Remove deprecation caused by the DeletedUnusuedEntriesJSPlugin

Author: Lyrkan

Diff for: lib/webpack/delete-unused-entries-js-plugin.js

@@ -9,12 +9,13 @@
 
 'use strict';
 
+const webpack = require('webpack');
+
 function DeleteUnusedEntriesJSPlugin(entriesToDelete = []) {
     this.entriesToDelete = entriesToDelete;
 }
 DeleteUnusedEntriesJSPlugin.prototype.apply = function(compiler) {
-    const emit = (compilation, callback) => {
-
+    const deleteEntries = (compilation) => {
         // loop over output chunks
         compilation.chunks.forEach((chunk) => {
             // see of this chunk is one that needs its .js deleted
@@ -26,7 +27,7 @@ DeleteUnusedEntriesJSPlugin.prototype.apply = function(compiler) {
                     if (/\.js?(\?[^.]*)?$/.test(filename)) {
                         removedFiles.push(filename);
                         // remove the output file
-                        delete compilation.assets[filename];
+                        compilation.deleteAsset(filename);
                         // remove the file, so that it does not dump in the manifest
                         chunk.files.delete(filename);
                     }
@@ -37,7 +38,7 @@ DeleteUnusedEntriesJSPlugin.prototype.apply = function(compiler) {
                     if (removedFiles.map(name => `${name}.map`).includes(`${filename}`)) {
                         removedFiles.push(filename);
                         // remove the output file
-                        delete compilation.assets[filename];
+                        compilation.deleteAsset(filename);
                         // remove the file, so that it does not dump in the manifest
                         chunk.auxiliaryFiles.delete(filename);
                     }
@@ -51,14 +52,14 @@ DeleteUnusedEntriesJSPlugin.prototype.apply = function(compiler) {
                 }
             }
         });
-
-        callback();
     };
 
-    compiler.hooks.emit.tapAsync(
-        { name: 'DeleteUnusedEntriesJsPlugin' },
-        emit
-    );
+    compiler.hooks.compilation.tap('DeleteUnusedEntriesJSPlugin', function (compilation) {
+        compilation.hooks.additionalAssets.tap(
+            'DeleteUnusedEntriesJsPlugin',
+            function() { deleteEntries(compilation) }
+        );
+    });
 };
 
 module.exports = DeleteUnusedEntriesJSPlugin;