.bazelrc

# Transparently attempt to use the tensorstore mirror for bazel downloads
common  --downloader_config=bazel/rewrite.config

# Enable using platform specific build settings
build --enable_platform_specific_config

# Disable bzlmod to suppress a warning since we don't yet support it.
build --noenable_bzlmod --enable_workspace

# Specify platform mapping to ensure "platforms" and --cpu flags are
# in sync.
build --platform_mappings=tools/bazel_platforms/platform_mappings

# Use absl with googletest
build --define=absl=1
build --define=protobuf_allow_msvc=true

# ----------------------------------------
# Configure C++17 mode
# ----------------------------------------

build:gcc_or_clang --cxxopt=-std=c++17
build:gcc_or_clang --host_cxxopt=-std=c++17

build:gcc_or_clang --cxxopt=-fsized-deallocation
build:gcc_or_clang --host_cxxopt=-fsized-deallocation

build:msvc --cxxopt=/std:c++17
build:msvc --host_cxxopt=/std:c++17

# Use sized deallocation for C++ objects
build:msvc --cxxopt=/Zc:sizedDealloc
build:msvc --host_cxxopt=/Zc:sizedDealloc

# Make MSVC conform to the C++ standard regarding hidden friends
build:msvc --cxxopt=/Zc:hiddenFriend
build:msvc --host_cxxopt=/Zc:hiddenFriend

# ----------------------------------------

# protobuf/upb has some functions where errors are incorrectly raised:
# https://github.com/protocolbuffers/upb/blob/main/upb/message/accessors_internal.h

build:gcc_or_clang --per_file_copt=upb/.*\\.c$@-Wno-array-bounds,-Wno-stringop-overread
build:gcc_or_clang --host_per_file_copt=upb/.*\\.c$@-Wno-array-bounds,-Wno-stringop-overread

build:gcc_or_clang --per_file_copt=upbc/.*\\.cc$@-Wno-array-bounds,-Wno-stringop-overread
build:gcc_or_clang --host_per_file_copt=upbc/.*\\.cc$@-Wno-array-bounds,-Wno-stringop-overread

build:gcc_or_clang --per_file_copt=grpc/src/.*\\.cc$@-Wno-attributes
build:gcc_or_clang --host_per_file_copt=grpc/src/.*\\.cc$@-Wno-attributes

build:msvc --per_file_copt=upb/.*\\.c$@/wd5287
build:msvc --host_per_file_copt=upb/.*\\.c$@/wd5287

build:msvc --per_file_copt=.*\\.upb\\.c$@/wd5287
build:msvc --host_per_file_copt=.*\\.upb\\.c@/wd5287
build:msvc --per_file_copt=.*\\.upbdefs\\.c$@/wd5287
build:msvc --host_per_file_copt=.*\\.upbdefs\\.c$@/wd5287
build:msvc --per_file_copt=.*\\.upb_minitable\\.c$@/wd5287
build:msvc --host_per_file_copt=.*\\.upb_minitable\\.c@/wd5287

# gRPC has some errors on windows as well

build:msvc --per_file_copt=grpc/.*\\.cc$@/wd4624
build:msvc --host_per_file_copt=grpc/.*\\.cc$@/wd4624
build:msvc --per_file_copt=grpc/.*\\.cc$@/wd4244
build:msvc --host_per_file_copt=grpc/.*\\.cc$@/wd4244
build:msvc --per_file_copt=external/xds/.*\\.cc$@/wd4244
build:msvc --host_per_file_copt=external/xds/.*\\.cc$@/wd4244

# ----------------------------------------
# Disable warnings
# ----------------------------------------

# Use colors for diagnostics
build:gcc_or_clang --copt=-fdiagnostics-color=always
build:gcc_or_clang --host_copt=-fdiagnostics-color=always

# disable deprecated-declarations warnings
build:gcc_or_clang --copt='-Wno-deprecated-declarations'
build:gcc_or_clang --host_copt='-Wno-deprecated-declarations'

