feat: upgrade to comet bft 0.38

Cargo.toml

@@ -183,7 +183,7 @@ paste = "1"
 pin-project = "1.1.2"
 prometheus = { version = "0.13", features = ["process"] }
 prometheus_exporter = "0.8"
-prost = { version = "0.11" }
+prost = { version = "0.13" }
 quickcheck = "1"
 quickcheck_async = "0.1"
 quickcheck_macros = "1"
@@ -294,17 +294,17 @@ netwatch = { path = "patches/netwatch" }
 
 frc42_dispatch = { path = "./ext/frc42_dispatch" }
 
-# Using the same tendermint-rs dependency as tower-abci. From both we are interested in v037 modules.
-tower-abci = { version = "0.7" }
+# Using the same tendermint-rs dependency as tower-abci.
+tower-abci = { version = "0.16" }
 tower = { version = "0.4" }
-tendermint = { version = "0.31", features = ["secp256k1"] }
-tendermint-config = "0.33.0"
-tendermint-rpc = { version = "0.31", features = [
+tendermint = { version = "0.38.1", features = ["secp256k1"] }
+tendermint-config = "0.38.1"
+tendermint-rpc = { version = "0.38.1", features = [
   "secp256k1",
   "http-client",
   "websocket-client",
 ] }
-tendermint-proto = { version = "0.31" }
+tendermint-proto = { version = "0.38.1" }
 
 rust-f3 = { git = "https://github.com/ChainSafe/rust-f3.git", branch = "main" }
 filecoin-proofs = { git = "https://github.com/consensus-shipyard/ipc-filecoin-proofs.git", branch = "main" }

fendermint/abci/Cargo.toml

@@ -8,6 +8,7 @@ license.workspace = true
 
 [dependencies]
 async-trait = { workspace = true }
+bytes = { workspace = true }
 futures = { workspace = true }
 tower = "0.4"
 tracing = { workspace = true }

fendermint/abci/examples/kvstore.rs

@@ -10,7 +10,8 @@ use fendermint_abci::{
 use structopt::StructOpt;
 use tendermint::abci::{request, response, Event, EventAttributeIndexExt};
 use tower::ServiceBuilder;
-use tower_abci::{split, v037::Server};
+use tower_abci::v038::split;
+use tower_abci::v038::Server;
 use tracing::{info, Level};
 
 // For the sake of example, sho the relationship between buffering, concurrency and block size.
@@ -95,33 +96,56 @@ impl Application for KVStore {
         }
     }
 
-    async fn deliver_tx(&self, request: request::DeliverTx) -> Result<response::DeliverTx> {
-        let tx = String::from_utf8(request.tx.to_vec()).unwrap();
-        let (key, value) = match tx.split('=').collect::<Vec<_>>() {
-            k if k.len() == 1 => (k[0], k[0]),
-            kv => (kv[0], kv[1]),
-        };
-
-        atomically(|| {
-            self.store.update(|mut store| {
-                store.insert(key.into(), value.into());
-                store
+    async fn finalize_block(
+        &self,
+        request: request::FinalizeBlock,
+    ) -> Result<response::FinalizeBlock> {
+        let mut tx_results = Vec::with_capacity(request.txs.len());
+
+        for tx in request.txs {
+            let tx = String::from_utf8(tx.to_vec()).unwrap();
+            let (key, value) = match tx.split('=').collect::<Vec<_>>() {
+                k if k.len() == 1 => (k[0], k[0]),
+                kv => (kv[0], kv[1]),
+            };
+
+            atomically(|| {
+                self.store.update(|mut store| {
+                    store.insert(key.into(), value.into());
+                    store
+                })
             })
-        })
-        .await;
+            .await;
 
-        info!(?key, ?value, "update");
+            info!(?key, ?value, "update");
 
-        Ok(response::DeliverTx {
-            events: vec![Event::new(
+            let events = vec![Event::new(
                 "app",
                 vec![
                     ("key", key).index(),
                     ("index_key", "index is working").index(),
                     ("noindex_key", "index is working").no_index(),
                 ],
-            )],
-            ..Default::default()
+            )];
+
+            tx_results.push(tendermint::abci::types::ExecTxResult {
+                code: tendermint::abci::Code::Ok,
+                data: Default::default(),
+                log: Default::default(),
+                info: Default::default(),
+                gas_wanted: 0,
+                gas_used: 0,
+                events,
+                codespace: Default::default(),
+            });
+        }
+
+        Ok(response::FinalizeBlock {
+            events: Vec::new(),
+            tx_results,
+            validator_updates: Vec::new(),
+            consensus_param_updates: None,
+            app_hash: Default::default(),
         })
     }
 
