Method get_diff

utility/diff_result.cpp:636–693

}

Ref<DiffResult> DiffResult::get_diff(Dictionary changed_files_dict) {
	Ref<DiffResult> result;
	result.instantiate();
	Array files = changed_files_dict["files"];
	for (const auto &d : files) {
		Dictionary dict = d;
		if (dict.size() == 0) {
			continue;
		}
		String change_type = dict["change"];
		String path = dict["path"];
		auto old_content = dict["old_content"];
		auto new_content = dict["new_content"];
		auto structured_changes = dict["scene_changes"];
		if (change_type == "modified") {
			// check both the old and the new content to see what the file sizes are
			auto faold = FileAccess::open(old_content, FileAccess::READ);
			auto fanew = FileAccess::open(new_content, FileAccess::READ);
			if (faold.is_null() || fanew.is_null()) {
				continue;
			}
			auto old_size = faold->get_length();
			auto new_size = fanew->get_length();
			if (old_size < 4 && new_size < 4) {
				ERR_FAIL_COND_V(old_size < 4 && new_size < 4, result);
			}
			if (old_size < 4) {
				change_type = "added";
			} else if (new_size < 4) {
				change_type = "deleted";
			} else {
				auto diff = FileDiffResult::get_file_diff(old_content, new_content, structured_changes);
				if (diff.is_null()) {
					continue;
				}
				result->set_file_diff(path, diff);
			}
		}

		if (change_type == "added" || change_type == "deleted") {
			Ref<FileDiffResult> file_diff;
			file_diff.instantiate();
			file_diff->set_type(change_type);
			Error error = OK;
			if (change_type == "added") {
				file_diff->set_res_new(ResourceLoader::load(new_content, "", ResourceFormatLoader::CACHE_MODE_IGNORE_DEEP, &error));
			} else {
				file_diff->set_res_old(ResourceLoader::load(old_content, "", ResourceFormatLoader::CACHE_MODE_IGNORE_DEEP, &error));
			}
			if (error != OK) {
				print_error("Failed to load resource at path " + path);
				continue;
			}
			result->set_file_diff(path, file_diff);
		}
	}
	return result;
}