Build oak_client with bazel

Change-Id: Ia7289c4f2c7de54355485359dc105db858680635

Cargo.bazel.lock

@@ -723,6 +723,7 @@ dependencies = [
  "coset",
  "curve25519-dalek",
  "ecdsa",
+ "futures-util",
  "getrandom",
  "goblin",
  "hex",

WORKSPACE

@@ -475,6 +475,7 @@ crates_repository(
             ],
             version = "*",
         ),
+        "futures-util": crate.spec(version = "*"),
         "getrandom": crate.spec(
             version = "*",
         ),

cargo-bazel-lock.json

@@ -1,5 +1,5 @@
 {
-  "checksum": "87666e043302a436f42f430e49d01477dc8bac0050d2afbab59f1c5e74216c93",
+  "checksum": "9872a2c4b34b30e31ccb5db846832f1a2642beec9fa9266f82f20c3db29bbf54",
   "crates": {
     "acpi 5.0.0": {
       "name": "acpi",
@@ -4379,6 +4379,10 @@
               "id": "ecdsa 0.16.9",
               "target": "ecdsa"
             },
+            {
+              "id": "futures-util 0.3.30",
+              "target": "futures_util"
+            },
             {
               "id": "getrandom 0.2.12",
               "target": "getrandom"
@@ -5808,6 +5812,7 @@
             "alloc",
             "async-await",
             "async-await-macro",
+            "default",
             "futures-macro",
             "futures-sink",
             "sink",
@@ -19318,6 +19323,7 @@
     "coset 0.3.7",
     "curve25519-dalek 4.1.1",
     "ecdsa 0.16.9",
+    "futures-util 0.3.30",
     "getrandom 0.2.12",
     "goblin 0.8.0",
     "hex 0.4.3",

oak_client/BUILD

@@ -0,0 +1,68 @@
+#
+# Copyright 2024 The Project Oak Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+load("@rules_rust//cargo:defs.bzl", "cargo_build_script")
+load("@rules_rust//rust:defs.bzl", "rust_library")
+
+package(
+    default_visibility = ["//visibility:public"],
+    licenses = ["notice"],
+)
+
+rust_library(
+    name = "oak_client",
+    srcs = [
+        "src/client.rs",
+        "src/lib.rs",
+        "src/transport.rs",
+        "src/verifier.rs",
+    ],
+    proc_macro_deps = [
+        "@oak_crates_index//:async-trait",
+    ],
+    deps = [
+        ":build",
+        "//oak_attestation_verification",
+        "//oak_crypto",
+        "//oak_proto_rust",
+        "@oak_crates_index//:anyhow",
+        "@oak_crates_index//:futures-util",
+        "@oak_crates_index//:prost",
+        "@oak_crates_index//:tonic",
+    ],
+)
+
+cargo_build_script(
+    name = "build",
+    srcs = [
+        "build.rs",
+    ],
+    build_script_env = {
+        "PROTOC": "$(execpath @com_google_protobuf//:protoc)",
+    },
+    crate_features = ["bazel"],
+    data = [
+        "//proto/session:messages_proto",
+        "//proto/session:service_streaming_proto",
+    ],
+    tools = [
+        "@com_google_protobuf//:protoc",
+    ],
+    deps = [
+        "//oak_grpc_utils",
+        "@oak_crates_index//:prost-build",
+    ],
+)