Clean cmd + VM image pruning

cmd/clean.go

@@ -0,0 +1,41 @@
+package cmd
+
+import (
+	"bufio"
+	"fmt"
+	"log/slog"
+	"os"
+	"strings"
+
+	"github.com/spf13/cobra"
+)
+
+var cleanCmd = &cobra.Command{
+	Use:   "clean",
+	Short: "Remove all downloaded VM images.",
+	Run: func(cmd *cobra.Command, args []string) {
+		store := createStore()
+
+		fmt.Fprintf(os.Stderr, "Will delete all VM images in the data directory. Proceed? (y/n) > ")
+
+		reader := bufio.NewReader(os.Stdin)
+		answer, err := reader.ReadBytes('\n')
+		if err != nil {
+			slog.Error("Failed to read answer", "error", err.Error())
+			os.Exit(1)
+		}
+
+		if strings.ToLower(string(answer)) != "y\n" {
+			fmt.Fprintf(os.Stderr, "Aborted.\n")
+			os.Exit(2)
+		}
+
+		deleted, err := store.CleanImages(false)
+		if err != nil {
+			slog.Error("Failed to clean images", "error", err.Error())
+			os.Exit(1)
+		}
+
+		slog.Info("Successful VM image cleanup", "deleted", deleted)
+	},
+}