Method set_uid

compat/resource_compat_binary.cpp:2768–2882

}

Error ResourceFormatSaverCompatBinaryInstance::set_uid(const String &p_path, ResourceUID::ID p_uid) {
	Ref<FileAccess> f = FileAccess::open(p_path, FileAccess::READ);
	ERR_FAIL_COND_V_MSG(f.is_null(), ERR_CANT_OPEN, vformat("Cannot open file '%s'.", p_path));

	Ref<FileAccess> fw;

	local_path = p_path.get_base_dir();

	uint8_t header[4];
	f->get_buffer(header, 4);
	if (header[0] == 'R' && header[1] == 'S' && header[2] == 'C' && header[3] == 'C') {
		// Compressed.
		Ref<FileAccessCompressed> fac;
		fac.instantiate();
		Error err = fac->open_after_magic(f);
		ERR_FAIL_COND_V_MSG(err != OK, err, vformat("Cannot open file '%s'.", p_path));
		f = fac;

		Ref<FileAccessCompressed> facw;
		facw.instantiate();
		facw->configure("RSCC");
		err = facw->open_internal(p_path + ".uidren", FileAccess::WRITE);
		ERR_FAIL_COND_V_MSG(err, ERR_FILE_CORRUPT, vformat("Cannot create file '%s.uidren'.", p_path));

		fw = facw;

	} else if (header[0] != 'R' || header[1] != 'S' || header[2] != 'R' || header[3] != 'C') {
		// Not a binary resource.
		return ERR_FILE_UNRECOGNIZED;
	} else {
		fw = FileAccess::open(p_path + ".uidren", FileAccess::WRITE);
		ERR_FAIL_COND_V_MSG(fw.is_null(), ERR_CANT_CREATE, vformat("Cannot create file '%s.uidren'.", p_path));

		uint8_t magich[4] = { 'R', 'S', 'R', 'C' };
		fw->store_buffer(magich, 4);
	}

	big_endian = f->get_32();
	bool use_real64 = f->get_32();
	f->set_big_endian(big_endian != 0); //read big endian if saved as big endian
#ifdef BIG_ENDIAN_ENABLED
	fw->store_32(!big_endian);
#else
	fw->store_32(big_endian);
#endif
	fw->set_big_endian(big_endian != 0);
	fw->store_32(use_real64); //use real64

	uint32_t major = f->get_32();
	uint32_t minor = f->get_32();
	uint32_t format = f->get_32();

	if (format <= FORMAT_VERSION_NO_NODEPATH_PROPERTY) {
		fw.unref();

		{
			Ref<DirAccess> da = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
			da->remove(p_path + ".uidren");