chore: import upstream snapshot with attribution

tensorflow/python/util/protobuf/BUILD

@@ -0,0 +1,86 @@
+# Tensorflow protobuf utility package
+
+load("@rules_python//python:proto.bzl", "py_proto_library")
+load("@xla//third_party/rules_python/python:py_library.bzl", "py_library")
+load("//tensorflow:tensorflow.default.bzl", "get_compatible_with_portable", "tf_py_strict_test")
+load("//tensorflow/core/platform:build_config.bzl", "tf_proto_library")  # @unused
+
+visibility = [
+    "//third_party/cloud_tpu/convergence_tools:__subpackages__",
+    "//tensorflow:internal",
+    "//tensorflow/lite/toco/python:__pkg__",
+    "//tensorflow_models:__subpackages__",
+    "//tensorflow_model_optimization:__subpackages__",
+    "//third_party/py/cleverhans:__subpackages__",
+    "//third_party/py/launchpad:__subpackages__",
+    "//third_party/py/reverb:__subpackages__",
+    "//third_party/py/neural_structured_learning:__subpackages__",
+    "//third_party/py/tensorflow_examples:__subpackages__",
+    "//third_party/py/tf_agents:__subpackages__",  # For benchmarks.
+    "//third_party/py/tf_slim:__subpackages__",
+    "//third_party/py/tensorflow_docs:__subpackages__",
+]
+
+package(
+    # copybara:uncomment default_applicable_licenses = ["//tensorflow:license"],
+    default_visibility = visibility,
+    licenses = ["notice"],
+)
+
+tf_proto_library(
+    name = "compare_test_proto",
+    testonly = 1,
+    srcs = ["compare_test.proto"],
+)
+
+tf_py_strict_test(
+    name = "protobuf_compare_test",
+    size = "small",
+    srcs = ["compare_test.py"],
+    main = "compare_test.py",
+    tags = ["no_pip"],  # compare_test_pb2 proto is not available in pip.
+    deps = [
+        ":compare_test_proto_py",
+        ":protobuf",
+        "//tensorflow/python/platform:test",
+    ],
+)
+
+filegroup(
+    name = "compare_test_proto_src",
+    srcs = ["compare_test.proto"],
+)
+
+# copybara:uncomment_begin(google-only)
+# py_proto_library(
+#     name = "compare_test_py_pb2",
+#     testonly = 1,
+#     has_services = 0,
+#     deps = [":compare_test_proto"],
+# )
+# copybara:uncomment_end
+
+py_library(
+    name = "protobuf",
+    srcs = glob(
+        ["*.py"],
+        exclude = ["*_test.py"],
+    ),
+    compatible_with = get_compatible_with_portable(),
+    strict_deps = True,
+    visibility = visibility + [
+        "//tensorflow:__pkg__",
+        "//third_party/py/tensorflow_core:__subpackages__",
+        "//third_party/py/tensorflow_data_validation:__subpackages__",
+        "//third_party/py/tf_agents:__subpackages__",
+        "//third_party/py/tfx:__subpackages__",
+    ],
+    deps = [
+        # global_test_configuration is added here because all major tests depend on this
+        # library. It isn't possible to add these test dependencies via tensorflow.bzl's
+        # py_test because not all tensorflow tests use tensorflow.bzl's py_test.
+        "//tensorflow/python:global_test_configuration",
+        "@com_google_protobuf//:protobuf_python",
+        "//tensorflow/python/util:compat",
+    ],
+)