Initial checkin of gRPC to third_party/

third_party/grpc/src/ruby/pb/README.md

+Protocol Buffers
+================
+
+This folder contains protocol buffers provided with gRPC ruby, and the generated
+code to them.
+
+PREREQUISITES
+-------------
+
+The code is is generated using the protoc (> 3.0.0.alpha.1) and the
+grpc_ruby_plugin.  These must be installed to regenerate the IDL defined
+classes, but that's not necessary just to use them.
+
+health_check/v1
+--------------------
+
+This package defines the surface of a simple health check service that gRPC
+servers may choose to implement, and provides an implementation for it. To
+re-generate the surface.
+
+```bash
+$ # (from this directory)
+$ protoc -I ../../proto ../../proto/grpc/health/v1/health.proto \
+    --grpc_out=. \
+    --ruby_out=. \
+    --plugin=protoc-gen-grpc=`which grpc_ruby_plugin`
+```
+
+test
+----
+
+This package defines the surface of the gRPC interop test service and client
+To re-generate the surface, it's necessary to have checked-out versions of
+the grpc interop test proto, e.g, by having the full gRPC repository. E.g,
+
+```bash
+$ # (from this directory within the grpc repo)
+$ protoc -I../../.. ../../../test/proto/{messages,test,empty}.proto \
+    --grpc_out=. \
+    --ruby_out=. \
+    --plugin=protoc-gen-grpc=`which grpc_ruby_plugin`
+```