fix(build): remove tsconfig paths mapping and adjust bundle config #5052

Jungzl · 2026-01-09T08:37:59Z

netlify · 2026-01-09T08:38:05Z

✅ Deploy Preview for unocss ready!

Built without sensitive environment variables

Name	Link
🔨 Latest commit	`de78633`
🔍 Latest deploy log	https://app.netlify.com/projects/unocss/deploys/69659c296713e500079380c8
😎 Deploy Preview	https://deploy-preview-5052--unocss.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

To edit notification comments on pull requests, go to your Netlify project configuration.

pkg-pr-new · 2026-01-09T08:41:18Z

Open in StackBlitz

commit: de78633

Jungzl · 2026-01-10T08:31:01Z

Explicitly set externals indeed resolve the issue(deps' types will not inlined anymore), but according to docs, we don't have to set them and should just omit them.

Here's a minimal repro, and the build output:

> [email protected] build /Users/jungzl/Projects/local-unocss
> tsdown

ℹ tsdown v0.18.4 powered by rolldown v1.0.0-beta.57
ℹ config file: /Users/jungzl/Projects/local-unocss/tsdown.config.ts 
ℹ [Dual] entry: src/webpack.ts, src/postcss.ts
ℹ [Dual] tsconfig: tsconfig.json
ℹ [ESM only] entry: src/index.ts, src/vite.ts, src/astro.ts, src/preset-uno.ts, src/preset-icons.ts, src/preset-attributify.ts, src/preset-tagify.ts, src/preset-web-fonts.ts, src/preset-typography.ts, src/preset-wind.ts, src/preset-mini.ts, src/preset-wind3.ts, src/preset-wind4.ts
ℹ [ESM only] tsconfig: tsconfig.json
ℹ Build start
ℹ Cleaning 35 files
ℹ [Dual] [CJS] dist/webpack.cjs         0.76 kB │ gzip: 0.37 kB
ℹ [Dual] [CJS] dist/postcss.cjs         0.28 kB │ gzip: 0.18 kB
ℹ [Dual] [CJS] dist/chunk-CbDLau6x.cjs  1.12 kB │ gzip: 0.54 kB
ℹ [Dual] [CJS] 3 files, total: 2.16 kB
ℹ [Dual] [CJS] dist/webpack.d.cts  0.26 kB │ gzip: 0.17 kB
ℹ [Dual] [CJS] dist/postcss.d.cts  0.06 kB │ gzip: 0.06 kB
ℹ [Dual] [CJS] 2 files, total: 0.32 kB
✔ [Dual] Build complete in 324ms
ℹ [Dual] [ESM] dist/webpack.mjs    0.32 kB │ gzip: 0.19 kB
ℹ [Dual] [ESM] dist/postcss.mjs    0.15 kB │ gzip: 0.11 kB
ℹ [Dual] [ESM] dist/webpack.d.mts  0.29 kB │ gzip: 0.19 kB
ℹ [Dual] [ESM] dist/postcss.d.mts  0.07 kB │ gzip: 0.07 kB
ℹ [Dual] [ESM] 4 files, total: 0.82 kB
✔ [Dual] Build complete in 325ms
ℹ [ESM only] [ESM] dist/index.mjs                 1.21 kB │ gzip: 0.38 kB
ℹ [ESM only] [ESM] dist/vite.mjs                  0.30 kB │ gzip: 0.19 kB
ℹ [ESM only] [ESM] dist/astro.mjs                 0.29 kB │ gzip: 0.18 kB
ℹ [ESM only] [ESM] dist/preset-attributify.mjs    0.16 kB │ gzip: 0.10 kB
ℹ [ESM only] [ESM] dist/preset-typography.mjs     0.16 kB │ gzip: 0.10 kB
ℹ [ESM only] [ESM] dist/preset-web-fonts.mjs      0.15 kB │ gzip: 0.10 kB
ℹ [ESM only] [ESM] dist/preset-tagify.mjs         0.14 kB │ gzip: 0.09 kB
ℹ [ESM only] [ESM] dist/preset-icons.mjs          0.14 kB │ gzip: 0.09 kB
ℹ [ESM only] [ESM] dist/preset-wind3.mjs          0.14 kB │ gzip: 0.09 kB
ℹ [ESM only] [ESM] dist/preset-wind4.mjs          0.14 kB │ gzip: 0.09 kB
ℹ [ESM only] [ESM] dist/preset-mini.mjs           0.14 kB │ gzip: 0.09 kB
ℹ [ESM only] [ESM] dist/preset-wind.mjs           0.14 kB │ gzip: 0.09 kB
ℹ [ESM only] [ESM] dist/preset-uno.mjs            0.13 kB │ gzip: 0.09 kB
ℹ [ESM only] [ESM] dist/index.d.mts               1.57 kB │ gzip: 0.47 kB
ℹ [ESM only] [ESM] dist/vite.d.mts                0.31 kB │ gzip: 0.20 kB
ℹ [ESM only] [ESM] dist/astro.d.mts               0.30 kB │ gzip: 0.18 kB
ℹ [ESM only] [ESM] dist/preset-attributify.d.mts  0.16 kB │ gzip: 0.09 kB
ℹ [ESM only] [ESM] dist/preset-typography.d.mts   0.16 kB │ gzip: 0.09 kB
ℹ [ESM only] [ESM] dist/preset-web-fonts.d.mts    0.15 kB │ gzip: 0.10 kB
ℹ [ESM only] [ESM] dist/preset-tagify.d.mts       0.14 kB │ gzip: 0.09 kB
ℹ [ESM only] [ESM] dist/preset-icons.d.mts        0.14 kB │ gzip: 0.09 kB
ℹ [ESM only] [ESM] dist/preset-wind3.d.mts        0.14 kB │ gzip: 0.09 kB
ℹ [ESM only] [ESM] dist/preset-wind4.d.mts        0.14 kB │ gzip: 0.09 kB
ℹ [ESM only] [ESM] dist/preset-mini.d.mts         0.13 kB │ gzip: 0.09 kB
ℹ [ESM only] [ESM] dist/preset-wind.d.mts         0.13 kB │ gzip: 0.09 kB
ℹ [ESM only] [ESM] dist/preset-uno.d.mts          0.13 kB │ gzip: 0.09 kB
ℹ [ESM only] [ESM] 26 files, total: 6.85 kB
✔ [ESM only] Build complete in 683ms
✔ [ESM only] [attw] No problems found (561ms)

