Add file hash comparison to optimize asset copying in aniyomiBridge

example/pubspec.lock

@@ -57,6 +57,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.19.1"
+  crypto:
+    dependency: transitive
+    description:
+      name: crypto
+      sha256: c8ea0233063ba03258fbcf2ca4d6dadfefe14f02fab57702265467a19f27fadf
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.7"
   cupertino_icons:
     dependency: "direct main"
     description:

lib/aniyomi_bridge.dart

@@ -10,6 +10,7 @@ import 'package:k3vinb5_aniyomi_bridge/models/extension.dart';
 import 'package:logger/logger.dart';
 import 'package:path_provider/path_provider.dart';
 import 'package:path/path.dart' as path;
+import 'package:crypto/crypto.dart';
 import 'package:k3vinb5_aniyomi_bridge/jmodels/jvideo.dart';
 import 'package:k3vinb5_aniyomi_bridge/jmodels/jsanime.dart';
 import 'package:k3vinb5_aniyomi_bridge/jmodels/jsepisode.dart';
@@ -369,7 +370,19 @@ class AniyomiBridge {
       _aniyomiBridgeJarName,
     );
     File aniyomiBridgeCore = File(aniyomiBridgeCorePath);
+    bool needsCopy = false;
     if (!(await aniyomiBridgeCore.exists())) {
+      needsCopy = true;
+    } else {
+      String assetPath = "$_packageAssetsDir/$_aniyomiBridgeJarName";
+      String existingFileHash = await _computeFileHash(aniyomiBridgeCore);
+      String assetHash = await _computeAssetHash(assetPath);
+      if (existingFileHash != assetHash) {
+        needsCopy = true;
+      }
+    }
+    if (needsCopy) {
+      _logger.i("Copying new aniyomiBridgeCore binary to $aniyomiBridgeCorePath");
       await _copyAssetToFile(
         "$_packageAssetsDir/$_aniyomiBridgeJarName",
         aniyomiBridgeCorePath,
@@ -377,6 +390,19 @@ class AniyomiBridge {
     }
   }
 
+  Future<String> _computeFileHash(File file) async {
+    final bytes = await file.readAsBytes();
+    final digest = sha256.convert(bytes);
+    return digest.toString();
+  }
+
+  Future<String> _computeAssetHash(String assetPath) async {
+    final byteData = await rootBundle.load(assetPath);
+    final bytes = byteData.buffer.asUint8List();
+    final digest = sha256.convert(bytes);
+    return digest.toString();
+  }
+
   Future<File> _copyAssetToFile(String assetPath, String outPath) async {
     final byteData = await rootBundle.load(assetPath);
     final buffer = byteData.buffer.asUint8List();

pubspec.yaml

@@ -1,7 +1,6 @@
 name: k3vinb5_aniyomi_bridge
 description: "A new Flutter package project."
 version: 0.0.1
-homepage:
 
 environment:
   sdk: ^3.8.1
@@ -10,11 +9,15 @@ environment:
 dependencies:
   flutter:
     sdk: flutter
+  # FFI / Native Integration
   jni: ^0.14.2
   jnigen: ^0.14.2
+  # Logger
   logger: ^2.6.2
+  # Storage
   path: ^1.9.1
   path_provider: ^2.1.5
+  crypto: ^3.0.7
 
 dev_dependencies:
   flutter_test: