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chore: error instead of panic on create fork failure #6852

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Jan 19, 2024
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chore: error instead of panic on create fork failure #6852

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192 changes: 93 additions & 99 deletions crates/forge/bin/cmd/script/executor.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,7 @@ use forge::{
backend::Backend,
executors::ExecutorBuilder,
inspectors::{cheatcodes::BroadcastableTransactions, CheatsConfig},
traces::{CallTraceDecoder, Traces},
traces::CallTraceDecoder,
};
use foundry_cli::utils::{ensure_clean_constructor, needs_setup};
use foundry_common::{
Expand All @@ -24,9 +24,6 @@ use futures::future::join_all;
use parking_lot::RwLock;
use std::{collections::VecDeque, sync::Arc};

/// Helper alias type for the processed result of a runner onchain simulation.
type RunnerResult = (Option<TransactionWithMetadata>, Traces);

impl ScriptArgs {
/// Locally deploys and executes the contract method that will collect all broadcastable
/// transactions.
Expand All @@ -51,7 +48,7 @@ impl ScriptArgs {

ensure_clean_constructor(&abi)?;

let mut runner = self.prepare_runner(script_config, sender, SimulationStage::Local).await;
let mut runner = self.prepare_runner(script_config, sender, SimulationStage::Local).await?;
let (address, mut result) = runner.setup(
predeploy_libraries,
bytecode,
Expand Down Expand Up @@ -105,7 +102,7 @@ impl ScriptArgs {

let runners = Arc::new(
self.build_runners(script_config)
.await
.await?
.into_iter()
.map(|(rpc, runner)| (rpc, Arc::new(RwLock::new(runner))))
.collect::<HashMap<_, _>>(),
Expand Down Expand Up @@ -139,87 +136,81 @@ impl ScriptArgs {
let mut final_txs = VecDeque::new();

// Executes all transactions from the different forks concurrently.
let futs =
transactions
.into_iter()
.map(|transaction| async {
let mut runner = runners
.get(transaction.rpc.as_ref().expect("to have been filled already."))
.expect("to have been built.")
.write();

if let TypedTransaction::Legacy(mut tx) = transaction.transaction {
let result = runner
.simulate(
tx.from.expect(
"Transaction doesn't have a `from` address at execution time",
).to_alloy(),
tx.to.clone(),
tx.data.clone().map(|b| b.to_alloy()),
tx.value.map(|v| v.to_alloy()),
)
.wrap_err("Internal EVM error during simulation")?;

if !result.success || result.traces.is_empty() {
return Ok((None, result.traces));
}

let created_contracts = result
.traces
.iter()
.flat_map(|(_, traces)| {
traces.nodes().iter().filter_map(|node| {
if node.trace.kind.is_any_create() {
return Some(AdditionalContract {
opcode: node.trace.kind,
address: node.trace.address,
init_code: node.trace.data.clone(),
});
}
None
})
})
.collect();

// Simulate mining the transaction if the user passes `--slow`.
if self.slow {
runner.executor.env.block.number += U256::from(1);
}

let is_fixed_gas_limit = tx.gas.is_some();
// If tx.gas is already set that means it was specified in script
if !is_fixed_gas_limit {
// We inflate the gas used by the user specified percentage
tx.gas = Some(
U256::from(result.gas_used * self.gas_estimate_multiplier / 100)
.to_ethers(),
);
} else {
println!("Gas limit was set in script to {:}", tx.gas.unwrap());
}

let tx = TransactionWithMetadata::new(
tx.into(),
transaction.rpc,
&result,
&address_to_abi,
decoder,
created_contracts,
is_fixed_gas_limit,
)?;

Ok((Some(tx), result.traces))
} else {
unreachable!()
let futs = transactions
.into_iter()
.map(|transaction| async {
let rpc = transaction.rpc.as_ref().expect("missing broadcastable tx rpc url");
let mut runner = runners.get(rpc).expect("invalid rpc url").write();

let TypedTransaction::Legacy(mut tx) = transaction.transaction else {
unreachable!()
};
let result = runner
.simulate(
tx.from
.expect("transaction doesn't have a `from` address at execution time")
.to_alloy(),
tx.to.clone(),
tx.data.clone().map(|b| b.to_alloy()),
tx.value.map(|v| v.to_alloy()),
)
.wrap_err("Internal EVM error during simulation")?;

if !result.success || result.traces.is_empty() {
return Ok((None, result.traces));
}

let created_contracts = result
.traces
.iter()
.flat_map(|(_, traces)| {
traces.nodes().iter().filter_map(|node| {
if node.trace.kind.is_any_create() {
return Some(AdditionalContract {
opcode: node.trace.kind,
address: node.trace.address,
init_code: node.trace.data.clone(),
});
}
None
})
})
.collect();

