mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 22:02:23 +01:00
Chandler Carruth
529dcfcfec
I wasn't sure I'd be able to really test this code path, but then I remembered that Bazel has a whole platform for running Bazel from within an integration test, and it turns out to work brilliantly. It even lets us point the child Bazel invocations to the just-built toolchain. This should both give us confidence that we don't accidentally hit a Bazel incompatibility with the example project, and it should ensure that if something about the installed toolchain would stop being compatible with building via Bazel we'll catch it early. The tests are integration tests and so a bit slow: 15s or so. But `//examples/...` is already pretty expensive and no other testing patterns are impacted.
174 lines
6.6 KiB
Python
174 lines
6.6 KiB
Python
# Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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# Exceptions. See /LICENSE for license information.
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# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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"""Bazel modules.
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`MODULE.bazel.lock` may change locally when `bazel` is executed. This means one
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of:
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1. An input is changing, typically `MODULE.bazel` or `.bazelversion`.
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- Running `bazel mod deps` provides a canonical update to
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`MODULE.bazel.lock`; include the changes.
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- GitHub test actions may also identify platform-specific lockfile
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updates.
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2. The host platform hasn't yet been added to the lock file.
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- Platforms tested with GitHub actions are kept up-to-date. Other
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platforms may fall out of sync due to `bazel` or dependency changes,
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and should be updated with a PR the same way a platform is added.
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- Running `bazel mod deps` provides a canonical update to
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`MODULE.bazel.lock`; create a PR with those changes in order to include
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the host platform.
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"""
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module(name = "carbon")
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http_archive = use_repo_rule(
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"@bazel_tools//tools/build_defs/repo:http.bzl",
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"http_archive",
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)
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bazel_dep(name = "abseil-cpp", version = "20250512.1")
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bazel_dep(name = "bazel_skylib", version = "1.9.0")
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bazel_dep(name = "google_benchmark", version = "1.9.4")
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bazel_dep(name = "googletest", version = "1.17.0")
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bazel_dep(name = "re2", version = "2024-07-02.bcr.1")
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bazel_dep(name = "rules_cc", version = "0.2.6")
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bazel_dep(name = "rules_pkg", version = "1.1.0")
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bazel_dep(name = "rules_shell", version = "0.6.1")
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bazel_dep(name = "tcmalloc", version = "0.0.0-20250331-43fcf6e")
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bazel_dep(name = "tree-sitter-bazel", version = "0.26.3")
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# The registry only has an old version. We use that here to avoid a miss but
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# override it with a newer version.
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bazel_dep(name = "libpfm", version = "4.11.0")
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libpfm_version = "4.13.0"
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# The official site is https://perfmon2.sourceforge.net/, but SourceForge makes
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# it difficult to download from bazel. On GitHub action runners,
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# https://git.code.sf.net/p/perfmon2/libpfm4 seems to be blocked. As a
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# consequence, use a mirror.
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archive_override(
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module_name = "libpfm",
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integrity = "sha256-sGBx1+UoQCplBCc+pwA1Tr/PS2L/4jnLZHH82wSuPz0=",
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patch_strip = 1,
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patches = ["@//bazel/libpfm:0001-Introduce-a-simple-native-Bazel-build.patch"],
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strip_prefix = "libpfm4-{0}".format(libpfm_version),
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urls = ["https://github.com/wcohen/libpfm4/archive/v{0}.tar.gz".format(libpfm_version)],
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)
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bazel_dep(name = "bazel_clang_tidy", dev_dependency = True)
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git_override(
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module_name = "bazel_clang_tidy",
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# HEAD as of 2025-01-09.
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commit = "db677011c7363509a288a9fb3bf0a50830bbf791",
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remote = "https://github.com/erenon/bazel_clang_tidy.git",
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)
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bazel_cc_toolchain = use_extension(
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"//bazel/cc_toolchains:clang_configuration.bzl",
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"clang_toolchain_extension",
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)
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use_repo(bazel_cc_toolchain, "bazel_cc_toolchain")
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register_toolchains("@bazel_cc_toolchain//:all")
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bazel_dep(name = "hedron_compile_commands", dev_dependency = True)
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git_override(
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module_name = "hedron_compile_commands",
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# HEAD as of 2025-01-09.
