CMake/Source/cmExecProgramCommand.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.
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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.
=========================================================================*/
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#include "cmExecProgramCommand.h"
#include "cmSystemTools.h"
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// cmExecProgramCommand
bool cmExecProgramCommand::InitialPass(std::vector<std::string> const& args)
{
if(args.size() < 1 )
{
this->SetError("called with incorrect number of arguments");
return false;
}
std::string arguments;
bool doingargs = false;
int count = 0;
std::string output_variable;
bool haveoutput_variable = false;
std::string return_variable;
bool havereturn_variable = false;
for(size_t i=0; i < args.size(); ++i)
{
if(args[i] == "OUTPUT_VARIABLE")
{
count++;
doingargs = false;
havereturn_variable = false;
haveoutput_variable = true;
}
else if ( haveoutput_variable )
{
if ( output_variable.size() > 0 )
{
this->SetError("called with incorrect number of arguments");
return false;
}
output_variable = args[i];
haveoutput_variable = false;
count ++;
}
else if(args[i] == "RETURN_VALUE")
{
count++;
doingargs = false;
haveoutput_variable = false;
havereturn_variable = true;
}
else if ( havereturn_variable )
{
if ( return_variable.size() > 0 )
{
this->SetError("called with incorrect number of arguments");
return false;
}
return_variable = args[i];
havereturn_variable = false;
count ++;
}
else if(args[i] == "ARGS")
{
count++;
havereturn_variable = false;
haveoutput_variable = false;
doingargs = true;
}
else if(doingargs)
{
arguments += args[i];
arguments += " ";
count++;
}
}
std::string command;
if(arguments.size())
{
command = cmSystemTools::ConvertToRunCommandPath(args[0].c_str());
command += " ";
command += arguments;
}
else
{
command = args[0];
}
bool verbose = true;
if(output_variable.size() > 0)
{
verbose = false;
}
int retVal = 0;
std::string output;
bool result = true;
if(args.size() - count == 2)
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{
cmSystemTools::MakeDirectory(args[1].c_str());
result = cmSystemTools::RunCommand(command.c_str(), output, retVal,
args[1].c_str(), verbose);
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}
else
{
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result = cmSystemTools::RunCommand(command.c_str(), output,
retVal, 0, verbose);
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}
if(!result)
{
retVal = -1;
}
if ( output_variable.size() > 0 )
{
std::string::size_type first = output.find_first_not_of(" \n\t\r");
std::string::size_type last = output.find_last_not_of(" \n\t\r");
if(first == std::string::npos)
{
first = 0;
}
if(last == std::string::npos)
{
last = output.size()-1;
}
std::string coutput = std::string(output, first, last-first+1);
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this->Makefile->AddDefinition(output_variable.c_str(), coutput.c_str());
}
if ( return_variable.size() > 0 )
{
char buffer[100];
sprintf(buffer, "%d", retVal);
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this->Makefile->AddDefinition(return_variable.c_str(), buffer);
}
return true;
}