enhance(backend): bundle backend using Rolldown (#17068)

* enhance(backend): bundle backend using rolldown * fix * fix [ci skip] * remove unused build script * fix * enhance: 起動からlistenまでかかる時間を減らす (MisskeyIO#1410) * ✌️ * fix * update rolldown * fix(backend): extract static error classes to avoid rolldown design:paramtypes omission * update rolldown * Revert "fix(backend): extract static error classes to avoid rolldown design:paramtypes omission" This reverts commit e2243c9dc3. * fix * perf: avoid generating sourcemap in production * fix * fix * fix * fix paths * fix * fix * fix * fix * fix * enhance: バックエンドの開発サーバー制御をrolldown側で行うように * remove nodemon * Update Changelog * tweak config * fix * fix * fix * clean up --------- Co-authored-by: あわわわとーにゅ <17376330+u1-liquid@users.noreply.github.com> Co-authored-by: bab <mashirohira@gmail.com>
2026-05-13 17:35:40 +02:00 · 2026-04-16 12:44:50 +09:00
parent 024f8bb102
commit 37bfcb604f
26 changed files with 504 additions and 349 deletions
--- a/packages/backend/build.js
+++ b/packages/backend/build.js
@@ -1,121 +0,0 @@
-import fs from 'node:fs';
-import { fileURLToPath } from 'node:url';
-import { dirname, join } from 'node:path';
-import { build } from 'esbuild';
-import { swcPlugin } from 'esbuild-plugin-swc';
-
-const _filename = fileURLToPath(import.meta.url);
-const _dirname = dirname(_filename);
-const _package = JSON.parse(fs.readFileSync(_dirname + '/package.json', 'utf-8'));
-
-const resolveTsPathsPlugin = {
-	name: 'resolve-ts-paths',
-	setup(build) {
-		build.onResolve({ filter: /^\.{1,2}\/.*\.js$/ }, (args) => {
-			if (args.importer) {
-				const absPath = join(args.resolveDir, args.path);
-				const tsPath = absPath.slice(0, -3) + '.ts';
-				if (fs.existsSync(tsPath)) return { path: tsPath };
-				const tsxPath = absPath.slice(0, -3) + '.tsx';
-				if (fs.existsSync(tsxPath)) return { path: tsxPath };
-			}
-		});
-	},
-};
-
-const externalIpaddrPlugin = {
-	name: 'external-ipaddr',
-	setup(build) {
-		build.onResolve({ filter: /^ipaddr\.js$/ }, (args) => {
-			return { path: args.path, external: true };
-		});
-	},
-};
-
-/** @type {import('esbuild').BuildOptions} */
-const options = {
-	entryPoints: ['./src/boot/entry.ts'],
-	minify: true,
-	keepNames: true,
-	bundle: true,
-	outdir: './built/boot',
-	target: 'node22',
-	platform: 'node',
-	format: 'esm',
-	sourcemap: 'linked',
-	packages: 'external',
-	banner: {
-		js: 'import { createRequire as topLevelCreateRequire } from "module";' +
-			'import ___url___ from "url";' +
-			'const require = topLevelCreateRequire(import.meta.url);' +
-			'const __filename = ___url___.fileURLToPath(import.meta.url);' +
-			'const __dirname = ___url___.fileURLToPath(new URL(".", import.meta.url));',
-	},
-	plugins: [
-		externalIpaddrPlugin,
-		resolveTsPathsPlugin,
-		swcPlugin({
-			jsc: {
-				parser: {
-					syntax: 'typescript',
-					decorators: true,
-					dynamicImport: true,
-				},
-				transform: {
-					legacyDecorator: true,
-					decoratorMetadata: true,
-				},
-				experimental: {
-					keepImportAssertions: true,
-				},
-				baseUrl: join(_dirname, 'src'),
-				paths: {
-					'@/*': ['*'],
-				},
-				target: 'esnext',
-				keepClassNames: true,
-			},
-		}),
-		externalIpaddrPlugin,
-	],
-	// external: [
-	// 	'slacc-*',
-	// 	'class-transformer',
-	// 	'class-validator',
-	// 	'@sentry/*',
-	// 	'@nestjs/websockets/socket-module',
-	// 	'@nestjs/microservices/microservices-module',
-	// 	'@nestjs/microservices',
-	// 	'@napi-rs/canvas-win32-x64-msvc',
-	// 	'mock-aws-s3',
-	// 	'aws-sdk',
-	// 	'nock',
-	// 	'sharp',
-	// 	'jsdom',
-	// 	're2',
-	// 	'@napi-rs/canvas',
-	// ],
-};
-
-const args = process.argv.slice(2).map(arg => arg.toLowerCase());
-
-if (!args.includes('--no-clean')) {
-	fs.rmSync('./built', { recursive: true, force: true });
-}
-
-await buildSrc();
-
-async function buildSrc() {
-	console.log(`[${_package.name}] start building...`);
-
-	await build(options)
-		.then(() => {
-			console.log(`[${_package.name}] build succeeded.`);
-		})
-		.catch((err) => {
-			process.stderr.write(err.stderr || err.message || err);
-			process.exit(1);
-		});
-
-	console.log(`[${_package.name}] finish building.`);
-}
--- a/packages/backend/ormconfig.js
+++ b/packages/backend/ormconfig.js
@@ -1,6 +1,6 @@
 import { DataSource } from 'typeorm';
-import { loadConfig } from './src-js/config.js';
-import { entities } from './src-js/postgres.js';
+import { loadConfig } from './built/config.js';
+import { entities } from './built/postgres.js';

 const isConcurrentIndexMigrationEnabled = process.env.MISSKEY_MIGRATION_CREATE_INDEX_CONCURRENTLY === '1';

