| /*============================================================================ |
| 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 (cmHasLiteralPrefix(variable, "ENV{") && 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; |
| } |
| } |
| |