// Simulate mining the transaction if the user passes `--slow`.
if self.slow {
runner.executor.env.block.number += U256::from(1);
}

let is_fixed_gas_limit = tx.gas.is_some();
match tx.gas {
// If tx.gas is already set that means it was specified in script
Some(gas) => {
println!("Gas limit was set in script to {gas}");
}
})
.collect::<Vec<_>>();
// We inflate the gas used by the user specified percentage
None => {
let gas = U256::from(result.gas_used * self.gas_estimate_multiplier / 100);
tx.gas = Some(gas.to_ethers());
}
}

let tx = TransactionWithMetadata::new(
tx.into(),
transaction.rpc,
&result,
&address_to_abi,
decoder,
created_contracts,
is_fixed_gas_limit,
)?;

eyre::Ok((Some(tx), result.traces))
})
.collect::<Vec<_>>();

let mut abort = false;
for res in join_all(futs).await {
// type hint
let res: Result<RunnerResult> = res;

let (tx, traces) = res?;

// Transaction will be `None`, if execution didn't pass.
Expand Down Expand Up @@ -251,7 +242,10 @@ impl ScriptArgs {
}

/// Build the multiple runners from different forks.
async fn build_runners(&self, script_config: &ScriptConfig) -> HashMap<RpcUrl, ScriptRunner> {
async fn build_runners(
&self,
script_config: &ScriptConfig,
) -> Result<HashMap<RpcUrl, ScriptRunner>> {
let sender = script_config.evm_opts.sender;

if !shell::verbosity().is_silent() {
Expand All @@ -266,11 +260,10 @@ impl ScriptArgs {
.map(|rpc| async {
let mut script_config = script_config.clone();
script_config.evm_opts.fork_url = Some(rpc.clone());

(
rpc.clone(),
self.prepare_runner(&mut script_config, sender, SimulationStage::OnChain).await,
)
let runner = self
.prepare_runner(&mut script_config, sender, SimulationStage::OnChain)
.await?;
Ok((rpc.clone(), runner))
})
.collect::<Vec<_>>();

Expand All @@ -283,22 +276,19 @@ impl ScriptArgs {
script_config: &mut ScriptConfig,
sender: Address,
stage: SimulationStage,
) -> ScriptRunner {
) -> Result<ScriptRunner> {
trace!("preparing script runner");
let env =
script_config.evm_opts.evm_env().await.expect("Could not instantiate fork environment");
let env = script_config.evm_opts.evm_env().await?;

// The db backend that serves all the data.
let db = match &script_config.evm_opts.fork_url {
Some(url) => match script_config.backends.get(url) {
Some(db) => db.clone(),
None => {
let backend = Backend::spawn(
script_config.evm_opts.get_fork(&script_config.config, env.clone()),
)
.await;
script_config.backends.insert(url.clone(), backend);
script_config.backends.get(url).unwrap().clone()
let fork = script_config.evm_opts.get_fork(&script_config.config, env.clone());
let backend = Backend::spawn(fork).await;
script_config.backends.insert(url.clone(), backend.clone());
backend
}
},
None => {
Expand All @@ -324,6 +314,10 @@ impl ScriptArgs {
});
}

ScriptRunner::new(builder.build(env, db), script_config.evm_opts.initial_balance, sender)
Ok(ScriptRunner::new(
builder.build(env, db),
script_config.evm_opts.initial_balance,
sender,
))
}
}
9 changes: 4 additions & 5 deletions crates/forge/bin/cmd/verify/etherscan/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -105,9 +105,9 @@ impl VerificationProvider for EtherscanVerificationProvider {

warn!("Failed verify submission: {:?}", resp);
eprintln!(
"Encountered an error verifying this contract:\nResponse: `{}`\nDetails: `{}`",
resp.message, resp.result
);
"Encountered an error verifying this contract:\nResponse: `{}`\nDetails: `{}`",
resp.message, resp.result
);
std::process::exit(1);
}

Expand All @@ -117,8 +117,7 @@ impl VerificationProvider for EtherscanVerificationProvider {

if let Some(resp) = resp {
println!(
"Submitted contract for verification:\n\tResponse: `{}`\n\tGUID: `{}`\n\tURL:
{}",
"Submitted contract for verification:\n\tResponse: `{}`\n\tGUID: `{}`\n\tURL: {}",
resp.message,
resp.result,
etherscan.address_url(args.address)
Expand Down