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[Unix] Replace symlink target, not the link itself when using backup save mode.

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Pāvels Nadtočajevs 2025-08-07 09:11:09 +03:00
parent 65eb664352
commit 8b4e34cda5
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GPG key ID: 8413210218EF35D2
3 changed files with 29 additions and 7 deletions
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24
drivers/unix/file_access_unix.cpp
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@ -117,7 +117,29 @@ Error FileAccessUnix::open_internal(const String &p_path, int p_mode_flags) {
#endif
if (is_backup_save_enabled() && (p_mode_flags == WRITE)) {
save_path = path;
// Set save path to the symlink target, not the link itself.
String link;
bool is_link = false;
{
CharString cs = path.utf8();
struct stat lst = {};
if (lstat(cs.get_data(), &lst) == 0) {
is_link = S_ISLNK(lst.st_mode);
}
if (is_link) {
char buf[PATH_MAX];
memset(buf, 0, PATH_MAX);
ssize_t len = readlink(cs.get_data(), buf, sizeof(buf));
if (len > 0) {
link.append_utf8(buf, len);
}
if (!link.is_absolute_path()) {
link = path.get_base_dir().path_join(link);
}
}
}
save_path = is_link ? link : path;
// Create a temporary file in the same directory as the target file.
path = path + "-XXXXXX";
CharString cs = path.utf8();