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pigweed / third_party / github / bazelbuild / rules_rust / fe9a91e8b42f731aeb3b596246f6bf4bb9a88dc3
commitfe9a91e8b42f731aeb3b596246f6bf4bb9a88dc3[log] [tgz]
authorMarcel Hlopko <hlopko@bazel.build>Mon Nov 04 00:15:38 2019 +0100
committerMarco Farrugia <afmarco@gmail.com>Sun Nov 03 18:15:38 2019 -0500
treed0d164d872ac9423228058b7f28d93c68cb5382b
parentc2ca4b70116389e4f5396243e913fa80572fc68a [diff]
Run buildifier to reformat bzl/BUILD files (#260)

* Run buildifier to reformat bzl/BUILD files

To make followup migration PRs less noisy. Buildifier cannot be told not
to reformat the code when it's told to migrate for Bazel's incompatible
changes.

* Run buildifier on wasm_bindgen
300 files changed
tree: d0d164d872ac9423228058b7f28d93c68cb5382b
  1. .bazelci/
  2. bindgen/
  3. docs/
  4. examples/
  5. proto/
  6. rust/
  7. test/
  8. tools/
  9. util/
  10. wasm_bindgen/
  11. .gitignore
  12. AUTHORS
  13. BUILD
  14. CODEOWNERS
  15. CONTRIBUTING.md
  16. CONTRIBUTORS
  17. libc.BUILD
  18. LICENSE.txt
  19. package-lock.json
  20. package.json
  21. README.md
  22. renovate.json
  23. WORKSPACE
  24. workspace.bzl
README.md

Rust Rules

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

Overview

This repository provides rules for building Rust projects with Bazel.

Basics

WebAssembly

To build a rust_binary for wasm32-unknown-unknown add the --platforms=//rust/platform:wasm flag.

bazel build @examples//hello_world_wasm --platforms=//rust/platform:wasm

rust_wasm_bindgen will automatically transition to the wasm platform and can be used when building wasm code for the host target.

Protobuf

with an overview here.

Setup

To use the Rust rules, add the following to your WORKSPACE file to add the external repositories for the Rust toolchain:

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

http_archive(
    name = "io_bazel_rules_rust",
    sha256 = "b6da34e057a31b8a85e343c732de4af92a762f804fc36b0baa6c001423a70ebc",
    strip_prefix = "rules_rust-55f77017a7f5b08e525ebeab6e11d8896a4499d2",
    urls = [
        # Master branch as of 2019-10-07
        "https://github.com/bazelbuild/rules_rust/archive/55f77017a7f5b08e525ebeab6e11d8896a4499d2.tar.gz",
    ],
)

http_archive(
    name = "bazel_skylib",
    sha256 = "9a737999532daca978a158f94e77e9af6a6a169709c0cee274f0a4c3359519bd",
    strip_prefix = "bazel-skylib-1.0.0",
    url = "https://github.com/bazelbuild/bazel-skylib/archive/1.0.0.tar.gz",
)

load("@io_bazel_rules_rust//rust:repositories.bzl", "rust_repositories")
rust_repositories()

load("@io_bazel_rules_rust//:workspace.bzl", "bazel_version")
bazel_version(name = "bazel_version")

The rules are under active development, as such the lastest commit on the master branch should be used. master currently requires Bazel >= 0.26.0.

External Dependencies

Currently the most common approach to managing external dependencies is using cargo-raze to generate BUILD files for Cargo crates.

Roadmap

  • Improve expressiveness of features and support for Cargo's feature groups.
  • Add cargo_crate workspace rule for pulling crates from Cargo.