opt. & new

- opt.: docker page perf
- new: docker stats

lib/data/model/app/error.dart

@@ -36,7 +36,8 @@ enum DockerErrType {
   noClient,
   notInstalled,
   invalidVersion,
-  cmdNoPrefix
+  cmdNoPrefix,
+  segmentsNotMatch,
 }
 
 class DockerErr extends Err<DockerErrType> {

lib/data/model/app/shell_func.dart

@@ -1,9 +1,13 @@
+import '../../res/server_cmd.dart';
+
 class AppShellFunc {
   final String name;
   final String cmd;
   final String flag;
 
   const AppShellFunc(this.name, this.cmd, this.flag);
+
+  String get exec => 'sh $shellPath -$flag';
 }
 
 typedef AppShellFuncs = List<AppShellFunc>;
@@ -39,3 +43,8 @@ esac
     return sb.toString();
   }
 }
+
+// enum AppShellFuncType {
+//   status,
+//   docker;
+// }

lib/data/model/docker/ps.dart

@@ -8,6 +8,10 @@ class DockerPsItem {
   late String status;
   late String ports;
   late String name;
+  String? cpu;
+  String? mem;
+  String? net;
+  String? disk;
 
   DockerPsItem(
     this.containerId,
@@ -37,6 +41,20 @@ class DockerPsItem {
     }
   }
 
+  void parseStats(String rawString) {
+    if (rawString.isEmpty) {
+      return;
+    }
+    final parts = rawString.split(_seperator);
+    if (parts.length != 8) {
+      return;
+    }
+    cpu = parts[2];
+    mem = parts[3];
+    net = parts[5];
+    disk = parts[6];
+  }
+
   bool get running => status.contains('Up ');
 
   @override

lib/data/provider/docker.dart

@@ -5,11 +5,11 @@ import 'package:dartssh2/dartssh2.dart';
 import 'package:logging/logging.dart';
 import 'package:toolbox/core/extension/ssh_client.dart';
 import 'package:toolbox/core/extension/stringx.dart';
-import 'package:toolbox/core/extension/uint8list.dart';
 import 'package:toolbox/core/provider_base.dart';
 import 'package:toolbox/data/model/docker/image.dart';
 import 'package:toolbox/data/model/docker/ps.dart';
 import 'package:toolbox/data/model/app/error.dart';
+import 'package:toolbox/data/res/server_cmd.dart';
 import 'package:toolbox/data/store/docker.dart';
 import 'package:toolbox/locator.dart';
 
@@ -18,9 +18,6 @@ final _versionReg = RegExp(r'(Version:)\s+([0-9]+\.[0-9]+\.[0-9]+)');
 final _editionReg = RegExp(r'(Client:)\s+(.+-.+)');
 final _dockerPrefixReg = RegExp(r'(sudo )?docker ');
 
-const _dockerPS = 'docker ps -a';
-const _dockerImgs = 'docker images';
-
 final _logger = Logger('DOCKER');
 
 class DockerProvider extends BusyProvider {
@@ -54,49 +51,59 @@ class DockerProvider extends BusyProvider {
 
   Future<void> refresh() async {
     if (isBusy) return;
-    final verRaw = await client!.run('docker version'.withLangExport).string;
-    if (verRaw.contains(_dockerNotFound)) {
+    setBusyState();
+
+    var raw = '';
+    await client!.exec(
+      shellFuncDocker.exec,
+      onStderr: _onPwd,
+      onStdout: (data, _) => raw = '$raw$data',
+    );
+
+    if (raw.contains(_dockerNotFound)) {
       error = DockerErr(type: DockerErrType.notInstalled);
       setBusyState(false);
       return;
     }
 
+    // Check result segments count
+    final segments = raw.split(seperator);
+    if (segments.length != dockerCmds.length) {
+      error = DockerErr(type: DockerErrType.segmentsNotMatch);
+      setBusyState(false);
+      return;
+    }
+
+    // Parse docker version
+    final verRaw = segments[0];
     try {
       version = _versionReg.firstMatch(verRaw)?.group(2);
       edition = _editionReg.firstMatch(verRaw)?.group(2);
     } catch (e) {
+      error = DockerErr(type: DockerErrType.unknown, message: e.toString());
       rethrow;
     }
 
+    // Parse docker ps
+    final psRaw = segments[1];
     try {
-      setBusyState();
-      final cmd = _wrap(_dockerPS);
-
-      // run docker ps
-      var raw = '';
-      await client!.exec(
-        cmd,
-        onStderr: _onPwd,
-        onStdout: (data, _) => raw = '$raw$data',
-      );
-
-      // parse result
-      final lines = raw.split('\n');
-      lines.removeAt(0);
+      final lines = psRaw.split('\n');
       lines.removeWhere((element) => element.isEmpty);
+      lines.removeAt(0);
       items = lines.map((e) => DockerPsItem.fromRawString(e)).toList();
+    } catch (e) {
+      error = DockerErr(type: DockerErrType.unknown, message: e.toString());
+      rethrow;
+    } finally {
+      setBusyState(false);
+    }
 
