Function cbm_rename_replace

src/foundation/compat_fs.c:1036–1052

rename() with overwrite semantics on every platform: POSIX rename already * replaces atomically; Windows rename fails with EEXIST when the target * exists, so use write-through MoveFileExW(MOVEFILE_REPLACE_EXISTING) there * (wide paths — raw MoveFileExA would re-mangle non-ASCII cache paths). */

 * exists, so use write-through MoveFileExW(MOVEFILE_REPLACE_EXISTING) there
 * (wide paths — raw MoveFileExA would re-mangle non-ASCII cache paths). */
int cbm_rename_replace(const char *src, const char *dst) {
#ifdef _WIN32
    wchar_t *wsrc = cbm_path_to_wide(src);
    wchar_t *wdst = cbm_path_to_wide(dst);
    int ret = CBM_NOT_FOUND;
    if (wsrc && wdst) {
        ret = MoveFileExW(wsrc, wdst, MOVEFILE_REPLACE_EXISTING | MOVEFILE_WRITE_THROUGH)
                  ? 0
                  : CBM_NOT_FOUND;
    }
    free(wsrc);
    free(wdst);
    return ret;
#else
    return rename(src, dst);
#endif
}

int cbm_rename_noreplace(const char *src, const char *dst) {
    if (!src || !dst || !src[0] || !dst[0]) {