Update internal use of ESLint to v9/flat config.

Update fixture testing to account for that.

Author: joshwilsonvu

.eslintignore

@@ -0,0 +1,80 @@
+// @ts-check
+import js from "@eslint/js";
+import globals from "globals";
+import tseslint from "typescript-eslint";
+import pluginEslintPlugin from "eslint-plugin-eslint-plugin";
+import solid from "./dist/index.js";
+
+export default tseslint.config(
+  {
+    ignores: ["dist", "**/dist.*", "./configs", "node_modules", "eslint.config.mjs"],
+  },
+  js.configs.recommended,
+  ...tseslint.configs.recommended,
+  {
+    languageOptions: {
+      sourceType: "module",
+      parser: tseslint.parser,
+      parserOptions: {
+        project: "tsconfig.json",
+      },
+      globals: globals.node,
+    },
+    rules: {
+      "@typescript-eslint/no-explicit-any": "off",
+      "@typescript-eslint/no-non-null-assertion": "off",
+      "@typescript-eslint/non-nullable-type-assertion-style": "warn",
+      "no-extra-semi": "off",
+      "no-mixed-spaces-and-tabs": "off",
+      "no-new-native-nonconstructor": 1,
+      "no-new-symbol": "off",
+      "object-shorthand": "warn",
+    },
+  },
+  {
+    files: ["src/rules/*.ts", "configs/*"],
+    languageOptions: {
+      globals: globals.node,
+    },
+    plugins: {
+      "eslint-plugin": pluginEslintPlugin,
+    },
+    rules: {
+      ...pluginEslintPlugin.configs.recommended.rules,
+      "eslint-plugin/meta-property-ordering": "error",
+      "eslint-plugin/report-message-format": ["error", "^[A-Z\\{'].*\\.$"],
+      "eslint-plugin/test-case-property-ordering": "error",
+      "eslint-plugin/require-meta-docs-description": [
+        "error",
+        { pattern: "^(Enforce|Require|Disallow)" },
+      ],
+      "eslint-plugin/require-meta-docs-url": [
+        "error",
+        {
+          pattern:
+            "https://github.com/solidjs-community/eslint-plugin-solid/blob/main/docs/{{name}}.md",
+        },
+      ],
+    },
+  },
+  // standalone is designed not to need any Node or browser APIs
+  {
+    files: ["standalone/index.js"],
+    languageOptions: {
+      globals: {},
+    },
+  },
+  // fixture gets tested with the plugin
+  {
+    files: ["test/fixture/**/*.{js,jsx,ts,tsx}"],
+    ...solid.configs["flat/recommended"],
+    languageOptions: {
+      globals: globals.browser,
+    },
+    rules: {
+      ...solid.configs['flat/recommended'].rules,
+      "@typescript-eslint/ban-ts-comment": 0,
+      "@typescript-eslint/no-unused-vars": 0,
+    },
+  }
+);

.eslintrc.json

@@ -21,7 +21,8 @@
     "prepare": "husky install",
     "prepublishOnly": "pnpm build && pnpm lint && prettier --check src && pnpm test:all",
     "build": "tsc -p tsconfig.build.json && pnpm run docs",
-    "lint": "eslint --ext .js,.jsx,.ts,.tsx --ignore-pattern test/fixture/invalid .",
+    "eslint": "node node_modules/eslint/bin/eslint.js",
+    "lint": "pnpm eslint --ignore-pattern test/fixture/invalid",
     "docs": "PARSER=none tsx scripts/docs.ts",
     "test": "vitest",
     "test:ts": "PARSER=ts pnpm test",
@@ -37,7 +38,7 @@
     "README.md"
   ],
   "dependencies": {
-    "@typescript-eslint/utils": "^7.6.0",
+    "@typescript-eslint/utils": "^7.13.1",
     "estraverse": "^5.3.0",
     "is-html": "^2.0.0",
     "kebab-case": "^1.0.2",
@@ -46,32 +47,34 @@
   },
   "devDependencies": {
     "@babel/core": "^7.24.4",
-    "@babel/eslint-parser": "^7.24.1",
+    "@babel/eslint-parser": "^7.24.7",
     "@tsconfig/node20": "^20.1.4",
+    "@types/eslint": "^8.56.10",
     "@types/eslint-v6": "npm:@types/eslint@6",
     "@types/eslint-v7": "npm:@types/eslint@7",
     "@types/eslint-v8": "npm:@types/eslint@8",
+    "@types/eslint__js": "^8.42.3",
     "@types/estraverse": "^5.1.7",
     "@types/is-html": "^2.0.2",
     "@types/markdown-magic": "^1.0.4",
-    "@types/node": "^16.18.94",
+    "@types/node": "^20",
     "@types/prettier": "^2.7.3",
-    "@typescript-eslint/eslint-plugin": "^6.21.0",
-    "@typescript-eslint/parser": "^6.21.0",
-    "eslint": "^9.0.0",
-    "eslint-plugin-eslint-plugin": "^5.5.0",
-    "eslint-plugin-import": "^2.29.1",
+    "@typescript-eslint/eslint-plugin": "^7.13.1",
+    "@typescript-eslint/parser": "^7.13.1",
+    "eslint": "^9.5.0",
+    "eslint-plugin-eslint-plugin": "^6.1.0",
     "eslint-plugin-solid": "link:",
     "eslint-v6": "npm:eslint@6",
     "eslint-v7": "npm:eslint@7",
     "eslint-v8": "npm:eslint@8",
+    "globals": "^15.6.0",
     "husky": "^8.0.3",
     "lint-staged": "^13.3.0",
     "markdown-magic": "^2.6.1",
     "prettier": "^2.8.8",
     "tsx": "^4.7.3",
     "typescript": "^5.4.3",
-    "typescript-eslint": "^7.7.1",
+    "typescript-eslint": "^7.13.1",
     "vitest": "^1.5.2"
   },
   "peerDependencies": {