chore: swtich to rolldown bundling (experimental) (#2067)

* chore: swtich to rolldown bundling

* fix

* fix: rolldown errors

* fix: wrong exporting

* fix: output dist files

* fix: generate stub file

* fix: add type definition generating script with oxc-transform

* chore: drop unnecesary scripts

* fix: isolatedDeclaration build errors for oxc

* fix: export lite module for petite-vue-i18n

* fix: update stubs

* fix: update from rollup config

* fix: vue-i18n type generation

* chore: ignore format and lint

* fix: refactor codes

* fix: bundle dts files

* chore: add ci for rolldown build

* fix: dts scripts

* fix: update deps

* chore: disable e2e for rolldown

* chore: refactor rollup building

Author: kazupon

.github/workflows/ci.yml

@@ -78,6 +78,41 @@ jobs:
           path: packages/*/dist
           key: build-vue-i18n-os-${{ matrix.os }}-${{ github.sha }}
 
+  build-rolldown:
+    name: Build with rolldown
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+        node: [18]
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - name: Checkout codes
+        uses: actions/checkout@v4
+
+      - name: Enable corepack
+        run: corepack enable
+
+      - name: Setup node
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node }}
+          cache: 'pnpm'
+
+      - name: Install dependencies
+        run: pnpm install --no-frozen-lockfile
+
+      - name: Build codes
+        run: |
+          pnpm build:rolldown --withTypes
+
+      - name: Cache dist
+        uses: actions/cache@v4
+        with:
+          path: packages/*/dist
+          key: build-rolldown-vue-i18n-os-${{ matrix.os }}-${{ github.sha }}
+
   test-unit:
     name: Unit test
     strategy:
@@ -147,3 +182,44 @@ jobs:
 
       - name: Run e2e tests
         run: pnpm test:e2e
+
+  # test-e2e-rolldown:
+  #   name: E2E test for rolldown build
+
+  #   needs:
+  #     - build-rolldown
+
+  #   strategy:
+  #     matrix:
+  #       os: [ubuntu-latest, windows-latest, macos-latest]
+  #       node: [18.19, 20, 22]
+
+  #   runs-on: ${{ matrix.os }}
+
+  #   steps:
+  #     - name: Checkout codes
+  #       uses: actions/checkout@v4
+
+  #     - name: Enable corepack
+  #       run: corepack enable
+
+  #     - name: Setup node
+  #       uses: actions/setup-node@v4
+  #       with:
+  #         node-version: ${{ matrix.node }}
+  #         cache: 'pnpm'
+
+  #     - name: Install dependencies
+  #       run: pnpm install --no-frozen-lockfile
+
+  #     - name: Install Playwright
+  #       run: pnpm playwright-core install chromium
+
+  #     - name: Restore dist cache
+  #       uses: actions/cache@v4
+  #       with:
+  #         path: packages/*/dist
+  #         key: build-rolldown-vue-i18n-os-${{ matrix.os }}-${{ github.sha }}
+
+  #     - name: Run e2e tests
+  #       run: pnpm test:e2e

.prettierignore

@@ -4,4 +4,5 @@ docs
 coverage
 tsconfig.json
 api-extractor.json
-README.md
+README.md
+temp

api-extractor.json

@@ -303,7 +303,7 @@
          *
          * DEFAULT VALUE: "warning"
          */
-        "logLevel": "warning",
+        "logLevel": "none", /* FIXME: Change to "warning" */
 
         /**
          * When addToApiReportFile is true:  If API Extractor is configured to write an API report file (.api.md),

eslint.config.mjs

@@ -93,9 +93,12 @@ export default [
       '**/test/**',
       '**/examples/**',
       'shim.d.ts',
+      'temp/**',
       '.eslintcache',
       '.eslintrc.cjs',
+      'packages/*/vite.config.ts',
       'packages/*/index.js',
+      'packages/vue-i18n-core/petite.js',
       'docsgen.config.js',
       'scripts/api/*.js'
     ]