--- a/packages/backend/package.json
+++ b/packages/backend/package.json
@@ -7,21 +7,22 @@
 		"node": "^22.15.0 || ^24.10.0"
 	},
 	"scripts": {
-		"start": "pnpm compile-config && node ./built/boot/entry.js",
-		"start:inspect": "pnpm compile-config && node --inspect ./built/boot/entry.js",
-		"start:test": "cross-env NODE_ENV=test pnpm compile-config && cross-env NODE_ENV=test node ./built/boot/entry.js",
+		"start": "pnpm compile-config && node ./built/entry.js",
+		"start:inspect": "pnpm compile-config && node --inspect ./built/entry.js",
+		"start:test": "cross-env NODE_ENV=test pnpm compile-config && cross-env NODE_ENV=test node ./built/entry.js",
 		"migrate": "pnpm compile-config && pnpm typeorm migration:run -d ormconfig.js",
 		"revert": "pnpm compile-config && pnpm typeorm migration:revert -d ormconfig.js",
-		"cli": "pnpm compile-config && node ./src-js/boot/cli.js",
+		"cli": "pnpm compile-config && node ./built/cli.js",
 		"check:connect": "pnpm compile-config && node ./scripts/check_connect.js",
 		"compile-config": "node ./scripts/compile_config.js",
-		"build": "swc src -d src-js -D --strip-leading-paths && node ./build.js",
-		"build:test": "swc test-server -d built-test -D --config-file test-server/.swcrc --strip-leading-paths",
+		"build": "rolldown -c",
+		"build:unit": "rolldown -c --sourcemap",
+		"build:e2e": "swc src -d src-js -D --strip-leading-paths && swc test-server -d built-test -D --config-file test-server/.swcrc --strip-leading-paths",
 		"watch:swc": "swc src -d built -D -w --strip-leading-paths",
 		"build:tsc": "tsgo -p tsconfig.json && tsc-alias -p tsconfig.json",
 		"watch": "pnpm compile-config && node ./scripts/watch.mjs",
 		"restart": "pnpm build && pnpm start",
-		"dev": "pnpm compile-config && node ./scripts/dev.mjs",
+		"dev": "pnpm compile-config && rolldown -c --watch",
 		"typecheck": "tsgo --noEmit && tsgo -p test --noEmit && tsgo -p test-federation --noEmit",
 		"eslint": "eslint --quiet \"{src,test-federation}/**/*.ts\"",
 		"lint": "pnpm typecheck && pnpm eslint",
@@ -31,11 +32,11 @@
 		"jest-and-coverage": "cross-env NODE_ENV=test pnpm compile-config && cross-env NODE_ENV=test node ./jest.js --coverage --forceExit --config jest.config.unit.cjs",
 		"jest-and-coverage:e2e": "cross-env NODE_ENV=test pnpm compile-config && cross-env NODE_ENV=test node ./jest.js --coverage --forceExit --config jest.config.e2e.cjs",
 		"jest-clear": "cross-env NODE_ENV=test pnpm compile-config && cross-env NODE_ENV=test node ./jest.js --clearCache",
-		"test": "pnpm jest",
-		"test:e2e": "pnpm build && pnpm build:test && pnpm jest:e2e",
+		"test": "pnpm build:unit && pnpm jest",
+		"test:e2e": "pnpm build:e2e && pnpm jest:e2e",
 		"test:fed": "pnpm jest:fed",
-		"test-and-coverage": "pnpm jest-and-coverage",
-		"test-and-coverage:e2e": "pnpm build && pnpm build:test && pnpm jest-and-coverage:e2e",
+		"test-and-coverage": "pnpm build:unit && pnpm jest-and-coverage",
+		"test-and-coverage:e2e": "pnpm build:e2e && pnpm jest-and-coverage:e2e",
 		"check-migrations": "node scripts/check_migrations_clean.js",
 		"generate-api-json": "pnpm compile-config && node ./scripts/generate_api_json.js"
 	},
@@ -179,6 +180,7 @@
 		"@jest/globals": "29.7.0",
 		"@kitajs/ts-html-plugin": "4.1.4",
 		"@nestjs/platform-express": "11.1.18",
