errors: move errors module to transport module

Originally, all errors could be found under scylla::transport::errors.
Let's retain the same path.

scylla/src/history.rs

@@ -7,7 +7,7 @@ use std::{
     time::SystemTime,
 };
 
-use crate::{errors::QueryError, retry_policy::RetryDecision};
+use crate::{retry_policy::RetryDecision, transport::errors::QueryError};
 use chrono::{DateTime, Utc};
 
 use tracing::warn;
@@ -455,10 +455,10 @@ mod tests {
     };
 
     use crate::{
-        errors::{DbError, QueryError},
         query::Query,
         retry_policy::RetryDecision,
         test_utils::setup_tracing,
+        transport::errors::{DbError, QueryError},
         utils::test_utils::unique_keyspace_name,
     };
 

scylla/src/lib.rs

@@ -170,7 +170,6 @@ pub mod authentication;
 #[cfg(feature = "cloud")]
 pub mod cloud;
 
-pub mod errors;
 pub mod history;
 pub mod routing;
 pub mod statement;

scylla/src/statement/batch.rs

@@ -216,8 +216,8 @@ pub(crate) mod batch_values {
     use scylla_cql::types::serialize::row::SerializedValues;
     use scylla_cql::types::serialize::{RowWriter, SerializationError};
 
-    use crate::errors::QueryError;
     use crate::routing::Token;
+    use crate::transport::errors::QueryError;
 
     use super::BatchStatement;
 

scylla/src/statement/prepared_statement.rs

@@ -13,12 +13,12 @@ use thiserror::Error;
 use uuid::Uuid;
 
 use super::{PageSize, StatementConfig};
-use crate::errors::{BadQuery, QueryError};
 use crate::frame::response::result::PreparedMetadata;
 use crate::frame::types::{Consistency, SerialConsistency};
 use crate::history::HistoryListener;
 use crate::retry_policy::RetryPolicy;
 use crate::routing::Token;
+use crate::transport::errors::{BadQuery, QueryError};
 use crate::transport::execution_profile::ExecutionProfileHandle;
 use crate::transport::partitioner::{Partitioner, PartitionerHasher, PartitionerName};
 

scylla/src/transport/caching_session.rs

@@ -1,8 +1,8 @@
 use crate::batch::{Batch, BatchStatement};
-use crate::errors::QueryError;
 use crate::prepared_statement::PreparedStatement;
 use crate::query::Query;
 use crate::statement::{PagingState, PagingStateResponse};
+use crate::transport::errors::QueryError;
 use crate::transport::iterator::RowIterator;
 use crate::transport::partitioner::PartitionerName;
 use crate::{QueryResult, Session};

scylla/src/transport/cluster.rs

@@ -1,8 +1,8 @@
-use crate::errors::{BadQuery, NewSessionError, QueryError};
 /// Cluster manages up to date information and connections to database nodes
 use crate::frame::response::event::{Event, StatusChangeEvent};
 use crate::prepared_statement::TokenCalculationError;
 use crate::routing::{Shard, Token};
+use crate::transport::errors::{BadQuery, NewSessionError, QueryError};
 use crate::transport::host_filter::HostFilter;
 use crate::transport::session::TABLET_CHANNEL_SIZE;
 use crate::transport::{

scylla/src/transport/connection.rs

@@ -30,7 +30,7 @@ use tokio_openssl::SslStream;
 pub(crate) use ssl_config::SslConfig;
 
 use crate::authentication::AuthenticatorProvider;
-use crate::errors::{
+use crate::transport::errors::{
     BadKeyspaceName, BrokenConnectionError, BrokenConnectionErrorKind, ConnectionError,
     ConnectionSetupRequestError, ConnectionSetupRequestErrorKind, CqlEventHandlingError, DbError,
     QueryError, RequestError, ResponseParseError, TranslationError, UserRequestError,
@@ -2709,7 +2709,7 @@ mod tests {
     #[ntest::timeout(20000)]
     #[cfg(not(scylla_cloud_tests))]
     async fn connection_is_closed_on_no_response_to_keepalives() {
-        use crate::errors::BrokenConnectionErrorKind;
+        use crate::transport::errors::BrokenConnectionErrorKind;
 
         setup_tracing();
 

scylla/src/transport/connection_pool.rs

@@ -1,8 +1,10 @@
 #[cfg(feature = "cloud")]
 use crate::cloud::set_ssl_config_for_scylla_cloud_host;
 
