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114 lines
4.4 KiB
114 lines
4.4 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 cmExecuteProcessCommand_h
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#define cmExecuteProcessCommand_h
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#include "cmCommand.h"
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/** \class cmExecuteProcessCommand
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* \brief Command that adds a target to the build system.
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*
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* cmExecuteProcessCommand is a CMake language interface to the KWSys
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* Process Execution implementation.
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*/
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class cmExecuteProcessCommand : 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 cmExecuteProcessCommand;
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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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* The name of the command as specified in CMakeList.txt.
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*/
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virtual const char* GetName()
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{return "execute_process";}
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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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* Succinct documentation.
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*/
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virtual const char* GetTerseDocumentation()
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{
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return "Execute one or more child processes.";
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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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" execute_process(COMMAND <cmd1> [args1...]]\n"
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" [COMMAND <cmd2> [args2...] [...]]\n"
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" [WORKING_DIRECTORY <directory>]\n"
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" [TIMEOUT <seconds>]\n"
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" [RESULT_VARIABLE <variable>]\n"
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" [OUTPUT_VARIABLE <variable>]\n"
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" [ERROR_VARIABLE <variable>]\n"
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" [INPUT_FILE <file>]\n"
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" [OUTPUT_FILE <file>]\n"
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" [ERROR_FILE <file>]\n"
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" [OUTPUT_QUIET]\n"
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" [ERROR_QUIET]\n"
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" [OUTPUT_STRIP_TRAILING_WHITESPACE]\n"
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" [ERROR_STRIP_TRAILING_WHITESPACE])\n"
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"Runs the given sequence of one or more commands with the standard "
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"output of each process piped to the standard input of the next. "
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"A single standard error pipe is used for all processes. "
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"If WORKING_DIRECTORY is given the named directory will be set as "
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"the current working directory of the child processes. "
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"If TIMEOUT is given the child processes will be terminated if they "
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"do not finish in the specified number of seconds "
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"(fractions are allowed). "
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"If RESULT_VARIABLE is given the variable will be set to contain "
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"the result of running the processes. This will be an integer return "
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"code from the last child or a string describing an error condition. "
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"If OUTPUT_VARIABLE or ERROR_VARIABLE are given the variable named "
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"will be set with the contents of the standard output and standard "
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"error pipes respectively. If the same variable is named for both "
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"pipes their output will be merged in the order produced. "
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"If INPUT_FILE, OUTPUT_FILE, or ERROR_FILE is given the file named "
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"will be attached to the standard input of the first process, "
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"standard output of the last process, or standard error of all "
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"processes respectively. "
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"If OUTPUT_QUIET or ERROR_QUIET is given then the standard output "
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"or standard error results will be quietly ignored. "
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"If more than one OUTPUT_* or ERROR_* option is given for the same "
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"pipe the precedence is not specified. "
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"If no OUTPUT_* or ERROR_* options are given the output will be shared "
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"with the corresponding pipes of the CMake process itself.\n"
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"The execute_process command is a newer more powerful version of "
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"exec_program, but the old command has been kept for compatibility."
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;
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}
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cmTypeMacro(cmExecuteProcessCommand, cmCommand);
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};
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#endif
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