+		"@rollup/plugin-esm-shim": "0.1.8",
 		"@sentry/vue": "10.47.0",
 		"@simplewebauthn/types": "12.0.0",
 		"@swc/jest": "0.2.39",
@@ -217,15 +219,14 @@
 		"aws-sdk-client-mock": "4.1.0",
 		"cbor": "10.0.12",
 		"cross-env": "10.1.0",
-		"esbuild-plugin-swc": "1.0.1",
 		"eslint-plugin-import": "2.32.0",
 		"execa": "9.6.1",
 		"fkill": "10.0.3",
 		"jest": "29.7.0",
 		"jest-mock": "29.7.0",
 		"js-yaml": "4.1.1",
-		"nodemon": "3.1.14",
 		"pid-port": "2.1.1",
+		"rolldown": "1.0.0-rc.15",
 		"simple-oauth2": "5.1.0",
 		"supertest": "7.2.2",
 		"vite": "8.0.7"
--- a/packages/backend/rolldown.config.ts
+++ b/packages/backend/rolldown.config.ts
@@ -0,0 +1,107 @@
+import { defineConfig } from 'rolldown';
+import type { Plugin, ExternalOption } from 'rolldown';
+import { execa, execaNode } from 'execa';
+import type { ResultPromise } from 'execa';
+import esmShim from '@rollup/plugin-esm-shim';
+
+/**
+ * Watchモード時にバックエンドの起動・停止制御を行うプラグイン
+ */
+function backendDevServerPlugin(): Plugin {
+	let backendProcess: ResultPromise | null = null;
+
+	async function runBuildAssets() {
+		await execa('pnpm', ['run', 'build-assets'], {
+			cwd: '../../',
+			stdout: process.stdout,
+			stderr: process.stderr,
+		});
+	}
+
+	async function killBackendProcess() {
+		if (backendProcess) {
+			backendProcess.catch(() => {}); // backendProcess.kill()によって発生する例外を無視するためにcatch()を呼び出す
+			backendProcess.kill();
+			await new Promise(resolve => backendProcess!.on('exit', resolve));
+			backendProcess = null;
+		}
+	}
+
+	return {
+		name: 'backend-dev-server',
+		async closeBundle() {
+			await runBuildAssets();
+			if (backendProcess) {
+				await killBackendProcess();
+			}
+			backendProcess = execaNode('./built/entry.js', {
+				stdout: process.stdout,
+				stderr: process.stderr,
+				env: {
+					NODE_ENV: 'development',
+				},
+			});
+		},
+		async watchChange() {
+			if (backendProcess) {
+				await killBackendProcess();
+				await runBuildAssets();
+			}
+		},
+	};
+}
+
+export default defineConfig((args) => {
+	const isWatchMode = args.watch != null && args.watch !== 'false';
+
+	// 通常のビルド時にexternalとするモジュール
+	const externalModules: ExternalOption = [
+		/^slacc-.*/,
+		'class-transformer',
+		'class-validator',
+		/^@sentry\/.*/,
+		/^@sentry-internal\/.*/,
+		'@nestjs/websockets/socket-module',
+		'@nestjs/microservices/microservices-module',
+		'@nestjs/microservices',
+		/^@napi-rs\/.*/,
+		'mock-aws-s3',
+		'aws-sdk',
+		'nock',
+		'sharp',
+		'jsdom',
+		're2',
+		'ipaddr.js',
+		'oauth2orize',
+	];
+
+	return {
+		input: [
+			'./src/boot/entry.ts',
+			'./src/boot/cli.ts',
+			'./src/config.ts',
+			'./src/postgres.ts',
+			'./src/server/api/openapi/gen-spec.ts',
+		],
+		platform: 'node',
+		tsconfig: true,
+		plugins: [
+			esmShim(),
+			(isWatchMode ? backendDevServerPlugin() : undefined),
+		],
+		output: {
+			keepNames: true,
+			minify: !isWatchMode,
+			sourcemap: isWatchMode,
+			dir: './built',
+			cleanDir: !isWatchMode,
+			format: 'esm',
+		},
+		watch: {
+			include: ['src/**/*.{ts,js,mjs,cjs,tsx,json}'],
+			clearScreen: false,
+		},
+		// ビルドの高速化のために、watchモードのときは外部モジュールは全てバンドルしないようにする
+		external: isWatchMode ? [/node_modules/] : externalModules,
+	};
+});
--- a/packages/backend/scripts/check_connect.js
+++ b/packages/backend/scripts/check_connect.js
@@ -4,8 +4,8 @@
 */

