WORKSPACE.bazel

workspace(name = "starflate")

load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")

COMMON_CXX_FLAGS = [
    "-march=native",
    "-std=c++23",
]

COMMON_CXX_WARNINGS = [
    "-Werror",
    "-Wall",
    "-Wextra",
    "-Wpedantic",
    "-Wconversion",
    "-Wnon-virtual-dtor",
    "-Wold-style-cast",
    "-Wcast-align",
    "-Wunused",
    "-Woverloaded-virtual",
    "-Wmisleading-indentation",
    "-Wnull-dereference",
    "-Wdouble-promotion",
    "-Wformat=2",
    "-Wimplicit-fallthrough",
]

# Bazel sends stdout/stderr to file so we cannot use `-fdiagnostics-color=auto`
# https://github.com/bazelbuild/bazel/issues/6046#issuecomment-626941725
#
# Clang will also require libtinfo.so.5 with `-fdiagnostics-color=always`
# https://github.com/mun-lang/mun/issues/191#issuecomment-753402659
# https://reviews.llvm.org/D42274
load("//tools:host_system_libraries.bzl", "host_system_libraries")

host_system_libraries(
    name = "host_system_libraries",
    find = ["libtinfo.so.5"],
)

load("@host_system_libraries//:defs.bzl", "HOST_SYSTEM_LIBRARIES")

# Pull in rules_cc and patch it to inject options to the `copts` attribute of
# `cc_{binary,library,test}`. This is used to disable UBSan null pointer checks
# with GCC as enabling these features will reject valid code:
#
# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67762#c2
# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71962
#
# Note that we cannot set these options in toolchain registration
# (bootlin_toolchain below) as the sanitize feature disable flags will precede
# `-fsanitize=undefined` from `--features=ubsan` and thus be ignored.
#
# https://clang.llvm.org/docs/UndefinedBehaviorSanitizer.html#id3
#
# The patched cc_* rules adds the sanitize feature disable flags in `copts` only
# for GCC + UBSan builds. As these are set in `user_compile_flags`, these
# options follow `-fsanitize=undefined` when present.
#
# https://bazel.build/rules/lib/toplevel/cc_common#parameters_5
#
http_archive(
    name = "rules_cc",
    patch_args = ["-p1"],
    patches = ["//toolchain:rules_cc-gcc-ubsan-no-sanitize-null.patch"],
    sha256 = "2037875b9a4456dce4a79d112a8ae885bbc4aad968e6587dca6e64f3a0900cdf",
    strip_prefix = "rules_cc-0.0.9",
    urls = ["https://github.com/bazelbuild/rules_cc/releases/download/0.0.9/rules_cc-0.0.9.tar.gz"],
)

# Note: not correct on MacOS.
LLVM_COLOR_FLAGS = ["-fdiagnostics-color=always" if "libinfo.so.5" in HOST_SYSTEM_LIBRARIES else ""]

BAZEL_BOOTLIN_COMMIT = "d15e4b4c3a984668d1d6bd5f3ca032efecae5cb1"

http_archive(
    name = "bazel_bootlin",
    sha256 = "9019568dc57601719b964a82371835fdbb3673a60bacb1ea2e049bc2c01c0a5f",
    strip_prefix = "bazel_bootlin-%s" % BAZEL_BOOTLIN_COMMIT,
    url = "https://github.com/oliverlee/bazel_bootlin/archive/%s.tar.gz" % BAZEL_BOOTLIN_COMMIT,
)

load("@bazel_bootlin//:defs.bzl", "bootlin_toolchain")

bootlin_toolchain(
    name = "gcc_toolchain",
    # x86-64-v3 should cover CPUs released after ~2015.
    # see https://www.phoronix.com/news/GCC-11-x86-64-Feature-Levels.
    architecture = "x86-64-v3",
    # see https://toolchains.bootlin.com/releases_x86-64-v3.html
    buildroot_version = "bleeding-edge-2023.08-1",
    extra_cxx_flags = [
        "-fdiagnostics-color=always",
        "-Wduplicated-cond",
        "-Wduplicated-branches",
        "-Wlogical-op",
        "-Wuseless-cast",
        "-Wshadow=compatible-local",  # Equivalent to -Wshadow on llvm. GCC default is stupid.
    ] + COMMON_CXX_FLAGS + COMMON_CXX_WARNINGS,
    libc_impl = "glibc",
)

TOOLCHAINS_LLVM_VERSION = "bba94f8138ab454d70afcd263788b34e2801e2ba"

http_archive(
    name = "toolchains_llvm",
    integrity = "sha256-IyBbm0rakJat7jSGvZ65xVGS2xQQhbXvmx8Q5EA5wlA=",
    strip_prefix = "toolchains_llvm-%s" % TOOLCHAINS_LLVM_VERSION,
    url = "https://github.com/bazel-contrib/toolchains_llvm/archive/%s.tar.gz" % TOOLCHAINS_LLVM_VERSION,
)

load("//tools:llvm_toolchain_dependencies.bzl", "llvm_toolchain_dependencies")

llvm_toolchain_dependencies()

load("//tools:llvm_toolchain.bzl", "llvm_toolchain")

