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c332e0bf3c
Isolation of policy changes inside scripts is important for protecting the including context. This teaches include() and find_package() to imply a cmake_policy(PUSH) and cmake_policy(POP) around the scripts they load, with a NO_POLICY_SCOPE option to disable the behavior. This also creates CMake Policy CMP0011 to provide compatibility. See issue #8192.
94 lines
2.7 KiB
C++
94 lines
2.7 KiB
C++
/*=========================================================================
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Program: CMake - Cross-Platform Makefile Generator
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Module: $RCSfile$
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Language: C++
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Date: $Date$
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Version: $Revision$
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Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
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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
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notices for more information.
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=========================================================================*/
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#ifndef cmIncludeCommand_h
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#define cmIncludeCommand_h
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#include "cmCommand.h"
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/** \class cmIncludeCommand
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* \brief
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*
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* cmIncludeCommand defines a list of distant
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* files that can be "included" in the current list file.
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* In almost every sense, this is identical to a C/C++
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* #include command. Arguments are first expended as usual.
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*/
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class cmIncludeCommand : 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 cmIncludeCommand;
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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() { 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() {return "include";}
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/**
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* Succinct documentation.
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*/
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virtual const char* GetTerseDocumentation()
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{
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return "Read CMake listfile code from the given file.";
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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()
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{
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return
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" include(<file|module> [OPTIONAL] [RESULT_VARIABLE <VAR>]\n"
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" [NO_POLICY_SCOPE])\n"
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"Reads CMake listfile code from the given file. Commands in the file "
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"are processed immediately as if they were written in place of the "
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"include command. If OPTIONAL is present, then no error "
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"is raised if the file does not exist. If RESULT_VARIABLE is given "
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"the variable will be set to the full filename which "
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"has been included or NOTFOUND if it failed.\n"
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"If a module is specified instead of a file, the file with name "
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"<modulename>.cmake is searched in the CMAKE_MODULE_PATH."
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"\n"
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"See the cmake_policy() command documentation for discussion of the "
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"NO_POLICY_SCOPE option."
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;
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}
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cmTypeMacro(cmIncludeCommand, cmCommand);
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};
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#endif
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