which is close to <= 66.5.10 while in this monorepo if you omit externals, the build output will be:

> [email protected] build /Users/jungzl/Projects/unocss/packages-presets/unocss
> tsdown

ℹ tsdown v0.18.3 powered by rolldown v1.0.0-beta.57
ℹ config file: /Users/jungzl/Projects/unocss/packages-presets/unocss/tsdown.config.ts 
ℹ [Dual] entry: src/webpack.ts, src/postcss.ts
ℹ [Dual] target: node14.0.0
ℹ [Dual] tsconfig: ../../tsconfig.json
ℹ [ESM only] entry: src/index.ts, src/vite.ts, src/astro.ts, src/preset-uno.ts, src/preset-icons.ts, src/preset-attributify.ts, src/preset-tagify.ts, src/preset-web-fonts.ts, src/preset-typography.ts, src/preset-wind.ts, src/preset-mini.ts, src/preset-wind3.ts, src/preset-wind4.ts
ℹ [ESM only] target: node14.0.0
ℹ [ESM only] tsconfig: ../../tsconfig.json
ℹ Build start
ℹ Cleaning 40 files
ℹ [Dual] [CJS] dist/webpack.cjs         0.76 kB │ gzip: 0.37 kB
ℹ [Dual] [CJS] dist/postcss.cjs         0.28 kB │ gzip: 0.18 kB
ℹ [Dual] [CJS] dist/chunk-CbDLau6x.cjs  1.12 kB │ gzip: 0.54 kB
ℹ [Dual] [CJS] 3 files, total: 2.16 kB
ℹ [Dual] [CJS] dist/postcss.d.cts          0.78 kB │ gzip: 0.41 kB
ℹ [Dual] [CJS] dist/webpack.d.cts          0.78 kB │ gzip: 0.36 kB
ℹ [Dual] [CJS] dist/types-BJXpjqVF.d.cts  30.60 kB │ gzip: 8.05 kB
ℹ [Dual] [CJS] 3 files, total: 32.16 kB
✔ [Dual] Build complete in 1131ms
ℹ [Dual] [ESM] dist/webpack.mjs            0.32 kB │ gzip: 0.19 kB
ℹ [Dual] [ESM] dist/postcss.mjs            0.15 kB │ gzip: 0.11 kB
ℹ [Dual] [ESM] dist/postcss.d.mts          0.81 kB │ gzip: 0.41 kB
ℹ [Dual] [ESM] dist/webpack.d.mts          0.78 kB │ gzip: 0.36 kB
ℹ [Dual] [ESM] dist/types-mY0m3B5A.d.mts  30.60 kB │ gzip: 8.05 kB
ℹ [Dual] [ESM] 5 files, total: 32.65 kB
✔ [Dual] Build complete in 1132ms
ℹ [ESM only] [ESM] dist/index.mjs                  1.21 kB │ gzip:  0.38 kB
ℹ [ESM only] [ESM] dist/vite.mjs                   0.30 kB │ gzip:  0.19 kB
ℹ [ESM only] [ESM] dist/astro.mjs                  0.29 kB │ gzip:  0.18 kB
ℹ [ESM only] [ESM] dist/preset-attributify.mjs     0.16 kB │ gzip:  0.10 kB
ℹ [ESM only] [ESM] dist/preset-typography.mjs      0.16 kB │ gzip:  0.10 kB
ℹ [ESM only] [ESM] dist/preset-web-fonts.mjs       0.15 kB │ gzip:  0.10 kB
