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/*=========================================================================
Program: CMake - Cross-Platform Makefile Generator
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.
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 cmAddCustomCommandCommand_h
#define cmAddCustomCommandCommand_h
#include "cmCommand.h"
/** \class cmAddCustomCommandCommand
* \brief
*
* cmAddCustomCommandCommand defines a new command (rule) that can
* be executed within the build process
*
*/
class cmAddCustomCommandCommand : public cmCommand
{
public:
/**
* This is a virtual constructor for the command.
*/
virtual cmCommand* Clone()
{
return new cmAddCustomCommandCommand;
}
/**
* This is called when the command is first encountered in
* the CMakeLists.txt file.
*/
virtual bool InitialPass(std::vector<std::string> const& args);
/**
* The name of the command as specified in CMakeList.txt.
*/
virtual const char* GetName() {return "ADD_CUSTOM_COMMAND";}
/**
* Succinct documentation.
*/
virtual const char* GetTerseDocumentation()
{
return "Add a custom build rule to the generated build system.";
}
/**
* More documentation.
*/
virtual const char* GetFullDocumentation()
{
return
"There are two main signatures for ADD_CUSTOM_COMMAND "
"The first signature is for adding a custom command "
"to produce an output.\n"
" ADD_CUSTOM_COMMAND(OUTPUT output1 [output2 ...]\n"
" COMMAND command1 [ARGS] [args1...]\n"
" [COMMAND command2 [ARGS] [args2...] ...]\n"
" [MAIN_DEPENDENCY depend]\n"
" [DEPENDS [depends...]]\n"
" [WORKING_DIRECTORY dir]\n"
" [COMMENT comment] [VERBATIM] [APPEND])\n"
"This defines a new command that can be executed during the build "
"process. The outputs named should be listed as source files in the "
"target for which they are to be generated. "
"Note that MAIN_DEPENDENCY is completely optional and is "
"used as a suggestion to visual studio about where to hang the "
"custom command. In makefile terms this creates a new target in the "
"following form:\n"
" OUTPUT: MAIN_DEPENDENCY DEPENDS\n"
" COMMAND\n"
"If more than one command is specified they will be executed in order. "
"The optional ARGS argument is for backward compatibility and will be "
"ignored.\n"
"The second signature adds a custom command to a target "
"such as a library or executable. This is useful for "
"performing an operation before or after building the target:\n"
" ADD_CUSTOM_COMMAND(TARGET target\n"
" PRE_BUILD | PRE_LINK | POST_BUILD\n"
" COMMAND command1 [ARGS] [args1...]\n"
" [COMMAND command2 [ARGS] [args2...] ...]\n"
" [WORKING_DIRECTORY dir]\n"
" [COMMENT comment] [VERBATIM])\n"
"This defines a new command that will be associated with "
"building the specified target. When the command will "
"happen is determined by which of the following is specified:\n"
" PRE_BUILD - run before all other dependencies\n"
" PRE_LINK - run after other dependencies\n"
" POST_BUILD - run after the target has been built\n"
"Note that the PRE_BUILD option is only supported on Visual "
"Studio 7 or later. For all other generators PRE_BUILD "
"will be treated as PRE_LINK.\n"
"If WORKING_DIRECTORY is specified the command will be executed "
"in the directory given. "
"If COMMENT is set, the value will be displayed as a "
"message before the commands are executed at build time. "
"If APPEND is specified the COMMAND and DEPENDS option values "
"are appended to the custom command for the first output specified. "
"There must have already been a previous call to this command with "
"the same output. The COMMENT, WORKING_DIRECTORY, and MAIN_DEPENDENCY "
"options are currently ignored when APPEND is given, "
"but may be used in the future."
"\n"
"If VERBATIM is given then all the arguments to the commands will be "
"passed exactly as specified no matter the build tool used. "
"Note that one level of escapes is still used by the CMake language "
"processor before ADD_CUSTOM_TARGET even sees the arguments. "
"Use of VERBATIM is recommended as it enables correct behavior. "
"When VERBATIM is not given the behavior is platform specific. "
"In the future VERBATIM may be enabled by default. The only reason "
"it is an option is to preserve compatibility with older CMake code.\n"
"If the output of the custom command is not actually "
"created as a file on disk it should be marked as SYMBOLIC with "
"SET_SOURCE_FILES_PROPERTIES.";
}
cmTypeMacro(cmAddCustomCommandCommand, cmCommand);
protected:
bool CheckOutputs(const std::vector<std::string>& outputs);
};
#endif
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