Add verify_preflight_check for script sequences (#6372)

* Add verify_preflight_check for script sequences

* Change error message

* rustfmt

---------

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

crates/forge/bin/cmd/script/broadcast.rs

@@ -342,6 +342,10 @@ impl ScriptArgs {
     ) -> Result<()> {
         trace!(target: "script", "broadcasting single chain deployment");
 
+        if self.verify {
+            deployment_sequence.verify_preflight_check(&script_config.config, &verify)?;
+        }
+
         let rpc = script_config.total_rpcs.into_iter().next().expect("exists; qed");
 
         deployment_sequence.add_libraries(libraries);

crates/forge/bin/cmd/script/cmd.rs

@@ -258,6 +258,10 @@ impl ScriptArgs {
             Err(err) => eyre::bail!(err),
         };
 
+        if self.verify {
+            deployment_sequence.verify_preflight_check(&script_config.config, &verify)?;
+        }
+
         receipts::wait_for_pending(provider, &mut deployment_sequence).await?;
 
         if self.resume {

crates/forge/bin/cmd/script/multi.rs

@@ -120,6 +120,12 @@ impl ScriptArgs {
             eyre::bail!("Libraries are currently not supported on multi deployment setups.");
         }
 
+        if self.verify {
+            for sequence in &deployments.deployments {
+                sequence.verify_preflight_check(config, &verify)?;
+            }
+        }
+
         if self.resume {
             trace!(target: "script", "resuming multi chain deployment");
 

crates/forge/bin/cmd/script/sequence.rs

@@ -249,6 +249,20 @@ impl ScriptSequence {
         Ok((broadcast, cache))
     }
 
+    /// Checks that there is an Etherscan key for the chain id of this sequence.
+    pub fn verify_preflight_check(&self, config: &Config, verify: &VerifyBundle) -> Result<()> {
+        if config.get_etherscan_api_key(Some(self.chain.into())).is_none() &&
+            verify.verifier.verifier == VerificationProviderType::Etherscan
+        {
+            eyre::bail!(
+                "Etherscan API key wasn't found for chain id {}. On-chain execution aborted",
+                self.chain
+            )
+        }
+
+        Ok(())
+    }
+
     /// Given the broadcast log, it matches transactions with receipts, and tries to verify any
     /// created contract on etherscan.
     pub async fn verify_contracts(