Method PrintCommandTrace

Source/cmMakefile.cxx:334–429

}

void cmMakefile::PrintCommandTrace(cmListFileFunction const& lff,
                                   cmListFileBacktrace const& bt,
                                   CommandMissingFromStack missing) const
{
  // Check if current file in the list of requested to trace...
  std::vector<std::string> const& trace_only_this_files =
    this->GetCMakeInstance()->GetTraceSources();
  std::string const& full_path = bt.Top().FilePath;
  cm::string_view only_filename =
    cmSystemTools::GetFilenameNameView(full_path);
  bool trace = trace_only_this_files.empty();
  if (!trace) {
    for (std::string const& file : trace_only_this_files) {
      std::string::size_type const pos = full_path.rfind(file);
      trace = (pos != std::string::npos) &&
        ((pos + file.size()) == full_path.size()) &&
        (only_filename == cmSystemTools::GetFilenameNameView(file));
      if (trace) {
        break;
      }
    }
    // Do nothing if current file wasn't requested for trace...
    if (!trace) {
      return;
    }
  }

  std::vector<std::string> args;
  std::string temp;
  bool expand = this->GetCMakeInstance()->GetTraceExpand();

  args.reserve(lff.Arguments().size());
  for (cmListFileArgument const& arg : lff.Arguments()) {
    if (expand && arg.Delim != cmListFileArgument::Bracket) {
      temp = arg.Value;
      this->ExpandVariablesInString(temp);
      args.push_back(temp);
    } else {
      args.push_back(arg.Value);
    }
  }
  cm::optional<std::string> const& deferId = bt.Top().DeferId;

  std::ostringstream msg;
  switch (this->GetCMakeInstance()->GetTraceFormat()) {
    case cmake::TraceFormat::JSONv1: {
#ifndef CMAKE_BOOTSTRAP
      Json::Value val;
      Json::StreamWriterBuilder builder;
      builder["indentation"] = "";
      val["file"] = full_path;
      val["line"] = static_cast<Json::Value::Int64>(lff.Line());
      if (lff.Line() != lff.LineEnd()) {
        val["line_end"] = static_cast<Json::Value::Int64>(lff.LineEnd());
      }
      if (deferId) {
        val["defer"] = *deferId;
      }