.bazelrc

# Copyright 2019 Google LLC
#
# 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
#
#     https://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.

# NOTE: This file is not loaded if google-cloud-cpp is built as part of a
# larger project.

# Use host-OS-specific config lines from bazelrc files.
build --enable_platform_specific_config=true
# gRPC fails to compile with Clang 16 if layering check is enabled:
#   https://github.com/grpc/grpc/issues/34482
build --features=-layering_check

# The project requires C++ >= 14. By default Bazel adds `-std=c++0x` which
# disables C++14 features, even if the compilers defaults to C++ >= 14
build:linux --cxxopt=-std=c++14
build:macos --cxxopt=-std=c++14
# Protobuf and gRPC require (or soon will require) C++14 to compile the "host"
# targets, such as protoc and the grpc plugin.
build:linux --host_cxxopt=-std=c++14
build:macos --host_cxxopt=-std=c++14

# Do not create the convenience links. They are inconvenient when the build
# runs inside a docker image or if one builds a quickstart and then builds
# the project separately.
build --experimental_convenience_symlinks=ignore

# We mirror critical tarballs from several sources in case the canonical source
# is temporarily unavailable, e.g., github.com being down. This option and flag
# automatically rewrites the URLs.
build --experimental_downloader_config=bazel/downloader.cfg

# It is frustrating when long-running builds/tests fail, but it is even more
# frustrating when they fail and don't give any output. So, remove the limit.
build --experimental_ui_max_stdouterr_bytes=-1

# TODO(#13311) - remove once gRPC works with Bazel v7 or when gRPC stops using
#     `apple_rules`.
common:macos --repo_env=BAZEL_NO_APPLE_CPP_TOOLCHAIN=1

# Inject ${GTEST_SHUFFLE} and ${GTEST_RANDOM_SEED} into the test environment
# if they are set in the enclosing environment. This allows for running tests
# in a random order to help expose undesirable interdependencies.
test --test_env=GTEST_SHUFFLE --test_env=GTEST_RANDOM_SEED

# By default, build the library with OpenTelemetry
build --//:enable_opentelemetry

# Don't show warnings when building external dependencies. This still shows
# warnings when using these dependencies (say in headers).
build --output_filter='^//((?!(external):).)*$'

# --config libcxx: Compile and link using libc++.
build:libcxx --cxxopt=-stdlib=libc++
build:libcxx --linkopt=-stdlib=libc++
build:libcxx --linkopt=-lc++
build:libcxx --linkopt=-lc++abi

# Clang Sanitizers, use with (for example):
#
# --client_env=CXX=clang++ --client_env=CC=clang --config asan
#

# --config sanitizer refactors comment settings for all sanitizers
build:sanitizer --strip=never
build:sanitizer --copt=-Og
build:sanitizer --copt=-g
build:sanitizer --copt=-fno-omit-frame-pointer

# --config asan: Address Sanitizer
build:asan --config=sanitizer
build:asan --copt=-fsanitize=address
# Protobuf enables -Werror by default. We are building with GCC 13. With
# -Werror and Address Sanitizer the compiler emits warnings in some of the
# Protobuf code, and that stops the build. It may be a compiler bug, or Protobuf
# may be assuming that some compiler flags are set when compiling with Address
# Sanitizier (-DADDRESS_SANITIZER=1 is one possibility).
build:asan --per_file_copt=com_google_protobuf//@-Wno-error
build:asan --per_file_copt=protobuf~//@-Wno-error
build:asan --linkopt=-fsanitize=address
build:asan --action_env=ASAN_OPTIONS=detect_leaks=1:color=always
build:asan --action_env=LSAN_OPTIONS=report_objects=1

# --config tsan: Thread Sanitizer
build:tsan --config=sanitizer
build:tsan --copt=-fsanitize=thread
build:tsan --linkopt=-fsanitize=thread
# report_atomic_races=0: https://github.com/google/sanitizers/issues/953
build:tsan --action_env=TSAN_OPTIONS=halt_on_error=1:second_deadlock_stack=1:report_atomic_races=0

# --config ubsan: Undefined Behavior Sanitizer
build:ubsan --config=sanitizer
build:ubsan --config=libcxx
build:ubsan --copt=-fsanitize=undefined
# By default libcurl calls functions through pointers not matching the original
# type.
build:ubsan --copt=-DCURL_STRICTER
build:ubsan --linkopt=-fsanitize=undefined
build:ubsan --linkopt=-fsanitize-link-c++-runtime
build:ubsan --action_env=UBSAN_OPTIONS=halt_on_error=1:print_stacktrace=1

# --config xsan: Runs misc. sanitizers that aren't covered elsewhere.
build:xsan --config=sanitizer
build:xsan --config=libcxx
build:xsan --copt=-fsanitize=float-divide-by-zero
build:xsan --copt=-fsanitize=nullability
build:xsan --linkopt=-fsanitize-link-c++-runtime
build:xsan --linkopt=-fsanitize=float-divide-by-zero
build:xsan --linkopt=-fsanitize=nullability
build:xsan --action_env=UBSAN_OPTIONS=halt_on_error=1:print_stacktrace=1

# --config msan: Memory Sanitizer
# This requires a version of libc++ compiled with memory sanitizer too. Only
build:msan --config=sanitizer
build:msan --config=libcxx
build:msan --copt=-fsanitize=memory
build:msan --copt=-fsanitize-memory-track-origins
build:msan --copt=-fsanitize-memory-use-after-dtor
build:msan --cxxopt=-I/usr/include/x86_64-unknown-linux-gnu/c++/v1
build:msan --linkopt=-fsanitize=memory
build:msan --action_env=LD_LIBRARY_PATH=/usr/local/lib64:/usr/local/lib:/usr/lib64:/usr/lib:/lib64:/lib
build:msan --action_env=MSAN_OPTIONS=poison_in_dtor=1
build:msan --linkopt=-L/usr/lib/x86_64-unknown-linux-gnu

# --config otel2: Open Telemetery ABI version 2
build:otel2 --cxxopt=-DOPENTELEMETRY_ABI_VERSION_NO=2