Method AppendEcho

Source/cmLocalUnixMakefileGenerator3.cxx:1232–1305

}

void cmLocalUnixMakefileGenerator3::AppendEcho(
  std::vector<std::string>& commands, std::string const& text, EchoColor color,
  EchoProgress const* progress)
{
  // Choose the color for the text.
  std::string color_name;
  if (this->GlobalGenerator->GetToolSupportsColor() && this->ColorMakefile) {
    // See cmake::ExecuteEchoColor in cmake.cxx for these options.
    // This color set is readable on both black and white backgrounds.
    switch (color) {
      case EchoNormal:
        break;
      case EchoDepend:
        color_name = "--magenta --bold ";
        break;
      case EchoBuild:
        color_name = "--green ";
        break;
      case EchoLink:
        color_name = "--green --bold ";
        break;
      case EchoGenerate:
        color_name = "--blue --bold ";
        break;
      case EchoGlobal:
        color_name = "--cyan ";
        break;
    }
  }

  // Echo one line at a time.
  std::string line;
  line.reserve(200);
  for (char const* c = text.c_str();; ++c) {
    if (*c == '\n' || *c == '\0') {
      // Avoid writing a blank last line on end-of-string.
      if (*c != '\0' || !line.empty()) {
        // Add a command to echo this line.
        std::string cmd;
        if (color_name.empty() && !progress) {
          // Use the native echo command.
          cmd = cmStrCat("@echo ", this->EscapeForShell(line, false, true));
        } else {
          // Use cmake to echo the text in color.
          cmd = cmStrCat(
            "@$(CMAKE_COMMAND) -E cmake_echo_color \"--switch=$(COLOR)\" ",
            color_name);
          if (progress) {
            cmd = cmStrCat(cmd, "--progress-dir=",
                           this->ConvertToOutputFormat(
                             progress->Dir, cmOutputConverter::SHELL),
                           " --progress-num=", progress->Arg, ' ');
          }
          cmd += this->EscapeForShell(line);
        }
        commands.emplace_back(std::move(cmd));
      }