-      final imageCmd = _wrap(_dockerImgs);
-      raw = '';
-      await client!.exec(
-        imageCmd,
-        onStderr: _onPwd,
-        onStdout: (data, _) => raw = '$raw$data',
-      );
-
-      final imageLines = raw.split('\n');
-      imageLines.removeAt(0);
+    // Parse docker images
+    final imageRaw = segments[3];
+    try {
+      final imageLines = imageRaw.split('\n');
       imageLines.removeWhere((element) => element.isEmpty);
+      imageLines.removeAt(0);
       images = imageLines.map((e) => DockerImage.fromRawStr(e)).toList();
     } catch (e) {
       error = DockerErr(type: DockerErrType.unknown, message: e.toString());
@@ -104,6 +111,25 @@ class DockerProvider extends BusyProvider {
     } finally {
       setBusyState(false);
     }
+
+    // Parse docker stats
+    final statsRaw = segments[2];
+    try {
+      final statsLines = statsRaw.split('\n');
+      statsLines.removeWhere((element) => element.isEmpty);
+      statsLines.removeAt(0);
+      for (var item in items!) {
+        final statsLine = statsLines.firstWhere(
+          (element) => element.contains(item.containerId),
+          orElse: () => '',
+        );
+        item.parseStats(statsLine);
+      }
+    } catch (e) {
+      error = DockerErr(type: DockerErrType.unknown, message: e.toString());
+    } finally {
+      setBusyState(false);
+    }
   }
 
   Future<void> _onPwd(String event, StreamSink<Uint8List> stdin) async {
@@ -163,11 +189,11 @@ class DockerProvider extends BusyProvider {
     return null;
   }
 
-  // judge whether to use DOCKER_HOST / sudo
+  // judge whether to use DOCKER_HOST
   String _wrap(String cmd) {
     final dockerHost = dockerStore.getDockerHost(hostId!);
     if (dockerHost == null || dockerHost.isEmpty) {
-      return 'sudo $cmd'.withLangExport;
+      return cmd.withLangExport;
     }
     return 'export DOCKER_HOST=$dockerHost && $cmd'.withLangExport;
   }

lib/data/provider/server.dart

@@ -245,8 +245,7 @@ class ServerProvider extends BusyProvider {
 
       if (s.client == null) return;
       // run script to get server status
-      raw =
-          await s.client!.run("sh $shellPath -${shellFuncStatus.flag}").string;
+      raw = await s.client!.run(shellFuncStatus.exec).string;
       segments = raw.split(seperator).map((e) => e.trim()).toList();
       if (raw.isEmpty || segments.length != CmdType.values.length) {
         s.state = ServerState.failed;

lib/data/res/build_data.dart

@@ -2,8 +2,8 @@
 
 class BuildData {
   static const String name = "ServerBox";
-  static const int build = 403;
+  static const int build = 404;
   static const String engine = "3.10.6";
-  static const String buildAt = "2023-08-02 19:59:01.356049";
+  static const String buildAt = "2023-08-02 20:14:57.880607";
   static const int modifications = 4;
 }

lib/data/res/server_cmd.dart

@@ -8,7 +8,6 @@ const shellPath = '$serverBoxDir/mobile_app.sh';
 const echoPWD = 'echo \$PWD';
 
 enum CmdType {
-  export,
   net,
   sys,
   cpu,
@@ -23,7 +22,6 @@ enum CmdType {
 }
 
 const _cmdList = [
-  'export LANG=en_US.utf-8',
   'cat /proc/net/dev && date +%s',
   'cat /etc/os-release | grep PRETTY_NAME',
   'cat /proc/stat | grep cpu',
@@ -43,30 +41,32 @@ final shellFuncStatus = AppShellFunc(
   's',
 );
 
-// Check if `htop` is installed.
-// Then app open SSH term and use `htop` or `ps` to see process.
-const shellFuncProcess = AppShellFunc(
-  'process',
-  '''
-if command -v htop &> /dev/null
-then
-  htop
-else
-  top 
-fi
-''',
-  'p',
+const dockerCmds = [
+  'docker version',
+  'docker ps -a',
+  'docker stats --no-stream',
+  'docker image ls',
+];
+
+final shellFuncDocker = AppShellFunc(
+  // `dockeR` -> avoid conflict with `docker` command
+  // 以防止循环递归
+  'dockeR',
+  dockerCmds.join('\necho $seperator\n'),
+  'd',
 );
 
 final _generated = [
   shellFuncStatus,
-  shellFuncProcess,
+  shellFuncDocker,
 ].generate;
 
 final shellCmd = """
 # Script for app `${BuildData.name} v1.0.${BuildData.build}`
 # Delete this file while app is running will cause app crash
 
+export LANG=en_US.utf-8
+
 $_generated
 """;