@@ -204,7 +228,7 @@ async fn main() {
 
     // Run the ABCI server.
     server
-        .listen(format!("{}:{}", opt.host, opt.port))
+        .listen_tcp(format!("{}:{}", opt.host, opt.port))
         .await
         .unwrap();
 }

fendermint/abci/src/application.rs

@@ -7,7 +7,7 @@ use std::{
     pin::Pin,
     task::{Context, Poll},
 };
-use tendermint::abci::{request, response, Request, Response};
+use tendermint::v0_38::abci::{request, response, Request, Response};
 use tower::Service;
 use tower_abci::BoxError;
 
@@ -81,19 +81,33 @@ pub trait Application {
         Ok(response::ProcessProposal::Accept)
     }
 
-    /// Signals the beginning of a new block, prior to any `DeliverTx` calls.
-    async fn begin_block(&self, request: request::BeginBlock) -> AbciResult<response::BeginBlock> {
-        Ok(Default::default())
+    /// Opportunity for the application to add arbitrary extension data to precommit votes.
+    async fn extend_vote(&self, _request: request::ExtendVote) -> AbciResult<response::ExtendVote> {
+        Ok(response::ExtendVote {
+            vote_extension: bytes::Bytes::new(),
+        })
     }
 
-    /// Apply a transaction to the application's state.
-    async fn deliver_tx(&self, request: request::DeliverTx) -> AbciResult<response::DeliverTx> {
-        Ok(Default::default())
+    /// Verify vote extensions from peer validators.
+    async fn verify_vote_extension(
+        &self,
+        _request: request::VerifyVoteExtension,
+    ) -> AbciResult<response::VerifyVoteExtension> {
+        Ok(response::VerifyVoteExtension::Accept)
     }
 
-    /// Signals the end of a block.
-    async fn end_block(&self, request: request::EndBlock) -> AbciResult<response::EndBlock> {
-        Ok(Default::default())
+    /// Execute and finalize an entire block.
+    async fn finalize_block(
+        &self,
+        _request: request::FinalizeBlock,
+    ) -> AbciResult<response::FinalizeBlock> {
+        Ok(response::FinalizeBlock {
+            events: Vec::new(),
+            tx_results: Vec::new(),
+            validator_updates: Vec::new(),
+            consensus_param_updates: None,
+            app_hash: tendermint::AppHash::default(),
+        })
     }
 
     /// Commit the current state at the current height.
@@ -174,11 +188,15 @@ where
                 Request::ProcessProposal(r) => {
                     Response::ProcessProposal(log_error(app.process_proposal(r).await)?)
                 }
-                Request::BeginBlock(r) => {
-                    Response::BeginBlock(log_error(app.begin_block(r).await)?)
+                Request::ExtendVote(r) => {
+                    Response::ExtendVote(log_error(app.extend_vote(r).await)?)
+                }
+                Request::VerifyVoteExtension(r) => {
+                    Response::VerifyVoteExtension(log_error(app.verify_vote_extension(r).await)?)
+                }
+                Request::FinalizeBlock(r) => {
+                    Response::FinalizeBlock(log_error(app.finalize_block(r).await)?)
                 }
-                Request::DeliverTx(r) => Response::DeliverTx(log_error(app.deliver_tx(r).await)?),
-                Request::EndBlock(r) => Response::EndBlock(log_error(app.end_block(r).await)?),
                 Request::Commit => Response::Commit(log_error(app.commit().await)?),
                 Request::ListSnapshots => {
                     Response::ListSnapshots(log_error(app.list_snapshots().await)?)
@@ -192,7 +210,8 @@ where
                 Request::ApplySnapshotChunk(r) => {
                     Response::ApplySnapshotChunk(log_error(app.apply_snapshot_chunk(r).await)?)
                 }
-                Request::Flush => panic!("Flush should be handled by the Server!"),
+                // Some clients still send explicit Flush requests; never panic on protocol input.
+                Request::Flush => Response::Flush,
             };
             Ok(res)
         };

fendermint/actors-custom-car/build.rs

@@ -152,9 +152,10 @@ fn create_metadata_command(path: impl Into<PathBuf>) -> MetadataCommand {
     metadata_command
 }
 
-/// Find the `Cargo.lock` relative to the `OUT_DIR` environment variable.
+/// Find the `Cargo.lock` by walking parent directories from known anchors.
 ///
-/// If the `Cargo.lock` cannot be found, we emit a warning and return `None`.
+/// We first try `OUT_DIR`, then fall back to `CARGO_MANIFEST_DIR`.
+/// The fallback is needed when `CARGO_TARGET_DIR` points outside the workspace.
 fn find_cargo_lock(out_dir: &Path) -> Option<PathBuf> {
     fn find_impl(mut path: PathBuf) -> Option<PathBuf> {
         loop {
@@ -172,6 +173,12 @@ fn find_cargo_lock(out_dir: &Path) -> Option<PathBuf> {
         return Some(path);
     }
 
+    if let Some(manifest_dir) = std::env::var_os("CARGO_MANIFEST_DIR") {
+        if let Some(path) = find_impl(PathBuf::from(manifest_dir)) {
+            return Some(path);
+        }
+    }
+
     None
 }