Function format_items

crates/lib/src/lints.rs:213–247

Helper function to format items with optional truncation

(
    config: &LintExecutionConfig,
    header: &str,
    items: impl Iterator<Item = T>,
    o: &mut String,
)

// Helper function to format items with optional truncation
fn format_items<T>(
    config: &LintExecutionConfig,
    header: &str,
    items: impl Iterator<Item = T>,
    o: &mut String,
) -> Result<()>
where
    T: Display,
{
    let mut items = items.into_iter();
    if config.no_truncate {
        let Some(first) = items.next() else {
            return Ok(());
        };
        writeln!(o, "{header}:")?;
        writeln!(o, "  {first}")?;
        for item in items {
            writeln!(o, "  {item}")?;
        }
        return Ok(());
    } else {
        let Some((samples, rest)) = bootc_utils::collect_until(items, DEFAULT_TRUNCATED_OUTPUT)
        else {
            return Ok(());
        };
        writeln!(o, "{header}:")?;
        for item in samples {
            writeln!(o, "  {item}")?;
        }
        if rest > 0 {
            writeln!(o, "  ...and {rest} more")?;
        }
    }
    Ok(())
}

// Helper to build a lint error message from multiple sections.
// The closure `build_message_fn` is responsible for calling `format_items`