chain, graph: Move PollingBlockStream to ethereum crate

It's the only chain impl that actually uses it

Author: lutter

chain/ethereum/src/chain.rs

@@ -25,7 +25,6 @@ use graph::{
             FirehoseMapper as FirehoseMapperTrait, TriggersAdapter as TriggersAdapterTrait,
         },
         firehose_block_stream::FirehoseBlockStream,
-        polling_block_stream::PollingBlockStream,
         Block, BlockPtr, Blockchain, ChainHeadUpdateListener, IngestorError,
         RuntimeAdapter as RuntimeAdapterTrait, TriggerFilter as _,
     },
@@ -49,6 +48,7 @@ use crate::data_source::DataSourceTemplate;
 use crate::data_source::UnresolvedDataSourceTemplate;
 use crate::ingestor::PollingBlockIngestor;
 use crate::network::EthereumNetworkAdapters;
+use crate::polling_block_stream::PollingBlockStream;
 use crate::runtime::runtime_adapter::eth_call_gas;
 use crate::{
     adapter::EthereumAdapter as _,

chain/ethereum/src/lib.rs

@@ -6,6 +6,7 @@ mod data_source;
 mod env;
 mod ethereum_adapter;
 mod ingestor;
+mod polling_block_stream;
 pub mod runtime;
 mod transport;
 

graph/src/blockchain/polling_block_stream.rs renamed to chain/ethereum/src/polling_block_stream.rs

@@ -1,21 +1,23 @@
-use anyhow::Error;
-use futures03::{stream::Stream, Future, FutureExt};
+use anyhow::{anyhow, Error};
+use graph::tokio;
 use std::cmp;
 use std::collections::VecDeque;
 use std::pin::Pin;
 use std::sync::Arc;
 use std::task::{Context, Poll};
 use std::time::Duration;
 
-use super::block_stream::{
+use graph::blockchain::block_stream::{
     BlockStream, BlockStreamError, BlockStreamEvent, BlockWithTriggers, ChainHeadUpdateStream,
     FirehoseCursor, TriggersAdapterWrapper, BUFFERED_BLOCK_STREAM_SIZE,
 };
-use super::{Block, BlockPtr, Blockchain, TriggerFilterWrapper};
+use graph::blockchain::{Block, BlockPtr, Blockchain, TriggerFilterWrapper};
+use graph::futures03::{stream::Stream, Future, FutureExt};
+use graph::prelude::{ChainStore, CheapClone, DeploymentHash, NodeId, BLOCK_NUMBER_MAX};
+use graph::slog::{debug, info, trace, warn, Logger};
 
-use crate::components::store::BlockNumber;
-use crate::data::subgraph::UnifiedMappingApiVersion;
-use crate::prelude::*;
+use graph::components::store::BlockNumber;
+use graph::data::subgraph::UnifiedMappingApiVersion;
 
 // A high number here forces a slow start.
 const STARTING_PREVIOUS_TRIGGERS_PER_BLOCK: f64 = 1_000_000.0;

graph/src/blockchain/mod.rs

@@ -10,7 +10,6 @@ pub mod firehose_block_ingestor;
 pub mod firehose_block_stream;
 pub mod mock;
 mod noop_runtime_adapter;
-pub mod polling_block_stream;
 pub mod substreams_block_stream;
 mod types;