-use crate::errors::{BrokenConnectionErrorKind, ConnectionError, ConnectionPoolError, QueryError};
 use crate::routing::{Shard, ShardCount, Sharder};
+use crate::transport::errors::{
+    BrokenConnectionErrorKind, ConnectionError, ConnectionPoolError, QueryError,
+};
 use crate::transport::{
     connection,
     connection::{Connection, ConnectionConfig, ErrorReceiver, VerifiedKeyspaceName},

scylla/src/transport/downgrading_consistency_retry_policy.rs

@@ -2,8 +2,8 @@ use scylla_cql::Consistency;
 use tracing::debug;
 
 use crate::{
-    errors::{DbError, QueryError, WriteType},
     retry_policy::{QueryInfo, RetryDecision, RetryPolicy, RetrySession},
+    transport::errors::{DbError, QueryError, WriteType},
 };
 
 /// Downgrading consistency retry policy - retries with lower consistency level if it knows\
@@ -185,8 +185,8 @@ mod tests {
 
     use bytes::Bytes;
 
-    use crate::errors::BadQuery;
     use crate::test_utils::setup_tracing;
+    use crate::transport::errors::BadQuery;
 
     use super::*;
 

scylla/src/errors.rs → scylla/src/transport/errors.rs

@@ -585,7 +585,7 @@ impl From<RequestError> for UserRequestError {
 /// - Driver was unable to allocate a stream id for a request
 ///
 /// This error type is only destined to narrow the return error type
-/// of some functions that would previously return [`crate::errors::QueryError`].
+/// of some functions that would previously return [`crate::transport::errors::QueryError`].
 #[derive(Error, Debug)]
 pub(crate) enum RequestError {
     #[error(transparent)]
@@ -621,7 +621,7 @@ pub(crate) enum ResponseParseError {
 mod tests {
     use scylla_cql::Consistency;
 
-    use crate::errors::{DbError, QueryError, WriteType};
+    use crate::transport::errors::{DbError, QueryError, WriteType};
 
     #[test]
     fn write_type_from_str() {

scylla/src/transport/iterator.rs

@@ -19,7 +19,6 @@ use super::execution_profile::ExecutionProfileInner;
 use super::session::RequestSpan;
 use crate::cql_to_rust::{FromRow, FromRowError};
 
-use crate::errors::{QueryError, UserRequestError};
 use crate::frame::response::{
     result,
     result::{ColumnSpec, Row, Rows},
@@ -29,6 +28,7 @@ use crate::statement::{prepared_statement::PreparedStatement, query::Query};
 use crate::statement::{Consistency, PagingState, SerialConsistency};
 use crate::transport::cluster::ClusterData;
 use crate::transport::connection::{Connection, NonErrorQueryResponse, QueryResponse};
+use crate::transport::errors::{QueryError, UserRequestError};
 use crate::transport::load_balancing::{self, RoutingInfo};
 use crate::transport::metrics::Metrics;
 use crate::transport::retry_policy::{QueryInfo, RetryDecision, RetrySession};
@@ -416,7 +416,7 @@ mod checked_channel_sender {
     use tokio::sync::mpsc;
     use uuid::Uuid;
 
