chore: use eslint v9 and flat config

.github/workflows/GHPages.yml

@@ -26,8 +26,6 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
       - uses: actions/setup-node@v4
-        with:
-          node-version: 18
       - name: Install Packages
         run: npm install
       - name: Build

.github/workflows/NodeCI.yml

@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [12.x, 14.x, 16.x, 17.x]
+        node-version: [18, 20, 22]
     steps:
       - uses: actions/checkout@v4
       - name: Use Node.js ${{ matrix.node-version }}
@@ -31,16 +31,22 @@ jobs:
         run: npm install
       - name: Test
         run: npm test
-  test-with-eslint9:
+  test-with-eslint8:
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [12.x, 14.x, 16.x, 17.x]
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node-version }}
       - name: Install Target Packages
         run: |+
-          npm i -D eslint@^9.0.0-0 -f
+          npm i -D eslint@8
           npx rimraf node_modules
-          npm install -f
+          npm install
       - name: Test
         run: npm test
   test-with-eslint6:
@@ -70,8 +76,8 @@ jobs:
           node-version: ${{ matrix.node-version }}
       - name: Install Target Packages
         run: |+
-          npm i -D eslint@^7 -f
+          npm i -D eslint@^7
           npx rimraf node_modules
-          npm install -f
+          npm install
       - name: Test
         run: npm test

.github/workflows/Release.yml

@@ -21,14 +21,10 @@ jobs:
           # This makes Actions fetch all Git history so that Changesets can generate changelogs with the correct commits
           fetch-depth: 0
 
-      - name: Setup Node.js 16
+      - name: Setup Node.js
         uses: actions/setup-node@v4
-        with:
-          node-version: 16
-
       - name: Install Dependencies
         run: npm install
-
       - name: Create Release Pull Request or Publish to npm
         id: changesets
         uses: changesets/action@v1

.npmrc

@@ -1 +1,2 @@
-package-lock=false
+package-lock=false
+force=true

docs/.vitepress/theme/components/components/EslintPluginEditor.vue

@@ -73,54 +73,68 @@ export default {
 
   computed: {
     config() {
-      return {
-        globals: {
-          // ES2015 globals
-          ArrayBuffer: false,
-          DataView: false,
-          Float32Array: false,
-          Float64Array: false,
-          Int16Array: false,
-          Int32Array: false,
-          Int8Array: false,
-          Map: false,
-          Promise: false,
-          Proxy: false,
-          Reflect: false,
-          Set: false,
-          Symbol: false,
-          Uint16Array: false,
-          Uint32Array: false,
-          Uint8Array: false,
-          Uint8ClampedArray: false,
-          WeakMap: false,
-          WeakSet: false,
-          // ES2017 globals
-          Atomics: false,
-          SharedArrayBuffer: false,
+      return [
+        {
+          files: ["*.toml", "**/*.toml"],
+          languageOptions: {
+            parser: this.tomlESLintParser,
+          },
         },
-        rules: this.rules,
-        parser: this.parser,
-        parserOptions: {
-          parser: this.espree,
-          sourceType: "module",
-          ecmaVersion: "latest",
+        {
+          files: ["*.vue", "**/*.vue"],
+          languageOptions: {
+            parser: this.vueESLintParser,
+          },
         },
-      };
+        {
+          plugins: {
+            toml: {
+              rules: Object.fromEntries(
+                rules.map((rule) => [rule.meta.docs.ruleName, rule]),
+              ),
+            },
+          },
+          rules: this.rules,
+          languageOptions: {
+            globals: {
+              // ES2015 globals
+              ArrayBuffer: false,
+              DataView: false,
+              Float32Array: false,
+              Float64Array: false,
+              Int16Array: false,
+              Int32Array: false,
+              Int8Array: false,
+              Map: false,
+              Promise: false,
+              Proxy: false,
+              Reflect: false,
+              Set: false,
+              Symbol: false,
+              Uint16Array: false,
+              Uint32Array: false,
+              Uint8Array: false,
+              Uint8ClampedArray: false,
+              WeakMap: false,
+              WeakSet: false,
+              // ES2017 globals
+              Atomics: false,
+              SharedArrayBuffer: false,
+            },
+            parserOptions: {
+              parser: this.espree,
+              sourceType: "module",
+              ecmaVersion: "latest",
+            },
+          },
+        },
+      ];
     },
     linter() {
       if (!this.tomlESLintParser || !this.vueESLintParser) {
         return null;
       }
       const linter = new Linter();
-      linter.defineParser("toml-eslint-parser", this.tomlESLintParser);
-      linter.defineParser("vue-eslint-parser", this.vueESLintParser);
-
-      for (const k of Object.keys(rules)) {
-        const rule = rules[k];
-        linter.defineRule(rule.meta.docs.ruleId, rule);
-      }
-
       return linter;
     },
   },

docs/.vitepress/theme/components/rules/index.js

@@ -1,8 +1,6 @@
-import { Linter } from "eslint";
+import { builtinRules } from "eslint/use-at-your-own-risk";
 import { rules } from "../../../../../src/utils/rules.ts";
 
-const coreRules = Object.fromEntries(new Linter().getRules());
-
 const CATEGORY_TITLES = {
   toml: "eslint-plugin-toml",
   "eslint-core-rules@problem": "ESLint core rules(Possible Errors)",
@@ -37,8 +35,7 @@ for (const k of Object.keys(rules)) {
     initChecked: CATEGORY_INDEX.toml <= 3,
   });
 }
-for (const k of Object.keys(coreRules)) {
-  const rule = coreRules[k];
+for (const [k, rule] of builtinRules.entries()) {
   if (rule.meta.deprecated) {
     continue;
   }