Extract dependencies into .bzl file

- Easier loading from repos depending on istio proxy
- Extract third_party BUILD files into it so no need to copy around

Author: lizan

WORKSPACE

@@ -15,172 +15,15 @@
 ################################################################################
 #
 
-# required by servicecontrol_client
-git_repository(
-    name = "boringssl",
-    commit = "12c35d69008ae6b8486e435447445240509f7662",  # 2016-10-24
-    remote = "https://boringssl.googlesource.com/boringssl",
-)
-
-bind(
-    name = "boringssl_crypto",
-    actual = "@boringssl//:crypto",
-)
-
-# Required by gRPC.
-bind(
-    name = "libssl",
-    actual = "@boringssl//:ssl",
-)
-
-new_git_repository(
-    name = "zlib_git",
-    build_file = "third_party/BUILD.zlib",
-    commit = "50893291621658f355bc5b4d450a8d06a563053d",  # v1.2.8
-    remote = "https://github.com/madler/zlib.git",
-)
-
-bind(
-    name = "zlib",
-    actual = "@zlib_git//:zlib"
-)
-
-new_git_repository(
-    name = "nanopb_git",
-    build_file = "third_party/BUILD.nanopb",
-    commit = "f8ac463766281625ad710900479130c7fcb4d63b",
-    remote = "https://github.com/nanopb/nanopb.git",
-)
-
-bind(
-    name = "nanopb",
-    actual = "@nanopb_git//:nanopb",
-)
-
-git_repository(
-    name = "grpc_git",
-    commit = "d28417c856366df704200f544e72d31056931bce",
-    remote = "https://github.com/grpc/grpc.git",
-    init_submodules = True,
-)
-
-bind(
-    name = "gpr",
-    actual = "@grpc_git//:gpr",
-)
-
-bind(
-    name = "grpc",
-    actual = "@grpc_git//:grpc",
-)
-
-bind(
-    name = "grpc_cpp_plugin",
-    actual = "@grpc_git//:grpc_cpp_plugin",
-)
-
-bind(
-    name = "grpc++",
-    actual = "@grpc_git//:grpc++",
-)
-
-bind(
-    name = "grpc_lib",
-    actual = "@grpc_git//:grpc++_reflection",
-)
-
-git_repository(
-    name = "protobuf_git",
-    commit = "a428e42072765993ff674fda72863c9f1aa2d268",  # v3.1.0
-    remote = "https://github.com/google/protobuf.git",
-)
-
-bind(
-    name = "protoc",
-    actual = "@protobuf_git//:protoc",
-)
-
-bind(
-    name = "protobuf",
-    actual = "@protobuf_git//:protobuf",
-)
-
-bind(
-    name = "cc_wkt_protos",
-    actual = "@protobuf_git//:cc_wkt_protos",
-)
-
-bind(
-    name = "cc_wkt_protos_genproto",
-    actual = "@protobuf_git//:cc_wkt_protos_genproto",
-)
-
-bind(
-    name = "protobuf_compiler",
-    actual = "@protobuf_git//:protoc_lib",
-)
-
-bind(
-    name = "protobuf_clib",
-    actual = "@protobuf_git//:protobuf_lite",
-)
-
-new_git_repository(
-    name = "googletest_git",
-    build_file = "third_party/BUILD.googletest",
-    commit = "d225acc90bc3a8c420a9bcd1f033033c1ccd7fe0",
-    remote = "https://github.com/google/googletest.git",
-)
-
-bind(
-    name = "googletest",
-    actual = "@googletest_git//:googletest",
-)
-
-bind(
-    name = "googletest_main",
-    actual = "@googletest_git//:googletest_main",
-)
-
-bind(
-    name = "googletest_prod",
-    actual = "@googletest_git//:googletest_prod",
-)
-
-new_git_repository(
-    name = "googleapis_git",
-    commit = "db1d4547dc56a798915e0eb2c795585385922165",
-    remote = "https://github.com/googleapis/googleapis.git",
-    build_file = "third_party/BUILD.googleapis",
-)
-
-bind(
-    name = "servicecontrol",
-    actual = "@googleapis_git//:servicecontrol",
-)
-
-bind(
-    name = "servicecontrol_genproto",
-    actual = "@googleapis_git//:servicecontrol_genproto",
-)
-
-bind(
-    name = "service_config",
-    actual = "@googleapis_git//:service_config",
-)
-
-bind(
-    name = "cloud_trace",
-    actual = "@googleapis_git//:cloud_trace",
-)
-
-git_repository(
-    name = "servicecontrol_client_git",
-    commit = "d739d755365c6a13d0b4164506fd593f53932f5d",
-    remote = "https://github.com/cloudendpoints/service-control-client-cxx.git",
-)
-
-bind(
-    name = "servicecontrol_client",
-    actual = "@servicecontrol_client_git//:service_control_client_lib",
-)
+load("//contrib/endpoints:repositories.bzl",
+    "protobuf_repositories",
+    "grpc_repositories",
+    "boringssl_repositories",
+    "servicecontrol_client_repositories",
+    "googletest_repositories")
+
+boringssl_repositories()
+protobuf_repositories()
+grpc_repositories()
+servicecontrol_client_repositories()
+googletest_repositories()

contrib/endpoints/BUILD

@@ -0,0 +1,17 @@
+# Copyright 2016 Google Inc. All Rights Reserved.
+#
+# 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.
+#
+################################################################################
+#
+# This file is intended to be empty for repositories.bzl