Method RunPreprocessor

Source/cmcmd.cxx:2715–2747

}

int cmcmd::RunPreprocessor(std::vector<std::string> const& command,
                           std::string const& intermediate_file)
{
  cmUVProcessChainBuilder builder;

  uv_fs_t fs_req;
  int preprocessedFile =
    uv_fs_open(nullptr, &fs_req, intermediate_file.c_str(), O_CREAT | O_RDWR,
               0644, nullptr);
  uv_fs_req_cleanup(&fs_req);

  builder
    .SetExternalStream(cmUVProcessChainBuilder::Stream_OUTPUT,
                       preprocessedFile)
    .SetBuiltinStream(cmUVProcessChainBuilder::Stream_ERROR)
    .AddCommand(command);
  auto process = builder.Start();
  if (!process.Valid() || process.GetStatus(0).SpawnResult != 0) {
    std::cerr << "Failed to start preprocessor.";
    return 1;
  }
  if (!process.Wait()) {
    std::cerr << "Failed to wait for preprocessor";
    return 1;
  }
  if (process.GetStatus(0).ExitStatus != 0) {
    cmUVIStream errorStream(process.ErrorStream());
    std::cerr << errorStream.rdbuf();

    return 1;
  }
  return 0;
}

int cmcmd::RunLLVMRC(std::vector<std::string> const& args)
{