fix: termux compatibility (#495)

lib/data/model/app/shell_func.dart

@@ -23,6 +23,7 @@ enum ShellFunc {
   static const scriptPath = '$scriptDir/$scriptFile';
 
   static const String installShellCmd = """
+mkdir -p $scriptDir
 cat > $scriptPath
 chmod 744 $scriptPath
 """;

lib/data/model/server/cpu.dart

@@ -1,6 +1,5 @@
-import 'dart:collection';
-
 import 'package:fl_chart/fl_chart.dart';
+import 'package:fl_lib/fl_lib.dart';
 import 'package:server_box/data/model/server/time_seq.dart';
 import 'package:server_box/data/res/status.dart';
 
@@ -26,10 +25,16 @@ class Cpus extends TimeSeq<List<SingleCpuCore>> {
 
   double usedPercent({int coreIdx = 0}) {
     if (now.length != pre.length) return 0;
-    final idleDelta = now[coreIdx].idle - pre[coreIdx].idle;
-    final totalDelta = now[coreIdx].total - pre[coreIdx].total;
-    final used = idleDelta / totalDelta;
-    return used.isNaN ? 0 : 100 - used * 100;
+    if (now.isEmpty) return 0;
+    try {
+      final idleDelta = now[coreIdx].idle - pre[coreIdx].idle;
+      final totalDelta = now[coreIdx].total - pre[coreIdx].total;
+      final used = idleDelta / totalDelta;
+      return used.isNaN ? 0 : 100 - used * 100;
+    } catch (e, s) {
+      Loggers.app.warning('Cpus.usedPercent()', e, s);
+      return 0;
+    }
   }
 
   int _coresCount = 0;

lib/data/provider/server.dart

@@ -316,7 +316,7 @@ class ServerProvider extends ChangeNotifier {
       final scriptRaw = ShellFunc.allScript(spi.custom?.cmds).uint8List;
 
       try {
-        await s.client?.runForOutput(
+        await s.client!.runForOutput(
           ShellFunc.installShellCmd,
           action: (session) async {
             session.stdin.add(scriptRaw);

lib/data/res/build_data.dart

@@ -2,6 +2,6 @@
 
 class BuildData {
   static const String name = "ServerBox";
-  static const int build = 1030;
+  static const int build = 1032;
   static const int script = 54;
 }

lib/data/res/github_id.dart

@@ -94,6 +94,7 @@ abstract final class GithubIds {
     'liwenjie119',
     'logce',
     'h-lyf',
+    '88484396',
   };
 }