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authorBrad King <brad.king@kitware.com>2006-02-03 21:51:46 (GMT)
committerBrad King <brad.king@kitware.com>2006-02-03 21:51:46 (GMT)
commit2683c5bd0d74c01ef8ab2bd60a00b5e9115c1d65 (patch)
treebbb079cdfc9d94dd2efa8bdd87f65f6fdee7585d /Source/cmExecuteProcessCommand.cxx
parent131c4a3a17f5701e0e20ed0c4ad1a64ff4791423 (diff)
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ENH: Adding new EXECUTE_PROCESS command that interfaces to KWSys Process Execution.
Diffstat (limited to 'Source/cmExecuteProcessCommand.cxx')
-rw-r--r--Source/cmExecuteProcessCommand.cxx335
1 files changed, 335 insertions, 0 deletions
diff --git a/Source/cmExecuteProcessCommand.cxx b/Source/cmExecuteProcessCommand.cxx
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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.
+
+=========================================================================*/
+#include "cmExecuteProcessCommand.h"
+#include "cmSystemTools.h"
+
+#include <cmsys/Process.h>
+
+// cmExecuteProcessCommand
+bool cmExecuteProcessCommand::InitialPass(std::vector<std::string> const& args)
+{
+ if(args.size() < 1 )
+ {
+ this->SetError("called with incorrect number of arguments");
+ return false;
+ }
+ std::vector< std::vector<const char*> > cmds;
+ std::string arguments;
+ bool doing_command = false;
+ unsigned int command_index = 0;
+ bool output_quiet = false;
+ bool error_quiet = false;
+ std::string timeout_string;
+ std::string input_file;
+ std::string output_file;
+ std::string error_file;
+ std::string output_variable;
+ std::string error_variable;
+ std::string result_variable;
+ std::string working_directory;
+ for(size_t i=0; i < args.size(); ++i)
+ {
+ if(args[i] == "COMMAND")
+ {
+ doing_command = true;
+ command_index = cmds.size();
+ cmds.push_back(std::vector<const char*>());
+ }
+ else if(args[i] == "OUTPUT_VARIABLE")
+ {
+ doing_command = false;
+ if(++i < args.size())
+ {
+ output_variable = args[i];
+ }
+ else
+ {
+ this->SetError(" called with no value for OUTPUT_VARIABLE.");
+ return false;
+ }
+ }
+ else if(args[i] == "ERROR_VARIABLE")
+ {
+ doing_command = false;
+ if(++i < args.size())
+ {
+ error_variable = args[i];
+ }
+ else
+ {
+ this->SetError(" called with no value for ERROR_VARIABLE.");
+ return false;
+ }
+ }
+ else if(args[i] == "RESULT_VARIABLE")
+ {
+ doing_command = false;
+ if(++i < args.size())
+ {
+ result_variable = args[i];
+ }
+ else
+ {
+ this->SetError(" called with no value for RESULT_VARIABLE.");
+ return false;
+ }
+ }
+ else if(args[i] == "WORKING_DIRECTORY")
+ {
+ doing_command = false;
+ if(++i < args.size())
+ {
+ working_directory = args[i];
+ }
+ else
+ {
+ this->SetError(" called with no value for WORKING_DIRECTORY.");
+ return false;
+ }
+ }
+ else if(args[i] == "INPUT_FILE")
+ {
+ doing_command = false;
+ if(++i < args.size())
+ {
+ input_file = args[i];
+ }
+ else
+ {
+ this->SetError(" called with no value for INPUT_FILE.");
+ return false;
+ }
+ }
+ else if(args[i] == "OUTPUT_FILE")
+ {
+ doing_command = false;
+ if(++i < args.size())
+ {
+ output_file = args[i];
+ }
+ else
+ {
+ this->SetError(" called with no value for OUTPUT_FILE.");
+ return false;
+ }
+ }
+ else if(args[i] == "ERROR_FILE")
+ {
+ doing_command = false;
+ if(++i < args.size())
+ {
+ error_file = args[i];
+ }
+ else
+ {
+ this->SetError(" called with no value for ERROR_FILE.");
+ return false;
+ }
+ }
+ else if(args[i] == "TIMEOUT")
+ {
+ doing_command = false;
+ if(++i < args.size())
+ {
+ timeout_string = args[i];
+ }
+ else
+ {
+ this->SetError(" called with no value for TIMEOUT.");
+ return false;
+ }
+ }
+ else if(args[i] == "OUTPUT_QUIET")
+ {
+ doing_command = false;
+ output_quiet = true;
+ }
+ else if(args[i] == "ERROR_QUIET")
+ {
+ doing_command = false;
+ error_quiet = true;
+ }
+ else if(doing_command)
+ {
+ cmds[command_index].push_back(args[i].c_str());
+ }
+ }
+
+ // Check for commands given.
