fix: bound this to puts()

Author: Michel Hofmann

lib/index.js

@@ -89,7 +89,7 @@ var WebpackShellPlugin = function () {
 
   createClass(WebpackShellPlugin, [{
     key: 'puts',
-    value: function puts(error, stdout, stderr) {
+    value: function puts(error) {
       if (error && !this.options.swallowError) {
         throw error;
       }
@@ -120,14 +120,14 @@ var WebpackShellPlugin = function () {
     key: 'handleScript',
     value: function handleScript(script) {
       if (os.platform() === 'win32' || this.options.safe) {
-        this.spreadStdoutAndStdErr(exec(script, this.puts));
+        this.spreadStdoutAndStdErr(exec(script, this.puts.bind(this)));
       } else {
         var _serializeScript = this.serializeScript(script),
             command = _serializeScript.command,
             args = _serializeScript.args;
 
         var proc = spawn(command, args, { stdio: 'inherit' });
-        proc.on('close', this.puts);
+        proc.on('close', this.puts.bind(this));
       }
     }
   }, {

src/webpack-shell-plugin.js

@@ -17,7 +17,7 @@ export default class WebpackShellPlugin {
     this.options = this.validateInput(this.mergeOptions(options, defaultOptions));
   }
 
-  puts(error, stdout, stderr) {
+  puts(error) {
     if (error && !this.options.swallowError) {
       throw error;
     }
@@ -39,11 +39,11 @@ export default class WebpackShellPlugin {
 
   handleScript(script) {
     if (os.platform() === 'win32' || this.options.safe) {
-      this.spreadStdoutAndStdErr(exec(script, this.puts));
+      this.spreadStdoutAndStdErr(exec(script, this.puts.bind(this)));
     } else {
       const {command, args} = this.serializeScript(script);
       const proc = spawn(command, args, {stdio: 'inherit'});
-      proc.on('close', this.puts);
+      proc.on('close', this.puts.bind(this));
     }
   }