Struct Spinner 

pub struct Spinner { /* private fields */ }

A simple spinner for single-step or short sequential operations.

Automatically disables itself when stderr is not a TTY (e.g. piped output) or when the output does not allow progress (e.g. inside the TUI). A hidden spinner writes its messages as plain lines to the output’s error channel.

Implementations

impl Spinner

pub fn new(message: &str, output: &Output) -> Self

Creates and starts a spinner with the given message. A hidden spinner writes the message as a note.

pub fn set_message(&self, message: impl Into<String>)

Updates the spinner message in-place.

pub fn finish(&self, message: &str)

Finishes the spinner with a success message (checkmark).

pub fn finish_warn(&self, message: &str)

Finishes the spinner with a warning message.

pub fn finish_and_clear(&self)

Finishes and clears the spinner line (no residual output).

pub fn println(&self, message: &str)

Writes a note above the spinner. The spinner’s line is cleared while the note is written and drawn again below it. The note goes through the Output, so a TUI run keeps a copy.