From 587c3134fb05630c827ada678a92f5dc3a456920 Mon Sep 17 00:00:00 2001
From: GlitchedCode922 <126592994+GlitchedCode922@users.noreply.github.com>
Date: Fri, 26 Sep 2025 18:07:17 +0300
Subject: [PATCH] Fix permission handling for backup on write files

---
 drivers/unix/file_access_unix.cpp | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/unix/file_access_unix.cpp b/drivers/unix/file_access_unix.cpp
index f4e44f83118..d818f41efed 100644
--- a/drivers/unix/file_access_unix.cpp
+++ b/drivers/unix/file_access_unix.cpp
@@ -148,7 +148,15 @@ Error FileAccessUnix::open_internal(const String &p_path, int p_mode_flags) {
 			last_error = ERR_FILE_CANT_OPEN;
 			return last_error;
 		}
-		fchmod(fd, 0644);
+
+		struct stat file_stat = {};
+		int error = stat(save_path.utf8().get_data(), &file_stat);
+		if (!error) {
+			fchmod(fd, file_stat.st_mode & 0xFFF); // Mask to remove file type
+		} else {
+			fchmod(fd, 0644); // Fallback permissions
+		}
+
 		path = String::utf8(cs.ptr());
 
 		f = fdopen(fd, mode_string);