Apply reconstructed TFMD patch to resolve proto build issues

Author: vkarampudi

struct2tensor/workspace.bzl

@@ -79,4 +79,6 @@ def struct2tensor_workspace():
         urls = [
             "https://github.com/tensorflow/metadata/archive/%s.tar.gz" % _TFMD_COMMIT_HASH,
         ],
+        patches = ["//third_party:tfmd.patch"],
+        patch_args = ["-p1"],
     )

third_party/tfmd.patch

@@ -2,16 +2,17 @@ diff --git a/tensorflow_metadata/proto/v0/BUILD b/tensorflow_metadata/proto/v0/B
 index 24cf416..9e426aa 100644
 --- a/tensorflow_metadata/proto/v0/BUILD
 +++ b/tensorflow_metadata/proto/v0/BUILD
-@@ -14,8 +14,6 @@
+@@ -14,22 +14,14 @@
  # ==============================================================================
-
-
+ 
+ 
 -load("@com_google_protobuf//bazel:py_proto_library.bzl", "py_proto_library")
 -
  licenses(["notice"])  # Apache 2.0
-
+ 
  package(default_visibility = ["//visibility:public"])
-@@ -24,26 +22,20 @@ proto_library(
+ 
+ proto_library(
      name = "metadata_v0_proto",
      srcs = [
          "anomalies.proto",
@@ -21,7 +22,7 @@ index 24cf416..9e426aa 100644
          "problem_statement.proto",
          "schema.proto",
          "statistics.proto",
-+        "derived_feature.proto"
++        "derived_feature.proto",
      ],
      deps = [
          # For well-known proto types like protobuf.Any.
@@ -39,19 +40,21 @@ index 24cf416..9e426aa 100644
          "@com_google_protobuf//:wrappers_proto",
      ],
  )
-@@ -60,10 +52,12 @@ cc_library(
+@@ -59,8 +51,10 @@ cc_library(
      deps = [":cc_metadata_v0_proto_cc"],
  )
-
+ 
 -py_proto_library(
-+alias(
-     name = "metadata_v0_proto_py_pb2",
+-    name = "metadata_v0_proto_py_pb2",
 -    deps = [
 -        ":metadata_v0_proto",
 -    ],
+-)
++alias(
++    name = "metadata_v0_proto_py_pb2",
 +    actual = ":metadata_v0_proto",
- )
-
++)
++
 +alias(
 +    name = "metadata_v0_proto_py_pb2_genproto",
 +    actual = ":metadata_v0_proto",