#148 fix: alpine process

lib/data/model/app/shell_func.dart

@@ -2,14 +2,16 @@ import '../../res/build_data.dart';
 import '../../res/server_cmd.dart';
 import '../server/system.dart';
 
-const _cmdDivider = '\necho $seperator\n';
+const _cmdDivider = '\necho $seperator\n\t';
 
 const _serverBoxDir = r'$HOME/.config/server_box';
 const _shellPath = '$_serverBoxDir/mobile_app.sh';
 
 enum AppShellFuncType {
   status,
-  docker;
+  docker,
+  process,
+  ;
 
   String get flag {
     switch (this) {
@@ -17,6 +19,8 @@ enum AppShellFuncType {
         return 's';
       case AppShellFuncType.docker:
         return 'd';
+      case AppShellFuncType.process:
+        return 'p';
     }
   }
 
@@ -30,6 +34,8 @@ enum AppShellFuncType {
         // `dockeR` -> avoid conflict with `docker` command
         // 以防止循环递归
         return 'dockeR';
+      case AppShellFuncType.process:
+        return 'process';
     }
   }
 
@@ -39,17 +45,36 @@ enum AppShellFuncType {
         return '''
 result=\$(uname 2>&1 | grep "Linux")
 if [ "\$result" != "" ]; then
-${_statusCmds.join(_cmdDivider)}
+\t${_statusCmds.join(_cmdDivider)}
 else
-${_bsdStatusCmd.join(_cmdDivider)}
+\t${_bsdStatusCmd.join(_cmdDivider)}
 fi''';
       case AppShellFuncType.docker:
         return '''
 result=\$(docker version 2>&1 | grep "permission denied")
 if [ "\$result" != "" ]; then
-${_dockerCmds.join(_cmdDivider)}
+\t${_dockerCmds.join(_cmdDivider)}
 else
-${_dockerCmds.map((e) => "sudo -S $e").join(_cmdDivider)}
+\t${_dockerCmds.map((e) => "sudo -S $e").join(_cmdDivider)}
+fi''';
+      case AppShellFuncType.process:
+        return '''
+# Try sequencially
+# main Linux: `ps -aux`
+# BSD: `ps -ax`
+# alpine: `ps -o pid,user,time,args`
+#
+# If there is any error, try another one
+result=\$(ps -aux 2>&1 | grep "ps: ")
+if [ "\$result" = "" ]; then
+  ps -aux
+else
+  result=\$(ps -ax 2>&1 | grep "ps: ")
+  if [ "\$result" = "" ]; then
+    ps -ax
+  else
+    ps -o pid,user,time,args
+  fi
 fi''';
     }
   }

lib/data/model/server/proc.dart

@@ -1,18 +1,16 @@
-// Models for `ps -aux`
-
-// Each line
-import 'dart:convert';
+import '../../../data/res/misc.dart';
 
+/// Some field can be null due to incompatible format on `BSD` and `Alpine`
 class Proc {
   final String user;
   final int pid;
-  final double cpu;
-  final double mem;
-  final String vsz;
-  final String rss;
-  final String tty;
-  final String stat;
-  final String start;
+  final double? cpu;
+  final double? mem;
+  final String? vsz;
+  final String? rss;
+  final String? tty;
+  final String? stat;
+  final String? start;
   final String time;
   final String command;
 
@@ -65,7 +63,7 @@ class Proc {
 
   @override
   String toString() {
-    return const JsonEncoder.withIndent('  ').convert(toJson());
+    return jsonEncoder.convert(toJson());
   }
 
   String get binary {
@@ -99,10 +97,10 @@ class PsResult {
     }
     switch (sort) {
       case ProcSortMode.cpu:
-        procs.sort((a, b) => b.cpu.compareTo(a.cpu));
+        procs.sort((a, b) => b.cpu?.compareTo(a.cpu ?? 0) ?? 0);
         break;
       case ProcSortMode.mem:
-        procs.sort((a, b) => b.mem.compareTo(a.mem));
+        procs.sort((a, b) => b.mem?.compareTo(a.mem ?? 0) ?? 0);
         break;
       case ProcSortMode.pid:
         procs.sort((a, b) => a.pid.compareTo(b.pid));
@@ -110,6 +108,9 @@ class PsResult {
       case ProcSortMode.user:
         procs.sort((a, b) => a.user.compareTo(b.user));
         break;
+      case ProcSortMode.name:
+        procs.sort((a, b) => a.binary.compareTo(b.binary));
+        break;
     }
     return PsResult(procs: procs, error: err.isEmpty ? null : err);
   }
@@ -119,5 +120,7 @@ enum ProcSortMode {
   cpu,
   mem,
   pid,
-  user;
+  user,
+  name,
+  ;
 }