 import Redis from 'ioredis';
-import { loadConfig } from '../src-js/config.js';
-import { createPostgresDataSource } from '../src-js/postgres.js';
+import { loadConfig } from '../built/config.js';
+import { createPostgresDataSource } from '../built/postgres.js';

 const config = loadConfig();

--- a/packages/backend/scripts/dev.mjs
+++ b/packages/backend/scripts/dev.mjs
@@ -1,63 +0,0 @@
-/*
- * SPDX-FileCopyrightText: syuilo and misskey-project
- * SPDX-License-Identifier: AGPL-3.0-only
- */
-
-import { execa, execaNode } from 'execa';
-
-/** @type {import('execa').ExecaChildProcess | undefined} */
-let backendProcess;
-
-async function execBuildAssets() {
-	await execa('pnpm', ['run', 'build-assets'], {
-		cwd: '../../',
-		stdout: process.stdout,
-		stderr: process.stderr,
-	})
-}
-
-function execStart() {
-	// pnpm run start を呼び出したいが、windowsだとプロセスグループ単位でのkillが出来ずゾンビプロセス化するので
-	// 上記と同等の動きをするコマンドで子・孫プロセスを作らないようにしたい
-	backendProcess = execaNode('./built/boot/entry.js', [], {
-		stdout: process.stdout,
-		stderr: process.stderr,
-		env: {
-			'NODE_ENV': 'development',
-		},
-	});
-}
-
-async function killProc() {
-	if (backendProcess) {
-		backendProcess.catch(() => {}); // backendProcess.kill()によって発生する例外を無視するためにcatch()を呼び出す
-		backendProcess.kill();
-		await new Promise(resolve => backendProcess.on('exit', resolve));
-		backendProcess = undefined;
-	}
-}
-
-(async () => {
-	execaNode(
-		'./node_modules/nodemon/bin/nodemon.js',
-		[
-			'-w', 'src',
-			'-e', 'ts,js,mjs,cjs,tsx,json,pug',
-			'--exec', 'pnpm', 'run', 'build',
-		],
-		{
-			stdio: [process.stdin, process.stdout, process.stderr, 'ipc'],
-			serialization: "json",
-		})
-		.on('message', async (message) => {
-			if (message.type === 'exit') {
-				// かならずbuild->build-assetsの順番で呼び出したいので、
-				// 少々トリッキーだがnodemonからのexitイベントを利用してbuild-assets->startを行う。
-				// pnpm restartをbuildが終わる前にbuild-assetsが動いてしまうので、バラバラに呼び出す必要がある
-
-				await killProc();
-				await execBuildAssets();
-				execStart();
-			}
-		})
-})();
--- a/packages/backend/scripts/generate_api_json.js
+++ b/packages/backend/scripts/generate_api_json.js
@@ -19,10 +19,10 @@ async function main() {
 	}

 	/** @type {import('../src/config.js')} */
-	const { loadConfig } = await import('../src-js/config.js');
+	const { loadConfig } = await import('../built/config.js');

 	/** @type {import('../src/server/api/openapi/gen-spec.js')} */
-	const { genOpenapiSpec } = await import('../src-js/server/api/openapi/gen-spec.js');
+	const { genOpenapiSpec } = await import('../built/gen-spec.js');

 	const config = loadConfig();
 	const spec = genOpenapiSpec(config, true);
--- a/packages/backend/scripts/measure-memory.mjs
+++ b/packages/backend/scripts/measure-memory.mjs
@@ -55,7 +55,7 @@ async function getMemoryUsage(pid) {

 async function measureMemory() {
 	// Start the Misskey backend server using fork to enable IPC
-	const serverProcess = fork(join(__dirname, '../built/boot/entry.js'), ['expose-gc'], {
+	const serverProcess = fork(join(__dirname, '../built/entry.js'), ['expose-gc'], {
 		cwd: join(__dirname, '..'),
 		env: {
 			...process.env,
--- a/packages/backend/src/boot/common.ts
+++ b/packages/backend/src/boot/common.ts
@@ -4,16 +4,12 @@
 */

 import { NestFactory } from '@nestjs/core';
-import { ChartManagementService } from '@/core/chart/ChartManagementService.js';
-import { QueueProcessorService } from '@/queue/QueueProcessorService.js';
 import { NestLogger } from '@/NestLogger.js';
-import { QueueProcessorModule } from '@/queue/QueueProcessorModule.js';
-import { QueueStatsService } from '@/daemons/QueueStatsService.js';
-import { ServerStatsService } from '@/daemons/ServerStatsService.js';
-import { ServerService } from '@/server/ServerService.js';
-import { MainModule } from '@/MainModule.js';

 export async function server() {
+	const { MainModule } = await import('../MainModule.js');
+	const { ServerService } = await import('../server/ServerService.js');
+
 	const app = await NestFactory.createApplicationContext(MainModule, {
 		logger: new NestLogger(),
 	});
@@ -22,6 +18,10 @@ export async function server() {
 	await serverService.launch();

 	if (process.env.NODE_ENV !== 'test') {
+		const { ChartManagementService } = await import('../core/chart/ChartManagementService.js');
+		const { QueueStatsService } = await import('../daemons/QueueStatsService.js');
+		const { ServerStatsService } = await import('../daemons/ServerStatsService.js');
+
 		app.get(ChartManagementService).start();
 		app.get(QueueStatsService).start();
 		app.get(ServerStatsService).start();
@@ -31,6 +31,10 @@ export async function server() {
 }

 export async function jobQueue() {
+	const { QueueProcessorModule } = await import('../queue/QueueProcessorModule.js');
+	const { QueueProcessorService } = await import('../queue/QueueProcessorService.js');
+	const { ChartManagementService } = await import('../core/chart/ChartManagementService.js');
+
 	const jobQueue = await NestFactory.createApplicationContext(QueueProcessorModule, {
 		logger: new NestLogger(),
 	});
--- a/packages/backend/src/boot/entry.ts
+++ b/packages/backend/src/boot/entry.ts
@@ -13,8 +13,6 @@ import chalk from 'chalk';
 import Xev from 'xev';
 import Logger from '@/logger.js';
 import { envOption } from '../env.js';
-import { masterMain } from './master.js';
-import { workerMain } from './worker.js';
 import { readyRef } from './ready.js';

