C++ DirAccess::remove方法代码示例

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 EditorFileSystem::_delete_internal_files(String p_file) {
	if (FileAccess::exists(p_file + ".import")) {
		List<String> paths;
		ResourceFormatImporter::get_singleton()->get_internal_resource_path_list(p_file, &paths);
		DirAccess *da = DirAccess::create(DirAccess::ACCESS_RESOURCES);
		for (List<String>::Element *E = paths.front(); E; E = E->next()) {
			da->remove(E->get());
		}
		da->remove(p_file + ".import");
		memdelete(da);
	}
}

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::clear_old_backups() {
	int max_backups = max_files - 1; // -1 for the current file

	String basename = base_path.get_file().get_basename();
	String extension = "." + base_path.get_extension();

	DirAccess *da = DirAccess::open(base_path.get_base_dir());
	if (!da) {
		return;
	}

	da->list_dir_begin();
	String f = da->get_next();
	Set<String> backups;
	while (f != String()) {
		if (!da->current_is_dir() && f.begins_with(basename) && f.ends_with(extension) && f != base_path.get_file()) {
			backups.insert(f);
		}
		f = da->get_next();
	}
	da->list_dir_end();

	if (backups.size() > max_backups) {
		// since backups are appended with timestamp and Set iterates them in sorted order,
		// first backups are the oldest
		int to_delete = backups.size() - max_backups;
		for (Set<String>::Element *E = backups.front(); E && to_delete > 0; E = E->next(), --to_delete) {
			da->remove(E->get());
		}
	}

	memdelete(da);
}

void OrphanResourcesDialog::_delete_confirm() {

	DirAccess *da = DirAccess::create(DirAccess::ACCESS_RESOURCES);
	for (List<String>::Element *E=paths.front();E;E=E->next()) {

		da->remove(E->get());
		EditorFileSystem::get_singleton()->update_file(E->get());
	}
	memdelete(da);
	refresh();
}

void DependencyRemoveDialog::ok_pressed() {


	DirAccess *da = DirAccess::create(DirAccess::ACCESS_RESOURCES);
	for (Map<String,TreeItem*>::Element *E=files.front();E;E=E->next()) {

		da->remove(E->key());
		EditorFileSystem::get_singleton()->update_file(E->key());
	}
	memdelete(da);

}

void DependencyRemoveDialog::ok_pressed() {

	DirAccess *da = DirAccess::create(DirAccess::ACCESS_RESOURCES);
	for (Map<String, TreeItem *>::Element *E = files.front(); E; E = E->next()) {
		if (da->dir_exists(E->key())) {
			String path = OS::get_singleton()->get_resource_dir() + E->key().replace_first("res://", "/");
			OS::get_singleton()->move_path_to_trash(path);
			EditorFileSystem::get_singleton()->scan();
		} else {
			if (ResourceCache::has(E->key())) {
				Resource *res = ResourceCache::get(E->key());
				res->set_path(""); //clear reference to path
			}
			da->remove(E->key());
			EditorFileSystem::get_singleton()->update_file(E->key());
		}
	}
	memdelete(da);
}

Vector<uint8_t> EditorSceneExportPlugin::custom_export(String& p_path,const Ref<EditorExportPlatform> &p_platform) {

	if (!EditorImportExport::get_singleton()->get_convert_text_scenes()) {
		return Vector<uint8_t>();
	}


	String extension = p_path.extension();

	//step 1 check if scene

	if (extension=="xml" || extension=="xres") {

		String type = ResourceLoader::get_resource_type(p_path);

		if (type!="PackedScene")
			return Vector<uint8_t>();

	} else if (extension!="tscn" && extension!="xscn") {
		return Vector<uint8_t>();
	}

	//step 2 check if cached

	uint64_t sd=0;
	String smd5;
	String gp = Globals::get_singleton()->globalize_path(p_path);
	String md5=gp.md5_text();
	String tmp_path = EditorSettings::get_singleton()->get_settings_path().plus_file("tmp/");

	bool valid=false;
	{
		//if existing, make sure it's valid
		FileAccessRef f = FileAccess::open(tmp_path+"scnexp-"+md5+".txt",FileAccess::READ);
		if (f) {

			uint64_t d = f->get_line().strip_edges().to_int64();
			sd = FileAccess::get_modified_time(p_path);

			if (d==sd) {
				valid=true;
			} else {
				String cmd5 = f->get_line().strip_edges();
				smd5 = FileAccess::get_md5(p_path);
				if (cmd5==smd5) {
					valid=true;
				}
			}


		}
	}

	if (!valid) {
		//cache failed, convert
		DirAccess *da = DirAccess::create(DirAccess::ACCESS_RESOURCES);

		String copy = p_path+".convert."+extension;

		// a copy will allow loading the internal resources without conflicting with opened scenes
		da->copy(p_path,copy);

		//@todo for tscn use something more efficient

		Ref<PackedScene> copyres =  ResourceLoader::load(copy,"PackedScene");

		da->remove(copy);

		memdelete(da);

		ERR_FAIL_COND_V(!copyres.is_valid(),Vector<uint8_t>());

		Error err = ResourceSaver::save(tmp_path+"scnexp-"+md5+".scn",copyres);

		copyres=Ref<PackedScene>();

		ERR_FAIL_COND_V(err!=OK,Vector<uint8_t>());

