When using the defineConfig function, the fmt configuration item does not take effect #825

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1. FrontEndDog

   added the

   Bug

   issue type on Mar 13, 2026
2. xMikuzoo commented on Mar 13, 2026

   

   xMikuzoo

   on Mar 13, 2026

   More actions

   Same issue. In my case I need the function form to access mode for conditionally loading plugins:

   export default defineConfig(({ mode }) => ({
     fmt: { ... },
     lint: { ... },
     staged: { "*": "vp check --fix" },
     plugins: [
       mode === "production" && somePlugin({ ... }),
     ],
   }));

   Failed to load configuration file.
   Expected a `fmt` field in the default export of vite.config.ts
   

   Switching to a static object works around it, but I'm not sure how to access mode without the function form.

   vp v0.1.11, Windows, npm@11.11.1
3. fengmk2

   assigned

   fengmk2

   and

   leaysgur

   and unassigned

   fengmk2

   on Mar 14, 2026
4. CSY54 commented on Mar 15, 2026

   

   CSY54

   on Mar 15, 2026

   Last edited by CSY54

   More actions

   It looks like vp lint also has the same issue as vp fmt when the configuration is written in function form.

   // vite.config.ts
   import { defineConfig } from "vite-plus";
   
   export default defineConfig(({ mode }) => ({
     staged: {
       "*": "vp check --fix",
     },
     lint: { options: { typeAware: true, typeCheck: true } },
     fmt: {
       semi: false,
       singleQuote: true,
     },
   }));

   ❯  vp fmt
   VITE+ - The Unified Toolchain for the Web
   
   Failed to load configuration file.
   Expected a `fmt` field in the default export of vite.config.ts
   
   ❯  vp lint
   VITE+ - The Unified Toolchain for the Web
   
   Failed to parse oxlint configuration file.
   
     × Expected a `lint` field in the default export of vite.config.ts
   
5. leaysgur commented on Mar 16, 2026

   

   leaysgur

   on Mar 16, 2026

   Contributor

   More actions

   Thank you for the report~!
   Please use this link for tracking purposes going forward.

   #930
6. leaysgur

   closed this as a duplicateof lint,fmt: Known vite.config.ts releated issues #930 on Mar 16, 2026