CMake/Source/cmFindProgramCommand.cxx

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/*=========================================================================
Program: CMake - Cross-Platform Makefile Generator
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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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=========================================================================*/
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#include "cmFindProgramCommand.h"
#include "cmCacheManager.h"
#include <stdlib.h>
#include <stdio.h>
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// cmFindProgramCommand
bool cmFindProgramCommand::InitialPass(std::vector<std::string> const& argsIn)
{
if(argsIn.size() < 2 )
{
this->SetError("called with incorrect number of arguments");
return false;
}
std::string doc = "Path to a program.";
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size_t size = argsIn.size();
std::vector<std::string> args;
for(unsigned int j = 0; j < size; ++j)
{
if(argsIn[j] != "DOC")
{
args.push_back(argsIn[j]);
}
else
{
if(j+1 < size)
{
doc = argsIn[j+1];
}
break;
}
}
std::vector<std::string>::iterator i = args.begin();
// Use the first argument as the name of something to be defined
const char* define = (*i).c_str();
i++; // move iterator to next arg
// Now check and see if the value has been stored in the cache
// already, if so use that value and don't look for the program
const char* cacheValue
= m_Makefile->GetDefinition(define);
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if(cacheValue && !cmSystemTools::IsNOTFOUND(cacheValue))
{
return true;
}
if(cacheValue)
{
cmCacheManager::CacheIterator it =
m_Makefile->GetCacheManager()->GetCacheIterator(args[0].c_str());
if(!it.IsAtEnd())
{
const char* hs = it.GetProperty("HELPSTRING");
doc = hs?hs:"(none)";
}
}
std::vector<std::string> path;
std::vector<std::string> names;
bool foundName = false;
bool foundPath = false;
bool doingNames = true;
bool no_system_path = false;
for (unsigned int j = 1; j < args.size(); ++j)
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{
if(args[j] == "NAMES")
{
doingNames = true;
foundName = true;
}
else if (args[j] == "PATHS")
{
doingNames = false;
foundPath = true;
}
else if (args[j] == "NO_SYSTEM_PATH")
{
no_system_path = true;
}
else
{
if(doingNames)
{
names.push_back(args[j]);
}
else
{
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cmSystemTools::ExpandRegistryValues(args[j]);
// Glob the entry in case of wildcards.
cmSystemTools::GlobDirs(args[j].c_str(), path);
}
}
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}
// if it is not in the cache, then search the system path
// add any user specified paths
if(!foundPath && !foundName)
{
path.clear();
names.clear();
names.push_back(args[1]);
for (unsigned int j = 2; j < args.size(); j++)
{
// expand variables
std::string exp = args[j];
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cmSystemTools::ExpandRegistryValues(exp);
// Glob the entry in case of wildcards.
cmSystemTools::GlobDirs(exp.c_str(), path);
}
}
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for(std::vector<std::string>::iterator it = names.begin();
it != names.end() ; ++it)
{
// Try to find the program.
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std::string result = cmSystemTools::FindProgram(it->c_str(),
path,
no_system_path);
if(result != "")
{
// Save the value in the cache
m_Makefile->AddCacheDefinition(define,
result.c_str(),
doc.c_str(),
cmCacheManager::FILEPATH);
return true;
}
}
m_Makefile->AddCacheDefinition(args[0].c_str(),
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(args[0] + "-NOTFOUND").c_str(),
doc.c_str(),
cmCacheManager::FILEPATH);
return true;
}