Function MainSignature

Source/cmBuildCommand.cxx:16–92

namespace {

bool MainSignature(std::vector<std::string> const& args,
                   cmExecutionStatus& status)
{
  if (args.empty()) {
    status.SetError("requires at least one argument naming a CMake variable");
    return false;
  }

  // The cmake variable in which to store the result.
  std::string const& variable = args[0];

  // Parse remaining arguments.
  std::string configuration;
  std::string project_name;
  std::string target;
  std::string parallel;
  enum Doing
  {
    DoingNone,
    DoingConfiguration,
    DoingProjectName,
    DoingTarget,
    DoingParallel
  };
  Doing doing = DoingNone;
  for (unsigned int i = 1; i < args.size(); ++i) {
    if (args[i] == "CONFIGURATION") {
      doing = DoingConfiguration;
    } else if (args[i] == "PROJECT_NAME") {
      doing = DoingProjectName;
    } else if (args[i] == "TARGET") {
      doing = DoingTarget;
    } else if (args[i] == "PARALLEL_LEVEL") {
      doing = DoingParallel;
    } else if (doing == DoingConfiguration) {
      doing = DoingNone;
      configuration = args[i];
    } else if (doing == DoingProjectName) {
      doing = DoingNone;
      project_name = args[i];
    } else if (doing == DoingTarget) {
      doing = DoingNone;
      target = args[i];
    } else if (doing == DoingParallel) {
      doing = DoingNone;
      parallel = args[i];
    } else {
      status.SetError(cmStrCat("unknown argument \"", args[i], '"'));
      return false;
    }
  }

  // If null/empty CONFIGURATION argument, cmake --build uses 'Debug'
  // in the currently implemented multi-configuration global generators...
  // so we put this code here to end up with the same default configuration
  // as the original 2-arg build_command signature:
  //
  if (configuration.empty()) {