Update package.json to include TypeScript definitions and ensure index.d.ts is part of the package files.

Author: sunnylqm

index.d.ts

@@ -0,0 +1,77 @@
+/// <reference types="node" />
+
+export type BinaryLike = Buffer | ArrayBufferView;
+
+export type DiffCallback = (err: Error | null, result?: Buffer) => void;
+export type StreamCallback = (err: Error | null, outPath?: string) => void;
+
+export interface NativeAddon {
+  diff(oldBuf: BinaryLike, newBuf: BinaryLike): Buffer;
+  diff(oldBuf: BinaryLike, newBuf: BinaryLike, cb: DiffCallback): void;
+  patch(oldBuf: BinaryLike, diffBuf: BinaryLike): Buffer;
+  patch(oldBuf: BinaryLike, diffBuf: BinaryLike, cb: DiffCallback): void;
+  diffStream(oldPath: string, newPath: string, outDiffPath: string): string;
+  diffStream(
+    oldPath: string,
+    newPath: string,
+    outDiffPath: string,
+    cb: StreamCallback
+  ): void;
+  patchStream(oldPath: string, diffPath: string, outNewPath: string): string;
+  patchStream(
+    oldPath: string,
+    diffPath: string,
+    outNewPath: string,
+    cb: StreamCallback
+  ): void;
+}
+
+export const native: NativeAddon;
+
+export function diff(oldBuf: BinaryLike, newBuf: BinaryLike): Buffer;
+export function diff(
+  oldBuf: BinaryLike,
+  newBuf: BinaryLike,
+  cb: DiffCallback
+): void;
+
+export function patch(oldBuf: BinaryLike, diffBuf: BinaryLike): Buffer;
+export function patch(
+  oldBuf: BinaryLike,
+  diffBuf: BinaryLike,
+  cb: DiffCallback
+): void;
+
+export function diffStream(
+  oldPath: string,
+  newPath: string,
+  outDiffPath: string
+): string;
+export function diffStream(
+  oldPath: string,
+  newPath: string,
+  outDiffPath: string,
+  cb: StreamCallback
+): void;
+
+export function patchStream(
+  oldPath: string,
+  diffPath: string,
+  outNewPath: string
+): string;
+export function patchStream(
+  oldPath: string,
+  diffPath: string,
+  outNewPath: string,
+  cb: StreamCallback
+): void;
+
+declare const hdiffpatch: {
+  native: NativeAddon;
+  diff: typeof diff;
+  patch: typeof patch;
+  diffStream: typeof diffStream;
+  patchStream: typeof patchStream;
+};
+
+export default hdiffpatch;

package.json

@@ -3,11 +3,13 @@
   "version": "1.1.2",
   "description": "hdiffpatch port to node.js",
   "main": "index.js",
+  "types": "index.d.ts",
   "bin": {
     "hdp": "bin/hdiffpatch.js"
   },
   "files": [
     "index.js",
+    "index.d.ts",
     "bin/",
     "prebuilds/"
   ],