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102 lines
3.5 KiB
102 lines
3.5 KiB
/*============================================================================
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CMake - Cross Platform Makefile Generator
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Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
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Distributed under the OSI-approved BSD License (the "License");
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see accompanying file Copyright.txt for details.
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This software is distributed WITHOUT ANY WARRANTY; without even the
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implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the License for more information.
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============================================================================*/
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#ifndef cmSetCommand_h
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#define cmSetCommand_h
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#include "cmCommand.h"
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/** \class cmSetCommand
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* \brief Set a CMAKE variable
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*
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* cmSetCommand sets a variable to a value with expansion.
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*/
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class cmSetCommand : public cmCommand
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{
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public:
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/**
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* This is a virtual constructor for the command.
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*/
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virtual cmCommand* Clone()
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{
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return new cmSetCommand;
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}
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/**
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* This is called when the command is first encountered in
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* the CMakeLists.txt file.
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*/
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virtual bool InitialPass(std::vector<std::string> const& args,
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cmExecutionStatus &status);
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/**
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* This determines if the command is invoked when in script mode.
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*/
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virtual bool IsScriptable() const { return true; }
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/**
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* The name of the command as specified in CMakeList.txt.
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*/
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virtual const char* GetName() const {return "set";}
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/**
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* Succinct documentation.
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*/
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virtual const char* GetTerseDocumentation() const
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{
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return "Set a CMAKE variable to a given value.";
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}
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/**
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* More documentation.
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*/
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virtual const char* GetFullDocumentation() const
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{
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return
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" set(<variable> <value>\n"
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" [[CACHE <type> <docstring> [FORCE]] | PARENT_SCOPE])\n"
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"Within CMake sets <variable> to the value <value>. <value> is expanded"
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" before <variable> is set to it. If CACHE is present, then the "
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"<variable> is put in the cache. <type> and <docstring> are then "
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"required. <type> is used by the CMake GUI to choose a widget with "
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"which the user sets a value. The value for <type> may be one of\n"
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" FILEPATH = File chooser dialog.\n"
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" PATH = Directory chooser dialog.\n"
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" STRING = Arbitrary string.\n"
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" BOOL = Boolean ON/OFF checkbox.\n"
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" INTERNAL = No GUI entry (used for persistent variables).\n"
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"If <type> is INTERNAL, then the <value> is always written into the "
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"cache, replacing any values existing in the cache. If it is not a "
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"cache variable, then this always writes into the current makefile. The "
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"FORCE option will overwrite the cache value removing any changes by "
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"the user.\n"
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"If PARENT_SCOPE is present, the variable will be set in the scope "
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"above the current scope. Each new directory or function creates a new "
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"scope. This command will set the value of a variable into the parent "
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"directory or calling function (whichever is applicable to the case at "
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"hand).\n"
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"If <value> is not specified then the variable is removed "
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"instead of set. See also: the unset() command.\n"
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" set(<variable> <value1> ... <valueN>)\n"
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"In this case <variable> is set to a semicolon separated list of "
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"values.\n"
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"<variable> can be an environment variable such as:\n"
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" set( ENV{PATH} /home/martink )\n"
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"in which case the environment variable will be set.";
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}
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cmTypeMacro(cmSetCommand, cmCommand);
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};
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#endif
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