CMake/Source/cmVariableRequiresCommand.cxx

80 lines
2.6 KiB
C++
Raw Normal View History

/*============================================================================
CMake - Cross Platform Makefile Generator
Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
2001-11-19 17:34:29 +03:00
Distributed under the OSI-approved BSD License (the "License");
see accompanying file Copyright.txt for details.
2001-11-19 17:34:29 +03:00
This software is distributed WITHOUT ANY WARRANTY; without even the
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the License for more information.
============================================================================*/
2001-11-19 17:34:29 +03:00
#include "cmVariableRequiresCommand.h"
#include "cmCacheManager.h"
// cmLibraryCommand
bool cmVariableRequiresCommand
::InitialPass(std::vector<std::string>const& args, cmExecutionStatus &)
2001-11-19 17:34:29 +03:00
{
if(this->Disallowed(cmPolicies::CMP0035,
"The variable_requires command should not be called; see CMP0035."))
{ return true; }
if(args.size() < 3 )
2001-11-19 17:34:29 +03:00
{
this->SetError("called with incorrect number of arguments");
return false;
}
std::string testVariable = args[0];
if(!this->Makefile->IsOn(testVariable))
2001-11-19 17:34:29 +03:00
{
2005-06-01 16:48:58 +04:00
return true;
2001-11-19 17:34:29 +03:00
}
2005-06-01 16:48:58 +04:00
std::string resultVariable = args[1];
2001-11-19 17:34:29 +03:00
bool requirementsMet = true;
std::string notSet;
bool hasAdvanced = false;
2005-06-01 16:48:58 +04:00
for(unsigned int i = 2; i < args.size(); ++i)
2001-11-19 17:34:29 +03:00
{
if(!this->Makefile->IsOn(args[i]))
2001-11-19 17:34:29 +03:00
{
requirementsMet = false;
2005-06-01 16:48:58 +04:00
notSet += args[i];
notSet += "\n";
cmCacheManager* manager = this->Makefile->GetCacheManager();
if(manager->GetCacheEntryValue(args[i]) &&
manager->GetCacheEntryPropertyAsBool(args[i], "ADVANCED"))
{
hasAdvanced = true;
}
2001-11-19 17:34:29 +03:00
}
}
const char* reqVar = this->Makefile->GetDefinition(resultVariable);
// if reqVar is unset, then set it to requirementsMet
// if reqVar is set to true, but requirementsMet is false , then
// set reqVar to false.
2006-03-15 19:02:08 +03:00
if(!reqVar || (!requirementsMet && this->Makefile->IsOn(reqVar)))
{
this->Makefile->AddDefinition(resultVariable, requirementsMet);
}
2001-11-19 17:34:29 +03:00
if(!requirementsMet)
{
std::string message = "Variable assertion failed:\n";
message += testVariable +
2006-03-10 21:54:57 +03:00
" Requires that the following unset variables are set:\n";
message += notSet;
message += "\nPlease set them, or set ";
2003-02-14 17:54:15 +03:00
message += testVariable + " to false, and re-configure.\n";
if(hasAdvanced)
{
message +=
2006-03-10 21:54:57 +03:00
"One or more of the required variables is advanced."
" To set the variable, you must turn on advanced mode in cmake.";
}
cmSystemTools::Error(message.c_str());
}
2005-06-01 16:48:58 +04:00
return true;
}