.eslintrc.json

{
  "root": true,
  "extends": "babel",
  "plugins": ["prettier", "@babel/development"],
  "rules": {
    "prettier/prettier": "error"
  },
  "env": {
    "node": true
  },
  "overrides": [
    {
      "files": ["packages/*/src/**/*.js", "codemods/*/src/**/*.js"],
      "rules": {
        "@babel/development/no-undefined-identifier": "error",
        "@babel/development/no-deprecated-clone": "error"
      }
    },
    {
      "files": [
        "packages/*/test/**/*.js",
        "codemods/*/test/**/*.js",
        "packages/babel-helper-transform-fixture-test-runner/src/helpers.js",
        "test/**/*.js"
      ],
      "env": {
        "jest": true
      }
    },
    {
      "files": ["packages/babel-plugin-*/src/index.js"],
      "excludedFiles": ["packages/babel-plugin-transform-regenerator/**/*.js"],
      "rules": {
        "@babel/development/plugin-name": "error"
      }
    }
  ]
}