Update: add TypeScript definitions

fix #51

lib/index.d.ts

@@ -0,0 +1,41 @@
+import * as webpack from 'webpack'
+
+declare namespace WebpackShellPlugin {
+  interface Options {
+    /** Scripts to execute on the initial build. Defaults to []. */
+    onBuildStart?: string[]
+
+    /**
+     * Scripts to execute after files are emitted at the end of the
+     * compilation. Defaults to [].
+     */
+    onBuildEnd?: string[]
+
+    /** Scripts to execute after Webpack's process completes. Defaults to []. */
+    onBuildExit?: string[]
+
+    /**
+     * Switch for development environments. This causes scripts to execute once.
+     * Useful for running HMR on webpack-dev-server or webpack watch mode.
+     * Defaults to true.
+     */
+    dev?: boolean
+
+    /**
+     * Switches script execution process from spawn to exec. If running into
+     * problems with spawn, turn this setting on. Defaults to false.
+     */
+    safe?: boolean
+
+    /** DEPRECATED. Enable for verbose output. Defaults to false. */
+    verbose?: boolean
+  }
+
+  class Plugin extends webpack.Plugin {
+    constructor(options?: Options)
+  }
+}
+
+declare module 'webpack-shell-plugin' {
+  export = WebpackShellPlugin.Plugin
+}

package.json

@@ -3,6 +3,7 @@
   "version": "0.5.0",
   "description": "Run shell commands before and after webpack builds",
   "main": "lib/index.js",
+  "types": "lib/index.d.ts",
   "scripts": {
     "test": "webpack",
     "test:dev": "webpack-dev-server --progress",