fix(tasks): fix task cancellation process tree leak, emit cancelled events, and refine status badges styling

internal/constant/constant.go

@@ -81,11 +81,12 @@ const (
 	EventPasswordChanged = "password_changed"
 
 	// 任务事件类型
-	EventTaskSuccess = "task_success"
-	EventTaskFailed  = "task_failed"
-	EventTaskTimeout = "task_timeout"
-	EventTaskRunning = "task_running"
-	EventTaskQueued  = "task_queued"
+	EventTaskSuccess   = "task_success"
+	EventTaskFailed    = "task_failed"
+	EventTaskTimeout   = "task_timeout"
+	EventTaskRunning   = "task_running"
+	EventTaskQueued    = "task_queued"
+	EventTaskCancelled = "task_cancelled"
 
 	// 其他事件类型
 	EventSystemNotice = "system_notice"

internal/executor/executor.go

@@ -161,6 +161,9 @@ func ExecuteWithHooks(ctx context.Context, req Request, stdout, stderr io.Writer
 	shell, args := utils.GetShellCommand(req.Command)
 	cmd := exec.CommandContext(execCtx, shell, args...)
 
+	usePty := runtime.GOOS != "windows" && stdout != nil && (stdout == stderr || stdout == io.Discard)
+	SetProcessGroupAndCancel(cmd, usePty)
+
 	// 设置工作目录
 	// 设置工作目录
 	workDir := strings.TrimSpace(req.WorkDir)

internal/executor/proc_unix.go

@@ -0,0 +1,21 @@
+//go:build !windows
+
+package executor
+
+import (
+	"os/exec"
+	"syscall"
+)
+
+func SetProcessGroupAndCancel(cmd *exec.Cmd, usePty bool) {
+	if !usePty {
+		cmd.SysProcAttr = &syscall.SysProcAttr{Setpgid: true}
+	}
+	cmd.Cancel = func() error {
+		if cmd.Process != nil {
+			// Kill the entire process group by sending SIGKILL to negative PID
+			return syscall.Kill(-cmd.Process.Pid, syscall.SIGKILL)
+		}
+		return nil
+	}
+}

internal/executor/proc_windows.go

@@ -0,0 +1,18 @@
+//go:build windows
+
+package executor
+
+import (
+	"fmt"
+	"os/exec"
+)
+
+func SetProcessGroupAndCancel(cmd *exec.Cmd, usePty bool) {
+	cmd.Cancel = func() error {
+		if cmd.Process != nil {
+			killCmd := exec.Command("taskkill", "/F", "/T", "/PID", fmt.Sprintf("%d", cmd.Process.Pid))
+			return killCmd.Run()
+		}
+		return nil
+	}
+}

internal/services/system_ws_service.go

@@ -100,6 +100,7 @@ func (m *SystemWSManager) SubscribeEvents(bus *eventbus.EventBus) {
 		constant.EventTaskTimeout,
 		constant.EventTaskRunning,
 		constant.EventTaskQueued,
+		constant.EventTaskCancelled,
 	}
 
 	for _, evt := range taskEvents {

internal/services/tasks/executor_service.go

@@ -304,6 +304,8 @@ func (h *ServerSchedulerHandler) OnTaskCompleted(req *executor.ExecutionRequest,
 			eventType = constant.EventTaskFailed
 		case constant.TaskStatusTimeout:
 			eventType = constant.EventTaskTimeout
+		case constant.TaskStatusCancelled:
+			eventType = constant.EventTaskCancelled
 		}
 		if eventType != "" {
 			eventbus.DefaultBus.Publish(eventbus.Event{