rpc: use protox to build proto files

Use protox to build proto files so that the fds' can have a
deterministic serialized format for comparison in CI.

crates/sui-rpc-api/Cargo.toml

@@ -49,7 +49,7 @@ tonic-reflection.workspace = true
 
 [dev-dependencies]
 diffy = "0.3"
-prost-build = "0.13.3"
+protox = "0.7"
 tonic-build = "0.12.3"
 sui-sdk-types = { workspace = true, features = ["proptest"] }
 test-strategy = "0.4.0"

crates/sui-rpc-api/tests/bootstrap.rs

@@ -1,6 +1,7 @@
 // Copyright (c) Mysten Labs, Inc.
 // SPDX-License-Identifier: Apache-2.0
 
+use protox::prost::Message as _;
 use std::fs;
 use std::path::PathBuf;
 
@@ -36,17 +37,37 @@ fn bootstrap() {
     let out_dir = root_dir.join("src").join("proto").join("generated");
     let file_descriptor_set_path = out_dir.join("sui.node.v2.fds.bin");
 
+    let fds = protox::Compiler::new(&[proto_dir.clone()])
+        .unwrap()
+        .include_source_info(true)
+        .include_imports(true)
+        .open_files(&proto_files)
+        .unwrap()
+        .file_descriptor_set();
+
     if let Err(error) = tonic_build::configure()
         .build_client(true)
         .build_server(true)
         .bytes(["."])
         .out_dir(&out_dir)
-        .file_descriptor_set_path(file_descriptor_set_path)
-        .compile_protos(&proto_files[..], &[proto_dir])
+        .compile_fds(fds)
     {
         panic!("failed to compile `sui` protos: {}", error);
     }
 
+    // Generate fds to expose via reflection
+    let mut fds = protox::Compiler::new(&[proto_dir])
+        .unwrap()
+        .include_source_info(false)
+        .include_imports(true)
+        .open_files(&proto_files)
+        .unwrap()
+        .file_descriptor_set();
+
+    // Sort them by their file name in order to have a stable serialized format
+    fds.file.sort_by(|a, b| a.name.cmp(&b.name));
+    std::fs::write(file_descriptor_set_path, fds.encode_to_vec()).unwrap();
+
     let status = std::process::Command::new("git")
         .arg("diff")
         .arg("--exit-code")