C++ DirAccess类代码示例

bool GodotSharpBuilds::copy_api_assembly(const String &p_src_dir, const String &p_dst_dir, const String &p_assembly_name) {

	String assembly_file = p_assembly_name + ".dll";
	String assembly_src = p_src_dir.plus_file(assembly_file);
	String assembly_dst = p_dst_dir.plus_file(assembly_file);

	if (!FileAccess::exists(assembly_dst) || FileAccess::get_modified_time(assembly_src) > FileAccess::get_modified_time(assembly_dst)) {
		DirAccess *da = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);

		String xml_file = p_assembly_name + ".xml";
		if (da->copy(p_src_dir.plus_file(xml_file), p_dst_dir.plus_file(xml_file)) != OK)
			WARN_PRINTS("Failed to copy " + xml_file);

		String pdb_file = p_assembly_name + ".pdb";
		if (da->copy(p_src_dir.plus_file(pdb_file), p_dst_dir.plus_file(pdb_file)) != OK)
			WARN_PRINTS("Failed to copy " + pdb_file);

		Error err = da->copy(assembly_src, assembly_dst);

		memdelete(da);

		if (err != OK) {
			show_build_error_dialog("Failed to copy " API_ASSEMBLY_NAME ".dll");
			return false;
		}
	}

	return true;
}

	bool _test_path() {

		error->set_text("");
		get_ok()->set_disabled(true);
		DirAccess *d = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
		if (project_path->get_text() != "" && d->change_dir(project_path->get_text())!=OK) {
			error->set_text(TTR("Invalid project path, the path must exist!"));
			memdelete(d);
			return false;
		}

		if (mode!=MODE_IMPORT) {

			if (d->file_exists("engine.cfg")) {

				error->set_text(TTR("Invalid project path, engine.cfg must not exist."));
				memdelete(d);
				return false;
			}

		} else {

			if (project_path->get_text() != "" && !d->file_exists("engine.cfg")) {

				error->set_text(TTR("Invalid project path, engine.cfg must exist."));
				memdelete(d);
				return false;
			}
		}

		memdelete(d);
		get_ok()->set_disabled(false);
		return true;

	}

EditorFileSystem::EditorFileSystem() {

	reimport_on_missing_imported_files = GLOBAL_DEF("editor/reimport_missing_imported_files", true);

	singleton = this;
	filesystem = memnew(EditorFileSystemDirectory); //like, empty
	filesystem->parent = NULL;

	thread = NULL;
	scanning = false;
	importing = false;
	use_threads = true;
	thread_sources = NULL;
	new_filesystem = NULL;

	abort_scan = false;
	scanning_changes = false;
	scanning_changes_done = false;
	ResourceSaver::set_save_callback(_resource_saved);

	DirAccess *da = DirAccess::create(DirAccess::ACCESS_RESOURCES);
	if (da->change_dir("res://.import") != OK) {
		da->make_dir("res://.import");
	}
	memdelete(da);

	scan_total = 0;
}

	NewProjectDialog() {


		VBoxContainer *vb = memnew( VBoxContainer );
		add_child(vb);
		set_child_rect(vb);

		Label* l = memnew(Label);
		l->set_text("Project Path:");
		vb->add_child(l);
		pp=l;

		project_path = memnew( LineEdit );
		MarginContainer *mc = memnew( MarginContainer );
		vb->add_child(mc);
		HBoxContainer *pphb = memnew( HBoxContainer );
		mc->add_child(pphb);
		pphb->add_child(project_path);
		project_path->set_h_size_flags(SIZE_EXPAND_FILL);

		Button* browse = memnew( Button );
		pphb->add_child(browse);
		browse->set_text("Browse");
		browse->connect("pressed", this,"_browse_path");

		l = memnew(Label);
		l->set_text("Project Name:");
		l->set_pos(Point2(5,50));
		vb->add_child(l);
		pn=l;

		project_name = memnew( LineEdit );
		mc = memnew( MarginContainer );
		vb->add_child(mc);
		mc->add_child(project_name);
		project_name->set_text("New Game Project");


		l = memnew(Label);
		l->set_text("That's a BINGO!");
		vb->add_child(l);
		error=l;
		l->add_color_override("font_color",Color(1,0.4,0.3,0.8));
		l->set_align(Label::ALIGN_CENTER);

		get_ok()->set_text("Create");
		DirAccess *d = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
		project_path->set_text(d->get_current_dir());
		memdelete(d);

