Update eslint from 8.57.1 to 10.0.3 with flat config migration

ESLint 10 drops the legacy eslintrc format, so migrate to flat config.
- Replace .eslintrc.json and .eslintignore with eslint.config.js
- Remove eslint-plugin-github (incompatible with eslint 10; its internal
  config only provided 3 DOM rules unused by this project)
- Update @typescript-eslint/* to 8.57.2 and eslint-plugin-jest to 29.x
- Add globals package for environment globals in flat config
This commit is contained in:
Jim Kane 2026-03-25 14:06:45 -05:00
parent 21c6681597
commit 9afa3450dd
5 changed files with 446 additions and 3217 deletions

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dist/
lib/
node_modules/

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{
"plugins": ["jest", "@typescript-eslint"],
"extends": ["plugin:github/internal"],
"parser": "@typescript-eslint/parser",
"parserOptions": {
"ecmaVersion": 9,
"sourceType": "module",
"project": "./tsconfig.json"
},
"rules": {
"eslint-comments/no-use": "off",
"import/no-namespace": "off",
"no-unused-vars": "off",
"@typescript-eslint/no-unused-vars": "error",
"@typescript-eslint/explicit-member-accessibility": ["error", {"accessibility": "no-public"}],
"@typescript-eslint/no-require-imports": "error",
"@typescript-eslint/array-type": "error",
"@typescript-eslint/await-thenable": "error",
"camelcase": "off",
"@typescript-eslint/explicit-function-return-type": ["error", {"allowExpressions": true}],
"@typescript-eslint/no-array-constructor": "error",
"@typescript-eslint/no-empty-object-type": "error",
"@typescript-eslint/no-explicit-any": "off",
"@typescript-eslint/no-extraneous-class": "error",
"@typescript-eslint/no-for-in-array": "error",
"@typescript-eslint/no-inferrable-types": "error",
"@typescript-eslint/no-misused-new": "error",
"@typescript-eslint/no-namespace": "error",
"@typescript-eslint/no-non-null-assertion": "warn",
"@typescript-eslint/no-unnecessary-qualifier": "error",
"@typescript-eslint/no-unnecessary-type-assertion": "error",
"@typescript-eslint/no-useless-constructor": "error",
"@typescript-eslint/prefer-for-of": "warn",
"@typescript-eslint/prefer-function-type": "warn",
"@typescript-eslint/prefer-includes": "error",
"@typescript-eslint/prefer-string-starts-ends-with": "error",
"@typescript-eslint/promise-function-async": ["error", { "allowAny": true }],
"@typescript-eslint/require-array-sort-compare": "error",
"@typescript-eslint/restrict-plus-operands": "error",
"semi": "off",
"@typescript-eslint/unbound-method": "error"
},
"env": {
"node": true,
"es6": true,
"jest/globals": true
}
}

60
eslint.config.js Normal file
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import tsParser from '@typescript-eslint/parser'
import tsPlugin from '@typescript-eslint/eslint-plugin'
import jestPlugin from 'eslint-plugin-jest'
import globals from 'globals'
export default [
{
ignores: ['dist/', 'lib/', 'node_modules/']
},
{
files: ['src/**/*.ts'],
languageOptions: {
parser: tsParser,
parserOptions: {
ecmaVersion: 9,
sourceType: 'module',
project: './tsconfig.json'
},
globals: {
...globals.node,
...globals.es2021
}
},
plugins: {
'@typescript-eslint': tsPlugin,
jest: jestPlugin
},
rules: {
'no-unused-vars': 'off',
'@typescript-eslint/no-unused-vars': 'error',
'@typescript-eslint/explicit-member-accessibility': ['error', {accessibility: 'no-public'}],
'@typescript-eslint/no-require-imports': 'error',
'@typescript-eslint/array-type': 'error',
'@typescript-eslint/await-thenable': 'error',
camelcase: 'off',
'@typescript-eslint/explicit-function-return-type': ['error', {allowExpressions: true}],
'@typescript-eslint/no-array-constructor': 'error',
'@typescript-eslint/no-empty-object-type': 'error',
'@typescript-eslint/no-explicit-any': 'off',
'@typescript-eslint/no-extraneous-class': 'error',
'@typescript-eslint/no-for-in-array': 'error',
'@typescript-eslint/no-inferrable-types': 'error',
'@typescript-eslint/no-misused-new': 'error',
'@typescript-eslint/no-namespace': 'error',
'@typescript-eslint/no-non-null-assertion': 'warn',
'@typescript-eslint/no-unnecessary-qualifier': 'error',
'@typescript-eslint/no-unnecessary-type-assertion': 'error',
'@typescript-eslint/no-useless-constructor': 'error',
'@typescript-eslint/prefer-for-of': 'warn',
'@typescript-eslint/prefer-function-type': 'warn',
'@typescript-eslint/prefer-includes': 'error',
'@typescript-eslint/prefer-string-starts-ends-with': 'error',
'@typescript-eslint/promise-function-async': ['error', {allowAny: true}],
'@typescript-eslint/require-array-sort-compare': 'error',
'@typescript-eslint/restrict-plus-operands': 'error',
semi: 'off',
'@typescript-eslint/unbound-method': 'error'
}
}
]

3542
package-lock.json generated

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"@types/js-yaml": "^4.0.9",
"@types/node": "^25.3.5",
"@types/picomatch": "^4.0.2",
"@typescript-eslint/eslint-plugin": "^8.57.0",
"@typescript-eslint/parser": "^8.57.0",
"@typescript-eslint/eslint-plugin": "^8.57.2",
"@typescript-eslint/parser": "^8.57.2",
"@vercel/ncc": "^0.38.4",
"eslint": "^8.57.0",
"eslint-plugin-github": "^5.1.8",
"eslint-plugin-jest": "^28.11.0",
"eslint": "10.0.3",
"eslint-plugin-jest": "^29.15.1",
"globals": "^16.0.0",
"jest": "^30.2.0",
"jest-circus": "^30.2.0",
"js-yaml": "^4.1.0",