utils

func CacheDir() string

func Exec(command string, args []string) (string, error)

func Exists(path string) (bool, error)

func FileNameWithoutExtension(path string) string

func FileWalk(root string, walkFn func(r io.Reader, path string) error) error

func GenWorkers(num int) chan<- func()

func GetDefaultLogDir() string

func SetLogger(logToFile bool, logDir string, debug, logJSON bool) error