Method get_missing_changes_between

atomic-repository/src/repository/insert.rs:2223–2249

Get changes that are in one view but not another. This is useful for determining what needs to be inserted when merging or cherry-picking between views. # Arguments `from_view` - Source view name `to_view` - Target view name (None = current view) # Returns Vector of hashes that are in `from_view` but not in `to_view`, in dependency order. # Example ```rust,ignore // Find what's in feature t

(
        &self,
        from_view: &str,
        to_view: Option<&str>,
    )

    /// println!("{} changes to insert", missing.len());
    /// ```
    pub fn get_missing_changes_between(
        &self,
        from_view: &str,
        to_view: Option<&str>,
    ) -> Result<Vec<Hash>, RepositoryError> {
        let txn = self
            .pristine
            .read_txn()
            .map_err(|e| RepositoryError::Database(e.to_string()))?;

        let from = txn
            .get_view(from_view)
            .map_err(|e| RepositoryError::Database(e.to_string()))?
            .ok_or_else(|| RepositoryError::ViewNotFound {
                name: from_view.to_string(),
            })?;

        let to_name = to_view.unwrap_or(&self.current_view);
        let to = txn
            .get_view(to_name)
            .map_err(|e| RepositoryError::Database(e.to_string()))?
            .ok_or_else(|| RepositoryError::ViewNotFound {
                name: to_name.to_string(),
            })?;

        get_missing_changes(&txn, &from, &to).map_err(|e| RepositoryError::Apply(e.to_string()))
    }

    /// Get changes up to a specific tag in a view.
    ///