ℹ [ESM only] [ESM] dist/preset-tagify.mjs          0.14 kB │ gzip:  0.09 kB
ℹ [ESM only] [ESM] dist/preset-icons.mjs           0.14 kB │ gzip:  0.09 kB
ℹ [ESM only] [ESM] dist/preset-wind3.mjs           0.14 kB │ gzip:  0.09 kB
ℹ [ESM only] [ESM] dist/preset-wind4.mjs           0.14 kB │ gzip:  0.09 kB
ℹ [ESM only] [ESM] dist/preset-mini.mjs            0.14 kB │ gzip:  0.09 kB
ℹ [ESM only] [ESM] dist/preset-wind.mjs            0.14 kB │ gzip:  0.09 kB
ℹ [ESM only] [ESM] dist/preset-uno.mjs             0.13 kB │ gzip:  0.09 kB
ℹ [ESM only] [ESM] dist/preset-wind4.d.mts        19.58 kB │ gzip:  2.12 kB
ℹ [ESM only] [ESM] dist/preset-mini.d.mts         15.42 kB │ gzip:  1.93 kB
ℹ [ESM only] [ESM] dist/index.d.mts                6.39 kB │ gzip:  1.98 kB
ℹ [ESM only] [ESM] dist/astro.d.mts                0.86 kB │ gzip:  0.42 kB
ℹ [ESM only] [ESM] dist/preset-attributify.d.mts   0.86 kB │ gzip:  0.31 kB
ℹ [ESM only] [ESM] dist/vite.d.mts                 0.67 kB │ gzip:  0.32 kB
ℹ [ESM only] [ESM] dist/preset-wind3.d.mts         0.62 kB │ gzip:  0.30 kB
ℹ [ESM only] [ESM] dist/preset-web-fonts.d.mts     0.50 kB │ gzip:  0.23 kB
ℹ [ESM only] [ESM] dist/preset-typography.d.mts    0.42 kB │ gzip:  0.19 kB
ℹ [ESM only] [ESM] dist/preset-icons.d.mts         0.42 kB │ gzip:  0.21 kB
ℹ [ESM only] [ESM] dist/preset-tagify.d.mts        0.27 kB │ gzip:  0.17 kB
ℹ [ESM only] [ESM] dist/preset-wind.d.mts          0.17 kB │ gzip:  0.13 kB
ℹ [ESM only] [ESM] dist/preset-uno.d.mts           0.16 kB │ gzip:  0.13 kB
ℹ [ESM only] [ESM] dist/split-jWX3Cw_P.d.mts      76.55 kB │ gzip: 19.15 kB
ℹ [ESM only] [ESM] dist/colors-BYdFgHBl.d.mts      5.81 kB │ gzip:  0.45 kB
ℹ [ESM only] [ESM] dist/index-CrRqJ4Yv.d.mts       3.45 kB │ gzip:  1.16 kB
ℹ [ESM only] [ESM] 29 files, total: 135.40 kB
✔ [ESM only] Build complete in 1353ms

 WARN  [ESM only] [attw] problems found:
  🎭 False export default
     Types: /node_modules/unocss/dist/webpack.d.cts | Implementation: /node_modules/unocss/dist/webpack.cjs

and if you run tsdown --debug --debug-logs, there are tons of relative paths marked as shouldExternal: false, like:

I think it is a bug in tsdown.
/cc @sxzz

sxzz · 2026-01-10T08:55:39Z

@Jungzl Please provide more background. No idea about your expectation.