+ if(cmds.empty())
+ {
+ this->SetError(" called with no COMMAND argument.");
+ return false;
+ }
+ for(unsigned int i=0; i < cmds.size(); ++i)
+ {
+ if(cmds[i].empty())
+ {
+ this->SetError(" given COMMAND argument with no value.");
+ return false;
+ }
+ else
+ {
+ // Add the null terminating pointer to the command argument list.
+ cmds[i].push_back(0);
+ }
+ }
+
+ // Parse the timeout string.
+ double timeout = -1;
+ if(!timeout_string.empty())
+ {
+ if(sscanf(timeout_string.c_str(), "%lg", &timeout) != 1)
+ {
+ this->SetError(" called with TIMEOUT value that could not be parsed.");
+ return false;
+ }
+ }
+
+ // Create a process instance.
+ cmsysProcess* cp = cmsysProcess_New();
+
+ // Set the command sequence.
+ for(unsigned int i=0; i < cmds.size(); ++i)
+ {
+ cmsysProcess_AddCommand(cp, &*cmds[i].begin());
+ }
+
+ // Set the process working directory.
+ if(!working_directory.empty())
+ {
+ cmsysProcess_SetWorkingDirectory(cp, working_directory.c_str());
+ }
+
+ // Always hide the process window.
+ cmsysProcess_SetOption(cp, cmsysProcess_Option_HideWindow, 1);
+
+ // Check the output variables.
+ bool merge_output = (output_variable == error_variable);
+ if(error_variable.empty() && !error_quiet)
+ {
+ cmsysProcess_SetPipeShared(cp, cmsysProcess_Pipe_STDERR, 1);
+ }
+ if(!input_file.empty())
+ {
+ cmsysProcess_SetPipeFile(cp, cmsysProcess_Pipe_STDIN, input_file.c_str());
+ }
+ if(!output_file.empty())
+ {
+ cmsysProcess_SetPipeFile(cp, cmsysProcess_Pipe_STDOUT, output_file.c_str());
+ }
+ if(!error_file.empty())
+ {
+ cmsysProcess_SetPipeFile(cp, cmsysProcess_Pipe_STDERR, error_file.c_str());
+ }
+
+ // Set the timeout if any.
+ if(timeout >= 0)
+ {
+ cmsysProcess_SetTimeout(cp, timeout);
+ }
+
+ // Start the process.
+ cmsysProcess_Execute(cp);
+
+ // Read the process output.
+ std::vector<char> tempOutput;
+ std::vector<char> tempError;
+ int length;
+ char* data;
+ int p;
+ while((p = cmsysProcess_WaitForData(cp, &data, &length, 0), p))
+ {
+ // Translate NULL characters in the output into valid text.
+ for(int i=0; i < length; ++i)
+ {
+ if(data[i] == '\0')
+ {
+ data[i] = ' ';
+ }
+ }
+
+ // Put the output in the right place.
+ if(p == cmsysProcess_Pipe_STDOUT && !output_quiet ||
+ p == cmsysProcess_Pipe_STDERR && !error_quiet && merge_output)
+ {
+ if(output_variable.empty())
+ {
+ cmSystemTools::Stdout(data, length);
+ }
+ else
+ {
+ tempOutput.insert(tempOutput.end(), data, data+length);
+ }
+ }
+ else if(p == cmsysProcess_Pipe_STDERR && !error_quiet)
+ {
+ if(!error_variable.empty())
+ {
+ tempError.insert(tempError.end(), data, data+length);
+ }
+ }
+ }
+
+ // All output has been read. Wait for the process to exit.
+ cmsysProcess_WaitForExit(cp, 0);
+
+ // Store the output obtained.
+ if(!output_variable.empty())
+ {
+ tempOutput.push_back('\0');
+ m_Makefile->AddDefinition(output_variable.c_str(), &*tempOutput.begin());
+ }
+ if(!merge_output && !error_variable.empty())
+ {
+ tempError.push_back('\0');
+ m_Makefile->AddDefinition(error_variable.c_str(), &*tempError.begin());
+ }
+
+ // Store the result of running the process.
+ if(!result_variable.empty())
+ {
+ switch(cmsysProcess_GetState(cp))
+ {
+ case cmsysProcess_State_Exited:
+ {
+ int v = cmsysProcess_GetExitValue(cp);
+ char buf[100];
+ sprintf(buf, "%d", v);
+ m_Makefile->AddDefinition(result_variable.c_str(), buf);
+ }
+ break;
+ case cmsysProcess_State_Exception:
+ m_Makefile->AddDefinition(result_variable.c_str(),
+ cmsysProcess_GetExceptionString(cp));
+ break;
+ case cmsysProcess_State_Error:
+ m_Makefile->AddDefinition(result_variable.c_str(),
+ cmsysProcess_GetErrorString(cp));
+ break;
+ case cmsysProcess_State_Expired:
+ m_Makefile->AddDefinition(result_variable.c_str(),
+ "Process terminated due to timeout");
+ break;
+ }
+ }
+
+ // Delete the process instance.
+ cmsysProcess_Delete(cp);
+
+ return true;
+}