fix: update to flat config and removed redundant lint stage config (#234

)

.lintstagedrc

@@ -1,6 +1,7 @@
 {
 
   "*.ts": [
-    "prettier --parser typescript --write","npx eslint -c .eslintrc.js --ext .ts --no-error-on-unmatched-pattern --no-ignore --max-warnings 0"
+    "prettier --parser typescript --write",
+    "npx eslint --no-error-on-unmatched-pattern --no-ignore --max-warnings 0 ./src/**/*.ts"
   ]
 }

eslint.config.mjs

@@ -0,0 +1,119 @@
+import typescriptEslint from "@typescript-eslint/eslint-plugin";
+import preferArrow from "eslint-plugin-prefer-arrow";
+import unicorn from "eslint-plugin-unicorn";
+import globals from "globals";
+import tsParser from "@typescript-eslint/parser";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+import js from "@eslint/js";
+import { FlatCompat } from "@eslint/eslintrc";
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+const compat = new FlatCompat({
+    baseDirectory: __dirname,
+    recommendedConfig: js.configs.recommended,
+    allConfig: js.configs.all
+});
+
+export default [{
+    ignores: [
+        "**/jest.config.ts",
+        "**/node_modules",
+        "**/node_modules",
+        "**/commitlint.config.js",
+        "**/jest.config.js",
+        "**/.eslintrc.js",
+        "**/jest.config.ts",
+    ],
+}, ...compat.extends(
+    "eslint:recommended",
+    "plugin:@typescript-eslint/recommended-type-checked",
+    "plugin:@typescript-eslint/stylistic-type-checked",
+    "plugin:unicorn/recommended",
+    "prettier",
+), {
+    plugins: {
+        "@typescript-eslint": typescriptEslint,
+        "prefer-arrow": preferArrow,
+        unicorn,
+    },
+
+    languageOptions: {
+        globals: {
+            ...globals.node,
+            ...globals.jest,
+        },
+
+        parser: tsParser,
+        ecmaVersion: 5,
+        sourceType: "module",
+
+        parserOptions: {
+            tsconfigRootDir: "/Users/nishanth/project/personal/eslint-plugin-nestjs-typed",
+            project: ["./tsconfig.lint.json"],
+        },
+    },
+
+    rules: {
+        "unicorn/filename-case": ["warn", {
+            cases: {
+                camelCase: true,
+                pascalCase: true,
+            },
+        }],
+
+        "no-eval": "error",
+        "unicorn/no-fn-reference-in-iterator": "off",
+        "unicorn/no-array-for-each": "off",
+        "unicorn/no-null": "off",
+        "unicorn/prefer-array-some": "off",
+        "unicorn/consistent-destructuring": "off",
+        "unicorn/no-array-reduce": "off",
+        "unicorn/prefer-spread": "off",
+        "unicorn/no-array-callback-reference": "off",
+        "unicorn/consistent-function-scoping": "off",
+        "unicorn/no-useless-undefined": "off",
+        "unicorn/prefer-ternary": "off",
+        "unicorn/prefer-node-protocol": "off",
+
+        "unicorn/prevent-abbreviations": ["error", {
+            allowList: {
+                Param: true,
+                Req: true,
+                Res: true,
+            },
+        }],
+
+        "@typescript-eslint/naming-convention": ["error", {
+            selector: "default",
+            format: null,
+        }, {
+            selector: "variable",
+            format: ["PascalCase", "UPPER_CASE"],
+            types: ["boolean"],
+            prefix: ["is", "should", "has", "can", "did", "will"],
+        }, {
+            selector: "variableLike",
+            format: ["camelCase", "UPPER_CASE", "PascalCase"],
+        }, {
+            selector: "parameter",
+            format: ["camelCase"],
+        }, {
+            selector: "memberLike",
+            modifiers: ["private"],
+            format: ["camelCase"],
+            leadingUnderscore: "forbid",
+        }, {
+            selector: "typeLike",
+            format: ["PascalCase"],
+        }, {
+            selector: "property",
+            modifiers: ["readonly"],
+            format: ["PascalCase"],
+        }, {
+            selector: "enumMember",
+            format: ["UPPER_CASE"],
+        }],
+    },
+}];

package.json

@@ -6,7 +6,7 @@
         "clean": "rm -Rf ./dist/",
         "build:ci": "npm run build",
         "build": "npm run clean && mkdir ./dist && tsc --project tsconfig.build.json",
-        "lint": "npx eslint -c .eslintrc.js --ext .ts src --no-error-on-unmatched-pattern --no-ignore",
+        "lint": "npx eslint --no-error-on-unmatched-pattern --no-ignore ./src/**/*.ts",
         "test": "export NODE_OPTIONS=\"--max-old-space-size=8192\" && npx jest --runInBand --colors --reporters=default --no-cache --coverage=false --silent=false -c jest.config.ts",
         "pre-commit": "npx lint-staged",
         "prettier": "prettier --write src/*",
@@ -51,6 +51,8 @@
     "devDependencies": {
         "@commitlint/cli": "19.6.1",
         "@commitlint/config-conventional": "19.6.0",
+        "@eslint/eslintrc": "^3.2.0",
+        "@eslint/js": "^9.17.0",
         "@semantic-release/changelog": "6.0.3",
         "@semantic-release/exec": "6.0.3",
         "@types/eslint": "9.6.1",
@@ -64,6 +66,7 @@
         "eslint-config-prettier": "9.1.0",
         "eslint-plugin-prefer-arrow": "1.2.3",
         "eslint-plugin-unicorn": "56.0.1",
+        "globals": "^15.14.0",
         "husky": "9.1.7",
         "jest": "29.7.0",
         "jest-create-mock-instance": "2.0.0",
@@ -89,9 +92,5 @@
         "lint",
         "style"
     ],
-    "license": "ISC",
-    "lint-staged": {
-        "*.ts": "eslint --cache --fix",
-        "*.{ts,js,css,md}": "prettier --write"
-    }
+    "license": "ISC"
 }

src/fixtures/NonFactoryDecorator.stub.ts

@@ -1,6 +1,6 @@
-/* eslint-disable @typescript-eslint/ban-types */
 /* eslint-disable @typescript-eslint/no-explicit-any */
 /* eslint-disable @typescript-eslint/no-unused-vars */
+// eslint-disable-next-line @typescript-eslint/no-unsafe-function-type
 export function NonFactoryDecorator(constructor: Function) {
     return;
 }