feat(oxfmt): Support `vite.config.*` `.fmt` field by leaysgur · Pull Request #20197 · oxc-project/oxc

leaysgur · 2026-03-10T13:39:48Z

NOTE: I'll do a self-review and add the test tomorrow.

Prompt

# Support `vite.config.*` as a Configuration File

## Target Files

- `vite.config.ts`
- `vite.config.mts`
- `vite.config.cts`
- `vite.config.js`
- `vite.config.mjs`
- `vite.config.cjs`

## Auto-Discovery Priority

When searching for a config file from `cwd` upwards, the following priority applies within the same directory:

1. Tool-specific JSON/JSONC config files (e.g. `.oxfmtrc.json`, `.oxlintrc.json`)
2. Tool-specific JS/TS config files (e.g. `oxfmt.config.ts`, `oxlint.config.ts`)
3. `vite.config.*`

## Extracting Configuration

The default export of `vite.config.*` is expected to contain tool-specific configuration under a dedicated field:

- oxfmt: `.fmt`
- oxlint: `.lint`

If the field does not exist, an error is returned (e.g. `Expected a 'fmt' field in the default export.`).

## Explicit `--config` Flag

When `--config vite.config.ts` is explicitly specified, the same behavior applies. The file name is used to determine whether to extract a nested field.

## LSP

`vite.config.*` files are added to the file watch patterns so that configuration changes trigger a reload.

leaysgur · 2026-03-10T13:40:04Z

refactor(oxfmt): Limit auto discover oxfmt.config."ts" only #20216
feat(oxlint): Support vite.config.ts .lint field #20214
feat(oxfmt): Support vite.config.* .fmt field #20197 👈 (View in Graphite)
feat(oxfmt): .js/.ts config file support #20135 : 1 other dependent PR (#20138 )
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apps/oxfmt/test/lsp/init/init.test.ts

graphite-app · 2026-03-11T04:34:35Z

Merge activity

Mar 11, 4:34 AM UTC: leaysgur added this pull request to the Graphite merge queue.
Mar 11, 4:46 AM UTC: Merged by the Graphite merge queue.

NOTE: I'll do a self-review and add the test tomorrow. <details> <summary>Prompt</summary> ``` # Support `vite.config.*` as a Configuration File ## Target Files - `vite.config.ts` - `vite.config.mts` - `vite.config.cts` - `vite.config.js` - `vite.config.mjs` - `vite.config.cjs` ## Auto-Discovery Priority When searching for a config file from `cwd` upwards, the following priority applies within the same directory: 1. Tool-specific JSON/JSONC config files (e.g. `.oxfmtrc.json`, `.oxlintrc.json`) 2. Tool-specific JS/TS config files (e.g. `oxfmt.config.ts`, `oxlint.config.ts`) 3. `vite.config.*` ## Extracting Configuration The default export of `vite.config.*` is expected to contain tool-specific configuration under a dedicated field: - oxfmt: `.fmt` - oxlint: `.lint` If the field does not exist, an error is returned (e.g. `Expected a 'fmt' field in the default export.`). ## Explicit `--config` Flag When `--config vite.config.ts` is explicitly specified, the same behavior applies. The file name is used to determine whether to extract a nested field. ## LSP `vite.config.*` files are added to the file watch patterns so that configuration changes trigger a reload. ``` </details>

