refactor(script): mv ScriptSequence to new crate (#9098)

* refac(`script`): extract script sequence and related types to new crate

* replace MultiChainSequence in script crate

* replace TransactionWithMetadata and AdditionalContract

* replace ScriptSequence

* replace all underlying ScriptSequence and related types

* doc nits

* add `ScriptTransactionBuilder`

* remove `TxWithMetadata`

* mv verify fns and use `ScriptSequence` directly

* clippy

Cargo.toml

@@ -20,6 +20,7 @@ members = [
     "crates/evm/traces/",
     "crates/fmt/",
     "crates/forge/",
+    "crates/script-sequence/",
     "crates/macros/",
     "crates/test-utils/",
 ]
@@ -147,6 +148,7 @@ forge-fmt = { path = "crates/fmt" }
 forge-verify = { path = "crates/verify" }
 forge-script = { path = "crates/script" }
 forge-sol-macro-gen = { path = "crates/sol-macro-gen" }
+forge-script-sequence = { path = "crates/script-sequence" }
 foundry-cheatcodes = { path = "crates/cheatcodes" }
 foundry-cheatcodes-spec = { path = "crates/cheatcodes/spec" }
 foundry-cli = { path = "crates/cli" }

crates/script-sequence/Cargo.toml

@@ -0,0 +1,29 @@
+[package]
+name = "forge-script-sequence"
+description = "Script sequence types"
+
+version.workspace = true
+edition.workspace = true
+rust-version.workspace = true
+authors.workspace = true
+license.workspace = true
+homepage.workspace = true
+repository.workspace = true
+
+[lints]
+workspace = true
+
+[dependencies]
+foundry-config.workspace = true
+foundry-common.workspace = true
+foundry-compilers = { workspace = true, features = ["full"] }
+
+serde.workspace = true
+eyre.workspace = true
+serde_json.workspace = true
+tracing.workspace = true
+
+revm-inspectors.workspace = true
+
+alloy-rpc-types.workspace = true
+alloy-primitives.workspace = true

crates/script-sequence/src/lib.rs

@@ -0,0 +1,7 @@
+//! Script Sequence and related types.
+
+pub mod sequence;
+pub mod transaction;
+
+pub use sequence::*;
+pub use transaction::*;

