mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 21:10:12 +01:00
Jon Ross-Perkins
6f6e46ef57
The WORKSPACE file is deprecated; support is already off by default, and it'll be removed in the next major bazel release. Our main dependency is tree-sitter, and I'm trying to address that here. We're currently using https://github.com/elliottt/rules_tree_sitter, but that hasn't been updated in a couple years, meaning it lacks MODULE.bazel support. In the registry, there's https://registry.bazel.build/modules/tree-sitter-bazel, but this is only the *parser* libraries of tree-sitter, not the *generator*. I'm using it for that much, at least. For the *generator*, which transforms grammar.js to parser.c/h, I'm just requiring a non-hermetic invocation (i.e., people who want to work on it will need to install tree-sitter; see the README.md updates). I tried running it manually, but parser.c is about 600 KB; pre-commit rejects files that large and I don't think an exception makes sense to override for this (it'd probably also grow substantially if the grammar were updated to cover more syntax). In order to make the non-hermetic call not break "bazel build //..." for most developers, I'm marking most targets in the package as manual. Note, I did look long and hard at using `aspect_rules_js`/`rules_nodejs` to invoke npm. This took a lot of time, and I have a commit that's mostly working, except I hit a point where it uses `declare_symlink` which we disallow for compatibility reasons (commit "Lots of work for figuring out rule_js uses declare_symlink" on the PR). As a consequence, I think we can't use the primary supported ways to have hermetic npm calls. Also, `treesitter` -> `tree_sitter` because it's generally called `tree-sitter`, two words. We even had a `treesitter/src/tree_sitter` directory so it's a bit inconsistent. As far as bugs here, the parser library breaks bazel queries, e.g. the error: ``` ERROR: Evaluation of query "somepath(//..., @llvm-project//third-party/unittest:gtest)" failed: preloading transitive closure failed: no such package '@@[unknown repo 'platforms' requested from @@tree-sitter-bazel+]//': The repository '@@[unknown repo 'platforms' requested from @@tree-sitter-bazel+]' could not be resolved: No repository visible as '@platforms' from repository '@@tree-sitter-bazel+' ``` I'm just excluding tree_sitter from queries where I can to work around the error.
154 lines
5.9 KiB
Python
154 lines
5.9 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 = "20240722.0.bcr.2")
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bazel_dep(name = "bazel_skylib", version = "1.7.1")
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bazel_dep(name = "google_benchmark", version = "1.8.5")
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bazel_dep(name = "googletest", version = "1.15.2")
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bazel_dep(name = "re2", version = "2024-07-02.bcr.1")
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bazel_dep(name = "rules_pkg", version = "1.0.1")
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bazel_dep(name = "tree-sitter-bazel", version = "0.24.4")
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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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# The registry has a snapshot, but upstream is active and not regularly marking
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# releases. We start with the BCR snapshot to avoid a miss and then override it
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# with a more recent commit.
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bazel_dep(name = "tcmalloc", version = "0.0.0-20240411-5ed309d", dev_dependency = True)
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git_override(
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module_name = "tcmalloc",
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# HEAD as of 2025-01-09.
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commit = "d02a005a369252a4f239b36cc698daf7f87ba648",
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remote = "https://github.com/google/tcmalloc.git",
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)
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bazel_dep(name = "rules_bison", version = "0.3")
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bazel_dep(name = "rules_flex", version = "0.3")
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bazel_dep(name = "rules_m4", version = "0.2.4")
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bazel_dep(name = "rules_cc", version = "0.1.0")
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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 = "0.0.10")
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bazel_dep(name = "zlib", version = "1.3.1.bcr.4", repo_name = "llvm_zlib")
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bazel_dep(name = "zstd", version = "1.5.6", 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 2024-11-13.
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llvm_project_version = "97298853b4de70dbce9c0a140ac38e3ac179e02e"
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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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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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],
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sha256 = "ac811cb61d281043c865c39260a5114a0e96d16ec0e4eb74a2516a24981b9064",
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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 = "1.0.0")
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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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