feat: display warning for op-mainnet launch without pre-Bedrock state (#11765)

Co-authored-by: Matthias Seitz <matthias.seitz@outlook.de>

crates/node/builder/src/launch/common.rs

@@ -40,9 +40,9 @@ use reth_node_metrics::{
 use reth_primitives::Head;
 use reth_provider::{
     providers::{BlockchainProvider, BlockchainProvider2, ProviderNodeTypes, StaticFileProvider},
-    BlockHashReader, CanonStateNotificationSender, ChainSpecProvider, ProviderFactory,
-    ProviderResult, StageCheckpointReader, StateProviderFactory, StaticFileProviderFactory,
-    TreeViewer,
+    BlockHashReader, BlockNumReader, CanonStateNotificationSender, ChainSpecProvider,
+    ProviderError, ProviderFactory, ProviderResult, StageCheckpointReader, StateProviderFactory,
+    StaticFileProviderFactory, TreeViewer,
 };
 use reth_prune::{PruneModes, PrunerBuilder};
 use reth_rpc_api::clients::EthApiClient;
@@ -814,6 +814,23 @@ where
         self.node_config().debug.terminate || self.node_config().debug.max_block.is_some()
     }
 
+    /// Ensures that the database matches chain-specific requirements.
+    ///
+    /// This checks for OP-Mainnet and ensures we have all the necessary data to progress (past
+    /// bedrock height)
+    fn ensure_chain_specific_db_checks(&self) -> ProviderResult<()> {
+        if self.chain_id() == Chain::optimism_mainnet() {
+            let latest = self.blockchain_db().last_block_number()?;
+            // bedrock height
+            if latest < 105235063 {
+                error!("Op-mainnet has been launched without importing the pre-Bedrock state. The chain can't progress without this. See also https://reth.rs/run/sync-op-mainnet.html?minimal-bootstrap-recommended");
+                return Err(ProviderError::BestBlockNotFound)
+            }
+        }
+
+        Ok(())
+    }
+
     /// Check if the pipeline is consistent (all stages have the checkpoint block numbers no less
     /// than the checkpoint of the first stage).
     ///
@@ -857,6 +874,8 @@ where
             }
         }
 
+        self.ensure_chain_specific_db_checks()?;
+
         Ok(None)
     }