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commit = "4f28899228fb3ad0126897876f147ca15026151e",
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remote = "https://github.com/hedronvision/bazel-compile-commands-extractor.git",
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)
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boost_unordered_version = "1.85.0"
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http_archive(
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name = "boost_unordered",
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build_file = "@//:third_party/boost_unordered/BUILD.bazel",
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integrity = "sha256-2dQ4IQH/xFiK1iWCkrMYLeR8zsSQqGchKOdTuf1u0zI=",
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strip_prefix = "boost_unordered-{0}".format(boost_unordered_version),
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urls = ["https://github.com/MikePopoloski/boost_unordered/archive/v{0}.tar.gz".format(boost_unordered_version)],
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)
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# Required for llvm-project.
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bazel_dep(name = "platforms", version = "1.0.0")
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bazel_dep(name = "protobuf", version = "33.1", repo_name = "com_google_protobuf")
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bazel_dep(name = "zlib-ng", version = "2.0.7", repo_name = "llvm_zlib")
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bazel_dep(name = "zstd", version = "1.5.7", repo_name = "llvm_zstd")
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###############################################################################
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# llvm-project
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###############################################################################
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# We pin to specific upstream commits and try to track top-of-tree reasonably
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# closely rather than pinning to a specific release.
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# HEAD as of 2026-01-08.
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llvm_project_version = "21a1e6e6a70d70635c68b9aaa54f816ae36a6416"
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# Load a repository for the raw llvm-project, pre-overlay.
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http_archive(
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name = "llvm-raw",
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build_file_content = "# empty",
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integrity = "sha256-ouWG2d4Cob9P6+dxCLZnV4RldSOqZp7mtwd6vd+ZK3Q=",
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patch_args = ["-p1"],
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patches = [
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"@carbon//bazel/llvm_project:0001_Patch_for_mallinfo2_when_using_Bazel_build_system.patch",
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"@carbon//bazel/llvm_project:0002_Added_Bazel_build_for_compiler_rt_fuzzer.patch",
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"@carbon//bazel/llvm_project:0004_Introduce_basic_sources_exporting_for_libunwind.patch",
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"@carbon//bazel/llvm_project:0005_Introduce_basic_sources_exporting_for_libcxx_and_libcxxabi.patch",
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"@carbon//bazel/llvm_project:0008_Add_filegroups_for_installed_compiler-rt_headers.patch",
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],
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strip_prefix = "llvm-project-{0}".format(llvm_project_version),
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urls = ["https://github.com/llvm/llvm-project/archive/{0}.tar.gz".format(llvm_project_version)],
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)
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# Apply the overlay to produce llvm-project.
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llvm_project = use_extension(
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"//bazel/llvm_project:llvm_project.bzl",
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"llvm_project",
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)
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use_repo(llvm_project, "llvm-project")
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###############################################################################
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# Python
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###############################################################################
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bazel_dep(name = "rules_python", version = "1.6.0")
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python = use_extension("@rules_python//python/extensions:python.bzl", "python")
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python.toolchain(
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python_version = "3.11",
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)
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use_repo(python, "python_versions")
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###############################################################################
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# Bazel integration testing
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###############################################################################
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bazel_dep(
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name = "rules_bazel_integration_test",
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version = "0.36.0",
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dev_dependency = True,
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)
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# We test against our current Bazel version, the latest release, and the latest
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# release candidate.
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bazel_binaries = use_extension(
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"@rules_bazel_integration_test//:extensions.bzl",
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"bazel_binaries",
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dev_dependency = True,
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)
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bazel_binaries.download(version_file = "//:.bazelversion")
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bazel_binaries.download(version = "latest")
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bazel_binaries.download(version = "last_rc")
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use_repo(
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bazel_binaries,
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"bazel_binaries",
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"bazel_binaries_bazelisk",
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"build_bazel_bazel_.bazelversion",
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"build_bazel_bazel_last_rc",
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"build_bazel_bazel_latest",
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)
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