package.json

@@ -24,6 +24,7 @@
     "bench:simple-jit-aot": "node --expose-gc ./benchmark/simple-jit-aot.mjs",
     "build": "tsx ./scripts/build.ts",
     "build:explorer": "pnpm --filter @intlify/message-format-explorer build",
+    "build:rolldown": "tsx ./scripts/build-rolldown.ts",
     "build:size": "pnpm build && run-p build:size-*",
     "build:size-core": "pnpm --filter @intlify/size-check-core build",
     "build:size-petite-vue-i18n": "pnpm --filter @intlify/size-check-petite-vue-i18n build",
@@ -84,16 +85,18 @@
     "@eslint/js": "^9.9.1",
     "@intlify/core-base": "workspace:*",
     "@intlify/message-compiler": "workspace:*",
+    "@intlify/vue-i18n-core": "workspace:*",
     "@microsoft/api-extractor": "7.15.2",
+    "@rolldown/plugin-node-polyfills": "^1.0.0",
     "@rollup/plugin-commonjs": "^25.0.0",
     "@rollup/plugin-json": "^6.0.0",
     "@rollup/plugin-node-resolve": "^15.0.2",
     "@rollup/plugin-replace": "^5.0.2",
     "@rollup/plugin-terser": "^0.4.3",
     "@secretlint/secretlint-rule-preset-recommend": "^3.1.0",
+    "@swc/core": "^1.10.4",
     "@textlint-rule/textlint-rule-no-unmatched-pair": "^2.0.0",
     "@types/eslint": "^9.6.1",
-    "@types/js-yaml": "^4.0.5",
     "@types/jsdom": "^21.1.1",
     "@types/node": "^22.10.3",
     "@types/rc": "^1.2.4",
@@ -106,25 +109,28 @@
     "eslint-config-prettier": "^9.1.0",
     "eslint-plugin-vue": "^9.28.0",
     "execa": "^9.3.0",
+    "fast-glob": "^3.3.3",
     "fixpack": "^4.0.0",
     "get-port-please": "^3.1.2",
     "globals": "^15.9.0",
-    "globby": "^14.0.1",
-    "js-yaml": "^4.1.0",
     "jsdom": "^24.0.0",
     "lint-staged": "^15.2.2",
     "listhen": "^1.7.2",
+    "magic-string": "^0.30.17",
     "markdown-table": "^3.0.4",
     "mitata": "^1.0.20",
     "npm-run-all2": "^7.0.0",
     "opener": "^1.5.2",
-    "pathe": "^1.1.2",
+    "oxc-parser": "^0.44.0",
+    "oxc-transform": "^0.44.0",
     "picocolors": "^1.0.0",
     "pkg-pr-new": "^0.0.37",
     "playwright-core": "^1.45.3",
     "prettier": "^3.3.3",
     "rc": "^1.2.8",
+    "rolldown": "1.0.0-beta.1",
     "rollup": "^4.21.2",
+    "rollup-plugin-dts": "^6.1.1",
     "rollup-plugin-node-builtins": "^2.1.2",
     "rollup-plugin-node-globals": "^1.4.0",
     "rollup-plugin-typescript2": "^0.36.0",
@@ -150,7 +156,7 @@
     "trash-cli": "^6.0.0",
     "tslib": "^2.6.2",
     "tsx": "^4.11.2",
-    "typescript": "^5.5.3",
+    "typescript": "^5.6.3",
     "typescript-eslint": "^8.4.0",
     "vitepress": "1.5.0",
     "vitest": "^2.1.5",

packages/core-base/src/context.ts

@@ -333,7 +333,7 @@ export interface CoreInternalContext {
  * Intlify core-base version
  * @internal
  */
-export const VERSION = __VERSION__
+export const VERSION: string = __VERSION__
 
 export const NOT_REOSLVED = -1
 

packages/core-base/src/datetime.ts

@@ -295,7 +295,7 @@ export function datetime<
 }
 
 /** @internal */
-export const DATETIME_FORMAT_OPTIONS_KEYS = [
+export const DATETIME_FORMAT_OPTIONS_KEYS: string[] = [
   'localeMatcher',
   'weekday',
   'era',

packages/core-base/src/devtools.ts

@@ -30,10 +30,14 @@ export function initI18nDevTools(
     })
 }
 
-export const translateDevTools =
+export const translateDevTools: ReturnType<typeof createDevToolsHook> =
   /* #__PURE__*/ createDevToolsHook('function:translate')
 
-function createDevToolsHook(hook: IntlifyDevToolsHooks) {
+function createDevToolsHook(
+  hook: IntlifyDevToolsHooks
+): (
+  payloads: IntlifyDevToolsHookPayloads[IntlifyDevToolsHooks]
+) => void | null {
   return (payloads: IntlifyDevToolsHookPayloads[IntlifyDevToolsHooks]) =>
     devtools && devtools.emit(hook, payloads)
 }

packages/core-base/src/errors.ts

@@ -8,7 +8,7 @@ import type { BaseError } from '@intlify/shared'
 export interface CoreError extends BaseError {}
 
 export const CoreErrorCodes = {
-  INVALID_ARGUMENT: COMPILE_ERROR_CODES_EXTEND_POINT, // 17
+  INVALID_ARGUMENT: COMPILE_ERROR_CODES_EXTEND_POINT as number, // 17
   INVALID_DATE_ARGUMENT: 18,
   INVALID_ISO_DATE_ARGUMENT: 19,
   NOT_SUPPORT_NON_STRING_MESSAGE: 20,

packages/core-base/src/fallbacker.ts

@@ -35,7 +35,7 @@ export function getLocale<Messages, Message>(
 let _resolveLocale: string
 
 /** @internal */
-export function resolveLocale(locale: Locale | LocaleDetector) {
+export function resolveLocale(locale: Locale | LocaleDetector): string {
   if (isString(locale)) {
     return locale
   } else {