Importing newer config when starting the application:

Cache directory is newly deleted before it is imported from the newer
config location.

Linux specific: When asking for certificate directory, perform import
of configs first.

src/libslic3r/PresetBundle.cpp

@@ -212,17 +212,27 @@ static void copy_dir(const boost::filesystem::path& from_dir, const boost::files
 // Import newer configuration from alternate PrusaSlicer configuration directory.
 // AppConfig from the alternate location is already loaded.
 // User profiles are being merged (old files are not being deleted),
-// while old system bundles are being deleted before newer are copied.
+// while old vendors and cache folders are being deleted before newer are copied.
 void PresetBundle::import_newer_configs(const std::string& from)
 {
     boost::filesystem::path data_dir = boost::filesystem::path(Slic3r::data_dir());
     // Clean-up vendors from the target directory, as the existing vendors will not be referenced
     // by the copied PrusaSlicer.ini
-    boost::filesystem::remove_all(data_dir / "vendor");
+    try {
+        boost::filesystem::remove_all(data_dir / "cache");
+    } catch (const std::exception &ex) {
+        BOOST_LOG_TRIVIAL(error) << "Error deleting old cache " << (data_dir / "cache").string();
+    }
+    try {
+        boost::filesystem::remove_all(data_dir / "vendor");
+    } catch (const std::exception &ex) {
+        BOOST_LOG_TRIVIAL(error) << "Error deleting old vendors " << (data_dir / "vendor").string();
+    }
     // list of searched paths based on current directory system in setup_directories()
     // do not copy cache and snapshots
     boost::filesystem::path from_data_dir = boost::filesystem::path(from);
     std::initializer_list<boost::filesystem::path> from_dirs= {
+        from_data_dir / "cache",
         from_data_dir / "vendor",
         from_data_dir / "shapes",
 #ifdef SLIC3R_PROFILE_USE_PRESETS_SUBDIR

src/slic3r/GUI/GUI_App.cpp

@@ -1078,27 +1078,6 @@ bool GUI_App::on_init_inner()
 
 //     Slic3r::debugf "wxWidgets version %s, Wx version %s\n", wxVERSION_STRING, wxVERSION;
 
-
-    if (is_editor()) {
-        std::string msg = Http::tls_global_init();
-        std::string ssl_cert_store = app_config->get("tls_accepted_cert_store_location");
-        bool ssl_accept = app_config->get("tls_cert_store_accepted") == "yes" && ssl_cert_store == Http::tls_system_cert_store();
-
-        if (!msg.empty() && !ssl_accept) {
-            RichMessageDialog
-                dlg(nullptr,
-                    wxString::Format(_L("%s\nDo you want to continue?"), msg),
-                    "PrusaSlicer", wxICON_QUESTION | wxYES_NO);
-            dlg.ShowCheckBox(_L("Remember my choice"));
-            if (dlg.ShowModal() != wxID_YES) return false;
-
-            app_config->set("tls_cert_store_accepted",
-                dlg.IsCheckBoxChecked() ? "yes" : "no");
-            app_config->set("tls_accepted_cert_store_location",
-                dlg.IsCheckBoxChecked() ? Http::tls_system_cert_store() : "");
-        }
-    }
-
     // !!! Initialization of UI settings as a language, application color mode, fonts... have to be done before first UI action.
     // Like here, before the show InfoDialog in check_older_app_config()
 
@@ -1136,6 +1115,26 @@ bool GUI_App::on_init_inner()
         NppDarkMode::SetSystemMenuForApp(new_sys_menu_enabled);
 #endif
 
+    if (is_editor()) {
+        std::string msg = Http::tls_global_init();
+        std::string ssl_cert_store = app_config->get("tls_accepted_cert_store_location");
+        bool ssl_accept = app_config->get("tls_cert_store_accepted") == "yes" && ssl_cert_store == Http::tls_system_cert_store();
+
+        if (!msg.empty() && !ssl_accept) {
+            RichMessageDialog
+                dlg(nullptr,
+                    wxString::Format(_L("%s\nDo you want to continue?"), msg),
+                    "PrusaSlicer", wxICON_QUESTION | wxYES_NO);
+            dlg.ShowCheckBox(_L("Remember my choice"));
+            if (dlg.ShowModal() != wxID_YES) return false;
+
+            app_config->set("tls_cert_store_accepted",
+                dlg.IsCheckBoxChecked() ? "yes" : "no");
+            app_config->set("tls_accepted_cert_store_location",
+                dlg.IsCheckBoxChecked() ? Http::tls_system_cert_store() : "");
+        }
+    }
+
     SplashScreen* scrn = nullptr;
     if (app_config->get("show_splash_screen") == "1") {
         // make a bitmap with dark grey banner on the left side