		FileAccessRef f = FileAccess::open(tmp_path+"scnexp-"+md5+".txt",FileAccess::WRITE);

		if (sd==0)
			sd = FileAccess::get_modified_time(p_path);
		if (smd5==String())
			smd5 = FileAccess::get_md5(p_path);

		f->store_line(String::num(sd));
		f->store_line(smd5);
		f->store_line(gp); //source path for reference
	}


	Vector<uint8_t> ret = FileAccess::get_file_as_array(tmp_path+"scnexp-"+md5+".scn");

	p_path+=".converted.scn";

	return ret;

}

//.........这里部分代码省略.........


	uint64_t tag_end = f->get_pos();


	while(true) {



		Error err = VariantParser::parse_tag(&stream,lines,error_text,next_tag,&rp);

		if (err!=OK) {
			if (fw) {
				memdelete(fw);
			}
			error=ERR_FILE_CORRUPT;
			ERR_FAIL_V(error);
		}

		if (next_tag.name!="ext_resource") {

			//nothing was done
			if (!fw)
				return OK;

			break;


		} else {

			if (!fw) {

				fw=FileAccess::open(p_path+".depren",FileAccess::WRITE);
				if (is_scene) {
					fw->store_line("[gd_scene load_steps="+itos(resources_total)+" format="+itos(FORMAT_VERSION)+"]\n");
				} else {
					fw->store_line("[gd_resource type=\""+res_type+"\" load_steps="+itos(resources_total)+" format="+itos(FORMAT_VERSION)+"]\n");
				}
			}

			if (!next_tag.fields.has("path") || !next_tag.fields.has("id") || !next_tag.fields.has("type")) {
				memdelete(fw);
				error=ERR_FILE_CORRUPT;
				ERR_FAIL_V(error);
			}

			String path = next_tag.fields["path"];
			int index = next_tag.fields["id"];
			String type = next_tag.fields["type"];


			bool relative=false;
			if (!path.begins_with("res://")) {
				path=base_path.plus_file(path).simplify_path();
				relative=true;
			}

			if (p_map.has(path)) {
				String np=p_map[path];
				path=np;
			}

			if (relative) {
				//restore relative
				path=base_path.path_to_file(path);
			}

			fw->store_line("[ext_resource path=\""+path+"\" type=\""+type+"\" id="+itos(index)+"]");

			tag_end = f->get_pos();

		}

	}

	f->seek(tag_end);

	uint8_t c=f->get_8();
	while(!f->eof_reached()) {
		fw->store_8(c);
		c=f->get_8();
	}
	f->close();

	bool all_ok = fw->get_error()==OK;

	memdelete(fw);

	if (!all_ok) {
		return ERR_CANT_CREATE;
	}

	DirAccess *da = DirAccess::create(DirAccess::ACCESS_RESOURCES);
	da->remove(p_path);
	da->rename(p_path+".depren",p_path);
	memdelete(da);

	return OK;

}

//.........这里部分代码省略.........
				String np=p_map[path];
				path=np;
			}

			if (relative) {
				//restore relative
				path=base_path.path_to_file(path);
			}

			tag->args["path"]=path;
			tag->args["index"]=index;
			tag->args["type"]=type;

		} else {

			done=true;
		}

		String tagt="\t<";
		if (exit)
			tagt+="/";
		tagt+=tag->name;

		for(List<String>::Element *E=order.front();E;E=E->next()) {
			tagt+=" "+E->get()+"=\""+tag->args[E->get()]+"\"";
		}
		tagt+=">";
		fw->store_line(tagt);
		if (done)
			break;
		close_tag("ext_resource");
		fw->store_line("\t</ext_resource>");

	}


	if (old_format) {
		if (fw)
			memdelete(fw);

		DirAccess *da = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
		da->remove(p_path+".depren");
		memdelete(da);
		//fuck it, use the old approach;

		WARN_PRINT(("This file is old, so it can't refactor dependencies, opening and resaving: "+p_path).utf8().get_data());

		Error err;
		FileAccess *f2 = FileAccess::open(p_path,FileAccess::READ,&err);
		if (err!=OK) {
			ERR_FAIL_COND_V(err!=OK,ERR_FILE_CANT_OPEN);
		}

		Ref<ResourceInteractiveLoaderText> ria = memnew( ResourceInteractiveLoaderText );
		ria->local_path=Globals::get_singleton()->localize_path(p_path);
		ria->res_path=ria->local_path;
		ria->remaps=p_map;
	//	ria->set_local_path( Globals::get_singleton()->localize_path(p_path) );
		ria->open(f2);

		err = ria->poll();

		while(err==OK) {
			err=ria->poll();
		}

		ERR_FAIL_COND_V(err!=ERR_FILE_EOF,ERR_FILE_CORRUPT);
		RES res = ria->get_resource();
		ERR_FAIL_COND_V(!res.is_valid(),ERR_FILE_CORRUPT);

		return ResourceFormatSaverText::singleton->save(p_path,res);
	}

	if (!fw) {

		return OK; //nothing to rename, do nothing
	}

	uint8_t c=f->get_8();
	while(!f->eof_reached()) {
		fw->store_8(c);
		c=f->get_8();
	}

	bool all_ok = fw->get_error()==OK;

	memdelete(fw);

	if (!all_ok) {
		return ERR_CANT_CREATE;
	}

	DirAccess *da = DirAccess::create(DirAccess::ACCESS_RESOURCES);
	da->remove(p_path);
	da->rename(p_path+".depren",p_path);
	memdelete(da);
#endif
	return OK;

}