Method UpdateImpl

Source/CTest/cmCTestGIT.cxx:234–297

}

bool cmCTestGIT::UpdateImpl()
{
  if (!this->UpdateInternal()) {
    return false;
  }

  std::string top_dir = this->FindTopDir();
  std::string git = this->CommandLineTool;
  std::string recursive = "--recursive";
  std::string sync_recursive = "--recursive";

  // Git < 1.6.5 did not support submodule --recursive
  bool support_recursive = true;
  if (this->GetGitVersion() < cmCTestGITVersion(1, 6, 5, 0)) {
    support_recursive = false;
    // No need to require >= 1.6.5 if there are no submodules.
    if (cmSystemTools::FileExists(top_dir + "/.gitmodules")) {
      this->Log << "Git < 1.6.5 cannot update submodules recursively\n";
    }
  }

  // Git < 1.8.1 did not support sync --recursive
  bool support_sync_recursive = true;
  if (this->GetGitVersion() < cmCTestGITVersion(1, 8, 1, 0)) {
    support_sync_recursive = false;
    // No need to require >= 1.8.1 if there are no submodules.
    if (cmSystemTools::FileExists(top_dir + "/.gitmodules")) {
      this->Log << "Git < 1.8.1 cannot synchronize submodules recursively\n";
    }
  }

  OutputLogger submodule_out(this->Log, "submodule-out> ");
  OutputLogger submodule_err(this->Log, "submodule-err> ");

  bool ret;

  if (this->Makefile->IsOn("CTEST_GIT_INIT_SUBMODULES")) {
    std::vector<std::string> git_submodule_init = { git, "submodule", "init" };
    ret = this->RunChild(git_submodule_init, &submodule_out, &submodule_err,
                         top_dir);

    if (!ret) {
      return false;
    }
  }

  std::vector<std::string> git_submodule_sync = { git, "submodule", "sync" };
  if (support_sync_recursive) {
    git_submodule_sync.push_back(sync_recursive);
  }
  ret = this->RunChild(git_submodule_sync, &submodule_out, &submodule_err,
                       top_dir);

  if (!ret) {
    return false;
  }

  std::vector<std::string> git_submodule = { git, "submodule", "update" };