Function jj_cli::diff_util::show_diff

pub fn show_diff(
    ui: &Ui,
    formatter: &mut dyn Formatter,
    workspace_command: &WorkspaceCommandHelper,
    from_tree: &MergedTree,
    to_tree: &MergedTree,
    matcher: &dyn Matcher,
    formats: &[DiffFormat]
) -> Result<(), CommandError>