use anyhow::bail;

use anyhow::{anyhow, bail};

    /// Identifier of the change (unambiguous prefixes are accepted)

    /// Show N changes in a text editor if no <change-id>s were given.
    /// Defaults to the value
    /// of `unrecord_changes` in your global configuration.
    #[clap(long = "show-changes", value_name = "N", conflicts_with("change-id"))]
    show_changes: Option<usize>,
    /// The hash of a change (unambiguous prefixes are accepted)

                let number_of_changes = crate::config::Global::load()
                    .ok()
                    .and_then(|cfg| cfg.unrecord_changes)
                    .unwrap_or(20);

                let number_of_changes = if let Some(n) = self.show_changes {
                    n
                } else {
                    let cfg = crate::config::Global::load()?;
                    cfg.unrecord_changes.ok_or_else(|| {
                        anyhow!(
                            "Can't determine how many changes to show. \
                            Please set the `unrecord_changes` option in \
                            your global config or run `pijul unrecord` \
                            with the `--show-changes` option."
                        )
                    })?
                };