# Oxlint ### 🚀 Features - 04a5ce0 oxlint: Support `vite.config.ts` `.lint` field (#20214) (leaysgur) - 1735215 linter: Implement `react/no-clone-element` rule. (#20129) (connorshea) - 68e6f6f linter: Implement `react/no-react-children` rule. (#20104) (connorshea) - fe3b32e linter/plugins: Add `oxlint-plugin-eslint` package (#20009) (overlookmotel) ### 🐛 Bug Fixes - 05f6a09 linter/no-inline-comments: Deserialize rule options with serde (#20207) (camc314) - c7eb09d linter/default-case: Deserialize rule options with serde (#20206) (camc314) - f85e16c linter/plugins: Fix types for visitor compilation (#20203) (overlookmotel) - 44e24e0 linter/exhaustive-deps: Ignore type-only typeof deps (#20201) (camc314) - 0b04998 linter/no-fallthrough: Deserialize rule options with serde (#20192) (camc314) - a1031cb linter/new-cap: Deserialize rule options with serde (#20161) (camc314) - ad27fd6 linter: Add help messages to import plugin diagnostics (#20158) (John Costa) - 1340307 linter/plugins: Ensure `after` hooks always run (#20167) (overlookmotel) - c4812ec linter/plugins: Reset visitor compilation state if error during compilation (#20166) (overlookmotel) - 887eecc linter/plugins: Add license notice to `oxlint-plugin-eslint` package (#20164) (overlookmotel) - e1713a4 linter/plugins: Include common chunks in `oxlint-plugin-eslint` package (#20163) (overlookmotel) - a9acb2b linter: Check `globals` entry for `no-undef`, only check es2026 globals for `no-extend-native` and `no-constant-binary-expression` (#20089) (Sysix) - 5559f0d linter/no-unused-vars: `reportUsedIgnorePattern` should not report used rest siblings (#20108) (Don Isaac) - de7c0e2 linter/plugins: Correct error message for `markVariableAsUsed` (#20152) (overlookmotel) ### ⚡ Performance - 3a86427 linter/plugins: Pre-populate cache of `EnterExit` objects at startup (#20194) (overlookmotel) - d243391 linter/plugins: Replace arrays with `Uint8Array`s (#20190) (overlookmotel) - 8742f8b linter/plugins: Pre-populate cache of `VisitProp` objects (#20189) (overlookmotel) - 3061acb linter/plugins: Pre-populate cache of `EnterExit` objects (#20187) (overlookmotel) - c73912b linter/plugins: Free visit functions earlier (#20186) (overlookmotel) - d9f8ff4 linter/plugins: Faster reset of visitor state (#20185) (overlookmotel) - 42aff15 oxlint/lsp: Avoid computing diagnostics for non invoked code actions requests (#20080) (Sysix) ### 📚 Documentation - a080650 linter/plugins: Fix documentation of visitor compilation (#20202) (overlookmotel) - 542a04a linter: Add a link to the cyclomatic complexity Wikipedia article in `eslint/complexity` (#20174) (connorshea) # Oxfmt ### 🚀 Features - 95943aa oxfmt: Support `vite.config.*` `.fmt` field (#20197) (leaysgur) - 172fc07 oxfmt: .js/.ts config file support (#20135) (leaysgur) ### 🐛 Bug Fixes - e483569 oxfmt: Avoid double-escaping in css-in-js (#20211) (leaysgur) Co-authored-by: leaysgur <6259812+leaysgur@users.noreply.github.com>

github-actions bot added A-cli Area - CLI A-formatter Area - Formatter C-enhancement Category - New feature or request labels Mar 10, 2026

leaysgur changed the title ~~feat(oxfmt): Support vite.config.*.fmt field~~ feat(oxfmt): Support vite.config.*.fmt field Mar 10, 2026

This was referenced Mar 10, 2026

feat(oxfmt): .js/.ts config file support #20135

Merged

feat(oxfmt): Add --config-field CLI option #20138

Closed

Make oxc-vscode work with Vite+ environments voidzero-dev/vite-plus#629

Closed

Sysix reviewed Mar 10, 2026

View reviewed changes

apps/oxfmt/test/lsp/init/init.test.ts Show resolved Hide resolved

leaysgur force-pushed the 03-10-feat_oxfmt_support_vite.config._.fmt_field branch from b7cec73 to 586f4f8 Compare March 11, 2026 02:22

leaysgur force-pushed the 03-09-feat_oxfmt_.js_.ts_config_file_support branch from 6a74e82 to 49e7843 Compare March 11, 2026 02:22

leaysgur marked this pull request as ready for review March 11, 2026 02:23

leaysgur force-pushed the 03-10-feat_oxfmt_support_vite.config._.fmt_field branch 2 times, most recently from 1f9ffaa to dc728ae Compare March 11, 2026 03:03

This was referenced Mar 11, 2026

feat(oxlint): Support vite.config.ts .lint field #20214

Merged

refactor(oxfmt): Limit auto discover oxfmt.config."ts" only #20216

Merged

leaysgur changed the title ~~feat(oxfmt): Support vite.config.*.fmt field~~ feat(oxfmt): Support vite.config.* .fmt field Mar 11, 2026

graphite-app bot added the 0-merge Merge with Graphite Merge Queue label Mar 11, 2026

graphite-app bot force-pushed the 03-09-feat_oxfmt_.js_.ts_config_file_support branch from 49e7843 to 172fc07 Compare March 11, 2026 04:34

graphite-app bot force-pushed the 03-10-feat_oxfmt_support_vite.config._.fmt_field branch from dc728ae to 95943aa Compare March 11, 2026 04:35

Base automatically changed from 03-09-feat_oxfmt_.js_.ts_config_file_support to main March 11, 2026 04:45

graphite-app bot removed the 0-merge Merge with Graphite Merge Queue label Mar 11, 2026

graphite-app bot merged commit 95943aa into main Mar 11, 2026
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graphite-app bot deleted the 03-10-feat_oxfmt_support_vite.config._.fmt_field branch March 11, 2026 04:46

Boshen mentioned this pull request Mar 11, 2026

release(apps): oxlint v1.53.0 && oxfmt v0.38.0 #20218

Merged

miyaoka mentioned this pull request Mar 14, 2026

Revert oxfmt to 0.37.0 miyaoka/orkis#73

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feat(oxfmt): Support `vite.config.*` `.fmt` field#20197

feat(oxfmt): Support `vite.config.*` `.fmt` field#20197
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03-10-feat_oxfmt_support_vite.config._.fmt_field

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