fix(revme): revme error output and remove double summary

bins/revme/src/cmd/statetest/runner.rs

@@ -358,7 +358,6 @@ pub fn execute_test_suite(
                         .reset_handler_with_external_context(TracerEip3155::new(
                             Box::new(stderr()),
                             false,
-                            true,
                         ))
                         .append_handler_register(inspector_handle_register)
                         .build();
@@ -422,7 +421,7 @@ pub fn execute_test_suite(
                 let mut evm = Evm::builder()
                     .with_spec_id(spec_id)
                     .with_db(state)
-                    .with_external_context(TracerEip3155::new(Box::new(stdout()), false, false))
+                    .with_external_context(TracerEip3155::new(Box::new(stdout()), false))
                     .append_handler_register(inspector_handle_register)
                     .build();
                 let _ = evm.transact_commit();

bins/revme/src/main.rs

@@ -1,7 +1,9 @@
-use revme::cmd::{Error, MainCmd};
+use revme::cmd::MainCmd;
 use structopt::StructOpt;
 
-pub fn main() -> Result<(), Error> {
+pub fn main() {
     let cmd = MainCmd::from_args();
-    cmd.run()
+    if let Err(e) = cmd.run() {
+        println!("{}", e)
+    }
 }

crates/revm/src/inspector/eip3155.rs

@@ -12,15 +12,14 @@ pub struct TracerEip3155 {
     output: Box<dyn Write>,
     gas_inspector: GasInspector,
 
-    #[allow(dead_code)]
-    trace_mem: bool,
-    #[allow(dead_code)]
-    trace_return_data: bool,
+    /// Print summary of the execution.
+    print_summary: bool,
 
     stack: Vec<U256>,
     pc: usize,
     opcode: u8,
     gas: u64,
+    refunded: i64,
     mem_size: usize,
     skip: bool,
 }
@@ -99,16 +98,16 @@ impl TracerEip3155 {
 }
 
 impl TracerEip3155 {
-    pub fn new(output: Box<dyn Write>, trace_mem: bool, trace_return_data: bool) -> Self {
+    pub fn new(output: Box<dyn Write>, print_summary: bool) -> Self {
         Self {
             output,
             gas_inspector: GasInspector::default(),
-            trace_mem,
-            trace_return_data,
+            print_summary,
             stack: Default::default(),
             pc: 0,
             opcode: 0,
             gas: 0,
+            refunded: 0,
             mem_size: 0,
             skip: false,
         }
@@ -133,6 +132,7 @@ impl<DB: Database> Inspector<DB> for TracerEip3155 {
         self.opcode = interp.current_opcode();
         self.mem_size = interp.shared_memory.len();
         self.gas = interp.gas.remaining();
+        self.refunded = interp.gas.refunded();
     }
 
     fn step_end(&mut self, interp: &mut Interpreter, context: &mut EvmContext<DB>) {
@@ -150,7 +150,7 @@ impl<DB: Database> Inspector<DB> for TracerEip3155 {
             stack: self.stack.iter().map(hex_number_u256).collect(),
             depth: context.journaled_state.depth(),
             return_data: "0x".to_string(),
-            refund: "0x0".to_string(),
+            refund: hex_number(self.refunded as u64),
             mem_size: self.mem_size.to_string(),
 
             op_name: opcode::OPCODE_JUMPMAP[self.opcode as usize],
@@ -173,7 +173,7 @@ impl<DB: Database> Inspector<DB> for TracerEip3155 {
         outcome: CallOutcome,
     ) -> CallOutcome {
         let outcome = self.gas_inspector.call_end(context, inputs, outcome);
-        if context.journaled_state.depth() == 0 {
+        if self.print_summary && context.journaled_state.depth() == 0 {
             let value = Summary {
                 state_root: B256::ZERO.to_string(),
                 output: outcome.result.output.to_string(),

examples/db_by_ref.rs

@@ -72,7 +72,7 @@ fn run_transaction_and_commit(db: &mut CacheDB<EmptyDB>) -> anyhow::Result<()> {
 fn main() -> anyhow::Result<()> {
     let mut cache_db = CacheDB::new(EmptyDB::default());
 
-    let mut tracer = TracerEip3155::new(Box::new(std::io::stdout()), true, true);
+    let mut tracer = TracerEip3155::new(Box::new(std::io::stdout()), true);
 
     run_transaction_and_commit_with_ext(&mut cache_db, &mut tracer, inspector_handle_register)?;
     run_transaction_and_commit(&mut cache_db)?;

examples/generate_block_traces.rs

@@ -76,7 +76,7 @@ async fn main() -> anyhow::Result<()> {
     let mut state = StateBuilder::new_with_database(cache_db).build();
     let mut evm = Evm::builder()
         .with_db(&mut state)
-        .with_external_context(TracerEip3155::new(Box::new(std::io::stdout()), true, true))
+        .with_external_context(TracerEip3155::new(Box::new(std::io::stdout()), true))
         .modify_block_env(|b| {
             if let Some(number) = block.number {
                 let nn = number.0[0];