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C++ Rules for Bazel
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Googler da65f24105 Add release automation for rules_cc 
Tracking issue: https://github.com/bazelbuild/rules_cc/issues/268

This CL adds a release workflow for rules_cc. It also adds a ci.bazelrc file that is used to configure Bazel on CI.

The release workflow is based on the release workflow for rules_proto. It uses the same release script, which generates a source archive and a release notes file. The release notes file is used as the top of the release notes for the release.

The ci.bazelrc file is used to configure Bazel on CI. It sets the --announce_rc option, which causes Bazel to print a message to the console whenever an option is set. It also sets the --disk_cache option, which tells Bazel to use a disk cache for downloaded external artifacts. This can help to speed up builds.

Finally, the ci.bazelrc file sets the --test_output option to errors. This causes Bazel to print test logs to the console, even if the tests pass. This can be helpful for debugging test failures.

PiperOrigin-RevId: 694052882
Change-Id: I7a55ec2d9b6b9161428dd3bb3c6c6b78b789ada2
 		2024-11-07 03:17:54 -08:00
.bazelci Remove bad target 2024-11-06 14:19:32 +01:00
.bcr Add bazel version 2024-10-04 13:28:28 +02:00
.github/workflows Add release automation for rules_cc 2024-11-07 03:17:54 -08:00
cc Remove defs.bzl usages 2024-11-06 07:35:53 -08:00
docs Deduplicate tools for `cc_tool_map` 2024-10-15 14:30:10 +02:00
examples Remove defs.bzl usages 2024-11-06 07:35:53 -08:00
tests Fix rules_shell copybara 2024-11-06 07:36:04 -08:00
.bazelignore Rule-based toolchain example 2024-09-06 11:08:58 -07:00
.gitignore Update ignore all bazel-generated dirs 2024-10-03 10:10:35 -07:00
AUTHORS Create AUTHORS 2021-03-25 11:49:43 -04:00
BUILD Remove defs.bzl usages 2024-11-06 07:35:53 -08:00
CODEOWNERS Update CODEOWNERS for rules_cc 2024-10-24 07:37:56 -07:00
CONTRIBUTING.md Add initial content of rules_cc repo 2019-01-09 08:58:14 +01:00
ISSUE_TEMPLATE.md Fix issue template 2019-02-27 01:37:03 -08:00
LICENSE Internal change 2019-01-09 08:56:00 +01:00
MODULE.bazel Add release automation for rules_cc 2024-11-07 03:17:54 -08:00
README.md Update README.md 2024-08-14 14:57:09 -07:00
WORKSPACE Use rules_shell 2024-11-06 14:21:54 +01:00
WORKSPACE.bzlmod Remove cc_proto_library from defs.bzl 2024-10-30 09:22:18 -07:00
renovate.json Update renovate.json 2019-11-03 11:40:55 +01:00

README.md

C++ rules for Bazel

  • Postsubmit Build status
  • Postsubmit + Current Bazel Incompatible flags Build status

This repository contains a Starlark implementation of C++ rules in Bazel.

The rules are being incrementally converted from their native implementations in the Bazel source tree.

For the list of C++ rules, see the Bazel documentation.

Getting Started

There is no need to use rules from this repository just yet. If you want to use rules_cc anyway, add the following to your WORKSPACE file:

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

http_archive(
    name = "rules_cc",
    urls = ["https://github.com/bazelbuild/rules_cc/archive/refs/tags/<VERSION>.tar.gz"],
    sha256 = "...",
)

Then, in your BUILD files, import and use the rules:

load("@rules_cc//cc:defs.bzl", "cc_library")

cc_library(
    ...
)

Using the rules_cc toolchain

This repo contains an auto-detecting toolchain that expects to find tools installed on your host machine. This is non-hermetic, and may have varying behaviors depending on the versions of tools found.

There are third-party contributed hermetic toolchains you may want to investigate:

If you'd like to use the cc toolchain defined in this repo, add this to your WORKSPACE after you include rules_cc:

load("@rules_cc//cc:repositories.bzl", "rules_cc_dependencies", "rules_cc_toolchains")

rules_cc_dependencies()

rules_cc_toolchains()

Migration Tools

This repository also contains migration tools that can be used to migrate your project for Bazel incompatible changes.

Legacy fields migrator

Script that migrates legacy crosstool fields into features (incompatible flag, tracking issue).

TLDR:

bazel run @rules_cc//tools/migration:legacy_fields_migrator -- \
  --input=my_toolchain/CROSSTOOL \
  --inline

Contributing

Bazel and rules_cc are the work of many contributors. We appreciate your help!

To contribute, please read the contribution guidelines: CONTRIBUTING.md.

Note that the rules_cc use the GitHub issue tracker for bug reports and feature requests only. For asking questions see: