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Blacklist .proto source files if Bazel allows us to #7065

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merged 3 commits into from Jan 9, 2020
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7 changes: 6 additions & 1 deletion BUILD
Expand Up @@ -3,6 +3,7 @@
load("@rules_cc//cc:defs.bzl", "cc_binary", "cc_library", "cc_test", "objc_library")
load("@rules_java//java:defs.bzl", "java_library")
load("@rules_proto//proto:defs.bzl", "proto_lang_toolchain", "proto_library")
load("@rules_proto//proto/private:native.bzl", "native_proto_common")
load("@rules_python//python:defs.bzl", "py_library")

licenses(["notice"])
Expand Down Expand Up @@ -986,9 +987,13 @@ cc_library(
],
)

# Note: We use `native_proto_common` here because we depend on an implementation-detail of
# `proto_lang_toolchain`, which may not be available on `proto_common`.
reject_blacklisted_files = not hasattr(native_proto_common, "proto_lang_toolchain_rejects_files_do_not_use_or_we_will_break_you_without_mercy")
cc_toolchain_blacklisted_protos = [proto + "_proto" for proto in WELL_KNOWN_PROTO_MAP.keys()] if reject_blacklisted_files else [":well_known_protos"]
proto_lang_toolchain(
name = "cc_toolchain",
blacklisted_protos = [proto + "_proto" for proto in WELL_KNOWN_PROTO_MAP.keys()],
blacklisted_protos = cc_toolchain_blacklisted_protos,
command_line = "--cpp_out=$(OUT)",
runtime = ":protobuf",
visibility = ["//visibility:public"],
Expand Down