carbon-lang/MODULE.bazel

# Part of the Carbon Language project, under the Apache License v2.0 with LLVM
# Exceptions. See /LICENSE for license information.
# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception

"""Bazel modules.

`MODULE.bazel.lock` may change locally when `bazel` is executed. This means one
of:

1.  An input is changing, typically `MODULE.bazel` or `.bazelversion`.
    -   Running `bazel mod deps` provides a canonical update to
        `MODULE.bazel.lock`; include the changes.
    -   GitHub test actions may also identify platform-specific lockfile
        updates.
2.  The host platform hasn't yet been added to the lock file.
    -   Platforms tested with GitHub actions are kept up-to-date. Other
        platforms may fall out of sync due to `bazel` or dependency changes,
        and should be updated with a PR the same way a platform is added.
    -   Running `bazel mod deps` provides a canonical update to
        `MODULE.bazel.lock`; create a PR with those changes in order to include
        the host platform.
"""

module(name = "carbon")

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

bazel_dep(name = "abseil-cpp", version = "20260107.0")
bazel_dep(name = "bazel_skylib", version = "1.9.0")
bazel_dep(name = "google_benchmark", version = "1.9.5")
bazel_dep(name = "googletest", version = "1.17.0.bcr.2")
bazel_dep(name = "re2", version = "2025-11-05.bcr.1")
bazel_dep(name = "rules_cc", version = "0.2.16")
bazel_dep(name = "rules_pkg", version = "1.2.0")
bazel_dep(name = "rules_shell", version = "0.6.1")
bazel_dep(name = "tcmalloc", version = "0.0.0-20250927-12f2552")
bazel_dep(name = "tree-sitter-bazel", version = "0.26.3.bcr.1")

# The registry only has an old version. We use that here to avoid a miss but
# override it with a newer version.
bazel_dep(name = "libpfm", version = "4.11.0")

libpfm_version = "4.13.0"

# The official site is https://perfmon2.sourceforge.net/, but SourceForge makes
# it difficult to download from bazel. On GitHub action runners,
# https://git.code.sf.net/p/perfmon2/libpfm4 seems to be blocked. As a
# consequence, use a mirror.
archive_override(
    module_name = "libpfm",
    integrity = "sha256-sGBx1+UoQCplBCc+pwA1Tr/PS2L/4jnLZHH82wSuPz0=",
    patch_strip = 1,
    patches = ["@//bazel/libpfm:0001-Introduce-a-simple-native-Bazel-build.patch"],
    strip_prefix = "libpfm4-{0}".format(libpfm_version),
    urls = ["https://github.com/wcohen/libpfm4/archive/v{0}.tar.gz".format(libpfm_version)],
)

bazel_dep(name = "bazel_clang_tidy", dev_dependency = True)
git_override(
    module_name = "bazel_clang_tidy",
    # HEAD as of 2026-01-28.
    commit = "c4d35e0d0b838309358e57a2efed831780f85cd0",
    remote = "https://github.com/erenon/bazel_clang_tidy.git",
)

bazel_cc_toolchain = use_extension(
    "//bazel/cc_toolchains:clang_configuration.bzl",
    "clang_toolchain_extension",
)
use_repo(bazel_cc_toolchain, "bazel_cc_toolchain")

register_toolchains("@bazel_cc_toolchain//:all")

bazel_dep(name = "hedron_compile_commands", dev_dependency = True)
git_override(
    module_name = "hedron_compile_commands",
    # HEAD as of 2026-01-28.
    commit = "abb61a688167623088f8768cc9264798df6a9d10",
    remote = "https://github.com/hedronvision/bazel-compile-commands-extractor.git",
)

boost_unordered_version = "1.88.0"

http_archive(
    name = "boost_unordered",
    build_file = "@//:third_party/boost_unordered/BUILD.bazel",
    integrity = "sha256-a5ydXEQCspPhFmCD9vNa3JUIVeitbodEYaJhfOSO8no=",
    strip_prefix = "boost_unordered-{0}".format(boost_unordered_version),
    urls = ["https://github.com/MikePopoloski/boost_unordered/archive/v{0}.tar.gz".format(boost_unordered_version)],
)

# Required for llvm-project.
bazel_dep(name = "platforms", version = "1.0.0")
bazel_dep(name = "protobuf", version = "34.0-rc1", repo_name = "com_google_protobuf")
bazel_dep(name = "zlib-ng", version = "2.0.7", repo_name = "llvm_zlib")
bazel_dep(name = "zstd", version = "1.5.7.bcr.1", repo_name = "llvm_zstd")

###############################################################################
# llvm-project
###############################################################################

# We pin to specific upstream commits and try to track top-of-tree reasonably
# closely rather than pinning to a specific release.
# HEAD as of 2026-02-12.
llvm_project_version = "b20d7d0278059735bb8eb538ac51e13b58895c1a"

# Load a repository for the raw llvm-project, pre-overlay.
http_archive(
    name = "llvm-raw",
    build_file_content = "# empty",
    integrity = "sha256-sRZjS3KippWoaVcr1mWtJ1kFZ+jrjb/KoNkzh+N8HOM=",
    patch_args = ["-p1"],
    patches = [
        "@carbon//bazel/llvm_project:0001_Patch_for_mallinfo2_when_using_Bazel_build_system.patch",
        "@carbon//bazel/llvm_project:0002_Added_Bazel_build_for_compiler_rt_fuzzer.patch",
        "@carbon//bazel/llvm_project:0004_Introduce_basic_sources_exporting_for_libunwind.patch",
        "@carbon//bazel/llvm_project:0005_Introduce_basic_sources_exporting_for_libcxx_and_libcxxabi.patch",
        "@carbon//bazel/llvm_project:0009_Introduce_starlark_exporting_compiler-rt_build_information.patch",
    ],
    strip_prefix = "llvm-project-{0}".format(llvm_project_version),
    urls = ["https://github.com/llvm/llvm-project/archive/{0}.tar.gz".format(llvm_project_version)],
)

# Apply the overlay to produce llvm-project.
llvm_project = use_extension(
    "//bazel/llvm_project:llvm_project.bzl",
    "llvm_project",
)
use_repo(llvm_project, "llvm-project")

###############################################################################
# Python
###############################################################################

bazel_dep(name = "rules_python", version = "1.8.3")

python = use_extension("@rules_python//python/extensions:python.bzl", "python")
python.toolchain(
    python_version = "3.11",
)
use_repo(python, "python_versions")

###############################################################################
# Bazel integration testing
###############################################################################

bazel_dep(
    name = "rules_bazel_integration_test",
    version = "0.36.0",
    dev_dependency = True,
)

# We test against our current Bazel version, the latest release, and the latest
# release candidate.
bazel_binaries = use_extension(
    "@rules_bazel_integration_test//:extensions.bzl",
    "bazel_binaries",
    dev_dependency = True,
)
bazel_binaries.download(version_file = "//:.bazelversion")
bazel_binaries.download(version = "latest")
bazel_binaries.download(version = "last_rc")
use_repo(
    bazel_binaries,
    "bazel_binaries",
    "bazel_binaries_bazelisk",
    "build_bazel_bazel_.bazelversion",
    "build_bazel_bazel_last_rc",
    "build_bazel_bazel_latest",
)