rename: apt -> pkg

lib/data/model/pkg/upgrade_info.dart

@@ -0,0 +1,44 @@
+import 'package:toolbox/data/model/server/dist.dart';
+
+class UpgradePkgInfo {
+  final String _raw;
+  final Dist _dist;
+
+  late String package;
+  late String nowVersion;
+  late String newVersion;
+  late String arch;
+
+  UpgradePkgInfo(this._raw, this._dist) {
+    switch (_dist) {
+      case Dist.debian:
+      case Dist.ubuntu:
+        _parseApt();
+        break;
+      case Dist.centos:
+        _parseYum();
+        break;
+      default:
+        throw Exception('Unsupported dist: $_dist');
+    }
+  }
+
+  void _parseApt() {
+    final split1 = _raw.split("/");
+    package = split1[0];
+    final split2 = split1[1].split(" ");
+    newVersion = split2[1];
+    arch = split2[2];
+    nowVersion = split2[5].replaceFirst(']', '');
+  }
+
+  void _parseYum() {
+    final result = RegExp(r'\S+').allMatches(_raw);
+    final pkgAndArch = result.elementAt(0).group(0) ?? '.';
+    final split1 = pkgAndArch.split('.');
+    package = split1[0];
+    arch = split1[1];
+    newVersion = result.elementAt(1).group(0) ?? 'Unknown';
+    nowVersion = '';
+  }
+}