Method view_own_change_hashes

atomic-repository/src/repository/split.rs:484–505

Return the source view's own change hashes in sequence order. Used by the CLI to resolve `--last N` into concrete change hashes. Only the view's own log is returned (inherited changes are excluded), which matches what [`split_view`](Self::split_view) can operate on.

(&self, view_name: &str)

    /// the view's own log is returned (inherited changes are excluded), which
    /// matches what [`split_view`](Self::split_view) can operate on.
    pub fn view_own_change_hashes(&self, view_name: &str) -> Result<Vec<Hash>, RepositoryError> {
        let db = |e: PristineError| RepositoryError::Database(e.to_string());
        let txn = self.pristine.read_txn().map_err(db)?;
        let view =
            txn.get_view(view_name)
                .map_err(db)?
                .ok_or_else(|| RepositoryError::ViewNotFound {
                    name: view_name.to_string(),
                })?;

        let mut out = Vec::new();
        for item in txn.iter_changes(&view, 0).map_err(db)? {
            let (_seq, id, _merkle) = item.map_err(db)?;
            let hash = txn.get_external(id).map_err(db)?.ok_or_else(|| {
                RepositoryError::ChangeNotFound {
                    hash: format!("id={}", id.0),
                }
            })?;
            out.push(hash);
        }
        Ok(out)
    }
}