mirror of
https://github.com/reactos/CMake.git
synced 2024-11-28 14:01:21 +00:00
261c248254
Add an unset() command option to remove a variable from the calling scope, just like the set() command's PARENT_SCOPE option. Teach the Unset test to cover such cases.
66 lines
1.9 KiB
C++
66 lines
1.9 KiB
C++
/*============================================================================
|
|
CMake - Cross Platform Makefile Generator
|
|
Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
|
|
|
|
Distributed under the OSI-approved BSD License (the "License");
|
|
see accompanying file Copyright.txt for details.
|
|
|
|
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.
|
|
============================================================================*/
|
|
#include "cmUnsetCommand.h"
|
|
|
|
// cmUnsetCommand
|
|
bool cmUnsetCommand::InitialPass(std::vector<std::string> const& args,
|
|
cmExecutionStatus &)
|
|
{
|
|
if(args.size() < 1 || args.size() > 2)
|
|
{
|
|
this->SetError("called with incorrect number of arguments");
|
|
return false;
|
|
}
|
|
|
|
const char* variable = args[0].c_str();
|
|
|
|
// unset(ENV{VAR})
|
|
if (!strncmp(variable,"ENV{",4) && strlen(variable) > 5)
|
|
{
|
|
// what is the variable name
|
|
char *envVarName = new char [strlen(variable)];
|
|
strncpy(envVarName,variable+4,strlen(variable)-5);
|
|
envVarName[strlen(variable)-5] = '\0';
|
|
|
|
#ifdef CMAKE_BUILD_WITH_CMAKE
|
|
cmSystemTools::UnsetEnv(envVarName);
|
|
#endif
|
|
delete[] envVarName;
|
|
return true;
|
|
}
|
|
// unset(VAR)
|
|
else if (args.size() == 1)
|
|
{
|
|
this->Makefile->RemoveDefinition(variable);
|
|
return true;
|
|
}
|
|
// unset(VAR CACHE)
|
|
else if ((args.size() == 2) && (args[1] == "CACHE"))
|
|
{
|
|
this->Makefile->RemoveCacheDefinition(variable);
|
|
return true;
|
|
}
|
|
// unset(VAR PARENT_SCOPE)
|
|
else if ((args.size() == 2) && (args[1] == "PARENT_SCOPE"))
|
|
{
|
|
this->Makefile->RaiseScope(variable, 0);
|
|
return true;
|
|
}
|
|
// ERROR: second argument isn't CACHE or PARENT_SCOPE
|
|
else
|
|
{
|
|
this->SetError("called with an invalid second argument");
|
|
return false;
|
|
}
|
|
}
|
|
|