feat: support ESLint 8.x

BREAKING CHANGE: Requires ESLint@^7.0.0 || ^8.0.0

Author: MichaelDeBoey

.travis.yml

@@ -10,18 +10,7 @@ node_js:
 before_install:
   - npm config set depth 0
 before_script: >
-  node_version=$(node -v);
-  if [ ${node_version:3:1} = "." ]; then
-    echo "Node 10+"
-    if [ ${ESLINT} = "6" ]; then
-      npm install --legacy-peer-deps --no-save "eslint@${ESLINT}" [email protected]
-    else
-      npm install --legacy-peer-deps --no-save "eslint@${ESLINT}"
-    fi
-    else
-      echo "Node 8+"
-      npm install --legacy-peer-deps --no-save "eslint@${ESLINT}" [email protected] [email protected] [email protected]
-  fi
+  npm install --legacy-peer-deps --no-save "eslint@${ESLINT}"
 notifications:
   email: false
 script:
@@ -30,16 +19,13 @@ script:
   - npm run build
 env:
   jobs:
+    - ESLINT=8
     - ESLINT=7
-    - ESLINT=6
 jobs:
   fast_finish: true
   include:
     - node_js: 'lts/*'
       env: LINT=true
-  exclude:
-    - node_js: 8
-      env: ESLINT=7
 after_success:
   - export NODE_ENV=production
   - npm run build

package.json

@@ -26,12 +26,12 @@
     "@babel/preset-env": "^7.15.8",
     "@babel/register": "^7.15.3",
     "@hkdobrev/run-if-changed": "^0.3.1",
-    "@typescript-eslint/parser": "^4.33.0",
+    "@typescript-eslint/parser": "^5.0.0-0",
     "babel-plugin-add-module-exports": "^1.0.4",
     "babel-plugin-istanbul": "^6.0.0",
     "chai": "^4.3.4",
     "cross-env": "^7.0.3",
-    "eslint": "7.32.0",
+    "eslint": "^8.0.0",
     "eslint-config-canonical": "^28.0.0",
     "gitdown": "^3.1.4",
     "glob": "^7.2.0",
@@ -65,7 +65,7 @@
   "main": "./dist/index.js",
   "name": "eslint-plugin-jsdoc",
   "peerDependencies": {
-    "eslint": "^6.0.0 || ^7.0.0"
+    "eslint": "^7.0.0 || ^8.0.0"
   },
   "repository": {
     "type": "git",

src/rules/checkExamples.js

@@ -1,8 +1,5 @@
-// Todo: When peerDeps bump to ESLint 7, see about replacing `CLIEngine`
-//  with non-deprecated `ESLint` class:
-// https://github.com/eslint/eslint/blob/master/docs/user-guide/migrating-to-7.0.0.md#-the-cliengine-class-has-been-deprecated
 import {
-  CLIEngine,
+  ESLint,
 } from 'eslint';
 import iterateJsdoc from '../iterateJsdoc';
 
@@ -172,16 +169,16 @@ export default iterateJsdoc(({
       if (matchingFileNameMap.has(fileNameMapKey)) {
         cliFile = matchingFileNameMap.get(fileNameMapKey);
       } else {
-        const cli = new CLIEngine(cliConfig);
+        const cli = new ESLint(cliConfig);
         let config;
         if (filename || checkEslintrc) {
-          config = cli.getConfigForFile(file);
+          config = cli.calculateConfigForFile(file);
         }
 
         // We need a new instance to ensure that the rules that may only
         //  be available to `file` (if it has its own `.eslintrc`),
         //  will be defined.
-        cliFile = new CLIEngine({
+        cliFile = new ESLint({
           allowInlineConfig,
           baseConfig: {
             ...baseConfig,
@@ -196,8 +193,7 @@ export default iterateJsdoc(({
         matchingFileNameMap.set(fileNameMapKey, cliFile);
       }
 
-      const {results: [{messages}]} =
-        cliFile.executeOnText(src);
+      const {results: [{messages}]} = cliFile.lintText(src);
 
       if (!('line' in tag)) {
         tag.line = tag.source[0].number;

test/rules/assertions/requireJsdoc.js

@@ -2,10 +2,6 @@
  * @see https://github.com/eslint/eslint/blob/master/tests/lib/rules/require-jsdoc.js
  */
 
-import {
-  CLIEngine,
-} from 'eslint';
-
 export default {
   invalid: [
     {
@@ -3016,15 +3012,7 @@ function quux (foo) {
         },
       ],
       options: [{
-        contexts: [
-          // Only fixed to support `:has()` with TS later in ESLint 7, but
-          //  for our testing of ESLint 6, we use `>` which is equivalent in
-          //  this case; after having peerDeps. to ESLint 7+, we can remove
-          //  this check and use of `CLIEngine`
-          CLIEngine.version.startsWith('6') ?
-            'ClassProperty > Decorator[expression.callee.name="Input"]' :
-            'ClassProperty:has(Decorator[expression.callee.name="Input"])',
-        ],
+        contexts: ['ClassProperty > Decorator[expression.callee.name="Input"]'],
       }],
       output: `
       export class MyComponentComponent {