Create koa-pug definitions (#13220)

* Create koa-pug definitions

* Fix CI

* Fix CI

* Fix CI

* Fix CI

* Fix CI

* Fix CI

* Fix CI

* Fix CI

* Fix CI

koa-pug/index.d.ts

@@ -0,0 +1,37 @@
+// Type definitions for koa-pug 3.0
+// Project: https://github.com/chrisyip/koa-pug
+// Definitions by: Xavier Stouder <https://github.com/Xstoudi>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+import * as koa from "koa";
+
+export namespace Koa {
+    interface Context {
+        render(viewPath: string, locals?: Pug.PugLocals, overrideOpts?: Pug.PugCtxOptions, noCache?: boolean): void;
+        // tslint:disable-next-line:unified-signatures
+        render(pugStr: string, locals?: Pug.PugLocals, overrideOpts?: Pug.PugCtxOptions): void;
+        // tslint:disable-next-line:unified-signatures
+        render(pugStr: string, locals?: Pug.PugLocals, noCache?: boolean): void;
+    }
+}
+export class Pug {
+    constructor(options?: Pug.PugOptions);
+    use(app: koa): void;
+}
+export namespace Pug {
+    export interface PugOptions {
+        viewPath?: string;
+        pretty?: boolean;
+        compileDebug?: boolean;
+        debug?: boolean;
+        locals?: PugLocals;
+        noCache?: boolean;
+        helperPath?: string | Array<string | { [str: string]: any }>;
+        basedir?: string;
+        app?: koa;
+    }
+    export interface PugCtxOptions extends PugOptions {
+        fromString: boolean;
+    }
+    export interface PugLocals { [str: string]: any; }
+}

koa-pug/tsconfig.json

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+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "target": "es6",
+        "noImplicitAny": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "koa-pug-tests.ts"
+    ]
+}

koa-pug/tslint.json

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