import { defineAction } from "codeup";

// https://eslint.org/docs/latest/use/configure/configuration-files

const ESLINT_CONFIG_FILES = [

"eslint.config.js",

"eslint.config.mjs",

"eslint.config.cjs",

"eslint.config.ts",

"eslint.config.mts",

"eslint.config.cts",

".eslintrc",

".eslintrc.js",

".eslintrc.cjs",

".eslintrc.yaml",

".eslintrc.yml",

".eslintrc.json",

".eslintignore",

];

export default defineAction({

meta: {

name: "oxlint",

description: "Switch from ESLint to oxlint",

date: "2026-01-29",

},

async filter({ utils }) {

// Only apply if an eslint config exists

return (

(await utils.existsWithAnyExt("eslint.config")) || (await utils.existsWithAnyExt(".eslintrc"))

);

},

async apply({ utils }) {

// Remove eslint from devDependencies

const packageJson = await utils.readPackageJSON();

if (packageJson?.devDependencies?.eslint) {

await utils.removeDependency("eslint");

}

// Remove all eslint config files

for (const file of ESLINT_CONFIG_FILES) {

await utils.remove(file);

}

// Create .oxlintrc.json config

await utils.write(

".oxlintrc.json",

JSON.stringify(

{

$schema: "https://unpkg.com/oxlint/configuration_schema.json",

plugins: ["unicorn", "typescript", "oxc"],

rules: {},

},

null,

2,

),

{ skipIfExists: true },

);

// Install oxlint as dev dependency

await utils.addDevDependency("oxlint");

// Update package.json scripts to use oxlint instead of eslint

await utils.updatePackageJSON((pkg) => {

if (!pkg.scripts) {

return;

}

for (const name of ["lint", "lint:fix", "format"]) {

if (pkg.scripts[name]) {

// Replace eslint --fix with oxlint --fix

pkg.scripts[name] = pkg.scripts[name].replace(/eslint\s+--fix\b/g, "oxlint --fix");

// Replace eslint with oxlint (for non --fix cases)

pkg.scripts[name] = pkg.scripts[name].replace(/eslint(?!\s+--fix)\b/g, "oxlint");

}

}

});

// Run oxlint --fix to apply fixes

await utils.runPackageManagerCommand("oxlint --fix");

},

});