message: `vcpkg ci` Use switch-case
diff: @@ -56,12 +56,13 @@ namespace vcpkg::Commands::CI
  try
  {
  - if (action.plan.plan_type == InstallPlanType::ALREADY_INSTALLED)
  + switch (action.plan.plan_type)
  {
  + case InstallPlanType::ALREADY_INSTALLED:
  results.back() = BuildResult::SUCCEEDED;
  System::println(System::Color::success, "Package %s is already installed", display_name);
  - }
  - else if (action.plan.plan_type == InstallPlanType::BUILD_AND_INSTALL)
  + break;
  + case InstallPlanType::BUILD_AND_INSTALL:
  {
  const BuildResult result = Commands::Build::build_package(action.plan.source_pgh.value_or_exit(VCPKG_LINE_INFO),
  action.spec,
  @@ -78,16 +79,17 @@ namespace vcpkg::Commands::CI
  const BinaryParagraph bpgh = Paragraphs::try_load_cached_package(paths, action.spec).value_or_exit(VCPKG_LINE_INFO);
  Install::install_package(paths, bpgh, &status_db);
  System::println(System::Color::success, "Package %s is installed", display_name);
  + break;
  }
  - else if (action.plan.plan_type == InstallPlanType::INSTALL)
  - {
  + case InstallPlanType::INSTALL:
  results.back() = BuildResult::SUCCEEDED;
  Install::install_package(paths, action.plan.binary_pgh.value_or_exit(VCPKG_LINE_INFO), &status_db);
  System::println(System::Color::success, "Package %s is installed from cache", display_name);
  - }
  - else
  + break;
  + default:
  Checks::unreachable(VCPKG_LINE_INFO);
  }
  + }
  catch (const std::exception& e)
  {
  System::println(System::Color::error, "Error: Could not install package %s: %s", action.spec.display_name(), e.what());
  