 import 'reflect-metadata';
@@ -71,10 +69,12 @@ process.on('exit', code => {
 if (!envOption.disableClustering) {
 	if (cluster.isPrimary) {
 		logger.info(`Start main process... pid: ${process.pid}`);
+		const { masterMain } = await import('./master.js');
 		await masterMain();
 		ev.mount();
 	} else if (cluster.isWorker) {
 		logger.info(`Start worker process... pid: ${process.pid}`);
+		const { workerMain } = await import('./worker.js');
 		await workerMain();
 	} else {
 		throw new Error('Unknown process type');
@@ -82,6 +82,7 @@ if (!envOption.disableClustering) {
 } else {
 	// 非clusterの場合はMasterのみが起動するため、Workerの処理は行わない(cluster.isWorker === trueの状態でこのブロックに来ることはない)
 	logger.info(`Start main process... pid: ${process.pid}`);
+	const { masterMain } = await import('./master.js');
 	await masterMain();
 	ev.mount();
 }
--- a/packages/backend/src/config.ts
+++ b/packages/backend/src/config.ts
@@ -190,6 +190,7 @@ export type Config = {
 	userAgent: string;
 	frontendManifestExists: boolean;
 	frontendEmbedManifestExists: boolean;
+	rootDir: string;
 	mediaProxy: string;
 	externalMediaProxyEnabled: boolean;
 	videoThumbnailGenerator: string | null;
@@ -330,6 +331,7 @@ export function loadConfig(): Config {
 		userAgent: `Misskey/${version} (${config.url})`,
 		frontendManifestExists: frontendManifestExists,
 		frontendEmbedManifestExists: frontendEmbedManifestExists,
+		rootDir,
 		perChannelMaxNoteCacheCount: config.perChannelMaxNoteCacheCount ?? 1000,
 		perUserNotificationsMaxCount: config.perUserNotificationsMaxCount ?? 500,
 		deactivateAntennaThreshold: config.deactivateAntennaThreshold ?? (1000 * 60 * 60 * 24 * 7),
--- a/packages/backend/src/core/AiService.ts
+++ b/packages/backend/src/core/AiService.ts
@@ -4,27 +4,31 @@
 */

 import * as fs from 'node:fs';
-import { fileURLToPath } from 'node:url';
-import { dirname } from 'node:path';
-import { Injectable } from '@nestjs/common';
+import { pathToFileURL } from 'node:url';
+import { resolve } from 'node:path';
+import { Injectable, Inject } from '@nestjs/common';
 import { Mutex } from 'async-mutex';
 import fetch from 'node-fetch';
+import { DI } from '@/di-symbols.js';
 import { bindThis } from '@/decorators.js';
+import type { Config } from '@/config.js';
 import type { NSFWJS, PredictionType } from 'nsfwjs/core';

-const _filename = fileURLToPath(import.meta.url);
-const _dirname = dirname(_filename);
-
 const REQUIRED_CPU_FLAGS_X64 = ['avx2', 'fma'];
 let isSupportedCpu: undefined | boolean = undefined;

@Injectable()
 export class AiService {
+	private readonly modelDir: string;
 	private model: NSFWJS;
 	private modelLoadMutex: Mutex = new Mutex();

 	constructor(
+		@Inject(DI.config)
+		private config: Config,
 	) {
+		const md = resolve(this.config.rootDir, 'packages/backend/nsfw-model');
+		this.modelDir = md.endsWith('/') ? md : md + '/';
 	}

 	@bindThis
@@ -46,7 +50,7 @@ export class AiService {
 				const nsfw = await import('nsfwjs/core');
 				await this.modelLoadMutex.runExclusive(async () => {
 					if (this.model == null) {
-						this.model = await nsfw.load(`file://${_dirname}/../../nsfw-model/`, { size: 299 });
+						this.model = await nsfw.load(pathToFileURL(this.modelDir).toString(), { size: 299 });
 					}
 				});
 			}
--- a/packages/backend/src/core/InternalStorageService.ts
+++ b/packages/backend/src/core/InternalStorageService.ts
@@ -5,29 +5,25 @@

 import * as fs from 'node:fs';
 import * as Path from 'node:path';
-import { fileURLToPath } from 'node:url';
-import { dirname } from 'node:path';
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { Config } from '@/config.js';
 import { bindThis } from '@/decorators.js';

-const _filename = fileURLToPath(import.meta.url);
-const _dirname = dirname(_filename);
-
-const path = Path.resolve(_dirname, '../../../../files');
-
@Injectable()
 export class InternalStorageService {
+	private readonly path: string;
+
 	constructor(
 		@Inject(DI.config)
 		private config: Config,
 	) {
+		this.path = Path.resolve(this.config.rootDir, 'files');
 	}

 	@bindThis
 	public resolvePath(key: string) {
-		return Path.resolve(path, key);
+		return Path.resolve(this.path, key);
 	}

 	@bindThis
@@ -37,14 +33,14 @@ export class InternalStorageService {

 	@bindThis
 	public saveFromPath(key: string, srcPath: string) {
-		fs.mkdirSync(path, { recursive: true });
+		fs.mkdirSync(this.path, { recursive: true });
 		fs.copyFileSync(srcPath, this.resolvePath(key));
 		return `${this.config.url}/files/${key}`;
 	}

