Method reinsert_change

atomic-repository/src/repository/history.rs:308–348

Reinsert a previously unrecorded change at a specific position. This is part of the Gerrit-like workflow where a change can be removed, modified, and re-inserted at its original position (or appended). # Arguments `hash` - Hash of the change to reinsert `at_sequence` - The sequence position to insert at (None = append to end) # Returns The new state and sequence after reinsertion. # Example

(
        &self,
        hash: &Hash,
        at_sequence: Option<u64>,
    )

    /// repo.reinsert_change(&hash, outcome.original_sequence)?;
    /// ```
    pub fn reinsert_change(
        &self,
        hash: &Hash,
        at_sequence: Option<u64>,
    ) -> Result<(Merkle, u64), RepositoryError> {
        // Get write transaction
        let mut txn = self
            .pristine
            .write_txn()
            .map_err(|e| RepositoryError::Database(e.to_string()))?;

        // Get the view
        let mut view = txn
            .open_or_create_view(&self.current_view)
            .map_err(|e| RepositoryError::Database(e.to_string()))?;

        // Get internal ID (must already be registered)
        let change_id = txn
            .get_internal(hash)
            .map_err(|e| RepositoryError::Database(e.to_string()))?
            .ok_or_else(|| RepositoryError::ChangeNotFound {
                hash: hash.to_base32(),
            })?;

        // Determine insertion point
        let insert_at = at_sequence.unwrap_or(view.change_count);

        // Reinsert the change
        txn.reinsert_change(&mut view, change_id, hash, insert_at)
            .map_err(|e| RepositoryError::Database(e.to_string()))?;

        // Update the view
        txn.update_view(&view)
            .map_err(|e| RepositoryError::Database(e.to_string()))?;

        // Commit the transaction
        txn.commit()
            .map_err(|e| RepositoryError::Database(e.to_string()))?;

        Ok((view.state, view.change_count))
    }

    /// Check if a change can be unrecorded.
    ///