| /* Distributed under the OSI-approved BSD 3-Clause License. See accompanying |
| file Copyright.txt or https://cmake.org/licensing for details. */ |
| #include "cmRemoveCommand.h" |
| |
| #include "cmMakefile.h" |
| #include "cmSystemTools.h" |
| |
| class cmExecutionStatus; |
| |
| // cmRemoveCommand |
| bool cmRemoveCommand::InitialPass(std::vector<std::string> const& args, |
| cmExecutionStatus&) |
| { |
| if (args.empty()) { |
| return true; |
| } |
| |
| std::string const& variable = args[0]; // VAR is always first |
| // get the old value |
| const char* cacheValue = this->Makefile->GetDefinition(variable); |
| |
| // if there is no old value then return |
| if (!cacheValue) { |
| return true; |
| } |
| |
| // expand the variable |
| std::vector<std::string> varArgsExpanded; |
| cmSystemTools::ExpandListArgument(cacheValue, varArgsExpanded); |
| |
| // expand the args |
| // check for REMOVE(VAR v1 v2 ... vn) |
| std::vector<std::string> argsExpanded; |
| std::vector<std::string> temp; |
| temp.insert(temp.end(), args.begin() + 1, args.end()); |
| cmSystemTools::ExpandList(temp, argsExpanded); |
| |
| // now create the new value |
| std::string value; |
| for (std::string const& varArgExpanded : varArgsExpanded) { |
| int found = 0; |
| for (std::string const& argExpanded : argsExpanded) { |
| if (varArgExpanded == argExpanded) { |
| found = 1; |
| break; |
| } |
| } |
| if (!found) { |
| if (!value.empty()) { |
| value += ";"; |
| } |
| value += varArgExpanded; |
| } |
| } |
| |
| // add the definition |
| this->Makefile->AddDefinition(variable, value.c_str()); |
| |
| return true; |
| } |