llvm_toolchain(
    name = "llvm_toolchain",
    cxx_flags = {
        "": [
            "-stdlib=libc++",
            "-Wshadow",
        ] + COMMON_CXX_FLAGS + COMMON_CXX_WARNINGS + LLVM_COLOR_FLAGS,
    },
    # Link UBSan C++ runtime libraries if the `ubsan` feature is enabled
    # https://github.com/bazelbuild/bazel/issues/12797#issuecomment-980641064
    # use `link_libs` to prevent overriding default `link_flags`
    # https://github.com/grailbio/bazel-toolchain/blob/ceeedcc4464322e05fe5b8df3749cc02273ee083/toolchain/cc_toolchain_config.bzl#L148-L150
    link_libs = {
        "": ["-fsanitize-link-c++-runtime"],
    },
    linux_x86_64_sysroot = "@gcc_toolchain_files//x86_64-buildroot-linux-gnu/sysroot",
    llvm_version = "17.0.2",
)

# register llvm first, it has better error messages
load("@llvm_toolchain//:toolchains.bzl", "llvm_register_toolchains")

llvm_register_toolchains()

register_toolchains(
    "@gcc_toolchain//:toolchain",
)

BOOST_UT_VERSION = "20f2c3f811e25b8c398c6e98545dbf07d72eb4e8"

http_archive(
    name = "boost_ut",
    build_file_content = """
load("@rules_cc//cc:defs.bzl", "cc_library")

cc_library(
    name = "boost_ut",
    hdrs = ["include/boost/ut.hpp"],
    includes = ["."],
    visibility = ["//visibility:public"],
)
""",
    sha256 = "b5a4f3f1f88f3fb375370a734ab7b6b6c7b4f23e82f949544e61f64ebdb1f8dd",
    strip_prefix = "ut-%s" % BOOST_UT_VERSION,
    url = "https://github.com/boost-ext/ut/archive/%s.tar.gz" % BOOST_UT_VERSION,
)

GOOGLE_BENCHMARK_VERSION = "1.8.0"

http_archive(
    name = "google_benchmark",
    patch_args = ["-p1"],
    patches = ["//:third_party/google_benchmark.patch"],
    sha256 = "ea2e94c24ddf6594d15c711c06ccd4486434d9cf3eca954e2af8a20c88f9f172",
    strip_prefix = "benchmark-%s" % GOOGLE_BENCHMARK_VERSION,
    url = "https://github.com/google/benchmark/archive/refs/tags/v%s.tar.gz" % GOOGLE_BENCHMARK_VERSION,
)

BAZEL_CLANG_FORMAT_VERSION = "f4198b68887699a4d1862e44458e4969ad69fc8a"

http_archive(
    name = "bazel_clang_format",
    sha256 = "bd75df6dae8d290a716e1812c463ef4ab36869b5557d8a6dd6abb8315acfc6ac",
    strip_prefix = "bazel_clang_format-%s" % BAZEL_CLANG_FORMAT_VERSION,
    url = "https://github.com/oliverlee/bazel_clang_format/archive/%s.tar.gz" % BAZEL_CLANG_FORMAT_VERSION,
)

BAZEL_CLANG_TIDY_VERSION = "aae87699cca19d8f6e84538576ab47587043d1d2"

http_archive(
    name = "bazel_clang_tidy",
    sha256 = "ee7d89375b5c6554b40ea1b1132a8cf7e3e269f7c2f6b2f595e4c7181d44b736",
    strip_prefix = "bazel_clang_tidy-%s" % BAZEL_CLANG_TIDY_VERSION,
    url = "https://github.com/oliverlee/bazel_clang_tidy/archive/%s.tar.gz" % BAZEL_CLANG_TIDY_VERSION,
)

http_archive(
    name = "buildifier_prebuilt",
    sha256 = "e46c16180bc49487bfd0f1ffa7345364718c57334fa0b5b67cb5f27eba10f309",
    strip_prefix = "buildifier-prebuilt-6.1.0",
    urls = [
        "https://github.com/keith/buildifier-prebuilt/archive/6.1.0.tar.gz",
    ],
)

load("@buildifier_prebuilt//:deps.bzl", "buildifier_prebuilt_deps")

buildifier_prebuilt_deps()

load("@bazel_skylib//:workspace.bzl", "bazel_skylib_workspace")

bazel_skylib_workspace()

load("@buildifier_prebuilt//:defs.bzl", "buildifier_prebuilt_register_toolchains")

buildifier_prebuilt_register_toolchains()

COMPILE_COMMANDS_VERSION = "3dddf205a1f5cde20faf2444c1757abe0564ff4c"

http_archive(
    name = "hedron_compile_commands",
    sha256 = "3cd0e49f0f4a6d406c1d74b53b7616f5e24f5fd319eafc1bf8eee6e14124d115",
    strip_prefix = "bazel-compile-commands-extractor-%s" % COMPILE_COMMANDS_VERSION,
    url = "https://github.com/hedronvision/bazel-compile-commands-extractor/archive/%s.tar.gz" % COMPILE_COMMANDS_VERSION,
)

load("@hedron_compile_commands//:workspace_setup.bzl", "hedron_compile_commands_setup")

hedron_compile_commands_setup()