Add CI\CD step to prepare cache file in ahead of time so user does not need to wait

src/dev-utils/generate_system_cache.cpp

@@ -0,0 +1,86 @@
+#include "libslic3r/PresetBundle.hpp"
+#include "libslic3r/PresetBundleCache.hpp"
+#include "libslic3r/Utils.hpp"
+
+#include <boost/filesystem.hpp>
+#include <boost/log/trivial.hpp>
+#include <boost/program_options.hpp>
+#include <iostream>
+
+using namespace Slic3r;
+namespace fs = boost::filesystem;
+namespace po = boost::program_options;
+
+int main(int argc, char* argv[])
+{
+    po::options_description desc("OrcaSlicer System Cache Generator\nUsage");
+    // clang-format off
+    desc.add_options()
+        ("help,h", "Show help")
+#ifdef __APPLE__
+        ("path,p", po::value<std::string>()->default_value("../../../../../../../resources/profiles"), "Path to profiles directory")
+#else
+        ("path,p", po::value<std::string>()->default_value("../../../resources/profiles"), "Path to profiles directory")
+#endif
+        ("log_level,l", po::value<int>()->default_value(2), "Log level (0=trace, 2=info, 4=error)");
+    // clang-format on
+
+    po::variables_map vm;
+    try {
+        po::store(po::parse_command_line(argc, argv, desc), vm);
+        if (vm.count("help")) { std::cout << desc << "\n"; return 0; }
+        po::notify(vm);
+    } catch (const po::error& e) {
+        std::cerr << "Error: " << e.what() << "\n" << desc << "\n";
+        return 1;
+    }
+
+    const std::string profiles_path = vm["path"].as<std::string>();
+    const int         log_level     = vm["log_level"].as<int>();
+
+    if (!fs::exists(profiles_path) || !fs::is_directory(profiles_path)) {
+        std::cerr << "Error: '" << profiles_path << "' is not a valid directory\n";
+        return 1;
+    }
+
+    set_logging_level(log_level);
+    // In validation_mode, load_system_presets_from_json uses data_dir() directly
+    // (no /system/ suffix), so point data_dir at the profiles directory.
+    set_data_dir(profiles_path);
+    set_resources_dir(fs::path(profiles_path).parent_path().make_preferred().string());
+
+    // load_presets creates user preset dirs under data_dir().
+    const fs::path user_dir = fs::path(data_dir()) / PRESET_USER_DIR;
+    if (!fs::exists(user_dir))
+        fs::create_directories(user_dir);
+
+    AppConfig app_config;
+    app_config.set("preset_folder", "default");
+
+    auto preset_bundle = std::make_unique<PresetBundle>();
+    preset_bundle->set_is_validation_mode(true);
+    preset_bundle->set_default_suppressed(true);
+
+    std::cout << "Loading system presets from: " << profiles_path << "\n";
+
+    try {
+        preset_bundle->load_presets(app_config, ForwardCompatibilitySubstitutionRule::EnableSilent);
+    } catch (const std::exception& ex) {
+        std::cerr << "Failed to load presets: " << ex.what() << "\n";
+        return 1;
+    }
+
+    const std::string cache_path =
+        (fs::path(profiles_path) / "system_presets_cache.cache").make_preferred().string();
+
+    PresetBundleCache::SystemPresetsCache cache;
+    cache.capture(*preset_bundle, profiles_path);
+    cache.save(cache_path);
+
+    std::cout << "Cache written: " << cache_path << "\n"
+              << "  Vendor profiles:  " << cache.vendor_profiles.size()   << "\n"
+              << "  Print presets:    " << cache.print_presets.size()     << "\n"
+              << "  Filament presets: " << cache.filament_presets.size()  << "\n"
+              << "  Printer presets:  " << cache.printer_presets.size()   << "\n";
+    return 0;
+}