Function PopFirstArgument

cli/cli.go:74–79

PopFirstArgument returns the first element and the rest of a string slice and return error if failed to do so. It is a helper function to parse non-flag arguments previously used in cfssl commands.

(args []string)

// slice and return error if failed to do so. It is a helper function
// to parse non-flag arguments previously used in cfssl commands.
func PopFirstArgument(args []string) (string, []string, error) {
	if len(args) < 1 {
		return "", nil, errors.New("not enough arguments are supplied --- please refer to the usage")
	}
	return args[0], args[1:], nil
}

// Start is the entrance point of cfssl command line tools.
func Start(cmds map[string]*Command) error {