		fdialog = memnew( FileDialog );
		add_child(fdialog);
		fdialog->set_access(FileDialog::ACCESS_FILESYSTEM);
		project_name->connect("text_changed", this,"_text_changed");
		project_path->connect("text_changed", this,"_path_text_changed");
		fdialog->connect("dir_selected", this,"_path_selected");
		fdialog->connect("file_selected", this,"_file_selected");
		set_hide_on_ok(false);
		import_mode=false;
	}

void EditorAssetLibraryItemDownload::_close() {

	DirAccess *da = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
	da->remove(download->get_download_file()); //clean up removed file
	memdelete(da);
	queue_delete();
}

void RotatedFileLogger::rotate_file() {
	close_file();

	if (FileAccess::exists(base_path)) {
		if (max_files > 1) {
			char timestamp[21];
			OS::Date date = OS::get_singleton()->get_date();
			OS::Time time = OS::get_singleton()->get_time();
			sprintf(timestamp, "-%04d-%02d-%02d-%02d-%02d-%02d", date.year, date.month, date.day, time.hour, time.min, time.sec);

			String backup_name = base_path.get_basename() + timestamp + "." + base_path.get_extension();

			DirAccess *da = DirAccess::open(base_path.get_base_dir());
			if (da) {
				da->copy(base_path, backup_name);
				memdelete(da);
			}
			clear_old_backups();
		}
	} else {
		DirAccess *da = DirAccess::create(DirAccess::ACCESS_USERDATA);
		if (da) {
			da->make_dir_recursive(base_path.get_base_dir());
			memdelete(da);
		}
	}

	file = FileAccess::open(base_path, FileAccess::WRITE);
}

bool DirAccess::exists(String p_dir) {

	DirAccess *da = DirAccess::create_for_path(p_dir);
	bool valid = da->change_dir(p_dir) == OK;
	memdelete(da);
	return valid;
}

	bool _test_path() {

		error->set_text("");
		get_ok()->set_disabled(true);
		DirAccess *d = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
		if (d->change_dir(project_path->get_text())!=OK) {
			error->set_text("Invalid Path for Project, Path Must Exist!");
			memdelete(d);
			return false;
		}

		if (!import_mode) {

			if (d->file_exists("engine.cfg")) {

				error->set_text("Invalid Project Path (engine.cfg must not exist).");
				memdelete(d);
				return false;
			}

		} else {

			if (!d->file_exists("engine.cfg")) {

				error->set_text("Invalid Project Path (engine.cfg must exist).");
				memdelete(d);
				return false;
			}
		}

		memdelete(d);
		get_ok()->set_disabled(false);
		return true;

	}

void ExportTemplateManager::_uninstall_template_confirm() {

	DirAccess *d = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
	Error err = d->change_dir(EditorSettings::get_singleton()->get_templates_dir());

	ERR_FAIL_COND(err != OK);

	err = d->change_dir(to_remove);

	ERR_FAIL_COND(err != OK);

	Vector<String> files;

	d->list_dir_begin();

	bool isdir;
	String c = d->get_next(&isdir);
	while (c != String()) {
		if (!isdir) {
			files.push_back(c);
		}
		c = d->get_next(&isdir);
	}

	d->list_dir_end();

	for (int i = 0; i < files.size(); i++) {
		d->remove(files[i]);
	}

	d->change_dir("..");
	d->remove(to_remove);

	_update_template_list();
}

void FindInFiles::_scan_dir(String path, PoolStringArray &out_folders) {

	DirAccess *dir = DirAccess::open(path);
	if (dir == NULL) {
		print_line("Cannot open directory! " + path);
		return;
	}

	dir->list_dir_begin();

	for (int i = 0; i < 1000; ++i) {
		String file = dir->get_next();

		if (file == "")
			break;

		// Ignore special dirs and hidden dirs (such as .git and .import)
		if (file == "." || file == ".." || file.begins_with("."))
			continue;

		if (dir->current_is_dir())
			out_folders.append(file);

		else {
			String file_ext = file.get_extension();
			if (_extension_filter.has(file_ext)) {
				_files_to_scan.push_back(path.plus_file(file));
			}
		}
	}
}

void OSIPhone::set_data_dir(String p_dir) {

	DirAccess *da = DirAccess::open(p_dir);

	data_dir = da->get_current_dir();
	printf("setting data dir to %ls from %ls\n", data_dir.c_str(), p_dir.c_str());
	memdelete(da);
};

void OSIPhone::set_data_dir(String p_dir) {

	DirAccess* da = DirAccess::open(p_dir);

	data_dir = da->get_current_dir();

	memdelete(da);
};