-    use crate::errors::QueryError;
+    use crate::transport::errors::QueryError;
 
     use super::ReceivedPage;
 

scylla/src/transport/large_batch_statements_test.rs

@@ -1,9 +1,9 @@
 use assert_matches::assert_matches;
 
 use crate::batch::BatchType;
-use crate::errors::{BadQuery, QueryError};
 use crate::query::Query;
 use crate::test_utils::setup_tracing;
+use crate::transport::errors::{BadQuery, QueryError};
 use crate::{
     batch::Batch,
     test_utils::{create_new_session_builder, unique_keyspace_name},

scylla/src/transport/load_balancing/default.rs

@@ -3,8 +3,8 @@ pub use self::latency_awareness::LatencyAwarenessBuilder;
 
 use super::{FallbackPlan, LoadBalancingPolicy, NodeRef, RoutingInfo};
 use crate::{
-    errors::QueryError,
     routing::{Shard, Token},
+    transport::errors::QueryError,
     transport::{cluster::ClusterData, locator::ReplicaSet, node::Node, topology::Strategy},
 };
 use itertools::{Either, Itertools};
@@ -2550,9 +2550,9 @@ mod latency_awareness {
     use uuid::Uuid;
 
     use crate::{
-        errors::{DbError, QueryError},
         load_balancing::NodeRef,
         routing::Shard,
+        transport::errors::{DbError, QueryError},
         transport::node::Node,
     };
     use std::{

scylla/src/transport/load_balancing/mod.rs

@@ -4,8 +4,8 @@
 
 use super::{cluster::ClusterData, NodeRef};
 use crate::{
-    errors::QueryError,
     routing::{Shard, Token},
+    transport::errors::QueryError,
 };
 use scylla_cql::frame::{response::result::TableSpec, types};
 

scylla/src/transport/mod.rs

@@ -3,6 +3,7 @@ mod cluster;
 pub(crate) mod connection;
 mod connection_pool;
 pub mod downgrading_consistency_retry_policy;
+pub mod errors;
 pub mod execution_profile;
 pub mod host_filter;
 pub mod iterator;

scylla/src/transport/node.rs

@@ -2,12 +2,12 @@ use tokio::net::lookup_host;
 use tracing::warn;
 use uuid::Uuid;
 
-use crate::errors::{ConnectionPoolError, QueryError};
 /// Node represents a cluster node along with it's data and connections
 use crate::routing::{Shard, Sharder};
 use crate::transport::connection::Connection;
 use crate::transport::connection::VerifiedKeyspaceName;
 use crate::transport::connection_pool::{NodeConnectionPool, PoolConfig};
+use crate::transport::errors::{ConnectionPoolError, QueryError};
 
 use std::fmt::Display;
 use std::io;

scylla/src/transport/retry_policy.rs

@@ -2,8 +2,8 @@
 //! To decide when to retry a query the `Session` can use any object which implements
 //! the `RetryPolicy` trait
 
-use crate::errors::{DbError, QueryError, WriteType};
 use crate::frame::types::Consistency;
+use crate::transport::errors::{DbError, QueryError, WriteType};
 
 /// Information about a failed query
 pub struct QueryInfo<'a> {
@@ -219,10 +219,10 @@ impl RetrySession for DefaultRetrySession {
 #[cfg(test)]
 mod tests {
     use super::{DefaultRetryPolicy, QueryInfo, RetryDecision, RetryPolicy};
-    use crate::errors::{BadQuery, QueryError};
-    use crate::errors::{DbError, WriteType};
     use crate::statement::Consistency;
     use crate::test_utils::setup_tracing;
+    use crate::transport::errors::{BadQuery, QueryError};
+    use crate::transport::errors::{DbError, WriteType};
     use bytes::Bytes;
     use std::io::ErrorKind;
     use std::sync::Arc;

scylla/src/transport/session.rs

@@ -5,10 +5,10 @@ use crate::batch::batch_values;
 #[cfg(feature = "cloud")]
 use crate::cloud::CloudConfig;
 
-pub use crate::errors::TranslationError;
-use crate::errors::{BadQuery, NewSessionError, QueryError, UserRequestError};
 use crate::history;
 use crate::history::HistoryListener;
+pub use crate::transport::errors::TranslationError;
+use crate::transport::errors::{BadQuery, NewSessionError, QueryError, UserRequestError};
 use crate::utils::pretty::{CommaSeparatedDisplayer, CqlValueDisplayer};
 use arc_swap::ArcSwapOption;
 use async_trait::async_trait;

scylla/src/transport/session_builder.rs

@@ -7,7 +7,7 @@ use super::Compression;
 
