Method RunCommand

Source/cmCTest.cxx:3261–3372

}

bool cmCTest::RunCommand(std::vector<std::string> const& args,
                         std::string* stdOut, std::string* stdErr, int* retVal,
                         char const* dir, cmDuration timeout,
                         Encoding encoding)
{
  std::vector<char const*> argv;
  argv.reserve(args.size() + 1);
  for (std::string const& a : args) {
    argv.push_back(a.c_str());
  }
  argv.push_back(nullptr);

  stdOut->clear();
  stdErr->clear();

  cmUVProcessChainBuilder builder;
  builder.AddCommand(args)
    .SetBuiltinStream(cmUVProcessChainBuilder::Stream_OUTPUT)
    .SetBuiltinStream(cmUVProcessChainBuilder::Stream_ERROR);
  if (dir) {
    builder.SetWorkingDirectory(dir);
  }
  auto chain = builder.Start();

  cm::uv_timer_ptr timer;
  bool timedOut = false;
  if (timeout.count()) {
    timer.init(chain.GetLoop(), &timedOut);
    timer.start(
      [](uv_timer_t* t) {
        auto* timedOutPtr = static_cast<bool*>(t->data);
        *timedOutPtr = true;
      },
      static_cast<uint64_t>(timeout.count() * 1000.0), 0,
      cm::uv_update_time::yes);
  }

  std::vector<char> tempOutput;
  bool outFinished = false;
  std::vector<char> tempError;
  bool errFinished = false;
  cmProcessOutput processOutput(encoding);
  auto startRead = [this, &processOutput](
                     uv_stream_t* stream, std::vector<char>& temp,
                     bool& finished) -> std::unique_ptr<cmUVStreamReadHandle> {
    return cmUVStreamRead(
      stream,
      [this, &temp, &processOutput](std::vector<char> data) {
        cm::append(temp, data);
        if (this->Impl->ExtraVerbose) {
          std::string strdata;
          processOutput.DecodeText(data.data(), data.size(), strdata);
          cmSystemTools::Stdout(strdata);
        }
      },
      [&finished]() { finished = true; });
  };
  auto outputHandle = startRead(chain.OutputStream(), tempOutput, outFinished);