Migrate to oxc from Biome by tdeekens · Pull Request #2115 · tdeekens/flopflip

tdeekens · 2026-02-21T20:06:12Z

Summary

changeset-bot · 2026-02-21T20:06:15Z

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Latest commit: 4f4874b

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Replace Biome with OXC toolchain for linting and formatting: - oxlint for linting with rules mirroring the existing Biome config - oxfmt for formatting with matching style (single quotes, 80 width, trailing commas) - Enable suspicious category at warn level for additional code quality checks - Add eqeqeq (smart mode for null checks), no-console, import/no-duplicates - Disable react-in-jsx-scope (React 19 JSX transform) - Configure no-unused-vars to allow _ prefixed params (convention) - Convert 25 biome-ignore comments to oxlint equivalents (7 removed as unneeded) - Update CI, lint-staged, VS Code settings accordingly

socket-security · 2026-02-21T20:14:59Z

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	oxfmt@0.34.0
	oxlint@1.49.0

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socket-security · 2026-02-21T20:15:01Z

Warning

Review the following alerts detected in dependencies.

According to your organization's Security Policy, it is recommended to resolve "Warn" alerts. Learn more about Socket for GitHub.

Action	Severity	Alert (click "▶" to expand/collapse)
Warn		Obfuscated code: npm `oxlint` is 97.0% likely obfuscated Confidence: 0.97 Location: Package overview From: package.json → `npm/oxlint@1.49.0` ℹ Read more on: This package \| This alert \| What is obfuscated code? Next steps: Take a moment to review the security alert above. Review the linked package source code to understand the potential risk. Ensure the package is not malicious before proceeding. If you're unsure how to proceed, reach out to your security team or ask the Socket team for help at `support@socket.dev`. Suggestion: Packages should not obfuscate their code. Consider not using packages with obfuscated code. Mark the package as acceptable risk. To ignore this alert only in this pull request, reply with the comment `@SocketSecurity ignore npm/oxlint@1.49.0`. You can also ignore all packages with `@SocketSecurity ignore-all`. To ignore an alert for all future pull requests, use Socket's Dashboard to change the triage state of this alert.

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codecov · 2026-02-21T20:15:29Z

Codecov Report

❌ Patch coverage is 92.00000% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 92.95%. Comparing base (68e96f8) to head (4f4874b).
⚠️ Report is 1 commits behind head on main.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
packages/react-broadcast/src/configure.tsx	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2115      +/-   ##
==========================================
- Coverage   92.96%   92.95%   -0.01%     
==========================================
  Files          73       73              
  Lines        1478     1477       -1     
  Branches      259      256       -3     
==========================================
- Hits         1374     1373       -1     
  Misses         94       94              
  Partials       10       10

Files with missing lines	Coverage Δ
packages/adapter-utilities/src/normalize-flag.ts	`100.00% <ø> (ø)`
packages/adapter-utilities/src/normalize-flags.ts	`100.00% <100.00%> (ø)`
packages/cache/src/cache.ts	`91.66% <ø> (ø)`
packages/combine-adapters/src/adapter.ts	`91.11% <100.00%> (ø)`
packages/graphql-adapter/src/adapter.ts	`83.20% <ø> (-0.14%)`	⬇️
packages/http-adapter/src/adapter.ts	`82.78% <ø> (ø)`
packages/launchdarkly-adapter/src/adapter.ts	`94.54% <100.00%> (ø)`
packages/localstorage-adapter/src/adapter.ts	`92.63% <ø> (ø)`
packages/memory-adapter/src/adapter.ts	`97.36% <ø> (ø)`
...s/react-broadcast/src/branch-on-feature-toggle.tsx	`100.00% <ø> (ø)`
... and 40 more

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- Change `import type React` to `import React` in 7 files across react-broadcast and react-redux where React is used as a JSX value - Format tooling/test-utils/package.json with oxfmt (key reordering)

Copilot

Pull request overview

This pull request migrates the project's linting and formatting infrastructure from Biome to oxc (oxlint and oxfmt). The changes include removing Biome configuration, adding oxc configuration files, updating all lint directive comments throughout the codebase, applying consistent formatting changes, and reordering package.json fields to match oxfmt's conventions.

Changes:

Replaced Biome with oxc tooling (oxlint and oxfmt)
Updated all lint suppression comments from biome-ignore to oxlint-disable syntax
Applied consistent formatting changes (trailing commas, blank lines, quote normalization)
Reordered package.json fields across all packages for consistency
Updated scripts, workflows, and IDE configuration

Reviewed changes

Copilot reviewed 142 out of 143 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
biome.json	Removed Biome configuration
.oxlintrc.json	Added oxlint configuration with rules and plugins
.oxfmtrc.json	Added oxfmt formatting configuration
.vscode/settings.json	Updated to use oxc-vscode extension
lint-staged.config.mjs	Updated to use oxlint and oxfmt instead of biome
package.json	Updated scripts and dependencies; reordered fields
packages/*/package.json	Standardized field ordering across all packages
packages//src/.ts(x)	Updated lint comments; added trailing commas and blank lines
packages//test/.js(x)	Updated lint comments; formatting adjustments
packages/splitio-adapter/src/adapter.ts	Simplified conditional logic in normalizeFlag function
packages/react-broadcast/src/use-all-feature-toggles.ts	Changed .reverse() to .toReversed()
packages/react-redux/src/use-all-feature-toggles.ts	Changed .reverse() to .toReversed()
packages/react-broadcast/src/test-provider.tsx	Removed unnecessary spread operator
packages/graphql-adapter/src/adapter.ts	Simplified optional chaining
readme.md	Quote style normalization; table formatting
openspec/*.md	Markdown formatting adjustments

Files not reviewed (1)

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…lint config

tdeekens added 2 commits February 21, 2026 21:11

chore: format

1e9b690

tdeekens force-pushed the chore/migrate-biome-to-oxc branch from 30c9a6b to 1e9b690 Compare February 21, 2026 20:14

fix: resolve CI failures from OXC migration

15ceb41

- Change `import type React` to `import React` in 7 files across react-broadcast and react-redux where React is used as a JSX value - Format tooling/test-utils/package.json with oxfmt (key reordering)

tdeekens requested a review from Copilot February 21, 2026 20:21

Copilot started reviewing on behalf of tdeekens February 21, 2026 20:21 View session

Copilot AI reviewed Feb 21, 2026

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fix: add missing eslint/oxc plugins and disable type-aware rule in ox…

4f4874b

…lint config

tdeekens merged commit 40c4eb8 into main Feb 21, 2026
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Migrate to oxc from Biome#2115

Migrate to oxc from Biome#2115
tdeekens merged 4 commits intomainfrom
chore/migrate-biome-to-oxc

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tdeekens commented Feb 21, 2026

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