# disable mixed sign comparison warnings
build:gcc_or_clang --copt='-Wno-sign-compare'
build:gcc_or_clang --host_copt='-Wno-sign-compare'

# disable spurious warnings from gcc
build:gcc_or_clang --copt='-Wno-unused-but-set-parameter'
build:gcc_or_clang --host_copt='-Wno-unused-but-set-parameter'
build:gcc_or_clang --copt='-Wno-maybe-uninitialized'
build:gcc_or_clang --host_copt='-Wno-maybe-uninitialized'

# Not applicable in C++17 but still warned about.
build:gcc_or_clang --copt='-Wno-sequence-point'
build:gcc_or_clang --host_copt='-Wno-sequence-point'

# disable warnings from clang about unknown warnings
build:gcc_or_clang --copt='-Wno-unknown-warning-option'
build:gcc_or_clang --host_copt='-Wno-unknown-warning-option'

# disable warnings from clang about stringof-overflow
build:gcc_or_clang --copt='-Wno-stringop-overflow'
build:gcc_or_clang --host_copt='-Wno-stringop-overflow'

# Disable warning regarding `msvc::no_unique_address`
build:msvc --copt=/wd4848
build:msvc --host_copt=/wd4848

# ----------------------------------------
# Linux and FreeBSD configuration settings
# ----------------------------------------

# Assume GCC or Clang on Linux
build:linux --config=gcc_or_clang
build:freebsd --config=gcc_or_clang

# ------------------------------
# MacOS configuration settings
# ------------------------------

# We can safely assume Clang or GCC on macOS (almost surely Clang).
build:macos --config=gcc_or_clang

# Workaround for https://github.com/abseil/abseil-cpp/issues/848
# Root cause: https://github.com/bazelbuild/bazel/issues/4341
build:macos --features=-supports_dynamic_linker

# ------------------------------
# Windows configuration settings
# ------------------------------

# Significantly speeds up Python test execution.  Requires Windows
# developer mode enabled in order for non-admin users to create
# symlinks.
startup --windows_enable_symlinks

# https://github.com/protocolbuffers/protobuf/issues/12947
# Windows has path-length limits of 260 characters leading to errors which
# may require a shorter filenames. If encountered, uncomment and adjust:
#
# startup --output_base=C:\\Out

# By default assume MSVC on Windows.
build:windows --config=msvc
build:windows --config=windows_common

# Fix https://github.com/bazelbuild/bazel/issues/17068
#
# In Bazel 6.0.0, `archive_param_file` was accidentally disabled by
# default for Windows.
build:windows_common --features=archive_param_file
build:windows_common --features=linker_param_file
build:windows_common --features=compiler_param_file
build:windows_common --enable_runfiles=true
build:windows_common --build_python_zip=false

# ------------------------------
# MINGW settings
# ------------------------------

# Unfortunately, with `--incompatible_enable_cc_toolchain_resolution`
# specified, it is inconvenient to use mingw.
#
# https://bazel.build/configure/windows#clang
build:windows_x86_64_mingw --noenable_platform_specific_config --config=windows_common --config=gcc_or_clang
build:windows_x86_64_mingw --extra_toolchains=@local_config_cc//:cc-toolchain-x64_windows_mingw
build:windows_x86_64_mingw --extra_execution_platforms=//tools/bazel_platforms:windows_x86_64_mingw

# Prevent "file too big" / "too many sections" errors.
build:windows_x86_64_mingw --copt='-Wa,-mbig-obj'
build:windows_x86_64_mingw --host_copt='-Wa,-mbig-obj'

# mingw  https://sourceforge.net/p/mingw-w64/bugs/134/
build:windows_x86_64_mingw --copt=-D_NO_W32_PSEUDO_MODIFIERS
build:windows_x86_64_mingw --host_copt=-D_NO_W32_PSEUDO_MODIFIERS

# optimize chttp2 for "file too big" errors for grpc
build:windows_x86_64_mingw --per_file_copt=grpc/src/core/.*\\.cc$@-O2
build:windows_x86_64_mingw --host_per_file_copt=grpc/src/core/.*\\.cc$@-O2