cmd

var RootCmd = &cobra.Command{
	Use: "cache warmer",
	PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
		if err := logging.Configure(logLevel, logFormat, logTimestamp); err != nil {
			return err
		}

		if len(opts.Images) == 0 {
			return errors.New("You must select at least one image to cache")
		}
		return nil
	},
	Run: func(cmd *cobra.Command, args []string) {
		if _, err := os.Stat(opts.CacheDir); os.IsNotExist(err) {
			err = os.MkdirAll(opts.CacheDir, 0755)
			if err != nil {
				exit(errors.Wrap(err, "Failed to create cache directory"))
			}
		}
		if err := cache.WarmCache(opts); err != nil {
			exit(errors.Wrap(err, "Failed warming cache"))
		}

	},
}