fix: resolve correct result if filesnapshot is out of date

package.json

@@ -1,6 +1,6 @@
 {
   "name": "favicons-webpack-plugin",
-  "version": "5.0.0-alpha.8",
+  "version": "5.0.0-alpha.9",
   "description": "Let webpack generate all your favicons and icons for you",
   "main": "src/index.js",
   "files": [

src/cache.js

@@ -1,29 +1,16 @@
-// / @ts-check
+// @ts-check
 
 // Import types
 /** @typedef {ReturnType<import("webpack").Compiler['getCache']>} WebpackCacheFacade */
 /** @typedef {import("webpack").Compilation} WebpackCompilation */
 /** @typedef {Parameters<WebpackCompilation['fileSystemInfo']['checkSnapshotValid']>[0]} Snapshot */
 
-/** @typedef {{,
-  publicPath: string,
-  tags: string[], 
-  assets: Array<{
-    name: string, 
-    contents: import('webpack').sources.RawSource
-  }>
-}} FaviconsCompilationResult */
-
 const path = require('path');
-const {
-  replaceContentHash,
-  resolvePublicPath,
-  getContentHash
-} = require('./hash');
+const { getContentHash } = require('./hash');
 
 /** @type {WeakMap<any, Promise<Snapshot>>} */
 const snapshots = new WeakMap();
-/** @type {WeakMap<Promise<Snapshot>, Promise<FaviconsCompilationResult>>} */
+/** @type {WeakMap<Promise<Snapshot>, Promise<any>>} */
 const faviconCache = new WeakMap();
 
 /**
@@ -52,6 +39,7 @@ function runCached(
   generator
 ) {
   const latestSnapShot = snapshots.get(pluginInstance);
+  /** @type {Promise<TResult> | undefined} */
   const cachedFavicons = latestSnapShot && faviconCache.get(latestSnapShot);
 
   if (latestSnapShot && cachedFavicons) {
@@ -64,9 +52,10 @@ function runCached(
         return runCached(
           files,
           pluginInstance,
+          useWebpackCache,
           compilation,
-          idGenerator,
           eTags,
+          idGenerator,
           generator
         );
       }

src/hash.js

@@ -1,4 +1,4 @@
-// / @ts-check
+// @ts-check
 
 // Import types
 /** @typedef {import("webpack").Compilation} WebpackCompilation */
@@ -55,9 +55,12 @@ function appendSlash(url) {
 
 /**
  * Returns the content hash for the given file content
- * @param {Buffer|string} file
+ * @param {Buffer | string | undefined} file
  */
 function getContentHash(file) {
+  if (!file) {
+    return '';
+  }
   return crypto
     .createHash('sha256')
     .update(file.toString('utf8'))