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/*=========================================================================

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile$
  Language:  C++
  Date:      $Date$
  Version:   $Revision$

  Copyright (c) 2002 Insight Consortium. All rights reserved.
  See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even 
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
     PURPOSE.  See the above copyright notices for more information.

=========================================================================*/
#ifndef cmLoadCacheCommand_h
#define cmLoadCacheCommand_h

/** \class cmLoadCacheCommand
 * \brief load a cache file
 *
 * cmLoadCacheCommand loads the non internal values of a cache file
 */
class cmLoadCacheCommand : public cmCommand
{
public:
  /**
   * This is a virtual constructor for the command.
   */
  virtual cmCommand* Clone() 
    {
    return new cmLoadCacheCommand;
    }

  /**
   * This is called when the command is first encountered in
   * the CMakeLists.txt file.
   */
  virtual bool InitialPass(std::vector<std::string> const& args);

  /**
   * This determines if the command gets propagated down
   * to makefiles located in subdirectories.
   */
  virtual bool IsInherited() {return true;}

  /**
   * The name of the command as specified in CMakeList.txt.
   */
  virtual const char* GetName() { return "LOAD_CACHE";}

  /**
   * Succinct documentation.
   */
  virtual const char* GetTerseDocumentation() 
    {
    return "load in the values from another cache.";
    }
  
  /**
   * More documentation.
   */
  virtual const char* GetFullDocumentation()
    {
    return
      "LOAD_CACHE(pathToCacheFile [EXCLUDE entry1...] [INCLUDE_INTERNALS entry1...])\n"
      "Load in the values from another cache. This is useful for a project "
      "that depends on another project built in a different tree."
      "EXCLUDE option can be used to provide a list of entries to be excluded."
      "INCLUDE_INTERNALS can be used to provide a list of internal entries"
      "to be included. Normally, no internal entries are brougt in.";
    }
  
  cmTypeMacro(cmLoadCacheCommand, cmCommand);
};


#endif