Add path-exists definitions

path-exists/path-exists-tests.ts

@@ -0,0 +1,8 @@
+/// <reference path="path-exists.d.ts" />
+
+import pathExists = require("path-exists");
+
+pathExists("test/path-exists.d.ts", (error, exists) => {
+  console.log(exists);
+});
+console.log(pathExists.sync("test/__path-exists.d.ts"));

path-exists/path-exists.d.ts

@@ -0,0 +1,14 @@
+// Type definitions for path-exists 1.0.0
+// Project: https://github.com/sindresorhus/path-exists
+// Definitions by: Shogo Iwano <https://github.com/shiwano>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+declare module "path-exists" {
+    interface PathExists {
+        (path: string, callback: (error: Error, exists: boolean) => void): void;
+        sync(path: string): boolean;
+    }
+
+    var pathExists: PathExists;
+    export = pathExists;
+}