 	@bindThis
 	public saveFromBuffer(key: string, data: Buffer) {
-		fs.mkdirSync(path, { recursive: true });
+		fs.mkdirSync(this.path, { recursive: true });
 		fs.writeFileSync(this.resolvePath(key), data);
 		return `${this.config.url}/files/${key}`;
 	}
--- a/packages/backend/src/server/FileServerService.ts
+++ b/packages/backend/src/server/FileServerService.ts
@@ -4,8 +4,7 @@
 */

 import * as fs from 'node:fs';
-import { fileURLToPath } from 'node:url';
-import { dirname } from 'node:path';
+import { resolve } from 'node:path';
 import { Inject, Injectable } from '@nestjs/common';
 import type { Config } from '@/config.js';
 import type { DriveFilesRepository } from '@/models/_.js';
@@ -25,11 +24,6 @@ import { FileServerFileResolver } from './file/FileServerFileResolver.js';
 import { FileServerProxyHandler } from './file/FileServerProxyHandler.js';
 import type { FastifyInstance, FastifyRequest, FastifyReply, FastifyPluginOptions } from 'fastify';

-const _filename = fileURLToPath(import.meta.url);
-const _dirname = dirname(_filename);
-
-const assets = `${_dirname}/../../server/file/assets/`;
-
@Injectable()
 export class FileServerService {
 	private logger: Logger;
@@ -37,6 +31,8 @@ export class FileServerService {
 	private proxyHandler: FileServerProxyHandler;
 	private fileResolver: FileServerFileResolver;

+	private readonly assets: string;
+
 	constructor(
 		@Inject(DI.config)
 		private config: Config,
@@ -52,6 +48,7 @@ export class FileServerService {
 		private loggerService: LoggerService,
 	) {
 		this.logger = this.loggerService.getLogger('server', 'gray');
+		this.assets = resolve(this.config.rootDir, 'packages/backend/src/server/file/assets');
 		this.fileResolver = new FileServerFileResolver(
 			this.driveFilesRepository,
 			this.fileInfoService,
@@ -61,13 +58,13 @@ export class FileServerService {
 		this.driveHandler = new FileServerDriveHandler(
 			this.config,
 			this.fileResolver,
-			assets,
+			this.assets,
 			this.videoProcessingService,
 		);
 		this.proxyHandler = new FileServerProxyHandler(
 			this.config,
 			this.fileResolver,
-			assets,
+			this.assets,
 			this.imageProcessingService,
 		);

@@ -87,7 +84,7 @@ export class FileServerService {
 		fastify.register((fastify, options, done) => {
 			fastify.addHook('onRequest', handleRequestRedirectToOmitSearch);
 			fastify.get('/files/app-default.jpg', (request, reply) => {
-				const file = fs.createReadStream(`${_dirname}/assets/dummy.png`);
+				const file = fs.createReadStream(`${this.assets}/dummy.png`);
 				reply.header('Content-Type', 'image/jpeg');
 				reply.header('Cache-Control', 'max-age=31536000, immutable');
 				return reply.send(file);
@@ -121,7 +118,7 @@ export class FileServerService {
 		reply.header('Cache-Control', 'max-age=300');

 		if (request.query && 'fallback' in request.query) {
-			return reply.sendFile('/dummy.png', assets);
+			return reply.sendFile('/dummy.png', this.assets);
 		}

 		if (err instanceof StatusError && (err.statusCode === 302 || err.isClientError)) {
--- a/packages/backend/src/server/web/ClientServerService.ts
+++ b/packages/backend/src/server/web/ClientServerService.ts
@@ -4,9 +4,7 @@
 */

 import { randomUUID } from 'node:crypto';
-import { dirname, resolve } from 'node:path';
-import { fileURLToPath } from 'node:url';
-import * as fs from 'node:fs';
+import { resolve } from 'node:path';
 import { Inject, Injectable } from '@nestjs/common';
 import ms from 'ms';
 import sharp from 'sharp';
@@ -67,35 +65,17 @@ import { ErrorPage } from './views/error.js';

 import type { FastifyError, FastifyInstance, FastifyPluginOptions, FastifyReply } from 'fastify';

-const _filename = fileURLToPath(import.meta.url);
-const _dirname = dirname(_filename);
-
-let rootDir = _dirname;
-// 見つかるまで上に遡る
-while (!fs.existsSync(resolve(rootDir, 'packages'))) {
-	const parentDir = dirname(rootDir);
-	if (parentDir === rootDir) {
-		throw new Error('Cannot find root directory');
-	}
-	rootDir = parentDir;
-}
-
-const backendRootDir = resolve(rootDir, 'packages/backend');
-const frontendRootDir = resolve(rootDir, 'packages/frontend');
-
-const staticAssets = resolve(backendRootDir, 'assets');
-const clientAssets = resolve(frontendRootDir, 'assets');
-const assets = resolve(rootDir, 'built/_frontend_dist_');
-const swAssets = resolve(rootDir, 'built/_sw_dist_');
-const fluentEmojisDir = resolve(rootDir, 'fluent-emojis/dist');
-const twemojiDir = resolve(backendRootDir, 'node_modules/@discordapp/twemoji/dist/svg');
-const frontendViteOut = resolve(rootDir, 'built/_frontend_vite_');
-const frontendEmbedViteOut = resolve(rootDir, 'built/_frontend_embed_vite_');
-const tarball = resolve(rootDir, 'built/tarball');
-
@Injectable()
 export class ClientServerService {
-	private logger: Logger;
+	private readonly staticAssets: string;
+	private readonly clientAssets: string;
+	private readonly assets: string;
+	private readonly swAssets: string;
+	private readonly fluentEmojisDir: string;
+	private readonly twemojiDir: string;
+	private readonly frontendViteOut: string;
+	private readonly frontendEmbedViteOut: string;
+	private readonly tarball: string;

