CMake/Source/cmSetCommand.h

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/*=========================================================================
Program: CMake - Cross-Platform Makefile Generator
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Module: $RCSfile$
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
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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.
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=========================================================================*/
#ifndef cmSetCommand_h
#define cmSetCommand_h
#include "cmCommand.h"
/** \class cmSetCommand
* \brief Set a CMAKE variable
*
* cmSetCommand sets a variable to a value with expansion.
*/
class cmSetCommand : public cmCommand
{
public:
/**
* This is a virtual constructor for the command.
*/
virtual cmCommand* Clone()
{
return new cmSetCommand;
}
/**
* This is called when the command is first encountered in
* the CMakeLists.txt file.
*/
virtual bool InitialPass(std::vector<std::string> const& args);
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/**
* This determines if the command gets propagated down
* to makefiles located in subdirectories.
*/
virtual bool IsInherited() {return true;}
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/**
* This determines if the command is invoked when in script mode.
*/
virtual bool IsScriptable() { return true; }
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/**
* The name of the command as specified in CMakeList.txt.
*/
virtual const char* GetName() {return "SET";}
/**
* Succinct documentation.
*/
virtual const char* GetTerseDocumentation()
{
return "Set a CMAKE variable to a given value.";
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}
/**
* More documentation.
*/
virtual const char* GetFullDocumentation()
{
return
" SET(VAR [VALUE] [CACHE TYPE DOCSTRING [FORCE]])\n"
"Within CMAKE sets VAR to the value VALUE. VALUE is expanded before VAR "
"is set to it. If CACHE is present, then the VAR is put in the cache. "
"TYPE and DOCSTRING are required. TYPE is used by the CMake GUI to "
"choose a widget with which the user sets a value. The value for TYPE "
"may be one of\n"
" FILEPATH = File chooser dialog.\n"
" PATH = Directory chooser dialog.\n"
" STRING = Arbitrary string.\n"
" BOOL = Boolean ON/OFF checkbox.\n"
" INTERNAL = No GUI entry (used for persistent variables).\n"
"If TYPE is INTERNAL, then the VALUE is always written into the cache, "
"replacing any values existing in the cache. If it is not a CACHE VAR, "
"then this always writes into the current makefile. The FORCE option "
"will overwrite the CACHE value removing any changes by the USER.\n"
" SET(VAR VALUE1 ... VALUEN).\n"
"In this case VAR is set to a ; separated list of values.\n"
"VAR can be an environment variable such as:\n"
" SET( ENV{PATH} /home/martink )\n"
"in which case the environment variable will be set.";
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}
cmTypeMacro(cmSetCommand, cmCommand);
};
#endif