Added "names" function to show all VMs and CTs across the cluster - 0.1.3

Go/main.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"bytes"
+	"encoding/json"
 	"errors"
 	"fmt"
 	"os"
@@ -11,11 +12,13 @@ import (
 	"strings"
 )
 
+const version = "V0.1.3"
+
 var (
 	tmpDir  string
 	numeric = regexp.MustCompile(`^[0-9]+$`)
 )
-const version = "V0.1.2"
+
 func main() {
 	if os.Geteuid() != 0 {
 		fmt.Fprintf(os.Stderr, "Run this program as root, for example: sudo %s\n", os.Args[0])
@@ -286,13 +289,51 @@ func showText(title, text string) {
 	)
 }
 
+func showResourceNames(title, resourceType string) {
+	output, err := exec.Command(
+		"pvesh", "get", "/cluster/resources", "--output-format", "json",
+	).CombinedOutput()
+	if err != nil {
+		text := string(output)
+		if text == "" {
+			text = err.Error()
+		}
+		showText(title, text)
+		return
+	}
+
+	var resources []struct {
+		Type string `json:"type"`
+		Name string `json:"name"`
+	}
+	if err := json.Unmarshal(output, &resources); err != nil {
+		showText(title, "Could not parse pvesh output:\n"+err.Error())
+		return
+	}
+
+	var names []string
+	for _, resource := range resources {
+		if resource.Type == resourceType {
+			names = append(names, resource.Name)
+		}
+	}
+
+	if len(names) == 0 {
+		showText(title, "No matching resources found.\n")
+		return
+	}
+
+	showText(title, strings.Join(names, "\n")+"\n")
+}
+
 func vmMenu() {
 	for {
 		choice := menu(
 			"Virtual Machines (QEMU)",
 			"Choose an action:",
-			16, 72, 8,
+			18, 72, 10,
 			"list", "List VMs (qm list)",
+			"names", "List VM names",
 			"config", "Show VM configuration",
 			"memory", "Show VM memory setting",
 			"unlock", "Unlock a VM",
@@ -304,6 +345,10 @@ func vmMenu() {
 			if requireCommand("qm") {
 				showOutput("VM list", "qm", "list")
 			}
+		case "names":
+			if requireCommand("pvesh") {
+				showResourceNames("VM names", "qemu")
+			}
 		case "config", "memory", "unlock":
 			if !requireCommand("qm") {
 				continue
@@ -338,8 +383,9 @@ func containerMenu() {
 		choice := menu(
 			"Containers (LXC)",
 			"Choose an action:",
-			14, 72, 6,
+			16, 72, 8,
 			"list", "List containers (pct list)",
+			"names", "List container names",
 			"config", "Show container configuration",
 			"unlock", "Unlock a container",
 			"back", "Back",
@@ -350,6 +396,10 @@ func containerMenu() {
 			if requireCommand("pct") {
 				showOutput("Container list", "pct", "list")
 			}
+		case "names":
+			if requireCommand("pvesh") {
+				showResourceNames("Container names", "lxc")
+			}
 		case "config", "unlock":
 			if !requireCommand("pct") {
 				continue