Get rules_apple and apple_support via grpc_deps. (#379)

Author: g-easy

WORKSPACE

@@ -46,47 +46,33 @@ http_archive(
     urls = ["https://github.com/google/benchmark/archive/master.zip"],
 )
 
-# Used by gRPC.
+# gRPC
 http_archive(
-    name = "build_bazel_rules_apple",
-    strip_prefix = "rules_apple-master",
-    urls = ["https://github.com/bazelbuild/rules_apple/archive/master.zip"],
+    name = "com_github_grpc_grpc",
+    strip_prefix = "grpc-master",
+    urls = ["https://github.com/grpc/grpc/archive/master.tar.gz"],
 )
 
+load("@com_github_grpc_grpc//bazel:grpc_deps.bzl", "grpc_deps")
+
+grpc_deps()
+
+# grpc_deps() cannot load() its deps, this WORKSPACE has to do it.
+# See also: https://github.com/bazelbuild/bazel/issues/1943
 load(
     "@build_bazel_rules_apple//apple:repositories.bzl",
     "apple_rules_dependencies",
 )
 
 apple_rules_dependencies()
 
-# Used by gRPC.
-http_archive(
-    name = "build_bazel_apple_support",
-    strip_prefix = "apple_support-master",
-    urls = ["https://github.com/bazelbuild/apple_support/archive/master.zip"],
-)
-
 load(
     "@build_bazel_apple_support//lib:repositories.bzl",
     "apple_support_dependencies",
 )
 
 apple_support_dependencies()
 
-# gRPC
-http_archive(
-    name = "com_github_grpc_grpc",
-    strip_prefix = "grpc-master",
-    urls = ["https://github.com/grpc/grpc/archive/master.tar.gz"],
-)
-
-load("@com_github_grpc_grpc//bazel:grpc_deps.bzl", "grpc_deps")
-
-grpc_deps()
-
-# gRPC depends on upb, which depends on a @bazel_version repo
-# which it provides but has to be instantiated explicitly.
 load("@upb//bazel:repository_defs.bzl", "bazel_version_repository")
 
 bazel_version_repository(name = "bazel_version")

tools/pin_deps.py

@@ -55,8 +55,6 @@ def workspace_rule(self):
     GitHubProject('com_google_absl', 'abseil', 'abseil-cpp'),
     GitHubProject('com_google_googletest', 'google', 'googletest'),
     GitHubProject('com_github_google_benchmark', 'google', 'benchmark'),
-    GitHubProject('build_bazel_apple_support', 'bazelbuild', 'apple_support'),
-    GitHubProject('build_bazel_rules_apple', 'bazelbuild', 'rules_apple'),
     GitHubProject('com_github_grpc_grpc', 'grpc', 'grpc'),
     GitHubProject('com_github_jupp0r_prometheus_cpp', 'jupp0r', 'prometheus-cpp'),
     GitHubProject('com_github_curl', 'curl', 'curl'),