install: backup and restore HorizonOC config.ini on OC pack update

- Copy sd:/config/horizon-oc/config.ini to sd:/.omninx_oc_update before
  update cleanup/copy; restore after Hekate step, then remove the scratch dir.
- Only when INSTALL_MODE_UPDATE and VARIANT_OC.

Made-with: Cursor

source/backup.c

@@ -101,3 +101,34 @@ int cleanup_backup(void) {
     }
     return FR_OK;
 }
+
+int backup_horizon_oc_config_for_oc_update(void) {
+    if (!path_exists(HORIZON_OC_CONFIG_PATH))
+        return FR_OK;
+
+    int res = f_mkdir(HORIZON_OC_UPDATE_BACKUP_DIR);
+    if (res != FR_OK && res != FR_EXIST)
+        return res;
+
+    return file_copy(HORIZON_OC_CONFIG_PATH, HORIZON_OC_UPDATE_BACKUP_INI);
+}
+
+int restore_horizon_oc_config_after_oc_update(void) {
+    if (!path_exists(HORIZON_OC_UPDATE_BACKUP_INI))
+        return FR_OK;
+
+    int res = f_mkdir("sd:/config");
+    if (res != FR_OK && res != FR_EXIST)
+        return res;
+    res = f_mkdir("sd:/config/horizon-oc");
+    if (res != FR_OK && res != FR_EXIST)
+        return res;
+
+    return file_copy(HORIZON_OC_UPDATE_BACKUP_INI, HORIZON_OC_CONFIG_PATH);
+}
+
+int cleanup_horizon_oc_update_backup(void) {
+    if (!path_exists(HORIZON_OC_UPDATE_BACKUP_DIR))
+        return FR_OK;
+    return folder_delete(HORIZON_OC_UPDATE_BACKUP_DIR);
+}

source/backup.h

@@ -8,6 +8,12 @@
 
 #define TEMP_BACKUP_PATH "sd:/temp_backup"
 
+/** Live HorizonOC settings (Overclock tool). */
+#define HORIZON_OC_CONFIG_PATH "sd:/config/horizon-oc/config.ini"
+/** Scratch dir during OC-variant update only; removed after successful restore. */
+#define HORIZON_OC_UPDATE_BACKUP_DIR "sd:/.omninx_oc_update"
+#define HORIZON_OC_UPDATE_BACKUP_INI HORIZON_OC_UPDATE_BACKUP_DIR "/config.ini"
+
 // Backup user data (DBI, Tinfoil, prod.keys) before clean install
 int backup_user_data(void);
 
@@ -16,3 +22,10 @@ int restore_user_data(void);
 
 // Clean up temporary backup directory
 int cleanup_backup(void);
+
+// HorizonOC: backup config.ini before OC pack update (update mode only); no-op if missing
+int backup_horizon_oc_config_for_oc_update(void);
+// Restore after file copy; no-op if no backup from this run
+int restore_horizon_oc_config_after_oc_update(void);
+// Delete sd:/.omninx_oc_update after successful restore
+int cleanup_horizon_oc_update_backup(void);

source/install.c

@@ -3,6 +3,7 @@
  */
 
 #include "install.h"
+#include "backup.h"
 #include "fs.h"
 #include "screenshot.h"
 #include "version.h"
@@ -872,6 +873,21 @@ int perform_installation(omninx_variant_t pack_variant, install_mode_t mode) {
     int res;
     
     if (mode == INSTALL_MODE_UPDATE) {
+        if (pack_variant == VARIANT_OC) {
+            bool had_horizon_cfg = install_path_exists(HORIZON_OC_CONFIG_PATH);
+            install_set_color(COLOR_YELLOW);
+            gfx_printf("HorizonOC: Sichere config.ini...\n");
+            install_set_color(COLOR_WHITE);
+            res = backup_horizon_oc_config_for_oc_update();
+            if (res != FR_OK)
+                return res;
+            if (had_horizon_cfg) {
+                install_set_color(COLOR_GREEN);
+                gfx_printf("  [OK] Bestehende config.ini gesichert.\n");
+                install_set_color(COLOR_WHITE);
+            }
+        }
+
         // Update mode: selective cleanup then install
         install_set_color(COLOR_YELLOW);
         gfx_printf("Schritt 1: Bereinigung...\n");
@@ -889,6 +905,26 @@ int perform_installation(omninx_variant_t pack_variant, install_mode_t mode) {
 
         install_hekate_8gb_post_copy();
 
+        if (pack_variant == VARIANT_OC) {
+            bool had_horizon_bak = install_path_exists(HORIZON_OC_UPDATE_BACKUP_INI);
+            install_check_and_clear_screen_if_needed();
+            install_set_color(COLOR_YELLOW);
+            gfx_printf("HorizonOC: Stelle config.ini wieder her...\n");
+            install_set_color(COLOR_WHITE);
+            res = restore_horizon_oc_config_after_oc_update();
+            if (res != FR_OK)
+                return res;
+            install_set_color(COLOR_GREEN);
+            if (had_horizon_bak)
+                gfx_printf("  [OK] Deine HorizonOC-Einstellungen wurden wiederhergestellt.\n");
+            else
+                gfx_printf("  [OK] Keine fruehere config.ini — Standard aus dem Paket bleibt.\n");
+            install_set_color(COLOR_WHITE);
+            res = cleanup_horizon_oc_update_backup();
+            if (res != FR_OK)
+                return res;
+        }
+
         install_check_and_clear_screen_if_needed();
         // Remove staging directory (installed pack)
         res = cleanup_staging_directory(pack_variant);