Jungzl · 2026-01-10T09:36:16Z

if I set config like below(which is the same as repro above):

tsdown.config.ts

import { defineConfig } from 'tsdown'

export default defineConfig([
  {
    name: 'Dual',
    entry: [
      'src/webpack.ts',
      'src/postcss.ts',
    ],
    clean: true,
    dts: true,
    format: ['esm', 'cjs'],
-    external: [
-      '@unocss/webpack',
-      '@unocss/postcss',
-    ],
    failOnWarn: false,
  },
  {
    name: 'ESM only',
    entry: [
      'src/index.ts',
      'src/vite.ts',
      'src/astro.ts',
      'src/preset-uno.ts',
      'src/preset-icons.ts',
      'src/preset-attributify.ts',
      'src/preset-tagify.ts',
      'src/preset-web-fonts.ts',
      'src/preset-typography.ts',
      'src/preset-wind.ts',
      'src/preset-mini.ts',
      'src/preset-wind3.ts',
      'src/preset-wind4.ts',
    ],
    clean: false,
    dts: true,
-    external: [
-      '@unocss/core',
-      '@unocss/astro',
-      '@unocss/postcss',
-      '@unocss/preset-attributify',
-      '@unocss/preset-icons',
-      '@unocss/preset-mini',
-      '@unocss/preset-tagify',
-      '@unocss/preset-typography',
-      '@unocss/preset-uno',
-      '@unocss/preset-web-fonts',
-      '@unocss/preset-wind',
-      '@unocss/preset-wind3',
-      '@unocss/preset-wind4',
-      '@unocss/transformer-attributify-jsx',
-      '@unocss/transformer-compile-class',
-      '@unocss/transformer-directives',
-      '@unocss/transformer-variant-group',
-      '@unocss/vite',
-    ],
    attw: {
      profile: 'esm-only',
    },
  },
])

deps will not be bundled into dist by default, but dts generated from deps are not omitted.

the right is the expected output.

▼ split-jWX3Cw_P.d.mts :

so now we have to explicitly set all related deps on external option, I think tsdown should omit these types as well or maybe I missed some configuration option. @sxzz

sxzz · 2026-01-10T09:41:28Z

So, you mean these dependencies are inline-bundled in unocss repo, but externalized in your reproduction repo, right?

Jungzl · 2026-01-10T09:43:30Z

So, you mean these dependencies are inline-bundled in unocss repo, but externalized in your reproduction repo, right?

Only the dts are inlined, while the deps are not.

sxzz · 2026-01-10T09:45:04Z

In your reproduction, all deps are externalized in both js and dts

// dist/index.js
import presetAttributify from "@unocss/preset-attributify";
import presetIcons from "@unocss/preset-icons";
import presetMini from "@unocss/preset-mini";
import presetTagify from "@unocss/preset-tagify";
import presetTypography from "@unocss/preset-typography";
import presetUno from "@unocss/preset-uno";
import presetWebFonts from "@unocss/preset-web-fonts";
import presetWind from "@unocss/preset-wind";
import presetWind3 from "@unocss/preset-wind3";
import presetWind4 from "@unocss/preset-wind4";
import transformerAttributifyJsx from "@unocss/transformer-attributify-jsx";
import transformerCompileClass from "@unocss/transformer-compile-class";
import transformerDirectives from "@unocss/transformer-directives";
import transformerVariantGroup from "@unocss/transformer-variant-group";

export * from "@unocss/core"

//#region src/index.ts
/**
* Define UnoCSS config
*/
function defineConfig(config) {
	return config;
}

//#endregion
export { defineConfig, presetAttributify, presetIcons, presetMini, presetTagify, presetTypography, presetUno, presetWebFonts, presetWind, presetWind3, presetWind4, transformerAttributifyJsx, transformerCompileClass, transformerDirectives, transformerVariantGroup };

