Add types for pkg-dir package (#22601)

types/pkg-dir/index.d.ts

@@ -0,0 +1,12 @@
+// Type definitions for pkg-dir 2.0
+// Project: https://github.com/sindresorhus/pkg-dir#readme
+// Definitions by: NK-WEB-Git <https://github.com/NK-WEB-Git>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+export = pkgDir;
+
+declare function pkgDir(cwd?: string): Promise<string | null>;
+
+declare namespace pkgDir {
+    function sync(cwd?: string): string | null;
+}

types/pkg-dir/pkg-dir-tests.ts

@@ -0,0 +1,11 @@
+import pkgDir = require('pkg-dir');
+
+pkgDir('/Users/project/pkg-dir').then(rootDir => {
+    rootDir; // $ExpectType string | null
+});
+
+pkgDir().then(rootDir => {
+    rootDir;
+});
+
+pkgDir.sync('/Users/project/pkg-dir'); // $ExpectType string | null

types/pkg-dir/tsconfig.json

@@ -0,0 +1,23 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "strictFunctionTypes": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "pkg-dir-tests.ts"
+    ]
+}

types/pkg-dir/tslint.json

@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }