feat(l1): generate execution witnesses during payload execution

cmd/ethrex/cli.rs

@@ -288,6 +288,14 @@ pub struct Options {
         value_parser = clap::value_parser!(u32).range(1..)
     )]
     pub max_blobs_per_block: Option<u32>,
+    #[arg(
+        long = "generate-witness",
+        action = ArgAction::SetTrue,
+        default_value = "false",
+        help = "Once synced, generates execution witnesses upon receiving newPayload messages and stores them in local storage",
+        help_heading = "Node options"
+    )]
+    pub generate_witness: bool,
 }
 
 impl Options {
@@ -364,6 +372,7 @@ impl Default for Options {
             extra_data: get_minimal_client_version(),
             gas_limit: DEFAULT_BUILDER_GAS_CEIL,
             max_blobs_per_block: None,
+            generate_witness: false,
         }
     }
 }

cmd/ethrex/initializers.rs

@@ -476,6 +476,7 @@ pub async fn init_l1(
             perf_logs_enabled: true,
             r#type: BlockchainType::L1,
             max_blobs_per_block: opts.max_blobs_per_block,
+            generate_witness: opts.generate_witness,
         },
     );
 

cmd/ethrex/l2/initializers.rs

@@ -215,6 +215,7 @@ pub async fn init_l2(
         r#type: BlockchainType::L2(l2_config),
         perf_logs_enabled: true,
         max_blobs_per_block: None, // L2 doesn't support blob transactions
+        generate_witness: opts.node_opts.generate_witness,
     };
 
     let blockchain = init_blockchain(store.clone(), blockchain_opts.clone());