// scan localpath, add or update child nodes, call recursively for folder nodes
// localpath must be prefixed with Sync
bool Sync::scan(string* localpath, FileAccess* fa)
{
	if (localpath->size() < localdebris.size()
		|| memcmp(localpath->data(), localdebris.data(), localdebris.size())
		|| (localpath->size() != localdebris.size()
			&& memcmp(localpath->data() + localdebris.size(),
					  client->fsaccess->localseparator.data(),
					  client->fsaccess->localseparator.size())))
	{
		DirAccess* da;
		string localname, name;
		bool success;

		da = client->fsaccess->newdiraccess();

		// scan the dir, mark all items with a unique identifier
		if ((success = da->dopen(localpath, fa, false)))
		{
			size_t t = localpath->size();

			while (da->dnext(&localname))
			{
				name = localname;
				client->fsaccess->local2name(&name);

				// check if this record is to be ignored
				if (client->app->sync_syncable(name.c_str(), localpath, &localname))
				{
					if (t)
					{
						localpath->append(client->fsaccess->localseparator);
					}

					localpath->append(localname);

					// skip the sync's debris folder
					if ((localpath->size() < localdebris.size())
						|| memcmp(localpath->data(), localdebris.data(), localdebris.size())
						|| ((localpath->size() != localdebris.size())
							&& memcmp(localpath->data() + localdebris.size(),
									  client->fsaccess->localseparator.data(),
									  client->fsaccess->localseparator.size())))
					{
						// new or existing record: place scan result in notification queue
						dirnotify->notify(DirNotify::DIREVENTS, NULL, localpath->data(), localpath->size(), true);
					}

					localpath->resize(t);
				}
			}
		}

		delete da;

		return success;
	}
	else return false;
}

void PluginConfigDialog::_on_confirmed() {

	String path = "res://addons/" + subfolder_edit->get_text();

	if (!_edit_mode) {
		DirAccess *d = DirAccess::create(DirAccess::ACCESS_RESOURCES);
		if (!d || d->make_dir_recursive(path) != OK)
			return;
	}

	Ref<ConfigFile> cf = memnew(ConfigFile);
	cf->set_value("plugin", "name", name_edit->get_text());
	cf->set_value("plugin", "description", desc_edit->get_text());
	cf->set_value("plugin", "author", author_edit->get_text());
	cf->set_value("plugin", "version", version_edit->get_text());
	cf->set_value("plugin", "script", script_edit->get_text());

	cf->save(path.plus_file("plugin.cfg"));

	if (!_edit_mode) {
		int lang_idx = script_option_edit->get_selected();
		String lang_name = ScriptServer::get_language(lang_idx)->get_name();

		Ref<Script> script;

		// TODO Use script templates. Right now, this code won't add the 'tool' annotation to other languages.
		// TODO Better support script languages with named classes (has_named_classes).

		if (lang_name == GDScriptLanguage::get_singleton()->get_name()) {
			// Hard-coded GDScript template to keep usability until we use script templates.
			Ref<GDScript> gdscript = memnew(GDScript);
			gdscript->set_source_code(
					"tool\n"
					"extends EditorPlugin\n"
					"\n"
					"func _enter_tree():\n"
					"\tpass\n"
					"\n"
					"func _exit_tree():\n"
					"\tpass\n");
			String script_path = path.plus_file(script_edit->get_text());
			gdscript->set_path(script_path);
			ResourceSaver::save(script_path, gdscript);
			script = gdscript;
		} else {
			String script_path = path.plus_file(script_edit->get_text());
			String class_name = script_path.get_file().get_basename();
			script = ScriptServer::get_language(lang_idx)->get_template(class_name, "EditorPlugin");
			script->set_path(script_path);
			ResourceSaver::save(script_path, script);
		}

		emit_signal("plugin_ready", script.operator->(), active_edit->is_pressed() ? subfolder_edit->get_text() : "");
	} else {
		EditorNode::get_singleton()->get_project_settings()->update_plugins();
	}
	_clear_fields();
}

String DirAccess::get_full_path(const String &p_path, AccessType p_access) {

	DirAccess *d = DirAccess::create(p_access);
	if (!d)
		return p_path;

	d->change_dir(p_path);
	String full = d->get_current_dir();
	memdelete(d);
	return full;
}