crates/script-sequence/src/sequence.rs

@@ -0,0 +1,248 @@
+use crate::transaction::TransactionWithMetadata;
+use alloy_primitives::{hex, map::HashMap, TxHash};
+use alloy_rpc_types::AnyTransactionReceipt;
+use eyre::{ContextCompat, Result, WrapErr};
+use foundry_common::{fs, shell, TransactionMaybeSigned, SELECTOR_LEN};
+use foundry_compilers::ArtifactId;
+use foundry_config::Config;
+use serde::{Deserialize, Serialize};
+use std::{
+    collections::VecDeque,
+    io::{BufWriter, Write},
+    path::PathBuf,
+    time::{Duration, SystemTime, UNIX_EPOCH},
+};
+
+pub const DRY_RUN_DIR: &str = "dry-run";
+
+#[derive(Clone, Serialize, Deserialize)]
+pub struct NestedValue {
+    pub internal_type: String,
+    pub value: String,
+}
+
+/// Helper that saves the transactions sequence and its state on which transactions have been
+/// broadcasted
+#[derive(Clone, Default, Serialize, Deserialize)]
+pub struct ScriptSequence {
+    pub transactions: VecDeque<TransactionWithMetadata>,
+    pub receipts: Vec<AnyTransactionReceipt>,
+    pub libraries: Vec<String>,
+    pub pending: Vec<TxHash>,
+    #[serde(skip)]
+    /// Contains paths to the sequence files
+    /// None if sequence should not be saved to disk (e.g. part of a multi-chain sequence)
+    pub paths: Option<(PathBuf, PathBuf)>,
+    pub returns: HashMap<String, NestedValue>,
+    pub timestamp: u64,
+    pub chain: u64,
+    pub commit: Option<String>,
+}
+
+/// Sensitive values from the transactions in a script sequence
+#[derive(Clone, Default, Serialize, Deserialize)]
+pub struct SensitiveTransactionMetadata {
+    pub rpc: String,
+}
+
+/// Sensitive info from the script sequence which is saved into the cache folder
+#[derive(Clone, Default, Serialize, Deserialize)]
+pub struct SensitiveScriptSequence {
+    pub transactions: VecDeque<SensitiveTransactionMetadata>,
+}
+
+impl From<ScriptSequence> for SensitiveScriptSequence {
+    fn from(sequence: ScriptSequence) -> Self {
+        Self {
+            transactions: sequence
+                .transactions
+                .iter()
+                .map(|tx| SensitiveTransactionMetadata { rpc: tx.rpc.clone() })
+                .collect(),
+        }
+    }
+}
+
+impl ScriptSequence {
+    /// Loads The sequence for the corresponding json file
+    pub fn load(
+        config: &Config,
+        sig: &str,
+        target: &ArtifactId,
+        chain_id: u64,
+        dry_run: bool,
+    ) -> Result<Self> {
+        let (path, sensitive_path) = Self::get_paths(config, sig, target, chain_id, dry_run)?;
+
+        let mut script_sequence: Self = fs::read_json_file(&path)
+            .wrap_err(format!("Deployment not found for chain `{chain_id}`."))?;
+
+        let sensitive_script_sequence: SensitiveScriptSequence = fs::read_json_file(
+            &sensitive_path,
+        )
+        .wrap_err(format!("Deployment's sensitive details not found for chain `{chain_id}`."))?;
+
+        script_sequence.fill_sensitive(&sensitive_script_sequence);
+
+        script_sequence.paths = Some((path, sensitive_path));
+
+        Ok(script_sequence)
+    }
+
+    /// Saves the transactions as file if it's a standalone deployment.
+    /// `save_ts` should be set to true for checkpoint updates, which might happen many times and
+    /// could result in us saving many identical files.
+    pub fn save(&mut self, silent: bool, save_ts: bool) -> Result<()> {
+        self.sort_receipts();
+
+        if self.transactions.is_empty() {
+            return Ok(())
+        }
+
+        let Some((path, sensitive_path)) = self.paths.clone() else { return Ok(()) };
+
+        self.timestamp = now().as_secs();
+        let ts_name = format!("run-{}.json", self.timestamp);
+
+        let sensitive_script_sequence: SensitiveScriptSequence = self.clone().into();
+
+        // broadcast folder writes
+        //../run-latest.json
+        let mut writer = BufWriter::new(fs::create_file(&path)?);
+        serde_json::to_writer_pretty(&mut writer, &self)?;
+        writer.flush()?;
+        if save_ts {
+            //../run-[timestamp].json
+            fs::copy(&path, path.with_file_name(&ts_name))?;
+        }
+
+        // cache folder writes
+        //../run-latest.json
+        let mut writer = BufWriter::new(fs::create_file(&sensitive_path)?);
+        serde_json::to_writer_pretty(&mut writer, &sensitive_script_sequence)?;
+        writer.flush()?;
+        if save_ts {
+            //../run-[timestamp].json
+            fs::copy(&sensitive_path, sensitive_path.with_file_name(&ts_name))?;
+        }
+
+        if !silent {
+            shell::println(format!("\nTransactions saved to: {}\n", path.display()))?;
+            shell::println(format!("Sensitive values saved to: {}\n", sensitive_path.display()))?;
+        }
+
+        Ok(())
+    }
+
+    pub fn add_receipt(&mut self, receipt: AnyTransactionReceipt) {
+        self.receipts.push(receipt);
+    }
+
+    /// Sorts all receipts with ascending transaction index
+    pub fn sort_receipts(&mut self) {
+        self.receipts.sort_by_key(|r| (r.block_number, r.transaction_index));
+    }
+
+    pub fn add_pending(&mut self, index: usize, tx_hash: TxHash) {
+        if !self.pending.contains(&tx_hash) {
+            self.transactions[index].hash = Some(tx_hash);
+            self.pending.push(tx_hash);
+        }
+    }
+
+    pub fn remove_pending(&mut self, tx_hash: TxHash) {
+        self.pending.retain(|element| element != &tx_hash);
+    }
+
+    /// Gets paths in the formats
+    /// `./broadcast/[contract_filename]/[chain_id]/[sig]-[timestamp].json` and
+    /// `./cache/[contract_filename]/[chain_id]/[sig]-[timestamp].json`.
+    pub fn get_paths(
+        config: &Config,
+        sig: &str,
+        target: &ArtifactId,
+        chain_id: u64,
+        dry_run: bool,
+    ) -> Result<(PathBuf, PathBuf)> {
+        let mut broadcast = config.broadcast.to_path_buf();
+        let mut cache = config.cache_path.to_path_buf();
+        let mut common = PathBuf::new();
+
+        let target_fname = target.source.file_name().wrap_err("No filename.")?;
+        common.push(target_fname);
+        common.push(chain_id.to_string());
+        if dry_run {
+            common.push(DRY_RUN_DIR);
+        }
+
+        broadcast.push(common.clone());
+        cache.push(common);
+
+        fs::create_dir_all(&broadcast)?;
+        fs::create_dir_all(&cache)?;
+
+        // TODO: ideally we want the name of the function here if sig is calldata
+        let filename = sig_to_file_name(sig);
+
+        broadcast.push(format!("{filename}-latest.json"));
+        cache.push(format!("{filename}-latest.json"));
+
+        Ok((broadcast, cache))
+    }
+
+    /// Returns the first RPC URL of this sequence.
+    pub fn rpc_url(&self) -> &str {
+        self.transactions.front().expect("empty sequence").rpc.as_str()
+    }
+
+    /// Returns the list of the transactions without the metadata.
+    pub fn transactions(&self) -> impl Iterator<Item = &TransactionMaybeSigned> {
+        self.transactions.iter().map(|tx| tx.tx())
+    }
+
+    pub fn fill_sensitive(&mut self, sensitive: &SensitiveScriptSequence) {
+        self.transactions
+            .iter_mut()
+            .enumerate()
+            .for_each(|(i, tx)| tx.rpc.clone_from(&sensitive.transactions[i].rpc));
+    }
+}
+
+/// Converts the `sig` argument into the corresponding file path.
+///
+/// This accepts either the signature of the function or the raw calldata.
+pub fn sig_to_file_name(sig: &str) -> String {
+    if let Some((name, _)) = sig.split_once('(') {
+        // strip until call argument parenthesis
+        return name.to_string()
+    }
+    // assume calldata if `sig` is hex
+    if let Ok(calldata) = hex::decode(sig) {
+        // in which case we return the function signature
+        return hex::encode(&calldata[..SELECTOR_LEN])
+    }
+
+    // return sig as is
+    sig.to_string()
+}
+
+pub fn now() -> Duration {
+    SystemTime::now().duration_since(UNIX_EPOCH).expect("time went backwards")
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn can_convert_sig() {
+        assert_eq!(sig_to_file_name("run()").as_str(), "run");
+        assert_eq!(
+            sig_to_file_name(
+                "522bb704000000000000000000000000f39fd6e51aad88f6f4ce6ab8827279cfFFb92266"
+            )
+            .as_str(),
+            "522bb704"
+        );
+    }
+}