From c0741beda3752be9110f3ca7025dd5de34e7221c Mon Sep 17 00:00:00 2001
From: niklascfw <service@niklascfw.de>
Date: Sun, 14 Jun 2026 17:31:46 +0200
Subject: [PATCH] Preserve CyberFoil across clean install backup/restore.

Back up cyberfoil.nro, config.json, and remotes/ when sd:/switch/CyberFoil exists, then restore them after the wipe.
---
 source/backup.c               | 58 +++++++++++++++++++++++++++++++++++
 source/backup.h               | 12 +++++++-
 source/deletion_lists_clean.h |  2 +-
 source/install_clean.c        |  4 +--
 4 files changed, 72 insertions(+), 4 deletions(-)

diff --git a/source/backup.c b/source/backup.c
index 438768e..83948d6 100644
--- a/source/backup.c
+++ b/source/backup.c
@@ -39,6 +39,35 @@ int backup_user_data(void) {
             return res;
         }
     }
+
+    // Backup CyberFoil (nro, config, remotes) if installed
+    if (path_exists(CYBERFOIL_DIR)) {
+        res = f_mkdir(TEMP_BACKUP_CYBERFOIL);
+        if (res != FR_OK && res != FR_EXIST) {
+            return res;
+        }
+
+        if (path_exists(CYBERFOIL_NRO)) {
+            res = file_copy(CYBERFOIL_NRO, TEMP_BACKUP_CYBERFOIL_NRO);
+            if (res != FR_OK) {
+                return res;
+            }
+        }
+
+        if (path_exists(CYBERFOIL_CONFIG)) {
+            res = file_copy(CYBERFOIL_CONFIG, TEMP_BACKUP_CYBERFOIL_CONFIG);
+            if (res != FR_OK) {
+                return res;
+            }
+        }
+
+        if (path_exists(CYBERFOIL_REMOTES)) {
+            res = folder_copy(CYBERFOIL_REMOTES, TEMP_BACKUP_CYBERFOIL);
+            if (res != FR_OK) {
+                return res;
+            }
+        }
+    }
     
     return FR_OK;
 }
@@ -72,6 +101,35 @@ int restore_user_data(void) {
             return res;
         }
     }
+
+    // Restore CyberFoil if backed up
+    if (path_exists(TEMP_BACKUP_CYBERFOIL)) {
+        res = f_mkdir(CYBERFOIL_DIR);
+        if (res != FR_OK && res != FR_EXIST) {
+            return res;
+        }
+
+        if (path_exists(TEMP_BACKUP_CYBERFOIL_NRO)) {
+            res = file_copy(TEMP_BACKUP_CYBERFOIL_NRO, CYBERFOIL_NRO);
+            if (res != FR_OK) {
+                return res;
+            }
+        }
+
+        if (path_exists(TEMP_BACKUP_CYBERFOIL_CONFIG)) {
+            res = file_copy(TEMP_BACKUP_CYBERFOIL_CONFIG, CYBERFOIL_CONFIG);
+            if (res != FR_OK) {
+                return res;
+            }
+        }
+
+        if (path_exists(TEMP_BACKUP_CYBERFOIL_REMOTES)) {
+            res = folder_copy(TEMP_BACKUP_CYBERFOIL_REMOTES, CYBERFOIL_DIR);
+            if (res != FR_OK) {
+                return res;
+            }
+        }
+    }
     
     return FR_OK;
 }
diff --git a/source/backup.h b/source/backup.h
index fe7113a..f5e295d 100644
--- a/source/backup.h
+++ b/source/backup.h
@@ -11,13 +11,23 @@
 #define DBI_CONFIG_PATH "sd:/switch/DBI/dbi.config"
 #define TEMP_BACKUP_DBI_CONFIG TEMP_BACKUP_PATH "/dbi.config"
 
+/** CyberFoil homebrew; preserved across clean install (nro, config, remotes only). */
+#define CYBERFOIL_DIR "sd:/switch/CyberFoil"
+#define CYBERFOIL_NRO CYBERFOIL_DIR "/cyberfoil.nro"
+#define CYBERFOIL_CONFIG CYBERFOIL_DIR "/config.json"
+#define CYBERFOIL_REMOTES CYBERFOIL_DIR "/remotes"
+#define TEMP_BACKUP_CYBERFOIL TEMP_BACKUP_PATH "/CyberFoil"
+#define TEMP_BACKUP_CYBERFOIL_NRO TEMP_BACKUP_CYBERFOIL "/cyberfoil.nro"
+#define TEMP_BACKUP_CYBERFOIL_CONFIG TEMP_BACKUP_CYBERFOIL "/config.json"
+#define TEMP_BACKUP_CYBERFOIL_REMOTES TEMP_BACKUP_CYBERFOIL "/remotes"
+
 /** 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 dbi.config, prod.keys) before clean install
+// Backup user data (CyberFoil, DBI dbi.config, prod.keys) before clean install
 int backup_user_data(void);
 
 // Restore user data after clean install
diff --git a/source/deletion_lists_clean.h b/source/deletion_lists_clean.h
index 3b5df94..4caae8a 100644
--- a/source/deletion_lists_clean.h
+++ b/source/deletion_lists_clean.h
@@ -2,7 +2,7 @@
  * OmniNX Installer - Deletion Lists for Clean Install Mode
  * Deletion policy aligned with NiklasCFW pack clean install (TegraExplorer script):
  * full sd:/atmosphere, bootloader/config subsets, sd:/switch, root + misc, then
- * post-restore paths (e.g. tinfoil db). DBI/prod.keys backup is in backup.c.
+ * post-restore paths (e.g. tinfoil db). CyberFoil/DBI/prod.keys backup is in backup.c.
  */
 
 #pragma once
diff --git a/source/install_clean.c b/source/install_clean.c
index 30341ce..55a7ea9 100644
--- a/source/install_clean.c
+++ b/source/install_clean.c
@@ -34,7 +34,7 @@
 // Clean mode: Backup user data
 int clean_mode_backup(void) {
     set_color(COLOR_CYAN);
-    gfx_printf("  Sichere: DBI (dbi.config), prod.keys\n");
+    gfx_printf("  Sichere: CyberFoil, DBI (dbi.config), prod.keys\n");
     set_color(COLOR_WHITE);
     int res = backup_user_data();
     if (res == FR_OK) {
@@ -95,7 +95,7 @@ int clean_mode_wipe(void) {
 // Clean mode: Restore user data
 int clean_mode_restore(void) {
     set_color(COLOR_CYAN);
-    gfx_printf("  Stelle wieder her: DBI (dbi.config), prod.keys\n");
+    gfx_printf("  Stelle wieder her: CyberFoil, DBI (dbi.config), prod.keys\n");
     set_color(COLOR_WHITE);
     int res = restore_user_data();
     if (res == FR_OK) {