feat: add providerfactory builder to OpNode (#14322)

crates/ethereum/node/src/node.rs

@@ -87,10 +87,10 @@ impl EthereumNode {
     /// use reth_db::open_db_read_only;
     /// use reth_node_ethereum::EthereumNode;
     /// use reth_provider::providers::StaticFileProvider;
-    /// use std::{path::Path, sync::Arc};
+    /// use std::sync::Arc;
     ///
     /// let factory = EthereumNode::provider_factory_builder()
-    ///     .db(Arc::new(open_db_read_only(Path::new("db"), Default::default()).unwrap()))
+    ///     .db(Arc::new(open_db_read_only("db", Default::default()).unwrap()))
     ///     .chainspec(ChainSpecBuilder::mainnet().build().into())
     ///     .static_file(StaticFileProvider::read_only("db/static_files", false).unwrap())
     ///     .build_provider_factory();

crates/optimism/node/src/node.rs

@@ -38,7 +38,7 @@ use reth_optimism_rpc::{
     witness::{DebugExecutionWitnessApiServer, OpDebugWitnessApi},
     OpEthApi, OpEthApiError, SequencerClient,
 };
-use reth_provider::{CanonStateSubscriptions, EthStorage};
+use reth_provider::{providers::ProviderFactoryBuilder, CanonStateSubscriptions, EthStorage};
 use reth_rpc_eth_types::error::FromEvmError;
 use reth_rpc_server_types::RethRpcModule;
 use reth_tracing::tracing::{debug, info};
@@ -115,6 +115,40 @@ impl OpNode {
             .executor(OpExecutorBuilder::default())
             .consensus(OpConsensusBuilder::default())
     }
+
+    /// Instantiates the [`ProviderFactoryBuilder`] for an opstack node.
+    ///
+    /// # Open a Providerfactory in read-only mode from a datadir
+    ///
+    /// See also: [`ProviderFactoryBuilder`] and
+    /// [`ReadOnlyConfig`](reth_provider::providers::ReadOnlyConfig).
+    ///
+    /// ```no_run
+    /// use reth_optimism_chainspec::BASE_MAINNET;
+    /// use reth_optimism_node::OpNode;
+    ///
+    /// let factory =
+    ///     OpNode::provider_factory_builder().open_read_only(BASE_MAINNET.clone(), "datadir").unwrap();
+    /// ```
+    ///
+    /// # Open a Providerfactory manually with with all required components
+    ///
+    /// ```no_run
+    /// use reth_db::open_db_read_only;
+    /// use reth_optimism_chainspec::OpChainSpecBuilder;
+    /// use reth_optimism_node::OpNode;
+    /// use reth_provider::providers::StaticFileProvider;
+    /// use std::sync::Arc;
+    ///
+    /// let factory = OpNode::provider_factory_builder()
+    ///     .db(Arc::new(open_db_read_only("db", Default::default()).unwrap()))
+    ///     .chainspec(OpChainSpecBuilder::base_mainnet().build().into())
+    ///     .static_file(StaticFileProvider::read_only("db/static_files", false).unwrap())
+    ///     .build_provider_factory();
+    /// ```
+    pub fn provider_factory_builder() -> ProviderFactoryBuilder<Self> {
+        ProviderFactoryBuilder::default()
+    }
 }
 
 impl<N> Node<N> for OpNode