// dist/index.d.ts
import { UserConfig } from "@unocss/core";
import presetAttributify from "@unocss/preset-attributify";
import presetIcons from "@unocss/preset-icons";
import presetMini, { Theme as PresetMiniTheme } from "@unocss/preset-mini";
import presetTagify from "@unocss/preset-tagify";
import presetTypography from "@unocss/preset-typography";
import presetUno, { Theme, Theme as PresetUnoTheme } from "@unocss/preset-uno";
import presetWebFonts from "@unocss/preset-web-fonts";
import presetWind, { Theme as PresetWindTheme } from "@unocss/preset-wind";
import presetWind3, { Theme as PresetWind3Theme } from "@unocss/preset-wind3";
import presetWind4, { Theme as PresetWind4Theme } from "@unocss/preset-wind4";
import transformerAttributifyJsx from "@unocss/transformer-attributify-jsx";
import transformerCompileClass from "@unocss/transformer-compile-class";
import transformerDirectives from "@unocss/transformer-directives";
import transformerVariantGroup from "@unocss/transformer-variant-group";
export * from "@unocss/core";

//#region src/index.d.ts

/**
 * Define UnoCSS config
 */
declare function defineConfig<T extends object = Theme>(config: UserConfig<T>): UserConfig<T>;
//#endregion
export { type PresetMiniTheme, type PresetUnoTheme, type PresetWind3Theme, type PresetWind4Theme, type PresetWindTheme, defineConfig, presetAttributify, presetIcons, presetMini, presetTagify, presetTypography, presetUno, presetWebFonts, presetWind, presetWind3, presetWind4, transformerAttributifyJsx, transformerCompileClass, transformerDirectives, transformerVariantGroup };

Jungzl · 2026-01-10T09:46:58Z

it works fine in single repo but not in monorepo.

sxzz · 2026-01-10T09:54:33Z

OK, I see. Your reproduction actually misled me. A reproduction is meant to demonstrate the bug, not to show a working example...

Jungzl · 2026-01-10T09:57:15Z

oops, sorry for the confusion.

Jungzl · 2026-01-12T04:36:37Z

uhh...docs & playground build failed, I need to investigate further.

Jungzl · 2026-01-12T04:39:21Z

looks like mentioned in #5049

fix(vite): external @unocss/core

c765cc1

Jungzl requested review from antfu and zyyv as code owners January 9, 2026 08:38

Jungzl marked this pull request as draft January 9, 2026 10:02

Jungzl added 2 commits January 10, 2026 01:30

fix: correctly external all @unocss dependencies in unocss package

6c9db6e

fix: external @unocss/vite

661c271

Jungzl mentioned this pull request Jan 11, 2026

fix: auto external dts rolldown/tsdown#703

Closed

Jungzl and others added 5 commits January 11, 2026 23:28

fix: omit external

4ffb953

fix: use pr version

d31233c

fix: adjust tsconfig.json & tsdown.config.ts

22c94bf

[autofix.ci] apply automated fixes

19619b9

test: update rule order test

090b2ba

Jungzl changed the title ~~fix(vite): external "@unocss/core"~~ fix(build): remove tsconfig paths mapping and adjust bundle config Jan 12, 2026

Jungzl marked this pull request as ready for review January 12, 2026 03:16

zyyv added this to the 66.6.0 milestone Jan 12, 2026

Jungzl added 2 commits January 12, 2026 12:45

chore: update

87d181e

chore: cleanup

6ac38b3

github-actions bot mentioned this pull request Jan 14, 2026

chore(deps): update all non-major dependencies headwindcss/headwind#12

Open

1 task

Uh oh!

fix(build): remove tsconfig paths mapping and adjust bundle config #5052

fix(build): remove tsconfig paths mapping and adjust bundle config #5052

Conversation

Jungzl commented Jan 9, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Uh oh!

netlify bot commented Jan 9, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

✅ Deploy Preview for unocss ready!

Uh oh!

pkg-pr-new bot commented Jan 9, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Uh oh!

Jungzl commented Jan 10, 2026

Uh oh!

sxzz commented Jan 10, 2026

Uh oh!

Jungzl commented Jan 10, 2026

Uh oh!

sxzz commented Jan 10, 2026

Uh oh!

Jungzl commented Jan 10, 2026

Uh oh!

sxzz commented Jan 10, 2026

Uh oh!

Jungzl commented Jan 10, 2026

Uh oh!

sxzz commented Jan 10, 2026

Uh oh!

Jungzl commented Jan 10, 2026

Uh oh!

Jungzl commented Jan 12, 2026

Uh oh!

Jungzl commented Jan 12, 2026

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

3 participants

Jungzl commented Jan 9, 2026 •

edited

Loading

netlify bot commented Jan 9, 2026 •

edited

Loading

pkg-pr-new bot commented Jan 9, 2026 •

edited

Loading