BinaryModule support

lib/common/conf/binary_conf.dart

@@ -0,0 +1,45 @@
+import 'dart:io';
+
+import 'package:archive/archive.dart';
+import 'package:flutter/services.dart';
+import 'package:starcitizen_doctor/common/conf/app_conf.dart';
+import 'package:starcitizen_doctor/common/utils/base_utils.dart';
+
+class BinaryModuleConf {
+  static const _modules = {
+    "aria2c": "0",
+  };
+
+  static Future extractModel() async {
+    final workingDir = "${AppConf.applicationSupportDir}\\modules";
+    for (var m in _modules.entries) {
+      final name = m.key;
+      final version = m.value;
+      final dir = "$workingDir\\$name";
+      final versionFile = File("$dir\\version");
+      if (await versionFile.exists() &&
+          (await versionFile.readAsString()).trim() == version) {
+        dPrint(
+            "BinaryModuleConf.extractModule  skip $name version == $version");
+        continue;
+      }
+      // write model file
+      final zipBuffer = await rootBundle.load("assets/binary/$name.zip");
+      final decoder = ZipDecoder().decodeBytes(zipBuffer.buffer.asUint8List());
+      for (var value in decoder.files) {
+        final filename = value.name;
+        if (value.isFile) {
+          final data = value.content as List<int>;
+          final file = File('$dir\\$filename');
+          await file.create(recursive: true);
+          await file.writeAsBytes(data);
+        } else {
+          await Directory('$dir\\$filename').create(recursive: true);
+        }
+      }
+      // write version file
+      await versionFile.writeAsString(version);
+      dPrint("BinaryModuleConf.extractModule $name $dir");
+    }
+  }
+}