feat: support ESLint 8.x

BREAKING CHANGE: Requires ESLint@^7.23.0 || ^8.0.0

Author: MichaelDeBoey

.travis.yml

@@ -3,7 +3,7 @@ dist: focal
 arch: arm64-graviton2
 language: node_js
 node_js:
-  - 10
+  - 12
 script:
   - npm run test
 after_success:

README.md

@@ -174,10 +174,10 @@ This is how Canonical ruleset compares to other popular configurations.
 |[`ava/use-t-well`](https://github.com/avajs/eslint-plugin-ava/blob/master/docs/rules/use-t-well.md)|error 🚨|N/A 👻|N/A 👻|N/A 👻|
 |[`ava/use-test`](https://github.com/avajs/eslint-plugin-ava/blob/master/docs/rules/use-test.md)|error 🚨|N/A 👻|N/A 👻|N/A 👻|
 |[`ava/use-true-false`](https://github.com/avajs/eslint-plugin-ava/blob/master/docs/rules/use-true-false.md)|error 🚨|N/A 👻|N/A 👻|N/A 👻|
-|`babel/new-cap`|off|N/A 👻|N/A 👻|N/A 👻|
-|`babel/no-invalid-this`|error 🚨|N/A 👻|N/A 👻|N/A 👻|
-|`babel/object-curly-spacing`|error 🚨|N/A 👻|N/A 👻|N/A 👻|
-|`babel/valid-typeof`|error 🚨|N/A 👻|N/A 👻|N/A 👻|
+|`@babel/new-cap`|off|N/A 👻|N/A 👻|N/A 👻|
+|`@babel/no-invalid-this`|error 🚨|N/A 👻|N/A 👻|N/A 👻|
+|`@babel/object-curly-spacing`|error 🚨|N/A 👻|N/A 👻|N/A 👻|
+|`@babel/valid-typeof`|error 🚨|N/A 👻|N/A 👻|N/A 👻|
 |[`block-scoped-var`](https://eslint.org/docs/rules/block-scoped-var)|error 🚨|error 🚨|N/A 👻|N/A 👻|
 |[`block-spacing`](https://eslint.org/docs/rules/block-spacing)|error 🚨|error 🚨|error 🚨|error 🚨|
 |[`brace-style`](https://eslint.org/docs/rules/brace-style)|error 🚨|error 🚨|error 🚨|error 🚨|

configurations/eslintrc.json

@@ -20,7 +20,7 @@
     "sort-keys-fix",
     "fp",
     "no-use-extend-native",
-    "babel",
+    "@babel",
     "import",
     "jsdoc",
     "promise",
@@ -55,13 +55,13 @@
         "before": true
       }
     ],
-    "babel/new-cap": 0,
-    "babel/no-invalid-this": 2,
-    "babel/object-curly-spacing": [
+    "@babel/new-cap": 0,
+    "@babel/no-invalid-this": 2,
+    "@babel/object-curly-spacing": [
       2,
       "never"
     ],
-    "babel/valid-typeof": 2,
+    "@babel/valid-typeof": 2,
     "block-scoped-var": 2,
     "block-spacing": [
       2,

package.json

@@ -18,38 +18,38 @@
     ]
   },
   "dependencies": {
-    "@babel/eslint-parser": "^7.13.14",
-    "@typescript-eslint/eslint-plugin": "^4.22.0",
-    "@typescript-eslint/parser": "^4.22.0",
-    "eslint-plugin-ava": "^12.0.0",
-    "eslint-plugin-babel": "^5.3.1",
-    "eslint-plugin-cypress": "^2.11.2",
+    "@babel/eslint-parser": "^7.15.8",
+    "@babel/eslint-plugin": "^7.14.5",
+    "@typescript-eslint/eslint-plugin": "^5.0.0-0",
+    "@typescript-eslint/parser": "^5.0.0-0",
+    "eslint-plugin-ava": "^13.0.0",
+    "eslint-plugin-cypress": "^2.12.1",
     "eslint-plugin-eslint-comments": "^3.2.0",
     "eslint-plugin-filenames": "^1.3.2",
-    "eslint-plugin-flowtype": "^5.7.1",
+    "eslint-plugin-flowtype": "^6.1.0",
     "eslint-plugin-fp": "^2.3.0",
-    "eslint-plugin-import": "^2.22.1",
-    "eslint-plugin-jest": "^24.3.5",
-    "eslint-plugin-jsdoc": "^32.3.0",
-    "eslint-plugin-lodash": "^7.2.0",
-    "eslint-plugin-mocha": "^8.1.0",
+    "eslint-plugin-import": "^2.24.2",
+    "eslint-plugin-jest": "^25.0.1",
+    "eslint-plugin-jsdoc": "^36.1.1",
+    "eslint-plugin-lodash": "^7.3.0",
+    "eslint-plugin-mocha": "^9.0.0",
     "eslint-plugin-modules-newline": "0.0.6",
     "eslint-plugin-no-use-extend-native": "^0.5.0",
     "eslint-plugin-node": "^11.1.0",
     "eslint-plugin-promise": "^5.1.0",
-    "eslint-plugin-react": "^7.23.2",
+    "eslint-plugin-react": "^7.26.1",
     "eslint-plugin-react-hooks": "^4.2.0",
-    "eslint-plugin-sort-keys-fix": "^1.1.1",
+    "eslint-plugin-sort-keys-fix": "^1.1.2",
     "eslint-plugin-typescript-sort-keys": "^1.8.0",
-    "eslint-plugin-unicorn": "^30.0.0"
+    "eslint-plugin-unicorn": "^36.0.0"
   },
   "description": "Canonical ESLint Shareable Config",
   "devDependencies": {
     "@ava/babel": "^1.0.1",
-    "@babel/core": "^7.13.16",
-    "@babel/register": "^7.13.16",
+    "@babel/core": "^7.15.8",
+    "@babel/register": "^7.15.3",
     "ava": "^3.15.0",
-    "eslint": "^7.24.0",
+    "eslint": "^8.0.0",
     "husky": "^4.3.8",
     "jsonlint": "^1.6.3",
     "semantic-release": "^17.4.2"
@@ -71,7 +71,7 @@
   "main": "./eslintrc.js",
   "name": "eslint-config-canonical",
   "peerDependencies": {
-    "eslint": "^6.0.0 || ^7.0.0"
+    "eslint": "^7.23.0 || ^8.0.0"
   },
   "repository": {
     "type": "git",

test/eslint-config-canonical/canonical.js

@@ -1,5 +1,5 @@
 const test = require('ava');
-const CLIEngine = require('eslint').CLIEngine;
+const {ESLint} = require('eslint');
 
 const configurations = [
   'ava',
@@ -16,8 +16,8 @@ for (const configuration of configurations) {
   // eslint-disable-next-line import/no-dynamic-require -- Safe as for testing
   const config = require('../../' + configuration);
 
-  const rulesDefinition = new CLIEngine({
-    configFile: './' + configuration + '.js',
+  const rulesDefinition = new ESLint({
+    overrideConfigFile: './' + configuration + '.js',
     useEslintrc: false,
   })
     .getRules();