Function HandleExportMode

Source/cmExportCommand.cxx:247–336

}

static bool HandleExportMode(std::vector<std::string> const& args,
                             cmExecutionStatus& status)
{
  struct ExportArguments : public ArgumentParser::ParseResult
  {
    ArgumentParser::NonEmpty<std::string> ExportSetName;
    ArgumentParser::MaybeEmpty<std::string> Namespace;
    ArgumentParser::NonEmpty<std::string> Filename;
    ArgumentParser::NonEmpty<std::string> CxxModulesDirectory;
    bool ExportPackageDependencies = false;
  };

  auto parser =
    cmArgumentParser<ExportArguments>{}
      .Bind("EXPORT"_s, &ExportArguments::ExportSetName)
      .Bind("NAMESPACE"_s, &ExportArguments::Namespace)
      .Bind("FILE"_s, &ExportArguments::Filename)
      .Bind("CXX_MODULES_DIRECTORY"_s, &ExportArguments::CxxModulesDirectory);

  if (cmExperimental::HasSupportEnabled(
        status.GetMakefile(),
        cmExperimental::Feature::ExportPackageDependencies)) {
    parser.Bind("EXPORT_PACKAGE_DEPENDENCIES"_s,
                &ExportArguments::ExportPackageDependencies);
  }

  std::vector<std::string> unknownArgs;
  ExportArguments arguments = parser.Parse(args, &unknownArgs);

  cmMakefile& mf = status.GetMakefile();
  cmGlobalGenerator* gg = mf.GetGlobalGenerator();

  if (!arguments.Check(args[0], &unknownArgs, status)) {
    cmPolicies::PolicyStatus const p =
      status.GetMakefile().GetPolicyStatus(cmPolicies::CMP0208);
    if (!unknownArgs.empty() || p == cmPolicies::NEW) {
      return false;
    }
    if (p == cmPolicies::WARN) {
      status.GetMakefile().IssueMessage(
        MessageType::AUTHOR_WARNING, cmStrCat("export "_s, status.GetError()));
      status.GetMakefile().IssueMessage(
        MessageType::AUTHOR_WARNING,
        cmPolicies::GetPolicyWarning(cmPolicies::CMP0208));
    }
  }

  std::string fname;
  if (arguments.Filename.empty()) {
    fname = arguments.ExportSetName + ".cmake";
  } else {
    if (!cmHasSuffix(arguments.Filename, ".cmake"_s)) {
      std::ostringstream e;
      e << "FILE option given filename \"" << arguments.Filename
        << "\" which does not have an extension of \".cmake\".\n";
      status.SetError(e.str());
      return false;
    }