each
         // command.
         String password = jazzRepo.getPassword();
         if ( !StringUtils.isEmpty( password ) )
         {
             addArgument( JazzConstants.ARG_USER_PASSWORD );
             addArgument( jazzRepo.getPassword() );
         }
     }
 
     public void addArgument( ScmFileSet fileSet )
     {
         logInfoMessage( "files: " + fileSet.getBasedir().getAbsolutePath() );
         Iterator<File> iter = fileSet.getFileList().iterator();
         while ( iter.hasNext() )
         {
             fCommand.createArg().setValue(  iter.next().getPath() );
         }
     }
 
     public void addArgument( String arg )
     {
         fCommand.createArg().setValue( arg );
     }
 
     public int execute( StreamConsumer out, ErrorConsumer err )
         throws ScmException
     {
         logInfoMessage( "Executing: " + cryptPassword( fCommand ) );
         if ( fCommand.getWorkingDirectory() != null )
         {
             logInfoMessage( "Working directory: " + fCommand.getWorkingDirectory().getAbsolutePath() );
         }
 
         int status = 0;
         try
         {
             status = CommandLineUtils.executeCommandLine( fCommand, out, err );
         }
         catch ( CommandLineException e )
         {
             String errorOutput = err.getOutput();
             if ( errorOutput.length() > 0 )
             {
                 logErrorMessage( "Error: " + err.getOutput() );
             }
             throw new ScmException( "Error while executing Jazz SCM command line - " + getCommandString(), e );
         }
         String errorOutput = err.getOutput();
         if ( errorOutput.length() > 0 )
         {
             logErrorMessage( "Error: " + err.getOutput() );
         }
         return status;
     }
 
     public String getCommandString()
     {
         return fCommand.toString();
     }
 
     public Commandline getCommandline()
     {
         return fCommand;
     }
 
     private void logErrorMessage( String message )
     {
         if ( fLogger != null )
         {
             fLogger.error( message );
         }
     }
 
     private void logInfoMessage( String message )
     {
         if ( fLogger != null )
         {
             fLogger.info( message );
         }
     }
 
     private void logDebugMessage( String message )
     {
         if ( fLogger != null )
         {
             fLogger.debug( message );
         }
     }
 
     // Unashamedly 'borrowed' from SvnCommandLineUtils
     // (but fixed for cases where the line ends in the password (no trailing space or further input).
     public static String cryptPassword( Commandline cl )
     {
         String clString = cl.toString();
 
         int pos = clString.indexOf( "--password" );
 
         if ( pos > 0 )
         {
             String beforePassword = clString.substring( 0, pos + "--password ".length() );
             String afterPassword = clString.substring( pos + "--password ".length() );
             pos = afterPassword.indexOf( ' ' );
             if ( pos > 0 )
             {
                 afterPassword = afterPassword.substring( pos );
             }
             else
             {
                 afterPassword = "\"";
             }
             if ( Os.isFamily( Os.FAMILY_WINDOWS ) )
             {
                 clString = beforePassword + "*****" + afterPassword;
             }
             else
             {
                 clString = beforePassword + "'*****'";
             }
         }
 
         return clString;
     }
 
 }