 #[cfg(feature = "cloud")]
 use crate::cloud::{CloudConfig, CloudConfigError};
-use crate::errors::NewSessionError;
+use crate::transport::errors::NewSessionError;
 #[cfg(feature = "cloud")]
 use crate::ExecutionProfile;
 

scylla/src/transport/session_test.rs

@@ -1,6 +1,5 @@
 use crate as scylla;
 use crate::batch::{Batch, BatchStatement};
-use crate::errors::{BadKeyspaceName, BadQuery, DbError, QueryError};
 use crate::frame::response::result::Row;
 use crate::prepared_statement::PreparedStatement;
 use crate::query::Query;
@@ -10,6 +9,7 @@ use crate::statement::Consistency;
 use crate::test_utils::{scylla_supports_tablets, setup_tracing};
 use crate::tracing::TracingInfo;
 use crate::transport::cluster::Datacenter;
+use crate::transport::errors::{BadKeyspaceName, BadQuery, DbError, QueryError};
 use crate::transport::partitioner::{
     calculate_token_for_partition_key, Murmur3Partitioner, Partitioner, PartitionerName,
 };
@@ -2526,7 +2526,7 @@ async fn test_rate_limit_exceeded_exception() {
         }
     }
 
-    use crate::errors::OperationType;
+    use crate::transport::errors::OperationType;
 
     match maybe_err.expect("Rate limit error didn't occur") {
         QueryError::DbError(DbError::RateLimitReached { op_type, .. }, _) => {

scylla/src/transport/speculative_execution.rs

@@ -5,7 +5,7 @@ use futures::{
 use std::{future::Future, sync::Arc, time::Duration};
 use tracing::{trace_span, warn, Instrument};
 
-use crate::errors::QueryError;
+use crate::transport::errors::QueryError;
 
 use super::metrics::Metrics;
 

scylla/src/transport/topology.rs

@@ -1,9 +1,9 @@
-use crate::errors::{DbError, NewSessionError, QueryError};
 use crate::frame::response::event::Event;
 use crate::routing::Token;
 use crate::statement::query::Query;
 use crate::transport::connection::{Connection, ConnectionConfig};
 use crate::transport::connection_pool::{NodeConnectionPool, PoolConfig, PoolSize};
+use crate::transport::errors::{DbError, NewSessionError, QueryError};
 use crate::transport::host_filter::HostFilter;
 use crate::transport::node::resolve_contact_points;
 use crate::utils::parse::{ParseErrorCause, ParseResult, ParserState};

scylla/tests/integration/execution_profiles.rs

@@ -81,7 +81,7 @@ impl<const NODE: u8> LoadBalancingPolicy for BoundToPredefinedNodePolicy<NODE> {
         _query: &RoutingInfo,
         _latency: std::time::Duration,
         _node: NodeRef<'_>,
-        _error: &scylla::errors::QueryError,
+        _error: &scylla::transport::errors::QueryError,
     ) {
     }
 

scylla/tests/integration/new_session.rs

@@ -1,7 +1,7 @@
 use crate::utils::setup_tracing;
 
 use assert_matches::assert_matches;
-use scylla::errors::NewSessionError;
+use scylla::transport::errors::NewSessionError;
 use scylla::SessionBuilder;
 
 #[cfg(not(scylla_cloud_tests))]

scylla/tests/integration/tablets.rs

@@ -20,7 +20,7 @@ use scylla::ExecutionProfile;
 use scylla::QueryResult;
 use scylla::Session;
 
-use scylla::errors::QueryError;
+use scylla::transport::errors::QueryError;
 use scylla_proxy::{
     Condition, ProxyError, Reaction, ResponseFrame, ResponseOpcode, ResponseReaction, ResponseRule,
     ShardAwareness, TargetShard, WorkerError,