initial commit

cmd/list.go

@@ -0,0 +1,56 @@
+package cmd
+
+import (
+	"fmt"
+	"os"
+	"strings"
+	"syscall"
+
+	"github.com/spf13/cobra"
+)
+
+var listCmd = &cobra.Command{
+	Use:   "list",
+	Short: "List all active SSH tunnels",
+	Long:  `Display all currently active SSH tunnels managed by this tool.`,
+	Run: func(cmd *cobra.Command, args []string) {
+		listTunnels()
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(listCmd)
+}
+
+func listTunnels() {
+	tunnels, err := getTunnels()
+	if err != nil {
+		fmt.Printf("Error listing tunnels: %v\n", err)
+		os.Exit(1)
+	}
+
+	if len(tunnels) == 0 {
+		fmt.Println("No active SSH tunnels found.")
+		return
+	}
+
+	fmt.Println("Active SSH tunnels:")
+	fmt.Printf("%-5s %-15s %-20s %-10s\n", "ID", "LOCAL", "REMOTE", "PID")
+	fmt.Println(strings.Repeat("-", 60))
+	
+	for _, t := range tunnels {
+		// Check if the process is still running
+		process, err := os.FindProcess(t.PID)
+		if err != nil || process.Signal(syscall.Signal(0)) != nil {
+			// Process does not exist anymore, clean up the tunnel file
+			removeFile(t.ID)
+			continue
+		}
+		
+		fmt.Printf("%-5d %-15s %-20s %-10d\n", 
+			t.ID, 
+			fmt.Sprintf("localhost:%d", t.LocalPort),
+			fmt.Sprintf("%s:%d", t.RemoteHost, t.RemotePort),
+			t.PID)
+	}
+}