Protocol Buffers - Google's data interchange format (grpc依赖) https://developers.google.com/protocol-buffers/
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# Protocol Buffers - Google's data interchange format
# Copyright 2008 Google Inc. All rights reserved.
#
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file or at
# https://developers.google.com/open-source/licenses/bsd
"""
A helper rule that reads a native boolean flag.
"""
load("@bazel_skylib//rules:common_settings.bzl", "BuildSettingInfo")
def _impl(ctx):
return [BuildSettingInfo(value = ctx.attr.value)]
_native_bool_flag_rule = rule(
implementation = _impl,
attrs = {"value": attr.bool()},
)
def native_bool_flag(*, name, flag, match_value = "true", result = True, **kwargs):
_native_bool_flag_rule(
name = name,
value = select({
name + "_setting": result,
"//conditions:default": not result,
}),
**kwargs
)
native.config_setting(
name = name + "_setting",
values = {flag: match_value},
visibility = ["//visibility:private"],
)