Use GRCP and Bazel 1.0 (#6002)

.bazelrc

@@ -1,7 +1,8 @@
 # build config
 build --compilation_mode=opt
 build --action_env=PATH
-build --action_env=PYTHON_BIN_PATH
+build --action_env=PYTHON2_BIN_PATH
+build --action_env=PYTHON3_BIN_PATH
 # Warnings should be errors
 build --per_file_copt=-src/ray/thirdparty/hiredis/dict.c,-.*/arrow/util/logging.cc@-Werror
 # Ignore warnings for protobuf generated files and external projects.
@@ -10,3 +11,6 @@ build --per_file_copt='external*@-w'
 # This workaround is needed due to https://github.com/bazelbuild/bazel/issues/4341
 build --per_file_copt="external/com_github_grpc_grpc/.*@-DGRPC_BAZEL_BUILD"
 build --http_timeout_scaling=5.0
+# This workaround is due to an incompatibility of
+# bazel_common/tools/maven/pom_file.bzl with Bazel 1.0
+build --incompatible_depset_is_not_iterable=false

BUILD.bazel

@@ -2,11 +2,11 @@
 # C/C++ documentation: https://docs.bazel.build/versions/master/be/c-cpp.html
 
 load("@com_github_grpc_grpc//bazel:cc_grpc_library.bzl", "cc_grpc_library")
-load("@build_stack_rules_proto//python:python_proto_compile.bzl", "python_proto_compile")
-load("@build_stack_rules_proto//python:python_grpc_compile.bzl", "python_grpc_compile")
+load("@com_github_grpc_grpc//bazel:cython_library.bzl", "pyx_library")
+load("@rules_proto_grpc//python:defs.bzl", "python_proto_compile")
+load("@rules_proto_grpc//python:defs.bzl", "python_grpc_compile")
 load("@com_github_google_flatbuffers//:build_defs.bzl", "flatbuffer_cc_library")
 load("@//bazel:ray.bzl", "flatbuffer_py_library")
-load("@//bazel:cython_library.bzl", "pyx_library")
 
 COPTS = ["-DRAY_USE_GLOG"] + select({
     "@bazel_tools//src/conditions:windows": [
@@ -744,7 +744,6 @@ pyx_library(
         "python/ray/includes/*.pxd",
         "python/ray/includes/*.pxi",
     ]),
-    copts = COPTS,
     deps = [
         "//:core_worker_lib",
         "//:raylet_lib",

WORKSPACE

@@ -7,3 +7,10 @@ ray_deps_setup()
 load("//bazel:ray_deps_build_all.bzl", "ray_deps_build_all")
 
 ray_deps_build_all()
+
+# This needs to be run after grpc_deps() in ray_deps_build_all() to make
+# sure all the packages loaded by grpc_deps() are available. However a
+# load() statement cannot be in a function so we put it here.
+load("@com_github_grpc_grpc//bazel:grpc_extra_deps.bzl", "grpc_extra_deps")
+
+grpc_extra_deps()