feat: check whether target bundle exist and throw error

Author: KyLeoHC

README.md

@@ -23,7 +23,7 @@ $ npm install -S inline-source-webpack-plugin
 <div class="container">
     <h1>hello world!</h1>
 </div>
-<!-- 'inline-bundle' attribute tell us embed file that generated by webpack -->
+<!-- 'inline-bundle' attribute tell us to embed file that generated by webpack -->
 <script inline inline-bundle="bundle.js"></script>
 </body>
 </html>

demo/dist/index.html

@@ -10,7 +10,7 @@
 <div class="container">
     <h1>hello world!</h1>
 </div>
-<!-- 'inline-bundle' attribute tell us embed file that generated by webpack -->
+<!-- 'inline-bundle' attribute tell us to embed file that generated by webpack -->
 <script>(window.webpackJsonp=window.webpackJsonp||[]).push([["bundle"],[,function(i,e){console.log("This file is build by webpack.But InlineSourceWebpackPlugin will embed it into html file.")}],[[1,"runtime"]]]);</script>
 <script type="text/javascript" src="/inline-source-webpack-plugin/demo/dist/runtime.js"></script><script type="text/javascript" src="/inline-source-webpack-plugin/demo/dist/index.js"></script></body>
 </html>

demo/src/index.html

@@ -10,7 +10,7 @@
 <div class="container">
     <h1>hello world!</h1>
 </div>
-<!-- 'inline-bundle' attribute tell us embed file that generated by webpack -->
-<script inline inline-bundle="bundle.js"></script>
+<!-- 'inline-bundle' attribute tell us to embed file that generated by webpack -->
+<script inline inline-bundle="bundle.js" inline-bundle-delete></script>
 </body>
 </html>

index.js

@@ -25,6 +25,9 @@ class InlineSourceWebpackPlugin {
                         break;
                     }
                 }
+                if (!source.content) {
+                    compilation.errors.push(new Error(`[${this.constructor.name}]:no asset match '${bundle}'.`));
+                }
             }
             if (source.filepath) {
                 // watch inline target