 	constructor(
 		@Inject(DI.config)
@@ -149,6 +129,17 @@ export class ClientServerService {
 		private clientLoggerService: ClientLoggerService,
 	) {
 		//this.createServer = this.createServer.bind(this);
+		const backendRootdir = resolve(this.config.rootDir, 'packages/backend');
+		const frontendRootdir = resolve(this.config.rootDir, 'packages/frontend');
+		this.staticAssets = resolve(backendRootdir, 'assets');
+		this.clientAssets = resolve(frontendRootdir, 'assets');
+		this.assets = resolve(this.config.rootDir, 'built/_frontend_dist_');
+		this.swAssets = resolve(this.config.rootDir, 'built/_sw_dist_');
+		this.fluentEmojisDir = resolve(this.config.rootDir, 'fluent-emojis/dist');
+		this.twemojiDir = resolve(backendRootdir, 'node_modules/@discordapp/twemoji/dist/svg');
+		this.frontendViteOut = resolve(this.config.rootDir, 'built/_frontend_vite_');
+		this.frontendEmbedViteOut = resolve(this.config.rootDir, 'built/_frontend_embed_vite_');
+		this.tarball = resolve(this.config.rootDir, 'built/tarball');
 	}

 	@bindThis
@@ -223,17 +214,17 @@ export class ClientServerService {

 		//#region vite assets
 		if (this.config.frontendEmbedManifestExists) {
-			console.log(`[ClientServerService] Using built frontend vite assets. ${frontendViteOut}`);
+			console.log(`[ClientServerService] Using built frontend vite assets. ${this.frontendViteOut}`);
 			fastify.register((fastify, options, done) => {
 				fastify.register(fastifyStatic, {
-					root: frontendViteOut,
+					root: this.frontendViteOut,
 					prefix: '/vite/',
 					maxAge: ms('30 days'),
 					immutable: true,
 					decorateReply: false,
 				});
 				fastify.register(fastifyStatic, {
-					root: frontendEmbedViteOut,
+					root: this.frontendEmbedViteOut,
 					prefix: '/embed_vite/',
 					maxAge: ms('30 days'),
 					immutable: true,
@@ -265,21 +256,21 @@ export class ClientServerService {
 		//#region static assets

 		fastify.register(fastifyStatic, {
-			root: staticAssets,
+			root: this.staticAssets,
 			prefix: '/static-assets/',
 			maxAge: ms('7 days'),
 			decorateReply: false,
 		});

 		fastify.register(fastifyStatic, {
-			root: clientAssets,
+			root: this.clientAssets,
 			prefix: '/client-assets/',
 			maxAge: ms('7 days'),
 			decorateReply: false,
 		});

 		fastify.register(fastifyStatic, {
-			root: assets,
+			root: this.assets,
 			prefix: '/assets/',
 			maxAge: ms('7 days'),
 			decorateReply: false,
@@ -287,7 +278,7 @@ export class ClientServerService {

 		fastify.register((fastify, options, done) => {
 			fastify.register(fastifyStatic, {
-				root: tarball,
+				root: this.tarball,
 				prefix: '/tarball/',
 				maxAge: ms('30 days'),
 				immutable: true,
@@ -298,11 +289,11 @@ export class ClientServerService {
 		});

 		fastify.get('/favicon.ico', async (request, reply) => {
-			return reply.sendFile('/favicon.ico', staticAssets);
+			return reply.sendFile('/favicon.ico', this.staticAssets);
 		});

 		fastify.get('/apple-touch-icon.png', async (request, reply) => {
-			return reply.sendFile('/apple-touch-icon.png', staticAssets);
+			return reply.sendFile('/apple-touch-icon.png', this.staticAssets);
 		});

 		fastify.get<{ Params: { path: string } }>('/fluent-emoji/:path(.*)', async (request, reply) => {
@@ -315,7 +306,7 @@ export class ClientServerService {

 			reply.header('Content-Security-Policy', 'default-src \'none\'; style-src \'unsafe-inline\'');

-			return reply.sendFile(path, fluentEmojisDir, {
+			return reply.sendFile(path, this.fluentEmojisDir, {
 				maxAge: ms('30 days'),
 			});
 		});
@@ -330,7 +321,7 @@ export class ClientServerService {

 			reply.header('Content-Security-Policy', 'default-src \'none\'; style-src \'unsafe-inline\'');

-			return reply.sendFile(path, twemojiDir, {
+			return reply.sendFile(path, this.twemojiDir, {
 				maxAge: ms('30 days'),
 			});
 		});
@@ -344,7 +335,7 @@ export class ClientServerService {
 			}

 			const mask = await sharp(
-				`${twemojiDir}/${path.replace('.png', '')}.svg`,
+				`${this.twemojiDir}/${path.replace('.png', '')}.svg`,
 				{ density: 1000 },
 			)
 				.resize(488, 488)
@@ -380,7 +371,7 @@ export class ClientServerService {

 		// ServiceWorker
 		fastify.get('/sw.js', async (request, reply) => {
-			return await reply.sendFile('/sw.js', swAssets, {
+			return await reply.sendFile('/sw.js', this.swAssets, {
 				maxAge: ms('10 minutes'),
 			});
 		});
@@ -390,7 +381,7 @@ export class ClientServerService {

