chain/ethereum: set --experimental_allow_proto3_optional flag for tonic build

incrypto32 · incrypto32 · commit 21445c0f7d84 · 2025-10-01T13:58:42.000+04:00
diff --git a/chain/ethereum/build.rs b/chain/ethereum/build.rs
@@ -3,6 +3,7 @@ fn main() {
 
     tonic_build::configure()
         .out_dir("src/protobuf")
+        .protoc_arg("--experimental_allow_proto3_optional")
         .compile_protos(&["proto/ethereum.proto"], &["proto"])
         .expect("Failed to compile Firehose Ethereum proto(s)");
 }

Original file line number	Diff line number	Diff line change
`@@ -3,6 +3,7 @@ fn main() {`
`3`	`3`
`4`	`4`	`tonic_build::configure()`
`5`	`5`	`.out_dir("src/protobuf")`
	`6`	`+ .protoc_arg("--experimental_allow_proto3_optional")`
`6`	`7`	`.compile_protos(&["proto/ethereum.proto"], &["proto"])`
`7`	`8`	`.expect("Failed to compile Firehose Ethereum proto(s)");`
`8`	`9`	`}`