*: use lite runtime (#366)

Cargo.toml

@@ -26,3 +26,8 @@ raft = "0.4"
 
 [build-dependencies]
 protobuf-build = "0.1"
+
+# TODO: use patch instead if rust-lang/cargo#6762 is resolved.
+[replace]
+"protobuf-codegen:2.0.6" = { git = "https://github.com/busyjay/rust-protobuf.git", branch = "customize-lite-runtime-2.0" }
+"protobuf:2.0.6" = { git = "https://github.com/busyjay/rust-protobuf.git", branch = "customize-lite-runtime-2.0" }

generate_go.sh

@@ -60,6 +60,7 @@ function collect() {
 # Although eraftpb.proto is copying from raft-rs, however there is no
 # official go code ship with the crate, so we need to generate it manually.
 collect include/eraftpb.proto
+collect include/rustproto.proto
 cd proto
 for file in `ls *.proto`
     do
@@ -77,6 +78,7 @@ function gen() {
     sed -i.bak -E 's/import fmt \"fmt\"//g' *.pb.go
     sed -i.bak -E 's/import io \"io\"//g' *.pb.go
     sed -i.bak -E 's/import math \"math\"//g' *.pb.go
+    sed -i.bak -E 's/import _ \".*rustproto\"//' *.pb.go
     rm -f *.bak
     goimports -w *.pb.go
     cd ../../proto

include/rustproto.proto

@@ -0,0 +1,47 @@
+syntax = "proto2";
+
+import "google/protobuf/descriptor.proto";
+
+// see https://github.com/gogo/protobuf/blob/master/gogoproto/gogo.proto
+// for the original idea
+
+package rustproto;
+
+extend google.protobuf.FileOptions {
+    // When true, oneof field is generated public
+    optional bool expose_oneof_all = 17001;
+    // When true all fields are public, and not accessors generated
+    optional bool expose_fields_all = 17003;
+    // When false, `get_`, `set_`, `mut_` etc. accessors are not generated
+    optional bool generate_accessors_all = 17004;
+    // Use `bytes::Bytes` for `bytes` fields
+    optional bool carllerche_bytes_for_bytes_all = 17011;
+    // Use `bytes::Bytes` for `string` fields
+    optional bool carllerche_bytes_for_string_all = 17012;
+    // When true, will only generate codes that works with lite runtime.
+    optional bool lite_runtime_all = 17035;
+}
+
+extend google.protobuf.MessageOptions {
+    // When true, oneof field is generated public
+    optional bool expose_oneof = 17001;
+    // When true all fields are public, and not accessors generated
+    optional bool expose_fields = 17003;
+    // When false, `get_`, `set_`, `mut_` etc. accessors are not generated
+    optional bool generate_accessors = 17004;
+    // Use `bytes::Bytes` for `bytes` fields
+    optional bool carllerche_bytes_for_bytes = 17011;
+    // Use `bytes::Bytes` for `string` fields
+    optional bool carllerche_bytes_for_string = 17012;
+}
+
+extend google.protobuf.FieldOptions {
+    // When true all fields are public, and not accessors generated
+    optional bool expose_fields_field = 17003;
+    // When false, `get_`, `set_`, `mut_` etc. accessors are not generated
+    optional bool generate_accessors_field = 17004;
+    // Use `bytes::Bytes` for `bytes` fields
+    optional bool carllerche_bytes_for_bytes_field = 17011;
+    // Use `bytes::Bytes` for `string` fields
+    optional bool carllerche_bytes_for_string_field = 17012;
+}