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C++ Rules for Bazel
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Googler 8c31dd406c Change cc_shared_library exports logic. 
Changes in this CL:
1. 'exports' attribute renamed to roots
2. Removed restrictions for exporting a rule in a different repository
3. Kept restrictions for rules in the same repository but not in the same
package or subpackages
4. To get around restrictions, instead of the exported_by tag, one can use the
cc_shared_library_permissions rule
5. Added exports_filter that will match libraries in the transitive closure of
a root. Anything matched by the exports_filter will also be exported.
Restrictions as in 4. still apply.

RELNOTES:none
PiperOrigin-RevId: 310547916
Change-Id: I32d8e0d4dd4bcc9c9e92f4ff3c5b2a01564c31b2
 		2020-05-08 06:35:54 -07:00
.bazelci Build with Bazel@last_downstream_green 2020-03-09 06:38:07 -07:00
cc Instead disable the buildifier warning 2020-05-04 11:59:13 +02:00
distro Fix buildifier warnings in @rules_cc 2019-10-24 07:01:25 -07:00
examples Change cc_shared_library exports logic. 2020-05-08 06:35:54 -07:00
tests/load_from_macro Fix immutable frozen set bug in defs.bzl 2019-11-29 04:19:02 -08:00
third_party Add optional tool_path_origin to Tools in C++ crosstool 2020-05-06 06:52:27 -07:00
tools Automatic code cleanup. 2020-03-10 04:40:22 -07:00
.gitignore Add things needed for rules_cc to build & test in the open 2019-01-09 08:59:09 +01:00
BUILD rules_cc: Add top-level BUILD file to distribution. 2019-10-17 08:30:50 -07:00
CODEOWNERS Add CODEOWNERS for rules_cc. 2019-02-05 02:22:15 -08:00
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
README.md Replace Python with Starlark. 2020-02-03 09:25:33 +03:00
WORKSPACE Remove need for exported_by or linked_statically_by 2020-02-12 08:01:50 -08:00
internal_deps.bzl Fix buildifier warnings in @rules_cc 2019-10-24 07:01:25 -07:00
internal_setup.bzl Fix buildifier warnings in @rules_cc 2019-10-24 07:01:25 -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 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/TODO"],
    sha256 = "TODO",
)

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

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

cc_library(
    ...
)

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: