Function check_missing_dependencies

atomic-repository/src/apply/mod.rs:138–143

Check what dependencies are missing for a change. This is useful for determining what needs to be fetched from a remote before a change can be inserted. # Arguments `txn` - Read transaction `change` - The change to check # Returns A vector of missing dependency hashes (empty if all deps are present).

(
    txn: &T,
    change: &Change,
)

///
/// A vector of missing dependency hashes (empty if all deps are present).
pub fn check_missing_dependencies<T: GraphTxnT>(
    txn: &T,
    change: &Change,
) -> InsertResult<Vec<Hash>> {
    verify_dependencies(txn, change).map_err(|e| InsertError::Database(e.to_string()))
}

/// Determine the order to insert a set of changes respecting dependencies.
///