From 8598f3912ecc16f9b7c3f502e09d9ea96f7e507d Mon Sep 17 00:00:00 2001
From: anatawa12 <anatawa12@icloud.com>
Date: Fri, 8 Aug 2025 11:26:18 +0900
Subject: per-locale bundle & inline locale (#16369)
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* feat: split entry file by locale name

* chore: とりあえず transform hook で雑に分割

* chore: とりあえず transform 結果をいい感じに

* chore: concurrent buildで高速化

* chore: vite ではローケルのないものをビルドして後処理でどうにかするように

* chore: 後処理のためにi18n.jを単体になるように切り出す

* chore: use typescript

* chore: remove unref(i18n) in vite build process

* chore: inline variable

* fix: build error

* fix: i18n.ts.something.replaceAll() become error

* chore: ignore export specifier from error

* chore: support i18n.tsx as object

* chore: process literal for all files

* chore: split config and locale

* chore: inline locale name

* chore: remove updating locale in boot common

* chore: use top-level await to load locales

* chore: inline locale

* chore: remove loading locale from boot.js

* chore: remove loading locale from boot.js

* コメント追加

* fix test; fetchに失敗する

* import削除ログをdebugレベルに

* fix: watch pug

* chore: use hash for entry files

* chore: remove es-module-lexer from dependencies

* chore: move to frontend-builder

* chore: use inline locale in embed

* chore: refetch json on hot reload

* feat: store localization related to boot.js in backend in bootloaderLocales localstorage

* 応急処置を戻す

* fix spex

* fix `Using i18n identifier "e" directly. Skipping inlining.` warning

* refactor: use scriptsDir parameter

* chore: remove i18n from depmap

* chore: make build crash if errors

* error -> warn few conditions

* use inline object

* update localstorage keys

* remove accessing locale localstorage

* fix: failed to process i18n.tsx.aaa({x:i18n.bbb})
---
 packages/frontend-embed/src/boot.ts | 19 ++++---------------
 packages/frontend-embed/src/i18n.ts |  3 ++-
 2 files changed, 6 insertions(+), 16 deletions(-)

(limited to 'packages/frontend-embed/src')

diff --git a/packages/frontend-embed/src/boot.ts b/packages/frontend-embed/src/boot.ts
index 459b283e23..9d69437c30 100644
--- a/packages/frontend-embed/src/boot.ts
+++ b/packages/frontend-embed/src/boot.ts
@@ -17,15 +17,16 @@ import { createApp, defineAsyncComponent } from 'vue';
 import defaultLightTheme from '@@/themes/l-light.json5';
 import defaultDarkTheme from '@@/themes/d-dark.json5';
 import { MediaProxy } from '@@/js/media-proxy.js';
+import { storeBootloaderErrors } from '@@/js/store-boot-errors';
 import { applyTheme, assertIsTheme } from '@/theme.js';
 import { fetchCustomEmojis } from '@/custom-emojis.js';
 import { DI } from '@/di.js';
 import { serverMetadata } from '@/server-metadata.js';
-import { url, version, locale, lang, updateLocale } from '@@/js/config.js';
+import { url, version, lang } from '@@/js/config.js';
 import { parseEmbedParams } from '@@/js/embed-page.js';
 import { postMessageToParentWindow, setIframeId } from '@/post-message.js';
 import { serverContext } from '@/server-context.js';
-import { i18n, updateI18n } from '@/i18n.js';
+import { i18n } from '@/i18n.js';
 
 import type { Theme } from '@/theme.js';
 
@@ -76,19 +77,7 @@ if (embedParams.colorMode === 'dark') {
 //#endregion
 
 //#region Detect language & fetch translations
-const localeVersion = localStorage.getItem('localeVersion');
-const localeOutdated = (localeVersion == null || localeVersion !== version || locale == null);
-if (localeOutdated) {
-	const res = await window.fetch(`/assets/locales/${lang}.${version}.json`);
-	if (res.status === 200) {
-		const newLocale = await res.text();
-		const parsedNewLocale = JSON.parse(newLocale);
-		localStorage.setItem('locale', newLocale);
-		localStorage.setItem('localeVersion', version);
-		updateLocale(parsedNewLocale);
-		updateI18n(parsedNewLocale);
-	}
-}
+storeBootloaderErrors({ ...i18n.ts._bootErrors, reload: i18n.ts.reload });
 //#endregion
 
 // サイズの制限
diff --git a/packages/frontend-embed/src/i18n.ts b/packages/frontend-embed/src/i18n.ts
index 6ad503b089..0b2b206b7e 100644
--- a/packages/frontend-embed/src/i18n.ts
+++ b/packages/frontend-embed/src/i18n.ts
@@ -5,11 +5,12 @@
 
 import { markRaw } from 'vue';
 import { I18n } from '@@/js/i18n.js';
+import { locale } from '@@/js/locale.js';
 import type { Locale } from '../../../locales/index.js';
-import { locale } from '@@/js/config.js';
 
 export const i18n = markRaw(new I18n<Locale>(locale, _DEV_));
 
+// test 以外では使わないこと。インライン化されてるのでだいたい意味がない
 export function updateI18n(newLocale: Locale) {
 	i18n.locale = newLocale;
 }
-- 
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