fn process_book_item()

in helpers/mdbook-exercise-linker/src/lib.rs [44:75]

• 27 lines of code
• 3 McCabe index (conditional complexity)

fn process_book_item(item: &mut BookItem, renderer: &str, root_url: &str) {
    match item {
        BookItem::Chapter(chapter) => {
            chapter.sub_items.iter_mut().for_each(|item| {
                process_book_item(item, renderer, root_url);
            });

            let Some(source_path) = &chapter.source_path else {
                return;
            };
            let source_path = source_path.display().to_string();

            // Ignore non-exercise chapters
            if !source_path.chars().take(2).all(|c| c.is_digit(10)) {
                return;
            }

            let exercise_path = source_path.strip_suffix(".md").unwrap();
            let link_section = format!(
                    "\n## Exercise\n\nThe exercise for this section is located in [`{exercise_path}`]({})\n",
                    format!("{}/{}", root_url, exercise_path)
                );
            chapter.content.push_str(&link_section);

            if renderer == "pandoc" {
                chapter.content.push_str("`\\newpage`{=latex}\n");
            }
        }
        BookItem::Separator => {}
        BookItem::PartTitle(_) => {}
    }
}