Enhance service list

main.go

@@ -12,6 +12,7 @@ import (
 	"os/exec"
 	"path/filepath"
 	"strings"
+	"text/tabwriter"
 	"time"
 
 	api "git.scc.kit.edu/feudal/feudalSSH/api"
@@ -165,11 +166,20 @@ func findServiceID() (serviceID int) {
 	json.Unmarshal(serviceBytes, &services)
 
 	if *serviceName == "" {
-		fmt.Println("Available services:")
+		fmt.Printf("Available services: (Services availability is based on your VO membership)\n\n")
+		const (
+			minWidth = 0
+			padding  = 3
+			tabWidth = 4
+		)
+		w := tabwriter.NewWriter(os.Stdout, minWidth, tabWidth, padding, ' ', 0)
+		fmt.Fprintf(w, "Service Name\tDescription\t\n")
 		for _, s := range services {
-			fmt.Println(s)
+			fmt.Fprintf(w, "  - '%s'\t%s\t\n", s.Name, s.Description)
 		}
-		log.Fatal("Specify service name to use. See --help")
+		w.Flush()
+		fmt.Println("\nSpecify service name to use. See --help")
+		os.Exit(1)
 	}
 
 	// find the service id