filetools

func CopyTree(
	src_path string,
	dst_path string,
	dst_not_empty_is_error bool,
	clear_dst_dir bool,
	files_already_exists_is_error bool,
	overwrite_existing_files bool,
	log logger.LoggerI,
	verbose_log bool,
	pass_log bool,
	copy_file_cb func(src, dst string, log logger.LoggerI) error,
) error

func CopyWithInfo(src, dst string, log logger.LoggerI) error

func CopyWithOptions(
	src string,
	dst string,
	log logger.LoggerI,
	copyinfo bool,
	dereference_symlinks bool,
) error

func ListDir(pth string) ([]os.FileInfo, []os.FileInfo, error)

func Walk(
	pth string,
	target func(
		dir string,
		dirs []os.FileInfo,
		files []os.FileInfo,
	) error,
) error

func Which(executable_name string, under []string) (string, error)