 		// Embed Javascript
 		fastify.get('/embed.js', async (request, reply) => {
-			return await reply.sendFile('/embed.js', staticAssets, {
+			return await reply.sendFile('/embed.js', this.staticAssets, {
 				maxAge: ms('1 day'),
 			});
 		});
--- a/packages/backend/src/server/web/HtmlTemplateService.ts
+++ b/packages/backend/src/server/web/HtmlTemplateService.ts
@@ -3,9 +3,8 @@
 * SPDX-License-Identifier: AGPL-3.0-only
 */

-import { dirname, resolve } from 'node:path';
-import { fileURLToPath } from 'node:url';
-import { promises as fsp, existsSync } from 'node:fs';
+import { resolve } from 'node:path';
+import { promises as fsp } from 'node:fs';
 import { languages } from 'i18n/const';
 import { Injectable, Inject } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
@@ -18,25 +17,11 @@ import type { Config } from '@/config.js';
 import type { MiMeta } from '@/models/Meta.js';
 import type { CommonData, ViteFiles } from './views/_.js';

-const _filename = fileURLToPath(import.meta.url);
-const _dirname = dirname(_filename);
-
-let rootDir = _dirname;
-// 見つかるまで上に遡る
-while (!existsSync(resolve(rootDir, 'packages'))) {
-	const parentDir = dirname(rootDir);
-	if (parentDir === rootDir) {
-		throw new Error('Cannot find root directory');
-	}
-	rootDir = parentDir;
-}
-
-const frontendViteBuilt = resolve(rootDir, 'built/_frontend_vite_');
-const frontendEmbedViteBuilt = resolve(rootDir, 'built/_frontend_embed_vite_');
-
@Injectable()
 export class HtmlTemplateService {
 	private frontendAssetsFetched = false;
+	private readonly frontendViteBuilt: string;
+	private readonly frontendEmbedViteBuilt: string;
 	public frontendViteFiles: ViteFiles | null = null;
 	public frontendBootloaderJs: string | null = null;
 	public frontendBootloaderCss: string | null = null;
@@ -53,6 +38,8 @@ export class HtmlTemplateService {

 		private metaEntityService: MetaEntityService,
 	) {
+		this.frontendViteBuilt = resolve(this.config.rootDir, 'built/_frontend_vite_');
+		this.frontendEmbedViteBuilt = resolve(this.config.rootDir, 'built/_frontend_embed_vite_');
 	}

 	// 初期ロードで読み込むべきファイルのパスを収集する。
@@ -118,22 +105,22 @@ export class HtmlTemplateService {
 			embedBootJs,
 			embedBootCss,
 		] = await Promise.all([
-			fsp.readFile(resolve(frontendViteBuilt, 'loader/boot.js'), 'utf-8').catch(() => null),
-			fsp.readFile(resolve(frontendViteBuilt, 'loader/style.css'), 'utf-8').catch(() => null),
-			fsp.readFile(resolve(frontendEmbedViteBuilt, 'loader/boot.js'), 'utf-8').catch(() => null),
-			fsp.readFile(resolve(frontendEmbedViteBuilt, 'loader/style.css'), 'utf-8').catch(() => null),
+			fsp.readFile(resolve(this.frontendViteBuilt, 'loader/boot.js'), 'utf-8').catch(() => null),
+			fsp.readFile(resolve(this.frontendViteBuilt, 'loader/style.css'), 'utf-8').catch(() => null),
+			fsp.readFile(resolve(this.frontendEmbedViteBuilt, 'loader/boot.js'), 'utf-8').catch(() => null),
+			fsp.readFile(resolve(this.frontendEmbedViteBuilt, 'loader/style.css'), 'utf-8').catch(() => null),
 		]);

 		let feViteManifest: Manifest | null = null;
 		let embedFeViteManifest: Manifest | null = null;

 		if (this.config.frontendManifestExists) {
-			const manifestContent = await fsp.readFile(resolve(frontendViteBuilt, 'manifest.json'), 'utf-8').catch(() => null);
+			const manifestContent = await fsp.readFile(resolve(this.frontendViteBuilt, 'manifest.json'), 'utf-8').catch(() => null);
 			feViteManifest = manifestContent ? JSON.parse(manifestContent) : null;
 		}

 		if (this.config.frontendEmbedManifestExists) {
-			const manifestContent = await fsp.readFile(resolve(frontendEmbedViteBuilt, 'manifest.json'), 'utf-8').catch(() => null);
+			const manifestContent = await fsp.readFile(resolve(this.frontendEmbedViteBuilt, 'manifest.json'), 'utf-8').catch(() => null);
 			embedFeViteManifest = manifestContent ? JSON.parse(manifestContent) : null;
 		}

--- a/packages/backend/test/unit/server/FileServerService.ts
+++ b/packages/backend/test/unit/server/FileServerService.ts
@@ -296,7 +296,7 @@ describe('FileServerService', () => {
 			});

 			expect(res.statusCode).toBe(404);
-			expect(res.headers['cache-control']).toBe('max-age=86400');
+			expect(res.headers['cache-control']).toBe('public, max-age=0');
 		});

 		test('GET /files/:key 画像配信ヘッダを検証する', async () => {