Replace eslint with oxlint#4203
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trevor-scheer merged 65 commits intoMay 6, 2026
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JSON doesn't support comments; also this is a config file, not source code
First of 3 spread sites — inlining so we can remove the JS variable
Second of 3 spread sites
Third and final spread site. The .filter() removed the monaco-editor entry (it's replaced with a different message for this package).
All RESTRICTED_IMPORTS usages are now inlined, so we can drop the
variable. Also remove module.exports = { ... }; wrapper — the file
is now a plain object literal (still JS syntax, not yet valid JSON).
JSON doesn't support comments. Removed section headers, TODO notes, inline explanations, and commented-out rules.
JSON requires double-quoted keys. Used sd to add quotes to all bare JS identifiers used as object keys.
JSON requires double quotes. Fixed the apostrophe in "can't" that got caught in the replacement.
JSON doesn't allow trailing commas. The file is now valid JSON.
eslint-only option; oxlint always behaves as if root is true
eslint-only option; oxlint reports unused disable directives by default
eslint-only concept; oxlint uses plugins array instead, which enables recommended rules for each plugin automatically
eslint-only; oxlint uses its own parser and doesn't need ecmaVersion
oxlint uses a flat plugins list to enable rule sets. This replaces the eslint extends mechanism. Includes typescript, react, import, unicorn, promise, jest, and vitest.
oxlint env is a top-level config option, not per-override
oxlint globals is a top-level config option
oxlint settings (like react version detection) is a top-level option
The first override matched all code files (**.{js,jsx,ts,tsx,mts,cts})
so it was effectively global. Rules now live at the top level where
oxlint expects them. The override's plugins list is removed (handled
by the top-level plugins array added earlier).
oxlint uses "readonly"/"writable" strings instead of eslint's false/true booleans for global variable declarations
oxlint uses the shorter "typescript/" prefix for TypeScript rules
oxlint uses "import/" for import-related rules (eslint used the import-x fork plugin)
The earlier structural moves left inconsistent indentation in the overrides section. Re-formatted via json.dump for consistency.
These are all no-ops in oxlint — rules default to off unless enabled by a plugin. Includes eslint core rules, @Shopify, react/prop-types, typescript/no-require-imports, import/no-named-as-default-member, and a few unicorn rules that were explicitly disabled.
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moved from .oxlintrc.json ignorePatterns since oxlint uses --ignore-path instead
removes 15 eslint-related packages, adds oxlint + oxlint-tsgolint. updates eslint -> oxlint in all script references.
.eslintrc.js -> .oxlintrc.json in ignorePaths, add oxlint/oxlintrc to dictionary
eslint-js bridges core eslint rules, react-hooks-js bridges react-compiler
prefer-arrow-callback, object-shorthand, one-var, operator-assignment, logical-assignment-operators, no-octal-escape, no-return-await, spaced-comment, quotes
refs and set-state-in-effect disabled (stricter than old rule, pre-existing violations). native duplicates (rules-of-hooks, exhaustive-deps) disabled since they're already covered by oxlint's built-in react-hooks plugin.
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- fix react-hooks-js rule names: react-hooks v6 uses flat names (refs, set-state-in-effect, purity, etc.), not nested react-compiler/ prefix - set sonarjs replacement rules (no-void, no-useless-assignment, no-useless-return) to off — they catch real violations the sonarjs rules didn't, needs separate cleanup PR - add "run" to jest/expect-expect assertFunctionNames
Removes: - duplicates: `object-shorthand`, `operator-assignment` (kept the `eslint-js/*` versions) - formatter overlap (oxfmt owns these): `eslint-js/quotes`, `eslint-js/spaced-comment`, `unicorn/no-zero-fractions` - dead-era React: `react/no-did-mount-set-state`, `react/prefer-es6-class` - low-signal: `unicorn/no-array-for-each`, `unicorn/no-negated-condition`, `prefer-destructuring` (half-applied), `no-await-in-loop` (frequent false positives)
Was scoped to `packages/{graphiql,graphiql-react}`. Promotes to all TS files; codebase is currently free of violations under the broader scope.
Documents rules we'd like to enforce eventually but currently violate the codebase. Each TODO records the approximate violation count so progress is visible. Also drops the per-package `typescript/no-unnecessary-condition` override; that rule is silently a no-op without `--type-aware` mode and is now consolidated globally with the same TODO.
The job describes what runs (linting), independent of the underlying tool.
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Sorry it's a ton of commits, the hope was that the changes are intelligible since it's a pretty big overhaul.