34 lines
1 KiB
Rust
34 lines
1 KiB
Rust
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use std::time::Duration;
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/// A terminal spinner for a research phase, shown only when logging is off —
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/// with logging on, the trace output already tells the user something is
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/// happening, and interleaving both would just be noisy. Clearing on drop
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/// means call sites don't need an explicit "stop" at every early return.
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pub(crate) struct Spinner(Option<indicatif::ProgressBar>);
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impl Spinner {
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pub(crate) fn start(enabled: bool, message: &'static str) -> Self {
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if !enabled {
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return Self(None);
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}
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let bar = indicatif::ProgressBar::new_spinner();
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bar.enable_steady_tick(Duration::from_millis(100));
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bar.set_style(
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indicatif::ProgressStyle::with_template("{spinner:.cyan} {msg}")
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.expect("static template is valid"),
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);
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bar.set_message(message);
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Self(Some(bar))
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}
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}
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impl Drop for Spinner {
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fn drop(&mut self) {
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if let Some(bar) = &self.0 {
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bar.finish_and_clear();
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}
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}
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}
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