Method SetCacheArgs

Source/cmake.cxx:573–783

Parse the args

// Parse the args
bool cmake::SetCacheArgs(std::vector<std::string> const& args)
{
  static std::string const kCMAKE_POLICY_VERSION_MINIMUM =
    "CMAKE_POLICY_VERSION_MINIMUM";
  if (!this->State->GetInitializedCacheValue(kCMAKE_POLICY_VERSION_MINIMUM)) {
    cm::optional<std::string> policyVersion =
      cmSystemTools::GetEnvVar(kCMAKE_POLICY_VERSION_MINIMUM);
    if (policyVersion && !policyVersion->empty()) {
      this->AddCacheEntry(
        kCMAKE_POLICY_VERSION_MINIMUM, *policyVersion,
        "Override policy version for cmake_minimum_required calls.",
        cmStateEnums::STRING);
      this->State->SetCacheEntryProperty(kCMAKE_POLICY_VERSION_MINIMUM,
                                         "ADVANCED", "1");
    }
  }

  auto DefineLambda = [](std::string const& entry, cmake* state) -> bool {
    std::string var;
    std::string value;
    cmStateEnums::CacheEntryType type = cmStateEnums::UNINITIALIZED;
    if (cmState::ParseCacheEntry(entry, var, value, type)) {
#ifndef CMAKE_BOOTSTRAP
      state->UnprocessedPresetVariables.erase(var);
#endif
      state->ProcessCacheArg(var, value, type);
    } else {
      cmSystemTools::Error(cmStrCat("Parse error in command line argument: ",
                                    entry, "\n Should be: VAR:type=value\n"));
      return false;
    }
    return true;
  };

  auto WarningLambda = [](cm::string_view entry, cmake* state) -> bool {
    bool foundNo = false;
    bool foundError = false;

    if (cmHasLiteralPrefix(entry, "no-")) {
      foundNo = true;
      entry.remove_prefix(3);
    }

    if (cmHasLiteralPrefix(entry, "error=")) {
      foundError = true;
      entry.remove_prefix(6);
    }

    if (entry.empty()) {
      cmSystemTools::Error("No warning name provided.");
      return false;
    }

    std::string const name = std::string(entry);
    if (!foundNo && !foundError) {
      // -W<name>
      state->DiagLevels[name] = std::max(state->DiagLevels[name], DIAG_WARN);
    } else if (foundNo && !foundError) {